diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml index 6d775bc98..3f16a28be 100644 --- a/.github/workflows/release.yml +++ b/.github/workflows/release.yml @@ -144,6 +144,9 @@ jobs: - name: Install dependencies run: npm ci + - name: Download binaries for x64 + run: npx ts-node scripts/download-binaries.ts --arch x64 + - name: Get version and build date id: version shell: bash diff --git a/.gitignore b/.gitignore index f5439159e..a33d9088b 100644 --- a/.gitignore +++ b/.gitignore @@ -54,13 +54,9 @@ resources/st-compiler/**.spec resources/bin/**/xml2st resources/bin/**/xml2st.exe resources/bin/**/xml2st/ -resources/bin/**/iec2c -resources/bin/**/iec2c.exe -resources/bin/**/iec2iec -resources/bin/**/iec2iec.exe resources/bin/.binary-metadata.json resources/bin/**/.binary-metadata.json -resources/sources/MatIEC/lib/ +resources/strucpp/ # Playwright /test-results/ diff --git a/CLAUDE.md b/CLAUDE.md index 4c65cb6b9..78a71638d 100644 --- a/CLAUDE.md +++ b/CLAUDE.md @@ -288,6 +288,37 @@ When adding new code to covered directories, you must add corresponding tests to 3. Relink variables after variable table changes 4. Node IDs must be unique per flow +### IEC address allocation + alias registry + +Located in `src/backend/shared/utils/iec-address/` (byte-identical on +openplc-web). Pure functions, no IPC, no electron coupling. + +- **Address pool** (`address-pool.ts`): producer-only, target-scoped + view of every claimed IEC address. Producers = pin mapping, VPP + module slots, Modbus TCP remote IO points, EtherCAT channel + mappings. Capability scoping comes from `target-capabilities` — + switching targets activates / deactivates entire producers. + - Reservation pass: pin-mapping (Arduino-style fixed addresses). + - Allocation pass: every other producer in deterministic order. + - `nextFreeAddress(pool, prefix, isBit, startFrom?, alsoUsed?)` + replaces the old `generateIecAddress` helper. Pass `alsoUsed` for + in-flight allocations within a batch. +- **Alias registry** (`alias-registry.ts`): derived index on top of + the pool. `byAlias` / `byAddress` maps plus `duplicateAliases` + (first-wins). Pure function — rebuild on demand, cost is + O(producers). +- **Variable sync** (`sync-variable-aliases.ts`): pure function that + walks variables and either adopts (no alias bound but address + matches), refreshes (alias address moved), or orphans (alias gone). + Called from every producer-mutation site, target switch, + project load, and pre-compile via the + `projectActions.syncVariableAliases()` store action. + +The variable cell renders `alias ?? location` and shows an amber +warning glyph + tooltip when the alias is orphaned. Aliases are +intended to be unique system-wide; the registry's +`isAliasNameAvailable(name, ignoring?)` is the system-wide validator. + ## Environment - **Node.js:** >= 20.x < 24 diff --git a/binary-versions.json b/binary-versions.json index 11bfcee60..c9da319a4 100644 --- a/binary-versions.json +++ b/binary-versions.json @@ -1,10 +1,10 @@ { "xml2st": { - "version": "v4.0.3", + "version": "v4.0.5", "repository": "Autonomy-Logic/xml2st" }, - "matiec": { - "version": "v4.0.11", - "repository": "Autonomy-Logic/matiec" + "strucpp": { + "version": "v0.4.13", + "repository": "Autonomy-Logic/STruCpp" } } diff --git a/configs/webpack/webpack.config.renderer.dev.ts b/configs/webpack/webpack.config.renderer.dev.ts index 645ed4a57..bb45bff1f 100644 --- a/configs/webpack/webpack.config.renderer.dev.ts +++ b/configs/webpack/webpack.config.renderer.dev.ts @@ -111,6 +111,12 @@ const configuration: webpack.Configuration = { test: /\.(woff|woff2|eot|ttf|otf)$/i, type: 'asset/resource', }, + // Static JS assets — used by the STruC++ LSP worker. See + // webpack.config.renderer.prod.ts for the same rule + rationale. + { + resourceQuery: /^\?url$/, + type: 'asset/resource', + }, // Images { test: /\.(png|jpg|jpeg|gif)$/i, @@ -188,7 +194,12 @@ const configuration: webpack.Configuration = { }), new MonacoEditorWebpackPlugin({ - languages: ['python'], + // `python` covers the Python POU editor; `json` covers the + // Library Project's manifest tab (`library.json`). Without + // `json` here, opening the manifest tab spawns a worker with + // no asset registered, which surfaces as an unhandled Worker + // `error` event in the renderer console. + languages: ['python', 'json'], }), ], diff --git a/configs/webpack/webpack.config.renderer.prod.ts b/configs/webpack/webpack.config.renderer.prod.ts index 0ecb1e14c..f04a1f69e 100644 --- a/configs/webpack/webpack.config.renderer.prod.ts +++ b/configs/webpack/webpack.config.renderer.prod.ts @@ -81,6 +81,15 @@ const configuration: webpack.Configuration = { test: /\.(woff|woff2|eot|ttf|otf)$/i, type: 'asset/resource', }, + // Static JS assets — used by the STruC++ LSP worker. The + // strucpp browser-server bundle is a pre-built IIFE that + // webpack must NOT re-bundle (it already self-contains the + // compiler). Importing it with `?url` returns the emitted + // asset's URL so `new Worker(url)` spawns it directly. + { + resourceQuery: /^\?url$/, + type: 'asset/resource', + }, // Images { test: /\.(png|jpg|jpeg|gif)$/i, @@ -154,7 +163,12 @@ const configuration: webpack.Configuration = { }), new MonacoEditorWebpackPlugin({ - languages: ['python'], + // `python` covers the Python POU editor; `json` covers the + // Library Project's manifest tab (`library.json`). Without + // `json` here, opening the manifest tab spawns a worker with + // no asset registered, which surfaces as an unhandled Worker + // `error` event in the renderer console. + languages: ['python', 'json'], }), ], } diff --git a/docs/debugger-scalability-analysis.md b/docs/debugger-scalability-analysis.md new file mode 100644 index 000000000..5e7338c71 --- /dev/null +++ b/docs/debugger-scalability-analysis.md @@ -0,0 +1,1201 @@ +# Debugger Scalability Analysis & Fix Strategies + +## Problem Statement + +OpenPLC Editor v4 fails to compile projects with large numbers of variables. A real-world user project with ~3,500 global variables and 16 program instances produces **32,774 debug variable entries**, generating a `debug.c` file of **33,186 lines** (~2.5 MB). Compilation fails on AVR targets with: + +``` +debug.c:32926:1: error: size of array is too large +``` + +The root cause is that the live debugger architecture requires a **compile-time static C array** (`debug_vars[]`) containing one entry per scalar variable in the entire project. Arrays are expanded element-by-element, and every internal member of every function block instance gets its own entry. This does not scale. + +--- + +## Architecture Overview + +### Current Compilation Pipeline + +``` +PLCopen XML ──→ xml2st ──→ Structured Text + debug.c ──→ MatIEC ──→ C files ──→ Runtime (gcc/arduino-cli) + │ │ + ├── VARIABLES.csv (generated by MatIEC) │ + └── debug.c (generated by xml2st) │ + └──→ POUS.h, POUS.inc, Config0.h, Res0.inc +``` + +### Current Debug Variable Flow + +1. **MatIEC** generates `VARIABLES.csv` — one line per scalar leaf variable in the entire program. Arrays are expanded to individual elements. Function block members are expanded recursively. + +2. **xml2st** (`ProjectController.py`) reads `VARIABLES.csv` and generates `debug.c` containing: + - `extern` declarations for all top-level variables + - A static `debug_vars[]` array: `{pointer_to_variable, type_enum}` per variable + - `get_var_count()`, `get_var_size()`, `get_var_addr()`, `force_var()`, `set_trace()` functions + +3. **Runtime** (`debug_handler.c`) exposes a Modbus-like debug protocol: + - `0x41 DEBUG_INFO` — returns variable count (uint16_t) + - `0x43 DEBUG_GET` — read a contiguous range of variables by index + - `0x44 DEBUG_GET_LIST` — read a list of specific variable indexes + - `0x42 DEBUG_SET` — force/unforce a variable by index + - `0x45 DEBUG_GET_MD5` — verify program hash match + +4. **Editor** (`workspace-screen.tsx`) polls only the variables currently visible on screen using `DEBUG_GET_LIST`, mapping composite keys (`programName:varName`) to debug indexes via the parsed `debug.c`. + +### Key Data Structures + +**Generated debug.c (compile-time):** +```c +static const struct { + void *ptr; + __IEC_types_enum type; +} debug_vars[] = { + {&(RES0__INSTANCE0.MOTOR_SPEED), INT_ENUM}, + {&(RES0__INSTANCE16.M_AIDATA.value.table[0]), INT_ENUM}, + {&(RES0__INSTANCE16.M_AIDATA.value.table[1]), INT_ENUM}, + // ... 32,774 entries total +}; +``` + +**Runtime protocol (uint16_t indexes):** +```c +uint16_t get_var_count(void); // max 65,535 +size_t get_var_size(size_t idx); +void *get_var_addr(size_t idx); +void force_var(size_t idx, bool forced, void *val); +``` + +--- + +## Detailed Failure Analysis + +### 1. Static Array Size Exceeds Compiler/Linker Limits + +The `debug_vars[]` array with 32,774 entries consumes: + +| Target | Pointer Size | Enum Size | Entry Size | Total Array | +|--------|-------------|-----------|------------|-------------| +| AVR (8-bit) | 2 bytes | 2 bytes | 4 bytes | **131 KB** | +| ARM (32-bit) | 4 bytes | 4 bytes | 8 bytes | **262 KB** | +| x86_64 | 8 bytes | 4+4 pad | 16 bytes | **524 KB** | + +On AVR (ATmega2560: 256 KB flash, 8 KB SRAM), a 131 KB static array exceeds what can fit in a single linker section or even in total flash alongside the actual PLC program. The compiler correctly rejects this. + +Even on desktop targets where memory is abundant, a 524 KB static array in the data segment is wasteful when the user may only be debugging a handful of variables at a time. + +### 2. Array Element Explosion + +The largest contributors to the 32,774 entries in the user's project: + +| Variable Path | Elements | % of Total | +|--------------|----------|------------| +| `INSTANCE16.M_AIDATA.value.table[0..3999]` | 4,000 | 12.2% | +| `INSTANCE16.O_AIDATA.value.table[0..3999]` | 4,000 | 12.2% | +| `INSTANCE5.M_FBUS` (struct array) | 2,970 | 9.1% | +| `INSTANCE3.M_FBBW` (struct array) | 2,090 | 6.4% | +| `INSTANCE13.M_FBANFORDERUNGWP_EZ` | 1,835 | 5.6% | +| `INSTANCE4.M_FBHZMITUS` | 1,580 | 4.8% | +| Other array expansions | ~2,000 | 6.1% | +| **Total array-expanded entries** | **~18,475** | **56.4%** | + +Over half the entries are just individual array elements that could be represented as a single entry with a base pointer + element count. + +### 3. Function Block Member Expansion + +MatIEC's VARIABLES.csv expands every member of every function block instance. A function block with 50 members instantiated in 10 programs generates 500 entries. Many of these are internal FB state that users never inspect directly. + +In the user's project, ~14,000 entries come from FB member expansion of 16 program instances, each containing multiple complex function blocks with dozens of I/O pins and internal variables. + +### 4. uint16_t Variable Count Cap + +The debug protocol uses `uint16_t` for: +- Variable count in `DEBUG_INFO` response (2 bytes) +- Variable indexes in `DEBUG_GET`, `DEBUG_SET`, `DEBUG_GET_LIST` requests +- `get_var_count()` return type + +This caps the system at **65,535 variables**. The user's project is already at 32,774 — a project with twice the complexity would silently overflow, causing memory corruption or incorrect variable reads. + +### 5. Editor-Side Regex Parsing + +The editor parses `debug.c` using: +```ts +const debugVarsMatch = content.match(/debug_vars\[\]\s*=\s*\{([\s\S]*?)\};/) +``` + +For a 2.5 MB file with 32K entries, this single regex capture group match is expensive. The subsequent per-entry regex iteration (`entryRegex.exec()`) runs 32K times. This adds noticeable delay to debugger connection setup. + +### 6. VARIDX_SIZE Protocol Limit + +The runtime's `debugGetTraceList()` uses a stack-allocated buffer: +```c +#define VARIDX_SIZE 256 +uint16_t varidx_array[VARIDX_SIZE]; +``` + +This limits a single `DEBUG_GET_LIST` request to 256 variable indexes. The editor handles this by batching, but it means multiple round-trips are needed when debugging many variables simultaneously. + +--- + +## Fix Strategies + +### Strategy A: Platform-Aware Generation (Quick Win) + +**Goal:** Unblock compilation for the user's project immediately by adapting debug.c generation to the target platform's constraints. + +#### Implementation Details + +**1. Add `--target` flag to xml2st's `--generate-debug` command:** + +In `xml2st/xml2st.py`, extend the argument parser: +```python +parser.add_argument( + '--generate-debug', + nargs='+', + metavar=('ST_FILE', 'CSV_FILE'), + type=str, + help='Paths to the ST file and the variables CSV file, optionally followed by --target ', +) +parser.add_argument( + '--target', + type=str, + default='linux', + choices=['linux', 'avr', 'arm', 'simulator'], + help='Target platform for debug generation (affects variable limits)', +) +``` + +**2. Define per-platform variable limits in `ProjectController.py`:** + +```python +PLATFORM_LIMITS = { + 'avr': { + 'max_debug_vars': 2048, # ~8KB on AVR (4 bytes/entry) + 'expand_arrays': False, # Collapse arrays to single entries + 'include_fb_internals': False, # Only program-level variables + }, + 'arm': { + 'max_debug_vars': 8192, + 'expand_arrays': False, + 'include_fb_internals': True, + }, + 'linux': { + 'max_debug_vars': 65535, + 'expand_arrays': True, + 'include_fb_internals': True, + }, + 'simulator': { + 'max_debug_vars': 65535, + 'expand_arrays': True, + 'include_fb_internals': True, + }, +} +``` + +**3. Filter variables during `Generate_plc_debug_cvars()`:** + +In `ProjectController.py`, modify the method to accept a `target` parameter and apply filtering: +```python +def Generate_plc_debug_cvars(self, target='linux'): + limits = PLATFORM_LIMITS.get(target, PLATFORM_LIMITS['linux']) + + # Filter based on platform limits + filtered_vars = self._DbgVariablesList + if not limits['include_fb_internals']: + filtered_vars = [v for v in filtered_vars if not self._is_fb_internal(v)] + if not limits['expand_arrays']: + filtered_vars = self._collapse_array_entries(filtered_vars) + if len(filtered_vars) > limits['max_debug_vars']: + # Prioritize: program variables > global variables > FB members + filtered_vars = self._prioritize_variables(filtered_vars, limits['max_debug_vars']) + + # Generate the array from filtered list + variable_decl_array = [ + f"{{&({v['C_path']}), {v['type']}{type_suffix[v['vartype']]}}}" + for v in filtered_vars + ] + # ... +``` + +**4. Update the compiler module in the editor** (`compiler-module.ts`) to pass the target platform when invoking xml2st: + +```typescript +const executeCommand = this.#executeXml2st([ + '--generate-debug', generatedSTFilePath, generatedVARIABLESFilePath, + '--target', targetPlatform, // 'avr', 'arm', 'linux', 'simulator' +]) +``` + +**5. Emit a compiler warning when variables are truncated:** + +```python +if len(filtered_vars) < len(self._DbgVariablesList): + total = len(self._DbgVariablesList) + kept = len(filtered_vars) + print(f"Warning: Debug variable count reduced from {total} to {kept} " + f"for target '{target}'. Some variables will not be available " + f"for live debugging.", file=sys.stderr) +``` + +#### Benefits + +| Metric | Before | After | +|--------|--------|-------| +| AVR compilation | **Fails** (array too large) | Succeeds (capped at 2,048 entries) | +| Debug.c size (AVR) | 33,186 lines / 2.5 MB | ~2,200 lines / ~160 KB | +| Static array memory (AVR) | 131 KB (exceeds flash) | ~8 KB (fits in flash) | +| Implementation effort | — | **Low** (~1-2 days) | +| Protocol changes required | — | None | +| Runtime changes required | — | None | + +#### Limitations + +- Reduces debugger functionality on constrained targets (fewer variables debuggable). +- Doesn't solve the fundamental scalability issue — just pushes the ceiling. +- Requires the editor to communicate target platform to xml2st. + +--- + +### Strategy B: Array Collapse (Medium Effort, High Impact) + +**Goal:** Reduce the variable count by 50-60% by representing arrays as single entries with metadata instead of expanding every element. + +#### Implementation Details + +**1. New debug_vars entry format for arrays:** + +Modify the `debug.c.j2` template to support a new entry type: + +```c +typedef struct { + void *ptr; + __IEC_types_enum type; +} debug_var_entry_t; + +typedef struct { + void *base_ptr; // Pointer to first element + __IEC_types_enum type; // Element type + uint16_t element_count; // Number of elements + uint16_t element_size; // sizeof(element_type) for address calculation +} debug_array_entry_t; + +// Regular variables (indexed 0 to scalar_count-1) +static const debug_var_entry_t debug_vars[] = { + {&(RES0__INSTANCE0.MOTOR_SPEED), INT_ENUM}, + // ... only scalar variables +}; + +// Array variables (separate table) +static const debug_array_entry_t debug_arrays[] = { + {&(RES0__INSTANCE16.M_AIDATA.value.table[0]), INT_ENUM, 4000, sizeof(INT)}, + {&(RES0__INSTANCE16.O_AIDATA.value.table[0]), INT_ENUM, 4000, sizeof(INT)}, + // ... one entry per array, not per element +}; + +#define SCALAR_VAR_COUNT 14299 +#define ARRAY_COUNT 42 +``` + +**2. Modify `ProjectController.py` to detect and group array entries:** + +In `GetIECProgramsAndVariables()`, after building `_DbgVariablesList`, post-process to detect contiguous array sequences: + +```python +def _collapse_arrays(self, var_list): + """Group consecutive array element entries into single array descriptors.""" + arrays = {} + scalars = [] + + for v in var_list: + # Detect array element pattern: path.value.table[N] + match = re.match(r'^(.+\.value\.table)\[(\d+)\]$', v['C_path']) + if match: + base = match.group(1) + idx = int(match.group(2)) + if base not in arrays: + arrays[base] = { + 'base_path': f'{base}[0]', + 'type': v['type'], + 'vartype': v['vartype'], + 'max_idx': idx, + } + else: + arrays[base]['max_idx'] = max(arrays[base]['max_idx'], idx) + else: + scalars.append(v) + + return scalars, [ + {'base_path': a['base_path'], 'type': a['type'], + 'count': a['max_idx'] + 1, 'vartype': a['vartype']} + for a in arrays.values() + ] +``` + +**3. New runtime accessor functions:** + +Add to the generated `debug.c`: + +```c +#define ARRAY_COUNT 42 + +void *get_array_element_addr(size_t array_idx, size_t element_idx) +{ + if (array_idx >= ARRAY_COUNT) + return NULL; + + const debug_array_entry_t *arr = &debug_arrays[array_idx]; + if (element_idx >= arr->element_count) + return NULL; + + // Compute element address: base + element_idx * element_size + uint8_t *base = (uint8_t *)arr->base_ptr; + + // Handle IEC wrapper types (__IEC_INT_t has {value, flags}) + // element_size accounts for the wrapper struct stride + return (void *)(base + element_idx * arr->element_size); +} + +size_t get_array_element_count(size_t array_idx) +{ + if (array_idx >= ARRAY_COUNT) return 0; + return debug_arrays[array_idx].element_count; +} + +size_t get_array_element_size(size_t array_idx) +{ + if (array_idx >= ARRAY_COUNT) return 0; + return debug_arrays[array_idx].element_size; +} +``` + +**4. Extend the debug protocol with a new function code:** + +```c +#define MB_FC_DEBUG_GET_ARRAY 0x46 // New function code + +// Request: [0x46] [array_idx: u16] [element_start: u16] [element_end: u16] +// Response: [0x46] [status] [tick: u32] [data_len: u16] [data...] +``` + +Update `debug_handler.c`: +```c +static void debugGetArrayElements(uint8_t *frame, size_t *frame_len, + uint16_t arrayIdx, uint16_t startEl, uint16_t endEl) +{ + uint16_t arrayCount = ext_get_array_count(); + if (arrayIdx >= arrayCount) { + *frame_len = 2; + frame[0] = MB_FC_DEBUG_GET_ARRAY; + frame[1] = MB_DEBUG_ERROR_OUT_OF_BOUNDS; + return; + } + + size_t elSize = ext_get_array_element_size(arrayIdx); + uint16_t elCount = ext_get_array_element_count(arrayIdx); + + if (startEl >= elCount || endEl >= elCount || startEl > endEl) { + *frame_len = 2; + frame[0] = MB_FC_DEBUG_GET_ARRAY; + frame[1] = MB_DEBUG_ERROR_OUT_OF_BOUNDS; + return; + } + + size_t responseSize = 0; + uint8_t *responsePtr = &frame[10]; + + for (uint16_t el = startEl; el <= endEl; el++) { + if ((responseSize + 10) + elSize > MAX_DEBUG_FRAME) break; + + void *addr = ext_get_array_element_addr(arrayIdx, el); + memcpy(responsePtr, addr, elSize); + responsePtr += elSize; + responseSize += elSize; + } + + *frame_len = 10 + responseSize; + frame[0] = MB_FC_DEBUG_GET_ARRAY; + frame[1] = MB_DEBUG_SUCCESS; + frame[2] = (uint8_t)(arrayIdx >> 8); + frame[3] = (uint8_t)(arrayIdx & 0xFF); + frame[4] = (uint8_t)((tick__ >> 24) & 0xFF); + frame[5] = (uint8_t)((tick__ >> 16) & 0xFF); + frame[6] = (uint8_t)((tick__ >> 8) & 0xFF); + frame[7] = (uint8_t)(tick__ & 0xFF); + frame[8] = (uint8_t)(responseSize >> 8); + frame[9] = (uint8_t)(responseSize & 0xFF); +} +``` + +**5. Update editor-side index mapping:** + +In `debugger-session.ts`, `buildVariableIndexMap()` already handles arrays specially (lines 71-98). Update it to use the new array protocol: + +```typescript +// For array variables, store a reference to the array debug index +// instead of individual element indexes +if (v.type.definition === 'array' && v.type.data) { + const arrayDebugIndex = findArrayDebugIndex(instance.name, v.name, parsed.arrays) + if (arrayDebugIndex !== null) { + // Store with a special prefix to distinguish from scalar indexes + const compositeKey = `${pou.data.name}:${v.name}` + indexMap.set(compositeKey, ARRAY_INDEX_FLAG | arrayDebugIndex) + // Individual element access: compositeKey[i] resolves at poll time + } +} +``` + +**6. Update the Modbus/WebSocket client classes:** + +Add a `getArrayElements()` method alongside the existing `getVariablesList()`: + +```typescript +async getArrayElements(arrayIndex: number, startElement: number, endElement: number): Promise<{ + success: boolean + tick?: number + data?: Buffer + error?: string +}> { + const functionCode = ModbusFunctionCode.DEBUG_GET_ARRAY + const request = Buffer.alloc(7) + request.writeUInt8(functionCode, 0) + request.writeUInt16BE(arrayIndex, 1) + request.writeUInt16BE(startElement, 3) + request.writeUInt16BE(endElement, 5) + // ... same response handling pattern as getVariablesList +} +``` + +#### Benefits + +| Metric | Before | After | +|--------|--------|-------| +| debug_vars[] entries | 32,774 | ~14,299 scalars + 42 array descriptors | +| debug.c file size | 2.5 MB | ~1.1 MB | +| Static array memory (AVR) | 131 KB | ~57 KB (scalars) + ~336 bytes (arrays) | +| Static array memory (x86_64) | 524 KB | ~229 KB + ~672 bytes | +| Variable count overhead | 56% from arrays | 0% from arrays | +| Array element debugging | Still works (new protocol) | Still works (computed addresses) | +| Implementation effort | — | **Medium** (~1-2 weeks, touches all 4 repos) | + +#### Limitations + +- Requires a protocol extension (new function code 0x46), meaning editor + runtime must be updated together. +- Only addresses array expansion — FB member expansion is still O(members * instances). +- The scalar array is still static and could still be large for FB-heavy projects. + +--- + +### Strategy C: FB Internal Variable Filtering (Medium Effort, High Impact) + +**Goal:** Reduce variable count by excluding function block internal state that users don't directly debug. + +#### Implementation Details + +**1. Classify variables by debuggability:** + +In `ProjectController.py`, add classification logic during `GetIECProgramsAndVariables()`: + +```python +def _classify_variable(self, attrs, parts): + """Classify a variable's debug priority. + + Returns: + 'program_direct' - Variable declared directly in a PROGRAM POU + 'global' - Global variable (CONFIG0 level) + 'fb_io' - Function block input/output pin + 'fb_internal' - Function block internal variable (VAR, VAR_TEMP) + 'external_dup' - VAR_EXTERNAL duplicate of a global (skip entirely) + """ + c_path = attrs['C_path'] + vartype = attrs['vartype'] + + # Global variables at CONFIG level + if parts[0].startswith('CONFIG') and not parts[1].startswith('RES'): + return 'global' + + # Variables inside resource programs + if len(parts) > 2: + # Check nesting depth: INSTANCE.VAR = program direct + # INSTANCE.FB_VAR.MEMBER = FB member + sub_parts = parts[2].split('.') + if len(sub_parts) == 1: + # Direct program variable (no dots after instance) + return 'program_direct' + elif vartype in ('IN', 'OUT'): + return 'fb_io' + else: + return 'fb_internal' + + return 'program_direct' +``` + +**2. Apply filtering based on target and variable priority:** + +```python +VARIABLE_PRIORITY = { + 'program_direct': 0, # Highest priority — always included + 'global': 1, + 'fb_io': 2, + 'fb_internal': 3, # Lowest priority — dropped first + 'external_dup': -1, # Never included +} + +def _filter_by_priority(self, var_list, max_count): + """Keep highest-priority variables up to max_count.""" + classified = [(self._classify_variable(v), v) for v in var_list] + classified = [(c, v) for c, v in classified if c != 'external_dup'] + classified.sort(key=lambda x: VARIABLE_PRIORITY[x[0]]) + + if len(classified) <= max_count: + return [v for _, v in classified] + + # Truncate from lowest priority + return [v for _, v in classified[:max_count]] +``` + +**3. Generate a variable catalog file alongside debug.c:** + +For variables excluded from the debug array, generate a `debug_catalog.json` that the editor can use to show users which variables are available for debugging and which were excluded: + +```python +def _generate_catalog(self, all_vars, included_vars, output_path): + """Generate a JSON catalog of all variables and their debug status.""" + included_paths = {v['C_path'] for v in included_vars} + catalog = [] + for v in all_vars: + catalog.append({ + 'iec_path': v.get('IEC_path', ''), + 'c_path': v['C_path'], + 'type': v['type'], + 'debuggable': v['C_path'] in included_paths, + 'reason': None if v['C_path'] in included_paths + else 'excluded_by_platform_limit', + }) + + with open(output_path, 'w') as f: + json.dump(catalog, f, indent=2) +``` + +The editor can display a warning icon next to non-debuggable variables in the variables panel. + +**4. Update `Generate_plc_debug_cvars()` to use the classifier:** + +```python +def Generate_plc_debug_cvars(self, target='linux', include_fb_internals=True): + if not self._DbgVariablesList and not self._VariablesList: + self.GetIECProgramsAndVariables() + + filtered = self._DbgVariablesList + if not include_fb_internals: + filtered = [ + v for v in filtered + if self._classify_variable(v, v['C_path'].split('.')) != 'fb_internal' + ] + + # Apply platform max + max_vars = PLATFORM_LIMITS.get(target, {}).get('max_debug_vars', 65535) + if len(filtered) > max_vars: + filtered = self._filter_by_priority(filtered, max_vars) + + # ... rest of generation +``` + +#### Benefits + +| Metric | Before | After (no FB internals) | +|--------|--------|------------------------| +| debug_vars[] entries | 32,774 | ~6,000-8,000 (estimated) | +| debug.c file size | 2.5 MB | ~500 KB | +| Static array memory (AVR) | 131 KB | ~24-32 KB | +| Debuggable variables | All (including useless internals) | Program vars + globals + FB I/O | +| Implementation effort | — | **Medium** (~3-5 days, mainly xml2st) | + +#### Limitations + +- Users who need to debug FB internal state lose access to those variables. +- Classification heuristics may misclassify in edge cases. +- Could be combined with Strategy B (array collapse) for maximum reduction. + +--- + +### Strategy D: Chunked Static Arrays (Low Effort, Fixes Compilation) + +**Goal:** Fix the compiler error without changing the debug protocol by splitting the single large array into multiple smaller arrays. + +#### Implementation Details + +**1. Modify the `debug.c.j2` template to emit chunked arrays:** + +```c +#define CHUNK_SIZE 1024 +#define VAR_COUNT {{ debug.vars | length }} +#define NUM_CHUNKS {{ ((debug.vars | length) + 1023) // 1024 }} + +{% for chunk_idx in range(num_chunks) %} +static const struct { + void *ptr; + __IEC_types_enum type; +} debug_vars_{{ chunk_idx }}[] = { +{%- for v in debug.vars[chunk_idx * 1024 : (chunk_idx + 1) * 1024] %} + {{ v }}, +{%- endfor %} +}; +{% endfor %} + +// Dispatch table +static const void *debug_chunks[] = { +{%- for chunk_idx in range(num_chunks) %} + (const void *)debug_vars_{{ chunk_idx }}, +{%- endfor %} +}; +``` + +**2. Update accessor functions to use chunked lookup:** + +```c +typedef struct { + void *ptr; + __IEC_types_enum type; +} debug_var_entry_t; + +static inline const debug_var_entry_t *get_debug_entry(size_t idx) { + if (idx >= VAR_COUNT) return NULL; + size_t chunk = idx / CHUNK_SIZE; + size_t offset = idx % CHUNK_SIZE; + const debug_var_entry_t *chunk_base = (const debug_var_entry_t *)debug_chunks[chunk]; + return &chunk_base[offset]; +} + +size_t get_var_size(size_t idx) +{ + const debug_var_entry_t *entry = get_debug_entry(idx); + if (!entry) return 0; + + switch (entry->type) { + {%- for t in debug.types -%} + // ... same switch cases as before + {%- endfor %} + default: return 0; + } +} + +void *get_var_addr(size_t idx) +{ + const debug_var_entry_t *entry = get_debug_entry(idx); + if (!entry) return NULL; + + switch (entry->type) { + // ... same switch cases as before + } +} +``` + +**3. Modify `ProjectController.py` to pass chunk metadata to the template:** + +```python +def Generate_embedded_plc_debugger(self, st_file, target='linux'): + dvars, externs, enums = self.Generate_plc_debug_cvars(target=target) + + CHUNK_SIZE = 1024 + num_chunks = (len(dvars) + CHUNK_SIZE - 1) // CHUNK_SIZE + + template = Environment(loader=self.__loader).get_template("debug.c.j2") + debug_text = template.render( + debug={ + 'externs': externs, + 'vars': dvars, + 'enums': enums, + 'types': list(set(a.split('_', 1)[0] for a in enums)), + 'md5': MD5, + 'chunk_size': CHUNK_SIZE, + 'num_chunks': num_chunks, + } + ) +``` + +**4. For AVR, place chunks in PROGMEM:** + +```c +#ifdef ARDUINO +// Store debug data in program memory (flash) instead of SRAM +#include + +{% for chunk_idx in range(num_chunks) %} +static const debug_var_entry_t debug_vars_{{ chunk_idx }}[] PROGMEM = { + // ... +}; +{% endfor %} + +// Override accessor to read from PROGMEM +static inline debug_var_entry_t read_debug_entry(size_t idx) { + debug_var_entry_t entry; + const debug_var_entry_t *chunk_base = (const debug_var_entry_t *) + pgm_read_ptr(&debug_chunks[idx / CHUNK_SIZE]); + memcpy_P(&entry, &chunk_base[idx % CHUNK_SIZE], sizeof(entry)); + return entry; +} +#endif +``` + +#### Benefits + +| Metric | Before | After | +|--------|--------|-------| +| AVR compilation | **Fails** | Succeeds (chunks < section limit) | +| Total memory usage | Same | Same (but distributed across sections) | +| AVR SRAM usage | 131 KB (impossible) | 0 KB (PROGMEM — flash only) | +| Protocol changes | — | None | +| Runtime changes | — | None | +| Editor changes | — | None | +| Implementation effort | — | **Low** (~2-3 days, xml2st template only) | + +#### Limitations + +- Doesn't reduce total memory consumption — just distributes it. +- PROGMEM access is slower (requires `pgm_read_*` on each access). +- AVR flash is still only 256 KB — the PLC program + debug data + libraries may still not fit. +- The fundamental O(n) array growth problem remains. + +--- + +### Strategy E: Dynamic Registration (Long-Term, Most Scalable) + +**Goal:** Replace the compile-time static array with runtime-dynamic variable registration, enabling the system to scale to arbitrary project sizes limited only by available memory. + +#### Implementation Details + +**1. Replace static array with a registration API:** + +New header `debug_registry.h` in the runtime: +```c +#ifndef DEBUG_REGISTRY_H +#define DEBUG_REGISTRY_H + +#include +#include +#include "iec_types_all.h" + +typedef struct { + void *ptr; + __IEC_types_enum type; +} debug_var_entry_t; + +typedef struct { + void *base_ptr; + __IEC_types_enum element_type; + uint32_t element_count; + uint16_t element_stride; // sizeof(__IEC_TYPE_t) for the wrapper type +} debug_array_entry_t; + +// Initialize the registry with expected capacity (avoids realloc churn) +int debug_registry_init(uint32_t expected_scalars, uint32_t expected_arrays); + +// Register individual variables (called from generated init function) +int debug_register_scalar(uint32_t idx, void *ptr, __IEC_types_enum type); +int debug_register_array(uint32_t idx, void *base_ptr, __IEC_types_enum type, + uint32_t count, uint16_t stride); + +// Accessors (used by debug_handler.c) +uint32_t debug_get_scalar_count(void); +uint32_t debug_get_array_count(void); + +size_t debug_get_var_size(uint32_t idx); +void *debug_get_var_addr(uint32_t idx); +void debug_force_var(uint32_t idx, bool forced, void *val); + +size_t debug_get_array_element_size(uint32_t array_idx); +void *debug_get_array_element_addr(uint32_t array_idx, uint32_t element); +uint32_t debug_get_array_element_count(uint32_t array_idx); + +// Cleanup +void debug_registry_free(void); + +#endif +``` + +**2. Implementation for Linux/desktop targets:** + +```c +// debug_registry.c +#include "debug_registry.h" +#include +#include + +static debug_var_entry_t *scalar_vars = NULL; +static uint32_t scalar_count = 0; +static uint32_t scalar_capacity = 0; + +static debug_array_entry_t *array_vars = NULL; +static uint32_t array_count = 0; +static uint32_t array_capacity = 0; + +int debug_registry_init(uint32_t expected_scalars, uint32_t expected_arrays) { + scalar_capacity = expected_scalars; + scalar_vars = (debug_var_entry_t *)calloc(expected_scalars, sizeof(debug_var_entry_t)); + if (!scalar_vars) return -1; + + array_capacity = expected_arrays; + array_vars = (debug_array_entry_t *)calloc(expected_arrays, sizeof(debug_array_entry_t)); + if (!array_vars) { + free(scalar_vars); + return -1; + } + return 0; +} + +int debug_register_scalar(uint32_t idx, void *ptr, __IEC_types_enum type) { + if (idx >= scalar_capacity) return -1; + scalar_vars[idx].ptr = ptr; + scalar_vars[idx].type = type; + if (idx >= scalar_count) scalar_count = idx + 1; + return 0; +} + +int debug_register_array(uint32_t idx, void *base_ptr, __IEC_types_enum type, + uint32_t count, uint16_t stride) { + if (idx >= array_capacity) return -1; + array_vars[idx].base_ptr = base_ptr; + array_vars[idx].element_type = type; + array_vars[idx].element_count = count; + array_vars[idx].element_stride = stride; + if (idx >= array_count) array_count = idx + 1; + return 0; +} + +uint32_t debug_get_scalar_count(void) { return scalar_count; } +uint32_t debug_get_array_count(void) { return array_count; } + +void *debug_get_var_addr(uint32_t idx) { + if (idx >= scalar_count) return NULL; + void *ptr = scalar_vars[idx].ptr; + // Same type-switch logic as current get_var_addr, but reading from heap + // ... +} + +void debug_registry_free(void) { + free(scalar_vars); scalar_vars = NULL; scalar_count = 0; + free(array_vars); array_vars = NULL; array_count = 0; +} +``` + +**3. Implementation for embedded targets (static pool, no malloc):** + +```c +// debug_registry_embedded.c — for AVR/ARM targets without heap +#include "debug_registry.h" + +// Compile-time pool sized from generated #defines +#ifndef DEBUG_MAX_SCALARS +#define DEBUG_MAX_SCALARS 2048 +#endif +#ifndef DEBUG_MAX_ARRAYS +#define DEBUG_MAX_ARRAYS 64 +#endif + +static debug_var_entry_t scalar_pool[DEBUG_MAX_SCALARS]; +static uint32_t scalar_count = 0; + +static debug_array_entry_t array_pool[DEBUG_MAX_ARRAYS]; +static uint32_t array_count = 0; + +int debug_registry_init(uint32_t expected_scalars, uint32_t expected_arrays) { + // Validate against pool sizes + if (expected_scalars > DEBUG_MAX_SCALARS || expected_arrays > DEBUG_MAX_ARRAYS) + return -1; + scalar_count = 0; + array_count = 0; + return 0; +} + +int debug_register_scalar(uint32_t idx, void *ptr, __IEC_types_enum type) { + if (idx >= DEBUG_MAX_SCALARS) return -1; + scalar_pool[idx].ptr = ptr; + scalar_pool[idx].type = type; + if (idx >= scalar_count) scalar_count = idx + 1; + return 0; +} +// ... same pattern for arrays +``` + +**4. Generated `debug.c` becomes a registration function:** + +```c +// debug.c — generated by xml2st +#include "debug_registry.h" +#include "POUS.h" + +char plc_program_md5[] = "{{ debug.md5 }}"; + +{{ debug.externs | join('\n') }} + +#define EXPECTED_SCALARS {{ debug.scalar_count }} +#define EXPECTED_ARRAYS {{ debug.array_count }} + +void debug_init(void) +{ + debug_registry_init(EXPECTED_SCALARS, EXPECTED_ARRAYS); + + // Scalar registrations +{% for v in debug.scalars %} + debug_register_scalar({{ v.idx }}, &({{ v.c_path }}), {{ v.type_enum }}); +{%- endfor %} + + // Array registrations +{% for a in debug.arrays %} + debug_register_array({{ a.idx }}, &({{ a.base_path }}), + {{ a.type_enum }}, {{ a.count }}, sizeof(__IEC_{{ a.base_type }}_t)); +{%- endfor %} +} +``` + +**5. Upgrade the debug protocol to uint32_t:** + +Update `debug_handler.c` to use 4-byte variable indexes: + +```c +// New protocol v2 — detected via MD5 handshake response +// Variable indexes are now uint32_t (4 bytes) instead of uint16_t (2 bytes) + +static void debugInfoV2(uint8_t *frame, size_t *frame_len) +{ + uint32_t scalarCount = debug_get_scalar_count(); + uint32_t arrayCount = debug_get_array_count(); + *frame_len = 9; + frame[0] = MB_FC_DEBUG_INFO; + frame[1] = 0x02; // Protocol version 2 + frame[2] = (uint8_t)(scalarCount >> 24); + frame[3] = (uint8_t)(scalarCount >> 16); + frame[4] = (uint8_t)(scalarCount >> 8); + frame[5] = (uint8_t)(scalarCount & 0xFF); + frame[6] = (uint8_t)(arrayCount >> 24); + frame[7] = (uint8_t)(arrayCount >> 16); + frame[8] = (uint8_t)(arrayCount >> 8); + frame[9] = (uint8_t)(arrayCount & 0xFF); +} +``` + +The editor can detect the protocol version from the `DEBUG_INFO` response length (3 bytes = v1, 9+ bytes = v2) and adapt its request format accordingly. + +**6. Update the editor's debug parser:** + +Instead of parsing a giant `debug_vars[]` array from the C source, generate a separate `debug_manifest.json` that the editor reads directly: + +```json +{ + "version": 2, + "md5": "fd4e363aaafc4482ee60244912f42d4b", + "scalars": [ + {"idx": 0, "path": "RES0__INSTANCE0.MOTOR_SPEED", "type": "INT"}, + {"idx": 1, "path": "RES0__INSTANCE0.MOTOR_ON", "type": "BOOL"} + ], + "arrays": [ + {"idx": 0, "path": "RES0__INSTANCE16.M_AIDATA", "type": "INT", "count": 4000}, + {"idx": 1, "path": "RES0__INSTANCE16.O_AIDATA", "type": "INT", "count": 4000} + ] +} +``` + +This eliminates the expensive regex parsing of a multi-MB C file and replaces it with a fast JSON parse. + +#### Benefits + +| Metric | Before | After | +|--------|--------|-------| +| Variable count limit | 65,535 (uint16_t) | 4,294,967,295 (uint32_t) | +| Memory allocation | Static (data segment) | Dynamic (heap) or pooled | +| AVR compilation | Fails at ~30K vars | Works up to pool limit | +| Linux/desktop scalability | Limited by section size | Limited only by RAM | +| Debug file parsing | Regex on 2.5 MB C file | JSON parse of manifest | +| Array memory efficiency | O(elements) | O(1) per array | +| Protocol compatibility | N/A | Backward-compatible with version detection | +| Implementation effort | — | **High** (~3-4 weeks, all 4 repos) | + +#### Limitations + +- Most complex to implement — touches all four repositories. +- Requires coordinated release of editor + runtime + xml2st. +- Protocol versioning adds complexity to connection negotiation. +- Embedded pool sizes still require tuning per platform. + +--- + +### Strategy F: Lazy Debug Registration (Future, Maximum Scalability) + +**Goal:** Only register variables for debugging when the editor actually requests them, making the runtime's debug footprint proportional to what the user is actively monitoring, not the total project size. + +#### Implementation Details + +This is an extension of Strategy E that adds **on-demand registration**: + +**1. Generate a string-indexed lookup table instead of pre-registered entries:** + +```c +// debug.c — generated +typedef struct { + const char *iec_path; // "RES0.INSTANCE0.MOTOR_SPEED" + void *(*resolve)(void); // Function that returns &variable + __IEC_types_enum type; + uint8_t is_array; + uint32_t array_count; // 0 for scalars +} debug_var_descriptor_t; + +// This table is const/PROGMEM — only stores metadata, not runtime state +static const debug_var_descriptor_t var_descriptors[] = { + {"RES0__INSTANCE0.MOTOR_SPEED", resolve_var_0, INT_ENUM, 0, 0}, + {"RES0__INSTANCE16.M_AIDATA", resolve_array_0, INT_ENUM, 1, 4000}, + // ... much smaller than current — one entry per logical variable +}; + +// Resolver functions (can be generated or use offsetof) +static void *resolve_var_0(void) { return &(RES0__INSTANCE0.MOTOR_SPEED); } +static void *resolve_array_0(void) { return &(RES0__INSTANCE16.M_AIDATA.value.table[0]); } +``` + +**2. Add a name-based registration protocol:** + +```c +#define MB_FC_DEBUG_SUBSCRIBE 0x47 // Subscribe to a variable by name hash +#define MB_FC_DEBUG_UNSUBSCRIBE 0x48 // Unsubscribe + +// The editor sends: [0x47] [name_hash: u32] [name_len: u16] [name: bytes] +// Runtime resolves the name, adds to active monitoring set +// Returns: [0x47] [status] [assigned_slot: u16] +``` + +The runtime maintains a small **active set** (e.g., 256-512 slots) of variables that are currently being monitored. The editor subscribes/unsubscribes as the user navigates between POUs. + +**3. Editor-side subscription management:** + +```typescript +class DebugSubscriptionManager { + private activeSubscriptions = new Map() // compositeKey → slot + private maxSlots = 256 + + async subscribe(compositeKey: string, varPath: string): Promise { + if (this.activeSubscriptions.has(compositeKey)) { + return this.activeSubscriptions.get(compositeKey)! + } + + // If at capacity, unsubscribe least recently used + if (this.activeSubscriptions.size >= this.maxSlots) { + await this.evictLRU() + } + + const slot = await window.bridge.debuggerSubscribe(varPath) + this.activeSubscriptions.set(compositeKey, slot) + return slot + } + + async onPouChanged(visibleKeys: Set): Promise { + // Unsubscribe variables no longer visible + for (const [key, slot] of this.activeSubscriptions) { + if (!visibleKeys.has(key)) { + await window.bridge.debuggerUnsubscribe(slot) + this.activeSubscriptions.delete(key) + } + } + // Subscribe newly visible variables + // ... + } +} +``` + +#### Benefits + +| Metric | Before | After | +|--------|--------|-------| +| Runtime debug memory | O(total_variables) | O(monitored_variables) | +| Monitored variable limit | 65,535 | Unlimited (swap in/out) | +| Connection setup time | Parse 32K entries | Instant (subscribe on demand) | +| Network bandwidth | Poll all subscribed each tick | Poll only active slots | +| Project size impact on debug | Linear | Constant (for a given view) | +| Implementation effort | — | **Very high** (~6-8 weeks) | + +#### Limitations + +- Most complex strategy — fundamentally changes the debug architecture. +- Subscription/unsubscription adds latency when switching between POUs. +- Name resolution at runtime requires string storage in flash/memory. +- Overkill for most projects; only needed for truly massive systems. + +--- + +## Recommended Implementation Plan + +### Phase 1 — Immediate Fix (Week 1-2) + +Combine **Strategy A** (platform-aware limits) and **Strategy D** (chunked arrays): + +1. Split the `debug_vars[]` static array into 1024-entry chunks in the Jinja template. +2. Add PROGMEM support for AVR targets. +3. Add `--target` flag to xml2st to apply platform-specific variable limits. +4. Update the editor's compiler module to pass the target platform. + +**Result:** User's project compiles on all targets. No protocol changes needed. + +### Phase 2 — Structural Improvement (Week 3-6) + +Implement **Strategy B** (array collapse) and **Strategy C** (FB filtering): + +1. Add array detection and collapse in `ProjectController.py`. +2. Add FB internal variable classification and filtering. +3. Extend the debug protocol with `0x46 DEBUG_GET_ARRAY`. +4. Update the editor's debug parser and polling logic. +5. Generate `debug_catalog.json` for the editor to show debuggability status. + +**Result:** 50-70% reduction in debug variable count. Arrays are first-class debug citizens. + +### Phase 3 — Scalable Architecture (Week 7-12) + +Implement **Strategy E** (dynamic registration): + +1. Create `debug_registry.c` with heap (Linux) and pool (embedded) backends. +2. Upgrade the debug protocol to v2 with uint32_t indexes. +3. Generate `debug_manifest.json` instead of parsing debug.c. +4. Add protocol version negotiation to the editor. + +**Result:** System scales to arbitrary project sizes. Protocol supports >65K variables. + +### Phase 4 — Future (Optional) + +Implement **Strategy F** (lazy registration) only if needed for extreme-scale projects: + +1. Add name-based subscription protocol. +2. Implement subscription manager in the editor. +3. Add LRU eviction for constrained targets. + +**Result:** O(1) runtime debug overhead regardless of project size. + +--- + +## Files Affected Across Repositories + +### xml2st +| File | Changes | +|------|---------| +| `xml2st.py` | Add `--target` argument, pass to debug generator | +| `ProjectController.py` | Array collapse, FB filtering, platform limits, catalog generation | +| `templates/debug.c.j2` | Chunked arrays, PROGMEM, registration function template | +| `templates/debug_manifest.json.j2` | New — JSON manifest for editor | + +### matiec +| File | Changes | +|------|---------| +| `stage4/generate_c/generate_c_vardecl.cc` | (Phase 3) Optional: emit array metadata in VARIABLES.csv instead of expanding elements | + +### openplc-runtime +| File | Changes | +|------|---------| +| `core/src/plc_app/debug_handler.c` | Protocol v2, array element access, uint32_t indexes | +| `core/src/plc_app/debug_handler.h` | Updated function signatures | +| `core/src/plc_app/debug_registry.c` | New — dynamic variable registration | +| `core/src/plc_app/debug_registry.h` | New — registration API | + +### openplc-editor +| File | Changes | +|------|---------| +| `src/main/modules/compiler/compiler-module.ts` | Pass target platform to xml2st | +| `src/utils/debug-parser.ts` | Support JSON manifest parsing | +| `src/renderer/utils/debugger-session.ts` | Array index handling, protocol v2 | +| `src/main/modules/modbus/modbus-client.ts` | Array element request method | +| `src/main/modules/websocket/websocket-debug-client.ts` | Array element request method | +| `src/renderer/screens/workspace-screen.tsx` | Array polling in debug loop | diff --git a/docs/strucpp-migration/00-overview.md b/docs/strucpp-migration/00-overview.md new file mode 100644 index 000000000..ba6c6b1bb --- /dev/null +++ b/docs/strucpp-migration/00-overview.md @@ -0,0 +1,227 @@ +# STruC++ Migration: Overview + +## Problem Statement + +The OpenPLC Editor uses MatIEC (`iec2c`) to compile IEC 61131-3 Structured Text into C code, +and `xml2st` to generate debug infrastructure. This pipeline has two critical issues: + +1. **MatIEC is unmaintained**: The compiler is old, barely maintained, and has poor scalability. +2. **Debugger scalability**: The `debug.c` file generated by `xml2st` creates a flat `debug_vars[]` + array that expands every array element individually. A project with ~3,500 variables (many arrays) + can generate 30,000+ entries, exceeding memory limits on Arduino platforms and hitting the + `uint16_t` index ceiling (65,535). + +## Solution + +Replace `iec2c` (MatIEC) with **STruC++**, a modern IEC 61131-3 Structured Text to C++17 compiler +written in TypeScript. STruC++ is located at `~/Documents/Code/strucpp`. + +STruC++ solves both problems: +- It is actively developed with full CODESYS compatibility and OOP support +- Its `VarDescriptor` model does NOT expand arrays: one entry per array variable, not per element +- It is a TypeScript package that can be imported directly (`compile()`), no external binary needed +- Its `IECVar` wrapper provides built-in variable forcing for debugging + +## What Changes vs. What Stays + +### Unchanged + +| Component | Status | +|-----------|--------| +| `xml2st --generate-st` (XML to ST conversion) | Unchanged (separate effort on another branch) | +| XML generation from project JSON | Unchanged | +| `arduino-cli` compilation/upload | Unchanged (now compiles C++ instead of C) | +| HAL files (`resources/sources/hal/*.cpp`) | Unchanged (same buffer pointer interface) | +| Modbus slave communication | Unchanged (debug handler functions updated later) | +| Frontend project data handling | Unchanged | +| POU preprocessing (Python/C++ wrappers) | Unchanged | + +### Replaced + +| Old Component | New Component | +|---------------|---------------| +| `iec2c` binary (ST to C) | STruC++ `compile()` (ST to C++17) | +| `xml2st --generate-debug` (debug.c) | Deferred -- redesigned in Phase 4 | +| `xml2st --generate-gluevars` (glueVars.c) | Not needed -- sketch walks `locatedVars[]` dynamically | +| MatIEC lib/ headers | STruC++ runtime headers (header-only C++17) | +| `Baremetal.ino` (MatIEC C integration) | `Baremetal.ino` (STruC++ C++ integration) | +| Single `config_run__(tick)` | Per-program `run()` with GCD task scheduler | + +## Revised Pipeline + +``` + UNCHANGED REPLACED + +----------+ +------------------+ +project.json ----> | xml2st | --> prog.st| STruC++ compile()| --> generated.cpp +(via XML gen) |--generate| | | generated.hpp + | -st | +------------------+ + +----------+ | + v + arduino-cli / g++ + (now compiles C++17) +``` + +No glue code generator is needed. The Arduino runtime is **static C++ code** that navigates +STruC++ generated structures dynamically: it walks `locatedVars[]` to bind I/O, walks the +`Configuration` class to discover tasks and programs, and computes `common_ticktime__` from +task intervals -- all at runtime, same code for every project. + +## Phase Structure + +Implementation follows this order -- code generation first, then the runtime that consumes it. + +### Part A: Arduino Target (Primary Focus) + +| Phase | Title | Description | +|-------|-------|-------------| +| 1 | [STruC++ Compiler Integration](01-strucpp-compiler-integration.md) | Dependency infrastructure: version tracking, download, setup | +| 2 | [Editor Compiler Pipeline](02-editor-compiler-pipeline.md) | Wire `compile()` into compiler-module.ts, generate C++ from ST | +| 3 | [Arduino Runtime Adaptation](03-arduino-runtime-adaptation.md) | Static sketch that navigates STruC++ structures dynamically | +| 4 | [Debugger](04-debugger.md) | Deferred -- redesign when runtime is stable | + +### Part B: OpenPLC Runtime v4 (Secondary) + +| Phase | Title | Description | +|-------|-------|-------------| +| 5 | [Runtime .so Interface](05-runtime-v4-so-interface.md) | Runtime sources become C++; `.so` exports a single C-linkage entry (`strucpp_get_config()`) plus the debug-PDU shims; runtime walks `ConfigurationInstance` via virtual dispatch; tiny static shim (~10 lines) lives in the runtime repo, **not** the editor; flat-index plugin compat removed (OPC UA paused pending Phase 9) | +| 6 | [Thread-Per-Task Model](06-runtime-v4-thread-per-task.md) | One SCHED_FIFO thread per IEC task; priority from user program; CPU pinning **only** if user supplied a mask via Phase 8's `CPU_AFFINITY` extension; per-thread crash handlers; per-task heartbeats | +| 7 | [Housekeeping on the Fastest IEC Task](07-runtime-v4-plugin-and-io.md) | Anchor `journal_apply_and_clear()`, plugin `cycle_start` / `cycle_end`, `updateTime()`, and `tick__++` on the **fastest** IEC task's thread. No plugin worker threads. Single-task projects behave identically to the MatIEC era; multi-task projects piggyback housekeeping on the highest-cadence task. The runtime passes an `is_fastest_task` flag to each spawned task thread; the flagged thread runs housekeeping pre/post its body. | +| 8 | [STruC++ Codegen Runtime Extensions](08-strucpp-codegen-runtime-extensions.md) | STruC++ side: `IMAGE_TABLES_LOCK_GUARD()` codegen macro for granular locking around located/global variable access; `CPU_AFFINITY` parameter on `TASK` declarations; runtime accessor for per-task affinity; sharedness analysis to skip the lock guard on tasks that touch no shared state | +| 9 | [Plugin Migration to Hierarchical Debug API](09-plugin-hierarchical-debug-api.md) | Migrate OPC UA (and any other plugin that consumed the old flat-index `get_var_addr`/`get_var_count` API) onto the hierarchical `strucpp_debug_*` PDU surface, consuming the editor's `debug-map.json` for path↔(arr, elem) lookup | + +> **Revision history.** +> +> *First revision.* The original phase plan had Phase 5 ship a flat-index +> `debug_vars[]`-shaped compatibility layer that Phase 7 would later replace +> with hierarchical addressing. After Phase 4 (Arduino) shipped with +> hierarchical addressing from day one, the intermediate flat layer became +> dead weight, so Phase 7 was repurposed for plugin/I/O coordination. +> +> *Second revision.* During implementation review, four changes +> reshaped Phases 5–7 again and added Phases 8–9: +> +> 1. **Runtime → C++.** Originally Phase 5 shipped a fairly large +> `runtime_v4_entry.cpp` (~150 lines) into the editor's upload bundle to +> bridge the runtime's C code to STruC++'s C++ class hierarchy. Switching +> the runtime sources to C++ lets the runtime walk +> `ConfigurationInstance*` through plain virtual dispatch — the shim +> shrinks to ~10 lines and moves into the runtime repo where it belongs. +> 2. **Plugin worker threads, not "ride task 0".** Phase 7's "Option A: the +> highest-priority task drives the I/O cycle" was always a hack — it +> couples plugin tick rate to whatever IEC priority happens to be highest +> and makes task 0 a special case throughout the runtime. Replaced with +> per-plugin worker threads owning their own priority and cycle interval +> via plugin config. +> 3. **Granular locking via codegen.** A single `buffer_mutex` around every +> task body destroys parallelism on multi-core. Phase 8 adds an +> `IMAGE_TABLES_LOCK_GUARD()` macro that STruC++ emits only around +> located- and global-variable access; on Arduino it expands to a no-op +> so the same generated code runs unchanged. +> 4. **CPU affinity from the user program.** Phase 6's hardcoded +> round-robin pinning came out — affinity comes from a new +> `CPU_AFFINITY` parameter on `TASK` declarations (Phase 8). When unset, +> the runtime makes no `pthread_setaffinity_np` call and the kernel +> decides. +> +> *Third revision (current).* The plugin-worker-threads idea from +> revision 2 was unwound. It introduced a new abstraction (a worker +> thread per plugin) and a new schedule (per-plugin cycle interval) +> when neither was needed. The MatIEC-era runtime had a single PLC +> thread that drove all housekeeping; the *minimum* drift from that is +> "one thread per IEC task, with the fastest one playing the same role +> the single thread used to". Two changes vs revision 2: +> +> 1. **Plugin worker threads removed.** Plugins keep their existing +> `cycle_start` / `cycle_end` callbacks. The runtime calls them on +> the fastest IEC task's thread, exactly the way the single-thread +> runtime called them on the PLC thread. No new pthreads, no new +> config schema, no new tick rate. Single-task projects look +> identical to the MatIEC era end-to-end. +> 2. **Mutex consolidation.** `IMAGE_TABLES_LOCK_GUARD()` (Phase 8) now +> locks the **same mutex** the runtime already owns for the image +> tables (the existing `buffer_mutex`) — not a parallel one in +> strucpp's namespace. The .so receives a pointer to it via a tiny +> setter the runtime calls right after `dlopen`. Globals get a +> *separate* mutex (a single one for all globals as the first cut; +> per-resource splitting deferred until profiling justifies it). + +### Rationale for Phase Order + +**Phase 2 before Phase 3**: We wire the compilation pipeline first so that STruC++ generates +`generated.cpp` and `generated.hpp` from `program.st`. The arduino-cli compilation will fail +at this point (the Arduino sketch isn't ready), but we can validate that the C++ code generation +works correctly. This gives us concrete output to design the Arduino runtime against. + +**Phase 4 deferred**: The debugger is complex and benefits from being designed after the +runtime is working. By the time we reach Phase 4, we'll have a better understanding of what +the runtime actually needs and can design a cleaner debugger approach. + +## Dependency Graph + +``` +Phase 1 (STruC++ dependency infrastructure) + | + +---> Phase 2 (Editor compiler pipeline -- generates C++) + | | + | +---> Phase 3 (Arduino runtime -- compiles and runs C++) + | | + | +---> Phase 4 (Debugger -- hierarchical addressing) + | + +---> Phase 5 (Runtime → C++; hierarchical debug; flat-index API removed) + | + +---> Phase 6 (Thread-per-task) + | + +---> Phase 7 (Plugin worker threads) + | + +---> Phase 8 (STruC++ codegen extensions: + | IMAGE_TABLES_LOCK_GUARD, + | CPU_AFFINITY) + | + +---> Phase 9 (OPC UA + other plugins migrate + to hierarchical debug API) +``` + +## Key Architectural Decisions + +### 1. Full Replacement (No MatIEC Coexistence) + +This branch is a clean break from MatIEC. The existing iec2c pipeline is fully removed and +replaced by STruC++. There is no `"compiler_backend"` routing, no dual pipeline, no backward +compatibility with MatIEC-generated code. All boards compile through STruC++ exclusively. +MatIEC-specific code (`config_init__`, `config_run__`, `glueVars`, `debug.c`, etc.) is deleted. + +### 2. Static Arduino Runtime (No Glue Code Generator) + +The Arduino sketch is fully static C++ code. It navigates STruC++ runtime structures at +`setup()` time using the same generic algorithm for every project: +- `Configuration_Config0` (always this name -- hardcoded by OpenPLC) +- `ConfigurationInstance::get_resources()` → `ResourceInstance::tasks` → `TaskInstance` +- `locatedVars[]` array for I/O binding +- `ProgramBase::run()` for execution + +No TypeScript code generator produces per-project C++ glue code. + +### 3. IECVar and Forced Input Handling + +STruC++ wraps all variables in `IECVar` which has built-in forcing: +- `get()`: returns forced_value_ when forced, value_ otherwise +- `set(v)`: ignored when forced (prevents program from overwriting forced value) +- `force(v)`: sets both forced_value_ and value_ (so raw_ptr() readers see it too) +- `raw_ptr()`: returns &value_ for I/O driver binding + +### 4. C++17 Requirement + +All Arduino boards need `-std=gnu++17` added to CXX compilation flags. This is supported by: +- Arduino AVR: GCC 7.3+ (bundled with Arduino IDE 2.x) +- ESP32: GCC 8+ (ESP-IDF toolchain) +- STM32: ARM GCC 10+ (STM32duino) +- RP2040: ARM GCC 10+ (Arduino Mbed OS) + +### 5. Dependency Management + +STruC++ is managed through the same `binary-versions.json` + `scripts/download-binaries.ts` +mechanism used for xml2st and matiec. The STruC++ release produces an npm tarball (`.tgz`) +that is downloaded from GitHub Releases and installed via `npm install`. This provides both +the TypeScript compiler (in `node_modules`) and the C++ runtime headers (extracted to +`resources/strucpp/`). No local copies, no `file:` dependencies, no manual syncing. Version +changes are a one-line edit to `binary-versions.json`. See Phase 1 for full details. diff --git a/docs/strucpp-migration/01-strucpp-compiler-integration.md b/docs/strucpp-migration/01-strucpp-compiler-integration.md new file mode 100644 index 000000000..c248d8589 --- /dev/null +++ b/docs/strucpp-migration/01-strucpp-compiler-integration.md @@ -0,0 +1,192 @@ +# Phase 1: STruC++ Compiler Integration + +## Goal + +Set up the infrastructure to use STruC++ as a dependency in the OpenPLC Editor. This phase +focuses exclusively on the dependency management: version tracking, automated download from +GitHub Releases, and making the STruC++ `compile()` API and C++ runtime headers available +to the editor. + +The editor will call `compile()` directly from `compiler-module.ts` -- no wrapper module +is needed. The Arduino runtime navigates STruC++ generated structures dynamically (located +variables, configuration, tasks, programs) so no glue code generator is needed either. + +## Prerequisites + +- STruC++ repository at `github.com/Autonomy-Logic/STruCpp` with tagged releases +- STruC++ release workflow produces an npm tarball (`.tgz`) as a release artifact +- STruC++ exposes a programmatic API: `compile(source: string, options?): CompileResult` + +## Dependency Strategy + +STruC++ is unique compared to matiec and xml2st: it is both a **TypeScript library** (imported +via `compile()`) and a provider of **C++ runtime headers** (needed for Arduino compilation). +Both artifacts must be strictly version-coupled and managed through the same mechanism the +editor already uses for external tools. + +### Principles + +1. **No `file:` dependencies** -- fragile, breaks CI, requires local checkout +2. **No manually-copied runtime headers** -- they must travel with the compiler version +3. **Single version source of truth** -- `binary-versions.json` tracks the STruC++ version +4. **Same download mechanism** -- `scripts/download-binaries.ts` handles setup +5. **Works identically in local dev and CI/CD** + +### Release Artifact from STruC++ + +The STruC++ release workflow (`release.yml`) includes a `build-npm` job that runs `npm pack` +to produce a platform-independent `.tgz` tarball. This tarball contains everything: + +- `dist/` -- compiled JavaScript (the `compile()` API) +- `src/runtime/include/` -- C++ runtime headers (`iec_var.hpp`, `iec_types.hpp`, etc.) +- `libs/` -- standard function block libraries (`.stlib` files) +- `package.json` -- metadata including version + +The `.tgz` is uploaded as a release asset alongside the platform-specific binaries. + +### Version Tracking + +**File**: `binary-versions.json` + +```json +{ + "xml2st": { + "version": "v4.0.3", + "repository": "Autonomy-Logic/xml2st" + }, + "matiec": { + "version": "v4.0.11", + "repository": "Autonomy-Logic/matiec" + }, + "strucpp": { + "version": "v0.2.4", + "repository": "Autonomy-Logic/STruCpp" + } +} +``` + +Version bumps are a one-line change, auditable in git. + +### Download Script + +**File**: `scripts/download-binaries.ts` + +The existing download script is extended with `downloadStrucpp()` and `needsStrucpp()`. + +**Download flow:** +1. Download the `.tgz` from GitHub Releases +2. Run `npm install --save-exact` to install into `node_modules/strucpp/` + (makes `import { compile } from 'strucpp'` work) +3. Extract runtime headers to `resources/strucpp/runtime/include/` +4. Extract `.stlib` libraries to `resources/strucpp/libs/` +5. Write cache metadata to `resources/strucpp/.strucpp-metadata.json` + +**Cache invalidation:** +- Checks `node_modules/strucpp/package.json` version against `binary-versions.json` +- Checks `resources/strucpp/runtime/include/iec_types.hpp` exists +- Checks `.strucpp-metadata.json` version matches +- If any check fails, re-downloads (replacing all local files) +- `--force` flag bypasses all cache checks + +**Key difference from matiec/xml2st**: STruC++ is platform-independent (pure TypeScript + +header-only C++), so it downloads once regardless of platform/arch. + +### Git Ignore + +**File**: `.gitignore` + +```gitignore +resources/strucpp/ +``` + +The `node_modules/strucpp` entry is already covered by the blanket `node_modules/` ignore. + +### Directory Layout After Setup + +``` +openplc-editor/ +├── binary-versions.json # Tracks v0.2.4 +├── node_modules/strucpp/ # TypeScript compiler (npm install) +│ ├── dist/ # Compiled JS +│ ├── src/runtime/include/ # C++ headers (also in node_modules) +│ ├── libs/ # .stlib files (also in node_modules) +│ └── package.json # Version: 0.2.4 +├── resources/strucpp/ # Extracted for compiler module access +│ ├── .strucpp-metadata.json # Cache: {"strucpp": "v0.2.4"} +│ ├── runtime/include/ # C++ headers (copied to build dirs) +│ │ ├── iec_var.hpp +│ │ ├── iec_types.hpp +│ │ ├── iec_located.hpp +│ │ ├── iec_std_lib.hpp +│ │ └── ... (19 header files) +│ └── libs/ # .stlib archives +│ ├── iec-standard-fb.stlib +│ └── oscat-basic.stlib +└── resources/bin/{platform}/{arch}/ # Other binaries (unchanged) +``` + +### How the Compiler Module Uses STruC++ + +In later phases, `compiler-module.ts` will: + +1. **Import the compiler** -- `import { compile } from 'strucpp'` (standard Node.js import) +2. **Call compile() directly** -- pass the ST source string, get C++ code back. No wrapper needed. +3. **Copy runtime headers** -- from `resources/strucpp/runtime/include/` to the build directory +4. **Pass library paths** -- `resources/strucpp/libs/` to `compile()` via the `libraryPaths` option + +### Why No Compile Wrapper + +The STruC++ `compile()` API returns everything the editor needs directly: +- `cppCode` / `headerCode` -- the generated C++ files +- `projectModel` -- task intervals, program instances (accessible from generated code) +- `errors` / `warnings` -- diagnostics + +The Arduino runtime navigates STruC++ structures dynamically at C++ level: +- `locatedVars[]` array for I/O binding (just a for loop) +- `ConfigurationInstance` → `ResourceInstance` → `TaskInstance` for task scheduling +- `ProgramBase::run()` for executing each program +- `common_ticktime__` computed from task intervals at runtime + +No TypeScript glue code generator or metadata extraction wrapper is needed. + +### Version Upgrade Workflow + +To upgrade STruC++ to a new version: + +1. Update `binary-versions.json`: change `"version": "v0.3.0"` +2. Run `npm run setup:binaries` (or `npm run dev` which triggers it via prestart) +3. The script downloads the new `.tgz`, updates `node_modules/strucpp`, and refreshes + `resources/strucpp/` with the matching runtime headers +4. Commit `binary-versions.json` (one-line change) +5. CI picks it up automatically + +### CI/CD Integration + +The CI workflow already calls `npm ci` (which triggers `postinstall` -> `download-binaries.ts`). +The download script automatically handles strucpp alongside xml2st and matiec. No CI workflow +changes needed beyond the existing cache invalidation (keyed on `binary-versions.json` hash). + +## Files Created/Modified + +### In openplc-editor + +| File | Action | +|------|--------| +| `binary-versions.json` | Add strucpp entry with version and repository | +| `scripts/download-binaries.ts` | Add `downloadStrucpp()` and `needsStrucpp()` | +| `.gitignore` | Add `resources/strucpp/` | + +### In STruCpp (separate repository) + +| File | Action | +|------|--------| +| `.github/workflows/release.yml` | Add `build-npm` job to produce `.tgz` artifact | + +## Testing + +1. Run `npm run setup:binaries` -- verify strucpp downloads and installs +2. Verify `node_modules/strucpp/package.json` has the correct version +3. Verify `resources/strucpp/runtime/include/iec_types.hpp` exists +4. Verify `resources/strucpp/libs/iec-standard-fb.stlib` exists +5. Change version in `binary-versions.json`, re-run -- verify it re-downloads +6. Run with `--force` -- verify it re-downloads even when cached diff --git a/docs/strucpp-migration/02-editor-compiler-pipeline.md b/docs/strucpp-migration/02-editor-compiler-pipeline.md new file mode 100644 index 000000000..94ce3eebf --- /dev/null +++ b/docs/strucpp-migration/02-editor-compiler-pipeline.md @@ -0,0 +1,207 @@ +# Phase 2: Editor Compiler Pipeline + +## Goal + +Replace the iec2c (MatIEC) compilation step in `compiler-module.ts` with STruC++ `compile()`. +The editor reads `program.st`, compiles it to C++, and writes `generated.cpp` + `generated.hpp` +to the build directory. The existing MatIEC pipeline is removed entirely -- no coexistence, +no routing, no backward compatibility. + +At this stage, the `arduino-cli` compilation step will fail because the Arduino runtime +(sketch, adapted `openplc.h`) is not yet ready for STruC++ output. That's expected -- the +goal is to verify C++ code generation. Phase 3 addresses the runtime. + +## Prerequisites + +- Phase 1 complete (STruC++ installed in `node_modules`, runtime headers at `resources/strucpp/`) + +## Primary File + +**`src/backend/editor/compiler/compiler-module.ts`** (~2,348 lines) + +The existing MatIEC pipeline steps (iec2c invocation, xml2st debug/glue generation) are +replaced by STruC++ calls. Dead MatIEC code is removed. + +## Step 2.1: Remove MatIEC Pipeline + +Delete or replace the following methods/steps in `compiler-module.ts`: +- `handleTranspileSTtoC()` (iec2c binary invocation) -- replaced by `handleCompileSTtoCpp()` +- `handleGenerateDebugFiles()` (xml2st --generate-debug) -- removed (debugger is Phase 4) +- `handleGenerateGlueVars()` (xml2st --generate-gluevars) -- removed (sketch handles I/O binding) +- `handlePatchGeneratedFiles()` (renames .c to .inc for unity build) -- removed (not needed for C++) +- MD5 extraction from program.st comments -- replaced by direct hash of program.st content +- References to `iec2c` binary path resolution -- removed +- MatIEC lib/ directory copying -- replaced by STruC++ runtime header copying + +## Step 2.2: New STruC++ Compilation Pipeline + +The `compileProgram()` method is refactored to use STruC++ directly: + +```typescript +// The pipeline steps: +try { + // === STEP 1: Create directories (unchanged) === + this.createBasicDirectories(projectPath, boardTarget) + + // === STEP 2: Generate XML from JSON (unchanged) === + await this.handleGenerateXMLfromJSON(projectData, compilationPath) + + // === STEP 3: xml2st --generate-st (unchanged) === + await this.handleTranspileXMLtoST(compilationPath) + // Result: program.st in compilationPath + + // === STEP 4: Copy STruC++ runtime headers to build dir === + this.copyStrucppRuntimeHeaders(compilationPath) + + // === STEP 5: Compile ST to C++ with STruC++ (replaces iec2c) === + this.handleCompileSTtoCpp(compilationPath) + + // === STEP 6: Copy Arduino sketch + static files === + this.copyStrucppSketchFiles(compilationPath) + + // === STEP 7: Generate C++ blocks header/code (unchanged) === + await this.handleGenerateCBlocksHeader(projectData, compilationPath) + await this.handleGenerateCBlocksCode(projectData, compilationPath) + + // === STEP 8: Copy HAL file (unchanged) === + await this.handleGenerateArduinoCppFile(boardTarget, compilationPath) + + // === STEP 9: Generate defines.h (unchanged in structure) === + await this.handleGenerateDefinitionsFile(projectData, boardTarget, compilationPath) + + // === STEP 10: Arduino compilation (with -std=gnu++17) === + await this.handleCoreInstallation(boardTarget) + await this.handleLibraryInstallation(boardTarget, compilationPath) + await this.handleCompileArduinoProgram(boardTarget, compilationPath, compileOnly) + + // === STEP 11: Upload (unchanged) === + if (!compileOnly) { + await this.handleUploadProgram(boardTarget, compilationPath) + } +} catch (error) { + // error handling... +} +``` + +## Step 2.3: New Private Methods + +### `copyStrucppRuntimeHeaders()` + +Copies the STruC++ C++ runtime headers to the build directory: + +```typescript +private copyStrucppRuntimeHeaders(compilationPath: string): void { + const runtimeDir = path.join(this.resourcesPath, 'strucpp', 'runtime', 'include') + if (!fs.existsSync(runtimeDir)) { + throw new Error('STruC++ runtime headers not found. Run "npm run setup:binaries".') + } + for (const file of fs.readdirSync(runtimeDir)) { + fs.copyFileSync(path.join(runtimeDir, file), path.join(compilationPath, file)) + } +} +``` + +### `copyStrucppSketchFiles()` + +Copies the static Arduino sketch and OpenPLC support files to the build directory: + +```typescript +private copyStrucppSketchFiles(compilationPath: string): void { + const sketchDir = path.join(this.resourcesPath, 'sources', 'Baremetal') + for (const file of fs.readdirSync(sketchDir)) { + fs.copyFileSync(path.join(sketchDir, file), path.join(compilationPath, file)) + } +} +``` + +### `handleCompileSTtoCpp()` + +Reads `program.st` and calls STruC++ `compile()` directly: + +```typescript +import { compile } from 'strucpp' + +private handleCompileSTtoCpp(compilationPath: string): void { + const stSource = fs.readFileSync(path.join(compilationPath, 'program.st'), 'utf-8') + + const libsDir = path.join(this.resourcesPath, 'strucpp', 'libs') + const result = compile(stSource, { + headerFileName: 'generated.hpp', + debug: true, + lineMapping: true, + libraryPaths: fs.existsSync(libsDir) ? [libsDir] : [], + }) + + if (!result.success) { + const msgs = result.errors.map(e => `Line ${e.line}: ${e.message}`).join('\n') + throw new Error(`STruC++ compilation failed:\n${msgs}`) + } + + fs.writeFileSync(path.join(compilationPath, 'generated.cpp'), result.cppCode) + fs.writeFileSync(path.join(compilationPath, 'generated.hpp'), result.headerCode) +} +``` + +### C++17 Compilation Flag + +All boards now require `-std=gnu++17`. This is added to `cxx_flags` in `hals.json` for +every board entry. + +## Step 2.4: hals.json Changes + +**File to modify**: `resources/sources/boards/hals.json` + +- Add `"cxx_flags": ["-std=gnu++17", "-MMD", "-c"]` to all board entries +- Remove any MatIEC-specific fields if present + +No `"compiler_backend"` field is needed -- all boards use STruC++ exclusively. + +## Step 2.5: Clean Up MatIEC References + +Remove or update these across the codebase: +- Binary path resolution for `iec2c` in `compiler-module.ts` +- `matiec` entry from `binary-versions.json` (no longer downloaded) +- MatIEC download logic from `scripts/download-binaries.ts` +- `resources/sources/MatIEC/` directory references +- Any `#executeIec2cBinaryPath` or similar methods +- References to `POUS.c`, `Res0.c`, `Config0.c`, `LOCATED_VARIABLES.h`, `glueVars.c`, `debug.c` + +Note: `matiec` and `iec2c` references in the `binary-versions.json` and download script +should be removed since they are no longer used. The xml2st binary is still needed for +XML-to-ST conversion. + +## Step 2.6: Build Directory Structure + +``` +build/{boardTarget}/src/ + plc.xml, program.st + iec_var.hpp, iec_types.hpp, iec_located.hpp, iec_std_lib.hpp, ... + <- Copied from resources/strucpp/runtime/include/ + generated.hpp <- STruC++ compile() output + generated.cpp <- STruC++ compile() output + c_blocks.h, c_blocks_code.cpp + arduino.cpp, defines.h + openplc.h <- Buffer declarations (adapted for STruC++ in Phase 3) + Baremetal.ino <- Static sketch (from Phase 3) +``` + +## Testing Strategy + +1. **Code generation**: Compile a simple ST project through the pipeline + - Verify `generated.cpp` and `generated.hpp` are produced in the build directory + - Verify the generated code contains expected classes (`Configuration_Config0`, programs) + - The `arduino-cli` step is expected to fail until Phase 3 provides the sketch + +2. **Error handling**: Invalid ST code → STruC++ errors propagated to the UI console + +3. **No MatIEC remnants**: Verify no references to iec2c, POUS.c, glueVars.c remain in the + compilation path + +## Files Created/Modified + +| File | Action | +|------|--------| +| `src/backend/editor/compiler/compiler-module.ts` | Modified -- replace MatIEC pipeline with STruC++ | +| `resources/sources/boards/hals.json` | Modified -- add `cxx_flags` to all boards | +| `binary-versions.json` | Modified -- remove matiec entry | +| `scripts/download-binaries.ts` | Modified -- remove matiec download logic | diff --git a/docs/strucpp-migration/03-arduino-runtime-adaptation.md b/docs/strucpp-migration/03-arduino-runtime-adaptation.md new file mode 100644 index 000000000..0d1bb8640 --- /dev/null +++ b/docs/strucpp-migration/03-arduino-runtime-adaptation.md @@ -0,0 +1,316 @@ +# Phase 3: Arduino Runtime Adaptation + +## Goal + +Create a static Arduino sketch that works with the STruC++ generated C++ files produced by +Phase 2. The sketch navigates STruC++ runtime structures dynamically -- it walks `locatedVars[]` +for I/O binding, walks the `Configuration` class for task discovery and scheduling, and computes +`common_ticktime__` from task intervals. The same sketch code works for every project. + +After this phase, the full pipeline works end-to-end: `program.st` → `compile()` → +`generated.cpp` + `generated.hpp` → `arduino-cli` → firmware binary. + +## Prerequisites + +- Phase 1 complete (STruC++ dependency infrastructure) +- Phase 2 complete (compiler pipeline generates `generated.cpp` + `generated.hpp`) + +## Key STruC++ Runtime Types + +The Arduino sketch uses these types from `iec_std_lib.hpp` (all in `namespace strucpp`): + +**`ProgramBase`** -- base class for all program instances: +```cpp +struct ProgramBase { + virtual void run() = 0; +}; +``` + +**`TaskInstance`** -- describes a task's scheduling and programs: +```cpp +struct TaskInstance { + const char* name; + int64_t interval_ns; // Execution interval in nanoseconds + int32_t priority; // Higher = more important + ProgramBase** programs; // Array of program instances + size_t program_count; +}; +``` + +**`ResourceInstance`** -- describes a resource and its tasks: +```cpp +struct ResourceInstance { + const char* name; + const char* processor; + TaskInstance* tasks; + size_t task_count; +}; +``` + +**`ConfigurationInstance`** -- base class for configuration (generated code inherits from this): +```cpp +struct ConfigurationInstance { + virtual const char* get_name() const = 0; + virtual ResourceInstance* get_resources() = 0; + virtual size_t get_resource_count() const = 0; +}; +``` + +**`LocatedVar`** (from `iec_located.hpp`) -- describes a located variable's I/O binding: +```cpp +struct LocatedVar { + LocatedArea area; // Input, Output, or Memory + LocatedSize size; // Bit, Byte, Word, DWord, or LWord + uint16_t byte_index; + uint8_t bit_index; + uint8_t _reserved[3]; + void* pointer; // Points to IECVar::value_ via raw_ptr() +}; +``` + +The generated code always names the configuration class `Configuration_Config0` (OpenPLC +always uses `Config0` as the configuration name -- this is not user-configurable). + +## Step 3.1: Create New Arduino Sketch + +**New file**: `resources/sources/Baremetal/Baremetal.ino` + +This is a **static** sketch -- the same code for every project. It dynamically discovers +the project structure from STruC++ runtime types at `setup()` time. + +### Sketch Architecture + +``` +setup(): + 1. Configuration_Config0 constructed (static global) + 2. Walk locatedVars[] → bind to openplc.h buffer pointers + 3. Walk config.get_resources() → discover tasks, programs, intervals + 4. Compute GCD of all task intervals → common_ticktime__ + 5. Compute per-task divisors for round-robin scheduling + 6. Init hardware (HAL) + Modbus (unchanged from current) + +loop(): + 1. Wait for scan cycle timer + 2. updateInputBuffers() (HAL -- unchanged) + 3. For each task: if tick % divisor == 0, call program->run() + 4. updateOutputBuffers() (HAL -- unchanged) + 5. updateTime() + 6. modbusTask() if time permits (unchanged) +``` + +### Key Functions in the Sketch + +#### I/O Binding (replaces `glueVars()`) + +```cpp +void bindLocatedVars() { + using namespace strucpp; + for (uint32_t i = 0; i < locatedVarsCount; ++i) { + LocatedVar& lv = locatedVars[i]; + if (!lv.pointer) continue; + + switch (lv.area) { + case LocatedArea::Input: + switch (lv.size) { + case LocatedSize::Bit: + bool_input[lv.byte_index][lv.bit_index] = (IEC_BOOL*)lv.pointer; + break; + case LocatedSize::Word: + int_input[lv.byte_index] = (IEC_UINT*)lv.pointer; + break; + case LocatedSize::DWord: + dint_input[lv.byte_index] = (IEC_UDINT*)lv.pointer; + break; + case LocatedSize::LWord: + lint_input[lv.byte_index] = (IEC_ULINT*)lv.pointer; + break; + default: break; + } + break; + case LocatedArea::Output: + // symmetric to Input with bool_output, int_output, etc. + break; + case LocatedArea::Memory: + // int_memory, dint_memory, lint_memory + break; + } + } +} +``` + +#### Task Discovery and GCD Computation + +```cpp +// Storage for discovered task scheduling info +static strucpp::ProgramBase** all_programs = nullptr; +static uint32_t* task_divisors = nullptr; +static size_t total_programs = 0; +unsigned long long common_ticktime__ = 20000000ULL; // default 20ms + +uint64_t gcd(uint64_t a, uint64_t b) { + while (b) { uint64_t t = b; b = a % b; a = t; } + return a; +} + +void discoverTasks(strucpp::ConfigurationInstance& config) { + // First pass: count total programs and compute GCD + uint64_t gcd_ns = 0; + size_t prog_count = 0; + + auto* resources = config.get_resources(); + for (size_t r = 0; r < config.get_resource_count(); ++r) { + for (size_t t = 0; t < resources[r].task_count; ++t) { + auto& task = resources[r].tasks[t]; + prog_count += task.program_count; + uint64_t interval = task.interval_ns > 0 ? task.interval_ns : 20000000ULL; + gcd_ns = (gcd_ns == 0) ? interval : gcd(gcd_ns, interval); + } + } + + if (gcd_ns == 0) gcd_ns = 20000000ULL; + common_ticktime__ = gcd_ns; + + // Second pass: build flat program array with divisors + all_programs = new strucpp::ProgramBase*[prog_count]; + task_divisors = new uint32_t[prog_count]; + total_programs = prog_count; + + size_t idx = 0; + for (size_t r = 0; r < config.get_resource_count(); ++r) { + for (size_t t = 0; t < resources[r].task_count; ++t) { + auto& task = resources[r].tasks[t]; + uint64_t interval = task.interval_ns > 0 ? task.interval_ns : gcd_ns; + uint32_t divisor = (uint32_t)(interval / gcd_ns); + for (size_t p = 0; p < task.program_count; ++p) { + all_programs[idx] = task.programs[p]; + task_divisors[idx] = divisor; + idx++; + } + } + } +} +``` + +#### PLC Cycle Execution + +```cpp +void plcCycleTask() { + updateInputBuffers(); + // Run each program according to its task divisor + for (size_t i = 0; i < total_programs; ++i) { + if (task_divisors[i] == 0 || (__tick % task_divisors[i]) == 0) { + all_programs[i]->run(); + } + } + __tick++; + updateOutputBuffers(); + updateTime(); +} +``` + +### Key Differences from the MatIEC-era Baremetal.ino + +| Aspect | Old (MatIEC Baremetal.ino) | New (STruC++ Baremetal.ino) | +|--------|------------------------|--------------------------| +| Includes | `extern "C" { #include "openplc.h" }` | `#include "generated.hpp"` | +| Init | `config_init__()` + `glueVars()` | Static `Configuration_Config0` + `bindLocatedVars()` + `discoverTasks()` | +| PLC run | Single `config_run__(__tick++)` | Per-program `run()` with divisor check | +| Task scheduling | All tasks at same rate | GCD-based round-robin per task | +| Time | `common_ticktime__` from generated code | `common_ticktime__` computed at runtime | +| Modbus | Unchanged | Unchanged | +| HAL | Unchanged | Unchanged | + +## Step 3.2: Clean Up openplc.h + +The current `openplc.h` declares MatIEC-specific functions (`config_init__`, `config_run__`, +`glueVars`, `updateTime`, `common_ticktime__`). These are all removed since the sketch handles +everything directly through STruC++ runtime types. + +What remains in `openplc.h`: +- IEC type definitions (`IEC_BOOL`, `IEC_INT`, etc.) +- Buffer pointer declarations (`bool_input`, `int_output`, etc.) +- Buffer size macros (`MAX_DIGITAL_INPUT`, etc.) +- HAL function declarations (`hardwareInit`, `updateInputBuffers`, `updateOutputBuffers`) + +## Design Notes + +### Why the Sketch is Fully Static + +Every project produces the same C++ structures (`ConfigurationInstance`, `TaskInstance`, +`ProgramBase`, `LocatedVar`). The sketch navigates these structures with generic loops. +Nothing is project-specific except: +- The Configuration class name: always `Configuration_Config0` (hardcoded by OpenPLC) +- The `generated.hpp`/`generated.cpp` files: included, not generated by the sketch + +### Why Keep openplc.h Buffer Arrays + +The HAL files (`uno_leonardo_nano_micro_zero.cpp`, `esp32.cpp`, `mega_due.cpp`, etc.) use +`openplc.h` buffer pointer arrays: `bool_input[byte][bit]`, `int_input[index]`, etc. + +Rewriting all HAL files for STruC++ types would be a massive effort with no benefit. The +sketch's `bindLocatedVars()` populates these same buffer pointers from STruC++ `LocatedVar` +descriptors. The HAL files see no difference. + +### Memory Layout: IECVar + +Each variable is wrapped in `IECVar`: +`IECVar { int16_t value_; bool forced_; int16_t forced_value_; }` = 5 bytes. + +This is comparable to the old MatIEC `__IEC_INT_p` (5 bytes). No significant memory overhead. + +### Dynamic Memory in discoverTasks() + +The `discoverTasks()` function uses `new` to allocate the program pointer and divisor arrays. +This happens once at `setup()` time and the arrays live for the lifetime of the program. On +Arduino, this is acceptable since: +- It happens once (not in the scan loop) +- The total size is small (a few pointers per task) +- The memory is never freed (matches Arduino's typical pattern) + +For boards with very tight memory (ATmega328P), the total overhead is ~8 bytes per program +instance (pointer + divisor). + +## Step 3.3: Add `-std=gnu++17` to hals.json + +**File to modify**: `resources/sources/boards/hals.json` + +Add `"cxx_flags": ["-std=gnu++17", "-MMD", "-c"]` to all board entries. This is required +for arduino-cli to compile the STruC++ C++17 output. + +(Deferred from Phase 2 since it's only needed once the sketch exists and arduino-cli +actually compiles the STruC++ output.) + +## Testing Strategy + +1. **End-to-end compile**: Simple ST project through the full pipeline + - Phase 2 generates `generated.cpp` and `generated.hpp` + - This phase's sketch + adapted `openplc.h` make `arduino-cli` succeed + - Verify firmware binary is produced + +2. **Simulator test**: Run on the ATmega2560 simulator + - Verify scan cycle runs + - Verify located variables are bound to I/O buffers + +3. **Multi-task test**: Two tasks at T#20ms and T#40ms + - Verify GCD computation: `common_ticktime__ = 20000000` + - Verify divisors: `[1, 2]` + - Verify task1 runs every cycle, task2 every other cycle + +4. **HAL compatibility test**: Compile with each major HAL file + - Verify no compilation errors with STruC++ C++17 code + +5. **End-to-end code generation test**: Verify the full pipeline from `program.st` through + STruC++ `compile()` to `generated.cpp`/`generated.hpp` in the build directory, followed + by a successful `arduino-cli` compilation producing a firmware binary. + (Deferred from Phase 2 -- code generation was validated via unit tests, but the full + arduino-cli round-trip requires the sketch and adapted openplc.h from this phase.) + +## Files Created/Modified + +| File | Action | +|------|--------| +| `resources/sources/Baremetal/Baremetal.ino` | **New** -- static Arduino sketch | +| `resources/sources/arduino/openplc.h` | Modified -- remove MatIEC-specific declarations | +| `resources/sources/boards/hals.json` | Modified -- add `-std=gnu++17` to `cxx_flags` | + +Note: Runtime headers come from `resources/strucpp/runtime/include/` (downloaded in Phase 1). diff --git a/docs/strucpp-migration/04-debugger.md b/docs/strucpp-migration/04-debugger.md index 40035b44a..9dbeb7814 100644 --- a/docs/strucpp-migration/04-debugger.md +++ b/docs/strucpp-migration/04-debugger.md @@ -32,20 +32,26 @@ that element count. Moving metadata to Flash is necessary but not sufficient: th 1. **Every leaf is expanded.** No runtime walking of composite variables — each array element and struct/FB field gets its own table entry. -2. **Multiple debug arrays.** The compiler emits the table as a set of arrays, each capped +2. **Multiple debug arrays.** STruC++ emits the table as a set of arrays, each capped at 8,000 entries (safe margin under AVR's 32,767-byte object limit, assuming 4 B/entry). On Linux the same split is used for consistency. 3. **Compact per-entry format.** `struct Entry { void* ptr; uint8_t type_tag; uint8_t _pad; }` = 4 bytes. Entry table lives in Flash (`PROGMEM` on AVR, `.rodata` on Linux). Zero SRAM cost. -4. **Agnostic runtime dispatcher.** Part of the STruC++ runtime headers — not per-project - generated code. A `TypeOps` table indexed by `type_tag` holds function pointers to - `force_impl`, `unforce_impl`, `read_impl` instantiated for each IEC elementary - type. Covers all leaves because STruC++ wraps every leaf as `IECVar` where T is an - elementary type. -5. **Protocol addressing: `(array_idx: u8, elem_idx: u16)`.** 256 arrays × 65K entries = +4. **All C++ artifacts owned by STruC++.** Both the shared runtime headers (dispatch + table, templated helpers) **and** the per-project generated code (`generated_debug.cpp` + + `debug-map.json`) are emitted by STruC++. The editor is a pure consumer: it writes + the files STruC++ returns from `compile()` to disk and reads `debug-map.json` for its + own name→address lookups. This keeps layout-sensitive code colocated with the + generator that produced it, so a STruC++ version bump can't desync runtime headers + from compiler output. +5. **Agnostic runtime dispatcher.** A `TypeOps` table indexed by `type_tag` holds + function pointers to `force_impl`, `unforce_impl`, `read_impl` instantiated + for each IEC elementary type. Covers all leaves because STruC++ wraps every leaf as + `IECVar` where T is an elementary type. No per-project dispatch code. +6. **Protocol addressing: `(array_idx: u8, elem_idx: u16)`.** 256 arrays × 65K entries = 16M addressable leaves. More than enough for any realistic project. -6. **Two-stage rollout:** polling-based first (Modbus FCs 0x41–0x45 with the new PDU +7. **Two-stage rollout:** polling-based first (Modbus FCs 0x41–0x45 with the new PDU layout), subscription/stream later (0x46–0x48). Subscription is orthogonal to addressing and can ship as a follow-up without breaking the base protocol. @@ -53,7 +59,29 @@ that element count. Moving metadata to Flash is necessary but not sufficient: th ## What gets generated vs. what ships in the runtime -### Per-project (emitted by `strucpp-compiler.ts`) +STruC++ owns every C++ artifact and the editor-side manifest. The editor's only job is +to persist them to disk and consume the manifest for name lookups. + +`compile()` is extended to return two additional fields alongside `cppCode` / +`headerCode`: + +```ts +interface CompileResult { + // existing + cppCode: string + headerCode: string + // new — Phase 4 + debugTableCpp: string // contents for generated_debug.cpp + debugMap: DebugMapV2 // path → (arrayIdx, elemIdx), serializable to JSON + // ... +} +``` + +The editor's `strucpp-compiler.ts` wrapper writes `debugTableCpp` to +`/src/generated_debug.cpp` and `JSON.stringify(debugMap)` to +`/src/debug-map.json`. That's the entire editor side of the pipeline. + +### Per-project artifacts (emitted by STruC++'s `compile()`) **`generated_debug.cpp`** — pointer tables only: @@ -64,21 +92,25 @@ that element count. Moving metadata to Flash is necessary but not sufficient: th using namespace strucpp::debug; // Each array caps at ~8000 entries to stay under AVR's 32767-byte single-object limit. -const Entry debug_arr_0[] PROGMEM = { +const Entry debug_arr_0[] STRUCPP_DEBUG_FLASH = { { (void*)&g_config.INSTANCE0.blink, TAG_BOOL }, { (void*)&g_config.INSTANCE0.counter, TAG_INT }, { (void*)&g_config.INSTANCE0.speeds[0], TAG_INT }, { (void*)&g_config.INSTANCE0.speeds[1], TAG_INT }, // ... }; -const Entry debug_arr_1[] PROGMEM = { /* next batch */ }; +const Entry debug_arr_1[] STRUCPP_DEBUG_FLASH = { /* next batch */ }; -const Entry* const debug_arrays[] PROGMEM = { debug_arr_0, debug_arr_1 }; -const uint16_t debug_array_counts[] PROGMEM = { 8000, 5231 }; -const uint8_t debug_array_count = 2; +const Entry* const debug_arrays[] STRUCPP_DEBUG_FLASH = { debug_arr_0, debug_arr_1 }; +const uint16_t debug_array_counts[] STRUCPP_DEBUG_FLASH = { 8000, 5231 }; +const uint8_t debug_array_count = 2; ``` -**`debug-map.json`** — editor-only manifest: +`STRUCPP_DEBUG_FLASH` is defined in `debug_dispatch.hpp` — expands to `PROGMEM` on AVR, +empty elsewhere. This keeps the generated code target-neutral; the runtime header +decides placement. + +**`debug-map.json`** — editor-consumed manifest, also emitted by STruC++: ```json { @@ -101,15 +133,24 @@ const uint8_t debug_array_count = 2; } ``` -Packing rule: emit leaves in declaration order, flush to a new debug array when the -current one reaches 8,000 entries **or** at a program boundary (whichever comes first). -Program-boundary flush isolates per-program churn from downstream arrays. +Packing rule (implemented by the STruC++ codegen): emit leaves in declaration order, +flush to a new debug array when the current one reaches 8,000 entries **or** at a +program boundary (whichever comes first). Program-boundary flush isolates per-program +churn from downstream arrays. ### Shared across all projects (STruC++ runtime headers) **`strucpp/debug_dispatch.hpp`** — the generic handler, unchanged across projects: ```cpp +// Flash-placement macro used by generated_debug.cpp +#ifdef __AVR__ +#include +#define STRUCPP_DEBUG_FLASH PROGMEM +#else +#define STRUCPP_DEBUG_FLASH +#endif + namespace strucpp::debug { enum TypeTag : uint8_t { @@ -250,19 +291,25 @@ Notes: **Exit criteria:** STruC++ runtime exports a single `strucpp::debug::handle_*` API that the editor's Arduino sketch and the Runtime v4 `.so` can both call. No per-project code here. -### 4.2 Editor — code generator for `generated_debug.cpp` + `debug-map.json` +### 4.2 STruC++ — debug table & map generator *(ships in strucpp@≥0.3.0)* -Location: `src/backend/shared/utils/PLC/generate-debug-table.ts` +Location: inside the STruC++ repo, alongside the existing `generated.cpp`/`generated.hpp` +emitter. Not a separate module — same AST walk that already produces the main C++ +output. Inputs: -- `CompileResult` from the STruC++ compile wrapper (AST + symbol tables + project model). -- The `program.st` source (for MD5). +- STruC++'s internal AST + symbol table + project model (already built for the main + compile pass). +- Target hint (optional): `"avr" | "arm" | "linux"` — only used to validate the 8,000 + entries/array cap is sufficient for the target. Emitted output is target-neutral + thanks to the `STRUCPP_DEBUG_FLASH` macro in the runtime header. -Outputs (written to the board's `src/` directory alongside `generated.cpp`): -- `generated_debug.cpp` (Flash-resident pointer tables, packing rule described above). -- `debug-map.json` (editor-side path→address manifest). +Outputs added to `CompileResult`: +- `debugTableCpp: string` — the full contents of `generated_debug.cpp`. +- `debugMap: DebugMapV2` — a structured object the editor serializes to + `debug-map.json`. -Core algorithm: +Core algorithm (lives in the STruC++ codegen): ``` for each program instance in projectModel: @@ -282,18 +329,31 @@ for each program instance in projectModel: Cap per array at 8,000 entries; new array also starts when an element would push the byte count past 32,000 (safety margin vs. AVR's 32,767 limit). +The TypeTag enum emitted into the cpp file **must match** the one in +`debug_dispatch.hpp`. Both live in the STruC++ repo, so this coupling is enforced by +colocation — no cross-repo drift possible. + +**Exit criteria:** `compile()` returns `debugTableCpp` + `debugMap` that together +compile + link + run correctly with the runtime headers. Unit-tested inside STruC++ +against projects with mixed scalars/arrays/structs/FBs. + ### 4.3 Editor — compiler-module wiring -`src/backend/editor/compiler/compiler-module.ts`: -- After `handleCompileSTtoCpp()` produces `generated.cpp/.hpp`, call - `generateDebugTable(compileResult)` to emit the two new files. -- Add `generated_debug.cpp` to the list of sources arduino-cli compiles (lives in the - `src/` library directory, picked up automatically). -- No changes to the Arduino sketch itself — it doesn't need to know about debug tables. +`src/backend/editor/compiler/compiler-module.ts` becomes a thin pass-through: + +- After `handleCompileSTtoCpp()` resolves with the extended `CompileResult`, write + `result.debugTableCpp` to `/src/generated_debug.cpp` and + `JSON.stringify(result.debugMap, null, 2)` to `/src/debug-map.json`. +- arduino-cli picks up `generated_debug.cpp` automatically (library dir is already + included). +- No changes to the Arduino sketch — it doesn't reference the debug tables directly; + the ModbusSlave handlers reach them via the runtime header's `read_entry()`. + +That's the entire editor-side generator change: two extra writeFile calls. ### 4.4 Embedded — ModbusSlave integration -`resources/sources/StrucppBaremetal/ModbusSlave.cpp`: +`resources/sources/Baremetal/ModbusSlave.cpp`: - Replace the existing 0x41–0x45 handler bodies (which call the MatIEC-era `get_var_count()` / `get_var_addr()` / `set_trace()` weak externs) with direct calls into `strucpp::debug::handle_*`. @@ -396,13 +456,15 @@ embedded deployments top out well below that.) ## Testing strategy -1. **Unit tests (STruC++ repo):** `debug_dispatch.hpp` force/read cycle for each - `TypeTag`, using a synthetic Entry table and a mock IECVar. -2. **Compile test:** run `generate-debug-table.ts` against a project with mixed scalars, - arrays, structs, FBs → verify `generated_debug.cpp` compiles on AVR (arduino-cli - `arduino:avr:mega`) and `debug-map.json` shape matches. -3. **Size regression:** the 35K-leaf user project that currently fails MatIEC must - compile cleanly with the new pipeline. +1. **STruC++ runtime tests:** `debug_dispatch.hpp` force/read cycle for each + `TypeTag`, using a synthetic Entry table and a mock IECVar. Covers all elementary + IEC types including STRING/WSTRING special-cases. +2. **STruC++ codegen tests:** `compile()` on projects with mixed scalars, arrays, + structs, FBs → `debugTableCpp` compiles cleanly with the runtime headers; + `debugMap` has the expected path/address entries; array packing respects the + 8,000-entry + program-boundary rules. +3. **Size regression (STruC++ + editor):** the 35K-leaf user project that currently + fails MatIEC must compile cleanly with the new pipeline end-to-end. 4. **End-to-end (Arduino Mega):** reuse the Chris Demo blink project. Force `blink := TRUE` from the editor, verify PB7 stays HIGH across scan cycles. Unforce, verify oscillation resumes. Validate in the avr8js simulator first, then hardware. @@ -436,6 +498,8 @@ embedded deployments top out well below that.) up to N bytes of data. Wire encoding for Phase 4a: `{u16 len, bytes[len]}`. Confirm that forcing a longer value than N is rejected cleanly (return an error status in FC 0x42). -3. **MD5 scope.** Current MatIEC MD5 covers `program.st`. Under v2 the debug-map layout - depends on STruC++ version too — consider hashing `{program.st, strucpp_version}` so - that a runtime library bump invalidates stale editor state automatically. +3. **MD5 scope.** Since STruC++ now owns both the runtime headers and the debug-map + generator, it should compute the MD5 itself over the inputs it actually consumed — + at minimum `{program.st, strucpp_version}`, optionally including the serialized + `debugMap` so any generator change invalidates stale editor state. Emit the MD5 + as a field on `debugMap` and expose the same value to the target via FC 0x45. diff --git a/docs/strucpp-migration/05-runtime-v4-so-interface.md b/docs/strucpp-migration/05-runtime-v4-so-interface.md new file mode 100644 index 000000000..89774a84e --- /dev/null +++ b/docs/strucpp-migration/05-runtime-v4-so-interface.md @@ -0,0 +1,448 @@ +# Phase 5: Runtime v4 `.so` Interface (C++ Runtime, Minimal Shim) + +> **Revision history.** +> +> 1. *Original draft (pre-Arduino).* Proposed a flat-index `debug_vars[]`-shaped +> compatibility layer in a `v4_compat.cpp` shim, with Phase 7 later +> upgrading the runtime to hierarchical addressing. +> 2. *First revision.* Arduino shipped with hierarchical `(arr_idx, elem_idx)` +> debug from day one; the flat compatibility layer was dropped. The shim +> grew to ~150 lines (`runtime_v4_entry.cpp`) and was packaged by the +> editor into every project's upload zip. Runtime stayed C and used +> extensive C-linkage exports (`strucpp_get_task_count`, `strucpp_run_task`, +> `strucpp_get_located_vars`, …). +> 3. **Current revision.** The runtime sources become C++. The C-linkage +> surface collapses to a *single* entry symbol — `strucpp_get_config()` — +> plus the debug-PDU shims provided by `debug_dispatch.hpp`. The shim +> file shrinks to ~10 lines and **lives in the runtime repo**, not the +> editor. The editor's upload bundle goes back to just +> `generated.cpp` / `generated.hpp` / `generated_debug.cpp` plus the +> versioned strucpp runtime header set. + +## Goal + +Build a STruC++-compiled `.so` that the OpenPLC Runtime v4 can `dlopen()` and +operate on directly using STruC++'s native C++ class hierarchy — no +per-walk shim functions, no per-project glue. Achieve this by making the +runtime sources C++ themselves, so they can include the strucpp runtime +headers (`iec_std_lib.hpp`, `iec_located.hpp`, `debug_dispatch.hpp`) and +call into the loaded program through plain virtual dispatch. + +## Prerequisites + +- Phase 1 (STruC++ dependency infrastructure) — done +- Phase 2 (Editor compiler pipeline) — done +- Phase 3 (Arduino runtime) — done; same `LocatedVar` / `Configuration` + walking logic applies +- Phase 4 (Debugger) — done; `debug_dispatch.hpp` already exposes + `STRUCPP_V4_DEBUG_EXPORTS_DEFINE` C-linkage shims for the PDU surface +- Runtime v4 codebase at `~/Documents/Code/openplc-runtime` + +## Why C++ Runtime + +The runtime is built **once**; the user program `.so` is loaded at +runtime. The runtime cannot include `generated.hpp` because it doesn't +know the program at compile time. But it **can** include the strucpp +runtime headers (which define the stable `ConfigurationInstance`, +`ResourceInstance`, `TaskInstance`, `ProgramBase`, `LocatedVar` types) — +those don't depend on the user program. + +Once the runtime has those base classes in scope, virtual dispatch +through a `ConfigurationInstance*` pointer Just Works across DSO +boundaries: the vtable lives in the `.so`, the runtime calls the base +method, dynamic dispatch routes to the right derived implementation. + +```cpp +// Runtime (C++): +auto* cfg = strucpp_get_config(); // dlsym'd, returns ConfigurationInstance* +size_t r_count = cfg->get_resource_count(); // virtual dispatch — no shim +auto* res = cfg->get_resources(); // virtual dispatch — no shim +for (size_t r = 0; r < r_count; ++r) { + for (size_t t = 0; t < res[r].task_count; ++t) { + auto& task = res[r].tasks[t]; + // task.name, task.interval_ns, task.priority — direct field reads + // task.programs[p]->run() — virtual dispatch into the .so's program body + } +} +``` + +The 150-line `runtime_v4_entry.cpp` from the previous revision (with its +`strucpp_get_task_count`, `strucpp_get_task_name`, +`strucpp_get_task_interval_ns`, `strucpp_get_task_priority`, +`strucpp_run_task`, `strucpp_get_located_var_count`, +`strucpp_get_located_vars` exports) — all gone. The runtime walks the +configuration directly. + +## What the .so Exports (the Whole Surface) + +Five entry points plus two read-only data symbols. Two of the entry +points are debug PDU shims provided by `debug_dispatch.hpp`; one is the +`Configuration` accessor the runtime walks; one is the locks setter the +runtime calls right after `dlopen` (Phase 8 plumbing); one is the +debug-PDU set/read pair. + +```c +/* From the runtime-side shim (one source file in openplc-runtime): */ +extern strucpp::ConfigurationInstance* strucpp_get_config(void); +extern void strucpp_set_locks(pthread_mutex_t* image_tables_mutex, + pthread_mutex_t* global_vars_mutex); + +/* From debug_dispatch.hpp's STRUCPP_V4_DEBUG_EXPORTS_DEFINE block: */ +extern uint8_t strucpp_debug_array_count(void); +extern uint16_t strucpp_debug_elem_count(uint8_t arr); +extern uint16_t strucpp_debug_size(uint8_t arr, uint16_t elem); +extern uint8_t strucpp_debug_set(uint8_t arr, uint16_t elem, + bool forcing, + const uint8_t *bytes, uint16_t len); +extern uint16_t strucpp_debug_read(uint8_t arr, uint16_t elem, + uint8_t *dest); + +/* From generated.cpp directly — STruC++ already emits these: */ +extern unsigned long long common_ticktime__; /* informational */ +extern const char *plc_program_md5; /* MD5 of program.st */ +``` + +**Mutex ownership.** The runtime owns the image-tables mutex (the +existing `buffer_mutex`) and a new globals mutex; both are recursive +priority-inheriting `pthread_mutex_t`. The `.so` doesn't allocate +either — it just stores the pointers the runtime hands it via +`strucpp_set_locks` and exposes them through the lock guards in +`iec_threading.hpp` (Phase 8). One mutex per resource, no duplicates. + +The debug PDU functions still exist as C-linkage shims because they need +to resolve `debug_arrays[]` / `debug_array_counts[]` / `debug_array_count` +inside the `.so`'s own address space — that's fundamentally a cross-DSO +data access, which virtual dispatch doesn't help with. One `#define` in +the runtime shim file enables them. + +Symbols that **don't** need to exist anywhere: + +| Old surface | Reason it's gone | +|---|---| +| `config_run__` | Runtime calls `task.programs[p]->run()` directly via vtable | +| `glueVars` / `setBufferPointers` / `setBufferPointers_v4` | Runtime walks `strucpp::locatedVars[]` itself | +| `set_endianness` | STruC++ uses fixed-width types; editor probes via the MD5 echo in FC 0x45 | +| `strucpp_get_task_count` / `strucpp_get_task_name` / `strucpp_get_task_interval_ns` / `strucpp_get_task_priority` / `strucpp_run_task` | Direct virtual dispatch on `ConfigurationInstance*` | +| `strucpp_get_located_var_count` / `strucpp_get_located_vars` | `strucpp::locatedVars` and `locatedVarsCount` are accessed directly through the strucpp namespace (the runtime includes `iec_located.hpp`) | +| `trace_reset`, `get_var_count` / `get_var_size` / `get_var_addr` / `set_trace` (the legacy MatIEC flat-index surface) | Replaced by `strucpp_debug_*`. Plugins that consumed these (OPC UA primarily) are paused until Phase 9. | +| `strucpp_debug_get_addr` (the optional address-accessor that fed `plugin_utils.c`) | Removed alongside the flat-index plugin compat | +| `python_loader_set_loggers` | Out of scope for this phase; covered separately when Python POU bridge is reworked | + +## The Runtime-Side Shim + +Lives in **`openplc-runtime/core/strucpp_runtime/runtime_v4_entry.cpp`**. +About 10 lines, identical for every project, compiled into every +`libplc_.so`: + +```cpp +// runtime_v4_entry.cpp +// +// Static entry shim for STruC++-compiled OpenPLC programs on Linux. +// The runtime dlopens the .so and dlsyms: +// - strucpp_get_config() — for walking the configuration via vtable +// - strucpp_set_locks() — to plumb the runtime-owned mutexes in +// - strucpp_debug_* — the PDU helpers defined by debug_dispatch.hpp +// +// All other interactions are virtual dispatch through ConfigurationInstance*. + +#define STRUCPP_V4_DEBUG_EXPORTS_DEFINE +#include "debug_dispatch.hpp" +#include "iec_threading.hpp" // declares strucpp::g_image_tables_mutex_ptr etc. +#include "generated.hpp" + +#include + +namespace strucpp { + pthread_mutex_t* g_image_tables_mutex_ptr = nullptr; + pthread_mutex_t* g_global_vars_mutex_ptr = nullptr; +} + +static strucpp::Configuration_CONFIG0 g_config; + +extern "C" strucpp::ConfigurationInstance* strucpp_get_config(void) { + return &g_config; +} + +extern "C" void strucpp_set_locks(pthread_mutex_t* image_tables_mutex, + pthread_mutex_t* global_vars_mutex) { + strucpp::g_image_tables_mutex_ptr = image_tables_mutex; + strucpp::g_global_vars_mutex_ptr = global_vars_mutex; +} +``` + +That is the entire shim. It belongs in the runtime repo because: + +- It is a **build-time concern of the runtime**: `compile.sh` consumes it + alongside the editor's `generated.cpp/hpp/_debug.cpp` to produce the + `.so`. The editor doesn't need to know it exists. +- It is **stable** in a way the editor's payload is not — it doesn't + change per project, only when the runtime's expectations change. + Versioning it with the runtime keeps the contract owned by one repo. +- It has **no compile-time link** to the editor: nothing in the editor + references it; nothing copies it; nothing embeds it. The editor's + upload bundle stops at the user-program payload. + +## Editor Upload Bundle (Reduced) + +``` +core/generated/ +├── generated.cpp +├── generated.hpp +├── generated_debug.cpp +├── c_blocks_code.cpp # only if user used C blocks +├── c_blocks.h # only if user used C blocks +└── strucpp_runtime/ + └── include/ # full STruC++ runtime header set + ├── debug_dispatch.hpp + ├── iec_std_lib.hpp + ├── iec_var.hpp + ├── iec_located.hpp + └── ... (all STruC++ runtime headers, version-locked to the + STruC++ release that produced generated.cpp) +``` + +No `runtime_v4_entry.cpp/h`. No `resources/openplc-runtime-shim/` tracked +folder in the editor repo (delete it from this branch — it was added in +the previous revision to mirror the shim files; it's now obsolete). + +## Runtime-Side Source Conversion + +The following sources convert from `.c` to `.cpp` so they can include the +strucpp runtime headers and call virtual methods on `ConfigurationInstance*`: + +``` +core/src/plc_app/plc_main.c -> plc_main.cpp +core/src/plc_app/image_tables.c -> image_tables.cpp +core/src/plc_app/debug_handler.c -> debug_handler.cpp +core/src/plc_app/plc_state_manager.c -> plc_state_manager.cpp +core/src/plc_app/scan_cycle_manager.c -> scan_cycle_manager.cpp +core/src/plc_app/plc_io_cycle.c -> plc_io_cycle.cpp +core/src/plc_app/plcapp_manager.c -> plcapp_manager.cpp +core/src/plc_app/unix_socket.c -> stays C (pure POSIX) +core/src/plc_app/journal_buffer.c -> stays C (pure C) +core/src/plc_app/utils/utils.c -> stays C (pure POSIX) +core/src/plc_app/utils/log.c -> stays C +core/src/plc_app/utils/watchdog.c -> stays C (only references + PlcTaskCtx / atomic_long) +``` + +Mechanical changes that ripple through: + +- `CMakeLists.txt`: project type changes from `C` to `CXX`, sources move + from `add_executable(... .c)` to `.cpp`. Add `target_compile_features(plc_main PRIVATE cxx_std_17)`. +- `Python.h` is C; any `.cpp` that touches it wraps the include in + `extern "C" { ... }`. Same for `dlfcn.h` (already declared `extern "C"`, + so usually transparent). +- All previously-`extern` C-linkage globals stay valid: declarations like + `extern unsigned long tick__;` work identically in C++ TUs. +- The plugin manager (C interface, C-linkage `void*` symbol returns) + needs no change. C++ callers just use it. + +The conversion is mechanical — this is not "rewrite the runtime in C++"; +it's "rename the files and let the C code compile under C++". The +behavior is identical until we start using C++ idioms (the +`ConfigurationInstance*` walking, RAII guards, `std::lock_guard`). + +## Image-Table Binding + +The runtime walks `strucpp::locatedVars[]` itself — same loop the Arduino +sketch uses, lifted into the runtime. Conceptual sketch: + +```cpp +void image_tables_bind_located_vars() { + using namespace strucpp; + for (uint32_t i = 0; i < locatedVarsCount; ++i) { + const LocatedVar& lv = locatedVars[i]; + if (!lv.pointer) { + log_warn("locatedVars[%u] has NULL pointer (area=%u size=%u byte=%u bit=%u)", + i, (unsigned)lv.area, (unsigned)lv.size, + (unsigned)lv.byte_index, (unsigned)lv.bit_index); + continue; + } + switch (lv.area) { + case LocatedArea::Input: bind_input(lv); break; + case LocatedArea::Output: bind_output(lv); break; + case LocatedArea::Memory: bind_memory(lv); break; + } + } +} +``` + +The image-table buffers themselves are unchanged (`bool_input[][8]`, +`int_input[]`, `dint_input[]`, etc.). This is the same pattern the +Arduino sketch uses — the whole point is to keep plugins reading raw +pointers exactly as before. `lv.pointer` is `IECVar::raw_ptr()`, +i.e. `&value_` of the IEC variable; plugins reading +`*int_input[byte_index]` see the underlying primitive directly. Forcing +semantics still work because `IECVar::force(v)` writes both +`value_` and `forced_value_`. + +## Debug Handler + +`debug_handler.cpp` calls the strucpp debug helpers directly through +either: + +- The C-linkage shims (`strucpp_debug_set` / `strucpp_debug_read` etc.) + that `STRUCPP_V4_DEBUG_EXPORTS_DEFINE` provides — dlsym'd from the + loaded .so so they resolve to the shim's TU which sees the per-project + `debug_arrays[]`. **This is the path we use** because the runtime is + loaded once and the .so changes per program. +- Or, if we wanted to skip dlsym, we could include `debug_dispatch.hpp` + in the runtime — but the inline functions reference `extern const Entry* const debug_arrays[]` + which only resolves at link time, and we don't link against the .so. + So dlsym remains the correct boundary. + +The debug FC 0x41–0x45 wire format stays exactly as Phase 4 / the Arduino +runtime ship it — including the request-snapshot fix (the request lives +at `mb_frame[3..]`, the response at `mb_frame[10..]`, they overlap; copy +the request before any response writes). + +| FC | Name | Wire format | +|---|---|---| +| 0x41 | DEBUG_INFO | req `[FC]` → resp `[FC, arrCount, STATUS, count_0_hi, count_0_lo, …]` | +| 0x42 | DEBUG_SET | req `[FC, arr, elem_hi, elem_lo, force, len_hi, len_lo, value…]` → resp `[FC, STATUS]` | +| 0x43 | DEBUG_GET | req `[FC, arr, start_hi, start_lo, end_hi, end_lo]` → resp `[FC, STATUS, last_hi, last_lo, tick(4), size_hi, size_lo, data…]` | +| 0x44 | DEBUG_GET_LIST | req `[FC, count_hi, count_lo, (arr, elem_hi, elem_lo)×count]` → resp same shape as 0x43 | +| 0x45 | DEBUG_GET_MD5 | req `[FC, endian_hi, endian_lo]` → resp `[FC, STATUS, md5_ascii…, endian_echo_hi, endian_echo_lo]` | + +The 1400-byte conservative cap from the Arduino sketch is dropped; +Linux-side `MAX_DEBUG_FRAME` (4 KB or higher) is the only limit. + +## Debug Arrays on Linux + +Worth a section because the Arduino-Linux protocol parity question keeps +coming up: **the architecture does not change between Arduino and +Linux.** On both, `generated_debug.cpp` emits the same per-array tables, +split at the same 8000-entry threshold. On Arduino these go into +`PROGMEM` (flash). On Linux they go into `.rodata` of the `.so`, +mapped read-only by `dlopen()` with **lazy paging**: the kernel doesn't +load any debug array pages into RAM until something dereferences them, +and a debugger session that scopes ~50 variables only touches a handful +of 4 KB pages. + +Even a 30 K-leaf project with a 480 KB debug section costs nothing in +RAM until it's actually scoped. There's no need for a Linux-specific +layout, allocator, or compression scheme. Keeping the protocol identical +between Arduino and Linux targets is a feature, not a constraint to work +around. + +## Flat-Index API Removal + +The previous revision kept a runtime-side flat→hierarchical translation +table (`image_tables_build_flat_var_map`, `image_tables_flat_var_count`, +`image_tables_flat_var_addr`) so plugins consuming the legacy +`get_var_count` / `get_var_size` / `get_var_addr` API would keep +compiling. **That's gone.** + +Reasoning: the flat indexing scheme has no path forward. The editor's +debug-map is hierarchical; the only way a plugin can know which `(arr, +elem)` corresponds to a given user variable is to consume the same +debug-map. Wrapping the new world in old-API clothes obscures rather +than helps the migration. + +Concrete deletions: + +- `core/src/plc_app/image_tables.{h,c}`: drop `image_tables_build_flat_var_map`, + `image_tables_flat_var_count`, `image_tables_flat_var_addr`, + `strucpp_flat_addr_t`, the `g_flat_map` storage. +- `core/src/drivers/plugin_utils.c`: delete the file (or strip it down to + comments — only the now-removed flat helpers lived there). +- `core/src/drivers/plugin_types.h` (`plugin_runtime_args_t`): remove the + `get_var_list`, `get_var_size`, `get_var_count` fields. +- `runtime_v4_entry.cpp`: drop `strucpp_debug_get_addr` (it only existed + to feed `plugin_utils.c`). + +Plugins that consumed this surface — primarily the OPC UA Python plugin — +will fail to start. Document this explicitly in the changelog and +`plugins.conf` defaults; OPC UA stays disabled until Phase 9 migrates +it onto the hierarchical PDU API. + +## `compile.sh` + +```bash +#!/bin/bash +set -euo pipefail + +GENERATED_DIR="core/generated" +RUNTIME_INCLUDE="$GENERATED_DIR/strucpp_runtime/include" +RUNTIME_SHIM="core/strucpp_runtime/runtime_v4_entry.cpp" # tracked in this repo +BUILD_DIR="build" + +mkdir -p "$BUILD_DIR" + +# Required: editor's payload + the runtime-side shim +[ -f "$GENERATED_DIR/generated.cpp" ] || { echo "missing $GENERATED_DIR/generated.cpp" ; exit 1; } +[ -f "$GENERATED_DIR/generated.hpp" ] || { echo "missing $GENERATED_DIR/generated.hpp" ; exit 1; } +[ -f "$GENERATED_DIR/generated_debug.cpp" ] || { echo "missing $GENERATED_DIR/generated_debug.cpp"; exit 1; } +[ -f "$RUNTIME_SHIM" ] || { echo "missing $RUNTIME_SHIM" ; exit 1; } +[ -d "$RUNTIME_INCLUDE" ] || { echo "missing $RUNTIME_INCLUDE" ; exit 1; } + +# Reject stale MatIEC bundles loud and clear +if [ -f "$GENERATED_DIR/Config0.c" ] || [ -f "$GENERATED_DIR/glueVars.c" ]; then + echo "[ERROR] MatIEC artifacts present in $GENERATED_DIR — re-export from a STruC++-aware editor build" >&2 + exit 2 +fi + +CXXFLAGS=( + -std=c++17 -O2 -fPIC -Wall -Wno-unknown-pragmas + -I "$GENERATED_DIR" -I "$RUNTIME_INCLUDE" +) + +g++ "${CXXFLAGS[@]}" -c "$GENERATED_DIR/generated.cpp" -o "$BUILD_DIR/generated.o" +g++ "${CXXFLAGS[@]}" -c "$GENERATED_DIR/generated_debug.cpp" -o "$BUILD_DIR/generated_debug.o" +g++ "${CXXFLAGS[@]}" -c "$RUNTIME_SHIM" -o "$BUILD_DIR/runtime_v4_entry.o" + +EXTRA_OBJS="" +if [ -f "$GENERATED_DIR/c_blocks_code.cpp" ]; then + g++ "${CXXFLAGS[@]}" -c "$GENERATED_DIR/c_blocks_code.cpp" -o "$BUILD_DIR/c_blocks_code.o" + EXTRA_OBJS="$BUILD_DIR/c_blocks_code.o" +fi + +g++ -shared -fPIC -o "$BUILD_DIR/new_libplc.so" \ + "$BUILD_DIR/generated.o" \ + "$BUILD_DIR/generated_debug.o" \ + "$BUILD_DIR/runtime_v4_entry.o" \ + $EXTRA_OBJS \ + -lpthread -lrt +``` + +## Files Created / Modified + +| File | Action | +|------|--------| +| `openplc-runtime/core/strucpp_runtime/runtime_v4_entry.cpp` | **New** – ~10-line static shim, single C-linkage entry + debug PDU shim activation | +| `openplc-runtime/core/strucpp_runtime/iec_std_lib.hpp` (and the rest of the strucpp runtime header set) | Vendored at a known version, mirror of `resources/strucpp/runtime/include/` from the editor; provides the base classes and `LocatedVar` to the runtime's C++ TUs | +| `openplc-runtime/core/include/strucpp/runtime_v4_entry.h` | **Deleted** – C-linkage typedefs no longer needed (runtime is C++ now) | +| `openplc-runtime/core/strucpp_runtime_template/runtime_v4_entry.cpp` | **Deleted** – previous 150-line template, replaced by the 10-line shim above | +| `openplc-runtime/core/src/plc_app/*.c` | Renamed to `.cpp` (mechanical) | +| `openplc-runtime/core/src/plc_app/image_tables.{h,cpp}` | Walks `strucpp::locatedVars[]` directly via included `iec_located.hpp`; drops flat-index map and all flat helpers | +| `openplc-runtime/core/src/plc_app/debug_handler.cpp` | Calls `strucpp_debug_*` shims dlsym'd from the .so | +| `openplc-runtime/core/src/plc_app/plc_state_manager.cpp` | dlsyms `strucpp_get_config()`, walks the configuration via virtual dispatch, spawns task threads (Phase 6 territory) | +| `openplc-runtime/core/src/drivers/plugin_utils.c` | **Deleted** | +| `openplc-runtime/core/src/drivers/plugin_types.h` | `get_var_list`/`get_var_size`/`get_var_count` removed from `plugin_runtime_args_t` | +| `openplc-runtime/core/src/CMakeLists.txt` | Project type `C` → `CXX`; sources renamed to `.cpp`; `target_compile_features` C++17 | +| `openplc-runtime/scripts/compile.sh` | Compiles the editor's payload + the runtime shim; rejects MatIEC bundles | +| `openplc-editor/src/backend/editor/compiler/compiler-module.ts` | v4 upload bundle reduced to `generated.cpp/hpp/_debug.cpp` + runtime headers; **does not** ship a runtime shim | +| `openplc-editor/resources/openplc-runtime-shim/` | **Deleted** – obsolete (shim moved to runtime repo) | + +## Testing Strategy + +1. **Symbol presence**: `nm -gU build/new_libplc.so` lists exactly: + `strucpp_get_config`, `strucpp_set_locks`, `strucpp_debug_array_count`, + `strucpp_debug_elem_count`, `strucpp_debug_size`, `strucpp_debug_set`, + `strucpp_debug_read`, `common_ticktime__`, `plc_program_md5`. + Nothing else of consequence. +2. **Virtual-dispatch round-trip**: a small C++ harness `dlopen`s the .so, + resolves `strucpp_get_config`, calls + `cfg->get_resources()[0].tasks[0].programs[0]->run()`, and verifies the + program body actually executed. +3. **Image-table binding**: upload a project with mixed `%I` / `%Q` / `%M` + located variables; verify each shows up in the right runtime buffer + slot after `image_tables_bind_located_vars()`. +4. **Debug protocol**: editor connects to the runtime via the existing + debug transport; FC 0x41–0x45 round-trip identically to the Arduino path. +5. **MatIEC bundle rejection**: stage a project zip with `Config0.c` in + `core/generated/`; `compile.sh` exits with code 2 and a clear message. +6. **OPC UA**: confirm the plugin fails to start with a `Plugin disabled + pending hierarchical-API migration (see Phase 9)` log line. No + crashes; the rest of the runtime continues normally. diff --git a/docs/strucpp-migration/06-runtime-v4-thread-per-task.md b/docs/strucpp-migration/06-runtime-v4-thread-per-task.md new file mode 100644 index 000000000..1607d4abf --- /dev/null +++ b/docs/strucpp-migration/06-runtime-v4-thread-per-task.md @@ -0,0 +1,380 @@ +# Phase 6: Thread-Per-Task Model for Runtime v4 + +> **Revision note (1).** This doc was first rewritten after Phase 3/4 +> (Arduino) shipped. The old draft assumed an "old single-threaded +> round-robin .so" and a "new per-task .so" coexisting in the runtime. +> We're not carrying that forward — Phase 5 already eliminates the +> single-threaded path (no `config_run__`). Thread-per-task is the only +> mode the new runtime supports. +> +> **Revision note (2).** Two changes follow from the Phase 5 rewrite +> (runtime → C++) and the Phase 8 codegen extensions: +> +> 1. **No more C-linkage `strucpp_get_task_*` accessors.** The runtime +> walks `ConfigurationInstance*` via virtual dispatch; per-task data +> (name, interval, priority, affinity) is read straight from the +> `TaskInstance` struct. +> 2. **CPU affinity defaults to "no pinning".** The previous revision +> pinned task `i` to CPU `i mod nproc` round-robin — that was always +> a placeholder. With Phase 8 adding `CPU_AFFINITY` to `TASK` +> declarations, affinity comes from the user program. When unset, +> `pthread_setaffinity_np` is **not** called and the kernel decides. +> +> **Revision note (3, current).** Phase 7 was reverted from "plugin +> worker threads" to "anchor housekeeping on the fastest IEC task". +> One small change here: each `PlcTaskCtx` gains an `is_fastest_task` +> boolean. The thread function branches on it to run the housekeeping +> window pre/post its body. Selection rule: lowest `interval_ns`, +> tie-break by highest `priority`, then by declaration order. + +## Goal + +Each declared IEC task runs on its own POSIX thread under SCHED_FIFO with a +priority derived from the task's declared priority. Threads coordinate access +to shared state through a single `buffer_mutex` (granular per-variable locking +is a later optimization). + +## Prerequisites + +- Phase 5 (.so interface, `strucpp_get_task_count` / `strucpp_run_task` etc.) +- Linux runtime at `~/Documents/Code/openplc-runtime` + +## What thread-per-task buys us (and what it doesn't) + +It is worth being honest about this up front. With a single `buffer_mutex` +serializing every task body, **threads do not run their computation in +parallel**. What we do get: + +1. **Period accuracy per task.** Each task wakes on its own + `clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME)` deadline; a slow task no + longer drags fast tasks. Jitter is bounded by per-task wake-up precision, + not by the GCD of all task intervals. +2. **Priority-driven preemption.** SCHED_FIFO ensures that when a high-priority + task becomes runnable, the kernel preempts a sleeping low-priority task + instantly. The mutex is priority-inheriting (already used today via + `init_rt_mutex` in `utils.c`), so a low-priority task holding the mutex + inherits the highest waiter's priority while it runs — no priority + inversion stalls. +3. **Independent crash isolation.** A SIGFPE in one task takes down only that + task's thread; the others continue until the runtime tears them all down + in response to the resulting `PLC_STATE_ERROR`. + +What it does **not** buy: + +- True parallel execution of task bodies. That requires either lock-free + shared-state access or per-variable locking — both are future work and + benefit from the same `.so` interface. +- A free lunch on multi-core: most PLC programs are I/O-bound and dominated + by per-task period, not compute, so this rarely matters. + +## Architecture overview + +``` + +-------------- I/O coordinator ---------------+ + | (highest-priority task drives plugin hooks, | + | see Phase 7 for the alternative dedicated | + | coordinator-thread topology) | + +----------------------------------------------+ + | ++------------------+ +-----+-------+ +------------------+ +| Task 0 (highest) | | Task 1 | | Task N | +| pri 50, 10ms | | pri 30, 50ms| | pri 10, 1000ms | +| SCHED_FIFO | | SCHED_FIFO | | SCHED_FIFO | ++--------+---------+ +------+------+ +--------+---------+ + | | | + +--------- buffer_mutex (PRIO_INHERIT) ----+ + | + image tables, + VAR_GLOBAL state, + plugin journals +``` + +## Task indexing + +The runtime spawns task threads in the order STruC++ emits them in +`ConfigurationInstance` (declaration order from the `.st` file). There is +no priority-sorted contract; SCHED_FIFO + the priority on each task's +`sched_param` decides who actually runs. + +**One task is marked as the "fastest task"** before threads are spawned, +and that mark drives the housekeeping window in Phase 7. Selection: + +1. Smallest positive `interval_ns` wins. +2. If multiple tasks tie on interval, the one with the highest priority + wins. +3. If they also tie on priority, declaration order breaks the tie (first + one in `ConfigurationInstance` wins). + +If two tasks share a priority *and* an interval, the kernel +round-robins between them within that priority band — same as any +other SCHED_FIFO setup. The "fastest" mark goes to one of them +deterministically per the rules above. + +## Thread descriptor + +```c +/* core/src/plc_app/plc_state_manager.h */ + +#include "runtime_v4_entry.h" /* C-linkage LocatedVar / TaskInfo */ +#include +#include +#include + +typedef struct { + size_t idx; /* index into plc_tasks[] */ + int64_t interval_ns; + int priority; /* IEC TASK priority, mapped 1..99 */ + uint64_t cpu_affinity_mask; /* 0 = no pinning, kernel decides */ + bool is_fastest_task; /* this thread runs the housekeeping window */ + pthread_t thread; + char name[32]; /* "plc-task-" for /proc visibility */ + + /* Per-thread state — must NOT be shared across threads */ + sigjmp_buf crash_jmp; + volatile int crash_sig; + int holding_mutex; /* set inside the critical section */ + + /* Heartbeat for the watchdog. The watchdog checks max(time(NULL) - hb) + * across all task threads — a single hung task is enough to trip it. */ + atomic_long heartbeat; + + /* Cycle stats, per-task */ + atomic_uint_least64_t local_tick; + atomic_long last_overrun_ns; +} PlcTaskCtx; + +extern PlcTaskCtx *plc_tasks; /* heap-allocated array, plc_task_count entries */ +extern size_t plc_task_count; +``` + +Per-thread state (`crash_jmp`, `crash_sig`, `holding_mutex`) lives **inside the +context struct**, not in file-scope globals. The old single-thread code path +relied on a single `crash_jmp_buf` global; that doesn't work with multiple +threads. Each task's `crash_jmp` is private to its own thread. + +## Thread function + +```c +/* core/src/plc_app/plc_state_manager.c */ + +static void* plc_task_thread(void* arg) { + PlcTaskCtx* ctx = (PlcTaskCtx*)arg; + + /* /proc visibility for debugging */ + pthread_setname_np(pthread_self(), ctx->name); + + /* Real-time priority. Map IEC priority (often 0..100) to SCHED_FIFO + * (1..99), clamping at the edges. */ + int rt_prio = ctx->priority; + if (rt_prio < 1) rt_prio = 1; + if (rt_prio > 99) rt_prio = 99; + struct sched_param sp = { .sched_priority = rt_prio }; + if (pthread_setschedparam(pthread_self(), SCHED_FIFO, &sp) != 0) { + log_warn("[task %s] could not set SCHED_FIFO (priority %d): %s — " + "running at default priority. RT quota / capabilities?", + ctx->name, rt_prio, strerror(errno)); + } + + /* CPU affinity — only applied if the user supplied one in the .st via + * Phase 8's CPU_AFFINITY parameter. A zero mask means "kernel decides" + * and we make no syscall. */ + uint64_t affinity_mask = task->cpu_affinity_mask; /* from TaskInstance */ + if (affinity_mask != 0) { + cpu_set_t cs; + CPU_ZERO(&cs); + for (int cpu = 0; cpu < CPU_SETSIZE && cpu < 64; ++cpu) { + if (affinity_mask & (1ULL << cpu)) CPU_SET(cpu, &cs); + } + if (pthread_setaffinity_np(pthread_self(), sizeof cs, &cs) != 0) { + log_warn("[task %s] pthread_setaffinity_np failed: %s", + ctx->name, strerror(errno)); + } + } + + /* Per-thread crash recovery. */ + install_per_thread_crash_handlers(ctx); + if (sigsetjmp(ctx->crash_jmp, 1) != 0) { + if (ctx->holding_mutex) { + ctx->holding_mutex = 0; + plugin_mutex_give(&plugin_driver->buffer_mutex); + } + log_error("[task %s] crashed (signal %d) — entering ERROR state", + ctx->name, ctx->crash_sig); + plc_set_state(PLC_STATE_ERROR); + return NULL; + } + + /* Initialize timing. */ + struct timespec next_wakeup; + clock_gettime(CLOCK_MONOTONIC, &next_wakeup); + + while (plc_get_state() == PLC_STATE_RUNNING) { + ctx->holding_mutex = 1; + plugin_mutex_take(&plugin_driver->buffer_mutex); + + /* Phase 7 inserts plugin hooks here for ctx->idx == 0. The bare + * thread-per-task model just runs the task body. */ + ext_strucpp_run_task(ctx->idx); + + plugin_mutex_give(&plugin_driver->buffer_mutex); + ctx->holding_mutex = 0; + + atomic_store_explicit(&ctx->heartbeat, (long)time(NULL), + memory_order_relaxed); + atomic_fetch_add_explicit(&ctx->local_tick, 1, + memory_order_relaxed); + + /* Sleep until next period. */ + next_wakeup.tv_nsec += (long)(ctx->interval_ns % 1000000000LL); + next_wakeup.tv_sec += (time_t)(ctx->interval_ns / 1000000000LL); + if (next_wakeup.tv_nsec >= 1000000000L) { + next_wakeup.tv_nsec -= 1000000000L; + next_wakeup.tv_sec += 1; + } + int rc = clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, + &next_wakeup, NULL); + if (rc == EINTR) continue; /* shutdown signal will flip state */ + } + + log_info("[task %s] stopped after %llu ticks", ctx->name, + (unsigned long long)atomic_load(&ctx->local_tick)); + return NULL; +} +``` + +`install_per_thread_crash_handlers(ctx)` is a thin wrapper that uses +`pthread_sigmask` + `sigaction(SA_SIGINFO)` and stashes the `PlcTaskCtx*` in +thread-local storage so the signal handler can `siglongjmp` to the right +`crash_jmp`. Implementation lives in `utils.c` next to the existing +`init_rt_mutex` helpers. + +## Lifecycle + +### Spawn + +`load_plc_program()` resolves the new symbols, calls `config_init__()`, walks +`locatedVars[]` to bind image tables (Phase 5), then spawns one thread per +task: + +```c +size_t n = ext_strucpp_get_task_count(); +plc_tasks = calloc(n, sizeof(PlcTaskCtx)); +plc_task_count = n; + +for (size_t i = 0; i < n; ++i) { + PlcTaskCtx* ctx = &plc_tasks[i]; + ctx->idx = i; + ctx->interval_ns = ext_strucpp_get_task_interval_ns(i); + ctx->priority = ext_strucpp_get_task_priority(i); + snprintf(ctx->name, sizeof ctx->name, "plc-task-%zu", i); + atomic_init(&ctx->heartbeat, (long)time(NULL)); + atomic_init(&ctx->local_tick, 0); + + if (pthread_create(&ctx->thread, NULL, plc_task_thread, ctx) != 0) { + log_error("Failed to spawn task %zu: %s", i, strerror(errno)); + plc_set_state(PLC_STATE_ERROR); + return; + } +} +``` + +If a task has `interval_ns <= 0` (continuous/event-driven, not yet supported), +log a warning and skip it. If after spawning, no tasks were created, transition +to `PLC_STATE_ERROR`. + +### Stop + +```c +void stop_plc_program(void) { + plc_set_state(PLC_STATE_STOPPING); + + /* SIGUSR1 wakes any task currently blocked in clock_nanosleep so the + * EINTR path lets them observe the new state. We mask SIGUSR1 in the + * threads' signal mask elsewhere so it isn't accidentally handled. */ + for (size_t i = 0; i < plc_task_count; ++i) { + pthread_kill(plc_tasks[i].thread, SIGUSR1); + } + for (size_t i = 0; i < plc_task_count; ++i) { + pthread_join(plc_tasks[i].thread, NULL); + } + + free(plc_tasks); + plc_tasks = NULL; + plc_task_count = 0; + plc_set_state(PLC_STATE_STOPPED); +} +``` + +### Watchdog + +The watchdog (separate thread, already exists today) iterates the task array +once per second and checks `time(NULL) - max(heartbeat)`. If any task hasn't +ticked in `WATCHDOG_TIMEOUT_S` seconds, it logs which task is stuck and +transitions to `PLC_STATE_ERROR`. + +## Mapping IEC priority to SCHED_FIFO + +IEC 61131-3 doesn't fix the priority range. Most editors emit 0..100. Linux +SCHED_FIFO is 1..99. We clamp: + +```c +int rt = ctx->priority; +if (rt < 1) rt = 1; +if (rt > 99) rt = 99; +``` + +If the runtime lacks `CAP_SYS_NICE` (e.g., running as a non-privileged user +inside a container without `--cap-add=SYS_NICE`), `pthread_setschedparam` +fails. We **log a warning and continue** at default scheduling — the task +still runs, just without RT preemption. Operational guidance: deployments +that need RT must grant the capability or use `rtprio` in +`/etc/security/limits.conf`. + +## What this thread does + +The thread function from this phase runs the **task body** and nothing +else. **Phase 7** specializes the fastest-task thread to additionally +wrap the body in a housekeeping window: + +```cpp +// Phase 7 specialization — fastest task only +if (ctx->is_fastest_task) { + plc_run_io_cycle_pre(); // journal_apply + plugin cycle_start +} +ext_strucpp_run_task(ctx->idx); +if (ctx->is_fastest_task) { + plc_run_io_cycle_post(); // updateTime + plugin cycle_end + tick++ +} +``` + +Non-fastest tasks just run the body. See Phase 7 for the full wire-up. + +## Files Created / Modified + +| File | Action | +|------|--------| +| `core/src/plc_app/plc_state_manager.c` | Rewritten – thread-per-task spawning + per-thread crash handler | +| `core/src/plc_app/plc_state_manager.h` | Modified – `PlcTaskCtx`, exports | +| `core/src/plc_app/utils.c` / `.h` | Modified – `install_per_thread_crash_handlers`, `lock_memory`, TLS for per-task ctx | +| `core/src/plc_app/image_tables.c` | Modified (in Phase 5) – walks `locatedVars[]` directly | + +## Testing Strategy + +1. **Single-task program**: spawns one thread, runs at the declared interval. + Validate `pthread_getschedparam` returns `SCHED_FIFO` and the right priority. +2. **Two-task program (10 ms / 100 ms, priorities 50 / 30)**: both threads tick + at their declared intervals (within ±10% over a 60-second window). +3. **Priority preemption**: induce a 5-ms busy loop in the low-priority task; + verify the high-priority task still meets its deadline. Compare against a + non-RT control by running with `OPENPLC_DISABLE_TASK_AFFINITY=1` and + without the `CAP_SYS_NICE` capability. +4. **Per-thread crash**: deliberately divide-by-zero in task 1; verify task 1 + thread exits cleanly via the `siglongjmp`, the runtime transitions to + `PLC_STATE_ERROR`, and no other thread is stuck holding `buffer_mutex`. +5. **Watchdog**: sleep task 0 for 30 seconds inside the program; verify the + watchdog transitions to `PLC_STATE_ERROR` and reports task 0 by name. +6. **Stop responsiveness**: while running with a 1000 ms task, call + `stop_plc_program()`; verify the join completes in < 1100 ms (one period). +7. **macOS sandbox testing**: SCHED_FIFO and `pthread_setname_np` aren't + available on macOS. Wrap them in `#ifdef __linux__` so the file at least + compiles syntactically on macOS for development. diff --git a/docs/strucpp-migration/07-runtime-v4-plugin-and-io.md b/docs/strucpp-migration/07-runtime-v4-plugin-and-io.md new file mode 100644 index 000000000..05db5424c --- /dev/null +++ b/docs/strucpp-migration/07-runtime-v4-plugin-and-io.md @@ -0,0 +1,285 @@ +# Phase 7: Housekeeping on the Fastest IEC Task + +> **Revision history.** +> +> 1. *First draft.* This slot used to host "Native hierarchical debug +> handler" — work that got folded into Phase 5 once Arduino shipped +> with hierarchical addressing on day one. +> 2. *Second draft.* Repurposed for "Plugin & I/O Coordination" with two +> options: **Option A** "ride the highest-priority IEC task" and +> **Option B** "dedicated coordinator thread behind an env flag". +> Default was Option A — task 0's thread also drove +> `journal_apply_and_clear`, plugin `cycle_start`/`cycle_end`, and +> `updateTime`. +> 3. *Third draft.* Replaced Option A/B with **per-plugin worker +> threads** owning their own priority and cycle interval via plugin +> config. Each IEC task drained the journal independently. +> 4. **Current draft.** Unwound the plugin-worker-threads idea. The +> smallest possible drift from the MatIEC-era runtime is "one thread +> per IEC task, with the *fastest* one playing the role the +> single-thread runtime's PLC thread used to play". The fastest task +> drives `journal_apply_and_clear`, plugin `cycle_start`/`cycle_end`, +> `updateTime`, and `tick__++` — same calls, same order, same +> cadence the single-thread runtime had. No plugin worker threads. +> No per-plugin config additions. Single-task projects are +> behaviorally identical to the MatIEC era. + +## Goal + +Reproduce the MatIEC-era housekeeping schedule (one drain per scan, one +plugin cycle per scan, one `updateTime` per scan, one tick increment per +scan) on top of the thread-per-task model from Phase 6, by anchoring all +of it on the **fastest** IEC task's thread. + +## Why "Fastest" Not "Highest Priority" + +The single-thread runtime ran one scan at the GCD interval of all +declared tasks — i.e., at the *highest cadence* anybody asked for. +That's what plugins and I/O are designed around: data flows in and out +at scan rate, which is the highest rate of any user task. + +Highest *priority* and highest *frequency* are usually the same task +(fast control loops are also typically declared with high priority for +jitter reasons), but they don't have to be. If they diverge, it's +frequency that matters for I/O — not priority. Anchoring on the +fastest-cadence task gives plugins exactly the tick rate they used to +have. + +## Fastest-Task Selection + +The runtime, after walking the configuration via virtual dispatch, picks +one task to mark as "fastest": + +1. The task with the smallest positive `interval_ns` wins. +2. If multiple tasks tie on `interval_ns`, the one with the highest + `priority` wins. +3. If they also tie on priority, declaration order breaks the tie (the + first one STruC++ emits in `ConfigurationInstance` wins). + +Concretely: + +```cpp +// In plc_state_manager.cpp, right before spawning task threads: + +PlcTaskCtx* fastest = nullptr; +for (size_t i = 0; i < plc_task_count; ++i) { + PlcTaskCtx* c = &plc_tasks[i]; + if (!fastest || + c->interval_ns < fastest->interval_ns || + (c->interval_ns == fastest->interval_ns && + c->priority > fastest->priority)) { + fastest = c; + } +} +fastest->is_fastest_task = true; +log_info("Anchoring housekeeping on task %s (interval=%lld ns, priority=%d)", + fastest->name, (long long)fastest->interval_ns, fastest->priority); +``` + +Single-task projects: that one task is automatically the fastest. Its +thread does everything the single PLC thread used to do. + +## What the Fastest Task's Thread Looks Like + +```cpp +while (plc_get_state() == PLC_STATE_RUNNING) { + /* Phase 8 codegen emits IMAGE_TABLES_LOCK_GUARD()/GLOBAL_VARS_LOCK_GUARD() + * inside the task body (around individual variable accesses or around the + * whole body, depending on the precision of the sharedness analysis). + * + * The runtime ALSO needs the image-tables lock for the housekeeping window + * — journal apply + plugin hooks + updateTime — because they all touch + * the same image-table buffers as the body. That outer lock uses the + * SAME mutex Phase 8 emits against (recursive PI mutex), so a body that + * re-locks during run_task is a quick lock-counter increment. */ + + plc_image_tables_lock(); // outer: held across the whole window + scan_cycle_time_start(); + + /* Housekeeping pre */ + journal_apply_and_clear(); + plugin_driver_cycle_start(plugin_driver); + + /* Body — the fastest task's IEC code */ + ext_strucpp_run_task(ctx->idx); + + /* Housekeeping post */ + ext_updateTime(); + plugin_driver_cycle_end(plugin_driver); + ++tick__; + atomic_store(&plc_heartbeat, time(NULL)); + + scan_cycle_time_end(); + plc_image_tables_unlock(); + + atomic_store_explicit(&ctx->heartbeat, (long)time(NULL), + memory_order_relaxed); + atomic_fetch_add_explicit(&ctx->local_tick, 1, + memory_order_relaxed); + + /* Sleep until next absolute deadline — same as Phase 6 */ + next_wakeup += ctx->interval_ns; + clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &next_wakeup, NULL); +} +``` + +## What Non-Fastest Tasks Do + +```cpp +while (plc_get_state() == PLC_STATE_RUNNING) { + /* No journal drain, no plugin hooks, no updateTime, no tick++. + * Just take the lock (or whatever Phase 8 codegen emits) and run the + * body. The lock is held briefly because the body is the only thing + * that touches shared state. */ + + ext_strucpp_run_task(ctx->idx); + + atomic_store_explicit(&ctx->heartbeat, (long)time(NULL), + memory_order_relaxed); + atomic_fetch_add_explicit(&ctx->local_tick, 1, + memory_order_relaxed); + + /* Sleep until next absolute deadline */ + next_wakeup += ctx->interval_ns; + clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &next_wakeup, NULL); +} +``` + +The non-fastest task's lock acquisition is whatever Phase 8 emits +inside the task body (`IMAGE_TABLES_LOCK_GUARD()` / +`GLOBAL_VARS_LOCK_GUARD()`). It contends with the fastest task's outer +lock, so during the fastest task's housekeeping + body window, slower +tasks block on the mutex. After the fastest task releases, the slower +task's lock guard succeeds and it runs. + +## Why This Doesn't Cause "Stale Reads" for Slower Tasks + +The fastest task drains the journal every cycle. Plugin writes are +applied to image tables every fastest-task cycle. By the time a slower +task wakes up and runs, the image tables already reflect the most +recent plugin writes (give or take one fastest-task cycle, which is by +definition the smallest interval in the system). + +For a 10 ms / 100 ms task pair: the slow task sees plugin data that's +at most 10 ms stale, every 100 ms when it runs. That's strictly better +than the MatIEC-era runtime, where the slow task would see data drained +once per 10 ms scan but only get to *act* on it every 100 ms anyway. + +## Why This Doesn't Need a Per-Plugin Config + +Plugins continue to expose `cycle_start` and `cycle_end`. The runtime +calls them at the fastest IEC task's cadence, which is the same rate +they used to be called at. No `cycle_interval_ns`, no `rt_priority`, +no `cpu_affinity` per plugin — there is nothing to schedule +separately. EtherCAT, Modbus master, S7Comm: they all keep their +existing implementations. + +The only plugin behavior that changes is for plugins that internally +spawn their own threads (EtherCAT's monitor thread is the canonical +example). Those keep doing what they always did. The runtime doesn't +spawn anything *for* them. + +## What if the User Wants Plugins at a Different Cadence? + +The user creates an IEC task at the desired cadence. If the user wants +EtherCAT to tick at 1 ms but their main control loop is 10 ms, they +declare a 1 ms task — even an empty one — and the housekeeping +naturally moves to it. This is a deliberate design choice: the user +controls everything from one place (the `.st` file), and the runtime +has no separate scheduler to configure. + +## Watchdog + +The watchdog continues to track per-task heartbeats from Phase 6. The +fastest task's heartbeat doubles as the "I/O alive?" signal because +that's the thread doing the I/O work. There is no longer a separate +"plugin heartbeat" — there are no plugin worker threads to track. + +```c +/* Watchdog logic — slight simplification of revision 3 */ +for (size_t i = 0; i < plc_task_count; ++i) { + long lag = now - atomic_load(&plc_tasks[i].heartbeat); + if (lag > WATCHDOG_TASK_TIMEOUT_S) { + log_error("watchdog: task %s stalled (%lds since heartbeat)", + plc_tasks[i].name, lag); + plc_force_error_state(); + } +} +``` + +If the fastest task hangs (e.g., a plugin's `cycle_start` deadlocks), +its heartbeat goes silent, and the watchdog reports it by name. No +distinction between "the plugin is stuck" and "the task body is stuck" +— both manifest as the same task heartbeat going silent, and both +require an upload-correct-program response from the operator. + +## Difference Tally vs. Revision 3 + +| Aspect | Revision 3 (plugin worker threads) | Revision 4 (fastest task anchor) | +|---|---|---| +| Plugin scheduling | Each plugin gets its own pthread | None — plugins called from fastest IEC task | +| Plugin config schema | Adds `cycle_interval_ns`, `rt_priority`, `cpu_affinity` per plugin | Unchanged from MatIEC era | +| Number of threads | N IEC tasks + M plugins + bootstrap | N IEC tasks + bootstrap | +| Single-task project behavior | Different from MatIEC (plugin runs on its own thread) | **Identical to MatIEC** | +| Journal drain | Each task drains independently | Only fastest task drains | +| `updateTime` ownership | Per-task (each increments by its own interval) | Fastest task only — same cadence as MatIEC era | +| `tick__` semantics | Per-task local tick + global atomic | Fastest task increments once per its cycle — same as MatIEC era | +| Watchdog | Per-task + per-plugin heartbeats | Per-task heartbeats only | + +The "drift from MatIEC" budget is much smaller in revision 4. The price +is that plugins are forever tied to the fastest IEC task's cadence; if +that's a problem for some future plugin, the user creates a fast +empty task to anchor it. The benefit is far less moving machinery. + +## Lock Ordering + +Phase 8 emits two macros: `IMAGE_TABLES_LOCK_GUARD()` and +`GLOBAL_VARS_LOCK_GUARD()`. The fastest task's housekeeping window also +needs the image-tables lock. Both runtime-side and codegen-side acquire +locks in the same canonical order: + +1. **Image-tables lock first** +2. **Globals lock second** + +Codegen always emits in this order; the runtime's housekeeping wrapper +takes the image-tables lock only (the fastest task's body itself +re-acquires recursively if needed, plus the globals lock if needed). +Same order on every site means no AB/BA deadlock is possible. + +Both mutexes are recursive priority-inheriting `pthread_mutex_t` +(initialized with `PTHREAD_MUTEX_RECURSIVE` + `PTHREAD_PRIO_INHERIT`), +so re-locking by a thread that already holds the lock (the fastest +task's body inside the housekeeping window) is a quick counter +increment. See Phase 8 for full details. + +## Files Created / Modified + +| File | Action | +|------|--------| +| `core/src/plc_app/plc_state_manager.cpp` | Add `is_fastest_task` field to `PlcTaskCtx`; pick the fastest task before spawning; the per-task thread function branches on it for the housekeeping window | +| `core/src/plc_app/plc_io_cycle.{h,cpp}` | **Re-introduce** (we deleted them in revision 3): `plc_run_io_cycle_pre()` does `journal_apply_and_clear` + `plugin_driver_cycle_start`; `plc_run_io_cycle_post()` does `updateTime` + `plugin_driver_cycle_end` + heartbeat + `tick__++`. Same shape as the second-revision draft, called only by the fastest task's thread | +| `core/src/plc_app/plc_state_manager.h` | Add `is_fastest_task : bool` to `PlcTaskCtx` | +| `core/src/drivers/plugin_driver.{h,c}` | **No changes for plugin scheduling.** (Plugins still register `cycle_start`/`cycle_end` the way they always did.) | +| `core/src/plc_app/utils/watchdog.c` | Drop per-plugin heartbeat scan added in revision 3; per-task is sufficient | +| `plugins.conf` (or per-plugin configs) | **No new fields.** Revert revision 3's `cycle_interval_ns` / `rt_priority` / `cpu_affinity` per-plugin schema | + +## Testing Strategy + +1. **Single-task project parity**: identical user `.st`, identical + plugin configs. Runtime v4 (single-thread) vs runtime v4 (this + phase) produce same observable behavior on a 30-minute soak — same + plugin call cadence, same `tick__` rate, same I/O latency. +2. **Two-task project, fastest selection**: declare 10 ms / 100 ms. + Verify the runtime log says "Anchoring housekeeping on task <10ms + one>". Plugins tick at 100 Hz (the 10 ms cadence), not at 10 Hz. +3. **Tied intervals, priority breaks tie**: declare two tasks at 10 ms + with priorities 80 and 30. The 80-priority one is the anchor. +4. **Plugin tick parity**: a counting plugin that increments a counter + in `cycle_start`. After 10 seconds, with a 10 ms fastest task, the + counter reads 1000 ± a few. Same as MatIEC era. +5. **Slower task non-stall**: 10 ms task takes 5 ms of CPU; 100 ms + task takes 80 ms of CPU. Both meet their deadlines (10 ms cycle has + 5 ms slack; 100 ms cycle has 20 ms slack). +6. **Plugin in fastest task's hot path**: deliberate `sleep(30)` in a + plugin's `cycle_start`. Watchdog reports `task stalled` + and forces ERROR within `WATCHDOG_TASK_TIMEOUT_S`. diff --git a/docs/strucpp-migration/08-strucpp-codegen-runtime-extensions.md b/docs/strucpp-migration/08-strucpp-codegen-runtime-extensions.md new file mode 100644 index 000000000..86b1c65fa --- /dev/null +++ b/docs/strucpp-migration/08-strucpp-codegen-runtime-extensions.md @@ -0,0 +1,564 @@ +# Phase 8: STruC++ Codegen Runtime Extensions + +> **New phase** added during the implementation review. Phase 6 and 7 +> exposed two STruC++-side gaps: +> +> 1. The runtime needs **granular synchronization** around image-table +> and global-variable access, but coarse `buffer_mutex` defeats +> multi-core parallelism. STruC++ is the right place to emit the +> locking — it's the only layer that knows which variables are +> shared. Solution: a `IMAGE_TABLES_LOCK_GUARD()` macro emitted at +> codegen, no-op on Arduino, RAII lock guard on Linux. +> 2. The runtime needs **per-task CPU affinity** but the user has no way +> to express it today. Solution: a new optional `CPU_AFFINITY` +> parameter on `TASK` declarations, stored in `TaskInstance` and +> applied by the runtime when non-zero. + +## Goal + +Extend STruC++'s codegen so the runtime side can ship granular +synchronization and user-defined CPU affinity without per-platform +forks of the generated code. Same `generated.cpp/hpp` runs unmodified +on Arduino (no threads, no affinity, the macros and accessors expand to +nothing) and on Linux (full locking and affinity). + +## Prerequisites + +- Phase 5 (runtime → C++) — informs the lock-guard expansion target +- Phase 6 (thread-per-task) — the consumer of `TaskInstance::cpu_affinity_mask` +- Phase 7 (plugin worker threads) — also consumes + `IMAGE_TABLES_LOCK_GUARD()` from plugin code + +## Part A: `IMAGE_TABLES_LOCK_GUARD()` Codegen Macro + +### What gets locked + +There are exactly two categories of state that cross thread boundaries +between IEC tasks and plugin workers: + +1. **Located variables** (`%IX`, `%IW`, `%QX`, `%QW`, `%MW`, `%MD`, + `%MX`, etc.) — written by plugins, read by user code; or written by + user code, read by plugins. +2. **Global variables** (`VAR_GLOBAL` declared at CONFIGURATION / + RESOURCE level, accessed via `VAR_EXTERNAL`) — potentially shared + between any two tasks that reference them. + +Local task-internal variables, function-block instance state, and +function parameters are **not** shared and need no locking. + +### The macros + +STruC++ emits two macros at codegen sites that touch shared state: + +- `IMAGE_TABLES_LOCK_GUARD()` — locks the image-tables resource +- `GLOBAL_VARS_LOCK_GUARD()` — locks the globals resource + +Both live in a strucpp runtime header (`iec_threading.hpp`): + +```cpp +// iec_threading.hpp — strucpp runtime header + +#pragma once + +#if defined(STRUCPP_THREADING) // defined by compile.sh on Linux + #include + + namespace strucpp { + // Pointers to mutexes OWNED BY THE RUNTIME. The runtime calls + // strucpp_set_locks() right after dlopen to plumb them in. + // Plain pthread_mutex_t (not std::mutex) so we can use + // PTHREAD_PRIO_INHERIT + PTHREAD_MUTEX_RECURSIVE. + extern pthread_mutex_t* g_image_tables_mutex_ptr; + extern pthread_mutex_t* g_global_vars_mutex_ptr; + + struct ImageTablesLockGuard { + pthread_mutex_t* m; + ImageTablesLockGuard() : m(g_image_tables_mutex_ptr) { + if (m) pthread_mutex_lock(m); + } + ~ImageTablesLockGuard() { + if (m) pthread_mutex_unlock(m); + } + ImageTablesLockGuard(const ImageTablesLockGuard&) = delete; + ImageTablesLockGuard& operator=(const ImageTablesLockGuard&) = delete; + }; + + struct GlobalVarsLockGuard { + pthread_mutex_t* m; + GlobalVarsLockGuard() : m(g_global_vars_mutex_ptr) { + if (m) pthread_mutex_lock(m); + } + ~GlobalVarsLockGuard() { + if (m) pthread_mutex_unlock(m); + } + GlobalVarsLockGuard(const GlobalVarsLockGuard&) = delete; + GlobalVarsLockGuard& operator=(const GlobalVarsLockGuard&) = delete; + }; + } + + #define IMAGE_TABLES_LOCK_GUARD() \ + ::strucpp::ImageTablesLockGuard _strucpp_itlg_ + #define GLOBAL_VARS_LOCK_GUARD() \ + ::strucpp::GlobalVarsLockGuard _strucpp_gvlg_ + +#else + // Arduino (and any other single-threaded target): zero overhead. + // Same source compiles unchanged. + #define IMAGE_TABLES_LOCK_GUARD() ((void)0) + #define GLOBAL_VARS_LOCK_GUARD() ((void)0) +#endif +``` + +`STRUCPP_THREADING` is defined by `compile.sh` on Linux and not on +Arduino. The same `generated.cpp` ships everywhere. + +### One mutex per resource — no duplicates + +There is **one** image-tables mutex in the system, **one** globals +mutex. Both are owned by the runtime (initialized with priority +inheritance and recursion via `init_rt_mutex()`-style helpers). The .so +borrows pointers to them via the `strucpp_set_locks()` setter the .so +exposes: + +```cpp +// runtime_v4_entry.cpp — runtime-side shim, in openplc-runtime +// +// In addition to strucpp_get_config(), the shim exports a setter the +// runtime calls right after dlopen to wire the resource mutexes in: + +#include "iec_threading.hpp" + +namespace strucpp { + pthread_mutex_t* g_image_tables_mutex_ptr = nullptr; + pthread_mutex_t* g_global_vars_mutex_ptr = nullptr; +} + +extern "C" void strucpp_set_locks(pthread_mutex_t* image_tables, + pthread_mutex_t* global_vars) { + strucpp::g_image_tables_mutex_ptr = image_tables; + strucpp::g_global_vars_mutex_ptr = global_vars; +} +``` + +The runtime, in `image_tables_bind_located_vars()` or earlier in the +load sequence, dlsyms `strucpp_set_locks` and calls it with pointers to +the runtime's existing `buffer_mutex` (image tables) and a new +`global_vars_mutex` (introduced in this phase, lives next to +`buffer_mutex` in the plugin driver or `plc_state_manager`). + +Result: the same mutex object is locked from both sides — codegen-emitted +guards inside user code and runtime-side housekeeping wrappers — no +risk of two threads thinking they're protected when they're locking +different objects. + +### Why pthread_mutex_t and not std::mutex + +The runtime needs **priority-inheriting** mutexes for jitter-bounded RT +scheduling, and **recursive** mutexes so the fastest-task housekeeping +window can hold the lock across `cycle_start` + body + `cycle_end` +without the body's codegen-emitted guard deadlocking on its own thread. +`std::mutex` exposes neither attribute portably; the underlying +`pthread_mutex_t` does: + +```c +pthread_mutexattr_t attr; +pthread_mutexattr_init(&attr); +pthread_mutexattr_setprotocol(&attr, PTHREAD_PRIO_INHERIT); +pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); +pthread_mutex_init(&buffer_mutex, &attr); +pthread_mutexattr_destroy(&attr); +``` + +The lock guards above use the raw pthread API directly. Same RAII +properties, just no `std::mutex` wrapper. + +### RAII vs paired macros + +The user originally proposed a paired `CAPTURE_IMAGE_TABLES_MUTEX()` / +`RELEASE_IMAGE_TABLES_MUTEX()` shape. RAII is preferred because: + +- It can't leak the lock on an early return / exception / longjmp out + of the task body (and the runtime's per-thread crash handler does + exactly that). +- It compiles to identical machine code under `-O2` (the destructor is + inlined and reduces to a single call to `pthread_mutex_unlock` on + scope exit). +- It's a single line at the codegen site instead of two, simplifying + the codegen. + +For users who really need manual capture/release semantics (e.g., to +release the lock before a long blocking operation inside a task body), +STruC++ can still emit: + +```cpp +::strucpp::g_image_tables_mutex.lock(); +// ... stuff ... +::strucpp::g_image_tables_mutex.unlock(); +``` + +…but the default at codegen is RAII. + +### Granularity decision + +**Per-task-body, not per-access.** Three reasons: + +1. **Performance.** A loop reading `%IW0` 1000 times in a task body + would take/release the lock 1000 times under per-access locking. The + serialization is irrelevant (it's the same thread holding the lock + each time), but the atomic operations add up. +2. **Correctness.** Per-access locking gives a sequence of + "atomic single-variable accesses" but the task body's logic spans + multiple variables — the user's intent is "this scan's view of the + image table is consistent". Holding the lock for the body provides + that. +3. **Static analysis is cheap.** STruC++ already knows during + `generateProgramImplementation` which variables a task body touches. + Emitting a single `IMAGE_TABLES_LOCK_GUARD()` at the top of the body + when the task touches anything shared, and emitting nothing + otherwise, is a one-line change at codegen. + +Concretely, the codegen emits one or both guards based on what the +task body touches: + +```cpp +// Body that touches BOTH image tables and globals: +void Program_MAIN::run() { + IMAGE_TABLES_LOCK_GUARD(); // canonical order: image-tables first + GLOBAL_VARS_LOCK_GUARD(); // canonical order: globals second + // ... reads %IW0, writes GLOBAL_COUNTER ... +} + +// Body that touches ONLY image tables: +void Program_IO_ONLY::run() { + IMAGE_TABLES_LOCK_GUARD(); + // ... %IW0, %QX0.0, %MW10 ... +} + +// Body that touches ONLY globals: +void Program_LOGIC_ONLY::run() { + GLOBAL_VARS_LOCK_GUARD(); + // ... GLOBAL_STATE := GLOBAL_FLAG ... +} + +// Body that touches NEITHER — no guard, runs fully lock-free +void Program_PURE_COMPUTE::run() { + // ... only local variables and FB internals ... +} +``` + +Tasks with no shared access run **fully lock-free** in parallel on +multi-core. That's the whole point of granular locking. + +Phase 7's housekeeping wrapper (the fastest task's `plc_run_io_cycle_pre` ++ `plc_run_io_cycle_post`) takes only the image-tables lock — it +doesn't touch globals. If the fastest task's body also has a +`GLOBAL_VARS_LOCK_GUARD()`, that guard is acquired AFTER the +image-tables one (canonical order preserved across the +runtime+codegen boundary). + +The journal-drain call lives inside the runtime's housekeeping wrapper, +not inside generated code, but it runs under the same image-tables +mutex the codegen guards lock against — so plugin writes drained from +the journal land in the image table while no other task body can be +mid-read. + +### Plugin-side use + +Plugins call `cycle_start` / `cycle_end` from the fastest IEC task's +thread (Phase 7 anchor). The fastest-task thread holds the +image-tables lock around the housekeeping window, so plugin hooks run +with the lock already taken. Plugins that want to additionally grab the +lock from internal threads (e.g., EtherCAT's monitor thread) include +`iec_threading.hpp` and use `IMAGE_TABLES_LOCK_GUARD()` directly — +same primitive, same mutex object, recursive PI semantics let them +re-enter safely. + +### Lock ordering + +When a task body touches both image tables and globals, codegen emits +the guards in **canonical order**: + +1. `IMAGE_TABLES_LOCK_GUARD()` first +2. `GLOBAL_VARS_LOCK_GUARD()` second + +```cpp +void Program_MAIN::run() { + IMAGE_TABLES_LOCK_GUARD(); // image-tables first + GLOBAL_VARS_LOCK_GUARD(); // globals second + // ... body ... +} +``` + +Same order on every site means no AB/BA deadlock is possible. The +runtime's housekeeping wrapper (Phase 7's `plc_run_io_cycle_pre/post`) +takes only the image-tables lock — it doesn't touch globals. The body +inside the housekeeping window may re-acquire the image-tables lock +recursively (cheap) and may also acquire the globals lock — all in the +same canonical order. + +### Globals mutex: single vs per-variable + +The image-tables mutex is the runtime's existing one — there's no +choice about its granularity. The globals mutex is new with this phase, +and there's a real decision to make about it. + +| Approach | Pros | Cons | +|---|---|---| +| **Single mutex for all globals** *(recommended for first cut)* | Simple. No lock ordering, no memory bloat (one mutex regardless of project size). Identical pattern to the image-tables mutex. | All globals access serializes through one lock. Two tasks that touch *different* globals at the same instant block each other. | +| **One mutex per global variable** | True parallelism: tasks accessing disjoint globals don't contend. | Memory: ~40 bytes per `pthread_mutex_t` × N globals = noticeable bloat for projects with many globals. Lock ordering: codegen must enumerate every global a task touches and lock in canonical (e.g., address-order) sequence to avoid deadlock. Static analysis must be **precise** — a false negative (failing to enumerate a touched global) becomes a data race. | +| **One mutex per RESOURCE** | Cheap (typically 1–4 mutexes per project). Resource-scoped globals are independent by definition; CONFIGURATION-scoped globals fall into a single shared-mutex bucket. | Codegen complexity: a task that references a CONFIGURATION-level global plus a RESOURCE-level global must lock two mutexes in canonical order. | + +**Recommendation: start with a single globals mutex.** Most PLC programs +declare a small number of globals, and accesses to them are bursty and +brief — the lock is held for microseconds at a time. If profiling on a +real workload identifies the globals mutex as a contention bottleneck, +the per-resource approach is a small follow-up; the per-variable +approach is a much larger investment that should not be paid until +measurements demand it. + +The doc and codegen below assume the single-mutex approach. The +`g_global_vars_mutex_ptr` symbol stays the same regardless of +granularity choice; only the runtime's mutex storage and the codegen's +lock-emission policy change. + +### The "shared variable" analysis + +STruC++ marks a variable as shared if any of: + +- It is a located variable (`AT %...`). +- It is declared `VAR_GLOBAL` at CONFIGURATION or RESOURCE scope. +- It is referenced via `VAR_EXTERNAL` from a program. + +A task body is "lockable" (gets the macro emitted) if: + +- It writes or reads any variable in the shared set, OR +- It calls a function or function block whose body transitively does so. + +Transitive analysis follows STruC++'s existing call graph; this is +already maintained for type-checking and dead-code elimination. + +False positives (emitting the lock guard when not strictly needed) are +acceptable. False negatives (failing to emit when needed) are bugs and +the analysis errs on the conservative side: "if STruC++ can't prove a +function is shared-free, treat as shared". + +### Wire-format / ABI considerations + +The macro is a compile-time decision. There is no runtime negotiation — +the .so either has the lock guards baked in (when compiled with +`STRUCPP_THREADING`) or doesn't. The runtime expects them to be there; +if a `.so` compiled without `STRUCPP_THREADING` is loaded into the +threaded runtime, races are possible. `compile.sh` always defines +`STRUCPP_THREADING` for the v4 target, so this is a contract violation +that can't happen in practice. + +The lock guards are NULL-pointer-safe at the per-instance level — +`ImageTablesLockGuard` constructed before `strucpp_set_locks()` runs +sees a null `m` and skips both the lock and unlock. This is mostly a +defense for tests / harnesses that load the .so without going through +the full runtime initialization path. In production the runtime always +calls `strucpp_set_locks` before any task thread starts. + +## Part B: `CPU_AFFINITY` on `TASK` Declarations + +### Syntax extension + +Add an optional `CPU_AFFINITY` parameter to `TASK` declarations: + +```iec +TASK FastTask (INTERVAL := T#10ms, PRIORITY := 80, CPU_AFFINITY := 16#03); +TASK SlowTask (INTERVAL := T#100ms, PRIORITY := 30); (* no affinity — kernel decides *) +``` + +`CPU_AFFINITY` is a `WORD`/`DWORD`/`LWORD` bitmask, one bit per CPU. +Bit 0 = CPU 0, bit 1 = CPU 1, etc. Up to 64 bits supported (the runtime +only consumes up to `CPU_SETSIZE`, but 64 covers all realistic targets). + +When omitted, the value defaults to **0**, which the runtime +interprets as "no pinning, kernel decides" — the previous Phase 6 +revision's hardcoded round-robin pinning is gone. + +### Parser change + +STruC++'s `TASK` parser already accepts `INTERVAL` and `PRIORITY`. Add +`CPU_AFFINITY` as a third optional parameter, accepting a hex/decimal +literal. + +The grammar addition is local: the existing `TaskParameters` rule gets +an additional alternative. No type-checker changes are needed beyond +"must be an integer literal that fits in 64 bits". + +### `TaskInstance` ABI + +```cpp +// strucpp/runtime/include/iec_std_lib.hpp + +struct TaskInstance { + const char* name; + int64_t interval_ns; + int32_t priority; + ProgramBase** programs; + size_t program_count; + uint64_t cpu_affinity_mask; // NEW — 0 means kernel decides +}; +``` + +Adding a field at the end of the struct is ABI-compatible with existing +runtimes: `Configuration` constructors that don't initialize it leave it +zero (struct default-init), which the runtime correctly interprets as +"no affinity". This means existing Arduino projects and any v4 .so +built before this change continue to work. + +### Codegen + +In the `Configuration_*` constructor, STruC++ already initializes each +`TaskInstance`. Add the affinity: + +```cpp +tasks_storage[0] = TaskInstance( + "FASTTASK", // name + 10000000LL, // interval (T#10ms) + 80, // priority + &task_programs_storage[0], + 1, // program_count + 0x03ULL // NEW — cpu_affinity (16#03 = bits 0+1) +); +``` + +When `CPU_AFFINITY` is omitted from the source, codegen emits `0ULL` for +the field. + +### Runtime accessor + +The runtime reads `task.cpu_affinity_mask` directly via virtual dispatch +on `ConfigurationInstance*`. There is **no** new C-linkage accessor — +this is consistent with Phase 5's "walk the configuration directly" +philosophy. + +The Phase 6 task-thread code branches on the mask: + +```cpp +if (task->cpu_affinity_mask != 0) { + cpu_set_t cs; + CPU_ZERO(&cs); + for (int cpu = 0; cpu < 64 && cpu < CPU_SETSIZE; ++cpu) { + if (task->cpu_affinity_mask & (1ULL << cpu)) CPU_SET(cpu, &cs); + } + if (pthread_setaffinity_np(pthread_self(), sizeof cs, &cs) != 0) { + log_warn("[task %s] pthread_setaffinity_np failed: %s", + task->name, strerror(errno)); + } +} +// else: no syscall, kernel scheduler decides freely. +``` + +## Editor (Resource Screen) — Future, Not Required + +The runtime works as soon as STruC++ supports `CPU_AFFINITY` in the +parser. Editor UI to set affinity per task on the Resource configuration +screen is a follow-up; users who need it before the UI lands can edit +the `.st` directly. + +## Sharedness Analysis Pseudocode + +The analysis classifies each task body into one of four buckets: +**neither**, **image-tables-only**, **globals-only**, **both**. +Different buckets get different macros emitted. + +``` +image_table_vars = { every located variable in the project } +global_vars = { every VAR_GLOBAL at CONFIGURATION or RESOURCE scope } + +# Forward-resolve VAR_EXTERNAL references back to their owning VAR_GLOBAL. + +for each function or function block FB: + FB.touches_image_tables = false + FB.touches_globals = false + for each statement in FB: + if statement reads/writes any var in image_table_vars: + FB.touches_image_tables = true + if statement reads/writes any var in global_vars: + FB.touches_globals = true + for each callee of FB (transitively, until fixed point): + FB.touches_image_tables ||= callee.touches_image_tables + FB.touches_globals ||= callee.touches_globals + +for each program/task body P: + if P.touches_image_tables: emit IMAGE_TABLES_LOCK_GUARD() at top of run() + if P.touches_globals: emit GLOBAL_VARS_LOCK_GUARD() at top of run() + # Order matters: image-tables guard before globals guard. ALWAYS. +``` + +The fixed-point iteration over the call graph terminates because the +graph is acyclic for ST programs (no recursion in IEC 61131-3) plus the +function-block call graph forms a DAG. + +For first-cut implementation, a coarser approximation is acceptable: +"emit BOTH `IMAGE_TABLES_LOCK_GUARD()` and `GLOBAL_VARS_LOCK_GUARD()` +for every task body unconditionally". This is correct (just +over-locking) and lets the runtime side ship before the precise +analysis is done. The cost is minor — locks are per-task and held +briefly. The precise analysis is a perf optimization that lands later +without changing the wire ABI. + +## Files Modified (STruC++ side) + +| File | Action | +|------|--------| +| `src/parser/parser.ts` (or wherever the `TASK` parameter rule lives) | Accept `CPU_AFFINITY := ` as an optional third parameter | +| `src/project-model.ts` (or equivalent) | Add `cpuAffinityMask: bigint` to the task model; default 0 | +| `src/backend/codegen.ts` | Emit `cpu_affinity_mask` in `TaskInstance` constructor argument list (always — defaults to 0 when omitted) | +| `src/backend/codegen.ts` | Run sharedness analysis; emit `IMAGE_TABLES_LOCK_GUARD()` and `GLOBAL_VARS_LOCK_GUARD()` at the top of each task body in canonical order (image-tables first, globals second) — or unconditionally emit both in first-cut mode | +| `src/runtime/include/iec_std_lib.hpp` | Add `cpu_affinity_mask` field to `TaskInstance` struct (at the end, ABI-compatible) | +| `src/runtime/include/iec_threading.hpp` | **New** — declares `g_image_tables_mutex_ptr` / `g_global_vars_mutex_ptr` (extern); defines `ImageTablesLockGuard` / `GlobalVarsLockGuard` and the corresponding macros under `STRUCPP_THREADING`; macros expand to `((void)0)` otherwise | +| `src/runtime/include/iec_std_lib.hpp` | `#include "iec_threading.hpp"` so generated code picks up the macros automatically | + +## Files Modified (runtime / editor side) + +| File | Action | +|------|--------| +| `openplc-runtime/scripts/compile.sh` | Add `-DSTRUCPP_THREADING=1` to the C++ flags so the macros expand | +| `openplc-runtime/core/strucpp_runtime/runtime_v4_entry.cpp` | Define `strucpp::g_image_tables_mutex_ptr` / `g_global_vars_mutex_ptr` storage; export `extern "C" void strucpp_set_locks(pthread_mutex_t*, pthread_mutex_t*)` setter | +| `openplc-runtime/core/src/plc_app/plc_state_manager.cpp` | Initialize a new `global_vars_mutex` (recursive PI mutex) alongside the existing `buffer_mutex` (image tables); after dlopen, dlsym `strucpp_set_locks` and pass both pointers in. Phase 6's task thread reads `task->cpu_affinity_mask` and only calls `pthread_setaffinity_np` when non-zero | +| `openplc-runtime/core/src/plc_app/utils/utils.c` | Update `init_rt_mutex()` (or add a sibling) so it can build a recursive PI mutex (existing helper builds non-recursive PI; needs the additional `pthread_mutexattr_settype(... PTHREAD_MUTEX_RECURSIVE)` step) | + +## Testing Strategy + +1. **Lock guard zero-cost on Arduino**: compile a project with + `STRUCPP_THREADING` undefined (Arduino target). Verify `objdump -d` + shows no `pthread_mutex_*` calls or atomic instructions inside task + bodies; both macros must be true no-ops at the assembly level. +2. **Same mutex on both sides on Linux**: harness loads the .so, + confirms `strucpp::g_image_tables_mutex_ptr` (read via dlsym) equals + the address of the runtime's `buffer_mutex` after `strucpp_set_locks` + is called. Same for `g_global_vars_mutex_ptr`. +3. **Image-tables lock correctness**: two tasks write to a shared `%MW` + counter via `IEC_LOC.MW10 := IEC_LOC.MW10 + 1`. 1 M iterations + across both tasks; final value matches expected sum (no torn writes, + no lost updates). +4. **Globals lock correctness**: two tasks bump a `VAR_GLOBAL` counter + the same way. Same expected-vs-actual check. +5. **Lock-ordering soak**: a third task body that touches both image + tables and globals; runs alongside the first two for a long period. + Confirm no AB/BA deadlock under stress. +6. **Lock-free path**: task body that touches no located/global variable + under the precise sharedness analysis. Verify `nm` / `objdump` + confirms no `pthread_mutex_*` calls referenced from that task's + `run()`. +7. **Recursive locking by the fastest task**: under stress, confirm + that the fastest task's `plc_run_io_cycle_pre/post` window holds + the image-tables mutex while the body's + `IMAGE_TABLES_LOCK_GUARD()` re-acquires it; the body completes + without deadlock and lock counter returns to zero on housekeeping + exit. +4. **`CPU_AFFINITY` parsing**: feed STruC++ a `.st` file with + `CPU_AFFINITY := 16#03`; check the generated `TaskInstance` literal + contains `0x3` in the right position. Repeat with no `CPU_AFFINITY` + and verify it emits `0`. +5. **`CPU_AFFINITY` runtime application**: on Linux, declare two tasks + with disjoint affinities (`16#01` for one, `16#02` for the other); + verify with `taskset -p` (or `/proc//status`) that each thread + is pinned to the requested CPU. +6. **`CPU_AFFINITY` default**: declare a task without `CPU_AFFINITY`; + verify the runtime makes no `pthread_setaffinity_np` syscall (e.g., + via `strace -e trace=sched_setaffinity`). diff --git a/docs/strucpp-migration/09-plugin-hierarchical-debug-api.md b/docs/strucpp-migration/09-plugin-hierarchical-debug-api.md new file mode 100644 index 000000000..03e3f9745 --- /dev/null +++ b/docs/strucpp-migration/09-plugin-hierarchical-debug-api.md @@ -0,0 +1,262 @@ +# Phase 9: Plugin Migration to Hierarchical Debug API + +> **New phase** added during the implementation review. Phase 5 deletes +> the legacy flat-index variable API +> (`get_var_count` / `get_var_size` / `get_var_addr` / `get_var_list`) +> from `plugin_runtime_args_t`, which breaks any plugin that consumed +> it. This phase migrates those plugins onto the hierarchical +> `(arr_idx, elem_idx)` API the editor and runtime already speak, +> and re-enables them. + +## Goal + +Migrate every plugin that historically referenced PLC variables by flat +`uint16_t` index onto the same `(arr_idx, elem_idx)` addressing +the editor's debugger uses, with `debug-map.json` providing the +path↔(arr, elem) translation. Once migrated, plugins resume working +under the new runtime without any wrapper layer in between. + +## Prerequisites + +- Phase 5 (runtime → C++; flat-index API removed) — defines what's + being migrated away from +- The editor is already producing `debug-map.json` at compile time + (Phase 4 work) + +## Affected Plugins + +| Plugin | Where it consumed the flat API | Notes | +|---|---|---| +| **OPC UA** (Python, `core/src/drivers/plugins/python/opcua/`) | `opcua_memory.py:get_var_list/get_var_sizes_batch` etc., via the Python `plugin_runtime_args_t` ctypes binding | Primary consumer. Whole point of the plugin: expose all PLC variables to OPC UA clients. | +| Anything else? | Unknown — `safe_buffer_access_refactored.py` and `debug_utils.py` in the shared Python plugin layer also reference `get_var_count` / `get_var_list` / `get_var_size`. Audit needed when work starts. | | + +S7Comm, EtherCAT, Modbus master/slave, etc. operate on **located +variables** through the image-table buffer pointers — they don't go +through the variable-index API at all and are unaffected by this +phase. + +## What the Old API Provided + +```c +// plugin_runtime_args_t (deleted in Phase 5) + +void (*get_var_list) (size_t num_vars, size_t *indexes, void **result); +size_t (*get_var_size) (size_t idx); +uint16_t (*get_var_count)(void); +``` + +Plugins called these with flat `uint16_t` indices and got back raw +pointers into the IECVar's underlying storage (or into MatIEC's +`debug_vars[]` table back in the day). They could then read/write +through those pointers as if they were ordinary PLC variables. + +In the OPC UA flow, the plugin built a `Path → flat_index` map at +startup (the editor used to ship a map file alongside the program), and +each OPC UA client read/write call resolved through that map and into +`get_var_addr`. + +## What the New API Provides + +The runtime exposes the same hierarchical debug surface the editor uses: + +```c +// dlsym'd from the loaded .so: + +uint8_t strucpp_debug_array_count(void); +uint16_t strucpp_debug_elem_count(uint8_t arr); +uint16_t strucpp_debug_size(uint8_t arr, uint16_t elem); +uint8_t strucpp_debug_set(uint8_t arr, uint16_t elem, + bool forcing, + const uint8_t *bytes, uint16_t len); +uint16_t strucpp_debug_read(uint8_t arr, uint16_t elem, uint8_t *dest); +``` + +The path↔(arr, elem) translation lives in `debug-map.json`, generated +by STruC++ at compile time. Schema (informal): + +```json +{ + "version": 2, + "md5": "abc123...", + "typeTags": { "BOOL": 0, "INT": 3, "DINT": 5, ... }, + "leaves": [ + { + "arrayIdx": 0, + "elemIdx": 0, + "path": "MAINPROG.COUNTER", + "type": "INT", + "size": 2 + }, + ... + ] +} +``` + +The plugin reads this file at startup, builds its own +`map` (or `map` if it's +mapping OPC UA NodeIDs etc.), and uses the strucpp_debug_* surface for +every read/write. + +## Plugin Runtime Args — New Surface + +The runtime exposes the strucpp_debug_* helpers to plugins through +function pointers in `plugin_runtime_args_t` so plugins don't have to +dlsym them themselves: + +```c +// plugin_types.h (additions; removed fields shown for context) + +typedef struct { + /* ... existing image-table pointers, mutex, journal helpers ... */ + + /* REMOVED in Phase 5: */ + // void (*get_var_list)(...); + // size_t (*get_var_size)(size_t); + // uint16_t (*get_var_count)(void); + + /* NEW: hierarchical debug surface */ + uint8_t (*debug_array_count)(void); + uint16_t (*debug_elem_count) (uint8_t arr); + uint16_t (*debug_size) (uint8_t arr, uint16_t elem); + uint8_t (*debug_set) (uint8_t arr, uint16_t elem, + bool forcing, const uint8_t *bytes, uint16_t len); + uint16_t (*debug_read) (uint8_t arr, uint16_t elem, uint8_t *dest); + + /* Path to debug-map.json — plugins that need path→(arr, elem) lookup + * read this file themselves. */ + const char *debug_map_path; // typically "./debug-map.json" relative to runtime cwd +} plugin_runtime_args_t; +``` + +The runtime populates `debug_*` pointers with the dlsym'd function +addresses during plugin initialization, and `debug_map_path` from +the build directory layout. + +## Python Plugin Bridge + +The OPC UA plugin is Python; ctypes is the bridge. The shared Python +helpers (`debug_utils.py`, `safe_buffer_access_refactored.py`) wrap the +raw function pointers into pythonic helpers. After migration: + +```python +# Pseudocode for the migrated wrapper + +class HierarchicalDebugAccess: + def __init__(self, args: PluginRuntimeArgs): + self._args = args + with open(args.debug_map_path) as f: + self._map = json.load(f) + self._path_to_addr = { + leaf["path"]: (leaf["arrayIdx"], leaf["elemIdx"]) + for leaf in self._map["leaves"] + } + self._addr_to_size = { + (leaf["arrayIdx"], leaf["elemIdx"]): leaf["size"] + for leaf in self._map["leaves"] + } + + def read_path(self, path: str) -> bytes: + arr, elem = self._path_to_addr[path] + size = self._addr_to_size[(arr, elem)] + buf = (c_uint8 * size)() + n = self._args.debug_read(arr, elem, buf) + return bytes(buf[:n]) + + def write_path(self, path: str, value: bytes, forcing: bool = False): + arr, elem = self._path_to_addr[path] + status = self._args.debug_set(arr, elem, forcing, value, len(value)) + if status != STATUS_OK: + raise RuntimeError(f"debug_set failed: 0x{status:02x}") +``` + +Real implementation needs to handle: + +- Type-aware encoding (an `INT` is 2 bytes little-endian, a `BOOL` is + 1 byte, a `REAL` is 4 bytes IEEE 754, etc.). The `typeTags` table + in `debug-map.json` plus the existing per-tag size handling already + covers this — it's the same logic the editor uses in its debugger. +- MD5 verification: the plugin should compare `debug-map.json`'s + embedded MD5 against the value the runtime returns from FC 0x45 (or + via `plc_program_md5`) to detect stale maps. On mismatch, refuse to + start and log a clear error. +- Reload on program change: the plugin manager already restarts plugins + on program upload; the wrapper just needs to re-read `debug-map.json` + during its `init` callback, not memoize it across uploads. + +## Discovery: What Variables Does the Plugin Expose? + +The OPC UA plugin used to walk the flat index range `[0, +get_var_count())` and add every variable to the OPC UA address space. +With hierarchical addressing, the equivalent walk is over the +`leaves` array in `debug-map.json` — one OPC UA node per leaf, named +by `path`, typed by `type`. The plugin no longer needs to call +`get_var_count` / `get_var_size` at runtime; everything it needs is in +the JSON. + +## Forcing Semantics + +`strucpp_debug_set(arr, elem, forcing=true, bytes, len)` forces the +variable to the supplied value. `strucpp_debug_set(arr, elem, +forcing=false, NULL, 0)` unforces it. This is the **same call** the +editor's debugger uses — the protocol is symmetric, and the OPC UA +plugin can offer "force this variable" semantics to its clients with +zero runtime-side help. + +## Migration Strategy + +1. **Stage 1: re-enable the plugin in stub mode.** Restore plugin + loading; the plugin starts up but every read returns 0 / write + silently fails. Logs `"OPC UA plugin running in stub mode pending + migration"`. This validates the plugin manager pipeline still works + end-to-end. +2. **Stage 2: implement the wrapper.** `HierarchicalDebugAccess` (or its + equivalent) reads `debug-map.json`, validates MD5 against + `plc_program_md5`, builds the path map. Wire one read path through it + end-to-end (e.g., a single `BOOL` exposed to OPC UA, read from a + client). +3. **Stage 3: full type coverage.** Extend the wrapper to all type tags + (`BOOL`, `SINT`...`LREAL`, time types). Use the editor's existing + per-tag encoders/decoders as the reference. +4. **Stage 4: writes + forcing.** Validate that OPC UA writes hit + `debug_set` with `forcing=false`, and that explicit "force" actions + from clients hit `debug_set` with `forcing=true`. +5. **Stage 5: regression coverage.** Run the existing OPC UA plugin + integration tests against the migrated wrapper; expect zero behavior + change from a client's perspective. + +Each stage is independently shippable. Stages 1–2 unblock developers +running the runtime locally; stages 3–5 are the productionization. + +## Files Modified + +| File | Action | +|------|--------| +| `core/src/drivers/plugin_types.h` | Add `debug_*` function pointers and `debug_map_path` to `plugin_runtime_args_t` | +| `core/src/drivers/plugin_driver.cpp` | Populate the new fields during plugin initialization | +| `core/src/drivers/plugins/python/shared/plugin_runtime_args.py` | Update the ctypes shape to match the new struct | +| `core/src/drivers/plugins/python/shared/debug_utils.py` | Replace flat-index helpers with `HierarchicalDebugAccess`-style wrapper | +| `core/src/drivers/plugins/python/shared/safe_buffer_access_refactored.py` | Same | +| `core/src/drivers/plugins/python/opcua/opcua_memory.py` | Use `HierarchicalDebugAccess` instead of the flat helpers | +| `core/src/drivers/plugins/python/opcua/synchronization.py` | Same | +| Tests under `tests/` for the affected plugins | Updated to load a real `debug-map.json` rather than mocking the flat helpers | + +## Testing Strategy + +1. **Stub-mode startup**: confirm OPC UA plugin loads, opens its + server port, accepts connections, returns dummy values without + crashing. The runtime's plugin lifecycle remains stable. +2. **Single-variable read**: with the wrapper wired up, expose one + `BOOL` to OPC UA. Client reads the value, sees it change when the + PLC program toggles it. +3. **Type coverage**: 1 of each type — `BOOL`, `INT`, `DINT`, `REAL`, + `STRING`, `TIME` — and verify each round-trips correctly. +4. **MD5 mismatch**: deliberately upload a program but drop in a + stale `debug-map.json`. Plugin refuses to start with a clear log + line. The runtime keeps running; user can re-upload. +5. **Force from OPC UA**: a client invokes the OPC UA "set value" + with the force flag; the PLC program subsequently `set()`s the + variable but the value remains forced (matches editor-side + forcing semantics). +6. **Concurrency**: 100 OPC UA clients reading 1000 variables each + while the PLC program runs at 1 ms cycles. No torn reads, no + crashes, OPC UA latency stays bounded. diff --git a/electron-builder.json b/electron-builder.json index 25ac8f43d..0b89899fa 100644 --- a/electron-builder.json +++ b/electron-builder.json @@ -11,7 +11,17 @@ "buildResources": "assets", "output": "release/build" }, - "extraResources": ["./assets/**"], + "extraResources": [ + "./assets/**", + { + "from": "./node_modules/strucpp/src/runtime/include", + "to": "./strucpp/runtime/include" + }, + { + "from": "./node_modules/strucpp/libs", + "to": "./strucpp/libs" + } + ], "mac": { "extraResources": [ { diff --git a/jest.config.json b/jest.config.json index 838fa223c..14fcbb24e 100644 --- a/jest.config.json +++ b/jest.config.json @@ -18,8 +18,11 @@ "/src/**/?(*.)+(spec|test).(ts|tsx)", "/src/**/__tests__/**/*.(ts|tsx)" ], + "transformIgnorePatterns": [ + "node_modules/(?!strucpp)" + ], "transform": { - "\\.(ts|tsx)$": [ + "\\.(ts|tsx|js|jsx)$": [ "ts-jest", { "tsconfig": "tsconfig.json" diff --git a/package-lock.json b/package-lock.json index d587fe7a6..112c8e331 100644 --- a/package-lock.json +++ b/package-lock.json @@ -46,6 +46,7 @@ "electron-store": "^8.1.0", "electron-updater": "^6.1.4", "embla-carousel-react": "^8.0.0-rc17", + "extract-zip": "^2.0.1", "fast-xml-parser": "^5.6.0", "i18next": "^24.2.2", "immer": "^10.1.1", @@ -68,7 +69,9 @@ "tailwind-merge": "^2.1.0", "url": "^0.11.3", "uuid": "^11.1.0", + "vscode-jsonrpc": "^8.2.0", "vscode-languageserver": "^9.0.1", + "vscode-languageserver-protocol": "^3.17.5", "winston": "^3.17.0", "xmlbuilder2": "^3.1.1", "yaml": "^2.8.1", @@ -10362,7 +10365,6 @@ "version": "2.10.3", "resolved": "https://registry.npmjs.org/@types/yauzl/-/yauzl-2.10.3.tgz", "integrity": "sha512-oJoftv0LSuaDZE3Le4DbKX+KS9G36NzOeSap90UIK0yMA/NhKJhqlSGtNDORNRaIbQfzjXDrQa0ytJ6mNRGz/Q==", - "dev": true, "license": "MIT", "optional": true, "dependencies": { @@ -12039,7 +12041,6 @@ "version": "0.2.13", "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz", "integrity": "sha512-VO9Ht/+p3SN7SKWqcrgEzjGbRSJYTx+Q1pTQC0wrWqHx0vpJraQ6GtHx8tvcg1rlK1byhU5gccxgOgj7B0TDkQ==", - "dev": true, "license": "MIT", "engines": { "node": "*" @@ -14861,7 +14862,6 @@ "version": "1.4.4", "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz", "integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==", - "dev": true, "license": "MIT", "dependencies": { "once": "^1.4.0" @@ -15660,7 +15660,6 @@ "version": "2.0.1", "resolved": "https://registry.npmjs.org/extract-zip/-/extract-zip-2.0.1.tgz", "integrity": "sha512-GDhU9ntwuKyGXdZBUgTIe+vXnWj0fppUEtMDL0+idd5Sta8TGpHssn/eusA9mrPr9qNDym6SxAYZjNvCn/9RBg==", - "dev": true, "license": "BSD-2-Clause", "dependencies": { "debug": "^4.1.1", @@ -15817,7 +15816,6 @@ "version": "1.1.0", "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.1.0.tgz", "integrity": "sha512-cE1qsB/VwyQozZ+q1dGxR8LBYNZeofhEdUNGSMbQD3Gw2lAzX9Zb3uIU6Ebc/Fmyjo9AWWfnn0AUCHqtevs/8g==", - "dev": true, "license": "MIT", "dependencies": { "pend": "~1.2.0" @@ -16264,7 +16262,6 @@ "version": "5.2.0", "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-5.2.0.tgz", "integrity": "sha512-nBF+F1rAZVCu/p7rjzgA+Yb4lfYXrpl7a6VmJrU8wF9I1CKvP/QwPNZHnOlwbTkY6dvtFIzFMSyQXbLoTQPRpA==", - "dev": true, "license": "MIT", "dependencies": { "pump": "^3.0.0" @@ -23437,7 +23434,6 @@ "version": "1.4.0", "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz", "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==", - "dev": true, "license": "ISC", "dependencies": { "wrappy": "1" @@ -23896,7 +23892,6 @@ "version": "1.2.0", "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz", "integrity": "sha512-F3asv42UuXchdzt+xXqfW1OGlVBe+mxa2mqI0pg5yAHZPvFmY3Y6drSf/GQ1A86WgWEN9Kzh/WrgKa6iGcHXLg==", - "dev": true, "license": "MIT" }, "node_modules/picocolors": { @@ -25104,7 +25099,6 @@ "version": "3.0.0", "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz", "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==", - "dev": true, "license": "MIT", "dependencies": { "end-of-stream": "^1.1.0", @@ -28987,6 +28981,7 @@ "version": "8.2.0", "resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-8.2.0.tgz", "integrity": "sha512-C+r0eKJUIfiDIfwJhria30+TYWPtuHJXHtI7J0YlOmKAo7ogxP20T0zxB7HZQIFhIyvoBPwWskjxrvAtfjyZfA==", + "license": "MIT", "engines": { "node": ">=14.0.0" } @@ -29006,6 +29001,7 @@ "version": "3.17.5", "resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.17.5.tgz", "integrity": "sha512-mb1bvRJN8SVznADSGWM9u/b07H7Ecg0I3OgXDuLdn307rl/J3A9YD6/eYOssqhecL27hK1IPZAsaqh00i/Jljg==", + "license": "MIT", "dependencies": { "vscode-jsonrpc": "8.2.0", "vscode-languageserver-types": "3.17.5" @@ -29658,7 +29654,6 @@ "version": "1.0.2", "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==", - "dev": true, "license": "ISC" }, "node_modules/ws": { @@ -29833,7 +29828,6 @@ "version": "2.10.0", "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz", "integrity": "sha512-p4a9I6X6nu6IhoGmBqAcbJy1mlC4j27vEPZX9F4L4/vZT3Lyq1VkFHw/V/PUcB9Buo+DG3iHkT0x3Qya58zc3g==", - "dev": true, "license": "MIT", "dependencies": { "buffer-crc32": "~0.2.3", diff --git a/package.json b/package.json index e54b915ad..61b9b3c62 100644 --- a/package.json +++ b/package.json @@ -68,6 +68,7 @@ "electron-store": "^8.1.0", "electron-updater": "^6.1.4", "embla-carousel-react": "^8.0.0-rc17", + "extract-zip": "^2.0.1", "fast-xml-parser": "^5.6.0", "i18next": "^24.2.2", "immer": "^10.1.1", @@ -90,7 +91,9 @@ "tailwind-merge": "^2.1.0", "url": "^0.11.3", "uuid": "^11.1.0", + "vscode-jsonrpc": "^8.2.0", "vscode-languageserver": "^9.0.1", + "vscode-languageserver-protocol": "^3.17.5", "winston": "^3.17.0", "xmlbuilder2": "^3.1.1", "yaml": "^2.8.1", diff --git a/resources/sources/Baremetal/Baremetal.ino b/resources/sources/Baremetal/Baremetal.ino index a55b64469..63bb837fc 100644 --- a/resources/sources/Baremetal/Baremetal.ino +++ b/resources/sources/Baremetal/Baremetal.ino @@ -1,11 +1,35 @@ -#include "Arduino_OpenPLC.h" +// Baremetal.ino -- OpenPLC Arduino runtime entry sketch. +// +// This is a STATIC sketch -- the same code for every project. It hosts the +// I/O buffers, Modbus glue, and the scan-cycle scheduler. Every strucpp +// type, every PLC POU instance, and every library body lives in the +// arduino library at src/ (compiled as separate translation units that +// never see Arduino.h). The sketch only talks to that library through the +// thin C-linkage surface in arduino_runtime_glue.h. +// +// Why the separation: arduino-cli auto-prepends to every .ino +// translation unit. Arduino.h defines macros named DEFAULT / HIGH / LOW / +// PI / B0..B7 / INPUT / OUTPUT and others that collide with struct member +// names emitted by strucpp's library bodies (most visibly OSCAT's +// CONSTANTS_LANGUAGE.DEFAULT). Keeping every strucpp class body out of +// the .ino's TU removes the entire class of collisions in one move. + +// Arduino.h defines min/max/abs/round as function-like macros that break +// C++ standard library templates (, , etc). +#undef min +#undef max +#undef abs +#undef round + +#include "openplc.h" #include "defines.h" +#include "arduino_runtime_glue.h" #ifdef MODBUS_ENABLED #include "ModbusSlave.h" #endif -//Include WiFi lib to turn off WiFi radio on ESP32 and ESP8266 boards if we're not using WiFi +// Include WiFi lib to turn off WiFi radio on ESP32/ESP8266 if not using WiFi #ifndef MBTCP #if defined(BOARD_ESP8266) #include @@ -14,12 +38,39 @@ #endif #endif -uint32_t __tick = 0; +// --------------------------------------------------------------------------- +// AVR: provide sized operator delete (virtual destructors generate this) +// --------------------------------------------------------------------------- +void operator delete(void* ptr, unsigned int) +{ + free(ptr); +} + +// --------------------------------------------------------------------------- +// I/O Buffer definitions (declared extern in openplc.h, must be defined +// here so they have external linkage. The glue's runtime_bind_located_vars +// reads/writes these slots.) +// --------------------------------------------------------------------------- +IEC_BOOL *bool_input[MAX_DIGITAL_INPUT/8][8] = {}; +IEC_BOOL *bool_output[MAX_DIGITAL_OUTPUT/8][8] = {}; +IEC_UINT *int_input[MAX_ANALOG_INPUT] = {}; +IEC_UINT *int_output[MAX_ANALOG_OUTPUT] = {}; +#if !defined(__AVR_ATmega328P__) && !defined(__AVR_ATmega168__) && !defined(__AVR_ATmega32U4__) && !defined(__AVR_ATmega16U4__) +IEC_UINT *int_memory[MAX_MEMORY_WORD] = {}; +IEC_UDINT *dint_memory[MAX_MEMORY_DWORD] = {}; +IEC_ULINT *lint_memory[MAX_MEMORY_LWORD] = {}; +#endif +// --------------------------------------------------------------------------- +// Scan cycle timing +// --------------------------------------------------------------------------- unsigned long scan_cycle; unsigned long last_run = 0; bool first_cycle = false; +// --------------------------------------------------------------------------- +// Module includes and external sketch support +// --------------------------------------------------------------------------- #include "arduino_libs.h" #ifdef USE_ARDUINO_SKETCH @@ -31,123 +82,114 @@ extern uint8_t pinMask_AIN[]; extern uint8_t pinMask_DOUT[]; extern uint8_t pinMask_AOUT[]; -/* -extern "C" int availableMemory(char *); - -int availableMemory(char *msg) -{ - int size = 8192; // Use 2048 with ATmega328 - byte *buf; - - while ((buf = (byte *) malloc(--size)) == NULL); - - free(buf); - Serial.print(msg); - Serial.println(size); -} -*/ - +// --------------------------------------------------------------------------- +// Scan cycle delay setup +// --------------------------------------------------------------------------- void setupCycleDelay(unsigned long long cycle_time) { - scan_cycle = (uint32_t)(cycle_time/1000); + scan_cycle = (uint32_t)(cycle_time / 1000); last_run = micros(); } +// ============================================================================= +// SETUP +// ============================================================================= void setup() { - //Turn off WiFi radio on ESP32 and ESP8266 boards if we're not using WiFi + // Turn off WiFi radio on ESP32/ESP8266 if not using WiFi #ifndef MBTCP #if defined(BOARD_ESP8266) || defined(BOARD_ESP32) WiFi.mode(WIFI_OFF); #endif #endif - config_init__(); - glueVars(); + + // Bind located variables to I/O buffer pointers + runtime_bind_located_vars(); + + // Discover tasks and compute scheduling + runtime_discover_tasks(); + + // Initialize hardware (HAL -- unchanged) hardwareInit(); - #ifdef MODBUS_ENABLED + + #ifdef MODBUS_ENABLED #ifdef MBSERIAL - //Config Modbus Serial (port, speed, rs485 tx pin) #ifdef MBSERIAL_TXPIN - //Disable TX pin from OpenPLC hardware layer + // Disable TX pin from OpenPLC hardware layer for (int i = 0; i < NUM_DISCRETE_INPUT; i++) { - if (pinMask_DIN[i] == MBSERIAL_TXPIN) - pinMask_DIN[i] = 255; + if (pinMask_DIN[i] == MBSERIAL_TXPIN) pinMask_DIN[i] = 255; } for (int i = 0; i < NUM_ANALOG_INPUT; i++) { - if (pinMask_AIN[i] == MBSERIAL_TXPIN) - pinMask_AIN[i] = 255; + if (pinMask_AIN[i] == MBSERIAL_TXPIN) pinMask_AIN[i] = 255; } for (int i = 0; i < NUM_DISCRETE_OUTPUT; i++) { - if (pinMask_DOUT[i] == MBSERIAL_TXPIN) - pinMask_DOUT[i] = 255; + if (pinMask_DOUT[i] == MBSERIAL_TXPIN) pinMask_DOUT[i] = 255; } for (int i = 0; i < NUM_ANALOG_OUTPUT; i++) { - if (pinMask_AOUT[i] == MBSERIAL_TXPIN) - pinMask_AOUT[i] = 255; + if (pinMask_AOUT[i] == MBSERIAL_TXPIN) pinMask_AOUT[i] = 255; } - MBSERIAL_IFACE.begin(MBSERIAL_BAUD); //Initialize serial interface + MBSERIAL_IFACE.begin(MBSERIAL_BAUD); mbconfig_serial_iface(&MBSERIAL_IFACE, MBSERIAL_BAUD, MBSERIAL_TXPIN); #else - MBSERIAL_IFACE.begin(MBSERIAL_BAUD); //Initialize serial interface - mbconfig_serial_iface(&MBSERIAL_IFACE, MBSERIAL_BAUD, -1);; + MBSERIAL_IFACE.begin(MBSERIAL_BAUD); + mbconfig_serial_iface(&MBSERIAL_IFACE, MBSERIAL_BAUD, -1); #endif - - //Set the Slave ID - modbus.slaveid = MBSERIAL_SLAVE; + modbus.slaveid = MBSERIAL_SLAVE; #endif #ifdef MBTCP - uint8_t mac[] = { MBTCP_MAC }; - uint8_t ip[] = { MBTCP_IP }; - uint8_t dns[] = { MBTCP_DNS }; - uint8_t gateway[] = { MBTCP_GATEWAY }; - uint8_t subnet[] = { MBTCP_SUBNET }; - - if (sizeof(ip)/sizeof(uint8_t) < 4) - mbconfig_ethernet_iface(mac, NULL, NULL, NULL, NULL); - else if (sizeof(dns)/sizeof(uint8_t) < 4) - mbconfig_ethernet_iface(mac, ip, NULL, NULL, NULL); - else if (sizeof(gateway)/sizeof(uint8_t) < 4) - mbconfig_ethernet_iface(mac, ip, dns, NULL, NULL); - else if (sizeof(subnet)/sizeof(uint8_t) < 4) - mbconfig_ethernet_iface(mac, ip, dns, gateway, NULL); - else - mbconfig_ethernet_iface(mac, ip, dns, gateway, subnet); + uint8_t mac[] = { MBTCP_MAC }; + uint8_t ip[] = { MBTCP_IP }; + uint8_t dns[] = { MBTCP_DNS }; + uint8_t gateway[] = { MBTCP_GATEWAY }; + uint8_t subnet[] = { MBTCP_SUBNET }; + + if (sizeof(ip)/sizeof(uint8_t) < 4) + mbconfig_ethernet_iface(mac, NULL, NULL, NULL, NULL); + else if (sizeof(dns)/sizeof(uint8_t) < 4) + mbconfig_ethernet_iface(mac, ip, NULL, NULL, NULL); + else if (sizeof(gateway)/sizeof(uint8_t) < 4) + mbconfig_ethernet_iface(mac, ip, dns, NULL, NULL); + else if (sizeof(subnet)/sizeof(uint8_t) < 4) + mbconfig_ethernet_iface(mac, ip, dns, gateway, NULL); + else + mbconfig_ethernet_iface(mac, ip, dns, gateway, subnet); #endif - //Add all modbus registers init_mbregs(MAX_ANALOG_OUTPUT + MAX_MEMORY_WORD, MAX_MEMORY_DWORD, MAX_MEMORY_LWORD, MAX_DIGITAL_OUTPUT, MAX_ANALOG_INPUT, MAX_DIGITAL_INPUT); mapEmptyBuffers(); - #endif + #endif - setupCycleDelay(common_ticktime__); + setupCycleDelay(base_tick_ns); #ifdef USE_ARDUINO_SKETCH sketch_setup(); #endif } +// ============================================================================= +// MAP EMPTY BUFFERS (for Modbus) +// ============================================================================= #ifdef MODBUS_ENABLED void mapEmptyBuffers() { - //Map all NULL I/O buffers to Modbus registers for (int i = 0; i < MAX_DIGITAL_OUTPUT; i++) { if (bool_output[i/8][i%8] == NULL) { - bool_output[i/8][i%8] = (IEC_BOOL *)malloc(sizeof(IEC_BOOL)); - *bool_output[i/8][i%8] = 0; + bool_output[i/8][i%8] = (IEC_BOOL *)malloc(sizeof(IEC_BOOL)); + *bool_output[i/8][i%8] = 0; } } for (int i = 0; i < MAX_ANALOG_OUTPUT; i++) { if (int_output[i] == NULL) { - int_output[i] = (IEC_UINT *)(modbus.holding + i); + int_output[i] = (IEC_UINT *)(modbus.holding + i); } } for (int i = 0; i < MAX_DIGITAL_INPUT; i++) @@ -155,14 +197,14 @@ void mapEmptyBuffers() if (bool_input[i/8][i%8] == NULL) { bool_input[i/8][i%8] = (IEC_BOOL *)malloc(sizeof(IEC_BOOL)); - *bool_input[i/8][i%8] = 0; + *bool_input[i/8][i%8] = 0; } } for (int i = 0; i < MAX_ANALOG_INPUT; i++) { if (int_input[i] == NULL) { - int_input[i] = (IEC_UINT *)(modbus.input_regs + i); + int_input[i] = (IEC_UINT *)(modbus.input_regs + i); } } #if !defined(__AVR_ATmega328P__) && !defined(__AVR_ATmega168__) && !defined(__AVR_ATmega32U4__) && !defined(__AVR_ATmega16U4__) @@ -190,9 +232,12 @@ void mapEmptyBuffers() #endif } +// ============================================================================= +// MODBUS TASK +// ============================================================================= void modbusTask() { - //Sync OpenPLC Buffers with Modbus Buffers + // Sync OpenPLC Buffers with Modbus Buffers for (int i = 0; i < MAX_DIGITAL_OUTPUT; i++) { if (bool_output[i/8][i%8] != NULL) @@ -245,10 +290,10 @@ void modbusTask() } #endif - //Read changes from clients + // Read changes from clients mbtask(); - //Write changes back to OpenPLC Buffers + // Write changes back to OpenPLC Buffers for (int i = 0; i < MAX_DIGITAL_OUTPUT; i++) { if (bool_output[i/8][i%8] != NULL) @@ -289,19 +334,12 @@ void modbusTask() } #endif -void plcCycleTask() -{ - updateInputBuffers(); - config_run__(__tick++); //PLC Logic - updateOutputBuffers(); - updateTime(); -} - +// ============================================================================= +// SCHEDULER +// ============================================================================= void scheduler() { - // Run tasks round robin - higher priority first - - plcCycleTask(); + runtime_plc_cycle(); #ifdef USE_ARDUINO_SKETCH sketch_loop(); @@ -319,21 +357,19 @@ void scheduler() } } +// ============================================================================= +// MAIN LOOP +// ============================================================================= void loop() { - // ignore until next scan cycle (run lower priority tasks if time permits) - // always rely on the difference between now (aka micros() ) and the last_run, - // which always is a positive integer number, even when micros() wraps around every 71 minutes. if ((micros() - last_run) >= scan_cycle) { scheduler(); - - //set timer for the next scan cycle last_run += scan_cycle; } #ifdef MODBUS_ENABLED - //Only run Modbus task again if we have at least 10ms gap until the next cycle + // Only run Modbus task again if we have at least 10ms gap until the next cycle if ((micros() - last_run) >= 10000) { modbusTask(); @@ -341,10 +377,6 @@ void loop() #endif #ifdef SIMULATOR_MODE - // In the emulated ATmega2560, busy-waiting wastes host CPU executing - // millions of useless instructions. SLEEP (opcode 0x9588) is detected - // by the emulator which fast-forwards the clock to the next timer event - // instead of stepping through every idle cycle. __asm volatile("sleep"); #endif } diff --git a/resources/sources/Baremetal/ModbusSlave.cpp b/resources/sources/Baremetal/ModbusSlave.cpp index 0f1834c51..cc699d24b 100644 --- a/resources/sources/Baremetal/ModbusSlave.cpp +++ b/resources/sources/Baremetal/ModbusSlave.cpp @@ -4,6 +4,7 @@ Copyright (C) 2022 OpenPLC - Thiago Alves */ #include "ModbusSlave.h" +#include "debug_dispatch.hpp" // Phase 4 debugger — strucpp::debug::handle_* //Global Modbus vars struct MBinfo modbus; @@ -505,11 +506,9 @@ void handle_serial() void process_mbpacket() { uint8_t fcode = mb_frame[1]; + // Standard Modbus fields — preserved for the non-debug FCs. uint16_t field1 = (uint16_t)mb_frame[2] << 8 | (uint16_t)mb_frame[3]; uint16_t field2 = (uint16_t)mb_frame[4] << 8 | (uint16_t)mb_frame[5]; - uint8_t flag = mb_frame[4]; - uint16_t len = (uint16_t)mb_frame[5] << 8 | (uint16_t)mb_frame[6]; - void *value = &mb_frame[7]; void *endianness_check = &mb_frame[2]; switch (fcode) @@ -559,18 +558,33 @@ void process_mbpacket() break; case MB_FC_DEBUG_GET: - //field1 = startidx, field2 = endidx - debugGetTrace(field1, field2); + { + // PDU: [FC:1][arr:u8][start_elem:u16][end_elem:u16] + uint8_t arr = mb_frame[2]; + uint16_t startIdx = (uint16_t)mb_frame[3] << 8 | (uint16_t)mb_frame[4]; + uint16_t endIdx = (uint16_t)mb_frame[5] << 8 | (uint16_t)mb_frame[6]; + debugGetTrace(arr, startIdx, endIdx); + } break; case MB_FC_DEBUG_GET_LIST: - //field1 = numIndexes - debugGetTraceList(field1, &mb_frame[4]); + { + // PDU: [FC:1][count:u16][(arr:u8, elem:u16)×count] + uint16_t numIndexes = (uint16_t)mb_frame[2] << 8 | (uint16_t)mb_frame[3]; + debugGetTraceList(numIndexes, &mb_frame[4]); + } break; case MB_FC_DEBUG_SET: - //field1 = varidx - debugSetTrace(field1, flag, len, value); + { + // PDU: [FC:1][arr:u8][elem:u16][force:u8][len:u16][value...] + uint8_t arr = mb_frame[2]; + uint16_t elem = (uint16_t)mb_frame[3] << 8 | (uint16_t)mb_frame[4]; + uint8_t flag = mb_frame[5]; + uint16_t len = (uint16_t)mb_frame[6] << 8 | (uint16_t)mb_frame[7]; + void *value = &mb_frame[8]; + debugSetTrace(arr, elem, flag, len, value); + } break; case MB_FC_DEBUG_GET_MD5: @@ -1051,13 +1065,32 @@ void writeMultipleCoils(uint16_t startreg, uint16_t numoutputs, uint16_t bytecou * * @return void */ +// Phase 4 PDU: +// +-----+-------+------+-----------+-----------+-----------+ +// | FC | arrs | stat | count_0 | count_1 | ... | +// |0x41 | (u8) | (u8) | (u16 BE) | (u16 BE) | | +// +-----+-------+------+-----------+-----------+-----------+ +// Response: [FC, arrCount, STATUS_OK, (count×arrCount as u16 BE)] void debugInfo() { - uint16_t variableCount = get_var_count(); - mb_frame_len = 4; + uint8_t arrCount = strucpp::debug::handle_array_count(); + + // Cap at what the Modbus frame can hold: 3 header bytes + 2 bytes/array. + // Realistic projects have <=10 arrays, so this is never a real limit. + uint8_t maxArrs = (MAX_MB_FRAME - 3) / 2; + if (arrCount > maxArrs) arrCount = maxArrs; + mb_frame[1] = MB_FC_DEBUG_INFO; - mb_frame[2] = (uint8_t)(variableCount >> 8); // High byte - mb_frame[3] = (uint8_t)(variableCount & 0xFF); // Low byte + mb_frame[2] = arrCount; + mb_frame[3] = MB_DEBUG_SUCCESS; + uint16_t pos = 4; + for (uint8_t i = 0; i < arrCount; i++) + { + uint16_t c = strucpp::debug::handle_elem_count(i); + mb_frame[pos++] = (uint8_t)(c >> 8); + mb_frame[pos++] = (uint8_t)(c & 0xFF); + } + mb_frame_len = pos; } /** @@ -1082,25 +1115,25 @@ void debugInfo() * * @return void */ -void debugSetTrace(uint16_t varidx, uint8_t flag, uint16_t len, void *value) +// Phase 4 PDU: [FC, arr, elem_hi, elem_lo, force, len_hi, len_lo, value...] +// Response: [FC, STATUS] +void debugSetTrace(uint8_t arr, uint16_t elem, uint8_t flag, + uint16_t len, void *value) { - uint16_t variableCount = get_var_count(); - if (varidx >= variableCount || len > (MAX_MB_FRAME - 7)) + if (len > (MAX_MB_FRAME - 8)) { - // Respond with an error indicating that the index is out of range mb_frame_len = 3; mb_frame[1] = MB_FC_DEBUG_SET; mb_frame[2] = MB_DEBUG_ERROR_OUT_OF_BOUNDS; return; } - // Execute set trace command - set_trace((size_t)varidx, (bool)flag, value); + uint8_t status = strucpp::debug::handle_set( + arr, elem, (bool)flag, (const uint8_t *)value, len); - // Response mb_frame_len = 3; mb_frame[1] = MB_FC_DEBUG_SET; - mb_frame[2] = MB_DEBUG_SUCCESS; + mb_frame[2] = status; } /** @@ -1123,58 +1156,58 @@ void debugSetTrace(uint16_t varidx, uint8_t flag, uint16_t len, void *value) * * @return void */ -void debugGetTrace(uint16_t startidx, uint16_t endidx) +// Phase 4 PDU: [FC, arr, start_hi, start_lo, end_hi, end_lo] +// Response: [FC, STATUS, last_elem_hi, last_elem_lo, +// tick_hi, tick_mh, tick_ml, tick_lo, +// size_hi, size_lo, data...] +void debugGetTrace(uint8_t arr, uint16_t startidx, uint16_t endidx) { - uint16_t variableCount = get_var_count(); - // Verify that startidx and endidx fall within the valid range of variables - if (startidx >= variableCount || endidx >= variableCount || startidx > endidx) + uint16_t arrCount = strucpp::debug::handle_elem_count(arr); + if (arrCount == 0 || startidx >= arrCount || + endidx >= arrCount || startidx > endidx) { - // Respond with an error indicating that the indices are out of range mb_frame_len = 3; mb_frame[1] = MB_FC_DEBUG_GET; mb_frame[2] = MB_DEBUG_ERROR_OUT_OF_BOUNDS; return; } - uint16_t lastVarIdx = startidx; - size_t responseSize = 0; - uint8_t *responsePtr = &(mb_frame[11]); // Start of response data + uint16_t lastElemIdx = startidx; + uint16_t responseSize = 0; + uint8_t *responsePtr = &(mb_frame[11]); - for (uint16_t varidx = startidx; varidx <= endidx; varidx++) + for (uint16_t elem = startidx; elem <= endidx; elem++) { - size_t varSize = get_var_size(varidx); - if ((responseSize + 11) + varSize <= MAX_MB_FRAME) // Make sure the response fits - { - void *varAddr = get_var_addr(varidx); - - // Copy the variable value to the response buffer - memcpy(responsePtr, varAddr, varSize); - - // Update response pointer and size - responsePtr += varSize; - responseSize += varSize; - - // Update the lastVarIdx - lastVarIdx = varidx; + uint16_t varSize = strucpp::debug::handle_size(arr, elem); + // Bounds check — stop packing if this one won't fit. + if ((11 + responseSize + varSize) > MAX_MB_FRAME) break; + if (varSize == 0) { + // Entry has no readable bytes (string stub / out-of-bounds) + // — skip gracefully to keep the scan progressing. + lastElemIdx = elem; + continue; } - else - { - // Response buffer is full, break the loop - break; + uint16_t n = strucpp::debug::handle_read(arr, elem, responsePtr); + if (n == 0) { + lastElemIdx = elem; + continue; } + responsePtr += n; + responseSize += n; + lastElemIdx = elem; } - mb_frame_len = 7 + responseSize; // Update response length + mb_frame_len = 11 + responseSize; mb_frame[1] = MB_FC_DEBUG_GET; mb_frame[2] = MB_DEBUG_SUCCESS; - mb_frame[3] = (uint8_t)(lastVarIdx >> 8); // High byte - mb_frame[4] = (uint8_t)(lastVarIdx & 0xFF); // Low byte - mb_frame[5] = (uint8_t)((__tick >> 24) & 0xFF); // Highest byte - mb_frame[6] = (uint8_t)((__tick >> 16) & 0xFF); // Second highest byte - mb_frame[7] = (uint8_t)((__tick >> 8) & 0xFF); // Second lowest byte - mb_frame[8] = (uint8_t)(__tick & 0xFF); // Lowest byte - mb_frame[9] = (uint8_t)(responseSize >> 8); // High byte - mb_frame[10] = (uint8_t)(responseSize & 0xFF); // Low byte + mb_frame[3] = (uint8_t)(lastElemIdx >> 8); + mb_frame[4] = (uint8_t)(lastElemIdx & 0xFF); + mb_frame[5] = (uint8_t)((scan_counter >> 24) & 0xFF); + mb_frame[6] = (uint8_t)((scan_counter >> 16) & 0xFF); + mb_frame[7] = (uint8_t)((scan_counter >> 8) & 0xFF); + mb_frame[8] = (uint8_t)(scan_counter & 0xFF); + mb_frame[9] = (uint8_t)(responseSize >> 8); + mb_frame[10] = (uint8_t)(responseSize & 0xFF); } /** @@ -1197,12 +1230,17 @@ void debugGetTrace(uint16_t startidx, uint16_t endidx) * * @return void */ +// Phase 4 PDU: [FC, count_hi, count_lo, (arr:u8, elem_hi, elem_lo)×count] +// Response: [FC, STATUS, last_idx_hi, last_idx_lo, +// tick_hi, tick_mh, tick_ml, tick_lo, +// size_hi, size_lo, data...] +// last_idx is the index *into the request list* that was last successfully +// included — the editor uses it to retry from the next item on overflow. void debugGetTraceList(uint16_t numIndexes, uint8_t *indexArray) { - uint16_t response_idx = 11; // Start of response data in the response buffer + uint16_t response_idx = 11; uint16_t responseSize = 0; - uint16_t lastVarIdx = 0; - uint16_t variableCount = get_var_count(); + uint16_t lastReqIdx = 0; #ifdef MBSERIAL #define VARIDX_SIZE 20 @@ -1210,98 +1248,87 @@ void debugGetTraceList(uint16_t numIndexes, uint8_t *indexArray) #define VARIDX_SIZE 60 #endif - uint16_t varidx_array[VARIDX_SIZE]; - - // Validate if buffer has space for all indexes if (numIndexes > VARIDX_SIZE) { - // Respond with a memory error mb_frame_len = 3; mb_frame[1] = MB_FC_DEBUG_GET_LIST; mb_frame[2] = MB_DEBUG_ERROR_OUT_OF_MEMORY; return; } - // Copy all indexes to array - for (uint16_t i = 0; i < numIndexes; i++) - { - varidx_array[i] = (uint16_t)indexArray[i * 2] << 8 | indexArray[i * 2 + 1]; + // The request indexArray (at mb_frame[4..]) and the response buffer + // (mb_frame[11..]) overlap. Once handle_read writes the first response + // byte, later index entries inside mb_frame are clobbered. Snapshot the + // request first. + uint8_t localIndex[VARIDX_SIZE * 3]; + for (uint16_t i = 0; i < numIndexes * 3; i++) { + localIndex[i] = indexArray[i]; } - // Validate if all requested indexes are in range + // Each address pair is 3 bytes: [arr:u8, elem_hi, elem_lo] for (uint16_t i = 0; i < numIndexes; i++) { - if (varidx_array[i] >= variableCount) - { - // Respond with an error indicating that the index is out of range - mb_frame_len = 3; - mb_frame[1] = MB_FC_DEBUG_GET_LIST; - mb_frame[2] = MB_DEBUG_ERROR_OUT_OF_BOUNDS; - return; - } + uint8_t arr = localIndex[i * 3]; + uint16_t elem = (uint16_t)localIndex[i * 3 + 1] << 8 | + (uint16_t)localIndex[i * 3 + 2]; - // Add requested indexes and their traces to the response buffer - size_t varSize = get_var_size(varidx_array[i]); - - // Make sure there is enough space in the response buffer - if (response_idx + varSize <= MAX_MB_FRAME) + uint16_t varSize = strucpp::debug::handle_size(arr, elem); + if (varSize == 0) { - // Add variable data to the response buffer - void *varAddr = get_var_addr(varidx_array[i]); - memcpy(&mb_frame[response_idx], varAddr, varSize); - response_idx += varSize; - responseSize += varSize; - - // Update the lastVarIdx - lastVarIdx = varidx_array[i]; + // Out-of-bounds or string stub — skip gracefully. + lastReqIdx = i; + continue; } - else + if ((response_idx + varSize) > MAX_MB_FRAME) break; + + uint16_t n = strucpp::debug::handle_read(arr, elem, &mb_frame[response_idx]); + if (n == 0) { - // Response buffer is full, break the loop - break; + lastReqIdx = i; + continue; } + response_idx += n; + responseSize += n; + lastReqIdx = i; } - // Update response length, lastVarIdx, and response size mb_frame_len = response_idx; mb_frame[1] = MB_FC_DEBUG_GET_LIST; mb_frame[2] = MB_DEBUG_SUCCESS; - mb_frame[3] = (uint8_t)(lastVarIdx >> 8); // High byte - mb_frame[4] = (uint8_t)(lastVarIdx & 0xFF); // Low byte - mb_frame[5] = (uint8_t)((__tick >> 24) & 0xFF); // Highest byte - mb_frame[6] = (uint8_t)((__tick >> 16) & 0xFF); // Second highest byte - mb_frame[7] = (uint8_t)((__tick >> 8) & 0xFF); // Second lowest byte - mb_frame[8] = (uint8_t)(__tick & 0xFF); // Lowest byte - mb_frame[9] = (uint8_t)(responseSize >> 8); // High byte - mb_frame[10] = (uint8_t)(responseSize & 0xFF); // Low byte + mb_frame[3] = (uint8_t)(lastReqIdx >> 8); + mb_frame[4] = (uint8_t)(lastReqIdx & 0xFF); + mb_frame[5] = (uint8_t)((scan_counter >> 24) & 0xFF); + mb_frame[6] = (uint8_t)((scan_counter >> 16) & 0xFF); + mb_frame[7] = (uint8_t)((scan_counter >> 8) & 0xFF); + mb_frame[8] = (uint8_t)(scan_counter & 0xFF); + mb_frame[9] = (uint8_t)(responseSize >> 8); + mb_frame[10] = (uint8_t)(responseSize & 0xFF); } -void debugGetMd5(void *endianness) +// PDU request: [FC, endian_check_hi, endian_check_lo] +// PDU response: [FC, STATUS, md5_ascii..., endian_marker_hi, endian_marker_lo] +// +// The target always writes variable data in native byte order — STruC++ does +// no server-side byte-order adaptation, force/read is pure memcpy. To let +// the editor detect what "native" means here, the MD5 response trailer +// writes the literal value 0xDEAD via a native `uint16_t*` store. The +// bytes that land in the response are therefore in the target's native +// byte order: +// +// LE target → trailer bytes = [0xAD, 0xDE] +// BE target → trailer bytes = [0xDE, 0xAD] +// +// The editor inspects those two bytes after MD5 verification and decides +// whether subsequent force/read traffic needs byte-swapping at its end. +// +// The probe bytes the editor sends are intentionally ignored — the trailer +// is a runtime-driven sentinel, not an echo. The argument stays in the +// signature for ABI compatibility with the dispatcher. +void debugGetMd5(void * /*endianness*/) { - // Check endianness - uint16_t endian_check = 0; - memcpy(&endian_check, endianness, 2); - if (endian_check == 0xDEAD) - { - set_endianness(SAME_ENDIANNESS); - } - else if (endian_check == 0xADDE) - { - set_endianness(REVERSE_ENDIANNESS); - } - else - { - // Respond with an error indicating that the argument is wrong - mb_frame_len = 3; - mb_frame[1] = MB_FC_DEBUG_GET_MD5; - mb_frame[2] = MB_DEBUG_ERROR_OUT_OF_BOUNDS; - //return; - } - mb_frame[1] = MB_FC_DEBUG_GET_MD5; mb_frame[2] = MB_DEBUG_SUCCESS; - // Copy MD5 string byte by byte to mb_frame starting from index 3 const char md5[] = PROGRAM_MD5; int md5_len = 0; for (md5_len = 0; md5[md5_len] != '\0'; md5_len++) @@ -1309,8 +1336,12 @@ void debugGetMd5(void *endianness) mb_frame[md5_len + 3] = md5[md5_len]; } - // Calculate mb_frame_len (MD5 string length + 3) - mb_frame_len = md5_len + 3; + // Native-order store of the endianness sentinel. The reinterpret_cast + // is intentional: it preserves the target's byte ordering in the + // emitted bytes, which is exactly the signal the editor uses to choose + // its swap behaviour. + *reinterpret_cast(&mb_frame[md5_len + 3]) = 0xDEAD; + mb_frame_len = md5_len + 5; } uint16_t calcCrc() diff --git a/resources/sources/Baremetal/ModbusSlave.h b/resources/sources/Baremetal/ModbusSlave.h index 74d1129e6..1177cabce 100644 --- a/resources/sources/Baremetal/ModbusSlave.h +++ b/resources/sources/Baremetal/ModbusSlave.h @@ -67,21 +67,17 @@ Copyright (C) 2022 OpenPLC - Thiago Alves #include "Controllino.h" #endif -// Debugger functions -extern "C" uint16_t get_var_count(void); -extern "C" size_t get_var_size(size_t);// {return 0;} -extern "C" void *get_var_addr(size_t);// {return 0;} -extern "C" void force_var(size_t, bool, void *);// {} -extern "C" void set_trace(size_t, bool, void *);// {} -extern "C" void trace_reset(void);// {} -extern "C" void set_endianness(uint8_t value); -extern uint32_t __tick; - +// Scan-cycle counter defined by the Arduino sketch — reported in +// DEBUG_GET / DEBUG_GET_LIST responses so the editor can detect cycle +// boundaries. +extern uint32_t scan_counter; + +// Status codes (match strucpp::debug::STATUS_* in debug_dispatch.hpp, kept +// as macros here so the Modbus layer doesn't have to include the C++ +// runtime header when the rest of the protocol is C-style). #define MB_DEBUG_SUCCESS 0x7E #define MB_DEBUG_ERROR_OUT_OF_BOUNDS 0x81 #define MB_DEBUG_ERROR_OUT_OF_MEMORY 0x82 -#define SAME_ENDIANNESS 0 -#define REVERSE_ENDIANNESS 1 //Modbus registers struct struct MBinfo { @@ -181,9 +177,12 @@ void readInputStatus(uint16_t startreg, uint16_t numregs); void readInputRegisters(uint16_t startreg, uint16_t numregs); void writeSingleCoil(uint16_t reg, uint16_t status); void writeMultipleCoils(uint16_t startreg, uint16_t numoutputs, uint16_t bytecount); +// Phase 4 debugger entrypoints. Signatures changed from MatIEC-era +// (flat u16 index) to the (array_idx: u8, elem_idx: u16) addressing model. void debugInfo(void); -void debugSetTrace(uint16_t varidx, uint8_t flag, uint16_t len, void *value); -void debugGetTrace(uint16_t startidx, uint16_t endidx); +void debugSetTrace(uint8_t arr, uint16_t elem, uint8_t flag, + uint16_t len, void *value); +void debugGetTrace(uint8_t arr, uint16_t startidx, uint16_t endidx); void debugGetTraceList(uint16_t numIndexes, uint8_t *indexArray); void debugGetMd5(void *endianness); diff --git a/resources/sources/Baremetal/c_blocks_code.cpp b/resources/sources/Baremetal/c_blocks_code.cpp index 21ad6f671..0df5dab0f 100644 --- a/resources/sources/Baremetal/c_blocks_code.cpp +++ b/resources/sources/Baremetal/c_blocks_code.cpp @@ -1,9 +1,30 @@ -#include +#include +#include #ifdef ARDUINO #include +// Arduino.h defines min(a,b) and max(a,b) as 2-arg macros that collide +// with std::min / std::max templates in (pulled in +// transitively by iec_string.hpp below). Undef so the strucpp runtime +// headers parse cleanly — standard Arduino+STL idiom. +#undef min +#undef max #endif +// STruC++ runtime types — IEC_BOOL/IEC_INT/.../IEC_REAL all live under +// `namespace strucpp` as IECVar wrappers. The auto-generated POU +// struct (emitted just below this preamble at compile time) refers to +// them as `strucpp::IEC_*` so the user's `*name = 5` write routes +// through `IECVar::operator=` and respects forcing on the IEC side. +// +// The user's setup() / loop() bodies meanwhile keep the historical +// raw-type aliases at file scope for any user-local variables +// (e.g. `IEC_INT my_temp = 0;` stays a plain int16_t). The struct +// field's `strucpp::IEC_INT*` resolves separately and never collides +// with these typedefs. +#include "iec_var.hpp" +#include "iec_string.hpp" + /*********************/ /* IEC Types defs */ /*********************/ @@ -37,7 +58,13 @@ typedef double IEC_LREAL; #endif typedef STR_LEN_TYPE __strlen_t; +// Raw STRING/WSTRING layout used in the auto-generated struct *and* by +// the C++ stub's flat staging (see frontend/utils/cpp/generateSTCode.ts). +// Matches what the user's c_blocks code expects via `name.len` / +// `name.body[]`. This intentionally shadows nothing — the generated +// struct refers to it unqualified, the strucpp wrapper as `strucpp::`. typedef struct { __strlen_t len; uint8_t body[STR_MAX_LEN]; } IEC_STRING; +typedef IEC_STRING IEC_WSTRING; diff --git a/resources/sources/arduino/arduino_runtime_glue.cpp b/resources/sources/arduino/arduino_runtime_glue.cpp new file mode 100644 index 000000000..c318a9c0e --- /dev/null +++ b/resources/sources/arduino/arduino_runtime_glue.cpp @@ -0,0 +1,173 @@ +// arduino_runtime_glue.cpp — Arduino-side runtime shim. Equivalent role to +// runtime_v4_entry.cpp for the OpenPLC v4 .so build, but compiled into the +// Arduino library at src/ instead of into a daemon-loaded .so. +// +// arduino-cli does NOT auto-prepend to library .cpp files +// (only to the .ino), so every strucpp library body stays in a translation +// unit that never sees Arduino.h's macro pollution. +// +// External linkage requirements: +// - `g_config` is referenced by name (with type) from generated_debug.cpp +// via `extern ::strucpp::Configuration_CONFIG0 g_config;`. The symbol +// name and type must match here. +// - The buffer arrays (bool_input, int_input, etc.) are defined in the +// sketch's .ino and declared extern in openplc.h. We only read/write +// them here; the storage lives in the sketch's TU. + +#include "arduino_runtime_glue.h" +#include "openplc.h" +#include "generated.hpp" + +// --------------------------------------------------------------------------- +// Storage +// --------------------------------------------------------------------------- +strucpp::Configuration_CONFIG0 g_config; + +static strucpp::ProgramBase** all_programs = nullptr; +static uint32_t* task_divisors = nullptr; +static size_t total_programs = 0; + +unsigned long long base_tick_ns = 20000000ULL; +uint32_t scan_counter = 0; + +// --------------------------------------------------------------------------- +// GCD utility — used by discoverTasks for the base-tick computation +// --------------------------------------------------------------------------- +static uint64_t gcd(uint64_t a, uint64_t b) +{ + while (b) { + uint64_t t = b; + b = a % b; + a = t; + } + return a; +} + +// --------------------------------------------------------------------------- +// I/O binding: walk locatedVars[] and bind to openplc.h buffer pointers +// --------------------------------------------------------------------------- +void runtime_bind_located_vars() +{ + using namespace strucpp; + for (uint32_t i = 0; i < locatedVarsCount; ++i) { + LocatedVar& lv = locatedVars[i]; + if (!lv.pointer) continue; + + switch (lv.area) { + case LocatedArea::Input: + switch (lv.size) { + case LocatedSize::Bit: + bool_input[lv.byte_index][lv.bit_index] = (::IEC_BOOL*)lv.pointer; + break; + case LocatedSize::Word: + int_input[lv.byte_index] = (::IEC_UINT*)lv.pointer; + break; +#if !defined(__AVR_ATmega328P__) && !defined(__AVR_ATmega168__) && !defined(__AVR_ATmega32U4__) && !defined(__AVR_ATmega16U4__) + case LocatedSize::DWord: + case LocatedSize::LWord: + // dint_input / lint_input not available on all boards + break; +#endif + default: break; + } + break; + + case LocatedArea::Output: + switch (lv.size) { + case LocatedSize::Bit: + bool_output[lv.byte_index][lv.bit_index] = (::IEC_BOOL*)lv.pointer; + break; + case LocatedSize::Word: + int_output[lv.byte_index] = (::IEC_UINT*)lv.pointer; + break; +#if !defined(__AVR_ATmega328P__) && !defined(__AVR_ATmega168__) && !defined(__AVR_ATmega32U4__) && !defined(__AVR_ATmega16U4__) + case LocatedSize::DWord: + case LocatedSize::LWord: + // dint_output / lint_output not available on all boards + break; +#endif + default: break; + } + break; + + case LocatedArea::Memory: +#if !defined(__AVR_ATmega328P__) && !defined(__AVR_ATmega168__) && !defined(__AVR_ATmega32U4__) && !defined(__AVR_ATmega16U4__) + switch (lv.size) { + case LocatedSize::Word: + int_memory[lv.byte_index] = (::IEC_UINT*)lv.pointer; + break; + case LocatedSize::DWord: + dint_memory[lv.byte_index] = (::IEC_UDINT*)lv.pointer; + break; + case LocatedSize::LWord: + lint_memory[lv.byte_index] = (::IEC_ULINT*)lv.pointer; + break; + default: break; + } +#endif + break; + } + } +} + +// --------------------------------------------------------------------------- +// Task discovery: walk Configuration → Resource → Task and flatten +// programs into all_programs[] with per-program divisors derived from the +// GCD of task intervals. +// --------------------------------------------------------------------------- +void runtime_discover_tasks() +{ + uint64_t gcd_ns = 0; + size_t prog_count = 0; + + auto* resources = g_config.get_resources(); + for (size_t r = 0; r < g_config.get_resource_count(); ++r) { + for (size_t t = 0; t < resources[r].task_count; ++t) { + auto& task = resources[r].tasks[t]; + prog_count += task.program_count; + uint64_t interval = task.interval_ns > 0 ? task.interval_ns : 20000000ULL; + gcd_ns = (gcd_ns == 0) ? interval : gcd(gcd_ns, interval); + } + } + + if (gcd_ns == 0) gcd_ns = 20000000ULL; + base_tick_ns = gcd_ns; + + all_programs = new strucpp::ProgramBase*[prog_count]; + task_divisors = new uint32_t[prog_count]; + total_programs = prog_count; + + size_t idx = 0; + for (size_t r = 0; r < g_config.get_resource_count(); ++r) { + for (size_t t = 0; t < resources[r].task_count; ++t) { + auto& task = resources[r].tasks[t]; + uint64_t interval = task.interval_ns > 0 ? task.interval_ns : gcd_ns; + uint32_t divisor = (uint32_t)(interval / gcd_ns); + for (size_t p = 0; p < task.program_count; ++p) { + all_programs[idx] = task.programs[p]; + task_divisors[idx] = divisor; + ++idx; + } + } + } +} + +// --------------------------------------------------------------------------- +// One scan cycle: copy inputs → run scheduled programs → copy outputs → +// advance IEC TIME() so TON/TOF/TP can progress. +// --------------------------------------------------------------------------- +void runtime_plc_cycle() +{ + updateInputBuffers(); + + for (size_t i = 0; i < total_programs; ++i) { + if (task_divisors[i] == 0 || (scan_counter % task_divisors[i]) == 0) { + all_programs[i]->run(); + } + } + ++scan_counter; + + updateOutputBuffers(); + + strucpp::__CURRENT_TIME_NS += (int64_t)base_tick_ns; +} diff --git a/resources/sources/arduino/arduino_runtime_glue.h b/resources/sources/arduino/arduino_runtime_glue.h new file mode 100644 index 000000000..7f05ebf58 --- /dev/null +++ b/resources/sources/arduino/arduino_runtime_glue.h @@ -0,0 +1,49 @@ +// arduino_runtime_glue.h — sketch-facing surface for Arduino targets. +// +// Companion to runtime_v4_entry.cpp/.h: same role of bridging strucpp's C++ +// runtime ABI to a static host (here, an Arduino .ino), except the producer +// is the Arduino sketch rather than the OpenPLC v4 daemon. Lives in +// strucpp/runtime/ alongside the v4 shim so the runtime-ABI surface is +// owned in one place. +// +// Why a thin C-linkage header instead of just #include "generated.hpp" in +// the sketch: the Arduino build automatically prepends `#include +// ` to every .ino TU. Arduino.h defines preprocessor macros +// named DEFAULT / HIGH / LOW / PI / B0..B7 / INPUT / OUTPUT and others that +// collide with struct member names emitted by strucpp's library bodies +// (most visibly OSCAT's CONSTANTS_LANGUAGE, but the problem is general — +// IEC 61131-3 allows those identifiers as variable names). Keeping every +// strucpp class body out of the .ino's translation unit removes the entire +// class of collisions in one move. +// +// This header MUST stay free of: +// - any #include of generated.hpp or iec_*.hpp +// - any reference to namespace strucpp +// - any type whose name might be macro-replaced by Arduino.h + +#ifndef OPENPLC_ARDUINO_RUNTIME_GLUE_H +#define OPENPLC_ARDUINO_RUNTIME_GLUE_H + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +// Globals owned by arduino_runtime_glue.cpp, read by the sketch. +extern unsigned long long base_tick_ns; +extern uint32_t scan_counter; + +// Setup-time helpers (call once from setup()). +void runtime_bind_located_vars(); +void runtime_discover_tasks(); + +// Per-cycle helpers (call once per scan cycle from scheduler()/loop()). +void runtime_plc_cycle(); + +#ifdef __cplusplus +} +#endif + +#endif // OPENPLC_ARDUINO_RUNTIME_GLUE_H diff --git a/resources/sources/arduino/openplc.h b/resources/sources/arduino/openplc.h index 1c8bc4972..2f398ba56 100644 --- a/resources/sources/arduino/openplc.h +++ b/resources/sources/arduino/openplc.h @@ -63,30 +63,15 @@ extern IEC_ULINT *lint_memory[MAX_MEMORY_LWORD]; #endif -//MatIEC Compiler -void config_run__(unsigned long tick); -void config_init__(void); - -//Common task timer -extern unsigned long long common_ticktime__; -#define DELAY_TIME 20 - -//glueVars.c -void updateTime(); -void glueVars(); - -//OpenPLC Buffers -//Booleans - -//extern IEC_BOOL buffer_bool_input[MAX_DIGITAL_INPUT/8][8]; -//extern IEC_BOOL buffer_bool_output[MAX_DIGITAL_OUTPUT/8][8]; -//extern IEC_UINT buffer_int_input[MAX_ANALOG_INPUT]; -//extern IEC_UINT buffer_int_output[MAX_ANALOG_OUTPUT]; - -//Hardware Layer +//Hardware Layer (implemented in arduino.cpp HAL file, compiled as extern "C") +#ifdef __cplusplus +extern "C" { +#endif void hardwareInit(); void updateInputBuffers(); void updateOutputBuffers(); -void setupCycleDelay(unsigned long long cycle_time); -void cycleDelay(); +#ifdef __cplusplus +} +#endif + #endif diff --git a/resources/sources/avr-libstdcpp/.gitignore b/resources/sources/avr-libstdcpp/.gitignore new file mode 100644 index 000000000..886e04000 --- /dev/null +++ b/resources/sources/avr-libstdcpp/.gitignore @@ -0,0 +1,2 @@ +examples/**/build + diff --git a/resources/sources/avr-libstdcpp/COPYING.MPLv2 b/resources/sources/avr-libstdcpp/COPYING.MPLv2 new file mode 100644 index 000000000..d0a1fa148 --- /dev/null +++ b/resources/sources/avr-libstdcpp/COPYING.MPLv2 @@ -0,0 +1,373 @@ +Mozilla Public License Version 2.0 +================================== + +1. Definitions +-------------- + +1.1. "Contributor" + means each individual or legal entity that creates, contributes to + the creation of, or owns Covered Software. + +1.2. "Contributor Version" + means the combination of the Contributions of others (if any) used + by a Contributor and that particular Contributor's Contribution. + +1.3. "Contribution" + means Covered Software of a particular Contributor. + +1.4. "Covered Software" + means Source Code Form to which the initial Contributor has attached + the notice in Exhibit A, the Executable Form of such Source Code + Form, and Modifications of such Source Code Form, in each case + including portions thereof. + +1.5. "Incompatible With Secondary Licenses" + means + + (a) that the initial Contributor has attached the notice described + in Exhibit B to the Covered Software; or + + (b) that the Covered Software was made available under the terms of + version 1.1 or earlier of the License, but not also under the + terms of a Secondary License. + +1.6. "Executable Form" + means any form of the work other than Source Code Form. + +1.7. "Larger Work" + means a work that combines Covered Software with other material, in + a separate file or files, that is not Covered Software. + +1.8. "License" + means this document. + +1.9. "Licensable" + means having the right to grant, to the maximum extent possible, + whether at the time of the initial grant or subsequently, any and + all of the rights conveyed by this License. + +1.10. "Modifications" + means any of the following: + + (a) any file in Source Code Form that results from an addition to, + deletion from, or modification of the contents of Covered + Software; or + + (b) any new file in Source Code Form that contains any Covered + Software. + +1.11. "Patent Claims" of a Contributor + means any patent claim(s), including without limitation, method, + process, and apparatus claims, in any patent Licensable by such + Contributor that would be infringed, but for the grant of the + License, by the making, using, selling, offering for sale, having + made, import, or transfer of either its Contributions or its + Contributor Version. + +1.12. "Secondary License" + means either the GNU General Public License, Version 2.0, the GNU + Lesser General Public License, Version 2.1, the GNU Affero General + Public License, Version 3.0, or any later versions of those + licenses. + +1.13. "Source Code Form" + means the form of the work preferred for making modifications. + +1.14. "You" (or "Your") + means an individual or a legal entity exercising rights under this + License. For legal entities, "You" includes any entity that + controls, is controlled by, or is under common control with You. For + purposes of this definition, "control" means (a) the power, direct + or indirect, to cause the direction or management of such entity, + whether by contract or otherwise, or (b) ownership of more than + fifty percent (50%) of the outstanding shares or beneficial + ownership of such entity. + +2. License Grants and Conditions +-------------------------------- + +2.1. Grants + +Each Contributor hereby grants You a world-wide, royalty-free, +non-exclusive license: + +(a) under intellectual property rights (other than patent or trademark) + Licensable by such Contributor to use, reproduce, make available, + modify, display, perform, distribute, and otherwise exploit its + Contributions, either on an unmodified basis, with Modifications, or + as part of a Larger Work; and + +(b) under Patent Claims of such Contributor to make, use, sell, offer + for sale, have made, import, and otherwise transfer either its + Contributions or its Contributor Version. + +2.2. Effective Date + +The licenses granted in Section 2.1 with respect to any Contribution +become effective for each Contribution on the date the Contributor first +distributes such Contribution. + +2.3. Limitations on Grant Scope + +The licenses granted in this Section 2 are the only rights granted under +this License. No additional rights or licenses will be implied from the +distribution or licensing of Covered Software under this License. +Notwithstanding Section 2.1(b) above, no patent license is granted by a +Contributor: + +(a) for any code that a Contributor has removed from Covered Software; + or + +(b) for infringements caused by: (i) Your and any other third party's + modifications of Covered Software, or (ii) the combination of its + Contributions with other software (except as part of its Contributor + Version); or + +(c) under Patent Claims infringed by Covered Software in the absence of + its Contributions. + +This License does not grant any rights in the trademarks, service marks, +or logos of any Contributor (except as may be necessary to comply with +the notice requirements in Section 3.4). + +2.4. Subsequent Licenses + +No Contributor makes additional grants as a result of Your choice to +distribute the Covered Software under a subsequent version of this +License (see Section 10.2) or under the terms of a Secondary License (if +permitted under the terms of Section 3.3). + +2.5. Representation + +Each Contributor represents that the Contributor believes its +Contributions are its original creation(s) or it has sufficient rights +to grant the rights to its Contributions conveyed by this License. + +2.6. Fair Use + +This License is not intended to limit any rights You have under +applicable copyright doctrines of fair use, fair dealing, or other +equivalents. + +2.7. Conditions + +Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted +in Section 2.1. + +3. Responsibilities +------------------- + +3.1. Distribution of Source Form + +All distribution of Covered Software in Source Code Form, including any +Modifications that You create or to which You contribute, must be under +the terms of this License. You must inform recipients that the Source +Code Form of the Covered Software is governed by the terms of this +License, and how they can obtain a copy of this License. You may not +attempt to alter or restrict the recipients' rights in the Source Code +Form. + +3.2. Distribution of Executable Form + +If You distribute Covered Software in Executable Form then: + +(a) such Covered Software must also be made available in Source Code + Form, as described in Section 3.1, and You must inform recipients of + the Executable Form how they can obtain a copy of such Source Code + Form by reasonable means in a timely manner, at a charge no more + than the cost of distribution to the recipient; and + +(b) You may distribute such Executable Form under the terms of this + License, or sublicense it under different terms, provided that the + license for the Executable Form does not attempt to limit or alter + the recipients' rights in the Source Code Form under this License. + +3.3. Distribution of a Larger Work + +You may create and distribute a Larger Work under terms of Your choice, +provided that You also comply with the requirements of this License for +the Covered Software. If the Larger Work is a combination of Covered +Software with a work governed by one or more Secondary Licenses, and the +Covered Software is not Incompatible With Secondary Licenses, this +License permits You to additionally distribute such Covered Software +under the terms of such Secondary License(s), so that the recipient of +the Larger Work may, at their option, further distribute the Covered +Software under the terms of either this License or such Secondary +License(s). + +3.4. Notices + +You may not remove or alter the substance of any license notices +(including copyright notices, patent notices, disclaimers of warranty, +or limitations of liability) contained within the Source Code Form of +the Covered Software, except that You may alter any license notices to +the extent required to remedy known factual inaccuracies. + +3.5. Application of Additional Terms + +You may choose to offer, and to charge a fee for, warranty, support, +indemnity or liability obligations to one or more recipients of Covered +Software. However, You may do so only on Your own behalf, and not on +behalf of any Contributor. You must make it absolutely clear that any +such warranty, support, indemnity, or liability obligation is offered by +You alone, and You hereby agree to indemnify every Contributor for any +liability incurred by such Contributor as a result of warranty, support, +indemnity or liability terms You offer. You may include additional +disclaimers of warranty and limitations of liability specific to any +jurisdiction. + +4. Inability to Comply Due to Statute or Regulation +--------------------------------------------------- + +If it is impossible for You to comply with any of the terms of this +License with respect to some or all of the Covered Software due to +statute, judicial order, or regulation then You must: (a) comply with +the terms of this License to the maximum extent possible; and (b) +describe the limitations and the code they affect. Such description must +be placed in a text file included with all distributions of the Covered +Software under this License. Except to the extent prohibited by statute +or regulation, such description must be sufficiently detailed for a +recipient of ordinary skill to be able to understand it. + +5. Termination +-------------- + +5.1. The rights granted under this License will terminate automatically +if You fail to comply with any of its terms. However, if You become +compliant, then the rights granted under this License from a particular +Contributor are reinstated (a) provisionally, unless and until such +Contributor explicitly and finally terminates Your grants, and (b) on an +ongoing basis, if such Contributor fails to notify You of the +non-compliance by some reasonable means prior to 60 days after You have +come back into compliance. Moreover, Your grants from a particular +Contributor are reinstated on an ongoing basis if such Contributor +notifies You of the non-compliance by some reasonable means, this is the +first time You have received notice of non-compliance with this License +from such Contributor, and You become compliant prior to 30 days after +Your receipt of the notice. + +5.2. If You initiate litigation against any entity by asserting a patent +infringement claim (excluding declaratory judgment actions, +counter-claims, and cross-claims) alleging that a Contributor Version +directly or indirectly infringes any patent, then the rights granted to +You by any and all Contributors for the Covered Software under Section +2.1 of this License shall terminate. + +5.3. In the event of termination under Sections 5.1 or 5.2 above, all +end user license agreements (excluding distributors and resellers) which +have been validly granted by You or Your distributors under this License +prior to termination shall survive termination. + +************************************************************************ +* * +* 6. Disclaimer of Warranty * +* ------------------------- * +* * +* Covered Software is provided under this License on an "as is" * +* basis, without warranty of any kind, either expressed, implied, or * +* statutory, including, without limitation, warranties that the * +* Covered Software is free of defects, merchantable, fit for a * +* particular purpose or non-infringing. The entire risk as to the * +* quality and performance of the Covered Software is with You. * +* Should any Covered Software prove defective in any respect, You * +* (not any Contributor) assume the cost of any necessary servicing, * +* repair, or correction. This disclaimer of warranty constitutes an * +* essential part of this License. No use of any Covered Software is * +* authorized under this License except under this disclaimer. * +* * +************************************************************************ + +************************************************************************ +* * +* 7. Limitation of Liability * +* -------------------------- * +* * +* Under no circumstances and under no legal theory, whether tort * +* (including negligence), contract, or otherwise, shall any * +* Contributor, or anyone who distributes Covered Software as * +* permitted above, be liable to You for any direct, indirect, * +* special, incidental, or consequential damages of any character * +* including, without limitation, damages for lost profits, loss of * +* goodwill, work stoppage, computer failure or malfunction, or any * +* and all other commercial damages or losses, even if such party * +* shall have been informed of the possibility of such damages. This * +* limitation of liability shall not apply to liability for death or * +* personal injury resulting from such party's negligence to the * +* extent applicable law prohibits such limitation. Some * +* jurisdictions do not allow the exclusion or limitation of * +* incidental or consequential damages, so this exclusion and * +* limitation may not apply to You. * +* * +************************************************************************ + +8. Litigation +------------- + +Any litigation relating to this License may be brought only in the +courts of a jurisdiction where the defendant maintains its principal +place of business and such litigation shall be governed by laws of that +jurisdiction, without reference to its conflict-of-law provisions. +Nothing in this Section shall prevent a party's ability to bring +cross-claims or counter-claims. + +9. Miscellaneous +---------------- + +This License represents the complete agreement concerning the subject +matter hereof. If any provision of this License is held to be +unenforceable, such provision shall be reformed only to the extent +necessary to make it enforceable. Any law or regulation which provides +that the language of a contract shall be construed against the drafter +shall not be used to construe this License against a Contributor. + +10. Versions of the License +--------------------------- + +10.1. New Versions + +Mozilla Foundation is the license steward. Except as provided in Section +10.3, no one other than the license steward has the right to modify or +publish new versions of this License. Each version will be given a +distinguishing version number. + +10.2. Effect of New Versions + +You may distribute the Covered Software under the terms of the version +of the License under which You originally received the Covered Software, +or under the terms of any subsequent version published by the license +steward. + +10.3. Modified Versions + +If you create software not governed by this License, and you want to +create a new license for such software, you may create and use a +modified version of this License if you rename the license and remove +any references to the name of the license steward (except to note that +such modified license differs from this License). + +10.4. Distributing Source Code Form that is Incompatible With Secondary +Licenses + +If You choose to distribute Source Code Form that is Incompatible With +Secondary Licenses under the terms of this version of the License, the +notice described in Exhibit B of this License must be attached. + +Exhibit A - Source Code Form License Notice +------------------------------------------- + + This Source Code Form is subject to the terms of the Mozilla Public + License, v. 2.0. If a copy of the MPL was not distributed with this + file, You can obtain one at https://mozilla.org/MPL/2.0/. + +If it is not possible or desirable to put the notice in a particular +file, then You may include the notice in a location (such as a LICENSE +file in a relevant directory) where a recipient would be likely to look +for such a notice. + +You may add additional accurate notices of copyright ownership. + +Exhibit B - "Incompatible With Secondary Licenses" Notice +--------------------------------------------------------- + + This Source Code Form is "Incompatible With Secondary Licenses", as + defined by the Mozilla Public License, v. 2.0. diff --git a/resources/sources/avr-libstdcpp/COPYING3 b/resources/sources/avr-libstdcpp/COPYING3 new file mode 100644 index 000000000..f288702d2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/COPYING3 @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/resources/sources/avr-libstdcpp/OPENPLC_MODIFICATIONS.md b/resources/sources/avr-libstdcpp/OPENPLC_MODIFICATIONS.md new file mode 100644 index 000000000..13c5863a9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/OPENPLC_MODIFICATIONS.md @@ -0,0 +1,35 @@ +# OpenPLC Editor fork of modm-io/avr-libstdcpp + +This is a vendored copy of [modm-io/avr-libstdcpp](https://github.com/modm-io/avr-libstdcpp) +with two small additions required for STruC++ generated code to compile on Arduino's +AVR GCC 7.3 toolchain. + +## Upstream + +- Repository: https://github.com/modm-io/avr-libstdcpp +- License: GPLv3 with GCC Runtime Library Exception (see `COPYING3` and `COPYING.MPLv2`) +- Clone date: kept in sync with STruC++ runtime requirements + +## Modifications + +### 1. Added `include/string` (stub) + +Upstream intentionally excludes `` because `std::string` requires heap + exceptions, +neither appropriate for AVR. STruC++ generated code `#include`s `` unconditionally +in its header preamble but never actually uses `std::string` (it uses its own stack-allocated +`IECString` template). The stub file is empty — it just satisfies the include directive. + +### 2. Added `strtoll` / `strtoull` shims in `include/cstdlib` + +AVR libc does not provide 64-bit string conversion functions. STruC++'s `iec_string.hpp` +uses `std::strtoll`/`std::strtoull` for IEC `LINT`/`ULINT` STRING conversions. Added inline +shims inside `namespace std` that fall back to 32-bit `strtol`/`strtoul`. See the `#ifdef +__AVR__` block at the end of `cstdlib`. + +## Usage + +Added to the compiler's include path via `-I` (NOT `-isystem`) when compiling for AVR +boards. The Arduino AVR GCC 7.3 preprocessor has a bug where `-isystem` headers are +treated as C-linkage, causing "template with C linkage" errors. Using `-I` avoids this. + +See `src/backend/editor/compiler/compiler-module.ts` `handleCompileArduinoProgram()`. diff --git a/resources/sources/avr-libstdcpp/README.md b/resources/sources/avr-libstdcpp/README.md new file mode 100644 index 000000000..0fff5319b --- /dev/null +++ b/resources/sources/avr-libstdcpp/README.md @@ -0,0 +1,359 @@ +# avr-libstdcpp: libstdc++ port for avr-gcc +[![Build Status](https://github.com/modm-io/avr-libstdcpp/actions/workflows/compile_examples.yml/badge.svg)](https://github.com/modm-io/avr-libstdcpp/actions) +================== + +`avr-libstdcpp` is a partial, non-fully-tested +implementation of the C++ standard library and its STL. +It is intended to be used with `avr-gcc`. + +Many features of modern C++11,14,17 and 20 are supported. + +`avr-gcc` does not have a complete C++ standard library nor does it include an STL implementation. +The `avr-libstdcpp` port (even though not-fully-tested +and only partially full/complete) will, nonetheless, +be useful for those interested in making more comprehensive utilization +of C++, including its standard library, with a modern `avr-gcc` compiler. + +## Historical origins + +The `avr-libstdcpp` library traces its own origins to existing +GNU/GCC C++ standard library implementation(s), themselves targeting +embedded systems. This work is essentially an even-more +_embedded_-_friendly_ adaptation of the aforementioned work. + +The `avr-libstdcpp` port began in 2018 with an initial import +of a GNU/GCC-based C++ standard library from GCC 8. +A second import of a GNU/GCC-based C++ standard library from GCC 10 +in 2020 modernized the port to include many contemporary C++20 features. + +## Using the library + +- Add the `avr-libstdcpp/include` path to the standard `-isystem` (or `-I`) include path(s) of the compiler on the command line. +- Upon doing this, include standard library headers in the usual way (i.e., `#include `, `#include `, `#include `, etc.). +- There are also several source files located in the [src directory](./src). Some of these may potentially be needed. +- For instance, when doing floating-point mathematical calculations with the `` library, the file [`math.cc`](./src/math.cc) located [here](./src) needs to be added as a normal source file to your project. + + +For straightforward header-only use, for example, +simply add the `-isystem` (or alternatively the `-I`) include path +to your particular location of `avr-libstdcpp/include` on the command line... + +```sh +avr-g++ -O2 -x c++ -isystem /my_path/avr-libstdcpp/include -mmcu=atmega328p test.cpp -o test.elf +``` + +... and seamlessly use standard library headers in your code. + +```cpp +#include +#include + +std::array a { 1, 2, 3 }; + +int main() +{ + // 6 + auto sum = std::accumulate(a.cbegin(), a.cend(), 0); + + static_cast(sum); +} +``` + +Additional straightforward code samples exercising standard library usage +can be found in the [examples](./examples) folder. + +## Using the library with MICROCHIP's ATMEL Studio + +`avr-libstdcpp` can be successfully used with MICROCHIP's ATMEL Studio. +The include path of the headers needs to be added to the project settings in the normal way. +Add also any of the necessary source files, as described in the section above. + +This is an advanced use of `avr-libstdcpp` in combination with MICROCHIP's ATMEL Studio +because the underlying GCC compiler used with ATMEL Studio also needs to be +upgraded to a much more modern one than the `avr-gcc` 5 +delivered in the standard installation of this studio. + +An [informative thread](https://github.com/modm-io/avr-libstdcpp/issues/17#issuecomment-1098241768) +provides a few more details on how to use `avr-libstdcpp` with MICROCHIP's ATMEL Studio. + +## Guidance for tiny bare-metal systems + +### Very helpful go-to libraries + +In general the C++ standard library is intended +to be written and implemented in a resource-sensitive +fashion. This includes efforts to save on both +memory as well as run-time. +In fact, C++ standard library functions and algorithms +have, in general, been specifically written and tuned by +the library authors with efficiency aspects in mind. +In particular, library components compile reliably and quickly +and also lend themselves well to compiler optimization. + +Some library components, however, are particularly well-suited +for bare-metal microcontroller programming. +These can be exceptionally helpful when used properly and sensibly +in tiny bare-metal microcontroller environments. + +A subjective list of these the libraries/headers +and their main uses includes, but is not limited to,: + +- `` for containers having known, fixed size. +- `` for standard algorithms such as sorting, minimax, sequential operations, etc. +- `` for projects requiring floating-point mathematical functions such as `std::sin()`, `std::exp()`, `std::frexp()` and many more. For some mathematical uses, it might be necessary to include [`math.cc`](./src/math.cc) in your project. This source file is located [here](./src). +- `` which defines integral types having specified widths residing within `namespace std` like `std::uint8_t`. +- `` offering compile-time query of numeric limits of built-in types. +- `` featuring a collection of useful numeric algorithms such as `std::accumulate()`, etc. +- `` for compile-time decisions based on types. + +With these libraries alone, the entire project can benefit +from a great deal of the standard library's power without compromising +in any way on performance or sleek memory footprint. +This is because these libaries are typically lean, fast and require no additional storage. + +The following non-trivial, real-world example, for instance, +wraps instances of an overly-simplified LED class abstraction +as object-references in an `std::array`. +Once stored, the application exercises the LED's toggle +function in an algorithmic loop with `toggle()`-method call +expressed via lambda function. + +```cpp +#include +#include +#include + +class led +{ +public: + led() = default; + + auto toggle() -> void { } +}; + +led led0; +led led1; +led led2; + +using led_ref_type = std::reference_wrapper; + +std::array led_refs = +{ + led0, + led1, + led2 +}; + +int main() +{ + for(;;) + { + std::for_each(led_refs.begin(), + led_refs.end(), + [](led& lr) { lr.toggle(); }); + } +} +``` + +This nifty little example is terse, expressive and powerful. +It makes use of parts of ``, `` and `` +to greatly simplify the programming within a non-trivial +microcontroller situation. + +This example is key because it combines the domains +of object-oriented programming with the templated +algorithms and wrappers of the STL to assist +in our microcontroller world. + +### Libraries requiring more design considerations + +Some C++ library and STL artifacts, however, +require more careful design considerations +regarding memory allocation and management. + +Consider, for instance, `std::vector` from the `` library. +Vector creates a flexibly-sized array-like collection +of items of any kind, depending on the template parameter. + +For instance: + +```cpp +#include + +// A vector of 3 integers. +std::vector v { 1, 2, 3 }; +``` + +See also the [main.cpp](./examples/vector/main.cpp) file +in the [./examples/vector](./examples/vector) directory. + +This vector requires storage for three integers which, +on the `avr-gcc` platform is 6 bytes. The storage is managed +through vector's _second_, less well-known template parameter. +In other words, + +```cpp +namespace std { + +// Forward declaration of the vector template class. +template> +class vector; + +} +``` + +Using containers requires memory allocation with a so-called allocator. +If none is specified, as in our code snippet, the default allocator +from namespace `std` for the templated type `T` of the vector is +automatically selected. + +Good embeddable self-written custom allocators are essential for +using such containers so that memory could be managed with +a self-written memory pool, an off-chip memory device, etc. +A common selection is a pool of static memory creating a so-called +_ring_ _allocator_. This is an intermetiate/advanced topic +which will refine STL use _on_ _the_ _metal_ and +also allow for flexible template use in these resource-sensitive +realms. + +## Notable adaptions and limitations + +Some parts of the C++ standard library are not well suited for +tiny bare-metal systems. These include some memory-intensive +and/or hardware-intensive library artifacts. + +`avr-libstdcpp` has the following known adaptions and limitations. + +- **I/O streaming and RTTI:** I/O streaming and run-time type information (RTTI) are known +to be resource-intensive and could be disruptive on tiny +embedded platforms. An effort has been made to essentially +remove both these library dependencies and their +associated codes. + +- **exceptions:** Exceptions are also difficult to efficiently +implement on tiny embedded platforms and this library port avoids using exceptions. +The headers `` and ``, their dependencies, +and their directly relevant code sequences have been removed. +Simple mechanisms such as those found in `` +and ``, however, remain mostly available. + +- **``:** The `` library is being handled +specifically in the draft of +[avr-libstdcpp/pull/36](https://github.com/modm-io/avr-libstdcpp/pull/36). + +- **``:** There is no source of entropy whatsoever on these platforms +in their standard configuration. So `std::random_device` +has been removed. + +- **Hashing:** Hashing has been optimized for tiny architectures and uses a rudimentary 16-bit CRC algorithm. + +- **``:** Only certain judiciously selected clock functions from the `` library are implemented. +These include `std::chrono::high_resolution_clock` and `std::chrono::steady_clock`. When using +these clocks, it is required to implement the clock's static method +`now()` in a project-specific fashion. This is because +the library's authors can not in a generic way implement any +microcontroller-specific clock(s) since this requires detailed knowledge +of the underlying microcontroller peripherie. + +- **`int`, `size_t`, `ptrdiff_t` and the like:** Data types such as +`int`, and `size_t` and `ptrdiff_t` (which are aliased to +`unsigned`/`signed` versions of `int`) +are generally limited to 16-bits in width +on tiny `avr-gcc` platforms. Although this is a compiler attribute, +it has strong influence on the library (particularly the STL) +implementation because these data types are used copiously therein. +This compiler attribute limits ranges, indexes, etc. to 16-bits. +With the compiler switch `-mint8`, the built-in type `int` +is only 8 bits wide and extreme range limitations +are expected to make STL use tricky. + +- **``:** In `avr-gcc` 10 and higher, the built-in data types +`double` and `long double` can be either 32 or 64 bits in width. +The widths depend on the compiler command line options `-mdouble=32` +(alternatively `-mdouble=64`) and/or `-mlong-double=32` +(alternatively `-mlong-double=64`). Standard floating-point +`` functions such as `std::sin()`, `std::cos()`, +`std::exp()` and the like will, therefore, have input and output +widths according to these command line options. + +## C++20 `constexpr` support + +The following is a rather advanced, highly useful topic. +When using C++20, `constexpr` construction, assignment and evaluation +of various algorithms can and often will be generally +compile-time constant (i.e, via consistent use of C++20 `constexpr`-ness). + +As a result of this, STL algorithms that use compile-time constant inputs are, in fact, +evaluated at compile time in C++20. This lets us perform a strong, +purposeful shift of algorithmic complexity _to_-_the_-_left_. +In other words, we shift algorithmic complexity _into_ the compile-time +stage of code development and _away from_ the precious RAM-ROM-space/cycles +of the compiled running code. + +In the following code, for instance, we revisit the `std::array`/`` +example from above. The variation below exhibits complete compile-time +evaluation of the algorithmic result. + +To take the deep dive in this topic, follow all the useful compile-time +preprocessor symbols such as +`__cpp_lib_constexpr_algorithms`, `__cpp_lib_constexpr_numeric`, and many more +in [feature testing](https://en.cppreference.com/w/cpp/feature_test). + +```cpp +#include +#include + +#if (defined(__cpp_lib_constexpr_numeric) && (__cpp_lib_constexpr_numeric>=201911L)) +#define MODM_CONSTEXPR constexpr +#define MODM_CONSTEXPR_NUMERIC_IS_CONSTEXPR 1 +#else +#define MODM_CONSTEXPR +#define MODM_CONSTEXPR_NUMERIC_IS_CONSTEXPR 0 +#endif + +MODM_CONSTEXPR std::array a { 1, 2, 3 }; + +int main() +{ + // 6 + auto MODM_CONSTEXPR sum = std::accumulate(a.cbegin(), a.cend(), 0); + + #if (MODM_CONSTEXPR_NUMERIC_IS_CONSTEXPR == 1) + static_assert(sum == 6, "Error: Unexpected std::accumulate result!"); + #endif + + return (sum == 6 ? 0 : -1); +} +``` + +See also the [numeric.cpp](./examples/numeric/numeric.cpp) file +in the [/examples/numeric](./examples/numeric) directory. + +## Additional details + +`avr-libstdcpp` is intended for a modern `avr-gcc` +such as the port available in the [modm-io project](https://github.com/modm-io/avr-gcc) +repository. Tests show usability for `avr-gcc` 7 through 15. + +This library has been checked for compatibility on `avr-gcc` +with language standards C++11,14,17,20,23 and 2c. + +Using the port way back to `avr-gcc` 5 does not work +at the moment with today's form of the checked-in library, +and `avr-gcc` 7 or higher is required. +This is because the very old compiler lexical parsers are not capable +of properly handling some of the library's template code. +See also [avr-libstdcpp/issues/15](https://github.com/modm-io/avr-libstdcpp/issues/15) +which is closed and includes justification for its closure. + +## Licensing + +The library source files in [`src/`](./src/) +and the library include files in [`include/` and its subfolders](./include/) +(with two exceptions for the sources, as mentioned below) +are licensed under [GNU General Public License Version 3](./COPYING3) or higher. + +All of the [example codes](./examples/) and also two library source files +(namely `functexcept.cc` and `math.cc` in [`src/`](./src/)) +are subject to the terms of the [Mozilla Public License Version 2.0](./COPYING.MPLv2). diff --git a/resources/sources/avr-libstdcpp/include/algorithm b/resources/sources/avr-libstdcpp/include/algorithm new file mode 100644 index 000000000..8000e3218 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/algorithm @@ -0,0 +1,67 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/algorithm + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_ALGORITHM +#define _GLIBCXX_ALGORITHM 1 + +#pragma GCC system_header + +#include // UK-300. +#include +#include +#if __cplusplus > 201703L +# include +#endif + +#endif /* _GLIBCXX_ALGORITHM */ diff --git a/resources/sources/avr-libstdcpp/include/any b/resources/sources/avr-libstdcpp/include/any new file mode 100644 index 000000000..39fc77082 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/any @@ -0,0 +1,626 @@ +// -*- C++ -*- + +// Copyright (C) 2014-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/any + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_ANY +#define _GLIBCXX_ANY 1 + +#pragma GCC system_header + +#if __cplusplus >= 201703L + +#if __cpp_rtti +#include +#else +namespace std +{ + class type_info; +} +#endif // __cpp_rtti + +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup utilities + * @{ + */ + +#define __cpp_lib_any 201606L + + /** + * @brief A type-safe container of any type. + * + * An @c any object's state is either empty or it stores a contained object + * of CopyConstructible type. + */ + class any + { + // Holds either pointer to a heap object or the contained object itself. + union _Storage + { + constexpr _Storage() : _M_ptr{nullptr} {} + + // Prevent trivial copies of this type, buffer might hold a non-POD. + _Storage(const _Storage&) = delete; + _Storage& operator=(const _Storage&) = delete; + + void* _M_ptr; + aligned_storage::type _M_buffer; + }; + + template, + bool _Fits = (sizeof(_Tp) <= sizeof(_Storage)) + && (alignof(_Tp) <= alignof(_Storage))> + using _Internal = std::integral_constant; + + template + struct _Manager_internal; // uses small-object optimization + + template + struct _Manager_external; // creates contained object on the heap + + template + using _Manager = conditional_t<_Internal<_Tp>::value, + _Manager_internal<_Tp>, + _Manager_external<_Tp>>; + + template> + using _Decay_if_not_any = enable_if_t, _VTp>; + + /// Emplace with an object created from @p __args as the contained object. + template > + void __do_emplace(_Args&&... __args) + { + reset(); + _Mgr::_S_create(_M_storage, std::forward<_Args>(__args)...); + _M_manager = &_Mgr::_S_manage; + } + + /// Emplace with an object created from @p __il and @p __args as + /// the contained object. + template > + void __do_emplace(initializer_list<_Up> __il, _Args&&... __args) + { + reset(); + _Mgr::_S_create(_M_storage, __il, std::forward<_Args>(__args)...); + _M_manager = &_Mgr::_S_manage; + } + + template + using __any_constructible + = enable_if<__and_, + is_constructible<_Tp, _Args...>>::value, + _Res>; + + template + using __any_constructible_t + = typename __any_constructible::type; + + template + using __emplace_t + = typename __any_constructible<_VTp&, _VTp, _Args...>::type; + + public: + // construct/destruct + + /// Default constructor, creates an empty object. + constexpr any() noexcept : _M_manager(nullptr) { } + + /// Copy constructor, copies the state of @p __other + any(const any& __other) + { + if (!__other.has_value()) + _M_manager = nullptr; + else + { + _Arg __arg; + __arg._M_any = this; + __other._M_manager(_Op_clone, &__other, &__arg); + } + } + + /** + * @brief Move constructor, transfer the state from @p __other + * + * @post @c !__other.has_value() (this postcondition is a GNU extension) + */ + any(any&& __other) noexcept + { + if (!__other.has_value()) + _M_manager = nullptr; + else + { + _Arg __arg; + __arg._M_any = this; + __other._M_manager(_Op_xfer, &__other, &__arg); + } + } + + /// Construct with a copy of @p __value as the contained object. + template , + typename _Mgr = _Manager<_VTp>, + enable_if_t::value + && !__is_in_place_type<_VTp>::value, bool> = true> + any(_Tp&& __value) + : _M_manager(&_Mgr::_S_manage) + { + _Mgr::_S_create(_M_storage, std::forward<_Tp>(__value)); + } + + /// Construct with an object created from @p __args as the contained object. + template , + typename _Mgr = _Manager<_VTp>, + __any_constructible_t<_VTp, _Args&&...> = false> + explicit + any(in_place_type_t<_Tp>, _Args&&... __args) + : _M_manager(&_Mgr::_S_manage) + { + _Mgr::_S_create(_M_storage, std::forward<_Args>(__args)...); + } + + /// Construct with an object created from @p __il and @p __args as + /// the contained object. + template , typename _Mgr = _Manager<_VTp>, + __any_constructible_t<_VTp, initializer_list<_Up>, + _Args&&...> = false> + explicit + any(in_place_type_t<_Tp>, initializer_list<_Up> __il, _Args&&... __args) + : _M_manager(&_Mgr::_S_manage) + { + _Mgr::_S_create(_M_storage, __il, std::forward<_Args>(__args)...); + } + + /// Destructor, calls @c reset() + ~any() { reset(); } + + // assignments + + /// Copy the state of another object. + any& + operator=(const any& __rhs) + { + *this = any(__rhs); + return *this; + } + + /** + * @brief Move assignment operator + * + * @post @c !__rhs.has_value() (not guaranteed for other implementations) + */ + any& + operator=(any&& __rhs) noexcept + { + if (!__rhs.has_value()) + reset(); + else if (this != &__rhs) + { + reset(); + _Arg __arg; + __arg._M_any = this; + __rhs._M_manager(_Op_xfer, &__rhs, &__arg); + } + return *this; + } + + /// Store a copy of @p __rhs as the contained object. + template + enable_if_t>::value, any&> + operator=(_Tp&& __rhs) + { + *this = any(std::forward<_Tp>(__rhs)); + return *this; + } + + /// Emplace with an object created from @p __args as the contained object. + template + __emplace_t, _Args...> + emplace(_Args&&... __args) + { + using _VTp = decay_t<_Tp>; + __do_emplace<_VTp>(std::forward<_Args>(__args)...); + any::_Arg __arg; + this->_M_manager(any::_Op_access, this, &__arg); + return *static_cast<_VTp*>(__arg._M_obj); + } + + /// Emplace with an object created from @p __il and @p __args as + /// the contained object. + template + __emplace_t, initializer_list<_Up>, _Args&&...> + emplace(initializer_list<_Up> __il, _Args&&... __args) + { + using _VTp = decay_t<_Tp>; + __do_emplace<_VTp, _Up>(__il, std::forward<_Args>(__args)...); + any::_Arg __arg; + this->_M_manager(any::_Op_access, this, &__arg); + return *static_cast<_VTp*>(__arg._M_obj); + } + + // modifiers + + /// If not empty, destroy the contained object. + void reset() noexcept + { + if (has_value()) + { + _M_manager(_Op_destroy, this, nullptr); + _M_manager = nullptr; + } + } + + /// Exchange state with another object. + void swap(any& __rhs) noexcept + { + if (!has_value() && !__rhs.has_value()) + return; + + if (has_value() && __rhs.has_value()) + { + if (this == &__rhs) + return; + + any __tmp; + _Arg __arg; + __arg._M_any = &__tmp; + __rhs._M_manager(_Op_xfer, &__rhs, &__arg); + __arg._M_any = &__rhs; + _M_manager(_Op_xfer, this, &__arg); + __arg._M_any = this; + __tmp._M_manager(_Op_xfer, &__tmp, &__arg); + } + else + { + any* __empty = !has_value() ? this : &__rhs; + any* __full = !has_value() ? &__rhs : this; + _Arg __arg; + __arg._M_any = __empty; + __full->_M_manager(_Op_xfer, __full, &__arg); + } + } + + // observers + + /// Reports whether there is a contained object or not. + bool has_value() const noexcept { return _M_manager != nullptr; } + +#if __cpp_rtti + /// The @c typeid of the contained object, or @c typeid(void) if empty. + const type_info& type() const noexcept + { + if (!has_value()) + return typeid(void); + _Arg __arg; + _M_manager(_Op_get_type_info, this, &__arg); + return *__arg._M_typeinfo; + } +#endif + + template + static constexpr bool __is_valid_cast() + { return __or_, is_copy_constructible<_Tp>>::value; } + + private: + enum _Op { + _Op_access, _Op_get_type_info, _Op_clone, _Op_destroy, _Op_xfer + }; + + union _Arg + { + void* _M_obj; + const std::type_info* _M_typeinfo; + any* _M_any; + }; + + void (*_M_manager)(_Op, const any*, _Arg*); + _Storage _M_storage; + + template + friend void* __any_caster(const any* __any); + + // Manage in-place contained object. + template + struct _Manager_internal + { + static void + _S_manage(_Op __which, const any* __anyp, _Arg* __arg); + + template + static void + _S_create(_Storage& __storage, _Up&& __value) + { + void* __addr = &__storage._M_buffer; + ::new (__addr) _Tp(std::forward<_Up>(__value)); + } + + template + static void + _S_create(_Storage& __storage, _Args&&... __args) + { + void* __addr = &__storage._M_buffer; + ::new (__addr) _Tp(std::forward<_Args>(__args)...); + } + }; + + // Manage external contained object. + template + struct _Manager_external + { + static void + _S_manage(_Op __which, const any* __anyp, _Arg* __arg); + + template + static void + _S_create(_Storage& __storage, _Up&& __value) + { + __storage._M_ptr = new _Tp(std::forward<_Up>(__value)); + } + template + static void + _S_create(_Storage& __storage, _Args&&... __args) + { + __storage._M_ptr = new _Tp(std::forward<_Args>(__args)...); + } + }; + }; + + /// Exchange the states of two @c any objects. + inline void swap(any& __x, any& __y) noexcept { __x.swap(__y); } + + /// Create an any holding a @c _Tp constructed from @c __args. + template + any make_any(_Args&&... __args) + { + return any(in_place_type<_Tp>, std::forward<_Args>(__args)...); + } + + /// Create an any holding a @c _Tp constructed from @c __il and @c __args. + template + any make_any(initializer_list<_Up> __il, _Args&&... __args) + { + return any(in_place_type<_Tp>, __il, std::forward<_Args>(__args)...); + } + + /** + * @brief Access the contained object. + * + * @tparam _ValueType A const-reference or CopyConstructible type. + * @param __any The object to access. + * @return The contained object. + * @throw bad_any_cast If + * __any.type() != typeid(remove_reference_t<_ValueType>) + * + */ + template + inline _ValueType any_cast(const any& __any) + { + using _Up = __remove_cvref_t<_ValueType>; + static_assert(any::__is_valid_cast<_ValueType>(), + "Template argument must be a reference or CopyConstructible type"); + static_assert(is_constructible_v<_ValueType, const _Up&>, + "Template argument must be constructible from a const value."); + auto __p = any_cast<_Up>(&__any); + if (__p) + return static_cast<_ValueType>(*__p); + __throw_bad_any_cast(); + } + + /** + * @brief Access the contained object. + * + * @tparam _ValueType A reference or CopyConstructible type. + * @param __any The object to access. + * @return The contained object. + * @throw bad_any_cast If + * __any.type() != typeid(remove_reference_t<_ValueType>) + * + * + * @{ + */ + template + inline _ValueType any_cast(any& __any) + { + using _Up = __remove_cvref_t<_ValueType>; + static_assert(any::__is_valid_cast<_ValueType>(), + "Template argument must be a reference or CopyConstructible type"); + static_assert(is_constructible_v<_ValueType, _Up&>, + "Template argument must be constructible from an lvalue."); + auto __p = any_cast<_Up>(&__any); + if (__p) + return static_cast<_ValueType>(*__p); + __throw_bad_any_cast(); + } + + template + inline _ValueType any_cast(any&& __any) + { + using _Up = __remove_cvref_t<_ValueType>; + static_assert(any::__is_valid_cast<_ValueType>(), + "Template argument must be a reference or CopyConstructible type"); + static_assert(is_constructible_v<_ValueType, _Up>, + "Template argument must be constructible from an rvalue."); + auto __p = any_cast<_Up>(&__any); + if (__p) + return static_cast<_ValueType>(std::move(*__p)); + __throw_bad_any_cast(); + } + // @} + + /// @cond undocumented + template + void* __any_caster(const any* __any) + { + // any_cast returns non-null if __any->type() == typeid(T) and + // typeid(T) ignores cv-qualifiers so remove them: + using _Up = remove_cv_t<_Tp>; + // The contained value has a decayed type, so if decay_t is not U, + // then it's not possible to have a contained value of type U: + if constexpr (!is_same_v, _Up>) + return nullptr; + // Only copy constructible types can be used for contained values: + else if constexpr (!is_copy_constructible_v<_Up>) + return nullptr; + // First try comparing function addresses, which works without RTTI + else if (__any->_M_manager == &any::_Manager<_Up>::_S_manage +#if __cpp_rtti + || __any->type() == typeid(_Tp) +#endif + ) + { + any::_Arg __arg; + __any->_M_manager(any::_Op_access, __any, &__arg); + return __arg._M_obj; + } + return nullptr; + } + /// @endcond + + /** + * @brief Access the contained object. + * + * @tparam _ValueType The type of the contained object. + * @param __any A pointer to the object to access. + * @return The address of the contained object if + * __any != nullptr && __any.type() == typeid(_ValueType) + * , otherwise a null pointer. + * + * @{ + */ + template + inline const _ValueType* any_cast(const any* __any) noexcept + { + if constexpr (is_object_v<_ValueType>) + if (__any) + return static_cast<_ValueType*>(__any_caster<_ValueType>(__any)); + return nullptr; + } + + template + inline _ValueType* any_cast(any* __any) noexcept + { + if constexpr (is_object_v<_ValueType>) + if (__any) + return static_cast<_ValueType*>(__any_caster<_ValueType>(__any)); + return nullptr; + } + // @} + + template + void + any::_Manager_internal<_Tp>:: + _S_manage(_Op __which, const any* __any, _Arg* __arg) + { + // The contained object is in _M_storage._M_buffer + auto __ptr = reinterpret_cast(&__any->_M_storage._M_buffer); + switch (__which) + { + case _Op_access: + __arg->_M_obj = const_cast<_Tp*>(__ptr); + break; + case _Op_get_type_info: +#if __cpp_rtti + __arg->_M_typeinfo = &typeid(_Tp); +#endif + break; + case _Op_clone: + ::new(&__arg->_M_any->_M_storage._M_buffer) _Tp(*__ptr); + __arg->_M_any->_M_manager = __any->_M_manager; + break; + case _Op_destroy: + __ptr->~_Tp(); + break; + case _Op_xfer: + ::new(&__arg->_M_any->_M_storage._M_buffer) _Tp + (std::move(*const_cast<_Tp*>(__ptr))); + __ptr->~_Tp(); + __arg->_M_any->_M_manager = __any->_M_manager; + const_cast(__any)->_M_manager = nullptr; + break; + } + } + + template + void + any::_Manager_external<_Tp>:: + _S_manage(_Op __which, const any* __any, _Arg* __arg) + { + // The contained object is *_M_storage._M_ptr + auto __ptr = static_cast(__any->_M_storage._M_ptr); + switch (__which) + { + case _Op_access: + __arg->_M_obj = const_cast<_Tp*>(__ptr); + break; + case _Op_get_type_info: +#if __cpp_rtti + __arg->_M_typeinfo = &typeid(_Tp); +#endif + break; + case _Op_clone: + __arg->_M_any->_M_storage._M_ptr = new _Tp(*__ptr); + __arg->_M_any->_M_manager = __any->_M_manager; + break; + case _Op_destroy: + delete __ptr; + break; + case _Op_xfer: + __arg->_M_any->_M_storage._M_ptr = __any->_M_storage._M_ptr; + __arg->_M_any->_M_manager = __any->_M_manager; + const_cast(__any)->_M_manager = nullptr; + break; + } + } + + /// @} + + namespace __detail::__variant + { + template struct _Never_valueless_alt; // see + + // Provide the strong exception-safety guarantee when emplacing an + // any into a variant. + template<> + struct _Never_valueless_alt + : std::true_type + { }; + } // namespace __detail::__variant + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++17 +#endif // _GLIBCXX_ANY diff --git a/resources/sources/avr-libstdcpp/include/array b/resources/sources/avr-libstdcpp/include/array new file mode 100644 index 000000000..3bb6f48c4 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/array @@ -0,0 +1,451 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/array + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_ARRAY +#define _GLIBCXX_ARRAY 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + struct __array_traits + { + typedef _Tp _Type[_Nm]; + typedef __is_swappable<_Tp> _Is_swappable; + typedef __is_nothrow_swappable<_Tp> _Is_nothrow_swappable; + + static constexpr _Tp& + _S_ref(const _Type& __t, std::size_t __n) noexcept + { return const_cast<_Tp&>(__t[__n]); } + + static constexpr _Tp* + _S_ptr(const _Type& __t) noexcept + { return const_cast<_Tp*>(__t); } + }; + + template + struct __array_traits<_Tp, 0> + { + struct _Type { }; + typedef true_type _Is_swappable; + typedef true_type _Is_nothrow_swappable; + + static constexpr _Tp& + _S_ref(const _Type&, std::size_t) noexcept + { return *static_cast<_Tp*>(nullptr); } + + static constexpr _Tp* + _S_ptr(const _Type&) noexcept + { return nullptr; } + }; + + /** + * @brief A standard container for storing a fixed size sequence of elements. + * + * @ingroup sequences + * + * Meets the requirements of a container, a + * reversible container, and a + * sequence. + * + * Sets support random access iterators. + * + * @tparam Tp Type of element. Required to be a complete type. + * @tparam Nm Number of elements. + */ + template + struct array + { + typedef _Tp value_type; + typedef value_type* pointer; + typedef const value_type* const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef value_type* iterator; + typedef const value_type* const_iterator; + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + typedef std::reverse_iterator reverse_iterator; + typedef std::reverse_iterator const_reverse_iterator; + + // Support for zero-sized arrays mandatory. + typedef _GLIBCXX_STD_C::__array_traits<_Tp, _Nm> _AT_Type; + typename _AT_Type::_Type _M_elems; + + // No explicit construct/copy/destroy for aggregate type. + + // DR 776. + _GLIBCXX20_CONSTEXPR void + fill(const value_type& __u) + { std::fill_n(begin(), size(), __u); } + + _GLIBCXX20_CONSTEXPR void + swap(array& __other) + noexcept(_AT_Type::_Is_nothrow_swappable::value) + { std::swap_ranges(begin(), end(), __other.begin()); } + + // Iterators. + _GLIBCXX17_CONSTEXPR iterator + begin() noexcept + { return iterator(data()); } + + _GLIBCXX17_CONSTEXPR const_iterator + begin() const noexcept + { return const_iterator(data()); } + + _GLIBCXX17_CONSTEXPR iterator + end() noexcept + { return iterator(data() + _Nm); } + + _GLIBCXX17_CONSTEXPR const_iterator + end() const noexcept + { return const_iterator(data() + _Nm); } + + _GLIBCXX17_CONSTEXPR reverse_iterator + rbegin() noexcept + { return reverse_iterator(end()); } + + _GLIBCXX17_CONSTEXPR const_reverse_iterator + rbegin() const noexcept + { return const_reverse_iterator(end()); } + + _GLIBCXX17_CONSTEXPR reverse_iterator + rend() noexcept + { return reverse_iterator(begin()); } + + _GLIBCXX17_CONSTEXPR const_reverse_iterator + rend() const noexcept + { return const_reverse_iterator(begin()); } + + _GLIBCXX17_CONSTEXPR const_iterator + cbegin() const noexcept + { return const_iterator(data()); } + + _GLIBCXX17_CONSTEXPR const_iterator + cend() const noexcept + { return const_iterator(data() + _Nm); } + + _GLIBCXX17_CONSTEXPR const_reverse_iterator + crbegin() const noexcept + { return const_reverse_iterator(end()); } + + _GLIBCXX17_CONSTEXPR const_reverse_iterator + crend() const noexcept + { return const_reverse_iterator(begin()); } + + // Capacity. + constexpr size_type + size() const noexcept { return _Nm; } + + constexpr size_type + max_size() const noexcept { return _Nm; } + + _GLIBCXX_NODISCARD constexpr bool + empty() const noexcept { return size() == 0; } + + // Element access. + _GLIBCXX17_CONSTEXPR reference + operator[](size_type __n) noexcept + { return _AT_Type::_S_ref(_M_elems, __n); } + + constexpr const_reference + operator[](size_type __n) const noexcept + { return _AT_Type::_S_ref(_M_elems, __n); } + + _GLIBCXX17_CONSTEXPR reference + at(size_type __n) + { + if (__n >= _Nm) + std::__throw_out_of_range_fmt(__N("array::at: __n (which is %zu) " + ">= _Nm (which is %zu)"), + __n, _Nm); + return _AT_Type::_S_ref(_M_elems, __n); + } + + constexpr const_reference + at(size_type __n) const + { + // Result of conditional expression must be an lvalue so use + // boolean ? lvalue : (throw-expr, lvalue) + return __n < _Nm ? _AT_Type::_S_ref(_M_elems, __n) + : (std::__throw_out_of_range_fmt(__N("array::at: __n (which is %zu) " + ">= _Nm (which is %zu)"), + __n, _Nm), + _AT_Type::_S_ref(_M_elems, 0)); + } + + _GLIBCXX17_CONSTEXPR reference + front() noexcept + { return *begin(); } + + constexpr const_reference + front() const noexcept + { return _AT_Type::_S_ref(_M_elems, 0); } + + _GLIBCXX17_CONSTEXPR reference + back() noexcept + { return _Nm ? *(end() - 1) : *end(); } + + constexpr const_reference + back() const noexcept + { + return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1) + : _AT_Type::_S_ref(_M_elems, 0); + } + + _GLIBCXX17_CONSTEXPR pointer + data() noexcept + { return _AT_Type::_S_ptr(_M_elems); } + + _GLIBCXX17_CONSTEXPR const_pointer + data() const noexcept + { return _AT_Type::_S_ptr(_M_elems); } + }; + +#if __cpp_deduction_guides >= 201606 + template + array(_Tp, _Up...) + -> array && ...), _Tp>, + 1 + sizeof...(_Up)>; +#endif + + // Array comparisons. + template + _GLIBCXX20_CONSTEXPR + inline bool + operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) + { return std::equal(__one.begin(), __one.end(), __two.begin()); } + +#if __cpp_lib_three_way_comparison && __cpp_lib_concepts + template + constexpr __detail::__synth3way_t<_Tp> + operator<=>(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b) + { +#ifdef __cpp_lib_is_constant_evaluated + if constexpr (_Nm && __is_memcmp_ordered<_Tp>::__value) + if (!std::is_constant_evaluated()) + { + constexpr size_t __n = _Nm * sizeof(_Tp); + return __builtin_memcmp(__a.data(), __b.data(), __n) <=> 0; + } +#endif + + for (size_t __i = 0; __i < _Nm; ++__i) + { + auto __c = __detail::__synth3way(__a[__i], __b[__i]); + if (__c != 0) + return __c; + } + return strong_ordering::equal; + } +#else + template + _GLIBCXX20_CONSTEXPR + inline bool + operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) + { return !(__one == __two); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b) + { + return std::lexicographical_compare(__a.begin(), __a.end(), + __b.begin(), __b.end()); + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) + { return __two < __one; } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) + { return !(__one > __two); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator>=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) + { return !(__one < __two); } +#endif // three_way_comparison && concepts + + // Specialized algorithms. + template + _GLIBCXX20_CONSTEXPR + inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if< + _GLIBCXX_STD_C::__array_traits<_Tp, _Nm>::_Is_swappable::value + >::type +#else + void +#endif + swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two) + noexcept(noexcept(__one.swap(__two))) + { __one.swap(__two); } + +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + template + typename enable_if< + !_GLIBCXX_STD_C::__array_traits<_Tp, _Nm>::_Is_swappable::value>::type + swap(array<_Tp, _Nm>&, array<_Tp, _Nm>&) = delete; +#endif + + template + constexpr _Tp& + get(array<_Tp, _Nm>& __arr) noexcept + { + static_assert(_Int < _Nm, "array index is within bounds"); + return _GLIBCXX_STD_C::__array_traits<_Tp, _Nm>:: + _S_ref(__arr._M_elems, _Int); + } + + template + constexpr _Tp&& + get(array<_Tp, _Nm>&& __arr) noexcept + { + static_assert(_Int < _Nm, "array index is within bounds"); + return std::move(_GLIBCXX_STD_C::get<_Int>(__arr)); + } + + template + constexpr const _Tp& + get(const array<_Tp, _Nm>& __arr) noexcept + { + static_assert(_Int < _Nm, "array index is within bounds"); + return _GLIBCXX_STD_C::__array_traits<_Tp, _Nm>:: + _S_ref(__arr._M_elems, _Int); + } + + template + constexpr const _Tp&& + get(const array<_Tp, _Nm>&& __arr) noexcept + { + static_assert(_Int < _Nm, "array index is within bounds"); + return std::move(_GLIBCXX_STD_C::get<_Int>(__arr)); + } + +#if __cplusplus > 201703L +#define __cpp_lib_to_array 201907L + + template + constexpr array, sizeof...(_Idx)> + __to_array(_Tp (&__a)[sizeof...(_Idx)], index_sequence<_Idx...>) + { + if constexpr (_Move) + return {{std::move(__a[_Idx])...}}; + else + return {{__a[_Idx]...}}; + } + + template + constexpr array, _Nm> + to_array(_Tp (&__a)[_Nm]) + noexcept(is_nothrow_constructible_v<_Tp, _Tp&>) + { + static_assert(!is_array_v<_Tp>); + static_assert(is_constructible_v<_Tp, _Tp&>); + if constexpr (is_constructible_v<_Tp, _Tp&>) + return _GLIBCXX_STD_C::__to_array(__a, make_index_sequence<_Nm>{}); + __builtin_unreachable(); // FIXME: see PR c++/91388 + } + + template + constexpr array, _Nm> + to_array(_Tp (&&__a)[_Nm]) + noexcept(is_nothrow_move_constructible_v<_Tp>) + { + static_assert(!is_array_v<_Tp>); + static_assert(is_move_constructible_v<_Tp>); + if constexpr (is_move_constructible_v<_Tp>) + return _GLIBCXX_STD_C::__to_array<1>(__a, make_index_sequence<_Nm>{}); + __builtin_unreachable(); // FIXME: see PR c++/91388 + } +#endif // C++20 + +_GLIBCXX_END_NAMESPACE_CONTAINER +} // namespace std + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Tuple interface to class template array. + + /// tuple_size + template + struct tuple_size; + + /// Partial specialization for std::array + template + struct tuple_size<_GLIBCXX_STD_C::array<_Tp, _Nm>> + : public integral_constant { }; + + /// tuple_element + template + struct tuple_element; + + /// Partial specialization for std::array + template + struct tuple_element<_Int, _GLIBCXX_STD_C::array<_Tp, _Nm>> + { + static_assert(_Int < _Nm, "index is out of bounds"); + typedef _Tp type; + }; + + template + struct __is_tuple_like_impl<_GLIBCXX_STD_C::array<_Tp, _Nm>> : true_type + { }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#endif // C++11 + +#endif // _GLIBCXX_ARRAY diff --git a/resources/sources/avr-libstdcpp/include/atomic b/resources/sources/avr-libstdcpp/include/atomic new file mode 100644 index 000000000..a455286a7 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/atomic @@ -0,0 +1,1552 @@ +// -*- C++ -*- header. + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/atomic + * This is a Standard C++ Library header. + */ + +// Based on "C++ Atomic Types and Operations" by Hans Boehm and Lawrence Crowl. +// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html + +#ifndef _GLIBCXX_ATOMIC +#define _GLIBCXX_ATOMIC 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup atomics + * @{ + */ + +#if __cplusplus >= 201703L +# define __cpp_lib_atomic_is_always_lock_free 201603 +#endif + + template + struct atomic; + + /// atomic + // NB: No operators or fetch-operations for this type. + template<> + struct atomic + { + using value_type = bool; + + private: + __atomic_base _M_base; + + public: + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(bool __i) noexcept : _M_base(__i) { } + + bool + operator=(bool __i) noexcept + { return _M_base.operator=(__i); } + + bool + operator=(bool __i) volatile noexcept + { return _M_base.operator=(__i); } + + operator bool() const noexcept + { return _M_base.load(); } + + operator bool() const volatile noexcept + { return _M_base.load(); } + + bool + is_lock_free() const noexcept { return _M_base.is_lock_free(); } + + bool + is_lock_free() const volatile noexcept { return _M_base.is_lock_free(); } + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_BOOL_LOCK_FREE == 2; +#endif + + void + store(bool __i, memory_order __m = memory_order_seq_cst) noexcept + { _M_base.store(__i, __m); } + + void + store(bool __i, memory_order __m = memory_order_seq_cst) volatile noexcept + { _M_base.store(__i, __m); } + + bool + load(memory_order __m = memory_order_seq_cst) const noexcept + { return _M_base.load(__m); } + + bool + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { return _M_base.load(__m); } + + bool + exchange(bool __i, memory_order __m = memory_order_seq_cst) noexcept + { return _M_base.exchange(__i, __m); } + + bool + exchange(bool __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return _M_base.exchange(__i, __m); } + + bool + compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1, + memory_order __m2) noexcept + { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); } + + bool + compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1, + memory_order __m2) volatile noexcept + { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); } + + bool + compare_exchange_weak(bool& __i1, bool __i2, + memory_order __m = memory_order_seq_cst) noexcept + { return _M_base.compare_exchange_weak(__i1, __i2, __m); } + + bool + compare_exchange_weak(bool& __i1, bool __i2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return _M_base.compare_exchange_weak(__i1, __i2, __m); } + + bool + compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1, + memory_order __m2) noexcept + { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); } + + bool + compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1, + memory_order __m2) volatile noexcept + { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); } + + bool + compare_exchange_strong(bool& __i1, bool __i2, + memory_order __m = memory_order_seq_cst) noexcept + { return _M_base.compare_exchange_strong(__i1, __i2, __m); } + + bool + compare_exchange_strong(bool& __i1, bool __i2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return _M_base.compare_exchange_strong(__i1, __i2, __m); } + }; + +#if __cplusplus <= 201703L +# define _GLIBCXX20_INIT(I) +#else +# define _GLIBCXX20_INIT(I) = I +#endif + + /** + * @brief Generic atomic type, primary class template. + * + * @tparam _Tp Type to be made atomic, must be trivially copyable. + */ + template + struct atomic + { + using value_type = _Tp; + + private: + // Align 1/2/4/8/16-byte types to at least their size. + static constexpr int _S_min_alignment + = (sizeof(_Tp) & (sizeof(_Tp) - 1)) || sizeof(_Tp) > 16 + ? 0 : sizeof(_Tp); + + static constexpr int _S_alignment + = _S_min_alignment > alignof(_Tp) ? _S_min_alignment : alignof(_Tp); + + alignas(_S_alignment) _Tp _M_i _GLIBCXX20_INIT(_Tp()); + + static_assert(__is_trivially_copyable(_Tp), + "std::atomic requires a trivially copyable type"); + + static_assert(sizeof(_Tp) > 0, + "Incomplete or zero-sized types are not supported"); + + public: + atomic() = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(_Tp __i) noexcept : _M_i(__i) { } + + operator _Tp() const noexcept + { return load(); } + + operator _Tp() const volatile noexcept + { return load(); } + + _Tp + operator=(_Tp __i) noexcept + { store(__i); return __i; } + + _Tp + operator=(_Tp __i) volatile noexcept + { store(__i); return __i; } + + bool + is_lock_free() const noexcept + { + // Produce a fake, minimally aligned pointer. + return __atomic_is_lock_free(sizeof(_M_i), + reinterpret_cast(-_S_alignment)); + } + + bool + is_lock_free() const volatile noexcept + { + // Produce a fake, minimally aligned pointer. + return __atomic_is_lock_free(sizeof(_M_i), + reinterpret_cast(-_S_alignment)); + } + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free + = __atomic_always_lock_free(sizeof(_M_i), 0); +#endif + + void + store(_Tp __i, memory_order __m = memory_order_seq_cst) noexcept + { __atomic_store(std::__addressof(_M_i), std::__addressof(__i), int(__m)); } + + void + store(_Tp __i, memory_order __m = memory_order_seq_cst) volatile noexcept + { __atomic_store(std::__addressof(_M_i), std::__addressof(__i), int(__m)); } + + _Tp + load(memory_order __m = memory_order_seq_cst) const noexcept + { + alignas(_Tp) unsigned char __buf[sizeof(_Tp)]; + _Tp* __ptr = reinterpret_cast<_Tp*>(__buf); + __atomic_load(std::__addressof(_M_i), __ptr, int(__m)); + return *__ptr; + } + + _Tp + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { + alignas(_Tp) unsigned char __buf[sizeof(_Tp)]; + _Tp* __ptr = reinterpret_cast<_Tp*>(__buf); + __atomic_load(std::__addressof(_M_i), __ptr, int(__m)); + return *__ptr; + } + + _Tp + exchange(_Tp __i, memory_order __m = memory_order_seq_cst) noexcept + { + alignas(_Tp) unsigned char __buf[sizeof(_Tp)]; + _Tp* __ptr = reinterpret_cast<_Tp*>(__buf); + __atomic_exchange(std::__addressof(_M_i), std::__addressof(__i), + __ptr, int(__m)); + return *__ptr; + } + + _Tp + exchange(_Tp __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + alignas(_Tp) unsigned char __buf[sizeof(_Tp)]; + _Tp* __ptr = reinterpret_cast<_Tp*>(__buf); + __atomic_exchange(std::__addressof(_M_i), std::__addressof(__i), + __ptr, int(__m)); + return *__ptr; + } + + bool + compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s, + memory_order __f) noexcept + { + return __atomic_compare_exchange(std::__addressof(_M_i), + std::__addressof(__e), + std::__addressof(__i), + true, int(__s), int(__f)); + } + + bool + compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s, + memory_order __f) volatile noexcept + { + return __atomic_compare_exchange(std::__addressof(_M_i), + std::__addressof(__e), + std::__addressof(__i), + true, int(__s), int(__f)); + } + + bool + compare_exchange_weak(_Tp& __e, _Tp __i, + memory_order __m = memory_order_seq_cst) noexcept + { return compare_exchange_weak(__e, __i, __m, + __cmpexch_failure_order(__m)); } + + bool + compare_exchange_weak(_Tp& __e, _Tp __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return compare_exchange_weak(__e, __i, __m, + __cmpexch_failure_order(__m)); } + + bool + compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s, + memory_order __f) noexcept + { + return __atomic_compare_exchange(std::__addressof(_M_i), + std::__addressof(__e), + std::__addressof(__i), + false, int(__s), int(__f)); + } + + bool + compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s, + memory_order __f) volatile noexcept + { + return __atomic_compare_exchange(std::__addressof(_M_i), + std::__addressof(__e), + std::__addressof(__i), + false, int(__s), int(__f)); + } + + bool + compare_exchange_strong(_Tp& __e, _Tp __i, + memory_order __m = memory_order_seq_cst) noexcept + { return compare_exchange_strong(__e, __i, __m, + __cmpexch_failure_order(__m)); } + + bool + compare_exchange_strong(_Tp& __e, _Tp __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return compare_exchange_strong(__e, __i, __m, + __cmpexch_failure_order(__m)); } + }; +#undef _GLIBCXX20_INIT + + /// Partial specialization for pointer types. + template + struct atomic<_Tp*> + { + using value_type = _Tp*; + using difference_type = ptrdiff_t; + + typedef _Tp* __pointer_type; + typedef __atomic_base<_Tp*> __base_type; + __base_type _M_b; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__pointer_type __p) noexcept : _M_b(__p) { } + + operator __pointer_type() const noexcept + { return __pointer_type(_M_b); } + + operator __pointer_type() const volatile noexcept + { return __pointer_type(_M_b); } + + __pointer_type + operator=(__pointer_type __p) noexcept + { return _M_b.operator=(__p); } + + __pointer_type + operator=(__pointer_type __p) volatile noexcept + { return _M_b.operator=(__p); } + + __pointer_type + operator++(int) noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b++; + } + + __pointer_type + operator++(int) volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b++; + } + + __pointer_type + operator--(int) noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b--; + } + + __pointer_type + operator--(int) volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b--; + } + + __pointer_type + operator++() noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return ++_M_b; + } + + __pointer_type + operator++() volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return ++_M_b; + } + + __pointer_type + operator--() noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return --_M_b; + } + + __pointer_type + operator--() volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return --_M_b; + } + + __pointer_type + operator+=(ptrdiff_t __d) noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.operator+=(__d); + } + + __pointer_type + operator+=(ptrdiff_t __d) volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.operator+=(__d); + } + + __pointer_type + operator-=(ptrdiff_t __d) noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.operator-=(__d); + } + + __pointer_type + operator-=(ptrdiff_t __d) volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.operator-=(__d); + } + + bool + is_lock_free() const noexcept + { return _M_b.is_lock_free(); } + + bool + is_lock_free() const volatile noexcept + { return _M_b.is_lock_free(); } + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_POINTER_LOCK_FREE == 2; +#endif + + void + store(__pointer_type __p, + memory_order __m = memory_order_seq_cst) noexcept + { return _M_b.store(__p, __m); } + + void + store(__pointer_type __p, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return _M_b.store(__p, __m); } + + __pointer_type + load(memory_order __m = memory_order_seq_cst) const noexcept + { return _M_b.load(__m); } + + __pointer_type + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { return _M_b.load(__m); } + + __pointer_type + exchange(__pointer_type __p, + memory_order __m = memory_order_seq_cst) noexcept + { return _M_b.exchange(__p, __m); } + + __pointer_type + exchange(__pointer_type __p, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return _M_b.exchange(__p, __m); } + + bool + compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, memory_order __m2) noexcept + { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); } + + bool + compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, + memory_order __m2) volatile noexcept + { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); } + + bool + compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2, + memory_order __m = memory_order_seq_cst) noexcept + { + return compare_exchange_weak(__p1, __p2, __m, + __cmpexch_failure_order(__m)); + } + + bool + compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return compare_exchange_weak(__p1, __p2, __m, + __cmpexch_failure_order(__m)); + } + + bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, memory_order __m2) noexcept + { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); } + + bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, + memory_order __m2) volatile noexcept + { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); } + + bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m = memory_order_seq_cst) noexcept + { + return _M_b.compare_exchange_strong(__p1, __p2, __m, + __cmpexch_failure_order(__m)); + } + + bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return _M_b.compare_exchange_strong(__p1, __p2, __m, + __cmpexch_failure_order(__m)); + } + + __pointer_type + fetch_add(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.fetch_add(__d, __m); + } + + __pointer_type + fetch_add(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.fetch_add(__d, __m); + } + + __pointer_type + fetch_sub(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.fetch_sub(__d, __m); + } + + __pointer_type + fetch_sub(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) volatile noexcept + { +#if __cplusplus >= 201703L + static_assert( is_object<_Tp>::value, "pointer to object type" ); +#endif + return _M_b.fetch_sub(__d, __m); + } + }; + + + /// Explicit specialization for char. + template<> + struct atomic : __atomic_base + { + typedef char __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_CHAR_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for signed char. + template<> + struct atomic : __atomic_base + { + typedef signed char __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept= default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_CHAR_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for unsigned char. + template<> + struct atomic : __atomic_base + { + typedef unsigned char __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept= default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_CHAR_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for short. + template<> + struct atomic : __atomic_base + { + typedef short __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_SHORT_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for unsigned short. + template<> + struct atomic : __atomic_base + { + typedef unsigned short __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_SHORT_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for int. + template<> + struct atomic : __atomic_base + { + typedef int __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_INT_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for unsigned int. + template<> + struct atomic : __atomic_base + { + typedef unsigned int __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_INT_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for long. + template<> + struct atomic : __atomic_base + { + typedef long __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_LONG_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for unsigned long. + template<> + struct atomic : __atomic_base + { + typedef unsigned long __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_LONG_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for long long. + template<> + struct atomic : __atomic_base + { + typedef long long __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_LLONG_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for unsigned long long. + template<> + struct atomic : __atomic_base + { + typedef unsigned long long __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_LLONG_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for wchar_t. + template<> + struct atomic : __atomic_base + { + typedef wchar_t __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_WCHAR_T_LOCK_FREE == 2; +#endif + }; + +#ifdef _GLIBCXX_USE_CHAR8_T + /// Explicit specialization for char8_t. + template<> + struct atomic : __atomic_base + { + typedef char8_t __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus > 201402L + static constexpr bool is_always_lock_free = ATOMIC_CHAR8_T_LOCK_FREE == 2; +#endif + }; +#endif + + /// Explicit specialization for char16_t. + template<> + struct atomic : __atomic_base + { + typedef char16_t __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_CHAR16_T_LOCK_FREE == 2; +#endif + }; + + /// Explicit specialization for char32_t. + template<> + struct atomic : __atomic_base + { + typedef char32_t __integral_type; + typedef __atomic_base __base_type; + + atomic() noexcept = default; + ~atomic() noexcept = default; + atomic(const atomic&) = delete; + atomic& operator=(const atomic&) = delete; + atomic& operator=(const atomic&) volatile = delete; + + constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { } + + using __base_type::operator __integral_type; + using __base_type::operator=; + +#if __cplusplus >= 201703L + static constexpr bool is_always_lock_free = ATOMIC_CHAR32_T_LOCK_FREE == 2; +#endif + }; + + + /// atomic_bool + typedef atomic atomic_bool; + + /// atomic_char + typedef atomic atomic_char; + + /// atomic_schar + typedef atomic atomic_schar; + + /// atomic_uchar + typedef atomic atomic_uchar; + + /// atomic_short + typedef atomic atomic_short; + + /// atomic_ushort + typedef atomic atomic_ushort; + + /// atomic_int + typedef atomic atomic_int; + + /// atomic_uint + typedef atomic atomic_uint; + + /// atomic_long + typedef atomic atomic_long; + + /// atomic_ulong + typedef atomic atomic_ulong; + + /// atomic_llong + typedef atomic atomic_llong; + + /// atomic_ullong + typedef atomic atomic_ullong; + + /// atomic_wchar_t + typedef atomic atomic_wchar_t; + +#ifdef _GLIBCXX_USE_CHAR8_T + /// atomic_char8_t + typedef atomic atomic_char8_t; +#endif + + /// atomic_char16_t + typedef atomic atomic_char16_t; + + /// atomic_char32_t + typedef atomic atomic_char32_t; + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2441. Exact-width atomic typedefs should be provided + + /// atomic_int8_t + typedef atomic atomic_int8_t; + + /// atomic_uint8_t + typedef atomic atomic_uint8_t; + + /// atomic_int16_t + typedef atomic atomic_int16_t; + + /// atomic_uint16_t + typedef atomic atomic_uint16_t; + + /// atomic_int32_t + typedef atomic atomic_int32_t; + + /// atomic_uint32_t + typedef atomic atomic_uint32_t; + + /// atomic_int64_t + typedef atomic atomic_int64_t; + + /// atomic_uint64_t + typedef atomic atomic_uint64_t; + + + /// atomic_int_least8_t + typedef atomic atomic_int_least8_t; + + /// atomic_uint_least8_t + typedef atomic atomic_uint_least8_t; + + /// atomic_int_least16_t + typedef atomic atomic_int_least16_t; + + /// atomic_uint_least16_t + typedef atomic atomic_uint_least16_t; + + /// atomic_int_least32_t + typedef atomic atomic_int_least32_t; + + /// atomic_uint_least32_t + typedef atomic atomic_uint_least32_t; + + /// atomic_int_least64_t + typedef atomic atomic_int_least64_t; + + /// atomic_uint_least64_t + typedef atomic atomic_uint_least64_t; + + + /// atomic_int_fast8_t + typedef atomic atomic_int_fast8_t; + + /// atomic_uint_fast8_t + typedef atomic atomic_uint_fast8_t; + + /// atomic_int_fast16_t + typedef atomic atomic_int_fast16_t; + + /// atomic_uint_fast16_t + typedef atomic atomic_uint_fast16_t; + + /// atomic_int_fast32_t + typedef atomic atomic_int_fast32_t; + + /// atomic_uint_fast32_t + typedef atomic atomic_uint_fast32_t; + + /// atomic_int_fast64_t + typedef atomic atomic_int_fast64_t; + + /// atomic_uint_fast64_t + typedef atomic atomic_uint_fast64_t; +#endif + + + /// atomic_intptr_t + typedef atomic atomic_intptr_t; + + /// atomic_uintptr_t + typedef atomic atomic_uintptr_t; + + /// atomic_size_t + typedef atomic atomic_size_t; + + /// atomic_ptrdiff_t + typedef atomic atomic_ptrdiff_t; + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + /// atomic_intmax_t + typedef atomic atomic_intmax_t; + + /// atomic_uintmax_t + typedef atomic atomic_uintmax_t; +#endif + + // Function definitions, atomic_flag operations. + inline bool + atomic_flag_test_and_set_explicit(atomic_flag* __a, + memory_order __m) noexcept + { return __a->test_and_set(__m); } + + inline bool + atomic_flag_test_and_set_explicit(volatile atomic_flag* __a, + memory_order __m) noexcept + { return __a->test_and_set(__m); } + + inline void + atomic_flag_clear_explicit(atomic_flag* __a, memory_order __m) noexcept + { __a->clear(__m); } + + inline void + atomic_flag_clear_explicit(volatile atomic_flag* __a, + memory_order __m) noexcept + { __a->clear(__m); } + + inline bool + atomic_flag_test_and_set(atomic_flag* __a) noexcept + { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); } + + inline bool + atomic_flag_test_and_set(volatile atomic_flag* __a) noexcept + { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); } + + inline void + atomic_flag_clear(atomic_flag* __a) noexcept + { atomic_flag_clear_explicit(__a, memory_order_seq_cst); } + + inline void + atomic_flag_clear(volatile atomic_flag* __a) noexcept + { atomic_flag_clear_explicit(__a, memory_order_seq_cst); } + + + template + using __atomic_val_t = typename atomic<_Tp>::value_type; + template + using __atomic_diff_t = typename atomic<_Tp>::difference_type; + + // [atomics.nonmembers] Non-member functions. + // Function templates generally applicable to atomic types. + template + inline bool + atomic_is_lock_free(const atomic<_ITp>* __a) noexcept + { return __a->is_lock_free(); } + + template + inline bool + atomic_is_lock_free(const volatile atomic<_ITp>* __a) noexcept + { return __a->is_lock_free(); } + + template + inline void + atomic_init(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept + { __a->store(__i, memory_order_relaxed); } + + template + inline void + atomic_init(volatile atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept + { __a->store(__i, memory_order_relaxed); } + + template + inline void + atomic_store_explicit(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { __a->store(__i, __m); } + + template + inline void + atomic_store_explicit(volatile atomic<_ITp>* __a, __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { __a->store(__i, __m); } + + template + inline _ITp + atomic_load_explicit(const atomic<_ITp>* __a, memory_order __m) noexcept + { return __a->load(__m); } + + template + inline _ITp + atomic_load_explicit(const volatile atomic<_ITp>* __a, + memory_order __m) noexcept + { return __a->load(__m); } + + template + inline _ITp + atomic_exchange_explicit(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->exchange(__i, __m); } + + template + inline _ITp + atomic_exchange_explicit(volatile atomic<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->exchange(__i, __m); } + + template + inline bool + atomic_compare_exchange_weak_explicit(atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2, + memory_order __m1, + memory_order __m2) noexcept + { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); } + + template + inline bool + atomic_compare_exchange_weak_explicit(volatile atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2, + memory_order __m1, + memory_order __m2) noexcept + { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); } + + template + inline bool + atomic_compare_exchange_strong_explicit(atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2, + memory_order __m1, + memory_order __m2) noexcept + { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); } + + template + inline bool + atomic_compare_exchange_strong_explicit(volatile atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2, + memory_order __m1, + memory_order __m2) noexcept + { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); } + + + template + inline void + atomic_store(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept + { atomic_store_explicit(__a, __i, memory_order_seq_cst); } + + template + inline void + atomic_store(volatile atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept + { atomic_store_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_load(const atomic<_ITp>* __a) noexcept + { return atomic_load_explicit(__a, memory_order_seq_cst); } + + template + inline _ITp + atomic_load(const volatile atomic<_ITp>* __a) noexcept + { return atomic_load_explicit(__a, memory_order_seq_cst); } + + template + inline _ITp + atomic_exchange(atomic<_ITp>* __a, __atomic_val_t<_ITp> __i) noexcept + { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_exchange(volatile atomic<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); } + + template + inline bool + atomic_compare_exchange_weak(atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2) noexcept + { + return atomic_compare_exchange_weak_explicit(__a, __i1, __i2, + memory_order_seq_cst, + memory_order_seq_cst); + } + + template + inline bool + atomic_compare_exchange_weak(volatile atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2) noexcept + { + return atomic_compare_exchange_weak_explicit(__a, __i1, __i2, + memory_order_seq_cst, + memory_order_seq_cst); + } + + template + inline bool + atomic_compare_exchange_strong(atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2) noexcept + { + return atomic_compare_exchange_strong_explicit(__a, __i1, __i2, + memory_order_seq_cst, + memory_order_seq_cst); + } + + template + inline bool + atomic_compare_exchange_strong(volatile atomic<_ITp>* __a, + __atomic_val_t<_ITp>* __i1, + __atomic_val_t<_ITp> __i2) noexcept + { + return atomic_compare_exchange_strong_explicit(__a, __i1, __i2, + memory_order_seq_cst, + memory_order_seq_cst); + } + + // Function templates for atomic_integral and atomic_pointer operations only. + // Some operations (and, or, xor) are only available for atomic integrals, + // which is implemented by taking a parameter of type __atomic_base<_ITp>*. + + template + inline _ITp + atomic_fetch_add_explicit(atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_add(__i, __m); } + + template + inline _ITp + atomic_fetch_add_explicit(volatile atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_add(__i, __m); } + + template + inline _ITp + atomic_fetch_sub_explicit(atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_sub(__i, __m); } + + template + inline _ITp + atomic_fetch_sub_explicit(volatile atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_sub(__i, __m); } + + template + inline _ITp + atomic_fetch_and_explicit(__atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_and(__i, __m); } + + template + inline _ITp + atomic_fetch_and_explicit(volatile __atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_and(__i, __m); } + + template + inline _ITp + atomic_fetch_or_explicit(__atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_or(__i, __m); } + + template + inline _ITp + atomic_fetch_or_explicit(volatile __atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_or(__i, __m); } + + template + inline _ITp + atomic_fetch_xor_explicit(__atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_xor(__i, __m); } + + template + inline _ITp + atomic_fetch_xor_explicit(volatile __atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i, + memory_order __m) noexcept + { return __a->fetch_xor(__i, __m); } + + template + inline _ITp + atomic_fetch_add(atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i) noexcept + { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_add(volatile atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i) noexcept + { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_sub(atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i) noexcept + { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_sub(volatile atomic<_ITp>* __a, + __atomic_diff_t<_ITp> __i) noexcept + { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_and(__atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_and(volatile __atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_or(__atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_or(volatile __atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_xor(__atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); } + + template + inline _ITp + atomic_fetch_xor(volatile __atomic_base<_ITp>* __a, + __atomic_val_t<_ITp> __i) noexcept + { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); } + +#if __cplusplus > 201703L +#define __cpp_lib_atomic_float 201711L + template<> + struct atomic : __atomic_float + { + atomic() noexcept = default; + + constexpr + atomic(float __fp) noexcept : __atomic_float(__fp) + { } + + atomic& operator=(const atomic&) volatile = delete; + atomic& operator=(const atomic&) = delete; + + using __atomic_float::operator=; + }; + + template<> + struct atomic : __atomic_float + { + atomic() noexcept = default; + + constexpr + atomic(double __fp) noexcept : __atomic_float(__fp) + { } + + atomic& operator=(const atomic&) volatile = delete; + atomic& operator=(const atomic&) = delete; + + using __atomic_float::operator=; + }; + + template<> + struct atomic : __atomic_float + { + atomic() noexcept = default; + + constexpr + atomic(long double __fp) noexcept : __atomic_float(__fp) + { } + + atomic& operator=(const atomic&) volatile = delete; + atomic& operator=(const atomic&) = delete; + + using __atomic_float::operator=; + }; + +#define __cpp_lib_atomic_ref 201806L + + /// Class template to provide atomic operations on a non-atomic variable. + template + struct atomic_ref : __atomic_ref<_Tp> + { + explicit + atomic_ref(_Tp& __t) noexcept : __atomic_ref<_Tp>(__t) + { } + + atomic_ref& operator=(const atomic_ref&) = delete; + + atomic_ref(const atomic_ref&) = default; + + using __atomic_ref<_Tp>::operator=; + }; + +#endif // C++2a + + // @} group atomics + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif // _GLIBCXX_ATOMIC diff --git a/resources/sources/avr-libstdcpp/include/backward/backward_warning.h b/resources/sources/avr-libstdcpp/include/backward/backward_warning.h new file mode 100644 index 000000000..94347de40 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/backward/backward_warning.h @@ -0,0 +1,56 @@ +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file backward/backward_warning.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iosfwd} + */ + +#ifndef _BACKWARD_BACKWARD_WARNING_H +#define _BACKWARD_BACKWARD_WARNING_H 1 + +#ifdef __DEPRECATED +#warning \ + This file includes at least one deprecated or antiquated header which \ + may be removed without further notice at a future date. Please use a \ + non-deprecated interface with equivalent functionality instead. For a \ + listing of replacement headers and interfaces, consult the file \ + backward_warning.h. To disable this warning use -Wno-deprecated. + +/* + A list of valid replacements is as follows: + + Use: Instead of: + , unordered_set , hash_set + , unordered_multiset , hash_multiset + , unordered_map , hash_map + , unordered_multimap , hash_multimap + , bind , binder1st + , bind , binder2nd + , bind , bind1st + , bind , bind2nd + , unique_ptr , auto_ptr +*/ + +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/backward/binders.h b/resources/sources/avr-libstdcpp/include/backward/binders.h new file mode 100644 index 000000000..8c2c00d78 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/backward/binders.h @@ -0,0 +1,182 @@ +// Functor implementations -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file backward/binders.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _BACKWARD_BINDERS_H +#define _BACKWARD_BINDERS_H 1 + +// Suppress deprecated warning for this file. +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // 20.3.6 binders + /** @defgroup binders Binder Classes + * @ingroup functors + * + * Binders turn functions/functors with two arguments into functors + * with a single argument, storing an argument to be applied later. + * For example, a variable @c B of type @c binder1st is constructed + * from a functor @c f and an argument @c x. Later, B's @c + * operator() is called with a single argument @c y. The return + * value is the value of @c f(x,y). @c B can be @a called with + * various arguments (y1, y2, ...) and will in turn call @c + * f(x,y1), @c f(x,y2), ... + * + * The function @c bind1st is provided to save some typing. It takes the + * function and an argument as parameters, and returns an instance of + * @c binder1st. + * + * The type @c binder2nd and its creator function @c bind2nd do the same + * thing, but the stored argument is passed as the second parameter instead + * of the first, e.g., @c bind2nd(std::minus(),1.3) will create a + * functor whose @c operator() accepts a floating-point number, subtracts + * 1.3 from it, and returns the result. (If @c bind1st had been used, + * the functor would perform 1.3 - x instead. + * + * Creator-wrapper functions like @c bind1st are intended to be used in + * calling algorithms. Their return values will be temporary objects. + * (The goal is to not require you to type names like + * @c std::binder1st> for declaring a variable to hold the + * return value from @c bind1st(std::plus(),5). + * + * These become more useful when combined with the composition functions. + * + * These functions are deprecated in C++11 and can be replaced by + * @c std::bind (or @c std::tr1::bind) which is more powerful and flexible, + * supporting functions with any number of arguments. Uses of @c bind1st + * can be replaced by @c std::bind(f, x, std::placeholders::_1) and + * @c bind2nd by @c std::bind(f, std::placeholders::_1, x). + * @{ + */ + /// One of the @link binders binder functors@endlink. + template + class binder1st + : public unary_function + { + protected: + _Operation op; + typename _Operation::first_argument_type value; + + public: + binder1st(const _Operation& __x, + const typename _Operation::first_argument_type& __y) + : op(__x), value(__y) { } + + typename _Operation::result_type + operator()(const typename _Operation::second_argument_type& __x) const + { return op(value, __x); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 109. Missing binders for non-const sequence elements + typename _Operation::result_type + operator()(typename _Operation::second_argument_type& __x) const + { return op(value, __x); } + } _GLIBCXX_DEPRECATED; + + /// One of the @link binders binder functors@endlink. + template + inline binder1st<_Operation> + bind1st(const _Operation& __fn, const _Tp& __x) + { + typedef typename _Operation::first_argument_type _Arg1_type; + return binder1st<_Operation>(__fn, _Arg1_type(__x)); + } + + /// One of the @link binders binder functors@endlink. + template + class binder2nd + : public unary_function + { + protected: + _Operation op; + typename _Operation::second_argument_type value; + + public: + binder2nd(const _Operation& __x, + const typename _Operation::second_argument_type& __y) + : op(__x), value(__y) { } + + typename _Operation::result_type + operator()(const typename _Operation::first_argument_type& __x) const + { return op(__x, value); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 109. Missing binders for non-const sequence elements + typename _Operation::result_type + operator()(typename _Operation::first_argument_type& __x) const + { return op(__x, value); } + } _GLIBCXX_DEPRECATED; + + /// One of the @link binders binder functors@endlink. + template + inline binder2nd<_Operation> + bind2nd(const _Operation& __fn, const _Tp& __x) + { + typedef typename _Operation::second_argument_type _Arg2_type; + return binder2nd<_Operation>(__fn, _Arg2_type(__x)); + } + /** @} */ + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#pragma GCC diagnostic pop + +#endif /* _BACKWARD_BINDERS_H */ diff --git a/resources/sources/avr-libstdcpp/include/backward/hash_fun.h b/resources/sources/avr-libstdcpp/include/backward/hash_fun.h new file mode 100644 index 000000000..5d19f979a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/backward/hash_fun.h @@ -0,0 +1,170 @@ +// 'struct hash' from SGI -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hash_fun.h + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASH_FUN_H +#define _BACKWARD_HASH_FUN_H 1 + +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::size_t; + + template + struct hash { }; + + inline size_t + __stl_hash_string(const char* __s) + { + unsigned long __h = 0; + for ( ; *__s; ++__s) + __h = 5 * __h + *__s; + return size_t(__h); + } + + template<> + struct hash + { + size_t + operator()(const char* __s) const + { return __stl_hash_string(__s); } + }; + + template<> + struct hash + { + size_t + operator()(const char* __s) const + { return __stl_hash_string(__s); } + }; + + template<> + struct hash + { + size_t + operator()(char __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(unsigned char __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(unsigned char __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(short __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(unsigned short __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(int __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(unsigned int __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(long __x) const + { return __x; } + }; + + template<> + struct hash + { + size_t + operator()(unsigned long __x) const + { return __x; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/backward/hash_map b/resources/sources/avr-libstdcpp/include/backward/hash_map new file mode 100644 index 000000000..93db70d56 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/backward/hash_map @@ -0,0 +1,599 @@ +// Hashing map implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hash_map + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASH_MAP +#define _BACKWARD_HASH_MAP 1 + +#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH +#include +#endif + +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::equal_to; + using std::allocator; + using std::pair; + using std::_Select1st; + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Key>, class _Alloc = allocator<_Tp> > + class hash_map + { + private: + typedef hashtable,_Key, _HashFn, + _Select1st >, + _EqualKey, _Alloc> _Ht; + + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef _Tp data_type; + typedef _Tp mapped_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Ht::pointer pointer; + typedef typename _Ht::const_pointer const_pointer; + typedef typename _Ht::reference reference; + typedef typename _Ht::const_reference const_reference; + + typedef typename _Ht::iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_map() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_map(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_map(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_map(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_map(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_map(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_map(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_map(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_unique(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_map& __hs) + { _M_ht.swap(__hs._M_ht); } + + template + friend bool + operator== (const hash_map<_K1, _T1, _HF, _EqK, _Al>&, + const hash_map<_K1, _T1, _HF, _EqK, _Al>&); + + iterator + begin() + { return _M_ht.begin(); } + + iterator + end() + { return _M_ht.end(); } + + const_iterator + begin() const + { return _M_ht.begin(); } + + const_iterator + end() const + { return _M_ht.end(); } + + pair + insert(const value_type& __obj) + { return _M_ht.insert_unique(__obj); } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_unique(__f, __l); } + + pair + insert_noresize(const value_type& __obj) + { return _M_ht.insert_unique_noresize(__obj); } + + iterator + find(const key_type& __key) + { return _M_ht.find(__key); } + + const_iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + _Tp& + operator[](const key_type& __key) + { return _M_ht.find_or_insert(value_type(__key, _Tp())).second; } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) + { return _M_ht.equal_range(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + {return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { return __hm1._M_ht == __hm2._M_ht; } + + template + inline bool + operator!=(const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { return !(__hm1 == __hm2); } + + template + inline void + swap(hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { __hm1.swap(__hm2); } + + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Key>, + class _Alloc = allocator<_Tp> > + class hash_multimap + { + // concept requirements + __glibcxx_class_requires(_Key, _SGIAssignableConcept) + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) + __glibcxx_class_requires3(_HashFn, size_t, _Key, _UnaryFunctionConcept) + __glibcxx_class_requires3(_EqualKey, _Key, _Key, _BinaryPredicateConcept) + + private: + typedef hashtable, _Key, _HashFn, + _Select1st >, _EqualKey, _Alloc> + _Ht; + + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef _Tp data_type; + typedef _Tp mapped_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Ht::pointer pointer; + typedef typename _Ht::const_pointer const_pointer; + typedef typename _Ht::reference reference; + typedef typename _Ht::const_reference const_reference; + + typedef typename _Ht::iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_multimap() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_multimap(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_multimap(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_multimap(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_multimap(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_equal(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_multimap& __hs) + { _M_ht.swap(__hs._M_ht); } + + template + friend bool + operator==(const hash_multimap<_K1, _T1, _HF, _EqK, _Al>&, + const hash_multimap<_K1, _T1, _HF, _EqK, _Al>&); + + iterator + begin() + { return _M_ht.begin(); } + + iterator + end() + { return _M_ht.end(); } + + const_iterator + begin() const + { return _M_ht.begin(); } + + const_iterator + end() const + { return _M_ht.end(); } + + iterator + insert(const value_type& __obj) + { return _M_ht.insert_equal(__obj); } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_equal(__f,__l); } + + iterator + insert_noresize(const value_type& __obj) + { return _M_ht.insert_equal_noresize(__obj); } + + iterator + find(const key_type& __key) + { return _M_ht.find(__key); } + + const_iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) + { return _M_ht.equal_range(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + { return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm1, + const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm2) + { return __hm1._M_ht == __hm2._M_ht; } + + template + inline bool + operator!=(const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm1, + const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm2) + { return !(__hm1 == __hm2); } + + template + inline void + swap(hash_multimap<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + hash_multimap<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { __hm1.swap(__hm2); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Specialization of insert_iterator so that it will work for hash_map + // and hash_multimap. + template + class insert_iterator<__gnu_cxx::hash_map<_Key, _Tp, _HashFn, + _EqKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> + _Container; + _Container* container; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + + template + class insert_iterator<__gnu_cxx::hash_multimap<_Key, _Tp, _HashFn, + _EqKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> + _Container; + _Container* container; + typename _Container::iterator iter; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/backward/hash_set b/resources/sources/avr-libstdcpp/include/backward/hash_set new file mode 100644 index 000000000..0b99302af --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/backward/hash_set @@ -0,0 +1,569 @@ +// Hashing set implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hash_set + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASH_SET +#define _BACKWARD_HASH_SET 1 + +#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH +#include +#endif + +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::equal_to; + using std::allocator; + using std::pair; + using std::_Identity; + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Value>, + class _Alloc = allocator<_Value> > + class hash_set + { + // concept requirements + __glibcxx_class_requires(_Value, _SGIAssignableConcept) + __glibcxx_class_requires3(_HashFcn, size_t, _Value, _UnaryFunctionConcept) + __glibcxx_class_requires3(_EqualKey, _Value, _Value, _BinaryPredicateConcept) + + typedef __alloc_traits<_Alloc> _Alloc_traits; + + private: + typedef hashtable<_Value, _Value, _HashFcn, _Identity<_Value>, + _EqualKey, _Alloc> _Ht; + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + + typedef typename _Ht::const_iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_set() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_set(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_set(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_set(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_set(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_set(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_set(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_set(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_unique(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_set& __hs) + { _M_ht.swap(__hs._M_ht); } + + template + friend bool + operator==(const hash_set<_Val, _HF, _EqK, _Al>&, + const hash_set<_Val, _HF, _EqK, _Al>&); + + iterator + begin() const + { return _M_ht.begin(); } + + iterator + end() const + { return _M_ht.end(); } + + pair + insert(const value_type& __obj) + { + pair __p = _M_ht.insert_unique(__obj); + return pair(__p.first, __p.second); + } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_unique(__f, __l); } + + pair + insert_noresize(const value_type& __obj) + { + pair __p + = _M_ht.insert_unique_noresize(__obj); + return pair(__p.first, __p.second); + } + + iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + {return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return __hs1._M_ht == __hs2._M_ht; } + + template + inline bool + operator!=(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return !(__hs1 == __hs2); } + + template + inline void + swap(hash_set<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + hash_set<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { __hs1.swap(__hs2); } + + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Value>, + class _Alloc = allocator<_Value> > + class hash_multiset + { + // concept requirements + __glibcxx_class_requires(_Value, _SGIAssignableConcept) + __glibcxx_class_requires3(_HashFcn, size_t, _Value, _UnaryFunctionConcept) + __glibcxx_class_requires3(_EqualKey, _Value, _Value, _BinaryPredicateConcept) + + private: + typedef hashtable<_Value, _Value, _HashFcn, _Identity<_Value>, + _EqualKey, _Alloc> _Ht; + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Alloc::pointer pointer; + typedef typename _Alloc::const_pointer const_pointer; + typedef typename _Alloc::reference reference; + typedef typename _Alloc::const_reference const_reference; + + typedef typename _Ht::const_iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_multiset() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_multiset(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_multiset(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_multiset(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_multiset(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_equal(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_multiset& hs) + { _M_ht.swap(hs._M_ht); } + + template + friend bool + operator==(const hash_multiset<_Val, _HF, _EqK, _Al>&, + const hash_multiset<_Val, _HF, _EqK, _Al>&); + + iterator + begin() const + { return _M_ht.begin(); } + + iterator + end() const + { return _M_ht.end(); } + + iterator + insert(const value_type& __obj) + { return _M_ht.insert_equal(__obj); } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_equal(__f,__l); } + + iterator + insert_noresize(const value_type& __obj) + { return _M_ht.insert_equal_noresize(__obj); } + + iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + { return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return __hs1._M_ht == __hs2._M_ht; } + + template + inline bool + operator!=(const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return !(__hs1 == __hs2); } + + template + inline void + swap(hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { __hs1.swap(__hs2); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Specialization of insert_iterator so that it will work for hash_set + // and hash_multiset. + template + class insert_iterator<__gnu_cxx::hash_set<_Value, _HashFcn, + _EqualKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc> + _Container; + _Container* container; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + + template + class insert_iterator<__gnu_cxx::hash_multiset<_Value, _HashFcn, + _EqualKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc> + _Container; + _Container* container; + typename _Container::iterator iter; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) { return *this; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/backward/hashtable.h b/resources/sources/avr-libstdcpp/include/backward/hashtable.h new file mode 100644 index 000000000..1779fa44d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/backward/hashtable.h @@ -0,0 +1,1166 @@ +// Hashtable implementation used by containers -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hashtable.h + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASHTABLE_H +#define _BACKWARD_HASHTABLE_H 1 + +// Hashtable class, used to implement the hashed associative containers +// hash_set, hash_map, hash_multiset, and hash_multimap. + +#include +#include +#include +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + struct _Hashtable_node + { + _Hashtable_node* _M_next; + _Val _M_val; + }; + + template > + class hashtable; + + template + struct _Hashtable_iterator; + + template + struct _Hashtable_const_iterator; + + template + struct _Hashtable_iterator + { + typedef hashtable<_Val, _Key, _HashFcn, _ExtractKey, _EqualKey, _Alloc> + _Hashtable; + typedef _Hashtable_iterator<_Val, _Key, _HashFcn, + _ExtractKey, _EqualKey, _Alloc> + iterator; + typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, + _ExtractKey, _EqualKey, _Alloc> + const_iterator; + typedef _Hashtable_node<_Val> _Node; + typedef std::forward_iterator_tag iterator_category; + typedef _Val value_type; + typedef std::ptrdiff_t difference_type; + typedef std::size_t size_type; + typedef _Val& reference; + typedef _Val* pointer; + + _Node* _M_cur; + _Hashtable* _M_ht; + + _Hashtable_iterator(_Node* __n, _Hashtable* __tab) + : _M_cur(__n), _M_ht(__tab) { } + + _Hashtable_iterator() { } + + reference + operator*() const + { return _M_cur->_M_val; } + + pointer + operator->() const + { return &(operator*()); } + + iterator& + operator++(); + + iterator + operator++(int); + + bool + operator==(const iterator& __it) const + { return _M_cur == __it._M_cur; } + + bool + operator!=(const iterator& __it) const + { return _M_cur != __it._M_cur; } + }; + + template + struct _Hashtable_const_iterator + { + typedef hashtable<_Val, _Key, _HashFcn, _ExtractKey, _EqualKey, _Alloc> + _Hashtable; + typedef _Hashtable_iterator<_Val,_Key,_HashFcn, + _ExtractKey,_EqualKey,_Alloc> + iterator; + typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, + _ExtractKey, _EqualKey, _Alloc> + const_iterator; + typedef _Hashtable_node<_Val> _Node; + + typedef std::forward_iterator_tag iterator_category; + typedef _Val value_type; + typedef std::ptrdiff_t difference_type; + typedef std::size_t size_type; + typedef const _Val& reference; + typedef const _Val* pointer; + + const _Node* _M_cur; + const _Hashtable* _M_ht; + + _Hashtable_const_iterator(const _Node* __n, const _Hashtable* __tab) + : _M_cur(__n), _M_ht(__tab) { } + + _Hashtable_const_iterator() { } + + _Hashtable_const_iterator(const iterator& __it) + : _M_cur(__it._M_cur), _M_ht(__it._M_ht) { } + + reference + operator*() const + { return _M_cur->_M_val; } + + pointer + operator->() const + { return &(operator*()); } + + const_iterator& + operator++(); + + const_iterator + operator++(int); + + bool + operator==(const const_iterator& __it) const + { return _M_cur == __it._M_cur; } + + bool + operator!=(const const_iterator& __it) const + { return _M_cur != __it._M_cur; } + }; + + // Note: assumes long is at least 32 bits. + enum { _S_num_primes = 29 }; + + template + struct _Hashtable_prime_list + { + static const _PrimeType __stl_prime_list[_S_num_primes]; + + static const _PrimeType* + _S_get_prime_list(); + }; + + template const _PrimeType + _Hashtable_prime_list<_PrimeType>::__stl_prime_list[_S_num_primes] = + { + 5ul, 53ul, 97ul, 193ul, 389ul, + 769ul, 1543ul, 3079ul, 6151ul, 12289ul, + 24593ul, 49157ul, 98317ul, 196613ul, 393241ul, + 786433ul, 1572869ul, 3145739ul, 6291469ul, 12582917ul, + 25165843ul, 50331653ul, 100663319ul, 201326611ul, 402653189ul, + 805306457ul, 1610612741ul, 3221225473ul, 4294967291ul + }; + + template inline const _PrimeType* + _Hashtable_prime_list<_PrimeType>::_S_get_prime_list() + { + return __stl_prime_list; + } + + inline unsigned long + __stl_next_prime(unsigned long __n) + { + const unsigned long* __first = _Hashtable_prime_list::_S_get_prime_list(); + const unsigned long* __last = __first + (int)_S_num_primes; + const unsigned long* pos = std::lower_bound(__first, __last, __n); + return pos == __last ? *(__last - 1) : *pos; + } + + // Forward declaration of operator==. + template + class hashtable; + + template + bool + operator==(const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht1, + const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht2); + + // Hashtables handle allocators a bit differently than other + // containers do. If we're using standard-conforming allocators, then + // a hashtable unconditionally has a member variable to hold its + // allocator, even if it so happens that all instances of the + // allocator type are identical. This is because, for hashtables, + // this extra storage is negligible. Additionally, a base class + // wouldn't serve any other purposes; it wouldn't, for example, + // simplify the exception-handling code. + template + class hashtable + { + public: + typedef _Key key_type; + typedef _Val value_type; + typedef _HashFcn hasher; + typedef _EqualKey key_equal; + + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + typedef value_type* pointer; + typedef const value_type* const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + + hasher + hash_funct() const + { return _M_hash; } + + key_equal + key_eq() const + { return _M_equals; } + + private: + typedef _Hashtable_node<_Val> _Node; + + public: + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind::other allocator_type; + + allocator_type + get_allocator() const + { return _M_node_allocator; } + + private: + typedef __gnu_cxx::__alloc_traits _Alloc_traits; + typedef typename _Alloc_traits::template rebind<_Node>::other + _Node_Alloc; + typedef typename _Alloc_traits::template rebind<_Node*>::other + _Nodeptr_Alloc; + typedef std::vector<_Node*, _Nodeptr_Alloc> _Vector_type; + + _Node_Alloc _M_node_allocator; + + _Node* + _M_get_node() + { return _M_node_allocator.allocate(1); } + + void + _M_put_node(_Node* __p) + { _M_node_allocator.deallocate(__p, 1); } + + private: + hasher _M_hash; + key_equal _M_equals; + _ExtractKey _M_get_key; + _Vector_type _M_buckets; + size_type _M_num_elements; + + public: + typedef _Hashtable_iterator<_Val, _Key, _HashFcn, _ExtractKey, + _EqualKey, _Alloc> + iterator; + typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, _ExtractKey, + _EqualKey, _Alloc> + const_iterator; + + friend struct + _Hashtable_iterator<_Val, _Key, _HashFcn, _ExtractKey, _EqualKey, _Alloc>; + + friend struct + _Hashtable_const_iterator<_Val, _Key, _HashFcn, _ExtractKey, + _EqualKey, _Alloc>; + + public: + hashtable(size_type __n, const _HashFcn& __hf, + const _EqualKey& __eql, const _ExtractKey& __ext, + const allocator_type& __a = allocator_type()) + : _M_node_allocator(__a), _M_hash(__hf), _M_equals(__eql), + _M_get_key(__ext), _M_buckets(__a), _M_num_elements(0) + { _M_initialize_buckets(__n); } + + hashtable(size_type __n, const _HashFcn& __hf, + const _EqualKey& __eql, + const allocator_type& __a = allocator_type()) + : _M_node_allocator(__a), _M_hash(__hf), _M_equals(__eql), + _M_get_key(_ExtractKey()), _M_buckets(__a), _M_num_elements(0) + { _M_initialize_buckets(__n); } + + hashtable(const hashtable& __ht) + : _M_node_allocator(__ht.get_allocator()), _M_hash(__ht._M_hash), + _M_equals(__ht._M_equals), _M_get_key(__ht._M_get_key), + _M_buckets(__ht.get_allocator()), _M_num_elements(0) + { _M_copy_from(__ht); } + + hashtable& + operator= (const hashtable& __ht) + { + if (&__ht != this) + { + clear(); + _M_hash = __ht._M_hash; + _M_equals = __ht._M_equals; + _M_get_key = __ht._M_get_key; + _M_copy_from(__ht); + } + return *this; + } + + ~hashtable() + { clear(); } + + size_type + size() const + { return _M_num_elements; } + + size_type + max_size() const + { return size_type(-1); } + + _GLIBCXX_NODISCARD bool + empty() const + { return size() == 0; } + + void + swap(hashtable& __ht) + { + std::swap(_M_hash, __ht._M_hash); + std::swap(_M_equals, __ht._M_equals); + std::swap(_M_get_key, __ht._M_get_key); + _M_buckets.swap(__ht._M_buckets); + std::swap(_M_num_elements, __ht._M_num_elements); + } + + iterator + begin() + { + for (size_type __n = 0; __n < _M_buckets.size(); ++__n) + if (_M_buckets[__n]) + return iterator(_M_buckets[__n], this); + return end(); + } + + iterator + end() + { return iterator(0, this); } + + const_iterator + begin() const + { + for (size_type __n = 0; __n < _M_buckets.size(); ++__n) + if (_M_buckets[__n]) + return const_iterator(_M_buckets[__n], this); + return end(); + } + + const_iterator + end() const + { return const_iterator(0, this); } + + template + friend bool + operator==(const hashtable<_Vl, _Ky, _HF, _Ex, _Eq, _Al>&, + const hashtable<_Vl, _Ky, _HF, _Ex, _Eq, _Al>&); + + public: + size_type + bucket_count() const + { return _M_buckets.size(); } + + size_type + max_bucket_count() const + { return _Hashtable_prime_list:: + _S_get_prime_list()[(int)_S_num_primes - 1]; + } + + size_type + elems_in_bucket(size_type __bucket) const + { + size_type __result = 0; + for (_Node* __n = _M_buckets[__bucket]; __n; __n = __n->_M_next) + __result += 1; + return __result; + } + + std::pair + insert_unique(const value_type& __obj) + { + resize(_M_num_elements + 1); + return insert_unique_noresize(__obj); + } + + iterator + insert_equal(const value_type& __obj) + { + resize(_M_num_elements + 1); + return insert_equal_noresize(__obj); + } + + std::pair + insert_unique_noresize(const value_type& __obj); + + iterator + insert_equal_noresize(const value_type& __obj); + + template + void + insert_unique(_InputIterator __f, _InputIterator __l) + { insert_unique(__f, __l, std::__iterator_category(__f)); } + + template + void + insert_equal(_InputIterator __f, _InputIterator __l) + { insert_equal(__f, __l, std::__iterator_category(__f)); } + + template + void + insert_unique(_InputIterator __f, _InputIterator __l, + std::input_iterator_tag) + { + for ( ; __f != __l; ++__f) + insert_unique(*__f); + } + + template + void + insert_equal(_InputIterator __f, _InputIterator __l, + std::input_iterator_tag) + { + for ( ; __f != __l; ++__f) + insert_equal(*__f); + } + + template + void + insert_unique(_ForwardIterator __f, _ForwardIterator __l, + std::forward_iterator_tag) + { + size_type __n = std::distance(__f, __l); + resize(_M_num_elements + __n); + for ( ; __n > 0; --__n, ++__f) + insert_unique_noresize(*__f); + } + + template + void + insert_equal(_ForwardIterator __f, _ForwardIterator __l, + std::forward_iterator_tag) + { + size_type __n = std::distance(__f, __l); + resize(_M_num_elements + __n); + for ( ; __n > 0; --__n, ++__f) + insert_equal_noresize(*__f); + } + + reference + find_or_insert(const value_type& __obj); + + iterator + find(const key_type& __key) + { + size_type __n = _M_bkt_num_key(__key); + _Node* __first; + for (__first = _M_buckets[__n]; + __first && !_M_equals(_M_get_key(__first->_M_val), __key); + __first = __first->_M_next) + { } + return iterator(__first, this); + } + + const_iterator + find(const key_type& __key) const + { + size_type __n = _M_bkt_num_key(__key); + const _Node* __first; + for (__first = _M_buckets[__n]; + __first && !_M_equals(_M_get_key(__first->_M_val), __key); + __first = __first->_M_next) + { } + return const_iterator(__first, this); + } + + size_type + count(const key_type& __key) const + { + const size_type __n = _M_bkt_num_key(__key); + size_type __result = 0; + + for (const _Node* __cur = _M_buckets[__n]; __cur; + __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), __key)) + ++__result; + return __result; + } + + std::pair + equal_range(const key_type& __key); + + std::pair + equal_range(const key_type& __key) const; + + size_type + erase(const key_type& __key); + + void + erase(const iterator& __it); + + void + erase(iterator __first, iterator __last); + + void + erase(const const_iterator& __it); + + void + erase(const_iterator __first, const_iterator __last); + + void + resize(size_type __num_elements_hint); + + void + clear(); + + private: + size_type + _M_next_size(size_type __n) const + { return __stl_next_prime(__n); } + + void + _M_initialize_buckets(size_type __n) + { + const size_type __n_buckets = _M_next_size(__n); + _M_buckets.reserve(__n_buckets); + _M_buckets.insert(_M_buckets.end(), __n_buckets, (_Node*) 0); + _M_num_elements = 0; + } + + size_type + _M_bkt_num_key(const key_type& __key) const + { return _M_bkt_num_key(__key, _M_buckets.size()); } + + size_type + _M_bkt_num(const value_type& __obj) const + { return _M_bkt_num_key(_M_get_key(__obj)); } + + size_type + _M_bkt_num_key(const key_type& __key, std::size_t __n) const + { return _M_hash(__key) % __n; } + + size_type + _M_bkt_num(const value_type& __obj, std::size_t __n) const + { return _M_bkt_num_key(_M_get_key(__obj), __n); } + + _Node* + _M_new_node(const value_type& __obj) + { + _Node* __n = _M_get_node(); + __n->_M_next = 0; + __try + { + allocator_type __a = this->get_allocator(); + _Alloc_traits::construct(__a, &__n->_M_val, __obj); + return __n; + } + __catch(...) + { + _M_put_node(__n); + __throw_exception_again; + } + } + + void + _M_delete_node(_Node* __n) + { + allocator_type __a = this->get_allocator(); + _Alloc_traits::destroy(__a, &__n->_M_val); + _M_put_node(__n); + } + + void + _M_erase_bucket(const size_type __n, _Node* __first, _Node* __last); + + void + _M_erase_bucket(const size_type __n, _Node* __last); + + void + _M_copy_from(const hashtable& __ht); + }; + + template + _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>& + _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++() + { + const _Node* __old = _M_cur; + _M_cur = _M_cur->_M_next; + if (!_M_cur) + { + size_type __bucket = _M_ht->_M_bkt_num(__old->_M_val); + while (!_M_cur && ++__bucket < _M_ht->_M_buckets.size()) + _M_cur = _M_ht->_M_buckets[__bucket]; + } + return *this; + } + + template + inline _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All> + _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++(int) + { + iterator __tmp = *this; + ++*this; + return __tmp; + } + + template + _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>& + _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++() + { + const _Node* __old = _M_cur; + _M_cur = _M_cur->_M_next; + if (!_M_cur) + { + size_type __bucket = _M_ht->_M_bkt_num(__old->_M_val); + while (!_M_cur && ++__bucket < _M_ht->_M_buckets.size()) + _M_cur = _M_ht->_M_buckets[__bucket]; + } + return *this; + } + + template + inline _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All> + _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++(int) + { + const_iterator __tmp = *this; + ++*this; + return __tmp; + } + + template + bool + operator==(const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht1, + const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht2) + { + typedef typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::_Node _Node; + + if (__ht1._M_buckets.size() != __ht2._M_buckets.size()) + return false; + + for (std::size_t __n = 0; __n < __ht1._M_buckets.size(); ++__n) + { + _Node* __cur1 = __ht1._M_buckets[__n]; + _Node* __cur2 = __ht2._M_buckets[__n]; + // Check same length of lists + for (; __cur1 && __cur2; + __cur1 = __cur1->_M_next, __cur2 = __cur2->_M_next) + { } + if (__cur1 || __cur2) + return false; + // Now check one's elements are in the other + for (__cur1 = __ht1._M_buckets[__n] ; __cur1; + __cur1 = __cur1->_M_next) + { + bool _found__cur1 = false; + for (__cur2 = __ht2._M_buckets[__n]; + __cur2; __cur2 = __cur2->_M_next) + { + if (__cur1->_M_val == __cur2->_M_val) + { + _found__cur1 = true; + break; + } + } + if (!_found__cur1) + return false; + } + } + return true; + } + + template + inline bool + operator!=(const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht1, + const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht2) + { return !(__ht1 == __ht2); } + + template + inline void + swap(hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht1, + hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht2) + { __ht1.swap(__ht2); } + + template + std::pair::iterator, + bool> + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + insert_unique_noresize(const value_type& __obj) + { + const size_type __n = _M_bkt_num(__obj); + _Node* __first = _M_buckets[__n]; + + for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) + return std::pair(iterator(__cur, this), false); + + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __first; + _M_buckets[__n] = __tmp; + ++_M_num_elements; + return std::pair(iterator(__tmp, this), true); + } + + template + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::iterator + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + insert_equal_noresize(const value_type& __obj) + { + const size_type __n = _M_bkt_num(__obj); + _Node* __first = _M_buckets[__n]; + + for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) + { + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __cur->_M_next; + __cur->_M_next = __tmp; + ++_M_num_elements; + return iterator(__tmp, this); + } + + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __first; + _M_buckets[__n] = __tmp; + ++_M_num_elements; + return iterator(__tmp, this); + } + + template + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::reference + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + find_or_insert(const value_type& __obj) + { + resize(_M_num_elements + 1); + + size_type __n = _M_bkt_num(__obj); + _Node* __first = _M_buckets[__n]; + + for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) + return __cur->_M_val; + + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __first; + _M_buckets[__n] = __tmp; + ++_M_num_elements; + return __tmp->_M_val; + } + + template + std::pair::iterator, + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::iterator> + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + equal_range(const key_type& __key) + { + typedef std::pair _Pii; + const size_type __n = _M_bkt_num_key(__key); + + for (_Node* __first = _M_buckets[__n]; __first; + __first = __first->_M_next) + if (_M_equals(_M_get_key(__first->_M_val), __key)) + { + for (_Node* __cur = __first->_M_next; __cur; + __cur = __cur->_M_next) + if (!_M_equals(_M_get_key(__cur->_M_val), __key)) + return _Pii(iterator(__first, this), iterator(__cur, this)); + for (size_type __m = __n + 1; __m < _M_buckets.size(); ++__m) + if (_M_buckets[__m]) + return _Pii(iterator(__first, this), + iterator(_M_buckets[__m], this)); + return _Pii(iterator(__first, this), end()); + } + return _Pii(end(), end()); + } + + template + std::pair< + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::const_iterator, + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::const_iterator> + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + equal_range(const key_type& __key) const + { + typedef std::pair _Pii; + const size_type __n = _M_bkt_num_key(__key); + + for (const _Node* __first = _M_buckets[__n]; __first; + __first = __first->_M_next) + { + if (_M_equals(_M_get_key(__first->_M_val), __key)) + { + for (const _Node* __cur = __first->_M_next; __cur; + __cur = __cur->_M_next) + if (!_M_equals(_M_get_key(__cur->_M_val), __key)) + return _Pii(const_iterator(__first, this), + const_iterator(__cur, this)); + for (size_type __m = __n + 1; __m < _M_buckets.size(); ++__m) + if (_M_buckets[__m]) + return _Pii(const_iterator(__first, this), + const_iterator(_M_buckets[__m], this)); + return _Pii(const_iterator(__first, this), end()); + } + } + return _Pii(end(), end()); + } + + template + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::size_type + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const key_type& __key) + { + const size_type __n = _M_bkt_num_key(__key); + _Node* __first = _M_buckets[__n]; + _Node* __saved_slot = 0; + size_type __erased = 0; + + if (__first) + { + _Node* __cur = __first; + _Node* __next = __cur->_M_next; + while (__next) + { + if (_M_equals(_M_get_key(__next->_M_val), __key)) + { + if (&_M_get_key(__next->_M_val) != &__key) + { + __cur->_M_next = __next->_M_next; + _M_delete_node(__next); + __next = __cur->_M_next; + ++__erased; + --_M_num_elements; + } + else + { + __saved_slot = __cur; + __cur = __next; + __next = __cur->_M_next; + } + } + else + { + __cur = __next; + __next = __cur->_M_next; + } + } + bool __delete_first = _M_equals(_M_get_key(__first->_M_val), __key); + if (__saved_slot) + { + __next = __saved_slot->_M_next; + __saved_slot->_M_next = __next->_M_next; + _M_delete_node(__next); + ++__erased; + --_M_num_elements; + } + if (__delete_first) + { + _M_buckets[__n] = __first->_M_next; + _M_delete_node(__first); + ++__erased; + --_M_num_elements; + } + } + return __erased; + } + + template + void hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const iterator& __it) + { + _Node* __p = __it._M_cur; + if (__p) + { + const size_type __n = _M_bkt_num(__p->_M_val); + _Node* __cur = _M_buckets[__n]; + + if (__cur == __p) + { + _M_buckets[__n] = __cur->_M_next; + _M_delete_node(__cur); + --_M_num_elements; + } + else + { + _Node* __next = __cur->_M_next; + while (__next) + { + if (__next == __p) + { + __cur->_M_next = __next->_M_next; + _M_delete_node(__next); + --_M_num_elements; + break; + } + else + { + __cur = __next; + __next = __cur->_M_next; + } + } + } + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(iterator __first, iterator __last) + { + size_type __f_bucket = __first._M_cur ? _M_bkt_num(__first._M_cur->_M_val) + : _M_buckets.size(); + + size_type __l_bucket = __last._M_cur ? _M_bkt_num(__last._M_cur->_M_val) + : _M_buckets.size(); + + if (__first._M_cur == __last._M_cur) + return; + else if (__f_bucket == __l_bucket) + _M_erase_bucket(__f_bucket, __first._M_cur, __last._M_cur); + else + { + _M_erase_bucket(__f_bucket, __first._M_cur, 0); + for (size_type __n = __f_bucket + 1; __n < __l_bucket; ++__n) + _M_erase_bucket(__n, 0); + if (__l_bucket != _M_buckets.size()) + _M_erase_bucket(__l_bucket, __last._M_cur); + } + } + + template + inline void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const_iterator __first, const_iterator __last) + { + erase(iterator(const_cast<_Node*>(__first._M_cur), + const_cast(__first._M_ht)), + iterator(const_cast<_Node*>(__last._M_cur), + const_cast(__last._M_ht))); + } + + template + inline void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const const_iterator& __it) + { erase(iterator(const_cast<_Node*>(__it._M_cur), + const_cast(__it._M_ht))); } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + resize(size_type __num_elements_hint) + { + const size_type __old_n = _M_buckets.size(); + if (__num_elements_hint > __old_n) + { + const size_type __n = _M_next_size(__num_elements_hint); + if (__n > __old_n) + { + _Vector_type __tmp(__n, (_Node*)(0), _M_buckets.get_allocator()); + __try + { + for (size_type __bucket = 0; __bucket < __old_n; ++__bucket) + { + _Node* __first = _M_buckets[__bucket]; + while (__first) + { + size_type __new_bucket = _M_bkt_num(__first->_M_val, + __n); + _M_buckets[__bucket] = __first->_M_next; + __first->_M_next = __tmp[__new_bucket]; + __tmp[__new_bucket] = __first; + __first = _M_buckets[__bucket]; + } + } + _M_buckets.swap(__tmp); + } + __catch(...) + { + for (size_type __bucket = 0; __bucket < __tmp.size(); + ++__bucket) + { + while (__tmp[__bucket]) + { + _Node* __next = __tmp[__bucket]->_M_next; + _M_delete_node(__tmp[__bucket]); + __tmp[__bucket] = __next; + } + } + __throw_exception_again; + } + } + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + _M_erase_bucket(const size_type __n, _Node* __first, _Node* __last) + { + _Node* __cur = _M_buckets[__n]; + if (__cur == __first) + _M_erase_bucket(__n, __last); + else + { + _Node* __next; + for (__next = __cur->_M_next; + __next != __first; + __cur = __next, __next = __cur->_M_next) + ; + while (__next != __last) + { + __cur->_M_next = __next->_M_next; + _M_delete_node(__next); + __next = __cur->_M_next; + --_M_num_elements; + } + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + _M_erase_bucket(const size_type __n, _Node* __last) + { + _Node* __cur = _M_buckets[__n]; + while (__cur != __last) + { + _Node* __next = __cur->_M_next; + _M_delete_node(__cur); + __cur = __next; + _M_buckets[__n] = __cur; + --_M_num_elements; + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + clear() + { + if (_M_num_elements == 0) + return; + + for (size_type __i = 0; __i < _M_buckets.size(); ++__i) + { + _Node* __cur = _M_buckets[__i]; + while (__cur != 0) + { + _Node* __next = __cur->_M_next; + _M_delete_node(__cur); + __cur = __next; + } + _M_buckets[__i] = 0; + } + _M_num_elements = 0; + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + _M_copy_from(const hashtable& __ht) + { + _M_buckets.clear(); + _M_buckets.reserve(__ht._M_buckets.size()); + _M_buckets.insert(_M_buckets.end(), __ht._M_buckets.size(), (_Node*) 0); + __try + { + for (size_type __i = 0; __i < __ht._M_buckets.size(); ++__i) { + const _Node* __cur = __ht._M_buckets[__i]; + if (__cur) + { + _Node* __local_copy = _M_new_node(__cur->_M_val); + _M_buckets[__i] = __local_copy; + + for (_Node* __next = __cur->_M_next; + __next; + __cur = __next, __next = __cur->_M_next) + { + __local_copy->_M_next = _M_new_node(__next->_M_val); + __local_copy = __local_copy->_M_next; + } + } + } + _M_num_elements = __ht._M_num_elements; + } + __catch(...) + { + clear(); + __throw_exception_again; + } + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bit b/resources/sources/avr-libstdcpp/include/bit new file mode 100644 index 000000000..f4344820d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bit @@ -0,0 +1,371 @@ +// -*- C++ -*- + +// Copyright (C) 2018-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/bit + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_BIT +#define _GLIBCXX_BIT 1 + +#pragma GCC system_header + +#if __cplusplus >= 201402L + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup bit_manip Bit manipulation + * @ingroup numerics + * + * Utilities for examining and manipulating individual bits. + * + * @{ + */ + + /// @cond undoc + + template + constexpr _Tp + __rotl(_Tp __x, int __s) noexcept + { + constexpr auto _Nd = __gnu_cxx::__int_traits<_Tp>::__digits; + const int __r = __s % _Nd; + if (__r == 0) + return __x; + else if (__r > 0) + return (__x << __r) | (__x >> ((_Nd - __r) % _Nd)); + else + return (__x >> -__r) | (__x << ((_Nd + __r) % _Nd)); // rotr(x, -r) + } + + template + constexpr _Tp + __rotr(_Tp __x, int __s) noexcept + { + constexpr auto _Nd = __gnu_cxx::__int_traits<_Tp>::__digits; + const int __r = __s % _Nd; + if (__r == 0) + return __x; + else if (__r > 0) + return (__x >> __r) | (__x << ((_Nd - __r) % _Nd)); + else + return (__x << -__r) | (__x >> ((_Nd + __r) % _Nd)); // rotl(x, -r) + } + + template + constexpr int + __countl_zero(_Tp __x) noexcept + { + using __gnu_cxx::__int_traits; + constexpr auto _Nd = __int_traits<_Tp>::__digits; + + if (__x == 0) + return _Nd; + + constexpr auto _Nd_ull = __int_traits::__digits; + constexpr auto _Nd_ul = __int_traits::__digits; + constexpr auto _Nd_u = __int_traits::__digits; + + if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_u) + { + constexpr int __diff = _Nd_u - _Nd; + return __builtin_clz(__x) - __diff; + } + else if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_ul) + { + constexpr int __diff = _Nd_ul - _Nd; + return __builtin_clzl(__x) - __diff; + } + else if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_ull) + { + constexpr int __diff = _Nd_ull - _Nd; + return __builtin_clzll(__x) - __diff; + } + else // (_Nd > _Nd_ull) + { + static_assert(_Nd <= (2 * _Nd_ull), + "Maximum supported integer size is 128-bit"); + + unsigned long long __high = __x >> _Nd_ull; + if (__high != 0) + { + constexpr int __diff = (2 * _Nd_ull) - _Nd; + return __builtin_clzll(__high) - __diff; + } + constexpr auto __max_ull = __int_traits::__max; + unsigned long long __low = __x & __max_ull; + return (_Nd - _Nd_ull) + __builtin_clzll(__low); + } + } + + template + constexpr int + __countl_one(_Tp __x) noexcept + { + if (__x == __gnu_cxx::__int_traits<_Tp>::__max) + return __gnu_cxx::__int_traits<_Tp>::__digits; + return std::__countl_zero<_Tp>((_Tp)~__x); + } + + template + constexpr int + __countr_zero(_Tp __x) noexcept + { + using __gnu_cxx::__int_traits; + constexpr auto _Nd = __int_traits<_Tp>::__digits; + + if (__x == 0) + return _Nd; + + constexpr auto _Nd_ull = __int_traits::__digits; + constexpr auto _Nd_ul = __int_traits::__digits; + constexpr auto _Nd_u = __int_traits::__digits; + + if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_u) + return __builtin_ctz(__x); + else if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_ul) + return __builtin_ctzl(__x); + else if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_ull) + return __builtin_ctzll(__x); + else // (_Nd > _Nd_ull) + { + static_assert(_Nd <= (2 * _Nd_ull), + "Maximum supported integer size is 128-bit"); + + constexpr auto __max_ull = __int_traits::__max; + unsigned long long __low = __x & __max_ull; + if (__low != 0) + return __builtin_ctzll(__low); + unsigned long long __high = __x >> _Nd_ull; + return __builtin_ctzll(__high) + _Nd_ull; + } + } + + template + constexpr int + __countr_one(_Tp __x) noexcept + { + if (__x == __gnu_cxx::__int_traits<_Tp>::__max) + return __gnu_cxx::__int_traits<_Tp>::__digits; + return std::__countr_zero((_Tp)~__x); + } + + template + constexpr int + __popcount(_Tp __x) noexcept + { + using __gnu_cxx::__int_traits; + constexpr auto _Nd = __int_traits<_Tp>::__digits; + + if (__x == 0) + return 0; + + constexpr auto _Nd_ull = __int_traits::__digits; + constexpr auto _Nd_ul = __int_traits::__digits; + constexpr auto _Nd_u = __int_traits::__digits; + + if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_u) + return __builtin_popcount(__x); + else if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_ul) + return __builtin_popcountl(__x); + else if _GLIBCXX17_CONSTEXPR (_Nd <= _Nd_ull) + return __builtin_popcountll(__x); + else // (_Nd > _Nd_ull) + { + static_assert(_Nd <= (2 * _Nd_ull), + "Maximum supported integer size is 128-bit"); + + constexpr auto __max_ull = __int_traits::__max; + unsigned long long __low = __x & __max_ull; + unsigned long long __high = __x >> _Nd_ull; + return __builtin_popcountll(__low) + __builtin_popcountll(__high); + } + } + + template + constexpr bool + __has_single_bit(_Tp __x) noexcept + { return std::__popcount(__x) == 1; } + + template + constexpr _Tp + __bit_ceil(_Tp __x) noexcept + { + using __gnu_cxx::__int_traits; + constexpr auto _Nd = __int_traits<_Tp>::__digits; + if (__x == 0 || __x == 1) + return 1; + auto __shift_exponent = _Nd - std::__countl_zero((_Tp)(__x - 1u)); + // If the shift exponent equals _Nd then the correct result is not + // representable as a value of _Tp, and so the result is undefined. + // Want that undefined behaviour to be detected in constant expressions, + // by UBSan, and by debug assertions. +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + if (!__builtin_is_constant_evaluated()) + { + __glibcxx_assert( __shift_exponent != __int_traits<_Tp>::__digits ); + } +#endif + using __promoted_type = decltype(__x << 1); + if _GLIBCXX17_CONSTEXPR (!is_same<__promoted_type, _Tp>::value) + { + // If __x undergoes integral promotion then shifting by _Nd is + // not undefined. In order to make the shift undefined, so that + // it is diagnosed in constant expressions and by UBsan, we also + // need to "promote" the shift exponent to be too large for the + // promoted type. + const int __extra_exp = sizeof(__promoted_type) / sizeof(_Tp) / 2; + __shift_exponent |= (__shift_exponent & _Nd) << __extra_exp; + } + return (_Tp)1u << __shift_exponent; + } + + template + constexpr _Tp + __bit_floor(_Tp __x) noexcept + { + constexpr auto _Nd = __gnu_cxx::__int_traits<_Tp>::__digits; + if (__x == 0) + return 0; + return (_Tp)1u << (_Nd - std::__countl_zero((_Tp)(__x >> 1))); + } + + template + constexpr _Tp + __bit_width(_Tp __x) noexcept + { + constexpr auto _Nd = __gnu_cxx::__int_traits<_Tp>::__digits; + return _Nd - std::__countl_zero(__x); + } + + /// @endcond + +#if __cplusplus > 201703L + +#define __cpp_lib_bitops 201907L + + /// @cond undoc + template + using _If_is_unsigned_integer + = enable_if_t<__is_unsigned_integer<_Tp>::value, _Up>; + /// @endcond + + // [bit.rot], rotating + + /// Rotate `x` to the left by `s` bits. + template + [[nodiscard]] constexpr _If_is_unsigned_integer<_Tp> + rotl(_Tp __x, int __s) noexcept + { return std::__rotl(__x, __s); } + + /// Rotate `x` to the right by `s` bits. + template + [[nodiscard]] constexpr _If_is_unsigned_integer<_Tp> + rotr(_Tp __x, int __s) noexcept + { return std::__rotr(__x, __s); } + + // [bit.count], counting + + /// The number of contiguous zero bits, starting from the highest bit. + template + constexpr _If_is_unsigned_integer<_Tp, int> + countl_zero(_Tp __x) noexcept + { return std::__countl_zero(__x); } + + /// The number of contiguous one bits, starting from the highest bit. + template + constexpr _If_is_unsigned_integer<_Tp, int> + countl_one(_Tp __x) noexcept + { return std::__countl_one(__x); } + + /// The number of contiguous zero bits, starting from the lowest bit. + template + constexpr _If_is_unsigned_integer<_Tp, int> + countr_zero(_Tp __x) noexcept + { return std::__countr_zero(__x); } + + /// The number of contiguous one bits, starting from the lowest bit. + template + constexpr _If_is_unsigned_integer<_Tp, int> + countr_one(_Tp __x) noexcept + { return std::__countr_one(__x); } + + /// The number of bits set in `x`. + template + constexpr _If_is_unsigned_integer<_Tp, int> + popcount(_Tp __x) noexcept + { return std::__popcount(__x); } + + // [bit.pow.two], integral powers of 2 + +#define __cpp_lib_int_pow2 202002L + + /// True if `x` is a power of two, false otherwise. + template + constexpr _If_is_unsigned_integer<_Tp, bool> + has_single_bit(_Tp __x) noexcept + { return std::__has_single_bit(__x); } + + /// The smallest power-of-two not less than `x`. + template + constexpr _If_is_unsigned_integer<_Tp> + bit_ceil(_Tp __x) noexcept + { return std::__bit_ceil(__x); } + + /// The largest power-of-two not greater than `x`. + template + constexpr _If_is_unsigned_integer<_Tp> + bit_floor(_Tp __x) noexcept + { return std::__bit_floor(__x); } + + /// The smallest integer greater than the base-2 logarithm of `x`. + template + constexpr _If_is_unsigned_integer<_Tp> + bit_width(_Tp __x) noexcept + { return std::__bit_width(__x); } + +#define __cpp_lib_endian 201907L + + /// Byte order + enum class endian + { + little = __ORDER_LITTLE_ENDIAN__, + big = __ORDER_BIG_ENDIAN__, + native = __BYTE_ORDER__ + }; +#endif // C++2a + + /// @} + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++14 +#endif // _GLIBCXX_BIT diff --git a/resources/sources/avr-libstdcpp/include/bits/algorithmfwd.h b/resources/sources/avr-libstdcpp/include/bits/algorithmfwd.h new file mode 100644 index 000000000..de0bd44f6 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/algorithmfwd.h @@ -0,0 +1,963 @@ +// Forward declarations -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/algorithmfwd.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{algorithm} + */ + +#ifndef _GLIBCXX_ALGORITHMFWD_H +#define _GLIBCXX_ALGORITHMFWD_H 1 + +#pragma GCC system_header + +#include +#include +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /* + adjacent_find + all_of (C++11) + any_of (C++11) + binary_search + clamp (C++17) + copy + copy_backward + copy_if (C++11) + copy_n (C++11) + count + count_if + equal + equal_range + fill + fill_n + find + find_end + find_first_of + find_if + find_if_not (C++11) + for_each + generate + generate_n + includes + inplace_merge + is_heap (C++11) + is_heap_until (C++11) + is_partitioned (C++11) + is_sorted (C++11) + is_sorted_until (C++11) + iter_swap + lexicographical_compare + lower_bound + make_heap + max + max_element + merge + min + min_element + minmax (C++11) + minmax_element (C++11) + mismatch + next_permutation + none_of (C++11) + nth_element + partial_sort + partial_sort_copy + partition + partition_copy (C++11) + partition_point (C++11) + pop_heap + prev_permutation + push_heap + random_shuffle + remove + remove_copy + remove_copy_if + remove_if + replace + replace_copy + replace_copy_if + replace_if + reverse + reverse_copy + rotate + rotate_copy + search + search_n + set_difference + set_intersection + set_symmetric_difference + set_union + shuffle (C++11) + sort + sort_heap + stable_partition + stable_sort + swap + swap_ranges + transform + unique + unique_copy + upper_bound + */ + + /** + * @defgroup algorithms Algorithms + * + * Components for performing algorithmic operations. Includes + * non-modifying sequence, modifying (mutating) sequence, sorting, + * searching, merge, partition, heap, set, minima, maxima, and + * permutation operations. + */ + + /** + * @defgroup mutating_algorithms Mutating + * @ingroup algorithms + */ + + /** + * @defgroup non_mutating_algorithms Non-Mutating + * @ingroup algorithms + */ + + /** + * @defgroup sorting_algorithms Sorting + * @ingroup algorithms + */ + + /** + * @defgroup set_algorithms Set Operations + * @ingroup sorting_algorithms + * + * These algorithms are common set operations performed on sequences + * that are already sorted. The number of comparisons will be + * linear. + */ + + /** + * @defgroup binary_search_algorithms Binary Search + * @ingroup sorting_algorithms + * + * These algorithms are variations of a classic binary search, and + * all assume that the sequence being searched is already sorted. + * + * The number of comparisons will be logarithmic (and as few as + * possible). The number of steps through the sequence will be + * logarithmic for random-access iterators (e.g., pointers), and + * linear otherwise. + * + * The LWG has passed Defect Report 270, which notes: The + * proposed resolution reinterprets binary search. Instead of + * thinking about searching for a value in a sorted range, we view + * that as an important special case of a more general algorithm: + * searching for the partition point in a partitioned range. We + * also add a guarantee that the old wording did not: we ensure that + * the upper bound is no earlier than the lower bound, that the pair + * returned by equal_range is a valid range, and that the first part + * of that pair is the lower bound. + * + * The actual effect of the first sentence is that a comparison + * functor passed by the user doesn't necessarily need to induce a + * strict weak ordering relation. Rather, it partitions the range. + */ + + // adjacent_find + +#if __cplusplus > 201703L +# define __cpp_lib_constexpr_algorithms 201806L +#endif + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + bool + all_of(_IIter, _IIter, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + bool + any_of(_IIter, _IIter, _Predicate); +#endif + + template + _GLIBCXX20_CONSTEXPR + bool + binary_search(_FIter, _FIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + bool + binary_search(_FIter, _FIter, const _Tp&, _Compare); + +#if __cplusplus > 201402L + template + _GLIBCXX14_CONSTEXPR + const _Tp& + clamp(const _Tp&, const _Tp&, const _Tp&); + + template + _GLIBCXX14_CONSTEXPR + const _Tp& + clamp(const _Tp&, const _Tp&, const _Tp&, _Compare); +#endif + + template + _GLIBCXX20_CONSTEXPR + _OIter + copy(_IIter, _IIter, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _BIter2 + copy_backward(_BIter1, _BIter1, _BIter2); + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + _OIter + copy_if(_IIter, _IIter, _OIter, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + _OIter + copy_n(_IIter, _Size, _OIter); +#endif + + // count + // count_if + + template + _GLIBCXX20_CONSTEXPR + pair<_FIter, _FIter> + equal_range(_FIter, _FIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + pair<_FIter, _FIter> + equal_range(_FIter, _FIter, const _Tp&, _Compare); + + template + _GLIBCXX20_CONSTEXPR + void + fill(_FIter, _FIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _OIter + fill_n(_OIter, _Size, const _Tp&); + + // find + + template + _GLIBCXX20_CONSTEXPR + _FIter1 + find_end(_FIter1, _FIter1, _FIter2, _FIter2); + + template + _GLIBCXX20_CONSTEXPR + _FIter1 + find_end(_FIter1, _FIter1, _FIter2, _FIter2, _BinaryPredicate); + + // find_first_of + // find_if + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + _IIter + find_if_not(_IIter, _IIter, _Predicate); +#endif + + // for_each + // generate + // generate_n + + template + _GLIBCXX20_CONSTEXPR + bool + includes(_IIter1, _IIter1, _IIter2, _IIter2); + + template + _GLIBCXX20_CONSTEXPR + bool + includes(_IIter1, _IIter1, _IIter2, _IIter2, _Compare); + + template + void + inplace_merge(_BIter, _BIter, _BIter); + + template + void + inplace_merge(_BIter, _BIter, _BIter, _Compare); + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + bool + is_heap(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + bool + is_heap(_RAIter, _RAIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _RAIter + is_heap_until(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + _RAIter + is_heap_until(_RAIter, _RAIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + bool + is_partitioned(_IIter, _IIter, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + bool + is_permutation(_FIter1, _FIter1, _FIter2); + + template + _GLIBCXX20_CONSTEXPR + bool + is_permutation(_FIter1, _FIter1, _FIter2, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + bool + is_sorted(_FIter, _FIter); + + template + _GLIBCXX20_CONSTEXPR + bool + is_sorted(_FIter, _FIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _FIter + is_sorted_until(_FIter, _FIter); + + template + _GLIBCXX20_CONSTEXPR + _FIter + is_sorted_until(_FIter, _FIter, _Compare); +#endif + + template + _GLIBCXX20_CONSTEXPR + void + iter_swap(_FIter1, _FIter2); + + template + _GLIBCXX20_CONSTEXPR + _FIter + lower_bound(_FIter, _FIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _FIter + lower_bound(_FIter, _FIter, const _Tp&, _Compare); + + template + _GLIBCXX20_CONSTEXPR + void + make_heap(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + make_heap(_RAIter, _RAIter, _Compare); + + template + _GLIBCXX14_CONSTEXPR + const _Tp& + max(const _Tp&, const _Tp&); + + template + _GLIBCXX14_CONSTEXPR + const _Tp& + max(const _Tp&, const _Tp&, _Compare); + + // max_element + // merge + + template + _GLIBCXX14_CONSTEXPR + const _Tp& + min(const _Tp&, const _Tp&); + + template + _GLIBCXX14_CONSTEXPR + const _Tp& + min(const _Tp&, const _Tp&, _Compare); + + // min_element + +#if __cplusplus >= 201103L + template + _GLIBCXX14_CONSTEXPR + pair + minmax(const _Tp&, const _Tp&); + + template + _GLIBCXX14_CONSTEXPR + pair + minmax(const _Tp&, const _Tp&, _Compare); + + template + _GLIBCXX14_CONSTEXPR + pair<_FIter, _FIter> + minmax_element(_FIter, _FIter); + + template + _GLIBCXX14_CONSTEXPR + pair<_FIter, _FIter> + minmax_element(_FIter, _FIter, _Compare); + + template + _GLIBCXX14_CONSTEXPR + _Tp + min(initializer_list<_Tp>); + + template + _GLIBCXX14_CONSTEXPR + _Tp + min(initializer_list<_Tp>, _Compare); + + template + _GLIBCXX14_CONSTEXPR + _Tp + max(initializer_list<_Tp>); + + template + _GLIBCXX14_CONSTEXPR + _Tp + max(initializer_list<_Tp>, _Compare); + + template + _GLIBCXX14_CONSTEXPR + pair<_Tp, _Tp> + minmax(initializer_list<_Tp>); + + template + _GLIBCXX14_CONSTEXPR + pair<_Tp, _Tp> + minmax(initializer_list<_Tp>, _Compare); +#endif + + // mismatch + + template + _GLIBCXX20_CONSTEXPR + bool + next_permutation(_BIter, _BIter); + + template + _GLIBCXX20_CONSTEXPR + bool + next_permutation(_BIter, _BIter, _Compare); + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + bool + none_of(_IIter, _IIter, _Predicate); +#endif + + // nth_element + // partial_sort + + template + _GLIBCXX20_CONSTEXPR + _RAIter + partial_sort_copy(_IIter, _IIter, _RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + _RAIter + partial_sort_copy(_IIter, _IIter, _RAIter, _RAIter, _Compare); + + // partition + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + pair<_OIter1, _OIter2> + partition_copy(_IIter, _IIter, _OIter1, _OIter2, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + _FIter + partition_point(_FIter, _FIter, _Predicate); +#endif + + template + _GLIBCXX20_CONSTEXPR + void + pop_heap(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + pop_heap(_RAIter, _RAIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + bool + prev_permutation(_BIter, _BIter); + + template + _GLIBCXX20_CONSTEXPR + bool + prev_permutation(_BIter, _BIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + void + push_heap(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + push_heap(_RAIter, _RAIter, _Compare); + + // random_shuffle + + template + _GLIBCXX20_CONSTEXPR + _FIter + remove(_FIter, _FIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _FIter + remove_if(_FIter, _FIter, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + _OIter + remove_copy(_IIter, _IIter, _OIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _OIter + remove_copy_if(_IIter, _IIter, _OIter, _Predicate); + + // replace + + template + _GLIBCXX20_CONSTEXPR + _OIter + replace_copy(_IIter, _IIter, _OIter, const _Tp&, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _OIter + replace_copy_if(_Iter, _Iter, _OIter, _Predicate, const _Tp&); + + // replace_if + + template + _GLIBCXX20_CONSTEXPR + void + reverse(_BIter, _BIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + reverse_copy(_BIter, _BIter, _OIter); + + inline namespace _V2 + { + template + _GLIBCXX20_CONSTEXPR + _FIter + rotate(_FIter, _FIter, _FIter); + } + + template + _GLIBCXX20_CONSTEXPR + _OIter + rotate_copy(_FIter, _FIter, _FIter, _OIter); + + // search + // search_n + // set_difference + // set_intersection + // set_symmetric_difference + // set_union + +#if (__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99_STDINT_TR1) + template + void + shuffle(_RAIter, _RAIter, _UGenerator&&); +#endif + + template + _GLIBCXX20_CONSTEXPR + void + sort_heap(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + sort_heap(_RAIter, _RAIter, _Compare); + + template + _BIter + stable_partition(_BIter, _BIter, _Predicate); + +#if __cplusplus < 201103L + // For C++11 swap() is declared in . + + template + _GLIBCXX20_CONSTEXPR + inline void + swap(_Tp& __a, _Tp& __b); + + template + _GLIBCXX20_CONSTEXPR + inline void + swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm]); +#endif + + template + _GLIBCXX20_CONSTEXPR + _FIter2 + swap_ranges(_FIter1, _FIter1, _FIter2); + + // transform + + template + _GLIBCXX20_CONSTEXPR + _FIter + unique(_FIter, _FIter); + + template + _GLIBCXX20_CONSTEXPR + _FIter + unique(_FIter, _FIter, _BinaryPredicate); + + // unique_copy + + template + _GLIBCXX20_CONSTEXPR + _FIter + upper_bound(_FIter, _FIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _FIter + upper_bound(_FIter, _FIter, const _Tp&, _Compare); + +_GLIBCXX_BEGIN_NAMESPACE_ALGO + + template + _GLIBCXX20_CONSTEXPR + _FIter + adjacent_find(_FIter, _FIter); + + template + _GLIBCXX20_CONSTEXPR + _FIter + adjacent_find(_FIter, _FIter, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + typename iterator_traits<_IIter>::difference_type + count(_IIter, _IIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + typename iterator_traits<_IIter>::difference_type + count_if(_IIter, _IIter, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + bool + equal(_IIter1, _IIter1, _IIter2); + + template + _GLIBCXX20_CONSTEXPR + bool + equal(_IIter1, _IIter1, _IIter2, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + _IIter + find(_IIter, _IIter, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _FIter1 + find_first_of(_FIter1, _FIter1, _FIter2, _FIter2); + + template + _GLIBCXX20_CONSTEXPR + _FIter1 + find_first_of(_FIter1, _FIter1, _FIter2, _FIter2, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + _IIter + find_if(_IIter, _IIter, _Predicate); + + template + _GLIBCXX20_CONSTEXPR + _Funct + for_each(_IIter, _IIter, _Funct); + + template + _GLIBCXX20_CONSTEXPR + void + generate(_FIter, _FIter, _Generator); + + template + _GLIBCXX20_CONSTEXPR + _OIter + generate_n(_OIter, _Size, _Generator); + + template + _GLIBCXX20_CONSTEXPR + bool + lexicographical_compare(_IIter1, _IIter1, _IIter2, _IIter2); + + template + _GLIBCXX20_CONSTEXPR + bool + lexicographical_compare(_IIter1, _IIter1, _IIter2, _IIter2, _Compare); + + template + _GLIBCXX14_CONSTEXPR + _FIter + max_element(_FIter, _FIter); + + template + _GLIBCXX14_CONSTEXPR + _FIter + max_element(_FIter, _FIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _OIter + merge(_IIter1, _IIter1, _IIter2, _IIter2, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + merge(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare); + + template + _GLIBCXX14_CONSTEXPR + _FIter + min_element(_FIter, _FIter); + + template + _GLIBCXX14_CONSTEXPR + _FIter + min_element(_FIter, _FIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + pair<_IIter1, _IIter2> + mismatch(_IIter1, _IIter1, _IIter2); + + template + _GLIBCXX20_CONSTEXPR + pair<_IIter1, _IIter2> + mismatch(_IIter1, _IIter1, _IIter2, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + void + nth_element(_RAIter, _RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + nth_element(_RAIter, _RAIter, _RAIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + void + partial_sort(_RAIter, _RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + partial_sort(_RAIter, _RAIter, _RAIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _BIter + partition(_BIter, _BIter, _Predicate); + + template + void + random_shuffle(_RAIter, _RAIter); + + template + void + random_shuffle(_RAIter, _RAIter, +#if __cplusplus >= 201103L + _Generator&&); +#else + _Generator&); +#endif + + template + _GLIBCXX20_CONSTEXPR + void + replace(_FIter, _FIter, const _Tp&, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + void + replace_if(_FIter, _FIter, _Predicate, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _FIter1 + search(_FIter1, _FIter1, _FIter2, _FIter2); + + template + _GLIBCXX20_CONSTEXPR + _FIter1 + search(_FIter1, _FIter1, _FIter2, _FIter2, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + _FIter + search_n(_FIter, _FIter, _Size, const _Tp&); + + template + _GLIBCXX20_CONSTEXPR + _FIter + search_n(_FIter, _FIter, _Size, const _Tp&, _BinaryPredicate); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_difference(_IIter1, _IIter1, _IIter2, _IIter2, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_difference(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_intersection(_IIter1, _IIter1, _IIter2, _IIter2, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_intersection(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_symmetric_difference(_IIter1, _IIter1, _IIter2, _IIter2, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_symmetric_difference(_IIter1, _IIter1, _IIter2, _IIter2, + _OIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_union(_IIter1, _IIter1, _IIter2, _IIter2, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + set_union(_IIter1, _IIter1, _IIter2, _IIter2, _OIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + void + sort(_RAIter, _RAIter); + + template + _GLIBCXX20_CONSTEXPR + void + sort(_RAIter, _RAIter, _Compare); + + template + void + stable_sort(_RAIter, _RAIter); + + template + void + stable_sort(_RAIter, _RAIter, _Compare); + + template + _GLIBCXX20_CONSTEXPR + _OIter + transform(_IIter, _IIter, _OIter, _UnaryOperation); + + template + _GLIBCXX20_CONSTEXPR + _OIter + transform(_IIter1, _IIter1, _IIter2, _OIter, _BinaryOperation); + + template + _GLIBCXX20_CONSTEXPR + _OIter + unique_copy(_IIter, _IIter, _OIter); + + template + _GLIBCXX20_CONSTEXPR + _OIter + unique_copy(_IIter, _IIter, _OIter, _BinaryPredicate); + +_GLIBCXX_END_NAMESPACE_ALGO +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/bits/alloc_traits.h b/resources/sources/avr-libstdcpp/include/bits/alloc_traits.h new file mode 100644 index 000000000..86d8ed221 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/alloc_traits.h @@ -0,0 +1,743 @@ +// Allocator traits -*- C++ -*- + +// Copyright (C) 2011-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/alloc_traits.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _ALLOC_TRAITS_H +#define _ALLOC_TRAITS_H 1 + +#include +#include +#if __cplusplus >= 201103L +# include +# include +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus >= 201103L +#define __cpp_lib_allocator_traits_is_always_equal 201411 + + struct __allocator_traits_base + { + template + struct __rebind : __replace_first_arg<_Tp, _Up> { }; + + template + struct __rebind<_Tp, _Up, + __void_t::other>> + { using type = typename _Tp::template rebind<_Up>::other; }; + + protected: + template + using __pointer = typename _Tp::pointer; + template + using __c_pointer = typename _Tp::const_pointer; + template + using __v_pointer = typename _Tp::void_pointer; + template + using __cv_pointer = typename _Tp::const_void_pointer; + template + using __pocca = typename _Tp::propagate_on_container_copy_assignment; + template + using __pocma = typename _Tp::propagate_on_container_move_assignment; + template + using __pocs = typename _Tp::propagate_on_container_swap; + template + using __equal = typename _Tp::is_always_equal; + }; + + template + using __alloc_rebind + = typename __allocator_traits_base::template __rebind<_Alloc, _Up>::type; + + /** + * @brief Uniform interface to all allocator types. + * @ingroup allocators + */ + template + struct allocator_traits : __allocator_traits_base + { + /// The allocator type + typedef _Alloc allocator_type; + /// The allocated type + typedef typename _Alloc::value_type value_type; + + /** + * @brief The allocator's pointer type. + * + * @c Alloc::pointer if that type exists, otherwise @c value_type* + */ + using pointer = __detected_or_t; + + private: + // Select _Func<_Alloc> or pointer_traits::rebind<_Tp> + template class _Func, typename _Tp, typename = void> + struct _Ptr + { + using type = typename pointer_traits::template rebind<_Tp>; + }; + + template class _Func, typename _Tp> + struct _Ptr<_Func, _Tp, __void_t<_Func<_Alloc>>> + { + using type = _Func<_Alloc>; + }; + + // Select _A2::difference_type or pointer_traits<_Ptr>::difference_type + template + struct _Diff + { using type = typename pointer_traits<_PtrT>::difference_type; }; + + template + struct _Diff<_A2, _PtrT, __void_t> + { using type = typename _A2::difference_type; }; + + // Select _A2::size_type or make_unsigned<_DiffT>::type + template + struct _Size : make_unsigned<_DiffT> { }; + + template + struct _Size<_A2, _DiffT, __void_t> + { using type = typename _A2::size_type; }; + + public: + /** + * @brief The allocator's const pointer type. + * + * @c Alloc::const_pointer if that type exists, otherwise + * pointer_traits::rebind + */ + using const_pointer = typename _Ptr<__c_pointer, const value_type>::type; + + /** + * @brief The allocator's void pointer type. + * + * @c Alloc::void_pointer if that type exists, otherwise + * pointer_traits::rebind + */ + using void_pointer = typename _Ptr<__v_pointer, void>::type; + + /** + * @brief The allocator's const void pointer type. + * + * @c Alloc::const_void_pointer if that type exists, otherwise + * pointer_traits::rebind + */ + using const_void_pointer = typename _Ptr<__cv_pointer, const void>::type; + + /** + * @brief The allocator's difference type + * + * @c Alloc::difference_type if that type exists, otherwise + * pointer_traits::difference_type + */ + using difference_type = typename _Diff<_Alloc, pointer>::type; + + /** + * @brief The allocator's size type + * + * @c Alloc::size_type if that type exists, otherwise + * make_unsigned::type + */ + using size_type = typename _Size<_Alloc, difference_type>::type; + + /** + * @brief How the allocator is propagated on copy assignment + * + * @c Alloc::propagate_on_container_copy_assignment if that type exists, + * otherwise @c false_type + */ + using propagate_on_container_copy_assignment + = __detected_or_t; + + /** + * @brief How the allocator is propagated on move assignment + * + * @c Alloc::propagate_on_container_move_assignment if that type exists, + * otherwise @c false_type + */ + using propagate_on_container_move_assignment + = __detected_or_t; + + /** + * @brief How the allocator is propagated on swap + * + * @c Alloc::propagate_on_container_swap if that type exists, + * otherwise @c false_type + */ + using propagate_on_container_swap + = __detected_or_t; + + /** + * @brief Whether all instances of the allocator type compare equal. + * + * @c Alloc::is_always_equal if that type exists, + * otherwise @c is_empty::type + */ + using is_always_equal + = __detected_or_t::type, __equal, _Alloc>; + + template + using rebind_alloc = __alloc_rebind<_Alloc, _Tp>; + template + using rebind_traits = allocator_traits>; + + private: + template + static constexpr auto + _S_allocate(_Alloc2& __a, size_type __n, const_void_pointer __hint, int) + -> decltype(__a.allocate(__n, __hint)) + { return __a.allocate(__n, __hint); } + + template + static constexpr pointer + _S_allocate(_Alloc2& __a, size_type __n, const_void_pointer, ...) + { return __a.allocate(__n); } + + template + struct __construct_helper + { + template()->construct( + std::declval<_Tp*>(), std::declval<_Args>()...))> + static true_type __test(int); + + template + static false_type __test(...); + + using type = decltype(__test<_Alloc>(0)); + }; + + template + using __has_construct + = typename __construct_helper<_Tp, _Args...>::type; + + template + static _GLIBCXX14_CONSTEXPR _Require<__has_construct<_Tp, _Args...>> + _S_construct(_Alloc& __a, _Tp* __p, _Args&&... __args) + noexcept(noexcept(__a.construct(__p, std::forward<_Args>(__args)...))) + { __a.construct(__p, std::forward<_Args>(__args)...); } + + template + static _GLIBCXX14_CONSTEXPR + _Require<__and_<__not_<__has_construct<_Tp, _Args...>>, + is_constructible<_Tp, _Args...>>> + _S_construct(_Alloc&, _Tp* __p, _Args&&... __args) + noexcept(std::is_nothrow_constructible<_Tp, _Args...>::value) + { +#if __cplusplus <= 201703L + ::new((void*)__p) _Tp(std::forward<_Args>(__args)...); +#else + std::construct_at(__p, std::forward<_Args>(__args)...); +#endif + } + + template + static _GLIBCXX14_CONSTEXPR auto + _S_destroy(_Alloc2& __a, _Tp* __p, int) + noexcept(noexcept(__a.destroy(__p))) + -> decltype(__a.destroy(__p)) + { __a.destroy(__p); } + + template + static _GLIBCXX14_CONSTEXPR void + _S_destroy(_Alloc2&, _Tp* __p, ...) + noexcept(std::is_nothrow_destructible<_Tp>::value) + { std::_Destroy(__p); } + + template + static constexpr auto + _S_max_size(_Alloc2& __a, int) + -> decltype(__a.max_size()) + { return __a.max_size(); } + + template + static constexpr size_type + _S_max_size(_Alloc2&, ...) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2466. allocator_traits::max_size() default behavior is incorrect + return __gnu_cxx::__numeric_traits::__max + / sizeof(value_type); + } + + template + static constexpr auto + _S_select(_Alloc2& __a, int) + -> decltype(__a.select_on_container_copy_construction()) + { return __a.select_on_container_copy_construction(); } + + template + static constexpr _Alloc2 + _S_select(_Alloc2& __a, ...) + { return __a; } + + public: + + /** + * @brief Allocate memory. + * @param __a An allocator. + * @param __n The number of objects to allocate space for. + * + * Calls @c a.allocate(n) + */ + _GLIBCXX_NODISCARD static _GLIBCXX20_CONSTEXPR pointer + allocate(_Alloc& __a, size_type __n) + { return __a.allocate(__n); } + + /** + * @brief Allocate memory. + * @param __a An allocator. + * @param __n The number of objects to allocate space for. + * @param __hint Aid to locality. + * @return Memory of suitable size and alignment for @a n objects + * of type @c value_type + * + * Returns a.allocate(n, hint) if that expression is + * well-formed, otherwise returns @c a.allocate(n) + */ + _GLIBCXX_NODISCARD static _GLIBCXX20_CONSTEXPR pointer + allocate(_Alloc& __a, size_type __n, const_void_pointer __hint) + { return _S_allocate(__a, __n, __hint, 0); } + + /** + * @brief Deallocate memory. + * @param __a An allocator. + * @param __p Pointer to the memory to deallocate. + * @param __n The number of objects space was allocated for. + * + * Calls a.deallocate(p, n) + */ + static _GLIBCXX20_CONSTEXPR void + deallocate(_Alloc& __a, pointer __p, size_type __n) + { __a.deallocate(__p, __n); } + + /** + * @brief Construct an object of type @a _Tp + * @param __a An allocator. + * @param __p Pointer to memory of suitable size and alignment for Tp + * @param __args Constructor arguments. + * + * Calls __a.construct(__p, std::forward(__args)...) + * if that expression is well-formed, otherwise uses placement-new + * to construct an object of type @a _Tp at location @a __p from the + * arguments @a __args... + */ + template + static _GLIBCXX20_CONSTEXPR auto + construct(_Alloc& __a, _Tp* __p, _Args&&... __args) + noexcept(noexcept(_S_construct(__a, __p, + std::forward<_Args>(__args)...))) + -> decltype(_S_construct(__a, __p, std::forward<_Args>(__args)...)) + { _S_construct(__a, __p, std::forward<_Args>(__args)...); } + + /** + * @brief Destroy an object of type @a _Tp + * @param __a An allocator. + * @param __p Pointer to the object to destroy + * + * Calls @c __a.destroy(__p) if that expression is well-formed, + * otherwise calls @c __p->~_Tp() + */ + template + static _GLIBCXX20_CONSTEXPR void + destroy(_Alloc& __a, _Tp* __p) + noexcept(noexcept(_S_destroy(__a, __p, 0))) + { _S_destroy(__a, __p, 0); } + + /** + * @brief The maximum supported allocation size + * @param __a An allocator. + * @return @c __a.max_size() or @c numeric_limits::max() + * + * Returns @c __a.max_size() if that expression is well-formed, + * otherwise returns @c numeric_limits::max() + */ + static _GLIBCXX20_CONSTEXPR size_type + max_size(const _Alloc& __a) noexcept + { return _S_max_size(__a, 0); } + + /** + * @brief Obtain an allocator to use when copying a container. + * @param __rhs An allocator. + * @return @c __rhs.select_on_container_copy_construction() or @a __rhs + * + * Returns @c __rhs.select_on_container_copy_construction() if that + * expression is well-formed, otherwise returns @a __rhs + */ + static _GLIBCXX20_CONSTEXPR _Alloc + select_on_container_copy_construction(const _Alloc& __rhs) + { return _S_select(__rhs, 0); } + }; + +#if __cplusplus > 201703L +# define __cpp_lib_constexpr_dynamic_alloc 201907L +#endif + + /// Partial specialization for std::allocator. + template + struct allocator_traits> + { + /// The allocator type + using allocator_type = allocator<_Tp>; + + /// The allocated type + using value_type = _Tp; + + /// The allocator's pointer type. + using pointer = _Tp*; + + /// The allocator's const pointer type. + using const_pointer = const _Tp*; + + /// The allocator's void pointer type. + using void_pointer = void*; + + /// The allocator's const void pointer type. + using const_void_pointer = const void*; + + /// The allocator's difference type + using difference_type = std::ptrdiff_t; + + /// The allocator's size type + using size_type = std::size_t; + + /// How the allocator is propagated on copy assignment + using propagate_on_container_copy_assignment = false_type; + + /// How the allocator is propagated on move assignment + using propagate_on_container_move_assignment = true_type; + + /// How the allocator is propagated on swap + using propagate_on_container_swap = false_type; + + /// Whether all instances of the allocator type compare equal. + using is_always_equal = true_type; + + template + using rebind_alloc = allocator<_Up>; + + template + using rebind_traits = allocator_traits>; + + /** + * @brief Allocate memory. + * @param __a An allocator. + * @param __n The number of objects to allocate space for. + * + * Calls @c a.allocate(n) + */ + _GLIBCXX_NODISCARD static _GLIBCXX20_CONSTEXPR pointer + allocate(allocator_type& __a, size_type __n) + { return __a.allocate(__n); } + + /** + * @brief Allocate memory. + * @param __a An allocator. + * @param __n The number of objects to allocate space for. + * @param __hint Aid to locality. + * @return Memory of suitable size and alignment for @a n objects + * of type @c value_type + * + * Returns a.allocate(n, hint) + */ + _GLIBCXX_NODISCARD static _GLIBCXX20_CONSTEXPR pointer + allocate(allocator_type& __a, size_type __n, const_void_pointer __hint) + { +#if __cplusplus <= 201703L + return __a.allocate(__n, __hint); +#else + return __a.allocate(__n); +#endif + } + + /** + * @brief Deallocate memory. + * @param __a An allocator. + * @param __p Pointer to the memory to deallocate. + * @param __n The number of objects space was allocated for. + * + * Calls a.deallocate(p, n) + */ + static _GLIBCXX20_CONSTEXPR void + deallocate(allocator_type& __a, pointer __p, size_type __n) + { __a.deallocate(__p, __n); } + + /** + * @brief Construct an object of type `_Up` + * @param __a An allocator. + * @param __p Pointer to memory of suitable size and alignment for + * an object of type `_Up`. + * @param __args Constructor arguments. + * + * Calls `__a.construct(__p, std::forward<_Args>(__args)...)` + * in C++11, C++14 and C++17. Changed in C++20 to call + * `std::construct_at(__p, std::forward<_Args>(__args)...)` instead. + */ + template + static _GLIBCXX20_CONSTEXPR void + construct(allocator_type& __a __attribute__((__unused__)), _Up* __p, + _Args&&... __args) + noexcept(std::is_nothrow_constructible<_Up, _Args...>::value) + { +#if __cplusplus <= 201703L + __a.construct(__p, std::forward<_Args>(__args)...); +#else + std::construct_at(__p, std::forward<_Args>(__args)...); +#endif + } + + /** + * @brief Destroy an object of type @a _Up + * @param __a An allocator. + * @param __p Pointer to the object to destroy + * + * Calls @c __a.destroy(__p). + */ + template + static _GLIBCXX20_CONSTEXPR void + destroy(allocator_type& __a __attribute__((__unused__)), _Up* __p) + noexcept(is_nothrow_destructible<_Up>::value) + { +#if __cplusplus <= 201703L + __a.destroy(__p); +#else + std::destroy_at(__p); +#endif + } + + /** + * @brief The maximum supported allocation size + * @param __a An allocator. + * @return @c __a.max_size() + */ + static _GLIBCXX20_CONSTEXPR size_type + max_size(const allocator_type& __a __attribute__((__unused__))) noexcept + { +#if __cplusplus <= 201703L + return __a.max_size(); +#else + return size_t(-1) / sizeof(value_type); +#endif + } + + /** + * @brief Obtain an allocator to use when copying a container. + * @param __rhs An allocator. + * @return @c __rhs + */ + static _GLIBCXX20_CONSTEXPR allocator_type + select_on_container_copy_construction(const allocator_type& __rhs) + { return __rhs; } + }; + +#if __cplusplus < 201703L + template + inline void + __do_alloc_on_copy(_Alloc& __one, const _Alloc& __two, true_type) + { __one = __two; } + + template + inline void + __do_alloc_on_copy(_Alloc&, const _Alloc&, false_type) + { } +#endif + + template + _GLIBCXX14_CONSTEXPR inline void + __alloc_on_copy(_Alloc& __one, const _Alloc& __two) + { + typedef allocator_traits<_Alloc> __traits; + typedef typename __traits::propagate_on_container_copy_assignment __pocca; +#if __cplusplus >= 201703L + if constexpr (__pocca::value) + __one = __two; +#else + __do_alloc_on_copy(__one, __two, __pocca()); +#endif + } + + template + constexpr _Alloc + __alloc_on_copy(const _Alloc& __a) + { + typedef allocator_traits<_Alloc> __traits; + return __traits::select_on_container_copy_construction(__a); + } + +#if __cplusplus < 201703L + template + inline void __do_alloc_on_move(_Alloc& __one, _Alloc& __two, true_type) + { __one = std::move(__two); } + + template + inline void __do_alloc_on_move(_Alloc&, _Alloc&, false_type) + { } +#endif + + template + _GLIBCXX14_CONSTEXPR inline void + __alloc_on_move(_Alloc& __one, _Alloc& __two) + { + typedef allocator_traits<_Alloc> __traits; + typedef typename __traits::propagate_on_container_move_assignment __pocma; +#if __cplusplus >= 201703L + if constexpr (__pocma::value) + __one = std::move(__two); +#else + __do_alloc_on_move(__one, __two, __pocma()); +#endif + } + +#if __cplusplus < 201703L + template + inline void __do_alloc_on_swap(_Alloc& __one, _Alloc& __two, true_type) + { + using std::swap; + swap(__one, __two); + } + + template + inline void __do_alloc_on_swap(_Alloc&, _Alloc&, false_type) + { } +#endif + + template + _GLIBCXX14_CONSTEXPR inline void + __alloc_on_swap(_Alloc& __one, _Alloc& __two) + { + typedef allocator_traits<_Alloc> __traits; + typedef typename __traits::propagate_on_container_swap __pocs; +#if __cplusplus >= 201703L + if constexpr (__pocs::value) + { + using std::swap; + swap(__one, __two); + } +#else + __do_alloc_on_swap(__one, __two, __pocs()); +#endif + } + + template, + typename = void> + struct __is_alloc_insertable_impl + : false_type + { }; + + template + struct __is_alloc_insertable_impl<_Alloc, _Tp, _ValueT, + __void_t::construct( + std::declval<_Alloc&>(), std::declval<_ValueT*>(), + std::declval<_Tp>()))>> + : true_type + { }; + + // true if _Alloc::value_type is CopyInsertable into containers using _Alloc + // (might be wrong if _Alloc::construct exists but is not constrained, + // i.e. actually trying to use it would still be invalid. Use with caution.) + template + struct __is_copy_insertable + : __is_alloc_insertable_impl<_Alloc, + typename _Alloc::value_type const&>::type + { }; + + // std::allocator<_Tp> just requires CopyConstructible + template + struct __is_copy_insertable> + : is_copy_constructible<_Tp> + { }; + + // true if _Alloc::value_type is MoveInsertable into containers using _Alloc + // (might be wrong if _Alloc::construct exists but is not constrained, + // i.e. actually trying to use it would still be invalid. Use with caution.) + template + struct __is_move_insertable + : __is_alloc_insertable_impl<_Alloc, typename _Alloc::value_type>::type + { }; + + // std::allocator<_Tp> just requires MoveConstructible + template + struct __is_move_insertable> + : is_move_constructible<_Tp> + { }; + + // Trait to detect Allocator-like types. + template + struct __is_allocator : false_type { }; + + template + struct __is_allocator<_Alloc, + __void_t().allocate(size_t{}))>> + : true_type { }; + + template + using _RequireAllocator + = typename enable_if<__is_allocator<_Alloc>::value, _Alloc>::type; + + template + using _RequireNotAllocator + = typename enable_if::value, _Alloc>::type; +#endif // C++11 + + /** + * Destroy a range of objects using the supplied allocator. For + * non-default allocators we do not optimize away invocation of + * destroy() even if _Tp has a trivial destructor. + */ + + template + void + _Destroy(_ForwardIterator __first, _ForwardIterator __last, + _Allocator& __alloc) + { + for (; __first != __last; ++__first) +#if __cplusplus < 201103L + __alloc.destroy(std::__addressof(*__first)); +#else + allocator_traits<_Allocator>::destroy(__alloc, + std::__addressof(*__first)); +#endif + } + + template + inline void + _Destroy(_ForwardIterator __first, _ForwardIterator __last, + allocator<_Tp>&) + { + _Destroy(__first, __last); + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // _ALLOC_TRAITS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/allocated_ptr.h b/resources/sources/avr-libstdcpp/include/bits/allocated_ptr.h new file mode 100644 index 000000000..5058ab084 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/allocated_ptr.h @@ -0,0 +1,104 @@ +// Guarded Allocation -*- C++ -*- + +// Copyright (C) 2014-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/allocated_ptr.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _ALLOCATED_PTR_H +#define _ALLOCATED_PTR_H 1 + +#if __cplusplus < 201103L +# include +#else +# include +# include +# include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// Non-standard RAII type for managing pointers obtained from allocators. + template + struct __allocated_ptr + { + using pointer = typename allocator_traits<_Alloc>::pointer; + using value_type = typename allocator_traits<_Alloc>::value_type; + + /// Take ownership of __ptr + __allocated_ptr(_Alloc& __a, pointer __ptr) noexcept + : _M_alloc(std::__addressof(__a)), _M_ptr(__ptr) + { } + + /// Convert __ptr to allocator's pointer type and take ownership of it + template>> + __allocated_ptr(_Alloc& __a, _Ptr __ptr) + : _M_alloc(std::__addressof(__a)), + _M_ptr(pointer_traits::pointer_to(*__ptr)) + { } + + /// Transfer ownership of the owned pointer + __allocated_ptr(__allocated_ptr&& __gd) noexcept + : _M_alloc(__gd._M_alloc), _M_ptr(__gd._M_ptr) + { __gd._M_ptr = nullptr; } + + /// Deallocate the owned pointer + ~__allocated_ptr() + { + if (_M_ptr != nullptr) + std::allocator_traits<_Alloc>::deallocate(*_M_alloc, _M_ptr, 1); + } + + /// Release ownership of the owned pointer + __allocated_ptr& + operator=(std::nullptr_t) noexcept + { + _M_ptr = nullptr; + return *this; + } + + /// Get the address that the owned pointer refers to. + value_type* get() { return std::__to_address(_M_ptr); } + + private: + _Alloc* _M_alloc; + pointer _M_ptr; + }; + + /// Allocate space for a single object using __a + template + __allocated_ptr<_Alloc> + __allocate_guarded(_Alloc& __a) + { + return { __a, std::allocator_traits<_Alloc>::allocate(__a, 1) }; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/allocator.h b/resources/sources/avr-libstdcpp/include/bits/allocator.h new file mode 100644 index 000000000..d224aa3ec --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/allocator.h @@ -0,0 +1,323 @@ +// Allocators -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996-1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/allocator.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _ALLOCATOR_H +#define _ALLOCATOR_H 1 + +#include // Define the base class to std::allocator. +#include +#if __cplusplus >= 201103L +#include +#endif + +#define __cpp_lib_incomplete_container_elements 201505 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup allocators + * @{ + */ + + /// allocator specialization. + template<> + class allocator + { + public: + typedef void value_type; + typedef size_t size_type; + typedef ptrdiff_t difference_type; +#if __cplusplus <= 201703L + typedef void* pointer; + typedef const void* const_pointer; + + template + struct rebind + { typedef allocator<_Tp1> other; }; +#else + allocator() = default; + + template + constexpr + allocator(const allocator<_Up>&) { } +#endif // ! C++20 + +#if __cplusplus >= 201103L && __cplusplus <= 201703L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2103. std::allocator propagate_on_container_move_assignment + typedef true_type propagate_on_container_move_assignment; + + typedef true_type is_always_equal; + + template + void + construct(_Up* __p, _Args&&... __args) + noexcept(std::is_nothrow_constructible<_Up, _Args...>::value) + { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); } + + template + void + destroy(_Up* __p) + noexcept(std::is_nothrow_destructible<_Up>::value) + { __p->~_Up(); } +#endif // C++11 to C++17 + }; + + /** + * @brief The @a standard allocator, as per [20.4]. + * + * See https://gcc.gnu.org/onlinedocs/libstdc++/manual/memory.html#std.util.memory.allocator + * for further details. + * + * @tparam _Tp Type of allocated object. + */ + template + class allocator : public __allocator_base<_Tp> + { + public: + typedef _Tp value_type; + typedef size_t size_type; + typedef ptrdiff_t difference_type; +#if __cplusplus <= 201703L + typedef _Tp* pointer; + typedef const _Tp* const_pointer; + typedef _Tp& reference; + typedef const _Tp& const_reference; + + template + struct rebind + { typedef allocator<_Tp1> other; }; +#endif + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2103. std::allocator propagate_on_container_move_assignment + typedef true_type propagate_on_container_move_assignment; + + typedef true_type is_always_equal; +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3035. std::allocator's constructors should be constexpr + _GLIBCXX20_CONSTEXPR + allocator() _GLIBCXX_NOTHROW { } + + _GLIBCXX20_CONSTEXPR + allocator(const allocator& __a) _GLIBCXX_NOTHROW + : __allocator_base<_Tp>(__a) { } + +#if __cplusplus >= 201103L + // Avoid implicit deprecation. + allocator& operator=(const allocator&) = default; +#endif + + template + _GLIBCXX20_CONSTEXPR + allocator(const allocator<_Tp1>&) _GLIBCXX_NOTHROW { } + +#if __cpp_constexpr_dynamic_alloc + constexpr +#endif + ~allocator() _GLIBCXX_NOTHROW { } + +#if __cplusplus > 201703L + [[nodiscard,__gnu__::__always_inline__]] + constexpr _Tp* + allocate(size_t __n) + { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp))); +#endif + return __allocator_base<_Tp>::allocate(__n, 0); + } + + [[__gnu__::__always_inline__]] + constexpr void + deallocate(_Tp* __p, size_t __n) + { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + { + ::operator delete(__p); + return; + } +#endif + __allocator_base<_Tp>::deallocate(__p, __n); + } +#endif // C++20 + + friend _GLIBCXX20_CONSTEXPR bool + operator==(const allocator&, const allocator&) _GLIBCXX_NOTHROW + { return true; } + +#if __cpp_impl_three_way_comparison < 201907L + friend _GLIBCXX20_CONSTEXPR bool + operator!=(const allocator&, const allocator&) _GLIBCXX_NOTHROW + { return false; } +#endif + + // Inherit everything else. + }; + + template + inline _GLIBCXX20_CONSTEXPR bool + operator==(const allocator<_T1>&, const allocator<_T2>&) + _GLIBCXX_NOTHROW + { return true; } + +#if __cpp_impl_three_way_comparison < 201907L + template + inline _GLIBCXX20_CONSTEXPR bool + operator!=(const allocator<_T1>&, const allocator<_T2>&) + _GLIBCXX_NOTHROW + { return false; } +#endif + + // Invalid allocator partial specializations. + // allocator_traits::rebind_alloc can be used to form a valid allocator type. + template + class allocator + { + public: + typedef _Tp value_type; + template allocator(const allocator<_Up>&) { } + }; + + template + class allocator + { + public: + typedef _Tp value_type; + template allocator(const allocator<_Up>&) { } + }; + + template + class allocator + { + public: + typedef _Tp value_type; + template allocator(const allocator<_Up>&) { } + }; + + /// @} group allocator + + // Inhibit implicit instantiations for required instantiations, + // which are defined via explicit instantiations elsewhere. +#if _GLIBCXX_EXTERN_TEMPLATE + extern template class allocator; + extern template class allocator; +#endif + + // Undefine. +#undef __allocator_base + + // To implement Option 3 of DR 431. + template + struct __alloc_swap + { static void _S_do_it(_Alloc&, _Alloc&) _GLIBCXX_NOEXCEPT { } }; + + template + struct __alloc_swap<_Alloc, false> + { + static void + _S_do_it(_Alloc& __one, _Alloc& __two) _GLIBCXX_NOEXCEPT + { + // Precondition: swappable allocators. + if (__one != __two) + swap(__one, __two); + } + }; + + // Optimize for stateless allocators. + template + struct __alloc_neq + { + static bool + _S_do_it(const _Alloc&, const _Alloc&) + { return false; } + }; + + template + struct __alloc_neq<_Alloc, false> + { + static bool + _S_do_it(const _Alloc& __one, const _Alloc& __two) + { return __one != __two; } + }; + +#if __cplusplus >= 201103L + template, + is_nothrow_move_constructible>::value> + struct __shrink_to_fit_aux + { static bool _S_do_it(_Tp&) noexcept { return false; } }; + + template + struct __shrink_to_fit_aux<_Tp, true> + { + static bool + _S_do_it(_Tp& __c) noexcept + { +#if __cpp_exceptions + try + { + _Tp(__make_move_if_noexcept_iterator(__c.begin()), + __make_move_if_noexcept_iterator(__c.end()), + __c.get_allocator()).swap(__c); + return true; + } + catch(...) + { return false; } +#else + return false; +#endif + } + }; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/atomic_base.h b/resources/sources/avr-libstdcpp/include/bits/atomic_base.h new file mode 100644 index 000000000..b11de1edf --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/atomic_base.h @@ -0,0 +1,1724 @@ +// -*- C++ -*- header. + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/atomic_base.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{atomic} + */ + +#ifndef _GLIBCXX_ATOMIC_BASE_H +#define _GLIBCXX_ATOMIC_BASE_H 1 + +#pragma GCC system_header + +#include +#include +#include +#include + +#ifndef _GLIBCXX_ALWAYS_INLINE +#define _GLIBCXX_ALWAYS_INLINE inline __attribute__((__always_inline__)) +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup atomics Atomics + * + * Components for performing atomic operations. + * @{ + */ + + /// Enumeration for memory_order +#if __cplusplus > 201703L + enum class memory_order : int + { + relaxed, + consume, + acquire, + release, + acq_rel, + seq_cst + }; + + inline constexpr memory_order memory_order_relaxed = memory_order::relaxed; + inline constexpr memory_order memory_order_consume = memory_order::consume; + inline constexpr memory_order memory_order_acquire = memory_order::acquire; + inline constexpr memory_order memory_order_release = memory_order::release; + inline constexpr memory_order memory_order_acq_rel = memory_order::acq_rel; + inline constexpr memory_order memory_order_seq_cst = memory_order::seq_cst; +#else + typedef enum memory_order + { + memory_order_relaxed, + memory_order_consume, + memory_order_acquire, + memory_order_release, + memory_order_acq_rel, + memory_order_seq_cst + } memory_order; +#endif + + enum __memory_order_modifier + { + __memory_order_mask = 0x0ffff, + __memory_order_modifier_mask = 0xffff0000, + __memory_order_hle_acquire = 0x10000, + __memory_order_hle_release = 0x20000 + }; + + constexpr memory_order + operator|(memory_order __m, __memory_order_modifier __mod) + { + return memory_order(int(__m) | int(__mod)); + } + + constexpr memory_order + operator&(memory_order __m, __memory_order_modifier __mod) + { + return memory_order(int(__m) & int(__mod)); + } + + // Drop release ordering as per [atomics.types.operations.req]/21 + constexpr memory_order + __cmpexch_failure_order2(memory_order __m) noexcept + { + return __m == memory_order_acq_rel ? memory_order_acquire + : __m == memory_order_release ? memory_order_relaxed : __m; + } + + constexpr memory_order + __cmpexch_failure_order(memory_order __m) noexcept + { + return memory_order(__cmpexch_failure_order2(__m & __memory_order_mask) + | __memory_order_modifier(__m & __memory_order_modifier_mask)); + } + + _GLIBCXX_ALWAYS_INLINE void + atomic_thread_fence(memory_order __m) noexcept + { __atomic_thread_fence(int(__m)); } + + _GLIBCXX_ALWAYS_INLINE void + atomic_signal_fence(memory_order __m) noexcept + { __atomic_signal_fence(int(__m)); } + + /// kill_dependency + template + inline _Tp + kill_dependency(_Tp __y) noexcept + { + _Tp __ret(__y); + return __ret; + } + + + // Base types for atomics. + template + struct __atomic_base; + +#if __cplusplus <= 201703L +# define _GLIBCXX20_INIT(I) +#else +# define __cpp_lib_atomic_value_initialization 201911L +# define _GLIBCXX20_INIT(I) = I +#endif + +#define ATOMIC_VAR_INIT(_VI) { _VI } + + template + struct atomic; + + template + struct atomic<_Tp*>; + + /* The target's "set" value for test-and-set may not be exactly 1. */ +#if __GCC_ATOMIC_TEST_AND_SET_TRUEVAL == 1 + typedef bool __atomic_flag_data_type; +#else + typedef unsigned char __atomic_flag_data_type; +#endif + + /** + * @brief Base type for atomic_flag. + * + * Base type is POD with data, allowing atomic_flag to derive from + * it and meet the standard layout type requirement. In addition to + * compatibility with a C interface, this allows different + * implementations of atomic_flag to use the same atomic operation + * functions, via a standard conversion to the __atomic_flag_base + * argument. + */ + _GLIBCXX_BEGIN_EXTERN_C + + struct __atomic_flag_base + { + __atomic_flag_data_type _M_i _GLIBCXX20_INIT({}); + }; + + _GLIBCXX_END_EXTERN_C + +#define ATOMIC_FLAG_INIT { 0 } + + /// atomic_flag + struct atomic_flag : public __atomic_flag_base + { + atomic_flag() noexcept = default; + ~atomic_flag() noexcept = default; + atomic_flag(const atomic_flag&) = delete; + atomic_flag& operator=(const atomic_flag&) = delete; + atomic_flag& operator=(const atomic_flag&) volatile = delete; + + // Conversion to ATOMIC_FLAG_INIT. + constexpr atomic_flag(bool __i) noexcept + : __atomic_flag_base{ _S_init(__i) } + { } + + _GLIBCXX_ALWAYS_INLINE bool + test_and_set(memory_order __m = memory_order_seq_cst) noexcept + { + return __atomic_test_and_set (&_M_i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE bool + test_and_set(memory_order __m = memory_order_seq_cst) volatile noexcept + { + return __atomic_test_and_set (&_M_i, int(__m)); + } + +#if __cplusplus > 201703L +#define __cpp_lib_atomic_flag_test 201907L + + _GLIBCXX_ALWAYS_INLINE bool + test(memory_order __m = memory_order_seq_cst) const noexcept + { + __atomic_flag_data_type __v; + __atomic_load(&_M_i, &__v, int(__m)); + return __v == __GCC_ATOMIC_TEST_AND_SET_TRUEVAL; + } + + _GLIBCXX_ALWAYS_INLINE bool + test(memory_order __m = memory_order_seq_cst) const volatile noexcept + { + __atomic_flag_data_type __v; + __atomic_load(&_M_i, &__v, int(__m)); + return __v == __GCC_ATOMIC_TEST_AND_SET_TRUEVAL; + } + +#endif // C++20 + + _GLIBCXX_ALWAYS_INLINE void + clear(memory_order __m = memory_order_seq_cst) noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_consume); + __glibcxx_assert(__b != memory_order_acquire); + __glibcxx_assert(__b != memory_order_acq_rel); + + __atomic_clear (&_M_i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE void + clear(memory_order __m = memory_order_seq_cst) volatile noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_consume); + __glibcxx_assert(__b != memory_order_acquire); + __glibcxx_assert(__b != memory_order_acq_rel); + + __atomic_clear (&_M_i, int(__m)); + } + + private: + static constexpr __atomic_flag_data_type + _S_init(bool __i) + { return __i ? __GCC_ATOMIC_TEST_AND_SET_TRUEVAL : 0; } + }; + + + /// Base class for atomic integrals. + // + // For each of the integral types, define atomic_[integral type] struct + // + // atomic_bool bool + // atomic_char char + // atomic_schar signed char + // atomic_uchar unsigned char + // atomic_short short + // atomic_ushort unsigned short + // atomic_int int + // atomic_uint unsigned int + // atomic_long long + // atomic_ulong unsigned long + // atomic_llong long long + // atomic_ullong unsigned long long + // atomic_char8_t char8_t + // atomic_char16_t char16_t + // atomic_char32_t char32_t + // atomic_wchar_t wchar_t + // + // NB: Assuming _ITp is an integral scalar type that is 1, 2, 4, or + // 8 bytes, since that is what GCC built-in functions for atomic + // memory access expect. + template + struct __atomic_base + { + using value_type = _ITp; + using difference_type = value_type; + + private: + typedef _ITp __int_type; + + static constexpr int _S_alignment = + sizeof(_ITp) > alignof(_ITp) ? sizeof(_ITp) : alignof(_ITp); + + alignas(_S_alignment) __int_type _M_i _GLIBCXX20_INIT(0); + + public: + __atomic_base() noexcept = default; + ~__atomic_base() noexcept = default; + __atomic_base(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) volatile = delete; + + // Requires __int_type convertible to _M_i. + constexpr __atomic_base(__int_type __i) noexcept : _M_i (__i) { } + + operator __int_type() const noexcept + { return load(); } + + operator __int_type() const volatile noexcept + { return load(); } + + __int_type + operator=(__int_type __i) noexcept + { + store(__i); + return __i; + } + + __int_type + operator=(__int_type __i) volatile noexcept + { + store(__i); + return __i; + } + + __int_type + operator++(int) noexcept + { return fetch_add(1); } + + __int_type + operator++(int) volatile noexcept + { return fetch_add(1); } + + __int_type + operator--(int) noexcept + { return fetch_sub(1); } + + __int_type + operator--(int) volatile noexcept + { return fetch_sub(1); } + + __int_type + operator++() noexcept + { return __atomic_add_fetch(&_M_i, 1, int(memory_order_seq_cst)); } + + __int_type + operator++() volatile noexcept + { return __atomic_add_fetch(&_M_i, 1, int(memory_order_seq_cst)); } + + __int_type + operator--() noexcept + { return __atomic_sub_fetch(&_M_i, 1, int(memory_order_seq_cst)); } + + __int_type + operator--() volatile noexcept + { return __atomic_sub_fetch(&_M_i, 1, int(memory_order_seq_cst)); } + + __int_type + operator+=(__int_type __i) noexcept + { return __atomic_add_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator+=(__int_type __i) volatile noexcept + { return __atomic_add_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator-=(__int_type __i) noexcept + { return __atomic_sub_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator-=(__int_type __i) volatile noexcept + { return __atomic_sub_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator&=(__int_type __i) noexcept + { return __atomic_and_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator&=(__int_type __i) volatile noexcept + { return __atomic_and_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator|=(__int_type __i) noexcept + { return __atomic_or_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator|=(__int_type __i) volatile noexcept + { return __atomic_or_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator^=(__int_type __i) noexcept + { return __atomic_xor_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + __int_type + operator^=(__int_type __i) volatile noexcept + { return __atomic_xor_fetch(&_M_i, __i, int(memory_order_seq_cst)); } + + bool + is_lock_free() const noexcept + { + // Use a fake, minimally aligned pointer. + return __atomic_is_lock_free(sizeof(_M_i), + reinterpret_cast(-_S_alignment)); + } + + bool + is_lock_free() const volatile noexcept + { + // Use a fake, minimally aligned pointer. + return __atomic_is_lock_free(sizeof(_M_i), + reinterpret_cast(-_S_alignment)); + } + + _GLIBCXX_ALWAYS_INLINE void + store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_acquire); + __glibcxx_assert(__b != memory_order_acq_rel); + __glibcxx_assert(__b != memory_order_consume); + + __atomic_store_n(&_M_i, __i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE void + store(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_acquire); + __glibcxx_assert(__b != memory_order_acq_rel); + __glibcxx_assert(__b != memory_order_consume); + + __atomic_store_n(&_M_i, __i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __int_type + load(memory_order __m = memory_order_seq_cst) const noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_release); + __glibcxx_assert(__b != memory_order_acq_rel); + + return __atomic_load_n(&_M_i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __int_type + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_release); + __glibcxx_assert(__b != memory_order_acq_rel); + + return __atomic_load_n(&_M_i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __int_type + exchange(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { + return __atomic_exchange_n(&_M_i, __i, int(__m)); + } + + + _GLIBCXX_ALWAYS_INLINE __int_type + exchange(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return __atomic_exchange_n(&_M_i, __i, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m1, memory_order __m2) noexcept + { + memory_order __b2 = __m2 & __memory_order_mask; + memory_order __b1 = __m1 & __memory_order_mask; + __glibcxx_assert(__b2 != memory_order_release); + __glibcxx_assert(__b2 != memory_order_acq_rel); + __glibcxx_assert(__b2 <= __b1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, + int(__m1), int(__m2)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m1, + memory_order __m2) volatile noexcept + { + memory_order __b2 = __m2 & __memory_order_mask; + memory_order __b1 = __m1 & __memory_order_mask; + __glibcxx_assert(__b2 != memory_order_release); + __glibcxx_assert(__b2 != memory_order_acq_rel); + __glibcxx_assert(__b2 <= __b1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, + int(__m1), int(__m2)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) noexcept + { + return compare_exchange_weak(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_weak(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return compare_exchange_weak(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m1, memory_order __m2) noexcept + { + memory_order __b2 = __m2 & __memory_order_mask; + memory_order __b1 = __m1 & __memory_order_mask; + __glibcxx_assert(__b2 != memory_order_release); + __glibcxx_assert(__b2 != memory_order_acq_rel); + __glibcxx_assert(__b2 <= __b1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, + int(__m1), int(__m2)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m1, + memory_order __m2) volatile noexcept + { + memory_order __b2 = __m2 & __memory_order_mask; + memory_order __b1 = __m1 & __memory_order_mask; + + __glibcxx_assert(__b2 != memory_order_release); + __glibcxx_assert(__b2 != memory_order_acq_rel); + __glibcxx_assert(__b2 <= __b1); + + return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, + int(__m1), int(__m2)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) noexcept + { + return compare_exchange_strong(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(__int_type& __i1, __int_type __i2, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return compare_exchange_strong(__i1, __i2, __m, + __cmpexch_failure_order(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_add(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_add(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_add(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_add(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_sub(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_sub(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_sub(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_sub(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_and(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_and(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_and(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_and(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_or(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_or(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_or(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_or(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_xor(__int_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_xor(&_M_i, __i, int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __int_type + fetch_xor(__int_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_xor(&_M_i, __i, int(__m)); } + }; + + + /// Partial specialization for pointer types. + template + struct __atomic_base<_PTp*> + { + private: + typedef _PTp* __pointer_type; + + __pointer_type _M_p _GLIBCXX20_INIT(nullptr); + + // Factored out to facilitate explicit specialization. + constexpr ptrdiff_t + _M_type_size(ptrdiff_t __d) const { return __d * sizeof(_PTp); } + + constexpr ptrdiff_t + _M_type_size(ptrdiff_t __d) const volatile { return __d * sizeof(_PTp); } + + public: + __atomic_base() noexcept = default; + ~__atomic_base() noexcept = default; + __atomic_base(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) = delete; + __atomic_base& operator=(const __atomic_base&) volatile = delete; + + // Requires __pointer_type convertible to _M_p. + constexpr __atomic_base(__pointer_type __p) noexcept : _M_p (__p) { } + + operator __pointer_type() const noexcept + { return load(); } + + operator __pointer_type() const volatile noexcept + { return load(); } + + __pointer_type + operator=(__pointer_type __p) noexcept + { + store(__p); + return __p; + } + + __pointer_type + operator=(__pointer_type __p) volatile noexcept + { + store(__p); + return __p; + } + + __pointer_type + operator++(int) noexcept + { return fetch_add(1); } + + __pointer_type + operator++(int) volatile noexcept + { return fetch_add(1); } + + __pointer_type + operator--(int) noexcept + { return fetch_sub(1); } + + __pointer_type + operator--(int) volatile noexcept + { return fetch_sub(1); } + + __pointer_type + operator++() noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(1), + int(memory_order_seq_cst)); } + + __pointer_type + operator++() volatile noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(1), + int(memory_order_seq_cst)); } + + __pointer_type + operator--() noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(1), + int(memory_order_seq_cst)); } + + __pointer_type + operator--() volatile noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(1), + int(memory_order_seq_cst)); } + + __pointer_type + operator+=(ptrdiff_t __d) noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(__d), + int(memory_order_seq_cst)); } + + __pointer_type + operator+=(ptrdiff_t __d) volatile noexcept + { return __atomic_add_fetch(&_M_p, _M_type_size(__d), + int(memory_order_seq_cst)); } + + __pointer_type + operator-=(ptrdiff_t __d) noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(__d), + int(memory_order_seq_cst)); } + + __pointer_type + operator-=(ptrdiff_t __d) volatile noexcept + { return __atomic_sub_fetch(&_M_p, _M_type_size(__d), + int(memory_order_seq_cst)); } + + bool + is_lock_free() const noexcept + { + // Produce a fake, minimally aligned pointer. + return __atomic_is_lock_free(sizeof(_M_p), + reinterpret_cast(-__alignof(_M_p))); + } + + bool + is_lock_free() const volatile noexcept + { + // Produce a fake, minimally aligned pointer. + return __atomic_is_lock_free(sizeof(_M_p), + reinterpret_cast(-__alignof(_M_p))); + } + + _GLIBCXX_ALWAYS_INLINE void + store(__pointer_type __p, + memory_order __m = memory_order_seq_cst) noexcept + { + memory_order __b = __m & __memory_order_mask; + + __glibcxx_assert(__b != memory_order_acquire); + __glibcxx_assert(__b != memory_order_acq_rel); + __glibcxx_assert(__b != memory_order_consume); + + __atomic_store_n(&_M_p, __p, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE void + store(__pointer_type __p, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_acquire); + __glibcxx_assert(__b != memory_order_acq_rel); + __glibcxx_assert(__b != memory_order_consume); + + __atomic_store_n(&_M_p, __p, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + load(memory_order __m = memory_order_seq_cst) const noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_release); + __glibcxx_assert(__b != memory_order_acq_rel); + + return __atomic_load_n(&_M_p, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { + memory_order __b = __m & __memory_order_mask; + __glibcxx_assert(__b != memory_order_release); + __glibcxx_assert(__b != memory_order_acq_rel); + + return __atomic_load_n(&_M_p, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + exchange(__pointer_type __p, + memory_order __m = memory_order_seq_cst) noexcept + { + return __atomic_exchange_n(&_M_p, __p, int(__m)); + } + + + _GLIBCXX_ALWAYS_INLINE __pointer_type + exchange(__pointer_type __p, + memory_order __m = memory_order_seq_cst) volatile noexcept + { + return __atomic_exchange_n(&_M_p, __p, int(__m)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, + memory_order __m2) noexcept + { + memory_order __b2 = __m2 & __memory_order_mask; + memory_order __b1 = __m1 & __memory_order_mask; + __glibcxx_assert(__b2 != memory_order_release); + __glibcxx_assert(__b2 != memory_order_acq_rel); + __glibcxx_assert(__b2 <= __b1); + + return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, + int(__m1), int(__m2)); + } + + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2, + memory_order __m1, + memory_order __m2) volatile noexcept + { + memory_order __b2 = __m2 & __memory_order_mask; + memory_order __b1 = __m1 & __memory_order_mask; + + __glibcxx_assert(__b2 != memory_order_release); + __glibcxx_assert(__b2 != memory_order_acq_rel); + __glibcxx_assert(__b2 <= __b1); + + return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, + int(__m1), int(__m2)); + } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + fetch_add(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_add(&_M_p, _M_type_size(__d), int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + fetch_add(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_add(&_M_p, _M_type_size(__d), int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + fetch_sub(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_fetch_sub(&_M_p, _M_type_size(__d), int(__m)); } + + _GLIBCXX_ALWAYS_INLINE __pointer_type + fetch_sub(ptrdiff_t __d, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_fetch_sub(&_M_p, _M_type_size(__d), int(__m)); } + }; + +#if __cplusplus > 201703L + // Implementation details of atomic_ref and atomic. + namespace __atomic_impl + { + // Remove volatile and create a non-deduced context for value arguments. + template + using _Val = remove_volatile_t<_Tp>; + + // As above, but for difference_type arguments. + template + using _Diff = conditional_t, ptrdiff_t, _Val<_Tp>>; + + template + _GLIBCXX_ALWAYS_INLINE bool + is_lock_free() noexcept + { + // Produce a fake, minimally aligned pointer. + return __atomic_is_lock_free(_Size, reinterpret_cast(-_Align)); + } + + template + _GLIBCXX_ALWAYS_INLINE void + store(_Tp* __ptr, _Val<_Tp> __t, memory_order __m) noexcept + { __atomic_store(__ptr, std::__addressof(__t), int(__m)); } + + template + _GLIBCXX_ALWAYS_INLINE _Val<_Tp> + load(const _Tp* __ptr, memory_order __m) noexcept + { + alignas(_Tp) unsigned char __buf[sizeof(_Tp)]; + auto* __dest = reinterpret_cast<_Val<_Tp>*>(__buf); + __atomic_load(__ptr, __dest, int(__m)); + return *__dest; + } + + template + _GLIBCXX_ALWAYS_INLINE _Val<_Tp> + exchange(_Tp* __ptr, _Val<_Tp> __desired, memory_order __m) noexcept + { + alignas(_Tp) unsigned char __buf[sizeof(_Tp)]; + auto* __dest = reinterpret_cast<_Val<_Tp>*>(__buf); + __atomic_exchange(__ptr, std::__addressof(__desired), __dest, int(__m)); + return *__dest; + } + + template + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_weak(_Tp* __ptr, _Val<_Tp>& __expected, + _Val<_Tp> __desired, memory_order __success, + memory_order __failure) noexcept + { + return __atomic_compare_exchange(__ptr, std::__addressof(__expected), + std::__addressof(__desired), true, + int(__success), int(__failure)); + } + + template + _GLIBCXX_ALWAYS_INLINE bool + compare_exchange_strong(_Tp* __ptr, _Val<_Tp>& __expected, + _Val<_Tp> __desired, memory_order __success, + memory_order __failure) noexcept + { + return __atomic_compare_exchange(__ptr, std::__addressof(__expected), + std::__addressof(__desired), false, + int(__success), int(__failure)); + } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + fetch_add(_Tp* __ptr, _Diff<_Tp> __i, memory_order __m) noexcept + { return __atomic_fetch_add(__ptr, __i, int(__m)); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + fetch_sub(_Tp* __ptr, _Diff<_Tp> __i, memory_order __m) noexcept + { return __atomic_fetch_sub(__ptr, __i, int(__m)); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + fetch_and(_Tp* __ptr, _Val<_Tp> __i, memory_order __m) noexcept + { return __atomic_fetch_and(__ptr, __i, int(__m)); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + fetch_or(_Tp* __ptr, _Val<_Tp> __i, memory_order __m) noexcept + { return __atomic_fetch_or(__ptr, __i, int(__m)); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + fetch_xor(_Tp* __ptr, _Val<_Tp> __i, memory_order __m) noexcept + { return __atomic_fetch_xor(__ptr, __i, int(__m)); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + __add_fetch(_Tp* __ptr, _Diff<_Tp> __i) noexcept + { return __atomic_add_fetch(__ptr, __i, __ATOMIC_SEQ_CST); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + __sub_fetch(_Tp* __ptr, _Diff<_Tp> __i) noexcept + { return __atomic_sub_fetch(__ptr, __i, __ATOMIC_SEQ_CST); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + __and_fetch(_Tp* __ptr, _Val<_Tp> __i) noexcept + { return __atomic_and_fetch(__ptr, __i, __ATOMIC_SEQ_CST); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + __or_fetch(_Tp* __ptr, _Val<_Tp> __i) noexcept + { return __atomic_or_fetch(__ptr, __i, __ATOMIC_SEQ_CST); } + + template + _GLIBCXX_ALWAYS_INLINE _Tp + __xor_fetch(_Tp* __ptr, _Val<_Tp> __i) noexcept + { return __atomic_xor_fetch(__ptr, __i, __ATOMIC_SEQ_CST); } + + template + _Tp + __fetch_add_flt(_Tp* __ptr, _Val<_Tp> __i, memory_order __m) noexcept + { + _Val<_Tp> __oldval = load(__ptr, memory_order_relaxed); + _Val<_Tp> __newval = __oldval + __i; + while (!compare_exchange_weak(__ptr, __oldval, __newval, __m, + memory_order_relaxed)) + __newval = __oldval + __i; + return __oldval; + } + + template + _Tp + __fetch_sub_flt(_Tp* __ptr, _Val<_Tp> __i, memory_order __m) noexcept + { + _Val<_Tp> __oldval = load(__ptr, memory_order_relaxed); + _Val<_Tp> __newval = __oldval - __i; + while (!compare_exchange_weak(__ptr, __oldval, __newval, __m, + memory_order_relaxed)) + __newval = __oldval - __i; + return __oldval; + } + + template + _Tp + __add_fetch_flt(_Tp* __ptr, _Val<_Tp> __i) noexcept + { + _Val<_Tp> __oldval = load(__ptr, memory_order_relaxed); + _Val<_Tp> __newval = __oldval + __i; + while (!compare_exchange_weak(__ptr, __oldval, __newval, + memory_order_seq_cst, + memory_order_relaxed)) + __newval = __oldval + __i; + return __newval; + } + + template + _Tp + __sub_fetch_flt(_Tp* __ptr, _Val<_Tp> __i) noexcept + { + _Val<_Tp> __oldval = load(__ptr, memory_order_relaxed); + _Val<_Tp> __newval = __oldval - __i; + while (!compare_exchange_weak(__ptr, __oldval, __newval, + memory_order_seq_cst, + memory_order_relaxed)) + __newval = __oldval - __i; + return __newval; + } + } // namespace __atomic_impl + + // base class for atomic + template + struct __atomic_float + { + static_assert(is_floating_point_v<_Fp>); + + static constexpr size_t _S_alignment = __alignof__(_Fp); + + public: + using value_type = _Fp; + using difference_type = value_type; + + static constexpr bool is_always_lock_free + = __atomic_always_lock_free(sizeof(_Fp), 0); + + __atomic_float() = default; + + constexpr + __atomic_float(_Fp __t) : _M_fp(__t) + { } + + __atomic_float(const __atomic_float&) = delete; + __atomic_float& operator=(const __atomic_float&) = delete; + __atomic_float& operator=(const __atomic_float&) volatile = delete; + + _Fp + operator=(_Fp __t) volatile noexcept + { + this->store(__t); + return __t; + } + + _Fp + operator=(_Fp __t) noexcept + { + this->store(__t); + return __t; + } + + bool + is_lock_free() const volatile noexcept + { return __atomic_impl::is_lock_free(); } + + bool + is_lock_free() const noexcept + { return __atomic_impl::is_lock_free(); } + + void + store(_Fp __t, memory_order __m = memory_order_seq_cst) volatile noexcept + { __atomic_impl::store(&_M_fp, __t, __m); } + + void + store(_Fp __t, memory_order __m = memory_order_seq_cst) noexcept + { __atomic_impl::store(&_M_fp, __t, __m); } + + _Fp + load(memory_order __m = memory_order_seq_cst) const volatile noexcept + { return __atomic_impl::load(&_M_fp, __m); } + + _Fp + load(memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::load(&_M_fp, __m); } + + operator _Fp() const volatile noexcept { return this->load(); } + operator _Fp() const noexcept { return this->load(); } + + _Fp + exchange(_Fp __desired, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_impl::exchange(&_M_fp, __desired, __m); } + + _Fp + exchange(_Fp __desired, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_impl::exchange(&_M_fp, __desired, __m); } + + bool + compare_exchange_weak(_Fp& __expected, _Fp __desired, + memory_order __success, + memory_order __failure) noexcept + { + return __atomic_impl::compare_exchange_weak(&_M_fp, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_weak(_Fp& __expected, _Fp __desired, + memory_order __success, + memory_order __failure) volatile noexcept + { + return __atomic_impl::compare_exchange_weak(&_M_fp, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_strong(_Fp& __expected, _Fp __desired, + memory_order __success, + memory_order __failure) noexcept + { + return __atomic_impl::compare_exchange_strong(&_M_fp, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_strong(_Fp& __expected, _Fp __desired, + memory_order __success, + memory_order __failure) volatile noexcept + { + return __atomic_impl::compare_exchange_strong(&_M_fp, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_weak(_Fp& __expected, _Fp __desired, + memory_order __order = memory_order_seq_cst) + noexcept + { + return compare_exchange_weak(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_weak(_Fp& __expected, _Fp __desired, + memory_order __order = memory_order_seq_cst) + volatile noexcept + { + return compare_exchange_weak(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_strong(_Fp& __expected, _Fp __desired, + memory_order __order = memory_order_seq_cst) + noexcept + { + return compare_exchange_strong(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_strong(_Fp& __expected, _Fp __desired, + memory_order __order = memory_order_seq_cst) + volatile noexcept + { + return compare_exchange_strong(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + value_type + fetch_add(value_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_impl::__fetch_add_flt(&_M_fp, __i, __m); } + + value_type + fetch_add(value_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_impl::__fetch_add_flt(&_M_fp, __i, __m); } + + value_type + fetch_sub(value_type __i, + memory_order __m = memory_order_seq_cst) noexcept + { return __atomic_impl::__fetch_sub_flt(&_M_fp, __i, __m); } + + value_type + fetch_sub(value_type __i, + memory_order __m = memory_order_seq_cst) volatile noexcept + { return __atomic_impl::__fetch_sub_flt(&_M_fp, __i, __m); } + + value_type + operator+=(value_type __i) noexcept + { return __atomic_impl::__add_fetch_flt(&_M_fp, __i); } + + value_type + operator+=(value_type __i) volatile noexcept + { return __atomic_impl::__add_fetch_flt(&_M_fp, __i); } + + value_type + operator-=(value_type __i) noexcept + { return __atomic_impl::__sub_fetch_flt(&_M_fp, __i); } + + value_type + operator-=(value_type __i) volatile noexcept + { return __atomic_impl::__sub_fetch_flt(&_M_fp, __i); } + + private: + alignas(_S_alignment) _Fp _M_fp _GLIBCXX20_INIT(0); + }; +#undef _GLIBCXX20_INIT + + template, bool = is_floating_point_v<_Tp>> + struct __atomic_ref; + + // base class for non-integral, non-floating-point, non-pointer types + template + struct __atomic_ref<_Tp, false, false> + { + static_assert(is_trivially_copyable_v<_Tp>); + + // 1/2/4/8/16-byte types must be aligned to at least their size. + static constexpr int _S_min_alignment + = (sizeof(_Tp) & (sizeof(_Tp) - 1)) || sizeof(_Tp) > 16 + ? 0 : sizeof(_Tp); + + public: + using value_type = _Tp; + + static constexpr bool is_always_lock_free + = __atomic_always_lock_free(sizeof(_Tp), 0); + + static constexpr size_t required_alignment + = _S_min_alignment > alignof(_Tp) ? _S_min_alignment : alignof(_Tp); + + __atomic_ref& operator=(const __atomic_ref&) = delete; + + explicit + __atomic_ref(_Tp& __t) : _M_ptr(std::__addressof(__t)) + { __glibcxx_assert(((uintptr_t)_M_ptr % required_alignment) == 0); } + + __atomic_ref(const __atomic_ref&) noexcept = default; + + _Tp + operator=(_Tp __t) const noexcept + { + this->store(__t); + return __t; + } + + operator _Tp() const noexcept { return this->load(); } + + bool + is_lock_free() const noexcept + { return __atomic_impl::is_lock_free(); } + + void + store(_Tp __t, memory_order __m = memory_order_seq_cst) const noexcept + { __atomic_impl::store(_M_ptr, __t, __m); } + + _Tp + load(memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::load(_M_ptr, __m); } + + _Tp + exchange(_Tp __desired, memory_order __m = memory_order_seq_cst) + const noexcept + { return __atomic_impl::exchange(_M_ptr, __desired, __m); } + + bool + compare_exchange_weak(_Tp& __expected, _Tp __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_weak(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_strong(_Tp& __expected, _Tp __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_strong(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_weak(_Tp& __expected, _Tp __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_weak(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_strong(_Tp& __expected, _Tp __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_strong(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + private: + _Tp* _M_ptr; + }; + + // base class for atomic_ref + template + struct __atomic_ref<_Tp, true, false> + { + static_assert(is_integral_v<_Tp>); + + public: + using value_type = _Tp; + using difference_type = value_type; + + static constexpr bool is_always_lock_free + = __atomic_always_lock_free(sizeof(_Tp), 0); + + static constexpr size_t required_alignment + = sizeof(_Tp) > alignof(_Tp) ? sizeof(_Tp) : alignof(_Tp); + + __atomic_ref() = delete; + __atomic_ref& operator=(const __atomic_ref&) = delete; + + explicit + __atomic_ref(_Tp& __t) : _M_ptr(&__t) + { __glibcxx_assert(((uintptr_t)_M_ptr % required_alignment) == 0); } + + __atomic_ref(const __atomic_ref&) noexcept = default; + + _Tp + operator=(_Tp __t) const noexcept + { + this->store(__t); + return __t; + } + + operator _Tp() const noexcept { return this->load(); } + + bool + is_lock_free() const noexcept + { + return __atomic_impl::is_lock_free(); + } + + void + store(_Tp __t, memory_order __m = memory_order_seq_cst) const noexcept + { __atomic_impl::store(_M_ptr, __t, __m); } + + _Tp + load(memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::load(_M_ptr, __m); } + + _Tp + exchange(_Tp __desired, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::exchange(_M_ptr, __desired, __m); } + + bool + compare_exchange_weak(_Tp& __expected, _Tp __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_weak(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_strong(_Tp& __expected, _Tp __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_strong(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_weak(_Tp& __expected, _Tp __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_weak(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_strong(_Tp& __expected, _Tp __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_strong(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + value_type + fetch_add(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_add(_M_ptr, __i, __m); } + + value_type + fetch_sub(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_sub(_M_ptr, __i, __m); } + + value_type + fetch_and(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_and(_M_ptr, __i, __m); } + + value_type + fetch_or(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_or(_M_ptr, __i, __m); } + + value_type + fetch_xor(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_xor(_M_ptr, __i, __m); } + + _GLIBCXX_ALWAYS_INLINE value_type + operator++(int) const noexcept + { return fetch_add(1); } + + _GLIBCXX_ALWAYS_INLINE value_type + operator--(int) const noexcept + { return fetch_sub(1); } + + value_type + operator++() const noexcept + { return __atomic_impl::__add_fetch(_M_ptr, value_type(1)); } + + value_type + operator--() const noexcept + { return __atomic_impl::__sub_fetch(_M_ptr, value_type(1)); } + + value_type + operator+=(value_type __i) const noexcept + { return __atomic_impl::__add_fetch(_M_ptr, __i); } + + value_type + operator-=(value_type __i) const noexcept + { return __atomic_impl::__sub_fetch(_M_ptr, __i); } + + value_type + operator&=(value_type __i) const noexcept + { return __atomic_impl::__and_fetch(_M_ptr, __i); } + + value_type + operator|=(value_type __i) const noexcept + { return __atomic_impl::__or_fetch(_M_ptr, __i); } + + value_type + operator^=(value_type __i) const noexcept + { return __atomic_impl::__xor_fetch(_M_ptr, __i); } + + private: + _Tp* _M_ptr; + }; + + // base class for atomic_ref + template + struct __atomic_ref<_Fp, false, true> + { + static_assert(is_floating_point_v<_Fp>); + + public: + using value_type = _Fp; + using difference_type = value_type; + + static constexpr bool is_always_lock_free + = __atomic_always_lock_free(sizeof(_Fp), 0); + + static constexpr size_t required_alignment = __alignof__(_Fp); + + __atomic_ref() = delete; + __atomic_ref& operator=(const __atomic_ref&) = delete; + + explicit + __atomic_ref(_Fp& __t) : _M_ptr(&__t) + { __glibcxx_assert(((uintptr_t)_M_ptr % required_alignment) == 0); } + + __atomic_ref(const __atomic_ref&) noexcept = default; + + _Fp + operator=(_Fp __t) const noexcept + { + this->store(__t); + return __t; + } + + operator _Fp() const noexcept { return this->load(); } + + bool + is_lock_free() const noexcept + { + return __atomic_impl::is_lock_free(); + } + + void + store(_Fp __t, memory_order __m = memory_order_seq_cst) const noexcept + { __atomic_impl::store(_M_ptr, __t, __m); } + + _Fp + load(memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::load(_M_ptr, __m); } + + _Fp + exchange(_Fp __desired, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::exchange(_M_ptr, __desired, __m); } + + bool + compare_exchange_weak(_Fp& __expected, _Fp __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_weak(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_strong(_Fp& __expected, _Fp __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_strong(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_weak(_Fp& __expected, _Fp __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_weak(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_strong(_Fp& __expected, _Fp __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_strong(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + value_type + fetch_add(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::__fetch_add_flt(_M_ptr, __i, __m); } + + value_type + fetch_sub(value_type __i, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::__fetch_sub_flt(_M_ptr, __i, __m); } + + value_type + operator+=(value_type __i) const noexcept + { return __atomic_impl::__add_fetch_flt(_M_ptr, __i); } + + value_type + operator-=(value_type __i) const noexcept + { return __atomic_impl::__sub_fetch_flt(_M_ptr, __i); } + + private: + _Fp* _M_ptr; + }; + + // base class for atomic_ref + template + struct __atomic_ref<_Tp*, false, false> + { + public: + using value_type = _Tp*; + using difference_type = ptrdiff_t; + + static constexpr bool is_always_lock_free = ATOMIC_POINTER_LOCK_FREE == 2; + + static constexpr size_t required_alignment = __alignof__(_Tp*); + + __atomic_ref() = delete; + __atomic_ref& operator=(const __atomic_ref&) = delete; + + explicit + __atomic_ref(_Tp*& __t) : _M_ptr(std::__addressof(__t)) + { __glibcxx_assert(((uintptr_t)_M_ptr % required_alignment) == 0); } + + __atomic_ref(const __atomic_ref&) noexcept = default; + + _Tp* + operator=(_Tp* __t) const noexcept + { + this->store(__t); + return __t; + } + + operator _Tp*() const noexcept { return this->load(); } + + bool + is_lock_free() const noexcept + { + return __atomic_impl::is_lock_free(); + } + + void + store(_Tp* __t, memory_order __m = memory_order_seq_cst) const noexcept + { __atomic_impl::store(_M_ptr, __t, __m); } + + _Tp* + load(memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::load(_M_ptr, __m); } + + _Tp* + exchange(_Tp* __desired, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::exchange(_M_ptr, __desired, __m); } + + bool + compare_exchange_weak(_Tp*& __expected, _Tp* __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_weak(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_strong(_Tp*& __expected, _Tp* __desired, + memory_order __success, + memory_order __failure) const noexcept + { + return __atomic_impl::compare_exchange_strong(_M_ptr, + __expected, __desired, + __success, __failure); + } + + bool + compare_exchange_weak(_Tp*& __expected, _Tp* __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_weak(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + bool + compare_exchange_strong(_Tp*& __expected, _Tp* __desired, + memory_order __order = memory_order_seq_cst) + const noexcept + { + return compare_exchange_strong(__expected, __desired, __order, + __cmpexch_failure_order(__order)); + } + + _GLIBCXX_ALWAYS_INLINE value_type + fetch_add(difference_type __d, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_add(_M_ptr, _S_type_size(__d), __m); } + + _GLIBCXX_ALWAYS_INLINE value_type + fetch_sub(difference_type __d, + memory_order __m = memory_order_seq_cst) const noexcept + { return __atomic_impl::fetch_sub(_M_ptr, _S_type_size(__d), __m); } + + value_type + operator++(int) const noexcept + { return fetch_add(1); } + + value_type + operator--(int) const noexcept + { return fetch_sub(1); } + + value_type + operator++() const noexcept + { + return __atomic_impl::__add_fetch(_M_ptr, _S_type_size(1)); + } + + value_type + operator--() const noexcept + { + return __atomic_impl::__sub_fetch(_M_ptr, _S_type_size(1)); + } + + value_type + operator+=(difference_type __d) const noexcept + { + return __atomic_impl::__add_fetch(_M_ptr, _S_type_size(__d)); + } + + value_type + operator-=(difference_type __d) const noexcept + { + return __atomic_impl::__sub_fetch(_M_ptr, _S_type_size(__d)); + } + + private: + static constexpr ptrdiff_t + _S_type_size(ptrdiff_t __d) noexcept + { + static_assert(is_object_v<_Tp>); + return __d * sizeof(_Tp); + } + + _Tp** _M_ptr; + }; + +#endif // C++2a + + // @} group atomics + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/atomic_lockfree_defines.h b/resources/sources/avr-libstdcpp/include/bits/atomic_lockfree_defines.h new file mode 100644 index 000000000..f0b57aeee --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/atomic_lockfree_defines.h @@ -0,0 +1,66 @@ +// -*- C++ -*- header. + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/atomic_lockfree_defines.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{atomic} + */ + +#ifndef _GLIBCXX_ATOMIC_LOCK_FREE_H +#define _GLIBCXX_ATOMIC_LOCK_FREE_H 1 + +#pragma GCC system_header + +/** + * @addtogroup atomics + * @{ + */ + +/** + * Lock-free property. + * + * 0 indicates that the types are never lock-free. + * 1 indicates that the types are sometimes lock-free. + * 2 indicates that the types are always lock-free. + */ + +#if __cplusplus >= 201103L +#define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE +#define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE +#define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE +#ifdef _GLIBCXX_USE_CHAR8_T +#define ATOMIC_CHAR8_T_LOCK_FREE __GCC_ATOMIC_CHAR8_T_LOCK_FREE +#endif +#define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE +#define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE +#define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE +#define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE +#define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE +#define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE +#define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE +#endif + +// @} group atomics + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/boost_concept_check.h b/resources/sources/avr-libstdcpp/include/bits/boost_concept_check.h new file mode 100644 index 000000000..f12c1bdc2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/boost_concept_check.h @@ -0,0 +1,794 @@ +// -*- C++ -*- + +// Copyright (C) 2004-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +// (C) Copyright Jeremy Siek 2000. Permission to copy, use, modify, +// sell and distribute this software is granted provided this +// copyright notice appears in all copies. This software is provided +// "as is" without express or implied warranty, and with no claim as +// to its suitability for any purpose. +// + +/** @file bits/boost_concept_check.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + */ + +// GCC Note: based on version 1.12.0 of the Boost library. + +#ifndef _BOOST_CONCEPT_CHECK_H +#define _BOOST_CONCEPT_CHECK_H 1 + +#pragma GCC system_header + +#include +#include // for traits and tags + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wunused-local-typedefs" + +#define _IsUnused __attribute__ ((__unused__)) + +// When the C-C code is in use, we would like this function to do as little +// as possible at runtime, use as few resources as possible, and hopefully +// be elided out of existence... hmmm. +template +_GLIBCXX14_CONSTEXPR inline void __function_requires() +{ + void (_Concept::*__x)() _IsUnused = &_Concept::__constraints; +} + +// No definition: if this is referenced, there's a problem with +// the instantiating type not being one of the required integer types. +// Unfortunately, this results in a link-time error, not a compile-time error. +void __error_type_must_be_an_integer_type(); +void __error_type_must_be_an_unsigned_integer_type(); +void __error_type_must_be_a_signed_integer_type(); + +// ??? Should the "concept_checking*" structs begin with more than _ ? +#define _GLIBCXX_CLASS_REQUIRES(_type_var, _ns, _concept) \ + typedef void (_ns::_concept <_type_var>::* _func##_type_var##_concept)(); \ + template <_func##_type_var##_concept _Tp1> \ + struct _concept_checking##_type_var##_concept { }; \ + typedef _concept_checking##_type_var##_concept< \ + &_ns::_concept <_type_var>::__constraints> \ + _concept_checking_typedef##_type_var##_concept + +#define _GLIBCXX_CLASS_REQUIRES2(_type_var1, _type_var2, _ns, _concept) \ + typedef void (_ns::_concept <_type_var1,_type_var2>::* _func##_type_var1##_type_var2##_concept)(); \ + template <_func##_type_var1##_type_var2##_concept _Tp1> \ + struct _concept_checking##_type_var1##_type_var2##_concept { }; \ + typedef _concept_checking##_type_var1##_type_var2##_concept< \ + &_ns::_concept <_type_var1,_type_var2>::__constraints> \ + _concept_checking_typedef##_type_var1##_type_var2##_concept + +#define _GLIBCXX_CLASS_REQUIRES3(_type_var1, _type_var2, _type_var3, _ns, _concept) \ + typedef void (_ns::_concept <_type_var1,_type_var2,_type_var3>::* _func##_type_var1##_type_var2##_type_var3##_concept)(); \ + template <_func##_type_var1##_type_var2##_type_var3##_concept _Tp1> \ + struct _concept_checking##_type_var1##_type_var2##_type_var3##_concept { }; \ + typedef _concept_checking##_type_var1##_type_var2##_type_var3##_concept< \ + &_ns::_concept <_type_var1,_type_var2,_type_var3>::__constraints> \ + _concept_checking_typedef##_type_var1##_type_var2##_type_var3##_concept + +#define _GLIBCXX_CLASS_REQUIRES4(_type_var1, _type_var2, _type_var3, _type_var4, _ns, _concept) \ + typedef void (_ns::_concept <_type_var1,_type_var2,_type_var3,_type_var4>::* _func##_type_var1##_type_var2##_type_var3##_type_var4##_concept)(); \ + template <_func##_type_var1##_type_var2##_type_var3##_type_var4##_concept _Tp1> \ + struct _concept_checking##_type_var1##_type_var2##_type_var3##_type_var4##_concept { }; \ + typedef _concept_checking##_type_var1##_type_var2##_type_var3##_type_var4##_concept< \ + &_ns::_concept <_type_var1,_type_var2,_type_var3,_type_var4>::__constraints> \ + _concept_checking_typedef##_type_var1##_type_var2##_type_var3##_type_var4##_concept + + +template +struct _Aux_require_same { }; + +template +struct _Aux_require_same<_Tp,_Tp> { typedef _Tp _Type; }; + + template + struct _SameTypeConcept + { + void __constraints() { + typedef typename _Aux_require_same<_Tp1, _Tp2>::_Type _Required; + } + }; + + template + struct _IntegerConcept { + void __constraints() { + __error_type_must_be_an_integer_type(); + } + }; + template <> struct _IntegerConcept { void __constraints() {} }; + template <> struct _IntegerConcept { void __constraints(){} }; + template <> struct _IntegerConcept { void __constraints() {} }; + template <> struct _IntegerConcept { void __constraints() {} }; + template <> struct _IntegerConcept { void __constraints() {} }; + template <> struct _IntegerConcept { void __constraints() {} }; + template <> struct _IntegerConcept { void __constraints() {} }; + template <> struct _IntegerConcept + { void __constraints() {} }; + + template + struct _SignedIntegerConcept { + void __constraints() { + __error_type_must_be_a_signed_integer_type(); + } + }; + template <> struct _SignedIntegerConcept { void __constraints() {} }; + template <> struct _SignedIntegerConcept { void __constraints() {} }; + template <> struct _SignedIntegerConcept { void __constraints() {} }; + template <> struct _SignedIntegerConcept { void __constraints(){}}; + + template + struct _UnsignedIntegerConcept { + void __constraints() { + __error_type_must_be_an_unsigned_integer_type(); + } + }; + template <> struct _UnsignedIntegerConcept + { void __constraints() {} }; + template <> struct _UnsignedIntegerConcept + { void __constraints() {} }; + template <> struct _UnsignedIntegerConcept + { void __constraints() {} }; + template <> struct _UnsignedIntegerConcept + { void __constraints() {} }; + + //=========================================================================== + // Basic Concepts + + template + struct _DefaultConstructibleConcept + { + void __constraints() { + _Tp __a _IsUnused; // require default constructor + } + }; + + template + struct _AssignableConcept + { + void __constraints() { + __a = __a; // require assignment operator + __const_constraints(__a); + } + void __const_constraints(const _Tp& __b) { + __a = __b; // const required for argument to assignment + } + _Tp __a; + // possibly should be "Tp* a;" and then dereference "a" in constraint + // functions? present way would require a default ctor, i think... + }; + + template + struct _CopyConstructibleConcept + { + void __constraints() { + _Tp __a(__b); // require copy constructor + _Tp* __ptr _IsUnused = &__a; // require address of operator + __const_constraints(__a); + } + void __const_constraints(const _Tp& __a) { + _Tp __c _IsUnused(__a); // require const copy constructor + const _Tp* __ptr _IsUnused = &__a; // require const address of operator + } + _Tp __b; + }; + + // The SGI STL version of Assignable requires copy constructor and operator= + template + struct _SGIAssignableConcept + { + void __constraints() { + _Tp __b _IsUnused(__a); + __a = __a; // require assignment operator + __const_constraints(__a); + } + void __const_constraints(const _Tp& __b) { + _Tp __c _IsUnused(__b); + __a = __b; // const required for argument to assignment + } + _Tp __a; + }; + + template + struct _ConvertibleConcept + { + void __constraints() { + _To __y _IsUnused = __x; + } + _From __x; + }; + + // The C++ standard requirements for many concepts talk about return + // types that must be "convertible to bool". The problem with this + // requirement is that it leaves the door open for evil proxies that + // define things like operator|| with strange return types. Two + // possible solutions are: + // 1) require the return type to be exactly bool + // 2) stay with convertible to bool, and also + // specify stuff about all the logical operators. + // For now we just test for convertible to bool. + template + void __aux_require_boolean_expr(const _Tp& __t) { + bool __x _IsUnused = __t; + } + +// FIXME + template + struct _EqualityComparableConcept + { + void __constraints() { + __aux_require_boolean_expr(__a == __b); + } + _Tp __a, __b; + }; + + template + struct _LessThanComparableConcept + { + void __constraints() { + __aux_require_boolean_expr(__a < __b); + } + _Tp __a, __b; + }; + + // This is equivalent to SGI STL's LessThanComparable. + template + struct _ComparableConcept + { + void __constraints() { + __aux_require_boolean_expr(__a < __b); + __aux_require_boolean_expr(__a > __b); + __aux_require_boolean_expr(__a <= __b); + __aux_require_boolean_expr(__a >= __b); + } + _Tp __a, __b; + }; + +#define _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(_OP,_NAME) \ + template \ + struct _NAME { \ + void __constraints() { (void)__constraints_(); } \ + bool __constraints_() { \ + return __a _OP __b; \ + } \ + _First __a; \ + _Second __b; \ + } + +#define _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(_OP,_NAME) \ + template \ + struct _NAME { \ + void __constraints() { (void)__constraints_(); } \ + _Ret __constraints_() { \ + return __a _OP __b; \ + } \ + _First __a; \ + _Second __b; \ + } + + _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(==, _EqualOpConcept); + _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(!=, _NotEqualOpConcept); + _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(<, _LessThanOpConcept); + _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(<=, _LessEqualOpConcept); + _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(>, _GreaterThanOpConcept); + _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(>=, _GreaterEqualOpConcept); + + _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(+, _PlusOpConcept); + _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(*, _TimesOpConcept); + _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(/, _DivideOpConcept); + _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(-, _SubtractOpConcept); + _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(%, _ModOpConcept); + +#undef _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT +#undef _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT + + //=========================================================================== + // Function Object Concepts + + template + struct _GeneratorConcept + { + void __constraints() { + const _Return& __r _IsUnused = __f();// require operator() member function + } + _Func __f; + }; + + + template + struct _GeneratorConcept<_Func,void> + { + void __constraints() { + __f(); // require operator() member function + } + _Func __f; + }; + + template + struct _UnaryFunctionConcept + { + void __constraints() { + __r = __f(__arg); // require operator() + } + _Func __f; + _Arg __arg; + _Return __r; + }; + + template + struct _UnaryFunctionConcept<_Func, void, _Arg> { + void __constraints() { + __f(__arg); // require operator() + } + _Func __f; + _Arg __arg; + }; + + template + struct _BinaryFunctionConcept + { + void __constraints() { + __r = __f(__first, __second); // require operator() + } + _Func __f; + _First __first; + _Second __second; + _Return __r; + }; + + template + struct _BinaryFunctionConcept<_Func, void, _First, _Second> + { + void __constraints() { + __f(__first, __second); // require operator() + } + _Func __f; + _First __first; + _Second __second; + }; + + template + struct _UnaryPredicateConcept + { + void __constraints() { + __aux_require_boolean_expr(__f(__arg)); // require op() returning bool + } + _Func __f; + _Arg __arg; + }; + + template + struct _BinaryPredicateConcept + { + void __constraints() { + __aux_require_boolean_expr(__f(__a, __b)); // require op() returning bool + } + _Func __f; + _First __a; + _Second __b; + }; + + // use this when functor is used inside a container class like std::set + template + struct _Const_BinaryPredicateConcept { + void __constraints() { + __const_constraints(__f); + } + void __const_constraints(const _Func& __fun) { + __function_requires<_BinaryPredicateConcept<_Func, _First, _Second> >(); + // operator() must be a const member function + __aux_require_boolean_expr(__fun(__a, __b)); + } + _Func __f; + _First __a; + _Second __b; + }; + + //=========================================================================== + // Iterator Concepts + + template + struct _TrivialIteratorConcept + { + void __constraints() { +// __function_requires< _DefaultConstructibleConcept<_Tp> >(); + __function_requires< _AssignableConcept<_Tp> >(); + __function_requires< _EqualityComparableConcept<_Tp> >(); +// typedef typename std::iterator_traits<_Tp>::value_type _V; + (void)*__i; // require dereference operator + } + _Tp __i; + }; + + template + struct _Mutable_TrivialIteratorConcept + { + void __constraints() { + __function_requires< _TrivialIteratorConcept<_Tp> >(); + *__i = *__j; // require dereference and assignment + } + _Tp __i, __j; + }; + + template + struct _InputIteratorConcept + { + void __constraints() { + __function_requires< _TrivialIteratorConcept<_Tp> >(); + // require iterator_traits typedef's + typedef typename std::iterator_traits<_Tp>::difference_type _Diff; +// __function_requires< _SignedIntegerConcept<_Diff> >(); + typedef typename std::iterator_traits<_Tp>::reference _Ref; + typedef typename std::iterator_traits<_Tp>::pointer _Pt; + typedef typename std::iterator_traits<_Tp>::iterator_category _Cat; + __function_requires< _ConvertibleConcept< + typename std::iterator_traits<_Tp>::iterator_category, + std::input_iterator_tag> >(); + ++__i; // require preincrement operator + __i++; // require postincrement operator + } + _Tp __i; + }; + + template + struct _OutputIteratorConcept + { + void __constraints() { + __function_requires< _AssignableConcept<_Tp> >(); + ++__i; // require preincrement operator + __i++; // require postincrement operator + *__i++ = __t; // require postincrement and assignment + } + _Tp __i; + _ValueT __t; + }; + + template + struct _ForwardIteratorConcept + { + void __constraints() { + __function_requires< _InputIteratorConcept<_Tp> >(); + __function_requires< _DefaultConstructibleConcept<_Tp> >(); + __function_requires< _ConvertibleConcept< + typename std::iterator_traits<_Tp>::iterator_category, + std::forward_iterator_tag> >(); + typedef typename std::iterator_traits<_Tp>::reference _Ref; + _Ref __r _IsUnused = *__i; + } + _Tp __i; + }; + + template + struct _Mutable_ForwardIteratorConcept + { + void __constraints() { + __function_requires< _ForwardIteratorConcept<_Tp> >(); + *__i++ = *__i; // require postincrement and assignment + } + _Tp __i; + }; + + template + struct _BidirectionalIteratorConcept + { + void __constraints() { + __function_requires< _ForwardIteratorConcept<_Tp> >(); + __function_requires< _ConvertibleConcept< + typename std::iterator_traits<_Tp>::iterator_category, + std::bidirectional_iterator_tag> >(); + --__i; // require predecrement operator + __i--; // require postdecrement operator + } + _Tp __i; + }; + + template + struct _Mutable_BidirectionalIteratorConcept + { + void __constraints() { + __function_requires< _BidirectionalIteratorConcept<_Tp> >(); + __function_requires< _Mutable_ForwardIteratorConcept<_Tp> >(); + *__i-- = *__i; // require postdecrement and assignment + } + _Tp __i; + }; + + + template + struct _RandomAccessIteratorConcept + { + void __constraints() { + __function_requires< _BidirectionalIteratorConcept<_Tp> >(); + __function_requires< _ComparableConcept<_Tp> >(); + __function_requires< _ConvertibleConcept< + typename std::iterator_traits<_Tp>::iterator_category, + std::random_access_iterator_tag> >(); + // ??? We don't use _Ref, are we just checking for "referenceability"? + typedef typename std::iterator_traits<_Tp>::reference _Ref; + + __i += __n; // require assignment addition operator + __i = __i + __n; __i = __n + __i; // require addition with difference type + __i -= __n; // require assignment subtraction op + __i = __i - __n; // require subtraction with + // difference type + __n = __i - __j; // require difference operator + (void)__i[__n]; // require element access operator + } + _Tp __a, __b; + _Tp __i, __j; + typename std::iterator_traits<_Tp>::difference_type __n; + }; + + template + struct _Mutable_RandomAccessIteratorConcept + { + void __constraints() { + __function_requires< _RandomAccessIteratorConcept<_Tp> >(); + __function_requires< _Mutable_BidirectionalIteratorConcept<_Tp> >(); + __i[__n] = *__i; // require element access and assignment + } + _Tp __i; + typename std::iterator_traits<_Tp>::difference_type __n; + }; + + //=========================================================================== + // Container Concepts + + template + struct _ContainerConcept + { + typedef typename _Container::value_type _Value_type; + typedef typename _Container::difference_type _Difference_type; + typedef typename _Container::size_type _Size_type; + typedef typename _Container::const_reference _Const_reference; + typedef typename _Container::const_pointer _Const_pointer; + typedef typename _Container::const_iterator _Const_iterator; + + void __constraints() { + __function_requires< _InputIteratorConcept<_Const_iterator> >(); + __function_requires< _AssignableConcept<_Container> >(); + const _Container __c; + __i = __c.begin(); + __i = __c.end(); + __n = __c.size(); + __n = __c.max_size(); + __b = __c.empty(); + } + bool __b; + _Const_iterator __i; + _Size_type __n; + }; + + template + struct _Mutable_ContainerConcept + { + typedef typename _Container::value_type _Value_type; + typedef typename _Container::reference _Reference; + typedef typename _Container::iterator _Iterator; + typedef typename _Container::pointer _Pointer; + + void __constraints() { + __function_requires< _ContainerConcept<_Container> >(); + __function_requires< _AssignableConcept<_Value_type> >(); + __function_requires< _InputIteratorConcept<_Iterator> >(); + + __i = __c.begin(); + __i = __c.end(); + __c.swap(__c2); + } + _Iterator __i; + _Container __c, __c2; + }; + + template + struct _ForwardContainerConcept + { + void __constraints() { + __function_requires< _ContainerConcept<_ForwardContainer> >(); + typedef typename _ForwardContainer::const_iterator _Const_iterator; + __function_requires< _ForwardIteratorConcept<_Const_iterator> >(); + } + }; + + template + struct _Mutable_ForwardContainerConcept + { + void __constraints() { + __function_requires< _ForwardContainerConcept<_ForwardContainer> >(); + __function_requires< _Mutable_ContainerConcept<_ForwardContainer> >(); + typedef typename _ForwardContainer::iterator _Iterator; + __function_requires< _Mutable_ForwardIteratorConcept<_Iterator> >(); + } + }; + + template + struct _ReversibleContainerConcept + { + typedef typename _ReversibleContainer::const_iterator _Const_iterator; + typedef typename _ReversibleContainer::const_reverse_iterator + _Const_reverse_iterator; + + void __constraints() { + __function_requires< _ForwardContainerConcept<_ReversibleContainer> >(); + __function_requires< _BidirectionalIteratorConcept<_Const_iterator> >(); + __function_requires< + _BidirectionalIteratorConcept<_Const_reverse_iterator> >(); + + const _ReversibleContainer __c; + _Const_reverse_iterator __i = __c.rbegin(); + __i = __c.rend(); + } + }; + + template + struct _Mutable_ReversibleContainerConcept + { + typedef typename _ReversibleContainer::iterator _Iterator; + typedef typename _ReversibleContainer::reverse_iterator _Reverse_iterator; + + void __constraints() { + __function_requires<_ReversibleContainerConcept<_ReversibleContainer> >(); + __function_requires< + _Mutable_ForwardContainerConcept<_ReversibleContainer> >(); + __function_requires<_Mutable_BidirectionalIteratorConcept<_Iterator> >(); + __function_requires< + _Mutable_BidirectionalIteratorConcept<_Reverse_iterator> >(); + + _Reverse_iterator __i = __c.rbegin(); + __i = __c.rend(); + } + _ReversibleContainer __c; + }; + + template + struct _RandomAccessContainerConcept + { + typedef typename _RandomAccessContainer::size_type _Size_type; + typedef typename _RandomAccessContainer::const_reference _Const_reference; + typedef typename _RandomAccessContainer::const_iterator _Const_iterator; + typedef typename _RandomAccessContainer::const_reverse_iterator + _Const_reverse_iterator; + + void __constraints() { + __function_requires< + _ReversibleContainerConcept<_RandomAccessContainer> >(); + __function_requires< _RandomAccessIteratorConcept<_Const_iterator> >(); + __function_requires< + _RandomAccessIteratorConcept<_Const_reverse_iterator> >(); + + const _RandomAccessContainer __c; + _Const_reference __r _IsUnused = __c[__n]; + } + _Size_type __n; + }; + + template + struct _Mutable_RandomAccessContainerConcept + { + typedef typename _RandomAccessContainer::size_type _Size_type; + typedef typename _RandomAccessContainer::reference _Reference; + typedef typename _RandomAccessContainer::iterator _Iterator; + typedef typename _RandomAccessContainer::reverse_iterator _Reverse_iterator; + + void __constraints() { + __function_requires< + _RandomAccessContainerConcept<_RandomAccessContainer> >(); + __function_requires< + _Mutable_ReversibleContainerConcept<_RandomAccessContainer> >(); + __function_requires< _Mutable_RandomAccessIteratorConcept<_Iterator> >(); + __function_requires< + _Mutable_RandomAccessIteratorConcept<_Reverse_iterator> >(); + + _Reference __r _IsUnused = __c[__i]; + } + _Size_type __i; + _RandomAccessContainer __c; + }; + + // A Sequence is inherently mutable + template + struct _SequenceConcept + { + typedef typename _Sequence::reference _Reference; + typedef typename _Sequence::const_reference _Const_reference; + + void __constraints() { + // Matt Austern's book puts DefaultConstructible here, the C++ + // standard places it in Container + // function_requires< DefaultConstructible >(); + __function_requires< _Mutable_ForwardContainerConcept<_Sequence> >(); + __function_requires< _DefaultConstructibleConcept<_Sequence> >(); + + _Sequence + __c _IsUnused(__n, __t), + __c2 _IsUnused(__first, __last); + + __c.insert(__p, __t); + __c.insert(__p, __n, __t); + __c.insert(__p, __first, __last); + + __c.erase(__p); + __c.erase(__p, __q); + + _Reference __r _IsUnused = __c.front(); + + __const_constraints(__c); + } + void __const_constraints(const _Sequence& __c) { + _Const_reference __r _IsUnused = __c.front(); + } + typename _Sequence::value_type __t; + typename _Sequence::size_type __n; + typename _Sequence::value_type *__first, *__last; + typename _Sequence::iterator __p, __q; + }; + + template + struct _FrontInsertionSequenceConcept + { + void __constraints() { + __function_requires< _SequenceConcept<_FrontInsertionSequence> >(); + + __c.push_front(__t); + __c.pop_front(); + } + _FrontInsertionSequence __c; + typename _FrontInsertionSequence::value_type __t; + }; + + template + struct _BackInsertionSequenceConcept + { + typedef typename _BackInsertionSequence::reference _Reference; + typedef typename _BackInsertionSequence::const_reference _Const_reference; + + void __constraints() { + __function_requires< _SequenceConcept<_BackInsertionSequence> >(); + + __c.push_back(__t); + __c.pop_back(); + _Reference __r _IsUnused = __c.back(); + } + void __const_constraints(const _BackInsertionSequence& __c) { + _Const_reference __r _IsUnused = __c.back(); + }; + _BackInsertionSequence __c; + typename _BackInsertionSequence::value_type __t; + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#pragma GCC diagnostic pop +#undef _IsUnused + +#endif // _GLIBCXX_BOOST_CONCEPT_CHECK + + diff --git a/resources/sources/avr-libstdcpp/include/bits/c++0x_warning.h b/resources/sources/avr-libstdcpp/include/bits/c++0x_warning.h new file mode 100644 index 000000000..83dc80c34 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/c++0x_warning.h @@ -0,0 +1,37 @@ +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/c++0x_warning.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iosfwd} + */ + +#ifndef _CXX0X_WARNING_H +#define _CXX0X_WARNING_H 1 + +#if __cplusplus < 201103L +#error This file requires compiler and library support \ +for the ISO C++ 2011 standard. This support must be enabled \ +with the -std=c++11 or -std=gnu++11 compiler options. +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/c++allocator.h b/resources/sources/avr-libstdcpp/include/bits/c++allocator.h new file mode 100644 index 000000000..6392d2207 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/c++allocator.h @@ -0,0 +1,59 @@ +// Base to std::allocator -*- C++ -*- + +// Copyright (C) 2004-2018 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/c++allocator.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _GLIBCXX_CXX_ALLOCATOR_H +#define _GLIBCXX_CXX_ALLOCATOR_H 1 + +#include + +#if __cplusplus >= 201103L +namespace std +{ + /** + * @brief An alias to the base class for std::allocator. + * @ingroup allocators + * + * Used to set the std::allocator base class to + * __gnu_cxx::new_allocator. + * + * @tparam _Tp Type of allocated object. + */ + template + using __allocator_base = __gnu_cxx::new_allocator<_Tp>; +} +#else +// Define new_allocator as the base class to std::allocator. +# define __allocator_base __gnu_cxx::new_allocator +#endif + +#if defined(__SANITIZE_ADDRESS__) && !defined(_GLIBCXX_SANITIZE_STD_ALLOCATOR) +# define _GLIBCXX_SANITIZE_STD_ALLOCATOR 1 +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/c++config.h b/resources/sources/avr-libstdcpp/include/bits/c++config.h new file mode 100644 index 000000000..29b3eb2f0 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/c++config.h @@ -0,0 +1,2074 @@ +// Predefined symbols and macros -*- C++ -*- + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/c++config.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{version} + */ + +#ifndef _GLIBCXX_CXX_CONFIG_H +#define _GLIBCXX_CXX_CONFIG_H 1 + +// The major release number for the GCC release the C++ library belongs to. +#define _GLIBCXX_RELEASE 10 + +// The datestamp of the C++ library in compressed ISO date format. +#define __GLIBCXX__ 20201103 + +// Macros for various attributes. +// _GLIBCXX_PURE +// _GLIBCXX_CONST +// _GLIBCXX_NORETURN +// _GLIBCXX_NOTHROW +// _GLIBCXX_VISIBILITY +#ifndef _GLIBCXX_PURE +# define _GLIBCXX_PURE __attribute__ ((__pure__)) +#endif + +#ifndef _GLIBCXX_CONST +# define _GLIBCXX_CONST __attribute__ ((__const__)) +#endif + +#ifndef _GLIBCXX_NORETURN +# define _GLIBCXX_NORETURN __attribute__ ((__noreturn__)) +#endif + +// See below for C++ +#ifndef _GLIBCXX_NOTHROW +# ifndef __cplusplus +# define _GLIBCXX_NOTHROW __attribute__((__nothrow__)) +# endif +#endif + +// Macros for visibility attributes. +// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY +// _GLIBCXX_VISIBILITY +#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY + +#ifdef _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY +# define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V))) +#else +// If this is not supplied by the OS-specific or CPU-specific +// headers included below, it will be defined to an empty default. +# define _GLIBCXX_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY(V) +#endif + +// Macros for deprecated attributes. +// _GLIBCXX_USE_DEPRECATED +// _GLIBCXX_DEPRECATED +// _GLIBCXX_DEPRECATED_SUGGEST +// _GLIBCXX17_DEPRECATED +// _GLIBCXX20_DEPRECATED( string-literal ) +#ifndef _GLIBCXX_USE_DEPRECATED +# define _GLIBCXX_USE_DEPRECATED 1 +#endif + +#if defined(__DEPRECATED) && (__cplusplus >= 201103L) +# define _GLIBCXX_DEPRECATED __attribute__ ((__deprecated__)) +# define _GLIBCXX_DEPRECATED_SUGGEST(ALT) \ + __attribute__ ((__deprecated__ ("use '" ALT "' instead"))) +#else +# define _GLIBCXX_DEPRECATED +# define _GLIBCXX_DEPRECATED_SUGGEST(ALT) +#endif + +#if defined(__DEPRECATED) && (__cplusplus >= 201703L) +# define _GLIBCXX17_DEPRECATED [[__deprecated__]] +#else +# define _GLIBCXX17_DEPRECATED +#endif + +#if defined(__DEPRECATED) && (__cplusplus > 201703L) +# define _GLIBCXX20_DEPRECATED(MSG) [[deprecated(MSG)]] +#else +# define _GLIBCXX20_DEPRECATED(MSG) +#endif + +// Macros for ABI tag attributes. +#ifndef _GLIBCXX_ABI_TAG_CXX11 +# define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11"))) +#endif + +// Macro to warn about unused results. +#if __cplusplus >= 201703L +# define _GLIBCXX_NODISCARD [[__nodiscard__]] +#else +# define _GLIBCXX_NODISCARD +#endif + + + +#ifdef __cplusplus + +// Macro for constexpr, to support in mixed 03/0x mode. +#ifndef _GLIBCXX_CONSTEXPR +# if __cplusplus >= 201103L +# define _GLIBCXX_CONSTEXPR constexpr +# define _GLIBCXX_USE_CONSTEXPR constexpr +# else +# define _GLIBCXX_CONSTEXPR +# define _GLIBCXX_USE_CONSTEXPR const +# endif +#endif + +#ifndef _GLIBCXX14_CONSTEXPR +# if __cplusplus >= 201402L +# define _GLIBCXX14_CONSTEXPR constexpr +# else +# define _GLIBCXX14_CONSTEXPR +# endif +#endif + +#ifndef _GLIBCXX17_CONSTEXPR +# if __cplusplus >= 201703L +# define _GLIBCXX17_CONSTEXPR constexpr +# else +# define _GLIBCXX17_CONSTEXPR +# endif +#endif + +#ifndef _GLIBCXX20_CONSTEXPR +# if __cplusplus > 201703L +# define _GLIBCXX20_CONSTEXPR constexpr +# else +# define _GLIBCXX20_CONSTEXPR +# endif +#endif + +#ifndef _GLIBCXX17_INLINE +# if __cplusplus >= 201703L +# define _GLIBCXX17_INLINE inline +# else +# define _GLIBCXX17_INLINE +# endif +#endif + +// Macro for noexcept, to support in mixed 03/0x mode. +#ifndef _GLIBCXX_NOEXCEPT +# if __cplusplus >= 201103L +# define _GLIBCXX_NOEXCEPT noexcept +# define _GLIBCXX_NOEXCEPT_IF(...) noexcept(__VA_ARGS__) +# define _GLIBCXX_USE_NOEXCEPT noexcept +# define _GLIBCXX_THROW(_EXC) +# else +# define _GLIBCXX_NOEXCEPT +# define _GLIBCXX_NOEXCEPT_IF(...) +# define _GLIBCXX_USE_NOEXCEPT throw() +# define _GLIBCXX_THROW(_EXC) throw(_EXC) +# endif +#endif + +#ifndef _GLIBCXX_NOTHROW +# define _GLIBCXX_NOTHROW _GLIBCXX_USE_NOEXCEPT +#endif + +#ifndef _GLIBCXX_THROW_OR_ABORT +# ifdef __cpp_exceptions +# define _GLIBCXX_THROW_OR_ABORT(_EXC) (throw (_EXC)) +# else +# define _GLIBCXX_THROW_OR_ABORT(_EXC) (__builtin_abort()) +# endif +#endif + +#ifdef __cpp_noexcept_function_type +#define _GLIBCXX_NOEXCEPT_PARM , bool _NE +#define _GLIBCXX_NOEXCEPT_QUAL noexcept (_NE) +#else +#define _GLIBCXX_NOEXCEPT_PARM +#define _GLIBCXX_NOEXCEPT_QUAL +#endif + +// Macro for extern template, ie controlling template linkage via use +// of extern keyword on template declaration. As documented in the g++ +// manual, it inhibits all implicit instantiations and is used +// throughout the library to avoid multiple weak definitions for +// required types that are already explicitly instantiated in the +// library binary. This substantially reduces the binary size of +// resulting executables. +// Special case: _GLIBCXX_EXTERN_TEMPLATE == -1 disallows extern +// templates only in basic_string, thus activating its debug-mode +// checks even at -O0. +# define _GLIBCXX_EXTERN_TEMPLATE 1 + +/* + Outline of libstdc++ namespaces. + + namespace std + { + namespace __debug { } + namespace __parallel { } + namespace __cxx1998 { } + + namespace __detail { + namespace __variant { } // C++17 + } + + namespace rel_ops { } + + namespace tr1 + { + namespace placeholders { } + namespace regex_constants { } + namespace __detail { } + } + + namespace tr2 { } + + namespace decimal { } + + namespace chrono { } // C++11 + namespace placeholders { } // C++11 + namespace regex_constants { } // C++11 + namespace this_thread { } // C++11 + inline namespace literals { // C++14 + inline namespace chrono_literals { } // C++14 + inline namespace complex_literals { } // C++14 + inline namespace string_literals { } // C++14 + inline namespace string_view_literals { } // C++17 + } + } + + namespace abi { } + + namespace __gnu_cxx + { + namespace __detail { } + } + + For full details see: + http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html +*/ +namespace std +{ + typedef __SIZE_TYPE__ size_t; + typedef __PTRDIFF_TYPE__ ptrdiff_t; + +#if __cplusplus >= 201103L + typedef decltype(nullptr) nullptr_t; +#endif +} + +# define _GLIBCXX_USE_DUAL_ABI 1 + +#ifndef _GLIBCXX_USE_DUAL_ABI +// Ignore any pre-defined value of _GLIBCXX_USE_CXX11_ABI +# undef _GLIBCXX_USE_CXX11_ABI +#endif + +#ifndef _GLIBCXX_USE_CXX11_ABI +# define _GLIBCXX_USE_CXX11_ABI 1 +#endif + +#ifdef _GLIBCXX_USE_CXX11_ABI +namespace std +{ + inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { } +} +namespace __gnu_cxx +{ + inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { } +} +# define _GLIBCXX_NAMESPACE_CXX11 __cxx11:: +# define _GLIBCXX_BEGIN_NAMESPACE_CXX11 namespace __cxx11 { +# define _GLIBCXX_END_NAMESPACE_CXX11 } +# define _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_ABI_TAG_CXX11 +#else +# define _GLIBCXX_NAMESPACE_CXX11 +# define _GLIBCXX_BEGIN_NAMESPACE_CXX11 +# define _GLIBCXX_END_NAMESPACE_CXX11 +# define _GLIBCXX_DEFAULT_ABI_TAG +#endif + +// Defined if inline namespaces are used for versioning. +//#define _GLIBCXX_INLINE_VERSION + +// Inline namespace for symbol versioning. +#ifdef _GLIBCXX_INLINE_VERSION +# define _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace __8 { +# define _GLIBCXX_END_NAMESPACE_VERSION } + +namespace std +{ +inline _GLIBCXX_BEGIN_NAMESPACE_VERSION +#if __cplusplus >= 201402L + inline namespace literals { + inline namespace chrono_literals { } + inline namespace complex_literals { } + inline namespace string_literals { } +#if __cplusplus > 201402L + inline namespace string_view_literals { } +#endif // C++17 + } +#endif // C++14 +_GLIBCXX_END_NAMESPACE_VERSION +} + +namespace __gnu_cxx +{ +inline _GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_END_NAMESPACE_VERSION +} + +#else +# define _GLIBCXX_BEGIN_NAMESPACE_VERSION +# define _GLIBCXX_END_NAMESPACE_VERSION +#endif + +// Inline namespaces for special modes: debug, parallel. +#if defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_PARALLEL) +namespace std +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Non-inline namespace for components replaced by alternates in active mode. + namespace __cxx1998 + { +# if _GLIBCXX_USE_CXX11_ABI + inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { } +# endif + } + +_GLIBCXX_END_NAMESPACE_VERSION + + // Inline namespace for debug mode. +# ifdef _GLIBCXX_DEBUG + inline namespace __debug { } +# endif + + // Inline namespaces for parallel mode. +# ifdef _GLIBCXX_PARALLEL + inline namespace __parallel { } +# endif +} + +// Check for invalid usage and unsupported mixed-mode use. +# if defined(_GLIBCXX_DEBUG) && defined(_GLIBCXX_PARALLEL) +# error illegal use of multiple inlined namespaces +# endif + +// Check for invalid use due to lack for weak symbols. +# if __NO_INLINE__ && !__GXX_WEAK__ +# warning currently using inlined namespace mode which may fail \ + without inlining due to lack of weak symbols +# endif +#endif + +// Macros for namespace scope. Either namespace std:: or the name +// of some nested namespace within it corresponding to the active mode. +// _GLIBCXX_STD_A +// _GLIBCXX_STD_C +// +// Macros for opening/closing conditional namespaces. +// _GLIBCXX_BEGIN_NAMESPACE_ALGO +// _GLIBCXX_END_NAMESPACE_ALGO +// _GLIBCXX_BEGIN_NAMESPACE_CONTAINER +// _GLIBCXX_END_NAMESPACE_CONTAINER +#if defined(_GLIBCXX_DEBUG) +# define _GLIBCXX_STD_C __cxx1998 +# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER \ + namespace _GLIBCXX_STD_C { +# define _GLIBCXX_END_NAMESPACE_CONTAINER } +#else +# define _GLIBCXX_STD_C std +# define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER +# define _GLIBCXX_END_NAMESPACE_CONTAINER +#endif + +#ifdef _GLIBCXX_PARALLEL +# define _GLIBCXX_STD_A __cxx1998 +# define _GLIBCXX_BEGIN_NAMESPACE_ALGO \ + namespace _GLIBCXX_STD_A { +# define _GLIBCXX_END_NAMESPACE_ALGO } +#else +# define _GLIBCXX_STD_A std +# define _GLIBCXX_BEGIN_NAMESPACE_ALGO +# define _GLIBCXX_END_NAMESPACE_ALGO +#endif + +// GLIBCXX_ABI Deprecated +// Define if compatibility should be provided for -mlong-double-64. +#undef _GLIBCXX_LONG_DOUBLE_COMPAT + +// Inline namespace for long double 128 mode. +#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ +namespace std +{ + inline namespace __gnu_cxx_ldbl128 { } +} +# define _GLIBCXX_NAMESPACE_LDBL __gnu_cxx_ldbl128:: +# define _GLIBCXX_BEGIN_NAMESPACE_LDBL namespace __gnu_cxx_ldbl128 { +# define _GLIBCXX_END_NAMESPACE_LDBL } +#else +# define _GLIBCXX_NAMESPACE_LDBL +# define _GLIBCXX_BEGIN_NAMESPACE_LDBL +# define _GLIBCXX_END_NAMESPACE_LDBL +#endif +#ifdef _GLIBCXX_USE_CXX11_ABI +# define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_CXX11 +# define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_CXX11 +# define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_CXX11 +#else +# define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_LDBL +# define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_LDBL +# define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_LDBL +#endif + +// Debug Mode implies checking assertions. +#if defined(_GLIBCXX_DEBUG) && !defined(_GLIBCXX_ASSERTIONS) +# define _GLIBCXX_ASSERTIONS 1 +#endif + +// Disable std::string explicit instantiation declarations in order to assert. +#ifdef _GLIBCXX_ASSERTIONS +# undef _GLIBCXX_EXTERN_TEMPLATE +# define _GLIBCXX_EXTERN_TEMPLATE -1 +#endif + +// Assert. +#if defined(_GLIBCXX_ASSERTIONS) \ + || defined(_GLIBCXX_PARALLEL) || defined(_GLIBCXX_PARALLEL_ASSERTIONS) +namespace std +{ + // Avoid the use of assert, because we're trying to keep the + // include out of the mix. + extern "C++" inline void + __replacement_assert(const char* __file, int __line, + const char* __function, const char* __condition) + { + __builtin_printf("%s:%d: %s: Assertion '%s' failed.\n", __file, __line, + __function, __condition); + __builtin_abort(); + } +} +#define __glibcxx_assert_impl(_Condition) \ + do \ + { \ + if (! (_Condition)) \ + std::__replacement_assert(__FILE__, __LINE__, __PRETTY_FUNCTION__, \ + #_Condition); \ + } while (false) +#endif + +#if defined(_GLIBCXX_ASSERTIONS) +# define __glibcxx_assert(_Condition) __glibcxx_assert_impl(_Condition) +#else +# define __glibcxx_assert(_Condition) +#endif + +// Macros for race detectors. +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) and +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) should be used to explain +// atomic (lock-free) synchronization to race detectors: +// the race detector will infer a happens-before arc from the former to the +// latter when they share the same argument pointer. +// +// The most frequent use case for these macros (and the only case in the +// current implementation of the library) is atomic reference counting: +// void _M_remove_reference() +// { +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount); +// if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, -1) <= 0) +// { +// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount); +// _M_destroy(__a); +// } +// } +// The annotations in this example tell the race detector that all memory +// accesses occurred when the refcount was positive do not race with +// memory accesses which occurred after the refcount became zero. +#ifndef _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE +# define _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) +#endif +#ifndef _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER +# define _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) +#endif + +// Macros for C linkage: define extern "C" linkage only when using C++. +# define _GLIBCXX_BEGIN_EXTERN_C extern "C" { +# define _GLIBCXX_END_EXTERN_C } + +# define _GLIBCXX_USE_ALLOCATOR_NEW 1 + +#else // !__cplusplus +# define _GLIBCXX_BEGIN_EXTERN_C +# define _GLIBCXX_END_EXTERN_C +#endif + + +// First includes. + +// Pick up any OS-specific definitions. +//#include + +// Pick up any CPU-specific definitions. +//#include + +// If platform uses neither visibility nor psuedo-visibility, +// specify empty default for namespace annotation macros. +#ifndef _GLIBCXX_PSEUDO_VISIBILITY +# define _GLIBCXX_PSEUDO_VISIBILITY(V) +#endif + +// Certain function definitions that are meant to be overridable from +// user code are decorated with this macro. For some targets, this +// macro causes these definitions to be weak. +#ifndef _GLIBCXX_WEAK_DEFINITION +# define _GLIBCXX_WEAK_DEFINITION +#endif + +// By default, we assume that __GXX_WEAK__ also means that there is support +// for declaring functions as weak while not defining such functions. This +// allows for referring to functions provided by other libraries (e.g., +// libitm) without depending on them if the respective features are not used. +#ifndef _GLIBCXX_USE_WEAK_REF +# define _GLIBCXX_USE_WEAK_REF __GXX_WEAK__ +#endif + +// Conditionally enable annotations for the Transactional Memory TS on C++11. +// Most of the following conditions are due to limitations in the current +// implementation. +/*#if __cplusplus >= 201103L && _GLIBCXX_USE_CXX11_ABI \ + && _GLIBCXX_USE_DUAL_ABI && __cpp_transactional_memory >= 201505L \ + && !_GLIBCXX_FULLY_DYNAMIC_STRING && _GLIBCXX_USE_WEAK_REF \ + && _GLIBCXX_USE_ALLOCATOR_NEW +#define _GLIBCXX_TXN_SAFE transaction_safe +#define _GLIBCXX_TXN_SAFE_DYN transaction_safe_dynamic*/ +//#else +#define _GLIBCXX_TXN_SAFE +#define _GLIBCXX_TXN_SAFE_DYN +//#endif + +#if __cplusplus > 201402L +// In C++17 mathematical special functions are in namespace std. +# define _GLIBCXX_USE_STD_SPEC_FUNCS 1 +#elif __cplusplus >= 201103L && __STDCPP_WANT_MATH_SPEC_FUNCS__ != 0 +// For C++11 and C++14 they are in namespace std when requested. +# define _GLIBCXX_USE_STD_SPEC_FUNCS 1 +#endif + +// The remainder of the prewritten config is automatic; all the +// user hooks are listed above. + +// Create a boolean flag to be used to determine if --fast-math is set. +#ifdef __FAST_MATH__ +# define _GLIBCXX_FAST_MATH 1 +#else +# define _GLIBCXX_FAST_MATH 0 +#endif + +// This marks string literals in header files to be extracted for eventual +// translation. It is primarily used for messages in thrown exceptions; see +// src/functexcept.cc. We use __N because the more traditional _N is used +// for something else under certain OSes (see BADNAMES). + +// modm avr port: remove exception strings to save RAM +#define __N(msgid) ("") + +// For example, is known to #define min and max as macros... +#undef min +#undef max + +// N.B. these _GLIBCXX_USE_C99_XXX macros are defined unconditionally +// so they should be tested with #if not with #ifdef. +#if __cplusplus >= 201103L +# ifndef _GLIBCXX_USE_C99_MATH +# define _GLIBCXX_USE_C99_MATH _GLIBCXX11_USE_C99_MATH +# endif +# ifndef _GLIBCXX_USE_C99_COMPLEX +# define _GLIBCXX_USE_C99_COMPLEX _GLIBCXX11_USE_C99_COMPLEX +# endif +# ifndef _GLIBCXX_USE_C99_STDIO +# define _GLIBCXX_USE_C99_STDIO _GLIBCXX11_USE_C99_STDIO +# endif +# ifndef _GLIBCXX_USE_C99_STDLIB +# define _GLIBCXX_USE_C99_STDLIB _GLIBCXX11_USE_C99_STDLIB +# endif +# ifndef _GLIBCXX_USE_C99_WCHAR +# define _GLIBCXX_USE_C99_WCHAR _GLIBCXX11_USE_C99_WCHAR +# endif +#else +# ifndef _GLIBCXX_USE_C99_MATH +# define _GLIBCXX_USE_C99_MATH _GLIBCXX98_USE_C99_MATH +# endif +# ifndef _GLIBCXX_USE_C99_COMPLEX +# define _GLIBCXX_USE_C99_COMPLEX _GLIBCXX98_USE_C99_COMPLEX +# endif +# ifndef _GLIBCXX_USE_C99_STDIO +# define _GLIBCXX_USE_C99_STDIO _GLIBCXX98_USE_C99_STDIO +# endif +# ifndef _GLIBCXX_USE_C99_STDLIB +# define _GLIBCXX_USE_C99_STDLIB _GLIBCXX98_USE_C99_STDLIB +# endif +# ifndef _GLIBCXX_USE_C99_WCHAR +# define _GLIBCXX_USE_C99_WCHAR _GLIBCXX98_USE_C99_WCHAR +# endif +#endif + +// Unless explicitly specified, enable char8_t extensions only if the core +// language char8_t feature macro is defined. +#ifndef _GLIBCXX_USE_CHAR8_T +# ifdef __cpp_char8_t +# define _GLIBCXX_USE_CHAR8_T 1 +# endif +#endif +#ifdef _GLIBCXX_USE_CHAR8_T +# define __cpp_lib_char8_t 201907L +#endif + +/* Define if __float128 is supported on this host. */ +#if defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__) +#undef _GLIBCXX_USE_FLOAT128 +#endif + +#if __GNUC__ >= 7 +// Assume these are available if the compiler claims to be a recent GCC: +# define _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP 1 +# define _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE 1 +# define _GLIBCXX_HAVE_BUILTIN_LAUNDER 1 +# define _GLIBCXX_BUILTIN_IS_SAME_AS(T, U) __is_same_as(T, U) +# if __GNUC__ >= 9 +# define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1 +# endif +#elif defined(__is_identifier) && defined(__has_builtin) +// For non-GNU compilers: +# if ! __is_identifier(__has_unique_object_representations) +# define _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP 1 +# endif +# if ! __is_identifier(__is_aggregate) +# define _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE 1 +# endif +# if __has_builtin(__builtin_launder) +# define _GLIBCXX_HAVE_BUILTIN_LAUNDER 1 +# endif +# if __has_builtin(__builtin_is_constant_evaluated) +# define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1 +# endif +# if ! __is_identifier(__is_same) +# define _GLIBCXX_BUILTIN_IS_SAME_AS(T, U) __is_same(T, U) +# endif +#endif // GCC + +// PSTL configuration + +#if __cplusplus >= 201703L +// This header is not installed for freestanding: +#if __has_include() +// Preserved here so we have some idea which version of upstream we've pulled in +// #define PSTL_VERSION 9000 + +// For now this defaults to being based on the presence of Thread Building Blocks +# ifndef _GLIBCXX_USE_TBB_PAR_BACKEND +# define _GLIBCXX_USE_TBB_PAR_BACKEND __has_include() +# endif +// This section will need some rework when a new (default) backend type is added +# if _GLIBCXX_USE_TBB_PAR_BACKEND +# define _PSTL_PAR_BACKEND_TBB +# else +# define _PSTL_PAR_BACKEND_SERIAL +# endif + +# define _PSTL_ASSERT(_Condition) __glibcxx_assert(_Condition) +# define _PSTL_ASSERT_MSG(_Condition, _Message) __glibcxx_assert(_Condition) + +#include +#endif // __has_include +#endif // C++17 + +// End of prewritten config; the settings discovered at configure time follow. +/* config.h. Generated from config.h.in by configure. */ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define to 1 if you have the `acosf' function. */ +#define _GLIBCXX_HAVE_ACOSF 1 + +/* Define to 1 if you have the `acosl' function. */ +/* #undef _GLIBCXX_HAVE_ACOSL */ + +/* Define to 1 if you have the `aligned_alloc' function. */ +/* #undef _GLIBCXX_HAVE_ALIGNED_ALLOC */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_ARPA_INET_H */ + +/* Define to 1 if you have the `asinf' function. */ +#define _GLIBCXX_HAVE_ASINF 1 + +/* Define to 1 if you have the `asinl' function. */ +/* #undef _GLIBCXX_HAVE_ASINL */ + +/* Define to 1 if the target assembler supports .symver directive. */ +#define _GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE 1 + +/* Define to 1 if you have the `atan2f' function. */ +#define _GLIBCXX_HAVE_ATAN2F 1 + +/* Define to 1 if you have the `atan2l' function. */ +/* #undef _GLIBCXX_HAVE_ATAN2L */ + +/* Define to 1 if you have the `atanf' function. */ +#define _GLIBCXX_HAVE_ATANF 1 + +/* Define to 1 if you have the `atanl' function. */ +/* #undef _GLIBCXX_HAVE_ATANL */ + +/* Defined if shared_ptr reference counting should use atomic operations. */ +/* #undef _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY */ + +/* Define to 1 if you have the `at_quick_exit' function. */ +/* #undef _GLIBCXX_HAVE_AT_QUICK_EXIT */ + +/* Define to 1 if the target assembler supports thread-local storage. */ +/* #undef _GLIBCXX_HAVE_CC_TLS */ + +/* Define to 1 if you have the `ceilf' function. */ +#define _GLIBCXX_HAVE_CEILF 1 + +/* Define to 1 if you have the `ceill' function. */ +/* #undef _GLIBCXX_HAVE_CEILL */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_COMPLEX_H 1 + +/* Define to 1 if you have the `cosf' function. */ +#define _GLIBCXX_HAVE_COSF 1 + +/* Define to 1 if you have the `coshf' function. */ +#define _GLIBCXX_HAVE_COSHF 1 + +/* Define to 1 if you have the `coshl' function. */ +/* #undef _GLIBCXX_HAVE_COSHL */ + +/* Define to 1 if you have the `cosl' function. */ +/* #undef _GLIBCXX_HAVE_COSL */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_DIRENT_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_DLFCN_H */ + +/* Define if EBADMSG exists. */ +//#define _GLIBCXX_HAVE_EBADMSG 1 + +/* Define if ECANCELED exists. */ +//#define _GLIBCXX_HAVE_ECANCELED 1 + +/* Define if ECHILD exists. */ +//#define _GLIBCXX_HAVE_ECHILD 1 + +/* Define if EIDRM exists. */ +//#define _GLIBCXX_HAVE_EIDRM 1 + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_ENDIAN_H */ + +/* Define if ENODATA exists. */ +//#define _GLIBCXX_HAVE_ENODATA 1 + +/* Define if ENOLINK exists. */ +//#define _GLIBCXX_HAVE_ENOLINK 1 + +/* Define if ENOSPC exists. */ +//#define _GLIBCXX_HAVE_ENOSPC 1 + +/* Define if ENOSR exists. */ +//#define _GLIBCXX_HAVE_ENOSR 1 + +/* Define if ENOSTR exists. */ +//#define _GLIBCXX_HAVE_ENOSTR 1 + +/* Define if ENOTRECOVERABLE exists. */ +//#define _GLIBCXX_HAVE_ENOTRECOVERABLE 1 + +/* Define if ENOTSUP exists. */ +//#define _GLIBCXX_HAVE_ENOTSUP 1 + +/* Define if EOVERFLOW exists. */ +//#define _GLIBCXX_HAVE_EOVERFLOW 1 + +/* Define if EOWNERDEAD exists. */ +//#define _GLIBCXX_HAVE_EOWNERDEAD 1 + +/* Define if EPERM exists. */ +//#define _GLIBCXX_HAVE_EPERM 1 + +/* Define if EPROTO exists. */ +//#define _GLIBCXX_HAVE_EPROTO 1 + +/* Define if ETIME exists. */ +//#define _GLIBCXX_HAVE_ETIME 1 + +/* Define if ETIMEDOUT exists. */ +//#define _GLIBCXX_HAVE_ETIMEDOUT 1 + +/* Define if ETXTBSY exists. */ +//#define _GLIBCXX_HAVE_ETXTBSY 1 + +/* Define if EWOULDBLOCK exists. */ +//#define _GLIBCXX_HAVE_EWOULDBLOCK 1 + +/* Define to 1 if GCC 4.6 supported std::exception_ptr for the target */ +/* #undef _GLIBCXX_HAVE_EXCEPTION_PTR_SINCE_GCC46 */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_EXECINFO_H */ + +/* Define to 1 if you have the `expf' function. */ +#define _GLIBCXX_HAVE_EXPF 1 + +/* Define to 1 if you have the `expl' function. */ +/* #undef _GLIBCXX_HAVE_EXPL */ + +/* Define to 1 if you have the `fabsf' function. */ +#define _GLIBCXX_HAVE_FABSF 1 + +/* Define to 1 if you have the `fabsl' function. */ +/* #undef _GLIBCXX_HAVE_FABSL */ + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_FCNTL_H 1 + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_FENV_H */ + +/* Define to 1 if you have the `finite' function. */ +/* #undef _GLIBCXX_HAVE_FINITE */ + +/* Define to 1 if you have the `finitef' function. */ +/* #undef _GLIBCXX_HAVE_FINITEF */ + +/* Define to 1 if you have the `finitel' function. */ +/* #undef _GLIBCXX_HAVE_FINITEL */ + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_FLOAT_H 1 + +/* Define to 1 if you have the `floorf' function. */ +#define _GLIBCXX_HAVE_FLOORF 1 + +/* Define to 1 if you have the `floorl' function. */ +/* #undef _GLIBCXX_HAVE_FLOORL */ + +/* Define to 1 if you have the `fmodf' function. */ +#define _GLIBCXX_HAVE_FMODF 1 + +/* Define to 1 if you have the `fmodl' function. */ +/* #undef _GLIBCXX_HAVE_FMODL */ + +/* Define to 1 if you have the `fpclass' function. */ +/* #undef _GLIBCXX_HAVE_FPCLASS */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_FP_H */ + +/* Define to 1 if you have the `frexpf' function. */ +#define _GLIBCXX_HAVE_FREXPF 1 + +/* Define to 1 if you have the `frexpl' function. */ +/* #undef _GLIBCXX_HAVE_FREXPL */ + +/* Define if _Unwind_GetIPInfo is available. */ +//#define _GLIBCXX_HAVE_GETIPINFO 1 + +/* Define if gets is available in before C++14. */ +#define _GLIBCXX_HAVE_GETS 1 + +/* Define to 1 if you have the `hypot' function. */ +#define _GLIBCXX_HAVE_HYPOT 1 + +/* Define to 1 if you have the `hypotf' function. */ +/* #undef _GLIBCXX_HAVE_HYPOTF */ + +/* Define to 1 if you have the `hypotl' function. */ +/* #undef _GLIBCXX_HAVE_HYPOTL */ + +/* Define if you have the iconv() function. */ +//#define _GLIBCXX_HAVE_ICONV 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_IEEEFP_H 1 + +/* Define if int64_t is available in . */ +#define _GLIBCXX_HAVE_INT64_T 1 + +/* Define if int64_t is a long. */ +/* #undef _GLIBCXX_HAVE_INT64_T_LONG */ + +/* Define if int64_t is a long long. */ +#define _GLIBCXX_HAVE_INT64_T_LONG_LONG 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_INTTYPES_H 1 + +/* Define to 1 if you have the `isinf' function. */ +/* #undef _GLIBCXX_HAVE_ISINF */ + +/* Define to 1 if you have the `isinff' function. */ +/* #undef _GLIBCXX_HAVE_ISINFF */ + +/* Define to 1 if you have the `isinfl' function. */ +/* #undef _GLIBCXX_HAVE_ISINFL */ + +/* Define to 1 if you have the `isnan' function. */ +/* #undef _GLIBCXX_HAVE_ISNAN */ + +/* Define to 1 if you have the `isnanf' function. */ +/* #undef _GLIBCXX_HAVE_ISNANF */ + +/* Define to 1 if you have the `isnanl' function. */ +/* #undef _GLIBCXX_HAVE_ISNANL */ + +/* Defined if iswblank exists. */ +//#define _GLIBCXX_HAVE_ISWBLANK 1 + +/* Define if LC_MESSAGES is available in . */ +#define _GLIBCXX_HAVE_LC_MESSAGES 1 + +/* Define to 1 if you have the `ldexpf' function. */ +#define _GLIBCXX_HAVE_LDEXPF 1 + +/* Define to 1 if you have the `ldexpl' function. */ +/* #undef _GLIBCXX_HAVE_LDEXPL */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_LIBINTL_H */ + +/* Only used in build directory testsuite_hooks.h. */ +#define _GLIBCXX_HAVE_LIMIT_AS 0 + +/* Only used in build directory testsuite_hooks.h. */ +#define _GLIBCXX_HAVE_LIMIT_DATA 0 + +/* Only used in build directory testsuite_hooks.h. */ +#define _GLIBCXX_HAVE_LIMIT_FSIZE 0 + +/* Only used in build directory testsuite_hooks.h. */ +#define _GLIBCXX_HAVE_LIMIT_RSS 0 + +/* Only used in build directory testsuite_hooks.h. */ +#define _GLIBCXX_HAVE_LIMIT_VMEM 0 + +/* Define if futex syscall is available. */ +/* #undef _GLIBCXX_HAVE_LINUX_FUTEX */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_LINUX_RANDOM_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_LINUX_TYPES_H */ + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_LOCALE_H 1 + +/* Define to 1 if you have the `log10f' function. */ +#define _GLIBCXX_HAVE_LOG10F 1 + +/* Define to 1 if you have the `log10l' function. */ +/* #undef _GLIBCXX_HAVE_LOG10L */ + +/* Define to 1 if you have the `logf' function. */ +#define _GLIBCXX_HAVE_LOGF 1 + +/* Define to 1 if you have the `logl' function. */ +/* #undef _GLIBCXX_HAVE_LOGL */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_MACHINE_ENDIAN_H 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_MACHINE_PARAM_H 1 + +/* Define if mbstate_t exists in wchar.h. */ +//#define _GLIBCXX_HAVE_MBSTATE_T 1 + +/* Define to 1 if you have the `memalign' function. */ +//#define _GLIBCXX_HAVE_MEMALIGN 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_MEMORY_H 1 + +/* Define to 1 if you have the `modf' function. */ +/* #undef _GLIBCXX_HAVE_MODF */ + +/* Define to 1 if you have the `modff' function. */ +#define _GLIBCXX_HAVE_MODFF 1 + +/* Define to 1 if you have the `modfl' function. */ +/* #undef _GLIBCXX_HAVE_MODFL */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_NAN_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_NETDB_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_NETINET_IN_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_NETINET_TCP_H */ + +/* Define if defines obsolete isinf function. */ +/* #undef _GLIBCXX_HAVE_OBSOLETE_ISINF */ + +/* Define if defines obsolete isnan function. */ +/* #undef _GLIBCXX_HAVE_OBSOLETE_ISNAN */ + +/* Define if poll is available in . */ +/* #undef _GLIBCXX_HAVE_POLL */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_POLL_H */ + +/* Define to 1 if you have the `posix_memalign' function. */ +/* #undef _GLIBCXX_HAVE_POSIX_MEMALIGN */ + +/* Define to 1 if you have the `powf' function. */ +#define _GLIBCXX_HAVE_POWF 1 + +/* Define to 1 if you have the `powl' function. */ +/* #undef _GLIBCXX_HAVE_POWL */ + +/* Define to 1 if you have the `qfpclass' function. */ +/* #undef _GLIBCXX_HAVE_QFPCLASS */ + +/* Define to 1 if you have the `quick_exit' function. */ +/* #undef _GLIBCXX_HAVE_QUICK_EXIT */ + +/* Define to 1 if you have the `setenv' function. */ +/* #undef _GLIBCXX_HAVE_SETENV */ + +/* Define to 1 if you have the `sincos' function. */ +/* #undef _GLIBCXX_HAVE_SINCOS */ + +/* Define to 1 if you have the `sincosf' function. */ +/* #undef _GLIBCXX_HAVE_SINCOSF */ + +/* Define to 1 if you have the `sincosl' function. */ +/* #undef _GLIBCXX_HAVE_SINCOSL */ + +/* Define to 1 if you have the `sinf' function. */ +#define _GLIBCXX_HAVE_SINF 1 + +/* Define to 1 if you have the `sinhf' function. */ +#define _GLIBCXX_HAVE_SINHF 1 + +/* Define to 1 if you have the `sinhl' function. */ +/* #undef _GLIBCXX_HAVE_SINHL */ + +/* Define to 1 if you have the `sinl' function. */ +/* #undef _GLIBCXX_HAVE_SINL */ + +/* Defined if sleep exists. */ +//#define _GLIBCXX_HAVE_SLEEP 1 + +/* Define to 1 if you have the `sqrtf' function. */ +#define _GLIBCXX_HAVE_SQRTF 1 + +/* Define to 1 if you have the `sqrtl' function. */ +/* #undef _GLIBCXX_HAVE_SQRTL */ + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_STDALIGN_H 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_STDBOOL_H 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_STDINT_H 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_STDLIB_H 1 + +/* Define if strerror_l is available in . */ +/* #undef _GLIBCXX_HAVE_STRERROR_L */ + +/* Define if strerror_r is available in . */ +#define _GLIBCXX_HAVE_STRERROR_R 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_STRINGS_H 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_STRING_H 1 + +/* Define to 1 if you have the `strtof' function. */ +#define _GLIBCXX_HAVE_STRTOF 1 + +/* Define to 1 if you have the `strtold' function. */ +/* #undef _GLIBCXX_HAVE_STRTOLD */ + +/* Define to 1 if `d_type' is a member of `struct dirent'. */ +/* #undef _GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE */ + +/* Define if strxfrm_l is available in . */ +/* #undef _GLIBCXX_HAVE_STRXFRM_L */ + +/* Define to 1 if the target runtime linker supports binding the same symbol + to different versions. */ +/* #undef _GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_FILIO_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_IOCTL_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_IPC_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_ISA_DEFS_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_MACHINE_H */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_SYS_PARAM_H 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_SYS_RESOURCE_H 1 + +/* Define to 1 if you have a suitable header file */ +/* #undef _GLIBCXX_HAVE_SYS_SDT_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_SEM_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_SOCKET_H */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_STATVFS_H */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_SYS_STAT_H 1 + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_SYSINFO_H */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_SYS_TIME_H 1 + +/* Define to 1 if you have the header file. */ +#define _GLIBCXX_HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_SYS_UIO_H */ + +/* Define if S_IFREG is available in . */ +/* #undef _GLIBCXX_HAVE_S_IFREG */ + +/* Define if S_ISREG is available in . */ +//#define _GLIBCXX_HAVE_S_ISREG 1 + +/* Define to 1 if you have the `tanf' function. */ +#define _GLIBCXX_HAVE_TANF 1 + +/* Define to 1 if you have the `tanhf' function. */ +#define _GLIBCXX_HAVE_TANHF 1 + +/* Define to 1 if you have the `tanhl' function. */ +/* #undef _GLIBCXX_HAVE_TANHL */ + +/* Define to 1 if you have the `tanl' function. */ +/* #undef _GLIBCXX_HAVE_TANL */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_TGMATH_H 1 + +/* Define to 1 if you have the `timespec_get' function. */ +/* #undef _GLIBCXX_HAVE_TIMESPEC_GET */ + +/* Define to 1 if the target supports thread-local storage. */ +/* #undef _GLIBCXX_HAVE_TLS */ + +/* Define to 1 if you have the header file. */ +/* #undef _GLIBCXX_HAVE_UCHAR_H */ + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_UNISTD_H 1 + +/* Defined if usleep exists. */ +//#define _GLIBCXX_HAVE_USLEEP 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_UTIME_H 1 + +/* Defined if vfwscanf exists. */ +//#define _GLIBCXX_HAVE_VFWSCANF 1 + +/* Defined if vswscanf exists. */ +//#define _GLIBCXX_HAVE_VSWSCANF 1 + +/* Defined if vwscanf exists. */ +//#define _GLIBCXX_HAVE_VWSCANF 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_WCHAR_H 1 + +/* Defined if wcstof exists. */ +//#define _GLIBCXX_HAVE_WCSTOF 1 + +/* Define to 1 if you have the header file. */ +//#define _GLIBCXX_HAVE_WCTYPE_H 1 + +/* Defined if Sleep exists. */ +/* #undef _GLIBCXX_HAVE_WIN32_SLEEP */ + +/* Define if writev is available in . */ +/* #undef _GLIBCXX_HAVE_WRITEV */ + +/* Define to 1 if you have the `_acosf' function. */ +/* #undef _GLIBCXX_HAVE__ACOSF */ + +/* Define to 1 if you have the `_acosl' function. */ +/* #undef _GLIBCXX_HAVE__ACOSL */ + +/* Define to 1 if you have the `_aligned_malloc' function. */ +/* #undef _GLIBCXX_HAVE__ALIGNED_MALLOC */ + +/* Define to 1 if you have the `_asinf' function. */ +/* #undef _GLIBCXX_HAVE__ASINF */ + +/* Define to 1 if you have the `_asinl' function. */ +/* #undef _GLIBCXX_HAVE__ASINL */ + +/* Define to 1 if you have the `_atan2f' function. */ +/* #undef _GLIBCXX_HAVE__ATAN2F */ + +/* Define to 1 if you have the `_atan2l' function. */ +/* #undef _GLIBCXX_HAVE__ATAN2L */ + +/* Define to 1 if you have the `_atanf' function. */ +/* #undef _GLIBCXX_HAVE__ATANF */ + +/* Define to 1 if you have the `_atanl' function. */ +/* #undef _GLIBCXX_HAVE__ATANL */ + +/* Define to 1 if you have the `_ceilf' function. */ +/* #undef _GLIBCXX_HAVE__CEILF */ + +/* Define to 1 if you have the `_ceill' function. */ +/* #undef _GLIBCXX_HAVE__CEILL */ + +/* Define to 1 if you have the `_cosf' function. */ +/* #undef _GLIBCXX_HAVE__COSF */ + +/* Define to 1 if you have the `_coshf' function. */ +/* #undef _GLIBCXX_HAVE__COSHF */ + +/* Define to 1 if you have the `_coshl' function. */ +/* #undef _GLIBCXX_HAVE__COSHL */ + +/* Define to 1 if you have the `_cosl' function. */ +/* #undef _GLIBCXX_HAVE__COSL */ + +/* Define to 1 if you have the `_expf' function. */ +/* #undef _GLIBCXX_HAVE__EXPF */ + +/* Define to 1 if you have the `_expl' function. */ +/* #undef _GLIBCXX_HAVE__EXPL */ + +/* Define to 1 if you have the `_fabsf' function. */ +/* #undef _GLIBCXX_HAVE__FABSF */ + +/* Define to 1 if you have the `_fabsl' function. */ +/* #undef _GLIBCXX_HAVE__FABSL */ + +/* Define to 1 if you have the `_finite' function. */ +/* #undef _GLIBCXX_HAVE__FINITE */ + +/* Define to 1 if you have the `_finitef' function. */ +/* #undef _GLIBCXX_HAVE__FINITEF */ + +/* Define to 1 if you have the `_finitel' function. */ +/* #undef _GLIBCXX_HAVE__FINITEL */ + +/* Define to 1 if you have the `_floorf' function. */ +/* #undef _GLIBCXX_HAVE__FLOORF */ + +/* Define to 1 if you have the `_floorl' function. */ +/* #undef _GLIBCXX_HAVE__FLOORL */ + +/* Define to 1 if you have the `_fmodf' function. */ +/* #undef _GLIBCXX_HAVE__FMODF */ + +/* Define to 1 if you have the `_fmodl' function. */ +/* #undef _GLIBCXX_HAVE__FMODL */ + +/* Define to 1 if you have the `_fpclass' function. */ +/* #undef _GLIBCXX_HAVE__FPCLASS */ + +/* Define to 1 if you have the `_frexpf' function. */ +/* #undef _GLIBCXX_HAVE__FREXPF */ + +/* Define to 1 if you have the `_frexpl' function. */ +/* #undef _GLIBCXX_HAVE__FREXPL */ + +/* Define to 1 if you have the `_hypot' function. */ +/* #undef _GLIBCXX_HAVE__HYPOT */ + +/* Define to 1 if you have the `_hypotf' function. */ +/* #undef _GLIBCXX_HAVE__HYPOTF */ + +/* Define to 1 if you have the `_hypotl' function. */ +/* #undef _GLIBCXX_HAVE__HYPOTL */ + +/* Define to 1 if you have the `_isinf' function. */ +/* #undef _GLIBCXX_HAVE__ISINF */ + +/* Define to 1 if you have the `_isinff' function. */ +/* #undef _GLIBCXX_HAVE__ISINFF */ + +/* Define to 1 if you have the `_isinfl' function. */ +/* #undef _GLIBCXX_HAVE__ISINFL */ + +/* Define to 1 if you have the `_isnan' function. */ +/* #undef _GLIBCXX_HAVE__ISNAN */ + +/* Define to 1 if you have the `_isnanf' function. */ +/* #undef _GLIBCXX_HAVE__ISNANF */ + +/* Define to 1 if you have the `_isnanl' function. */ +/* #undef _GLIBCXX_HAVE__ISNANL */ + +/* Define to 1 if you have the `_ldexpf' function. */ +/* #undef _GLIBCXX_HAVE__LDEXPF */ + +/* Define to 1 if you have the `_ldexpl' function. */ +/* #undef _GLIBCXX_HAVE__LDEXPL */ + +/* Define to 1 if you have the `_log10f' function. */ +/* #undef _GLIBCXX_HAVE__LOG10F */ + +/* Define to 1 if you have the `_log10l' function. */ +/* #undef _GLIBCXX_HAVE__LOG10L */ + +/* Define to 1 if you have the `_logf' function. */ +/* #undef _GLIBCXX_HAVE__LOGF */ + +/* Define to 1 if you have the `_logl' function. */ +/* #undef _GLIBCXX_HAVE__LOGL */ + +/* Define to 1 if you have the `_modf' function. */ +/* #undef _GLIBCXX_HAVE__MODF */ + +/* Define to 1 if you have the `_modff' function. */ +/* #undef _GLIBCXX_HAVE__MODFF */ + +/* Define to 1 if you have the `_modfl' function. */ +/* #undef _GLIBCXX_HAVE__MODFL */ + +/* Define to 1 if you have the `_powf' function. */ +/* #undef _GLIBCXX_HAVE__POWF */ + +/* Define to 1 if you have the `_powl' function. */ +/* #undef _GLIBCXX_HAVE__POWL */ + +/* Define to 1 if you have the `_qfpclass' function. */ +/* #undef _GLIBCXX_HAVE__QFPCLASS */ + +/* Define to 1 if you have the `_sincos' function. */ +/* #undef _GLIBCXX_HAVE__SINCOS */ + +/* Define to 1 if you have the `_sincosf' function. */ +/* #undef _GLIBCXX_HAVE__SINCOSF */ + +/* Define to 1 if you have the `_sincosl' function. */ +/* #undef _GLIBCXX_HAVE__SINCOSL */ + +/* Define to 1 if you have the `_sinf' function. */ +/* #undef _GLIBCXX_HAVE__SINF */ + +/* Define to 1 if you have the `_sinhf' function. */ +/* #undef _GLIBCXX_HAVE__SINHF */ + +/* Define to 1 if you have the `_sinhl' function. */ +/* #undef _GLIBCXX_HAVE__SINHL */ + +/* Define to 1 if you have the `_sinl' function. */ +/* #undef _GLIBCXX_HAVE__SINL */ + +/* Define to 1 if you have the `_sqrtf' function. */ +/* #undef _GLIBCXX_HAVE__SQRTF */ + +/* Define to 1 if you have the `_sqrtl' function. */ +/* #undef _GLIBCXX_HAVE__SQRTL */ + +/* Define to 1 if you have the `_tanf' function. */ +/* #undef _GLIBCXX_HAVE__TANF */ + +/* Define to 1 if you have the `_tanhf' function. */ +/* #undef _GLIBCXX_HAVE__TANHF */ + +/* Define to 1 if you have the `_tanhl' function. */ +/* #undef _GLIBCXX_HAVE__TANHL */ + +/* Define to 1 if you have the `_tanl' function. */ +/* #undef _GLIBCXX_HAVE__TANL */ + +/* Define to 1 if you have the `_wfopen' function. */ +/* #undef _GLIBCXX_HAVE__WFOPEN */ + +/* Define to 1 if you have the `__cxa_thread_atexit' function. */ +/* #undef _GLIBCXX_HAVE___CXA_THREAD_ATEXIT */ + +/* Define to 1 if you have the `__cxa_thread_atexit_impl' function. */ +/* #undef _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL */ + +/* Define as const if the declaration of iconv() needs const. */ +/* #undef _GLIBCXX_ICONV_CONST */ + +/* Define to the sub-directory in which libtool stores uninstalled libraries. + */ +#define LT_OBJDIR ".libs/" + +/* Name of package */ +/* #undef _GLIBCXX_PACKAGE */ + +/* Define to the address where bug reports for this package should be sent. */ +#define _GLIBCXX_PACKAGE_BUGREPORT "" + +/* Define to the full name of this package. */ +#define _GLIBCXX_PACKAGE_NAME "package-unused" + +/* Define to the full name and version of this package. */ +#define _GLIBCXX_PACKAGE_STRING "package-unused version-unused" + +/* Define to the one symbol short name of this package. */ +#define _GLIBCXX_PACKAGE_TARNAME "libstdc++" + +/* Define to the home page for this package. */ +#define _GLIBCXX_PACKAGE_URL "" + +/* Define to the version of this package. */ +#define _GLIBCXX_PACKAGE__GLIBCXX_VERSION "version-unused" + +/* The size of `char', as computed by sizeof. */ +/* #undef SIZEOF_CHAR */ + +/* The size of `int', as computed by sizeof. */ +/* #undef SIZEOF_INT */ + +/* The size of `long', as computed by sizeof. */ +/* #undef SIZEOF_LONG */ + +/* The size of `short', as computed by sizeof. */ +/* #undef SIZEOF_SHORT */ + +/* The size of `void *', as computed by sizeof. */ +/* #undef SIZEOF_VOID_P */ + +/* Define to 1 if you have the ANSI C header files. */ +#define STDC_HEADERS 1 + +/* Version number of package */ +/* #undef _GLIBCXX_VERSION */ + +/* Number of bits in a file offset, on hosts where this is settable. */ +/* #undef _GLIBCXX_FILE_OFFSET_BITS */ + +/* Define if C99 functions in should be used in for + C++11. Using compiler builtins for these functions requires corresponding + C99 library functions to be present. */ +/* #undef _GLIBCXX11_USE_C99_COMPLEX */ + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++11. */ +#define _GLIBCXX11_USE_C99_MATH 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++11. */ +#define _GLIBCXX11_USE_C99_STDIO 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++11. */ +#define _GLIBCXX11_USE_C99_STDLIB 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++11. */ +//#define _GLIBCXX11_USE_C99_WCHAR 1 + +/* Define if C99 functions in should be used in for + C++98. Using compiler builtins for these functions requires corresponding + C99 library functions to be present. */ +/* #undef _GLIBCXX98_USE_C99_COMPLEX */ + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++98. */ +#define _GLIBCXX98_USE_C99_MATH 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++98. */ +#define _GLIBCXX98_USE_C99_STDIO 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++98. */ +#define _GLIBCXX98_USE_C99_STDLIB 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std for C++98. */ +//#define _GLIBCXX98_USE_C99_WCHAR 1 + +/* Define if the compiler supports C++11 atomics. */ +/* #undef _GLIBCXX_ATOMIC_BUILTINS */ + +/* Define to use concept checking code from the boost libraries. */ +/* #undef _GLIBCXX_CONCEPT_CHECKS */ + +/* Define to 1 if a fully dynamic basic_string is wanted, 0 to disable, + undefined for platform defaults */ +#define _GLIBCXX_FULLY_DYNAMIC_STRING 0 + +/* Define if gthreads library is available. */ +/* #undef _GLIBCXX_HAS_GTHREADS */ + +/* Define to 1 if a full hosted library is built, or 0 if freestanding. */ +#define _GLIBCXX_HOSTED 1 + +/* Define if compatibility should be provided for -mlong-double-64. */ + +/* Define to the letter to which size_t is mangled. */ +#define _GLIBCXX_MANGLE_SIZE_T j + +/* Define if C99 llrint and llround functions are missing from . */ +#define _GLIBCXX_NO_C99_ROUNDING_FUNCS + +/* Define if ptrdiff_t is int. */ +#define _GLIBCXX_PTRDIFF_T_IS_INT 1 + +/* Define if using setrlimit to set resource limits during "make check" */ +/* #undef _GLIBCXX_RES_LIMITS */ + +/* Define if size_t is unsigned int. */ +#define _GLIBCXX_SIZE_T_IS_UINT 1 + +/* Define to the value of the EOF integer constant. */ +#define _GLIBCXX_STDIO_EOF -1 + +/* Define to the value of the SEEK_CUR integer constant. */ +#define _GLIBCXX_STDIO_SEEK_CUR 1 + +/* Define to the value of the SEEK_END integer constant. */ +#define _GLIBCXX_STDIO_SEEK_END 2 + +/* Define to use symbol versioning in the shared library. */ +/* #undef _GLIBCXX_SYMVER */ + +/* Define to use darwin versioning in the shared library. */ +/* #undef _GLIBCXX_SYMVER_DARWIN */ + +/* Define to use GNU versioning in the shared library. */ +/* #undef _GLIBCXX_SYMVER_GNU */ + +/* Define to use GNU namespace versioning in the shared library. */ +/* #undef _GLIBCXX_SYMVER_GNU_NAMESPACE */ + +/* Define to use Sun versioning in the shared library. */ +/* #undef _GLIBCXX_SYMVER_SUN */ + +/* Define if C11 functions in should be imported into namespace std + in . */ +/* #undef _GLIBCXX_USE_C11_UCHAR_CXX11 */ + +/* Define if C99 functions or macros from , , , + , and can be used or exposed. */ +/* #undef _GLIBCXX_USE_C99 */ + +/* Define if C99 functions in should be used in . + Using compiler builtins for these functions requires corresponding C99 + library functions to be present. */ +/* #undef _GLIBCXX_USE_C99_COMPLEX_TR1 */ + +/* Define if C99 functions in should be imported in in + namespace std::tr1. */ +#define _GLIBCXX_USE_C99_CTYPE_TR1 1 + +/* Define if C99 functions in should be imported in in + namespace std::tr1. */ +/* #undef _GLIBCXX_USE_C99_FENV_TR1 */ + +/* Define if C99 functions in should be imported in + in namespace std::tr1. */ +#define _GLIBCXX_USE_C99_INTTYPES_TR1 1 + +/* Define if wchar_t C99 functions in should be imported in + in namespace std::tr1. */ +#define _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1 1 + +/* Define if C99 functions or macros in should be imported in + in namespace std::tr1. */ +#define _GLIBCXX_USE_C99_MATH_TR1 1 + +/* Define if C99 types in should be imported in in + namespace std::tr1. */ +#define _GLIBCXX_USE_C99_STDINT_TR1 1 + +/* Defined if clock_gettime syscall has monotonic and realtime clock support. + */ +/* #undef _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL */ + +/* Defined if clock_gettime has monotonic clock support. */ +/* #undef _GLIBCXX_USE_CLOCK_MONOTONIC */ + +/* Defined if clock_gettime has realtime clock support. */ +/* #undef _GLIBCXX_USE_CLOCK_REALTIME */ + +/* Define if ISO/IEC TR 24733 decimal floating point types are supported on + this host. */ +/* #undef _GLIBCXX_USE_DECIMAL_FLOAT */ + +/* Define if /dev/random and /dev/urandom are available for + std::random_device. */ +/* #undef _GLIBCXX_USE_DEV_RANDOM */ + +/* Define if fchmod is available in . */ +//#define _GLIBCXX_USE_FCHMOD 1 + +/* Define if fchmodat is available in . */ +//#define _GLIBCXX_USE_FCHMODAT 1 + + +/* Defined if gettimeofday is available. */ +//#define _GLIBCXX_USE_GETTIMEOFDAY 1 + +/* Define if get_nprocs is available in . */ +/* #undef _GLIBCXX_USE_GET_NPROCS */ + +/* Define if __int128 is supported on this host. */ +/* #undef _GLIBCXX_USE_INT128 */ + +/* Define if LFS support is available. */ +/* #undef _GLIBCXX_USE_LFS */ + +/* Define if code specialized for long long should be used. */ +#define _GLIBCXX_USE_LONG_LONG 1 + +/* Define if lstat is available in . */ +/* #undef _GLIBCXX_USE_LSTAT */ + +/* Defined if nanosleep is available. */ +/* #undef _GLIBCXX_USE_NANOSLEEP */ + +/* Define if NLS translations are to be used. */ +/* #undef _GLIBCXX_USE_NLS */ + +/* Define if pthreads_num_processors_np is available in . */ +/* #undef _GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP */ + +/* Define if pthread_cond_clockwait is available in . */ +/* #undef _GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT */ + +/* Define if pthread_mutex_clocklock is available in . */ +/* #undef _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK */ + +/* Define if pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock are + available in . */ +/* #undef _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK */ + +/* Define if POSIX read/write locks are available in . */ +/* #undef _GLIBCXX_USE_PTHREAD_RWLOCK_T */ + +/* Define if /dev/random and /dev/urandom are available for the random_device + of TR1 (Chapter 5.1). */ +/* #undef _GLIBCXX_USE_RANDOM_TR1 */ + +/* Define if usable realpath is available in . */ +/* #undef _GLIBCXX_USE_REALPATH */ + +/* Defined if sched_yield is available. */ +/* #undef _GLIBCXX_USE_SCHED_YIELD */ + +/* Define if _SC_NPROCESSORS_ONLN is available in . */ +//#define _GLIBCXX_USE_SC_NPROCESSORS_ONLN 1 + +/* Define if _SC_NPROC_ONLN is available in . */ +/* #undef _GLIBCXX_USE_SC_NPROC_ONLN */ + +/* Define if sendfile is available in . */ +/* #undef _GLIBCXX_USE_SENDFILE */ + +/* Define if struct stat has timespec members. */ +/* #undef _GLIBCXX_USE_ST_MTIM */ + +/* Define if sysctl(), CTL_HW and HW_NCPU are available in . */ +/* #undef _GLIBCXX_USE_SYSCTL_HW_NCPU */ + +/* Define if obsolescent tmpnam is available in . */ +#define _GLIBCXX_USE_TMPNAM 1 + +/* Define if utimensat and UTIME_OMIT are available in and + AT_FDCWD in . */ +/* #undef _GLIBCXX_USE_UTIMENSAT */ + +/* Define if code specialized for wchar_t should be used. */ +//#define _GLIBCXX_USE_WCHAR_T 1 + +/* Define to 1 if a verbose library is built, or 0 otherwise. */ +#define _GLIBCXX_VERBOSE 1 + +/* Defined if as can handle rdrand. */ +/* #undef _GLIBCXX_X86_RDRAND */ + +/* Defined if as can handle rdseed. */ +/* #undef _GLIBCXX_X86_RDSEED */ + +/* Define to 1 if mutex_timedlock is available. */ +//#define _GTHREAD_USE_MUTEX_TIMEDLOCK 1 + +/* Define for large files, on AIX-style hosts. */ +/* #undef _GLIBCXX_LARGE_FILES */ + +/* Define if all C++11 floating point overloads are available in . */ +#if __cplusplus >= 201103L +/* #undef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP */ +#endif + +/* Define if all C++11 integral type overloads are available in . */ +#if __cplusplus >= 201103L +/* #undef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT */ +#endif + +#if defined (_GLIBCXX_HAVE__ACOSF) && ! defined (_GLIBCXX_HAVE_ACOSF) +# define _GLIBCXX_HAVE_ACOSF 1 +# define acosf _acosf +#endif + +#if defined (_GLIBCXX_HAVE__ACOSL) && ! defined (_GLIBCXX_HAVE_ACOSL) +# define _GLIBCXX_HAVE_ACOSL 1 +# define acosl _acosl +#endif + +#if defined (_GLIBCXX_HAVE__ASINF) && ! defined (_GLIBCXX_HAVE_ASINF) +# define _GLIBCXX_HAVE_ASINF 1 +# define asinf _asinf +#endif + +#if defined (_GLIBCXX_HAVE__ASINL) && ! defined (_GLIBCXX_HAVE_ASINL) +# define _GLIBCXX_HAVE_ASINL 1 +# define asinl _asinl +#endif + +#if defined (_GLIBCXX_HAVE__ATAN2F) && ! defined (_GLIBCXX_HAVE_ATAN2F) +# define _GLIBCXX_HAVE_ATAN2F 1 +# define atan2f _atan2f +#endif + +#if defined (_GLIBCXX_HAVE__ATAN2L) && ! defined (_GLIBCXX_HAVE_ATAN2L) +# define _GLIBCXX_HAVE_ATAN2L 1 +# define atan2l _atan2l +#endif + +#if defined (_GLIBCXX_HAVE__ATANF) && ! defined (_GLIBCXX_HAVE_ATANF) +# define _GLIBCXX_HAVE_ATANF 1 +# define atanf _atanf +#endif + +#if defined (_GLIBCXX_HAVE__ATANL) && ! defined (_GLIBCXX_HAVE_ATANL) +# define _GLIBCXX_HAVE_ATANL 1 +# define atanl _atanl +#endif + +#if defined (_GLIBCXX_HAVE__CEILF) && ! defined (_GLIBCXX_HAVE_CEILF) +# define _GLIBCXX_HAVE_CEILF 1 +# define ceilf _ceilf +#endif + +#if defined (_GLIBCXX_HAVE__CEILL) && ! defined (_GLIBCXX_HAVE_CEILL) +# define _GLIBCXX_HAVE_CEILL 1 +# define ceill _ceill +#endif + +#if defined (_GLIBCXX_HAVE__COSF) && ! defined (_GLIBCXX_HAVE_COSF) +# define _GLIBCXX_HAVE_COSF 1 +# define cosf _cosf +#endif + +#if defined (_GLIBCXX_HAVE__COSHF) && ! defined (_GLIBCXX_HAVE_COSHF) +# define _GLIBCXX_HAVE_COSHF 1 +# define coshf _coshf +#endif + +#if defined (_GLIBCXX_HAVE__COSHL) && ! defined (_GLIBCXX_HAVE_COSHL) +# define _GLIBCXX_HAVE_COSHL 1 +# define coshl _coshl +#endif + +#if defined (_GLIBCXX_HAVE__COSL) && ! defined (_GLIBCXX_HAVE_COSL) +# define _GLIBCXX_HAVE_COSL 1 +# define cosl _cosl +#endif + +#if defined (_GLIBCXX_HAVE__EXPF) && ! defined (_GLIBCXX_HAVE_EXPF) +# define _GLIBCXX_HAVE_EXPF 1 +# define expf _expf +#endif + +#if defined (_GLIBCXX_HAVE__EXPL) && ! defined (_GLIBCXX_HAVE_EXPL) +# define _GLIBCXX_HAVE_EXPL 1 +# define expl _expl +#endif + +#if defined (_GLIBCXX_HAVE__FABSF) && ! defined (_GLIBCXX_HAVE_FABSF) +# define _GLIBCXX_HAVE_FABSF 1 +# define fabsf _fabsf +#endif + +#if defined (_GLIBCXX_HAVE__FABSL) && ! defined (_GLIBCXX_HAVE_FABSL) +# define _GLIBCXX_HAVE_FABSL 1 +# define fabsl _fabsl +#endif + +#if defined (_GLIBCXX_HAVE__FINITE) && ! defined (_GLIBCXX_HAVE_FINITE) +# define _GLIBCXX_HAVE_FINITE 1 +# define finite _finite +#endif + +#if defined (_GLIBCXX_HAVE__FINITEF) && ! defined (_GLIBCXX_HAVE_FINITEF) +# define _GLIBCXX_HAVE_FINITEF 1 +# define finitef _finitef +#endif + +#if defined (_GLIBCXX_HAVE__FINITEL) && ! defined (_GLIBCXX_HAVE_FINITEL) +# define _GLIBCXX_HAVE_FINITEL 1 +# define finitel _finitel +#endif + +#if defined (_GLIBCXX_HAVE__FLOORF) && ! defined (_GLIBCXX_HAVE_FLOORF) +# define _GLIBCXX_HAVE_FLOORF 1 +# define floorf _floorf +#endif + +#if defined (_GLIBCXX_HAVE__FLOORL) && ! defined (_GLIBCXX_HAVE_FLOORL) +# define _GLIBCXX_HAVE_FLOORL 1 +# define floorl _floorl +#endif + +#if defined (_GLIBCXX_HAVE__FMODF) && ! defined (_GLIBCXX_HAVE_FMODF) +# define _GLIBCXX_HAVE_FMODF 1 +# define fmodf _fmodf +#endif + +#if defined (_GLIBCXX_HAVE__FMODL) && ! defined (_GLIBCXX_HAVE_FMODL) +# define _GLIBCXX_HAVE_FMODL 1 +# define fmodl _fmodl +#endif + +#if defined (_GLIBCXX_HAVE__FPCLASS) && ! defined (_GLIBCXX_HAVE_FPCLASS) +# define _GLIBCXX_HAVE_FPCLASS 1 +# define fpclass _fpclass +#endif + +#if defined (_GLIBCXX_HAVE__FREXPF) && ! defined (_GLIBCXX_HAVE_FREXPF) +# define _GLIBCXX_HAVE_FREXPF 1 +# define frexpf _frexpf +#endif + +#if defined (_GLIBCXX_HAVE__FREXPL) && ! defined (_GLIBCXX_HAVE_FREXPL) +# define _GLIBCXX_HAVE_FREXPL 1 +# define frexpl _frexpl +#endif + +#if defined (_GLIBCXX_HAVE__HYPOT) && ! defined (_GLIBCXX_HAVE_HYPOT) +# define _GLIBCXX_HAVE_HYPOT 1 +# define hypot _hypot +#endif + +#if defined (_GLIBCXX_HAVE__HYPOTF) && ! defined (_GLIBCXX_HAVE_HYPOTF) +# define _GLIBCXX_HAVE_HYPOTF 1 +# define hypotf _hypotf +#endif + +#if defined (_GLIBCXX_HAVE__HYPOTL) && ! defined (_GLIBCXX_HAVE_HYPOTL) +# define _GLIBCXX_HAVE_HYPOTL 1 +# define hypotl _hypotl +#endif + +#if defined (_GLIBCXX_HAVE__ISINF) && ! defined (_GLIBCXX_HAVE_ISINF) +# define _GLIBCXX_HAVE_ISINF 1 +# define isinf _isinf +#endif + +#if defined (_GLIBCXX_HAVE__ISINFF) && ! defined (_GLIBCXX_HAVE_ISINFF) +# define _GLIBCXX_HAVE_ISINFF 1 +# define isinff _isinff +#endif + +#if defined (_GLIBCXX_HAVE__ISINFL) && ! defined (_GLIBCXX_HAVE_ISINFL) +# define _GLIBCXX_HAVE_ISINFL 1 +# define isinfl _isinfl +#endif + +#if defined (_GLIBCXX_HAVE__ISNAN) && ! defined (_GLIBCXX_HAVE_ISNAN) +# define _GLIBCXX_HAVE_ISNAN 1 +# define isnan _isnan +#endif + +#if defined (_GLIBCXX_HAVE__ISNANF) && ! defined (_GLIBCXX_HAVE_ISNANF) +# define _GLIBCXX_HAVE_ISNANF 1 +# define isnanf _isnanf +#endif + +#if defined (_GLIBCXX_HAVE__ISNANL) && ! defined (_GLIBCXX_HAVE_ISNANL) +# define _GLIBCXX_HAVE_ISNANL 1 +# define isnanl _isnanl +#endif + +#if defined (_GLIBCXX_HAVE__LDEXPF) && ! defined (_GLIBCXX_HAVE_LDEXPF) +# define _GLIBCXX_HAVE_LDEXPF 1 +# define ldexpf _ldexpf +#endif + +#if defined (_GLIBCXX_HAVE__LDEXPL) && ! defined (_GLIBCXX_HAVE_LDEXPL) +# define _GLIBCXX_HAVE_LDEXPL 1 +# define ldexpl _ldexpl +#endif + +#if defined (_GLIBCXX_HAVE__LOG10F) && ! defined (_GLIBCXX_HAVE_LOG10F) +# define _GLIBCXX_HAVE_LOG10F 1 +# define log10f _log10f +#endif + +#if defined (_GLIBCXX_HAVE__LOG10L) && ! defined (_GLIBCXX_HAVE_LOG10L) +# define _GLIBCXX_HAVE_LOG10L 1 +# define log10l _log10l +#endif + +#if defined (_GLIBCXX_HAVE__LOGF) && ! defined (_GLIBCXX_HAVE_LOGF) +# define _GLIBCXX_HAVE_LOGF 1 +# define logf _logf +#endif + +#if defined (_GLIBCXX_HAVE__LOGL) && ! defined (_GLIBCXX_HAVE_LOGL) +# define _GLIBCXX_HAVE_LOGL 1 +# define logl _logl +#endif + +#if defined (_GLIBCXX_HAVE__MODF) && ! defined (_GLIBCXX_HAVE_MODF) +# define _GLIBCXX_HAVE_MODF 1 +# define modf _modf +#endif + +#if defined (_GLIBCXX_HAVE__MODFF) && ! defined (_GLIBCXX_HAVE_MODFF) +# define _GLIBCXX_HAVE_MODFF 1 +# define modff _modff +#endif + +#if defined (_GLIBCXX_HAVE__MODFL) && ! defined (_GLIBCXX_HAVE_MODFL) +# define _GLIBCXX_HAVE_MODFL 1 +# define modfl _modfl +#endif + +#if defined (_GLIBCXX_HAVE__POWF) && ! defined (_GLIBCXX_HAVE_POWF) +# define _GLIBCXX_HAVE_POWF 1 +# define powf _powf +#endif + +#if defined (_GLIBCXX_HAVE__POWL) && ! defined (_GLIBCXX_HAVE_POWL) +# define _GLIBCXX_HAVE_POWL 1 +# define powl _powl +#endif + +#if defined (_GLIBCXX_HAVE__QFPCLASS) && ! defined (_GLIBCXX_HAVE_QFPCLASS) +# define _GLIBCXX_HAVE_QFPCLASS 1 +# define qfpclass _qfpclass +#endif + +#if defined (_GLIBCXX_HAVE__SINCOS) && ! defined (_GLIBCXX_HAVE_SINCOS) +# define _GLIBCXX_HAVE_SINCOS 1 +# define sincos _sincos +#endif + +#if defined (_GLIBCXX_HAVE__SINCOSF) && ! defined (_GLIBCXX_HAVE_SINCOSF) +# define _GLIBCXX_HAVE_SINCOSF 1 +# define sincosf _sincosf +#endif + +#if defined (_GLIBCXX_HAVE__SINCOSL) && ! defined (_GLIBCXX_HAVE_SINCOSL) +# define _GLIBCXX_HAVE_SINCOSL 1 +# define sincosl _sincosl +#endif + +#if defined (_GLIBCXX_HAVE__SINF) && ! defined (_GLIBCXX_HAVE_SINF) +# define _GLIBCXX_HAVE_SINF 1 +# define sinf _sinf +#endif + +#if defined (_GLIBCXX_HAVE__SINHF) && ! defined (_GLIBCXX_HAVE_SINHF) +# define _GLIBCXX_HAVE_SINHF 1 +# define sinhf _sinhf +#endif + +#if defined (_GLIBCXX_HAVE__SINHL) && ! defined (_GLIBCXX_HAVE_SINHL) +# define _GLIBCXX_HAVE_SINHL 1 +# define sinhl _sinhl +#endif + +#if defined (_GLIBCXX_HAVE__SINL) && ! defined (_GLIBCXX_HAVE_SINL) +# define _GLIBCXX_HAVE_SINL 1 +# define sinl _sinl +#endif + +#if defined (_GLIBCXX_HAVE__SQRTF) && ! defined (_GLIBCXX_HAVE_SQRTF) +# define _GLIBCXX_HAVE_SQRTF 1 +# define sqrtf _sqrtf +#endif + +#if defined (_GLIBCXX_HAVE__SQRTL) && ! defined (_GLIBCXX_HAVE_SQRTL) +# define _GLIBCXX_HAVE_SQRTL 1 +# define sqrtl _sqrtl +#endif + +#if defined (_GLIBCXX_HAVE__STRTOF) && ! defined (_GLIBCXX_HAVE_STRTOF) +# define _GLIBCXX_HAVE_STRTOF 1 +# define strtof _strtof +#endif + +#if defined (_GLIBCXX_HAVE__STRTOLD) && ! defined (_GLIBCXX_HAVE_STRTOLD) +# define _GLIBCXX_HAVE_STRTOLD 1 +# define strtold _strtold +#endif + +#if defined (_GLIBCXX_HAVE__TANF) && ! defined (_GLIBCXX_HAVE_TANF) +# define _GLIBCXX_HAVE_TANF 1 +# define tanf _tanf +#endif + +#if defined (_GLIBCXX_HAVE__TANHF) && ! defined (_GLIBCXX_HAVE_TANHF) +# define _GLIBCXX_HAVE_TANHF 1 +# define tanhf _tanhf +#endif + +#if defined (_GLIBCXX_HAVE__TANHL) && ! defined (_GLIBCXX_HAVE_TANHL) +# define _GLIBCXX_HAVE_TANHL 1 +# define tanhl _tanhl +#endif + +#if defined (_GLIBCXX_HAVE__TANL) && ! defined (_GLIBCXX_HAVE_TANL) +# define _GLIBCXX_HAVE_TANL 1 +# define tanl _tanl +#endif + +#endif // _GLIBCXX_CXX_CONFIG_H diff --git a/resources/sources/avr-libstdcpp/include/bits/char_traits.h b/resources/sources/avr-libstdcpp/include/bits/char_traits.h new file mode 100644 index 000000000..c6da184e4 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/char_traits.h @@ -0,0 +1,943 @@ +// Character Traits for use by standard string and iostream -*- C++ -*- + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/char_traits.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{string} + */ + +// +// ISO C++ 14882: 21 Strings library +// + +#ifndef _CHAR_TRAITS_H +#define _CHAR_TRAITS_H 1 + +#pragma GCC system_header + +#include // std::copy, std::fill_n +#include // For streampos +#include // For WEOF, wmemmove, wmemset, etc. +#if __cplusplus > 201703L +# include +#endif + +#ifndef _GLIBCXX_ALWAYS_INLINE +# define _GLIBCXX_ALWAYS_INLINE inline __attribute__((__always_inline__)) +#endif + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief Mapping from character type to associated types. + * + * @note This is an implementation class for the generic version + * of char_traits. It defines int_type, off_type, pos_type, and + * state_type. By default these are unsigned long, streamoff, + * streampos, and mbstate_t. Users who need a different set of + * types, but who don't need to change the definitions of any function + * defined in char_traits, can specialize __gnu_cxx::_Char_types + * while leaving __gnu_cxx::char_traits alone. */ + template + struct _Char_types + { + typedef unsigned long int_type; + typedef std::streampos pos_type; + typedef std::streamoff off_type; + typedef std::mbstate_t state_type; + }; + + + /** + * @brief Base class used to implement std::char_traits. + * + * @note For any given actual character type, this definition is + * probably wrong. (Most of the member functions are likely to be + * right, but the int_type and state_type typedefs, and the eof() + * member function, are likely to be wrong.) The reason this class + * exists is so users can specialize it. Classes in namespace std + * may not be specialized for fundamental types, but classes in + * namespace __gnu_cxx may be. + * + * See https://gcc.gnu.org/onlinedocs/libstdc++/manual/strings.html#strings.string.character_types + * for advice on how to make use of this class for @a unusual character + * types. Also, check out include/ext/pod_char_traits.h. + */ + template + struct char_traits + { + typedef _CharT char_type; + typedef typename _Char_types<_CharT>::int_type int_type; + typedef typename _Char_types<_CharT>::pos_type pos_type; + typedef typename _Char_types<_CharT>::off_type off_type; + typedef typename _Char_types<_CharT>::state_type state_type; +#if __cpp_lib_three_way_comparison + using comparison_category = std::strong_ordering; +#endif + + static _GLIBCXX14_CONSTEXPR void + assign(char_type& __c1, const char_type& __c2) + { __c1 = __c2; } + + static _GLIBCXX_CONSTEXPR bool + eq(const char_type& __c1, const char_type& __c2) + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR bool + lt(const char_type& __c1, const char_type& __c2) + { return __c1 < __c2; } + + static _GLIBCXX14_CONSTEXPR int + compare(const char_type* __s1, const char_type* __s2, std::size_t __n); + + static _GLIBCXX14_CONSTEXPR std::size_t + length(const char_type* __s); + + static _GLIBCXX14_CONSTEXPR const char_type* + find(const char_type* __s, std::size_t __n, const char_type& __a); + + static _GLIBCXX20_CONSTEXPR char_type* + move(char_type* __s1, const char_type* __s2, std::size_t __n); + + static _GLIBCXX20_CONSTEXPR char_type* + copy(char_type* __s1, const char_type* __s2, std::size_t __n); + + static _GLIBCXX20_CONSTEXPR char_type* + assign(char_type* __s, std::size_t __n, char_type __a); + + static _GLIBCXX_CONSTEXPR char_type + to_char_type(const int_type& __c) + { return static_cast(__c); } + + static _GLIBCXX_CONSTEXPR int_type + to_int_type(const char_type& __c) + { return static_cast(__c); } + + static _GLIBCXX_CONSTEXPR bool + eq_int_type(const int_type& __c1, const int_type& __c2) + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR int_type + eof() + { return static_cast(_GLIBCXX_STDIO_EOF); } + + static _GLIBCXX_CONSTEXPR int_type + not_eof(const int_type& __c) + { return !eq_int_type(__c, eof()) ? __c : to_int_type(char_type()); } + }; + + template + _GLIBCXX14_CONSTEXPR int + char_traits<_CharT>:: + compare(const char_type* __s1, const char_type* __s2, std::size_t __n) + { + for (std::size_t __i = 0; __i < __n; ++__i) + if (lt(__s1[__i], __s2[__i])) + return -1; + else if (lt(__s2[__i], __s1[__i])) + return 1; + return 0; + } + + template + _GLIBCXX14_CONSTEXPR std::size_t + char_traits<_CharT>:: + length(const char_type* __p) + { + std::size_t __i = 0; + while (!eq(__p[__i], char_type())) + ++__i; + return __i; + } + + template + _GLIBCXX14_CONSTEXPR const typename char_traits<_CharT>::char_type* + char_traits<_CharT>:: + find(const char_type* __s, std::size_t __n, const char_type& __a) + { + for (std::size_t __i = 0; __i < __n; ++__i) + if (eq(__s[__i], __a)) + return __s + __i; + return 0; + } + + template + _GLIBCXX20_CONSTEXPR + typename char_traits<_CharT>::char_type* + char_traits<_CharT>:: + move(char_type* __s1, const char_type* __s2, std::size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + { + if (__s1 > __s2 && __s1 < __s2 + __n) + std::copy_backward(__s2, __s2 + __n, __s1); + else + std::copy(__s2, __s2 + __n, __s1); + return __s1; + } +#endif + return static_cast<_CharT*>(__builtin_memmove(__s1, __s2, + __n * sizeof(char_type))); + } + + template + _GLIBCXX20_CONSTEXPR + typename char_traits<_CharT>::char_type* + char_traits<_CharT>:: + copy(char_type* __s1, const char_type* __s2, std::size_t __n) + { + // NB: Inline std::copy so no recursive dependencies. + std::copy(__s2, __s2 + __n, __s1); + return __s1; + } + + template + _GLIBCXX20_CONSTEXPR + typename char_traits<_CharT>::char_type* + char_traits<_CharT>:: + assign(char_type* __s, std::size_t __n, char_type __a) + { + // NB: Inline std::fill_n so no recursive dependencies. + std::fill_n(__s, __n, __a); + return __s; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus >= 201703L +#define __cpp_lib_constexpr_char_traits 201611 + + /** + * @brief Determine whether the characters of a NULL-terminated + * string are known at compile time. + * @param __s The string. + * + * Assumes that _CharT is a built-in character type. + */ + template + static _GLIBCXX_ALWAYS_INLINE constexpr bool + __constant_string_p(const _CharT* __s) + { +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + (void) __s; + // In constexpr contexts all strings should be constant. + return __builtin_is_constant_evaluated(); +#else + while (__builtin_constant_p(*__s) && *__s) + __s++; + return __builtin_constant_p(*__s); +#endif + } + + /** + * @brief Determine whether the characters of a character array are + * known at compile time. + * @param __a The character array. + * @param __n Number of characters. + * + * Assumes that _CharT is a built-in character type. + */ + template + static _GLIBCXX_ALWAYS_INLINE constexpr bool + __constant_char_array_p(const _CharT* __a, size_t __n) + { +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + (void) __a; + (void) __n; + // In constexpr contexts all character arrays should be constant. + return __builtin_is_constant_evaluated(); +#else + size_t __i = 0; + while (__i < __n && __builtin_constant_p(__a[__i])) + __i++; + return __i == __n; +#endif + } +#endif + + // 21.1 + /** + * @brief Basis for explicit traits specializations. + * + * @note For any given actual character type, this definition is + * probably wrong. Since this is just a thin wrapper around + * __gnu_cxx::char_traits, it is possible to achieve a more + * appropriate definition by specializing __gnu_cxx::char_traits. + * + * See https://gcc.gnu.org/onlinedocs/libstdc++/manual/strings.html#strings.string.character_types + * for advice on how to make use of this class for @a unusual character + * types. Also, check out include/ext/pod_char_traits.h. + */ + template + struct char_traits : public __gnu_cxx::char_traits<_CharT> + { }; + + + /// 21.1.3.1 char_traits specializations + template<> + struct char_traits + { + typedef char char_type; + typedef int int_type; + typedef streampos pos_type; + typedef streamoff off_type; + typedef mbstate_t state_type; +#if __cpp_lib_three_way_comparison + using comparison_category = strong_ordering; +#endif + + static _GLIBCXX17_CONSTEXPR void + assign(char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { __c1 = __c2; } + + static _GLIBCXX_CONSTEXPR bool + eq(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR bool + lt(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { + // LWG 467. + return (static_cast(__c1) + < static_cast(__c2)); + } + + static _GLIBCXX17_CONSTEXPR int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return 0; +#if __cplusplus >= 201703L + if (__builtin_constant_p(__n) + && __constant_char_array_p(__s1, __n) + && __constant_char_array_p(__s2, __n)) + return __gnu_cxx::char_traits::compare(__s1, __s2, __n); +#endif + return __builtin_memcmp(__s1, __s2, __n); + } + + static _GLIBCXX17_CONSTEXPR size_t + length(const char_type* __s) + { +#if __cplusplus >= 201703L + if (__constant_string_p(__s)) + return __gnu_cxx::char_traits::length(__s); +#endif + return __builtin_strlen(__s); + } + + static _GLIBCXX17_CONSTEXPR const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + if (__n == 0) + return 0; +#if __cplusplus >= 201703L + if (__builtin_constant_p(__n) + && __builtin_constant_p(__a) + && __constant_char_array_p(__s, __n)) + return __gnu_cxx::char_traits::find(__s, __n, __a); +#endif + return static_cast(__builtin_memchr(__s, __a, __n)); + } + + static _GLIBCXX20_CONSTEXPR char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::move(__s1, __s2, __n); +#endif + return static_cast(__builtin_memmove(__s1, __s2, __n)); + } + + static _GLIBCXX20_CONSTEXPR char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::copy(__s1, __s2, __n); +#endif + return static_cast(__builtin_memcpy(__s1, __s2, __n)); + } + + static _GLIBCXX20_CONSTEXPR char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + if (__n == 0) + return __s; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::assign(__s, __n, __a); +#endif + return static_cast(__builtin_memset(__s, __a, __n)); + } + + static _GLIBCXX_CONSTEXPR char_type + to_char_type(const int_type& __c) _GLIBCXX_NOEXCEPT + { return static_cast(__c); } + + // To keep both the byte 0xff and the eof symbol 0xffffffff + // from ending up as 0xffffffff. + static _GLIBCXX_CONSTEXPR int_type + to_int_type(const char_type& __c) _GLIBCXX_NOEXCEPT + { return static_cast(static_cast(__c)); } + + static _GLIBCXX_CONSTEXPR bool + eq_int_type(const int_type& __c1, const int_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR int_type + eof() _GLIBCXX_NOEXCEPT + { return static_cast(_GLIBCXX_STDIO_EOF); } + + static _GLIBCXX_CONSTEXPR int_type + not_eof(const int_type& __c) _GLIBCXX_NOEXCEPT + { return (__c == eof()) ? 0 : __c; } + }; + + +#ifdef _GLIBCXX_USE_WCHAR_T + /// 21.1.3.2 char_traits specializations + template<> + struct char_traits + { + typedef wchar_t char_type; + typedef wint_t int_type; + typedef streamoff off_type; + typedef wstreampos pos_type; + typedef mbstate_t state_type; +#if __cpp_lib_three_way_comparison + using comparison_category = strong_ordering; +#endif + + static _GLIBCXX17_CONSTEXPR void + assign(char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { __c1 = __c2; } + + static _GLIBCXX_CONSTEXPR bool + eq(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR bool + lt(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 < __c2; } + + static _GLIBCXX17_CONSTEXPR int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return 0; +#if __cplusplus >= 201703L + if (__builtin_constant_p(__n) + && __constant_char_array_p(__s1, __n) + && __constant_char_array_p(__s2, __n)) + return __gnu_cxx::char_traits::compare(__s1, __s2, __n); +#endif + return wmemcmp(__s1, __s2, __n); + } + + static _GLIBCXX17_CONSTEXPR size_t + length(const char_type* __s) + { +#if __cplusplus >= 201703L + if (__constant_string_p(__s)) + return __gnu_cxx::char_traits::length(__s); +#endif + return wcslen(__s); + } + + static _GLIBCXX17_CONSTEXPR const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + if (__n == 0) + return 0; +#if __cplusplus >= 201703L + if (__builtin_constant_p(__n) + && __builtin_constant_p(__a) + && __constant_char_array_p(__s, __n)) + return __gnu_cxx::char_traits::find(__s, __n, __a); +#endif + return wmemchr(__s, __a, __n); + } + + static _GLIBCXX20_CONSTEXPR char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::move(__s1, __s2, __n); +#endif + return wmemmove(__s1, __s2, __n); + } + + static _GLIBCXX20_CONSTEXPR char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::copy(__s1, __s2, __n); +#endif + return wmemcpy(__s1, __s2, __n); + } + + static _GLIBCXX20_CONSTEXPR char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + if (__n == 0) + return __s; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::assign(__s, __n, __a); +#endif + return wmemset(__s, __a, __n); + } + + static _GLIBCXX_CONSTEXPR char_type + to_char_type(const int_type& __c) _GLIBCXX_NOEXCEPT + { return char_type(__c); } + + static _GLIBCXX_CONSTEXPR int_type + to_int_type(const char_type& __c) _GLIBCXX_NOEXCEPT + { return int_type(__c); } + + static _GLIBCXX_CONSTEXPR bool + eq_int_type(const int_type& __c1, const int_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR int_type + eof() _GLIBCXX_NOEXCEPT + { return static_cast(WEOF); } + + static _GLIBCXX_CONSTEXPR int_type + not_eof(const int_type& __c) _GLIBCXX_NOEXCEPT + { return eq_int_type(__c, eof()) ? 0 : __c; } + }; +#endif //_GLIBCXX_USE_WCHAR_T + +#ifdef _GLIBCXX_USE_CHAR8_T + template<> + struct char_traits + { + typedef char8_t char_type; + typedef unsigned int int_type; + typedef u8streampos pos_type; + typedef streamoff off_type; + typedef mbstate_t state_type; +#if __cpp_lib_three_way_comparison + using comparison_category = strong_ordering; +#endif + + static _GLIBCXX17_CONSTEXPR void + assign(char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { __c1 = __c2; } + + static _GLIBCXX_CONSTEXPR bool + eq(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR bool + lt(const char_type& __c1, const char_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 < __c2; } + + static _GLIBCXX17_CONSTEXPR int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return 0; +#if __cplusplus > 201402 + if (__builtin_constant_p(__n) + && __constant_char_array_p(__s1, __n) + && __constant_char_array_p(__s2, __n)) + return __gnu_cxx::char_traits::compare(__s1, __s2, __n); +#endif + return __builtin_memcmp(__s1, __s2, __n); + } + + static _GLIBCXX17_CONSTEXPR size_t + length(const char_type* __s) + { +#if __cplusplus > 201402 + if (__constant_string_p(__s)) + return __gnu_cxx::char_traits::length(__s); +#endif + size_t __i = 0; + while (!eq(__s[__i], char_type())) + ++__i; + return __i; + } + + static _GLIBCXX17_CONSTEXPR const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + if (__n == 0) + return 0; +#if __cplusplus > 201402 + if (__builtin_constant_p(__n) + && __builtin_constant_p(__a) + && __constant_char_array_p(__s, __n)) + return __gnu_cxx::char_traits::find(__s, __n, __a); +#endif + return static_cast(__builtin_memchr(__s, __a, __n)); + } + + static _GLIBCXX20_CONSTEXPR char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::move(__s1, __s2, __n); +#endif + return static_cast(__builtin_memmove(__s1, __s2, __n)); + } + + static _GLIBCXX20_CONSTEXPR char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::copy(__s1, __s2, __n); +#endif + return static_cast(__builtin_memcpy(__s1, __s2, __n)); + } + + static _GLIBCXX20_CONSTEXPR char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + if (__n == 0) + return __s; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::assign(__s, __n, __a); +#endif + return static_cast(__builtin_memset(__s, __a, __n)); + } + + static _GLIBCXX_CONSTEXPR char_type + to_char_type(const int_type& __c) _GLIBCXX_NOEXCEPT + { return char_type(__c); } + + static _GLIBCXX_CONSTEXPR int_type + to_int_type(const char_type& __c) _GLIBCXX_NOEXCEPT + { return int_type(__c); } + + static _GLIBCXX_CONSTEXPR bool + eq_int_type(const int_type& __c1, const int_type& __c2) _GLIBCXX_NOEXCEPT + { return __c1 == __c2; } + + static _GLIBCXX_CONSTEXPR int_type + eof() _GLIBCXX_NOEXCEPT + { return static_cast(-1); } + + static _GLIBCXX_CONSTEXPR int_type + not_eof(const int_type& __c) _GLIBCXX_NOEXCEPT + { return eq_int_type(__c, eof()) ? 0 : __c; } + }; +#endif //_GLIBCXX_USE_CHAR8_T + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#if __cplusplus >= 201103L + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template<> + struct char_traits + { + typedef char16_t char_type; +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + typedef uint_least16_t int_type; +#elif defined __UINT_LEAST16_TYPE__ + typedef __UINT_LEAST16_TYPE__ int_type; +#else + typedef make_unsigned::type int_type; +#endif + typedef streamoff off_type; + typedef u16streampos pos_type; + typedef mbstate_t state_type; +#if __cpp_lib_three_way_comparison + using comparison_category = strong_ordering; +#endif + + static _GLIBCXX17_CONSTEXPR void + assign(char_type& __c1, const char_type& __c2) noexcept + { __c1 = __c2; } + + static constexpr bool + eq(const char_type& __c1, const char_type& __c2) noexcept + { return __c1 == __c2; } + + static constexpr bool + lt(const char_type& __c1, const char_type& __c2) noexcept + { return __c1 < __c2; } + + static _GLIBCXX17_CONSTEXPR int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + for (size_t __i = 0; __i < __n; ++__i) + if (lt(__s1[__i], __s2[__i])) + return -1; + else if (lt(__s2[__i], __s1[__i])) + return 1; + return 0; + } + + static _GLIBCXX17_CONSTEXPR size_t + length(const char_type* __s) + { + size_t __i = 0; + while (!eq(__s[__i], char_type())) + ++__i; + return __i; + } + + static _GLIBCXX17_CONSTEXPR const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + for (size_t __i = 0; __i < __n; ++__i) + if (eq(__s[__i], __a)) + return __s + __i; + return 0; + } + + static _GLIBCXX20_CONSTEXPR char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::move(__s1, __s2, __n); +#endif + return (static_cast + (__builtin_memmove(__s1, __s2, __n * sizeof(char_type)))); + } + + static _GLIBCXX20_CONSTEXPR char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::copy(__s1, __s2, __n); +#endif + return (static_cast + (__builtin_memcpy(__s1, __s2, __n * sizeof(char_type)))); + } + + static _GLIBCXX20_CONSTEXPR char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + for (size_t __i = 0; __i < __n; ++__i) + assign(__s[__i], __a); + return __s; + } + + static constexpr char_type + to_char_type(const int_type& __c) noexcept + { return char_type(__c); } + + static constexpr int_type + to_int_type(const char_type& __c) noexcept + { return __c == eof() ? int_type(0xfffd) : int_type(__c); } + + static constexpr bool + eq_int_type(const int_type& __c1, const int_type& __c2) noexcept + { return __c1 == __c2; } + + static constexpr int_type + eof() noexcept + { return static_cast(-1); } + + static constexpr int_type + not_eof(const int_type& __c) noexcept + { return eq_int_type(__c, eof()) ? 0 : __c; } + }; + + template<> + struct char_traits + { + typedef char32_t char_type; +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + typedef uint_least32_t int_type; +#elif defined __UINT_LEAST32_TYPE__ + typedef __UINT_LEAST32_TYPE__ int_type; +#else + typedef make_unsigned::type int_type; +#endif + typedef streamoff off_type; + typedef u32streampos pos_type; + typedef mbstate_t state_type; +#if __cpp_lib_three_way_comparison + using comparison_category = strong_ordering; +#endif + + static _GLIBCXX17_CONSTEXPR void + assign(char_type& __c1, const char_type& __c2) noexcept + { __c1 = __c2; } + + static constexpr bool + eq(const char_type& __c1, const char_type& __c2) noexcept + { return __c1 == __c2; } + + static constexpr bool + lt(const char_type& __c1, const char_type& __c2) noexcept + { return __c1 < __c2; } + + static _GLIBCXX17_CONSTEXPR int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + for (size_t __i = 0; __i < __n; ++__i) + if (lt(__s1[__i], __s2[__i])) + return -1; + else if (lt(__s2[__i], __s1[__i])) + return 1; + return 0; + } + + static _GLIBCXX17_CONSTEXPR size_t + length(const char_type* __s) + { + size_t __i = 0; + while (!eq(__s[__i], char_type())) + ++__i; + return __i; + } + + static _GLIBCXX17_CONSTEXPR const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + for (size_t __i = 0; __i < __n; ++__i) + if (eq(__s[__i], __a)) + return __s + __i; + return 0; + } + + static _GLIBCXX20_CONSTEXPR char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::move(__s1, __s2, __n); +#endif + return (static_cast + (__builtin_memmove(__s1, __s2, __n * sizeof(char_type)))); + } + + static _GLIBCXX20_CONSTEXPR char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __gnu_cxx::char_traits::copy(__s1, __s2, __n); +#endif + return (static_cast + (__builtin_memcpy(__s1, __s2, __n * sizeof(char_type)))); + } + + static _GLIBCXX20_CONSTEXPR char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + for (size_t __i = 0; __i < __n; ++__i) + assign(__s[__i], __a); + return __s; + } + + static constexpr char_type + to_char_type(const int_type& __c) noexcept + { return char_type(__c); } + + static constexpr int_type + to_int_type(const char_type& __c) noexcept + { return int_type(__c); } + + static constexpr bool + eq_int_type(const int_type& __c1, const int_type& __c2) noexcept + { return __c1 == __c2; } + + static constexpr int_type + eof() noexcept + { return static_cast(-1); } + + static constexpr int_type + not_eof(const int_type& __c) noexcept + { return eq_int_type(__c, eof()) ? 0 : __c; } + }; + +#if __cpp_lib_three_way_comparison + namespace __detail + { + template + constexpr auto + __char_traits_cmp_cat(int __cmp) noexcept + { + if constexpr (requires { typename _ChTraits::comparison_category; }) + { + using _Cat = typename _ChTraits::comparison_category; + static_assert( !is_void_v> ); + return static_cast<_Cat>(__cmp <=> 0); + } + else + return static_cast(__cmp <=> 0); + } + } // namespace __detail +#endif // C++20 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif // _CHAR_TRAITS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/charconv.h b/resources/sources/avr-libstdcpp/include/bits/charconv.h new file mode 100644 index 000000000..a3149bddb --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/charconv.h @@ -0,0 +1,106 @@ +// Numeric conversions (to_string, to_chars) -*- C++ -*- + +// Copyright (C) 2017-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/charconv.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{charconv} + */ + +#ifndef _GLIBCXX_CHARCONV_H +#define _GLIBCXX_CHARCONV_H 1 + +#pragma GCC system_header + +#if __cplusplus >= 201103L + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +namespace __detail +{ + // Generic implementation for arbitrary bases. + template + _GLIBCXX14_CONSTEXPR unsigned + __to_chars_len(_Tp __value, int __base = 10) noexcept + { + static_assert(is_integral<_Tp>::value, "implementation bug"); + static_assert(is_unsigned<_Tp>::value, "implementation bug"); + + unsigned __n = 1; + const unsigned __b2 = __base * __base; + const unsigned __b3 = __b2 * __base; + const unsigned long __b4 = __b3 * __base; + for (;;) + { + if (__value < (unsigned)__base) return __n; + if (__value < __b2) return __n + 1; + if (__value < __b3) return __n + 2; + if (__value < __b4) return __n + 3; + __value /= __b4; + __n += 4; + } + } + + // Write an unsigned integer value to the range [first,first+len). + // The caller is required to provide a buffer of exactly the right size + // (which can be determined by the __to_chars_len function). + template + void + __to_chars_10_impl(char* __first, unsigned __len, _Tp __val) noexcept + { + static_assert(is_integral<_Tp>::value, "implementation bug"); + static_assert(is_unsigned<_Tp>::value, "implementation bug"); + + static constexpr char __digits[201] = + "0001020304050607080910111213141516171819" + "2021222324252627282930313233343536373839" + "4041424344454647484950515253545556575859" + "6061626364656667686970717273747576777879" + "8081828384858687888990919293949596979899"; + unsigned __pos = __len - 1; + while (__val >= 100) + { + auto const __num = (__val % 100) * 2; + __val /= 100; + __first[__pos] = __digits[__num + 1]; + __first[__pos - 1] = __digits[__num]; + __pos -= 2; + } + if (__val >= 10) + { + auto const __num = __val * 2; + __first[1] = __digits[__num + 1]; + __first[0] = __digits[__num]; + } + else + __first[0] = '0' + __val; + } + +} // namespace __detail +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++11 +#endif // _GLIBCXX_CHARCONV_H diff --git a/resources/sources/avr-libstdcpp/include/bits/concept_check.h b/resources/sources/avr-libstdcpp/include/bits/concept_check.h new file mode 100644 index 000000000..8923a71fc --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/concept_check.h @@ -0,0 +1,81 @@ +// Concept-checking control -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/concept_check.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + */ + +#ifndef _CONCEPT_CHECK_H +#define _CONCEPT_CHECK_H 1 + +#pragma GCC system_header + +#include + +// All places in libstdc++-v3 where these are used, or /might/ be used, or +// don't need to be used, or perhaps /should/ be used, are commented with +// "concept requirements" (and maybe some more text). So grep like crazy +// if you're looking for additional places to use these. + +// Concept-checking code is off by default unless users turn it on via +// configure options or editing c++config.h. +// It is not supported for freestanding implementations. + +#if !defined(_GLIBCXX_CONCEPT_CHECKS) || !_GLIBCXX_HOSTED + +#define __glibcxx_function_requires(...) +#define __glibcxx_class_requires(_a,_b) +#define __glibcxx_class_requires2(_a,_b,_c) +#define __glibcxx_class_requires3(_a,_b,_c,_d) +#define __glibcxx_class_requires4(_a,_b,_c,_d,_e) + +#else // the checks are on + +#include + +// Note that the obvious and elegant approach of +// +//#define glibcxx_function_requires(C) debug::function_requires< debug::C >() +// +// won't work due to concept templates with more than one parameter, e.g., +// BinaryPredicateConcept. The preprocessor tries to split things up on +// the commas in the template argument list. We can't use an inner pair of +// parenthesis to hide the commas, because "debug::(Temp)" isn't +// a valid instantiation pattern. Thus, we steal a feature from C99. + +#define __glibcxx_function_requires(...) \ + __gnu_cxx::__function_requires< __gnu_cxx::__VA_ARGS__ >(); +#define __glibcxx_class_requires(_a,_C) \ + _GLIBCXX_CLASS_REQUIRES(_a, __gnu_cxx, _C); +#define __glibcxx_class_requires2(_a,_b,_C) \ + _GLIBCXX_CLASS_REQUIRES2(_a, _b, __gnu_cxx, _C); +#define __glibcxx_class_requires3(_a,_b,_c,_C) \ + _GLIBCXX_CLASS_REQUIRES3(_a, _b, _c, __gnu_cxx, _C); +#define __glibcxx_class_requires4(_a,_b,_c,_d,_C) \ + _GLIBCXX_CLASS_REQUIRES4(_a, _b, _c, _d, __gnu_cxx, _C); + +#endif // enable/disable + +#endif // _GLIBCXX_CONCEPT_CHECK diff --git a/resources/sources/avr-libstdcpp/include/bits/cpp_type_traits.h b/resources/sources/avr-libstdcpp/include/bits/cpp_type_traits.h new file mode 100644 index 000000000..ca83f590e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/cpp_type_traits.h @@ -0,0 +1,551 @@ +// The -*- C++ -*- type traits classes for internal use in libstdc++ + +// Copyright (C) 2000-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/cpp_type_traits.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{ext/type_traits} + */ + +// Written by Gabriel Dos Reis + +#ifndef _CPP_TYPE_TRAITS_H +#define _CPP_TYPE_TRAITS_H 1 + +#pragma GCC system_header + +#include + +// +// This file provides some compile-time information about various types. +// These representations were designed, on purpose, to be constant-expressions +// and not types as found in . In particular, they +// can be used in control structures and the optimizer hopefully will do +// the obvious thing. +// +// Why integral expressions, and not functions nor types? +// Firstly, these compile-time entities are used as template-arguments +// so function return values won't work: We need compile-time entities. +// We're left with types and constant integral expressions. +// Secondly, from the point of view of ease of use, type-based compile-time +// information is -not- *that* convenient. One has to write lots of +// overloaded functions and to hope that the compiler will select the right +// one. As a net effect, the overall structure isn't very clear at first +// glance. +// Thirdly, partial ordering and overload resolution (of function templates) +// is highly costly in terms of compiler-resource. It is a Good Thing to +// keep these resource consumption as least as possible. +// +// See valarray_array.h for a case use. +// +// -- Gaby (dosreis@cmla.ens-cachan.fr) 2000-03-06. +// +// Update 2005: types are also provided and has been +// removed. +// + +extern "C++" { + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + struct __true_type { }; + struct __false_type { }; + + template + struct __truth_type + { typedef __false_type __type; }; + + template<> + struct __truth_type + { typedef __true_type __type; }; + + // N.B. The conversions to bool are needed due to the issue + // explained in c++/19404. + template + struct __traitor + { + enum { __value = bool(_Sp::__value) || bool(_Tp::__value) }; + typedef typename __truth_type<__value>::__type __type; + }; + + // Compare for equality of types. + template + struct __are_same + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + template + struct __are_same<_Tp, _Tp> + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + // Holds if the template-argument is a void type. + template + struct __is_void + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + template<> + struct __is_void + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + // + // Integer types + // + template + struct __is_integer + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + // Thirteen specializations (yes there are eleven standard integer + // types; long long and unsigned long long are + // supported as extensions). Up to four target-specific __int + // types are supported as well. + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + +# ifdef _GLIBCXX_USE_WCHAR_T + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; +# endif + +#ifdef _GLIBCXX_USE_CHAR8_T + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; +#endif + +#if __cplusplus >= 201103L + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; +#endif + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_integer + { + enum { __value = 1 }; + typedef __true_type __type; + }; + +#define __INT_N(TYPE) \ + template<> \ + struct __is_integer \ + { \ + enum { __value = 1 }; \ + typedef __true_type __type; \ + }; \ + template<> \ + struct __is_integer \ + { \ + enum { __value = 1 }; \ + typedef __true_type __type; \ + }; + +#ifdef __GLIBCXX_TYPE_INT_N_0 +__INT_N(__GLIBCXX_TYPE_INT_N_0) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_1 +__INT_N(__GLIBCXX_TYPE_INT_N_1) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_2 +__INT_N(__GLIBCXX_TYPE_INT_N_2) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_3 +__INT_N(__GLIBCXX_TYPE_INT_N_3) +#endif + +#undef __INT_N + + // + // Floating point types + // + template + struct __is_floating + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + // three specializations (float, double and 'long double') + template<> + struct __is_floating + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_floating + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_floating + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + // + // Pointer types + // + template + struct __is_pointer + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + template + struct __is_pointer<_Tp*> + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + // + // An arithmetic type is an integer type or a floating point type + // + template + struct __is_arithmetic + : public __traitor<__is_integer<_Tp>, __is_floating<_Tp> > + { }; + + // + // A scalar type is an arithmetic type or a pointer type + // + template + struct __is_scalar + : public __traitor<__is_arithmetic<_Tp>, __is_pointer<_Tp> > + { }; + + // + // For use in std::copy and std::find overloads for streambuf iterators. + // + template + struct __is_char + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + template<> + struct __is_char + { + enum { __value = 1 }; + typedef __true_type __type; + }; + +#ifdef _GLIBCXX_USE_WCHAR_T + template<> + struct __is_char + { + enum { __value = 1 }; + typedef __true_type __type; + }; +#endif + + template + struct __is_byte + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + template<> + struct __is_byte + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_byte + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template<> + struct __is_byte + { + enum { __value = 1 }; + typedef __true_type __type; + }; + +#if __cplusplus >= 201703L + enum class byte : unsigned char; + + template<> + struct __is_byte + { + enum { __value = 1 }; + typedef __true_type __type; + }; +#endif // C++17 + +#ifdef _GLIBCXX_USE_CHAR8_T + template<> + struct __is_byte + { + enum { __value = 1 }; + typedef __true_type __type; + }; +#endif + + template struct iterator_traits; + + // A type that is safe for use with memcpy, memmove, memcmp etc. + template + struct __is_nonvolatile_trivially_copyable + { + enum { __value = __is_trivially_copyable(_Tp) }; + }; + + // Cannot use memcpy/memmove/memcmp on volatile types even if they are + // trivially copyable, so ensure __memcpyable + // and similar will be false. + template + struct __is_nonvolatile_trivially_copyable + { + enum { __value = 0 }; + }; + + // Whether two iterator types can be used with memcpy/memmove. + template + struct __memcpyable + { + enum { __value = 0 }; + }; + + template + struct __memcpyable<_Tp*, _Tp*> + : __is_nonvolatile_trivially_copyable<_Tp> + { }; + + template + struct __memcpyable<_Tp*, const _Tp*> + : __is_nonvolatile_trivially_copyable<_Tp> + { }; + + // Whether two iterator types can be used with memcmp. + // This trait only says it's well-formed to use memcmp, not that it + // gives the right answer for a given algorithm. So for example, std::equal + // needs to add additional checks that the types are integers or pointers, + // because other trivially copyable types can overload operator==. + template + struct __memcmpable + { + enum { __value = 0 }; + }; + + // OK to use memcmp with pointers to trivially copyable types. + template + struct __memcmpable<_Tp*, _Tp*> + : __is_nonvolatile_trivially_copyable<_Tp> + { }; + + template + struct __memcmpable + : __is_nonvolatile_trivially_copyable<_Tp> + { }; + + template + struct __memcmpable<_Tp*, const _Tp*> + : __is_nonvolatile_trivially_copyable<_Tp> + { }; + + // Whether memcmp can be used to determine ordering for a type + // e.g. in std::lexicographical_compare or three-way comparisons. + // True for unsigned narrow character types (and std::byte). + template::__value> + struct __is_memcmp_ordered + { + static const bool __value = _Tp(-1) > _Tp(1); // is unsigned + }; + + template + struct __is_memcmp_ordered<_Tp, false> + { + static const bool __value = false; + }; + + // Whether two types can be compared using memcmp. + template + struct __is_memcmp_ordered_with + { + static const bool __value = __is_memcmp_ordered<_Tp>::__value + && __is_memcmp_ordered<_Up>::__value; + }; + + template + struct __is_memcmp_ordered_with<_Tp, _Up, false> + { + static const bool __value = false; + }; + +#if __cplusplus >= 201703L + // std::byte can only be compared to itself, not to other types. + template<> + struct __is_memcmp_ordered_with + { static constexpr bool __value = true; }; + + template + struct __is_memcmp_ordered_with<_Tp, std::byte, _SameSize> + { static constexpr bool __value = false; }; + + template + struct __is_memcmp_ordered_with + { static constexpr bool __value = false; }; +#endif + + // + // Move iterator type + // + template + struct __is_move_iterator + { + enum { __value = 0 }; + typedef __false_type __type; + }; + + // Fallback implementation of the function in bits/stl_iterator.h used to + // remove the move_iterator wrapper. + template + _GLIBCXX20_CONSTEXPR + inline _Iterator + __miter_base(_Iterator __it) + { return __it; } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +} // extern "C++" + +#endif //_CPP_TYPE_TRAITS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/cxxabi_forced.h b/resources/sources/avr-libstdcpp/include/bits/cxxabi_forced.h new file mode 100644 index 000000000..9e61a382b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/cxxabi_forced.h @@ -0,0 +1,60 @@ +// cxxabi.h subset for cancellation -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of GCC. +// +// GCC is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 3, or (at your option) +// any later version. +// +// GCC is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/cxxabi_forced.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{cxxabi.h} + */ + +#ifndef _CXXABI_FORCED_H +#define _CXXABI_FORCED_H 1 + +#pragma GCC system_header + +#pragma GCC visibility push(default) + +#ifdef __cplusplus +namespace __cxxabiv1 +{ + /** + * @brief Thrown as part of forced unwinding. + * @ingroup exceptions + * + * A magic placeholder class that can be caught by reference to + * recognize forced unwinding. + */ + class __forced_unwind + { + virtual ~__forced_unwind() throw(); + + // Prevent catch by value. + virtual void __pure_dummy() = 0; + }; +} +#endif // __cplusplus + +#pragma GCC visibility pop + +#endif // __CXXABI_FORCED_H diff --git a/resources/sources/avr-libstdcpp/include/bits/cxxabi_init_exception.h b/resources/sources/avr-libstdcpp/include/bits/cxxabi_init_exception.h new file mode 100644 index 000000000..9ea0599ed --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/cxxabi_init_exception.h @@ -0,0 +1,80 @@ +// ABI Support -*- C++ -*- + +// Copyright (C) 2016-2020 Free Software Foundation, Inc. +// +// This file is part of GCC. +// +// GCC is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 3, or (at your option) +// any later version. +// +// GCC is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/cxxabi_init_exception.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. + */ + +#ifndef _CXXABI_INIT_EXCEPTION_H +#define _CXXABI_INIT_EXCEPTION_H 1 + +#pragma GCC system_header + +#pragma GCC visibility push(default) + +#include +#include + +#ifndef _GLIBCXX_CDTOR_CALLABI +#define _GLIBCXX_CDTOR_CALLABI +#define _GLIBCXX_HAVE_CDTOR_CALLABI 0 +#else +#define _GLIBCXX_HAVE_CDTOR_CALLABI 1 +#endif + +#ifdef __cplusplus + +namespace std +{ + class type_info; +} + +namespace __cxxabiv1 +{ + struct __cxa_refcounted_exception; + + extern "C" + { + // Allocate memory for the primary exception plus the thrown object. + void* + __cxa_allocate_exception(size_t) _GLIBCXX_NOTHROW; + + void + __cxa_free_exception(void*) _GLIBCXX_NOTHROW; + + // Initialize exception (this is a GNU extension) + __cxa_refcounted_exception* + __cxa_init_primary_exception(void *object, std::type_info *tinfo, + void (_GLIBCXX_CDTOR_CALLABI *dest) (void *)) _GLIBCXX_NOTHROW; + + } +} // namespace __cxxabiv1 + +#endif + +#pragma GCC visibility pop + +#endif // _CXXABI_INIT_EXCEPTION_H diff --git a/resources/sources/avr-libstdcpp/include/bits/deque.tcc b/resources/sources/avr-libstdcpp/include/bits/deque.tcc new file mode 100644 index 000000000..b4943e8ea --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/deque.tcc @@ -0,0 +1,1216 @@ +// Deque implementation (out of line) -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/deque.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{deque} + */ + +#ifndef _DEQUE_TCC +#define _DEQUE_TCC 1 + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + +#if __cplusplus >= 201103L + template + void + deque<_Tp, _Alloc>:: + _M_default_initialize() + { + _Map_pointer __cur; + __try + { + for (__cur = this->_M_impl._M_start._M_node; + __cur < this->_M_impl._M_finish._M_node; + ++__cur) + std::__uninitialized_default_a(*__cur, *__cur + _S_buffer_size(), + _M_get_Tp_allocator()); + std::__uninitialized_default_a(this->_M_impl._M_finish._M_first, + this->_M_impl._M_finish._M_cur, + _M_get_Tp_allocator()); + } + __catch(...) + { + std::_Destroy(this->_M_impl._M_start, iterator(*__cur, __cur), + _M_get_Tp_allocator()); + __throw_exception_again; + } + } +#endif + + template + deque<_Tp, _Alloc>& + deque<_Tp, _Alloc>:: + operator=(const deque& __x) + { + if (&__x != this) + { +#if __cplusplus >= 201103L + if (_Alloc_traits::_S_propagate_on_copy_assign()) + { + if (!_Alloc_traits::_S_always_equal() + && _M_get_Tp_allocator() != __x._M_get_Tp_allocator()) + { + // Replacement allocator cannot free existing storage, + // so deallocate everything and take copy of __x's data. + _M_replace_map(__x, __x.get_allocator()); + std::__alloc_on_copy(_M_get_Tp_allocator(), + __x._M_get_Tp_allocator()); + return *this; + } + std::__alloc_on_copy(_M_get_Tp_allocator(), + __x._M_get_Tp_allocator()); + } +#endif + const size_type __len = size(); + if (__len >= __x.size()) + _M_erase_at_end(std::copy(__x.begin(), __x.end(), + this->_M_impl._M_start)); + else + { + const_iterator __mid = __x.begin() + difference_type(__len); + std::copy(__x.begin(), __mid, this->_M_impl._M_start); + _M_range_insert_aux(this->_M_impl._M_finish, __mid, __x.end(), + std::random_access_iterator_tag()); + } + } + return *this; + } + +#if __cplusplus >= 201103L + template + template +#if __cplusplus > 201402L + typename deque<_Tp, _Alloc>::reference +#else + void +#endif + deque<_Tp, _Alloc>:: + emplace_front(_Args&&... __args) + { + if (this->_M_impl._M_start._M_cur != this->_M_impl._M_start._M_first) + { + _Alloc_traits::construct(this->_M_impl, + this->_M_impl._M_start._M_cur - 1, + std::forward<_Args>(__args)...); + --this->_M_impl._M_start._M_cur; + } + else + _M_push_front_aux(std::forward<_Args>(__args)...); +#if __cplusplus > 201402L + return front(); +#endif + } + + template + template +#if __cplusplus > 201402L + typename deque<_Tp, _Alloc>::reference +#else + void +#endif + deque<_Tp, _Alloc>:: + emplace_back(_Args&&... __args) + { + if (this->_M_impl._M_finish._M_cur + != this->_M_impl._M_finish._M_last - 1) + { + _Alloc_traits::construct(this->_M_impl, + this->_M_impl._M_finish._M_cur, + std::forward<_Args>(__args)...); + ++this->_M_impl._M_finish._M_cur; + } + else + _M_push_back_aux(std::forward<_Args>(__args)...); +#if __cplusplus > 201402L + return back(); +#endif + } +#endif + +#if __cplusplus >= 201103L + template + template + typename deque<_Tp, _Alloc>::iterator + deque<_Tp, _Alloc>:: + emplace(const_iterator __position, _Args&&... __args) + { + if (__position._M_cur == this->_M_impl._M_start._M_cur) + { + emplace_front(std::forward<_Args>(__args)...); + return this->_M_impl._M_start; + } + else if (__position._M_cur == this->_M_impl._M_finish._M_cur) + { + emplace_back(std::forward<_Args>(__args)...); + iterator __tmp = this->_M_impl._M_finish; + --__tmp; + return __tmp; + } + else + return _M_insert_aux(__position._M_const_cast(), + std::forward<_Args>(__args)...); + } +#endif + + template + typename deque<_Tp, _Alloc>::iterator + deque<_Tp, _Alloc>:: +#if __cplusplus >= 201103L + insert(const_iterator __position, const value_type& __x) +#else + insert(iterator __position, const value_type& __x) +#endif + { + if (__position._M_cur == this->_M_impl._M_start._M_cur) + { + push_front(__x); + return this->_M_impl._M_start; + } + else if (__position._M_cur == this->_M_impl._M_finish._M_cur) + { + push_back(__x); + iterator __tmp = this->_M_impl._M_finish; + --__tmp; + return __tmp; + } + else + return _M_insert_aux(__position._M_const_cast(), __x); + } + + template + typename deque<_Tp, _Alloc>::iterator + deque<_Tp, _Alloc>:: + _M_erase(iterator __position) + { + iterator __next = __position; + ++__next; + const difference_type __index = __position - begin(); + if (static_cast(__index) < (size() >> 1)) + { + if (__position != begin()) + _GLIBCXX_MOVE_BACKWARD3(begin(), __position, __next); + pop_front(); + } + else + { + if (__next != end()) + _GLIBCXX_MOVE3(__next, end(), __position); + pop_back(); + } + return begin() + __index; + } + + template + typename deque<_Tp, _Alloc>::iterator + deque<_Tp, _Alloc>:: + _M_erase(iterator __first, iterator __last) + { + if (__first == __last) + return __first; + else if (__first == begin() && __last == end()) + { + clear(); + return end(); + } + else + { + const difference_type __n = __last - __first; + const difference_type __elems_before = __first - begin(); + if (static_cast(__elems_before) <= (size() - __n) / 2) + { + if (__first != begin()) + _GLIBCXX_MOVE_BACKWARD3(begin(), __first, __last); + _M_erase_at_begin(begin() + __n); + } + else + { + if (__last != end()) + _GLIBCXX_MOVE3(__last, end(), __first); + _M_erase_at_end(end() - __n); + } + return begin() + __elems_before; + } + } + + template + template + void + deque<_Tp, _Alloc>:: + _M_assign_aux(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + iterator __cur = begin(); + for (; __first != __last && __cur != end(); ++__cur, (void)++__first) + *__cur = *__first; + if (__first == __last) + _M_erase_at_end(__cur); + else + _M_range_insert_aux(end(), __first, __last, + std::__iterator_category(__first)); + } + + template + void + deque<_Tp, _Alloc>:: + _M_fill_insert(iterator __pos, size_type __n, const value_type& __x) + { + if (__pos._M_cur == this->_M_impl._M_start._M_cur) + { + iterator __new_start = _M_reserve_elements_at_front(__n); + __try + { + std::__uninitialized_fill_a(__new_start, this->_M_impl._M_start, + __x, _M_get_Tp_allocator()); + this->_M_impl._M_start = __new_start; + } + __catch(...) + { + _M_destroy_nodes(__new_start._M_node, + this->_M_impl._M_start._M_node); + __throw_exception_again; + } + } + else if (__pos._M_cur == this->_M_impl._M_finish._M_cur) + { + iterator __new_finish = _M_reserve_elements_at_back(__n); + __try + { + std::__uninitialized_fill_a(this->_M_impl._M_finish, + __new_finish, __x, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + } + __catch(...) + { + _M_destroy_nodes(this->_M_impl._M_finish._M_node + 1, + __new_finish._M_node + 1); + __throw_exception_again; + } + } + else + _M_insert_aux(__pos, __n, __x); + } + +#if __cplusplus >= 201103L + template + void + deque<_Tp, _Alloc>:: + _M_default_append(size_type __n) + { + if (__n) + { + iterator __new_finish = _M_reserve_elements_at_back(__n); + __try + { + std::__uninitialized_default_a(this->_M_impl._M_finish, + __new_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + } + __catch(...) + { + _M_destroy_nodes(this->_M_impl._M_finish._M_node + 1, + __new_finish._M_node + 1); + __throw_exception_again; + } + } + } + + template + bool + deque<_Tp, _Alloc>:: + _M_shrink_to_fit() + { + const difference_type __front_capacity + = (this->_M_impl._M_start._M_cur - this->_M_impl._M_start._M_first); + if (__front_capacity == 0) + return false; + + const difference_type __back_capacity + = (this->_M_impl._M_finish._M_last - this->_M_impl._M_finish._M_cur); + if (__front_capacity + __back_capacity < _S_buffer_size()) + return false; + + return std::__shrink_to_fit_aux::_S_do_it(*this); + } +#endif + + template + void + deque<_Tp, _Alloc>:: + _M_fill_initialize(const value_type& __value) + { + _Map_pointer __cur; + __try + { + for (__cur = this->_M_impl._M_start._M_node; + __cur < this->_M_impl._M_finish._M_node; + ++__cur) + std::__uninitialized_fill_a(*__cur, *__cur + _S_buffer_size(), + __value, _M_get_Tp_allocator()); + std::__uninitialized_fill_a(this->_M_impl._M_finish._M_first, + this->_M_impl._M_finish._M_cur, + __value, _M_get_Tp_allocator()); + } + __catch(...) + { + std::_Destroy(this->_M_impl._M_start, iterator(*__cur, __cur), + _M_get_Tp_allocator()); + __throw_exception_again; + } + } + + template + template + void + deque<_Tp, _Alloc>:: + _M_range_initialize(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + this->_M_initialize_map(0); + __try + { + for (; __first != __last; ++__first) +#if __cplusplus >= 201103L + emplace_back(*__first); +#else + push_back(*__first); +#endif + } + __catch(...) + { + clear(); + __throw_exception_again; + } + } + + template + template + void + deque<_Tp, _Alloc>:: + _M_range_initialize(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __n = std::distance(__first, __last); + this->_M_initialize_map(_S_check_init_len(__n, _M_get_Tp_allocator())); + + _Map_pointer __cur_node; + __try + { + for (__cur_node = this->_M_impl._M_start._M_node; + __cur_node < this->_M_impl._M_finish._M_node; + ++__cur_node) + { + _ForwardIterator __mid = __first; + std::advance(__mid, _S_buffer_size()); + std::__uninitialized_copy_a(__first, __mid, *__cur_node, + _M_get_Tp_allocator()); + __first = __mid; + } + std::__uninitialized_copy_a(__first, __last, + this->_M_impl._M_finish._M_first, + _M_get_Tp_allocator()); + } + __catch(...) + { + std::_Destroy(this->_M_impl._M_start, + iterator(*__cur_node, __cur_node), + _M_get_Tp_allocator()); + __throw_exception_again; + } + } + + // Called only if _M_impl._M_finish._M_cur == _M_impl._M_finish._M_last - 1. + template +#if __cplusplus >= 201103L + template + void + deque<_Tp, _Alloc>:: + _M_push_back_aux(_Args&&... __args) +#else + void + deque<_Tp, _Alloc>:: + _M_push_back_aux(const value_type& __t) +#endif + { + if (size() == max_size()) + __throw_length_error( + __N("cannot create std::deque larger than max_size()")); + + _M_reserve_map_at_back(); + *(this->_M_impl._M_finish._M_node + 1) = this->_M_allocate_node(); + __try + { +#if __cplusplus >= 201103L + _Alloc_traits::construct(this->_M_impl, + this->_M_impl._M_finish._M_cur, + std::forward<_Args>(__args)...); +#else + this->_M_impl.construct(this->_M_impl._M_finish._M_cur, __t); +#endif + this->_M_impl._M_finish._M_set_node(this->_M_impl._M_finish._M_node + + 1); + this->_M_impl._M_finish._M_cur = this->_M_impl._M_finish._M_first; + } + __catch(...) + { + _M_deallocate_node(*(this->_M_impl._M_finish._M_node + 1)); + __throw_exception_again; + } + } + + // Called only if _M_impl._M_start._M_cur == _M_impl._M_start._M_first. + template +#if __cplusplus >= 201103L + template + void + deque<_Tp, _Alloc>:: + _M_push_front_aux(_Args&&... __args) +#else + void + deque<_Tp, _Alloc>:: + _M_push_front_aux(const value_type& __t) +#endif + { + if (size() == max_size()) + __throw_length_error( + __N("cannot create std::deque larger than max_size()")); + + _M_reserve_map_at_front(); + *(this->_M_impl._M_start._M_node - 1) = this->_M_allocate_node(); + __try + { + this->_M_impl._M_start._M_set_node(this->_M_impl._M_start._M_node + - 1); + this->_M_impl._M_start._M_cur = this->_M_impl._M_start._M_last - 1; +#if __cplusplus >= 201103L + _Alloc_traits::construct(this->_M_impl, + this->_M_impl._M_start._M_cur, + std::forward<_Args>(__args)...); +#else + this->_M_impl.construct(this->_M_impl._M_start._M_cur, __t); +#endif + } + __catch(...) + { + ++this->_M_impl._M_start; + _M_deallocate_node(*(this->_M_impl._M_start._M_node - 1)); + __throw_exception_again; + } + } + + // Called only if _M_impl._M_finish._M_cur == _M_impl._M_finish._M_first. + template + void deque<_Tp, _Alloc>:: + _M_pop_back_aux() + { + _M_deallocate_node(this->_M_impl._M_finish._M_first); + this->_M_impl._M_finish._M_set_node(this->_M_impl._M_finish._M_node - 1); + this->_M_impl._M_finish._M_cur = this->_M_impl._M_finish._M_last - 1; + _Alloc_traits::destroy(_M_get_Tp_allocator(), + this->_M_impl._M_finish._M_cur); + } + + // Called only if _M_impl._M_start._M_cur == _M_impl._M_start._M_last - 1. + // Note that if the deque has at least one element (a precondition for this + // member function), and if + // _M_impl._M_start._M_cur == _M_impl._M_start._M_last, + // then the deque must have at least two nodes. + template + void deque<_Tp, _Alloc>:: + _M_pop_front_aux() + { + _Alloc_traits::destroy(_M_get_Tp_allocator(), + this->_M_impl._M_start._M_cur); + _M_deallocate_node(this->_M_impl._M_start._M_first); + this->_M_impl._M_start._M_set_node(this->_M_impl._M_start._M_node + 1); + this->_M_impl._M_start._M_cur = this->_M_impl._M_start._M_first; + } + + template + template + void + deque<_Tp, _Alloc>:: + _M_range_insert_aux(iterator __pos, + _InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { std::copy(__first, __last, std::inserter(*this, __pos)); } + + template + template + void + deque<_Tp, _Alloc>:: + _M_range_insert_aux(iterator __pos, + _ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __n = std::distance(__first, __last); + if (__pos._M_cur == this->_M_impl._M_start._M_cur) + { + iterator __new_start = _M_reserve_elements_at_front(__n); + __try + { + std::__uninitialized_copy_a(__first, __last, __new_start, + _M_get_Tp_allocator()); + this->_M_impl._M_start = __new_start; + } + __catch(...) + { + _M_destroy_nodes(__new_start._M_node, + this->_M_impl._M_start._M_node); + __throw_exception_again; + } + } + else if (__pos._M_cur == this->_M_impl._M_finish._M_cur) + { + iterator __new_finish = _M_reserve_elements_at_back(__n); + __try + { + std::__uninitialized_copy_a(__first, __last, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + } + __catch(...) + { + _M_destroy_nodes(this->_M_impl._M_finish._M_node + 1, + __new_finish._M_node + 1); + __throw_exception_again; + } + } + else + _M_insert_aux(__pos, __first, __last, __n); + } + + template +#if __cplusplus >= 201103L + template + typename deque<_Tp, _Alloc>::iterator + deque<_Tp, _Alloc>:: + _M_insert_aux(iterator __pos, _Args&&... __args) + { + value_type __x_copy(std::forward<_Args>(__args)...); // XXX copy +#else + typename deque<_Tp, _Alloc>::iterator + deque<_Tp, _Alloc>:: + _M_insert_aux(iterator __pos, const value_type& __x) + { + value_type __x_copy = __x; // XXX copy +#endif + difference_type __index = __pos - this->_M_impl._M_start; + if (static_cast(__index) < size() / 2) + { + push_front(_GLIBCXX_MOVE(front())); + iterator __front1 = this->_M_impl._M_start; + ++__front1; + iterator __front2 = __front1; + ++__front2; + __pos = this->_M_impl._M_start + __index; + iterator __pos1 = __pos; + ++__pos1; + _GLIBCXX_MOVE3(__front2, __pos1, __front1); + } + else + { + push_back(_GLIBCXX_MOVE(back())); + iterator __back1 = this->_M_impl._M_finish; + --__back1; + iterator __back2 = __back1; + --__back2; + __pos = this->_M_impl._M_start + __index; + _GLIBCXX_MOVE_BACKWARD3(__pos, __back2, __back1); + } + *__pos = _GLIBCXX_MOVE(__x_copy); + return __pos; + } + + template + void + deque<_Tp, _Alloc>:: + _M_insert_aux(iterator __pos, size_type __n, const value_type& __x) + { + const difference_type __elems_before = __pos - this->_M_impl._M_start; + const size_type __length = this->size(); + value_type __x_copy = __x; + if (__elems_before < difference_type(__length / 2)) + { + iterator __new_start = _M_reserve_elements_at_front(__n); + iterator __old_start = this->_M_impl._M_start; + __pos = this->_M_impl._M_start + __elems_before; + __try + { + if (__elems_before >= difference_type(__n)) + { + iterator __start_n = (this->_M_impl._M_start + + difference_type(__n)); + std::__uninitialized_move_a(this->_M_impl._M_start, + __start_n, __new_start, + _M_get_Tp_allocator()); + this->_M_impl._M_start = __new_start; + _GLIBCXX_MOVE3(__start_n, __pos, __old_start); + std::fill(__pos - difference_type(__n), __pos, __x_copy); + } + else + { + std::__uninitialized_move_fill(this->_M_impl._M_start, + __pos, __new_start, + this->_M_impl._M_start, + __x_copy, + _M_get_Tp_allocator()); + this->_M_impl._M_start = __new_start; + std::fill(__old_start, __pos, __x_copy); + } + } + __catch(...) + { + _M_destroy_nodes(__new_start._M_node, + this->_M_impl._M_start._M_node); + __throw_exception_again; + } + } + else + { + iterator __new_finish = _M_reserve_elements_at_back(__n); + iterator __old_finish = this->_M_impl._M_finish; + const difference_type __elems_after = + difference_type(__length) - __elems_before; + __pos = this->_M_impl._M_finish - __elems_after; + __try + { + if (__elems_after > difference_type(__n)) + { + iterator __finish_n = (this->_M_impl._M_finish + - difference_type(__n)); + std::__uninitialized_move_a(__finish_n, + this->_M_impl._M_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + _GLIBCXX_MOVE_BACKWARD3(__pos, __finish_n, __old_finish); + std::fill(__pos, __pos + difference_type(__n), __x_copy); + } + else + { + std::__uninitialized_fill_move(this->_M_impl._M_finish, + __pos + difference_type(__n), + __x_copy, __pos, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + std::fill(__pos, __old_finish, __x_copy); + } + } + __catch(...) + { + _M_destroy_nodes(this->_M_impl._M_finish._M_node + 1, + __new_finish._M_node + 1); + __throw_exception_again; + } + } + } + + template + template + void + deque<_Tp, _Alloc>:: + _M_insert_aux(iterator __pos, + _ForwardIterator __first, _ForwardIterator __last, + size_type __n) + { + const difference_type __elemsbefore = __pos - this->_M_impl._M_start; + const size_type __length = size(); + if (static_cast(__elemsbefore) < __length / 2) + { + iterator __new_start = _M_reserve_elements_at_front(__n); + iterator __old_start = this->_M_impl._M_start; + __pos = this->_M_impl._M_start + __elemsbefore; + __try + { + if (__elemsbefore >= difference_type(__n)) + { + iterator __start_n = (this->_M_impl._M_start + + difference_type(__n)); + std::__uninitialized_move_a(this->_M_impl._M_start, + __start_n, __new_start, + _M_get_Tp_allocator()); + this->_M_impl._M_start = __new_start; + _GLIBCXX_MOVE3(__start_n, __pos, __old_start); + std::copy(__first, __last, __pos - difference_type(__n)); + } + else + { + _ForwardIterator __mid = __first; + std::advance(__mid, difference_type(__n) - __elemsbefore); + std::__uninitialized_move_copy(this->_M_impl._M_start, + __pos, __first, __mid, + __new_start, + _M_get_Tp_allocator()); + this->_M_impl._M_start = __new_start; + std::copy(__mid, __last, __old_start); + } + } + __catch(...) + { + _M_destroy_nodes(__new_start._M_node, + this->_M_impl._M_start._M_node); + __throw_exception_again; + } + } + else + { + iterator __new_finish = _M_reserve_elements_at_back(__n); + iterator __old_finish = this->_M_impl._M_finish; + const difference_type __elemsafter = + difference_type(__length) - __elemsbefore; + __pos = this->_M_impl._M_finish - __elemsafter; + __try + { + if (__elemsafter > difference_type(__n)) + { + iterator __finish_n = (this->_M_impl._M_finish + - difference_type(__n)); + std::__uninitialized_move_a(__finish_n, + this->_M_impl._M_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + _GLIBCXX_MOVE_BACKWARD3(__pos, __finish_n, __old_finish); + std::copy(__first, __last, __pos); + } + else + { + _ForwardIterator __mid = __first; + std::advance(__mid, __elemsafter); + std::__uninitialized_copy_move(__mid, __last, __pos, + this->_M_impl._M_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __new_finish; + std::copy(__first, __mid, __pos); + } + } + __catch(...) + { + _M_destroy_nodes(this->_M_impl._M_finish._M_node + 1, + __new_finish._M_node + 1); + __throw_exception_again; + } + } + } + + template + void + deque<_Tp, _Alloc>:: + _M_destroy_data_aux(iterator __first, iterator __last) + { + for (_Map_pointer __node = __first._M_node + 1; + __node < __last._M_node; ++__node) + std::_Destroy(*__node, *__node + _S_buffer_size(), + _M_get_Tp_allocator()); + + if (__first._M_node != __last._M_node) + { + std::_Destroy(__first._M_cur, __first._M_last, + _M_get_Tp_allocator()); + std::_Destroy(__last._M_first, __last._M_cur, + _M_get_Tp_allocator()); + } + else + std::_Destroy(__first._M_cur, __last._M_cur, + _M_get_Tp_allocator()); + } + + template + void + deque<_Tp, _Alloc>:: + _M_new_elements_at_front(size_type __new_elems) + { + if (this->max_size() - this->size() < __new_elems) + __throw_length_error(__N("deque::_M_new_elements_at_front")); + + const size_type __new_nodes = ((__new_elems + _S_buffer_size() - 1) + / _S_buffer_size()); + _M_reserve_map_at_front(__new_nodes); + size_type __i; + __try + { + for (__i = 1; __i <= __new_nodes; ++__i) + *(this->_M_impl._M_start._M_node - __i) = this->_M_allocate_node(); + } + __catch(...) + { + for (size_type __j = 1; __j < __i; ++__j) + _M_deallocate_node(*(this->_M_impl._M_start._M_node - __j)); + __throw_exception_again; + } + } + + template + void + deque<_Tp, _Alloc>:: + _M_new_elements_at_back(size_type __new_elems) + { + if (this->max_size() - this->size() < __new_elems) + __throw_length_error(__N("deque::_M_new_elements_at_back")); + + const size_type __new_nodes = ((__new_elems + _S_buffer_size() - 1) + / _S_buffer_size()); + _M_reserve_map_at_back(__new_nodes); + size_type __i; + __try + { + for (__i = 1; __i <= __new_nodes; ++__i) + *(this->_M_impl._M_finish._M_node + __i) = this->_M_allocate_node(); + } + __catch(...) + { + for (size_type __j = 1; __j < __i; ++__j) + _M_deallocate_node(*(this->_M_impl._M_finish._M_node + __j)); + __throw_exception_again; + } + } + + template + void + deque<_Tp, _Alloc>:: + _M_reallocate_map(size_type __nodes_to_add, bool __add_at_front) + { + const size_type __old_num_nodes + = this->_M_impl._M_finish._M_node - this->_M_impl._M_start._M_node + 1; + const size_type __new_num_nodes = __old_num_nodes + __nodes_to_add; + + _Map_pointer __new_nstart; + if (this->_M_impl._M_map_size > 2 * __new_num_nodes) + { + __new_nstart = this->_M_impl._M_map + (this->_M_impl._M_map_size + - __new_num_nodes) / 2 + + (__add_at_front ? __nodes_to_add : 0); + if (__new_nstart < this->_M_impl._M_start._M_node) + std::copy(this->_M_impl._M_start._M_node, + this->_M_impl._M_finish._M_node + 1, + __new_nstart); + else + std::copy_backward(this->_M_impl._M_start._M_node, + this->_M_impl._M_finish._M_node + 1, + __new_nstart + __old_num_nodes); + } + else + { + size_type __new_map_size = this->_M_impl._M_map_size + + std::max(this->_M_impl._M_map_size, + __nodes_to_add) + 2; + + _Map_pointer __new_map = this->_M_allocate_map(__new_map_size); + __new_nstart = __new_map + (__new_map_size - __new_num_nodes) / 2 + + (__add_at_front ? __nodes_to_add : 0); + std::copy(this->_M_impl._M_start._M_node, + this->_M_impl._M_finish._M_node + 1, + __new_nstart); + _M_deallocate_map(this->_M_impl._M_map, this->_M_impl._M_map_size); + + this->_M_impl._M_map = __new_map; + this->_M_impl._M_map_size = __new_map_size; + } + + this->_M_impl._M_start._M_set_node(__new_nstart); + this->_M_impl._M_finish._M_set_node(__new_nstart + __old_num_nodes - 1); + } + +_GLIBCXX_END_NAMESPACE_CONTAINER + + // Overload for deque::iterators, exploiting the "segmented-iterator + // optimization". + template + void + __fill_a1(const _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*>& __first, + const _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*>& __last, + const _VTp& __value) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> _Iter; + if (__first._M_node != __last._M_node) + { + std::__fill_a1(__first._M_cur, __first._M_last, __value); + + for (typename _Iter::_Map_pointer __node = __first._M_node + 1; + __node < __last._M_node; ++__node) + std::__fill_a1(*__node, *__node + _Iter::_S_buffer_size(), __value); + + std::__fill_a1(__last._M_first, __last._M_cur, __value); + } + else + std::__fill_a1(__first._M_cur, __last._M_cur, __value); + } + + template + _OI + __copy_move_dit(_GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __first, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __last, + _OI __result) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> _Iter; + if (__first._M_node != __last._M_node) + { + __result + = std::__copy_move_a1<_IsMove>(__first._M_cur, __first._M_last, + __result); + + for (typename _Iter::_Map_pointer __node = __first._M_node + 1; + __node != __last._M_node; ++__node) + __result + = std::__copy_move_a1<_IsMove>(*__node, + *__node + _Iter::_S_buffer_size(), + __result); + + return std::__copy_move_a1<_IsMove>(__last._M_first, __last._M_cur, + __result); + } + + return std::__copy_move_a1<_IsMove>(__first._M_cur, __last._M_cur, + __result); + } + + template + _OI + __copy_move_a1(_GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __first, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __last, + _OI __result) + { return __copy_move_dit<_IsMove>(__first, __last, __result); } + + template + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*> + __copy_move_a1(_GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr> __first, + _GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr> __last, + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*> __result) + { return __copy_move_dit<_IsMove>(__first, __last, __result); } + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> >::__type + __copy_move_a1(_II __first, _II __last, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> __result) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> _Iter; + typedef typename _Iter::difference_type difference_type; + + difference_type __len = __last - __first; + while (__len > 0) + { + const difference_type __clen + = std::min(__len, __result._M_last - __result._M_cur); + std::__copy_move_a1<_IsMove>(__first, __first + __clen, + __result._M_cur); + + __first += __clen; + __result += __clen; + __len -= __clen; + } + + return __result; + } + + template + _OI + __copy_move_backward_dit( + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __first, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __last, + _OI __result) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> _Iter; + if (__first._M_node != __last._M_node) + { + __result = std::__copy_move_backward_a1<_IsMove>( + __last._M_first, __last._M_cur, __result); + + for (typename _Iter::_Map_pointer __node = __last._M_node - 1; + __node != __first._M_node; --__node) + __result = std::__copy_move_backward_a1<_IsMove>( + *__node, *__node + _Iter::_S_buffer_size(), __result); + + return std::__copy_move_backward_a1<_IsMove>( + __first._M_cur, __first._M_last, __result); + } + + return std::__copy_move_backward_a1<_IsMove>( + __first._M_cur, __last._M_cur, __result); + } + + template + _OI + __copy_move_backward_a1( + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __first, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __last, + _OI __result) + { return __copy_move_backward_dit<_IsMove>(__first, __last, __result); } + + template + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*> + __copy_move_backward_a1( + _GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr> __first, + _GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr> __last, + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*> __result) + { return __copy_move_backward_dit<_IsMove>(__first, __last, __result); } + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> >::__type + __copy_move_backward_a1(_II __first, _II __last, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> __result) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> _Iter; + typedef typename _Iter::difference_type difference_type; + + difference_type __len = __last - __first; + while (__len > 0) + { + difference_type __rlen = __result._M_cur - __result._M_first; + _Tp* __rend = __result._M_cur; + if (!__rlen) + { + __rlen = _Iter::_S_buffer_size(); + __rend = *(__result._M_node - 1) + __rlen; + } + + const difference_type __clen = std::min(__len, __rlen); + std::__copy_move_backward_a1<_IsMove>(__last - __clen, __last, __rend); + + __last -= __clen; + __result -= __clen; + __len -= __clen; + } + + return __result; + } + + template + bool + __equal_dit( + const _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>& __first1, + const _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>& __last1, + _II __first2) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> _Iter; + if (__first1._M_node != __last1._M_node) + { + if (!std::__equal_aux1(__first1._M_cur, __first1._M_last, __first2)) + return false; + + __first2 += __first1._M_last - __first1._M_cur; + for (typename _Iter::_Map_pointer __node = __first1._M_node + 1; + __node != __last1._M_node; + __first2 += _Iter::_S_buffer_size(), ++__node) + if (!std::__equal_aux1(*__node, *__node + _Iter::_S_buffer_size(), + __first2)) + return false; + + return std::__equal_aux1(__last1._M_first, __last1._M_cur, __first2); + } + + return std::__equal_aux1(__first1._M_cur, __last1._M_cur, __first2); + } + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, bool>::__type + __equal_aux1(_GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __first1, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __last1, + _II __first2) + { return std::__equal_dit(__first1, __last1, __first2); } + + template + bool + __equal_aux1(_GLIBCXX_STD_C::_Deque_iterator<_Tp1, _Ref1, _Ptr1> __first1, + _GLIBCXX_STD_C::_Deque_iterator<_Tp1, _Ref1, _Ptr1> __last1, + _GLIBCXX_STD_C::_Deque_iterator<_Tp2, _Ref2, _Ptr2> __first2) + { return std::__equal_dit(__first1, __last1, __first2); } + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, bool>::__type + __equal_aux1(_II __first1, _II __last1, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> __first2) + { + typedef _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr> _Iter; + typedef typename _Iter::difference_type difference_type; + + difference_type __len = __last1 - __first1; + while (__len > 0) + { + const difference_type __clen + = std::min(__len, __first2._M_last - __first2._M_cur); + if (!std::__equal_aux1(__first1, __first1 + __clen, __first2._M_cur)) + return false; + + __first1 += __clen; + __len -= __clen; + __first2 += __clen; + } + + return true; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/enable_special_members.h b/resources/sources/avr-libstdcpp/include/bits/enable_special_members.h new file mode 100644 index 000000000..3c12cfcf8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/enable_special_members.h @@ -0,0 +1,312 @@ +// -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/enable_special_members.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. + */ + +#ifndef _ENABLE_SPECIAL_MEMBERS_H +#define _ENABLE_SPECIAL_MEMBERS_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + struct _Enable_default_constructor_tag + { + explicit constexpr _Enable_default_constructor_tag() = default; + }; + +/** + * @brief A mixin helper to conditionally enable or disable the default + * constructor. + * @sa _Enable_special_members + */ +template + struct _Enable_default_constructor + { + constexpr _Enable_default_constructor() noexcept = default; + constexpr _Enable_default_constructor(_Enable_default_constructor const&) + noexcept = default; + constexpr _Enable_default_constructor(_Enable_default_constructor&&) + noexcept = default; + _Enable_default_constructor& + operator=(_Enable_default_constructor const&) noexcept = default; + _Enable_default_constructor& + operator=(_Enable_default_constructor&&) noexcept = default; + + // Can be used in other ctors. + constexpr explicit + _Enable_default_constructor(_Enable_default_constructor_tag) { } + }; + + +/** + * @brief A mixin helper to conditionally enable or disable the default + * destructor. + * @sa _Enable_special_members + */ +template + struct _Enable_destructor { }; + +/** + * @brief A mixin helper to conditionally enable or disable the copy/move + * special members. + * @sa _Enable_special_members + */ +template + struct _Enable_copy_move { }; + +/** + * @brief A mixin helper to conditionally enable or disable the special + * members. + * + * The @c _Tag type parameter is to make mixin bases unique and thus avoid + * ambiguities. + */ +template + struct _Enable_special_members + : private _Enable_default_constructor<_Default, _Tag>, + private _Enable_destructor<_Destructor, _Tag>, + private _Enable_copy_move<_Copy, _CopyAssignment, + _Move, _MoveAssignment, + _Tag> + { }; + +// Boilerplate follows. + +template + struct _Enable_default_constructor + { + constexpr _Enable_default_constructor() noexcept = delete; + constexpr _Enable_default_constructor(_Enable_default_constructor const&) + noexcept = default; + constexpr _Enable_default_constructor(_Enable_default_constructor&&) + noexcept = default; + _Enable_default_constructor& + operator=(_Enable_default_constructor const&) noexcept = default; + _Enable_default_constructor& + operator=(_Enable_default_constructor&&) noexcept = default; + + // Can be used in other ctors. + constexpr explicit + _Enable_default_constructor(_Enable_default_constructor_tag) { } + }; + +template + struct _Enable_destructor + { ~_Enable_destructor() noexcept = delete; }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = default; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = default; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +template + struct _Enable_copy_move + { + constexpr _Enable_copy_move() noexcept = default; + constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete; + constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move const&) noexcept = delete; + _Enable_copy_move& + operator=(_Enable_copy_move&&) noexcept = delete; + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // _ENABLE_SPECIAL_MEMBERS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/erase_if.h b/resources/sources/avr-libstdcpp/include/bits/erase_if.h new file mode 100644 index 000000000..dc5e6ae58 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/erase_if.h @@ -0,0 +1,72 @@ +// -*- C++ -*- + +// Copyright (C) 2015-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/erase_if.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. + */ + +#ifndef _GLIBCXX_ERASE_IF_H +#define _GLIBCXX_ERASE_IF_H 1 + +#pragma GCC system_header + +#if __cplusplus >= 201402L + +namespace std +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus > 201703L +# define __cpp_lib_erase_if 202002L +#endif + + namespace __detail + { + template + typename _Container::size_type + __erase_nodes_if(_Container& __cont, _Predicate __pred) + { + typename _Container::size_type __num = 0; + for (auto __iter = __cont.begin(), __last = __cont.end(); + __iter != __last;) + { + if (__pred(*__iter)) + { + __iter = __cont.erase(__iter); + ++__num; + } + else + ++__iter; + } + return __num; + } + } // namespace __detail + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++14 + +#endif // _GLIBCXX_ERASE_IF_H diff --git a/resources/sources/avr-libstdcpp/include/bits/error_constants.h b/resources/sources/avr-libstdcpp/include/bits/error_constants.h new file mode 100644 index 000000000..203891454 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/error_constants.h @@ -0,0 +1,180 @@ +// Specific definitions for generic platforms -*- C++ -*- + +// Copyright (C) 2007-2024 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/error_constants.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{system_error} + */ + +#ifndef _GLIBCXX_ERROR_CONSTANTS +#define _GLIBCXX_ERROR_CONSTANTS 1 + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + enum class errc + { + address_family_not_supported = EAFNOSUPPORT, + address_in_use = EADDRINUSE, + address_not_available = EADDRNOTAVAIL, + already_connected = EISCONN, + argument_list_too_long = E2BIG, + argument_out_of_domain = EDOM, + bad_address = EFAULT, + bad_file_descriptor = EBADF, + +#ifdef EBADMSG + bad_message = EBADMSG, +#endif + + broken_pipe = EPIPE, + connection_aborted = ECONNABORTED, + connection_already_in_progress = EALREADY, + connection_refused = ECONNREFUSED, + connection_reset = ECONNRESET, + cross_device_link = EXDEV, + destination_address_required = EDESTADDRREQ, + device_or_resource_busy = EBUSY, + directory_not_empty = ENOTEMPTY, + executable_format_error = ENOEXEC, + file_exists = EEXIST, + file_too_large = EFBIG, + filename_too_long = ENAMETOOLONG, + function_not_supported = ENOSYS, + host_unreachable = EHOSTUNREACH, + +#ifdef EIDRM + identifier_removed = EIDRM, +#endif + + illegal_byte_sequence = EILSEQ, + inappropriate_io_control_operation = ENOTTY, + interrupted = EINTR, + invalid_argument = EINVAL, + invalid_seek = ESPIPE, + io_error = EIO, + is_a_directory = EISDIR, + message_size = EMSGSIZE, + network_down = ENETDOWN, + network_reset = ENETRESET, + network_unreachable = ENETUNREACH, + no_buffer_space = ENOBUFS, + no_child_process = ECHILD, + +#ifdef ENOLINK + no_link = ENOLINK, +#endif + + no_lock_available = ENOLCK, + +#ifdef ENODATA + no_message_available = ENODATA, +#endif + + no_message = ENOMSG, + no_protocol_option = ENOPROTOOPT, + no_space_on_device = ENOSPC, + +#ifdef ENOSR + no_stream_resources = ENOSR, +#endif + + no_such_device_or_address = ENXIO, + no_such_device = ENODEV, + no_such_file_or_directory = ENOENT, + no_such_process = ESRCH, + not_a_directory = ENOTDIR, + not_a_socket = ENOTSOCK, + +#ifdef ENOSTR + not_a_stream = ENOSTR, +#endif + + not_connected = ENOTCONN, + not_enough_memory = ENOMEM, + +#ifdef ENOTSUP + not_supported = ENOTSUP, +#endif + +#ifdef ECANCELED + operation_canceled = ECANCELED, +#endif + + operation_in_progress = EINPROGRESS, + operation_not_permitted = EPERM, + operation_not_supported = EOPNOTSUPP, + operation_would_block = EWOULDBLOCK, + +#ifdef EOWNERDEAD + owner_dead = EOWNERDEAD, +#endif + + permission_denied = EACCES, + +#ifdef EPROTO + protocol_error = EPROTO, +#endif + + protocol_not_supported = EPROTONOSUPPORT, + read_only_file_system = EROFS, + resource_deadlock_would_occur = EDEADLK, + resource_unavailable_try_again = EAGAIN, + result_out_of_range = ERANGE, + +#ifdef ENOTRECOVERABLE + state_not_recoverable = ENOTRECOVERABLE, +#endif + +#ifdef ETIME + stream_timeout = ETIME, +#endif + +#ifdef ETXTBSY + text_file_busy = ETXTBSY, +#endif + + timed_out = ETIMEDOUT, + too_many_files_open_in_system = ENFILE, + too_many_files_open = EMFILE, + too_many_links = EMLINK, + too_many_symbolic_link_levels = ELOOP, + +#ifdef EOVERFLOW + value_too_large = EOVERFLOW, +#elif defined __AVR__ + value_too_large = 999, +#endif + + wrong_protocol_type = EPROTOTYPE + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/exception_defines.h b/resources/sources/avr-libstdcpp/include/bits/exception_defines.h new file mode 100644 index 000000000..bc73d4194 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/exception_defines.h @@ -0,0 +1,47 @@ +// -fno-exceptions Support -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/exception_defines.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{exception} + */ + +#ifndef _EXCEPTION_DEFINES_H +#define _EXCEPTION_DEFINES_H 1 + +#pragma GCC system_header + +#if ! __cpp_exceptions +// Iff -fno-exceptions, transform error handling code to work without it. +# define __try if (true) +# define __catch(X) if (false) +# define __throw_exception_again +#else +// Else proceed normally. +# define __try try +# define __catch(X) catch(X) +# define __throw_exception_again throw +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/forward_list.h b/resources/sources/avr-libstdcpp/include/bits/forward_list.h new file mode 100644 index 000000000..49b2a9737 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/forward_list.h @@ -0,0 +1,1514 @@ +// -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/forward_list.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{forward_list} + */ + +#ifndef _FORWARD_LIST_H +#define _FORWARD_LIST_H 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /** + * @brief A helper basic node class for %forward_list. + * This is just a linked list with nothing inside it. + * There are purely list shuffling utility methods here. + */ + struct _Fwd_list_node_base + { + _Fwd_list_node_base() = default; + _Fwd_list_node_base(_Fwd_list_node_base&& __x) noexcept + : _M_next(__x._M_next) + { __x._M_next = nullptr; } + + _Fwd_list_node_base(const _Fwd_list_node_base&) = delete; + _Fwd_list_node_base& operator=(const _Fwd_list_node_base&) = delete; + + _Fwd_list_node_base& + operator=(_Fwd_list_node_base&& __x) noexcept + { + _M_next = __x._M_next; + __x._M_next = nullptr; + return *this; + } + + _Fwd_list_node_base* _M_next = nullptr; + + _Fwd_list_node_base* + _M_transfer_after(_Fwd_list_node_base* __begin, + _Fwd_list_node_base* __end) noexcept + { + _Fwd_list_node_base* __keep = __begin->_M_next; + if (__end) + { + __begin->_M_next = __end->_M_next; + __end->_M_next = _M_next; + } + else + __begin->_M_next = nullptr; + _M_next = __keep; + return __end; + } + + void + _M_reverse_after() noexcept + { + _Fwd_list_node_base* __tail = _M_next; + if (!__tail) + return; + while (_Fwd_list_node_base* __temp = __tail->_M_next) + { + _Fwd_list_node_base* __keep = _M_next; + _M_next = __temp; + __tail->_M_next = __temp->_M_next; + _M_next->_M_next = __keep; + } + } + }; + + /** + * @brief A helper node class for %forward_list. + * This is just a linked list with uninitialized storage for a + * data value in each node. + * There is a sorting utility method. + */ + template + struct _Fwd_list_node + : public _Fwd_list_node_base + { + _Fwd_list_node() = default; + + __gnu_cxx::__aligned_buffer<_Tp> _M_storage; + + _Tp* + _M_valptr() noexcept + { return _M_storage._M_ptr(); } + + const _Tp* + _M_valptr() const noexcept + { return _M_storage._M_ptr(); } + }; + + /** + * @brief A forward_list::iterator. + * + * All the functions are op overloads. + */ + template + struct _Fwd_list_iterator + { + typedef _Fwd_list_iterator<_Tp> _Self; + typedef _Fwd_list_node<_Tp> _Node; + + typedef _Tp value_type; + typedef _Tp* pointer; + typedef _Tp& reference; + typedef ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + _Fwd_list_iterator() noexcept + : _M_node() { } + + explicit + _Fwd_list_iterator(_Fwd_list_node_base* __n) noexcept + : _M_node(__n) { } + + reference + operator*() const noexcept + { return *static_cast<_Node*>(this->_M_node)->_M_valptr(); } + + pointer + operator->() const noexcept + { return static_cast<_Node*>(this->_M_node)->_M_valptr(); } + + _Self& + operator++() noexcept + { + _M_node = _M_node->_M_next; + return *this; + } + + _Self + operator++(int) noexcept + { + _Self __tmp(*this); + _M_node = _M_node->_M_next; + return __tmp; + } + + /** + * @brief Forward list iterator equality comparison. + */ + friend bool + operator==(const _Self& __x, const _Self& __y) noexcept + { return __x._M_node == __y._M_node; } + +#if __cpp_impl_three_way_comparison < 201907L + /** + * @brief Forward list iterator inequality comparison. + */ + friend bool + operator!=(const _Self& __x, const _Self& __y) noexcept + { return __x._M_node != __y._M_node; } +#endif + + _Self + _M_next() const noexcept + { + if (_M_node) + return _Fwd_list_iterator(_M_node->_M_next); + else + return _Fwd_list_iterator(nullptr); + } + + _Fwd_list_node_base* _M_node; + }; + + /** + * @brief A forward_list::const_iterator. + * + * All the functions are op overloads. + */ + template + struct _Fwd_list_const_iterator + { + typedef _Fwd_list_const_iterator<_Tp> _Self; + typedef const _Fwd_list_node<_Tp> _Node; + typedef _Fwd_list_iterator<_Tp> iterator; + + typedef _Tp value_type; + typedef const _Tp* pointer; + typedef const _Tp& reference; + typedef ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + _Fwd_list_const_iterator() noexcept + : _M_node() { } + + explicit + _Fwd_list_const_iterator(const _Fwd_list_node_base* __n) noexcept + : _M_node(__n) { } + + _Fwd_list_const_iterator(const iterator& __iter) noexcept + : _M_node(__iter._M_node) { } + + reference + operator*() const noexcept + { return *static_cast<_Node*>(this->_M_node)->_M_valptr(); } + + pointer + operator->() const noexcept + { return static_cast<_Node*>(this->_M_node)->_M_valptr(); } + + _Self& + operator++() noexcept + { + _M_node = _M_node->_M_next; + return *this; + } + + _Self + operator++(int) noexcept + { + _Self __tmp(*this); + _M_node = _M_node->_M_next; + return __tmp; + } + + /** + * @brief Forward list const_iterator equality comparison. + */ + friend bool + operator==(const _Self& __x, const _Self& __y) noexcept + { return __x._M_node == __y._M_node; } + +#if __cpp_impl_three_way_comparison < 201907L + /** + * @brief Forward list const_iterator inequality comparison. + */ + friend bool + operator!=(const _Self& __x, const _Self& __y) noexcept + { return __x._M_node != __y._M_node; } +#endif + + _Self + _M_next() const noexcept + { + if (this->_M_node) + return _Fwd_list_const_iterator(_M_node->_M_next); + else + return _Fwd_list_const_iterator(nullptr); + } + + const _Fwd_list_node_base* _M_node; + }; + + /** + * @brief Base class for %forward_list. + */ + template + struct _Fwd_list_base + { + protected: + typedef __alloc_rebind<_Alloc, _Fwd_list_node<_Tp>> _Node_alloc_type; + typedef __gnu_cxx::__alloc_traits<_Node_alloc_type> _Node_alloc_traits; + + struct _Fwd_list_impl + : public _Node_alloc_type + { + _Fwd_list_node_base _M_head; + + _Fwd_list_impl() + noexcept(is_nothrow_default_constructible<_Node_alloc_type>::value) + : _Node_alloc_type(), _M_head() + { } + + _Fwd_list_impl(_Fwd_list_impl&&) = default; + + _Fwd_list_impl(_Fwd_list_impl&& __fl, _Node_alloc_type&& __a) + : _Node_alloc_type(std::move(__a)), _M_head(std::move(__fl._M_head)) + { } + + _Fwd_list_impl(_Node_alloc_type&& __a) + : _Node_alloc_type(std::move(__a)), _M_head() + { } + }; + + _Fwd_list_impl _M_impl; + + public: + typedef _Fwd_list_iterator<_Tp> iterator; + typedef _Fwd_list_const_iterator<_Tp> const_iterator; + typedef _Fwd_list_node<_Tp> _Node; + + _Node_alloc_type& + _M_get_Node_allocator() noexcept + { return this->_M_impl; } + + const _Node_alloc_type& + _M_get_Node_allocator() const noexcept + { return this->_M_impl; } + + _Fwd_list_base() = default; + + _Fwd_list_base(_Node_alloc_type&& __a) + : _M_impl(std::move(__a)) { } + + // When allocators are always equal. + _Fwd_list_base(_Fwd_list_base&& __lst, _Node_alloc_type&& __a, + std::true_type) + : _M_impl(std::move(__lst._M_impl), std::move(__a)) + { } + + // When allocators are not always equal. + _Fwd_list_base(_Fwd_list_base&& __lst, _Node_alloc_type&& __a); + + _Fwd_list_base(_Fwd_list_base&&) = default; + + ~_Fwd_list_base() + { _M_erase_after(&_M_impl._M_head, nullptr); } + + protected: + _Node* + _M_get_node() + { + auto __ptr = _Node_alloc_traits::allocate(_M_get_Node_allocator(), 1); + return std::__to_address(__ptr); + } + + template + _Node* + _M_create_node(_Args&&... __args) + { + _Node* __node = this->_M_get_node(); + __try + { + ::new ((void*)__node) _Node; + _Node_alloc_traits::construct(_M_get_Node_allocator(), + __node->_M_valptr(), + std::forward<_Args>(__args)...); + } + __catch(...) + { + this->_M_put_node(__node); + __throw_exception_again; + } + return __node; + } + + template + _Fwd_list_node_base* + _M_insert_after(const_iterator __pos, _Args&&... __args); + + void + _M_put_node(_Node* __p) + { + typedef typename _Node_alloc_traits::pointer _Ptr; + auto __ptr = std::pointer_traits<_Ptr>::pointer_to(*__p); + _Node_alloc_traits::deallocate(_M_get_Node_allocator(), __ptr, 1); + } + + _Fwd_list_node_base* + _M_erase_after(_Fwd_list_node_base* __pos); + + _Fwd_list_node_base* + _M_erase_after(_Fwd_list_node_base* __pos, + _Fwd_list_node_base* __last); + }; + + /** + * @brief A standard container with linear time access to elements, + * and fixed time insertion/deletion at any point in the sequence. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Alloc Allocator type, defaults to allocator<_Tp>. + * + * Meets the requirements of a container, a + * sequence, including the + * optional sequence requirements with the + * %exception of @c at and @c operator[]. + * + * This is a @e singly @e linked %list. Traversal up the + * %list requires linear time, but adding and removing elements (or + * @e nodes) is done in constant time, regardless of where the + * change takes place. Unlike std::vector and std::deque, + * random-access iterators are not provided, so subscripting ( @c + * [] ) access is not allowed. For algorithms which only need + * sequential access, this lack makes no difference. + * + * Also unlike the other standard containers, std::forward_list provides + * specialized algorithms %unique to linked lists, such as + * splicing, sorting, and in-place reversal. + */ + template> + class forward_list : private _Fwd_list_base<_Tp, _Alloc> + { + static_assert(is_same::type, _Tp>::value, + "std::forward_list must have a non-const, non-volatile value_type"); +#if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::forward_list must have the same value_type as its allocator"); +#endif + + private: + typedef _Fwd_list_base<_Tp, _Alloc> _Base; + typedef _Fwd_list_node_base _Node_base; + typedef typename _Base::_Node _Node; + typedef typename _Base::_Node_alloc_type _Node_alloc_type; + typedef typename _Base::_Node_alloc_traits _Node_alloc_traits; + typedef allocator_traits<__alloc_rebind<_Alloc, _Tp>> _Alloc_traits; + + public: + // types: + typedef _Tp value_type; + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + + typedef typename _Base::iterator iterator; + typedef typename _Base::const_iterator const_iterator; + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + typedef _Alloc allocator_type; + + // 23.3.4.2 construct/copy/destroy: + + /** + * @brief Creates a %forward_list with no elements. + */ + forward_list() = default; + + /** + * @brief Creates a %forward_list with no elements. + * @param __al An allocator object. + */ + explicit + forward_list(const _Alloc& __al) noexcept + : _Base(_Node_alloc_type(__al)) + { } + + /** + * @brief Copy constructor with allocator argument. + * @param __list Input list to copy. + * @param __al An allocator object. + */ + forward_list(const forward_list& __list, const _Alloc& __al) + : _Base(_Node_alloc_type(__al)) + { _M_range_initialize(__list.begin(), __list.end()); } + + private: + forward_list(forward_list&& __list, _Node_alloc_type&& __al, + false_type) + : _Base(std::move(__list), std::move(__al)) + { + // If __list is not empty it means its allocator is not equal to __a, + // so we need to move from each element individually. + insert_after(cbefore_begin(), + std::__make_move_if_noexcept_iterator(__list.begin()), + std::__make_move_if_noexcept_iterator(__list.end())); + } + + forward_list(forward_list&& __list, _Node_alloc_type&& __al, + true_type) + noexcept + : _Base(std::move(__list), _Node_alloc_type(__al), true_type{}) + { } + + public: + /** + * @brief Move constructor with allocator argument. + * @param __list Input list to move. + * @param __al An allocator object. + */ + forward_list(forward_list&& __list, const _Alloc& __al) + noexcept(_Node_alloc_traits::_S_always_equal()) + : forward_list(std::move(__list), _Node_alloc_type(__al), + typename _Node_alloc_traits::is_always_equal{}) + { } + + /** + * @brief Creates a %forward_list with default constructed elements. + * @param __n The number of elements to initially create. + * @param __al An allocator object. + * + * This constructor creates the %forward_list with @a __n default + * constructed elements. + */ + explicit + forward_list(size_type __n, const _Alloc& __al = _Alloc()) + : _Base(_Node_alloc_type(__al)) + { _M_default_initialize(__n); } + + /** + * @brief Creates a %forward_list with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __al An allocator object. + * + * This constructor fills the %forward_list with @a __n copies of + * @a __value. + */ + forward_list(size_type __n, const _Tp& __value, + const _Alloc& __al = _Alloc()) + : _Base(_Node_alloc_type(__al)) + { _M_fill_initialize(__n, __value); } + + /** + * @brief Builds a %forward_list from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __al An allocator object. + * + * Create a %forward_list consisting of copies of the elements from + * [@a __first,@a __last). This is linear in N (where N is + * distance(@a __first,@a __last)). + */ + template> + forward_list(_InputIterator __first, _InputIterator __last, + const _Alloc& __al = _Alloc()) + : _Base(_Node_alloc_type(__al)) + { _M_range_initialize(__first, __last); } + + /** + * @brief The %forward_list copy constructor. + * @param __list A %forward_list of identical element and allocator + * types. + */ + forward_list(const forward_list& __list) + : _Base(_Node_alloc_traits::_S_select_on_copy( + __list._M_get_Node_allocator())) + { _M_range_initialize(__list.begin(), __list.end()); } + + /** + * @brief The %forward_list move constructor. + * @param __list A %forward_list of identical element and allocator + * types. + * + * The newly-created %forward_list contains the exact contents of the + * moved instance. The contents of the moved instance are a valid, but + * unspecified %forward_list. + */ + forward_list(forward_list&&) = default; + + /** + * @brief Builds a %forward_list from an initializer_list + * @param __il An initializer_list of value_type. + * @param __al An allocator object. + * + * Create a %forward_list consisting of copies of the elements + * in the initializer_list @a __il. This is linear in __il.size(). + */ + forward_list(std::initializer_list<_Tp> __il, + const _Alloc& __al = _Alloc()) + : _Base(_Node_alloc_type(__al)) + { _M_range_initialize(__il.begin(), __il.end()); } + + /** + * @brief The forward_list dtor. + */ + ~forward_list() noexcept + { } + + /** + * @brief The %forward_list assignment operator. + * @param __list A %forward_list of identical element and allocator + * types. + * + * All the elements of @a __list are copied. + * + * Whether the allocator is copied depends on the allocator traits. + */ + forward_list& + operator=(const forward_list& __list); + + /** + * @brief The %forward_list move assignment operator. + * @param __list A %forward_list of identical element and allocator + * types. + * + * The contents of @a __list are moved into this %forward_list + * (without copying, if the allocators permit it). + * + * Afterwards @a __list is a valid, but unspecified %forward_list + * + * Whether the allocator is moved depends on the allocator traits. + */ + forward_list& + operator=(forward_list&& __list) + noexcept(_Node_alloc_traits::_S_nothrow_move()) + { + constexpr bool __move_storage = + _Node_alloc_traits::_S_propagate_on_move_assign() + || _Node_alloc_traits::_S_always_equal(); + _M_move_assign(std::move(__list), __bool_constant<__move_storage>()); + return *this; + } + + /** + * @brief The %forward_list initializer list assignment operator. + * @param __il An initializer_list of value_type. + * + * Replace the contents of the %forward_list with copies of the + * elements in the initializer_list @a __il. This is linear in + * __il.size(). + */ + forward_list& + operator=(std::initializer_list<_Tp> __il) + { + assign(__il); + return *this; + } + + /** + * @brief Assigns a range to a %forward_list. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function fills a %forward_list with copies of the elements + * in the range [@a __first,@a __last). + * + * Note that the assignment completely changes the %forward_list and + * that the number of elements of the resulting %forward_list is the + * same as the number of elements assigned. + */ + template> + void + assign(_InputIterator __first, _InputIterator __last) + { + typedef is_assignable<_Tp, decltype(*__first)> __assignable; + _M_assign(__first, __last, __assignable()); + } + + /** + * @brief Assigns a given value to a %forward_list. + * @param __n Number of elements to be assigned. + * @param __val Value to be assigned. + * + * This function fills a %forward_list with @a __n copies of the + * given value. Note that the assignment completely changes the + * %forward_list, and that the resulting %forward_list has __n + * elements. + */ + void + assign(size_type __n, const _Tp& __val) + { _M_assign_n(__n, __val, is_copy_assignable<_Tp>()); } + + /** + * @brief Assigns an initializer_list to a %forward_list. + * @param __il An initializer_list of value_type. + * + * Replace the contents of the %forward_list with copies of the + * elements in the initializer_list @a __il. This is linear in + * il.size(). + */ + void + assign(std::initializer_list<_Tp> __il) + { assign(__il.begin(), __il.end()); } + + /// Get a copy of the memory allocation object. + allocator_type + get_allocator() const noexcept + { return allocator_type(this->_M_get_Node_allocator()); } + + // 23.3.4.3 iterators: + + /** + * Returns a read/write iterator that points before the first element + * in the %forward_list. Iteration is done in ordinary element order. + */ + iterator + before_begin() noexcept + { return iterator(&this->_M_impl._M_head); } + + /** + * Returns a read-only (constant) iterator that points before the + * first element in the %forward_list. Iteration is done in ordinary + * element order. + */ + const_iterator + before_begin() const noexcept + { return const_iterator(&this->_M_impl._M_head); } + + /** + * Returns a read/write iterator that points to the first element + * in the %forward_list. Iteration is done in ordinary element order. + */ + iterator + begin() noexcept + { return iterator(this->_M_impl._M_head._M_next); } + + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %forward_list. Iteration is done in ordinary + * element order. + */ + const_iterator + begin() const noexcept + { return const_iterator(this->_M_impl._M_head._M_next); } + + /** + * Returns a read/write iterator that points one past the last + * element in the %forward_list. Iteration is done in ordinary + * element order. + */ + iterator + end() noexcept + { return iterator(nullptr); } + + /** + * Returns a read-only iterator that points one past the last + * element in the %forward_list. Iteration is done in ordinary + * element order. + */ + const_iterator + end() const noexcept + { return const_iterator(nullptr); } + + /** + * Returns a read-only (constant) iterator that points to the + * first element in the %forward_list. Iteration is done in ordinary + * element order. + */ + const_iterator + cbegin() const noexcept + { return const_iterator(this->_M_impl._M_head._M_next); } + + /** + * Returns a read-only (constant) iterator that points before the + * first element in the %forward_list. Iteration is done in ordinary + * element order. + */ + const_iterator + cbefore_begin() const noexcept + { return const_iterator(&this->_M_impl._M_head); } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %forward_list. Iteration is done in + * ordinary element order. + */ + const_iterator + cend() const noexcept + { return const_iterator(nullptr); } + + /** + * Returns true if the %forward_list is empty. (Thus begin() would + * equal end().) + */ + _GLIBCXX_NODISCARD bool + empty() const noexcept + { return this->_M_impl._M_head._M_next == nullptr; } + + /** + * Returns the largest possible number of elements of %forward_list. + */ + size_type + max_size() const noexcept + { return _Node_alloc_traits::max_size(this->_M_get_Node_allocator()); } + + // 23.3.4.4 element access: + + /** + * Returns a read/write reference to the data at the first + * element of the %forward_list. + */ + reference + front() + { + _Node* __front = static_cast<_Node*>(this->_M_impl._M_head._M_next); + return *__front->_M_valptr(); + } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %forward_list. + */ + const_reference + front() const + { + _Node* __front = static_cast<_Node*>(this->_M_impl._M_head._M_next); + return *__front->_M_valptr(); + } + + // 23.3.4.5 modifiers: + + /** + * @brief Constructs object in %forward_list at the front of the + * list. + * @param __args Arguments. + * + * This function will insert an object of type Tp constructed + * with Tp(std::forward(args)...) at the front of the list + * Due to the nature of a %forward_list this operation can + * be done in constant time, and does not invalidate iterators + * and references. + */ + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_front(_Args&&... __args) + { + this->_M_insert_after(cbefore_begin(), + std::forward<_Args>(__args)...); +#if __cplusplus > 201402L + return front(); +#endif + } + + /** + * @brief Add data to the front of the %forward_list. + * @param __val Data to be added. + * + * This is a typical stack operation. The function creates an + * element at the front of the %forward_list and assigns the given + * data to it. Due to the nature of a %forward_list this operation + * can be done in constant time, and does not invalidate iterators + * and references. + */ + void + push_front(const _Tp& __val) + { this->_M_insert_after(cbefore_begin(), __val); } + + /** + * + */ + void + push_front(_Tp&& __val) + { this->_M_insert_after(cbefore_begin(), std::move(__val)); } + + /** + * @brief Removes first element. + * + * This is a typical stack operation. It shrinks the %forward_list + * by one. Due to the nature of a %forward_list this operation can + * be done in constant time, and only invalidates iterators/references + * to the element being removed. + * + * Note that no data is returned, and if the first element's data + * is needed, it should be retrieved before pop_front() is + * called. + */ + void + pop_front() + { this->_M_erase_after(&this->_M_impl._M_head); } + + /** + * @brief Constructs object in %forward_list after the specified + * iterator. + * @param __pos A const_iterator into the %forward_list. + * @param __args Arguments. + * @return An iterator that points to the inserted data. + * + * This function will insert an object of type T constructed + * with T(std::forward(args)...) after the specified + * location. Due to the nature of a %forward_list this operation can + * be done in constant time, and does not invalidate iterators + * and references. + */ + template + iterator + emplace_after(const_iterator __pos, _Args&&... __args) + { return iterator(this->_M_insert_after(__pos, + std::forward<_Args>(__args)...)); } + + /** + * @brief Inserts given value into %forward_list after specified + * iterator. + * @param __pos An iterator into the %forward_list. + * @param __val Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value after + * the specified location. Due to the nature of a %forward_list this + * operation can be done in constant time, and does not + * invalidate iterators and references. + */ + iterator + insert_after(const_iterator __pos, const _Tp& __val) + { return iterator(this->_M_insert_after(__pos, __val)); } + + /** + * + */ + iterator + insert_after(const_iterator __pos, _Tp&& __val) + { return iterator(this->_M_insert_after(__pos, std::move(__val))); } + + /** + * @brief Inserts a number of copies of given data into the + * %forward_list. + * @param __pos An iterator into the %forward_list. + * @param __n Number of elements to be inserted. + * @param __val Data to be inserted. + * @return An iterator pointing to the last inserted copy of + * @a val or @a pos if @a n == 0. + * + * This function will insert a specified number of copies of the + * given data after the location specified by @a pos. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + iterator + insert_after(const_iterator __pos, size_type __n, const _Tp& __val); + + /** + * @brief Inserts a range into the %forward_list. + * @param __pos An iterator into the %forward_list. + * @param __first An input iterator. + * @param __last An input iterator. + * @return An iterator pointing to the last inserted element or + * @a __pos if @a __first == @a __last. + * + * This function will insert copies of the data in the range + * [@a __first,@a __last) into the %forward_list after the + * location specified by @a __pos. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + template> + iterator + insert_after(const_iterator __pos, + _InputIterator __first, _InputIterator __last); + + /** + * @brief Inserts the contents of an initializer_list into + * %forward_list after the specified iterator. + * @param __pos An iterator into the %forward_list. + * @param __il An initializer_list of value_type. + * @return An iterator pointing to the last inserted element + * or @a __pos if @a __il is empty. + * + * This function will insert copies of the data in the + * initializer_list @a __il into the %forward_list before the location + * specified by @a __pos. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + iterator + insert_after(const_iterator __pos, std::initializer_list<_Tp> __il) + { return insert_after(__pos, __il.begin(), __il.end()); } + + /** + * @brief Removes the element pointed to by the iterator following + * @c pos. + * @param __pos Iterator pointing before element to be erased. + * @return An iterator pointing to the element following the one + * that was erased, or end() if no such element exists. + * + * This function will erase the element at the given position and + * thus shorten the %forward_list by one. + * + * Due to the nature of a %forward_list this operation can be done + * in constant time, and only invalidates iterators/references to + * the element being removed. The user is also cautioned that + * this function only erases the element, and that if the element + * is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + iterator + erase_after(const_iterator __pos) + { return iterator(this->_M_erase_after(const_cast<_Node_base*> + (__pos._M_node))); } + + /** + * @brief Remove a range of elements. + * @param __pos Iterator pointing before the first element to be + * erased. + * @param __last Iterator pointing to one past the last element to be + * erased. + * @return @ __last. + * + * This function will erase the elements in the range + * @a (__pos,__last) and shorten the %forward_list accordingly. + * + * This operation is linear time in the size of the range and only + * invalidates iterators/references to the element being removed. + * The user is also cautioned that this function only erases the + * elements, and that if the elements themselves are pointers, the + * pointed-to memory is not touched in any way. Managing the pointer + * is the user's responsibility. + */ + iterator + erase_after(const_iterator __pos, const_iterator __last) + { return iterator(this->_M_erase_after(const_cast<_Node_base*> + (__pos._M_node), + const_cast<_Node_base*> + (__last._M_node))); } + + /** + * @brief Swaps data with another %forward_list. + * @param __list A %forward_list of the same element and allocator + * types. + * + * This exchanges the elements between two lists in constant + * time. Note that the global std::swap() function is + * specialized such that std::swap(l1,l2) will feed to this + * function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(forward_list& __list) noexcept + { + std::swap(this->_M_impl._M_head._M_next, + __list._M_impl._M_head._M_next); + _Node_alloc_traits::_S_on_swap(this->_M_get_Node_allocator(), + __list._M_get_Node_allocator()); + } + + /** + * @brief Resizes the %forward_list to the specified number of + * elements. + * @param __sz Number of elements the %forward_list should contain. + * + * This function will %resize the %forward_list to the specified + * number of elements. If the number is smaller than the + * %forward_list's current number of elements the %forward_list + * is truncated, otherwise the %forward_list is extended and the + * new elements are default constructed. + */ + void + resize(size_type __sz); + + /** + * @brief Resizes the %forward_list to the specified number of + * elements. + * @param __sz Number of elements the %forward_list should contain. + * @param __val Data with which new elements should be populated. + * + * This function will %resize the %forward_list to the specified + * number of elements. If the number is smaller than the + * %forward_list's current number of elements the %forward_list + * is truncated, otherwise the %forward_list is extended and new + * elements are populated with given data. + */ + void + resize(size_type __sz, const value_type& __val); + + /** + * @brief Erases all the elements. + * + * Note that this function only erases + * the elements, and that if the elements themselves are + * pointers, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + void + clear() noexcept + { this->_M_erase_after(&this->_M_impl._M_head, nullptr); } + + // 23.3.4.6 forward_list operations: + + /** + * @brief Insert contents of another %forward_list. + * @param __pos Iterator referencing the element to insert after. + * @param __list Source list. + * + * The elements of @a list are inserted in constant time after + * the element referenced by @a pos. @a list becomes an empty + * list. + * + * Requires this != @a x. + */ + void + splice_after(const_iterator __pos, forward_list&& __list) noexcept + { + if (!__list.empty()) + _M_splice_after(__pos, __list.before_begin(), __list.end()); + } + + void + splice_after(const_iterator __pos, forward_list& __list) noexcept + { splice_after(__pos, std::move(__list)); } + + /** + * @brief Insert element from another %forward_list. + * @param __pos Iterator referencing the element to insert after. + * @param __list Source list. + * @param __i Iterator referencing the element before the element + * to move. + * + * Removes the element in list @a list referenced by @a i and + * inserts it into the current list after @a pos. + */ + void + splice_after(const_iterator __pos, forward_list&& __list, + const_iterator __i) noexcept; + + void + splice_after(const_iterator __pos, forward_list& __list, + const_iterator __i) noexcept + { splice_after(__pos, std::move(__list), __i); } + + /** + * @brief Insert range from another %forward_list. + * @param __pos Iterator referencing the element to insert after. + * @param __list Source list. + * @param __before Iterator referencing before the start of range + * in list. + * @param __last Iterator referencing the end of range in list. + * + * Removes elements in the range (__before,__last) and inserts them + * after @a __pos in constant time. + * + * Undefined if @a __pos is in (__before,__last). + * @{ + */ + void + splice_after(const_iterator __pos, forward_list&&, + const_iterator __before, const_iterator __last) noexcept + { _M_splice_after(__pos, __before, __last); } + + void + splice_after(const_iterator __pos, forward_list&, + const_iterator __before, const_iterator __last) noexcept + { _M_splice_after(__pos, __before, __last); } + // @} + + private: +#if __cplusplus > 201703L +# define __cpp_lib_list_remove_return_type 201806L + using __remove_return_type = size_type; +# define _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG \ + __attribute__((__abi_tag__("__cxx20"))) +#else + using __remove_return_type = void; +# define _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG +#endif + public: + + /** + * @brief Remove all elements equal to value. + * @param __val The value to remove. + * + * Removes every element in the list equal to @a __val. + * Remaining elements stay in list order. Note that this + * function only erases the elements, and that if the elements + * themselves are pointers, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG + __remove_return_type + remove(const _Tp& __val); + + /** + * @brief Remove all elements satisfying a predicate. + * @param __pred Unary predicate function or object. + * + * Removes every element in the list for which the predicate + * returns true. Remaining elements stay in list order. Note + * that this function only erases the elements, and that if the + * elements themselves are pointers, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + */ + template + __remove_return_type + remove_if(_Pred __pred); + + /** + * @brief Remove consecutive duplicate elements. + * + * For each consecutive set of elements with the same value, + * remove all but the first one. Remaining elements stay in + * list order. Note that this function only erases the + * elements, and that if the elements themselves are pointers, + * the pointed-to memory is not touched in any way. Managing + * the pointer is the user's responsibility. + */ + _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG + __remove_return_type + unique() + { return unique(std::equal_to<_Tp>()); } + +#undef _GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG + + /** + * @brief Remove consecutive elements satisfying a predicate. + * @param __binary_pred Binary predicate function or object. + * + * For each consecutive set of elements [first,last) that + * satisfy predicate(first,i) where i is an iterator in + * [first,last), remove all but the first one. Remaining + * elements stay in list order. Note that this function only + * erases the elements, and that if the elements themselves are + * pointers, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + template + __remove_return_type + unique(_BinPred __binary_pred); + + /** + * @brief Merge sorted lists. + * @param __list Sorted list to merge. + * + * Assumes that both @a list and this list are sorted according to + * operator<(). Merges elements of @a __list into this list in + * sorted order, leaving @a __list empty when complete. Elements in + * this list precede elements in @a __list that are equal. + */ + void + merge(forward_list&& __list) + { merge(std::move(__list), std::less<_Tp>()); } + + void + merge(forward_list& __list) + { merge(std::move(__list)); } + + /** + * @brief Merge sorted lists according to comparison function. + * @param __list Sorted list to merge. + * @param __comp Comparison function defining sort order. + * + * Assumes that both @a __list and this list are sorted according to + * comp. Merges elements of @a __list into this list + * in sorted order, leaving @a __list empty when complete. Elements + * in this list precede elements in @a __list that are equivalent + * according to comp(). + */ + template + void + merge(forward_list&& __list, _Comp __comp); + + template + void + merge(forward_list& __list, _Comp __comp) + { merge(std::move(__list), __comp); } + + /** + * @brief Sort the elements of the list. + * + * Sorts the elements of this list in NlogN time. Equivalent + * elements remain in list order. + */ + void + sort() + { sort(std::less<_Tp>()); } + + /** + * @brief Sort the forward_list using a comparison function. + * + * Sorts the elements of this list in NlogN time. Equivalent + * elements remain in list order. + */ + template + void + sort(_Comp __comp); + + /** + * @brief Reverse the elements in list. + * + * Reverse the order of elements in the list in linear time. + */ + void + reverse() noexcept + { this->_M_impl._M_head._M_reverse_after(); } + + private: + // Called by the range constructor to implement [23.3.4.2]/9 + template + void + _M_range_initialize(_InputIterator __first, _InputIterator __last); + + // Called by forward_list(n,v,a), and the range constructor when it + // turns out to be the same thing. + void + _M_fill_initialize(size_type __n, const value_type& __value); + + // Called by splice_after and insert_after. + iterator + _M_splice_after(const_iterator __pos, const_iterator __before, + const_iterator __last); + + // Called by forward_list(n). + void + _M_default_initialize(size_type __n); + + // Called by resize(sz). + void + _M_default_insert_after(const_iterator __pos, size_type __n); + + // Called by operator=(forward_list&&) + void + _M_move_assign(forward_list&& __list, true_type) noexcept + { + clear(); + this->_M_impl._M_head._M_next = __list._M_impl._M_head._M_next; + __list._M_impl._M_head._M_next = nullptr; + std::__alloc_on_move(this->_M_get_Node_allocator(), + __list._M_get_Node_allocator()); + } + + // Called by operator=(forward_list&&) + void + _M_move_assign(forward_list&& __list, false_type) + { + if (__list._M_get_Node_allocator() == this->_M_get_Node_allocator()) + _M_move_assign(std::move(__list), true_type()); + else + // The rvalue's allocator cannot be moved, or is not equal, + // so we need to individually move each element. + this->assign(std::make_move_iterator(__list.begin()), + std::make_move_iterator(__list.end())); + } + + // Called by assign(_InputIterator, _InputIterator) if _Tp is + // CopyAssignable. + template + void + _M_assign(_InputIterator __first, _InputIterator __last, true_type) + { + auto __prev = before_begin(); + auto __curr = begin(); + auto __end = end(); + while (__curr != __end && __first != __last) + { + *__curr = *__first; + ++__prev; + ++__curr; + ++__first; + } + if (__first != __last) + insert_after(__prev, __first, __last); + else if (__curr != __end) + erase_after(__prev, __end); + } + + // Called by assign(_InputIterator, _InputIterator) if _Tp is not + // CopyAssignable. + template + void + _M_assign(_InputIterator __first, _InputIterator __last, false_type) + { + clear(); + insert_after(cbefore_begin(), __first, __last); + } + + // Called by assign(size_type, const _Tp&) if Tp is CopyAssignable + void + _M_assign_n(size_type __n, const _Tp& __val, true_type) + { + auto __prev = before_begin(); + auto __curr = begin(); + auto __end = end(); + while (__curr != __end && __n > 0) + { + *__curr = __val; + ++__prev; + ++__curr; + --__n; + } + if (__n > 0) + insert_after(__prev, __n, __val); + else if (__curr != __end) + erase_after(__prev, __end); + } + + // Called by assign(size_type, const _Tp&) if Tp is non-CopyAssignable + void + _M_assign_n(size_type __n, const _Tp& __val, false_type) + { + clear(); + insert_after(cbefore_begin(), __n, __val); + } + }; + +#if __cpp_deduction_guides >= 201606 + template::value_type, + typename _Allocator = allocator<_ValT>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireAllocator<_Allocator>> + forward_list(_InputIterator, _InputIterator, _Allocator = _Allocator()) + -> forward_list<_ValT, _Allocator>; +#endif + + /** + * @brief Forward list equality comparison. + * @param __lx A %forward_list + * @param __ly A %forward_list of the same type as @a __lx. + * @return True iff the elements of the forward lists are equal. + * + * This is an equivalence relation. It is linear in the number of + * elements of the forward lists. Deques are considered equivalent + * if corresponding elements compare equal. + */ + template + bool + operator==(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly); + +#if __cpp_lib_three_way_comparison + /** + * @brief Forward list ordering relation. + * @param __x A `forward_list`. + * @param __y A `forward_list` of the same type as `__x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t<_Tp> + operator<=>(const forward_list<_Tp, _Alloc>& __x, + const forward_list<_Tp, _Alloc>& __y) + { + return std::lexicographical_compare_three_way(__x.begin(), __x.end(), + __y.begin(), __y.end(), + __detail::__synth3way); + } +#else + /** + * @brief Forward list ordering relation. + * @param __lx A %forward_list. + * @param __ly A %forward_list of the same type as @a __lx. + * @return True iff @a __lx is lexicographically less than @a __ly. + * + * This is a total ordering relation. It is linear in the number of + * elements of the forward lists. The elements must be comparable + * with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly) + { return std::lexicographical_compare(__lx.cbegin(), __lx.cend(), + __ly.cbegin(), __ly.cend()); } + + /// Based on operator== + template + inline bool + operator!=(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly) + { return !(__lx == __ly); } + + /// Based on operator< + template + inline bool + operator>(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly) + { return (__ly < __lx); } + + /// Based on operator< + template + inline bool + operator>=(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly) + { return !(__lx < __ly); } + + /// Based on operator< + template + inline bool + operator<=(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly) + { return !(__ly < __lx); } +#endif // three-way comparison + + /// See std::forward_list::swap(). + template + inline void + swap(forward_list<_Tp, _Alloc>& __lx, + forward_list<_Tp, _Alloc>& __ly) + noexcept(noexcept(__lx.swap(__ly))) + { __lx.swap(__ly); } + +_GLIBCXX_END_NAMESPACE_CONTAINER +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // _FORWARD_LIST_H diff --git a/resources/sources/avr-libstdcpp/include/bits/forward_list.tcc b/resources/sources/avr-libstdcpp/include/bits/forward_list.tcc new file mode 100644 index 000000000..c42bdc0fd --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/forward_list.tcc @@ -0,0 +1,517 @@ +// -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/forward_list.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{forward_list} + */ + +#ifndef _FORWARD_LIST_TCC +#define _FORWARD_LIST_TCC 1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + _Fwd_list_base<_Tp, _Alloc>:: + _Fwd_list_base(_Fwd_list_base&& __lst, _Node_alloc_type&& __a) + : _M_impl(std::move(__a)) + { + if (__lst._M_get_Node_allocator() == _M_get_Node_allocator()) + this->_M_impl._M_head = std::move(__lst._M_impl._M_head); + } + + template + template + _Fwd_list_node_base* + _Fwd_list_base<_Tp, _Alloc>:: + _M_insert_after(const_iterator __pos, _Args&&... __args) + { + _Fwd_list_node_base* __to + = const_cast<_Fwd_list_node_base*>(__pos._M_node); + _Node* __thing = _M_create_node(std::forward<_Args>(__args)...); + __thing->_M_next = __to->_M_next; + __to->_M_next = __thing; + return __to->_M_next; + } + + template + _Fwd_list_node_base* + _Fwd_list_base<_Tp, _Alloc>:: + _M_erase_after(_Fwd_list_node_base* __pos) + { + _Node* __curr = static_cast<_Node*>(__pos->_M_next); + __pos->_M_next = __curr->_M_next; + _Node_alloc_traits::destroy(_M_get_Node_allocator(), + __curr->_M_valptr()); + __curr->~_Node(); + _M_put_node(__curr); + return __pos->_M_next; + } + + template + _Fwd_list_node_base* + _Fwd_list_base<_Tp, _Alloc>:: + _M_erase_after(_Fwd_list_node_base* __pos, + _Fwd_list_node_base* __last) + { + _Node* __curr = static_cast<_Node*>(__pos->_M_next); + while (__curr != __last) + { + _Node* __temp = __curr; + __curr = static_cast<_Node*>(__curr->_M_next); + _Node_alloc_traits::destroy(_M_get_Node_allocator(), + __temp->_M_valptr()); + __temp->~_Node(); + _M_put_node(__temp); + } + __pos->_M_next = __last; + return __last; + } + + // Called by the range constructor to implement [23.3.4.2]/9 + template + template + void + forward_list<_Tp, _Alloc>:: + _M_range_initialize(_InputIterator __first, _InputIterator __last) + { + _Node_base* __to = &this->_M_impl._M_head; + for (; __first != __last; ++__first) + { + __to->_M_next = this->_M_create_node(*__first); + __to = __to->_M_next; + } + } + + // Called by forward_list(n,v,a). + template + void + forward_list<_Tp, _Alloc>:: + _M_fill_initialize(size_type __n, const value_type& __value) + { + _Node_base* __to = &this->_M_impl._M_head; + for (; __n; --__n) + { + __to->_M_next = this->_M_create_node(__value); + __to = __to->_M_next; + } + } + + template + void + forward_list<_Tp, _Alloc>:: + _M_default_initialize(size_type __n) + { + _Node_base* __to = &this->_M_impl._M_head; + for (; __n; --__n) + { + __to->_M_next = this->_M_create_node(); + __to = __to->_M_next; + } + } + + template + forward_list<_Tp, _Alloc>& + forward_list<_Tp, _Alloc>:: + operator=(const forward_list& __list) + { + if (std::__addressof(__list) != this) + { + if (_Node_alloc_traits::_S_propagate_on_copy_assign()) + { + auto& __this_alloc = this->_M_get_Node_allocator(); + auto& __that_alloc = __list._M_get_Node_allocator(); + if (!_Node_alloc_traits::_S_always_equal() + && __this_alloc != __that_alloc) + { + // replacement allocator cannot free existing storage + clear(); + } + std::__alloc_on_copy(__this_alloc, __that_alloc); + } + assign(__list.cbegin(), __list.cend()); + } + return *this; + } + + template + void + forward_list<_Tp, _Alloc>:: + _M_default_insert_after(const_iterator __pos, size_type __n) + { + const_iterator __saved_pos = __pos; + __try + { + for (; __n; --__n) + __pos = emplace_after(__pos); + } + __catch(...) + { + erase_after(__saved_pos, ++__pos); + __throw_exception_again; + } + } + + template + void + forward_list<_Tp, _Alloc>:: + resize(size_type __sz) + { + iterator __k = before_begin(); + + size_type __len = 0; + while (__k._M_next() != end() && __len < __sz) + { + ++__k; + ++__len; + } + if (__len == __sz) + erase_after(__k, end()); + else + _M_default_insert_after(__k, __sz - __len); + } + + template + void + forward_list<_Tp, _Alloc>:: + resize(size_type __sz, const value_type& __val) + { + iterator __k = before_begin(); + + size_type __len = 0; + while (__k._M_next() != end() && __len < __sz) + { + ++__k; + ++__len; + } + if (__len == __sz) + erase_after(__k, end()); + else + insert_after(__k, __sz - __len, __val); + } + + template + typename forward_list<_Tp, _Alloc>::iterator + forward_list<_Tp, _Alloc>:: + _M_splice_after(const_iterator __pos, + const_iterator __before, const_iterator __last) + { + _Node_base* __tmp = const_cast<_Node_base*>(__pos._M_node); + _Node_base* __b = const_cast<_Node_base*>(__before._M_node); + _Node_base* __end = __b; + + while (__end && __end->_M_next != __last._M_node) + __end = __end->_M_next; + + if (__b != __end) + return iterator(__tmp->_M_transfer_after(__b, __end)); + else + return iterator(__tmp); + } + + template + void + forward_list<_Tp, _Alloc>:: + splice_after(const_iterator __pos, forward_list&&, + const_iterator __i) noexcept + { + const_iterator __j = __i; + ++__j; + + if (__pos == __i || __pos == __j) + return; + + _Node_base* __tmp = const_cast<_Node_base*>(__pos._M_node); + __tmp->_M_transfer_after(const_cast<_Node_base*>(__i._M_node), + const_cast<_Node_base*>(__j._M_node)); + } + + template + typename forward_list<_Tp, _Alloc>::iterator + forward_list<_Tp, _Alloc>:: + insert_after(const_iterator __pos, size_type __n, const _Tp& __val) + { + if (__n) + { + forward_list __tmp(__n, __val, get_allocator()); + return _M_splice_after(__pos, __tmp.before_begin(), __tmp.end()); + } + else + return iterator(const_cast<_Node_base*>(__pos._M_node)); + } + + template + template + typename forward_list<_Tp, _Alloc>::iterator + forward_list<_Tp, _Alloc>:: + insert_after(const_iterator __pos, + _InputIterator __first, _InputIterator __last) + { + forward_list __tmp(__first, __last, get_allocator()); + if (!__tmp.empty()) + return _M_splice_after(__pos, __tmp.before_begin(), __tmp.end()); + else + return iterator(const_cast<_Node_base*>(__pos._M_node)); + } + +#if __cplusplus > 201703L +# define _GLIBCXX20_ONLY(__expr) __expr +#else +# define _GLIBCXX20_ONLY(__expr) +#endif + + template + auto + forward_list<_Tp, _Alloc>:: + remove(const _Tp& __val) -> __remove_return_type + { + size_type __removed __attribute__((__unused__)) = 0; + _Node_base* __curr = &this->_M_impl._M_head; + _Node_base* __extra = nullptr; + + while (_Node* __tmp = static_cast<_Node*>(__curr->_M_next)) + { + if (*__tmp->_M_valptr() == __val) + { + if (__tmp->_M_valptr() != std::__addressof(__val)) + { + this->_M_erase_after(__curr); + _GLIBCXX20_ONLY( __removed++ ); + continue; + } + else + __extra = __curr; + } + __curr = __curr->_M_next; + } + + if (__extra) + { + this->_M_erase_after(__extra); + _GLIBCXX20_ONLY( __removed++ ); + } + return _GLIBCXX20_ONLY( __removed ); + } + + template + template + auto + forward_list<_Tp, _Alloc>:: + remove_if(_Pred __pred) -> __remove_return_type + { + size_type __removed __attribute__((__unused__)) = 0; + _Node_base* __curr = &this->_M_impl._M_head; + while (_Node* __tmp = static_cast<_Node*>(__curr->_M_next)) + { + if (__pred(*__tmp->_M_valptr())) + { + this->_M_erase_after(__curr); + _GLIBCXX20_ONLY( __removed++ ); + } + else + __curr = __curr->_M_next; + } + return _GLIBCXX20_ONLY( __removed ); + } + + template + template + auto + forward_list<_Tp, _Alloc>:: + unique(_BinPred __binary_pred) -> __remove_return_type + { + iterator __first = begin(); + iterator __last = end(); + if (__first == __last) + return _GLIBCXX20_ONLY(0); + size_type __removed __attribute__((__unused__)) = 0; + iterator __next = __first; + while (++__next != __last) + { + if (__binary_pred(*__first, *__next)) + { + erase_after(__first); + _GLIBCXX20_ONLY( __removed++ ); + } + else + __first = __next; + __next = __first; + } + return _GLIBCXX20_ONLY( __removed ); + } + +#undef _GLIBCXX20_ONLY + + template + template + void + forward_list<_Tp, _Alloc>:: + merge(forward_list&& __list, _Comp __comp) + { + _Node_base* __node = &this->_M_impl._M_head; + while (__node->_M_next && __list._M_impl._M_head._M_next) + { + if (__comp(*static_cast<_Node*> + (__list._M_impl._M_head._M_next)->_M_valptr(), + *static_cast<_Node*> + (__node->_M_next)->_M_valptr())) + __node->_M_transfer_after(&__list._M_impl._M_head, + __list._M_impl._M_head._M_next); + __node = __node->_M_next; + } + + if (__list._M_impl._M_head._M_next) + *__node = std::move(__list._M_impl._M_head); + } + + template + bool + operator==(const forward_list<_Tp, _Alloc>& __lx, + const forward_list<_Tp, _Alloc>& __ly) + { + // We don't have size() so we need to walk through both lists + // making sure both iterators are valid. + auto __ix = __lx.cbegin(); + auto __iy = __ly.cbegin(); + while (__ix != __lx.cend() && __iy != __ly.cend()) + { + if (!(*__ix == *__iy)) + return false; + ++__ix; + ++__iy; + } + if (__ix == __lx.cend() && __iy == __ly.cend()) + return true; + else + return false; + } + + template + template + void + forward_list<_Tp, _Alloc>:: + sort(_Comp __comp) + { + // If `next' is nullptr, return immediately. + _Node* __list = static_cast<_Node*>(this->_M_impl._M_head._M_next); + if (!__list) + return; + + unsigned long __insize = 1; + + while (1) + { + _Node* __p = __list; + __list = nullptr; + _Node* __tail = nullptr; + + // Count number of merges we do in this pass. + unsigned long __nmerges = 0; + + while (__p) + { + ++__nmerges; + // There exists a merge to be done. + // Step `insize' places along from p. + _Node* __q = __p; + unsigned long __psize = 0; + for (unsigned long __i = 0; __i < __insize; ++__i) + { + ++__psize; + __q = static_cast<_Node*>(__q->_M_next); + if (!__q) + break; + } + + // If q hasn't fallen off end, we have two lists to merge. + unsigned long __qsize = __insize; + + // Now we have two lists; merge them. + while (__psize > 0 || (__qsize > 0 && __q)) + { + // Decide whether next node of merge comes from p or q. + _Node* __e; + if (__psize == 0) + { + // p is empty; e must come from q. + __e = __q; + __q = static_cast<_Node*>(__q->_M_next); + --__qsize; + } + else if (__qsize == 0 || !__q) + { + // q is empty; e must come from p. + __e = __p; + __p = static_cast<_Node*>(__p->_M_next); + --__psize; + } + else if (!__comp(*__q->_M_valptr(), *__p->_M_valptr())) + { + // First node of q is not lower; e must come from p. + __e = __p; + __p = static_cast<_Node*>(__p->_M_next); + --__psize; + } + else + { + // First node of q is lower; e must come from q. + __e = __q; + __q = static_cast<_Node*>(__q->_M_next); + --__qsize; + } + + // Add the next node to the merged list. + if (__tail) + __tail->_M_next = __e; + else + __list = __e; + __tail = __e; + } + + // Now p has stepped `insize' places along, and q has too. + __p = __q; + } + __tail->_M_next = nullptr; + + // If we have done only one merge, we're finished. + // Allow for nmerges == 0, the empty list case. + if (__nmerges <= 1) + { + this->_M_impl._M_head._M_next = __list; + return; + } + + // Otherwise repeat, merging lists twice the size. + __insize *= 2; + } + } + +_GLIBCXX_END_NAMESPACE_CONTAINER +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _FORWARD_LIST_TCC */ diff --git a/resources/sources/avr-libstdcpp/include/bits/functexcept.h b/resources/sources/avr-libstdcpp/include/bits/functexcept.h new file mode 100644 index 000000000..b7494f367 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/functexcept.h @@ -0,0 +1,114 @@ +// Function-Based Exception Support -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/functexcept.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{exception} + * + * This header provides support for -fno-exceptions. + */ + +// +// ISO C++ 14882: 19.1 Exception classes +// + +#ifndef _FUNCTEXCEPT_H +#define _FUNCTEXCEPT_H 1 + +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Helper for exception objects in + void + __throw_bad_exception(void) __attribute__((__noreturn__)); + + // Helper for exception objects in + void + __throw_bad_alloc(void) __attribute__((__noreturn__)); + + // Helper for exception objects in + void + __throw_bad_cast(void) __attribute__((__noreturn__)); + + void + __throw_bad_typeid(void) __attribute__((__noreturn__)); + + // Helpers for exception objects in + void + __throw_logic_error(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_domain_error(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_invalid_argument(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_length_error(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_out_of_range(const char* __s = "") __attribute__((__noreturn__)); + + inline void __attribute__((__noreturn__)) __attribute__((always_inline)) + __throw_out_of_range_fmt(const char*, ...) + { __throw_out_of_range(); } + + void + __throw_runtime_error(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_range_error(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_overflow_error(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_underflow_error(const char* __s = "") __attribute__((__noreturn__)); + + // Helpers for exception objects in + void + __throw_system_error(int) __attribute__((__noreturn__)); + + // Helpers for exception objects in + void + __throw_bad_function_call() __attribute__((__noreturn__)); + + void + __throw_bad_optional_access() __attribute__((__noreturn__)); + + void + __throw_bad_variant_access(const char* __s = "") __attribute__((__noreturn__)); + + void + __throw_bad_any_cast() __attribute__((__noreturn__)); + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/functional_hash.h b/resources/sources/avr-libstdcpp/include/bits/functional_hash.h new file mode 100644 index 000000000..e50b047ff --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/functional_hash.h @@ -0,0 +1,280 @@ +// functional_hash.h header -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/functional_hash.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _FUNCTIONAL_HASH_H +#define _FUNCTIONAL_HASH_H 1 + +#pragma GCC system_header + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** @defgroup hashes Hashes + * @ingroup functors + * + * Hashing functors taking a variable type and returning a @c std::size_t. + * + * @{ + */ + + template + struct __hash_base + { + typedef _Result result_type _GLIBCXX17_DEPRECATED; + typedef _Arg argument_type _GLIBCXX17_DEPRECATED; + }; + + /// Primary class template hash. + template + struct hash; + + template + struct __poison_hash + { + static constexpr bool __enable_hash_call = false; + private: + // Private rather than deleted to be non-trivially-copyable. + __poison_hash(__poison_hash&&); + ~__poison_hash(); + }; + + template + struct __poison_hash<_Tp, __void_t()(declval<_Tp>()))>> + { + static constexpr bool __enable_hash_call = true; + }; + + // Helper struct for SFINAE-poisoning non-enum types. + template::value> + struct __hash_enum + { + private: + // Private rather than deleted to be non-trivially-copyable. + __hash_enum(__hash_enum&&); + ~__hash_enum(); + }; + + // Helper struct for hash with enum types. + template + struct __hash_enum<_Tp, true> : public __hash_base + { + size_t + operator()(_Tp __val) const noexcept + { + using __type = typename underlying_type<_Tp>::type; + return hash<__type>{}(static_cast<__type>(__val)); + } + }; + + /// Primary class template hash, usable for enum types only. + // Use with non-enum types still SFINAES. + template + struct hash : __hash_enum<_Tp> + { }; + + /// Partial specializations for pointer types. + template + struct hash<_Tp*> : public __hash_base + { + size_t + operator()(_Tp* __p) const noexcept + { return reinterpret_cast(__p); } + }; + + // Explicit specializations for integer types. +#define _Cxx_hashtable_define_trivial_hash(_Tp) \ + template<> \ + struct hash<_Tp> : public __hash_base \ + { \ + size_t \ + operator()(_Tp __val) const noexcept \ + { return static_cast(__val); } \ + }; + + /// Explicit specialization for bool. + _Cxx_hashtable_define_trivial_hash(bool) + + /// Explicit specialization for char. + _Cxx_hashtable_define_trivial_hash(char) + + /// Explicit specialization for signed char. + _Cxx_hashtable_define_trivial_hash(signed char) + + /// Explicit specialization for unsigned char. + _Cxx_hashtable_define_trivial_hash(unsigned char) + + /// Explicit specialization for wchar_t. + _Cxx_hashtable_define_trivial_hash(wchar_t) + +#ifdef _GLIBCXX_USE_CHAR8_T + /// Explicit specialization for char8_t. + _Cxx_hashtable_define_trivial_hash(char8_t) +#endif + + /// Explicit specialization for char16_t. + _Cxx_hashtable_define_trivial_hash(char16_t) + + /// Explicit specialization for char32_t. + _Cxx_hashtable_define_trivial_hash(char32_t) + + /// Explicit specialization for short. + _Cxx_hashtable_define_trivial_hash(short) + + /// Explicit specialization for int. + _Cxx_hashtable_define_trivial_hash(int) + + /// Explicit specialization for long. + _Cxx_hashtable_define_trivial_hash(long) + + /// Explicit specialization for long long. + _Cxx_hashtable_define_trivial_hash(long long) + + /// Explicit specialization for unsigned short. + _Cxx_hashtable_define_trivial_hash(unsigned short) + + /// Explicit specialization for unsigned int. + _Cxx_hashtable_define_trivial_hash(unsigned int) + + /// Explicit specialization for unsigned long. + _Cxx_hashtable_define_trivial_hash(unsigned long) + + /// Explicit specialization for unsigned long long. + _Cxx_hashtable_define_trivial_hash(unsigned long long) + +#ifdef __GLIBCXX_TYPE_INT_N_0 + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_0) + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_0 unsigned) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_1 + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_1) + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_1 unsigned) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_2 + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_2) + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_2 unsigned) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_3 + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_3) + _Cxx_hashtable_define_trivial_hash(__GLIBCXX_TYPE_INT_N_3 unsigned) +#endif + +#undef _Cxx_hashtable_define_trivial_hash + + struct _Hash_impl + { + static size_t + hash(const void* __ptr, size_t __clength, + size_t __seed = static_cast(0xc70f6907UL)) + { return _Hash_bytes(__ptr, __clength, __seed); } + + template + static size_t + hash(const _Tp& __val) + { return hash(&__val, sizeof(__val)); } + + template + static size_t + __hash_combine(const _Tp& __val, size_t __hash) + { return hash(&__val, sizeof(__val), __hash); } + }; + + // A hash function similar to FNV-1a (see PR59406 for how it differs). + struct _Fnv_hash_impl + { + static size_t + hash(const void* __ptr, size_t __clength, + size_t __seed = static_cast(2166136261UL)) + { return _Fnv_hash_bytes(__ptr, __clength, __seed); } + + template + static size_t + hash(const _Tp& __val) + { return hash(&__val, sizeof(__val)); } + + template + static size_t + __hash_combine(const _Tp& __val, size_t __hash) + { return hash(&__val, sizeof(__val), __hash); } + }; + + /// Specialization for float. + template<> + struct hash : public __hash_base + { + size_t + operator()(float __val) const noexcept + { + // 0 and -0 both hash to zero. + return __val != 0.0f ? std::_Hash_impl::hash(__val) : 0; + } + }; + + /// Specialization for double. + template<> + struct hash : public __hash_base + { + size_t + operator()(double __val) const noexcept + { + // 0 and -0 both hash to zero. + return __val != 0.0 ? std::_Hash_impl::hash(__val) : 0; + } + }; + +#if __cplusplus >= 201703L + template<> + struct hash : public __hash_base + { + size_t + operator()(nullptr_t) const noexcept + { return 0; } + }; +#endif + + // @} group hashes + + // Hint about performance of hash functor. If not fast the hash-based + // containers will cache the hash code. + // Default behavior is to consider that hashers are fast unless specified + // otherwise. + template + struct __is_fast_hash : public std::true_type + { }; + + template<> + struct __is_fast_hash> : public std::false_type + { }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // _FUNCTIONAL_HASH_H diff --git a/resources/sources/avr-libstdcpp/include/bits/gslice.h b/resources/sources/avr-libstdcpp/include/bits/gslice.h new file mode 100644 index 000000000..b252c3c1f --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/gslice.h @@ -0,0 +1,185 @@ +// The template and inlines for the -*- C++ -*- gslice class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/gslice.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _GSLICE_H +#define _GSLICE_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup numeric_arrays + * @{ + */ + + /** + * @brief Class defining multi-dimensional subset of an array. + * + * The slice class represents a multi-dimensional subset of an array, + * specified by three parameter sets: start offset, size array, and stride + * array. The start offset is the index of the first element of the array + * that is part of the subset. The size and stride array describe each + * dimension of the slice. Size is the number of elements in that + * dimension, and stride is the distance in the array between successive + * elements in that dimension. Each dimension's size and stride is taken + * to begin at an array element described by the previous dimension. The + * size array and stride array must be the same size. + * + * For example, if you have offset==3, stride[0]==11, size[1]==3, + * stride[1]==3, then slice[0,0]==array[3], slice[0,1]==array[6], + * slice[0,2]==array[9], slice[1,0]==array[14], slice[1,1]==array[17], + * slice[1,2]==array[20]. + */ + class gslice + { + public: + /// Construct an empty slice. + gslice(); + + /** + * @brief Construct a slice. + * + * Constructs a slice with as many dimensions as the length of the @a l + * and @a s arrays. + * + * @param __o Offset in array of first element. + * @param __l Array of dimension lengths. + * @param __s Array of dimension strides between array elements. + */ + gslice(size_t __o, const valarray& __l, + const valarray& __s); + + // XXX: the IS says the copy-ctor and copy-assignment operators are + // synthesized by the compiler but they are just unsuitable + // for a ref-counted semantic + /// Copy constructor. + gslice(const gslice&); + + /// Destructor. + ~gslice(); + + // XXX: See the note above. + /// Assignment operator. + gslice& operator=(const gslice&); + + /// Return array offset of first slice element. + size_t start() const; + + /// Return array of sizes of slice dimensions. + valarray size() const; + + /// Return array of array strides for each dimension. + valarray stride() const; + + private: + struct _Indexer + { + size_t _M_count; + size_t _M_start; + valarray _M_size; + valarray _M_stride; + valarray _M_index; // Linear array of referenced indices + + _Indexer() + : _M_count(1), _M_start(0), _M_size(), _M_stride(), _M_index() {} + + _Indexer(size_t, const valarray&, + const valarray&); + + void + _M_increment_use() + { ++_M_count; } + + size_t + _M_decrement_use() + { return --_M_count; } + }; + + _Indexer* _M_index; + + template friend class valarray; + }; + + inline size_t + gslice::start() const + { return _M_index ? _M_index->_M_start : 0; } + + inline valarray + gslice::size() const + { return _M_index ? _M_index->_M_size : valarray(); } + + inline valarray + gslice::stride() const + { return _M_index ? _M_index->_M_stride : valarray(); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 543. valarray slice default constructor + inline + gslice::gslice() + : _M_index(new gslice::_Indexer()) {} + + inline + gslice::gslice(size_t __o, const valarray& __l, + const valarray& __s) + : _M_index(new gslice::_Indexer(__o, __l, __s)) {} + + inline + gslice::gslice(const gslice& __g) + : _M_index(__g._M_index) + { if (_M_index) _M_index->_M_increment_use(); } + + inline + gslice::~gslice() + { + if (_M_index && _M_index->_M_decrement_use() == 0) + delete _M_index; + } + + inline gslice& + gslice::operator=(const gslice& __g) + { + if (__g._M_index) + __g._M_index->_M_increment_use(); + if (_M_index && _M_index->_M_decrement_use() == 0) + delete _M_index; + _M_index = __g._M_index; + return *this; + } + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _GSLICE_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/gslice_array.h b/resources/sources/avr-libstdcpp/include/bits/gslice_array.h new file mode 100644 index 000000000..89fdda537 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/gslice_array.h @@ -0,0 +1,223 @@ +// The template and inlines for the -*- C++ -*- gslice_array class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/gslice_array.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _GSLICE_ARRAY_H +#define _GSLICE_ARRAY_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup numeric_arrays + * @{ + */ + + /** + * @brief Reference to multi-dimensional subset of an array. + * + * A gslice_array is a reference to the actual elements of an array + * specified by a gslice. The way to get a gslice_array is to call + * operator[](gslice) on a valarray. The returned gslice_array then + * permits carrying operations out on the referenced subset of elements in + * the original valarray. For example, operator+=(valarray) will add + * values to the subset of elements in the underlying valarray this + * gslice_array refers to. + * + * @param Tp Element type. + */ + template + class gslice_array + { + public: + typedef _Tp value_type; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 253. valarray helper functions are almost entirely useless + + /// Copy constructor. Both slices refer to the same underlying array. + gslice_array(const gslice_array&); + + /// Assignment operator. Assigns slice elements to corresponding + /// elements of @a a. + gslice_array& operator=(const gslice_array&); + + /// Assign slice elements to corresponding elements of @a v. + void operator=(const valarray<_Tp>&) const; + /// Multiply slice elements by corresponding elements of @a v. + void operator*=(const valarray<_Tp>&) const; + /// Divide slice elements by corresponding elements of @a v. + void operator/=(const valarray<_Tp>&) const; + /// Modulo slice elements by corresponding elements of @a v. + void operator%=(const valarray<_Tp>&) const; + /// Add corresponding elements of @a v to slice elements. + void operator+=(const valarray<_Tp>&) const; + /// Subtract corresponding elements of @a v from slice elements. + void operator-=(const valarray<_Tp>&) const; + /// Logical xor slice elements with corresponding elements of @a v. + void operator^=(const valarray<_Tp>&) const; + /// Logical and slice elements with corresponding elements of @a v. + void operator&=(const valarray<_Tp>&) const; + /// Logical or slice elements with corresponding elements of @a v. + void operator|=(const valarray<_Tp>&) const; + /// Left shift slice elements by corresponding elements of @a v. + void operator<<=(const valarray<_Tp>&) const; + /// Right shift slice elements by corresponding elements of @a v. + void operator>>=(const valarray<_Tp>&) const; + /// Assign all slice elements to @a t. + void operator=(const _Tp&) const; + + template + void operator=(const _Expr<_Dom, _Tp>&) const; + template + void operator*=(const _Expr<_Dom, _Tp>&) const; + template + void operator/=(const _Expr<_Dom, _Tp>&) const; + template + void operator%=(const _Expr<_Dom, _Tp>&) const; + template + void operator+=(const _Expr<_Dom, _Tp>&) const; + template + void operator-=(const _Expr<_Dom, _Tp>&) const; + template + void operator^=(const _Expr<_Dom, _Tp>&) const; + template + void operator&=(const _Expr<_Dom, _Tp>&) const; + template + void operator|=(const _Expr<_Dom, _Tp>&) const; + template + void operator<<=(const _Expr<_Dom, _Tp>&) const; + template + void operator>>=(const _Expr<_Dom, _Tp>&) const; + + private: + _Array<_Tp> _M_array; + const valarray& _M_index; + + friend class valarray<_Tp>; + + gslice_array(_Array<_Tp>, const valarray&); + +#if __cplusplus < 201103L + // not implemented + gslice_array(); +#else + public: + gslice_array() = delete; +#endif + }; + + template + inline + gslice_array<_Tp>::gslice_array(_Array<_Tp> __a, + const valarray& __i) + : _M_array(__a), _M_index(__i) {} + + template + inline + gslice_array<_Tp>::gslice_array(const gslice_array<_Tp>& __a) + : _M_array(__a._M_array), _M_index(__a._M_index) {} + + template + inline gslice_array<_Tp>& + gslice_array<_Tp>::operator=(const gslice_array<_Tp>& __a) + { + std::__valarray_copy(_Array<_Tp>(__a._M_array), + _Array(__a._M_index), _M_index.size(), + _M_array, _Array(_M_index)); + return *this; + } + + template + inline void + gslice_array<_Tp>::operator=(const _Tp& __t) const + { + std::__valarray_fill(_M_array, _Array(_M_index), + _M_index.size(), __t); + } + + template + inline void + gslice_array<_Tp>::operator=(const valarray<_Tp>& __v) const + { + std::__valarray_copy(_Array<_Tp>(__v), __v.size(), + _M_array, _Array(_M_index)); + } + + template + template + inline void + gslice_array<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e) const + { + std::__valarray_copy (__e, _M_index.size(), _M_array, + _Array(_M_index)); + } + +#undef _DEFINE_VALARRAY_OPERATOR +#define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ + template \ + inline void \ + gslice_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ + { \ + _Array_augmented_##_Name(_M_array, _Array(_M_index), \ + _Array<_Tp>(__v), __v.size()); \ + } \ + \ + template \ + template \ + inline void \ + gslice_array<_Tp>::operator _Op##= (const _Expr<_Dom, _Tp>& __e) const\ + { \ + _Array_augmented_##_Name(_M_array, _Array(_M_index), __e,\ + _M_index.size()); \ + } + +_DEFINE_VALARRAY_OPERATOR(*, __multiplies) +_DEFINE_VALARRAY_OPERATOR(/, __divides) +_DEFINE_VALARRAY_OPERATOR(%, __modulus) +_DEFINE_VALARRAY_OPERATOR(+, __plus) +_DEFINE_VALARRAY_OPERATOR(-, __minus) +_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) +_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) +_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) +_DEFINE_VALARRAY_OPERATOR(<<, __shift_left) +_DEFINE_VALARRAY_OPERATOR(>>, __shift_right) + +#undef _DEFINE_VALARRAY_OPERATOR + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _GSLICE_ARRAY_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/hash_bytes.h b/resources/sources/avr-libstdcpp/include/bits/hash_bytes.h new file mode 100644 index 000000000..8d9c9eb24 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/hash_bytes.h @@ -0,0 +1,59 @@ +// Declarations for hash functions. -*- C++ -*- + +// Copyright (C) 2010-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/hash_bytes.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _HASH_BYTES_H +#define _HASH_BYTES_H 1 + +#pragma GCC system_header + +#include + +namespace std +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Hash function implementation for the nontrivial specialization. + // All of them are based on a primitive that hashes a pointer to a + // byte array. The actual hash algorithm is not guaranteed to stay + // the same from release to release -- it may be updated or tuned to + // improve hash quality or speed. + size_t + _Hash_bytes(const void* __ptr, size_t __len, size_t __seed); + + // A similar hash primitive, using the FNV hash algorithm. This + // algorithm is guaranteed to stay the same from release to release. + // (although it might not produce the same values on different + // machines.) + size_t + _Fnv_hash_bytes(const void* __ptr, size_t __len, size_t __seed); + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/hashtable.h b/resources/sources/avr-libstdcpp/include/bits/hashtable.h new file mode 100644 index 000000000..b00319a66 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/hashtable.h @@ -0,0 +1,2228 @@ +// hashtable.h header -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/hashtable.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{unordered_map, unordered_set} + */ + +#ifndef _HASHTABLE_H +#define _HASHTABLE_H 1 + +#pragma GCC system_header + +#include +#if __cplusplus > 201402L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + using __cache_default + = __not_<__and_, + // Mandatory to have erase not throwing. + __is_nothrow_invocable>>; + + /** + * Primary class template _Hashtable. + * + * @ingroup hashtable-detail + * + * @tparam _Value CopyConstructible type. + * + * @tparam _Key CopyConstructible type. + * + * @tparam _Alloc An allocator type + * ([lib.allocator.requirements]) whose _Alloc::value_type is + * _Value. As a conforming extension, we allow for + * _Alloc::value_type != _Value. + * + * @tparam _ExtractKey Function object that takes an object of type + * _Value and returns a value of type _Key. + * + * @tparam _Equal Function object that takes two objects of type k + * and returns a bool-like value that is true if the two objects + * are considered equal. + * + * @tparam _H1 The hash function. A unary function object with + * argument type _Key and result type size_t. Return values should + * be distributed over the entire range [0, numeric_limits:::max()]. + * + * @tparam _H2 The range-hashing function (in the terminology of + * Tavori and Dreizin). A binary function object whose argument + * types and result type are all size_t. Given arguments r and N, + * the return value is in the range [0, N). + * + * @tparam _Hash The ranged hash function (Tavori and Dreizin). A + * binary function whose argument types are _Key and size_t and + * whose result type is size_t. Given arguments k and N, the + * return value is in the range [0, N). Default: hash(k, N) = + * h2(h1(k), N). If _Hash is anything other than the default, _H1 + * and _H2 are ignored. + * + * @tparam _RehashPolicy Policy class with three members, all of + * which govern the bucket count. _M_next_bkt(n) returns a bucket + * count no smaller than n. _M_bkt_for_elements(n) returns a + * bucket count appropriate for an element count of n. + * _M_need_rehash(n_bkt, n_elt, n_ins) determines whether, if the + * current bucket count is n_bkt and the current element count is + * n_elt, we need to increase the bucket count. If so, returns + * make_pair(true, n), where n is the new bucket count. If not, + * returns make_pair(false, ) + * + * @tparam _Traits Compile-time class with three boolean + * std::integral_constant members: __cache_hash_code, __constant_iterators, + * __unique_keys. + * + * Each _Hashtable data structure has: + * + * - _Bucket[] _M_buckets + * - _Hash_node_base _M_before_begin + * - size_type _M_bucket_count + * - size_type _M_element_count + * + * with _Bucket being _Hash_node* and _Hash_node containing: + * + * - _Hash_node* _M_next + * - Tp _M_value + * - size_t _M_hash_code if cache_hash_code is true + * + * In terms of Standard containers the hashtable is like the aggregation of: + * + * - std::forward_list<_Node> containing the elements + * - std::vector::iterator> representing the buckets + * + * The non-empty buckets contain the node before the first node in the + * bucket. This design makes it possible to implement something like a + * std::forward_list::insert_after on container insertion and + * std::forward_list::erase_after on container erase + * calls. _M_before_begin is equivalent to + * std::forward_list::before_begin. Empty buckets contain + * nullptr. Note that one of the non-empty buckets contains + * &_M_before_begin which is not a dereferenceable node so the + * node pointer in a bucket shall never be dereferenced, only its + * next node can be. + * + * Walking through a bucket's nodes requires a check on the hash code to + * see if each node is still in the bucket. Such a design assumes a + * quite efficient hash functor and is one of the reasons it is + * highly advisable to set __cache_hash_code to true. + * + * The container iterators are simply built from nodes. This way + * incrementing the iterator is perfectly efficient independent of + * how many empty buckets there are in the container. + * + * On insert we compute the element's hash code and use it to find the + * bucket index. If the element must be inserted in an empty bucket + * we add it at the beginning of the singly linked list and make the + * bucket point to _M_before_begin. The bucket that used to point to + * _M_before_begin, if any, is updated to point to its new before + * begin node. + * + * On erase, the simple iterator design requires using the hash + * functor to get the index of the bucket to update. For this + * reason, when __cache_hash_code is set to false the hash functor must + * not throw and this is enforced by a static assertion. + * + * Functionality is implemented by decomposition into base classes, + * where the derived _Hashtable class is used in _Map_base, + * _Insert, _Rehash_base, and _Equality base classes to access the + * "this" pointer. _Hashtable_base is used in the base classes as a + * non-recursive, fully-completed-type so that detailed nested type + * information, such as iterator type and node type, can be + * used. This is similar to the "Curiously Recurring Template + * Pattern" (CRTP) technique, but uses a reconstructed, not + * explicitly passed, template pattern. + * + * Base class templates are: + * - __detail::_Hashtable_base + * - __detail::_Map_base + * - __detail::_Insert + * - __detail::_Rehash_base + * - __detail::_Equality + */ + template + class _Hashtable + : public __detail::_Hashtable_base<_Key, _Value, _ExtractKey, _Equal, + _H1, _H2, _Hash, _Traits>, + public __detail::_Map_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>, + public __detail::_Insert<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>, + public __detail::_Rehash_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>, + public __detail::_Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>, + private __detail::_Hashtable_alloc< + __alloc_rebind<_Alloc, + __detail::_Hash_node<_Value, + _Traits::__hash_cached::value>>> + { + static_assert(is_same::type, _Value>::value, + "unordered container must have a non-const, non-volatile value_type"); +#if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same{}, + "unordered container must have the same value_type as its allocator"); +#endif + + using __traits_type = _Traits; + using __hash_cached = typename __traits_type::__hash_cached; + using __node_type = __detail::_Hash_node<_Value, __hash_cached::value>; + using __node_alloc_type = __alloc_rebind<_Alloc, __node_type>; + + using __hashtable_alloc = __detail::_Hashtable_alloc<__node_alloc_type>; + + using __value_alloc_traits = + typename __hashtable_alloc::__value_alloc_traits; + using __node_alloc_traits = + typename __hashtable_alloc::__node_alloc_traits; + using __node_base = typename __hashtable_alloc::__node_base; + using __bucket_type = typename __hashtable_alloc::__bucket_type; + + public: + typedef _Key key_type; + typedef _Value value_type; + typedef _Alloc allocator_type; + typedef _Equal key_equal; + + // mapped_type, if present, comes from _Map_base. + // hasher, if present, comes from _Hash_code_base/_Hashtable_base. + typedef typename __value_alloc_traits::pointer pointer; + typedef typename __value_alloc_traits::const_pointer const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + + private: + using __rehash_type = _RehashPolicy; + using __rehash_state = typename __rehash_type::_State; + + using __constant_iterators = typename __traits_type::__constant_iterators; + using __unique_keys = typename __traits_type::__unique_keys; + + using __key_extract = typename std::conditional< + __constant_iterators::value, + __detail::_Identity, + __detail::_Select1st>::type; + + using __hashtable_base = __detail:: + _Hashtable_base<_Key, _Value, _ExtractKey, + _Equal, _H1, _H2, _Hash, _Traits>; + + using __hash_code_base = typename __hashtable_base::__hash_code_base; + using __hash_code = typename __hashtable_base::__hash_code; + using __ireturn_type = typename __hashtable_base::__ireturn_type; + + using __map_base = __detail::_Map_base<_Key, _Value, _Alloc, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + + using __rehash_base = __detail::_Rehash_base<_Key, _Value, _Alloc, + _ExtractKey, _Equal, + _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + + using __eq_base = __detail::_Equality<_Key, _Value, _Alloc, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + + using __reuse_or_alloc_node_gen_t = + __detail::_ReuseOrAllocNode<__node_alloc_type>; + using __alloc_node_gen_t = + __detail::_AllocNode<__node_alloc_type>; + + // Simple RAII type for managing a node containing an element + struct _Scoped_node + { + // Take ownership of a node with a constructed element. + _Scoped_node(__node_type* __n, __hashtable_alloc* __h) + : _M_h(__h), _M_node(__n) { } + + // Allocate a node and construct an element within it. + template + _Scoped_node(__hashtable_alloc* __h, _Args&&... __args) + : _M_h(__h), + _M_node(__h->_M_allocate_node(std::forward<_Args>(__args)...)) + { } + + // Destroy element and deallocate node. + ~_Scoped_node() { if (_M_node) _M_h->_M_deallocate_node(_M_node); }; + + _Scoped_node(const _Scoped_node&) = delete; + _Scoped_node& operator=(const _Scoped_node&) = delete; + + __hashtable_alloc* _M_h; + __node_type* _M_node; + }; + + template + static constexpr + typename conditional::value, + const value_type&, value_type&&>::type + __fwd_value_for(value_type& __val) noexcept + { return std::move(__val); } + + // Metaprogramming for picking apart hash caching. + template + using __if_hash_cached = __or_<__not_<__hash_cached>, _Cond>; + + template + using __if_hash_not_cached = __or_<__hash_cached, _Cond>; + + // Compile-time diagnostics. + + // _Hash_code_base has everything protected, so use this derived type to + // access it. + struct __hash_code_base_access : __hash_code_base + { using __hash_code_base::_M_bucket_index; }; + + // Getting a bucket index from a node shall not throw because it is used + // in methods (erase, swap...) that shall not throw. + static_assert(noexcept(declval() + ._M_bucket_index((const __node_type*)nullptr, + (std::size_t)0)), + "Cache the hash code or qualify your functors involved" + " in hash code and bucket index computation with noexcept"); + + // When hash codes are cached local iterator inherits from H2 functor + // which must then be default constructible. + static_assert(__if_hash_cached>::value, + "Functor used to map hash code to bucket index" + " must be default constructible"); + + template + friend struct __detail::_Map_base; + + template + friend struct __detail::_Insert_base; + + template + friend struct __detail::_Insert; + + template + friend struct __detail::_Equality; + + public: + using size_type = typename __hashtable_base::size_type; + using difference_type = typename __hashtable_base::difference_type; + + using iterator = typename __hashtable_base::iterator; + using const_iterator = typename __hashtable_base::const_iterator; + + using local_iterator = typename __hashtable_base::local_iterator; + using const_local_iterator = typename __hashtable_base:: + const_local_iterator; + +#if __cplusplus > 201402L + using node_type = _Node_handle<_Key, _Value, __node_alloc_type>; + using insert_return_type = _Node_insert_return; +#endif + + private: + __bucket_type* _M_buckets = &_M_single_bucket; + size_type _M_bucket_count = 1; + __node_base _M_before_begin; + size_type _M_element_count = 0; + _RehashPolicy _M_rehash_policy; + + // A single bucket used when only need for 1 bucket. Especially + // interesting in move semantic to leave hashtable with only 1 bucket + // which is not allocated so that we can have those operations noexcept + // qualified. + // Note that we can't leave hashtable with 0 bucket without adding + // numerous checks in the code to avoid 0 modulus. + __bucket_type _M_single_bucket = nullptr; + + bool + _M_uses_single_bucket(__bucket_type* __bkts) const + { return __builtin_expect(__bkts == &_M_single_bucket, false); } + + bool + _M_uses_single_bucket() const + { return _M_uses_single_bucket(_M_buckets); } + + __hashtable_alloc& + _M_base_alloc() { return *this; } + + __bucket_type* + _M_allocate_buckets(size_type __bkt_count) + { + if (__builtin_expect(__bkt_count == 1, false)) + { + _M_single_bucket = nullptr; + return &_M_single_bucket; + } + + return __hashtable_alloc::_M_allocate_buckets(__bkt_count); + } + + void + _M_deallocate_buckets(__bucket_type* __bkts, size_type __bkt_count) + { + if (_M_uses_single_bucket(__bkts)) + return; + + __hashtable_alloc::_M_deallocate_buckets(__bkts, __bkt_count); + } + + void + _M_deallocate_buckets() + { _M_deallocate_buckets(_M_buckets, _M_bucket_count); } + + // Gets bucket begin, deals with the fact that non-empty buckets contain + // their before begin node. + __node_type* + _M_bucket_begin(size_type __bkt) const; + + __node_type* + _M_begin() const + { return static_cast<__node_type*>(_M_before_begin._M_nxt); } + + // Assign *this using another _Hashtable instance. Whether elements + // are copied or moved depends on the _Ht reference. + template + void + _M_assign_elements(_Ht&&); + + template + void + _M_assign(_Ht&&, const _NodeGenerator&); + + void + _M_move_assign(_Hashtable&&, true_type); + + void + _M_move_assign(_Hashtable&&, false_type); + + void + _M_reset() noexcept; + + _Hashtable(const _H1& __h1, const _H2& __h2, const _Hash& __h, + const _Equal& __eq, const _ExtractKey& __exk, + const allocator_type& __a) + : __hashtable_base(__exk, __h1, __h2, __h, __eq), + __hashtable_alloc(__node_alloc_type(__a)) + { } + + public: + // Constructor, destructor, assignment, swap + _Hashtable() = default; + _Hashtable(size_type __bkt_count_hint, + const _H1&, const _H2&, const _Hash&, + const _Equal&, const _ExtractKey&, + const allocator_type&); + + template + _Hashtable(_InputIterator __first, _InputIterator __last, + size_type __bkt_count_hint, + const _H1&, const _H2&, const _Hash&, + const _Equal&, const _ExtractKey&, + const allocator_type&); + + _Hashtable(const _Hashtable&); + + _Hashtable(_Hashtable&&) noexcept; + + _Hashtable(const _Hashtable&, const allocator_type&); + + _Hashtable(_Hashtable&&, const allocator_type&); + + // Use delegating constructors. + explicit + _Hashtable(const allocator_type& __a) + : __hashtable_alloc(__node_alloc_type(__a)) + { } + + explicit + _Hashtable(size_type __bkt_count_hint, + const _H1& __hf = _H1(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _Hashtable(__bkt_count_hint, __hf, _H2(), _Hash(), __eql, + __key_extract(), __a) + { } + + template + _Hashtable(_InputIterator __f, _InputIterator __l, + size_type __bkt_count_hint = 0, + const _H1& __hf = _H1(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _Hashtable(__f, __l, __bkt_count_hint, __hf, _H2(), _Hash(), __eql, + __key_extract(), __a) + { } + + _Hashtable(initializer_list __l, + size_type __bkt_count_hint = 0, + const _H1& __hf = _H1(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _Hashtable(__l.begin(), __l.end(), __bkt_count_hint, + __hf, _H2(), _Hash(), __eql, + __key_extract(), __a) + { } + + _Hashtable& + operator=(const _Hashtable& __ht); + + _Hashtable& + operator=(_Hashtable&& __ht) + noexcept(__node_alloc_traits::_S_nothrow_move() + && is_nothrow_move_assignable<_H1>::value + && is_nothrow_move_assignable<_Equal>::value) + { + constexpr bool __move_storage = + __node_alloc_traits::_S_propagate_on_move_assign() + || __node_alloc_traits::_S_always_equal(); + _M_move_assign(std::move(__ht), __bool_constant<__move_storage>()); + return *this; + } + + _Hashtable& + operator=(initializer_list __l) + { + __reuse_or_alloc_node_gen_t __roan(_M_begin(), *this); + _M_before_begin._M_nxt = nullptr; + clear(); + this->_M_insert_range(__l.begin(), __l.end(), __roan, __unique_keys()); + return *this; + } + + ~_Hashtable() noexcept; + + void + swap(_Hashtable&) + noexcept(__and_<__is_nothrow_swappable<_H1>, + __is_nothrow_swappable<_Equal>>::value); + + // Basic container operations + iterator + begin() noexcept + { return iterator(_M_begin()); } + + const_iterator + begin() const noexcept + { return const_iterator(_M_begin()); } + + iterator + end() noexcept + { return iterator(nullptr); } + + const_iterator + end() const noexcept + { return const_iterator(nullptr); } + + const_iterator + cbegin() const noexcept + { return const_iterator(_M_begin()); } + + const_iterator + cend() const noexcept + { return const_iterator(nullptr); } + + size_type + size() const noexcept + { return _M_element_count; } + + _GLIBCXX_NODISCARD bool + empty() const noexcept + { return size() == 0; } + + allocator_type + get_allocator() const noexcept + { return allocator_type(this->_M_node_allocator()); } + + size_type + max_size() const noexcept + { return __node_alloc_traits::max_size(this->_M_node_allocator()); } + + // Observers + key_equal + key_eq() const + { return this->_M_eq(); } + + // hash_function, if present, comes from _Hash_code_base. + + // Bucket operations + size_type + bucket_count() const noexcept + { return _M_bucket_count; } + + size_type + max_bucket_count() const noexcept + { return max_size(); } + + size_type + bucket_size(size_type __bkt) const + { return std::distance(begin(__bkt), end(__bkt)); } + + size_type + bucket(const key_type& __k) const + { return _M_bucket_index(__k, this->_M_hash_code(__k)); } + + local_iterator + begin(size_type __bkt) + { + return local_iterator(*this, _M_bucket_begin(__bkt), + __bkt, _M_bucket_count); + } + + local_iterator + end(size_type __bkt) + { return local_iterator(*this, nullptr, __bkt, _M_bucket_count); } + + const_local_iterator + begin(size_type __bkt) const + { + return const_local_iterator(*this, _M_bucket_begin(__bkt), + __bkt, _M_bucket_count); + } + + const_local_iterator + end(size_type __bkt) const + { return const_local_iterator(*this, nullptr, __bkt, _M_bucket_count); } + + // DR 691. + const_local_iterator + cbegin(size_type __bkt) const + { + return const_local_iterator(*this, _M_bucket_begin(__bkt), + __bkt, _M_bucket_count); + } + + const_local_iterator + cend(size_type __bkt) const + { return const_local_iterator(*this, nullptr, __bkt, _M_bucket_count); } + + float + load_factor() const noexcept + { + return static_cast(size()) / static_cast(bucket_count()); + } + + // max_load_factor, if present, comes from _Rehash_base. + + // Generalization of max_load_factor. Extension, not found in + // TR1. Only useful if _RehashPolicy is something other than + // the default. + const _RehashPolicy& + __rehash_policy() const + { return _M_rehash_policy; } + + void + __rehash_policy(const _RehashPolicy& __pol) + { _M_rehash_policy = __pol; } + + // Lookup. + iterator + find(const key_type& __k); + + const_iterator + find(const key_type& __k) const; + + size_type + count(const key_type& __k) const; + + std::pair + equal_range(const key_type& __k); + + std::pair + equal_range(const key_type& __k) const; + + protected: + // Bucket index computation helpers. + size_type + _M_bucket_index(__node_type* __n) const noexcept + { return __hash_code_base::_M_bucket_index(__n, _M_bucket_count); } + + size_type + _M_bucket_index(const key_type& __k, __hash_code __c) const + { return __hash_code_base::_M_bucket_index(__k, __c, _M_bucket_count); } + + // Find and insert helper functions and types + // Find the node before the one matching the criteria. + __node_base* + _M_find_before_node(size_type, const key_type&, __hash_code) const; + + __node_type* + _M_find_node(size_type __bkt, const key_type& __key, + __hash_code __c) const + { + __node_base* __before_n = _M_find_before_node(__bkt, __key, __c); + if (__before_n) + return static_cast<__node_type*>(__before_n->_M_nxt); + return nullptr; + } + + // Insert a node at the beginning of a bucket. + void + _M_insert_bucket_begin(size_type, __node_type*); + + // Remove the bucket first node + void + _M_remove_bucket_begin(size_type __bkt, __node_type* __next_n, + size_type __next_bkt); + + // Get the node before __n in the bucket __bkt + __node_base* + _M_get_previous_node(size_type __bkt, __node_base* __n); + + // Insert node __n with key __k and hash code __code, in bucket __bkt + // if no rehash (assumes no element with same key already present). + // Takes ownership of __n if insertion succeeds, throws otherwise. + iterator + _M_insert_unique_node(const key_type& __k, size_type __bkt, + __hash_code __code, __node_type* __n, + size_type __n_elt = 1); + + // Insert node __n with key __k and hash code __code. + // Takes ownership of __n if insertion succeeds, throws otherwise. + iterator + _M_insert_multi_node(__node_type* __hint, const key_type& __k, + __hash_code __code, __node_type* __n); + + template + std::pair + _M_emplace(true_type, _Args&&... __args); + + template + iterator + _M_emplace(false_type __uk, _Args&&... __args) + { return _M_emplace(cend(), __uk, std::forward<_Args>(__args)...); } + + // Emplace with hint, useless when keys are unique. + template + iterator + _M_emplace(const_iterator, true_type __uk, _Args&&... __args) + { return _M_emplace(__uk, std::forward<_Args>(__args)...).first; } + + template + iterator + _M_emplace(const_iterator, false_type, _Args&&... __args); + + template + std::pair + _M_insert(_Arg&&, const _NodeGenerator&, true_type, size_type = 1); + + template + iterator + _M_insert(_Arg&& __arg, const _NodeGenerator& __node_gen, + false_type __uk) + { + return _M_insert(cend(), std::forward<_Arg>(__arg), __node_gen, + __uk); + } + + // Insert with hint, not used when keys are unique. + template + iterator + _M_insert(const_iterator, _Arg&& __arg, + const _NodeGenerator& __node_gen, true_type __uk) + { + return + _M_insert(std::forward<_Arg>(__arg), __node_gen, __uk).first; + } + + // Insert with hint when keys are not unique. + template + iterator + _M_insert(const_iterator, _Arg&&, + const _NodeGenerator&, false_type); + + size_type + _M_erase(true_type, const key_type&); + + size_type + _M_erase(false_type, const key_type&); + + iterator + _M_erase(size_type __bkt, __node_base* __prev_n, __node_type* __n); + + public: + // Emplace + template + __ireturn_type + emplace(_Args&&... __args) + { return _M_emplace(__unique_keys(), std::forward<_Args>(__args)...); } + + template + iterator + emplace_hint(const_iterator __hint, _Args&&... __args) + { + return _M_emplace(__hint, __unique_keys(), + std::forward<_Args>(__args)...); + } + + // Insert member functions via inheritance. + + // Erase + iterator + erase(const_iterator); + + // LWG 2059. + iterator + erase(iterator __it) + { return erase(const_iterator(__it)); } + + size_type + erase(const key_type& __k) + { return _M_erase(__unique_keys(), __k); } + + iterator + erase(const_iterator, const_iterator); + + void + clear() noexcept; + + // Set number of buckets keeping it appropriate for container's number + // of elements. + void rehash(size_type __bkt_count); + + // DR 1189. + // reserve, if present, comes from _Rehash_base. + +#if __cplusplus > 201402L + /// Re-insert an extracted node into a container with unique keys. + insert_return_type + _M_reinsert_node(node_type&& __nh) + { + insert_return_type __ret; + if (__nh.empty()) + __ret.position = end(); + else + { + __glibcxx_assert(get_allocator() == __nh.get_allocator()); + + const key_type& __k = __nh._M_key(); + __hash_code __code = this->_M_hash_code(__k); + size_type __bkt = _M_bucket_index(__k, __code); + if (__node_type* __n = _M_find_node(__bkt, __k, __code)) + { + __ret.node = std::move(__nh); + __ret.position = iterator(__n); + __ret.inserted = false; + } + else + { + __ret.position + = _M_insert_unique_node(__k, __bkt, __code, __nh._M_ptr); + __nh._M_ptr = nullptr; + __ret.inserted = true; + } + } + return __ret; + } + + /// Re-insert an extracted node into a container with equivalent keys. + iterator + _M_reinsert_node_multi(const_iterator __hint, node_type&& __nh) + { + if (__nh.empty()) + return end(); + + __glibcxx_assert(get_allocator() == __nh.get_allocator()); + + const key_type& __k = __nh._M_key(); + auto __code = this->_M_hash_code(__k); + auto __ret + = _M_insert_multi_node(__hint._M_cur, __k, __code, __nh._M_ptr); + __nh._M_ptr = nullptr; + return __ret; + } + + private: + node_type + _M_extract_node(size_t __bkt, __node_base* __prev_n) + { + __node_type* __n = static_cast<__node_type*>(__prev_n->_M_nxt); + if (__prev_n == _M_buckets[__bkt]) + _M_remove_bucket_begin(__bkt, __n->_M_next(), + __n->_M_nxt ? _M_bucket_index(__n->_M_next()) : 0); + else if (__n->_M_nxt) + { + size_type __next_bkt = _M_bucket_index(__n->_M_next()); + if (__next_bkt != __bkt) + _M_buckets[__next_bkt] = __prev_n; + } + + __prev_n->_M_nxt = __n->_M_nxt; + __n->_M_nxt = nullptr; + --_M_element_count; + return { __n, this->_M_node_allocator() }; + } + + public: + // Extract a node. + node_type + extract(const_iterator __pos) + { + size_t __bkt = _M_bucket_index(__pos._M_cur); + return _M_extract_node(__bkt, + _M_get_previous_node(__bkt, __pos._M_cur)); + } + + /// Extract a node. + node_type + extract(const _Key& __k) + { + node_type __nh; + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + if (__node_base* __prev_node = _M_find_before_node(__bkt, __k, __code)) + __nh = _M_extract_node(__bkt, __prev_node); + return __nh; + } + + /// Merge from a compatible container into one with unique keys. + template + void + _M_merge_unique(_Compatible_Hashtable& __src) noexcept + { + static_assert(is_same_v, "Node types are compatible"); + __glibcxx_assert(get_allocator() == __src.get_allocator()); + + auto __n_elt = __src.size(); + for (auto __i = __src.begin(), __end = __src.end(); __i != __end;) + { + auto __pos = __i++; + const key_type& __k = this->_M_extract()(*__pos); + __hash_code __code = this->_M_hash_code(__k); + size_type __bkt = _M_bucket_index(__k, __code); + if (_M_find_node(__bkt, __k, __code) == nullptr) + { + auto __nh = __src.extract(__pos); + _M_insert_unique_node(__k, __bkt, __code, __nh._M_ptr, + __n_elt); + __nh._M_ptr = nullptr; + __n_elt = 1; + } + else if (__n_elt != 1) + --__n_elt; + } + } + + /// Merge from a compatible container into one with equivalent keys. + template + void + _M_merge_multi(_Compatible_Hashtable& __src) noexcept + { + static_assert(is_same_v, "Node types are compatible"); + __glibcxx_assert(get_allocator() == __src.get_allocator()); + + this->reserve(size() + __src.size()); + for (auto __i = __src.begin(), __end = __src.end(); __i != __end;) + _M_reinsert_node_multi(cend(), __src.extract(__i++)); + } +#endif // C++17 + + private: + // Helper rehash method used when keys are unique. + void _M_rehash_aux(size_type __bkt_count, true_type); + + // Helper rehash method used when keys can be non-unique. + void _M_rehash_aux(size_type __bkt_count, false_type); + + // Unconditionally change size of bucket array to n, restore + // hash policy state to __state on exception. + void _M_rehash(size_type __bkt_count, const __rehash_state& __state); + }; + + + // Definitions of class template _Hashtable's out-of-line member functions. + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_bucket_begin(size_type __bkt) const + -> __node_type* + { + __node_base* __n = _M_buckets[__bkt]; + return __n ? static_cast<__node_type*>(__n->_M_nxt) : nullptr; + } + + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _Hashtable(size_type __bkt_count_hint, + const _H1& __h1, const _H2& __h2, const _Hash& __h, + const _Equal& __eq, const _ExtractKey& __exk, + const allocator_type& __a) + : _Hashtable(__h1, __h2, __h, __eq, __exk, __a) + { + auto __bkt_count = _M_rehash_policy._M_next_bkt(__bkt_count_hint); + if (__bkt_count > _M_bucket_count) + { + _M_buckets = _M_allocate_buckets(__bkt_count); + _M_bucket_count = __bkt_count; + } + } + + template + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _Hashtable(_InputIterator __f, _InputIterator __l, + size_type __bkt_count_hint, + const _H1& __h1, const _H2& __h2, const _Hash& __h, + const _Equal& __eq, const _ExtractKey& __exk, + const allocator_type& __a) + : _Hashtable(__h1, __h2, __h, __eq, __exk, __a) + { + auto __nb_elems = __detail::__distance_fw(__f, __l); + auto __bkt_count = + _M_rehash_policy._M_next_bkt( + std::max(_M_rehash_policy._M_bkt_for_elements(__nb_elems), + __bkt_count_hint)); + + if (__bkt_count > _M_bucket_count) + { + _M_buckets = _M_allocate_buckets(__bkt_count); + _M_bucket_count = __bkt_count; + } + + for (; __f != __l; ++__f) + this->insert(*__f); + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + operator=(const _Hashtable& __ht) + -> _Hashtable& + { + if (&__ht == this) + return *this; + + if (__node_alloc_traits::_S_propagate_on_copy_assign()) + { + auto& __this_alloc = this->_M_node_allocator(); + auto& __that_alloc = __ht._M_node_allocator(); + if (!__node_alloc_traits::_S_always_equal() + && __this_alloc != __that_alloc) + { + // Replacement allocator cannot free existing storage. + this->_M_deallocate_nodes(_M_begin()); + _M_before_begin._M_nxt = nullptr; + _M_deallocate_buckets(); + _M_buckets = nullptr; + std::__alloc_on_copy(__this_alloc, __that_alloc); + __hashtable_base::operator=(__ht); + _M_bucket_count = __ht._M_bucket_count; + _M_element_count = __ht._M_element_count; + _M_rehash_policy = __ht._M_rehash_policy; + __alloc_node_gen_t __alloc_node_gen(*this); + __try + { + _M_assign(__ht, __alloc_node_gen); + } + __catch(...) + { + // _M_assign took care of deallocating all memory. Now we + // must make sure this instance remains in a usable state. + _M_reset(); + __throw_exception_again; + } + return *this; + } + std::__alloc_on_copy(__this_alloc, __that_alloc); + } + + // Reuse allocated buckets and nodes. + _M_assign_elements(__ht); + return *this; + } + + template + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_assign_elements(_Ht&& __ht) + { + __bucket_type* __former_buckets = nullptr; + std::size_t __former_bucket_count = _M_bucket_count; + const __rehash_state& __former_state = _M_rehash_policy._M_state(); + + if (_M_bucket_count != __ht._M_bucket_count) + { + __former_buckets = _M_buckets; + _M_buckets = _M_allocate_buckets(__ht._M_bucket_count); + _M_bucket_count = __ht._M_bucket_count; + } + else + __builtin_memset(_M_buckets, 0, + _M_bucket_count * sizeof(__bucket_type)); + + __try + { + __hashtable_base::operator=(std::forward<_Ht>(__ht)); + _M_element_count = __ht._M_element_count; + _M_rehash_policy = __ht._M_rehash_policy; + __reuse_or_alloc_node_gen_t __roan(_M_begin(), *this); + _M_before_begin._M_nxt = nullptr; + _M_assign(std::forward<_Ht>(__ht), __roan); + if (__former_buckets) + _M_deallocate_buckets(__former_buckets, __former_bucket_count); + } + __catch(...) + { + if (__former_buckets) + { + // Restore previous buckets. + _M_deallocate_buckets(); + _M_rehash_policy._M_reset(__former_state); + _M_buckets = __former_buckets; + _M_bucket_count = __former_bucket_count; + } + __builtin_memset(_M_buckets, 0, + _M_bucket_count * sizeof(__bucket_type)); + __throw_exception_again; + } + } + + template + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_assign(_Ht&& __ht, const _NodeGenerator& __node_gen) + { + __bucket_type* __buckets = nullptr; + if (!_M_buckets) + _M_buckets = __buckets = _M_allocate_buckets(_M_bucket_count); + + __try + { + if (!__ht._M_before_begin._M_nxt) + return; + + // First deal with the special first node pointed to by + // _M_before_begin. + __node_type* __ht_n = __ht._M_begin(); + __node_type* __this_n + = __node_gen(__fwd_value_for<_Ht>(__ht_n->_M_v())); + this->_M_copy_code(__this_n, __ht_n); + _M_before_begin._M_nxt = __this_n; + _M_buckets[_M_bucket_index(__this_n)] = &_M_before_begin; + + // Then deal with other nodes. + __node_base* __prev_n = __this_n; + for (__ht_n = __ht_n->_M_next(); __ht_n; __ht_n = __ht_n->_M_next()) + { + __this_n = __node_gen(__fwd_value_for<_Ht>(__ht_n->_M_v())); + __prev_n->_M_nxt = __this_n; + this->_M_copy_code(__this_n, __ht_n); + size_type __bkt = _M_bucket_index(__this_n); + if (!_M_buckets[__bkt]) + _M_buckets[__bkt] = __prev_n; + __prev_n = __this_n; + } + } + __catch(...) + { + clear(); + if (__buckets) + _M_deallocate_buckets(); + __throw_exception_again; + } + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_reset() noexcept + { + _M_rehash_policy._M_reset(); + _M_bucket_count = 1; + _M_single_bucket = nullptr; + _M_buckets = &_M_single_bucket; + _M_before_begin._M_nxt = nullptr; + _M_element_count = 0; + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_move_assign(_Hashtable&& __ht, true_type) + { + this->_M_deallocate_nodes(_M_begin()); + _M_deallocate_buckets(); + __hashtable_base::operator=(std::move(__ht)); + _M_rehash_policy = __ht._M_rehash_policy; + if (!__ht._M_uses_single_bucket()) + _M_buckets = __ht._M_buckets; + else + { + _M_buckets = &_M_single_bucket; + _M_single_bucket = __ht._M_single_bucket; + } + _M_bucket_count = __ht._M_bucket_count; + _M_before_begin._M_nxt = __ht._M_before_begin._M_nxt; + _M_element_count = __ht._M_element_count; + std::__alloc_on_move(this->_M_node_allocator(), __ht._M_node_allocator()); + + // Fix buckets containing the _M_before_begin pointers that can't be + // moved. + if (_M_begin()) + _M_buckets[_M_bucket_index(_M_begin())] = &_M_before_begin; + __ht._M_reset(); + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_move_assign(_Hashtable&& __ht, false_type) + { + if (__ht._M_node_allocator() == this->_M_node_allocator()) + _M_move_assign(std::move(__ht), true_type()); + else + { + // Can't move memory, move elements then. + _M_assign_elements(std::move(__ht)); + __ht.clear(); + } + } + + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _Hashtable(const _Hashtable& __ht) + : __hashtable_base(__ht), + __map_base(__ht), + __rehash_base(__ht), + __hashtable_alloc( + __node_alloc_traits::_S_select_on_copy(__ht._M_node_allocator())), + _M_buckets(nullptr), + _M_bucket_count(__ht._M_bucket_count), + _M_element_count(__ht._M_element_count), + _M_rehash_policy(__ht._M_rehash_policy) + { + __alloc_node_gen_t __alloc_node_gen(*this); + _M_assign(__ht, __alloc_node_gen); + } + + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _Hashtable(_Hashtable&& __ht) noexcept + : __hashtable_base(__ht), + __map_base(__ht), + __rehash_base(__ht), + __hashtable_alloc(std::move(__ht._M_base_alloc())), + _M_buckets(__ht._M_buckets), + _M_bucket_count(__ht._M_bucket_count), + _M_before_begin(__ht._M_before_begin._M_nxt), + _M_element_count(__ht._M_element_count), + _M_rehash_policy(__ht._M_rehash_policy) + { + // Update, if necessary, buckets if __ht is using its single bucket. + if (__ht._M_uses_single_bucket()) + { + _M_buckets = &_M_single_bucket; + _M_single_bucket = __ht._M_single_bucket; + } + + // Update, if necessary, bucket pointing to before begin that hasn't + // moved. + if (_M_begin()) + _M_buckets[_M_bucket_index(_M_begin())] = &_M_before_begin; + + __ht._M_reset(); + } + + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _Hashtable(const _Hashtable& __ht, const allocator_type& __a) + : __hashtable_base(__ht), + __map_base(__ht), + __rehash_base(__ht), + __hashtable_alloc(__node_alloc_type(__a)), + _M_buckets(), + _M_bucket_count(__ht._M_bucket_count), + _M_element_count(__ht._M_element_count), + _M_rehash_policy(__ht._M_rehash_policy) + { + __alloc_node_gen_t __alloc_node_gen(*this); + _M_assign(__ht, __alloc_node_gen); + } + + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _Hashtable(_Hashtable&& __ht, const allocator_type& __a) + : __hashtable_base(__ht), + __map_base(__ht), + __rehash_base(__ht), + __hashtable_alloc(__node_alloc_type(__a)), + _M_buckets(nullptr), + _M_bucket_count(__ht._M_bucket_count), + _M_element_count(__ht._M_element_count), + _M_rehash_policy(__ht._M_rehash_policy) + { + if (__ht._M_node_allocator() == this->_M_node_allocator()) + { + if (__ht._M_uses_single_bucket()) + { + _M_buckets = &_M_single_bucket; + _M_single_bucket = __ht._M_single_bucket; + } + else + _M_buckets = __ht._M_buckets; + + _M_before_begin._M_nxt = __ht._M_before_begin._M_nxt; + // Update, if necessary, bucket pointing to before begin that hasn't + // moved. + if (_M_begin()) + _M_buckets[_M_bucket_index(_M_begin())] = &_M_before_begin; + __ht._M_reset(); + } + else + { + __alloc_node_gen_t __alloc_gen(*this); + + using _Fwd_Ht = typename + conditional<__move_if_noexcept_cond::value, + const _Hashtable&, _Hashtable&&>::type; + _M_assign(std::forward<_Fwd_Ht>(__ht), __alloc_gen); + __ht.clear(); + } + } + + template + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + ~_Hashtable() noexcept + { + clear(); + _M_deallocate_buckets(); + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + swap(_Hashtable& __x) + noexcept(__and_<__is_nothrow_swappable<_H1>, + __is_nothrow_swappable<_Equal>>::value) + { + // The only base class with member variables is hash_code_base. + // We define _Hash_code_base::_M_swap because different + // specializations have different members. + this->_M_swap(__x); + + std::__alloc_on_swap(this->_M_node_allocator(), __x._M_node_allocator()); + std::swap(_M_rehash_policy, __x._M_rehash_policy); + + // Deal properly with potentially moved instances. + if (this->_M_uses_single_bucket()) + { + if (!__x._M_uses_single_bucket()) + { + _M_buckets = __x._M_buckets; + __x._M_buckets = &__x._M_single_bucket; + } + } + else if (__x._M_uses_single_bucket()) + { + __x._M_buckets = _M_buckets; + _M_buckets = &_M_single_bucket; + } + else + std::swap(_M_buckets, __x._M_buckets); + + std::swap(_M_bucket_count, __x._M_bucket_count); + std::swap(_M_before_begin._M_nxt, __x._M_before_begin._M_nxt); + std::swap(_M_element_count, __x._M_element_count); + std::swap(_M_single_bucket, __x._M_single_bucket); + + // Fix buckets containing the _M_before_begin pointers that can't be + // swapped. + if (_M_begin()) + _M_buckets[_M_bucket_index(_M_begin())] = &_M_before_begin; + + if (__x._M_begin()) + __x._M_buckets[__x._M_bucket_index(__x._M_begin())] + = &__x._M_before_begin; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + find(const key_type& __k) + -> iterator + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + __node_type* __p = _M_find_node(__bkt, __k, __code); + return __p ? iterator(__p) : end(); + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + find(const key_type& __k) const + -> const_iterator + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + __node_type* __p = _M_find_node(__bkt, __k, __code); + return __p ? const_iterator(__p) : end(); + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + count(const key_type& __k) const + -> size_type + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + __node_type* __p = _M_bucket_begin(__bkt); + if (!__p) + return 0; + + std::size_t __result = 0; + for (;; __p = __p->_M_next()) + { + if (this->_M_equals(__k, __code, __p)) + ++__result; + else if (__result) + // All equivalent values are next to each other, if we + // found a non-equivalent value after an equivalent one it + // means that we won't find any new equivalent value. + break; + if (!__p->_M_nxt || _M_bucket_index(__p->_M_next()) != __bkt) + break; + } + return __result; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + equal_range(const key_type& __k) + -> pair + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + __node_type* __p = _M_find_node(__bkt, __k, __code); + + if (__p) + { + __node_type* __p1 = __p->_M_next(); + while (__p1 && _M_bucket_index(__p1) == __bkt + && this->_M_equals(__k, __code, __p1)) + __p1 = __p1->_M_next(); + + return std::make_pair(iterator(__p), iterator(__p1)); + } + else + return std::make_pair(end(), end()); + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + equal_range(const key_type& __k) const + -> pair + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + __node_type* __p = _M_find_node(__bkt, __k, __code); + + if (__p) + { + __node_type* __p1 = __p->_M_next(); + while (__p1 && _M_bucket_index(__p1) == __bkt + && this->_M_equals(__k, __code, __p1)) + __p1 = __p1->_M_next(); + + return std::make_pair(const_iterator(__p), const_iterator(__p1)); + } + else + return std::make_pair(end(), end()); + } + + // Find the node whose key compares equal to k in the bucket bkt. + // Return nullptr if no node is found. + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_find_before_node(size_type __bkt, const key_type& __k, + __hash_code __code) const + -> __node_base* + { + __node_base* __prev_p = _M_buckets[__bkt]; + if (!__prev_p) + return nullptr; + + for (__node_type* __p = static_cast<__node_type*>(__prev_p->_M_nxt);; + __p = __p->_M_next()) + { + if (this->_M_equals(__k, __code, __p)) + return __prev_p; + + if (!__p->_M_nxt || _M_bucket_index(__p->_M_next()) != __bkt) + break; + __prev_p = __p; + } + return nullptr; + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_insert_bucket_begin(size_type __bkt, __node_type* __node) + { + if (_M_buckets[__bkt]) + { + // Bucket is not empty, we just need to insert the new node + // after the bucket before begin. + __node->_M_nxt = _M_buckets[__bkt]->_M_nxt; + _M_buckets[__bkt]->_M_nxt = __node; + } + else + { + // The bucket is empty, the new node is inserted at the + // beginning of the singly-linked list and the bucket will + // contain _M_before_begin pointer. + __node->_M_nxt = _M_before_begin._M_nxt; + _M_before_begin._M_nxt = __node; + if (__node->_M_nxt) + // We must update former begin bucket that is pointing to + // _M_before_begin. + _M_buckets[_M_bucket_index(__node->_M_next())] = __node; + _M_buckets[__bkt] = &_M_before_begin; + } + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_remove_bucket_begin(size_type __bkt, __node_type* __next, + size_type __next_bkt) + { + if (!__next || __next_bkt != __bkt) + { + // Bucket is now empty + // First update next bucket if any + if (__next) + _M_buckets[__next_bkt] = _M_buckets[__bkt]; + + // Second update before begin node if necessary + if (&_M_before_begin == _M_buckets[__bkt]) + _M_before_begin._M_nxt = __next; + _M_buckets[__bkt] = nullptr; + } + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_get_previous_node(size_type __bkt, __node_base* __n) + -> __node_base* + { + __node_base* __prev_n = _M_buckets[__bkt]; + while (__prev_n->_M_nxt != __n) + __prev_n = __prev_n->_M_nxt; + return __prev_n; + } + + template + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_emplace(true_type, _Args&&... __args) + -> pair + { + // First build the node to get access to the hash code + _Scoped_node __node { this, std::forward<_Args>(__args)... }; + const key_type& __k = this->_M_extract()(__node._M_node->_M_v()); + __hash_code __code = this->_M_hash_code(__k); + size_type __bkt = _M_bucket_index(__k, __code); + if (__node_type* __p = _M_find_node(__bkt, __k, __code)) + // There is already an equivalent node, no insertion + return std::make_pair(iterator(__p), false); + + // Insert the node + auto __pos = _M_insert_unique_node(__k, __bkt, __code, __node._M_node); + __node._M_node = nullptr; + return { __pos, true }; + } + + template + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_emplace(const_iterator __hint, false_type, _Args&&... __args) + -> iterator + { + // First build the node to get its hash code. + _Scoped_node __node { this, std::forward<_Args>(__args)... }; + const key_type& __k = this->_M_extract()(__node._M_node->_M_v()); + + __hash_code __code = this->_M_hash_code(__k); + auto __pos + = _M_insert_multi_node(__hint._M_cur, __k, __code, __node._M_node); + __node._M_node = nullptr; + return __pos; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_insert_unique_node(const key_type& __k, size_type __bkt, + __hash_code __code, __node_type* __node, + size_type __n_elt) + -> iterator + { + const __rehash_state& __saved_state = _M_rehash_policy._M_state(); + std::pair __do_rehash + = _M_rehash_policy._M_need_rehash(_M_bucket_count, _M_element_count, + __n_elt); + + if (__do_rehash.first) + { + _M_rehash(__do_rehash.second, __saved_state); + __bkt = _M_bucket_index(__k, __code); + } + + this->_M_store_code(__node, __code); + + // Always insert at the beginning of the bucket. + _M_insert_bucket_begin(__bkt, __node); + ++_M_element_count; + return iterator(__node); + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_insert_multi_node(__node_type* __hint, const key_type& __k, + __hash_code __code, __node_type* __node) + -> iterator + { + const __rehash_state& __saved_state = _M_rehash_policy._M_state(); + std::pair __do_rehash + = _M_rehash_policy._M_need_rehash(_M_bucket_count, _M_element_count, 1); + + if (__do_rehash.first) + _M_rehash(__do_rehash.second, __saved_state); + + this->_M_store_code(__node, __code); + size_type __bkt = _M_bucket_index(__k, __code); + + // Find the node before an equivalent one or use hint if it exists and + // if it is equivalent. + __node_base* __prev + = __builtin_expect(__hint != nullptr, false) + && this->_M_equals(__k, __code, __hint) + ? __hint + : _M_find_before_node(__bkt, __k, __code); + if (__prev) + { + // Insert after the node before the equivalent one. + __node->_M_nxt = __prev->_M_nxt; + __prev->_M_nxt = __node; + if (__builtin_expect(__prev == __hint, false)) + // hint might be the last bucket node, in this case we need to + // update next bucket. + if (__node->_M_nxt + && !this->_M_equals(__k, __code, __node->_M_next())) + { + size_type __next_bkt = _M_bucket_index(__node->_M_next()); + if (__next_bkt != __bkt) + _M_buckets[__next_bkt] = __node; + } + } + else + // The inserted node has no equivalent in the hashtable. We must + // insert the new node at the beginning of the bucket to preserve + // equivalent elements' relative positions. + _M_insert_bucket_begin(__bkt, __node); + ++_M_element_count; + return iterator(__node); + } + + // Insert v if no element with its key is already present. + template + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_insert(_Arg&& __v, const _NodeGenerator& __node_gen, true_type, + size_type __n_elt) + -> pair + { + const key_type& __k = this->_M_extract()(__v); + __hash_code __code = this->_M_hash_code(__k); + size_type __bkt = _M_bucket_index(__k, __code); + + if (__node_type* __node = _M_find_node(__bkt, __k, __code)) + return { iterator(__node), false }; + + _Scoped_node __node{ __node_gen(std::forward<_Arg>(__v)), this }; + auto __pos + = _M_insert_unique_node(__k, __bkt, __code, __node._M_node, __n_elt); + __node._M_node = nullptr; + return { __pos, true }; + } + + // Insert v unconditionally. + template + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_insert(const_iterator __hint, _Arg&& __v, + const _NodeGenerator& __node_gen, false_type) + -> iterator + { + // First compute the hash code so that we don't do anything if it + // throws. + __hash_code __code = this->_M_hash_code(this->_M_extract()(__v)); + + // Second allocate new node so that we don't rehash if it throws. + _Scoped_node __node{ __node_gen(std::forward<_Arg>(__v)), this }; + const key_type& __k = this->_M_extract()(__node._M_node->_M_v()); + auto __pos + = _M_insert_multi_node(__hint._M_cur, __k, __code, __node._M_node); + __node._M_node = nullptr; + return __pos; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + erase(const_iterator __it) + -> iterator + { + __node_type* __n = __it._M_cur; + std::size_t __bkt = _M_bucket_index(__n); + + // Look for previous node to unlink it from the erased one, this + // is why we need buckets to contain the before begin to make + // this search fast. + __node_base* __prev_n = _M_get_previous_node(__bkt, __n); + return _M_erase(__bkt, __prev_n, __n); + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_erase(size_type __bkt, __node_base* __prev_n, __node_type* __n) + -> iterator + { + if (__prev_n == _M_buckets[__bkt]) + _M_remove_bucket_begin(__bkt, __n->_M_next(), + __n->_M_nxt ? _M_bucket_index(__n->_M_next()) : 0); + else if (__n->_M_nxt) + { + size_type __next_bkt = _M_bucket_index(__n->_M_next()); + if (__next_bkt != __bkt) + _M_buckets[__next_bkt] = __prev_n; + } + + __prev_n->_M_nxt = __n->_M_nxt; + iterator __result(__n->_M_next()); + this->_M_deallocate_node(__n); + --_M_element_count; + + return __result; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_erase(true_type, const key_type& __k) + -> size_type + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + + // Look for the node before the first matching node. + __node_base* __prev_n = _M_find_before_node(__bkt, __k, __code); + if (!__prev_n) + return 0; + + // We found a matching node, erase it. + __node_type* __n = static_cast<__node_type*>(__prev_n->_M_nxt); + _M_erase(__bkt, __prev_n, __n); + return 1; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_erase(false_type, const key_type& __k) + -> size_type + { + __hash_code __code = this->_M_hash_code(__k); + std::size_t __bkt = _M_bucket_index(__k, __code); + + // Look for the node before the first matching node. + __node_base* __prev_n = _M_find_before_node(__bkt, __k, __code); + if (!__prev_n) + return 0; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 526. Is it undefined if a function in the standard changes + // in parameters? + // We use one loop to find all matching nodes and another to deallocate + // them so that the key stays valid during the first loop. It might be + // invalidated indirectly when destroying nodes. + __node_type* __n = static_cast<__node_type*>(__prev_n->_M_nxt); + __node_type* __n_last = __n; + std::size_t __n_last_bkt = __bkt; + do + { + __n_last = __n_last->_M_next(); + if (!__n_last) + break; + __n_last_bkt = _M_bucket_index(__n_last); + } + while (__n_last_bkt == __bkt && this->_M_equals(__k, __code, __n_last)); + + // Deallocate nodes. + size_type __result = 0; + do + { + __node_type* __p = __n->_M_next(); + this->_M_deallocate_node(__n); + __n = __p; + ++__result; + --_M_element_count; + } + while (__n != __n_last); + + if (__prev_n == _M_buckets[__bkt]) + _M_remove_bucket_begin(__bkt, __n_last, __n_last_bkt); + else if (__n_last && __n_last_bkt != __bkt) + _M_buckets[__n_last_bkt] = __prev_n; + __prev_n->_M_nxt = __n_last; + return __result; + } + + template + auto + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + erase(const_iterator __first, const_iterator __last) + -> iterator + { + __node_type* __n = __first._M_cur; + __node_type* __last_n = __last._M_cur; + if (__n == __last_n) + return iterator(__n); + + std::size_t __bkt = _M_bucket_index(__n); + + __node_base* __prev_n = _M_get_previous_node(__bkt, __n); + bool __is_bucket_begin = __n == _M_bucket_begin(__bkt); + std::size_t __n_bkt = __bkt; + for (;;) + { + do + { + __node_type* __tmp = __n; + __n = __n->_M_next(); + this->_M_deallocate_node(__tmp); + --_M_element_count; + if (!__n) + break; + __n_bkt = _M_bucket_index(__n); + } + while (__n != __last_n && __n_bkt == __bkt); + if (__is_bucket_begin) + _M_remove_bucket_begin(__bkt, __n, __n_bkt); + if (__n == __last_n) + break; + __is_bucket_begin = true; + __bkt = __n_bkt; + } + + if (__n && (__n_bkt != __bkt || __is_bucket_begin)) + _M_buckets[__n_bkt] = __prev_n; + __prev_n->_M_nxt = __n; + return iterator(__n); + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + clear() noexcept + { + this->_M_deallocate_nodes(_M_begin()); + __builtin_memset(_M_buckets, 0, _M_bucket_count * sizeof(__bucket_type)); + _M_element_count = 0; + _M_before_begin._M_nxt = nullptr; + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + rehash(size_type __bkt_count) + { + const __rehash_state& __saved_state = _M_rehash_policy._M_state(); + __bkt_count + = std::max(_M_rehash_policy._M_bkt_for_elements(_M_element_count + 1), + __bkt_count); + __bkt_count = _M_rehash_policy._M_next_bkt(__bkt_count); + + if (__bkt_count != _M_bucket_count) + _M_rehash(__bkt_count, __saved_state); + else + // No rehash, restore previous state to keep it consistent with + // container state. + _M_rehash_policy._M_reset(__saved_state); + } + + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_rehash(size_type __bkt_count, const __rehash_state& __state) + { + __try + { + _M_rehash_aux(__bkt_count, __unique_keys()); + } + __catch(...) + { + // A failure here means that buckets allocation failed. We only + // have to restore hash policy previous state. + _M_rehash_policy._M_reset(__state); + __throw_exception_again; + } + } + + // Rehash when there is no equivalent elements. + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_rehash_aux(size_type __bkt_count, true_type) + { + __bucket_type* __new_buckets = _M_allocate_buckets(__bkt_count); + __node_type* __p = _M_begin(); + _M_before_begin._M_nxt = nullptr; + std::size_t __bbegin_bkt = 0; + while (__p) + { + __node_type* __next = __p->_M_next(); + std::size_t __bkt + = __hash_code_base::_M_bucket_index(__p, __bkt_count); + if (!__new_buckets[__bkt]) + { + __p->_M_nxt = _M_before_begin._M_nxt; + _M_before_begin._M_nxt = __p; + __new_buckets[__bkt] = &_M_before_begin; + if (__p->_M_nxt) + __new_buckets[__bbegin_bkt] = __p; + __bbegin_bkt = __bkt; + } + else + { + __p->_M_nxt = __new_buckets[__bkt]->_M_nxt; + __new_buckets[__bkt]->_M_nxt = __p; + } + __p = __next; + } + + _M_deallocate_buckets(); + _M_bucket_count = __bkt_count; + _M_buckets = __new_buckets; + } + + // Rehash when there can be equivalent elements, preserve their relative + // order. + template + void + _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>:: + _M_rehash_aux(size_type __bkt_count, false_type) + { + __bucket_type* __new_buckets = _M_allocate_buckets(__bkt_count); + + __node_type* __p = _M_begin(); + _M_before_begin._M_nxt = nullptr; + std::size_t __bbegin_bkt = 0; + std::size_t __prev_bkt = 0; + __node_type* __prev_p = nullptr; + bool __check_bucket = false; + + while (__p) + { + __node_type* __next = __p->_M_next(); + std::size_t __bkt + = __hash_code_base::_M_bucket_index(__p, __bkt_count); + + if (__prev_p && __prev_bkt == __bkt) + { + // Previous insert was already in this bucket, we insert after + // the previously inserted one to preserve equivalent elements + // relative order. + __p->_M_nxt = __prev_p->_M_nxt; + __prev_p->_M_nxt = __p; + + // Inserting after a node in a bucket require to check that we + // haven't change the bucket last node, in this case next + // bucket containing its before begin node must be updated. We + // schedule a check as soon as we move out of the sequence of + // equivalent nodes to limit the number of checks. + __check_bucket = true; + } + else + { + if (__check_bucket) + { + // Check if we shall update the next bucket because of + // insertions into __prev_bkt bucket. + if (__prev_p->_M_nxt) + { + std::size_t __next_bkt + = __hash_code_base::_M_bucket_index(__prev_p->_M_next(), + __bkt_count); + if (__next_bkt != __prev_bkt) + __new_buckets[__next_bkt] = __prev_p; + } + __check_bucket = false; + } + + if (!__new_buckets[__bkt]) + { + __p->_M_nxt = _M_before_begin._M_nxt; + _M_before_begin._M_nxt = __p; + __new_buckets[__bkt] = &_M_before_begin; + if (__p->_M_nxt) + __new_buckets[__bbegin_bkt] = __p; + __bbegin_bkt = __bkt; + } + else + { + __p->_M_nxt = __new_buckets[__bkt]->_M_nxt; + __new_buckets[__bkt]->_M_nxt = __p; + } + } + __prev_p = __p; + __prev_bkt = __bkt; + __p = __next; + } + + if (__check_bucket && __prev_p->_M_nxt) + { + std::size_t __next_bkt + = __hash_code_base::_M_bucket_index(__prev_p->_M_next(), + __bkt_count); + if (__next_bkt != __prev_bkt) + __new_buckets[__next_bkt] = __prev_p; + } + + _M_deallocate_buckets(); + _M_bucket_count = __bkt_count; + _M_buckets = __new_buckets; + } + +#if __cplusplus > 201402L + template class _Hash_merge_helper { }; +#endif // C++17 + +#if __cpp_deduction_guides >= 201606 + // Used to constrain deduction guides + template + using _RequireNotAllocatorOrIntegral + = __enable_if_t, __is_allocator<_Hash>>::value>; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // _HASHTABLE_H diff --git a/resources/sources/avr-libstdcpp/include/bits/hashtable_policy.h b/resources/sources/avr-libstdcpp/include/bits/hashtable_policy.h new file mode 100644 index 000000000..ef1201349 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/hashtable_policy.h @@ -0,0 +1,2107 @@ +// Internal policy header for unordered_set and unordered_map -*- C++ -*- + +// Copyright (C) 2010-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/hashtable_policy.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. + * @headername{unordered_map,unordered_set} + */ + +#ifndef _HASHTABLE_POLICY_H +#define _HASHTABLE_POLICY_H 1 + +#include // for std::tuple, std::forward_as_tuple +#include // for std::numeric_limits +#include // for std::min, std::is_permutation. + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + class _Hashtable; + +namespace __detail +{ + /** + * @defgroup hashtable-detail Base and Implementation Classes + * @ingroup unordered_associative_containers + * @{ + */ + template + struct _Hashtable_base; + + // Helper function: return distance(first, last) for forward + // iterators, or 0/1 for input iterators. + template + inline typename std::iterator_traits<_Iterator>::difference_type + __distance_fw(_Iterator __first, _Iterator __last, + std::input_iterator_tag) + { return __first != __last ? 1 : 0; } + + template + inline typename std::iterator_traits<_Iterator>::difference_type + __distance_fw(_Iterator __first, _Iterator __last, + std::forward_iterator_tag) + { return std::distance(__first, __last); } + + template + inline typename std::iterator_traits<_Iterator>::difference_type + __distance_fw(_Iterator __first, _Iterator __last) + { return __distance_fw(__first, __last, + std::__iterator_category(__first)); } + + struct _Identity + { + template + _Tp&& + operator()(_Tp&& __x) const + { return std::forward<_Tp>(__x); } + }; + + struct _Select1st + { + template + auto + operator()(_Tp&& __x) const + -> decltype(std::get<0>(std::forward<_Tp>(__x))) + { return std::get<0>(std::forward<_Tp>(__x)); } + }; + + template + struct _Hashtable_alloc; + + // Functor recycling a pool of nodes and using allocation once the pool is + // empty. + template + struct _ReuseOrAllocNode + { + private: + using __node_alloc_type = _NodeAlloc; + using __hashtable_alloc = _Hashtable_alloc<__node_alloc_type>; + using __node_alloc_traits = + typename __hashtable_alloc::__node_alloc_traits; + using __node_type = typename __hashtable_alloc::__node_type; + + public: + _ReuseOrAllocNode(__node_type* __nodes, __hashtable_alloc& __h) + : _M_nodes(__nodes), _M_h(__h) { } + _ReuseOrAllocNode(const _ReuseOrAllocNode&) = delete; + + ~_ReuseOrAllocNode() + { _M_h._M_deallocate_nodes(_M_nodes); } + + template + __node_type* + operator()(_Arg&& __arg) const + { + if (_M_nodes) + { + __node_type* __node = _M_nodes; + _M_nodes = _M_nodes->_M_next(); + __node->_M_nxt = nullptr; + auto& __a = _M_h._M_node_allocator(); + __node_alloc_traits::destroy(__a, __node->_M_valptr()); + __try + { + __node_alloc_traits::construct(__a, __node->_M_valptr(), + std::forward<_Arg>(__arg)); + } + __catch(...) + { + _M_h._M_deallocate_node_ptr(__node); + __throw_exception_again; + } + return __node; + } + return _M_h._M_allocate_node(std::forward<_Arg>(__arg)); + } + + private: + mutable __node_type* _M_nodes; + __hashtable_alloc& _M_h; + }; + + // Functor similar to the previous one but without any pool of nodes to + // recycle. + template + struct _AllocNode + { + private: + using __hashtable_alloc = _Hashtable_alloc<_NodeAlloc>; + using __node_type = typename __hashtable_alloc::__node_type; + + public: + _AllocNode(__hashtable_alloc& __h) + : _M_h(__h) { } + + template + __node_type* + operator()(_Arg&& __arg) const + { return _M_h._M_allocate_node(std::forward<_Arg>(__arg)); } + + private: + __hashtable_alloc& _M_h; + }; + + // Auxiliary types used for all instantiations of _Hashtable nodes + // and iterators. + + /** + * struct _Hashtable_traits + * + * Important traits for hash tables. + * + * @tparam _Cache_hash_code Boolean value. True if the value of + * the hash function is stored along with the value. This is a + * time-space tradeoff. Storing it may improve lookup speed by + * reducing the number of times we need to call the _Hash or _Equal + * functors. + * + * @tparam _Constant_iterators Boolean value. True if iterator and + * const_iterator are both constant iterator types. This is true + * for unordered_set and unordered_multiset, false for + * unordered_map and unordered_multimap. + * + * @tparam _Unique_keys Boolean value. True if the return value + * of _Hashtable::count(k) is always at most one, false if it may + * be an arbitrary number. This is true for unordered_set and + * unordered_map, false for unordered_multiset and + * unordered_multimap. + */ + template + struct _Hashtable_traits + { + using __hash_cached = __bool_constant<_Cache_hash_code>; + using __constant_iterators = __bool_constant<_Constant_iterators>; + using __unique_keys = __bool_constant<_Unique_keys>; + }; + + /** + * struct _Hash_node_base + * + * Nodes, used to wrap elements stored in the hash table. A policy + * template parameter of class template _Hashtable controls whether + * nodes also store a hash code. In some cases (e.g. strings) this + * may be a performance win. + */ + struct _Hash_node_base + { + _Hash_node_base* _M_nxt; + + _Hash_node_base() noexcept : _M_nxt() { } + + _Hash_node_base(_Hash_node_base* __next) noexcept : _M_nxt(__next) { } + }; + + /** + * struct _Hash_node_value_base + * + * Node type with the value to store. + */ + template + struct _Hash_node_value_base : _Hash_node_base + { + typedef _Value value_type; + + __gnu_cxx::__aligned_buffer<_Value> _M_storage; + + _Value* + _M_valptr() noexcept + { return _M_storage._M_ptr(); } + + const _Value* + _M_valptr() const noexcept + { return _M_storage._M_ptr(); } + + _Value& + _M_v() noexcept + { return *_M_valptr(); } + + const _Value& + _M_v() const noexcept + { return *_M_valptr(); } + }; + + /** + * Primary template struct _Hash_node. + */ + template + struct _Hash_node; + + /** + * Specialization for nodes with caches, struct _Hash_node. + * + * Base class is __detail::_Hash_node_value_base. + */ + template + struct _Hash_node<_Value, true> : _Hash_node_value_base<_Value> + { + std::size_t _M_hash_code; + + _Hash_node* + _M_next() const noexcept + { return static_cast<_Hash_node*>(this->_M_nxt); } + }; + + /** + * Specialization for nodes without caches, struct _Hash_node. + * + * Base class is __detail::_Hash_node_value_base. + */ + template + struct _Hash_node<_Value, false> : _Hash_node_value_base<_Value> + { + _Hash_node* + _M_next() const noexcept + { return static_cast<_Hash_node*>(this->_M_nxt); } + }; + + /// Base class for node iterators. + template + struct _Node_iterator_base + { + using __node_type = _Hash_node<_Value, _Cache_hash_code>; + + __node_type* _M_cur; + + _Node_iterator_base(__node_type* __p) noexcept + : _M_cur(__p) { } + + void + _M_incr() noexcept + { _M_cur = _M_cur->_M_next(); } + }; + + template + inline bool + operator==(const _Node_iterator_base<_Value, _Cache_hash_code>& __x, + const _Node_iterator_base<_Value, _Cache_hash_code >& __y) + noexcept + { return __x._M_cur == __y._M_cur; } + + template + inline bool + operator!=(const _Node_iterator_base<_Value, _Cache_hash_code>& __x, + const _Node_iterator_base<_Value, _Cache_hash_code>& __y) + noexcept + { return __x._M_cur != __y._M_cur; } + + /// Node iterators, used to iterate through all the hashtable. + template + struct _Node_iterator + : public _Node_iterator_base<_Value, __cache> + { + private: + using __base_type = _Node_iterator_base<_Value, __cache>; + using __node_type = typename __base_type::__node_type; + + public: + typedef _Value value_type; + typedef std::ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + using pointer = typename std::conditional<__constant_iterators, + const _Value*, _Value*>::type; + + using reference = typename std::conditional<__constant_iterators, + const _Value&, _Value&>::type; + + _Node_iterator() noexcept + : __base_type(0) { } + + explicit + _Node_iterator(__node_type* __p) noexcept + : __base_type(__p) { } + + reference + operator*() const noexcept + { return this->_M_cur->_M_v(); } + + pointer + operator->() const noexcept + { return this->_M_cur->_M_valptr(); } + + _Node_iterator& + operator++() noexcept + { + this->_M_incr(); + return *this; + } + + _Node_iterator + operator++(int) noexcept + { + _Node_iterator __tmp(*this); + this->_M_incr(); + return __tmp; + } + }; + + /// Node const_iterators, used to iterate through all the hashtable. + template + struct _Node_const_iterator + : public _Node_iterator_base<_Value, __cache> + { + private: + using __base_type = _Node_iterator_base<_Value, __cache>; + using __node_type = typename __base_type::__node_type; + + public: + typedef _Value value_type; + typedef std::ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + typedef const _Value* pointer; + typedef const _Value& reference; + + _Node_const_iterator() noexcept + : __base_type(0) { } + + explicit + _Node_const_iterator(__node_type* __p) noexcept + : __base_type(__p) { } + + _Node_const_iterator(const _Node_iterator<_Value, __constant_iterators, + __cache>& __x) noexcept + : __base_type(__x._M_cur) { } + + reference + operator*() const noexcept + { return this->_M_cur->_M_v(); } + + pointer + operator->() const noexcept + { return this->_M_cur->_M_valptr(); } + + _Node_const_iterator& + operator++() noexcept + { + this->_M_incr(); + return *this; + } + + _Node_const_iterator + operator++(int) noexcept + { + _Node_const_iterator __tmp(*this); + this->_M_incr(); + return __tmp; + } + }; + + // Many of class template _Hashtable's template parameters are policy + // classes. These are defaults for the policies. + + /// Default range hashing function: use division to fold a large number + /// into the range [0, N). + struct _Mod_range_hashing + { + typedef std::size_t first_argument_type; + typedef std::size_t second_argument_type; + typedef std::size_t result_type; + + result_type + operator()(first_argument_type __num, + second_argument_type __den) const noexcept + { return __num % __den; } + }; + + /// Default ranged hash function H. In principle it should be a + /// function object composed from objects of type H1 and H2 such that + /// h(k, N) = h2(h1(k), N), but that would mean making extra copies of + /// h1 and h2. So instead we'll just use a tag to tell class template + /// hashtable to do that composition. + struct _Default_ranged_hash { }; + + /// Default value for rehash policy. Bucket size is (usually) the + /// smallest prime that keeps the load factor small enough. + struct _Prime_rehash_policy + { + using __has_load_factor = true_type; + + _Prime_rehash_policy(float __z = 1.0) noexcept + : _M_max_load_factor(__z), _M_next_resize(0) { } + + float + max_load_factor() const noexcept + { return _M_max_load_factor; } + + // Return a bucket size no smaller than n. + std::size_t + _M_next_bkt(std::size_t __n) const; + + // Return a bucket count appropriate for n elements + std::size_t + _M_bkt_for_elements(std::size_t __n) const + { return __builtin_ceill(__n / (long double)_M_max_load_factor); } + + // __n_bkt is current bucket count, __n_elt is current element count, + // and __n_ins is number of elements to be inserted. Do we need to + // increase bucket count? If so, return make_pair(true, n), where n + // is the new bucket count. If not, return make_pair(false, 0). + std::pair + _M_need_rehash(std::size_t __n_bkt, std::size_t __n_elt, + std::size_t __n_ins) const; + + typedef std::size_t _State; + + _State + _M_state() const + { return _M_next_resize; } + + void + _M_reset() noexcept + { _M_next_resize = 0; } + + void + _M_reset(_State __state) + { _M_next_resize = __state; } + + static const std::size_t _S_growth_factor = 2; + + float _M_max_load_factor; + mutable std::size_t _M_next_resize; + }; + + /// Range hashing function assuming that second arg is a power of 2. + struct _Mask_range_hashing + { + typedef std::size_t first_argument_type; + typedef std::size_t second_argument_type; + typedef std::size_t result_type; + + result_type + operator()(first_argument_type __num, + second_argument_type __den) const noexcept + { return __num & (__den - 1); } + }; + + /// Compute closest power of 2 not less than __n + inline std::size_t + __clp2(std::size_t __n) noexcept + { + // Equivalent to return __n ? std::bit_ceil(__n) : 0; + if (__n < 2) + return __n; + const unsigned __lz = sizeof(size_t) > sizeof(long) + ? __builtin_clzll(__n - 1ull) + : __builtin_clzl(__n - 1ul); + // Doing two shifts avoids undefined behaviour when __lz == 0. + return (size_t(1) << (numeric_limits::digits - __lz - 1)) << 1; + } + + /// Rehash policy providing power of 2 bucket numbers. Avoids modulo + /// operations. + struct _Power2_rehash_policy + { + using __has_load_factor = true_type; + + _Power2_rehash_policy(float __z = 1.0) noexcept + : _M_max_load_factor(__z), _M_next_resize(0) { } + + float + max_load_factor() const noexcept + { return _M_max_load_factor; } + + // Return a bucket size no smaller than n (as long as n is not above the + // highest power of 2). + std::size_t + _M_next_bkt(std::size_t __n) noexcept + { + if (__n == 0) + // Special case on container 1st initialization with 0 bucket count + // hint. We keep _M_next_resize to 0 to make sure that next time we + // want to add an element allocation will take place. + return 1; + + const auto __max_width = std::min(sizeof(size_t), 8); + const auto __max_bkt = size_t(1) << (__max_width * __CHAR_BIT__ - 1); + std::size_t __res = __clp2(__n); + + if (__res == 0) + __res = __max_bkt; + else if (__res == 1) + // If __res is 1 we force it to 2 to make sure there will be an + // allocation so that nothing need to be stored in the initial + // single bucket + __res = 2; + + if (__res == __max_bkt) + // Set next resize to the max value so that we never try to rehash again + // as we already reach the biggest possible bucket number. + // Note that it might result in max_load_factor not being respected. + _M_next_resize = numeric_limits::max(); + else + _M_next_resize + = __builtin_floorl(__res * (long double)_M_max_load_factor); + + return __res; + } + + // Return a bucket count appropriate for n elements + std::size_t + _M_bkt_for_elements(std::size_t __n) const noexcept + { return __builtin_ceill(__n / (long double)_M_max_load_factor); } + + // __n_bkt is current bucket count, __n_elt is current element count, + // and __n_ins is number of elements to be inserted. Do we need to + // increase bucket count? If so, return make_pair(true, n), where n + // is the new bucket count. If not, return make_pair(false, 0). + std::pair + _M_need_rehash(std::size_t __n_bkt, std::size_t __n_elt, + std::size_t __n_ins) noexcept + { + if (__n_elt + __n_ins > _M_next_resize) + { + // If _M_next_resize is 0 it means that we have nothing allocated so + // far and that we start inserting elements. In this case we start + // with an initial bucket size of 11. + long double __min_bkts + = std::max(__n_elt + __n_ins, _M_next_resize ? 0 : 11) + / (long double)_M_max_load_factor; + if (__min_bkts >= __n_bkt) + return { true, + _M_next_bkt(std::max(__builtin_floorl(__min_bkts) + 1, + __n_bkt * _S_growth_factor)) }; + + _M_next_resize + = __builtin_floorl(__n_bkt * (long double)_M_max_load_factor); + return { false, 0 }; + } + else + return { false, 0 }; + } + + typedef std::size_t _State; + + _State + _M_state() const noexcept + { return _M_next_resize; } + + void + _M_reset() noexcept + { _M_next_resize = 0; } + + void + _M_reset(_State __state) noexcept + { _M_next_resize = __state; } + + static const std::size_t _S_growth_factor = 2; + + float _M_max_load_factor; + std::size_t _M_next_resize; + }; + + // Base classes for std::_Hashtable. We define these base classes + // because in some cases we want to do different things depending on + // the value of a policy class. In some cases the policy class + // affects which member functions and nested typedefs are defined; + // we handle that by specializing base class templates. Several of + // the base class templates need to access other members of class + // template _Hashtable, so we use a variant of the "Curiously + // Recurring Template Pattern" (CRTP) technique. + + /** + * Primary class template _Map_base. + * + * If the hashtable has a value type of the form pair and a + * key extraction policy (_ExtractKey) that returns the first part + * of the pair, the hashtable gets a mapped_type typedef. If it + * satisfies those criteria and also has unique keys, then it also + * gets an operator[]. + */ + template + struct _Map_base { }; + + /// Partial specialization, __unique_keys set to false. + template + struct _Map_base<_Key, _Pair, _Alloc, _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, false> + { + using mapped_type = typename std::tuple_element<1, _Pair>::type; + }; + + /// Partial specialization, __unique_keys set to true. + template + struct _Map_base<_Key, _Pair, _Alloc, _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true> + { + private: + using __hashtable_base = __detail::_Hashtable_base<_Key, _Pair, + _Select1st, + _Equal, _H1, _H2, _Hash, + _Traits>; + + using __hashtable = _Hashtable<_Key, _Pair, _Alloc, + _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>; + + using __hash_code = typename __hashtable_base::__hash_code; + using __node_type = typename __hashtable_base::__node_type; + + public: + using key_type = typename __hashtable_base::key_type; + using iterator = typename __hashtable_base::iterator; + using mapped_type = typename std::tuple_element<1, _Pair>::type; + + mapped_type& + operator[](const key_type& __k); + + mapped_type& + operator[](key_type&& __k); + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 761. unordered_map needs an at() member function. + mapped_type& + at(const key_type& __k); + + const mapped_type& + at(const key_type& __k) const; + }; + + template + auto + _Map_base<_Key, _Pair, _Alloc, _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true>:: + operator[](const key_type& __k) + -> mapped_type& + { + __hashtable* __h = static_cast<__hashtable*>(this); + __hash_code __code = __h->_M_hash_code(__k); + std::size_t __bkt = __h->_M_bucket_index(__k, __code); + if (__node_type* __node = __h->_M_find_node(__bkt, __k, __code)) + return __node->_M_v().second; + + typename __hashtable::_Scoped_node __node { + __h, + std::piecewise_construct, + std::tuple(__k), + std::tuple<>() + }; + auto __pos + = __h->_M_insert_unique_node(__k, __bkt, __code, __node._M_node); + __node._M_node = nullptr; + return __pos->second; + } + + template + auto + _Map_base<_Key, _Pair, _Alloc, _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true>:: + operator[](key_type&& __k) + -> mapped_type& + { + __hashtable* __h = static_cast<__hashtable*>(this); + __hash_code __code = __h->_M_hash_code(__k); + std::size_t __bkt = __h->_M_bucket_index(__k, __code); + if (__node_type* __node = __h->_M_find_node(__bkt, __k, __code)) + return __node->_M_v().second; + + typename __hashtable::_Scoped_node __node { + __h, + std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::tuple<>() + }; + auto __pos + = __h->_M_insert_unique_node(__k, __bkt, __code, __node._M_node); + __node._M_node = nullptr; + return __pos->second; + } + + template + auto + _Map_base<_Key, _Pair, _Alloc, _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true>:: + at(const key_type& __k) + -> mapped_type& + { + __hashtable* __h = static_cast<__hashtable*>(this); + __hash_code __code = __h->_M_hash_code(__k); + std::size_t __bkt = __h->_M_bucket_index(__k, __code); + __node_type* __p = __h->_M_find_node(__bkt, __k, __code); + + if (!__p) + __throw_out_of_range(__N("_Map_base::at")); + return __p->_M_v().second; + } + + template + auto + _Map_base<_Key, _Pair, _Alloc, _Select1st, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true>:: + at(const key_type& __k) const + -> const mapped_type& + { + const __hashtable* __h = static_cast(this); + __hash_code __code = __h->_M_hash_code(__k); + std::size_t __bkt = __h->_M_bucket_index(__k, __code); + __node_type* __p = __h->_M_find_node(__bkt, __k, __code); + + if (!__p) + __throw_out_of_range(__N("_Map_base::at")); + return __p->_M_v().second; + } + + /** + * Primary class template _Insert_base. + * + * Defines @c insert member functions appropriate to all _Hashtables. + */ + template + struct _Insert_base + { + protected: + using __hashtable = _Hashtable<_Key, _Value, _Alloc, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + + using __hashtable_base = _Hashtable_base<_Key, _Value, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _Traits>; + + using value_type = typename __hashtable_base::value_type; + using iterator = typename __hashtable_base::iterator; + using const_iterator = typename __hashtable_base::const_iterator; + using size_type = typename __hashtable_base::size_type; + + using __unique_keys = typename __hashtable_base::__unique_keys; + using __ireturn_type = typename __hashtable_base::__ireturn_type; + using __node_type = _Hash_node<_Value, _Traits::__hash_cached::value>; + using __node_alloc_type = __alloc_rebind<_Alloc, __node_type>; + using __node_gen_type = _AllocNode<__node_alloc_type>; + + __hashtable& + _M_conjure_hashtable() + { return *(static_cast<__hashtable*>(this)); } + + template + void + _M_insert_range(_InputIterator __first, _InputIterator __last, + const _NodeGetter&, true_type); + + template + void + _M_insert_range(_InputIterator __first, _InputIterator __last, + const _NodeGetter&, false_type); + + public: + __ireturn_type + insert(const value_type& __v) + { + __hashtable& __h = _M_conjure_hashtable(); + __node_gen_type __node_gen(__h); + return __h._M_insert(__v, __node_gen, __unique_keys()); + } + + iterator + insert(const_iterator __hint, const value_type& __v) + { + __hashtable& __h = _M_conjure_hashtable(); + __node_gen_type __node_gen(__h); + return __h._M_insert(__hint, __v, __node_gen, __unique_keys()); + } + + void + insert(initializer_list __l) + { this->insert(__l.begin(), __l.end()); } + + template + void + insert(_InputIterator __first, _InputIterator __last) + { + __hashtable& __h = _M_conjure_hashtable(); + __node_gen_type __node_gen(__h); + return _M_insert_range(__first, __last, __node_gen, __unique_keys()); + } + }; + + template + template + void + _Insert_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>:: + _M_insert_range(_InputIterator __first, _InputIterator __last, + const _NodeGetter& __node_gen, true_type) + { + size_type __n_elt = __detail::__distance_fw(__first, __last); + if (__n_elt == 0) + return; + + __hashtable& __h = _M_conjure_hashtable(); + for (; __first != __last; ++__first) + { + if (__h._M_insert(*__first, __node_gen, __unique_keys(), + __n_elt).second) + __n_elt = 1; + else if (__n_elt != 1) + --__n_elt; + } + } + + template + template + void + _Insert_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>:: + _M_insert_range(_InputIterator __first, _InputIterator __last, + const _NodeGetter& __node_gen, false_type) + { + using __rehash_type = typename __hashtable::__rehash_type; + using __rehash_state = typename __hashtable::__rehash_state; + using pair_type = std::pair; + + size_type __n_elt = __detail::__distance_fw(__first, __last); + if (__n_elt == 0) + return; + + __hashtable& __h = _M_conjure_hashtable(); + __rehash_type& __rehash = __h._M_rehash_policy; + const __rehash_state& __saved_state = __rehash._M_state(); + pair_type __do_rehash = __rehash._M_need_rehash(__h._M_bucket_count, + __h._M_element_count, + __n_elt); + + if (__do_rehash.first) + __h._M_rehash(__do_rehash.second, __saved_state); + + for (; __first != __last; ++__first) + __h._M_insert(*__first, __node_gen, __unique_keys()); + } + + /** + * Primary class template _Insert. + * + * Defines @c insert member functions that depend on _Hashtable policies, + * via partial specializations. + */ + template + struct _Insert; + + /// Specialization. + template + struct _Insert<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits, true> + : public _Insert_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits> + { + using __base_type = _Insert_base<_Key, _Value, _Alloc, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + + using __hashtable_base = _Hashtable_base<_Key, _Value, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _Traits>; + + using value_type = typename __base_type::value_type; + using iterator = typename __base_type::iterator; + using const_iterator = typename __base_type::const_iterator; + + using __unique_keys = typename __base_type::__unique_keys; + using __ireturn_type = typename __hashtable_base::__ireturn_type; + using __hashtable = typename __base_type::__hashtable; + using __node_gen_type = typename __base_type::__node_gen_type; + + using __base_type::insert; + + __ireturn_type + insert(value_type&& __v) + { + __hashtable& __h = this->_M_conjure_hashtable(); + __node_gen_type __node_gen(__h); + return __h._M_insert(std::move(__v), __node_gen, __unique_keys()); + } + + iterator + insert(const_iterator __hint, value_type&& __v) + { + __hashtable& __h = this->_M_conjure_hashtable(); + __node_gen_type __node_gen(__h); + return __h._M_insert(__hint, std::move(__v), __node_gen, + __unique_keys()); + } + }; + + /// Specialization. + template + struct _Insert<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits, false> + : public _Insert_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits> + { + using __base_type = _Insert_base<_Key, _Value, _Alloc, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + using value_type = typename __base_type::value_type; + using iterator = typename __base_type::iterator; + using const_iterator = typename __base_type::const_iterator; + + using __unique_keys = typename __base_type::__unique_keys; + using __hashtable = typename __base_type::__hashtable; + using __ireturn_type = typename __base_type::__ireturn_type; + + using __base_type::insert; + + template + using __is_cons = std::is_constructible; + + template + using _IFcons = std::enable_if<__is_cons<_Pair>::value>; + + template + using _IFconsp = typename _IFcons<_Pair>::type; + + template> + __ireturn_type + insert(_Pair&& __v) + { + __hashtable& __h = this->_M_conjure_hashtable(); + return __h._M_emplace(__unique_keys(), std::forward<_Pair>(__v)); + } + + template> + iterator + insert(const_iterator __hint, _Pair&& __v) + { + __hashtable& __h = this->_M_conjure_hashtable(); + return __h._M_emplace(__hint, __unique_keys(), + std::forward<_Pair>(__v)); + } + }; + + template + using __has_load_factor = typename _Policy::__has_load_factor; + + /** + * Primary class template _Rehash_base. + * + * Give hashtable the max_load_factor functions and reserve iff the + * rehash policy supports it. + */ + template> + struct _Rehash_base; + + /// Specialization when rehash policy doesn't provide load factor management. + template + struct _Rehash_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, + false_type> + { + }; + + /// Specialization when rehash policy provide load factor management. + template + struct _Rehash_base<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, + true_type> + { + using __hashtable = _Hashtable<_Key, _Value, _Alloc, _ExtractKey, + _Equal, _H1, _H2, _Hash, + _RehashPolicy, _Traits>; + + float + max_load_factor() const noexcept + { + const __hashtable* __this = static_cast(this); + return __this->__rehash_policy().max_load_factor(); + } + + void + max_load_factor(float __z) + { + __hashtable* __this = static_cast<__hashtable*>(this); + __this->__rehash_policy(_RehashPolicy(__z)); + } + + void + reserve(std::size_t __n) + { + __hashtable* __this = static_cast<__hashtable*>(this); + __this->rehash(__this->__rehash_policy()._M_bkt_for_elements(__n)); + } + }; + + /** + * Primary class template _Hashtable_ebo_helper. + * + * Helper class using EBO when it is not forbidden (the type is not + * final) and when it is worth it (the type is empty.) + */ + template + struct _Hashtable_ebo_helper; + + /// Specialization using EBO. + template + struct _Hashtable_ebo_helper<_Nm, _Tp, true> + : private _Tp + { + _Hashtable_ebo_helper() = default; + + template + _Hashtable_ebo_helper(_OtherTp&& __tp) + : _Tp(std::forward<_OtherTp>(__tp)) + { } + + const _Tp& _M_cget() const { return static_cast(*this); } + _Tp& _M_get() { return static_cast<_Tp&>(*this); } + }; + + /// Specialization not using EBO. + template + struct _Hashtable_ebo_helper<_Nm, _Tp, false> + { + _Hashtable_ebo_helper() = default; + + template + _Hashtable_ebo_helper(_OtherTp&& __tp) + : _M_tp(std::forward<_OtherTp>(__tp)) + { } + + const _Tp& _M_cget() const { return _M_tp; } + _Tp& _M_get() { return _M_tp; } + + private: + _Tp _M_tp; + }; + + /** + * Primary class template _Local_iterator_base. + * + * Base class for local iterators, used to iterate within a bucket + * but not between buckets. + */ + template + struct _Local_iterator_base; + + /** + * Primary class template _Hash_code_base. + * + * Encapsulates two policy issues that aren't quite orthogonal. + * (1) the difference between using a ranged hash function and using + * the combination of a hash function and a range-hashing function. + * In the former case we don't have such things as hash codes, so + * we have a dummy type as placeholder. + * (2) Whether or not we cache hash codes. Caching hash codes is + * meaningless if we have a ranged hash function. + * + * We also put the key extraction objects here, for convenience. + * Each specialization derives from one or more of the template + * parameters to benefit from Ebo. This is important as this type + * is inherited in some cases by the _Local_iterator_base type used + * to implement local_iterator and const_local_iterator. As with + * any iterator type we prefer to make it as small as possible. + * + * Primary template is unused except as a hook for specializations. + */ + template + struct _Hash_code_base; + + /// Specialization: ranged hash function, no caching hash codes. H1 + /// and H2 are provided but ignored. We define a dummy hash code type. + template + struct _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, false> + : private _Hashtable_ebo_helper<0, _ExtractKey>, + private _Hashtable_ebo_helper<1, _Hash> + { + private: + using __ebo_extract_key = _Hashtable_ebo_helper<0, _ExtractKey>; + using __ebo_hash = _Hashtable_ebo_helper<1, _Hash>; + + protected: + typedef void* __hash_code; + typedef _Hash_node<_Value, false> __node_type; + + // We need the default constructor for the local iterators and _Hashtable + // default constructor. + _Hash_code_base() = default; + + _Hash_code_base(const _ExtractKey& __ex, const _H1&, const _H2&, + const _Hash& __h) + : __ebo_extract_key(__ex), __ebo_hash(__h) { } + + __hash_code + _M_hash_code(const _Key& __key) const + { return 0; } + + std::size_t + _M_bucket_index(const _Key& __k, __hash_code, + std::size_t __bkt_count) const + { return _M_ranged_hash()(__k, __bkt_count); } + + std::size_t + _M_bucket_index(const __node_type* __p, std::size_t __bkt_count) const + noexcept( noexcept(declval()(declval(), + (std::size_t)0)) ) + { return _M_ranged_hash()(_M_extract()(__p->_M_v()), __bkt_count); } + + void + _M_store_code(__node_type*, __hash_code) const + { } + + void + _M_copy_code(__node_type*, const __node_type*) const + { } + + void + _M_swap(_Hash_code_base& __x) + { + std::swap(__ebo_extract_key::_M_get(), + __x.__ebo_extract_key::_M_get()); + std::swap(__ebo_hash::_M_get(), __x.__ebo_hash::_M_get()); + } + + const _ExtractKey& + _M_extract() const { return __ebo_extract_key::_M_cget(); } + + const _Hash& + _M_ranged_hash() const { return __ebo_hash::_M_cget(); } + }; + + // No specialization for ranged hash function while caching hash codes. + // That combination is meaningless, and trying to do it is an error. + + /// Specialization: ranged hash function, cache hash codes. This + /// combination is meaningless, so we provide only a declaration + /// and no definition. + template + struct _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, true>; + + /// Specialization: hash function and range-hashing function, no + /// caching of hash codes. + /// Provides typedef and accessor required by C++ 11. + template + struct _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, + _Default_ranged_hash, false> + : private _Hashtable_ebo_helper<0, _ExtractKey>, + private _Hashtable_ebo_helper<1, _H1>, + private _Hashtable_ebo_helper<2, _H2> + { + private: + using __ebo_extract_key = _Hashtable_ebo_helper<0, _ExtractKey>; + using __ebo_h1 = _Hashtable_ebo_helper<1, _H1>; + using __ebo_h2 = _Hashtable_ebo_helper<2, _H2>; + + // Gives the local iterator implementation access to _M_bucket_index(). + friend struct _Local_iterator_base<_Key, _Value, _ExtractKey, _H1, _H2, + _Default_ranged_hash, false>; + + public: + typedef _H1 hasher; + + hasher + hash_function() const + { return _M_h1(); } + + protected: + typedef std::size_t __hash_code; + typedef _Hash_node<_Value, false> __node_type; + + // We need the default constructor for the local iterators and _Hashtable + // default constructor. + _Hash_code_base() = default; + + _Hash_code_base(const _ExtractKey& __ex, + const _H1& __h1, const _H2& __h2, + const _Default_ranged_hash&) + : __ebo_extract_key(__ex), __ebo_h1(__h1), __ebo_h2(__h2) { } + + __hash_code + _M_hash_code(const _Key& __k) const + { + static_assert(__is_invocable{}, + "hash function must be invocable with an argument of key type"); + return _M_h1()(__k); + } + + std::size_t + _M_bucket_index(const _Key&, __hash_code __c, + std::size_t __bkt_count) const + { return _M_h2()(__c, __bkt_count); } + + std::size_t + _M_bucket_index(const __node_type* __p, std::size_t __bkt_count) const + noexcept( noexcept(declval()(declval())) + && noexcept(declval()((__hash_code)0, + (std::size_t)0)) ) + { return _M_h2()(_M_h1()(_M_extract()(__p->_M_v())), __bkt_count); } + + void + _M_store_code(__node_type*, __hash_code) const + { } + + void + _M_copy_code(__node_type*, const __node_type*) const + { } + + void + _M_swap(_Hash_code_base& __x) + { + std::swap(__ebo_extract_key::_M_get(), + __x.__ebo_extract_key::_M_get()); + std::swap(__ebo_h1::_M_get(), __x.__ebo_h1::_M_get()); + std::swap(__ebo_h2::_M_get(), __x.__ebo_h2::_M_get()); + } + + const _ExtractKey& + _M_extract() const { return __ebo_extract_key::_M_cget(); } + + const _H1& + _M_h1() const { return __ebo_h1::_M_cget(); } + + const _H2& + _M_h2() const { return __ebo_h2::_M_cget(); } + }; + + /// Specialization: hash function and range-hashing function, + /// caching hash codes. H is provided but ignored. Provides + /// typedef and accessor required by C++ 11. + template + struct _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, + _Default_ranged_hash, true> + : private _Hashtable_ebo_helper<0, _ExtractKey>, + private _Hashtable_ebo_helper<1, _H1>, + private _Hashtable_ebo_helper<2, _H2> + { + private: + // Gives the local iterator implementation access to _M_h2(). + friend struct _Local_iterator_base<_Key, _Value, _ExtractKey, _H1, _H2, + _Default_ranged_hash, true>; + + using __ebo_extract_key = _Hashtable_ebo_helper<0, _ExtractKey>; + using __ebo_h1 = _Hashtable_ebo_helper<1, _H1>; + using __ebo_h2 = _Hashtable_ebo_helper<2, _H2>; + + public: + typedef _H1 hasher; + + hasher + hash_function() const + { return _M_h1(); } + + protected: + typedef std::size_t __hash_code; + typedef _Hash_node<_Value, true> __node_type; + + // We need the default constructor for _Hashtable default constructor. + _Hash_code_base() = default; + _Hash_code_base(const _ExtractKey& __ex, + const _H1& __h1, const _H2& __h2, + const _Default_ranged_hash&) + : __ebo_extract_key(__ex), __ebo_h1(__h1), __ebo_h2(__h2) { } + + __hash_code + _M_hash_code(const _Key& __k) const + { + static_assert(__is_invocable{}, + "hash function must be invocable with an argument of key type"); + return _M_h1()(__k); + } + + std::size_t + _M_bucket_index(const _Key&, __hash_code __c, + std::size_t __bkt_count) const + { return _M_h2()(__c, __bkt_count); } + + std::size_t + _M_bucket_index(const __node_type* __p, std::size_t __bkt_count) const + noexcept( noexcept(declval()((__hash_code)0, + (std::size_t)0)) ) + { return _M_h2()(__p->_M_hash_code, __bkt_count); } + + void + _M_store_code(__node_type* __n, __hash_code __c) const + { __n->_M_hash_code = __c; } + + void + _M_copy_code(__node_type* __to, const __node_type* __from) const + { __to->_M_hash_code = __from->_M_hash_code; } + + void + _M_swap(_Hash_code_base& __x) + { + std::swap(__ebo_extract_key::_M_get(), + __x.__ebo_extract_key::_M_get()); + std::swap(__ebo_h1::_M_get(), __x.__ebo_h1::_M_get()); + std::swap(__ebo_h2::_M_get(), __x.__ebo_h2::_M_get()); + } + + const _ExtractKey& + _M_extract() const { return __ebo_extract_key::_M_cget(); } + + const _H1& + _M_h1() const { return __ebo_h1::_M_cget(); } + + const _H2& + _M_h2() const { return __ebo_h2::_M_cget(); } + }; + + /// Partial specialization used when nodes contain a cached hash code. + template + struct _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, true> + : private _Hashtable_ebo_helper<0, _H2> + { + protected: + using __base_type = _Hashtable_ebo_helper<0, _H2>; + using __hash_code_base = _Hash_code_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, true>; + + _Local_iterator_base() = default; + _Local_iterator_base(const __hash_code_base& __base, + _Hash_node<_Value, true>* __p, + std::size_t __bkt, std::size_t __bkt_count) + : __base_type(__base._M_h2()), + _M_cur(__p), _M_bucket(__bkt), _M_bucket_count(__bkt_count) { } + + void + _M_incr() + { + _M_cur = _M_cur->_M_next(); + if (_M_cur) + { + std::size_t __bkt + = __base_type::_M_get()(_M_cur->_M_hash_code, + _M_bucket_count); + if (__bkt != _M_bucket) + _M_cur = nullptr; + } + } + + _Hash_node<_Value, true>* _M_cur; + std::size_t _M_bucket; + std::size_t _M_bucket_count; + + public: + const void* + _M_curr() const { return _M_cur; } // for equality ops + + std::size_t + _M_get_bucket() const { return _M_bucket; } // for debug mode + }; + + // Uninitialized storage for a _Hash_code_base. + // This type is DefaultConstructible and Assignable even if the + // _Hash_code_base type isn't, so that _Local_iterator_base<..., false> + // can be DefaultConstructible and Assignable. + template::value> + struct _Hash_code_storage + { + __gnu_cxx::__aligned_buffer<_Tp> _M_storage; + + _Tp* + _M_h() { return _M_storage._M_ptr(); } + + const _Tp* + _M_h() const { return _M_storage._M_ptr(); } + }; + + // Empty partial specialization for empty _Hash_code_base types. + template + struct _Hash_code_storage<_Tp, true> + { + static_assert( std::is_empty<_Tp>::value, "Type must be empty" ); + + // As _Tp is an empty type there will be no bytes written/read through + // the cast pointer, so no strict-aliasing violation. + _Tp* + _M_h() { return reinterpret_cast<_Tp*>(this); } + + const _Tp* + _M_h() const { return reinterpret_cast(this); } + }; + + template + using __hash_code_for_local_iter + = _Hash_code_storage<_Hash_code_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, false>>; + + // Partial specialization used when hash codes are not cached + template + struct _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, false> + : __hash_code_for_local_iter<_Key, _Value, _ExtractKey, _H1, _H2, _Hash> + { + protected: + using __hash_code_base = _Hash_code_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, false>; + + _Local_iterator_base() : _M_bucket_count(-1) { } + + _Local_iterator_base(const __hash_code_base& __base, + _Hash_node<_Value, false>* __p, + std::size_t __bkt, std::size_t __bkt_count) + : _M_cur(__p), _M_bucket(__bkt), _M_bucket_count(__bkt_count) + { _M_init(__base); } + + ~_Local_iterator_base() + { + if (_M_bucket_count != -1) + _M_destroy(); + } + + _Local_iterator_base(const _Local_iterator_base& __iter) + : _M_cur(__iter._M_cur), _M_bucket(__iter._M_bucket), + _M_bucket_count(__iter._M_bucket_count) + { + if (_M_bucket_count != -1) + _M_init(*__iter._M_h()); + } + + _Local_iterator_base& + operator=(const _Local_iterator_base& __iter) + { + if (_M_bucket_count != -1) + _M_destroy(); + _M_cur = __iter._M_cur; + _M_bucket = __iter._M_bucket; + _M_bucket_count = __iter._M_bucket_count; + if (_M_bucket_count != -1) + _M_init(*__iter._M_h()); + return *this; + } + + void + _M_incr() + { + _M_cur = _M_cur->_M_next(); + if (_M_cur) + { + std::size_t __bkt = this->_M_h()->_M_bucket_index(_M_cur, + _M_bucket_count); + if (__bkt != _M_bucket) + _M_cur = nullptr; + } + } + + _Hash_node<_Value, false>* _M_cur; + std::size_t _M_bucket; + std::size_t _M_bucket_count; + + void + _M_init(const __hash_code_base& __base) + { ::new(this->_M_h()) __hash_code_base(__base); } + + void + _M_destroy() { this->_M_h()->~__hash_code_base(); } + + public: + const void* + _M_curr() const { return _M_cur; } // for equality ops and debug mode + + std::size_t + _M_get_bucket() const { return _M_bucket; } // for debug mode + }; + + template + inline bool + operator==(const _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache>& __x, + const _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache>& __y) + { return __x._M_curr() == __y._M_curr(); } + + template + inline bool + operator!=(const _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache>& __x, + const _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache>& __y) + { return __x._M_curr() != __y._M_curr(); } + + /// local iterators + template + struct _Local_iterator + : public _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache> + { + private: + using __base_type = _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache>; + using __hash_code_base = typename __base_type::__hash_code_base; + public: + typedef _Value value_type; + typedef typename std::conditional<__constant_iterators, + const _Value*, _Value*>::type + pointer; + typedef typename std::conditional<__constant_iterators, + const _Value&, _Value&>::type + reference; + typedef std::ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + _Local_iterator() = default; + + _Local_iterator(const __hash_code_base& __base, + _Hash_node<_Value, __cache>* __n, + std::size_t __bkt, std::size_t __bkt_count) + : __base_type(__base, __n, __bkt, __bkt_count) + { } + + reference + operator*() const + { return this->_M_cur->_M_v(); } + + pointer + operator->() const + { return this->_M_cur->_M_valptr(); } + + _Local_iterator& + operator++() + { + this->_M_incr(); + return *this; + } + + _Local_iterator + operator++(int) + { + _Local_iterator __tmp(*this); + this->_M_incr(); + return __tmp; + } + }; + + /// local const_iterators + template + struct _Local_const_iterator + : public _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache> + { + private: + using __base_type = _Local_iterator_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, __cache>; + using __hash_code_base = typename __base_type::__hash_code_base; + + public: + typedef _Value value_type; + typedef const _Value* pointer; + typedef const _Value& reference; + typedef std::ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + _Local_const_iterator() = default; + + _Local_const_iterator(const __hash_code_base& __base, + _Hash_node<_Value, __cache>* __n, + std::size_t __bkt, std::size_t __bkt_count) + : __base_type(__base, __n, __bkt, __bkt_count) + { } + + _Local_const_iterator(const _Local_iterator<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, + __constant_iterators, + __cache>& __x) + : __base_type(__x) + { } + + reference + operator*() const + { return this->_M_cur->_M_v(); } + + pointer + operator->() const + { return this->_M_cur->_M_valptr(); } + + _Local_const_iterator& + operator++() + { + this->_M_incr(); + return *this; + } + + _Local_const_iterator + operator++(int) + { + _Local_const_iterator __tmp(*this); + this->_M_incr(); + return __tmp; + } + }; + + /** + * Primary class template _Hashtable_base. + * + * Helper class adding management of _Equal functor to + * _Hash_code_base type. + * + * Base class templates are: + * - __detail::_Hash_code_base + * - __detail::_Hashtable_ebo_helper + */ + template + struct _Hashtable_base + : public _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, + _Traits::__hash_cached::value>, + private _Hashtable_ebo_helper<0, _Equal> + { + public: + typedef _Key key_type; + typedef _Value value_type; + typedef _Equal key_equal; + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + + using __traits_type = _Traits; + using __hash_cached = typename __traits_type::__hash_cached; + using __constant_iterators = typename __traits_type::__constant_iterators; + using __unique_keys = typename __traits_type::__unique_keys; + + using __hash_code_base = _Hash_code_base<_Key, _Value, _ExtractKey, + _H1, _H2, _Hash, + __hash_cached::value>; + + using __hash_code = typename __hash_code_base::__hash_code; + using __node_type = typename __hash_code_base::__node_type; + + using iterator = __detail::_Node_iterator; + + using const_iterator = __detail::_Node_const_iterator; + + using local_iterator = __detail::_Local_iterator; + + using const_local_iterator = __detail::_Local_const_iterator; + + using __ireturn_type = typename std::conditional<__unique_keys::value, + std::pair, + iterator>::type; + private: + using _EqualEBO = _Hashtable_ebo_helper<0, _Equal>; + + template + struct _Equal_hash_code + { + static bool + _S_equals(__hash_code, const _NodeT&) + { return true; } + }; + + template + struct _Equal_hash_code<_Hash_node<_Ptr2, true>> + { + static bool + _S_equals(__hash_code __c, const _Hash_node<_Ptr2, true>& __n) + { return __c == __n._M_hash_code; } + }; + + protected: + _Hashtable_base() = default; + _Hashtable_base(const _ExtractKey& __ex, const _H1& __h1, const _H2& __h2, + const _Hash& __hash, const _Equal& __eq) + : __hash_code_base(__ex, __h1, __h2, __hash), _EqualEBO(__eq) + { } + + bool + _M_equals(const _Key& __k, __hash_code __c, __node_type* __n) const + { + static_assert(__is_invocable{}, + "key equality predicate must be invocable with two arguments of " + "key type"); + return _Equal_hash_code<__node_type>::_S_equals(__c, *__n) + && _M_eq()(__k, this->_M_extract()(__n->_M_v())); + } + + void + _M_swap(_Hashtable_base& __x) + { + __hash_code_base::_M_swap(__x); + std::swap(_EqualEBO::_M_get(), __x._EqualEBO::_M_get()); + } + + const _Equal& + _M_eq() const { return _EqualEBO::_M_cget(); } + }; + + /** + * Primary class template _Equality. + * + * This is for implementing equality comparison for unordered + * containers, per N3068, by John Lakos and Pablo Halpern. + * Algorithmically, we follow closely the reference implementations + * therein. + */ + template + struct _Equality; + + /// unordered_map and unordered_set specializations. + template + struct _Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true> + { + using __hashtable = _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>; + + bool + _M_equal(const __hashtable&) const; + }; + + template + bool + _Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, true>:: + _M_equal(const __hashtable& __other) const + { + using __node_base = typename __hashtable::__node_base; + using __node_type = typename __hashtable::__node_type; + const __hashtable* __this = static_cast(this); + if (__this->size() != __other.size()) + return false; + + for (auto __itx = __this->begin(); __itx != __this->end(); ++__itx) + { + std::size_t __ybkt = __other._M_bucket_index(__itx._M_cur); + __node_base* __prev_n = __other._M_buckets[__ybkt]; + if (!__prev_n) + return false; + + for (__node_type* __n = static_cast<__node_type*>(__prev_n->_M_nxt);; + __n = __n->_M_next()) + { + if (__n->_M_v() == *__itx) + break; + + if (!__n->_M_nxt + || __other._M_bucket_index(__n->_M_next()) != __ybkt) + return false; + } + } + + return true; + } + + /// unordered_multiset and unordered_multimap specializations. + template + struct _Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, false> + { + using __hashtable = _Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits>; + + bool + _M_equal(const __hashtable&) const; + }; + + template + bool + _Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, + _H1, _H2, _Hash, _RehashPolicy, _Traits, false>:: + _M_equal(const __hashtable& __other) const + { + using __node_base = typename __hashtable::__node_base; + using __node_type = typename __hashtable::__node_type; + const __hashtable* __this = static_cast(this); + if (__this->size() != __other.size()) + return false; + + for (auto __itx = __this->begin(); __itx != __this->end();) + { + std::size_t __x_count = 1; + auto __itx_end = __itx; + for (++__itx_end; __itx_end != __this->end() + && __this->key_eq()(_ExtractKey()(*__itx), + _ExtractKey()(*__itx_end)); + ++__itx_end) + ++__x_count; + + std::size_t __ybkt = __other._M_bucket_index(__itx._M_cur); + __node_base* __y_prev_n = __other._M_buckets[__ybkt]; + if (!__y_prev_n) + return false; + + __node_type* __y_n = static_cast<__node_type*>(__y_prev_n->_M_nxt); + for (;; __y_n = __y_n->_M_next()) + { + if (__this->key_eq()(_ExtractKey()(__y_n->_M_v()), + _ExtractKey()(*__itx))) + break; + + if (!__y_n->_M_nxt + || __other._M_bucket_index(__y_n->_M_next()) != __ybkt) + return false; + } + + typename __hashtable::const_iterator __ity(__y_n); + for (auto __ity_end = __ity; __ity_end != __other.end(); ++__ity_end) + if (--__x_count == 0) + break; + + if (__x_count != 0) + return false; + + if (!std::is_permutation(__itx, __itx_end, __ity)) + return false; + + __itx = __itx_end; + } + return true; + } + + /** + * This type deals with all allocation and keeps an allocator instance + * through inheritance to benefit from EBO when possible. + */ + template + struct _Hashtable_alloc : private _Hashtable_ebo_helper<0, _NodeAlloc> + { + private: + using __ebo_node_alloc = _Hashtable_ebo_helper<0, _NodeAlloc>; + public: + using __node_type = typename _NodeAlloc::value_type; + using __node_alloc_type = _NodeAlloc; + // Use __gnu_cxx to benefit from _S_always_equal and al. + using __node_alloc_traits = __gnu_cxx::__alloc_traits<__node_alloc_type>; + + using __value_alloc_traits = typename __node_alloc_traits::template + rebind_traits; + + using __node_base = __detail::_Hash_node_base; + using __bucket_type = __node_base*; + using __bucket_alloc_type = + __alloc_rebind<__node_alloc_type, __bucket_type>; + using __bucket_alloc_traits = std::allocator_traits<__bucket_alloc_type>; + + _Hashtable_alloc() = default; + _Hashtable_alloc(const _Hashtable_alloc&) = default; + _Hashtable_alloc(_Hashtable_alloc&&) = default; + + template + _Hashtable_alloc(_Alloc&& __a) + : __ebo_node_alloc(std::forward<_Alloc>(__a)) + { } + + __node_alloc_type& + _M_node_allocator() + { return __ebo_node_alloc::_M_get(); } + + const __node_alloc_type& + _M_node_allocator() const + { return __ebo_node_alloc::_M_cget(); } + + // Allocate a node and construct an element within it. + template + __node_type* + _M_allocate_node(_Args&&... __args); + + // Destroy the element within a node and deallocate the node. + void + _M_deallocate_node(__node_type* __n); + + // Deallocate a node. + void + _M_deallocate_node_ptr(__node_type* __n); + + // Deallocate the linked list of nodes pointed to by __n. + // The elements within the nodes are destroyed. + void + _M_deallocate_nodes(__node_type* __n); + + __bucket_type* + _M_allocate_buckets(std::size_t __bkt_count); + + void + _M_deallocate_buckets(__bucket_type*, std::size_t __bkt_count); + }; + + // Definitions of class template _Hashtable_alloc's out-of-line member + // functions. + template + template + auto + _Hashtable_alloc<_NodeAlloc>::_M_allocate_node(_Args&&... __args) + -> __node_type* + { + auto __nptr = __node_alloc_traits::allocate(_M_node_allocator(), 1); + __node_type* __n = std::__to_address(__nptr); + __try + { + ::new ((void*)__n) __node_type; + __node_alloc_traits::construct(_M_node_allocator(), + __n->_M_valptr(), + std::forward<_Args>(__args)...); + return __n; + } + __catch(...) + { + __node_alloc_traits::deallocate(_M_node_allocator(), __nptr, 1); + __throw_exception_again; + } + } + + template + void + _Hashtable_alloc<_NodeAlloc>::_M_deallocate_node(__node_type* __n) + { + __node_alloc_traits::destroy(_M_node_allocator(), __n->_M_valptr()); + _M_deallocate_node_ptr(__n); + } + + template + void + _Hashtable_alloc<_NodeAlloc>::_M_deallocate_node_ptr(__node_type* __n) + { + typedef typename __node_alloc_traits::pointer _Ptr; + auto __ptr = std::pointer_traits<_Ptr>::pointer_to(*__n); + __n->~__node_type(); + __node_alloc_traits::deallocate(_M_node_allocator(), __ptr, 1); + } + + template + void + _Hashtable_alloc<_NodeAlloc>::_M_deallocate_nodes(__node_type* __n) + { + while (__n) + { + __node_type* __tmp = __n; + __n = __n->_M_next(); + _M_deallocate_node(__tmp); + } + } + + template + typename _Hashtable_alloc<_NodeAlloc>::__bucket_type* + _Hashtable_alloc<_NodeAlloc>::_M_allocate_buckets(std::size_t __bkt_count) + { + __bucket_alloc_type __alloc(_M_node_allocator()); + + auto __ptr = __bucket_alloc_traits::allocate(__alloc, __bkt_count); + __bucket_type* __p = std::__to_address(__ptr); + __builtin_memset(__p, 0, __bkt_count * sizeof(__bucket_type)); + return __p; + } + + template + void + _Hashtable_alloc<_NodeAlloc>::_M_deallocate_buckets(__bucket_type* __bkts, + std::size_t __bkt_count) + { + typedef typename __bucket_alloc_traits::pointer _Ptr; + auto __ptr = std::pointer_traits<_Ptr>::pointer_to(*__bkts); + __bucket_alloc_type __alloc(_M_node_allocator()); + __bucket_alloc_traits::deallocate(__alloc, __ptr, __bkt_count); + } + + //@} hashtable-detail +} // namespace __detail +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // _HASHTABLE_POLICY_H diff --git a/resources/sources/avr-libstdcpp/include/bits/indirect_array.h b/resources/sources/avr-libstdcpp/include/bits/indirect_array.h new file mode 100644 index 000000000..11fac3290 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/indirect_array.h @@ -0,0 +1,212 @@ +// The template and inlines for the -*- C++ -*- indirect_array class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/indirect_array.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _INDIRECT_ARRAY_H +#define _INDIRECT_ARRAY_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup numeric_arrays + * @{ + */ + + /** + * @brief Reference to arbitrary subset of an array. + * + * An indirect_array is a reference to the actual elements of an array + * specified by an ordered array of indices. The way to get an + * indirect_array is to call operator[](valarray) on a valarray. + * The returned indirect_array then permits carrying operations out on the + * referenced subset of elements in the original valarray. + * + * For example, if an indirect_array is obtained using the array (4,2,0) as + * an argument, and then assigned to an array containing (1,2,3), then the + * underlying array will have array[0]==3, array[2]==2, and array[4]==1. + * + * @param Tp Element type. + */ + template + class indirect_array + { + public: + typedef _Tp value_type; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 253. valarray helper functions are almost entirely useless + + /// Copy constructor. Both slices refer to the same underlying array. + indirect_array(const indirect_array&); + + /// Assignment operator. Assigns elements to corresponding elements + /// of @a a. + indirect_array& operator=(const indirect_array&); + + /// Assign slice elements to corresponding elements of @a v. + void operator=(const valarray<_Tp>&) const; + /// Multiply slice elements by corresponding elements of @a v. + void operator*=(const valarray<_Tp>&) const; + /// Divide slice elements by corresponding elements of @a v. + void operator/=(const valarray<_Tp>&) const; + /// Modulo slice elements by corresponding elements of @a v. + void operator%=(const valarray<_Tp>&) const; + /// Add corresponding elements of @a v to slice elements. + void operator+=(const valarray<_Tp>&) const; + /// Subtract corresponding elements of @a v from slice elements. + void operator-=(const valarray<_Tp>&) const; + /// Logical xor slice elements with corresponding elements of @a v. + void operator^=(const valarray<_Tp>&) const; + /// Logical and slice elements with corresponding elements of @a v. + void operator&=(const valarray<_Tp>&) const; + /// Logical or slice elements with corresponding elements of @a v. + void operator|=(const valarray<_Tp>&) const; + /// Left shift slice elements by corresponding elements of @a v. + void operator<<=(const valarray<_Tp>&) const; + /// Right shift slice elements by corresponding elements of @a v. + void operator>>=(const valarray<_Tp>&) const; + /// Assign all slice elements to @a t. + void operator= (const _Tp&) const; + // ~indirect_array(); + + template + void operator=(const _Expr<_Dom, _Tp>&) const; + template + void operator*=(const _Expr<_Dom, _Tp>&) const; + template + void operator/=(const _Expr<_Dom, _Tp>&) const; + template + void operator%=(const _Expr<_Dom, _Tp>&) const; + template + void operator+=(const _Expr<_Dom, _Tp>&) const; + template + void operator-=(const _Expr<_Dom, _Tp>&) const; + template + void operator^=(const _Expr<_Dom, _Tp>&) const; + template + void operator&=(const _Expr<_Dom, _Tp>&) const; + template + void operator|=(const _Expr<_Dom, _Tp>&) const; + template + void operator<<=(const _Expr<_Dom, _Tp>&) const; + template + void operator>>=(const _Expr<_Dom, _Tp>&) const; + + private: + /// Copy constructor. Both slices refer to the same underlying array. + indirect_array(_Array<_Tp>, size_t, _Array); + + friend class valarray<_Tp>; + friend class gslice_array<_Tp>; + + const size_t _M_sz; + const _Array _M_index; + const _Array<_Tp> _M_array; + + // not implemented + indirect_array(); + }; + + template + inline + indirect_array<_Tp>::indirect_array(const indirect_array<_Tp>& __a) + : _M_sz(__a._M_sz), _M_index(__a._M_index), _M_array(__a._M_array) {} + + template + inline + indirect_array<_Tp>::indirect_array(_Array<_Tp> __a, size_t __s, + _Array __i) + : _M_sz(__s), _M_index(__i), _M_array(__a) {} + + template + inline indirect_array<_Tp>& + indirect_array<_Tp>::operator=(const indirect_array<_Tp>& __a) + { + std::__valarray_copy(__a._M_array, _M_sz, __a._M_index, _M_array, + _M_index); + return *this; + } + + template + inline void + indirect_array<_Tp>::operator=(const _Tp& __t) const + { std::__valarray_fill(_M_array, _M_index, _M_sz, __t); } + + template + inline void + indirect_array<_Tp>::operator=(const valarray<_Tp>& __v) const + { std::__valarray_copy(_Array<_Tp>(__v), _M_sz, _M_array, _M_index); } + + template + template + inline void + indirect_array<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e) const + { std::__valarray_copy(__e, _M_sz, _M_array, _M_index); } + +#undef _DEFINE_VALARRAY_OPERATOR +#define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ + template \ + inline void \ + indirect_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const\ + { \ + _Array_augmented_##_Name(_M_array, _M_index, _Array<_Tp>(__v), _M_sz); \ + } \ + \ + template \ + template \ + inline void \ + indirect_array<_Tp>::operator _Op##=(const _Expr<_Dom,_Tp>& __e) const\ + { \ + _Array_augmented_##_Name(_M_array, _M_index, __e, _M_sz); \ + } + +_DEFINE_VALARRAY_OPERATOR(*, __multiplies) +_DEFINE_VALARRAY_OPERATOR(/, __divides) +_DEFINE_VALARRAY_OPERATOR(%, __modulus) +_DEFINE_VALARRAY_OPERATOR(+, __plus) +_DEFINE_VALARRAY_OPERATOR(-, __minus) +_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) +_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) +_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) +_DEFINE_VALARRAY_OPERATOR(<<, __shift_left) +_DEFINE_VALARRAY_OPERATOR(>>, __shift_right) + +#undef _DEFINE_VALARRAY_OPERATOR + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _INDIRECT_ARRAY_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/invoke.h b/resources/sources/avr-libstdcpp/include/bits/invoke.h new file mode 100644 index 000000000..18f5b9442 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/invoke.h @@ -0,0 +1,163 @@ +// Implementation of INVOKE -*- C++ -*- + +// Copyright (C) 2016-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/bits/invoke.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _GLIBCXX_INVOKE_H +#define _GLIBCXX_INVOKE_H 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup utilities + * @{ + */ + + // Used by __invoke_impl instead of std::forward<_Tp> so that a + // reference_wrapper is converted to an lvalue-reference. + template::type> + constexpr _Up&& + __invfwd(typename remove_reference<_Tp>::type& __t) noexcept + { return static_cast<_Up&&>(__t); } + + template + constexpr _Res + __invoke_impl(__invoke_other, _Fn&& __f, _Args&&... __args) + { return std::forward<_Fn>(__f)(std::forward<_Args>(__args)...); } + + template + constexpr _Res + __invoke_impl(__invoke_memfun_ref, _MemFun&& __f, _Tp&& __t, + _Args&&... __args) + { return (__invfwd<_Tp>(__t).*__f)(std::forward<_Args>(__args)...); } + + template + constexpr _Res + __invoke_impl(__invoke_memfun_deref, _MemFun&& __f, _Tp&& __t, + _Args&&... __args) + { + return ((*std::forward<_Tp>(__t)).*__f)(std::forward<_Args>(__args)...); + } + + template + constexpr _Res + __invoke_impl(__invoke_memobj_ref, _MemPtr&& __f, _Tp&& __t) + { return __invfwd<_Tp>(__t).*__f; } + + template + constexpr _Res + __invoke_impl(__invoke_memobj_deref, _MemPtr&& __f, _Tp&& __t) + { return (*std::forward<_Tp>(__t)).*__f; } + + /// Invoke a callable object. + template + constexpr typename __invoke_result<_Callable, _Args...>::type + __invoke(_Callable&& __fn, _Args&&... __args) + noexcept(__is_nothrow_invocable<_Callable, _Args...>::value) + { + using __result = __invoke_result<_Callable, _Args...>; + using __type = typename __result::type; + using __tag = typename __result::__invoke_type; + return std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn), + std::forward<_Args>(__args)...); + } + +#if __cplusplus >= 201703L + // INVOKE: Invoke a callable object and convert the result to R. + template + constexpr enable_if_t, _Res> + __invoke_r(_Callable&& __fn, _Args&&... __args) + noexcept(is_nothrow_invocable_r_v<_Res, _Callable, _Args...>) + { + using __result = __invoke_result<_Callable, _Args...>; + using __type = typename __result::type; + using __tag = typename __result::__invoke_type; + if constexpr (is_void_v<_Res>) + std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn), + std::forward<_Args>(__args)...); + else + return std::__invoke_impl<__type>(__tag{}, + std::forward<_Callable>(__fn), + std::forward<_Args>(__args)...); + } +#else // C++11 + template + using __can_invoke_as_void = __enable_if_t< + __and_, __is_invocable<_Callable, _Args...>>::value, + _Res + >; + + template + using __can_invoke_as_nonvoid = __enable_if_t< + __and_<__not_>, + is_convertible::type, + _Res> + >::value, + _Res + >; + + // INVOKE: Invoke a callable object and convert the result to R. + template + constexpr __can_invoke_as_nonvoid<_Res, _Callable, _Args...> + __invoke_r(_Callable&& __fn, _Args&&... __args) + { + using __result = __invoke_result<_Callable, _Args...>; + using __type = typename __result::type; + using __tag = typename __result::__invoke_type; + return std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn), + std::forward<_Args>(__args)...); + } + + // INVOKE when R is cv void + template + _GLIBCXX14_CONSTEXPR __can_invoke_as_void<_Res, _Callable, _Args...> + __invoke_r(_Callable&& __fn, _Args&&... __args) + { + using __result = __invoke_result<_Callable, _Args...>; + using __type = typename __result::type; + using __tag = typename __result::__invoke_type; + std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn), + std::forward<_Args>(__args)...); + } +#endif // C++11 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#endif // _GLIBCXX_INVOKE_H diff --git a/resources/sources/avr-libstdcpp/include/bits/iterator_concepts.h b/resources/sources/avr-libstdcpp/include/bits/iterator_concepts.h new file mode 100644 index 000000000..2721240e3 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/iterator_concepts.h @@ -0,0 +1,911 @@ +// Concepts and traits for use with iterators -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/iterator_concepts.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + */ + +#ifndef _ITERATOR_CONCEPTS_H +#define _ITERATOR_CONCEPTS_H 1 + +#pragma GCC system_header + +#include +#include // to_address +#include // identity, ranges::less + +#if __cpp_lib_concepts +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + struct input_iterator_tag; + struct output_iterator_tag; + struct forward_iterator_tag; + struct bidirectional_iterator_tag; + struct random_access_iterator_tag; + struct contiguous_iterator_tag; + + template + struct iterator_traits; + + template requires is_object_v<_Tp> + struct iterator_traits<_Tp*>; + + template + struct __iterator_traits; + + namespace __detail + { + template + using __with_ref = _Tp&; + + template + concept __can_reference = requires { typename __with_ref<_Tp>; }; + + template + concept __dereferenceable = requires(_Tp& __t) + { + { *__t } -> __can_reference; + }; + } // namespace __detail + + template<__detail::__dereferenceable _Tp> + using iter_reference_t = decltype(*std::declval<_Tp&>()); + + namespace ranges + { + namespace __cust_imove + { + void iter_move(); + + template + concept __adl_imove + = (std::__detail::__class_or_enum>) + && requires(_Tp&& __t) { iter_move(static_cast<_Tp&&>(__t)); }; + + struct _IMove + { + private: + template + struct __result + { using type = iter_reference_t<_Tp>; }; + + template + requires __adl_imove<_Tp> + struct __result<_Tp> + { using type = decltype(iter_move(std::declval<_Tp>())); }; + + template + requires (!__adl_imove<_Tp>) + && is_lvalue_reference_v> + struct __result<_Tp> + { using type = remove_reference_t>&&; }; + + template + static constexpr bool + _S_noexcept() + { + if constexpr (__adl_imove<_Tp>) + return noexcept(iter_move(std::declval<_Tp>())); + else + return noexcept(*std::declval<_Tp>()); + } + + public: + // The result type of iter_move(std::declval<_Tp>()) + template + using __type = typename __result<_Tp>::type; + + template + constexpr __type<_Tp> + operator()(_Tp&& __e) const + noexcept(_S_noexcept<_Tp>()) + { + if constexpr (__adl_imove<_Tp>) + return iter_move(static_cast<_Tp&&>(__e)); + else if constexpr (is_lvalue_reference_v>) + return static_cast<__type<_Tp>>(*__e); + else + return *__e; + } + }; + } // namespace __cust_imove + + inline namespace __cust + { + inline constexpr __cust_imove::_IMove iter_move{}; + } // inline namespace __cust + } // namespace ranges + + template<__detail::__dereferenceable _Tp> + requires requires(_Tp& __t) + { { ranges::iter_move(__t) } -> __detail::__can_reference; } + using iter_rvalue_reference_t + = decltype(ranges::iter_move(std::declval<_Tp&>())); + + template struct incrementable_traits { }; + + template requires is_object_v<_Tp> + struct incrementable_traits<_Tp*> + { using difference_type = ptrdiff_t; }; + + template + struct incrementable_traits + : incrementable_traits<_Iter> { }; + + template requires requires { typename _Tp::difference_type; } + struct incrementable_traits<_Tp> + { using difference_type = typename _Tp::difference_type; }; + + template + requires (!requires { typename _Tp::difference_type; } + && requires(const _Tp& __a, const _Tp& __b) + { + requires (!is_void_v>); // PR c++/78173 + { __a - __b } -> integral; + }) + struct incrementable_traits<_Tp> + { + using difference_type + = make_signed_t() - std::declval<_Tp>())>; + }; + + namespace __detail + { + // An iterator such that iterator_traits<_Iter> names a specialization + // generated from the primary template. + template + concept __primary_traits_iter + = __is_base_of(__iterator_traits<_Iter, void>, iterator_traits<_Iter>); + + template + struct __iter_traits_impl + { using type = iterator_traits<_Iter>; }; + + template + requires __primary_traits_iter<_Iter> + struct __iter_traits_impl<_Iter, _Tp> + { using type = _Tp; }; + + // ITER_TRAITS + template + using __iter_traits = typename __iter_traits_impl<_Iter, _Tp>::type; + + template + using __iter_diff_t = typename + __iter_traits<_Tp, incrementable_traits<_Tp>>::difference_type; + } // namespace __detail + + template + using iter_difference_t = __detail::__iter_diff_t>; + + namespace __detail + { + template struct __cond_value_type { }; + + template requires is_object_v<_Tp> + struct __cond_value_type<_Tp> + { using value_type = remove_cv_t<_Tp>; }; + } // namespace __detail + + template struct indirectly_readable_traits { }; + + template + struct indirectly_readable_traits<_Tp*> + : __detail::__cond_value_type<_Tp> + { }; + + template requires is_array_v<_Iter> + struct indirectly_readable_traits<_Iter> + { using value_type = remove_cv_t>; }; + + template + struct indirectly_readable_traits + : indirectly_readable_traits<_Iter> + { }; + + template requires requires { typename _Tp::value_type; } + struct indirectly_readable_traits<_Tp> + : __detail::__cond_value_type + { }; + + template requires requires { typename _Tp::element_type; } + struct indirectly_readable_traits<_Tp> + : __detail::__cond_value_type + { }; + + namespace __detail + { + template + using __iter_value_t = typename + __iter_traits<_Tp, indirectly_readable_traits<_Tp>>::value_type; + } // namespace __detail + + template + using iter_value_t = __detail::__iter_value_t>; + + namespace __detail + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3420. cpp17-iterator should check [type] looks like an iterator first + template + concept __cpp17_iterator = requires(_Iter __it) + { + { *__it } -> __can_reference; + { ++__it } -> same_as<_Iter&>; + { *__it++ } -> __can_reference; + } && copyable<_Iter>; + + template + concept __cpp17_input_iterator = __cpp17_iterator<_Iter> + && equality_comparable<_Iter> + && requires(_Iter __it) + { + typename incrementable_traits<_Iter>::difference_type; + typename indirectly_readable_traits<_Iter>::value_type; + typename common_reference_t&&, + typename indirectly_readable_traits<_Iter>::value_type&>; + typename common_reference_t::value_type&>; + requires signed_integral< + typename incrementable_traits<_Iter>::difference_type>; + }; + + template + concept __cpp17_fwd_iterator = __cpp17_input_iterator<_Iter> + && constructible_from<_Iter> + && is_lvalue_reference_v> + && same_as>, + typename indirectly_readable_traits<_Iter>::value_type> + && requires(_Iter __it) + { + { __it++ } -> convertible_to; + { *__it++ } -> same_as>; + }; + + template + concept __cpp17_bidi_iterator = __cpp17_fwd_iterator<_Iter> + && requires(_Iter __it) + { + { --__it } -> same_as<_Iter&>; + { __it-- } -> convertible_to; + { *__it-- } -> same_as>; + }; + + template + concept __cpp17_randacc_iterator = __cpp17_bidi_iterator<_Iter> + && totally_ordered<_Iter> + && requires(_Iter __it, + typename incrementable_traits<_Iter>::difference_type __n) + { + { __it += __n } -> same_as<_Iter&>; + { __it -= __n } -> same_as<_Iter&>; + { __it + __n } -> same_as<_Iter>; + { __n + __it } -> same_as<_Iter>; + { __it - __n } -> same_as<_Iter>; + { __it - __it } -> same_as; + { __it[__n] } -> convertible_to>; + }; + + template + concept __iter_with_nested_types = requires { + typename _Iter::iterator_category; + typename _Iter::value_type; + typename _Iter::difference_type; + typename _Iter::reference; + }; + + template + concept __iter_without_nested_types = !__iter_with_nested_types<_Iter>; + + // FIXME: These have to be at namespace-scope because of PR 92103. + template + struct __ptr + { using type = void; }; + + template requires requires { typename _Iter::pointer; } + struct __ptr<_Iter, true> + { using type = typename _Iter::pointer; }; + + template requires requires { typename _Iter::pointer; } + struct __ptr<_Iter, false> + { using type = typename _Iter::pointer; }; + + template + requires (!requires { typename _Iter::pointer; } + && requires(_Iter& __it) { __it.operator->(); }) + struct __ptr<_Iter, true> + { using type = decltype(std::declval<_Iter&>().operator->()); }; + + template + struct __ref + { using type = iter_reference_t<_Iter>; }; + + template requires requires { typename _Iter::reference; } + struct __ref<_Iter> + { using type = typename _Iter::reference; }; + + template + struct __cat + { using type = input_iterator_tag; }; + + template + requires requires { typename _Iter::iterator_category; } + struct __cat<_Iter> + { using type = typename _Iter::iterator_category; }; + + template + requires (!requires { typename _Iter::iterator_category; } + && __detail::__cpp17_randacc_iterator<_Iter>) + struct __cat<_Iter> + { using type = random_access_iterator_tag; }; + + template + requires (!requires { typename _Iter::iterator_category; } + && __detail::__cpp17_bidi_iterator<_Iter>) + struct __cat<_Iter> + { using type = bidirectional_iterator_tag; }; + + template + requires (!requires { typename _Iter::iterator_category; } + && __detail::__cpp17_fwd_iterator<_Iter>) + struct __cat<_Iter> + { using type = forward_iterator_tag; }; + + template + struct __diff + { using type = void; }; + + template + requires requires { + typename incrementable_traits<_Iter>::difference_type; + } + struct __diff<_Iter> + { + using type = typename incrementable_traits<_Iter>::difference_type; + }; + + } // namespace __detail + + template + requires __detail::__iter_with_nested_types<_Iterator> + struct __iterator_traits<_Iterator, void> + { + using iterator_category = typename _Iterator::iterator_category; + using value_type = typename _Iterator::value_type; + using difference_type = typename _Iterator::difference_type; + using pointer = typename __detail::__ptr<_Iterator>::type; + using reference = typename _Iterator::reference; + }; + + template + requires __detail::__iter_without_nested_types<_Iterator> + && __detail::__cpp17_input_iterator<_Iterator> + struct __iterator_traits<_Iterator, void> + { + using iterator_category = typename __detail::__cat<_Iterator>::type; + using value_type + = typename indirectly_readable_traits<_Iterator>::value_type; + using difference_type + = typename incrementable_traits<_Iterator>::difference_type; + using pointer = typename __detail::__ptr<_Iterator, true>::type; + using reference = typename __detail::__ref<_Iterator>::type; + }; + + template + requires __detail::__iter_without_nested_types<_Iterator> + && __detail::__cpp17_iterator<_Iterator> + struct __iterator_traits<_Iterator, void> + { + using iterator_category = output_iterator_tag; + using value_type = void; + using difference_type = typename __detail::__diff<_Iterator>::type; + using pointer = void; + using reference = void; + }; + + namespace __detail + { + template + struct __iter_concept_impl; + + // ITER_CONCEPT(I) is ITER_TRAITS(I)::iterator_concept if that is valid. + template + requires requires { typename __iter_traits<_Iter>::iterator_concept; } + struct __iter_concept_impl<_Iter> + { using type = typename __iter_traits<_Iter>::iterator_concept; }; + + // Otherwise, ITER_TRAITS(I)::iterator_category if that is valid. + template + requires (!requires { typename __iter_traits<_Iter>::iterator_concept; } + && requires { typename __iter_traits<_Iter>::iterator_category; }) + struct __iter_concept_impl<_Iter> + { using type = typename __iter_traits<_Iter>::iterator_category; }; + + // Otherwise, random_access_tag if iterator_traits is not specialized. + template + requires (!requires { typename __iter_traits<_Iter>::iterator_concept; } + && !requires { typename __iter_traits<_Iter>::iterator_category; } + && __primary_traits_iter<_Iter>) + struct __iter_concept_impl<_Iter> + { using type = random_access_iterator_tag; }; + + // Otherwise, there is no ITER_CONCEPT(I) type. + template + struct __iter_concept_impl + { }; + + // ITER_CONCEPT + template + using __iter_concept = typename __iter_concept_impl<_Iter>::type; + + template + concept __indirectly_readable_impl = requires(const _In __in) + { + typename iter_value_t<_In>; + typename iter_reference_t<_In>; + typename iter_rvalue_reference_t<_In>; + { *__in } -> same_as>; + { ranges::iter_move(__in) } -> same_as>; + } + && common_reference_with&&, iter_value_t<_In>&> + && common_reference_with&&, + iter_rvalue_reference_t<_In>&&> + && common_reference_with&&, + const iter_value_t<_In>&>; + + } // namespace __detail + + /// Requirements for types that are readable by applying operator*. + template + concept indirectly_readable + = __detail::__indirectly_readable_impl>; + + template + using iter_common_reference_t + = common_reference_t, iter_value_t<_Tp>&>; + + /// Requirements for writing a value into an iterator's referenced object. + template + concept indirectly_writable = requires(_Out&& __o, _Tp&& __t) + { + *__o = std::forward<_Tp>(__t); + *std::forward<_Out>(__o) = std::forward<_Tp>(__t); + const_cast&&>(*__o) + = std::forward<_Tp>(__t); + const_cast&&>(*std::forward<_Out>(__o)) + = std::forward<_Tp>(__t); + }; + + namespace ranges::__detail + { +#if __SIZEOF_INT128__ + using __max_diff_type = __int128; + using __max_size_type = unsigned __int128; +#else + using __max_diff_type = long long; + using __max_size_type = unsigned long long; +#endif + + template + concept __is_integer_like = integral<_Tp> + || same_as<_Tp, __max_diff_type> || same_as<_Tp, __max_size_type>; + + template + concept __is_signed_integer_like = signed_integral<_Tp> + || same_as<_Tp, __max_diff_type>; + + } // namespace ranges::__detail + + namespace __detail { using ranges::__detail::__is_signed_integer_like; } + + /// Requirements on types that can be incremented with ++. + template + concept weakly_incrementable = default_initializable<_Iter> + && movable<_Iter> + && requires(_Iter __i) + { + typename iter_difference_t<_Iter>; + requires __detail::__is_signed_integer_like>; + { ++__i } -> same_as<_Iter&>; + __i++; + }; + + template + concept incrementable = regular<_Iter> && weakly_incrementable<_Iter> + && requires(_Iter __i) { { __i++ } -> same_as<_Iter>; }; + + template + concept input_or_output_iterator + = requires(_Iter __i) { { *__i } -> __detail::__can_reference; } + && weakly_incrementable<_Iter>; + + template + concept sentinel_for = semiregular<_Sent> + && input_or_output_iterator<_Iter> + && __detail::__weakly_eq_cmp_with<_Sent, _Iter>; + + template + inline constexpr bool disable_sized_sentinel_for = false; + + template + concept sized_sentinel_for = sentinel_for<_Sent, _Iter> + && !disable_sized_sentinel_for, remove_cv_t<_Iter>> + && requires(const _Iter& __i, const _Sent& __s) + { + { __s - __i } -> same_as>; + { __i - __s } -> same_as>; + }; + + template + concept input_iterator = input_or_output_iterator<_Iter> + && indirectly_readable<_Iter> + && requires { typename __detail::__iter_concept<_Iter>; } + && derived_from<__detail::__iter_concept<_Iter>, input_iterator_tag>; + + template + concept output_iterator = input_or_output_iterator<_Iter> + && indirectly_writable<_Iter, _Tp> + && requires(_Iter __i, _Tp&& __t) { *__i++ = std::forward<_Tp>(__t); }; + + template + concept forward_iterator = input_iterator<_Iter> + && derived_from<__detail::__iter_concept<_Iter>, forward_iterator_tag> + && incrementable<_Iter> && sentinel_for<_Iter, _Iter>; + + template + concept bidirectional_iterator = forward_iterator<_Iter> + && derived_from<__detail::__iter_concept<_Iter>, + bidirectional_iterator_tag> + && requires(_Iter __i) + { + { --__i } -> same_as<_Iter&>; + { __i-- } -> same_as<_Iter>; + }; + + template + concept random_access_iterator = bidirectional_iterator<_Iter> + && derived_from<__detail::__iter_concept<_Iter>, + random_access_iterator_tag> + && totally_ordered<_Iter> && sized_sentinel_for<_Iter, _Iter> + && requires(_Iter __i, const _Iter __j, + const iter_difference_t<_Iter> __n) + { + { __i += __n } -> same_as<_Iter&>; + { __j + __n } -> same_as<_Iter>; + { __n + __j } -> same_as<_Iter>; + { __i -= __n } -> same_as<_Iter&>; + { __j - __n } -> same_as<_Iter>; + { __j[__n] } -> same_as>; + }; + + template + concept contiguous_iterator = random_access_iterator<_Iter> + && derived_from<__detail::__iter_concept<_Iter>, contiguous_iterator_tag> + && is_lvalue_reference_v> + && same_as, remove_cvref_t>> + && requires(const _Iter& __i) + { + { std::to_address(__i) } + -> same_as>>; + }; + + // [indirectcallable], indirect callable requirements + + // [indirectcallable.indirectinvocable], indirect callables + + template + concept indirectly_unary_invocable = indirectly_readable<_Iter> + && copy_constructible<_Fn> && invocable<_Fn&, iter_value_t<_Iter>&> + && invocable<_Fn&, iter_reference_t<_Iter>> + && invocable<_Fn&, iter_common_reference_t<_Iter>> + && common_reference_with&>, + invoke_result_t<_Fn&, iter_reference_t<_Iter>>>; + + template + concept indirectly_regular_unary_invocable = indirectly_readable<_Iter> + && copy_constructible<_Fn> + && regular_invocable<_Fn&, iter_value_t<_Iter>&> + && regular_invocable<_Fn&, iter_reference_t<_Iter>> + && regular_invocable<_Fn&, iter_common_reference_t<_Iter>> + && common_reference_with&>, + invoke_result_t<_Fn&, iter_reference_t<_Iter>>>; + + template + concept indirect_unary_predicate = indirectly_readable<_Iter> + && copy_constructible<_Fn> && predicate<_Fn&, iter_value_t<_Iter>&> + && predicate<_Fn&, iter_reference_t<_Iter>> + && predicate<_Fn&, iter_common_reference_t<_Iter>>; + + template + concept indirect_binary_predicate + = indirectly_readable<_I1> && indirectly_readable<_I2> + && copy_constructible<_Fn> + && predicate<_Fn&, iter_value_t<_I1>&, iter_value_t<_I2>&> + && predicate<_Fn&, iter_value_t<_I1>&, iter_reference_t<_I2>> + && predicate<_Fn&, iter_reference_t<_I1>, iter_value_t<_I2>&> + && predicate<_Fn&, iter_reference_t<_I1>, iter_reference_t<_I2>> + && predicate<_Fn&, iter_common_reference_t<_I1>, + iter_common_reference_t<_I2>>; + + template + concept indirect_equivalence_relation + = indirectly_readable<_I1> && indirectly_readable<_I2> + && copy_constructible<_Fn> + && equivalence_relation<_Fn&, iter_value_t<_I1>&, iter_value_t<_I2>&> + && equivalence_relation<_Fn&, iter_value_t<_I1>&, iter_reference_t<_I2>> + && equivalence_relation<_Fn&, iter_reference_t<_I1>, iter_value_t<_I2>&> + && equivalence_relation<_Fn&, iter_reference_t<_I1>, + iter_reference_t<_I2>> + && equivalence_relation<_Fn&, iter_common_reference_t<_I1>, + iter_common_reference_t<_I2>>; + + template + concept indirect_strict_weak_order + = indirectly_readable<_I1> && indirectly_readable<_I2> + && copy_constructible<_Fn> + && strict_weak_order<_Fn&, iter_value_t<_I1>&, iter_value_t<_I2>&> + && strict_weak_order<_Fn&, iter_value_t<_I1>&, iter_reference_t<_I2>> + && strict_weak_order<_Fn&, iter_reference_t<_I1>, iter_value_t<_I2>&> + && strict_weak_order<_Fn&, iter_reference_t<_I1>, iter_reference_t<_I2>> + && strict_weak_order<_Fn&, iter_common_reference_t<_I1>, + iter_common_reference_t<_I2>>; + + template + requires (indirectly_readable<_Is> && ...) + && invocable<_Fn, iter_reference_t<_Is>...> + using indirect_result_t = invoke_result_t<_Fn, iter_reference_t<_Is>...>; + + /// [projected], projected + template _Proj> + struct projected + { + using value_type = remove_cvref_t>; + + indirect_result_t<_Proj&, _Iter> operator*() const; // not defined + }; + + template + struct incrementable_traits> + { using difference_type = iter_difference_t<_Iter>; }; + + // [alg.req], common algorithm requirements + + /// [alg.req.ind.move], concept `indirectly_movable` + + template + concept indirectly_movable = indirectly_readable<_In> + && indirectly_writable<_Out, iter_rvalue_reference_t<_In>>; + + template + concept indirectly_movable_storable = indirectly_movable<_In, _Out> + && indirectly_writable<_Out, iter_value_t<_In>> + && movable> + && constructible_from, iter_rvalue_reference_t<_In>> + && assignable_from&, iter_rvalue_reference_t<_In>>; + + /// [alg.req.ind.copy], concept `indirectly_copyable` + template + concept indirectly_copyable = indirectly_readable<_In> + && indirectly_writable<_Out, iter_reference_t<_In>>; + + template + concept indirectly_copyable_storable = indirectly_copyable<_In, _Out> + && indirectly_writable<_Out, iter_value_t<_In>&> + && indirectly_writable<_Out, const iter_value_t<_In>&> + && indirectly_writable<_Out, iter_value_t<_In>&&> + && indirectly_writable<_Out, const iter_value_t<_In>&&> + && copyable> + && constructible_from, iter_reference_t<_In>> + && assignable_from&, iter_reference_t<_In>>; + +namespace ranges +{ + namespace __cust_iswap + { + template + void iter_swap(_It1, _It2) = delete; + + template + concept __adl_iswap + = (std::__detail::__class_or_enum> + || std::__detail::__class_or_enum>) + && requires(_Tp&& __t, _Up&& __u) { + iter_swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + }; + + template + constexpr iter_value_t<_Xp> + __iter_exchange_move(_Xp&& __x, _Yp&& __y) + noexcept(noexcept(iter_value_t<_Xp>(iter_move(__x))) + && noexcept(*__x = iter_move(__y))) + { + iter_value_t<_Xp> __old_value(iter_move(__x)); + *__x = iter_move(__y); + return __old_value; + } + + struct _IterSwap + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (__adl_iswap<_Tp, _Up>) + return noexcept(iter_swap(std::declval<_Tp>(), + std::declval<_Up>())); + else if constexpr (indirectly_readable<_Tp> + && indirectly_readable<_Up> + && swappable_with, iter_reference_t<_Up>>) + return noexcept(ranges::swap(*std::declval<_Tp>(), + *std::declval<_Up>())); + else + return noexcept(*std::declval<_Tp>() + = __iter_exchange_move(std::declval<_Up>(), + std::declval<_Tp>())); + } + + public: + template + requires __adl_iswap<_Tp, _Up> + || (indirectly_readable> + && indirectly_readable> + && swappable_with, iter_reference_t<_Up>>) + || (indirectly_movable_storable<_Tp, _Up> + && indirectly_movable_storable<_Up, _Tp>) + constexpr void + operator()(_Tp&& __e1, _Up&& __e2) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + if constexpr (__adl_iswap<_Tp, _Up>) + iter_swap(static_cast<_Tp&&>(__e1), static_cast<_Up&&>(__e2)); + else if constexpr (indirectly_readable<_Tp> + && indirectly_readable<_Up> + && swappable_with, iter_reference_t<_Up>>) + ranges::swap(*__e1, *__e2); + else + *__e1 = __iter_exchange_move(__e2, __e1); + } + }; + } // namespace __cust_iswap + + inline namespace __cust + { + inline constexpr __cust_iswap::_IterSwap iter_swap{}; + } // inline namespace __cust + +} // namespace ranges + + /// [alg.req.ind.swap], concept `indirectly_swappable` + template + concept indirectly_swappable + = indirectly_readable<_I1> && indirectly_readable<_I2> + && requires(const _I1 __i1, const _I2 __i2) + { + ranges::iter_swap(__i1, __i1); + ranges::iter_swap(__i2, __i2); + ranges::iter_swap(__i1, __i2); + ranges::iter_swap(__i2, __i1); + }; + + /// [alg.req.ind.cmp], concept `indirectly_comparable` + template + concept indirectly_comparable + = indirect_binary_predicate<_Rel, projected<_I1, _P1>, + projected<_I2, _P2>>; + + /// [alg.req.permutable], concept `permutable` + template + concept permutable = forward_iterator<_Iter> + && indirectly_movable_storable<_Iter, _Iter> + && indirectly_swappable<_Iter, _Iter>; + + /// [alg.req.mergeable], concept `mergeable` + template + concept mergeable = input_iterator<_I1> && input_iterator<_I2> + && weakly_incrementable<_Out> && indirectly_copyable<_I1, _Out> + && indirectly_copyable<_I2, _Out> + && indirect_strict_weak_order<_Rel, projected<_I1, _P1>, + projected<_I2, _P2>>; + + /// [alg.req.sortable], concept `sortable` + template + concept sortable = permutable<_Iter> + && indirect_strict_weak_order<_Rel, projected<_Iter, _Proj>>; + + struct unreachable_sentinel_t + { + template + friend constexpr bool + operator==(unreachable_sentinel_t, const _It&) noexcept + { return false; } + }; + + inline constexpr unreachable_sentinel_t unreachable_sentinel{}; + + struct default_sentinel_t { }; + inline constexpr default_sentinel_t default_sentinel{}; + + namespace __detail + { + template + constexpr decay_t<_Tp> + __decay_copy(_Tp&& __t) + noexcept(is_nothrow_convertible_v<_Tp, decay_t<_Tp>>) + { return std::forward<_Tp>(__t); } + + template + concept __member_begin = requires(_Tp& __t) + { + { __detail::__decay_copy(__t.begin()) } -> input_or_output_iterator; + }; + + void begin(auto&) = delete; + void begin(const auto&) = delete; + + template + concept __adl_begin = __class_or_enum> + && requires(_Tp& __t) + { + { __detail::__decay_copy(begin(__t)) } -> input_or_output_iterator; + }; + + // Simplified version of std::ranges::begin that only supports lvalues, + // for use by __range_iter_t below. + template + requires is_array_v<_Tp> || __member_begin<_Tp&> || __adl_begin<_Tp&> + auto + __ranges_begin(_Tp& __t) + { + if constexpr (is_array_v<_Tp>) + { + static_assert(sizeof(remove_all_extents_t<_Tp>) != 0, + "not array of incomplete type"); + return __t + 0; + } + else if constexpr (__member_begin<_Tp&>) + return __t.begin(); + else + return begin(__t); + } + + // Implementation of std::ranges::iterator_t, without using ranges::begin. + template + using __range_iter_t + = decltype(__detail::__ranges_begin(std::declval<_Tp&>())); + + } // namespace __detail + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 library concepts +#endif // _ITERATOR_CONCEPTS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/list.tcc b/resources/sources/avr-libstdcpp/include/bits/list.tcc new file mode 100644 index 000000000..ce9e983c5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/list.tcc @@ -0,0 +1,633 @@ +// List implementation (out of line) -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/list.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{list} + */ + +#ifndef _LIST_TCC +#define _LIST_TCC 1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + void + _List_base<_Tp, _Alloc>:: + _M_clear() _GLIBCXX_NOEXCEPT + { + typedef _List_node<_Tp> _Node; + __detail::_List_node_base* __cur = _M_impl._M_node._M_next; + while (__cur != &_M_impl._M_node) + { + _Node* __tmp = static_cast<_Node*>(__cur); + __cur = __tmp->_M_next; + _Tp* __val = __tmp->_M_valptr(); +#if __cplusplus >= 201103L + _Node_alloc_traits::destroy(_M_get_Node_allocator(), __val); +#else + _Tp_alloc_type(_M_get_Node_allocator()).destroy(__val); +#endif + _M_put_node(__tmp); + } + } + +#if __cplusplus >= 201103L + template + template + typename list<_Tp, _Alloc>::iterator + list<_Tp, _Alloc>:: + emplace(const_iterator __position, _Args&&... __args) + { + _Node* __tmp = _M_create_node(std::forward<_Args>(__args)...); + __tmp->_M_hook(__position._M_const_cast()._M_node); + this->_M_inc_size(1); + return iterator(__tmp); + } +#endif + + template + typename list<_Tp, _Alloc>::iterator + list<_Tp, _Alloc>:: +#if __cplusplus >= 201103L + insert(const_iterator __position, const value_type& __x) +#else + insert(iterator __position, const value_type& __x) +#endif + { + _Node* __tmp = _M_create_node(__x); + __tmp->_M_hook(__position._M_const_cast()._M_node); + this->_M_inc_size(1); + return iterator(__tmp); + } + +#if __cplusplus >= 201103L + template + typename list<_Tp, _Alloc>::iterator + list<_Tp, _Alloc>:: + insert(const_iterator __position, size_type __n, const value_type& __x) + { + if (__n) + { + list __tmp(__n, __x, get_allocator()); + iterator __it = __tmp.begin(); + splice(__position, __tmp); + return __it; + } + return __position._M_const_cast(); + } + + template + template + typename list<_Tp, _Alloc>::iterator + list<_Tp, _Alloc>:: + insert(const_iterator __position, _InputIterator __first, + _InputIterator __last) + { + list __tmp(__first, __last, get_allocator()); + if (!__tmp.empty()) + { + iterator __it = __tmp.begin(); + splice(__position, __tmp); + return __it; + } + return __position._M_const_cast(); + } +#endif + + template + typename list<_Tp, _Alloc>::iterator + list<_Tp, _Alloc>:: +#if __cplusplus >= 201103L + erase(const_iterator __position) noexcept +#else + erase(iterator __position) +#endif + { + iterator __ret = iterator(__position._M_node->_M_next); + _M_erase(__position._M_const_cast()); + return __ret; + } + + // Return a const_iterator indicating the position to start inserting or + // erasing elements (depending whether the list is growing or shrinking), + // and set __new_size to the number of new elements that must be appended. + // Equivalent to the following, but performed optimally: + // if (__new_size < size()) { + // __new_size = 0; + // return std::next(begin(), __new_size); + // } else { + // __newsize -= size(); + // return end(); + // } + template + typename list<_Tp, _Alloc>::const_iterator + list<_Tp, _Alloc>:: + _M_resize_pos(size_type& __new_size) const + { + const_iterator __i; +#if _GLIBCXX_USE_CXX11_ABI + const size_type __len = size(); + if (__new_size < __len) + { + if (__new_size <= __len / 2) + { + __i = begin(); + std::advance(__i, __new_size); + } + else + { + __i = end(); + ptrdiff_t __num_erase = __len - __new_size; + std::advance(__i, -__num_erase); + } + __new_size = 0; + return __i; + } + else + __i = end(); +#else + size_type __len = 0; + for (__i = begin(); __i != end() && __len < __new_size; ++__i, ++__len) + ; +#endif + __new_size -= __len; + return __i; + } + +#if __cplusplus >= 201103L + template + void + list<_Tp, _Alloc>:: + _M_default_append(size_type __n) + { + size_type __i = 0; + __try + { + for (; __i < __n; ++__i) + emplace_back(); + } + __catch(...) + { + for (; __i; --__i) + pop_back(); + __throw_exception_again; + } + } + + template + void + list<_Tp, _Alloc>:: + resize(size_type __new_size) + { + const_iterator __i = _M_resize_pos(__new_size); + if (__new_size) + _M_default_append(__new_size); + else + erase(__i, end()); + } + + template + void + list<_Tp, _Alloc>:: + resize(size_type __new_size, const value_type& __x) + { + const_iterator __i = _M_resize_pos(__new_size); + if (__new_size) + insert(end(), __new_size, __x); + else + erase(__i, end()); + } +#else + template + void + list<_Tp, _Alloc>:: + resize(size_type __new_size, value_type __x) + { + const_iterator __i = _M_resize_pos(__new_size); + if (__new_size) + insert(end(), __new_size, __x); + else + erase(__i._M_const_cast(), end()); + } +#endif + + template + list<_Tp, _Alloc>& + list<_Tp, _Alloc>:: + operator=(const list& __x) + { + if (this != std::__addressof(__x)) + { +#if __cplusplus >= 201103L + if (_Node_alloc_traits::_S_propagate_on_copy_assign()) + { + auto& __this_alloc = this->_M_get_Node_allocator(); + auto& __that_alloc = __x._M_get_Node_allocator(); + if (!_Node_alloc_traits::_S_always_equal() + && __this_alloc != __that_alloc) + { + // replacement allocator cannot free existing storage + clear(); + } + std::__alloc_on_copy(__this_alloc, __that_alloc); + } +#endif + _M_assign_dispatch(__x.begin(), __x.end(), __false_type()); + } + return *this; + } + + template + void + list<_Tp, _Alloc>:: + _M_fill_assign(size_type __n, const value_type& __val) + { + iterator __i = begin(); + for (; __i != end() && __n > 0; ++__i, --__n) + *__i = __val; + if (__n > 0) + insert(end(), __n, __val); + else + erase(__i, end()); + } + + template + template + void + list<_Tp, _Alloc>:: + _M_assign_dispatch(_InputIterator __first2, _InputIterator __last2, + __false_type) + { + iterator __first1 = begin(); + iterator __last1 = end(); + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + *__first1 = *__first2; + if (__first2 == __last2) + erase(__first1, __last1); + else + insert(__last1, __first2, __last2); + } + +#if __cplusplus > 201703L +# define _GLIBCXX20_ONLY(__expr) __expr +#else +# define _GLIBCXX20_ONLY(__expr) +#endif + + template + typename list<_Tp, _Alloc>::__remove_return_type + list<_Tp, _Alloc>:: + remove(const value_type& __value) + { + size_type __removed __attribute__((__unused__)) = 0; + iterator __first = begin(); + iterator __last = end(); + iterator __extra = __last; + while (__first != __last) + { + iterator __next = __first; + ++__next; + if (*__first == __value) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 526. Is it undefined if a function in the standard changes + // in parameters? + if (std::__addressof(*__first) != std::__addressof(__value)) + { + _M_erase(__first); + _GLIBCXX20_ONLY( __removed++ ); + } + else + __extra = __first; + } + __first = __next; + } + if (__extra != __last) + { + _M_erase(__extra); + _GLIBCXX20_ONLY( __removed++ ); + } + return _GLIBCXX20_ONLY( __removed ); + } + + template + typename list<_Tp, _Alloc>::__remove_return_type + list<_Tp, _Alloc>:: + unique() + { + iterator __first = begin(); + iterator __last = end(); + if (__first == __last) + return _GLIBCXX20_ONLY( 0 ); + size_type __removed __attribute__((__unused__)) = 0; + iterator __next = __first; + while (++__next != __last) + { + if (*__first == *__next) + { + _M_erase(__next); + _GLIBCXX20_ONLY( __removed++ ); + } + else + __first = __next; + __next = __first; + } + return _GLIBCXX20_ONLY( __removed ); + } + + template + void + list<_Tp, _Alloc>:: +#if __cplusplus >= 201103L + merge(list&& __x) +#else + merge(list& __x) +#endif + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 300. list::merge() specification incomplete + if (this != std::__addressof(__x)) + { + _M_check_equal_allocators(__x); + + iterator __first1 = begin(); + iterator __last1 = end(); + iterator __first2 = __x.begin(); + iterator __last2 = __x.end(); + const size_t __orig_size = __x.size(); + __try { + while (__first1 != __last1 && __first2 != __last2) + if (*__first2 < *__first1) + { + iterator __next = __first2; + _M_transfer(__first1, __first2, ++__next); + __first2 = __next; + } + else + ++__first1; + if (__first2 != __last2) + _M_transfer(__last1, __first2, __last2); + + this->_M_inc_size(__x._M_get_size()); + __x._M_set_size(0); + } + __catch(...) + { + const size_t __dist = std::distance(__first2, __last2); + this->_M_inc_size(__orig_size - __dist); + __x._M_set_size(__dist); + __throw_exception_again; + } + } + } + + template + template + void + list<_Tp, _Alloc>:: +#if __cplusplus >= 201103L + merge(list&& __x, _StrictWeakOrdering __comp) +#else + merge(list& __x, _StrictWeakOrdering __comp) +#endif + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 300. list::merge() specification incomplete + if (this != std::__addressof(__x)) + { + _M_check_equal_allocators(__x); + + iterator __first1 = begin(); + iterator __last1 = end(); + iterator __first2 = __x.begin(); + iterator __last2 = __x.end(); + const size_t __orig_size = __x.size(); + __try + { + while (__first1 != __last1 && __first2 != __last2) + if (__comp(*__first2, *__first1)) + { + iterator __next = __first2; + _M_transfer(__first1, __first2, ++__next); + __first2 = __next; + } + else + ++__first1; + if (__first2 != __last2) + _M_transfer(__last1, __first2, __last2); + + this->_M_inc_size(__x._M_get_size()); + __x._M_set_size(0); + } + __catch(...) + { + const size_t __dist = std::distance(__first2, __last2); + this->_M_inc_size(__orig_size - __dist); + __x._M_set_size(__dist); + __throw_exception_again; + } + } + } + + template + void + list<_Tp, _Alloc>:: + sort() + { + // Do nothing if the list has length 0 or 1. + if (this->_M_impl._M_node._M_next != &this->_M_impl._M_node + && this->_M_impl._M_node._M_next->_M_next != &this->_M_impl._M_node) + { + list __carry; + list __tmp[64]; + list * __fill = __tmp; + list * __counter; + __try + { + do + { + __carry.splice(__carry.begin(), *this, begin()); + + for(__counter = __tmp; + __counter != __fill && !__counter->empty(); + ++__counter) + { + __counter->merge(__carry); + __carry.swap(*__counter); + } + __carry.swap(*__counter); + if (__counter == __fill) + ++__fill; + } + while ( !empty() ); + + for (__counter = __tmp + 1; __counter != __fill; ++__counter) + __counter->merge(*(__counter - 1)); + swap( *(__fill - 1) ); + } + __catch(...) + { + this->splice(this->end(), __carry); + for (int __i = 0; __i < sizeof(__tmp)/sizeof(__tmp[0]); ++__i) + this->splice(this->end(), __tmp[__i]); + __throw_exception_again; + } + } + } + + template + template + typename list<_Tp, _Alloc>::__remove_return_type + list<_Tp, _Alloc>:: + remove_if(_Predicate __pred) + { + size_type __removed __attribute__((__unused__)) = 0; + iterator __first = begin(); + iterator __last = end(); + while (__first != __last) + { + iterator __next = __first; + ++__next; + if (__pred(*__first)) + { + _M_erase(__first); + _GLIBCXX20_ONLY( __removed++ ); + } + __first = __next; + } + return _GLIBCXX20_ONLY( __removed ); + } + + template + template + typename list<_Tp, _Alloc>::__remove_return_type + list<_Tp, _Alloc>:: + unique(_BinaryPredicate __binary_pred) + { + iterator __first = begin(); + iterator __last = end(); + if (__first == __last) + return _GLIBCXX20_ONLY(0); + size_type __removed __attribute__((__unused__)) = 0; + iterator __next = __first; + while (++__next != __last) + { + if (__binary_pred(*__first, *__next)) + { + _M_erase(__next); + _GLIBCXX20_ONLY( __removed++ ); + } + else + __first = __next; + __next = __first; + } + return _GLIBCXX20_ONLY( __removed ); + } + +#undef _GLIBCXX20_ONLY + + template + template + void + list<_Tp, _Alloc>:: + sort(_StrictWeakOrdering __comp) + { + // Do nothing if the list has length 0 or 1. + if (this->_M_impl._M_node._M_next != &this->_M_impl._M_node + && this->_M_impl._M_node._M_next->_M_next != &this->_M_impl._M_node) + { + list __carry; + list __tmp[64]; + list * __fill = __tmp; + list * __counter; + __try + { + do + { + __carry.splice(__carry.begin(), *this, begin()); + + for(__counter = __tmp; + __counter != __fill && !__counter->empty(); + ++__counter) + { + __counter->merge(__carry, __comp); + __carry.swap(*__counter); + } + __carry.swap(*__counter); + if (__counter == __fill) + ++__fill; + } + while ( !empty() ); + + for (__counter = __tmp + 1; __counter != __fill; ++__counter) + __counter->merge(*(__counter - 1), __comp); + swap(*(__fill - 1)); + } + __catch(...) + { + this->splice(this->end(), __carry); + for (int __i = 0; __i < sizeof(__tmp)/sizeof(__tmp[0]); ++__i) + this->splice(this->end(), __tmp[__i]); + __throw_exception_again; + } + } + } + +_GLIBCXX_END_NAMESPACE_CONTAINER +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _LIST_TCC */ + diff --git a/resources/sources/avr-libstdcpp/include/bits/mask_array.h b/resources/sources/avr-libstdcpp/include/bits/mask_array.h new file mode 100644 index 000000000..579cd59e5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/mask_array.h @@ -0,0 +1,213 @@ +// The template and inlines for the -*- C++ -*- mask_array class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/mask_array.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _MASK_ARRAY_H +#define _MASK_ARRAY_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup numeric_arrays + * @{ + */ + + /** + * @brief Reference to selected subset of an array. + * + * A mask_array is a reference to the actual elements of an array specified + * by a bitmask in the form of an array of bool. The way to get a + * mask_array is to call operator[](valarray) on a valarray. The + * returned mask_array then permits carrying operations out on the + * referenced subset of elements in the original valarray. + * + * For example, if a mask_array is obtained using the array (false, true, + * false, true) as an argument, the mask array has two elements referring + * to array[1] and array[3] in the underlying array. + * + * @param Tp Element type. + */ + template + class mask_array + { + public: + typedef _Tp value_type; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 253. valarray helper functions are almost entirely useless + + /// Copy constructor. Both slices refer to the same underlying array. + mask_array (const mask_array&); + + /// Assignment operator. Assigns elements to corresponding elements + /// of @a a. + mask_array& operator=(const mask_array&); + + void operator=(const valarray<_Tp>&) const; + /// Multiply slice elements by corresponding elements of @a v. + void operator*=(const valarray<_Tp>&) const; + /// Divide slice elements by corresponding elements of @a v. + void operator/=(const valarray<_Tp>&) const; + /// Modulo slice elements by corresponding elements of @a v. + void operator%=(const valarray<_Tp>&) const; + /// Add corresponding elements of @a v to slice elements. + void operator+=(const valarray<_Tp>&) const; + /// Subtract corresponding elements of @a v from slice elements. + void operator-=(const valarray<_Tp>&) const; + /// Logical xor slice elements with corresponding elements of @a v. + void operator^=(const valarray<_Tp>&) const; + /// Logical and slice elements with corresponding elements of @a v. + void operator&=(const valarray<_Tp>&) const; + /// Logical or slice elements with corresponding elements of @a v. + void operator|=(const valarray<_Tp>&) const; + /// Left shift slice elements by corresponding elements of @a v. + void operator<<=(const valarray<_Tp>&) const; + /// Right shift slice elements by corresponding elements of @a v. + void operator>>=(const valarray<_Tp>&) const; + /// Assign all slice elements to @a t. + void operator=(const _Tp&) const; + + // ~mask_array (); + + template + void operator=(const _Expr<_Dom,_Tp>&) const; + template + void operator*=(const _Expr<_Dom,_Tp>&) const; + template + void operator/=(const _Expr<_Dom,_Tp>&) const; + template + void operator%=(const _Expr<_Dom,_Tp>&) const; + template + void operator+=(const _Expr<_Dom,_Tp>&) const; + template + void operator-=(const _Expr<_Dom,_Tp>&) const; + template + void operator^=(const _Expr<_Dom,_Tp>&) const; + template + void operator&=(const _Expr<_Dom,_Tp>&) const; + template + void operator|=(const _Expr<_Dom,_Tp>&) const; + template + void operator<<=(const _Expr<_Dom,_Tp>&) const; + template + void operator>>=(const _Expr<_Dom,_Tp>&) const; + + private: + mask_array(_Array<_Tp>, size_t, _Array); + friend class valarray<_Tp>; + + const size_t _M_sz; + const _Array _M_mask; + const _Array<_Tp> _M_array; + +#if __cplusplus < 201103L + // not implemented + mask_array(); +#else + public: + mask_array() = delete; +#endif + }; + + template + inline mask_array<_Tp>::mask_array(const mask_array<_Tp>& __a) + : _M_sz(__a._M_sz), _M_mask(__a._M_mask), _M_array(__a._M_array) {} + + template + inline + mask_array<_Tp>::mask_array(_Array<_Tp> __a, size_t __s, _Array __m) + : _M_sz(__s), _M_mask(__m), _M_array(__a) {} + + template + inline mask_array<_Tp>& + mask_array<_Tp>::operator=(const mask_array<_Tp>& __a) + { + std::__valarray_copy(__a._M_array, __a._M_mask, + _M_sz, _M_array, _M_mask); + return *this; + } + + template + inline void + mask_array<_Tp>::operator=(const _Tp& __t) const + { std::__valarray_fill(_M_array, _M_sz, _M_mask, __t); } + + template + inline void + mask_array<_Tp>::operator=(const valarray<_Tp>& __v) const + { std::__valarray_copy(_Array<_Tp>(__v), __v.size(), _M_array, _M_mask); } + + template + template + inline void + mask_array<_Tp>::operator=(const _Expr<_Ex, _Tp>& __e) const + { std::__valarray_copy(__e, __e.size(), _M_array, _M_mask); } + +#undef _DEFINE_VALARRAY_OPERATOR +#define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \ + template \ + inline void \ + mask_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ + { \ + _Array_augmented_##_Name(_M_array, _M_mask, \ + _Array<_Tp>(__v), __v.size()); \ + } \ + \ + template \ + template \ + inline void \ + mask_array<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) const\ + { \ + _Array_augmented_##_Name(_M_array, _M_mask, __e, __e.size()); \ + } + +_DEFINE_VALARRAY_OPERATOR(*, __multiplies) +_DEFINE_VALARRAY_OPERATOR(/, __divides) +_DEFINE_VALARRAY_OPERATOR(%, __modulus) +_DEFINE_VALARRAY_OPERATOR(+, __plus) +_DEFINE_VALARRAY_OPERATOR(-, __minus) +_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) +_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) +_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) +_DEFINE_VALARRAY_OPERATOR(<<, __shift_left) +_DEFINE_VALARRAY_OPERATOR(>>, __shift_right) + +#undef _DEFINE_VALARRAY_OPERATOR + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _MASK_ARRAY_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/memoryfwd.h b/resources/sources/avr-libstdcpp/include/bits/memoryfwd.h new file mode 100644 index 000000000..af1a1c69c --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/memoryfwd.h @@ -0,0 +1,82 @@ +// Forward declarations -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996-1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/memoryfwd.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _MEMORYFWD_H +#define _MEMORYFWD_H 1 + +#pragma GCC system_header + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup allocators Allocators + * @ingroup memory + * + * Classes encapsulating memory operations. + * + * @{ + */ + + template + class allocator; + +#if __cplusplus <= 201703L + template<> + class allocator; +#endif + +#if __cplusplus >= 201103L + /// Declare uses_allocator so it can be specialized in \ etc. + template + struct uses_allocator; +#endif + + /// @} group memory + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/move.h b/resources/sources/avr-libstdcpp/include/bits/move.h new file mode 100644 index 000000000..5a4dbdc82 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/move.h @@ -0,0 +1,224 @@ +// Move, forward and identity for C++11 + swap -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/move.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{utility} + */ + +#ifndef _MOVE_H +#define _MOVE_H 1 + +#include +#if __cplusplus < 201103L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Used, in C++03 mode too, by allocators, etc. + /** + * @brief Same as C++11 std::addressof + * @ingroup utilities + */ + template + inline _GLIBCXX_CONSTEXPR _Tp* + __addressof(_Tp& __r) _GLIBCXX_NOEXCEPT + { return __builtin_addressof(__r); } + +#if __cplusplus >= 201103L + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#include // Brings in std::declval too. + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup utilities + * @{ + */ + + /** + * @brief Forward an lvalue. + * @return The parameter cast to the specified type. + * + * This function is used to implement "perfect forwarding". + */ + template + constexpr _Tp&& + forward(typename std::remove_reference<_Tp>::type& __t) noexcept + { return static_cast<_Tp&&>(__t); } + + /** + * @brief Forward an rvalue. + * @return The parameter cast to the specified type. + * + * This function is used to implement "perfect forwarding". + */ + template + constexpr _Tp&& + forward(typename std::remove_reference<_Tp>::type&& __t) noexcept + { + static_assert(!std::is_lvalue_reference<_Tp>::value, "template argument" + " substituting _Tp is an lvalue reference type"); + return static_cast<_Tp&&>(__t); + } + + /** + * @brief Convert a value to an rvalue. + * @param __t A thing of arbitrary type. + * @return The parameter cast to an rvalue-reference to allow moving it. + */ + template + constexpr typename std::remove_reference<_Tp>::type&& + move(_Tp&& __t) noexcept + { return static_cast::type&&>(__t); } + + + template + struct __move_if_noexcept_cond + : public __and_<__not_>, + is_copy_constructible<_Tp>>::type { }; + + /** + * @brief Conditionally convert a value to an rvalue. + * @param __x A thing of arbitrary type. + * @return The parameter, possibly cast to an rvalue-reference. + * + * Same as std::move unless the type's move constructor could throw and the + * type is copyable, in which case an lvalue-reference is returned instead. + */ + template + constexpr typename + conditional<__move_if_noexcept_cond<_Tp>::value, const _Tp&, _Tp&&>::type + move_if_noexcept(_Tp& __x) noexcept + { return std::move(__x); } + + // declval, from type_traits. + +#if __cplusplus > 201402L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2296. std::addressof should be constexpr +# define __cpp_lib_addressof_constexpr 201603 +#endif + /** + * @brief Returns the actual address of the object or function + * referenced by r, even in the presence of an overloaded + * operator&. + * @param __r Reference to an object or function. + * @return The actual address. + */ + template + inline _GLIBCXX17_CONSTEXPR _Tp* + addressof(_Tp& __r) noexcept + { return std::__addressof(__r); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2598. addressof works on temporaries + template + const _Tp* addressof(const _Tp&&) = delete; + + // C++11 version of std::exchange for internal use. + template + _GLIBCXX20_CONSTEXPR + inline _Tp + __exchange(_Tp& __obj, _Up&& __new_val) + { + _Tp __old_val = std::move(__obj); + __obj = std::forward<_Up>(__new_val); + return __old_val; + } + + /// @} group utilities + +#define _GLIBCXX_MOVE(__val) std::move(__val) +#define _GLIBCXX_FORWARD(_Tp, __val) std::forward<_Tp>(__val) +#else +#define _GLIBCXX_MOVE(__val) (__val) +#define _GLIBCXX_FORWARD(_Tp, __val) (__val) +#endif + + /** + * @addtogroup utilities + * @{ + */ + + /** + * @brief Swaps two values. + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @return Nothing. + */ + template + _GLIBCXX20_CONSTEXPR + inline +#if __cplusplus >= 201103L + typename enable_if<__and_<__not_<__is_tuple_like<_Tp>>, + is_move_constructible<_Tp>, + is_move_assignable<_Tp>>::value>::type +#else + void +#endif + swap(_Tp& __a, _Tp& __b) + _GLIBCXX_NOEXCEPT_IF(__and_, + is_nothrow_move_assignable<_Tp>>::value) + { +#if __cplusplus < 201103L + // concept requirements + __glibcxx_function_requires(_SGIAssignableConcept<_Tp>) +#endif + _Tp __tmp = _GLIBCXX_MOVE(__a); + __a = _GLIBCXX_MOVE(__b); + __b = _GLIBCXX_MOVE(__tmp); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 809. std::swap should be overloaded for array types. + /// Swap the contents of two arrays. + template + _GLIBCXX20_CONSTEXPR + inline +#if __cplusplus >= 201103L + typename enable_if<__is_swappable<_Tp>::value>::type +#else + void +#endif + swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm]) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Tp>::value) + { + for (size_t __n = 0; __n < _Nm; ++__n) + swap(__a[__n], __b[__n]); + } + + /// @} group utilities +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _MOVE_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/node_handle.h b/resources/sources/avr-libstdcpp/include/bits/node_handle.h new file mode 100644 index 000000000..cbf95f045 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/node_handle.h @@ -0,0 +1,299 @@ +// Node handles for containers -*- C++ -*- + +// Copyright (C) 2016-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/node_handle.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. + * @headername{map,set,unordered_map,unordered_set} + */ + +#ifndef _NODE_HANDLE +#define _NODE_HANDLE 1 + +#pragma GCC system_header + +#if __cplusplus > 201402L +# define __cpp_lib_node_extract 201606 + +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// Base class for node handle types of maps and sets. + template + class _Node_handle_common + { + using _AllocTraits = allocator_traits<_NodeAlloc>; + + public: + using allocator_type = __alloc_rebind<_NodeAlloc, _Val>; + + allocator_type + get_allocator() const noexcept + { + __glibcxx_assert(!this->empty()); + return allocator_type(*_M_alloc); + } + + explicit operator bool() const noexcept { return _M_ptr != nullptr; } + + [[nodiscard]] bool empty() const noexcept { return _M_ptr == nullptr; } + + protected: + constexpr _Node_handle_common() noexcept : _M_ptr(), _M_alloc() {} + + ~_Node_handle_common() { _M_destroy(); } + + _Node_handle_common(_Node_handle_common&& __nh) noexcept + : _M_ptr(__nh._M_ptr), _M_alloc(std::move(__nh._M_alloc)) + { + __nh._M_ptr = nullptr; + __nh._M_alloc = nullopt; + } + + _Node_handle_common& + operator=(_Node_handle_common&& __nh) noexcept + { + _M_destroy(); + _M_ptr = __nh._M_ptr; + if constexpr (is_move_assignable_v<_NodeAlloc>) + { + if (_AllocTraits::propagate_on_container_move_assignment::value + || !this->_M_alloc) + this->_M_alloc = std::move(__nh._M_alloc); + else + { + __glibcxx_assert(this->_M_alloc == __nh._M_alloc); + } + } + else + { + __glibcxx_assert(_M_alloc); + } + __nh._M_ptr = nullptr; + __nh._M_alloc = nullopt; + return *this; + } + + _Node_handle_common(typename _AllocTraits::pointer __ptr, + const _NodeAlloc& __alloc) + : _M_ptr(__ptr), _M_alloc(__alloc) { } + + void + _M_swap(_Node_handle_common& __nh) noexcept + { + using std::swap; + swap(_M_ptr, __nh._M_ptr); + if (_AllocTraits::propagate_on_container_swap::value + || !_M_alloc || !__nh._M_alloc) + _M_alloc.swap(__nh._M_alloc); + else + { + __glibcxx_assert(_M_alloc == __nh._M_alloc); + } + } + + private: + void + _M_destroy() noexcept + { + if (_M_ptr != nullptr) + { + allocator_type __alloc(*_M_alloc); + allocator_traits::destroy(__alloc, + _M_ptr->_M_valptr()); + _AllocTraits::deallocate(*_M_alloc, _M_ptr, 1); + } + } + + protected: + typename _AllocTraits::pointer _M_ptr; + private: + optional<_NodeAlloc> _M_alloc; + + template + friend class _Rb_tree; + }; + + /// Node handle type for maps. + template + class _Node_handle : public _Node_handle_common<_Value, _NodeAlloc> + { + public: + constexpr _Node_handle() noexcept = default; + ~_Node_handle() = default; + _Node_handle(_Node_handle&&) noexcept = default; + + _Node_handle& + operator=(_Node_handle&&) noexcept = default; + + using key_type = _Key; + using mapped_type = typename _Value::second_type; + + key_type& + key() const noexcept + { + __glibcxx_assert(!this->empty()); + return *_M_pkey; + } + + mapped_type& + mapped() const noexcept + { + __glibcxx_assert(!this->empty()); + return *_M_pmapped; + } + + void + swap(_Node_handle& __nh) noexcept + { + this->_M_swap(__nh); + using std::swap; + swap(_M_pkey, __nh._M_pkey); + swap(_M_pmapped, __nh._M_pmapped); + } + + friend void + swap(_Node_handle& __x, _Node_handle& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + private: + using _AllocTraits = allocator_traits<_NodeAlloc>; + + _Node_handle(typename _AllocTraits::pointer __ptr, + const _NodeAlloc& __alloc) + : _Node_handle_common<_Value, _NodeAlloc>(__ptr, __alloc) + { + if (__ptr) + { + auto& __key = const_cast<_Key&>(__ptr->_M_valptr()->first); + _M_pkey = _S_pointer_to(__key); + _M_pmapped = _S_pointer_to(__ptr->_M_valptr()->second); + } + else + { + _M_pkey = nullptr; + _M_pmapped = nullptr; + } + } + + template + using __pointer + = __ptr_rebind>; + + __pointer<_Key> _M_pkey = nullptr; + __pointer _M_pmapped = nullptr; + + template + __pointer<_Tp> + _S_pointer_to(_Tp& __obj) + { return pointer_traits<__pointer<_Tp>>::pointer_to(__obj); } + + const key_type& + _M_key() const noexcept { return key(); } + + template + friend class _Rb_tree; + + template + friend class _Hashtable; + }; + + /// Node handle type for sets. + template + class _Node_handle<_Value, _Value, _NodeAlloc> + : public _Node_handle_common<_Value, _NodeAlloc> + { + public: + constexpr _Node_handle() noexcept = default; + ~_Node_handle() = default; + _Node_handle(_Node_handle&&) noexcept = default; + + _Node_handle& + operator=(_Node_handle&&) noexcept = default; + + using value_type = _Value; + + value_type& + value() const noexcept + { + __glibcxx_assert(!this->empty()); + return *this->_M_ptr->_M_valptr(); + } + + void + swap(_Node_handle& __nh) noexcept + { this->_M_swap(__nh); } + + friend void + swap(_Node_handle& __x, _Node_handle& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + private: + using _AllocTraits = allocator_traits<_NodeAlloc>; + + _Node_handle(typename _AllocTraits::pointer __ptr, + const _NodeAlloc& __alloc) + : _Node_handle_common<_Value, _NodeAlloc>(__ptr, __alloc) { } + + const value_type& + _M_key() const noexcept { return value(); } + + template + friend class _Rb_tree; + + template + friend class _Hashtable; + }; + + /// Return type of insert(node_handle&&) on unique maps/sets. + template + struct _Node_insert_return + { + _Iterator position = _Iterator(); + bool inserted = false; + _NodeHandle node; + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++17 +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/parse_numbers.h b/resources/sources/avr-libstdcpp/include/bits/parse_numbers.h new file mode 100644 index 000000000..5e80907af --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/parse_numbers.h @@ -0,0 +1,294 @@ +// Components for compile-time parsing of numbers -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/parse_numbers.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{chrono} + */ + +#ifndef _GLIBCXX_PARSE_NUMBERS_H +#define _GLIBCXX_PARSE_NUMBERS_H 1 + +#pragma GCC system_header + +// From n3642.pdf except I added binary literals and digit separator '\''. + +#if __cplusplus >= 201402L + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +namespace __parse_int +{ + template + struct _Digit; + + template + struct _Digit<_Base, '0'> : integral_constant + { + using __valid = true_type; + }; + + template + struct _Digit<_Base, '1'> : integral_constant + { + using __valid = true_type; + }; + + template + struct _Digit_impl : integral_constant + { + static_assert(_Base > _Val, "invalid digit"); + using __valid = true_type; + }; + + template + struct _Digit<_Base, '2'> : _Digit_impl<_Base, 2> + { }; + + template + struct _Digit<_Base, '3'> : _Digit_impl<_Base, 3> + { }; + + template + struct _Digit<_Base, '4'> : _Digit_impl<_Base, 4> + { }; + + template + struct _Digit<_Base, '5'> : _Digit_impl<_Base, 5> + { }; + + template + struct _Digit<_Base, '6'> : _Digit_impl<_Base, 6> + { }; + + template + struct _Digit<_Base, '7'> : _Digit_impl<_Base, 7> + { }; + + template + struct _Digit<_Base, '8'> : _Digit_impl<_Base, 8> + { }; + + template + struct _Digit<_Base, '9'> : _Digit_impl<_Base, 9> + { }; + + template + struct _Digit<_Base, 'a'> : _Digit_impl<_Base, 0xa> + { }; + + template + struct _Digit<_Base, 'A'> : _Digit_impl<_Base, 0xa> + { }; + + template + struct _Digit<_Base, 'b'> : _Digit_impl<_Base, 0xb> + { }; + + template + struct _Digit<_Base, 'B'> : _Digit_impl<_Base, 0xb> + { }; + + template + struct _Digit<_Base, 'c'> : _Digit_impl<_Base, 0xc> + { }; + + template + struct _Digit<_Base, 'C'> : _Digit_impl<_Base, 0xc> + { }; + + template + struct _Digit<_Base, 'd'> : _Digit_impl<_Base, 0xd> + { }; + + template + struct _Digit<_Base, 'D'> : _Digit_impl<_Base, 0xd> + { }; + + template + struct _Digit<_Base, 'e'> : _Digit_impl<_Base, 0xe> + { }; + + template + struct _Digit<_Base, 'E'> : _Digit_impl<_Base, 0xe> + { }; + + template + struct _Digit<_Base, 'f'> : _Digit_impl<_Base, 0xf> + { }; + + template + struct _Digit<_Base, 'F'> : _Digit_impl<_Base, 0xf> + { }; + + // Digit separator + template + struct _Digit<_Base, '\''> : integral_constant + { + using __valid = false_type; + }; + +//------------------------------------------------------------------------------ + + template + using __ull_constant = integral_constant; + + template + struct _Power_help + { + using __next = typename _Power_help<_Base, _Digs...>::type; + using __valid_digit = typename _Digit<_Base, _Dig>::__valid; + using type + = __ull_constant<__next::value * (__valid_digit{} ? _Base : 1ULL)>; + }; + + template + struct _Power_help<_Base, _Dig> + { + using __valid_digit = typename _Digit<_Base, _Dig>::__valid; + using type = __ull_constant<__valid_digit::value>; + }; + + template + struct _Power : _Power_help<_Base, _Digs...>::type + { }; + + template + struct _Power<_Base> : __ull_constant<0> + { }; + +//------------------------------------------------------------------------------ + + template + struct _Number_help + { + using __digit = _Digit<_Base, _Dig>; + using __valid_digit = typename __digit::__valid; + using __next = _Number_help<_Base, + __valid_digit::value ? _Pow / _Base : _Pow, + _Digs...>; + using type = __ull_constant<_Pow * __digit::value + __next::type::value>; + static_assert((type::value / _Pow) == __digit::value, + "integer literal does not fit in unsigned long long"); + }; + + // Skip past digit separators: + template + struct _Number_help<_Base, _Pow, '\'', _Dig, _Digs...> + : _Number_help<_Base, _Pow, _Dig, _Digs...> + { }; + + // Terminating case for recursion: + template + struct _Number_help<_Base, 1ULL, _Dig> + { + using type = __ull_constant<_Digit<_Base, _Dig>::value>; + }; + + template + struct _Number + : _Number_help<_Base, _Power<_Base, _Digs...>::value, _Digs...>::type + { }; + + template + struct _Number<_Base> + : __ull_constant<0> + { }; + +//------------------------------------------------------------------------------ + + template + struct _Parse_int; + + template + struct _Parse_int<'0', 'b', _Digs...> + : _Number<2U, _Digs...>::type + { }; + + template + struct _Parse_int<'0', 'B', _Digs...> + : _Number<2U, _Digs...>::type + { }; + + template + struct _Parse_int<'0', 'x', _Digs...> + : _Number<16U, _Digs...>::type + { }; + + template + struct _Parse_int<'0', 'X', _Digs...> + : _Number<16U, _Digs...>::type + { }; + + template + struct _Parse_int<'0', _Digs...> + : _Number<8U, _Digs...>::type + { }; + + template + struct _Parse_int + : _Number<10U, _Digs...>::type + { }; + +} // namespace __parse_int + + +namespace __select_int +{ + template + struct _Select_int_base; + + template + struct _Select_int_base<_Val, _IntType, _Ints...> + : conditional_t<(_Val <= __gnu_cxx::__int_traits<_IntType>::__max), + integral_constant<_IntType, _Val>, + _Select_int_base<_Val, _Ints...>> + { }; + + template + struct _Select_int_base<_Val> + { }; + + template + using _Select_int = typename _Select_int_base< + __parse_int::_Parse_int<_Digs...>::value, + unsigned char, + unsigned short, + unsigned int, + unsigned long, + unsigned long long + >::type; + +} // namespace __select_int + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++14 + +#endif // _GLIBCXX_PARSE_NUMBERS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/postypes.h b/resources/sources/avr-libstdcpp/include/bits/postypes.h new file mode 100644 index 000000000..718ff4462 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/postypes.h @@ -0,0 +1,253 @@ +// Position types -*- C++ -*- + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/postypes.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iosfwd} + */ + +// +// ISO C++ 14882: 27.4.1 - Types +// ISO C++ 14882: 27.4.3 - Template class fpos +// + +#ifndef _GLIBCXX_POSTYPES_H +#define _GLIBCXX_POSTYPES_H 1 + +#pragma GCC system_header + +#include // For mbstate_t + +// XXX If is really needed, make sure to define the macros +// before including it, in order not to break (and +// in C++11). Reconsider all this as soon as possible... +#if (defined(_GLIBCXX_HAVE_INT64_T) && !defined(_GLIBCXX_HAVE_INT64_T_LONG) \ + && !defined(_GLIBCXX_HAVE_INT64_T_LONG_LONG)) + +#ifndef __STDC_LIMIT_MACROS +# define _UNDEF__STDC_LIMIT_MACROS +# define __STDC_LIMIT_MACROS +#endif +#ifndef __STDC_CONSTANT_MACROS +# define _UNDEF__STDC_CONSTANT_MACROS +# define __STDC_CONSTANT_MACROS +#endif +#include // For int64_t +#ifdef _UNDEF__STDC_LIMIT_MACROS +# undef __STDC_LIMIT_MACROS +# undef _UNDEF__STDC_LIMIT_MACROS +#endif +#ifdef _UNDEF__STDC_CONSTANT_MACROS +# undef __STDC_CONSTANT_MACROS +# undef _UNDEF__STDC_CONSTANT_MACROS +#endif + +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // The types streamoff, streampos and wstreampos and the class + // template fpos<> are described in clauses 21.1.2, 21.1.3, 27.1.2, + // 27.2, 27.4.1, 27.4.3 and D.6. Despite all this verbiage, the + // behaviour of these types is mostly implementation defined or + // unspecified. The behaviour in this implementation is as noted + // below. + + /** + * @brief Type used by fpos, char_traits, and char_traits. + * + * In clauses 21.1.3.1 and 27.4.1 streamoff is described as an + * implementation defined type. + * Note: In versions of GCC up to and including GCC 3.3, streamoff + * was typedef long. + */ +#ifdef _GLIBCXX_HAVE_INT64_T_LONG + typedef long streamoff; +#elif defined(_GLIBCXX_HAVE_INT64_T_LONG_LONG) + typedef long long streamoff; +#elif defined(_GLIBCXX_HAVE_INT64_T) + typedef int64_t streamoff; +#else + typedef long long streamoff; +#endif + + /// Integral type for I/O operation counts and buffer sizes. + typedef ptrdiff_t streamsize; // Signed integral type + + /** + * @brief Class representing stream positions. + * + * The standard places no requirements upon the template parameter StateT. + * In this implementation StateT must be DefaultConstructible, + * CopyConstructible and Assignable. The standard only requires that fpos + * should contain a member of type StateT. In this implementation it also + * contains an offset stored as a signed integer. + * + * @param StateT Type passed to and returned from state(). + */ + template + class fpos + { + private: + streamoff _M_off; + _StateT _M_state; + + public: + // The standard doesn't require that fpos objects can be default + // constructed. This implementation provides a default + // constructor that initializes the offset to 0 and default + // constructs the state. + fpos() + : _M_off(0), _M_state() { } + + // The standard requires that fpos objects can be constructed + // from streamoff objects using the constructor syntax, and + // fails to give any meaningful semantics. In this + // implementation implicit conversion is also allowed, and this + // constructor stores the streamoff as the offset and default + // constructs the state. + /// Construct position from offset. + fpos(streamoff __off) + : _M_off(__off), _M_state() { } + +#if __cplusplus >= 201103L + fpos(const fpos&) = default; + fpos& operator=(const fpos&) = default; + ~fpos() = default; +#endif + + /// Convert to streamoff. + operator streamoff() const { return _M_off; } + + /// Remember the value of @a st. + void + state(_StateT __st) + { _M_state = __st; } + + /// Return the last set value of @a st. + _StateT + state() const + { return _M_state; } + + // The standard requires that this operator must be defined, but + // gives no semantics. In this implementation it just adds its + // argument to the stored offset and returns *this. + /// Add offset to this position. + fpos& + operator+=(streamoff __off) + { + _M_off += __off; + return *this; + } + + // The standard requires that this operator must be defined, but + // gives no semantics. In this implementation it just subtracts + // its argument from the stored offset and returns *this. + /// Subtract offset from this position. + fpos& + operator-=(streamoff __off) + { + _M_off -= __off; + return *this; + } + + // The standard requires that this operator must be defined, but + // defines its semantics only in terms of operator-. In this + // implementation it constructs a copy of *this, adds the + // argument to that copy using operator+= and then returns the + // copy. + /// Add position and offset. + fpos + operator+(streamoff __off) const + { + fpos __pos(*this); + __pos += __off; + return __pos; + } + + // The standard requires that this operator must be defined, but + // defines its semantics only in terms of operator+. In this + // implementation it constructs a copy of *this, subtracts the + // argument from that copy using operator-= and then returns the + // copy. + /// Subtract offset from position. + fpos + operator-(streamoff __off) const + { + fpos __pos(*this); + __pos -= __off; + return __pos; + } + + // The standard requires that this operator must be defined, but + // defines its semantics only in terms of operator+. In this + // implementation it returns the difference between the offset + // stored in *this and in the argument. + /// Subtract position to return offset. + streamoff + operator-(const fpos& __other) const + { return _M_off - __other._M_off; } + }; + + // The standard only requires that operator== must be an + // equivalence relation. In this implementation two fpos + // objects belong to the same equivalence class if the contained + // offsets compare equal. + /// Test if equivalent to another position. + template + inline bool + operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) + { return streamoff(__lhs) == streamoff(__rhs); } + + template + inline bool + operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) + { return streamoff(__lhs) != streamoff(__rhs); } + + // Clauses 21.1.3.1 and 21.1.3.2 describe streampos and wstreampos + // as implementation defined types, but clause 27.2 requires that + // they must both be typedefs for fpos + /// File position for char streams. + typedef fpos streampos; + /// File position for wchar_t streams. + typedef fpos wstreampos; + +#ifdef _GLIBCXX_USE_CHAR8_T + /// File position for char8_t streams. + typedef fpos u8streampos; +#endif + +#if __cplusplus >= 201103L + /// File position for char16_t streams. + typedef fpos u16streampos; + /// File position for char32_t streams. + typedef fpos u32streampos; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/predefined_ops.h b/resources/sources/avr-libstdcpp/include/bits/predefined_ops.h new file mode 100644 index 000000000..7ac9a467d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/predefined_ops.h @@ -0,0 +1,405 @@ +// Default predicates for internal use -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file predefined_ops.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. @headername{algorithm} + */ + +#ifndef _GLIBCXX_PREDEFINED_OPS_H +#define _GLIBCXX_PREDEFINED_OPS_H 1 + +namespace __gnu_cxx +{ +namespace __ops +{ + struct _Iter_less_iter + { + template + _GLIBCXX14_CONSTEXPR + bool + operator()(_Iterator1 __it1, _Iterator2 __it2) const + { return *__it1 < *__it2; } + }; + + _GLIBCXX14_CONSTEXPR + inline _Iter_less_iter + __iter_less_iter() + { return _Iter_less_iter(); } + + struct _Iter_less_val + { +#if __cplusplus >= 201103L + constexpr _Iter_less_val() = default; +#else + _Iter_less_val() { } +#endif + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_less_val(_Iter_less_iter) { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it, _Value& __val) const + { return *__it < __val; } + }; + + _GLIBCXX20_CONSTEXPR + inline _Iter_less_val + __iter_less_val() + { return _Iter_less_val(); } + + _GLIBCXX20_CONSTEXPR + inline _Iter_less_val + __iter_comp_val(_Iter_less_iter) + { return _Iter_less_val(); } + + struct _Val_less_iter + { +#if __cplusplus >= 201103L + constexpr _Val_less_iter() = default; +#else + _Val_less_iter() { } +#endif + + _GLIBCXX20_CONSTEXPR + explicit + _Val_less_iter(_Iter_less_iter) { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Value& __val, _Iterator __it) const + { return __val < *__it; } + }; + + _GLIBCXX20_CONSTEXPR + inline _Val_less_iter + __val_less_iter() + { return _Val_less_iter(); } + + _GLIBCXX20_CONSTEXPR + inline _Val_less_iter + __val_comp_iter(_Iter_less_iter) + { return _Val_less_iter(); } + + struct _Iter_equal_to_iter + { + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator1 __it1, _Iterator2 __it2) const + { return *__it1 == *__it2; } + }; + + _GLIBCXX20_CONSTEXPR + inline _Iter_equal_to_iter + __iter_equal_to_iter() + { return _Iter_equal_to_iter(); } + + struct _Iter_equal_to_val + { + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it, _Value& __val) const + { return *__it == __val; } + }; + + _GLIBCXX20_CONSTEXPR + inline _Iter_equal_to_val + __iter_equal_to_val() + { return _Iter_equal_to_val(); } + + _GLIBCXX20_CONSTEXPR + inline _Iter_equal_to_val + __iter_comp_val(_Iter_equal_to_iter) + { return _Iter_equal_to_val(); } + + template + struct _Iter_comp_iter + { + _Compare _M_comp; + + explicit _GLIBCXX14_CONSTEXPR + _Iter_comp_iter(_Compare __comp) + : _M_comp(_GLIBCXX_MOVE(__comp)) + { } + + template + _GLIBCXX14_CONSTEXPR + bool + operator()(_Iterator1 __it1, _Iterator2 __it2) + { return bool(_M_comp(*__it1, *__it2)); } + }; + + template + _GLIBCXX14_CONSTEXPR + inline _Iter_comp_iter<_Compare> + __iter_comp_iter(_Compare __comp) + { return _Iter_comp_iter<_Compare>(_GLIBCXX_MOVE(__comp)); } + + template + struct _Iter_comp_val + { + _Compare _M_comp; + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_comp_val(_Compare __comp) + : _M_comp(_GLIBCXX_MOVE(__comp)) + { } + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_comp_val(const _Iter_comp_iter<_Compare>& __comp) + : _M_comp(__comp._M_comp) + { } + +#if __cplusplus >= 201103L + _GLIBCXX20_CONSTEXPR + explicit + _Iter_comp_val(_Iter_comp_iter<_Compare>&& __comp) + : _M_comp(std::move(__comp._M_comp)) + { } +#endif + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it, _Value& __val) + { return bool(_M_comp(*__it, __val)); } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_comp_val<_Compare> + __iter_comp_val(_Compare __comp) + { return _Iter_comp_val<_Compare>(_GLIBCXX_MOVE(__comp)); } + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_comp_val<_Compare> + __iter_comp_val(_Iter_comp_iter<_Compare> __comp) + { return _Iter_comp_val<_Compare>(_GLIBCXX_MOVE(__comp)); } + + template + struct _Val_comp_iter + { + _Compare _M_comp; + + _GLIBCXX20_CONSTEXPR + explicit + _Val_comp_iter(_Compare __comp) + : _M_comp(_GLIBCXX_MOVE(__comp)) + { } + + _GLIBCXX20_CONSTEXPR + explicit + _Val_comp_iter(const _Iter_comp_iter<_Compare>& __comp) + : _M_comp(__comp._M_comp) + { } + +#if __cplusplus >= 201103L + _GLIBCXX20_CONSTEXPR + explicit + _Val_comp_iter(_Iter_comp_iter<_Compare>&& __comp) + : _M_comp(std::move(__comp._M_comp)) + { } +#endif + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Value& __val, _Iterator __it) + { return bool(_M_comp(__val, *__it)); } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Val_comp_iter<_Compare> + __val_comp_iter(_Compare __comp) + { return _Val_comp_iter<_Compare>(_GLIBCXX_MOVE(__comp)); } + + template + _GLIBCXX20_CONSTEXPR + inline _Val_comp_iter<_Compare> + __val_comp_iter(_Iter_comp_iter<_Compare> __comp) + { return _Val_comp_iter<_Compare>(_GLIBCXX_MOVE(__comp)); } + + template + struct _Iter_equals_val + { + _Value& _M_value; + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_equals_val(_Value& __value) + : _M_value(__value) + { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it) + { return *__it == _M_value; } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_equals_val<_Value> + __iter_equals_val(_Value& __val) + { return _Iter_equals_val<_Value>(__val); } + + template + struct _Iter_equals_iter + { + _Iterator1 _M_it1; + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_equals_iter(_Iterator1 __it1) + : _M_it1(__it1) + { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator2 __it2) + { return *__it2 == *_M_it1; } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_equals_iter<_Iterator> + __iter_comp_iter(_Iter_equal_to_iter, _Iterator __it) + { return _Iter_equals_iter<_Iterator>(__it); } + + template + struct _Iter_pred + { + _Predicate _M_pred; + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_pred(_Predicate __pred) + : _M_pred(_GLIBCXX_MOVE(__pred)) + { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it) + { return bool(_M_pred(*__it)); } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_pred<_Predicate> + __pred_iter(_Predicate __pred) + { return _Iter_pred<_Predicate>(_GLIBCXX_MOVE(__pred)); } + + template + struct _Iter_comp_to_val + { + _Compare _M_comp; + _Value& _M_value; + + _GLIBCXX20_CONSTEXPR + _Iter_comp_to_val(_Compare __comp, _Value& __value) + : _M_comp(_GLIBCXX_MOVE(__comp)), _M_value(__value) + { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it) + { return bool(_M_comp(*__it, _M_value)); } + }; + + template + _Iter_comp_to_val<_Compare, _Value> + _GLIBCXX20_CONSTEXPR + __iter_comp_val(_Compare __comp, _Value &__val) + { + return _Iter_comp_to_val<_Compare, _Value>(_GLIBCXX_MOVE(__comp), __val); + } + + template + struct _Iter_comp_to_iter + { + _Compare _M_comp; + _Iterator1 _M_it1; + + _GLIBCXX20_CONSTEXPR + _Iter_comp_to_iter(_Compare __comp, _Iterator1 __it1) + : _M_comp(_GLIBCXX_MOVE(__comp)), _M_it1(__it1) + { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator2 __it2) + { return bool(_M_comp(*__it2, *_M_it1)); } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_comp_to_iter<_Compare, _Iterator> + __iter_comp_iter(_Iter_comp_iter<_Compare> __comp, _Iterator __it) + { + return _Iter_comp_to_iter<_Compare, _Iterator>( + _GLIBCXX_MOVE(__comp._M_comp), __it); + } + + template + struct _Iter_negate + { + _Predicate _M_pred; + + _GLIBCXX20_CONSTEXPR + explicit + _Iter_negate(_Predicate __pred) + : _M_pred(_GLIBCXX_MOVE(__pred)) + { } + + template + _GLIBCXX20_CONSTEXPR + bool + operator()(_Iterator __it) + { return !bool(_M_pred(*__it)); } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _Iter_negate<_Predicate> + __negate(_Iter_pred<_Predicate> __pred) + { return _Iter_negate<_Predicate>(_GLIBCXX_MOVE(__pred._M_pred)); } + +} // namespace __ops +} // namespace __gnu_cxx + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/ptr_traits.h b/resources/sources/avr-libstdcpp/include/bits/ptr_traits.h new file mode 100644 index 000000000..38f694df5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/ptr_traits.h @@ -0,0 +1,211 @@ +// Pointer Traits -*- C++ -*- + +// Copyright (C) 2011-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/ptr_traits.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _PTR_TRAITS_H +#define _PTR_TRAITS_H 1 + +#if __cplusplus >= 201103L + +#include + +#if __cplusplus > 201703L +#define __cpp_lib_constexpr_memory 201811L +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + class __undefined; + + // Given Template return T, otherwise invalid. + template + struct __get_first_arg + { using type = __undefined; }; + + template class _Template, typename _Tp, + typename... _Types> + struct __get_first_arg<_Template<_Tp, _Types...>> + { using type = _Tp; }; + + template + using __get_first_arg_t = typename __get_first_arg<_Tp>::type; + + // Given Template and U return Template, otherwise invalid. + template + struct __replace_first_arg + { }; + + template class _Template, typename _Up, + typename _Tp, typename... _Types> + struct __replace_first_arg<_Template<_Tp, _Types...>, _Up> + { using type = _Template<_Up, _Types...>; }; + + template + using __replace_first_arg_t = typename __replace_first_arg<_Tp, _Up>::type; + + template + using __make_not_void + = typename conditional::value, __undefined, _Tp>::type; + + /** + * @brief Uniform interface to all pointer-like types + * @ingroup pointer_abstractions + */ + template + struct pointer_traits + { + private: + template + using __element_type = typename _Tp::element_type; + + template + using __difference_type = typename _Tp::difference_type; + + template + struct __rebind : __replace_first_arg<_Tp, _Up> { }; + + template + struct __rebind<_Tp, _Up, __void_t>> + { using type = typename _Tp::template rebind<_Up>; }; + + public: + /// The pointer type. + using pointer = _Ptr; + + /// The type pointed to. + using element_type + = __detected_or_t<__get_first_arg_t<_Ptr>, __element_type, _Ptr>; + + /// The type used to represent the difference between two pointers. + using difference_type + = __detected_or_t; + + /// A pointer to a different type. + template + using rebind = typename __rebind<_Ptr, _Up>::type; + + static _Ptr + pointer_to(__make_not_void& __e) + { return _Ptr::pointer_to(__e); } + + static_assert(!is_same::value, + "pointer type defines element_type or is like SomePointer"); + }; + + /** + * @brief Partial specialization for built-in pointers. + * @ingroup pointer_abstractions + */ + template + struct pointer_traits<_Tp*> + { + /// The pointer type + typedef _Tp* pointer; + /// The type pointed to + typedef _Tp element_type; + /// Type used to represent the difference between two pointers + typedef ptrdiff_t difference_type; + + template + using rebind = _Up*; + + /** + * @brief Obtain a pointer to an object + * @param __r A reference to an object of type @c element_type + * @return @c addressof(__r) + */ + static _GLIBCXX20_CONSTEXPR pointer + pointer_to(__make_not_void& __r) noexcept + { return std::addressof(__r); } + }; + + /// Convenience alias for rebinding pointers. + template + using __ptr_rebind = typename pointer_traits<_Ptr>::template rebind<_Tp>; + + template + constexpr _Tp* + __to_address(_Tp* __ptr) noexcept + { + static_assert(!std::is_function<_Tp>::value, "not a function pointer"); + return __ptr; + } + +#if __cplusplus <= 201703L + template + constexpr typename std::pointer_traits<_Ptr>::element_type* + __to_address(const _Ptr& __ptr) + { return std::__to_address(__ptr.operator->()); } +#else + template + constexpr auto + __to_address(const _Ptr& __ptr) noexcept + -> decltype(std::pointer_traits<_Ptr>::to_address(__ptr)) + { return std::pointer_traits<_Ptr>::to_address(__ptr); } + + template + constexpr auto + __to_address(const _Ptr& __ptr, _None...) noexcept + { + return std::__to_address(__ptr.operator->()); + } + +#define __cpp_lib_to_address 201711L + + /** + * @brief Obtain address referenced by a pointer to an object + * @param __ptr A pointer to an object + * @return @c __ptr + * @ingroup pointer_abstractions + */ + template + constexpr _Tp* + to_address(_Tp* __ptr) noexcept + { return std::__to_address(__ptr); } + + /** + * @brief Obtain address referenced by a pointer to an object + * @param __ptr A pointer to an object + * @return @c pointer_traits<_Ptr>::to_address(__ptr) if that expression is + well-formed, otherwise @c to_address(__ptr.operator->()) + * @ingroup pointer_abstractions + */ + template + constexpr auto + to_address(const _Ptr& __ptr) noexcept + { return std::__to_address(__ptr); } +#endif // C++2a + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/random.h b/resources/sources/avr-libstdcpp/include/bits/random.h new file mode 100644 index 000000000..0b0877394 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/random.h @@ -0,0 +1,5183 @@ +// random number generation -*- C++ -*- + +// Copyright (C) 2009-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** + * @file bits/random.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{random} + */ + +#ifndef _RANDOM_H +#define _RANDOM_H 1 + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // [26.4] Random number generation + + /** + * @defgroup random Random Number Generation + * @ingroup numerics + * + * A facility for generating random numbers on selected distributions. + * @{ + */ + + // std::uniform_random_bit_generator is defined in + + /** + * @brief A function template for converting the output of a (integral) + * uniform random number generator to a floatng point result in the range + * [0-1). + */ + template + _RealType + generate_canonical(_UniformRandomNumberGenerator& __g); + + /* + * Implementation-space details. + */ + namespace __detail + { + template + (std::numeric_limits<_UIntType>::digits)> + struct _Shift + { static const _UIntType __value = 0; }; + + template + struct _Shift<_UIntType, __w, true> + { static const _UIntType __value = _UIntType(1) << __w; }; + + template + struct _Select_uint_least_t + { + static_assert(__which < 0, /* needs to be dependent */ + "sorry, would be too much trouble for a slow result"); + }; + + template + struct _Select_uint_least_t<__s, 4> + { typedef unsigned int type; }; + + template + struct _Select_uint_least_t<__s, 3> + { typedef unsigned long type; }; + + template + struct _Select_uint_least_t<__s, 2> + { typedef unsigned long long type; }; + +#ifdef _GLIBCXX_USE_INT128 + template + struct _Select_uint_least_t<__s, 1> + { typedef unsigned __int128 type; }; +#endif + + // Assume a != 0, a < m, c < m, x < m. + template= __m - 1), + bool __schrage_ok = __m % __a < __m / __a> + struct _Mod + { + typedef typename _Select_uint_least_t::type _Tp2; + static _Tp + __calc(_Tp __x) + { return static_cast<_Tp>((_Tp2(__a) * __x + __c) % __m); } + }; + + // Schrage. + template + struct _Mod<_Tp, __m, __a, __c, false, true> + { + static _Tp + __calc(_Tp __x); + }; + + // Special cases: + // - for m == 2^n or m == 0, unsigned integer overflow is safe. + // - a * (m - 1) + c fits in _Tp, there is no overflow. + template + struct _Mod<_Tp, __m, __a, __c, true, __s> + { + static _Tp + __calc(_Tp __x) + { + _Tp __res = __a * __x + __c; + if (__m) + __res %= __m; + return __res; + } + }; + + template + inline _Tp + __mod(_Tp __x) + { return _Mod<_Tp, __m, __a, __c>::__calc(__x); } + + /* + * An adaptor class for converting the output of any Generator into + * the input for a specific Distribution. + */ + template + struct _Adaptor + { + static_assert(std::is_floating_point<_DInputType>::value, + "template argument must be a floating point type"); + + public: + _Adaptor(_Engine& __g) + : _M_g(__g) { } + + _DInputType + min() const + { return _DInputType(0); } + + _DInputType + max() const + { return _DInputType(1); } + + /* + * Converts a value generated by the adapted random number generator + * into a value in the input domain for the dependent random number + * distribution. + */ + _DInputType + operator()() + { + return std::generate_canonical<_DInputType, + std::numeric_limits<_DInputType>::digits, + _Engine>(_M_g); + } + + private: + _Engine& _M_g; + }; + + template + using __seed_seq_generate_t = decltype( + std::declval<_Sseq&>().generate(std::declval(), + std::declval())); + + // Detect whether _Sseq is a valid seed sequence for + // a random number engine _Engine with result type _Res. + template> + using __is_seed_seq = __and_< + __not_, _Engine>>, + is_unsigned, + __not_> + >; + + } // namespace __detail + + /** + * @addtogroup random_generators Random Number Generators + * @ingroup random + * + * These classes define objects which provide random or pseudorandom + * numbers, either from a discrete or a continuous interval. The + * random number generator supplied as a part of this library are + * all uniform random number generators which provide a sequence of + * random number uniformly distributed over their range. + * + * A number generator is a function object with an operator() that + * takes zero arguments and returns a number. + * + * A compliant random number generator must satisfy the following + * requirements. + * + *
Random Number Generator Requirements
To be documented.
+ * + * @{ + */ + + /** + * @brief A model of a linear congruential random number generator. + * + * A random number generator that produces pseudorandom numbers via + * linear function: + * @f[ + * x_{i+1}\leftarrow(ax_{i} + c) \bmod m + * @f] + * + * The template parameter @p _UIntType must be an unsigned integral type + * large enough to store values up to (__m-1). If the template parameter + * @p __m is 0, the modulus @p __m used is + * std::numeric_limits<_UIntType>::max() plus 1. Otherwise, the template + * parameters @p __a and @p __c must be less than @p __m. + * + * The size of the state is @f$1@f$. + */ + template + class linear_congruential_engine + { + static_assert(std::is_unsigned<_UIntType>::value, + "result_type must be an unsigned integral type"); + static_assert(__m == 0u || (__a < __m && __c < __m), + "template argument substituting __m out of bounds"); + + template + using _If_seed_seq = typename enable_if<__detail::__is_seed_seq< + _Sseq, linear_congruential_engine, _UIntType>::value>::type; + + public: + /** The type of the generated random value. */ + typedef _UIntType result_type; + + /** The multiplier. */ + static constexpr result_type multiplier = __a; + /** An increment. */ + static constexpr result_type increment = __c; + /** The modulus. */ + static constexpr result_type modulus = __m; + static constexpr result_type default_seed = 1u; + + /** + * @brief Constructs a %linear_congruential_engine random number + * generator engine with seed 1. + */ + linear_congruential_engine() : linear_congruential_engine(default_seed) + { } + + /** + * @brief Constructs a %linear_congruential_engine random number + * generator engine with seed @p __s. The default seed value + * is 1. + * + * @param __s The initial seed value. + */ + explicit + linear_congruential_engine(result_type __s) + { seed(__s); } + + /** + * @brief Constructs a %linear_congruential_engine random number + * generator engine seeded from the seed sequence @p __q. + * + * @param __q the seed sequence. + */ + template> + explicit + linear_congruential_engine(_Sseq& __q) + { seed(__q); } + + /** + * @brief Reseeds the %linear_congruential_engine random number generator + * engine sequence to the seed @p __s. + * + * @param __s The new seed. + */ + void + seed(result_type __s = default_seed); + + /** + * @brief Reseeds the %linear_congruential_engine random number generator + * engine + * sequence using values from the seed sequence @p __q. + * + * @param __q the seed sequence. + */ + template + _If_seed_seq<_Sseq> + seed(_Sseq& __q); + + /** + * @brief Gets the smallest possible value in the output range. + * + * The minimum depends on the @p __c parameter: if it is zero, the + * minimum generated must be > 0, otherwise 0 is allowed. + */ + static constexpr result_type + min() + { return __c == 0u ? 1u : 0u; } + + /** + * @brief Gets the largest possible value in the output range. + */ + static constexpr result_type + max() + { return __m - 1u; } + + /** + * @brief Discard a sequence of random numbers. + */ + void + discard(unsigned long long __z) + { + for (; __z != 0ULL; --__z) + (*this)(); + } + + /** + * @brief Gets the next random number in the sequence. + */ + result_type + operator()() + { + _M_x = __detail::__mod<_UIntType, __m, __a, __c>(_M_x); + return _M_x; + } + + /** + * @brief Compares two linear congruential random number generator + * objects of the same type for equality. + * + * @param __lhs A linear congruential random number generator object. + * @param __rhs Another linear congruential random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be equal, false otherwise. + */ + friend bool + operator==(const linear_congruential_engine& __lhs, + const linear_congruential_engine& __rhs) + { return __lhs._M_x == __rhs._M_x; } + + private: + _UIntType _M_x; + }; + + /** + * @brief Compares two linear congruential random number generator + * objects of the same type for inequality. + * + * @param __lhs A linear congruential random number generator object. + * @param __rhs Another linear congruential random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be different, false otherwise. + */ + template + inline bool + operator!=(const std::linear_congruential_engine<_UIntType, __a, + __c, __m>& __lhs, + const std::linear_congruential_engine<_UIntType, __a, + __c, __m>& __rhs) + { return !(__lhs == __rhs); } + + + /** + * A generalized feedback shift register discrete random number generator. + * + * This algorithm avoids multiplication and division and is designed to be + * friendly to a pipelined architecture. If the parameters are chosen + * correctly, this generator will produce numbers with a very long period and + * fairly good apparent entropy, although still not cryptographically strong. + * + * The best way to use this generator is with the predefined mt19937 class. + * + * This algorithm was originally invented by Makoto Matsumoto and + * Takuji Nishimura. + * + * @tparam __w Word size, the number of bits in each element of + * the state vector. + * @tparam __n The degree of recursion. + * @tparam __m The period parameter. + * @tparam __r The separation point bit index. + * @tparam __a The last row of the twist matrix. + * @tparam __u The first right-shift tempering matrix parameter. + * @tparam __d The first right-shift tempering matrix mask. + * @tparam __s The first left-shift tempering matrix parameter. + * @tparam __b The first left-shift tempering matrix mask. + * @tparam __t The second left-shift tempering matrix parameter. + * @tparam __c The second left-shift tempering matrix mask. + * @tparam __l The second right-shift tempering matrix parameter. + * @tparam __f Initialization multiplier. + */ + template + class mersenne_twister_engine + { + static_assert(std::is_unsigned<_UIntType>::value, + "result_type must be an unsigned integral type"); + static_assert(1u <= __m && __m <= __n, + "template argument substituting __m out of bounds"); + static_assert(__r <= __w, "template argument substituting " + "__r out of bound"); + static_assert(__u <= __w, "template argument substituting " + "__u out of bound"); + static_assert(__s <= __w, "template argument substituting " + "__s out of bound"); + static_assert(__t <= __w, "template argument substituting " + "__t out of bound"); + static_assert(__l <= __w, "template argument substituting " + "__l out of bound"); + static_assert(__w <= std::numeric_limits<_UIntType>::digits, + "template argument substituting __w out of bound"); + static_assert(__a <= (__detail::_Shift<_UIntType, __w>::__value - 1), + "template argument substituting __a out of bound"); + static_assert(__b <= (__detail::_Shift<_UIntType, __w>::__value - 1), + "template argument substituting __b out of bound"); + static_assert(__c <= (__detail::_Shift<_UIntType, __w>::__value - 1), + "template argument substituting __c out of bound"); + static_assert(__d <= (__detail::_Shift<_UIntType, __w>::__value - 1), + "template argument substituting __d out of bound"); + static_assert(__f <= (__detail::_Shift<_UIntType, __w>::__value - 1), + "template argument substituting __f out of bound"); + + template + using _If_seed_seq = typename enable_if<__detail::__is_seed_seq< + _Sseq, mersenne_twister_engine, _UIntType>::value>::type; + + public: + /** The type of the generated random value. */ + typedef _UIntType result_type; + + // parameter values + static constexpr size_t word_size = __w; + static constexpr size_t state_size = __n; + static constexpr size_t shift_size = __m; + static constexpr size_t mask_bits = __r; + static constexpr result_type xor_mask = __a; + static constexpr size_t tempering_u = __u; + static constexpr result_type tempering_d = __d; + static constexpr size_t tempering_s = __s; + static constexpr result_type tempering_b = __b; + static constexpr size_t tempering_t = __t; + static constexpr result_type tempering_c = __c; + static constexpr size_t tempering_l = __l; + static constexpr result_type initialization_multiplier = __f; + static constexpr result_type default_seed = 5489u; + + // constructors and member functions + + mersenne_twister_engine() : mersenne_twister_engine(default_seed) { } + + explicit + mersenne_twister_engine(result_type __sd) + { seed(__sd); } + + /** + * @brief Constructs a %mersenne_twister_engine random number generator + * engine seeded from the seed sequence @p __q. + * + * @param __q the seed sequence. + */ + template> + explicit + mersenne_twister_engine(_Sseq& __q) + { seed(__q); } + + void + seed(result_type __sd = default_seed); + + template + _If_seed_seq<_Sseq> + seed(_Sseq& __q); + + /** + * @brief Gets the smallest possible value in the output range. + */ + static constexpr result_type + min() + { return 0; } + + /** + * @brief Gets the largest possible value in the output range. + */ + static constexpr result_type + max() + { return __detail::_Shift<_UIntType, __w>::__value - 1; } + + /** + * @brief Discard a sequence of random numbers. + */ + void + discard(unsigned long long __z); + + result_type + operator()(); + + /** + * @brief Compares two % mersenne_twister_engine random number generator + * objects of the same type for equality. + * + * @param __lhs A % mersenne_twister_engine random number generator + * object. + * @param __rhs Another % mersenne_twister_engine random number + * generator object. + * + * @returns true if the infinite sequences of generated values + * would be equal, false otherwise. + */ + friend bool + operator==(const mersenne_twister_engine& __lhs, + const mersenne_twister_engine& __rhs) + { return (std::equal(__lhs._M_x, __lhs._M_x + state_size, __rhs._M_x) + && __lhs._M_p == __rhs._M_p); } + + private: + void _M_gen_rand(); + + _UIntType _M_x[state_size]; + size_t _M_p; + }; + + /** + * @brief Compares two % mersenne_twister_engine random number generator + * objects of the same type for inequality. + * + * @param __lhs A % mersenne_twister_engine random number generator + * object. + * @param __rhs Another % mersenne_twister_engine random number + * generator object. + * + * @returns true if the infinite sequences of generated values + * would be different, false otherwise. + */ + template + inline bool + operator!=(const std::mersenne_twister_engine<_UIntType, __w, __n, __m, + __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>& __lhs, + const std::mersenne_twister_engine<_UIntType, __w, __n, __m, + __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>& __rhs) + { return !(__lhs == __rhs); } + + + /** + * @brief The Marsaglia-Zaman generator. + * + * This is a model of a Generalized Fibonacci discrete random number + * generator, sometimes referred to as the SWC generator. + * + * A discrete random number generator that produces pseudorandom + * numbers using: + * @f[ + * x_{i}\leftarrow(x_{i - s} - x_{i - r} - carry_{i-1}) \bmod m + * @f] + * + * The size of the state is @f$r@f$ + * and the maximum period of the generator is @f$(m^r - m^s - 1)@f$. + */ + template + class subtract_with_carry_engine + { + static_assert(std::is_unsigned<_UIntType>::value, + "result_type must be an unsigned integral type"); + static_assert(0u < __s && __s < __r, + "0 < s < r"); + static_assert(0u < __w && __w <= std::numeric_limits<_UIntType>::digits, + "template argument substituting __w out of bounds"); + + template + using _If_seed_seq = typename enable_if<__detail::__is_seed_seq< + _Sseq, subtract_with_carry_engine, _UIntType>::value>::type; + + public: + /** The type of the generated random value. */ + typedef _UIntType result_type; + + // parameter values + static constexpr size_t word_size = __w; + static constexpr size_t short_lag = __s; + static constexpr size_t long_lag = __r; + static constexpr result_type default_seed = 19780503u; + + subtract_with_carry_engine() : subtract_with_carry_engine(default_seed) + { } + + /** + * @brief Constructs an explicitly seeded %subtract_with_carry_engine + * random number generator. + */ + explicit + subtract_with_carry_engine(result_type __sd) + { seed(__sd); } + + /** + * @brief Constructs a %subtract_with_carry_engine random number engine + * seeded from the seed sequence @p __q. + * + * @param __q the seed sequence. + */ + template> + explicit + subtract_with_carry_engine(_Sseq& __q) + { seed(__q); } + + /** + * @brief Seeds the initial state @f$x_0@f$ of the random number + * generator. + * + * N1688[4.19] modifies this as follows. If @p __value == 0, + * sets value to 19780503. In any case, with a linear + * congruential generator lcg(i) having parameters @f$ m_{lcg} = + * 2147483563, a_{lcg} = 40014, c_{lcg} = 0, and lcg(0) = value + * @f$, sets @f$ x_{-r} \dots x_{-1} @f$ to @f$ lcg(1) \bmod m + * \dots lcg(r) \bmod m @f$ respectively. If @f$ x_{-1} = 0 @f$ + * set carry to 1, otherwise sets carry to 0. + */ + void + seed(result_type __sd = default_seed); + + /** + * @brief Seeds the initial state @f$x_0@f$ of the + * % subtract_with_carry_engine random number generator. + */ + template + _If_seed_seq<_Sseq> + seed(_Sseq& __q); + + /** + * @brief Gets the inclusive minimum value of the range of random + * integers returned by this generator. + */ + static constexpr result_type + min() + { return 0; } + + /** + * @brief Gets the inclusive maximum value of the range of random + * integers returned by this generator. + */ + static constexpr result_type + max() + { return __detail::_Shift<_UIntType, __w>::__value - 1; } + + /** + * @brief Discard a sequence of random numbers. + */ + void + discard(unsigned long long __z) + { + for (; __z != 0ULL; --__z) + (*this)(); + } + + /** + * @brief Gets the next random number in the sequence. + */ + result_type + operator()(); + + /** + * @brief Compares two % subtract_with_carry_engine random number + * generator objects of the same type for equality. + * + * @param __lhs A % subtract_with_carry_engine random number generator + * object. + * @param __rhs Another % subtract_with_carry_engine random number + * generator object. + * + * @returns true if the infinite sequences of generated values + * would be equal, false otherwise. + */ + friend bool + operator==(const subtract_with_carry_engine& __lhs, + const subtract_with_carry_engine& __rhs) + { return (std::equal(__lhs._M_x, __lhs._M_x + long_lag, __rhs._M_x) + && __lhs._M_carry == __rhs._M_carry + && __lhs._M_p == __rhs._M_p); } + + private: + /// The state of the generator. This is a ring buffer. + _UIntType _M_x[long_lag]; + _UIntType _M_carry; ///< The carry + size_t _M_p; ///< Current index of x(i - r). + }; + + /** + * @brief Compares two % subtract_with_carry_engine random number + * generator objects of the same type for inequality. + * + * @param __lhs A % subtract_with_carry_engine random number generator + * object. + * @param __rhs Another % subtract_with_carry_engine random number + * generator object. + * + * @returns true if the infinite sequences of generated values + * would be different, false otherwise. + */ + template + inline bool + operator!=(const std::subtract_with_carry_engine<_UIntType, __w, + __s, __r>& __lhs, + const std::subtract_with_carry_engine<_UIntType, __w, + __s, __r>& __rhs) + { return !(__lhs == __rhs); } + + + /** + * Produces random numbers from some base engine by discarding blocks of + * data. + * + * 0 <= @p __r <= @p __p + */ + template + class discard_block_engine + { + static_assert(1 <= __r && __r <= __p, + "template argument substituting __r out of bounds"); + + public: + /** The type of the generated random value. */ + typedef typename _RandomNumberEngine::result_type result_type; + + template + using _If_seed_seq = typename enable_if<__detail::__is_seed_seq< + _Sseq, discard_block_engine, result_type>::value>::type; + + // parameter values + static constexpr size_t block_size = __p; + static constexpr size_t used_block = __r; + + /** + * @brief Constructs a default %discard_block_engine engine. + * + * The underlying engine is default constructed as well. + */ + discard_block_engine() + : _M_b(), _M_n(0) { } + + /** + * @brief Copy constructs a %discard_block_engine engine. + * + * Copies an existing base class random number generator. + * @param __rng An existing (base class) engine object. + */ + explicit + discard_block_engine(const _RandomNumberEngine& __rng) + : _M_b(__rng), _M_n(0) { } + + /** + * @brief Move constructs a %discard_block_engine engine. + * + * Copies an existing base class random number generator. + * @param __rng An existing (base class) engine object. + */ + explicit + discard_block_engine(_RandomNumberEngine&& __rng) + : _M_b(std::move(__rng)), _M_n(0) { } + + /** + * @brief Seed constructs a %discard_block_engine engine. + * + * Constructs the underlying generator engine seeded with @p __s. + * @param __s A seed value for the base class engine. + */ + explicit + discard_block_engine(result_type __s) + : _M_b(__s), _M_n(0) { } + + /** + * @brief Generator construct a %discard_block_engine engine. + * + * @param __q A seed sequence. + */ + template> + explicit + discard_block_engine(_Sseq& __q) + : _M_b(__q), _M_n(0) + { } + + /** + * @brief Reseeds the %discard_block_engine object with the default + * seed for the underlying base class generator engine. + */ + void + seed() + { + _M_b.seed(); + _M_n = 0; + } + + /** + * @brief Reseeds the %discard_block_engine object with the default + * seed for the underlying base class generator engine. + */ + void + seed(result_type __s) + { + _M_b.seed(__s); + _M_n = 0; + } + + /** + * @brief Reseeds the %discard_block_engine object with the given seed + * sequence. + * @param __q A seed generator function. + */ + template + _If_seed_seq<_Sseq> + seed(_Sseq& __q) + { + _M_b.seed(__q); + _M_n = 0; + } + + /** + * @brief Gets a const reference to the underlying generator engine + * object. + */ + const _RandomNumberEngine& + base() const noexcept + { return _M_b; } + + /** + * @brief Gets the minimum value in the generated random number range. + */ + static constexpr result_type + min() + { return _RandomNumberEngine::min(); } + + /** + * @brief Gets the maximum value in the generated random number range. + */ + static constexpr result_type + max() + { return _RandomNumberEngine::max(); } + + /** + * @brief Discard a sequence of random numbers. + */ + void + discard(unsigned long long __z) + { + for (; __z != 0ULL; --__z) + (*this)(); + } + + /** + * @brief Gets the next value in the generated random number sequence. + */ + result_type + operator()(); + + /** + * @brief Compares two %discard_block_engine random number generator + * objects of the same type for equality. + * + * @param __lhs A %discard_block_engine random number generator object. + * @param __rhs Another %discard_block_engine random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be equal, false otherwise. + */ + friend bool + operator==(const discard_block_engine& __lhs, + const discard_block_engine& __rhs) + { return __lhs._M_b == __rhs._M_b && __lhs._M_n == __rhs._M_n; } + + private: + _RandomNumberEngine _M_b; + size_t _M_n; + }; + + /** + * @brief Compares two %discard_block_engine random number generator + * objects of the same type for inequality. + * + * @param __lhs A %discard_block_engine random number generator object. + * @param __rhs Another %discard_block_engine random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be different, false otherwise. + */ + template + inline bool + operator!=(const std::discard_block_engine<_RandomNumberEngine, __p, + __r>& __lhs, + const std::discard_block_engine<_RandomNumberEngine, __p, + __r>& __rhs) + { return !(__lhs == __rhs); } + + + /** + * Produces random numbers by combining random numbers from some base + * engine to produce random numbers with a specifies number of bits @p __w. + */ + template + class independent_bits_engine + { + static_assert(std::is_unsigned<_UIntType>::value, + "result_type must be an unsigned integral type"); + static_assert(0u < __w && __w <= std::numeric_limits<_UIntType>::digits, + "template argument substituting __w out of bounds"); + + template + using _If_seed_seq = typename enable_if<__detail::__is_seed_seq< + _Sseq, independent_bits_engine, _UIntType>::value>::type; + + public: + /** The type of the generated random value. */ + typedef _UIntType result_type; + + /** + * @brief Constructs a default %independent_bits_engine engine. + * + * The underlying engine is default constructed as well. + */ + independent_bits_engine() + : _M_b() { } + + /** + * @brief Copy constructs a %independent_bits_engine engine. + * + * Copies an existing base class random number generator. + * @param __rng An existing (base class) engine object. + */ + explicit + independent_bits_engine(const _RandomNumberEngine& __rng) + : _M_b(__rng) { } + + /** + * @brief Move constructs a %independent_bits_engine engine. + * + * Copies an existing base class random number generator. + * @param __rng An existing (base class) engine object. + */ + explicit + independent_bits_engine(_RandomNumberEngine&& __rng) + : _M_b(std::move(__rng)) { } + + /** + * @brief Seed constructs a %independent_bits_engine engine. + * + * Constructs the underlying generator engine seeded with @p __s. + * @param __s A seed value for the base class engine. + */ + explicit + independent_bits_engine(result_type __s) + : _M_b(__s) { } + + /** + * @brief Generator construct a %independent_bits_engine engine. + * + * @param __q A seed sequence. + */ + template> + explicit + independent_bits_engine(_Sseq& __q) + : _M_b(__q) + { } + + /** + * @brief Reseeds the %independent_bits_engine object with the default + * seed for the underlying base class generator engine. + */ + void + seed() + { _M_b.seed(); } + + /** + * @brief Reseeds the %independent_bits_engine object with the default + * seed for the underlying base class generator engine. + */ + void + seed(result_type __s) + { _M_b.seed(__s); } + + /** + * @brief Reseeds the %independent_bits_engine object with the given + * seed sequence. + * @param __q A seed generator function. + */ + template + _If_seed_seq<_Sseq> + seed(_Sseq& __q) + { _M_b.seed(__q); } + + /** + * @brief Gets a const reference to the underlying generator engine + * object. + */ + const _RandomNumberEngine& + base() const noexcept + { return _M_b; } + + /** + * @brief Gets the minimum value in the generated random number range. + */ + static constexpr result_type + min() + { return 0U; } + + /** + * @brief Gets the maximum value in the generated random number range. + */ + static constexpr result_type + max() + { return __detail::_Shift<_UIntType, __w>::__value - 1; } + + /** + * @brief Discard a sequence of random numbers. + */ + void + discard(unsigned long long __z) + { + for (; __z != 0ULL; --__z) + (*this)(); + } + + /** + * @brief Gets the next value in the generated random number sequence. + */ + result_type + operator()(); + + /** + * @brief Compares two %independent_bits_engine random number generator + * objects of the same type for equality. + * + * @param __lhs A %independent_bits_engine random number generator + * object. + * @param __rhs Another %independent_bits_engine random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be equal, false otherwise. + */ + friend bool + operator==(const independent_bits_engine& __lhs, + const independent_bits_engine& __rhs) + { return __lhs._M_b == __rhs._M_b; } + + private: + _RandomNumberEngine _M_b; + }; + + /** + * @brief Compares two %independent_bits_engine random number generator + * objects of the same type for inequality. + * + * @param __lhs A %independent_bits_engine random number generator + * object. + * @param __rhs Another %independent_bits_engine random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be different, false otherwise. + */ + template + inline bool + operator!=(const std::independent_bits_engine<_RandomNumberEngine, __w, + _UIntType>& __lhs, + const std::independent_bits_engine<_RandomNumberEngine, __w, + _UIntType>& __rhs) + { return !(__lhs == __rhs); } + + + + /** + * @brief Produces random numbers by combining random numbers from some + * base engine to produce random numbers with a specifies number of bits + * @p __k. + */ + template + class shuffle_order_engine + { + static_assert(1u <= __k, "template argument substituting " + "__k out of bound"); + + public: + /** The type of the generated random value. */ + typedef typename _RandomNumberEngine::result_type result_type; + + template + using _If_seed_seq = typename enable_if<__detail::__is_seed_seq< + _Sseq, shuffle_order_engine, result_type>::value>::type; + + static constexpr size_t table_size = __k; + + /** + * @brief Constructs a default %shuffle_order_engine engine. + * + * The underlying engine is default constructed as well. + */ + shuffle_order_engine() + : _M_b() + { _M_initialize(); } + + /** + * @brief Copy constructs a %shuffle_order_engine engine. + * + * Copies an existing base class random number generator. + * @param __rng An existing (base class) engine object. + */ + explicit + shuffle_order_engine(const _RandomNumberEngine& __rng) + : _M_b(__rng) + { _M_initialize(); } + + /** + * @brief Move constructs a %shuffle_order_engine engine. + * + * Copies an existing base class random number generator. + * @param __rng An existing (base class) engine object. + */ + explicit + shuffle_order_engine(_RandomNumberEngine&& __rng) + : _M_b(std::move(__rng)) + { _M_initialize(); } + + /** + * @brief Seed constructs a %shuffle_order_engine engine. + * + * Constructs the underlying generator engine seeded with @p __s. + * @param __s A seed value for the base class engine. + */ + explicit + shuffle_order_engine(result_type __s) + : _M_b(__s) + { _M_initialize(); } + + /** + * @brief Generator construct a %shuffle_order_engine engine. + * + * @param __q A seed sequence. + */ + template> + explicit + shuffle_order_engine(_Sseq& __q) + : _M_b(__q) + { _M_initialize(); } + + /** + * @brief Reseeds the %shuffle_order_engine object with the default seed + for the underlying base class generator engine. + */ + void + seed() + { + _M_b.seed(); + _M_initialize(); + } + + /** + * @brief Reseeds the %shuffle_order_engine object with the default seed + * for the underlying base class generator engine. + */ + void + seed(result_type __s) + { + _M_b.seed(__s); + _M_initialize(); + } + + /** + * @brief Reseeds the %shuffle_order_engine object with the given seed + * sequence. + * @param __q A seed generator function. + */ + template + _If_seed_seq<_Sseq> + seed(_Sseq& __q) + { + _M_b.seed(__q); + _M_initialize(); + } + + /** + * Gets a const reference to the underlying generator engine object. + */ + const _RandomNumberEngine& + base() const noexcept + { return _M_b; } + + /** + * Gets the minimum value in the generated random number range. + */ + static constexpr result_type + min() + { return _RandomNumberEngine::min(); } + + /** + * Gets the maximum value in the generated random number range. + */ + static constexpr result_type + max() + { return _RandomNumberEngine::max(); } + + /** + * Discard a sequence of random numbers. + */ + void + discard(unsigned long long __z) + { + for (; __z != 0ULL; --__z) + (*this)(); + } + + /** + * Gets the next value in the generated random number sequence. + */ + result_type + operator()(); + + /** + * Compares two %shuffle_order_engine random number generator objects + * of the same type for equality. + * + * @param __lhs A %shuffle_order_engine random number generator object. + * @param __rhs Another %shuffle_order_engine random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be equal, false otherwise. + */ + friend bool + operator==(const shuffle_order_engine& __lhs, + const shuffle_order_engine& __rhs) + { return (__lhs._M_b == __rhs._M_b + && std::equal(__lhs._M_v, __lhs._M_v + __k, __rhs._M_v) + && __lhs._M_y == __rhs._M_y); } + + + private: + void _M_initialize() + { + for (size_t __i = 0; __i < __k; ++__i) + _M_v[__i] = _M_b(); + _M_y = _M_b(); + } + + _RandomNumberEngine _M_b; + result_type _M_v[__k]; + result_type _M_y; + }; + + /** + * Compares two %shuffle_order_engine random number generator objects + * of the same type for inequality. + * + * @param __lhs A %shuffle_order_engine random number generator object. + * @param __rhs Another %shuffle_order_engine random number generator + * object. + * + * @returns true if the infinite sequences of generated values + * would be different, false otherwise. + */ + template + inline bool + operator!=(const std::shuffle_order_engine<_RandomNumberEngine, + __k>& __lhs, + const std::shuffle_order_engine<_RandomNumberEngine, + __k>& __rhs) + { return !(__lhs == __rhs); } + + + /** + * The classic Minimum Standard rand0 of Lewis, Goodman, and Miller. + */ + typedef linear_congruential_engine + minstd_rand0; + + /** + * An alternative LCR (Lehmer Generator function). + */ + typedef linear_congruential_engine + minstd_rand; + + /** + * The classic Mersenne Twister. + * + * Reference: + * M. Matsumoto and T. Nishimura, Mersenne Twister: A 623-Dimensionally + * Equidistributed Uniform Pseudo-Random Number Generator, ACM Transactions + * on Modeling and Computer Simulation, Vol. 8, No. 1, January 1998, pp 3-30. + */ + typedef mersenne_twister_engine< + uint_fast32_t, + 32, 624, 397, 31, + 0x9908b0dfUL, 11, + 0xffffffffUL, 7, + 0x9d2c5680UL, 15, + 0xefc60000UL, 18, 1812433253UL> mt19937; + + /** + * An alternative Mersenne Twister. + */ + typedef mersenne_twister_engine< + uint_fast64_t, + 64, 312, 156, 31, + 0xb5026f5aa96619e9ULL, 29, + 0x5555555555555555ULL, 17, + 0x71d67fffeda60000ULL, 37, + 0xfff7eee000000000ULL, 43, + 6364136223846793005ULL> mt19937_64; + + typedef subtract_with_carry_engine + ranlux24_base; + + typedef subtract_with_carry_engine + ranlux48_base; + + typedef discard_block_engine ranlux24; + + typedef discard_block_engine ranlux48; + + typedef shuffle_order_engine knuth_b; + + typedef minstd_rand0 default_random_engine; + + /* @} */ // group random_generators + + /** + * @addtogroup random_distributions Random Number Distributions + * @ingroup random + * @{ + */ + + /** + * @addtogroup random_distributions_uniform Uniform Distributions + * @ingroup random_distributions + * @{ + */ + + // std::uniform_int_distribution is defined in + + /** + * @brief Return true if two uniform integer distributions have + * different parameters. + */ + template + inline bool + operator!=(const std::uniform_int_distribution<_IntType>& __d1, + const std::uniform_int_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief Uniform continuous distribution for random numbers. + * + * A continuous random distribution on the range [min, max) with equal + * probability throughout the range. The URNG should be real-valued and + * deliver number in the range [0, 1). + */ + template + class uniform_real_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef uniform_real_distribution<_RealType> distribution_type; + + param_type() : param_type(0) { } + + explicit + param_type(_RealType __a, _RealType __b = _RealType(1)) + : _M_a(__a), _M_b(__b) + { + __glibcxx_assert(_M_a <= _M_b); + } + + result_type + a() const + { return _M_a; } + + result_type + b() const + { return _M_b; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_a; + _RealType _M_b; + }; + + public: + /** + * @brief Constructs a uniform_real_distribution object. + * + * The lower bound is set to 0.0 and the upper bound to 1.0 + */ + uniform_real_distribution() : uniform_real_distribution(0.0) { } + + /** + * @brief Constructs a uniform_real_distribution object. + * + * @param __a [IN] The lower bound of the distribution. + * @param __b [IN] The upper bound of the distribution. + */ + explicit + uniform_real_distribution(_RealType __a, _RealType __b = _RealType(1)) + : _M_param(__a, __b) + { } + + explicit + uniform_real_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + * + * Does nothing for the uniform real distribution. + */ + void + reset() { } + + result_type + a() const + { return _M_param.a(); } + + result_type + b() const + { return _M_param.b(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the inclusive lower bound of the distribution range. + */ + result_type + min() const + { return this->a(); } + + /** + * @brief Returns the inclusive upper bound of the distribution range. + */ + result_type + max() const + { return this->b(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + return (__aurng() * (__p.b() - __p.a())) + __p.a(); + } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two uniform real distributions have + * the same parameters. + */ + friend bool + operator==(const uniform_real_distribution& __d1, + const uniform_real_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two uniform real distributions have + * different parameters. + */ + template + inline bool + operator!=(const std::uniform_real_distribution<_IntType>& __d1, + const std::uniform_real_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + /* @} */ // group random_distributions_uniform + + /** + * @addtogroup random_distributions_normal Normal Distributions + * @ingroup random_distributions + * @{ + */ + + /** + * @brief A normal continuous distribution for random numbers. + * + * The formula for the normal probability density function is + * @f[ + * p(x|\mu,\sigma) = \frac{1}{\sigma \sqrt{2 \pi}} + * e^{- \frac{{x - \mu}^ {2}}{2 \sigma ^ {2}} } + * @f] + */ + template + class normal_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef normal_distribution<_RealType> distribution_type; + + param_type() : param_type(0.0) { } + + explicit + param_type(_RealType __mean, _RealType __stddev = _RealType(1)) + : _M_mean(__mean), _M_stddev(__stddev) + { + __glibcxx_assert(_M_stddev > _RealType(0)); + } + + _RealType + mean() const + { return _M_mean; } + + _RealType + stddev() const + { return _M_stddev; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return (__p1._M_mean == __p2._M_mean + && __p1._M_stddev == __p2._M_stddev); } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_mean; + _RealType _M_stddev; + }; + + public: + normal_distribution() : normal_distribution(0.0) { } + + /** + * Constructs a normal distribution with parameters @f$mean@f$ and + * standard deviation. + */ + explicit + normal_distribution(result_type __mean, + result_type __stddev = result_type(1)) + : _M_param(__mean, __stddev), _M_saved_available(false) + { } + + explicit + normal_distribution(const param_type& __p) + : _M_param(__p), _M_saved_available(false) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { _M_saved_available = false; } + + /** + * @brief Returns the mean of the distribution. + */ + _RealType + mean() const + { return _M_param.mean(); } + + /** + * @brief Returns the standard deviation of the distribution. + */ + _RealType + stddev() const + { return _M_param.stddev(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return std::numeric_limits::lowest(); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two normal distributions have + * the same parameters and the sequences that would + * be generated are equal. + */ + template + friend bool + operator==(const std::normal_distribution<_RealType1>& __d1, + const std::normal_distribution<_RealType1>& __d2); + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + result_type _M_saved; + bool _M_saved_available; + }; + + /** + * @brief Return true if two normal distributions are different. + */ + template + inline bool + operator!=(const std::normal_distribution<_RealType>& __d1, + const std::normal_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A lognormal_distribution random number distribution. + * + * The formula for the normal probability mass function is + * @f[ + * p(x|m,s) = \frac{1}{sx\sqrt{2\pi}} + * \exp{-\frac{(\ln{x} - m)^2}{2s^2}} + * @f] + */ + template + class lognormal_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef lognormal_distribution<_RealType> distribution_type; + + param_type() : param_type(0.0) { } + + explicit + param_type(_RealType __m, _RealType __s = _RealType(1)) + : _M_m(__m), _M_s(__s) + { } + + _RealType + m() const + { return _M_m; } + + _RealType + s() const + { return _M_s; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_m == __p2._M_m && __p1._M_s == __p2._M_s; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_m; + _RealType _M_s; + }; + + lognormal_distribution() : lognormal_distribution(0.0) { } + + explicit + lognormal_distribution(_RealType __m, _RealType __s = _RealType(1)) + : _M_param(__m, __s), _M_nd() + { } + + explicit + lognormal_distribution(const param_type& __p) + : _M_param(__p), _M_nd() + { } + + /** + * Resets the distribution state. + */ + void + reset() + { _M_nd.reset(); } + + /** + * + */ + _RealType + m() const + { return _M_param.m(); } + + _RealType + s() const + { return _M_param.s(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { return std::exp(__p.s() * _M_nd(__urng) + __p.m()); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two lognormal distributions have + * the same parameters and the sequences that would + * be generated are equal. + */ + friend bool + operator==(const lognormal_distribution& __d1, + const lognormal_distribution& __d2) + { return (__d1._M_param == __d2._M_param + && __d1._M_nd == __d2._M_nd); } + + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + + std::normal_distribution _M_nd; + }; + + /** + * @brief Return true if two lognormal distributions are different. + */ + template + inline bool + operator!=(const std::lognormal_distribution<_RealType>& __d1, + const std::lognormal_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A gamma continuous distribution for random numbers. + * + * The formula for the gamma probability density function is: + * @f[ + * p(x|\alpha,\beta) = \frac{1}{\beta\Gamma(\alpha)} + * (x/\beta)^{\alpha - 1} e^{-x/\beta} + * @f] + */ + template + class gamma_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef gamma_distribution<_RealType> distribution_type; + friend class gamma_distribution<_RealType>; + + param_type() : param_type(1.0) { } + + explicit + param_type(_RealType __alpha_val, _RealType __beta_val = _RealType(1)) + : _M_alpha(__alpha_val), _M_beta(__beta_val) + { + __glibcxx_assert(_M_alpha > _RealType(0)); + _M_initialize(); + } + + _RealType + alpha() const + { return _M_alpha; } + + _RealType + beta() const + { return _M_beta; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return (__p1._M_alpha == __p2._M_alpha + && __p1._M_beta == __p2._M_beta); } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + void + _M_initialize(); + + _RealType _M_alpha; + _RealType _M_beta; + + _RealType _M_malpha, _M_a2; + }; + + public: + /** + * @brief Constructs a gamma distribution with parameters 1 and 1. + */ + gamma_distribution() : gamma_distribution(1.0) { } + + /** + * @brief Constructs a gamma distribution with parameters + * @f$\alpha@f$ and @f$\beta@f$. + */ + explicit + gamma_distribution(_RealType __alpha_val, + _RealType __beta_val = _RealType(1)) + : _M_param(__alpha_val, __beta_val), _M_nd() + { } + + explicit + gamma_distribution(const param_type& __p) + : _M_param(__p), _M_nd() + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { _M_nd.reset(); } + + /** + * @brief Returns the @f$\alpha@f$ of the distribution. + */ + _RealType + alpha() const + { return _M_param.alpha(); } + + /** + * @brief Returns the @f$\beta@f$ of the distribution. + */ + _RealType + beta() const + { return _M_param.beta(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two gamma distributions have the same + * parameters and the sequences that would be generated + * are equal. + */ + friend bool + operator==(const gamma_distribution& __d1, + const gamma_distribution& __d2) + { return (__d1._M_param == __d2._M_param + && __d1._M_nd == __d2._M_nd); } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + + std::normal_distribution _M_nd; + }; + + /** + * @brief Return true if two gamma distributions are different. + */ + template + inline bool + operator!=(const std::gamma_distribution<_RealType>& __d1, + const std::gamma_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A chi_squared_distribution random number distribution. + * + * The formula for the normal probability mass function is + * @f$p(x|n) = \frac{x^{(n/2) - 1}e^{-x/2}}{\Gamma(n/2) 2^{n/2}}@f$ + */ + template + class chi_squared_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef chi_squared_distribution<_RealType> distribution_type; + + param_type() : param_type(1) { } + + explicit + param_type(_RealType __n) + : _M_n(__n) + { } + + _RealType + n() const + { return _M_n; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_n == __p2._M_n; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_n; + }; + + chi_squared_distribution() : chi_squared_distribution(1) { } + + explicit + chi_squared_distribution(_RealType __n) + : _M_param(__n), _M_gd(__n / 2) + { } + + explicit + chi_squared_distribution(const param_type& __p) + : _M_param(__p), _M_gd(__p.n() / 2) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { _M_gd.reset(); } + + /** + * + */ + _RealType + n() const + { return _M_param.n(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { + _M_param = __param; + typedef typename std::gamma_distribution::param_type + param_type; + _M_gd.param(param_type{__param.n() / 2}); + } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return 2 * _M_gd(__urng); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + typedef typename std::gamma_distribution::param_type + param_type; + return 2 * _M_gd(__urng, param_type(__p.n() / 2)); + } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { typename std::gamma_distribution::param_type + __p2(__p.n() / 2); + this->__generate_impl(__f, __t, __urng, __p2); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { typename std::gamma_distribution::param_type + __p2(__p.n() / 2); + this->__generate_impl(__f, __t, __urng, __p2); } + + /** + * @brief Return true if two Chi-squared distributions have + * the same parameters and the sequences that would be + * generated are equal. + */ + friend bool + operator==(const chi_squared_distribution& __d1, + const chi_squared_distribution& __d2) + { return __d1._M_param == __d2._M_param && __d1._M_gd == __d2._M_gd; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng); + + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const typename + std::gamma_distribution::param_type& __p); + + param_type _M_param; + + std::gamma_distribution _M_gd; + }; + + /** + * @brief Return true if two Chi-squared distributions are different. + */ + template + inline bool + operator!=(const std::chi_squared_distribution<_RealType>& __d1, + const std::chi_squared_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A cauchy_distribution random number distribution. + * + * The formula for the normal probability mass function is + * @f$p(x|a,b) = (\pi b (1 + (\frac{x-a}{b})^2))^{-1}@f$ + */ + template + class cauchy_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef cauchy_distribution<_RealType> distribution_type; + + param_type() : param_type(0) { } + + explicit + param_type(_RealType __a, _RealType __b = _RealType(1)) + : _M_a(__a), _M_b(__b) + { } + + _RealType + a() const + { return _M_a; } + + _RealType + b() const + { return _M_b; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_a; + _RealType _M_b; + }; + + cauchy_distribution() : cauchy_distribution(0.0) { } + + explicit + cauchy_distribution(_RealType __a, _RealType __b = 1.0) + : _M_param(__a, __b) + { } + + explicit + cauchy_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { } + + /** + * + */ + _RealType + a() const + { return _M_param.a(); } + + _RealType + b() const + { return _M_param.b(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return std::numeric_limits::lowest(); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two Cauchy distributions have + * the same parameters. + */ + friend bool + operator==(const cauchy_distribution& __d1, + const cauchy_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two Cauchy distributions have + * different parameters. + */ + template + inline bool + operator!=(const std::cauchy_distribution<_RealType>& __d1, + const std::cauchy_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + + /** + * @brief A fisher_f_distribution random number distribution. + * + * The formula for the normal probability mass function is + * @f[ + * p(x|m,n) = \frac{\Gamma((m+n)/2)}{\Gamma(m/2)\Gamma(n/2)} + * (\frac{m}{n})^{m/2} x^{(m/2)-1} + * (1 + \frac{mx}{n})^{-(m+n)/2} + * @f] + */ + template + class fisher_f_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef fisher_f_distribution<_RealType> distribution_type; + + param_type() : param_type(1) { } + + explicit + param_type(_RealType __m, _RealType __n = _RealType(1)) + : _M_m(__m), _M_n(__n) + { } + + _RealType + m() const + { return _M_m; } + + _RealType + n() const + { return _M_n; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_m == __p2._M_m && __p1._M_n == __p2._M_n; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_m; + _RealType _M_n; + }; + + fisher_f_distribution() : fisher_f_distribution(1.0) { } + + explicit + fisher_f_distribution(_RealType __m, + _RealType __n = _RealType(1)) + : _M_param(__m, __n), _M_gd_x(__m / 2), _M_gd_y(__n / 2) + { } + + explicit + fisher_f_distribution(const param_type& __p) + : _M_param(__p), _M_gd_x(__p.m() / 2), _M_gd_y(__p.n() / 2) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { + _M_gd_x.reset(); + _M_gd_y.reset(); + } + + /** + * + */ + _RealType + m() const + { return _M_param.m(); } + + _RealType + n() const + { return _M_param.n(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return (_M_gd_x(__urng) * n()) / (_M_gd_y(__urng) * m()); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + typedef typename std::gamma_distribution::param_type + param_type; + return ((_M_gd_x(__urng, param_type(__p.m() / 2)) * n()) + / (_M_gd_y(__urng, param_type(__p.n() / 2)) * m())); + } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two Fisher f distributions have + * the same parameters and the sequences that would + * be generated are equal. + */ + friend bool + operator==(const fisher_f_distribution& __d1, + const fisher_f_distribution& __d2) + { return (__d1._M_param == __d2._M_param + && __d1._M_gd_x == __d2._M_gd_x + && __d1._M_gd_y == __d2._M_gd_y); } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng); + + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + + std::gamma_distribution _M_gd_x, _M_gd_y; + }; + + /** + * @brief Return true if two Fisher f distributions are different. + */ + template + inline bool + operator!=(const std::fisher_f_distribution<_RealType>& __d1, + const std::fisher_f_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + /** + * @brief A student_t_distribution random number distribution. + * + * The formula for the normal probability mass function is: + * @f[ + * p(x|n) = \frac{1}{\sqrt(n\pi)} \frac{\Gamma((n+1)/2)}{\Gamma(n/2)} + * (1 + \frac{x^2}{n}) ^{-(n+1)/2} + * @f] + */ + template + class student_t_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef student_t_distribution<_RealType> distribution_type; + + param_type() : param_type(1) { } + + explicit + param_type(_RealType __n) + : _M_n(__n) + { } + + _RealType + n() const + { return _M_n; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_n == __p2._M_n; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_n; + }; + + student_t_distribution() : student_t_distribution(1.0) { } + + explicit + student_t_distribution(_RealType __n) + : _M_param(__n), _M_nd(), _M_gd(__n / 2, 2) + { } + + explicit + student_t_distribution(const param_type& __p) + : _M_param(__p), _M_nd(), _M_gd(__p.n() / 2, 2) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { + _M_nd.reset(); + _M_gd.reset(); + } + + /** + * + */ + _RealType + n() const + { return _M_param.n(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return std::numeric_limits::lowest(); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return _M_nd(__urng) * std::sqrt(n() / _M_gd(__urng)); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + typedef typename std::gamma_distribution::param_type + param_type; + + const result_type __g = _M_gd(__urng, param_type(__p.n() / 2, 2)); + return _M_nd(__urng) * std::sqrt(__p.n() / __g); + } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two Student t distributions have + * the same parameters and the sequences that would + * be generated are equal. + */ + friend bool + operator==(const student_t_distribution& __d1, + const student_t_distribution& __d2) + { return (__d1._M_param == __d2._M_param + && __d1._M_nd == __d2._M_nd && __d1._M_gd == __d2._M_gd); } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng); + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + + std::normal_distribution _M_nd; + std::gamma_distribution _M_gd; + }; + + /** + * @brief Return true if two Student t distributions are different. + */ + template + inline bool + operator!=(const std::student_t_distribution<_RealType>& __d1, + const std::student_t_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /* @} */ // group random_distributions_normal + + /** + * @addtogroup random_distributions_bernoulli Bernoulli Distributions + * @ingroup random_distributions + * @{ + */ + + /** + * @brief A Bernoulli random number distribution. + * + * Generates a sequence of true and false values with likelihood @f$p@f$ + * that true will come up and @f$(1 - p)@f$ that false will appear. + */ + class bernoulli_distribution + { + public: + /** The type of the range of the distribution. */ + typedef bool result_type; + + /** Parameter type. */ + struct param_type + { + typedef bernoulli_distribution distribution_type; + + param_type() : param_type(0.5) { } + + explicit + param_type(double __p) + : _M_p(__p) + { + __glibcxx_assert((_M_p >= 0.0) && (_M_p <= 1.0)); + } + + double + p() const + { return _M_p; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_p == __p2._M_p; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + double _M_p; + }; + + public: + /** + * @brief Constructs a Bernoulli distribution with likelihood 0.5. + */ + bernoulli_distribution() : bernoulli_distribution(0.5) { } + + /** + * @brief Constructs a Bernoulli distribution with likelihood @p p. + * + * @param __p [IN] The likelihood of a true result being returned. + * Must be in the interval @f$[0, 1]@f$. + */ + explicit + bernoulli_distribution(double __p) + : _M_param(__p) + { } + + explicit + bernoulli_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + * + * Does nothing for a Bernoulli distribution. + */ + void + reset() { } + + /** + * @brief Returns the @p p parameter of the distribution. + */ + double + p() const + { return _M_param.p(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return std::numeric_limits::min(); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + if ((__aurng() - __aurng.min()) + < __p.p() * (__aurng.max() - __aurng.min())) + return true; + return false; + } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two Bernoulli distributions have + * the same parameters. + */ + friend bool + operator==(const bernoulli_distribution& __d1, + const bernoulli_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two Bernoulli distributions have + * different parameters. + */ + inline bool + operator!=(const std::bernoulli_distribution& __d1, + const std::bernoulli_distribution& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A discrete binomial random number distribution. + * + * The formula for the binomial probability density function is + * @f$p(i|t,p) = \binom{t}{i} p^i (1 - p)^{t - i}@f$ where @f$t@f$ + * and @f$p@f$ are the parameters of the distribution. + */ + template + class binomial_distribution + { + static_assert(std::is_integral<_IntType>::value, + "result_type must be an integral type"); + + public: + /** The type of the range of the distribution. */ + typedef _IntType result_type; + + /** Parameter type. */ + struct param_type + { + typedef binomial_distribution<_IntType> distribution_type; + friend class binomial_distribution<_IntType>; + + param_type() : param_type(1) { } + + explicit + param_type(_IntType __t, double __p = 0.5) + : _M_t(__t), _M_p(__p) + { + __glibcxx_assert((_M_t >= _IntType(0)) + && (_M_p >= 0.0) + && (_M_p <= 1.0)); + _M_initialize(); + } + + _IntType + t() const + { return _M_t; } + + double + p() const + { return _M_p; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_t == __p2._M_t && __p1._M_p == __p2._M_p; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + void + _M_initialize(); + + _IntType _M_t; + double _M_p; + + double _M_q; +#if _GLIBCXX_USE_C99_MATH_TR1 + double _M_d1, _M_d2, _M_s1, _M_s2, _M_c, + _M_a1, _M_a123, _M_s, _M_lf, _M_lp1p; +#endif + bool _M_easy; + }; + + // constructors and member functions + + binomial_distribution() : binomial_distribution(1) { } + + explicit + binomial_distribution(_IntType __t, double __p = 0.5) + : _M_param(__t, __p), _M_nd() + { } + + explicit + binomial_distribution(const param_type& __p) + : _M_param(__p), _M_nd() + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { _M_nd.reset(); } + + /** + * @brief Returns the distribution @p t parameter. + */ + _IntType + t() const + { return _M_param.t(); } + + /** + * @brief Returns the distribution @p p parameter. + */ + double + p() const + { return _M_param.p(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return 0; } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return _M_param.t(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two binomial distributions have + * the same parameters and the sequences that would + * be generated are equal. + */ + friend bool + operator==(const binomial_distribution& __d1, + const binomial_distribution& __d2) +#ifdef _GLIBCXX_USE_C99_MATH_TR1 + { return __d1._M_param == __d2._M_param && __d1._M_nd == __d2._M_nd; } +#else + { return __d1._M_param == __d2._M_param; } +#endif + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + result_type + _M_waiting(_UniformRandomNumberGenerator& __urng, + _IntType __t, double __q); + + param_type _M_param; + + // NB: Unused when _GLIBCXX_USE_C99_MATH_TR1 is undefined. + std::normal_distribution _M_nd; + }; + + /** + * @brief Return true if two binomial distributions are different. + */ + template + inline bool + operator!=(const std::binomial_distribution<_IntType>& __d1, + const std::binomial_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A discrete geometric random number distribution. + * + * The formula for the geometric probability density function is + * @f$p(i|p) = p(1 - p)^{i}@f$ where @f$p@f$ is the parameter of the + * distribution. + */ + template + class geometric_distribution + { + static_assert(std::is_integral<_IntType>::value, + "result_type must be an integral type"); + + public: + /** The type of the range of the distribution. */ + typedef _IntType result_type; + + /** Parameter type. */ + struct param_type + { + typedef geometric_distribution<_IntType> distribution_type; + friend class geometric_distribution<_IntType>; + + param_type() : param_type(0.5) { } + + explicit + param_type(double __p) + : _M_p(__p) + { + __glibcxx_assert((_M_p > 0.0) && (_M_p < 1.0)); + _M_initialize(); + } + + double + p() const + { return _M_p; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_p == __p2._M_p; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + void + _M_initialize() + { _M_log_1_p = std::log(1.0 - _M_p); } + + double _M_p; + + double _M_log_1_p; + }; + + // constructors and member functions + + geometric_distribution() : geometric_distribution(0.5) { } + + explicit + geometric_distribution(double __p) + : _M_param(__p) + { } + + explicit + geometric_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + * + * Does nothing for the geometric distribution. + */ + void + reset() { } + + /** + * @brief Returns the distribution parameter @p p. + */ + double + p() const + { return _M_param.p(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return 0; } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two geometric distributions have + * the same parameters. + */ + friend bool + operator==(const geometric_distribution& __d1, + const geometric_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two geometric distributions have + * different parameters. + */ + template + inline bool + operator!=(const std::geometric_distribution<_IntType>& __d1, + const std::geometric_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A negative_binomial_distribution random number distribution. + * + * The formula for the negative binomial probability mass function is + * @f$p(i) = \binom{n}{i} p^i (1 - p)^{t - i}@f$ where @f$t@f$ + * and @f$p@f$ are the parameters of the distribution. + */ + template + class negative_binomial_distribution + { + static_assert(std::is_integral<_IntType>::value, + "result_type must be an integral type"); + + public: + /** The type of the range of the distribution. */ + typedef _IntType result_type; + + /** Parameter type. */ + struct param_type + { + typedef negative_binomial_distribution<_IntType> distribution_type; + + param_type() : param_type(1) { } + + explicit + param_type(_IntType __k, double __p = 0.5) + : _M_k(__k), _M_p(__p) + { + __glibcxx_assert((_M_k > 0) && (_M_p > 0.0) && (_M_p <= 1.0)); + } + + _IntType + k() const + { return _M_k; } + + double + p() const + { return _M_p; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_k == __p2._M_k && __p1._M_p == __p2._M_p; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _IntType _M_k; + double _M_p; + }; + + negative_binomial_distribution() : negative_binomial_distribution(1) { } + + explicit + negative_binomial_distribution(_IntType __k, double __p = 0.5) + : _M_param(__k, __p), _M_gd(__k, (1.0 - __p) / __p) + { } + + explicit + negative_binomial_distribution(const param_type& __p) + : _M_param(__p), _M_gd(__p.k(), (1.0 - __p.p()) / __p.p()) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { _M_gd.reset(); } + + /** + * @brief Return the @f$k@f$ parameter of the distribution. + */ + _IntType + k() const + { return _M_param.k(); } + + /** + * @brief Return the @f$p@f$ parameter of the distribution. + */ + double + p() const + { return _M_param.p(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng); + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate_impl(__f, __t, __urng); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two negative binomial distributions have + * the same parameters and the sequences that would be + * generated are equal. + */ + friend bool + operator==(const negative_binomial_distribution& __d1, + const negative_binomial_distribution& __d2) + { return __d1._M_param == __d2._M_param && __d1._M_gd == __d2._M_gd; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng); + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + + std::gamma_distribution _M_gd; + }; + + /** + * @brief Return true if two negative binomial distributions are different. + */ + template + inline bool + operator!=(const std::negative_binomial_distribution<_IntType>& __d1, + const std::negative_binomial_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + + /* @} */ // group random_distributions_bernoulli + + /** + * @addtogroup random_distributions_poisson Poisson Distributions + * @ingroup random_distributions + * @{ + */ + + /** + * @brief A discrete Poisson random number distribution. + * + * The formula for the Poisson probability density function is + * @f$p(i|\mu) = \frac{\mu^i}{i!} e^{-\mu}@f$ where @f$\mu@f$ is the + * parameter of the distribution. + */ + template + class poisson_distribution + { + static_assert(std::is_integral<_IntType>::value, + "result_type must be an integral type"); + + public: + /** The type of the range of the distribution. */ + typedef _IntType result_type; + + /** Parameter type. */ + struct param_type + { + typedef poisson_distribution<_IntType> distribution_type; + friend class poisson_distribution<_IntType>; + + param_type() : param_type(1.0) { } + + explicit + param_type(double __mean) + : _M_mean(__mean) + { + __glibcxx_assert(_M_mean > 0.0); + _M_initialize(); + } + + double + mean() const + { return _M_mean; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_mean == __p2._M_mean; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + // Hosts either log(mean) or the threshold of the simple method. + void + _M_initialize(); + + double _M_mean; + + double _M_lm_thr; +#if _GLIBCXX_USE_C99_MATH_TR1 + double _M_lfm, _M_sm, _M_d, _M_scx, _M_1cx, _M_c2b, _M_cb; +#endif + }; + + // constructors and member functions + + poisson_distribution() : poisson_distribution(1.0) { } + + explicit + poisson_distribution(double __mean) + : _M_param(__mean), _M_nd() + { } + + explicit + poisson_distribution(const param_type& __p) + : _M_param(__p), _M_nd() + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { _M_nd.reset(); } + + /** + * @brief Returns the distribution parameter @p mean. + */ + double + mean() const + { return _M_param.mean(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return 0; } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two Poisson distributions have the same + * parameters and the sequences that would be generated + * are equal. + */ + friend bool + operator==(const poisson_distribution& __d1, + const poisson_distribution& __d2) +#ifdef _GLIBCXX_USE_C99_MATH_TR1 + { return __d1._M_param == __d2._M_param && __d1._M_nd == __d2._M_nd; } +#else + { return __d1._M_param == __d2._M_param; } +#endif + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + + // NB: Unused when _GLIBCXX_USE_C99_MATH_TR1 is undefined. + std::normal_distribution _M_nd; + }; + + /** + * @brief Return true if two Poisson distributions are different. + */ + template + inline bool + operator!=(const std::poisson_distribution<_IntType>& __d1, + const std::poisson_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief An exponential continuous distribution for random numbers. + * + * The formula for the exponential probability density function is + * @f$p(x|\lambda) = \lambda e^{-\lambda x}@f$. + * + * + * + * + * + * + * + * + *
Distribution Statistics
Mean@f$\frac{1}{\lambda}@f$
Median@f$\frac{\ln 2}{\lambda}@f$
Mode@f$zero@f$
Range@f$[0, \infty]@f$
Standard Deviation@f$\frac{1}{\lambda}@f$
+ */ + template + class exponential_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef exponential_distribution<_RealType> distribution_type; + + param_type() : param_type(1.0) { } + + explicit + param_type(_RealType __lambda) + : _M_lambda(__lambda) + { + __glibcxx_assert(_M_lambda > _RealType(0)); + } + + _RealType + lambda() const + { return _M_lambda; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_lambda == __p2._M_lambda; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_lambda; + }; + + public: + /** + * @brief Constructs an exponential distribution with inverse scale + * parameter 1.0 + */ + exponential_distribution() : exponential_distribution(1.0) { } + + /** + * @brief Constructs an exponential distribution with inverse scale + * parameter @f$\lambda@f$. + */ + explicit + exponential_distribution(_RealType __lambda) + : _M_param(__lambda) + { } + + explicit + exponential_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + * + * Has no effect on exponential distributions. + */ + void + reset() { } + + /** + * @brief Returns the inverse scale parameter of the distribution. + */ + _RealType + lambda() const + { return _M_param.lambda(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + return -std::log(result_type(1) - __aurng()) / __p.lambda(); + } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two exponential distributions have the same + * parameters. + */ + friend bool + operator==(const exponential_distribution& __d1, + const exponential_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two exponential distributions have different + * parameters. + */ + template + inline bool + operator!=(const std::exponential_distribution<_RealType>& __d1, + const std::exponential_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A weibull_distribution random number distribution. + * + * The formula for the normal probability density function is: + * @f[ + * p(x|\alpha,\beta) = \frac{\alpha}{\beta} (\frac{x}{\beta})^{\alpha-1} + * \exp{(-(\frac{x}{\beta})^\alpha)} + * @f] + */ + template + class weibull_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef weibull_distribution<_RealType> distribution_type; + + param_type() : param_type(1.0) { } + + explicit + param_type(_RealType __a, _RealType __b = _RealType(1.0)) + : _M_a(__a), _M_b(__b) + { } + + _RealType + a() const + { return _M_a; } + + _RealType + b() const + { return _M_b; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_a; + _RealType _M_b; + }; + + weibull_distribution() : weibull_distribution(1.0) { } + + explicit + weibull_distribution(_RealType __a, _RealType __b = _RealType(1)) + : _M_param(__a, __b) + { } + + explicit + weibull_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { } + + /** + * @brief Return the @f$a@f$ parameter of the distribution. + */ + _RealType + a() const + { return _M_param.a(); } + + /** + * @brief Return the @f$b@f$ parameter of the distribution. + */ + _RealType + b() const + { return _M_param.b(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two Weibull distributions have the same + * parameters. + */ + friend bool + operator==(const weibull_distribution& __d1, + const weibull_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two Weibull distributions have different + * parameters. + */ + template + inline bool + operator!=(const std::weibull_distribution<_RealType>& __d1, + const std::weibull_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A extreme_value_distribution random number distribution. + * + * The formula for the normal probability mass function is + * @f[ + * p(x|a,b) = \frac{1}{b} + * \exp( \frac{a-x}{b} - \exp(\frac{a-x}{b})) + * @f] + */ + template + class extreme_value_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef extreme_value_distribution<_RealType> distribution_type; + + param_type() : param_type(0.0) { } + + explicit + param_type(_RealType __a, _RealType __b = _RealType(1.0)) + : _M_a(__a), _M_b(__b) + { } + + _RealType + a() const + { return _M_a; } + + _RealType + b() const + { return _M_b; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _RealType _M_a; + _RealType _M_b; + }; + + extreme_value_distribution() : extreme_value_distribution(0.0) { } + + explicit + extreme_value_distribution(_RealType __a, _RealType __b = _RealType(1)) + : _M_param(__a, __b) + { } + + explicit + extreme_value_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { } + + /** + * @brief Return the @f$a@f$ parameter of the distribution. + */ + _RealType + a() const + { return _M_param.a(); } + + /** + * @brief Return the @f$b@f$ parameter of the distribution. + */ + _RealType + b() const + { return _M_param.b(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return std::numeric_limits::lowest(); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { return std::numeric_limits::max(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two extreme value distributions have the same + * parameters. + */ + friend bool + operator==(const extreme_value_distribution& __d1, + const extreme_value_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two extreme value distributions have different + * parameters. + */ + template + inline bool + operator!=(const std::extreme_value_distribution<_RealType>& __d1, + const std::extreme_value_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A discrete_distribution random number distribution. + * + * The formula for the discrete probability mass function is + * + */ + template + class discrete_distribution + { + static_assert(std::is_integral<_IntType>::value, + "result_type must be an integral type"); + + public: + /** The type of the range of the distribution. */ + typedef _IntType result_type; + + /** Parameter type. */ + struct param_type + { + typedef discrete_distribution<_IntType> distribution_type; + friend class discrete_distribution<_IntType>; + + param_type() + : _M_prob(), _M_cp() + { } + + template + param_type(_InputIterator __wbegin, + _InputIterator __wend) + : _M_prob(__wbegin, __wend), _M_cp() + { _M_initialize(); } + + param_type(initializer_list __wil) + : _M_prob(__wil.begin(), __wil.end()), _M_cp() + { _M_initialize(); } + + template + param_type(size_t __nw, double __xmin, double __xmax, + _Func __fw); + + // See: http://cpp-next.com/archive/2010/10/implicit-move-must-go/ + param_type(const param_type&) = default; + param_type& operator=(const param_type&) = default; + + std::vector + probabilities() const + { return _M_prob.empty() ? std::vector(1, 1.0) : _M_prob; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_prob == __p2._M_prob; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + void + _M_initialize(); + + std::vector _M_prob; + std::vector _M_cp; + }; + + discrete_distribution() + : _M_param() + { } + + template + discrete_distribution(_InputIterator __wbegin, + _InputIterator __wend) + : _M_param(__wbegin, __wend) + { } + + discrete_distribution(initializer_list __wl) + : _M_param(__wl) + { } + + template + discrete_distribution(size_t __nw, double __xmin, double __xmax, + _Func __fw) + : _M_param(__nw, __xmin, __xmax, __fw) + { } + + explicit + discrete_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { } + + /** + * @brief Returns the probabilities of the distribution. + */ + std::vector + probabilities() const + { + return _M_param._M_prob.empty() + ? std::vector(1, 1.0) : _M_param._M_prob; + } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { return result_type(0); } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { + return _M_param._M_prob.empty() + ? result_type(0) : result_type(_M_param._M_prob.size() - 1); + } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two discrete distributions have the same + * parameters. + */ + friend bool + operator==(const discrete_distribution& __d1, + const discrete_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two discrete distributions have different + * parameters. + */ + template + inline bool + operator!=(const std::discrete_distribution<_IntType>& __d1, + const std::discrete_distribution<_IntType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A piecewise_constant_distribution random number distribution. + * + * The formula for the piecewise constant probability mass function is + * + */ + template + class piecewise_constant_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef piecewise_constant_distribution<_RealType> distribution_type; + friend class piecewise_constant_distribution<_RealType>; + + param_type() + : _M_int(), _M_den(), _M_cp() + { } + + template + param_type(_InputIteratorB __bfirst, + _InputIteratorB __bend, + _InputIteratorW __wbegin); + + template + param_type(initializer_list<_RealType> __bi, _Func __fw); + + template + param_type(size_t __nw, _RealType __xmin, _RealType __xmax, + _Func __fw); + + // See: http://cpp-next.com/archive/2010/10/implicit-move-must-go/ + param_type(const param_type&) = default; + param_type& operator=(const param_type&) = default; + + std::vector<_RealType> + intervals() const + { + if (_M_int.empty()) + { + std::vector<_RealType> __tmp(2); + __tmp[1] = _RealType(1); + return __tmp; + } + else + return _M_int; + } + + std::vector + densities() const + { return _M_den.empty() ? std::vector(1, 1.0) : _M_den; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_int == __p2._M_int && __p1._M_den == __p2._M_den; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + void + _M_initialize(); + + std::vector<_RealType> _M_int; + std::vector _M_den; + std::vector _M_cp; + }; + + piecewise_constant_distribution() + : _M_param() + { } + + template + piecewise_constant_distribution(_InputIteratorB __bfirst, + _InputIteratorB __bend, + _InputIteratorW __wbegin) + : _M_param(__bfirst, __bend, __wbegin) + { } + + template + piecewise_constant_distribution(initializer_list<_RealType> __bl, + _Func __fw) + : _M_param(__bl, __fw) + { } + + template + piecewise_constant_distribution(size_t __nw, + _RealType __xmin, _RealType __xmax, + _Func __fw) + : _M_param(__nw, __xmin, __xmax, __fw) + { } + + explicit + piecewise_constant_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + */ + void + reset() + { } + + /** + * @brief Returns a vector of the intervals. + */ + std::vector<_RealType> + intervals() const + { + if (_M_param._M_int.empty()) + { + std::vector<_RealType> __tmp(2); + __tmp[1] = _RealType(1); + return __tmp; + } + else + return _M_param._M_int; + } + + /** + * @brief Returns a vector of the probability densities. + */ + std::vector + densities() const + { + return _M_param._M_den.empty() + ? std::vector(1, 1.0) : _M_param._M_den; + } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { + return _M_param._M_int.empty() + ? result_type(0) : _M_param._M_int.front(); + } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { + return _M_param._M_int.empty() + ? result_type(1) : _M_param._M_int.back(); + } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two piecewise constant distributions have the + * same parameters. + */ + friend bool + operator==(const piecewise_constant_distribution& __d1, + const piecewise_constant_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two piecewise constant distributions have + * different parameters. + */ + template + inline bool + operator!=(const std::piecewise_constant_distribution<_RealType>& __d1, + const std::piecewise_constant_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /** + * @brief A piecewise_linear_distribution random number distribution. + * + * The formula for the piecewise linear probability mass function is + * + */ + template + class piecewise_linear_distribution + { + static_assert(std::is_floating_point<_RealType>::value, + "result_type must be a floating point type"); + + public: + /** The type of the range of the distribution. */ + typedef _RealType result_type; + + /** Parameter type. */ + struct param_type + { + typedef piecewise_linear_distribution<_RealType> distribution_type; + friend class piecewise_linear_distribution<_RealType>; + + param_type() + : _M_int(), _M_den(), _M_cp(), _M_m() + { } + + template + param_type(_InputIteratorB __bfirst, + _InputIteratorB __bend, + _InputIteratorW __wbegin); + + template + param_type(initializer_list<_RealType> __bl, _Func __fw); + + template + param_type(size_t __nw, _RealType __xmin, _RealType __xmax, + _Func __fw); + + // See: http://cpp-next.com/archive/2010/10/implicit-move-must-go/ + param_type(const param_type&) = default; + param_type& operator=(const param_type&) = default; + + std::vector<_RealType> + intervals() const + { + if (_M_int.empty()) + { + std::vector<_RealType> __tmp(2); + __tmp[1] = _RealType(1); + return __tmp; + } + else + return _M_int; + } + + std::vector + densities() const + { return _M_den.empty() ? std::vector(2, 1.0) : _M_den; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_int == __p2._M_int && __p1._M_den == __p2._M_den; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + void + _M_initialize(); + + std::vector<_RealType> _M_int; + std::vector _M_den; + std::vector _M_cp; + std::vector _M_m; + }; + + piecewise_linear_distribution() + : _M_param() + { } + + template + piecewise_linear_distribution(_InputIteratorB __bfirst, + _InputIteratorB __bend, + _InputIteratorW __wbegin) + : _M_param(__bfirst, __bend, __wbegin) + { } + + template + piecewise_linear_distribution(initializer_list<_RealType> __bl, + _Func __fw) + : _M_param(__bl, __fw) + { } + + template + piecewise_linear_distribution(size_t __nw, + _RealType __xmin, _RealType __xmax, + _Func __fw) + : _M_param(__nw, __xmin, __xmax, __fw) + { } + + explicit + piecewise_linear_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * Resets the distribution state. + */ + void + reset() + { } + + /** + * @brief Return the intervals of the distribution. + */ + std::vector<_RealType> + intervals() const + { + if (_M_param._M_int.empty()) + { + std::vector<_RealType> __tmp(2); + __tmp[1] = _RealType(1); + return __tmp; + } + else + return _M_param._M_int; + } + + /** + * @brief Return a vector of the probability densities of the + * distribution. + */ + std::vector + densities() const + { + return _M_param._M_den.empty() + ? std::vector(2, 1.0) : _M_param._M_den; + } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the greatest lower bound value of the distribution. + */ + result_type + min() const + { + return _M_param._M_int.empty() + ? result_type(0) : _M_param._M_int.front(); + } + + /** + * @brief Returns the least upper bound value of the distribution. + */ + result_type + max() const + { + return _M_param._M_int.empty() + ? result_type(1) : _M_param._M_int.back(); + } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two piecewise linear distributions have the + * same parameters. + */ + friend bool + operator==(const piecewise_linear_distribution& __d1, + const piecewise_linear_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + /** + * @brief Return true if two piecewise linear distributions have + * different parameters. + */ + template + inline bool + operator!=(const std::piecewise_linear_distribution<_RealType>& __d1, + const std::piecewise_linear_distribution<_RealType>& __d2) + { return !(__d1 == __d2); } + + + /* @} */ // group random_distributions_poisson + + /* @} */ // group random_distributions + + /** + * @addtogroup random_utilities Random Number Utilities + * @ingroup random + * @{ + */ + + /** + * @brief The seed_seq class generates sequences of seeds for random + * number generators. + */ + class seed_seq + { + public: + /** The type of the seed vales. */ + typedef uint_least32_t result_type; + + /** Default constructor. */ + seed_seq() noexcept + : _M_v() + { } + + template + seed_seq(std::initializer_list<_IntType> __il); + + template + seed_seq(_InputIterator __begin, _InputIterator __end); + + // generating functions + template + void + generate(_RandomAccessIterator __begin, _RandomAccessIterator __end); + + // property functions + size_t size() const noexcept + { return _M_v.size(); } + + template + void + param(_OutputIterator __dest) const + { std::copy(_M_v.begin(), _M_v.end(), __dest); } + + // no copy functions + seed_seq(const seed_seq&) = delete; + seed_seq& operator=(const seed_seq&) = delete; + + private: + std::vector _M_v; + }; + + /* @} */ // group random_utilities + + /* @} */ // group random + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/random.tcc b/resources/sources/avr-libstdcpp/include/bits/random.tcc new file mode 100644 index 000000000..a9b90d6ca --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/random.tcc @@ -0,0 +1,2193 @@ +// random number generation (out of line) -*- C++ -*- + +// Copyright (C) 2009-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/random.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{random} + */ + +#ifndef _RANDOM_TCC +#define _RANDOM_TCC 1 + +#include // std::accumulate and std::partial_sum + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /* + * (Further) implementation-space details. + */ + namespace __detail + { + // General case for x = (ax + c) mod m -- use Schrage's algorithm + // to avoid integer overflow. + // + // Preconditions: a > 0, m > 0. + // + // Note: only works correctly for __m % __a < __m / __a. + template + _Tp + _Mod<_Tp, __m, __a, __c, false, true>:: + __calc(_Tp __x) + { + if (__a == 1) + __x %= __m; + else + { + static const _Tp __q = __m / __a; + static const _Tp __r = __m % __a; + + _Tp __t1 = __a * (__x % __q); + _Tp __t2 = __r * (__x / __q); + if (__t1 >= __t2) + __x = __t1 - __t2; + else + __x = __m - __t2 + __t1; + } + + if (__c != 0) + { + const _Tp __d = __m - __x; + if (__d > __c) + __x += __c; + else + __x = __c - __d; + } + return __x; + } + + template + _OutputIterator + __normalize(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, const _Tp& __factor) + { + for (; __first != __last; ++__first, ++__result) + *__result = *__first / __factor; + return __result; + } + + } // namespace __detail + + template + constexpr _UIntType + linear_congruential_engine<_UIntType, __a, __c, __m>::multiplier; + + template + constexpr _UIntType + linear_congruential_engine<_UIntType, __a, __c, __m>::increment; + + template + constexpr _UIntType + linear_congruential_engine<_UIntType, __a, __c, __m>::modulus; + + template + constexpr _UIntType + linear_congruential_engine<_UIntType, __a, __c, __m>::default_seed; + + /** + * Seeds the LCR with integral value @p __s, adjusted so that the + * ring identity is never a member of the convergence set. + */ + template + void + linear_congruential_engine<_UIntType, __a, __c, __m>:: + seed(result_type __s) + { + if ((__detail::__mod<_UIntType, __m>(__c) == 0) + && (__detail::__mod<_UIntType, __m>(__s) == 0)) + _M_x = 1; + else + _M_x = __detail::__mod<_UIntType, __m>(__s); + } + + /** + * Seeds the LCR engine with a value generated by @p __q. + */ + template + template + auto + linear_congruential_engine<_UIntType, __a, __c, __m>:: + seed(_Sseq& __q) + -> _If_seed_seq<_Sseq> + { + const _UIntType __k0 = __m == 0 ? std::numeric_limits<_UIntType>::digits + : std::__lg(__m); + const _UIntType __k = (__k0 + 31) / 32; + uint_least32_t __arr[__k + 3]; + __q.generate(__arr + 0, __arr + __k + 3); + _UIntType __factor = 1u; + _UIntType __sum = 0u; + for (size_t __j = 0; __j < __k; ++__j) + { + __sum += __arr[__j + 3] * __factor; + __factor *= __detail::_Shift<_UIntType, 32>::__value; + } + seed(__sum); + } + + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::word_size; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::state_size; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::shift_size; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::mask_bits; + + template + constexpr _UIntType + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::xor_mask; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_u; + + template + constexpr _UIntType + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_d; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_s; + + template + constexpr _UIntType + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_b; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_t; + + template + constexpr _UIntType + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_c; + + template + constexpr size_t + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::tempering_l; + + template + constexpr _UIntType + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>:: + initialization_multiplier; + + template + constexpr _UIntType + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::default_seed; + + template + void + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>:: + seed(result_type __sd) + { + _M_x[0] = __detail::__mod<_UIntType, + __detail::_Shift<_UIntType, __w>::__value>(__sd); + + for (size_t __i = 1; __i < state_size; ++__i) + { + _UIntType __x = _M_x[__i - 1]; + __x ^= __x >> (__w - 2); + __x *= __f; + __x += __detail::__mod<_UIntType, __n>(__i); + _M_x[__i] = __detail::__mod<_UIntType, + __detail::_Shift<_UIntType, __w>::__value>(__x); + } + _M_p = state_size; + } + + template + template + auto + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>:: + seed(_Sseq& __q) + -> _If_seed_seq<_Sseq> + { + const _UIntType __upper_mask = (~_UIntType()) << __r; + const size_t __k = (__w + 31) / 32; + uint_least32_t __arr[__n * __k]; + __q.generate(__arr + 0, __arr + __n * __k); + + bool __zero = true; + for (size_t __i = 0; __i < state_size; ++__i) + { + _UIntType __factor = 1u; + _UIntType __sum = 0u; + for (size_t __j = 0; __j < __k; ++__j) + { + __sum += __arr[__k * __i + __j] * __factor; + __factor *= __detail::_Shift<_UIntType, 32>::__value; + } + _M_x[__i] = __detail::__mod<_UIntType, + __detail::_Shift<_UIntType, __w>::__value>(__sum); + + if (__zero) + { + if (__i == 0) + { + if ((_M_x[0] & __upper_mask) != 0u) + __zero = false; + } + else if (_M_x[__i] != 0u) + __zero = false; + } + } + if (__zero) + _M_x[0] = __detail::_Shift<_UIntType, __w - 1>::__value; + _M_p = state_size; + } + + template + void + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>:: + _M_gen_rand(void) + { + const _UIntType __upper_mask = (~_UIntType()) << __r; + const _UIntType __lower_mask = ~__upper_mask; + + for (size_t __k = 0; __k < (__n - __m); ++__k) + { + _UIntType __y = ((_M_x[__k] & __upper_mask) + | (_M_x[__k + 1] & __lower_mask)); + _M_x[__k] = (_M_x[__k + __m] ^ (__y >> 1) + ^ ((__y & 0x01) ? __a : 0)); + } + + for (size_t __k = (__n - __m); __k < (__n - 1); ++__k) + { + _UIntType __y = ((_M_x[__k] & __upper_mask) + | (_M_x[__k + 1] & __lower_mask)); + _M_x[__k] = (_M_x[__k + (__m - __n)] ^ (__y >> 1) + ^ ((__y & 0x01) ? __a : 0)); + } + + _UIntType __y = ((_M_x[__n - 1] & __upper_mask) + | (_M_x[0] & __lower_mask)); + _M_x[__n - 1] = (_M_x[__m - 1] ^ (__y >> 1) + ^ ((__y & 0x01) ? __a : 0)); + _M_p = 0; + } + + template + void + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>:: + discard(unsigned long long __z) + { + while (__z > state_size - _M_p) + { + __z -= state_size - _M_p; + _M_gen_rand(); + } + _M_p += __z; + } + + template + typename + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>::result_type + mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, + __s, __b, __t, __c, __l, __f>:: + operator()() + { + // Reload the vector - cost is O(n) amortized over n calls. + if (_M_p >= state_size) + _M_gen_rand(); + + // Calculate o(x(i)). + result_type __z = _M_x[_M_p++]; + __z ^= (__z >> __u) & __d; + __z ^= (__z << __s) & __b; + __z ^= (__z << __t) & __c; + __z ^= (__z >> __l); + + return __z; + } + + + template + constexpr size_t + subtract_with_carry_engine<_UIntType, __w, __s, __r>::word_size; + + template + constexpr size_t + subtract_with_carry_engine<_UIntType, __w, __s, __r>::short_lag; + + template + constexpr size_t + subtract_with_carry_engine<_UIntType, __w, __s, __r>::long_lag; + + template + constexpr _UIntType + subtract_with_carry_engine<_UIntType, __w, __s, __r>::default_seed; + + template + void + subtract_with_carry_engine<_UIntType, __w, __s, __r>:: + seed(result_type __value) + { + std::linear_congruential_engine + __lcg(__value == 0u ? default_seed : __value); + + const size_t __n = (__w + 31) / 32; + + for (size_t __i = 0; __i < long_lag; ++__i) + { + _UIntType __sum = 0u; + _UIntType __factor = 1u; + for (size_t __j = 0; __j < __n; ++__j) + { + __sum += __detail::__mod::__value> + (__lcg()) * __factor; + __factor *= __detail::_Shift<_UIntType, 32>::__value; + } + _M_x[__i] = __detail::__mod<_UIntType, + __detail::_Shift<_UIntType, __w>::__value>(__sum); + } + _M_carry = (_M_x[long_lag - 1] == 0) ? 1 : 0; + _M_p = 0; + } + + template + template + auto + subtract_with_carry_engine<_UIntType, __w, __s, __r>:: + seed(_Sseq& __q) + -> _If_seed_seq<_Sseq> + { + const size_t __k = (__w + 31) / 32; + uint_least32_t __arr[__r * __k]; + __q.generate(__arr + 0, __arr + __r * __k); + + for (size_t __i = 0; __i < long_lag; ++__i) + { + _UIntType __sum = 0u; + _UIntType __factor = 1u; + for (size_t __j = 0; __j < __k; ++__j) + { + __sum += __arr[__k * __i + __j] * __factor; + __factor *= __detail::_Shift<_UIntType, 32>::__value; + } + _M_x[__i] = __detail::__mod<_UIntType, + __detail::_Shift<_UIntType, __w>::__value>(__sum); + } + _M_carry = (_M_x[long_lag - 1] == 0) ? 1 : 0; + _M_p = 0; + } + + template + typename subtract_with_carry_engine<_UIntType, __w, __s, __r>:: + result_type + subtract_with_carry_engine<_UIntType, __w, __s, __r>:: + operator()() + { + // Derive short lag index from current index. + long __ps = _M_p - short_lag; + if (__ps < 0) + __ps += long_lag; + + // Calculate new x(i) without overflow or division. + // NB: Thanks to the requirements for _UIntType, _M_x[_M_p] + _M_carry + // cannot overflow. + _UIntType __xi; + if (_M_x[__ps] >= _M_x[_M_p] + _M_carry) + { + __xi = _M_x[__ps] - _M_x[_M_p] - _M_carry; + _M_carry = 0; + } + else + { + __xi = (__detail::_Shift<_UIntType, __w>::__value + - _M_x[_M_p] - _M_carry + _M_x[__ps]); + _M_carry = 1; + } + _M_x[_M_p] = __xi; + + // Adjust current index to loop around in ring buffer. + if (++_M_p >= long_lag) + _M_p = 0; + + return __xi; + } + + + template + constexpr size_t + discard_block_engine<_RandomNumberEngine, __p, __r>::block_size; + + template + constexpr size_t + discard_block_engine<_RandomNumberEngine, __p, __r>::used_block; + + template + typename discard_block_engine<_RandomNumberEngine, + __p, __r>::result_type + discard_block_engine<_RandomNumberEngine, __p, __r>:: + operator()() + { + if (_M_n >= used_block) + { + _M_b.discard(block_size - _M_n); + _M_n = 0; + } + ++_M_n; + return _M_b(); + } + + + template + typename independent_bits_engine<_RandomNumberEngine, __w, _UIntType>:: + result_type + independent_bits_engine<_RandomNumberEngine, __w, _UIntType>:: + operator()() + { + typedef typename _RandomNumberEngine::result_type _Eresult_type; + const _Eresult_type __r + = (_M_b.max() - _M_b.min() < std::numeric_limits<_Eresult_type>::max() + ? _M_b.max() - _M_b.min() + 1 : 0); + const unsigned __edig = std::numeric_limits<_Eresult_type>::digits; + const unsigned __m = __r ? std::__lg(__r) : __edig; + + typedef typename std::common_type<_Eresult_type, result_type>::type + __ctype; + const unsigned __cdig = std::numeric_limits<__ctype>::digits; + + unsigned __n, __n0; + __ctype __s0, __s1, __y0, __y1; + + for (size_t __i = 0; __i < 2; ++__i) + { + __n = (__w + __m - 1) / __m + __i; + __n0 = __n - __w % __n; + const unsigned __w0 = __w / __n; // __w0 <= __m + + __s0 = 0; + __s1 = 0; + if (__w0 < __cdig) + { + __s0 = __ctype(1) << __w0; + __s1 = __s0 << 1; + } + + __y0 = 0; + __y1 = 0; + if (__r) + { + __y0 = __s0 * (__r / __s0); + if (__s1) + __y1 = __s1 * (__r / __s1); + + if (__r - __y0 <= __y0 / __n) + break; + } + else + break; + } + + result_type __sum = 0; + for (size_t __k = 0; __k < __n0; ++__k) + { + __ctype __u; + do + __u = _M_b() - _M_b.min(); + while (__y0 && __u >= __y0); + __sum = __s0 * __sum + (__s0 ? __u % __s0 : __u); + } + for (size_t __k = __n0; __k < __n; ++__k) + { + __ctype __u; + do + __u = _M_b() - _M_b.min(); + while (__y1 && __u >= __y1); + __sum = __s1 * __sum + (__s1 ? __u % __s1 : __u); + } + return __sum; + } + + + template + constexpr size_t + shuffle_order_engine<_RandomNumberEngine, __k>::table_size; + + template + typename shuffle_order_engine<_RandomNumberEngine, __k>::result_type + shuffle_order_engine<_RandomNumberEngine, __k>:: + operator()() + { + size_t __j = __k * ((_M_y - _M_b.min()) + / (_M_b.max() - _M_b.min() + 1.0L)); + _M_y = _M_v[__j]; + _M_v[__j] = _M_b(); + + return _M_y; + } + + + template + template + void + uniform_real_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + auto __range = __p.b() - __p.a(); + while (__f != __t) + *__f++ = __aurng() * __range + __p.a(); + } + + + template + void + std::bernoulli_distribution:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + auto __limit = __p.p() * (__aurng.max() - __aurng.min()); + + while (__f != __t) + *__f++ = (__aurng() - __aurng.min()) < __limit; + } + + + template + template + typename geometric_distribution<_IntType>::result_type + geometric_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + // About the epsilon thing see this thread: + // http://gcc.gnu.org/ml/gcc-patches/2006-10/msg00971.html + const double __naf = + (1 - std::numeric_limits::epsilon()) / 2; + // The largest _RealType convertible to _IntType. + const double __thr = + std::numeric_limits<_IntType>::max() + __naf; + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + double __cand; + do + __cand = std::floor(std::log(1.0 - __aurng()) / __param._M_log_1_p); + while (__cand >= __thr); + + return result_type(__cand + __naf); + } + + template + template + void + geometric_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + // About the epsilon thing see this thread: + // http://gcc.gnu.org/ml/gcc-patches/2006-10/msg00971.html + const double __naf = + (1 - std::numeric_limits::epsilon()) / 2; + // The largest _RealType convertible to _IntType. + const double __thr = + std::numeric_limits<_IntType>::max() + __naf; + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + while (__f != __t) + { + double __cand; + do + __cand = std::floor(std::log(1.0 - __aurng()) + / __param._M_log_1_p); + while (__cand >= __thr); + + *__f++ = __cand + __naf; + } + } + + + // This is Leger's algorithm, also in Devroye, Ch. X, Example 1.5. + template + template + typename negative_binomial_distribution<_IntType>::result_type + negative_binomial_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng) + { + const double __y = _M_gd(__urng); + + // XXX Is the constructor too slow? + std::poisson_distribution __poisson(__y); + return __poisson(__urng); + } + + template + template + typename negative_binomial_distribution<_IntType>::result_type + negative_binomial_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + typedef typename std::gamma_distribution::param_type + param_type; + + const double __y = + _M_gd(__urng, param_type(__p.k(), (1.0 - __p.p()) / __p.p())); + + std::poisson_distribution __poisson(__y); + return __poisson(__urng); + } + + template + template + void + negative_binomial_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + while (__f != __t) + { + const double __y = _M_gd(__urng); + + // XXX Is the constructor too slow? + std::poisson_distribution __poisson(__y); + *__f++ = __poisson(__urng); + } + } + + template + template + void + negative_binomial_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + typename std::gamma_distribution::param_type + __p2(__p.k(), (1.0 - __p.p()) / __p.p()); + + while (__f != __t) + { + const double __y = _M_gd(__urng, __p2); + + std::poisson_distribution __poisson(__y); + *__f++ = __poisson(__urng); + } + } + + + template + void + poisson_distribution<_IntType>::param_type:: + _M_initialize() + { +#if _GLIBCXX_USE_C99_MATH_TR1 + if (_M_mean >= 12) + { + const double __m = std::floor(_M_mean); + _M_lm_thr = std::log(_M_mean); + _M_lfm = std::lgamma(__m + 1); + _M_sm = std::sqrt(__m); + + const double __pi_4 = 0.7853981633974483096156608458198757L; + const double __dx = std::sqrt(2 * __m * std::log(32 * __m + / __pi_4)); + _M_d = std::round(std::max(6.0, std::min(__m, __dx))); + const double __cx = 2 * __m + _M_d; + _M_scx = std::sqrt(__cx / 2); + _M_1cx = 1 / __cx; + + _M_c2b = std::sqrt(__pi_4 * __cx) * std::exp(_M_1cx); + _M_cb = 2 * __cx * std::exp(-_M_d * _M_1cx * (1 + _M_d / 2)) + / _M_d; + } + else +#endif + _M_lm_thr = std::exp(-_M_mean); + } + + /** + * A rejection algorithm when mean >= 12 and a simple method based + * upon the multiplication of uniform random variates otherwise. + * NB: The former is available only if _GLIBCXX_USE_C99_MATH_TR1 + * is defined. + * + * Reference: + * Devroye, L. Non-Uniform Random Variates Generation. Springer-Verlag, + * New York, 1986, Ch. X, Sects. 3.3 & 3.4 (+ Errata!). + */ + template + template + typename poisson_distribution<_IntType>::result_type + poisson_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); +#if _GLIBCXX_USE_C99_MATH_TR1 + if (__param.mean() >= 12) + { + double __x; + + // See comments above... + const double __naf = + (1 - std::numeric_limits::epsilon()) / 2; + const double __thr = + std::numeric_limits<_IntType>::max() + __naf; + + const double __m = std::floor(__param.mean()); + // sqrt(pi / 2) + const double __spi_2 = 1.2533141373155002512078826424055226L; + const double __c1 = __param._M_sm * __spi_2; + const double __c2 = __param._M_c2b + __c1; + const double __c3 = __c2 + 1; + const double __c4 = __c3 + 1; + // 1 / 78 + const double __178 = 0.0128205128205128205128205128205128L; + // e^(1 / 78) + const double __e178 = 1.0129030479320018583185514777512983L; + const double __c5 = __c4 + __e178; + const double __c = __param._M_cb + __c5; + const double __2cx = 2 * (2 * __m + __param._M_d); + + bool __reject = true; + do + { + const double __u = __c * __aurng(); + const double __e = -std::log(1.0 - __aurng()); + + double __w = 0.0; + + if (__u <= __c1) + { + const double __n = _M_nd(__urng); + const double __y = -std::abs(__n) * __param._M_sm - 1; + __x = std::floor(__y); + __w = -__n * __n / 2; + if (__x < -__m) + continue; + } + else if (__u <= __c2) + { + const double __n = _M_nd(__urng); + const double __y = 1 + std::abs(__n) * __param._M_scx; + __x = std::ceil(__y); + __w = __y * (2 - __y) * __param._M_1cx; + if (__x > __param._M_d) + continue; + } + else if (__u <= __c3) + // NB: This case not in the book, nor in the Errata, + // but should be ok... + __x = -1; + else if (__u <= __c4) + __x = 0; + else if (__u <= __c5) + { + __x = 1; + // Only in the Errata, see libstdc++/83237. + __w = __178; + } + else + { + const double __v = -std::log(1.0 - __aurng()); + const double __y = __param._M_d + + __v * __2cx / __param._M_d; + __x = std::ceil(__y); + __w = -__param._M_d * __param._M_1cx * (1 + __y / 2); + } + + __reject = (__w - __e - __x * __param._M_lm_thr + > __param._M_lfm - std::lgamma(__x + __m + 1)); + + __reject |= __x + __m >= __thr; + + } while (__reject); + + return result_type(__x + __m + __naf); + } + else +#endif + { + _IntType __x = 0; + double __prod = 1.0; + + do + { + __prod *= __aurng(); + __x += 1; + } + while (__prod > __param._M_lm_thr); + + return __x - 1; + } + } + + template + template + void + poisson_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + // We could duplicate everything from operator()... + while (__f != __t) + *__f++ = this->operator()(__urng, __param); + } + + + template + void + binomial_distribution<_IntType>::param_type:: + _M_initialize() + { + const double __p12 = _M_p <= 0.5 ? _M_p : 1.0 - _M_p; + + _M_easy = true; + +#if _GLIBCXX_USE_C99_MATH_TR1 + if (_M_t * __p12 >= 8) + { + _M_easy = false; + const double __np = std::floor(_M_t * __p12); + const double __pa = __np / _M_t; + const double __1p = 1 - __pa; + + const double __pi_4 = 0.7853981633974483096156608458198757L; + const double __d1x = + std::sqrt(__np * __1p * std::log(32 * __np + / (81 * __pi_4 * __1p))); + _M_d1 = std::round(std::max(1.0, __d1x)); + const double __d2x = + std::sqrt(__np * __1p * std::log(32 * _M_t * __1p + / (__pi_4 * __pa))); + _M_d2 = std::round(std::max(1.0, __d2x)); + + // sqrt(pi / 2) + const double __spi_2 = 1.2533141373155002512078826424055226L; + _M_s1 = std::sqrt(__np * __1p) * (1 + _M_d1 / (4 * __np)); + _M_s2 = std::sqrt(__np * __1p) * (1 + _M_d2 / (4 * _M_t * __1p)); + _M_c = 2 * _M_d1 / __np; + _M_a1 = std::exp(_M_c) * _M_s1 * __spi_2; + const double __a12 = _M_a1 + _M_s2 * __spi_2; + const double __s1s = _M_s1 * _M_s1; + _M_a123 = __a12 + (std::exp(_M_d1 / (_M_t * __1p)) + * 2 * __s1s / _M_d1 + * std::exp(-_M_d1 * _M_d1 / (2 * __s1s))); + const double __s2s = _M_s2 * _M_s2; + _M_s = (_M_a123 + 2 * __s2s / _M_d2 + * std::exp(-_M_d2 * _M_d2 / (2 * __s2s))); + _M_lf = (std::lgamma(__np + 1) + + std::lgamma(_M_t - __np + 1)); + _M_lp1p = std::log(__pa / __1p); + + _M_q = -std::log(1 - (__p12 - __pa) / __1p); + } + else +#endif + _M_q = -std::log(1 - __p12); + } + + template + template + typename binomial_distribution<_IntType>::result_type + binomial_distribution<_IntType>:: + _M_waiting(_UniformRandomNumberGenerator& __urng, + _IntType __t, double __q) + { + _IntType __x = 0; + double __sum = 0.0; + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + do + { + if (__t == __x) + return __x; + const double __e = -std::log(1.0 - __aurng()); + __sum += __e / (__t - __x); + __x += 1; + } + while (__sum <= __q); + + return __x - 1; + } + + /** + * A rejection algorithm when t * p >= 8 and a simple waiting time + * method - the second in the referenced book - otherwise. + * NB: The former is available only if _GLIBCXX_USE_C99_MATH_TR1 + * is defined. + * + * Reference: + * Devroye, L. Non-Uniform Random Variates Generation. Springer-Verlag, + * New York, 1986, Ch. X, Sect. 4 (+ Errata!). + */ + template + template + typename binomial_distribution<_IntType>::result_type + binomial_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + result_type __ret; + const _IntType __t = __param.t(); + const double __p = __param.p(); + const double __p12 = __p <= 0.5 ? __p : 1.0 - __p; + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + +#if _GLIBCXX_USE_C99_MATH_TR1 + if (!__param._M_easy) + { + double __x; + + // See comments above... + const double __naf = + (1 - std::numeric_limits::epsilon()) / 2; + const double __thr = + std::numeric_limits<_IntType>::max() + __naf; + + const double __np = std::floor(__t * __p12); + + // sqrt(pi / 2) + const double __spi_2 = 1.2533141373155002512078826424055226L; + const double __a1 = __param._M_a1; + const double __a12 = __a1 + __param._M_s2 * __spi_2; + const double __a123 = __param._M_a123; + const double __s1s = __param._M_s1 * __param._M_s1; + const double __s2s = __param._M_s2 * __param._M_s2; + + bool __reject; + do + { + const double __u = __param._M_s * __aurng(); + + double __v; + + if (__u <= __a1) + { + const double __n = _M_nd(__urng); + const double __y = __param._M_s1 * std::abs(__n); + __reject = __y >= __param._M_d1; + if (!__reject) + { + const double __e = -std::log(1.0 - __aurng()); + __x = std::floor(__y); + __v = -__e - __n * __n / 2 + __param._M_c; + } + } + else if (__u <= __a12) + { + const double __n = _M_nd(__urng); + const double __y = __param._M_s2 * std::abs(__n); + __reject = __y >= __param._M_d2; + if (!__reject) + { + const double __e = -std::log(1.0 - __aurng()); + __x = std::floor(-__y); + __v = -__e - __n * __n / 2; + } + } + else if (__u <= __a123) + { + const double __e1 = -std::log(1.0 - __aurng()); + const double __e2 = -std::log(1.0 - __aurng()); + + const double __y = __param._M_d1 + + 2 * __s1s * __e1 / __param._M_d1; + __x = std::floor(__y); + __v = (-__e2 + __param._M_d1 * (1 / (__t - __np) + -__y / (2 * __s1s))); + __reject = false; + } + else + { + const double __e1 = -std::log(1.0 - __aurng()); + const double __e2 = -std::log(1.0 - __aurng()); + + const double __y = __param._M_d2 + + 2 * __s2s * __e1 / __param._M_d2; + __x = std::floor(-__y); + __v = -__e2 - __param._M_d2 * __y / (2 * __s2s); + __reject = false; + } + + __reject = __reject || __x < -__np || __x > __t - __np; + if (!__reject) + { + const double __lfx = + std::lgamma(__np + __x + 1) + + std::lgamma(__t - (__np + __x) + 1); + __reject = __v > __param._M_lf - __lfx + + __x * __param._M_lp1p; + } + + __reject |= __x + __np >= __thr; + } + while (__reject); + + __x += __np + __naf; + + const _IntType __z = _M_waiting(__urng, __t - _IntType(__x), + __param._M_q); + __ret = _IntType(__x) + __z; + } + else +#endif + __ret = _M_waiting(__urng, __t, __param._M_q); + + if (__p12 != __p) + __ret = __t - __ret; + return __ret; + } + + template + template + void + binomial_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + // We could duplicate everything from operator()... + while (__f != __t) + *__f++ = this->operator()(__urng, __param); + } + + + template + template + void + std::exponential_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + while (__f != __t) + *__f++ = -std::log(result_type(1) - __aurng()) / __p.lambda(); + } + + + /** + * Polar method due to Marsaglia. + * + * Devroye, L. Non-Uniform Random Variates Generation. Springer-Verlag, + * New York, 1986, Ch. V, Sect. 4.4. + */ + template + template + typename normal_distribution<_RealType>::result_type + normal_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + result_type __ret; + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + + if (_M_saved_available) + { + _M_saved_available = false; + __ret = _M_saved; + } + else + { + result_type __x, __y, __r2; + do + { + __x = result_type(2.0) * __aurng() - 1.0; + __y = result_type(2.0) * __aurng() - 1.0; + __r2 = __x * __x + __y * __y; + } + while (__r2 > 1.0 || __r2 == 0.0); + + const result_type __mult = std::sqrt(-2 * std::log(__r2) / __r2); + _M_saved = __x * __mult; + _M_saved_available = true; + __ret = __y * __mult; + } + + __ret = __ret * __param.stddev() + __param.mean(); + return __ret; + } + + template + template + void + normal_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + + if (__f == __t) + return; + + if (_M_saved_available) + { + _M_saved_available = false; + *__f++ = _M_saved * __param.stddev() + __param.mean(); + + if (__f == __t) + return; + } + + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + + while (__f + 1 < __t) + { + result_type __x, __y, __r2; + do + { + __x = result_type(2.0) * __aurng() - 1.0; + __y = result_type(2.0) * __aurng() - 1.0; + __r2 = __x * __x + __y * __y; + } + while (__r2 > 1.0 || __r2 == 0.0); + + const result_type __mult = std::sqrt(-2 * std::log(__r2) / __r2); + *__f++ = __y * __mult * __param.stddev() + __param.mean(); + *__f++ = __x * __mult * __param.stddev() + __param.mean(); + } + + if (__f != __t) + { + result_type __x, __y, __r2; + do + { + __x = result_type(2.0) * __aurng() - 1.0; + __y = result_type(2.0) * __aurng() - 1.0; + __r2 = __x * __x + __y * __y; + } + while (__r2 > 1.0 || __r2 == 0.0); + + const result_type __mult = std::sqrt(-2 * std::log(__r2) / __r2); + _M_saved = __x * __mult; + _M_saved_available = true; + *__f = __y * __mult * __param.stddev() + __param.mean(); + } + } + + template + bool + operator==(const std::normal_distribution<_RealType>& __d1, + const std::normal_distribution<_RealType>& __d2) + { + if (__d1._M_param == __d2._M_param + && __d1._M_saved_available == __d2._M_saved_available) + { + if (__d1._M_saved_available + && __d1._M_saved == __d2._M_saved) + return true; + else if(!__d1._M_saved_available) + return true; + else + return false; + } + else + return false; + } + + + template + template + void + lognormal_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + while (__f != __t) + *__f++ = std::exp(__p.s() * _M_nd(__urng) + __p.m()); + } + + template + template + void + std::chi_squared_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + while (__f != __t) + *__f++ = 2 * _M_gd(__urng); + } + + template + template + void + std::chi_squared_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const typename + std::gamma_distribution::param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + while (__f != __t) + *__f++ = 2 * _M_gd(__urng, __p); + } + + + template + template + typename cauchy_distribution<_RealType>::result_type + cauchy_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + _RealType __u; + do + __u = __aurng(); + while (__u == 0.5); + + const _RealType __pi = 3.1415926535897932384626433832795029L; + return __p.a() + __p.b() * std::tan(__pi * __u); + } + + template + template + void + cauchy_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + const _RealType __pi = 3.1415926535897932384626433832795029L; + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + while (__f != __t) + { + _RealType __u; + do + __u = __aurng(); + while (__u == 0.5); + + *__f++ = __p.a() + __p.b() * std::tan(__pi * __u); + } + } + + + template + template + void + std::fisher_f_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + while (__f != __t) + *__f++ = ((_M_gd_x(__urng) * n()) / (_M_gd_y(__urng) * m())); + } + + template + template + void + std::fisher_f_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + typedef typename std::gamma_distribution::param_type + param_type; + param_type __p1(__p.m() / 2); + param_type __p2(__p.n() / 2); + while (__f != __t) + *__f++ = ((_M_gd_x(__urng, __p1) * n()) + / (_M_gd_y(__urng, __p2) * m())); + } + + + template + template + void + std::student_t_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + while (__f != __t) + *__f++ = _M_nd(__urng) * std::sqrt(n() / _M_gd(__urng)); + } + + template + template + void + std::student_t_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + typename std::gamma_distribution::param_type + __p2(__p.n() / 2, 2); + while (__f != __t) + *__f++ = _M_nd(__urng) * std::sqrt(__p.n() / _M_gd(__urng, __p2)); + } + + + template + void + gamma_distribution<_RealType>::param_type:: + _M_initialize() + { + _M_malpha = _M_alpha < 1.0 ? _M_alpha + _RealType(1.0) : _M_alpha; + + const _RealType __a1 = _M_malpha - _RealType(1.0) / _RealType(3.0); + _M_a2 = _RealType(1.0) / std::sqrt(_RealType(9.0) * __a1); + } + + /** + * Marsaglia, G. and Tsang, W. W. + * "A Simple Method for Generating Gamma Variables" + * ACM Transactions on Mathematical Software, 26, 3, 363-372, 2000. + */ + template + template + typename gamma_distribution<_RealType>::result_type + gamma_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + + result_type __u, __v, __n; + const result_type __a1 = (__param._M_malpha + - _RealType(1.0) / _RealType(3.0)); + + do + { + do + { + __n = _M_nd(__urng); + __v = result_type(1.0) + __param._M_a2 * __n; + } + while (__v <= 0.0); + + __v = __v * __v * __v; + __u = __aurng(); + } + while (__u > result_type(1.0) - 0.0331 * __n * __n * __n * __n + && (std::log(__u) > (0.5 * __n * __n + __a1 + * (1.0 - __v + std::log(__v))))); + + if (__param.alpha() == __param._M_malpha) + return __a1 * __v * __param.beta(); + else + { + do + __u = __aurng(); + while (__u == 0.0); + + return (std::pow(__u, result_type(1.0) / __param.alpha()) + * __a1 * __v * __param.beta()); + } + } + + template + template + void + gamma_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + + result_type __u, __v, __n; + const result_type __a1 = (__param._M_malpha + - _RealType(1.0) / _RealType(3.0)); + + if (__param.alpha() == __param._M_malpha) + while (__f != __t) + { + do + { + do + { + __n = _M_nd(__urng); + __v = result_type(1.0) + __param._M_a2 * __n; + } + while (__v <= 0.0); + + __v = __v * __v * __v; + __u = __aurng(); + } + while (__u > result_type(1.0) - 0.0331 * __n * __n * __n * __n + && (std::log(__u) > (0.5 * __n * __n + __a1 + * (1.0 - __v + std::log(__v))))); + + *__f++ = __a1 * __v * __param.beta(); + } + else + while (__f != __t) + { + do + { + do + { + __n = _M_nd(__urng); + __v = result_type(1.0) + __param._M_a2 * __n; + } + while (__v <= 0.0); + + __v = __v * __v * __v; + __u = __aurng(); + } + while (__u > result_type(1.0) - 0.0331 * __n * __n * __n * __n + && (std::log(__u) > (0.5 * __n * __n + __a1 + * (1.0 - __v + std::log(__v))))); + + do + __u = __aurng(); + while (__u == 0.0); + + *__f++ = (std::pow(__u, result_type(1.0) / __param.alpha()) + * __a1 * __v * __param.beta()); + } + } + + + template + template + typename weibull_distribution<_RealType>::result_type + weibull_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + return __p.b() * std::pow(-std::log(result_type(1) - __aurng()), + result_type(1) / __p.a()); + } + + template + template + void + weibull_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + auto __inv_a = result_type(1) / __p.a(); + + while (__f != __t) + *__f++ = __p.b() * std::pow(-std::log(result_type(1) - __aurng()), + __inv_a); + } + + + template + template + typename extreme_value_distribution<_RealType>::result_type + extreme_value_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + return __p.a() - __p.b() * std::log(-std::log(result_type(1) + - __aurng())); + } + + template + template + void + extreme_value_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, result_type> + __aurng(__urng); + + while (__f != __t) + *__f++ = __p.a() - __p.b() * std::log(-std::log(result_type(1) + - __aurng())); + } + + + template + void + discrete_distribution<_IntType>::param_type:: + _M_initialize() + { + if (_M_prob.size() < 2) + { + _M_prob.clear(); + return; + } + + const double __sum = std::accumulate(_M_prob.begin(), + _M_prob.end(), 0.0); + // Now normalize the probabilites. + __detail::__normalize(_M_prob.begin(), _M_prob.end(), _M_prob.begin(), + __sum); + // Accumulate partial sums. + _M_cp.reserve(_M_prob.size()); + std::partial_sum(_M_prob.begin(), _M_prob.end(), + std::back_inserter(_M_cp)); + // Make sure the last cumulative probability is one. + _M_cp[_M_cp.size() - 1] = 1.0; + } + + template + template + discrete_distribution<_IntType>::param_type:: + param_type(size_t __nw, double __xmin, double __xmax, _Func __fw) + : _M_prob(), _M_cp() + { + const size_t __n = __nw == 0 ? 1 : __nw; + const double __delta = (__xmax - __xmin) / __n; + + _M_prob.reserve(__n); + for (size_t __k = 0; __k < __nw; ++__k) + _M_prob.push_back(__fw(__xmin + __k * __delta + 0.5 * __delta)); + + _M_initialize(); + } + + template + template + typename discrete_distribution<_IntType>::result_type + discrete_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + if (__param._M_cp.empty()) + return result_type(0); + + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + const double __p = __aurng(); + auto __pos = std::lower_bound(__param._M_cp.begin(), + __param._M_cp.end(), __p); + + return __pos - __param._M_cp.begin(); + } + + template + template + void + discrete_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + + if (__param._M_cp.empty()) + { + while (__f != __t) + *__f++ = result_type(0); + return; + } + + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + while (__f != __t) + { + const double __p = __aurng(); + auto __pos = std::lower_bound(__param._M_cp.begin(), + __param._M_cp.end(), __p); + + *__f++ = __pos - __param._M_cp.begin(); + } + } + + + template + void + piecewise_constant_distribution<_RealType>::param_type:: + _M_initialize() + { + if (_M_int.size() < 2 + || (_M_int.size() == 2 + && _M_int[0] == _RealType(0) + && _M_int[1] == _RealType(1))) + { + _M_int.clear(); + _M_den.clear(); + return; + } + + const double __sum = std::accumulate(_M_den.begin(), + _M_den.end(), 0.0); + + __detail::__normalize(_M_den.begin(), _M_den.end(), _M_den.begin(), + __sum); + + _M_cp.reserve(_M_den.size()); + std::partial_sum(_M_den.begin(), _M_den.end(), + std::back_inserter(_M_cp)); + + // Make sure the last cumulative probability is one. + _M_cp[_M_cp.size() - 1] = 1.0; + + for (size_t __k = 0; __k < _M_den.size(); ++__k) + _M_den[__k] /= _M_int[__k + 1] - _M_int[__k]; + } + + template + template + piecewise_constant_distribution<_RealType>::param_type:: + param_type(_InputIteratorB __bbegin, + _InputIteratorB __bend, + _InputIteratorW __wbegin) + : _M_int(), _M_den(), _M_cp() + { + if (__bbegin != __bend) + { + for (;;) + { + _M_int.push_back(*__bbegin); + ++__bbegin; + if (__bbegin == __bend) + break; + + _M_den.push_back(*__wbegin); + ++__wbegin; + } + } + + _M_initialize(); + } + + template + template + piecewise_constant_distribution<_RealType>::param_type:: + param_type(initializer_list<_RealType> __bl, _Func __fw) + : _M_int(), _M_den(), _M_cp() + { + _M_int.reserve(__bl.size()); + for (auto __biter = __bl.begin(); __biter != __bl.end(); ++__biter) + _M_int.push_back(*__biter); + + _M_den.reserve(_M_int.size() - 1); + for (size_t __k = 0; __k < _M_int.size() - 1; ++__k) + _M_den.push_back(__fw(0.5 * (_M_int[__k + 1] + _M_int[__k]))); + + _M_initialize(); + } + + template + template + piecewise_constant_distribution<_RealType>::param_type:: + param_type(size_t __nw, _RealType __xmin, _RealType __xmax, _Func __fw) + : _M_int(), _M_den(), _M_cp() + { + const size_t __n = __nw == 0 ? 1 : __nw; + const _RealType __delta = (__xmax - __xmin) / __n; + + _M_int.reserve(__n + 1); + for (size_t __k = 0; __k <= __nw; ++__k) + _M_int.push_back(__xmin + __k * __delta); + + _M_den.reserve(__n); + for (size_t __k = 0; __k < __nw; ++__k) + _M_den.push_back(__fw(_M_int[__k] + 0.5 * __delta)); + + _M_initialize(); + } + + template + template + typename piecewise_constant_distribution<_RealType>::result_type + piecewise_constant_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + const double __p = __aurng(); + if (__param._M_cp.empty()) + return __p; + + auto __pos = std::lower_bound(__param._M_cp.begin(), + __param._M_cp.end(), __p); + const size_t __i = __pos - __param._M_cp.begin(); + + const double __pref = __i > 0 ? __param._M_cp[__i - 1] : 0.0; + + return __param._M_int[__i] + (__p - __pref) / __param._M_den[__i]; + } + + template + template + void + piecewise_constant_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + if (__param._M_cp.empty()) + { + while (__f != __t) + *__f++ = __aurng(); + return; + } + + while (__f != __t) + { + const double __p = __aurng(); + + auto __pos = std::lower_bound(__param._M_cp.begin(), + __param._M_cp.end(), __p); + const size_t __i = __pos - __param._M_cp.begin(); + + const double __pref = __i > 0 ? __param._M_cp[__i - 1] : 0.0; + + *__f++ = (__param._M_int[__i] + + (__p - __pref) / __param._M_den[__i]); + } + } + + + template + void + piecewise_linear_distribution<_RealType>::param_type:: + _M_initialize() + { + if (_M_int.size() < 2 + || (_M_int.size() == 2 + && _M_int[0] == _RealType(0) + && _M_int[1] == _RealType(1) + && _M_den[0] == _M_den[1])) + { + _M_int.clear(); + _M_den.clear(); + return; + } + + double __sum = 0.0; + _M_cp.reserve(_M_int.size() - 1); + _M_m.reserve(_M_int.size() - 1); + for (size_t __k = 0; __k < _M_int.size() - 1; ++__k) + { + const _RealType __delta = _M_int[__k + 1] - _M_int[__k]; + __sum += 0.5 * (_M_den[__k + 1] + _M_den[__k]) * __delta; + _M_cp.push_back(__sum); + _M_m.push_back((_M_den[__k + 1] - _M_den[__k]) / __delta); + } + + // Now normalize the densities... + __detail::__normalize(_M_den.begin(), _M_den.end(), _M_den.begin(), + __sum); + // ... and partial sums... + __detail::__normalize(_M_cp.begin(), _M_cp.end(), _M_cp.begin(), __sum); + // ... and slopes. + __detail::__normalize(_M_m.begin(), _M_m.end(), _M_m.begin(), __sum); + + // Make sure the last cumulative probablility is one. + _M_cp[_M_cp.size() - 1] = 1.0; + } + + template + template + piecewise_linear_distribution<_RealType>::param_type:: + param_type(_InputIteratorB __bbegin, + _InputIteratorB __bend, + _InputIteratorW __wbegin) + : _M_int(), _M_den(), _M_cp(), _M_m() + { + for (; __bbegin != __bend; ++__bbegin, ++__wbegin) + { + _M_int.push_back(*__bbegin); + _M_den.push_back(*__wbegin); + } + + _M_initialize(); + } + + template + template + piecewise_linear_distribution<_RealType>::param_type:: + param_type(initializer_list<_RealType> __bl, _Func __fw) + : _M_int(), _M_den(), _M_cp(), _M_m() + { + _M_int.reserve(__bl.size()); + _M_den.reserve(__bl.size()); + for (auto __biter = __bl.begin(); __biter != __bl.end(); ++__biter) + { + _M_int.push_back(*__biter); + _M_den.push_back(__fw(*__biter)); + } + + _M_initialize(); + } + + template + template + piecewise_linear_distribution<_RealType>::param_type:: + param_type(size_t __nw, _RealType __xmin, _RealType __xmax, _Func __fw) + : _M_int(), _M_den(), _M_cp(), _M_m() + { + const size_t __n = __nw == 0 ? 1 : __nw; + const _RealType __delta = (__xmax - __xmin) / __n; + + _M_int.reserve(__n + 1); + _M_den.reserve(__n + 1); + for (size_t __k = 0; __k <= __nw; ++__k) + { + _M_int.push_back(__xmin + __k * __delta); + _M_den.push_back(__fw(_M_int[__k] + __delta)); + } + + _M_initialize(); + } + + template + template + typename piecewise_linear_distribution<_RealType>::result_type + piecewise_linear_distribution<_RealType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __detail::_Adaptor<_UniformRandomNumberGenerator, double> + __aurng(__urng); + + const double __p = __aurng(); + if (__param._M_cp.empty()) + return __p; + + auto __pos = std::lower_bound(__param._M_cp.begin(), + __param._M_cp.end(), __p); + const size_t __i = __pos - __param._M_cp.begin(); + + const double __pref = __i > 0 ? __param._M_cp[__i - 1] : 0.0; + + const double __a = 0.5 * __param._M_m[__i]; + const double __b = __param._M_den[__i]; + const double __cm = __p - __pref; + + _RealType __x = __param._M_int[__i]; + if (__a == 0) + __x += __cm / __b; + else + { + const double __d = __b * __b + 4.0 * __a * __cm; + __x += 0.5 * (std::sqrt(__d) - __b) / __a; + } + + return __x; + } + + template + template + void + piecewise_linear_distribution<_RealType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + // We could duplicate everything from operator()... + while (__f != __t) + *__f++ = this->operator()(__urng, __param); + } + + + template + seed_seq::seed_seq(std::initializer_list<_IntType> __il) + { + for (auto __iter = __il.begin(); __iter != __il.end(); ++__iter) + _M_v.push_back(__detail::__mod::__value>(*__iter)); + } + + template + seed_seq::seed_seq(_InputIterator __begin, _InputIterator __end) + { + for (_InputIterator __iter = __begin; __iter != __end; ++__iter) + _M_v.push_back(__detail::__mod::__value>(*__iter)); + } + + template + void + seed_seq::generate(_RandomAccessIterator __begin, + _RandomAccessIterator __end) + { + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _Type; + + if (__begin == __end) + return; + + std::fill(__begin, __end, _Type(0x8b8b8b8bu)); + + const size_t __n = __end - __begin; + const size_t __s = _M_v.size(); + const size_t __t = (__n >= 623) ? 11 + : (__n >= 68) ? 7 + : (__n >= 39) ? 5 + : (__n >= 7) ? 3 + : (__n - 1) / 2; + const size_t __p = (__n - __t) / 2; + const size_t __q = __p + __t; + const size_t __m = std::max(size_t(__s + 1), __n); + + for (size_t __k = 0; __k < __m; ++__k) + { + _Type __arg = (__begin[__k % __n] + ^ __begin[(__k + __p) % __n] + ^ __begin[(__k - 1) % __n]); + _Type __r1 = __arg ^ (__arg >> 27); + __r1 = __detail::__mod<_Type, + __detail::_Shift<_Type, 32>::__value>(1664525u * __r1); + _Type __r2 = __r1; + if (__k == 0) + __r2 += __s; + else if (__k <= __s) + __r2 += __k % __n + _M_v[__k - 1]; + else + __r2 += __k % __n; + __r2 = __detail::__mod<_Type, + __detail::_Shift<_Type, 32>::__value>(__r2); + __begin[(__k + __p) % __n] += __r1; + __begin[(__k + __q) % __n] += __r2; + __begin[__k % __n] = __r2; + } + + for (size_t __k = __m; __k < __m + __n; ++__k) + { + _Type __arg = (__begin[__k % __n] + + __begin[(__k + __p) % __n] + + __begin[(__k - 1) % __n]); + _Type __r3 = __arg ^ (__arg >> 27); + __r3 = __detail::__mod<_Type, + __detail::_Shift<_Type, 32>::__value>(1566083941u * __r3); + _Type __r4 = __r3 - __k % __n; + __r4 = __detail::__mod<_Type, + __detail::_Shift<_Type, 32>::__value>(__r4); + __begin[(__k + __p) % __n] ^= __r3; + __begin[(__k + __q) % __n] ^= __r4; + __begin[__k % __n] = __r4; + } + } + + template + _RealType + generate_canonical(_UniformRandomNumberGenerator& __urng) + { + static_assert(std::is_floating_point<_RealType>::value, + "template argument must be a floating point type"); + + const size_t __b + = std::min(static_cast(std::numeric_limits<_RealType>::digits), + __bits); + const long double __r = static_cast(__urng.max()) + - static_cast(__urng.min()) + 1.0L; + const size_t __log2r = std::log(__r) / std::log(2.0L); + const size_t __m = std::max(1UL, + (__b + __log2r - 1UL) / __log2r); + _RealType __ret; + _RealType __sum = _RealType(0); + _RealType __tmp = _RealType(1); + for (size_t __k = __m; __k != 0; --__k) + { + __sum += _RealType(__urng() - __urng.min()) * __tmp; + __tmp *= __r; + } + __ret = __sum / __tmp; + if (__builtin_expect(__ret >= _RealType(1), 0)) + { +#if _GLIBCXX_USE_C99_MATH_TR1 + __ret = std::nextafter(_RealType(1), _RealType(0)); +#else + __ret = _RealType(1) + - std::numeric_limits<_RealType>::epsilon() / _RealType(2); +#endif + } + return __ret; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/range_access.h b/resources/sources/avr-libstdcpp/include/bits/range_access.h new file mode 100644 index 000000000..3919183c5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/range_access.h @@ -0,0 +1,1148 @@ +// -*- C++ -*- + +// Copyright (C) 2010-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/range_access.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + */ + +#ifndef _GLIBCXX_RANGE_ACCESS_H +#define _GLIBCXX_RANGE_ACCESS_H 1 + +#pragma GCC system_header + +#if __cplusplus >= 201103L +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief Return an iterator pointing to the first element of + * the container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + begin(_Container& __cont) -> decltype(__cont.begin()) + { return __cont.begin(); } + + /** + * @brief Return an iterator pointing to the first element of + * the const container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + begin(const _Container& __cont) -> decltype(__cont.begin()) + { return __cont.begin(); } + + /** + * @brief Return an iterator pointing to one past the last element of + * the container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + end(_Container& __cont) -> decltype(__cont.end()) + { return __cont.end(); } + + /** + * @brief Return an iterator pointing to one past the last element of + * the const container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + end(const _Container& __cont) -> decltype(__cont.end()) + { return __cont.end(); } + + /** + * @brief Return an iterator pointing to the first element of the array. + * @param __arr Array. + */ + template + inline _GLIBCXX14_CONSTEXPR _Tp* + begin(_Tp (&__arr)[_Nm]) + { return __arr; } + + /** + * @brief Return an iterator pointing to one past the last element + * of the array. + * @param __arr Array. + */ + template + inline _GLIBCXX14_CONSTEXPR _Tp* + end(_Tp (&__arr)[_Nm]) + { return __arr + _Nm; } + +#if __cplusplus >= 201402L + + template class valarray; + // These overloads must be declared for cbegin and cend to use them. + template _Tp* begin(valarray<_Tp>&); + template const _Tp* begin(const valarray<_Tp>&); + template _Tp* end(valarray<_Tp>&); + template const _Tp* end(const valarray<_Tp>&); + + /** + * @brief Return an iterator pointing to the first element of + * the const container. + * @param __cont Container. + */ + template + inline constexpr auto + cbegin(const _Container& __cont) noexcept(noexcept(std::begin(__cont))) + -> decltype(std::begin(__cont)) + { return std::begin(__cont); } + + /** + * @brief Return an iterator pointing to one past the last element of + * the const container. + * @param __cont Container. + */ + template + inline constexpr auto + cend(const _Container& __cont) noexcept(noexcept(std::end(__cont))) + -> decltype(std::end(__cont)) + { return std::end(__cont); } + + /** + * @brief Return a reverse iterator pointing to the last element of + * the container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + rbegin(_Container& __cont) -> decltype(__cont.rbegin()) + { return __cont.rbegin(); } + + /** + * @brief Return a reverse iterator pointing to the last element of + * the const container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + rbegin(const _Container& __cont) -> decltype(__cont.rbegin()) + { return __cont.rbegin(); } + + /** + * @brief Return a reverse iterator pointing one past the first element of + * the container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + rend(_Container& __cont) -> decltype(__cont.rend()) + { return __cont.rend(); } + + /** + * @brief Return a reverse iterator pointing one past the first element of + * the const container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + rend(const _Container& __cont) -> decltype(__cont.rend()) + { return __cont.rend(); } + + /** + * @brief Return a reverse iterator pointing to the last element of + * the array. + * @param __arr Array. + */ + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Tp*> + rbegin(_Tp (&__arr)[_Nm]) + { return reverse_iterator<_Tp*>(__arr + _Nm); } + + /** + * @brief Return a reverse iterator pointing one past the first element of + * the array. + * @param __arr Array. + */ + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Tp*> + rend(_Tp (&__arr)[_Nm]) + { return reverse_iterator<_Tp*>(__arr); } + + /** + * @brief Return a reverse iterator pointing to the last element of + * the initializer_list. + * @param __il initializer_list. + */ + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator + rbegin(initializer_list<_Tp> __il) + { return reverse_iterator(__il.end()); } + + /** + * @brief Return a reverse iterator pointing one past the first element of + * the initializer_list. + * @param __il initializer_list. + */ + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator + rend(initializer_list<_Tp> __il) + { return reverse_iterator(__il.begin()); } + + /** + * @brief Return a reverse iterator pointing to the last element of + * the const container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + crbegin(const _Container& __cont) -> decltype(std::rbegin(__cont)) + { return std::rbegin(__cont); } + + /** + * @brief Return a reverse iterator pointing one past the first element of + * the const container. + * @param __cont Container. + */ + template + inline _GLIBCXX17_CONSTEXPR auto + crend(const _Container& __cont) -> decltype(std::rend(__cont)) + { return std::rend(__cont); } + +#endif // C++14 + +#if __cplusplus >= 201703L +#define __cpp_lib_nonmember_container_access 201411 + + /** + * @brief Return the size of a container. + * @param __cont Container. + */ + template + constexpr auto + size(const _Container& __cont) noexcept(noexcept(__cont.size())) + -> decltype(__cont.size()) + { return __cont.size(); } + + /** + * @brief Return the size of an array. + */ + template + constexpr size_t + size(const _Tp (&)[_Nm]) noexcept + { return _Nm; } + + /** + * @brief Return whether a container is empty. + * @param __cont Container. + */ + template + [[nodiscard]] constexpr auto + empty(const _Container& __cont) noexcept(noexcept(__cont.empty())) + -> decltype(__cont.empty()) + { return __cont.empty(); } + + /** + * @brief Return whether an array is empty (always false). + */ + template + [[nodiscard]] constexpr bool + empty(const _Tp (&)[_Nm]) noexcept + { return false; } + + /** + * @brief Return whether an initializer_list is empty. + * @param __il Initializer list. + */ + template + [[nodiscard]] constexpr bool + empty(initializer_list<_Tp> __il) noexcept + { return __il.size() == 0;} + + /** + * @brief Return the data pointer of a container. + * @param __cont Container. + */ + template + constexpr auto + data(_Container& __cont) noexcept(noexcept(__cont.data())) + -> decltype(__cont.data()) + { return __cont.data(); } + + /** + * @brief Return the data pointer of a const container. + * @param __cont Container. + */ + template + constexpr auto + data(const _Container& __cont) noexcept(noexcept(__cont.data())) + -> decltype(__cont.data()) + { return __cont.data(); } + + /** + * @brief Return the data pointer of an array. + * @param __array Array. + */ + template + constexpr _Tp* + data(_Tp (&__array)[_Nm]) noexcept + { return __array; } + + /** + * @brief Return the data pointer of an initializer list. + * @param __il Initializer list. + */ + template + constexpr const _Tp* + data(initializer_list<_Tp> __il) noexcept + { return __il.begin(); } + +#endif // C++17 + +#if __cplusplus > 201703L +#define __cpp_lib_ssize 201902L + template + constexpr auto + ssize(const _Container& __cont) + noexcept(noexcept(__cont.size())) + -> common_type_t> + { + using type = make_signed_t; + return static_cast>(__cont.size()); + } + + template + constexpr ptrdiff_t + ssize(const _Tp (&)[_Num]) noexcept + { return _Num; } + +#ifdef __cpp_lib_concepts +namespace ranges +{ + template + inline constexpr bool disable_sized_range = false; + + template + inline constexpr bool enable_borrowed_range = false; + + template + extern const bool enable_view; + + namespace __detail + { + template + constexpr make_unsigned_t<_Tp> + __to_unsigned_like(_Tp __t) noexcept + { return __t; } + + template> + using __make_unsigned_like_t + = conditional_t<_MaxDiff, __max_size_type, make_unsigned_t<_Tp>>; + + // Part of the constraints of ranges::borrowed_range + template + concept __maybe_borrowed_range + = is_lvalue_reference_v<_Tp> + || enable_borrowed_range>; + + } // namespace __detail + + namespace __cust_access + { + using std::ranges::__detail::__maybe_borrowed_range; + using std::__detail::__class_or_enum; + using std::__detail::__decay_copy; + using std::__detail::__member_begin; + using std::__detail::__adl_begin; + + struct _Begin + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (is_array_v>) + return true; + else if constexpr (__member_begin<_Tp>) + return noexcept(__decay_copy(std::declval<_Tp&>().begin())); + else + return noexcept(__decay_copy(begin(std::declval<_Tp&>()))); + } + + public: + template<__maybe_borrowed_range _Tp> + requires is_array_v> || __member_begin<_Tp> + || __adl_begin<_Tp> + constexpr auto + operator()(_Tp&& __t) const noexcept(_S_noexcept<_Tp>()) + { + if constexpr (is_array_v>) + { + static_assert(is_lvalue_reference_v<_Tp>); + using _Up = remove_all_extents_t>; + static_assert(sizeof(_Up) != 0, "not array of incomplete type"); + return __t + 0; + } + else if constexpr (__member_begin<_Tp>) + return __t.begin(); + else + return begin(__t); + } + }; + + template + concept __member_end = requires(_Tp& __t) + { + { __decay_copy(__t.end()) } + -> sentinel_for(__t)))>; + }; + + void end(auto&) = delete; + void end(const auto&) = delete; + + template + concept __adl_end = __class_or_enum> + && requires(_Tp& __t) + { + { __decay_copy(end(__t)) } + -> sentinel_for(__t)))>; + }; + + struct _End + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (is_bounded_array_v>) + return true; + else if constexpr (__member_end<_Tp>) + return noexcept(__decay_copy(std::declval<_Tp&>().end())); + else + return noexcept(__decay_copy(end(std::declval<_Tp&>()))); + } + + public: + template<__maybe_borrowed_range _Tp> + requires is_bounded_array_v> || __member_end<_Tp> + || __adl_end<_Tp> + constexpr auto + operator()(_Tp&& __t) const noexcept(_S_noexcept<_Tp>()) + { + if constexpr (is_bounded_array_v>) + { + static_assert(is_lvalue_reference_v<_Tp>); + return __t + extent_v>; + } + else if constexpr (__member_end<_Tp>) + return __t.end(); + else + return end(__t); + } + }; + + template + constexpr decltype(auto) + __as_const(_Tp&& __t) noexcept + { + if constexpr (is_lvalue_reference_v<_Tp>) + return static_cast&>(__t); + else + return static_cast(__t); + } + + struct _CBegin + { + template + constexpr auto + operator()(_Tp&& __e) const + noexcept(noexcept(_Begin{}(__cust_access::__as_const((_Tp&&)__e)))) + requires requires { _Begin{}(__cust_access::__as_const((_Tp&&)__e)); } + { + return _Begin{}(__cust_access::__as_const(std::forward<_Tp>(__e))); + } + }; + + struct _CEnd + { + template + constexpr auto + operator()(_Tp&& __e) const + noexcept(noexcept(_End{}(__cust_access::__as_const((_Tp&&)__e)))) + requires requires { _End{}(__cust_access::__as_const((_Tp&&)__e)); } + { + return _End{}(__cust_access::__as_const(std::forward<_Tp>(__e))); + } + }; + + template + concept __member_rbegin = requires(_Tp& __t) + { + { __decay_copy(__t.rbegin()) } -> input_or_output_iterator; + }; + + void rbegin(auto&) = delete; + void rbegin(const auto&) = delete; + + template + concept __adl_rbegin = __class_or_enum> + && requires(_Tp& __t) + { + { __decay_copy(rbegin(__t)) } -> input_or_output_iterator; + }; + + template + concept __reversable = requires(_Tp& __t) + { + { _Begin{}(__t) } -> bidirectional_iterator; + { _End{}(__t) } -> same_as; + }; + + struct _RBegin + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (__member_rbegin<_Tp>) + return noexcept(__decay_copy(std::declval<_Tp&>().rbegin())); + else if constexpr (__adl_rbegin<_Tp>) + return noexcept(__decay_copy(rbegin(std::declval<_Tp&>()))); + else + { + if constexpr (noexcept(_End{}(std::declval<_Tp&>()))) + { + using _It = decltype(_End{}(std::declval<_Tp&>())); + // std::reverse_iterator copy-initializes its member. + return is_nothrow_copy_constructible_v<_It>; + } + else + return false; + } + } + + public: + template<__maybe_borrowed_range _Tp> + requires __member_rbegin<_Tp> || __adl_rbegin<_Tp> || __reversable<_Tp> + constexpr auto + operator()(_Tp&& __t) const + noexcept(_S_noexcept<_Tp>()) + { + if constexpr (__member_rbegin<_Tp>) + return __t.rbegin(); + else if constexpr (__adl_rbegin<_Tp>) + return rbegin(__t); + else + return std::make_reverse_iterator(_End{}(__t)); + } + }; + + template + concept __member_rend = requires(_Tp& __t) + { + { __decay_copy(__t.rend()) } + -> sentinel_for; + }; + + void rend(auto&) = delete; + void rend(const auto&) = delete; + + template + concept __adl_rend = __class_or_enum> + && requires(_Tp& __t) + { + { __decay_copy(rend(__t)) } + -> sentinel_for(__t)))>; + }; + + struct _REnd + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (__member_rend<_Tp>) + return noexcept(__decay_copy(std::declval<_Tp&>().rend())); + else if constexpr (__adl_rend<_Tp>) + return noexcept(__decay_copy(rend(std::declval<_Tp&>()))); + else + { + if constexpr (noexcept(_Begin{}(std::declval<_Tp&>()))) + { + using _It = decltype(_Begin{}(std::declval<_Tp&>())); + // std::reverse_iterator copy-initializes its member. + return is_nothrow_copy_constructible_v<_It>; + } + else + return false; + } + } + + public: + template<__maybe_borrowed_range _Tp> + requires __member_rend<_Tp> || __adl_rend<_Tp> || __reversable<_Tp> + constexpr auto + operator()(_Tp&& __t) const + noexcept(_S_noexcept<_Tp>()) + { + if constexpr (__member_rend<_Tp>) + return __t.rend(); + else if constexpr (__adl_rend<_Tp>) + return rend(__t); + else + return std::make_reverse_iterator(_Begin{}(__t)); + } + }; + + struct _CRBegin + { + template + constexpr auto + operator()(_Tp&& __e) const + noexcept(noexcept(_RBegin{}(__cust_access::__as_const((_Tp&&)__e)))) + requires requires { _RBegin{}(__cust_access::__as_const((_Tp&&)__e)); } + { + return _RBegin{}(__cust_access::__as_const(std::forward<_Tp>(__e))); + } + }; + + struct _CREnd + { + template + constexpr auto + operator()(_Tp&& __e) const + noexcept(noexcept(_REnd{}(__cust_access::__as_const((_Tp&&)__e)))) + requires requires { _REnd{}(__cust_access::__as_const((_Tp&&)__e)); } + { + return _REnd{}(__cust_access::__as_const(std::forward<_Tp>(__e))); + } + }; + + template + concept __member_size = !disable_sized_range> + && requires(_Tp&& __t) + { + { __decay_copy(std::forward<_Tp>(__t).size()) } + -> __detail::__is_integer_like; + }; + + void size(auto&) = delete; + void size(const auto&) = delete; + + template + concept __adl_size = __class_or_enum> + && !disable_sized_range> + && requires(_Tp&& __t) + { + { __decay_copy(size(std::forward<_Tp>(__t))) } + -> __detail::__is_integer_like; + }; + + template + concept __sentinel_size = requires(_Tp&& __t) + { + { _Begin{}(std::forward<_Tp>(__t)) } -> forward_iterator; + + { _End{}(std::forward<_Tp>(__t)) } + -> sized_sentinel_for(__t)))>; + }; + + struct _Size + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (is_bounded_array_v>) + return true; + else if constexpr (__member_size<_Tp>) + return noexcept(__decay_copy(std::declval<_Tp>().size())); + else if constexpr (__adl_size<_Tp>) + return noexcept(__decay_copy(size(std::declval<_Tp>()))); + else if constexpr (__sentinel_size<_Tp>) + return noexcept(_End{}(std::declval<_Tp>()) + - _Begin{}(std::declval<_Tp>())); + } + + public: + template + requires is_bounded_array_v> + || __member_size<_Tp> || __adl_size<_Tp> || __sentinel_size<_Tp> + constexpr auto + operator()(_Tp&& __e) const noexcept(_S_noexcept<_Tp>()) + { + if constexpr (is_bounded_array_v>) + { + return extent_v>; + } + else if constexpr (__member_size<_Tp>) + return std::forward<_Tp>(__e).size(); + else if constexpr (__adl_size<_Tp>) + return size(std::forward<_Tp>(__e)); + else if constexpr (__sentinel_size<_Tp>) + return __detail::__to_unsigned_like( + _End{}(std::forward<_Tp>(__e)) + - _Begin{}(std::forward<_Tp>(__e))); + } + }; + + struct _SSize + { + template + requires requires (_Tp&& __e) + { + _Begin{}(std::forward<_Tp>(__e)); + _Size{}(std::forward<_Tp>(__e)); + } + constexpr auto + operator()(_Tp&& __e) const + noexcept(noexcept(_Size{}(std::forward<_Tp>(__e)))) + { + using __iter_type = decltype(_Begin{}(std::forward<_Tp>(__e))); + using __diff_type = iter_difference_t<__iter_type>; + using __gnu_cxx::__int_traits; + auto __size = _Size{}(std::forward<_Tp>(__e)); + if constexpr (integral<__diff_type>) + { + if constexpr (__int_traits<__diff_type>::__digits + < __int_traits::__digits) + return static_cast(__size); + } + return static_cast<__diff_type>(__size); + } + }; + + template + concept __member_empty = requires(_Tp&& __t) + { bool(std::forward<_Tp>(__t).empty()); }; + + template + concept __size0_empty = requires(_Tp&& __t) + { _Size{}(std::forward<_Tp>(__t)) == 0; }; + + template + concept __eq_iter_empty = requires(_Tp&& __t) + { + { _Begin{}(std::forward<_Tp>(__t)) } -> forward_iterator; + bool(_Begin{}(std::forward<_Tp>(__t)) + == _End{}(std::forward<_Tp>(__t))); + }; + + struct _Empty + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (__member_empty<_Tp>) + return noexcept(std::declval<_Tp>().empty()); + else if constexpr (__size0_empty<_Tp>) + return noexcept(_Size{}(std::declval<_Tp>()) == 0); + else + return noexcept(bool(_Begin{}(std::declval<_Tp>()) + == _End{}(std::declval<_Tp>()))); + } + + public: + template + requires __member_empty<_Tp> || __size0_empty<_Tp> + || __eq_iter_empty<_Tp> + constexpr bool + operator()(_Tp&& __e) const noexcept(_S_noexcept<_Tp>()) + { + if constexpr (__member_empty<_Tp>) + return bool(std::forward<_Tp>(__e).empty()); + else if constexpr (__size0_empty<_Tp>) + return _Size{}(std::forward<_Tp>(__e)) == 0; + else + return bool(_Begin{}(std::forward<_Tp>(__e)) + == _End{}(std::forward<_Tp>(__e))); + } + }; + + template + concept __pointer_to_object = is_pointer_v<_Tp> + && is_object_v>; + + template + concept __member_data = is_lvalue_reference_v<_Tp> + && requires(_Tp __t) { { __t.data() } -> __pointer_to_object; }; + + template + concept __begin_data = requires(_Tp&& __t) + { { _Begin{}(std::forward<_Tp>(__t)) } -> contiguous_iterator; }; + + struct _Data + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (__member_data<_Tp>) + return noexcept(__decay_copy(std::declval<_Tp>().data())); + else + return noexcept(_Begin{}(std::declval<_Tp>())); + } + + public: + template<__maybe_borrowed_range _Tp> + requires __member_data<_Tp> || __begin_data<_Tp> + constexpr auto + operator()(_Tp&& __e) const noexcept(_S_noexcept<_Tp>()) + { + if constexpr (__member_data<_Tp>) + return __e.data(); + else + return std::to_address(_Begin{}(std::forward<_Tp>(__e))); + } + }; + + struct _CData + { + template + constexpr auto + operator()(_Tp&& __e) const + noexcept(noexcept(_Data{}(__cust_access::__as_const((_Tp&&)__e)))) + requires requires { _Data{}(__cust_access::__as_const((_Tp&&)__e)); } + { + return _Data{}(__cust_access::__as_const(std::forward<_Tp>(__e))); + } + }; + + } // namespace __cust_access + + inline namespace __cust + { + inline constexpr __cust_access::_Begin begin{}; + inline constexpr __cust_access::_End end{}; + inline constexpr __cust_access::_CBegin cbegin{}; + inline constexpr __cust_access::_CEnd cend{}; + inline constexpr __cust_access::_RBegin rbegin{}; + inline constexpr __cust_access::_REnd rend{}; + inline constexpr __cust_access::_CRBegin crbegin{}; + inline constexpr __cust_access::_CREnd crend{}; + inline constexpr __cust_access::_Size size{}; + inline constexpr __cust_access::_SSize ssize{}; + inline constexpr __cust_access::_Empty empty{}; + inline constexpr __cust_access::_Data data{}; + inline constexpr __cust_access::_CData cdata{}; + } + + /// [range.range] The range concept. + template + concept range = requires(_Tp& __t) + { + ranges::begin(__t); + ranges::end(__t); + }; + + /// [range.range] The borrowed_range concept. + template + concept borrowed_range + = range<_Tp> && __detail::__maybe_borrowed_range<_Tp>; + + template + using iterator_t = std::__detail::__range_iter_t<_Tp>; + + template + using sentinel_t = decltype(ranges::end(std::declval<_Range&>())); + + template + using range_difference_t = iter_difference_t>; + + template + using range_value_t = iter_value_t>; + + template + using range_reference_t = iter_reference_t>; + + template + using range_rvalue_reference_t + = iter_rvalue_reference_t>; + + /// [range.sized] The sized_range concept. + template + concept sized_range = range<_Tp> + && requires(_Tp& __t) { ranges::size(__t); }; + + template + using range_size_t = decltype(ranges::size(std::declval<_Range&>())); + + // [range.refinements] + + /// A range for which ranges::begin returns an output iterator. + template + concept output_range + = range<_Range> && output_iterator, _Tp>; + + /// A range for which ranges::begin returns an input iterator. + template + concept input_range = range<_Tp> && input_iterator>; + + /// A range for which ranges::begin returns a forward iterator. + template + concept forward_range + = input_range<_Tp> && forward_iterator>; + + /// A range for which ranges::begin returns a bidirectional iterator. + template + concept bidirectional_range + = forward_range<_Tp> && bidirectional_iterator>; + + /// A range for which ranges::begin returns a random access iterator. + template + concept random_access_range + = bidirectional_range<_Tp> && random_access_iterator>; + + /// A range for which ranges::begin returns a contiguous iterator. + template + concept contiguous_range + = random_access_range<_Tp> && contiguous_iterator> + && requires(_Tp& __t) + { + { ranges::data(__t) } -> same_as>>; + }; + + /// A range for which ranges::begin and ranges::end return the same type. + template + concept common_range + = range<_Tp> && same_as, sentinel_t<_Tp>>; + + // [range.iter.ops] range iterator operations + + template + constexpr void + advance(_It& __it, iter_difference_t<_It> __n) + { + if constexpr (random_access_iterator<_It>) + __it += __n; + else if constexpr (bidirectional_iterator<_It>) + { + if (__n > 0) + { + do + { + ++__it; + } + while (--__n); + } + else if (__n < 0) + { + do + { + --__it; + } + while (++__n); + } + } + else + { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated() && __n < 0) + throw "attempt to decrement a non-bidirectional iterator"; +#endif + __glibcxx_assert(__n >= 0); + while (__n-- > 0) + ++__it; + } + } + + template _Sent> + constexpr void + advance(_It& __it, _Sent __bound) + { + if constexpr (assignable_from<_It&, _Sent>) + __it = std::move(__bound); + else if constexpr (sized_sentinel_for<_Sent, _It>) + ranges::advance(__it, __bound - __it); + else + { + while (__it != __bound) + ++__it; + } + } + + template _Sent> + constexpr iter_difference_t<_It> + advance(_It& __it, iter_difference_t<_It> __n, _Sent __bound) + { + if constexpr (sized_sentinel_for<_Sent, _It>) + { + const auto __diff = __bound - __it; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated() + && !(__n == 0 || __diff == 0 || (__n < 0 == __diff < 0))) + throw "inconsistent directions for distance and bound"; +#endif + // n and bound must not lead in opposite directions: + __glibcxx_assert(__n == 0 || __diff == 0 || (__n < 0 == __diff < 0)); + const auto __absdiff = __diff < 0 ? -__diff : __diff; + const auto __absn = __n < 0 ? -__n : __n;; + if (__absn >= __absdiff) + { + ranges::advance(__it, __bound); + return __n - __diff; + } + else + { + ranges::advance(__it, __n); + return 0; + } + } + else if (__it == __bound || __n == 0) + return iter_difference_t<_It>(0); + else if (__n > 0) + { + iter_difference_t<_It> __m = 0; + do + { + ++__it; + ++__m; + } + while (__m != __n && __it != __bound); + return __n - __m; + } + else if constexpr (bidirectional_iterator<_It> && same_as<_It, _Sent>) + { + iter_difference_t<_It> __m = 0; + do + { + --__it; + --__m; + } + while (__m != __n && __it != __bound); + return __n - __m; + } + else + { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated() && __n < 0) + throw "attempt to decrement a non-bidirectional iterator"; +#endif + __glibcxx_assert(__n >= 0); + return __n; + } + } + + template _Sent> + constexpr iter_difference_t<_It> + distance(_It __first, _Sent __last) + { + if constexpr (sized_sentinel_for<_Sent, _It>) + return __last - __first; + else + { + iter_difference_t<_It> __n = 0; + while (__first != __last) + { + ++__first; + ++__n; + } + return __n; + } + } + + template + constexpr range_difference_t<_Range> + distance(_Range&& __r) + { + if constexpr (sized_range<_Range>) + return static_cast>(ranges::size(__r)); + else + return ranges::distance(ranges::begin(__r), ranges::end(__r)); + } + + template + constexpr _It + next(_It __x) + { + ++__x; + return __x; + } + + template + constexpr _It + next(_It __x, iter_difference_t<_It> __n) + { + ranges::advance(__x, __n); + return __x; + } + + template _Sent> + constexpr _It + next(_It __x, _Sent __bound) + { + ranges::advance(__x, __bound); + return __x; + } + + template _Sent> + constexpr _It + next(_It __x, iter_difference_t<_It> __n, _Sent __bound) + { + ranges::advance(__x, __n, __bound); + return __x; + } + + template + constexpr _It + prev(_It __x) + { + --__x; + return __x; + } + + template + constexpr _It + prev(_It __x, iter_difference_t<_It> __n) + { + ranges::advance(__x, -__n); + return __x; + } + + template + constexpr _It + prev(_It __x, iter_difference_t<_It> __n, _It __bound) + { + ranges::advance(__x, -__n, __bound); + return __x; + } + +} // namespace ranges +#endif // library concepts +#endif // C++20 +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif // _GLIBCXX_RANGE_ACCESS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/range_cmp.h b/resources/sources/avr-libstdcpp/include/bits/range_cmp.h new file mode 100644 index 000000000..0587c599c --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/range_cmp.h @@ -0,0 +1,195 @@ +// Concept-constrained comparison implementations -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/range_cmp.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _RANGE_CMP_H +#define _RANGE_CMP_H 1 + +#if __cplusplus > 201703L +# include +# include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + struct __is_transparent; // not defined + + // Define std::identity here so that and + // don't need to include to get it. + + /// [func.identity] The identity function. + struct identity + { + template + constexpr _Tp&& + operator()(_Tp&& __t) const noexcept + { return std::forward<_Tp>(__t); } + + using is_transparent = __is_transparent; + }; + +#ifdef __cpp_lib_concepts +// Define this here, included by all the headers that need to define it. +#define __cpp_lib_ranges 201911L + +namespace ranges +{ + namespace __detail + { + // BUILTIN-PTR-CMP(T, ==, U) + template + concept __eq_builtin_ptr_cmp + = requires (_Tp&& __t, _Up&& __u) { { __t == __u } -> same_as; } + && convertible_to<_Tp, const volatile void*> + && convertible_to<_Up, const volatile void*> + && (! requires(_Tp&& __t, _Up&& __u) + { operator==(std::forward<_Tp>(__t), std::forward<_Up>(__u)); } + && + ! requires(_Tp&& __t, _Up&& __u) + { std::forward<_Tp>(__t).operator==(std::forward<_Up>(__u)); }); + + // BUILTIN-PTR-CMP(T, <, U) + template + concept __less_builtin_ptr_cmp + = requires (_Tp&& __t, _Up&& __u) { { __t < __u } -> same_as; } + && convertible_to<_Tp, const volatile void*> + && convertible_to<_Up, const volatile void*> + && (! requires(_Tp&& __t, _Up&& __u) + { operator<(std::forward<_Tp>(__t), std::forward<_Up>(__u)); } + && ! requires(_Tp&& __t, _Up&& __u) + { std::forward<_Tp>(__t).operator<(std::forward<_Up>(__u)); }); + } // namespace __detail + + // [range.cmp] Concept-constrained comparisons + + /// ranges::equal_to function object type. + struct equal_to + { + template + requires equality_comparable_with<_Tp, _Up> + || __detail::__eq_builtin_ptr_cmp<_Tp, _Up> + constexpr bool + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Tp>() == std::declval<_Up>())) + { return std::forward<_Tp>(__t) == std::forward<_Up>(__u); } + + using is_transparent = __is_transparent; + }; + + /// ranges::not_equal_to function object type. + struct not_equal_to + { + template + requires equality_comparable_with<_Tp, _Up> + || __detail::__eq_builtin_ptr_cmp<_Tp, _Up> + constexpr bool + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Up>() == std::declval<_Tp>())) + { return !equal_to{}(std::forward<_Tp>(__t), std::forward<_Up>(__u)); } + + using is_transparent = __is_transparent; + }; + + /// ranges::less function object type. + struct less + { + template + requires totally_ordered_with<_Tp, _Up> + || __detail::__less_builtin_ptr_cmp<_Tp, _Up> + constexpr bool + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Tp>() < std::declval<_Up>())) + { + if constexpr (__detail::__less_builtin_ptr_cmp<_Tp, _Up>) + { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return __t < __u; +#endif + auto __x = reinterpret_cast<__UINTPTR_TYPE__>( + static_cast(std::forward<_Tp>(__t))); + auto __y = reinterpret_cast<__UINTPTR_TYPE__>( + static_cast(std::forward<_Up>(__u))); + return __x < __y; + } + else + return std::forward<_Tp>(__t) < std::forward<_Up>(__u); + } + + using is_transparent = __is_transparent; + }; + + /// ranges::greater function object type. + struct greater + { + template + requires totally_ordered_with<_Tp, _Up> + || __detail::__less_builtin_ptr_cmp<_Up, _Tp> + constexpr bool + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Up>() < std::declval<_Tp>())) + { return less{}(std::forward<_Up>(__u), std::forward<_Tp>(__t)); } + + using is_transparent = __is_transparent; + }; + + /// ranges::greater_equal function object type. + struct greater_equal + { + template + requires totally_ordered_with<_Tp, _Up> + || __detail::__less_builtin_ptr_cmp<_Tp, _Up> + constexpr bool + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Tp>() < std::declval<_Up>())) + { return !less{}(std::forward<_Tp>(__t), std::forward<_Up>(__u)); } + + using is_transparent = __is_transparent; + }; + + /// ranges::less_equal function object type. + struct less_equal + { + template + requires totally_ordered_with<_Tp, _Up> + || __detail::__less_builtin_ptr_cmp<_Up, _Tp> + constexpr bool + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Up>() < std::declval<_Tp>())) + { return !less{}(std::forward<_Up>(__u), std::forward<_Tp>(__t)); } + + using is_transparent = __is_transparent; + }; + +} // namespace ranges +#endif // library concepts +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 +#endif // _RANGE_CMP_H diff --git a/resources/sources/avr-libstdcpp/include/bits/ranges_algo.h b/resources/sources/avr-libstdcpp/include/bits/ranges_algo.h new file mode 100644 index 000000000..4d4f74016 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/ranges_algo.h @@ -0,0 +1,3792 @@ +// Core algorithmic facilities -*- C++ -*- + +// Copyright (C) 2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/ranges_algo.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{algorithm} + */ + +#ifndef _RANGES_ALGO_H +#define _RANGES_ALGO_H 1 + +#if __cplusplus > 201703L + +#include +#include // concept uniform_random_bit_generator + +#if __cpp_lib_concepts +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +namespace ranges +{ + namespace __detail + { + template + constexpr auto + __make_comp_proj(_Comp& __comp, _Proj& __proj) + { + return [&] (auto&& __lhs, auto&& __rhs) -> bool { + using _TL = decltype(__lhs); + using _TR = decltype(__rhs); + return std::__invoke(__comp, + std::__invoke(__proj, std::forward<_TL>(__lhs)), + std::__invoke(__proj, std::forward<_TR>(__rhs))); + }; + } + + template + constexpr auto + __make_pred_proj(_Pred& __pred, _Proj& __proj) + { + return [&] (_Tp&& __arg) -> bool { + return std::__invoke(__pred, + std::__invoke(__proj, std::forward<_Tp>(__arg))); + }; + } + } // namespace __detail + + struct __all_of_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr bool + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (!(bool)std::__invoke(__pred, std::__invoke(__proj, *__first))) + return false; + return true; + } + + template, _Proj>> + _Pred> + constexpr bool + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __all_of_fn all_of{}; + + struct __any_of_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr bool + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + return true; + return false; + } + + template, _Proj>> + _Pred> + constexpr bool + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __any_of_fn any_of{}; + + struct __none_of_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr bool + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + return false; + return true; + } + + template, _Proj>> + _Pred> + constexpr bool + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __none_of_fn none_of{}; + + template + struct in_fun_result + { + [[no_unique_address]] _Iter in; + [[no_unique_address]] _Fp fun; + + template + requires convertible_to + && convertible_to + constexpr + operator in_fun_result<_Iter2, _F2p>() const & + { return {in, fun}; } + + template + requires convertible_to<_Iter, _Iter2> && convertible_to<_Fp, _F2p> + constexpr + operator in_fun_result<_Iter2, _F2p>() && + { return {std::move(in), std::move(fun)}; } + }; + + template + using for_each_result = in_fun_result<_Iter, _Fp>; + + struct __for_each_fn + { + template _Sent, + typename _Proj = identity, + indirectly_unary_invocable> _Fun> + constexpr for_each_result<_Iter, _Fun> + operator()(_Iter __first, _Sent __last, _Fun __f, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + std::__invoke(__f, std::__invoke(__proj, *__first)); + return { std::move(__first), std::move(__f) }; + } + + template, _Proj>> + _Fun> + constexpr for_each_result, _Fun> + operator()(_Range&& __r, _Fun __f, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__f), std::move(__proj)); + } + }; + + inline constexpr __for_each_fn for_each{}; + + template + using for_each_n_result = in_fun_result<_Iter, _Fp>; + + struct __for_each_n_fn + { + template> _Fun> + constexpr for_each_n_result<_Iter, _Fun> + operator()(_Iter __first, iter_difference_t<_Iter> __n, + _Fun __f, _Proj __proj = {}) const + { + if constexpr (random_access_iterator<_Iter>) + { + if (__n <= 0) + return {std::move(__first), std::move(__f)}; + auto __last = __first + __n; + return ranges::for_each(std::move(__first), std::move(__last), + std::move(__f), std::move(__proj)); + } + else + { + while (__n-- > 0) + { + std::__invoke(__f, std::__invoke(__proj, *__first)); + ++__first; + } + return {std::move(__first), std::move(__f)}; + } + } + }; + + inline constexpr __for_each_n_fn for_each_n{}; + + struct __find_fn + { + template _Sent, typename _Tp, + typename _Proj = identity> + requires indirect_binary_predicate, const _Tp*> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Proj __proj = {}) const + { + while (__first != __last + && !(std::__invoke(__proj, *__first) == __value)) + ++__first; + return __first; + } + + template + requires indirect_binary_predicate, _Proj>, + const _Tp*> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, const _Tp& __value, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__proj)); + } + }; + + inline constexpr __find_fn find{}; + + struct __find_if_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + while (__first != __last + && !(bool)std::__invoke(__pred, std::__invoke(__proj, *__first))) + ++__first; + return __first; + } + + template, _Proj>> + _Pred> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __find_if_fn find_if{}; + + struct __find_if_not_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + while (__first != __last + && (bool)std::__invoke(__pred, std::__invoke(__proj, *__first))) + ++__first; + return __first; + } + + template, _Proj>> + _Pred> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __find_if_not_fn find_if_not{}; + + struct __find_first_of_fn + { + template _Sent1, + forward_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Pred = ranges::equal_to, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2> + constexpr _Iter1 + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + for (; __first1 != __last1; ++__first1) + for (auto __iter = __first2; __iter != __last2; ++__iter) + if (std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__iter))) + return __first1; + return __first1; + } + + template + requires indirectly_comparable, iterator_t<_Range2>, + _Pred, _Proj1, _Proj2> + constexpr borrowed_iterator_t<_Range1> + operator()(_Range1&& __r1, _Range2&& __r2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __find_first_of_fn find_first_of{}; + + struct __count_fn + { + template _Sent, + typename _Tp, typename _Proj = identity> + requires indirect_binary_predicate, + const _Tp*> + constexpr iter_difference_t<_Iter> + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Proj __proj = {}) const + { + iter_difference_t<_Iter> __n = 0; + for (; __first != __last; ++__first) + if (std::__invoke(__proj, *__first) == __value) + ++__n; + return __n; + } + + template + requires indirect_binary_predicate, _Proj>, + const _Tp*> + constexpr range_difference_t<_Range> + operator()(_Range&& __r, const _Tp& __value, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__proj)); + } + }; + + inline constexpr __count_fn count{}; + + struct __count_if_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr iter_difference_t<_Iter> + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + iter_difference_t<_Iter> __n = 0; + for (; __first != __last; ++__first) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + ++__n; + return __n; + } + + template, _Proj>> + _Pred> + constexpr range_difference_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __count_if_fn count_if{}; + + template + struct in_in_result + { + [[no_unique_address]] _Iter1 in1; + [[no_unique_address]] _Iter2 in2; + + template + requires convertible_to + && convertible_to + constexpr + operator in_in_result<_IIter1, _IIter2>() const & + { return {in1, in2}; } + + template + requires convertible_to<_Iter1, _IIter1> + && convertible_to<_Iter2, _IIter2> + constexpr + operator in_in_result<_IIter1, _IIter2>() && + { return {std::move(in1), std::move(in2)}; } + }; + + template + using mismatch_result = in_in_result<_Iter1, _Iter2>; + + struct __mismatch_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Pred = ranges::equal_to, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2> + constexpr mismatch_result<_Iter1, _Iter2> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2 + && (bool)std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + { + ++__first1; + ++__first2; + } + return { std::move(__first1), std::move(__first2) }; + } + + template + requires indirectly_comparable, iterator_t<_Range2>, + _Pred, _Proj1, _Proj2> + constexpr mismatch_result, iterator_t<_Range2>> + operator()(_Range1&& __r1, _Range2&& __r2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __mismatch_fn mismatch{}; + + struct __search_fn + { + template _Sent1, + forward_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Pred = ranges::equal_to, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2> + constexpr subrange<_Iter1> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + if (__first1 == __last1 || __first2 == __last2) + return {__first1, __first1}; + + for (;;) + { + for (;;) + { + if (__first1 == __last1) + return {__first1, __first1}; + if (std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + break; + ++__first1; + } + auto __cur1 = __first1; + auto __cur2 = __first2; + for (;;) + { + if (++__cur2 == __last2) + return {__first1, ++__cur1}; + if (++__cur1 == __last1) + return {__cur1, __cur1}; + if (!(bool)std::__invoke(__pred, + std::__invoke(__proj1, *__cur1), + std::__invoke(__proj2, *__cur2))) + { + ++__first1; + break; + } + } + } + } + + template + requires indirectly_comparable, iterator_t<_Range2>, + _Pred, _Proj1, _Proj2> + constexpr borrowed_subrange_t<_Range1> + operator()(_Range1&& __r1, _Range2&& __r2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __search_fn search{}; + + struct __search_n_fn + { + template _Sent, typename _Tp, + typename _Pred = ranges::equal_to, typename _Proj = identity> + requires indirectly_comparable<_Iter, const _Tp*, _Pred, _Proj> + constexpr subrange<_Iter> + operator()(_Iter __first, _Sent __last, iter_difference_t<_Iter> __count, + const _Tp& __value, _Pred __pred = {}, _Proj __proj = {}) const + { + if (__count <= 0) + return {__first, __first}; + + auto __value_comp = [&] (_Rp&& __arg) { + return std::__invoke(__pred, std::forward<_Rp>(__arg), __value); + }; + if (__count == 1) + { + __first = ranges::find_if(std::move(__first), __last, + std::move(__value_comp), + std::move(__proj)); + if (__first == __last) + return {__first, __first}; + else + { + auto __end = __first; + return {__first, ++__end}; + } + } + + if constexpr (sized_sentinel_for<_Sent, _Iter>) + { + auto __tail_size = __last - __first; + auto __remainder = __count; + + while (__remainder <= __tail_size) + { + __first += __remainder; + __tail_size -= __remainder; + auto __backtrack = __first; + while (__value_comp(std::__invoke(__proj, *--__backtrack))) + { + if (--__remainder == 0) + return {__first - __count, __first}; + } + } + auto __i = __first + __tail_size; + return {__i, __i}; + } + else + { + __first = ranges::find_if(__first, __last, __value_comp, __proj); + while (__first != __last) + { + auto __n = __count; + auto __i = __first; + ++__i; + while (__i != __last && __n != 1 + && __value_comp(std::__invoke(__proj, *__i))) + { + ++__i; + --__n; + } + if (__n == 1) + return {__first, __i}; + if (__i == __last) + return {__i, __i}; + __first = ranges::find_if(++__i, __last, __value_comp, __proj); + } + return {__first, __first}; + } + } + + template + requires indirectly_comparable, const _Tp*, + _Pred, _Proj> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, range_difference_t<_Range> __count, + const _Tp& __value, _Pred __pred = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__count), __value, + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __search_n_fn search_n{}; + + struct __find_end_fn + { + template _Sent1, + forward_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Pred = ranges::equal_to, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2> + constexpr subrange<_Iter1> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + if constexpr (bidirectional_iterator<_Iter1> + && bidirectional_iterator<_Iter2>) + { + auto __i1 = ranges::next(__first1, __last1); + auto __i2 = ranges::next(__first2, __last2); + auto __rresult + = ranges::search(reverse_iterator<_Iter1>{__i1}, + reverse_iterator<_Iter1>{__first1}, + reverse_iterator<_Iter2>{__i2}, + reverse_iterator<_Iter2>{__first2}, + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + auto __result_first = ranges::end(__rresult).base(); + auto __result_last = ranges::begin(__rresult).base(); + if (__result_last == __first1) + return {__i1, __i1}; + else + return {__result_first, __result_last}; + } + else + { + auto __i = ranges::next(__first1, __last1); + if (__first2 == __last2) + return {__i, __i}; + + auto __result_begin = __i; + auto __result_end = __i; + for (;;) + { + auto __new_range = ranges::search(__first1, __last1, + __first2, __last2, + __pred, __proj1, __proj2); + auto __new_result_begin = ranges::begin(__new_range); + auto __new_result_end = ranges::end(__new_range); + if (__new_result_begin == __last1) + return {__result_begin, __result_end}; + else + { + __result_begin = __new_result_begin; + __result_end = __new_result_end; + __first1 = __result_begin; + ++__first1; + } + } + } + } + + template + requires indirectly_comparable, iterator_t<_Range2>, + _Pred, _Proj1, _Proj2> + constexpr borrowed_subrange_t<_Range1> + operator()(_Range1&& __r1, _Range2&& __r2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __find_end_fn find_end{}; + + struct __adjacent_find_fn + { + template _Sent, + typename _Proj = identity, + indirect_binary_predicate, + projected<_Iter, _Proj>> _Pred + = ranges::equal_to> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Pred __pred = {}, _Proj __proj = {}) const + { + if (__first == __last) + return __first; + auto __next = __first; + for (; ++__next != __last; __first = __next) + { + if (std::__invoke(__pred, + std::__invoke(__proj, *__first), + std::__invoke(__proj, *__next))) + return __first; + } + return __next; + } + + template, _Proj>, + projected, _Proj>> _Pred = ranges::equal_to> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Pred __pred = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __adjacent_find_fn adjacent_find{}; + + struct __is_permutation_fn + { + template _Sent1, + forward_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Proj1 = identity, typename _Proj2 = identity, + indirect_equivalence_relation, + projected<_Iter2, _Proj2>> _Pred + = ranges::equal_to> + constexpr bool + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + constexpr bool __sized_iters + = (sized_sentinel_for<_Sent1, _Iter1> + && sized_sentinel_for<_Sent2, _Iter2>); + if constexpr (__sized_iters) + { + auto __d1 = ranges::distance(__first1, __last1); + auto __d2 = ranges::distance(__first2, __last2); + if (__d1 != __d2) + return false; + } + + // Efficiently compare identical prefixes: O(N) if sequences + // have the same elements in the same order. + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + if (!(bool)std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + break; + + if constexpr (__sized_iters) + { + if (__first1 == __last1) + return true; + } + else + { + auto __d1 = ranges::distance(__first1, __last1); + auto __d2 = ranges::distance(__first2, __last2); + if (__d1 == 0 && __d2 == 0) + return true; + if (__d1 != __d2) + return false; + } + + for (auto __scan = __first1; __scan != __last1; ++__scan) + { + auto __proj_scan = std::__invoke(__proj1, *__scan); + auto __comp_scan = [&] (_Tp&& __arg) { + return std::__invoke(__pred, __proj_scan, + std::forward<_Tp>(__arg)); + }; + if (__scan != ranges::find_if(__first1, __scan, + __comp_scan, __proj1)) + continue; // We've seen this one before. + + auto __matches = ranges::count_if(__first2, __last2, + __comp_scan, __proj2); + if (__matches == 0 + || ranges::count_if(__scan, __last1, + __comp_scan, __proj1) != __matches) + return false; + } + return true; + } + + template, _Proj1>, + projected, _Proj2>> _Pred = ranges::equal_to> + constexpr bool + operator()(_Range1&& __r1, _Range2&& __r2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __is_permutation_fn is_permutation{}; + + template + using copy_if_result = in_out_result<_Iter, _Out>; + + struct __copy_if_fn + { + template _Sent, + weakly_incrementable _Out, typename _Proj = identity, + indirect_unary_predicate> _Pred> + requires indirectly_copyable<_Iter, _Out> + constexpr copy_if_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result, + _Pred __pred, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + { + *__result = *__first; + ++__result; + } + return {std::move(__first), std::move(__result)}; + } + + template, _Proj>> + _Pred> + requires indirectly_copyable, _Out> + constexpr copy_if_result, _Out> + operator()(_Range&& __r, _Out __result, + _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __copy_if_fn copy_if{}; + + template + using swap_ranges_result = in_in_result<_Iter1, _Iter2>; + + struct __swap_ranges_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2> + requires indirectly_swappable<_Iter1, _Iter2> + constexpr swap_ranges_result<_Iter1, _Iter2> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2) const + { + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + ranges::iter_swap(__first1, __first2); + return {std::move(__first1), std::move(__first2)}; + } + + template + requires indirectly_swappable, iterator_t<_Range2>> + constexpr swap_ranges_result, + borrowed_iterator_t<_Range2>> + operator()(_Range1&& __r1, _Range2&& __r2) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2)); + } + }; + + inline constexpr __swap_ranges_fn swap_ranges{}; + + template + using unary_transform_result = in_out_result<_Iter, _Out>; + + template + struct in_in_out_result + { + [[no_unique_address]] _Iter1 in1; + [[no_unique_address]] _Iter2 in2; + [[no_unique_address]] _Out out; + + template + requires convertible_to + && convertible_to + && convertible_to + constexpr + operator in_in_out_result<_IIter1, _IIter2, _OOut>() const & + { return {in1, in2, out}; } + + template + requires convertible_to<_Iter1, _IIter1> + && convertible_to<_Iter2, _IIter2> + && convertible_to<_Out, _OOut> + constexpr + operator in_in_out_result<_IIter1, _IIter2, _OOut>() && + { return {std::move(in1), std::move(in2), std::move(out)}; } + }; + + template + using binary_transform_result = in_in_out_result<_Iter1, _Iter2, _Out>; + + struct __transform_fn + { + template _Sent, + weakly_incrementable _Out, + copy_constructible _Fp, typename _Proj = identity> + requires indirectly_writable<_Out, + indirect_result_t<_Fp&, + projected<_Iter, _Proj>>> + constexpr unary_transform_result<_Iter, _Out> + operator()(_Iter __first1, _Sent __last1, _Out __result, + _Fp __op, _Proj __proj = {}) const + { + for (; __first1 != __last1; ++__first1, (void)++__result) + *__result = std::__invoke(__op, std::__invoke(__proj, *__first1)); + return {std::move(__first1), std::move(__result)}; + } + + template + requires indirectly_writable<_Out, + indirect_result_t<_Fp&, + projected, _Proj>>> + constexpr unary_transform_result, _Out> + operator()(_Range&& __r, _Out __result, _Fp __op, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), + std::move(__op), std::move(__proj)); + } + + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + weakly_incrementable _Out, copy_constructible _Fp, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_writable<_Out, + indirect_result_t<_Fp&, + projected<_Iter1, _Proj1>, + projected<_Iter2, _Proj2>>> + constexpr binary_transform_result<_Iter1, _Iter2, _Out> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, + _Out __result, _Fp __binary_op, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2, ++__result) + *__result = std::__invoke(__binary_op, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2)); + return {std::move(__first1), std::move(__first2), std::move(__result)}; + } + + template + requires indirectly_writable<_Out, + indirect_result_t<_Fp&, + projected, _Proj1>, + projected, _Proj2>>> + constexpr binary_transform_result, + borrowed_iterator_t<_Range2>, _Out> + operator()(_Range1&& __r1, _Range2&& __r2, _Out __result, _Fp __binary_op, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__result), std::move(__binary_op), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __transform_fn transform{}; + + struct __replace_fn + { + template _Sent, + typename _Tp1, typename _Tp2, typename _Proj = identity> + requires indirectly_writable<_Iter, const _Tp2&> + && indirect_binary_predicate, + const _Tp1*> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + const _Tp1& __old_value, const _Tp2& __new_value, + _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (std::__invoke(__proj, *__first) == __old_value) + *__first = __new_value; + return __first; + } + + template + requires indirectly_writable, const _Tp2&> + && indirect_binary_predicate, _Proj>, + const _Tp1*> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, + const _Tp1& __old_value, const _Tp2& __new_value, + _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __old_value, __new_value, std::move(__proj)); + } + }; + + inline constexpr __replace_fn replace{}; + + struct __replace_if_fn + { + template _Sent, + typename _Tp, typename _Proj = identity, + indirect_unary_predicate> _Pred> + requires indirectly_writable<_Iter, const _Tp&> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Pred __pred, const _Tp& __new_value, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + *__first = __new_value; + return std::move(__first); + } + + template, _Proj>> + _Pred> + requires indirectly_writable, const _Tp&> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, + _Pred __pred, const _Tp& __new_value, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), __new_value, std::move(__proj)); + } + }; + + inline constexpr __replace_if_fn replace_if{}; + + template + using replace_copy_result = in_out_result<_Iter, _Out>; + + struct __replace_copy_fn + { + template _Sent, + typename _Tp1, typename _Tp2, output_iterator _Out, + typename _Proj = identity> + requires indirectly_copyable<_Iter, _Out> + && indirect_binary_predicate, const _Tp1*> + constexpr replace_copy_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result, + const _Tp1& __old_value, const _Tp2& __new_value, + _Proj __proj = {}) const + { + for (; __first != __last; ++__first, (void)++__result) + if (std::__invoke(__proj, *__first) == __old_value) + *__result = __new_value; + else + *__result = *__first; + return {std::move(__first), std::move(__result)}; + } + + template _Out, typename _Proj = identity> + requires indirectly_copyable, _Out> + && indirect_binary_predicate, _Proj>, + const _Tp1*> + constexpr replace_copy_result, _Out> + operator()(_Range&& __r, _Out __result, + const _Tp1& __old_value, const _Tp2& __new_value, + _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), __old_value, + __new_value, std::move(__proj)); + } + }; + + inline constexpr __replace_copy_fn replace_copy{}; + + template + using replace_copy_if_result = in_out_result<_Iter, _Out>; + + struct __replace_copy_if_fn + { + template _Sent, + typename _Tp, output_iterator _Out, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + requires indirectly_copyable<_Iter, _Out> + constexpr replace_copy_if_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result, + _Pred __pred, const _Tp& __new_value, _Proj __proj = {}) const + { + for (; __first != __last; ++__first, (void)++__result) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + *__result = __new_value; + else + *__result = *__first; + return {std::move(__first), std::move(__result)}; + } + + template _Out, + typename _Proj = identity, + indirect_unary_predicate, _Proj>> + _Pred> + requires indirectly_copyable, _Out> + constexpr replace_copy_if_result, _Out> + operator()(_Range&& __r, _Out __result, + _Pred __pred, const _Tp& __new_value, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), std::move(__pred), + __new_value, std::move(__proj)); + } + }; + + inline constexpr __replace_copy_if_fn replace_copy_if{}; + + struct __generate_n_fn + { + template + requires invocable<_Fp&> + && indirectly_writable<_Out, invoke_result_t<_Fp&>> + constexpr _Out + operator()(_Out __first, iter_difference_t<_Out> __n, _Fp __gen) const + { + for (; __n > 0; --__n, (void)++__first) + *__first = std::__invoke(__gen); + return __first; + } + }; + + inline constexpr __generate_n_fn generate_n{}; + + struct __generate_fn + { + template _Sent, + copy_constructible _Fp> + requires invocable<_Fp&> + && indirectly_writable<_Out, invoke_result_t<_Fp&>> + constexpr _Out + operator()(_Out __first, _Sent __last, _Fp __gen) const + { + for (; __first != __last; ++__first) + *__first = std::__invoke(__gen); + return __first; + } + + template + requires invocable<_Fp&> && output_range<_Range, invoke_result_t<_Fp&>> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Fp __gen) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), std::move(__gen)); + } + }; + + inline constexpr __generate_fn generate{}; + + struct __remove_if_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr subrange<_Iter> + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + __first = ranges::find_if(__first, __last, __pred, __proj); + if (__first == __last) + return {__first, __first}; + + auto __result = __first; + ++__first; + for (; __first != __last; ++__first) + if (!std::__invoke(__pred, std::__invoke(__proj, *__first))) + { + *__result = std::move(*__first); + ++__result; + } + + return {__result, __first}; + } + + template, _Proj>> + _Pred> + requires permutable> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __remove_if_fn remove_if{}; + + struct __remove_fn + { + template _Sent, + typename _Tp, typename _Proj = identity> + requires indirect_binary_predicate, + const _Tp*> + constexpr subrange<_Iter> + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Proj __proj = {}) const + { + auto __pred = [&] (auto&& __arg) { + return std::forward(__arg) == __value; + }; + return ranges::remove_if(__first, __last, + std::move(__pred), std::move(__proj)); + } + + template + requires permutable> + && indirect_binary_predicate, _Proj>, + const _Tp*> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, const _Tp& __value, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__proj)); + } + }; + + inline constexpr __remove_fn remove{}; + + template + using remove_copy_if_result = in_out_result<_Iter, _Out>; + + struct __remove_copy_if_fn + { + template _Sent, + weakly_incrementable _Out, typename _Proj = identity, + indirect_unary_predicate> _Pred> + requires indirectly_copyable<_Iter, _Out> + constexpr remove_copy_if_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result, + _Pred __pred, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (!std::__invoke(__pred, std::__invoke(__proj, *__first))) + { + *__result = *__first; + ++__result; + } + return {std::move(__first), std::move(__result)}; + } + + template, _Proj>> + _Pred> + requires indirectly_copyable, _Out> + constexpr remove_copy_if_result, _Out> + operator()(_Range&& __r, _Out __result, + _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __remove_copy_if_fn remove_copy_if{}; + + template + using remove_copy_result = in_out_result<_Iter, _Out>; + + struct __remove_copy_fn + { + template _Sent, + weakly_incrementable _Out, typename _Tp, typename _Proj = identity> + requires indirectly_copyable<_Iter, _Out> + && indirect_binary_predicate, + const _Tp*> + constexpr remove_copy_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result, + const _Tp& __value, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (!(std::__invoke(__proj, *__first) == __value)) + { + *__result = *__first; + ++__result; + } + return {std::move(__first), std::move(__result)}; + } + + template + requires indirectly_copyable, _Out> + && indirect_binary_predicate, _Proj>, + const _Tp*> + constexpr remove_copy_result, _Out> + operator()(_Range&& __r, _Out __result, + const _Tp& __value, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), __value, std::move(__proj)); + } + }; + + inline constexpr __remove_copy_fn remove_copy{}; + + struct __unique_fn + { + template _Sent, + typename _Proj = identity, + indirect_equivalence_relation< + projected<_Iter, _Proj>> _Comp = ranges::equal_to> + constexpr subrange<_Iter> + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + __first = ranges::adjacent_find(__first, __last, __comp, __proj); + if (__first == __last) + return {__first, __first}; + + auto __dest = __first; + ++__first; + while (++__first != __last) + if (!std::__invoke(__comp, + std::__invoke(__proj, *__dest), + std::__invoke(__proj, *__first))) + *++__dest = std::move(*__first); + return {++__dest, __first}; + } + + template, _Proj>> _Comp = ranges::equal_to> + requires permutable> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __unique_fn unique{}; + + template + using unique_copy_result = in_out_result<_Iter, _Out>; + + struct __unique_copy_fn + { + template _Sent, + weakly_incrementable _Out, typename _Proj = identity, + indirect_equivalence_relation< + projected<_Iter, _Proj>> _Comp = ranges::equal_to> + requires indirectly_copyable<_Iter, _Out> + && (forward_iterator<_Iter> + || (input_iterator<_Out> + && same_as, iter_value_t<_Out>>) + || indirectly_copyable_storable<_Iter, _Out>) + constexpr unique_copy_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return {std::move(__first), std::move(__result)}; + + // TODO: perform a closer comparison with reference implementations + if constexpr (forward_iterator<_Iter>) + { + auto __next = __first; + *__result = *__next; + while (++__next != __last) + if (!std::__invoke(__comp, + std::__invoke(__proj, *__first), + std::__invoke(__proj, *__next))) + { + __first = __next; + *++__result = *__first; + } + return {__next, std::move(++__result)}; + } + else if constexpr (input_iterator<_Out> + && same_as, iter_value_t<_Out>>) + { + *__result = *__first; + while (++__first != __last) + if (!std::__invoke(__comp, + std::__invoke(__proj, *__result), + std::__invoke(__proj, *__first))) + *++__result = *__first; + return {std::move(__first), std::move(++__result)}; + } + else // indirectly_copyable_storable<_Iter, _Out> + { + auto __value = *__first; + *__result = __value; + while (++__first != __last) + { + if (!(bool)std::__invoke(__comp, + std::__invoke(__proj, *__first), + std::__invoke(__proj, __value))) + { + __value = *__first; + *++__result = __value; + } + } + return {std::move(__first), std::move(++__result)}; + } + } + + template, _Proj>> _Comp = ranges::equal_to> + requires indirectly_copyable, _Out> + && (forward_iterator> + || (input_iterator<_Out> + && same_as, iter_value_t<_Out>>) + || indirectly_copyable_storable, _Out>) + constexpr unique_copy_result, _Out> + operator()(_Range&& __r, _Out __result, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __unique_copy_fn unique_copy{}; + + struct __reverse_fn + { + template _Sent> + requires permutable<_Iter> + constexpr _Iter + operator()(_Iter __first, _Sent __last) const + { + auto __i = ranges::next(__first, __last); + auto __tail = __i; + + if constexpr (random_access_iterator<_Iter>) + { + if (__first != __last) + { + --__tail; + while (__first < __tail) + { + ranges::iter_swap(__first, __tail); + ++__first; + --__tail; + } + } + return __i; + } + else + { + for (;;) + if (__first == __tail || __first == --__tail) + break; + else + { + ranges::iter_swap(__first, __tail); + ++__first; + } + return __i; + } + } + + template + requires permutable> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r) const + { + return (*this)(ranges::begin(__r), ranges::end(__r)); + } + }; + + inline constexpr __reverse_fn reverse{}; + + template + using reverse_copy_result = in_out_result<_Iter, _Out>; + + struct __reverse_copy_fn + { + template _Sent, + weakly_incrementable _Out> + requires indirectly_copyable<_Iter, _Out> + constexpr reverse_copy_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result) const + { + auto __i = ranges::next(__first, __last); + auto __tail = __i; + while (__first != __tail) + { + --__tail; + *__result = *__tail; + ++__result; + } + return {__i, __result}; + } + + template + requires indirectly_copyable, _Out> + constexpr reverse_copy_result, _Out> + operator()(_Range&& __r, _Out __result) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result)); + } + }; + + inline constexpr __reverse_copy_fn reverse_copy{}; + + struct __rotate_fn + { + template _Sent> + constexpr subrange<_Iter> + operator()(_Iter __first, _Iter __middle, _Sent __last) const + { + auto __lasti = ranges::next(__first, __last); + if (__first == __middle) + return {__lasti, __lasti}; + if (__last == __middle) + return {std::move(__first), std::move(__lasti)}; + + if constexpr (random_access_iterator<_Iter>) + { + auto __n = __lasti - __first; + auto __k = __middle - __first; + + if (__k == __n - __k) + { + ranges::swap_ranges(__first, __middle, __middle, __middle + __k); + return {std::move(__middle), std::move(__lasti)}; + } + + auto __p = __first; + auto __ret = __first + (__lasti - __middle); + + for (;;) + { + if (__k < __n - __k) + { + // TODO: is_pod is deprecated, but this condition is + // consistent with the STL implementation. + if constexpr (__is_pod(iter_value_t<_Iter>)) + if (__k == 1) + { + auto __t = std::move(*__p); + ranges::move(__p + 1, __p + __n, __p); + *(__p + __n - 1) = std::move(__t); + return {std::move(__ret), std::move(__lasti)}; + } + auto __q = __p + __k; + for (decltype(__n) __i = 0; __i < __n - __k; ++ __i) + { + ranges::iter_swap(__p, __q); + ++__p; + ++__q; + } + __n %= __k; + if (__n == 0) + return {std::move(__ret), std::move(__lasti)}; + ranges::swap(__n, __k); + __k = __n - __k; + } + else + { + __k = __n - __k; + // TODO: is_pod is deprecated, but this condition is + // consistent with the STL implementation. + if constexpr (__is_pod(iter_value_t<_Iter>)) + if (__k == 1) + { + auto __t = std::move(*(__p + __n - 1)); + ranges::move_backward(__p, __p + __n - 1, __p + __n); + *__p = std::move(__t); + return {std::move(__ret), std::move(__lasti)}; + } + auto __q = __p + __n; + __p = __q - __k; + for (decltype(__n) __i = 0; __i < __n - __k; ++ __i) + { + --__p; + --__q; + ranges::iter_swap(__p, __q); + } + __n %= __k; + if (__n == 0) + return {std::move(__ret), std::move(__lasti)}; + std::swap(__n, __k); + } + } + } + else if constexpr (bidirectional_iterator<_Iter>) + { + auto __tail = __lasti; + + ranges::reverse(__first, __middle); + ranges::reverse(__middle, __tail); + + while (__first != __middle && __middle != __tail) + { + ranges::iter_swap(__first, --__tail); + ++__first; + } + + if (__first == __middle) + { + ranges::reverse(__middle, __tail); + return {std::move(__tail), std::move(__lasti)}; + } + else + { + ranges::reverse(__first, __middle); + return {std::move(__first), std::move(__lasti)}; + } + } + else + { + auto __first2 = __middle; + do + { + ranges::iter_swap(__first, __first2); + ++__first; + ++__first2; + if (__first == __middle) + __middle = __first2; + } while (__first2 != __last); + + auto __ret = __first; + + __first2 = __middle; + + while (__first2 != __last) + { + ranges::iter_swap(__first, __first2); + ++__first; + ++__first2; + if (__first == __middle) + __middle = __first2; + else if (__first2 == __last) + __first2 = __middle; + } + return {std::move(__ret), std::move(__lasti)}; + } + } + + template + requires permutable> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, iterator_t<_Range> __middle) const + { + return (*this)(ranges::begin(__r), std::move(__middle), + ranges::end(__r)); + } + }; + + inline constexpr __rotate_fn rotate{}; + + template + using rotate_copy_result = in_out_result<_Iter, _Out>; + + struct __rotate_copy_fn + { + template _Sent, + weakly_incrementable _Out> + requires indirectly_copyable<_Iter, _Out> + constexpr rotate_copy_result<_Iter, _Out> + operator()(_Iter __first, _Iter __middle, _Sent __last, + _Out __result) const + { + auto __copy1 = ranges::copy(__middle, + std::move(__last), + std::move(__result)); + auto __copy2 = ranges::copy(std::move(__first), + std::move(__middle), + std::move(__copy1.out)); + return { std::move(__copy1.in), std::move(__copy2.out) }; + } + + template + requires indirectly_copyable, _Out> + constexpr rotate_copy_result, _Out> + operator()(_Range&& __r, iterator_t<_Range> __middle, _Out __result) const + { + return (*this)(ranges::begin(__r), std::move(__middle), + ranges::end(__r), std::move(__result)); + } + }; + + inline constexpr __rotate_copy_fn rotate_copy{}; + + struct __sample_fn + { + template _Sent, + weakly_incrementable _Out, typename _Gen> + requires (forward_iterator<_Iter> || random_access_iterator<_Out>) + && indirectly_copyable<_Iter, _Out> + && uniform_random_bit_generator> + _Out + operator()(_Iter __first, _Sent __last, _Out __out, + iter_difference_t<_Iter> __n, _Gen&& __g) const + { + if constexpr (forward_iterator<_Iter>) + { + // FIXME: Forwarding to std::sample here requires computing __lasti + // which may take linear time. + auto __lasti = ranges::next(__first, __last); + return std::sample(std::move(__first), std::move(__lasti), + std::move(__out), __n, std::forward<_Gen>(__g)); + } + else + { + using __distrib_type + = uniform_int_distribution>; + using __param_type = typename __distrib_type::param_type; + __distrib_type __d{}; + iter_difference_t<_Iter> __sample_sz = 0; + while (__first != __last && __sample_sz != __n) + { + __out[__sample_sz++] = *__first; + ++__first; + } + for (auto __pop_sz = __sample_sz; __first != __last; + ++__first, (void) ++__pop_sz) + { + const auto __k = __d(__g, __param_type{0, __pop_sz}); + if (__k < __n) + __out[__k] = *__first; + } + return __out + __sample_sz; + } + } + + template + requires (forward_range<_Range> || random_access_iterator<_Out>) + && indirectly_copyable, _Out> + && uniform_random_bit_generator> + _Out + operator()(_Range&& __r, _Out __out, + range_difference_t<_Range> __n, _Gen&& __g) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__out), __n, + std::forward<_Gen>(__g)); + } + }; + + inline constexpr __sample_fn sample{}; + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + struct __shuffle_fn + { + template _Sent, + typename _Gen> + requires permutable<_Iter> + && uniform_random_bit_generator> + _Iter + operator()(_Iter __first, _Sent __last, _Gen&& __g) const + { + auto __lasti = ranges::next(__first, __last); + std::shuffle(std::move(__first), __lasti, std::forward<_Gen>(__g)); + return __lasti; + } + + template + requires permutable> + && uniform_random_bit_generator> + borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Gen&& __g) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::forward<_Gen>(__g)); + } + }; + + inline constexpr __shuffle_fn shuffle{}; +#endif + + struct __push_heap_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::push_heap(__first, __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __push_heap_fn push_heap{}; + + struct __pop_heap_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::pop_heap(__first, __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __pop_heap_fn pop_heap{}; + + struct __make_heap_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::make_heap(__first, __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __make_heap_fn make_heap{}; + + struct __sort_heap_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::sort_heap(__first, __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __sort_heap_fn sort_heap{}; + + struct __is_heap_until_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + iter_difference_t<_Iter> __n = ranges::distance(__first, __last); + iter_difference_t<_Iter> __parent = 0, __child = 1; + for (; __child < __n; ++__child) + if (std::__invoke(__comp, + std::__invoke(__proj, *(__first + __parent)), + std::__invoke(__proj, *(__first + __child)))) + return __first + __child; + else if ((__child & 1) == 0) + ++__parent; + + return __first + __n; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __is_heap_until_fn is_heap_until{}; + + struct __is_heap_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr bool + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (__last + == ranges::is_heap_until(__first, __last, + std::move(__comp), + std::move(__proj))); + } + + template, _Proj>> + _Comp = ranges::less> + constexpr bool + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __is_heap_fn is_heap{}; + + struct __sort_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::sort(std::move(__first), __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __sort_fn sort{}; + + struct __stable_sort_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::stable_sort(std::move(__first), __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __stable_sort_fn stable_sort{}; + + struct __partial_sort_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Iter __middle, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __middle) + return ranges::next(__first, __last); + + ranges::make_heap(__first, __middle, __comp, __proj); + auto __i = __middle; + for (; __i != __last; ++__i) + if (std::__invoke(__comp, + std::__invoke(__proj, *__i), + std::__invoke(__proj, *__first))) + { + ranges::pop_heap(__first, __middle, __comp, __proj); + ranges::iter_swap(__middle-1, __i); + ranges::push_heap(__first, __middle, __comp, __proj); + } + ranges::sort_heap(__first, __middle, __comp, __proj); + + return __i; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, iterator_t<_Range> __middle, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), std::move(__middle), + ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __partial_sort_fn partial_sort{}; + + template + using partial_sort_copy_result = in_out_result<_Iter, _Out>; + + struct __partial_sort_copy_fn + { + template _Sent1, + random_access_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Comp = ranges::less, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_copyable<_Iter1, _Iter2> + && sortable<_Iter2, _Comp, _Proj2> + && indirect_strict_weak_order<_Comp, + projected<_Iter1, _Proj1>, + projected<_Iter2, _Proj2>> + constexpr partial_sort_copy_result<_Iter1, _Iter2> + operator()(_Iter1 __first, _Sent1 __last, + _Iter2 __result_first, _Sent2 __result_last, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + if (__result_first == __result_last) + { + // TODO: Eliminating the variable __lasti triggers an ICE. + auto __lasti = ranges::next(std::move(__first), + std::move(__last)); + return {std::move(__lasti), std::move(__result_first)}; + } + + auto __result_real_last = __result_first; + while (__first != __last && __result_real_last != __result_last) + { + *__result_real_last = *__first; + ++__result_real_last; + ++__first; + } + + ranges::make_heap(__result_first, __result_real_last, __comp, __proj2); + for (; __first != __last; ++__first) + if (std::__invoke(__comp, + std::__invoke(__proj1, *__first), + std::__invoke(__proj2, *__result_first))) + { + ranges::pop_heap(__result_first, __result_real_last, + __comp, __proj2); + *(__result_real_last-1) = *__first; + ranges::push_heap(__result_first, __result_real_last, + __comp, __proj2); + } + ranges::sort_heap(__result_first, __result_real_last, __comp, __proj2); + + return {std::move(__first), std::move(__result_real_last)}; + } + + template + requires indirectly_copyable, iterator_t<_Range2>> + && sortable, _Comp, _Proj2> + && indirect_strict_weak_order<_Comp, + projected, _Proj1>, + projected, _Proj2>> + constexpr partial_sort_copy_result, + borrowed_iterator_t<_Range2>> + operator()(_Range1&& __r, _Range2&& __out, _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + ranges::begin(__out), ranges::end(__out), + std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __partial_sort_copy_fn partial_sort_copy{}; + + struct __is_sorted_until_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return __first; + + auto __next = __first; + for (++__next; __next != __last; __first = __next, (void)++__next) + if (std::__invoke(__comp, + std::__invoke(__proj, *__next), + std::__invoke(__proj, *__first))) + return __next; + return __next; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __is_sorted_until_fn is_sorted_until{}; + + struct __is_sorted_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr bool + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return true; + + auto __next = __first; + for (++__next; __next != __last; __first = __next, (void)++__next) + if (std::__invoke(__comp, + std::__invoke(__proj, *__next), + std::__invoke(__proj, *__first))) + return false; + return true; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr bool + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __is_sorted_fn is_sorted{}; + + struct __nth_element_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr _Iter + operator()(_Iter __first, _Iter __nth, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::nth_element(std::move(__first), std::move(__nth), __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, iterator_t<_Range> __nth, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), std::move(__nth), + ranges::end(__r), std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __nth_element_fn nth_element{}; + + struct __lower_bound_fn + { + template _Sent, + typename _Tp, typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __len = ranges::distance(__first, __last); + + while (__len > 0) + { + auto __half = __len / 2; + auto __middle = __first; + ranges::advance(__middle, __half); + if (std::__invoke(__comp, std::__invoke(__proj, *__middle), __value)) + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + else + __len = __half; + } + return __first; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, + const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __lower_bound_fn lower_bound{}; + + struct __upper_bound_fn + { + template _Sent, + typename _Tp, typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __len = ranges::distance(__first, __last); + + while (__len > 0) + { + auto __half = __len / 2; + auto __middle = __first; + ranges::advance(__middle, __half); + if (std::__invoke(__comp, __value, std::__invoke(__proj, *__middle))) + __len = __half; + else + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + } + return __first; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, + const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __upper_bound_fn upper_bound{}; + + struct __equal_range_fn + { + template _Sent, + typename _Tp, typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr subrange<_Iter> + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __len = ranges::distance(__first, __last); + + while (__len > 0) + { + auto __half = __len / 2; + auto __middle = __first; + ranges::advance(__middle, __half); + if (std::__invoke(__comp, + std::__invoke(__proj, *__middle), + __value)) + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + else if (std::__invoke(__comp, + __value, + std::__invoke(__proj, *__middle))) + __len = __half; + else + { + auto __left + = ranges::lower_bound(__first, __middle, + __value, __comp, __proj); + ranges::advance(__first, __len); + auto __right + = ranges::upper_bound(++__middle, __first, + __value, __comp, __proj); + return {__left, __right}; + } + } + return {__first, __first}; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, const _Tp& __value, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __equal_range_fn equal_range{}; + + struct __binary_search_fn + { + template _Sent, + typename _Tp, typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr bool + operator()(_Iter __first, _Sent __last, + const _Tp& __value, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __i = ranges::lower_bound(__first, __last, __value, __comp, __proj); + if (__i == __last) + return false; + return !(bool)std::__invoke(__comp, __value, + std::__invoke(__proj, *__i)); + } + + template, _Proj>> + _Comp = ranges::less> + constexpr bool + operator()(_Range&& __r, const _Tp& __value, _Comp __comp = {}, + _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + __value, std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __binary_search_fn binary_search{}; + + struct __is_partitioned_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr bool + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + __first = ranges::find_if_not(std::move(__first), __last, + __pred, __proj); + if (__first == __last) + return true; + ++__first; + return ranges::none_of(std::move(__first), std::move(__last), + std::move(__pred), std::move(__proj)); + } + + template, _Proj>> + _Pred> + constexpr bool + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __is_partitioned_fn is_partitioned{}; + + struct __partition_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr subrange<_Iter> + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + if constexpr (bidirectional_iterator<_Iter>) + { + auto __lasti = ranges::next(__first, __last); + auto __tail = __lasti; + for (;;) + { + for (;;) + if (__first == __tail) + return {std::move(__first), std::move(__lasti)}; + else if (std::__invoke(__pred, + std::__invoke(__proj, *__first))) + ++__first; + else + break; + --__tail; + for (;;) + if (__first == __tail) + return {std::move(__first), std::move(__lasti)}; + else if (!(bool)std::__invoke(__pred, + std::__invoke(__proj, *__tail))) + --__tail; + else + break; + ranges::iter_swap(__first, __tail); + ++__first; + } + } + else + { + if (__first == __last) + return {std::move(__first), std::move(__first)}; + + while (std::__invoke(__pred, std::__invoke(__proj, *__first))) + if (++__first == __last) + return {std::move(__first), std::move(__first)}; + + auto __next = __first; + while (++__next != __last) + if (std::__invoke(__pred, std::__invoke(__proj, *__next))) + { + ranges::iter_swap(__first, __next); + ++__first; + } + + return {std::move(__first), std::move(__next)}; + } + } + + template, _Proj>> + _Pred> + requires permutable> + constexpr borrowed_subrange_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __partition_fn partition{}; + + struct __stable_partition_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + requires permutable<_Iter> + subrange<_Iter> + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + auto __middle + = std::stable_partition(std::move(__first), __lasti, + __detail::__make_pred_proj(__pred, __proj)); + return {std::move(__middle), std::move(__lasti)}; + } + + template, _Proj>> + _Pred> + requires permutable> + borrowed_subrange_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __stable_partition_fn stable_partition{}; + + template + struct in_out_out_result + { + [[no_unique_address]] _Iter in; + [[no_unique_address]] _Out1 out1; + [[no_unique_address]] _Out2 out2; + + template + requires convertible_to + && convertible_to + && convertible_to + constexpr + operator in_out_out_result<_IIter, _OOut1, _OOut2>() const & + { return {in, out1, out2}; } + + template + requires convertible_to<_Iter, _IIter> + && convertible_to<_Out1, _OOut1> + && convertible_to<_Out2, _OOut2> + constexpr + operator in_out_out_result<_IIter, _OOut1, _OOut2>() && + { return {std::move(in), std::move(out1), std::move(out2)}; } + }; + + template + using partition_copy_result = in_out_out_result<_Iter, _Out1, _Out2>; + + struct __partition_copy_fn + { + template _Sent, + weakly_incrementable _Out1, weakly_incrementable _O2, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + requires indirectly_copyable<_Iter, _Out1> + && indirectly_copyable<_Iter, _O2> + constexpr partition_copy_result<_Iter, _Out1, _O2> + operator()(_Iter __first, _Sent __last, + _Out1 __out_true, _O2 __out_false, + _Pred __pred, _Proj __proj = {}) const + { + for (; __first != __last; ++__first) + if (std::__invoke(__pred, std::__invoke(__proj, *__first))) + { + *__out_true = *__first; + ++__out_true; + } + else + { + *__out_false = *__first; + ++__out_false; + } + + return {std::move(__first), + std::move(__out_true), std::move(__out_false)}; + } + + template, _Proj>> + _Pred> + requires indirectly_copyable, _Out1> + && indirectly_copyable, _O2> + constexpr partition_copy_result, _Out1, _O2> + operator()(_Range&& __r, _Out1 out_true, _O2 out_false, + _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(out_true), std::move(out_false), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __partition_copy_fn partition_copy{}; + + struct __partition_point_fn + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Pred __pred, _Proj __proj = {}) const + { + auto __len = ranges::distance(__first, __last); + + while (__len > 0) + { + auto __half = __len / 2; + auto __middle = __first; + ranges::advance(__middle, __half); + if (std::__invoke(__pred, std::__invoke(__proj, *__middle))) + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + else + __len = __half; + } + return __first; + } + + template, _Proj>> + _Pred> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Pred __pred, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__pred), std::move(__proj)); + } + }; + + inline constexpr __partition_point_fn partition_point{}; + + template + using merge_result = in_in_out_result<_Iter1, _Iter2, _Out>; + + struct __merge_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + weakly_incrementable _Out, typename _Comp = ranges::less, + typename _Proj1 = identity, typename _Proj2 = identity> + requires mergeable<_Iter1, _Iter2, _Out, _Comp, _Proj1, _Proj2> + constexpr merge_result<_Iter1, _Iter2, _Out> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2) + { + if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + { + *__result = *__first2; + ++__first2; + } + else + { + *__result = *__first1; + ++__first1; + } + ++__result; + } + auto __copy1 = ranges::copy(std::move(__first1), std::move(__last1), + std::move(__result)); + auto __copy2 = ranges::copy(std::move(__first2), std::move(__last2), + std::move(__copy1.out)); + return { std::move(__copy1.in), std::move(__copy2.in), + std::move(__copy2.out) }; + } + + template + requires mergeable, iterator_t<_Range2>, _Out, + _Comp, _Proj1, _Proj2> + constexpr merge_result, + borrowed_iterator_t<_Range2>, + _Out> + operator()(_Range1&& __r1, _Range2&& __r2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__result), std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __merge_fn merge{}; + + struct __inplace_merge_fn + { + template _Sent, + typename _Comp = ranges::less, + typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + _Iter + operator()(_Iter __first, _Iter __middle, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + auto __lasti = ranges::next(__first, __last); + std::inplace_merge(std::move(__first), std::move(__middle), __lasti, + __detail::__make_comp_proj(__comp, __proj)); + return __lasti; + } + + template + requires sortable, _Comp, _Proj> + borrowed_iterator_t<_Range> + operator()(_Range&& __r, iterator_t<_Range> __middle, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), std::move(__middle), + ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __inplace_merge_fn inplace_merge{}; + + struct __includes_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Proj1 = identity, typename _Proj2 = identity, + indirect_strict_weak_order, + projected<_Iter2, _Proj2>> + _Comp = ranges::less> + constexpr bool + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2) + if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + return false; + else if (std::__invoke(__comp, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + ++__first1; + else + { + ++__first1; + ++__first2; + } + + return __first2 == __last2; + } + + template, _Proj1>, + projected, _Proj2>> + _Comp = ranges::less> + constexpr bool + operator()(_Range1&& __r1, _Range2&& __r2, _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __includes_fn includes{}; + + template + using set_union_result = in_in_out_result<_Iter1, _Iter2, _Out>; + + struct __set_union_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + weakly_incrementable _Out, typename _Comp = ranges::less, + typename _Proj1 = identity, typename _Proj2 = identity> + requires mergeable<_Iter1, _Iter2, _Out, _Comp, _Proj1, _Proj2> + constexpr set_union_result<_Iter1, _Iter2, _Out> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, + _Out __result, _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2) + { + if (std::__invoke(__comp, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + { + *__result = *__first1; + ++__first1; + } + else if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + { + *__result = *__first2; + ++__first2; + } + else + { + *__result = *__first1; + ++__first1; + ++__first2; + } + ++__result; + } + auto __copy1 = ranges::copy(std::move(__first1), std::move(__last1), + std::move(__result)); + auto __copy2 = ranges::copy(std::move(__first2), std::move(__last2), + std::move(__copy1.out)); + return {std::move(__copy1.in), std::move(__copy2.in), + std::move(__copy2.out)}; + } + + template + requires mergeable, iterator_t<_Range2>, _Out, + _Comp, _Proj1, _Proj2> + constexpr set_union_result, + borrowed_iterator_t<_Range2>, _Out> + operator()(_Range1&& __r1, _Range2&& __r2, + _Out __result, _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__result), std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __set_union_fn set_union{}; + + template + using set_intersection_result = in_in_out_result<_Iter1, _Iter2, _Out>; + + struct __set_intersection_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + weakly_incrementable _Out, typename _Comp = ranges::less, + typename _Proj1 = identity, typename _Proj2 = identity> + requires mergeable<_Iter1, _Iter2, _Out, _Comp, _Proj1, _Proj2> + constexpr set_intersection_result<_Iter1, _Iter2, _Out> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2) + if (std::__invoke(__comp, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + ++__first1; + else if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + ++__first2; + else + { + *__result = *__first1; + ++__first1; + ++__first2; + ++__result; + } + // TODO: Eliminating these variables triggers an ICE. + auto __last1i = ranges::next(std::move(__first1), std::move(__last1)); + auto __last2i = ranges::next(std::move(__first2), std::move(__last2)); + return {std::move(__last1i), std::move(__last2i), std::move(__result)}; + } + + template + requires mergeable, iterator_t<_Range2>, _Out, + _Comp, _Proj1, _Proj2> + constexpr set_intersection_result, + borrowed_iterator_t<_Range2>, _Out> + operator()(_Range1&& __r1, _Range2&& __r2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__result), std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __set_intersection_fn set_intersection{}; + + template + using set_difference_result = in_out_result<_Iter, _Out>; + + struct __set_difference_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + weakly_incrementable _Out, typename _Comp = ranges::less, + typename _Proj1 = identity, typename _Proj2 = identity> + requires mergeable<_Iter1, _Iter2, _Out, _Comp, _Proj1, _Proj2> + constexpr set_difference_result<_Iter1, _Out> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2) + if (std::__invoke(__comp, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + { + *__result = *__first1; + ++__first1; + ++__result; + } + else if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + ++__first2; + else + { + ++__first1; + ++__first2; + } + return ranges::copy(std::move(__first1), std::move(__last1), + std::move(__result)); + } + + template + requires mergeable, iterator_t<_Range2>, _Out, + _Comp, _Proj1, _Proj2> + constexpr set_difference_result, _Out> + operator()(_Range1&& __r1, _Range2&& __r2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__result), std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __set_difference_fn set_difference{}; + + template + using set_symmetric_difference_result + = in_in_out_result<_Iter1, _Iter2, _Out>; + + struct __set_symmetric_difference_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + weakly_incrementable _Out, typename _Comp = ranges::less, + typename _Proj1 = identity, typename _Proj2 = identity> + requires mergeable<_Iter1, _Iter2, _Out, _Comp, _Proj1, _Proj2> + constexpr set_symmetric_difference_result<_Iter1, _Iter2, _Out> + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, + _Out __result, _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + while (__first1 != __last1 && __first2 != __last2) + if (std::__invoke(__comp, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + { + *__result = *__first1; + ++__first1; + ++__result; + } + else if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + { + *__result = *__first2; + ++__first2; + ++__result; + } + else + { + ++__first1; + ++__first2; + } + auto __copy1 = ranges::copy(std::move(__first1), std::move(__last1), + std::move(__result)); + auto __copy2 = ranges::copy(std::move(__first2), std::move(__last2), + std::move(__copy1.out)); + return {std::move(__copy1.in), std::move(__copy2.in), + std::move(__copy2.out)}; + } + + template + requires mergeable, iterator_t<_Range2>, _Out, + _Comp, _Proj1, _Proj2> + constexpr set_symmetric_difference_result, + borrowed_iterator_t<_Range2>, + _Out> + operator()(_Range1&& __r1, _Range2&& __r2, _Out __result, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__result), std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __set_symmetric_difference_fn set_symmetric_difference{}; + + struct __min_fn + { + template> + _Comp = ranges::less> + constexpr const _Tp& + operator()(const _Tp& __a, const _Tp& __b, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (std::__invoke(std::move(__comp), + std::__invoke(__proj, __b), + std::__invoke(__proj, __a))) + return __b; + else + return __a; + } + + template, _Proj>> + _Comp = ranges::less> + requires indirectly_copyable_storable, + range_value_t<_Range>*> + constexpr range_value_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __first = ranges::begin(__r); + auto __last = ranges::end(__r); + __glibcxx_assert(__first != __last); + auto __result = *__first; + while (++__first != __last) + { + auto __tmp = *__first; + if (std::__invoke(__comp, + std::__invoke(__proj, __tmp), + std::__invoke(__proj, __result))) + __result = std::move(__tmp); + } + return __result; + } + + template> + _Comp = ranges::less> + constexpr _Tp + operator()(initializer_list<_Tp> __r, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::subrange(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __min_fn min{}; + + struct __max_fn + { + template> + _Comp = ranges::less> + constexpr const _Tp& + operator()(const _Tp& __a, const _Tp& __b, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (std::__invoke(std::move(__comp), + std::__invoke(__proj, __a), + std::__invoke(__proj, __b))) + return __b; + else + return __a; + } + + template, _Proj>> + _Comp = ranges::less> + requires indirectly_copyable_storable, + range_value_t<_Range>*> + constexpr range_value_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __first = ranges::begin(__r); + auto __last = ranges::end(__r); + __glibcxx_assert(__first != __last); + auto __result = *__first; + while (++__first != __last) + { + auto __tmp = *__first; + if (std::__invoke(__comp, + std::__invoke(__proj, __result), + std::__invoke(__proj, __tmp))) + __result = std::move(__tmp); + } + return __result; + } + + template> + _Comp = ranges::less> + constexpr _Tp + operator()(initializer_list<_Tp> __r, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::subrange(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __max_fn max{}; + + struct __clamp_fn + { + template> _Comp + = ranges::less> + constexpr const _Tp& + operator()(const _Tp& __val, const _Tp& __lo, const _Tp& __hi, + _Comp __comp = {}, _Proj __proj = {}) const + { + __glibcxx_assert(!(std::__invoke(__comp, + std::__invoke(__proj, __hi), + std::__invoke(__proj, __lo)))); + auto&& __proj_val = std::__invoke(__proj, __val); + if (std::__invoke(__comp, __proj_val, std::__invoke(__proj, __lo))) + return __lo; + else if (std::__invoke(__comp, std::__invoke(__proj, __hi), __proj_val)) + return __hi; + else + return __val; + } + }; + + inline constexpr __clamp_fn clamp{}; + + template + struct min_max_result + { + [[no_unique_address]] _Tp min; + [[no_unique_address]] _Tp max; + + template + requires convertible_to + constexpr + operator min_max_result<_Tp2>() const & + { return {min, max}; } + + template + requires convertible_to<_Tp, _Tp2> + constexpr + operator min_max_result<_Tp2>() && + { return {std::move(min), std::move(max)}; } + }; + + template + using minmax_result = min_max_result<_Tp>; + + struct __minmax_fn + { + template> + _Comp = ranges::less> + constexpr minmax_result + operator()(const _Tp& __a, const _Tp& __b, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (std::__invoke(std::move(__comp), + std::__invoke(__proj, __b), + std::__invoke(__proj, __a))) + return {__b, __a}; + else + return {__a, __b}; + } + + template, _Proj>> + _Comp = ranges::less> + requires indirectly_copyable_storable, + range_value_t<_Range>*> + constexpr minmax_result> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + auto __first = ranges::begin(__r); + auto __last = ranges::end(__r); + __glibcxx_assert(__first != __last); + minmax_result> __result = {*__first, *__first}; + while (++__first != __last) + { + auto __tmp = *__first; + if (std::__invoke(__comp, + std::__invoke(__proj, __tmp), + std::__invoke(__proj, __result.min))) + __result.min = std::move(__tmp); + if (!(bool)std::__invoke(__comp, + std::__invoke(__proj, __tmp), + std::__invoke(__proj, __result.max))) + __result.max = std::move(__tmp); + } + return __result; + } + + template> + _Comp = ranges::less> + constexpr minmax_result<_Tp> + operator()(initializer_list<_Tp> __r, + _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::subrange(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __minmax_fn minmax{}; + + struct __min_element_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return __first; + + auto __i = __first; + while (++__i != __last) + { + if (std::__invoke(__comp, + std::__invoke(__proj, *__i), + std::__invoke(__proj, *__first))) + __first = __i; + } + return __first; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __min_element_fn min_element{}; + + struct __max_element_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr _Iter + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return __first; + + auto __i = __first; + while (++__i != __last) + { + if (std::__invoke(__comp, + std::__invoke(__proj, *__first), + std::__invoke(__proj, *__i))) + __first = __i; + } + return __first; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __max_element_fn max_element{}; + + template + using minmax_element_result = min_max_result<_Iter>; + + struct __minmax_element_fn + { + template _Sent, + typename _Proj = identity, + indirect_strict_weak_order> + _Comp = ranges::less> + constexpr minmax_element_result<_Iter> + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return {__first, __first}; + + minmax_element_result<_Iter> __result = {__first, __first}; + auto __i = __first; + while (++__i != __last) + { + if (std::__invoke(__comp, + std::__invoke(__proj, *__i), + std::__invoke(__proj, *__result.min))) + __result.min = __i; + if (!(bool)std::__invoke(__comp, + std::__invoke(__proj, *__i), + std::__invoke(__proj, *__result.max))) + __result.max = __i; + } + return __result; + } + + template, _Proj>> + _Comp = ranges::less> + constexpr minmax_element_result> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __minmax_element_fn minmax_element{}; + + struct __lexicographical_compare_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Proj1 = identity, typename _Proj2 = identity, + indirect_strict_weak_order, + projected<_Iter2, _Proj2>> + _Comp = ranges::less> + constexpr bool + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, + _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + if constexpr (__detail::__is_normal_iterator<_Iter1> + && same_as<_Iter1, _Sent1>) + return (*this)(__first1.base(), __last1.base(), + std::move(__first2), std::move(__last2), + std::move(__comp), + std::move(__proj1), std::move(__proj2)); + else if constexpr (__detail::__is_normal_iterator<_Iter2> + && same_as<_Iter2, _Sent2>) + return (*this)(std::move(__first1), std::move(__last1), + __first2.base(), __last2.base(), + std::move(__comp), + std::move(__proj1), std::move(__proj2)); + else + { + constexpr bool __sized_iters + = (sized_sentinel_for<_Sent1, _Iter1> + && sized_sentinel_for<_Sent2, _Iter2>); + if constexpr (__sized_iters) + { + using _ValueType1 = iter_value_t<_Iter1>; + using _ValueType2 = iter_value_t<_Iter2>; + // This condition is consistent with the one in + // __lexicographical_compare_aux in . + constexpr bool __use_memcmp + = (__is_memcmp_ordered_with<_ValueType1, _ValueType2>::__value + && __ptr_to_nonvolatile<_Iter1> + && __ptr_to_nonvolatile<_Iter2> + && (is_same_v<_Comp, ranges::less> + || is_same_v<_Comp, ranges::greater>) + && is_same_v<_Proj1, identity> + && is_same_v<_Proj2, identity>); + if constexpr (__use_memcmp) + { + const auto __d1 = __last1 - __first1; + const auto __d2 = __last2 - __first2; + + if (const auto __len = std::min(__d1, __d2)) + { + const auto __c + = std::__memcmp(__first1, __first2, __len); + if constexpr (is_same_v<_Comp, ranges::less>) + { + if (__c < 0) + return true; + if (__c > 0) + return false; + } + else if constexpr (is_same_v<_Comp, ranges::greater>) + { + if (__c > 0) + return true; + if (__c < 0) + return false; + } + } + return __d1 < __d2; + } + } + + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void) ++__first2) + { + if (std::__invoke(__comp, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + return true; + if (std::__invoke(__comp, + std::__invoke(__proj2, *__first2), + std::__invoke(__proj1, *__first1))) + return false; + } + return __first1 == __last1 && __first2 != __last2; + } + } + + template, _Proj1>, + projected, _Proj2>> + _Comp = ranges::less> + constexpr bool + operator()(_Range1&& __r1, _Range2&& __r2, _Comp __comp = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__comp), + std::move(__proj1), std::move(__proj2)); + } + + private: + template> + static constexpr bool __ptr_to_nonvolatile + = is_pointer_v<_Iter> && !is_volatile_v>; + }; + + inline constexpr __lexicographical_compare_fn lexicographical_compare; + + template + struct in_found_result + { + [[no_unique_address]] _Iter in; + bool found; + + template + requires convertible_to + constexpr + operator in_found_result<_Iter2>() const & + { return {in, found}; } + + template + requires convertible_to<_Iter, _Iter2> + constexpr + operator in_found_result<_Iter2>() && + { return {std::move(in), found}; } + }; + + template + using next_permutation_result = in_found_result<_Iter>; + + struct __next_permutation_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr next_permutation_result<_Iter> + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return {std::move(__first), false}; + + auto __i = __first; + ++__i; + if (__i == __last) + return {std::move(__i), false}; + + auto __lasti = ranges::next(__first, __last); + __i = __lasti; + --__i; + + for (;;) + { + auto __ii = __i; + --__i; + if (std::__invoke(__comp, + std::__invoke(__proj, *__i), + std::__invoke(__proj, *__ii))) + { + auto __j = __lasti; + while (!(bool)std::__invoke(__comp, + std::__invoke(__proj, *__i), + std::__invoke(__proj, *--__j))) + ; + ranges::iter_swap(__i, __j); + ranges::reverse(__ii, __last); + return {std::move(__lasti), true}; + } + if (__i == __first) + { + ranges::reverse(__first, __last); + return {std::move(__lasti), false}; + } + } + } + + template + requires sortable, _Comp, _Proj> + constexpr next_permutation_result> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __next_permutation_fn next_permutation{}; + + template + using prev_permutation_result = in_found_result<_Iter>; + + struct __prev_permutation_fn + { + template _Sent, + typename _Comp = ranges::less, typename _Proj = identity> + requires sortable<_Iter, _Comp, _Proj> + constexpr prev_permutation_result<_Iter> + operator()(_Iter __first, _Sent __last, + _Comp __comp = {}, _Proj __proj = {}) const + { + if (__first == __last) + return {std::move(__first), false}; + + auto __i = __first; + ++__i; + if (__i == __last) + return {std::move(__i), false}; + + auto __lasti = ranges::next(__first, __last); + __i = __lasti; + --__i; + + for (;;) + { + auto __ii = __i; + --__i; + if (std::__invoke(__comp, + std::__invoke(__proj, *__ii), + std::__invoke(__proj, *__i))) + { + auto __j = __lasti; + while (!(bool)std::__invoke(__comp, + std::__invoke(__proj, *--__j), + std::__invoke(__proj, *__i))) + ; + ranges::iter_swap(__i, __j); + ranges::reverse(__ii, __last); + return {std::move(__lasti), true}; + } + if (__i == __first) + { + ranges::reverse(__first, __last); + return {std::move(__lasti), false}; + } + } + } + + template + requires sortable, _Comp, _Proj> + constexpr prev_permutation_result> + operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__comp), std::move(__proj)); + } + }; + + inline constexpr __prev_permutation_fn prev_permutation{}; + +} // namespace ranges + +#define __cpp_lib_shift 201806L + template + constexpr _ForwardIterator + shift_left(_ForwardIterator __first, _ForwardIterator __last, + typename iterator_traits<_ForwardIterator>::difference_type __n) + { + __glibcxx_assert(__n >= 0); + if (__n == 0) + return __last; + + auto __mid = ranges::next(__first, __n, __last); + if (__mid == __last) + return __first; + return std::move(std::move(__mid), std::move(__last), std::move(__first)); + } + + template + constexpr _ForwardIterator + shift_right(_ForwardIterator __first, _ForwardIterator __last, + typename iterator_traits<_ForwardIterator>::difference_type __n) + { + __glibcxx_assert(__n >= 0); + if (__n == 0) + return __first; + + using _Cat + = typename iterator_traits<_ForwardIterator>::iterator_category; + if constexpr (derived_from<_Cat, bidirectional_iterator_tag>) + { + auto __mid = ranges::next(__last, -__n, __first); + if (__mid == __first) + return __last; + + return std::move_backward(std::move(__first), std::move(__mid), + std::move(__last)); + } + else + { + auto __result = ranges::next(__first, __n, __last); + if (__result == __last) + return __last; + + auto __dest_head = __first, __dest_tail = __result; + while (__dest_head != __result) + { + if (__dest_tail == __last) + { + // If we get here, then we must have + // 2*n >= distance(__first, __last) + // i.e. we are shifting out at least half of the range. In + // this case we can safely perform the shift with a single + // move. + std::move(std::move(__first), std::move(__dest_head), + std::move(__result)); + return __result; + } + ++__dest_head; + ++__dest_tail; + } + + for (;;) + { + // At the start of each iteration of this outer loop, the range + // [__first, __result) contains those elements that after shifting + // the whole range right by __n, should end up in + // [__dest_head, __dest_tail) in order. + + // The below inner loop swaps the elements of [__first, __result) + // and [__dest_head, __dest_tail), while simultaneously shifting + // the latter range by __n. + auto __cursor = __first; + while (__cursor != __result) + { + if (__dest_tail == __last) + { + // At this point the ranges [__first, result) and + // [__dest_head, dest_tail) are disjoint, so we can safely + // move the remaining elements. + __dest_head = std::move(__cursor, __result, + std::move(__dest_head)); + std::move(std::move(__first), std::move(__cursor), + std::move(__dest_head)); + return __result; + } + std::iter_swap(__cursor, __dest_head); + ++__dest_head; + ++__dest_tail; + ++__cursor; + } + } + } + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // concepts +#endif // C++20 +#endif // _RANGES_ALGO_H diff --git a/resources/sources/avr-libstdcpp/include/bits/ranges_algobase.h b/resources/sources/avr-libstdcpp/include/bits/ranges_algobase.h new file mode 100644 index 000000000..618bc7d10 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/ranges_algobase.h @@ -0,0 +1,597 @@ +// Core algorithmic facilities -*- C++ -*- + +// Copyright (C) 2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/ranges_algobase.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{algorithm} + */ + +#ifndef _RANGES_ALGOBASE_H +#define _RANGES_ALGOBASE_H 1 + +#if __cplusplus > 201703L + +#include +#include +// #include +#include +#include +#include // __is_byte + +#if __cpp_lib_concepts +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +namespace ranges +{ + namespace __detail + { + template + constexpr inline bool __is_normal_iterator = false; + + template + constexpr inline bool + __is_normal_iterator<__gnu_cxx::__normal_iterator<_Iterator, + _Container>> = true; + + template + constexpr inline bool __is_reverse_iterator = false; + + template + constexpr inline bool + __is_reverse_iterator> = true; + + template + constexpr inline bool __is_move_iterator = false; + + template + constexpr inline bool + __is_move_iterator> = true; + } // namespace __detail + + struct __equal_fn + { + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Pred = ranges::equal_to, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2> + constexpr bool + operator()(_Iter1 __first1, _Sent1 __last1, + _Iter2 __first2, _Sent2 __last2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + // TODO: implement more specializations to at least have parity with + // std::equal. + if constexpr (__detail::__is_normal_iterator<_Iter1> + && same_as<_Iter1, _Sent1>) + return (*this)(__first1.base(), __last1.base(), + std::move(__first2), std::move(__last2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + else if constexpr (__detail::__is_normal_iterator<_Iter2> + && same_as<_Iter2, _Sent2>) + return (*this)(std::move(__first1), std::move(__last1), + __first2.base(), __last2.base(), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + else if constexpr (sized_sentinel_for<_Sent1, _Iter1> + && sized_sentinel_for<_Sent2, _Iter2>) + { + auto __d1 = ranges::distance(__first1, __last1); + auto __d2 = ranges::distance(__first2, __last2); + if (__d1 != __d2) + return false; + + using _ValueType1 = iter_value_t<_Iter1>; + using _ValueType2 = iter_value_t<_Iter2>; + constexpr bool __use_memcmp + = ((is_integral_v<_ValueType1> || is_pointer_v<_ValueType1>) + && __memcmpable<_Iter1, _Iter2>::__value + && is_same_v<_Pred, ranges::equal_to> + && is_same_v<_Proj1, identity> + && is_same_v<_Proj2, identity>); + if constexpr (__use_memcmp) + { + if (const size_t __len = (__last1 - __first1)) + return !std::__memcmp(__first1, __first2, __len); + return true; + } + else + { + for (; __first1 != __last1; ++__first1, (void)++__first2) + if (!(bool)std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + return false; + return true; + } + } + else + { + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + if (!(bool)std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + return false; + return __first1 == __last1 && __first2 == __last2; + } + } + + template + requires indirectly_comparable, iterator_t<_Range2>, + _Pred, _Proj1, _Proj2> + constexpr bool + operator()(_Range1&& __r1, _Range2&& __r2, _Pred __pred = {}, + _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const + { + return (*this)(ranges::begin(__r1), ranges::end(__r1), + ranges::begin(__r2), ranges::end(__r2), + std::move(__pred), + std::move(__proj1), std::move(__proj2)); + } + }; + + inline constexpr __equal_fn equal{}; + + template + struct in_out_result + { + [[no_unique_address]] _Iter in; + [[no_unique_address]] _Out out; + + template + requires convertible_to + && convertible_to + constexpr + operator in_out_result<_Iter2, _Out2>() const & + { return {in, out}; } + + template + requires convertible_to<_Iter, _Iter2> + && convertible_to<_Out, _Out2> + constexpr + operator in_out_result<_Iter2, _Out2>() && + { return {std::move(in), std::move(out)}; } + }; + + template + using copy_result = in_out_result<_Iter, _Out>; + + template + using move_result = in_out_result<_Iter, _Out>; + + template + using move_backward_result = in_out_result<_Iter1, _Iter2>; + + template + using copy_backward_result = in_out_result<_Iter1, _Iter2>; + + template _Sent, + bidirectional_iterator _Out> + requires (_IsMove + ? indirectly_movable<_Iter, _Out> + : indirectly_copyable<_Iter, _Out>) + constexpr conditional_t<_IsMove, + move_backward_result<_Iter, _Out>, + copy_backward_result<_Iter, _Out>> + __copy_or_move_backward(_Iter __first, _Sent __last, _Out __result); + + template _Sent, + weakly_incrementable _Out> + requires (_IsMove + ? indirectly_movable<_Iter, _Out> + : indirectly_copyable<_Iter, _Out>) + constexpr conditional_t<_IsMove, + move_result<_Iter, _Out>, + copy_result<_Iter, _Out>> + __copy_or_move(_Iter __first, _Sent __last, _Out __result) + { + // TODO: implement more specializations to be at least on par with + // std::copy/std::move. + using __detail::__is_move_iterator; + using __detail::__is_reverse_iterator; + using __detail::__is_normal_iterator; + if constexpr (__is_move_iterator<_Iter> && same_as<_Iter, _Sent>) + { + auto [__in, __out] + = ranges::__copy_or_move(std::move(__first).base(), + std::move(__last).base(), + std::move(__result)); + return {move_iterator{std::move(__in)}, std::move(__out)}; + } + else if constexpr (__is_reverse_iterator<_Iter> && same_as<_Iter, _Sent> + && __is_reverse_iterator<_Out>) + { + auto [__in,__out] + = ranges::__copy_or_move_backward<_IsMove>(std::move(__last).base(), + std::move(__first).base(), + std::move(__result).base()); + return {reverse_iterator{std::move(__in)}, + reverse_iterator{std::move(__out)}}; + } + else if constexpr (__is_normal_iterator<_Iter> && same_as<_Iter, _Sent>) + { + auto [__in,__out] + = ranges::__copy_or_move<_IsMove>(__first.base(), __last.base(), + __result); + return {decltype(__first){__in}, std::move(__out)}; + } + else if constexpr (__is_normal_iterator<_Out>) + { + auto [__in,__out] + = ranges::__copy_or_move<_IsMove>(__first, __last, __result.base()); + return {std::move(__in), decltype(__result){__out}}; + } + else if constexpr (sized_sentinel_for<_Sent, _Iter>) + { +#ifdef __cpp_lib_is_constant_evaluated + if (!std::is_constant_evaluated()) +#endif + { + if constexpr (__memcpyable<_Iter, _Out>::__value) + { + using _ValueTypeI = iter_value_t<_Iter>; + static_assert(_IsMove + ? is_move_assignable_v<_ValueTypeI> + : is_copy_assignable_v<_ValueTypeI>); + auto __num = __last - __first; + if (__num) + __builtin_memmove(__result, __first, + sizeof(_ValueTypeI) * __num); + return {__first + __num, __result + __num}; + } + } + + for (auto __n = __last - __first; __n > 0; --__n) + { + if constexpr (_IsMove) + *__result = std::move(*__first); + else + *__result = *__first; + ++__first; + ++__result; + } + return {std::move(__first), std::move(__result)}; + } + else + { + while (__first != __last) + { + if constexpr (_IsMove) + *__result = std::move(*__first); + else + *__result = *__first; + ++__first; + ++__result; + } + return {std::move(__first), std::move(__result)}; + } + } + + struct __copy_fn + { + template _Sent, + weakly_incrementable _Out> + requires indirectly_copyable<_Iter, _Out> + constexpr copy_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result) const + { + return ranges::__copy_or_move(std::move(__first), + std::move(__last), + std::move(__result)); + } + + template + requires indirectly_copyable, _Out> + constexpr copy_result, _Out> + operator()(_Range&& __r, _Out __result) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result)); + } + }; + + inline constexpr __copy_fn copy{}; + + struct __move_fn + { + template _Sent, + weakly_incrementable _Out> + requires indirectly_movable<_Iter, _Out> + constexpr move_result<_Iter, _Out> + operator()(_Iter __first, _Sent __last, _Out __result) const + { + return ranges::__copy_or_move(std::move(__first), + std::move(__last), + std::move(__result)); + } + + template + requires indirectly_movable, _Out> + constexpr move_result, _Out> + operator()(_Range&& __r, _Out __result) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result)); + } + }; + + inline constexpr __move_fn move{}; + + template _Sent, + bidirectional_iterator _Out> + requires (_IsMove + ? indirectly_movable<_Iter, _Out> + : indirectly_copyable<_Iter, _Out>) + constexpr conditional_t<_IsMove, + move_backward_result<_Iter, _Out>, + copy_backward_result<_Iter, _Out>> + __copy_or_move_backward(_Iter __first, _Sent __last, _Out __result) + { + // TODO: implement more specializations to be at least on par with + // std::copy_backward/std::move_backward. + using __detail::__is_reverse_iterator; + using __detail::__is_normal_iterator; + if constexpr (__is_reverse_iterator<_Iter> && same_as<_Iter, _Sent> + && __is_reverse_iterator<_Out>) + { + auto [__in,__out] + = ranges::__copy_or_move<_IsMove>(std::move(__last).base(), + std::move(__first).base(), + std::move(__result).base()); + return {reverse_iterator{std::move(__in)}, + reverse_iterator{std::move(__out)}}; + } + else if constexpr (__is_normal_iterator<_Iter> && same_as<_Iter, _Sent>) + { + auto [__in,__out] + = ranges::__copy_or_move_backward<_IsMove>(__first.base(), + __last.base(), + std::move(__result)); + return {decltype(__first){__in}, std::move(__out)}; + } + else if constexpr (__is_normal_iterator<_Out>) + { + auto [__in,__out] + = ranges::__copy_or_move_backward<_IsMove>(std::move(__first), + std::move(__last), + __result.base()); + return {std::move(__in), decltype(__result){__out}}; + } + else if constexpr (sized_sentinel_for<_Sent, _Iter>) + { +#ifdef __cpp_lib_is_constant_evaluated + if (!std::is_constant_evaluated()) +#endif + { + if constexpr (__memcpyable<_Out, _Iter>::__value) + { + using _ValueTypeI = iter_value_t<_Iter>; + static_assert(_IsMove + ? is_move_assignable_v<_ValueTypeI> + : is_copy_assignable_v<_ValueTypeI>); + auto __num = __last - __first; + if (__num) + __builtin_memmove(__result - __num, __first, + sizeof(_ValueTypeI) * __num); + return {__first + __num, __result - __num}; + } + } + + auto __lasti = ranges::next(__first, __last); + auto __tail = __lasti; + + for (auto __n = __last - __first; __n > 0; --__n) + { + --__tail; + --__result; + if constexpr (_IsMove) + *__result = std::move(*__tail); + else + *__result = *__tail; + } + return {std::move(__lasti), std::move(__result)}; + } + else + { + auto __lasti = ranges::next(__first, __last); + auto __tail = __lasti; + + while (__first != __tail) + { + --__tail; + --__result; + if constexpr (_IsMove) + *__result = std::move(*__tail); + else + *__result = *__tail; + } + return {std::move(__lasti), std::move(__result)}; + } + } + + struct __copy_backward_fn + { + template _Sent1, + bidirectional_iterator _Iter2> + requires indirectly_copyable<_Iter1, _Iter2> + constexpr copy_backward_result<_Iter1, _Iter2> + operator()(_Iter1 __first, _Sent1 __last, _Iter2 __result) const + { + return ranges::__copy_or_move_backward(std::move(__first), + std::move(__last), + std::move(__result)); + } + + template + requires indirectly_copyable, _Iter> + constexpr copy_backward_result, _Iter> + operator()(_Range&& __r, _Iter __result) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result)); + } + }; + + inline constexpr __copy_backward_fn copy_backward{}; + + struct __move_backward_fn + { + template _Sent1, + bidirectional_iterator _Iter2> + requires indirectly_movable<_Iter1, _Iter2> + constexpr move_backward_result<_Iter1, _Iter2> + operator()(_Iter1 __first, _Sent1 __last, _Iter2 __result) const + { + return ranges::__copy_or_move_backward(std::move(__first), + std::move(__last), + std::move(__result)); + } + + template + requires indirectly_movable, _Iter> + constexpr move_backward_result, _Iter> + operator()(_Range&& __r, _Iter __result) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), + std::move(__result)); + } + }; + + inline constexpr __move_backward_fn move_backward{}; + + template + using copy_n_result = in_out_result<_Iter, _Out>; + + struct __copy_n_fn + { + template + requires indirectly_copyable<_Iter, _Out> + constexpr copy_n_result<_Iter, _Out> + operator()(_Iter __first, iter_difference_t<_Iter> __n, + _Out __result) const + { + if constexpr (random_access_iterator<_Iter>) + return ranges::copy(__first, __first + __n, std::move(__result)); + else + { + for (; __n > 0; --__n, (void)++__result, (void)++__first) + *__result = *__first; + return {std::move(__first), std::move(__result)}; + } + } + }; + + inline constexpr __copy_n_fn copy_n{}; + + struct __fill_n_fn + { + template _Out> + constexpr _Out + operator()(_Out __first, iter_difference_t<_Out> __n, + const _Tp& __value) const + { + // TODO: implement more specializations to be at least on par with + // std::fill_n + if (__n <= 0) + return __first; + + // TODO: Generalize this optimization to contiguous iterators. + if constexpr (is_pointer_v<_Out> + // Note that __is_byte already implies !is_volatile. + && __is_byte>::__value + && integral<_Tp>) + { + __builtin_memset(__first, static_cast(__value), __n); + return __first + __n; + } + else if constexpr (is_scalar_v<_Tp>) + { + const auto __tmp = __value; + for (; __n > 0; --__n, (void)++__first) + *__first = __tmp; + return __first; + } + else + { + for (; __n > 0; --__n, (void)++__first) + *__first = __value; + return __first; + } + } + }; + + inline constexpr __fill_n_fn fill_n{}; + + struct __fill_fn + { + template _Out, sentinel_for<_Out> _Sent> + constexpr _Out + operator()(_Out __first, _Sent __last, const _Tp& __value) const + { + // TODO: implement more specializations to be at least on par with + // std::fill + if constexpr (sized_sentinel_for<_Sent, _Out>) + { + const auto __len = __last - __first; + return ranges::fill_n(__first, __len, __value); + } + else if constexpr (is_scalar_v<_Tp>) + { + const auto __tmp = __value; + for (; __first != __last; ++__first) + *__first = __tmp; + return __first; + } + else + { + for (; __first != __last; ++__first) + *__first = __value; + return __first; + } + } + + template _Range> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r, const _Tp& __value) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), __value); + } + }; + + inline constexpr __fill_fn fill{}; +} +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // concepts +#endif // C++20 +#endif // _RANGES_ALGOBASE_H diff --git a/resources/sources/avr-libstdcpp/include/bits/ranges_uninitialized.h b/resources/sources/avr-libstdcpp/include/bits/ranges_uninitialized.h new file mode 100644 index 000000000..25e664de7 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/ranges_uninitialized.h @@ -0,0 +1,574 @@ +// Raw memory manipulators -*- C++ -*- + +// Copyright (C) 2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/ranges_uninitialized.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _RANGES_UNINITIALIZED_H +#define _RANGES_UNINITIALIZED_H 1 + +#if __cplusplus > 201703L +#if __cpp_lib_concepts + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +namespace ranges +{ + namespace __detail + { + template + constexpr void* + __voidify(_Tp& __obj) noexcept + { + return const_cast + (static_cast(std::__addressof(__obj))); + } + + template + concept __nothrow_input_iterator + = (input_iterator<_Iter> + && is_lvalue_reference_v> + && same_as>, + iter_value_t<_Iter>>); + + template + concept __nothrow_sentinel = sentinel_for<_Sent, _Iter>; + + template + concept __nothrow_input_range + = (range<_Range> + && __nothrow_input_iterator> + && __nothrow_sentinel, iterator_t<_Range>>); + + template + concept __nothrow_forward_iterator + = (__nothrow_input_iterator<_Iter> + && forward_iterator<_Iter> + && __nothrow_sentinel<_Iter, _Iter>); + + template + concept __nothrow_forward_range + = (__nothrow_input_range<_Range> + && __nothrow_forward_iterator>); + } // namespace __detail + + struct __destroy_fn + { + template<__detail::__nothrow_input_iterator _Iter, + __detail::__nothrow_sentinel<_Iter> _Sent> + requires destructible> + constexpr _Iter + operator()(_Iter __first, _Sent __last) const noexcept; + + template<__detail::__nothrow_input_range _Range> + requires destructible> + constexpr borrowed_iterator_t<_Range> + operator()(_Range&& __r) const noexcept; + }; + + inline constexpr __destroy_fn destroy{}; + + namespace __detail + { + template + requires destructible> + struct _DestroyGuard + { + private: + _Iter _M_first; + const _Iter* _M_cur; + + public: + explicit + _DestroyGuard(const _Iter* __iter) + : _M_first(*__iter), _M_cur(__iter) + { } + + void + release() noexcept + { _M_cur = nullptr; } + + ~_DestroyGuard() + { + if (_M_cur != nullptr) + ranges::destroy(std::move(_M_first), *_M_cur); + } + }; + + template + requires destructible> + && is_trivially_destructible_v> + struct _DestroyGuard<_Iter> + { + explicit + _DestroyGuard(const _Iter*) + { } + + void + release() noexcept + { } + }; + } // namespace __detail + + struct __uninitialized_default_construct_fn + { + template<__detail::__nothrow_forward_iterator _Iter, + __detail::__nothrow_sentinel<_Iter> _Sent> + requires default_initializable> + _Iter + operator()(_Iter __first, _Sent __last) const + { + using _ValueType = remove_reference_t>; + if constexpr (is_trivially_default_constructible_v<_ValueType>) + return ranges::next(__first, __last); + else + { + auto __guard = __detail::_DestroyGuard(&__first); + for (; __first != __last; ++__first) + ::new (__detail::__voidify(*__first)) _ValueType; + __guard.release(); + return __first; + } + } + + template<__detail::__nothrow_forward_range _Range> + requires default_initializable> + borrowed_iterator_t<_Range> + operator()(_Range&& __r) const + { + return (*this)(ranges::begin(__r), ranges::end(__r)); + } + }; + + inline constexpr __uninitialized_default_construct_fn + uninitialized_default_construct{}; + + struct __uninitialized_default_construct_n_fn + { + template<__detail::__nothrow_forward_iterator _Iter> + requires default_initializable> + _Iter + operator()(_Iter __first, iter_difference_t<_Iter> __n) const + { + using _ValueType = remove_reference_t>; + if constexpr (is_trivially_default_constructible_v<_ValueType>) + return ranges::next(__first, __n); + else + { + auto __guard = __detail::_DestroyGuard(&__first); + for (; __n > 0; ++__first, (void) --__n) + ::new (__detail::__voidify(*__first)) _ValueType; + __guard.release(); + return __first; + } + } + }; + + inline constexpr __uninitialized_default_construct_n_fn + uninitialized_default_construct_n; + + struct __uninitialized_value_construct_fn + { + template<__detail::__nothrow_forward_iterator _Iter, + __detail::__nothrow_sentinel<_Iter> _Sent> + requires default_initializable> + _Iter + operator()(_Iter __first, _Sent __last) const + { + using _ValueType = remove_reference_t>; + if constexpr (is_trivial_v<_ValueType> + && is_copy_assignable_v<_ValueType>) + return ranges::fill(__first, __last, _ValueType()); + else + { + auto __guard = __detail::_DestroyGuard(&__first); + for (; __first != __last; ++__first) + ::new (__detail::__voidify(*__first)) _ValueType(); + __guard.release(); + return __first; + } + } + + template<__detail::__nothrow_forward_range _Range> + requires default_initializable> + borrowed_iterator_t<_Range> + operator()(_Range&& __r) const + { + return (*this)(ranges::begin(__r), ranges::end(__r)); + } + }; + + inline constexpr __uninitialized_value_construct_fn + uninitialized_value_construct{}; + + struct __uninitialized_value_construct_n_fn + { + template<__detail::__nothrow_forward_iterator _Iter> + requires default_initializable> + _Iter + operator()(_Iter __first, iter_difference_t<_Iter> __n) const + { + using _ValueType = remove_reference_t>; + if constexpr (is_trivial_v<_ValueType> + && is_copy_assignable_v<_ValueType>) + return ranges::fill_n(__first, __n, _ValueType()); + else + { + auto __guard = __detail::_DestroyGuard(&__first); + for (; __n > 0; ++__first, (void) --__n) + ::new (__detail::__voidify(*__first)) _ValueType(); + __guard.release(); + return __first; + } + } + }; + + inline constexpr __uninitialized_value_construct_n_fn + uninitialized_value_construct_n; + + template + using uninitialized_copy_result = in_out_result<_Iter, _Out>; + + struct __uninitialized_copy_fn + { + template _ISent, + __detail::__nothrow_forward_iterator _Out, + __detail::__nothrow_sentinel<_Out> _OSent> + requires constructible_from, iter_reference_t<_Iter>> + uninitialized_copy_result<_Iter, _Out> + operator()(_Iter __ifirst, _ISent __ilast, + _Out __ofirst, _OSent __olast) const + { + using _OutType = remove_reference_t>; + if constexpr (sized_sentinel_for<_ISent, _Iter> + && sized_sentinel_for<_OSent, _Out> + && is_trivial_v<_OutType> + && is_nothrow_assignable_v<_OutType&, + iter_reference_t<_Iter>>) + { + auto __d1 = __ilast - __ifirst; + auto __d2 = __olast - __ofirst; + return ranges::copy_n(std::move(__ifirst), std::min(__d1, __d2), + __ofirst); + } + else + { + auto __guard = __detail::_DestroyGuard(&__ofirst); + for (; __ifirst != __ilast && __ofirst != __olast; + ++__ofirst, (void)++__ifirst) + ::new (__detail::__voidify(*__ofirst)) _OutType(*__ifirst); + __guard.release(); + return {std::move(__ifirst), __ofirst}; + } + } + + template + requires constructible_from, + range_reference_t<_IRange>> + uninitialized_copy_result, + borrowed_iterator_t<_ORange>> + operator()(_IRange&& __inr, _ORange&& __outr) const + { + return (*this)(ranges::begin(__inr), ranges::end(__inr), + ranges::begin(__outr), ranges::end(__outr)); + } + }; + + inline constexpr __uninitialized_copy_fn uninitialized_copy{}; + + template + using uninitialized_copy_n_result = in_out_result<_Iter, _Out>; + + struct __uninitialized_copy_n_fn + { + template _Sent> + requires constructible_from, iter_reference_t<_Iter>> + uninitialized_copy_n_result<_Iter, _Out> + operator()(_Iter __ifirst, iter_difference_t<_Iter> __n, + _Out __ofirst, _Sent __olast) const + { + using _OutType = remove_reference_t>; + if constexpr (sized_sentinel_for<_Sent, _Out> + && is_trivial_v<_OutType> + && is_nothrow_assignable_v<_OutType&, + iter_reference_t<_Iter>>) + { + auto __d = __olast - __ofirst; + return ranges::copy_n(std::move(__ifirst), std::min(__n, __d), + __ofirst); + } + else + { + auto __guard = __detail::_DestroyGuard(&__ofirst); + for (; __n > 0 && __ofirst != __olast; + ++__ofirst, (void)++__ifirst, (void)--__n) + ::new (__detail::__voidify(*__ofirst)) _OutType(*__ifirst); + __guard.release(); + return {std::move(__ifirst), __ofirst}; + } + } + }; + + inline constexpr __uninitialized_copy_n_fn uninitialized_copy_n{}; + + template + using uninitialized_move_result = in_out_result<_Iter, _Out>; + + struct __uninitialized_move_fn + { + template _ISent, + __detail::__nothrow_forward_iterator _Out, + __detail::__nothrow_sentinel<_Out> _OSent> + requires constructible_from, + iter_rvalue_reference_t<_Iter>> + uninitialized_move_result<_Iter, _Out> + operator()(_Iter __ifirst, _ISent __ilast, + _Out __ofirst, _OSent __olast) const + { + using _OutType = remove_reference_t>; + if constexpr (sized_sentinel_for<_ISent, _Iter> + && sized_sentinel_for<_OSent, _Out> + && is_trivial_v<_OutType> + && is_nothrow_assignable_v<_OutType&, + iter_rvalue_reference_t<_Iter>>) + { + auto __d1 = __ilast - __ifirst; + auto __d2 = __olast - __ofirst; + auto [__in, __out] + = ranges::copy_n(std::make_move_iterator(std::move(__ifirst)), + std::min(__d1, __d2), __ofirst); + return {std::move(__in).base(), __out}; + } + else + { + auto __guard = __detail::_DestroyGuard(&__ofirst); + for (; __ifirst != __ilast && __ofirst != __olast; + ++__ofirst, (void)++__ifirst) + ::new (__detail::__voidify(*__ofirst)) + _OutType(ranges::iter_move(__ifirst)); + __guard.release(); + return {std::move(__ifirst), __ofirst}; + } + } + + template + requires constructible_from, + range_rvalue_reference_t<_IRange>> + uninitialized_move_result, + borrowed_iterator_t<_ORange>> + operator()(_IRange&& __inr, _ORange&& __outr) const + { + return (*this)(ranges::begin(__inr), ranges::end(__inr), + ranges::begin(__outr), ranges::end(__outr)); + } + }; + + inline constexpr __uninitialized_move_fn uninitialized_move{}; + + template + using uninitialized_move_n_result = in_out_result<_Iter, _Out>; + + struct __uninitialized_move_n_fn + { + template _Sent> + requires constructible_from, + iter_rvalue_reference_t<_Iter>> + uninitialized_move_n_result<_Iter, _Out> + operator()(_Iter __ifirst, iter_difference_t<_Iter> __n, + _Out __ofirst, _Sent __olast) const + { + using _OutType = remove_reference_t>; + if constexpr (sized_sentinel_for<_Sent, _Out> + && is_trivial_v<_OutType> + && is_nothrow_assignable_v<_OutType&, + iter_rvalue_reference_t<_Iter>>) + { + auto __d = __olast - __ofirst; + auto [__in, __out] + = ranges::copy_n(std::make_move_iterator(std::move(__ifirst)), + std::min(__n, __d), __ofirst); + return {std::move(__in).base(), __out}; + } + else + { + auto __guard = __detail::_DestroyGuard(&__ofirst); + for (; __n > 0 && __ofirst != __olast; + ++__ofirst, (void)++__ifirst, (void)--__n) + ::new (__detail::__voidify(*__ofirst)) + _OutType(ranges::iter_move(__ifirst)); + __guard.release(); + return {std::move(__ifirst), __ofirst}; + } + } + }; + + inline constexpr __uninitialized_move_n_fn uninitialized_move_n{}; + + struct __uninitialized_fill_fn + { + template<__detail::__nothrow_forward_iterator _Iter, + __detail::__nothrow_sentinel<_Iter> _Sent, typename _Tp> + requires constructible_from, const _Tp&> + _Iter + operator()(_Iter __first, _Sent __last, const _Tp& __x) const + { + using _ValueType = remove_reference_t>; + if constexpr (is_trivial_v<_ValueType> + && is_nothrow_assignable_v<_ValueType&, const _Tp&>) + return ranges::fill(__first, __last, __x); + else + { + auto __guard = __detail::_DestroyGuard(&__first); + for (; __first != __last; ++__first) + ::new (__detail::__voidify(*__first)) _ValueType(__x); + __guard.release(); + return __first; + } + } + + template<__detail::__nothrow_forward_range _Range, typename _Tp> + requires constructible_from, const _Tp&> + borrowed_iterator_t<_Range> + operator()(_Range&& __r, const _Tp& __x) const + { + return (*this)(ranges::begin(__r), ranges::end(__r), __x); + } + }; + + inline constexpr __uninitialized_fill_fn uninitialized_fill{}; + + struct __uninitialized_fill_n_fn + { + template<__detail::__nothrow_forward_iterator _Iter, typename _Tp> + requires constructible_from, const _Tp&> + _Iter + operator()(_Iter __first, iter_difference_t<_Iter> __n, + const _Tp& __x) const + { + using _ValueType = remove_reference_t>; + if constexpr (is_trivial_v<_ValueType> + && is_nothrow_assignable_v<_ValueType&, const _Tp&>) + return ranges::fill_n(__first, __n, __x); + else + { + auto __guard = __detail::_DestroyGuard(&__first); + for (; __n > 0; ++__first, (void)--__n) + ::new (__detail::__voidify(*__first)) _ValueType(__x); + __guard.release(); + return __first; + } + } + }; + + inline constexpr __uninitialized_fill_n_fn uninitialized_fill_n{}; + + struct __construct_at_fn + { + template + requires requires { + ::new (std::declval()) _Tp(std::declval<_Args>()...); + } + constexpr _Tp* + operator()(_Tp* __location, _Args&&... __args) const + noexcept(noexcept(std::construct_at(__location, + std::forward<_Args>(__args)...))) + { + return std::construct_at(__location, + std::forward<_Args>(__args)...); + } + }; + + inline constexpr __construct_at_fn construct_at{}; + + struct __destroy_at_fn + { + template + constexpr void + operator()(_Tp* __location) const noexcept + { + if constexpr (is_array_v<_Tp>) + ranges::destroy(ranges::begin(*__location), ranges::end(*__location)); + else + __location->~_Tp(); + } + }; + + inline constexpr __destroy_at_fn destroy_at{}; + + template<__detail::__nothrow_input_iterator _Iter, + __detail::__nothrow_sentinel<_Iter> _Sent> + requires destructible> + constexpr _Iter + __destroy_fn::operator()(_Iter __first, _Sent __last) const noexcept + { + if constexpr (is_trivially_destructible_v>) + return ranges::next(std::move(__first), __last); + else + { + for (; __first != __last; ++__first) + ranges::destroy_at(std::__addressof(*__first)); + return __first; + } + } + + template<__detail::__nothrow_input_range _Range> + requires destructible> + constexpr borrowed_iterator_t<_Range> + __destroy_fn::operator()(_Range&& __r) const noexcept + { + return (*this)(ranges::begin(__r), ranges::end(__r)); + } + + struct __destroy_n_fn + { + template<__detail::__nothrow_input_iterator _Iter> + requires destructible> + constexpr _Iter + operator()(_Iter __first, iter_difference_t<_Iter> __n) const noexcept + { + if constexpr (is_trivially_destructible_v>) + return ranges::next(std::move(__first), __n); + else + { + for (; __n > 0; ++__first, (void)--__n) + ranges::destroy_at(std::__addressof(*__first)); + return __first; + } + } + }; + + inline constexpr __destroy_n_fn destroy_n{}; +} +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // concepts +#endif // C++20 +#endif // _RANGES_UNINITIALIZED_H diff --git a/resources/sources/avr-libstdcpp/include/bits/refwrap.h b/resources/sources/avr-libstdcpp/include/bits/refwrap.h new file mode 100644 index 000000000..717aa0162 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/refwrap.h @@ -0,0 +1,401 @@ +// Implementation of std::reference_wrapper -*- C++ -*- + +// Copyright (C) 2004-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/bits/refwrap.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _GLIBCXX_REFWRAP_H +#define _GLIBCXX_REFWRAP_H 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include // for unary_function and binary_function + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// @cond undocumented + + /** + * Derives from @c unary_function or @c binary_function, or perhaps + * nothing, depending on the number of arguments provided. The + * primary template is the basis case, which derives nothing. + */ + template + struct _Maybe_unary_or_binary_function { }; + + /// Derives from @c unary_function, as appropriate. + template + struct _Maybe_unary_or_binary_function<_Res, _T1> + : std::unary_function<_T1, _Res> { }; + + /// Derives from @c binary_function, as appropriate. + template + struct _Maybe_unary_or_binary_function<_Res, _T1, _T2> + : std::binary_function<_T1, _T2, _Res> { }; + + template + struct _Mem_fn_traits; + + template + struct _Mem_fn_traits_base + { + using __result_type = _Res; + using __maybe_type + = _Maybe_unary_or_binary_function<_Res, _Class*, _ArgTypes...>; + using __arity = integral_constant; + }; + +#define _GLIBCXX_MEM_FN_TRAITS2(_CV, _REF, _LVAL, _RVAL) \ + template \ + struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) _CV _REF> \ + : _Mem_fn_traits_base<_Res, _CV _Class, _ArgTypes...> \ + { \ + using __vararg = false_type; \ + }; \ + template \ + struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) _CV _REF> \ + : _Mem_fn_traits_base<_Res, _CV _Class, _ArgTypes...> \ + { \ + using __vararg = true_type; \ + }; + +#define _GLIBCXX_MEM_FN_TRAITS(_REF, _LVAL, _RVAL) \ + _GLIBCXX_MEM_FN_TRAITS2( , _REF, _LVAL, _RVAL) \ + _GLIBCXX_MEM_FN_TRAITS2(const , _REF, _LVAL, _RVAL) \ + _GLIBCXX_MEM_FN_TRAITS2(volatile , _REF, _LVAL, _RVAL) \ + _GLIBCXX_MEM_FN_TRAITS2(const volatile, _REF, _LVAL, _RVAL) + +_GLIBCXX_MEM_FN_TRAITS( , true_type, true_type) +_GLIBCXX_MEM_FN_TRAITS(&, true_type, false_type) +_GLIBCXX_MEM_FN_TRAITS(&&, false_type, true_type) + +#if __cplusplus > 201402L +_GLIBCXX_MEM_FN_TRAITS(noexcept, true_type, true_type) +_GLIBCXX_MEM_FN_TRAITS(& noexcept, true_type, false_type) +_GLIBCXX_MEM_FN_TRAITS(&& noexcept, false_type, true_type) +#endif + +#undef _GLIBCXX_MEM_FN_TRAITS +#undef _GLIBCXX_MEM_FN_TRAITS2 + + /// If we have found a result_type, extract it. + template> + struct _Maybe_get_result_type + { }; + + template + struct _Maybe_get_result_type<_Functor, + __void_t> + { typedef typename _Functor::result_type result_type; }; + + /** + * Base class for any function object that has a weak result type, as + * defined in 20.8.2 [func.require] of C++11. + */ + template + struct _Weak_result_type_impl + : _Maybe_get_result_type<_Functor> + { }; + + /// Retrieve the result type for a function type. + template + struct _Weak_result_type_impl<_Res(_ArgTypes...) _GLIBCXX_NOEXCEPT_QUAL> + { typedef _Res result_type; }; + + /// Retrieve the result type for a varargs function type. + template + struct _Weak_result_type_impl<_Res(_ArgTypes......) _GLIBCXX_NOEXCEPT_QUAL> + { typedef _Res result_type; }; + + /// Retrieve the result type for a function pointer. + template + struct _Weak_result_type_impl<_Res(*)(_ArgTypes...) _GLIBCXX_NOEXCEPT_QUAL> + { typedef _Res result_type; }; + + /// Retrieve the result type for a varargs function pointer. + template + struct + _Weak_result_type_impl<_Res(*)(_ArgTypes......) _GLIBCXX_NOEXCEPT_QUAL> + { typedef _Res result_type; }; + + // Let _Weak_result_type_impl perform the real work. + template::value> + struct _Weak_result_type_memfun + : _Weak_result_type_impl<_Functor> + { }; + + // A pointer to member function has a weak result type. + template + struct _Weak_result_type_memfun<_MemFunPtr, true> + { + using result_type = typename _Mem_fn_traits<_MemFunPtr>::__result_type; + }; + + // A pointer to data member doesn't have a weak result type. + template + struct _Weak_result_type_memfun<_Func _Class::*, false> + { }; + + /** + * Strip top-level cv-qualifiers from the function object and let + * _Weak_result_type_memfun perform the real work. + */ + template + struct _Weak_result_type + : _Weak_result_type_memfun::type> + { }; + +#if __cplusplus <= 201703L + // Detect nested argument_type. + template> + struct _Refwrap_base_arg1 + { }; + + // Nested argument_type. + template + struct _Refwrap_base_arg1<_Tp, + __void_t> + { + typedef typename _Tp::argument_type argument_type; + }; + + // Detect nested first_argument_type and second_argument_type. + template> + struct _Refwrap_base_arg2 + { }; + + // Nested first_argument_type and second_argument_type. + template + struct _Refwrap_base_arg2<_Tp, + __void_t> + { + typedef typename _Tp::first_argument_type first_argument_type; + typedef typename _Tp::second_argument_type second_argument_type; + }; + + /** + * Derives from unary_function or binary_function when it + * can. Specializations handle all of the easy cases. The primary + * template determines what to do with a class type, which may + * derive from both unary_function and binary_function. + */ + template + struct _Reference_wrapper_base + : _Weak_result_type<_Tp>, _Refwrap_base_arg1<_Tp>, _Refwrap_base_arg2<_Tp> + { }; + + // - a function type (unary) + template + struct _Reference_wrapper_base<_Res(_T1) _GLIBCXX_NOEXCEPT_QUAL> + : unary_function<_T1, _Res> + { }; + + template + struct _Reference_wrapper_base<_Res(_T1) const> + : unary_function<_T1, _Res> + { }; + + template + struct _Reference_wrapper_base<_Res(_T1) volatile> + : unary_function<_T1, _Res> + { }; + + template + struct _Reference_wrapper_base<_Res(_T1) const volatile> + : unary_function<_T1, _Res> + { }; + + // - a function type (binary) + template + struct _Reference_wrapper_base<_Res(_T1, _T2) _GLIBCXX_NOEXCEPT_QUAL> + : binary_function<_T1, _T2, _Res> + { }; + + template + struct _Reference_wrapper_base<_Res(_T1, _T2) const> + : binary_function<_T1, _T2, _Res> + { }; + + template + struct _Reference_wrapper_base<_Res(_T1, _T2) volatile> + : binary_function<_T1, _T2, _Res> + { }; + + template + struct _Reference_wrapper_base<_Res(_T1, _T2) const volatile> + : binary_function<_T1, _T2, _Res> + { }; + + // - a function pointer type (unary) + template + struct _Reference_wrapper_base<_Res(*)(_T1) _GLIBCXX_NOEXCEPT_QUAL> + : unary_function<_T1, _Res> + { }; + + // - a function pointer type (binary) + template + struct _Reference_wrapper_base<_Res(*)(_T1, _T2) _GLIBCXX_NOEXCEPT_QUAL> + : binary_function<_T1, _T2, _Res> + { }; + + template::value> + struct _Reference_wrapper_base_memfun + : _Reference_wrapper_base<_Tp> + { }; + + template + struct _Reference_wrapper_base_memfun<_MemFunPtr, true> + : _Mem_fn_traits<_MemFunPtr>::__maybe_type + { + using result_type = typename _Mem_fn_traits<_MemFunPtr>::__result_type; + }; +#endif // ! C++20 + + /// @endcond + + /** + * @brief Primary class template for reference_wrapper. + * @ingroup functors + */ + template + class reference_wrapper +#if __cplusplus <= 201703L + // In C++20 std::reference_wrapper allows T to be incomplete, + // so checking for nested types could result in ODR violations. + : public _Reference_wrapper_base_memfun::type> +#endif + { + _Tp* _M_data; + + _GLIBCXX20_CONSTEXPR + static _Tp* _S_fun(_Tp& __r) noexcept { return std::__addressof(__r); } + + static void _S_fun(_Tp&&) = delete; + + template> + using __not_same + = typename enable_if::value>::type; + + public: + typedef _Tp type; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2993. reference_wrapper conversion from T&& + // 3041. Unnecessary decay in reference_wrapper + template, typename + = decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> + _GLIBCXX20_CONSTEXPR + reference_wrapper(_Up&& __uref) + noexcept(noexcept(reference_wrapper::_S_fun(std::declval<_Up>()))) + : _M_data(reference_wrapper::_S_fun(std::forward<_Up>(__uref))) + { } + + reference_wrapper(const reference_wrapper&) = default; + + reference_wrapper& + operator=(const reference_wrapper&) = default; + + _GLIBCXX20_CONSTEXPR + operator _Tp&() const noexcept + { return this->get(); } + + _GLIBCXX20_CONSTEXPR + _Tp& + get() const noexcept + { return *_M_data; } + + template + _GLIBCXX20_CONSTEXPR + typename result_of<_Tp&(_Args&&...)>::type + operator()(_Args&&... __args) const + { +#if __cplusplus > 201703L + if constexpr (is_object_v) + static_assert(sizeof(type), "type must be complete"); +#endif + return std::__invoke(get(), std::forward<_Args>(__args)...); + } + }; + +#if __cpp_deduction_guides + template + reference_wrapper(_Tp&) -> reference_wrapper<_Tp>; +#endif + + /// @relates reference_wrapper @{ + + /// Denotes a reference should be taken to a variable. + template + _GLIBCXX20_CONSTEXPR + inline reference_wrapper<_Tp> + ref(_Tp& __t) noexcept + { return reference_wrapper<_Tp>(__t); } + + /// Denotes a const reference should be taken to a variable. + template + _GLIBCXX20_CONSTEXPR + inline reference_wrapper + cref(const _Tp& __t) noexcept + { return reference_wrapper(__t); } + + template + void ref(const _Tp&&) = delete; + + template + void cref(const _Tp&&) = delete; + + /// std::ref overload to prevent wrapping a reference_wrapper + template + _GLIBCXX20_CONSTEXPR + inline reference_wrapper<_Tp> + ref(reference_wrapper<_Tp> __t) noexcept + { return __t; } + + /// std::cref overload to prevent wrapping a reference_wrapper + template + _GLIBCXX20_CONSTEXPR + inline reference_wrapper + cref(reference_wrapper<_Tp> __t) noexcept + { return { __t.get() }; } + + // @} + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#endif // _GLIBCXX_REFWRAP_H diff --git a/resources/sources/avr-libstdcpp/include/bits/slice_array.h b/resources/sources/avr-libstdcpp/include/bits/slice_array.h new file mode 100644 index 000000000..de33342e2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/slice_array.h @@ -0,0 +1,284 @@ +// The template and inlines for the -*- C++ -*- slice_array class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/slice_array.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _SLICE_ARRAY_H +#define _SLICE_ARRAY_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup numeric_arrays + * @{ + */ + + /** + * @brief Class defining one-dimensional subset of an array. + * + * The slice class represents a one-dimensional subset of an array, + * specified by three parameters: start offset, size, and stride. The + * start offset is the index of the first element of the array that is part + * of the subset. The size is the total number of elements in the subset. + * Stride is the distance between each successive array element to include + * in the subset. + * + * For example, with an array of size 10, and a slice with offset 1, size 3 + * and stride 2, the subset consists of array elements 1, 3, and 5. + */ + class slice + { + public: + /// Construct an empty slice. + slice(); + + /** + * @brief Construct a slice. + * + * @param __o Offset in array of first element. + * @param __d Number of elements in slice. + * @param __s Stride between array elements. + */ + slice(size_t __o, size_t __d, size_t __s); + + /// Return array offset of first slice element. + size_t start() const; + /// Return size of slice. + size_t size() const; + /// Return array stride of slice. + size_t stride() const; + +#if __cpp_impl_three_way_comparison >= 201907L + /// Equality comparison + friend bool operator==(const slice&, const slice&) = default; +#endif + + private: + size_t _M_off; // offset + size_t _M_sz; // size + size_t _M_st; // stride unit + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 543. valarray slice default constructor + inline + slice::slice() + : _M_off(0), _M_sz(0), _M_st(0) {} + + inline + slice::slice(size_t __o, size_t __d, size_t __s) + : _M_off(__o), _M_sz(__d), _M_st(__s) {} + + inline size_t + slice::start() const + { return _M_off; } + + inline size_t + slice::size() const + { return _M_sz; } + + inline size_t + slice::stride() const + { return _M_st; } + + /** + * @brief Reference to one-dimensional subset of an array. + * + * A slice_array is a reference to the actual elements of an array + * specified by a slice. The way to get a slice_array is to call + * operator[](slice) on a valarray. The returned slice_array then permits + * carrying operations out on the referenced subset of elements in the + * original valarray. For example, operator+=(valarray) will add values + * to the subset of elements in the underlying valarray this slice_array + * refers to. + * + * @param Tp Element type. + */ + template + class slice_array + { + public: + typedef _Tp value_type; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 253. valarray helper functions are almost entirely useless + + /// Copy constructor. Both slices refer to the same underlying array. + slice_array(const slice_array&); + + /// Assignment operator. Assigns slice elements to corresponding + /// elements of @a a. + slice_array& operator=(const slice_array&); + + /// Assign slice elements to corresponding elements of @a v. + void operator=(const valarray<_Tp>&) const; + /// Multiply slice elements by corresponding elements of @a v. + void operator*=(const valarray<_Tp>&) const; + /// Divide slice elements by corresponding elements of @a v. + void operator/=(const valarray<_Tp>&) const; + /// Modulo slice elements by corresponding elements of @a v. + void operator%=(const valarray<_Tp>&) const; + /// Add corresponding elements of @a v to slice elements. + void operator+=(const valarray<_Tp>&) const; + /// Subtract corresponding elements of @a v from slice elements. + void operator-=(const valarray<_Tp>&) const; + /// Logical xor slice elements with corresponding elements of @a v. + void operator^=(const valarray<_Tp>&) const; + /// Logical and slice elements with corresponding elements of @a v. + void operator&=(const valarray<_Tp>&) const; + /// Logical or slice elements with corresponding elements of @a v. + void operator|=(const valarray<_Tp>&) const; + /// Left shift slice elements by corresponding elements of @a v. + void operator<<=(const valarray<_Tp>&) const; + /// Right shift slice elements by corresponding elements of @a v. + void operator>>=(const valarray<_Tp>&) const; + /// Assign all slice elements to @a t. + void operator=(const _Tp &) const; + // ~slice_array (); + + template + void operator=(const _Expr<_Dom, _Tp>&) const; + template + void operator*=(const _Expr<_Dom, _Tp>&) const; + template + void operator/=(const _Expr<_Dom, _Tp>&) const; + template + void operator%=(const _Expr<_Dom, _Tp>&) const; + template + void operator+=(const _Expr<_Dom, _Tp>&) const; + template + void operator-=(const _Expr<_Dom, _Tp>&) const; + template + void operator^=(const _Expr<_Dom, _Tp>&) const; + template + void operator&=(const _Expr<_Dom, _Tp>&) const; + template + void operator|=(const _Expr<_Dom, _Tp>&) const; + template + void operator<<=(const _Expr<_Dom, _Tp>&) const; + template + void operator>>=(const _Expr<_Dom, _Tp>&) const; + + private: + friend class valarray<_Tp>; + slice_array(_Array<_Tp>, const slice&); + + const size_t _M_sz; + const size_t _M_stride; + const _Array<_Tp> _M_array; + +#if __cplusplus < 201103L + // not implemented + slice_array(); +#else + public: + slice_array() = delete; +#endif + }; + + template + inline + slice_array<_Tp>::slice_array(_Array<_Tp> __a, const slice& __s) + : _M_sz(__s.size()), _M_stride(__s.stride()), + _M_array(__a.begin() + __s.start()) {} + + template + inline + slice_array<_Tp>::slice_array(const slice_array<_Tp>& __a) + : _M_sz(__a._M_sz), _M_stride(__a._M_stride), _M_array(__a._M_array) {} + + // template + // inline slice_array<_Tp>::~slice_array () {} + + template + inline slice_array<_Tp>& + slice_array<_Tp>::operator=(const slice_array<_Tp>& __a) + { + std::__valarray_copy(__a._M_array, __a._M_sz, __a._M_stride, + _M_array, _M_stride); + return *this; + } + + template + inline void + slice_array<_Tp>::operator=(const _Tp& __t) const + { std::__valarray_fill(_M_array, _M_sz, _M_stride, __t); } + + template + inline void + slice_array<_Tp>::operator=(const valarray<_Tp>& __v) const + { std::__valarray_copy(_Array<_Tp>(__v), _M_array, _M_sz, _M_stride); } + + template + template + inline void + slice_array<_Tp>::operator=(const _Expr<_Dom,_Tp>& __e) const + { std::__valarray_copy(__e, _M_sz, _M_array, _M_stride); } + +#undef _DEFINE_VALARRAY_OPERATOR +#define _DEFINE_VALARRAY_OPERATOR(_Op,_Name) \ + template \ + inline void \ + slice_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \ + { \ + _Array_augmented_##_Name(_M_array, _M_sz, _M_stride, _Array<_Tp>(__v));\ + } \ + \ + template \ + template \ + inline void \ + slice_array<_Tp>::operator _Op##=(const _Expr<_Dom,_Tp>& __e) const\ + { \ + _Array_augmented_##_Name(_M_array, _M_stride, __e, _M_sz); \ + } + + +_DEFINE_VALARRAY_OPERATOR(*, __multiplies) +_DEFINE_VALARRAY_OPERATOR(/, __divides) +_DEFINE_VALARRAY_OPERATOR(%, __modulus) +_DEFINE_VALARRAY_OPERATOR(+, __plus) +_DEFINE_VALARRAY_OPERATOR(-, __minus) +_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor) +_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and) +_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or) +_DEFINE_VALARRAY_OPERATOR(<<, __shift_left) +_DEFINE_VALARRAY_OPERATOR(>>, __shift_right) + +#undef _DEFINE_VALARRAY_OPERATOR + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _SLICE_ARRAY_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/std_abs.h b/resources/sources/avr-libstdcpp/include/bits/std_abs.h new file mode 100644 index 000000000..b0451a3ab --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/std_abs.h @@ -0,0 +1,111 @@ +// -*- C++ -*- C library enhancements header. + +// Copyright (C) 2016-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/bits/std_abs.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{cmath, cstdlib} + */ + +#ifndef _GLIBCXX_BITS_STD_ABS_H +#define _GLIBCXX_BITS_STD_ABS_H + +#pragma GCC system_header + +#include + +#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS +#include_next +#ifdef __CORRECT_ISO_CPP_MATH_H_PROTO +# include_next +#endif +#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS + +#undef abs + +extern "C++" +{ +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using ::abs; + +#ifndef __CORRECT_ISO_CPP_STDLIB_H_PROTO + inline long + abs(long __i) { return __builtin_labs(__i); } +#endif + +#ifdef _GLIBCXX_USE_LONG_LONG + inline long long + abs(long long __x) { return __builtin_llabs (__x); } +#endif + +// _GLIBCXX_RESOLVE_LIB_DEFECTS +// 2192. Validity and return type of std::abs(0u) is unclear +// 2294. should declare abs(double) +// 2735. std::abs(short), std::abs(signed char) and others should return int + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR double + abs(double __x) + { return __builtin_fabs(__x); } + + inline _GLIBCXX_CONSTEXPR float + abs(float __x) + { return __builtin_fabsf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + abs(long double __x) + { return __builtin_fabsl(__x); } +#endif + +#if defined(__GLIBCXX_TYPE_INT_N_0) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_0 + abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; } +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_1 + abs(__GLIBCXX_TYPE_INT_N_1 __x) { return __x >= 0 ? __x : -__x; } +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_2 + abs(__GLIBCXX_TYPE_INT_N_2 __x) { return __x >= 0 ? __x : -__x; } +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_3 + abs(__GLIBCXX_TYPE_INT_N_3 __x) { return __x >= 0 ? __x : -__x; } +#endif + +#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) + inline _GLIBCXX_CONSTEXPR + __float128 + abs(__float128 __x) + { return __x < 0 ? -__x : __x; } +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +} // extern "C"++" + +#endif // _GLIBCXX_BITS_STD_ABS_H diff --git a/resources/sources/avr-libstdcpp/include/bits/std_function.h b/resources/sources/avr-libstdcpp/include/bits/std_function.h new file mode 100644 index 000000000..4a3848030 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/std_function.h @@ -0,0 +1,728 @@ +// Implementation of std::function -*- C++ -*- + +// Copyright (C) 2004-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/bits/std_function.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _GLIBCXX_STD_FUNCTION_H +#define _GLIBCXX_STD_FUNCTION_H 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#if __cpp_rtti +# include +#endif +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * Trait identifying "location-invariant" types, meaning that the + * address of the object (or any of its members) will not escape. + * Trivially copyable types are location-invariant and users can + * specialize this trait for other types. + */ + template + struct __is_location_invariant + : is_trivially_copyable<_Tp>::type + { }; + + class _Undefined_class; + + union _Nocopy_types + { + void* _M_object; + const void* _M_const_object; + void (*_M_function_pointer)(); + void (_Undefined_class::*_M_member_pointer)(); + }; + + union [[gnu::may_alias]] _Any_data + { + void* _M_access() { return &_M_pod_data[0]; } + const void* _M_access() const { return &_M_pod_data[0]; } + + template + _Tp& + _M_access() + { return *static_cast<_Tp*>(_M_access()); } + + template + const _Tp& + _M_access() const + { return *static_cast(_M_access()); } + + _Nocopy_types _M_unused; + char _M_pod_data[sizeof(_Nocopy_types)]; + }; + + enum _Manager_operation + { + __get_type_info, + __get_functor_ptr, + __clone_functor, + __destroy_functor + }; + + template + class function; + + /// Base class of all polymorphic function object wrappers. + class _Function_base + { + public: + static const size_t _M_max_size = sizeof(_Nocopy_types); + static const size_t _M_max_align = __alignof__(_Nocopy_types); + + template + class _Base_manager + { + protected: + static const bool __stored_locally = + (__is_location_invariant<_Functor>::value + && sizeof(_Functor) <= _M_max_size + && __alignof__(_Functor) <= _M_max_align + && (_M_max_align % __alignof__(_Functor) == 0)); + + typedef integral_constant _Local_storage; + + // Retrieve a pointer to the function object + static _Functor* + _M_get_pointer(const _Any_data& __source) + { + if _GLIBCXX17_CONSTEXPR (__stored_locally) + { + const _Functor& __f = __source._M_access<_Functor>(); + return const_cast<_Functor*>(std::__addressof(__f)); + } + else // have stored a pointer + return __source._M_access<_Functor*>(); + } + + // Clone a location-invariant function object that fits within + // an _Any_data structure. + static void + _M_clone(_Any_data& __dest, const _Any_data& __source, true_type) + { + ::new (__dest._M_access()) _Functor(__source._M_access<_Functor>()); + } + + // Clone a function object that is not location-invariant or + // that cannot fit into an _Any_data structure. + static void + _M_clone(_Any_data& __dest, const _Any_data& __source, false_type) + { + __dest._M_access<_Functor*>() = + new _Functor(*__source._M_access()); + } + + // Destroying a location-invariant object may still require + // destruction. + static void + _M_destroy(_Any_data& __victim, true_type) + { + __victim._M_access<_Functor>().~_Functor(); + } + + // Destroying an object located on the heap. + static void + _M_destroy(_Any_data& __victim, false_type) + { + delete __victim._M_access<_Functor*>(); + } + + public: + static bool + _M_manager(_Any_data& __dest, const _Any_data& __source, + _Manager_operation __op) + { + switch (__op) + { +#if __cpp_rtti + case __get_type_info: + __dest._M_access() = &typeid(_Functor); + break; +#endif + case __get_functor_ptr: + __dest._M_access<_Functor*>() = _M_get_pointer(__source); + break; + + case __clone_functor: + _M_clone(__dest, __source, _Local_storage()); + break; + + case __destroy_functor: + _M_destroy(__dest, _Local_storage()); + break; + } + return false; + } + + static void + _M_init_functor(_Any_data& __functor, _Functor&& __f) + { _M_init_functor(__functor, std::move(__f), _Local_storage()); } + + template + static bool + _M_not_empty_function(const function<_Signature>& __f) + { return static_cast(__f); } + + template + static bool + _M_not_empty_function(_Tp* __fp) + { return __fp != nullptr; } + + template + static bool + _M_not_empty_function(_Tp _Class::* __mp) + { return __mp != nullptr; } + + template + static bool + _M_not_empty_function(const _Tp&) + { return true; } + + private: + static void + _M_init_functor(_Any_data& __functor, _Functor&& __f, true_type) + { ::new (__functor._M_access()) _Functor(std::move(__f)); } + + static void + _M_init_functor(_Any_data& __functor, _Functor&& __f, false_type) + { __functor._M_access<_Functor*>() = new _Functor(std::move(__f)); } + }; + + _Function_base() : _M_manager(nullptr) { } + + ~_Function_base() + { + if (_M_manager) + _M_manager(_M_functor, _M_functor, __destroy_functor); + } + + bool _M_empty() const { return !_M_manager; } + + typedef bool (*_Manager_type)(_Any_data&, const _Any_data&, + _Manager_operation); + + _Any_data _M_functor; + _Manager_type _M_manager; + }; + + template + class _Function_handler; + + template + class _Function_handler<_Res(_ArgTypes...), _Functor> + : public _Function_base::_Base_manager<_Functor> + { + typedef _Function_base::_Base_manager<_Functor> _Base; + + public: + static bool + _M_manager(_Any_data& __dest, const _Any_data& __source, + _Manager_operation __op) + { + switch (__op) + { +#if __cpp_rtti + case __get_type_info: + __dest._M_access() = &typeid(_Functor); + break; +#endif + case __get_functor_ptr: + __dest._M_access<_Functor*>() = _Base::_M_get_pointer(__source); + break; + + default: + _Base::_M_manager(__dest, __source, __op); + } + return false; + } + + static _Res + _M_invoke(const _Any_data& __functor, _ArgTypes&&... __args) + { + return std::__invoke_r<_Res>(*_Base::_M_get_pointer(__functor), + std::forward<_ArgTypes>(__args)...); + } + }; + + /** + * @brief Primary class template for std::function. + * @ingroup functors + * + * Polymorphic function wrapper. + */ + template + class function<_Res(_ArgTypes...)> + : public _Maybe_unary_or_binary_function<_Res, _ArgTypes...>, + private _Function_base + { + template> + struct _Callable + : __is_invocable_impl<_Res2, _Res>::type + { }; + + // Used so the return type convertibility checks aren't done when + // performing overload resolution for copy construction/assignment. + template + struct _Callable : false_type { }; + + template + using _Requires = typename enable_if<_Cond::value, _Tp>::type; + + public: + typedef _Res result_type; + + // [3.7.2.1] construct/copy/destroy + + /** + * @brief Default construct creates an empty function call wrapper. + * @post @c !(bool)*this + */ + function() noexcept + : _Function_base() { } + + /** + * @brief Creates an empty function call wrapper. + * @post @c !(bool)*this + */ + function(nullptr_t) noexcept + : _Function_base() { } + + /** + * @brief %Function copy constructor. + * @param __x A %function object with identical call signature. + * @post @c bool(*this) == bool(__x) + * + * The newly-created %function contains a copy of the target of @a + * __x (if it has one). + */ + function(const function& __x); + + /** + * @brief %Function move constructor. + * @param __x A %function object rvalue with identical call signature. + * + * The newly-created %function contains the target of @a __x + * (if it has one). + */ + function(function&& __x) noexcept : _Function_base() + { + __x.swap(*this); + } + + /** + * @brief Builds a %function that targets a copy of the incoming + * function object. + * @param __f A %function object that is callable with parameters of + * type @c T1, @c T2, ..., @c TN and returns a value convertible + * to @c Res. + * + * The newly-created %function object will target a copy of + * @a __f. If @a __f is @c reference_wrapper, then this function + * object will contain a reference to the function object @c + * __f.get(). If @a __f is a NULL function pointer or NULL + * pointer-to-member, the newly-created object will be empty. + * + * If @a __f is a non-NULL function pointer or an object of type @c + * reference_wrapper, this function will not throw. + */ + template>, void>, + typename = _Requires<_Callable<_Functor>, void>> + function(_Functor); + + /** + * @brief %Function assignment operator. + * @param __x A %function with identical call signature. + * @post @c (bool)*this == (bool)x + * @returns @c *this + * + * The target of @a __x is copied to @c *this. If @a __x has no + * target, then @c *this will be empty. + * + * If @a __x targets a function pointer or a reference to a function + * object, then this operation will not throw an %exception. + */ + function& + operator=(const function& __x) + { + function(__x).swap(*this); + return *this; + } + + /** + * @brief %Function move-assignment operator. + * @param __x A %function rvalue with identical call signature. + * @returns @c *this + * + * The target of @a __x is moved to @c *this. If @a __x has no + * target, then @c *this will be empty. + * + * If @a __x targets a function pointer or a reference to a function + * object, then this operation will not throw an %exception. + */ + function& + operator=(function&& __x) noexcept + { + function(std::move(__x)).swap(*this); + return *this; + } + + /** + * @brief %Function assignment to zero. + * @post @c !(bool)*this + * @returns @c *this + * + * The target of @c *this is deallocated, leaving it empty. + */ + function& + operator=(nullptr_t) noexcept + { + if (_M_manager) + { + _M_manager(_M_functor, _M_functor, __destroy_functor); + _M_manager = nullptr; + _M_invoker = nullptr; + } + return *this; + } + + /** + * @brief %Function assignment to a new target. + * @param __f A %function object that is callable with parameters of + * type @c T1, @c T2, ..., @c TN and returns a value convertible + * to @c Res. + * @return @c *this + * + * This %function object wrapper will target a copy of @a + * __f. If @a __f is @c reference_wrapper, then this function + * object will contain a reference to the function object @c + * __f.get(). If @a __f is a NULL function pointer or NULL + * pointer-to-member, @c this object will be empty. + * + * If @a __f is a non-NULL function pointer or an object of type @c + * reference_wrapper, this function will not throw. + */ + template + _Requires<_Callable::type>, function&> + operator=(_Functor&& __f) + { + function(std::forward<_Functor>(__f)).swap(*this); + return *this; + } + + /// @overload + template + function& + operator=(reference_wrapper<_Functor> __f) noexcept + { + function(__f).swap(*this); + return *this; + } + + // [3.7.2.2] function modifiers + + /** + * @brief Swap the targets of two %function objects. + * @param __x A %function with identical call signature. + * + * Swap the targets of @c this function object and @a __f. This + * function will not throw an %exception. + */ + void swap(function& __x) noexcept + { + std::swap(_M_functor, __x._M_functor); + std::swap(_M_manager, __x._M_manager); + std::swap(_M_invoker, __x._M_invoker); + } + + // [3.7.2.3] function capacity + + /** + * @brief Determine if the %function wrapper has a target. + * + * @return @c true when this %function object contains a target, + * or @c false when it is empty. + * + * This function will not throw an %exception. + */ + explicit operator bool() const noexcept + { return !_M_empty(); } + + // [3.7.2.4] function invocation + + /** + * @brief Invokes the function targeted by @c *this. + * @returns the result of the target. + * @throws bad_function_call when @c !(bool)*this + * + * The function call operator invokes the target function object + * stored by @c this. + */ + _Res operator()(_ArgTypes... __args) const; + +#if __cpp_rtti + // [3.7.2.5] function target access + /** + * @brief Determine the type of the target of this function object + * wrapper. + * + * @returns the type identifier of the target function object, or + * @c typeid(void) if @c !(bool)*this. + * + * This function will not throw an %exception. + */ + const type_info& target_type() const noexcept; + + /** + * @brief Access the stored target function object. + * + * @return Returns a pointer to the stored target function object, + * if @c typeid(_Functor).equals(target_type()); otherwise, a NULL + * pointer. + * + * This function does not throw exceptions. + * + * @{ + */ + template _Functor* target() noexcept; + + template const _Functor* target() const noexcept; + // @} +#endif + + private: + using _Invoker_type = _Res (*)(const _Any_data&, _ArgTypes&&...); + _Invoker_type _M_invoker; + }; + +#if __cpp_deduction_guides >= 201606 + template + struct __function_guide_helper + { }; + + template + struct __function_guide_helper< + _Res (_Tp::*) (_Args...) noexcept(_Nx) + > + { using type = _Res(_Args...); }; + + template + struct __function_guide_helper< + _Res (_Tp::*) (_Args...) & noexcept(_Nx) + > + { using type = _Res(_Args...); }; + + template + struct __function_guide_helper< + _Res (_Tp::*) (_Args...) const noexcept(_Nx) + > + { using type = _Res(_Args...); }; + + template + struct __function_guide_helper< + _Res (_Tp::*) (_Args...) const & noexcept(_Nx) + > + { using type = _Res(_Args...); }; + + template + function(_Res(*)(_ArgTypes...)) -> function<_Res(_ArgTypes...)>; + + template::type> + function(_Functor) -> function<_Signature>; +#endif + + // Out-of-line member definitions. + template + function<_Res(_ArgTypes...)>:: + function(const function& __x) + : _Function_base() + { + if (static_cast(__x)) + { + __x._M_manager(_M_functor, __x._M_functor, __clone_functor); + _M_invoker = __x._M_invoker; + _M_manager = __x._M_manager; + } + } + + template + template + function<_Res(_ArgTypes...)>:: + function(_Functor __f) + : _Function_base() + { + typedef _Function_handler<_Res(_ArgTypes...), _Functor> _My_handler; + + if (_My_handler::_M_not_empty_function(__f)) + { + _My_handler::_M_init_functor(_M_functor, std::move(__f)); + _M_invoker = &_My_handler::_M_invoke; + _M_manager = &_My_handler::_M_manager; + } + } + + template + _Res + function<_Res(_ArgTypes...)>:: + operator()(_ArgTypes... __args) const + { + if (_M_empty()) + __throw_bad_function_call(); + return _M_invoker(_M_functor, std::forward<_ArgTypes>(__args)...); + } + +#if __cpp_rtti + template + const type_info& + function<_Res(_ArgTypes...)>:: + target_type() const noexcept + { + if (_M_manager) + { + _Any_data __typeinfo_result; + _M_manager(__typeinfo_result, _M_functor, __get_type_info); + return *__typeinfo_result._M_access(); + } + else + return typeid(void); + } + + template + template + _Functor* + function<_Res(_ArgTypes...)>:: + target() noexcept + { + const function* __const_this = this; + const _Functor* __func = __const_this->template target<_Functor>(); + return const_cast<_Functor*>(__func); + } + + template + template + const _Functor* + function<_Res(_ArgTypes...)>:: + target() const noexcept + { + if (typeid(_Functor) == target_type() && _M_manager) + { + _Any_data __ptr; + _M_manager(__ptr, _M_functor, __get_functor_ptr); + return __ptr._M_access(); + } + else + return nullptr; + } +#endif + + // [20.7.15.2.6] null pointer comparisons + + /** + * @brief Compares a polymorphic function object wrapper against 0 + * (the NULL pointer). + * @returns @c true if the wrapper has no target, @c false otherwise + * + * This function will not throw an %exception. + */ + template + inline bool + operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept + { return !static_cast(__f); } + +#if __cpp_impl_three_way_comparison < 201907L + /// @overload + template + inline bool + operator==(nullptr_t, const function<_Res(_Args...)>& __f) noexcept + { return !static_cast(__f); } + + /** + * @brief Compares a polymorphic function object wrapper against 0 + * (the NULL pointer). + * @returns @c false if the wrapper has no target, @c true otherwise + * + * This function will not throw an %exception. + */ + template + inline bool + operator!=(const function<_Res(_Args...)>& __f, nullptr_t) noexcept + { return static_cast(__f); } + + /// @overload + template + inline bool + operator!=(nullptr_t, const function<_Res(_Args...)>& __f) noexcept + { return static_cast(__f); } +#endif + + // [20.7.15.2.7] specialized algorithms + + /** + * @brief Swap the targets of two polymorphic function object wrappers. + * + * This function will not throw an %exception. + */ + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2062. Effect contradictions w/o no-throw guarantee of std::function swaps + template + inline void + swap(function<_Res(_Args...)>& __x, function<_Res(_Args...)>& __y) noexcept + { __x.swap(__y); } + +#if __cplusplus >= 201703L + namespace __detail::__variant + { + template struct _Never_valueless_alt; // see + + // Provide the strong exception-safety guarantee when emplacing a + // function into a variant. + template + struct _Never_valueless_alt> + : std::true_type + { }; + } // namespace __detail::__variant +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 +#endif // _GLIBCXX_STD_FUNCTION_H diff --git a/resources/sources/avr-libstdcpp/include/bits/std_mutex.h b/resources/sources/avr-libstdcpp/include/bits/std_mutex.h new file mode 100644 index 000000000..aef12b679 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/std_mutex.h @@ -0,0 +1,176 @@ +// std::mutex implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/std_mutex.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{mutex} + */ + +#ifndef _GLIBCXX_MUTEX_H +#define _GLIBCXX_MUTEX_H 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup mutexes Mutexes + * @ingroup concurrency + * + * Classes for mutex support. + * @{ + */ + +#ifdef _GLIBCXX_HAS_GTHREADS + // Common base class for std::mutex and std::timed_mutex + class __mutex_base + { + protected: + typedef __gthread_mutex_t __native_type; + +#ifdef __GTHREAD_MUTEX_INIT + __native_type _M_mutex = __GTHREAD_MUTEX_INIT; + + constexpr __mutex_base() noexcept = default; +#else + __native_type _M_mutex; + + __mutex_base() noexcept + { + // XXX EAGAIN, ENOMEM, EPERM, EBUSY(may), EINVAL(may) + __GTHREAD_MUTEX_INIT_FUNCTION(&_M_mutex); + } + + ~__mutex_base() noexcept { __gthread_mutex_destroy(&_M_mutex); } +#endif + + __mutex_base(const __mutex_base&) = delete; + __mutex_base& operator=(const __mutex_base&) = delete; + }; + + /// The standard mutex type. + class mutex : private __mutex_base + { + public: + typedef __native_type* native_handle_type; + +#ifdef __GTHREAD_MUTEX_INIT + constexpr +#endif + mutex() noexcept = default; + ~mutex() = default; + + mutex(const mutex&) = delete; + mutex& operator=(const mutex&) = delete; + + void + lock() + { + int __e = __gthread_mutex_lock(&_M_mutex); + + // EINVAL, EAGAIN, EBUSY, EINVAL, EDEADLK(may) + if (__e) + __throw_system_error(__e); + } + + bool + try_lock() noexcept + { + // XXX EINVAL, EAGAIN, EBUSY + return !__gthread_mutex_trylock(&_M_mutex); + } + + void + unlock() + { + // XXX EINVAL, EAGAIN, EPERM + __gthread_mutex_unlock(&_M_mutex); + } + + native_handle_type + native_handle() noexcept + { return &_M_mutex; } + }; + +#endif // _GLIBCXX_HAS_GTHREADS + + /// Do not acquire ownership of the mutex. + struct defer_lock_t { explicit defer_lock_t() = default; }; + + /// Try to acquire ownership of the mutex without blocking. + struct try_to_lock_t { explicit try_to_lock_t() = default; }; + + /// Assume the calling thread has already obtained mutex ownership + /// and manage it. + struct adopt_lock_t { explicit adopt_lock_t() = default; }; + + /// Tag used to prevent a scoped lock from acquiring ownership of a mutex. + _GLIBCXX17_INLINE constexpr defer_lock_t defer_lock { }; + + /// Tag used to prevent a scoped lock from blocking if a mutex is locked. + _GLIBCXX17_INLINE constexpr try_to_lock_t try_to_lock { }; + + /// Tag used to make a scoped lock take ownership of a locked mutex. + _GLIBCXX17_INLINE constexpr adopt_lock_t adopt_lock { }; + + /** @brief A simple scoped lock type. + * + * A lock_guard controls mutex ownership within a scope, releasing + * ownership in the destructor. + */ + template + class lock_guard + { + public: + typedef _Mutex mutex_type; + + explicit lock_guard(mutex_type& __m) : _M_device(__m) + { _M_device.lock(); } + + lock_guard(mutex_type& __m, adopt_lock_t) noexcept : _M_device(__m) + { } // calling thread owns mutex + + ~lock_guard() + { _M_device.unlock(); } + + lock_guard(const lock_guard&) = delete; + lock_guard& operator=(const lock_guard&) = delete; + + private: + mutex_type& _M_device; + }; + + // @} group mutexes +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +#endif // C++11 +#endif // _GLIBCXX_MUTEX_H diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_algo.h b/resources/sources/avr-libstdcpp/include/bits/stl_algo.h new file mode 100644 index 000000000..2eb637e85 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_algo.h @@ -0,0 +1,5884 @@ +// Algorithm implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_algo.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{algorithm} + */ + +#ifndef _STL_ALGO_H +#define _STL_ALGO_H 1 + +#include // for rand +#include +#include +#include // for _Temporary_buffer +#include + +#if __cplusplus >= 201103L +#include +#endif + +// See concept_check.h for the __glibcxx_*_requires macros. + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// Swaps the median value of *__a, *__b and *__c under __comp to *__result + template + _GLIBCXX20_CONSTEXPR + void + __move_median_to_first(_Iterator __result,_Iterator __a, _Iterator __b, + _Iterator __c, _Compare __comp) + { + if (__comp(__a, __b)) + { + if (__comp(__b, __c)) + std::iter_swap(__result, __b); + else if (__comp(__a, __c)) + std::iter_swap(__result, __c); + else + std::iter_swap(__result, __a); + } + else if (__comp(__a, __c)) + std::iter_swap(__result, __a); + else if (__comp(__b, __c)) + std::iter_swap(__result, __c); + else + std::iter_swap(__result, __b); + } + + /// Provided for stable_partition to use. + template + _GLIBCXX20_CONSTEXPR + inline _InputIterator + __find_if_not(_InputIterator __first, _InputIterator __last, + _Predicate __pred) + { + return std::__find_if(__first, __last, + __gnu_cxx::__ops::__negate(__pred), + std::__iterator_category(__first)); + } + + /// Like find_if_not(), but uses and updates a count of the + /// remaining range length instead of comparing against an end + /// iterator. + template + _GLIBCXX20_CONSTEXPR + _InputIterator + __find_if_not_n(_InputIterator __first, _Distance& __len, _Predicate __pred) + { + for (; __len; --__len, (void) ++__first) + if (!__pred(__first)) + break; + return __first; + } + + // set_difference + // set_intersection + // set_symmetric_difference + // set_union + // for_each + // find + // find_if + // find_first_of + // adjacent_find + // count + // count_if + // search + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator1 + __search(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2, + _BinaryPredicate __predicate) + { + // Test for empty ranges + if (__first1 == __last1 || __first2 == __last2) + return __first1; + + // Test for a pattern of length 1. + _ForwardIterator2 __p1(__first2); + if (++__p1 == __last2) + return std::__find_if(__first1, __last1, + __gnu_cxx::__ops::__iter_comp_iter(__predicate, __first2)); + + // General case. + _ForwardIterator1 __current = __first1; + + for (;;) + { + __first1 = + std::__find_if(__first1, __last1, + __gnu_cxx::__ops::__iter_comp_iter(__predicate, __first2)); + + if (__first1 == __last1) + return __last1; + + _ForwardIterator2 __p = __p1; + __current = __first1; + if (++__current == __last1) + return __last1; + + while (__predicate(__current, __p)) + { + if (++__p == __last2) + return __first1; + if (++__current == __last1) + return __last1; + } + ++__first1; + } + return __first1; + } + + // search_n + + /** + * This is an helper function for search_n overloaded for forward iterators. + */ + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __search_n_aux(_ForwardIterator __first, _ForwardIterator __last, + _Integer __count, _UnaryPredicate __unary_pred, + std::forward_iterator_tag) + { + __first = std::__find_if(__first, __last, __unary_pred); + while (__first != __last) + { + typename iterator_traits<_ForwardIterator>::difference_type + __n = __count; + _ForwardIterator __i = __first; + ++__i; + while (__i != __last && __n != 1 && __unary_pred(__i)) + { + ++__i; + --__n; + } + if (__n == 1) + return __first; + if (__i == __last) + return __last; + __first = std::__find_if(++__i, __last, __unary_pred); + } + return __last; + } + + /** + * This is an helper function for search_n overloaded for random access + * iterators. + */ + template + _GLIBCXX20_CONSTEXPR + _RandomAccessIter + __search_n_aux(_RandomAccessIter __first, _RandomAccessIter __last, + _Integer __count, _UnaryPredicate __unary_pred, + std::random_access_iterator_tag) + { + typedef typename std::iterator_traits<_RandomAccessIter>::difference_type + _DistanceType; + + _DistanceType __tailSize = __last - __first; + _DistanceType __remainder = __count; + + while (__remainder <= __tailSize) // the main loop... + { + __first += __remainder; + __tailSize -= __remainder; + // __first here is always pointing to one past the last element of + // next possible match. + _RandomAccessIter __backTrack = __first; + while (__unary_pred(--__backTrack)) + { + if (--__remainder == 0) + return (__first - __count); // Success + } + __remainder = __count + 1 - (__first - __backTrack); + } + return __last; // Failure + } + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __search_n(_ForwardIterator __first, _ForwardIterator __last, + _Integer __count, + _UnaryPredicate __unary_pred) + { + if (__count <= 0) + return __first; + + if (__count == 1) + return std::__find_if(__first, __last, __unary_pred); + + return std::__search_n_aux(__first, __last, __count, __unary_pred, + std::__iterator_category(__first)); + } + + // find_end for forward iterators. + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator1 + __find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2, + forward_iterator_tag, forward_iterator_tag, + _BinaryPredicate __comp) + { + if (__first2 == __last2) + return __last1; + + _ForwardIterator1 __result = __last1; + while (1) + { + _ForwardIterator1 __new_result + = std::__search(__first1, __last1, __first2, __last2, __comp); + if (__new_result == __last1) + return __result; + else + { + __result = __new_result; + __first1 = __new_result; + ++__first1; + } + } + } + + // find_end for bidirectional iterators (much faster). + template + _GLIBCXX20_CONSTEXPR + _BidirectionalIterator1 + __find_end(_BidirectionalIterator1 __first1, + _BidirectionalIterator1 __last1, + _BidirectionalIterator2 __first2, + _BidirectionalIterator2 __last2, + bidirectional_iterator_tag, bidirectional_iterator_tag, + _BinaryPredicate __comp) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator1>) + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator2>) + + typedef reverse_iterator<_BidirectionalIterator1> _RevIterator1; + typedef reverse_iterator<_BidirectionalIterator2> _RevIterator2; + + _RevIterator1 __rlast1(__first1); + _RevIterator2 __rlast2(__first2); + _RevIterator1 __rresult = std::__search(_RevIterator1(__last1), __rlast1, + _RevIterator2(__last2), __rlast2, + __comp); + + if (__rresult == __rlast1) + return __last1; + else + { + _BidirectionalIterator1 __result = __rresult.base(); + std::advance(__result, -std::distance(__first2, __last2)); + return __result; + } + } + + /** + * @brief Find last matching subsequence in a sequence. + * @ingroup non_mutating_algorithms + * @param __first1 Start of range to search. + * @param __last1 End of range to search. + * @param __first2 Start of sequence to match. + * @param __last2 End of sequence to match. + * @return The last iterator @c i in the range + * @p [__first1,__last1-(__last2-__first2)) such that @c *(i+N) == + * @p *(__first2+N) for each @c N in the range @p + * [0,__last2-__first2), or @p __last1 if no such iterator exists. + * + * Searches the range @p [__first1,__last1) for a sub-sequence that + * compares equal value-by-value with the sequence given by @p + * [__first2,__last2) and returns an iterator to the __first + * element of the sub-sequence, or @p __last1 if the sub-sequence + * is not found. The sub-sequence will be the last such + * subsequence contained in [__first1,__last1). + * + * Because the sub-sequence must lie completely within the range @p + * [__first1,__last1) it must start at a position less than @p + * __last1-(__last2-__first2) where @p __last2-__first2 is the + * length of the sub-sequence. This means that the returned + * iterator @c i will be in the range @p + * [__first1,__last1-(__last2-__first2)) + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator1 + find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_ForwardIterator1>::value_type, + typename iterator_traits<_ForwardIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__find_end(__first1, __last1, __first2, __last2, + std::__iterator_category(__first1), + std::__iterator_category(__first2), + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Find last matching subsequence in a sequence using a predicate. + * @ingroup non_mutating_algorithms + * @param __first1 Start of range to search. + * @param __last1 End of range to search. + * @param __first2 Start of sequence to match. + * @param __last2 End of sequence to match. + * @param __comp The predicate to use. + * @return The last iterator @c i in the range @p + * [__first1,__last1-(__last2-__first2)) such that @c + * predicate(*(i+N), @p (__first2+N)) is true for each @c N in the + * range @p [0,__last2-__first2), or @p __last1 if no such iterator + * exists. + * + * Searches the range @p [__first1,__last1) for a sub-sequence that + * compares equal value-by-value with the sequence given by @p + * [__first2,__last2) using comp as a predicate and returns an + * iterator to the first element of the sub-sequence, or @p __last1 + * if the sub-sequence is not found. The sub-sequence will be the + * last such subsequence contained in [__first,__last1). + * + * Because the sub-sequence must lie completely within the range @p + * [__first1,__last1) it must start at a position less than @p + * __last1-(__last2-__first2) where @p __last2-__first2 is the + * length of the sub-sequence. This means that the returned + * iterator @c i will be in the range @p + * [__first1,__last1-(__last2-__first2)) + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator1 + find_end(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2, + _BinaryPredicate __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator1>::value_type, + typename iterator_traits<_ForwardIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__find_end(__first1, __last1, __first2, __last2, + std::__iterator_category(__first1), + std::__iterator_category(__first2), + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + +#if __cplusplus >= 201103L + /** + * @brief Checks that a predicate is true for all the elements + * of a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return True if the check is true, false otherwise. + * + * Returns true if @p __pred is true for each element in the range + * @p [__first,__last), and false otherwise. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + all_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) + { return __last == std::find_if_not(__first, __last, __pred); } + + /** + * @brief Checks that a predicate is false for all the elements + * of a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return True if the check is true, false otherwise. + * + * Returns true if @p __pred is false for each element in the range + * @p [__first,__last), and false otherwise. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + none_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) + { return __last == _GLIBCXX_STD_A::find_if(__first, __last, __pred); } + + /** + * @brief Checks that a predicate is true for at least one element + * of a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return True if the check is true, false otherwise. + * + * Returns true if an element exists in the range @p + * [__first,__last) such that @p __pred is true, and false + * otherwise. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + any_of(_InputIterator __first, _InputIterator __last, _Predicate __pred) + { return !std::none_of(__first, __last, __pred); } + + /** + * @brief Find the first element in a sequence for which a + * predicate is false. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return The first iterator @c i in the range @p [__first,__last) + * such that @p __pred(*i) is false, or @p __last if no such iterator exists. + */ + template + _GLIBCXX20_CONSTEXPR + inline _InputIterator + find_if_not(_InputIterator __first, _InputIterator __last, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + return std::__find_if_not(__first, __last, + __gnu_cxx::__ops::__pred_iter(__pred)); + } + + /** + * @brief Checks whether the sequence is partitioned. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return True if the range @p [__first,__last) is partioned by @p __pred, + * i.e. if all elements that satisfy @p __pred appear before those that + * do not. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_partitioned(_InputIterator __first, _InputIterator __last, + _Predicate __pred) + { + __first = std::find_if_not(__first, __last, __pred); + if (__first == __last) + return true; + ++__first; + return std::none_of(__first, __last, __pred); + } + + /** + * @brief Find the partition point of a partitioned range. + * @ingroup mutating_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __pred A predicate. + * @return An iterator @p mid such that @p all_of(__first, mid, __pred) + * and @p none_of(mid, __last, __pred) are both true. + */ + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + partition_point(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_ForwardIterator>::value_type>) + + // A specific debug-mode test will be necessary... + __glibcxx_requires_valid_range(__first, __last); + + typedef typename iterator_traits<_ForwardIterator>::difference_type + _DistanceType; + + _DistanceType __len = std::distance(__first, __last); + + while (__len > 0) + { + _DistanceType __half = __len >> 1; + _ForwardIterator __middle = __first; + std::advance(__middle, __half); + if (__pred(*__middle)) + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + else + __len = __half; + } + return __first; + } +#endif + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __remove_copy_if(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _Predicate __pred) + { + for (; __first != __last; ++__first) + if (!__pred(__first)) + { + *__result = *__first; + ++__result; + } + return __result; + } + + /** + * @brief Copy a sequence, removing elements of a given value. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __value The value to be removed. + * @return An iterator designating the end of the resulting sequence. + * + * Copies each element in the range @p [__first,__last) not equal + * to @p __value to the range beginning at @p __result. + * remove_copy() is stable, so the relative order of elements that + * are copied is unchanged. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + remove_copy(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, const _Tp& __value) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__remove_copy_if(__first, __last, __result, + __gnu_cxx::__ops::__iter_equals_val(__value)); + } + + /** + * @brief Copy a sequence, removing elements for which a predicate is true. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __pred A predicate. + * @return An iterator designating the end of the resulting sequence. + * + * Copies each element in the range @p [__first,__last) for which + * @p __pred returns false to the range beginning at @p __result. + * + * remove_copy_if() is stable, so the relative order of elements that are + * copied is unchanged. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + remove_copy_if(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__remove_copy_if(__first, __last, __result, + __gnu_cxx::__ops::__pred_iter(__pred)); + } + +#if __cplusplus >= 201103L + /** + * @brief Copy the elements of a sequence for which a predicate is true. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __pred A predicate. + * @return An iterator designating the end of the resulting sequence. + * + * Copies each element in the range @p [__first,__last) for which + * @p __pred returns true to the range beginning at @p __result. + * + * copy_if() is stable, so the relative order of elements that are + * copied is unchanged. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + copy_if(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + if (__pred(*__first)) + { + *__result = *__first; + ++__result; + } + return __result; + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __copy_n_a(_InputIterator __first, _Size __n, _OutputIterator __result) + { + if (__n > 0) + { + while (true) + { + *__result = *__first; + ++__result; + if (--__n > 0) + ++__first; + else + break; + } + } + return __result; + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __copy_n(_InputIterator __first, _Size __n, + _OutputIterator __result, input_iterator_tag) + { + return std::__niter_wrap(__result, + __copy_n_a(__first, __n, + std::__niter_base(__result))); + } + + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + __copy_n(_RandomAccessIterator __first, _Size __n, + _OutputIterator __result, random_access_iterator_tag) + { return std::copy(__first, __first + __n, __result); } + + /** + * @brief Copies the range [first,first+n) into [result,result+n). + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __n The number of elements to copy. + * @param __result An output iterator. + * @return result+n. + * + * This inline function will boil down to a call to @c memmove whenever + * possible. Failing that, if random access iterators are passed, then the + * loop count will be known (and therefore a candidate for compiler + * optimizations such as unrolling). + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + copy_n(_InputIterator __first, _Size __n, _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_can_increment(__first, __n); + __glibcxx_requires_can_increment(__result, __n); + + return std::__copy_n(__first, __n, __result, + std::__iterator_category(__first)); + } + + /** + * @brief Copy the elements of a sequence to separate output sequences + * depending on the truth value of a predicate. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __out_true An output iterator. + * @param __out_false An output iterator. + * @param __pred A predicate. + * @return A pair designating the ends of the resulting sequences. + * + * Copies each element in the range @p [__first,__last) for which + * @p __pred returns true to the range beginning at @p out_true + * and each element for which @p __pred returns false to @p __out_false. + */ + template + _GLIBCXX20_CONSTEXPR + pair<_OutputIterator1, _OutputIterator2> + partition_copy(_InputIterator __first, _InputIterator __last, + _OutputIterator1 __out_true, _OutputIterator2 __out_false, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator1, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator2, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + if (__pred(*__first)) + { + *__out_true = *__first; + ++__out_true; + } + else + { + *__out_false = *__first; + ++__out_false; + } + + return pair<_OutputIterator1, _OutputIterator2>(__out_true, __out_false); + } +#endif // C++11 + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __remove_if(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred) + { + __first = std::__find_if(__first, __last, __pred); + if (__first == __last) + return __first; + _ForwardIterator __result = __first; + ++__first; + for (; __first != __last; ++__first) + if (!__pred(__first)) + { + *__result = _GLIBCXX_MOVE(*__first); + ++__result; + } + return __result; + } + + /** + * @brief Remove elements from a sequence. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __value The value to be removed. + * @return An iterator designating the end of the resulting sequence. + * + * All elements equal to @p __value are removed from the range + * @p [__first,__last). + * + * remove() is stable, so the relative order of elements that are + * not removed is unchanged. + * + * Elements between the end of the resulting sequence and @p __last + * are still present, but their value is unspecified. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + remove(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __value) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__remove_if(__first, __last, + __gnu_cxx::__ops::__iter_equals_val(__value)); + } + + /** + * @brief Remove elements from a sequence using a predicate. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __pred A predicate. + * @return An iterator designating the end of the resulting sequence. + * + * All elements for which @p __pred returns true are removed from the range + * @p [__first,__last). + * + * remove_if() is stable, so the relative order of elements that are + * not removed is unchanged. + * + * Elements between the end of the resulting sequence and @p __last + * are still present, but their value is unspecified. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + remove_if(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__remove_if(__first, __last, + __gnu_cxx::__ops::__pred_iter(__pred)); + } + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __adjacent_find(_ForwardIterator __first, _ForwardIterator __last, + _BinaryPredicate __binary_pred) + { + if (__first == __last) + return __last; + _ForwardIterator __next = __first; + while (++__next != __last) + { + if (__binary_pred(__first, __next)) + return __first; + __first = __next; + } + return __last; + } + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __unique(_ForwardIterator __first, _ForwardIterator __last, + _BinaryPredicate __binary_pred) + { + // Skip the beginning, if already unique. + __first = std::__adjacent_find(__first, __last, __binary_pred); + if (__first == __last) + return __last; + + // Do the real copy work. + _ForwardIterator __dest = __first; + ++__first; + while (++__first != __last) + if (!__binary_pred(__dest, __first)) + *++__dest = _GLIBCXX_MOVE(*__first); + return ++__dest; + } + + /** + * @brief Remove consecutive duplicate values from a sequence. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @return An iterator designating the end of the resulting sequence. + * + * Removes all but the first element from each group of consecutive + * values that compare equal. + * unique() is stable, so the relative order of elements that are + * not removed is unchanged. + * Elements between the end of the resulting sequence and @p __last + * are still present, but their value is unspecified. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + unique(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_EqualityComparableConcept< + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__unique(__first, __last, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Remove consecutive values from a sequence using a predicate. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __binary_pred A binary predicate. + * @return An iterator designating the end of the resulting sequence. + * + * Removes all but the first element from each group of consecutive + * values for which @p __binary_pred returns true. + * unique() is stable, so the relative order of elements that are + * not removed is unchanged. + * Elements between the end of the resulting sequence and @p __last + * are still present, but their value is unspecified. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + unique(_ForwardIterator __first, _ForwardIterator __last, + _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__unique(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__binary_pred)); + } + + /** + * This is an uglified + * unique_copy(_InputIterator, _InputIterator, _OutputIterator, + * _BinaryPredicate) + * overloaded for forward iterators and output iterator as result. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __unique_copy(_ForwardIterator __first, _ForwardIterator __last, + _OutputIterator __result, _BinaryPredicate __binary_pred, + forward_iterator_tag, output_iterator_tag) + { + // concept requirements -- iterators already checked + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + + _ForwardIterator __next = __first; + *__result = *__first; + while (++__next != __last) + if (!__binary_pred(__first, __next)) + { + __first = __next; + *++__result = *__first; + } + return ++__result; + } + + /** + * This is an uglified + * unique_copy(_InputIterator, _InputIterator, _OutputIterator, + * _BinaryPredicate) + * overloaded for input iterators and output iterator as result. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __unique_copy(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _BinaryPredicate __binary_pred, + input_iterator_tag, output_iterator_tag) + { + // concept requirements -- iterators already checked + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_InputIterator>::value_type, + typename iterator_traits<_InputIterator>::value_type>) + + typename iterator_traits<_InputIterator>::value_type __value = *__first; + __decltype(__gnu_cxx::__ops::__iter_comp_val(__binary_pred)) + __rebound_pred + = __gnu_cxx::__ops::__iter_comp_val(__binary_pred); + *__result = __value; + while (++__first != __last) + if (!__rebound_pred(__first, __value)) + { + __value = *__first; + *++__result = __value; + } + return ++__result; + } + + /** + * This is an uglified + * unique_copy(_InputIterator, _InputIterator, _OutputIterator, + * _BinaryPredicate) + * overloaded for input iterators and forward iterator as result. + */ + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __unique_copy(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result, _BinaryPredicate __binary_pred, + input_iterator_tag, forward_iterator_tag) + { + // concept requirements -- iterators already checked + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_InputIterator>::value_type>) + *__result = *__first; + while (++__first != __last) + if (!__binary_pred(__result, __first)) + *++__result = *__first; + return ++__result; + } + + /** + * This is an uglified reverse(_BidirectionalIterator, + * _BidirectionalIterator) + * overloaded for bidirectional iterators. + */ + template + _GLIBCXX20_CONSTEXPR + void + __reverse(_BidirectionalIterator __first, _BidirectionalIterator __last, + bidirectional_iterator_tag) + { + while (true) + if (__first == __last || __first == --__last) + return; + else + { + std::iter_swap(__first, __last); + ++__first; + } + } + + /** + * This is an uglified reverse(_BidirectionalIterator, + * _BidirectionalIterator) + * overloaded for random access iterators. + */ + template + _GLIBCXX20_CONSTEXPR + void + __reverse(_RandomAccessIterator __first, _RandomAccessIterator __last, + random_access_iterator_tag) + { + if (__first == __last) + return; + --__last; + while (__first < __last) + { + std::iter_swap(__first, __last); + ++__first; + --__last; + } + } + + /** + * @brief Reverse a sequence. + * @ingroup mutating_algorithms + * @param __first A bidirectional iterator. + * @param __last A bidirectional iterator. + * @return reverse() returns no value. + * + * Reverses the order of the elements in the range @p [__first,__last), + * so that the first element becomes the last etc. + * For every @c i such that @p 0<=i<=(__last-__first)/2), @p reverse() + * swaps @p *(__first+i) and @p *(__last-(i+1)) + */ + template + _GLIBCXX20_CONSTEXPR + inline void + reverse(_BidirectionalIterator __first, _BidirectionalIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_requires_valid_range(__first, __last); + std::__reverse(__first, __last, std::__iterator_category(__first)); + } + + /** + * @brief Copy a sequence, reversing its elements. + * @ingroup mutating_algorithms + * @param __first A bidirectional iterator. + * @param __last A bidirectional iterator. + * @param __result An output iterator. + * @return An iterator designating the end of the resulting sequence. + * + * Copies the elements in the range @p [__first,__last) to the + * range @p [__result,__result+(__last-__first)) such that the + * order of the elements is reversed. For every @c i such that @p + * 0<=i<=(__last-__first), @p reverse_copy() performs the + * assignment @p *(__result+(__last-__first)-1-i) = *(__first+i). + * The ranges @p [__first,__last) and @p + * [__result,__result+(__last-__first)) must not overlap. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + reverse_copy(_BidirectionalIterator __first, _BidirectionalIterator __last, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + while (__first != __last) + { + --__last; + *__result = *__last; + ++__result; + } + return __result; + } + + /** + * This is a helper function for the rotate algorithm specialized on RAIs. + * It returns the greatest common divisor of two integer values. + */ + template + _GLIBCXX20_CONSTEXPR + _EuclideanRingElement + __gcd(_EuclideanRingElement __m, _EuclideanRingElement __n) + { + while (__n != 0) + { + _EuclideanRingElement __t = __m % __n; + __m = __n; + __n = __t; + } + return __m; + } + + inline namespace _V2 + { + + /// This is a helper function for the rotate algorithm. + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __rotate(_ForwardIterator __first, + _ForwardIterator __middle, + _ForwardIterator __last, + forward_iterator_tag) + { + if (__first == __middle) + return __last; + else if (__last == __middle) + return __first; + + _ForwardIterator __first2 = __middle; + do + { + std::iter_swap(__first, __first2); + ++__first; + ++__first2; + if (__first == __middle) + __middle = __first2; + } + while (__first2 != __last); + + _ForwardIterator __ret = __first; + + __first2 = __middle; + + while (__first2 != __last) + { + std::iter_swap(__first, __first2); + ++__first; + ++__first2; + if (__first == __middle) + __middle = __first2; + else if (__first2 == __last) + __first2 = __middle; + } + return __ret; + } + + /// This is a helper function for the rotate algorithm. + template + _GLIBCXX20_CONSTEXPR + _BidirectionalIterator + __rotate(_BidirectionalIterator __first, + _BidirectionalIterator __middle, + _BidirectionalIterator __last, + bidirectional_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept< + _BidirectionalIterator>) + + if (__first == __middle) + return __last; + else if (__last == __middle) + return __first; + + std::__reverse(__first, __middle, bidirectional_iterator_tag()); + std::__reverse(__middle, __last, bidirectional_iterator_tag()); + + while (__first != __middle && __middle != __last) + { + std::iter_swap(__first, --__last); + ++__first; + } + + if (__first == __middle) + { + std::__reverse(__middle, __last, bidirectional_iterator_tag()); + return __last; + } + else + { + std::__reverse(__first, __middle, bidirectional_iterator_tag()); + return __first; + } + } + + /// This is a helper function for the rotate algorithm. + template + _GLIBCXX20_CONSTEXPR + _RandomAccessIterator + __rotate(_RandomAccessIterator __first, + _RandomAccessIterator __middle, + _RandomAccessIterator __last, + random_access_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + + if (__first == __middle) + return __last; + else if (__last == __middle) + return __first; + + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _Distance; + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _ValueType; + + _Distance __n = __last - __first; + _Distance __k = __middle - __first; + + if (__k == __n - __k) + { + std::swap_ranges(__first, __middle, __middle); + return __middle; + } + + _RandomAccessIterator __p = __first; + _RandomAccessIterator __ret = __first + (__last - __middle); + + for (;;) + { + if (__k < __n - __k) + { + if (__is_pod(_ValueType) && __k == 1) + { + _ValueType __t = _GLIBCXX_MOVE(*__p); + _GLIBCXX_MOVE3(__p + 1, __p + __n, __p); + *(__p + __n - 1) = _GLIBCXX_MOVE(__t); + return __ret; + } + _RandomAccessIterator __q = __p + __k; + for (_Distance __i = 0; __i < __n - __k; ++ __i) + { + std::iter_swap(__p, __q); + ++__p; + ++__q; + } + __n %= __k; + if (__n == 0) + return __ret; + std::swap(__n, __k); + __k = __n - __k; + } + else + { + __k = __n - __k; + if (__is_pod(_ValueType) && __k == 1) + { + _ValueType __t = _GLIBCXX_MOVE(*(__p + __n - 1)); + _GLIBCXX_MOVE_BACKWARD3(__p, __p + __n - 1, __p + __n); + *__p = _GLIBCXX_MOVE(__t); + return __ret; + } + _RandomAccessIterator __q = __p + __n; + __p = __q - __k; + for (_Distance __i = 0; __i < __n - __k; ++ __i) + { + --__p; + --__q; + std::iter_swap(__p, __q); + } + __n %= __k; + if (__n == 0) + return __ret; + std::swap(__n, __k); + } + } + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 488. rotate throws away useful information + /** + * @brief Rotate the elements of a sequence. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __middle A forward iterator. + * @param __last A forward iterator. + * @return first + (last - middle). + * + * Rotates the elements of the range @p [__first,__last) by + * @p (__middle - __first) positions so that the element at @p __middle + * is moved to @p __first, the element at @p __middle+1 is moved to + * @p __first+1 and so on for each element in the range + * @p [__first,__last). + * + * This effectively swaps the ranges @p [__first,__middle) and + * @p [__middle,__last). + * + * Performs + * @p *(__first+(n+(__last-__middle))%(__last-__first))=*(__first+n) + * for each @p n in the range @p [0,__last-__first). + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + rotate(_ForwardIterator __first, _ForwardIterator __middle, + _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_requires_valid_range(__first, __middle); + __glibcxx_requires_valid_range(__middle, __last); + + return std::__rotate(__first, __middle, __last, + std::__iterator_category(__first)); + } + + } // namespace _V2 + + /** + * @brief Copy a sequence, rotating its elements. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __middle A forward iterator. + * @param __last A forward iterator. + * @param __result An output iterator. + * @return An iterator designating the end of the resulting sequence. + * + * Copies the elements of the range @p [__first,__last) to the + * range beginning at @result, rotating the copied elements by + * @p (__middle-__first) positions so that the element at @p __middle + * is moved to @p __result, the element at @p __middle+1 is moved + * to @p __result+1 and so on for each element in the range @p + * [__first,__last). + * + * Performs + * @p *(__result+(n+(__last-__middle))%(__last-__first))=*(__first+n) + * for each @p n in the range @p [0,__last-__first). + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + rotate_copy(_ForwardIterator __first, _ForwardIterator __middle, + _ForwardIterator __last, _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __middle); + __glibcxx_requires_valid_range(__middle, __last); + + return std::copy(__first, __middle, + std::copy(__middle, __last, __result)); + } + + /// This is a helper function... + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __partition(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred, forward_iterator_tag) + { + if (__first == __last) + return __first; + + while (__pred(*__first)) + if (++__first == __last) + return __first; + + _ForwardIterator __next = __first; + + while (++__next != __last) + if (__pred(*__next)) + { + std::iter_swap(__first, __next); + ++__first; + } + + return __first; + } + + /// This is a helper function... + template + _GLIBCXX20_CONSTEXPR + _BidirectionalIterator + __partition(_BidirectionalIterator __first, _BidirectionalIterator __last, + _Predicate __pred, bidirectional_iterator_tag) + { + while (true) + { + while (true) + if (__first == __last) + return __first; + else if (__pred(*__first)) + ++__first; + else + break; + --__last; + while (true) + if (__first == __last) + return __first; + else if (!bool(__pred(*__last))) + --__last; + else + break; + std::iter_swap(__first, __last); + ++__first; + } + } + + // partition + + /// This is a helper function... + /// Requires __first != __last and !__pred(__first) + /// and __len == distance(__first, __last). + /// + /// !__pred(__first) allows us to guarantee that we don't + /// move-assign an element onto itself. + template + _ForwardIterator + __stable_partition_adaptive(_ForwardIterator __first, + _ForwardIterator __last, + _Predicate __pred, _Distance __len, + _Pointer __buffer, + _Distance __buffer_size) + { + if (__len == 1) + return __first; + + if (__len <= __buffer_size) + { + _ForwardIterator __result1 = __first; + _Pointer __result2 = __buffer; + + // The precondition guarantees that !__pred(__first), so + // move that element to the buffer before starting the loop. + // This ensures that we only call __pred once per element. + *__result2 = _GLIBCXX_MOVE(*__first); + ++__result2; + ++__first; + for (; __first != __last; ++__first) + if (__pred(__first)) + { + *__result1 = _GLIBCXX_MOVE(*__first); + ++__result1; + } + else + { + *__result2 = _GLIBCXX_MOVE(*__first); + ++__result2; + } + + _GLIBCXX_MOVE3(__buffer, __result2, __result1); + return __result1; + } + + _ForwardIterator __middle = __first; + std::advance(__middle, __len / 2); + _ForwardIterator __left_split = + std::__stable_partition_adaptive(__first, __middle, __pred, + __len / 2, __buffer, + __buffer_size); + + // Advance past true-predicate values to satisfy this + // function's preconditions. + _Distance __right_len = __len - __len / 2; + _ForwardIterator __right_split = + std::__find_if_not_n(__middle, __right_len, __pred); + + if (__right_len) + __right_split = + std::__stable_partition_adaptive(__right_split, __last, __pred, + __right_len, + __buffer, __buffer_size); + + return std::rotate(__left_split, __middle, __right_split); + } + + template + _ForwardIterator + __stable_partition(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred) + { + __first = std::__find_if_not(__first, __last, __pred); + + if (__first == __last) + return __first; + + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + typedef typename iterator_traits<_ForwardIterator>::difference_type + _DistanceType; + + _Temporary_buffer<_ForwardIterator, _ValueType> + __buf(__first, std::distance(__first, __last)); + return + std::__stable_partition_adaptive(__first, __last, __pred, + _DistanceType(__buf.requested_size()), + __buf.begin(), + _DistanceType(__buf.size())); + } + + /** + * @brief Move elements for which a predicate is true to the beginning + * of a sequence, preserving relative ordering. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __pred A predicate functor. + * @return An iterator @p middle such that @p __pred(i) is true for each + * iterator @p i in the range @p [first,middle) and false for each @p i + * in the range @p [middle,last). + * + * Performs the same function as @p partition() with the additional + * guarantee that the relative ordering of elements in each group is + * preserved, so any two elements @p x and @p y in the range + * @p [__first,__last) such that @p __pred(x)==__pred(y) will have the same + * relative ordering after calling @p stable_partition(). + */ + template + inline _ForwardIterator + stable_partition(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__stable_partition(__first, __last, + __gnu_cxx::__ops::__pred_iter(__pred)); + } + + /// This is a helper function for the sort routines. + template + _GLIBCXX20_CONSTEXPR + void + __heap_select(_RandomAccessIterator __first, + _RandomAccessIterator __middle, + _RandomAccessIterator __last, _Compare __comp) + { + std::__make_heap(__first, __middle, __comp); + for (_RandomAccessIterator __i = __middle; __i < __last; ++__i) + if (__comp(__i, __first)) + std::__pop_heap(__first, __middle, __i, __comp); + } + + // partial_sort + + template + _GLIBCXX20_CONSTEXPR + _RandomAccessIterator + __partial_sort_copy(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __result_first, + _RandomAccessIterator __result_last, + _Compare __comp) + { + typedef typename iterator_traits<_InputIterator>::value_type + _InputValueType; + typedef iterator_traits<_RandomAccessIterator> _RItTraits; + typedef typename _RItTraits::difference_type _DistanceType; + + if (__result_first == __result_last) + return __result_last; + _RandomAccessIterator __result_real_last = __result_first; + while (__first != __last && __result_real_last != __result_last) + { + *__result_real_last = *__first; + ++__result_real_last; + ++__first; + } + + std::__make_heap(__result_first, __result_real_last, __comp); + while (__first != __last) + { + if (__comp(__first, __result_first)) + std::__adjust_heap(__result_first, _DistanceType(0), + _DistanceType(__result_real_last + - __result_first), + _InputValueType(*__first), __comp); + ++__first; + } + std::__sort_heap(__result_first, __result_real_last, __comp); + return __result_real_last; + } + + /** + * @brief Copy the smallest elements of a sequence. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __result_first A random-access iterator. + * @param __result_last Another random-access iterator. + * @return An iterator indicating the end of the resulting sequence. + * + * Copies and sorts the smallest N values from the range @p [__first,__last) + * to the range beginning at @p __result_first, where the number of + * elements to be copied, @p N, is the smaller of @p (__last-__first) and + * @p (__result_last-__result_first). + * After the sort if @e i and @e j are iterators in the range + * @p [__result_first,__result_first+N) such that i precedes j then + * *j<*i is false. + * The value returned is @p __result_first+N. + */ + template + _GLIBCXX20_CONSTEXPR + inline _RandomAccessIterator + partial_sort_copy(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __result_first, + _RandomAccessIterator __result_last) + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + typedef typename iterator_traits<_InputIterator>::value_type + _InputValueType; + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _OutputValueType; +#endif + + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_ConvertibleConcept<_InputValueType, + _OutputValueType>) + __glibcxx_function_requires(_LessThanOpConcept<_InputValueType, + _OutputValueType>) + __glibcxx_function_requires(_LessThanComparableConcept<_OutputValueType>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + __glibcxx_requires_valid_range(__result_first, __result_last); + + return std::__partial_sort_copy(__first, __last, + __result_first, __result_last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Copy the smallest elements of a sequence using a predicate for + * comparison. + * @ingroup sorting_algorithms + * @param __first An input iterator. + * @param __last Another input iterator. + * @param __result_first A random-access iterator. + * @param __result_last Another random-access iterator. + * @param __comp A comparison functor. + * @return An iterator indicating the end of the resulting sequence. + * + * Copies and sorts the smallest N values from the range @p [__first,__last) + * to the range beginning at @p result_first, where the number of + * elements to be copied, @p N, is the smaller of @p (__last-__first) and + * @p (__result_last-__result_first). + * After the sort if @e i and @e j are iterators in the range + * @p [__result_first,__result_first+N) such that i precedes j then + * @p __comp(*j,*i) is false. + * The value returned is @p __result_first+N. + */ + template + _GLIBCXX20_CONSTEXPR + inline _RandomAccessIterator + partial_sort_copy(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __result_first, + _RandomAccessIterator __result_last, + _Compare __comp) + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + typedef typename iterator_traits<_InputIterator>::value_type + _InputValueType; + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _OutputValueType; +#endif + + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_ConvertibleConcept<_InputValueType, + _OutputValueType>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + _InputValueType, _OutputValueType>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + _OutputValueType, _OutputValueType>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + __glibcxx_requires_valid_range(__result_first, __result_last); + + return std::__partial_sort_copy(__first, __last, + __result_first, __result_last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + /// This is a helper function for the sort routine. + template + _GLIBCXX20_CONSTEXPR + void + __unguarded_linear_insert(_RandomAccessIterator __last, + _Compare __comp) + { + typename iterator_traits<_RandomAccessIterator>::value_type + __val = _GLIBCXX_MOVE(*__last); + _RandomAccessIterator __next = __last; + --__next; + while (__comp(__val, __next)) + { + *__last = _GLIBCXX_MOVE(*__next); + __last = __next; + --__next; + } + *__last = _GLIBCXX_MOVE(__val); + } + + /// This is a helper function for the sort routine. + template + _GLIBCXX20_CONSTEXPR + void + __insertion_sort(_RandomAccessIterator __first, + _RandomAccessIterator __last, _Compare __comp) + { + if (__first == __last) return; + + for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i) + { + if (__comp(__i, __first)) + { + typename iterator_traits<_RandomAccessIterator>::value_type + __val = _GLIBCXX_MOVE(*__i); + _GLIBCXX_MOVE_BACKWARD3(__first, __i, __i + 1); + *__first = _GLIBCXX_MOVE(__val); + } + else + std::__unguarded_linear_insert(__i, + __gnu_cxx::__ops::__val_comp_iter(__comp)); + } + } + + /// This is a helper function for the sort routine. + template + _GLIBCXX20_CONSTEXPR + inline void + __unguarded_insertion_sort(_RandomAccessIterator __first, + _RandomAccessIterator __last, _Compare __comp) + { + for (_RandomAccessIterator __i = __first; __i != __last; ++__i) + std::__unguarded_linear_insert(__i, + __gnu_cxx::__ops::__val_comp_iter(__comp)); + } + + /** + * @doctodo + * This controls some aspect of the sort routines. + */ + enum { _S_threshold = 16 }; + + /// This is a helper function for the sort routine. + template + _GLIBCXX20_CONSTEXPR + void + __final_insertion_sort(_RandomAccessIterator __first, + _RandomAccessIterator __last, _Compare __comp) + { + if (__last - __first > int(_S_threshold)) + { + std::__insertion_sort(__first, __first + int(_S_threshold), __comp); + std::__unguarded_insertion_sort(__first + int(_S_threshold), __last, + __comp); + } + else + std::__insertion_sort(__first, __last, __comp); + } + + /// This is a helper function... + template + _GLIBCXX20_CONSTEXPR + _RandomAccessIterator + __unguarded_partition(_RandomAccessIterator __first, + _RandomAccessIterator __last, + _RandomAccessIterator __pivot, _Compare __comp) + { + while (true) + { + while (__comp(__first, __pivot)) + ++__first; + --__last; + while (__comp(__pivot, __last)) + --__last; + if (!(__first < __last)) + return __first; + std::iter_swap(__first, __last); + ++__first; + } + } + + /// This is a helper function... + template + _GLIBCXX20_CONSTEXPR + inline _RandomAccessIterator + __unguarded_partition_pivot(_RandomAccessIterator __first, + _RandomAccessIterator __last, _Compare __comp) + { + _RandomAccessIterator __mid = __first + (__last - __first) / 2; + std::__move_median_to_first(__first, __first + 1, __mid, __last - 1, + __comp); + return std::__unguarded_partition(__first + 1, __last, __first, __comp); + } + + template + _GLIBCXX20_CONSTEXPR + inline void + __partial_sort(_RandomAccessIterator __first, + _RandomAccessIterator __middle, + _RandomAccessIterator __last, + _Compare __comp) + { + std::__heap_select(__first, __middle, __last, __comp); + std::__sort_heap(__first, __middle, __comp); + } + + /// This is a helper function for the sort routine. + template + _GLIBCXX20_CONSTEXPR + void + __introsort_loop(_RandomAccessIterator __first, + _RandomAccessIterator __last, + _Size __depth_limit, _Compare __comp) + { + while (__last - __first > int(_S_threshold)) + { + if (__depth_limit == 0) + { + std::__partial_sort(__first, __last, __last, __comp); + return; + } + --__depth_limit; + _RandomAccessIterator __cut = + std::__unguarded_partition_pivot(__first, __last, __comp); + std::__introsort_loop(__cut, __last, __depth_limit, __comp); + __last = __cut; + } + } + + // sort + + template + _GLIBCXX20_CONSTEXPR + inline void + __sort(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + if (__first != __last) + { + std::__introsort_loop(__first, __last, + std::__lg(__last - __first) * 2, + __comp); + std::__final_insertion_sort(__first, __last, __comp); + } + } + + template + _GLIBCXX20_CONSTEXPR + void + __introselect(_RandomAccessIterator __first, _RandomAccessIterator __nth, + _RandomAccessIterator __last, _Size __depth_limit, + _Compare __comp) + { + while (__last - __first > 3) + { + if (__depth_limit == 0) + { + std::__heap_select(__first, __nth + 1, __last, __comp); + // Place the nth largest element in its final position. + std::iter_swap(__first, __nth); + return; + } + --__depth_limit; + _RandomAccessIterator __cut = + std::__unguarded_partition_pivot(__first, __last, __comp); + if (__cut <= __nth) + __first = __cut; + else + __last = __cut; + } + std::__insertion_sort(__first, __last, __comp); + } + + // nth_element + + // lower_bound moved to stl_algobase.h + + /** + * @brief Finds the first position in which @p __val could be inserted + * without changing the ordering. + * @ingroup binary_search_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @param __comp A functor to use for comparisons. + * @return An iterator pointing to the first element not less + * than @p __val, or end() if every element is less + * than @p __val. + * @ingroup binary_search_algorithms + * + * The comparison function should have the same effects on ordering as + * the function used for the initial sort. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + lower_bound(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_requires_partitioned_lower_pred(__first, __last, + __val, __comp); + + return std::__lower_bound(__first, __last, __val, + __gnu_cxx::__ops::__iter_comp_val(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __upper_bound(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, _Compare __comp) + { + typedef typename iterator_traits<_ForwardIterator>::difference_type + _DistanceType; + + _DistanceType __len = std::distance(__first, __last); + + while (__len > 0) + { + _DistanceType __half = __len >> 1; + _ForwardIterator __middle = __first; + std::advance(__middle, __half); + if (__comp(__val, __middle)) + __len = __half; + else + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + } + return __first; + } + + /** + * @brief Finds the last position in which @p __val could be inserted + * without changing the ordering. + * @ingroup binary_search_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @return An iterator pointing to the first element greater than @p __val, + * or end() if no elements are greater than @p __val. + * @ingroup binary_search_algorithms + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + upper_bound(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanOpConcept< + _Tp, typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_partitioned_upper(__first, __last, __val); + + return std::__upper_bound(__first, __last, __val, + __gnu_cxx::__ops::__val_less_iter()); + } + + /** + * @brief Finds the last position in which @p __val could be inserted + * without changing the ordering. + * @ingroup binary_search_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @param __comp A functor to use for comparisons. + * @return An iterator pointing to the first element greater than @p __val, + * or end() if no elements are greater than @p __val. + * @ingroup binary_search_algorithms + * + * The comparison function should have the same effects on ordering as + * the function used for the initial sort. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + upper_bound(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + _Tp, typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_partitioned_upper_pred(__first, __last, + __val, __comp); + + return std::__upper_bound(__first, __last, __val, + __gnu_cxx::__ops::__val_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + pair<_ForwardIterator, _ForwardIterator> + __equal_range(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, + _CompareItTp __comp_it_val, _CompareTpIt __comp_val_it) + { + typedef typename iterator_traits<_ForwardIterator>::difference_type + _DistanceType; + + _DistanceType __len = std::distance(__first, __last); + + while (__len > 0) + { + _DistanceType __half = __len >> 1; + _ForwardIterator __middle = __first; + std::advance(__middle, __half); + if (__comp_it_val(__middle, __val)) + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + else if (__comp_val_it(__val, __middle)) + __len = __half; + else + { + _ForwardIterator __left + = std::__lower_bound(__first, __middle, __val, __comp_it_val); + std::advance(__first, __len); + _ForwardIterator __right + = std::__upper_bound(++__middle, __first, __val, __comp_val_it); + return pair<_ForwardIterator, _ForwardIterator>(__left, __right); + } + } + return pair<_ForwardIterator, _ForwardIterator>(__first, __first); + } + + /** + * @brief Finds the largest subrange in which @p __val could be inserted + * at any place in it without changing the ordering. + * @ingroup binary_search_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @return An pair of iterators defining the subrange. + * @ingroup binary_search_algorithms + * + * This is equivalent to + * @code + * std::make_pair(lower_bound(__first, __last, __val), + * upper_bound(__first, __last, __val)) + * @endcode + * but does not actually call those functions. + */ + template + _GLIBCXX20_CONSTEXPR + inline pair<_ForwardIterator, _ForwardIterator> + equal_range(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_function_requires(_LessThanOpConcept< + _Tp, typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_partitioned_lower(__first, __last, __val); + __glibcxx_requires_partitioned_upper(__first, __last, __val); + + return std::__equal_range(__first, __last, __val, + __gnu_cxx::__ops::__iter_less_val(), + __gnu_cxx::__ops::__val_less_iter()); + } + + /** + * @brief Finds the largest subrange in which @p __val could be inserted + * at any place in it without changing the ordering. + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @param __comp A functor to use for comparisons. + * @return An pair of iterators defining the subrange. + * @ingroup binary_search_algorithms + * + * This is equivalent to + * @code + * std::make_pair(lower_bound(__first, __last, __val, __comp), + * upper_bound(__first, __last, __val, __comp)) + * @endcode + * but does not actually call those functions. + */ + template + _GLIBCXX20_CONSTEXPR + inline pair<_ForwardIterator, _ForwardIterator> + equal_range(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + _Tp, typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_partitioned_lower_pred(__first, __last, + __val, __comp); + __glibcxx_requires_partitioned_upper_pred(__first, __last, + __val, __comp); + + return std::__equal_range(__first, __last, __val, + __gnu_cxx::__ops::__iter_comp_val(__comp), + __gnu_cxx::__ops::__val_comp_iter(__comp)); + } + + /** + * @brief Determines whether an element exists in a range. + * @ingroup binary_search_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @return True if @p __val (or its equivalent) is in [@p + * __first,@p __last ]. + * + * Note that this does not actually return an iterator to @p __val. For + * that, use std::find or a container's specialized find member functions. + */ + template + _GLIBCXX20_CONSTEXPR + bool + binary_search(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanOpConcept< + _Tp, typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_partitioned_lower(__first, __last, __val); + __glibcxx_requires_partitioned_upper(__first, __last, __val); + + _ForwardIterator __i + = std::__lower_bound(__first, __last, __val, + __gnu_cxx::__ops::__iter_less_val()); + return __i != __last && !(__val < *__i); + } + + /** + * @brief Determines whether an element exists in a range. + * @ingroup binary_search_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @param __comp A functor to use for comparisons. + * @return True if @p __val (or its equivalent) is in @p [__first,__last]. + * + * Note that this does not actually return an iterator to @p __val. For + * that, use std::find or a container's specialized find member functions. + * + * The comparison function should have the same effects on ordering as + * the function used for the initial sort. + */ + template + _GLIBCXX20_CONSTEXPR + bool + binary_search(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + _Tp, typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_partitioned_lower_pred(__first, __last, + __val, __comp); + __glibcxx_requires_partitioned_upper_pred(__first, __last, + __val, __comp); + + _ForwardIterator __i + = std::__lower_bound(__first, __last, __val, + __gnu_cxx::__ops::__iter_comp_val(__comp)); + return __i != __last && !bool(__comp(__val, *__i)); + } + + // merge + + /// This is a helper function for the __merge_adaptive routines. + template + void + __move_merge_adaptive(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + { + if (__comp(__first2, __first1)) + { + *__result = _GLIBCXX_MOVE(*__first2); + ++__first2; + } + else + { + *__result = _GLIBCXX_MOVE(*__first1); + ++__first1; + } + ++__result; + } + if (__first1 != __last1) + _GLIBCXX_MOVE3(__first1, __last1, __result); + } + + /// This is a helper function for the __merge_adaptive routines. + template + void + __move_merge_adaptive_backward(_BidirectionalIterator1 __first1, + _BidirectionalIterator1 __last1, + _BidirectionalIterator2 __first2, + _BidirectionalIterator2 __last2, + _BidirectionalIterator3 __result, + _Compare __comp) + { + if (__first1 == __last1) + { + _GLIBCXX_MOVE_BACKWARD3(__first2, __last2, __result); + return; + } + else if (__first2 == __last2) + return; + + --__last1; + --__last2; + while (true) + { + if (__comp(__last2, __last1)) + { + *--__result = _GLIBCXX_MOVE(*__last1); + if (__first1 == __last1) + { + _GLIBCXX_MOVE_BACKWARD3(__first2, ++__last2, __result); + return; + } + --__last1; + } + else + { + *--__result = _GLIBCXX_MOVE(*__last2); + if (__first2 == __last2) + return; + --__last2; + } + } + } + + /// This is a helper function for the merge routines. + template + _BidirectionalIterator1 + __rotate_adaptive(_BidirectionalIterator1 __first, + _BidirectionalIterator1 __middle, + _BidirectionalIterator1 __last, + _Distance __len1, _Distance __len2, + _BidirectionalIterator2 __buffer, + _Distance __buffer_size) + { + _BidirectionalIterator2 __buffer_end; + if (__len1 > __len2 && __len2 <= __buffer_size) + { + if (__len2) + { + __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer); + _GLIBCXX_MOVE_BACKWARD3(__first, __middle, __last); + return _GLIBCXX_MOVE3(__buffer, __buffer_end, __first); + } + else + return __first; + } + else if (__len1 <= __buffer_size) + { + if (__len1) + { + __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer); + _GLIBCXX_MOVE3(__middle, __last, __first); + return _GLIBCXX_MOVE_BACKWARD3(__buffer, __buffer_end, __last); + } + else + return __last; + } + else + return std::rotate(__first, __middle, __last); + } + + /// This is a helper function for the merge routines. + template + void + __merge_adaptive(_BidirectionalIterator __first, + _BidirectionalIterator __middle, + _BidirectionalIterator __last, + _Distance __len1, _Distance __len2, + _Pointer __buffer, _Distance __buffer_size, + _Compare __comp) + { + if (__len1 <= __len2 && __len1 <= __buffer_size) + { + _Pointer __buffer_end = _GLIBCXX_MOVE3(__first, __middle, __buffer); + std::__move_merge_adaptive(__buffer, __buffer_end, __middle, __last, + __first, __comp); + } + else if (__len2 <= __buffer_size) + { + _Pointer __buffer_end = _GLIBCXX_MOVE3(__middle, __last, __buffer); + std::__move_merge_adaptive_backward(__first, __middle, __buffer, + __buffer_end, __last, __comp); + } + else + { + _BidirectionalIterator __first_cut = __first; + _BidirectionalIterator __second_cut = __middle; + _Distance __len11 = 0; + _Distance __len22 = 0; + if (__len1 > __len2) + { + __len11 = __len1 / 2; + std::advance(__first_cut, __len11); + __second_cut + = std::__lower_bound(__middle, __last, *__first_cut, + __gnu_cxx::__ops::__iter_comp_val(__comp)); + __len22 = std::distance(__middle, __second_cut); + } + else + { + __len22 = __len2 / 2; + std::advance(__second_cut, __len22); + __first_cut + = std::__upper_bound(__first, __middle, *__second_cut, + __gnu_cxx::__ops::__val_comp_iter(__comp)); + __len11 = std::distance(__first, __first_cut); + } + + _BidirectionalIterator __new_middle + = std::__rotate_adaptive(__first_cut, __middle, __second_cut, + __len1 - __len11, __len22, __buffer, + __buffer_size); + std::__merge_adaptive(__first, __first_cut, __new_middle, __len11, + __len22, __buffer, __buffer_size, __comp); + std::__merge_adaptive(__new_middle, __second_cut, __last, + __len1 - __len11, + __len2 - __len22, __buffer, + __buffer_size, __comp); + } + } + + /// This is a helper function for the merge routines. + template + void + __merge_without_buffer(_BidirectionalIterator __first, + _BidirectionalIterator __middle, + _BidirectionalIterator __last, + _Distance __len1, _Distance __len2, + _Compare __comp) + { + if (__len1 == 0 || __len2 == 0) + return; + + if (__len1 + __len2 == 2) + { + if (__comp(__middle, __first)) + std::iter_swap(__first, __middle); + return; + } + + _BidirectionalIterator __first_cut = __first; + _BidirectionalIterator __second_cut = __middle; + _Distance __len11 = 0; + _Distance __len22 = 0; + if (__len1 > __len2) + { + __len11 = __len1 / 2; + std::advance(__first_cut, __len11); + __second_cut + = std::__lower_bound(__middle, __last, *__first_cut, + __gnu_cxx::__ops::__iter_comp_val(__comp)); + __len22 = std::distance(__middle, __second_cut); + } + else + { + __len22 = __len2 / 2; + std::advance(__second_cut, __len22); + __first_cut + = std::__upper_bound(__first, __middle, *__second_cut, + __gnu_cxx::__ops::__val_comp_iter(__comp)); + __len11 = std::distance(__first, __first_cut); + } + + _BidirectionalIterator __new_middle + = std::rotate(__first_cut, __middle, __second_cut); + std::__merge_without_buffer(__first, __first_cut, __new_middle, + __len11, __len22, __comp); + std::__merge_without_buffer(__new_middle, __second_cut, __last, + __len1 - __len11, __len2 - __len22, __comp); + } + + template + void + __inplace_merge(_BidirectionalIterator __first, + _BidirectionalIterator __middle, + _BidirectionalIterator __last, + _Compare __comp) + { + typedef typename iterator_traits<_BidirectionalIterator>::value_type + _ValueType; + typedef typename iterator_traits<_BidirectionalIterator>::difference_type + _DistanceType; + + if (__first == __middle || __middle == __last) + return; + + const _DistanceType __len1 = std::distance(__first, __middle); + const _DistanceType __len2 = std::distance(__middle, __last); + + typedef _Temporary_buffer<_BidirectionalIterator, _ValueType> _TmpBuf; + _TmpBuf __buf(__first, __len1 + __len2); + + if (__buf.begin() == 0) + std::__merge_without_buffer + (__first, __middle, __last, __len1, __len2, __comp); + else + std::__merge_adaptive + (__first, __middle, __last, __len1, __len2, __buf.begin(), + _DistanceType(__buf.size()), __comp); + } + + /** + * @brief Merges two sorted ranges in place. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __middle Another iterator. + * @param __last Another iterator. + * @return Nothing. + * + * Merges two sorted and consecutive ranges, [__first,__middle) and + * [__middle,__last), and puts the result in [__first,__last). The + * output will be sorted. The sort is @e stable, that is, for + * equivalent elements in the two ranges, elements from the first + * range will always come before elements from the second. + * + * If enough additional memory is available, this takes (__last-__first)-1 + * comparisons. Otherwise an NlogN algorithm is used, where N is + * distance(__first,__last). + */ + template + inline void + inplace_merge(_BidirectionalIterator __first, + _BidirectionalIterator __middle, + _BidirectionalIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_sorted(__first, __middle); + __glibcxx_requires_sorted(__middle, __last); + __glibcxx_requires_irreflexive(__first, __last); + + std::__inplace_merge(__first, __middle, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Merges two sorted ranges in place. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __middle Another iterator. + * @param __last Another iterator. + * @param __comp A functor to use for comparisons. + * @return Nothing. + * + * Merges two sorted and consecutive ranges, [__first,__middle) and + * [middle,last), and puts the result in [__first,__last). The output will + * be sorted. The sort is @e stable, that is, for equivalent + * elements in the two ranges, elements from the first range will always + * come before elements from the second. + * + * If enough additional memory is available, this takes (__last-__first)-1 + * comparisons. Otherwise an NlogN algorithm is used, where N is + * distance(__first,__last). + * + * The comparison function should have the same effects on ordering as + * the function used for the initial sort. + */ + template + inline void + inplace_merge(_BidirectionalIterator __first, + _BidirectionalIterator __middle, + _BidirectionalIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_BidirectionalIterator>::value_type, + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_sorted_pred(__first, __middle, __comp); + __glibcxx_requires_sorted_pred(__middle, __last, __comp); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + std::__inplace_merge(__first, __middle, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + + /// This is a helper function for the __merge_sort_loop routines. + template + _OutputIterator + __move_merge(_InputIterator __first1, _InputIterator __last1, + _InputIterator __first2, _InputIterator __last2, + _OutputIterator __result, _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + { + if (__comp(__first2, __first1)) + { + *__result = _GLIBCXX_MOVE(*__first2); + ++__first2; + } + else + { + *__result = _GLIBCXX_MOVE(*__first1); + ++__first1; + } + ++__result; + } + return _GLIBCXX_MOVE3(__first2, __last2, + _GLIBCXX_MOVE3(__first1, __last1, + __result)); + } + + template + void + __merge_sort_loop(_RandomAccessIterator1 __first, + _RandomAccessIterator1 __last, + _RandomAccessIterator2 __result, _Distance __step_size, + _Compare __comp) + { + const _Distance __two_step = 2 * __step_size; + + while (__last - __first >= __two_step) + { + __result = std::__move_merge(__first, __first + __step_size, + __first + __step_size, + __first + __two_step, + __result, __comp); + __first += __two_step; + } + __step_size = std::min(_Distance(__last - __first), __step_size); + + std::__move_merge(__first, __first + __step_size, + __first + __step_size, __last, __result, __comp); + } + + template + _GLIBCXX20_CONSTEXPR + void + __chunk_insertion_sort(_RandomAccessIterator __first, + _RandomAccessIterator __last, + _Distance __chunk_size, _Compare __comp) + { + while (__last - __first >= __chunk_size) + { + std::__insertion_sort(__first, __first + __chunk_size, __comp); + __first += __chunk_size; + } + std::__insertion_sort(__first, __last, __comp); + } + + enum { _S_chunk_size = 7 }; + + template + void + __merge_sort_with_buffer(_RandomAccessIterator __first, + _RandomAccessIterator __last, + _Pointer __buffer, _Compare __comp) + { + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _Distance; + + const _Distance __len = __last - __first; + const _Pointer __buffer_last = __buffer + __len; + + _Distance __step_size = _S_chunk_size; + std::__chunk_insertion_sort(__first, __last, __step_size, __comp); + + while (__step_size < __len) + { + std::__merge_sort_loop(__first, __last, __buffer, + __step_size, __comp); + __step_size *= 2; + std::__merge_sort_loop(__buffer, __buffer_last, __first, + __step_size, __comp); + __step_size *= 2; + } + } + + template + void + __stable_sort_adaptive(_RandomAccessIterator __first, + _RandomAccessIterator __last, + _Pointer __buffer, _Distance __buffer_size, + _Compare __comp) + { + const _Distance __len = (__last - __first + 1) / 2; + const _RandomAccessIterator __middle = __first + __len; + if (__len > __buffer_size) + { + std::__stable_sort_adaptive(__first, __middle, __buffer, + __buffer_size, __comp); + std::__stable_sort_adaptive(__middle, __last, __buffer, + __buffer_size, __comp); + } + else + { + std::__merge_sort_with_buffer(__first, __middle, __buffer, __comp); + std::__merge_sort_with_buffer(__middle, __last, __buffer, __comp); + } + std::__merge_adaptive(__first, __middle, __last, + _Distance(__middle - __first), + _Distance(__last - __middle), + __buffer, __buffer_size, + __comp); + } + + /// This is a helper function for the stable sorting routines. + template + void + __inplace_stable_sort(_RandomAccessIterator __first, + _RandomAccessIterator __last, _Compare __comp) + { + if (__last - __first < 15) + { + std::__insertion_sort(__first, __last, __comp); + return; + } + _RandomAccessIterator __middle = __first + (__last - __first) / 2; + std::__inplace_stable_sort(__first, __middle, __comp); + std::__inplace_stable_sort(__middle, __last, __comp); + std::__merge_without_buffer(__first, __middle, __last, + __middle - __first, + __last - __middle, + __comp); + } + + // stable_sort + + // Set algorithms: includes, set_union, set_intersection, set_difference, + // set_symmetric_difference. All of these algorithms have the precondition + // that their input ranges are sorted and the postcondition that their output + // ranges are sorted. + + template + _GLIBCXX20_CONSTEXPR + bool + __includes(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + if (__comp(__first2, __first1)) + return false; + else if (__comp(__first1, __first2)) + ++__first1; + else + { + ++__first1; + ++__first2; + } + + return __first2 == __last2; + } + + /** + * @brief Determines whether all elements of a sequence exists in a range. + * @param __first1 Start of search range. + * @param __last1 End of search range. + * @param __first2 Start of sequence + * @param __last2 End of sequence. + * @return True if each element in [__first2,__last2) is contained in order + * within [__first1,__last1). False otherwise. + * @ingroup set_algorithms + * + * This operation expects both [__first1,__last1) and + * [__first2,__last2) to be sorted. Searches for the presence of + * each element in [__first2,__last2) within [__first1,__last1). + * The iterators over each range only move forward, so this is a + * linear algorithm. If an element in [__first2,__last2) is not + * found before the search iterator reaches @p __last2, false is + * returned. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + includes(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set(__first1, __last1, __first2); + __glibcxx_requires_sorted_set(__first2, __last2, __first1); + __glibcxx_requires_irreflexive2(__first1, __last1); + __glibcxx_requires_irreflexive2(__first2, __last2); + + return std::__includes(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Determines whether all elements of a sequence exists in a range + * using comparison. + * @ingroup set_algorithms + * @param __first1 Start of search range. + * @param __last1 End of search range. + * @param __first2 Start of sequence + * @param __last2 End of sequence. + * @param __comp Comparison function to use. + * @return True if each element in [__first2,__last2) is contained + * in order within [__first1,__last1) according to comp. False + * otherwise. @ingroup set_algorithms + * + * This operation expects both [__first1,__last1) and + * [__first2,__last2) to be sorted. Searches for the presence of + * each element in [__first2,__last2) within [__first1,__last1), + * using comp to decide. The iterators over each range only move + * forward, so this is a linear algorithm. If an element in + * [__first2,__last2) is not found before the search iterator + * reaches @p __last2, false is returned. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + includes(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp); + __glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp); + __glibcxx_requires_irreflexive_pred2(__first1, __last1, __comp); + __glibcxx_requires_irreflexive_pred2(__first2, __last2, __comp); + + return std::__includes(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + // nth_element + // merge + // set_difference + // set_intersection + // set_union + // stable_sort + // set_symmetric_difference + // min_element + // max_element + + template + _GLIBCXX20_CONSTEXPR + bool + __next_permutation(_BidirectionalIterator __first, + _BidirectionalIterator __last, _Compare __comp) + { + if (__first == __last) + return false; + _BidirectionalIterator __i = __first; + ++__i; + if (__i == __last) + return false; + __i = __last; + --__i; + + for(;;) + { + _BidirectionalIterator __ii = __i; + --__i; + if (__comp(__i, __ii)) + { + _BidirectionalIterator __j = __last; + while (!__comp(__i, --__j)) + {} + std::iter_swap(__i, __j); + std::__reverse(__ii, __last, + std::__iterator_category(__first)); + return true; + } + if (__i == __first) + { + std::__reverse(__first, __last, + std::__iterator_category(__first)); + return false; + } + } + } + + /** + * @brief Permute range into the next @e dictionary ordering. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @return False if wrapped to first permutation, true otherwise. + * + * Treats all permutations of the range as a set of @e dictionary sorted + * sequences. Permutes the current sequence into the next one of this set. + * Returns true if there are more sequences to generate. If the sequence + * is the largest of the set, the smallest is generated and false returned. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + next_permutation(_BidirectionalIterator __first, + _BidirectionalIterator __last) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + return std::__next_permutation + (__first, __last, __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Permute range into the next @e dictionary ordering using + * comparison functor. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @param __comp A comparison functor. + * @return False if wrapped to first permutation, true otherwise. + * + * Treats all permutations of the range [__first,__last) as a set of + * @e dictionary sorted sequences ordered by @p __comp. Permutes the current + * sequence into the next one of this set. Returns true if there are more + * sequences to generate. If the sequence is the largest of the set, the + * smallest is generated and false returned. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + next_permutation(_BidirectionalIterator __first, + _BidirectionalIterator __last, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_BidirectionalIterator>::value_type, + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + return std::__next_permutation + (__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + bool + __prev_permutation(_BidirectionalIterator __first, + _BidirectionalIterator __last, _Compare __comp) + { + if (__first == __last) + return false; + _BidirectionalIterator __i = __first; + ++__i; + if (__i == __last) + return false; + __i = __last; + --__i; + + for(;;) + { + _BidirectionalIterator __ii = __i; + --__i; + if (__comp(__ii, __i)) + { + _BidirectionalIterator __j = __last; + while (!__comp(--__j, __i)) + {} + std::iter_swap(__i, __j); + std::__reverse(__ii, __last, + std::__iterator_category(__first)); + return true; + } + if (__i == __first) + { + std::__reverse(__first, __last, + std::__iterator_category(__first)); + return false; + } + } + } + + /** + * @brief Permute range into the previous @e dictionary ordering. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @return False if wrapped to last permutation, true otherwise. + * + * Treats all permutations of the range as a set of @e dictionary sorted + * sequences. Permutes the current sequence into the previous one of this + * set. Returns true if there are more sequences to generate. If the + * sequence is the smallest of the set, the largest is generated and false + * returned. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + prev_permutation(_BidirectionalIterator __first, + _BidirectionalIterator __last) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + return std::__prev_permutation(__first, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Permute range into the previous @e dictionary ordering using + * comparison functor. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @param __comp A comparison functor. + * @return False if wrapped to last permutation, true otherwise. + * + * Treats all permutations of the range [__first,__last) as a set of + * @e dictionary sorted sequences ordered by @p __comp. Permutes the current + * sequence into the previous one of this set. Returns true if there are + * more sequences to generate. If the sequence is the smallest of the set, + * the largest is generated and false returned. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + prev_permutation(_BidirectionalIterator __first, + _BidirectionalIterator __last, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_BidirectionalIterator>::value_type, + typename iterator_traits<_BidirectionalIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + return std::__prev_permutation(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + // replace + // replace_if + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __replace_copy_if(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, + _Predicate __pred, const _Tp& __new_value) + { + for (; __first != __last; ++__first, (void)++__result) + if (__pred(__first)) + *__result = __new_value; + else + *__result = *__first; + return __result; + } + + /** + * @brief Copy a sequence, replacing each element of one value with another + * value. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __old_value The value to be replaced. + * @param __new_value The replacement value. + * @return The end of the output sequence, @p result+(last-first). + * + * Copies each element in the input range @p [__first,__last) to the + * output range @p [__result,__result+(__last-__first)) replacing elements + * equal to @p __old_value with @p __new_value. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + replace_copy(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, + const _Tp& __old_value, const _Tp& __new_value) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__replace_copy_if(__first, __last, __result, + __gnu_cxx::__ops::__iter_equals_val(__old_value), + __new_value); + } + + /** + * @brief Copy a sequence, replacing each value for which a predicate + * returns true with another value. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __pred A predicate. + * @param __new_value The replacement value. + * @return The end of the output sequence, @p __result+(__last-__first). + * + * Copies each element in the range @p [__first,__last) to the range + * @p [__result,__result+(__last-__first)) replacing elements for which + * @p __pred returns true with @p __new_value. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + replace_copy_if(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, + _Predicate __pred, const _Tp& __new_value) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__replace_copy_if(__first, __last, __result, + __gnu_cxx::__ops::__pred_iter(__pred), + __new_value); + } + +#if __cplusplus >= 201103L + /** + * @brief Determines whether the elements of a sequence are sorted. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @return True if the elements are sorted, false otherwise. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_sorted(_ForwardIterator __first, _ForwardIterator __last) + { return std::is_sorted_until(__first, __last) == __last; } + + /** + * @brief Determines whether the elements of a sequence are sorted + * according to a comparison functor. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __comp A comparison functor. + * @return True if the elements are sorted, false otherwise. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_sorted(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { return std::is_sorted_until(__first, __last, __comp) == __last; } + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + if (__first == __last) + return __last; + + _ForwardIterator __next = __first; + for (++__next; __next != __last; __first = __next, (void)++__next) + if (__comp(__next, __first)) + return __next; + return __next; + } + + /** + * @brief Determines the end of a sorted sequence. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @return An iterator pointing to the last iterator i in [__first, __last) + * for which the range [__first, i) is sorted. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + is_sorted_until(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + return std::__is_sorted_until(__first, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Determines the end of a sorted sequence using comparison functor. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __comp A comparison functor. + * @return An iterator pointing to the last iterator i in [__first, __last) + * for which the range [__first, i) is sorted. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + return std::__is_sorted_until(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + /** + * @brief Determines min and max at once as an ordered pair. + * @ingroup sorting_algorithms + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @return A pair(__b, __a) if __b is smaller than __a, pair(__a, + * __b) otherwise. + */ + template + _GLIBCXX14_CONSTEXPR + inline pair + minmax(const _Tp& __a, const _Tp& __b) + { + // concept requirements + __glibcxx_function_requires(_LessThanComparableConcept<_Tp>) + + return __b < __a ? pair(__b, __a) + : pair(__a, __b); + } + + /** + * @brief Determines min and max at once as an ordered pair. + * @ingroup sorting_algorithms + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @param __comp A @link comparison_functors comparison functor @endlink. + * @return A pair(__b, __a) if __b is smaller than __a, pair(__a, + * __b) otherwise. + */ + template + _GLIBCXX14_CONSTEXPR + inline pair + minmax(const _Tp& __a, const _Tp& __b, _Compare __comp) + { + return __comp(__b, __a) ? pair(__b, __a) + : pair(__a, __b); + } + + template + _GLIBCXX14_CONSTEXPR + pair<_ForwardIterator, _ForwardIterator> + __minmax_element(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + _ForwardIterator __next = __first; + if (__first == __last + || ++__next == __last) + return std::make_pair(__first, __first); + + _ForwardIterator __min{}, __max{}; + if (__comp(__next, __first)) + { + __min = __next; + __max = __first; + } + else + { + __min = __first; + __max = __next; + } + + __first = __next; + ++__first; + + while (__first != __last) + { + __next = __first; + if (++__next == __last) + { + if (__comp(__first, __min)) + __min = __first; + else if (!__comp(__first, __max)) + __max = __first; + break; + } + + if (__comp(__next, __first)) + { + if (__comp(__next, __min)) + __min = __next; + if (!__comp(__first, __max)) + __max = __first; + } + else + { + if (__comp(__first, __min)) + __min = __first; + if (!__comp(__next, __max)) + __max = __next; + } + + __first = __next; + ++__first; + } + + return std::make_pair(__min, __max); + } + + /** + * @brief Return a pair of iterators pointing to the minimum and maximum + * elements in a range. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @return make_pair(m, M), where m is the first iterator i in + * [__first, __last) such that no other element in the range is + * smaller, and where M is the last iterator i in [__first, __last) + * such that no other element in the range is larger. + */ + template + _GLIBCXX14_CONSTEXPR + inline pair<_ForwardIterator, _ForwardIterator> + minmax_element(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + return std::__minmax_element(__first, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return a pair of iterators pointing to the minimum and maximum + * elements in a range. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @param __comp Comparison functor. + * @return make_pair(m, M), where m is the first iterator i in + * [__first, __last) such that no other element in the range is + * smaller, and where M is the last iterator i in [__first, __last) + * such that no other element in the range is larger. + */ + template + _GLIBCXX14_CONSTEXPR + inline pair<_ForwardIterator, _ForwardIterator> + minmax_element(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + return std::__minmax_element(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + // N2722 + DR 915. + template + _GLIBCXX14_CONSTEXPR + inline _Tp + min(initializer_list<_Tp> __l) + { return *std::min_element(__l.begin(), __l.end()); } + + template + _GLIBCXX14_CONSTEXPR + inline _Tp + min(initializer_list<_Tp> __l, _Compare __comp) + { return *std::min_element(__l.begin(), __l.end(), __comp); } + + template + _GLIBCXX14_CONSTEXPR + inline _Tp + max(initializer_list<_Tp> __l) + { return *std::max_element(__l.begin(), __l.end()); } + + template + _GLIBCXX14_CONSTEXPR + inline _Tp + max(initializer_list<_Tp> __l, _Compare __comp) + { return *std::max_element(__l.begin(), __l.end(), __comp); } + + template + _GLIBCXX14_CONSTEXPR + inline pair<_Tp, _Tp> + minmax(initializer_list<_Tp> __l) + { + pair __p = + std::minmax_element(__l.begin(), __l.end()); + return std::make_pair(*__p.first, *__p.second); + } + + template + _GLIBCXX14_CONSTEXPR + inline pair<_Tp, _Tp> + minmax(initializer_list<_Tp> __l, _Compare __comp) + { + pair __p = + std::minmax_element(__l.begin(), __l.end(), __comp); + return std::make_pair(*__p.first, *__p.second); + } + + /** + * @brief Checks whether a permutation of the second sequence is equal + * to the first sequence. + * @ingroup non_mutating_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __pred A binary predicate. + * @return true if there exists a permutation of the elements in + * the range [__first2, __first2 + (__last1 - __first1)), + * beginning with ForwardIterator2 begin, such that + * equal(__first1, __last1, __begin, __pred) returns true; + * otherwise, returns false. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _BinaryPredicate __pred) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator1>::value_type, + typename iterator_traits<_ForwardIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + + return std::__is_permutation(__first1, __last1, __first2, + __gnu_cxx::__ops::__iter_comp_iter(__pred)); + } + +#if __cplusplus > 201103L + template + _GLIBCXX20_CONSTEXPR + bool + __is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2, + _BinaryPredicate __pred) + { + using _Cat1 + = typename iterator_traits<_ForwardIterator1>::iterator_category; + using _Cat2 + = typename iterator_traits<_ForwardIterator2>::iterator_category; + using _It1_is_RA = is_same<_Cat1, random_access_iterator_tag>; + using _It2_is_RA = is_same<_Cat2, random_access_iterator_tag>; + constexpr bool __ra_iters = _It1_is_RA() && _It2_is_RA(); + if (__ra_iters) + { + auto __d1 = std::distance(__first1, __last1); + auto __d2 = std::distance(__first2, __last2); + if (__d1 != __d2) + return false; + } + + // Efficiently compare identical prefixes: O(N) if sequences + // have the same elements in the same order. + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + if (!__pred(__first1, __first2)) + break; + + if (__ra_iters) + { + if (__first1 == __last1) + return true; + } + else + { + auto __d1 = std::distance(__first1, __last1); + auto __d2 = std::distance(__first2, __last2); + if (__d1 == 0 && __d2 == 0) + return true; + if (__d1 != __d2) + return false; + } + + for (_ForwardIterator1 __scan = __first1; __scan != __last1; ++__scan) + { + if (__scan != std::__find_if(__first1, __scan, + __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan))) + continue; // We've seen this one before. + + auto __matches = std::__count_if(__first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)); + if (0 == __matches + || std::__count_if(__scan, __last1, + __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)) + != __matches) + return false; + } + return true; + } + + /** + * @brief Checks whether a permutaion of the second sequence is equal + * to the first sequence. + * @ingroup non_mutating_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of first range. + * @return true if there exists a permutation of the elements in the range + * [__first2, __last2), beginning with ForwardIterator2 begin, + * such that equal(__first1, __last1, begin) returns true; + * otherwise, returns false. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2) + { + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return + std::__is_permutation(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Checks whether a permutation of the second sequence is equal + * to the first sequence. + * @ingroup non_mutating_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of first range. + * @param __pred A binary predicate. + * @return true if there exists a permutation of the elements in the range + * [__first2, __last2), beginning with ForwardIterator2 begin, + * such that equal(__first1, __last1, __begin, __pred) returns true; + * otherwise, returns false. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2, + _BinaryPredicate __pred) + { + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__is_permutation(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__pred)); + } + +#if __cplusplus > 201402L + +#define __cpp_lib_clamp 201603 + + /** + * @brief Returns the value clamped between lo and hi. + * @ingroup sorting_algorithms + * @param __val A value of arbitrary type. + * @param __lo A lower limit of arbitrary type. + * @param __hi An upper limit of arbitrary type. + * @return max(__val, __lo) if __val < __hi or min(__val, __hi) otherwise. + */ + template + constexpr const _Tp& + clamp(const _Tp& __val, const _Tp& __lo, const _Tp& __hi) + { + __glibcxx_assert(!(__hi < __lo)); + return (__val < __lo) ? __lo : (__hi < __val) ? __hi : __val; + } + + /** + * @brief Returns the value clamped between lo and hi. + * @ingroup sorting_algorithms + * @param __val A value of arbitrary type. + * @param __lo A lower limit of arbitrary type. + * @param __hi An upper limit of arbitrary type. + * @param __comp A comparison functor. + * @return max(__val, __lo, __comp) if __comp(__val, __hi) + * or min(__val, __hi, __comp) otherwise. + */ + template + constexpr const _Tp& + clamp(const _Tp& __val, const _Tp& __lo, const _Tp& __hi, _Compare __comp) + { + __glibcxx_assert(!__comp(__hi, __lo)); + return __comp(__val, __lo) ? __lo : __comp(__hi, __val) ? __hi : __val; + } +#endif // C++17 +#endif // C++14 + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + /** + * @brief Generate two uniformly distributed integers using a + * single distribution invocation. + * @param __b0 The upper bound for the first integer. + * @param __b1 The upper bound for the second integer. + * @param __g A UniformRandomBitGenerator. + * @return A pair (i, j) with i and j uniformly distributed + * over [0, __b0) and [0, __b1), respectively. + * + * Requires: __b0 * __b1 <= __g.max() - __g.min(). + * + * Using uniform_int_distribution with a range that is very + * small relative to the range of the generator ends up wasting + * potentially expensively generated randomness, since + * uniform_int_distribution does not store leftover randomness + * between invocations. + * + * If we know we want two integers in ranges that are sufficiently + * small, we can compose the ranges, use a single distribution + * invocation, and significantly reduce the waste. + */ + template + pair<_IntType, _IntType> + __gen_two_uniform_ints(_IntType __b0, _IntType __b1, + _UniformRandomBitGenerator&& __g) + { + _IntType __x + = uniform_int_distribution<_IntType>{0, (__b0 * __b1) - 1}(__g); + return std::make_pair(__x / __b1, __x % __b1); + } + + /** + * @brief Shuffle the elements of a sequence using a uniform random + * number generator. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __g A UniformRandomNumberGenerator (26.5.1.3). + * @return Nothing. + * + * Reorders the elements in the range @p [__first,__last) using @p __g to + * provide random numbers. + */ + template + void + shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last, + _UniformRandomNumberGenerator&& __g) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return; + + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _DistanceType; + + typedef typename std::make_unsigned<_DistanceType>::type __ud_type; + typedef typename std::uniform_int_distribution<__ud_type> __distr_type; + typedef typename __distr_type::param_type __p_type; + + typedef typename remove_reference<_UniformRandomNumberGenerator>::type + _Gen; + typedef typename common_type::type + __uc_type; + + const __uc_type __urngrange = __g.max() - __g.min(); + const __uc_type __urange = __uc_type(__last - __first); + + if (__urngrange / __urange >= __urange) + // I.e. (__urngrange >= __urange * __urange) but without wrap issues. + { + _RandomAccessIterator __i = __first + 1; + + // Since we know the range isn't empty, an even number of elements + // means an uneven number of elements /to swap/, in which case we + // do the first one up front: + + if ((__urange % 2) == 0) + { + __distr_type __d{0, 1}; + std::iter_swap(__i++, __first + __d(__g)); + } + + // Now we know that __last - __i is even, so we do the rest in pairs, + // using a single distribution invocation to produce swap positions + // for two successive elements at a time: + + while (__i != __last) + { + const __uc_type __swap_range = __uc_type(__i - __first) + 1; + + const pair<__uc_type, __uc_type> __pospos = + __gen_two_uniform_ints(__swap_range, __swap_range + 1, __g); + + std::iter_swap(__i++, __first + __pospos.first); + std::iter_swap(__i++, __first + __pospos.second); + } + + return; + } + + __distr_type __d; + + for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i) + std::iter_swap(__i, __first + __d(__g, __p_type(0, __i - __first))); + } +#endif + +#endif // C++11 + +_GLIBCXX_BEGIN_NAMESPACE_ALGO + + /** + * @brief Apply a function to every element of a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __f A unary function object. + * @return @p __f + * + * Applies the function object @p __f to each element in the range + * @p [first,last). @p __f must not modify the order of the sequence. + * If @p __f has a return value it is ignored. + */ + template + _GLIBCXX20_CONSTEXPR + _Function + for_each(_InputIterator __first, _InputIterator __last, _Function __f) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_requires_valid_range(__first, __last); + for (; __first != __last; ++__first) + __f(*__first); + return __f; // N.B. [alg.foreach] says std::move(f) but it's redundant. + } + +#if __cplusplus >= 201703L + /** + * @brief Apply a function to every element of a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __n A value convertible to an integer. + * @param __f A unary function object. + * @return `__first+__n` + * + * Applies the function object `__f` to each element in the range + * `[first, first+n)`. `__f` must not modify the order of the sequence. + * If `__f` has a return value it is ignored. + */ + template + _GLIBCXX20_CONSTEXPR + _InputIterator + for_each_n(_InputIterator __first, _Size __n, _Function __f) + { + auto __n2 = std::__size_to_integer(__n); + using _Cat = typename iterator_traits<_InputIterator>::iterator_category; + if constexpr (is_base_of_v) + { + if (__n2 <= 0) + return __first; + auto __last = __first + __n2; + std::for_each(__first, __last, std::move(__f)); + return __last; + } + else + { + while (__n2-->0) + { + __f(*__first); + ++__first; + } + return __first; + } + } +#endif // C++17 + + /** + * @brief Find the first occurrence of a value in a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __val The value to find. + * @return The first iterator @c i in the range @p [__first,__last) + * such that @c *i == @p __val, or @p __last if no such iterator exists. + */ + template + _GLIBCXX20_CONSTEXPR + inline _InputIterator + find(_InputIterator __first, _InputIterator __last, + const _Tp& __val) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + return std::__find_if(__first, __last, + __gnu_cxx::__ops::__iter_equals_val(__val)); + } + + /** + * @brief Find the first element in a sequence for which a + * predicate is true. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return The first iterator @c i in the range @p [__first,__last) + * such that @p __pred(*i) is true, or @p __last if no such iterator exists. + */ + template + _GLIBCXX20_CONSTEXPR + inline _InputIterator + find_if(_InputIterator __first, _InputIterator __last, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__find_if(__first, __last, + __gnu_cxx::__ops::__pred_iter(__pred)); + } + + /** + * @brief Find element from a set in a sequence. + * @ingroup non_mutating_algorithms + * @param __first1 Start of range to search. + * @param __last1 End of range to search. + * @param __first2 Start of match candidates. + * @param __last2 End of match candidates. + * @return The first iterator @c i in the range + * @p [__first1,__last1) such that @c *i == @p *(i2) such that i2 is an + * iterator in [__first2,__last2), or @p __last1 if no such iterator exists. + * + * Searches the range @p [__first1,__last1) for an element that is + * equal to some element in the range [__first2,__last2). If + * found, returns an iterator in the range [__first1,__last1), + * otherwise returns @p __last1. + */ + template + _GLIBCXX20_CONSTEXPR + _InputIterator + find_first_of(_InputIterator __first1, _InputIterator __last1, + _ForwardIterator __first2, _ForwardIterator __last2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + for (; __first1 != __last1; ++__first1) + for (_ForwardIterator __iter = __first2; __iter != __last2; ++__iter) + if (*__first1 == *__iter) + return __first1; + return __last1; + } + + /** + * @brief Find element from a set in a sequence using a predicate. + * @ingroup non_mutating_algorithms + * @param __first1 Start of range to search. + * @param __last1 End of range to search. + * @param __first2 Start of match candidates. + * @param __last2 End of match candidates. + * @param __comp Predicate to use. + * @return The first iterator @c i in the range + * @p [__first1,__last1) such that @c comp(*i, @p *(i2)) is true + * and i2 is an iterator in [__first2,__last2), or @p __last1 if no + * such iterator exists. + * + + * Searches the range @p [__first1,__last1) for an element that is + * equal to some element in the range [__first2,__last2). If + * found, returns an iterator in the range [__first1,__last1), + * otherwise returns @p __last1. + */ + template + _GLIBCXX20_CONSTEXPR + _InputIterator + find_first_of(_InputIterator __first1, _InputIterator __last1, + _ForwardIterator __first2, _ForwardIterator __last2, + _BinaryPredicate __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_InputIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + for (; __first1 != __last1; ++__first1) + for (_ForwardIterator __iter = __first2; __iter != __last2; ++__iter) + if (__comp(*__first1, *__iter)) + return __first1; + return __last1; + } + + /** + * @brief Find two adjacent values in a sequence that are equal. + * @ingroup non_mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @return The first iterator @c i such that @c i and @c i+1 are both + * valid iterators in @p [__first,__last) and such that @c *i == @c *(i+1), + * or @p __last if no such iterator exists. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + adjacent_find(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_EqualityComparableConcept< + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__adjacent_find(__first, __last, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Find two adjacent values in a sequence using a predicate. + * @ingroup non_mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __binary_pred A binary predicate. + * @return The first iterator @c i such that @c i and @c i+1 are both + * valid iterators in @p [__first,__last) and such that + * @p __binary_pred(*i,*(i+1)) is true, or @p __last if no such iterator + * exists. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + adjacent_find(_ForwardIterator __first, _ForwardIterator __last, + _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__adjacent_find(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__binary_pred)); + } + + /** + * @brief Count the number of copies of a value in a sequence. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __value The value to be counted. + * @return The number of iterators @c i in the range @p [__first,__last) + * for which @c *i == @p __value + */ + template + _GLIBCXX20_CONSTEXPR + inline typename iterator_traits<_InputIterator>::difference_type + count(_InputIterator __first, _InputIterator __last, const _Tp& __value) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__count_if(__first, __last, + __gnu_cxx::__ops::__iter_equals_val(__value)); + } + + /** + * @brief Count the elements of a sequence for which a predicate is true. + * @ingroup non_mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __pred A predicate. + * @return The number of iterators @c i in the range @p [__first,__last) + * for which @p __pred(*i) is true. + */ + template + _GLIBCXX20_CONSTEXPR + inline typename iterator_traits<_InputIterator>::difference_type + count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__count_if(__first, __last, + __gnu_cxx::__ops::__pred_iter(__pred)); + } + + /** + * @brief Search a sequence for a matching sub-sequence. + * @ingroup non_mutating_algorithms + * @param __first1 A forward iterator. + * @param __last1 A forward iterator. + * @param __first2 A forward iterator. + * @param __last2 A forward iterator. + * @return The first iterator @c i in the range @p + * [__first1,__last1-(__last2-__first2)) such that @c *(i+N) == @p + * *(__first2+N) for each @c N in the range @p + * [0,__last2-__first2), or @p __last1 if no such iterator exists. + * + * Searches the range @p [__first1,__last1) for a sub-sequence that + * compares equal value-by-value with the sequence given by @p + * [__first2,__last2) and returns an iterator to the first element + * of the sub-sequence, or @p __last1 if the sub-sequence is not + * found. + * + * Because the sub-sequence must lie completely within the range @p + * [__first1,__last1) it must start at a position less than @p + * __last1-(__last2-__first2) where @p __last2-__first2 is the + * length of the sub-sequence. + * + * This means that the returned iterator @c i will be in the range + * @p [__first1,__last1-(__last2-__first2)) + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator1 + search(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_ForwardIterator1>::value_type, + typename iterator_traits<_ForwardIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__search(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Search a sequence for a matching sub-sequence using a predicate. + * @ingroup non_mutating_algorithms + * @param __first1 A forward iterator. + * @param __last1 A forward iterator. + * @param __first2 A forward iterator. + * @param __last2 A forward iterator. + * @param __predicate A binary predicate. + * @return The first iterator @c i in the range + * @p [__first1,__last1-(__last2-__first2)) such that + * @p __predicate(*(i+N),*(__first2+N)) is true for each @c N in the range + * @p [0,__last2-__first2), or @p __last1 if no such iterator exists. + * + * Searches the range @p [__first1,__last1) for a sub-sequence that + * compares equal value-by-value with the sequence given by @p + * [__first2,__last2), using @p __predicate to determine equality, + * and returns an iterator to the first element of the + * sub-sequence, or @p __last1 if no such iterator exists. + * + * @see search(_ForwardIter1, _ForwardIter1, _ForwardIter2, _ForwardIter2) + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator1 + search(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _ForwardIterator2 __last2, + _BinaryPredicate __predicate) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator1>::value_type, + typename iterator_traits<_ForwardIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__search(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__predicate)); + } + + /** + * @brief Search a sequence for a number of consecutive values. + * @ingroup non_mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __count The number of consecutive values. + * @param __val The value to find. + * @return The first iterator @c i in the range @p + * [__first,__last-__count) such that @c *(i+N) == @p __val for + * each @c N in the range @p [0,__count), or @p __last if no such + * iterator exists. + * + * Searches the range @p [__first,__last) for @p count consecutive elements + * equal to @p __val. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + search_n(_ForwardIterator __first, _ForwardIterator __last, + _Integer __count, const _Tp& __val) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__search_n(__first, __last, __count, + __gnu_cxx::__ops::__iter_equals_val(__val)); + } + + + /** + * @brief Search a sequence for a number of consecutive values using a + * predicate. + * @ingroup non_mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __count The number of consecutive values. + * @param __val The value to find. + * @param __binary_pred A binary predicate. + * @return The first iterator @c i in the range @p + * [__first,__last-__count) such that @p + * __binary_pred(*(i+N),__val) is true for each @c N in the range + * @p [0,__count), or @p __last if no such iterator exists. + * + * Searches the range @p [__first,__last) for @p __count + * consecutive elements for which the predicate returns true. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + search_n(_ForwardIterator __first, _ForwardIterator __last, + _Integer __count, const _Tp& __val, + _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_BinaryPredicate, + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__search_n(__first, __last, __count, + __gnu_cxx::__ops::__iter_comp_val(__binary_pred, __val)); + } + +#if __cplusplus > 201402L + /** @brief Search a sequence using a Searcher object. + * + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __searcher A callable object. + * @return @p __searcher(__first,__last).first + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + search(_ForwardIterator __first, _ForwardIterator __last, + const _Searcher& __searcher) + { return __searcher(__first, __last).first; } +#endif + + /** + * @brief Perform an operation on a sequence. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __unary_op A unary operator. + * @return An output iterator equal to @p __result+(__last-__first). + * + * Applies the operator to each element in the input range and assigns + * the results to successive elements of the output sequence. + * Evaluates @p *(__result+N)=unary_op(*(__first+N)) for each @c N in the + * range @p [0,__last-__first). + * + * @p unary_op must not alter its argument. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + transform(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _UnaryOperation __unary_op) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + // "the type returned by a _UnaryOperation" + __typeof__(__unary_op(*__first))>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first, (void)++__result) + *__result = __unary_op(*__first); + return __result; + } + + /** + * @brief Perform an operation on corresponding elements of two sequences. + * @ingroup mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __result An output iterator. + * @param __binary_op A binary operator. + * @return An output iterator equal to @p result+(last-first). + * + * Applies the operator to the corresponding elements in the two + * input ranges and assigns the results to successive elements of the + * output sequence. + * Evaluates @p + * *(__result+N)=__binary_op(*(__first1+N),*(__first2+N)) for each + * @c N in the range @p [0,__last1-__first1). + * + * @p binary_op must not alter either of its arguments. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + transform(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _OutputIterator __result, + _BinaryOperation __binary_op) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + // "the type returned by a _BinaryOperation" + __typeof__(__binary_op(*__first1,*__first2))>) + __glibcxx_requires_valid_range(__first1, __last1); + + for (; __first1 != __last1; ++__first1, (void)++__first2, ++__result) + *__result = __binary_op(*__first1, *__first2); + return __result; + } + + /** + * @brief Replace each occurrence of one value in a sequence with another + * value. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __old_value The value to be replaced. + * @param __new_value The replacement value. + * @return replace() returns no value. + * + * For each iterator @c i in the range @p [__first,__last) if @c *i == + * @p __old_value then the assignment @c *i = @p __new_value is performed. + */ + template + _GLIBCXX20_CONSTEXPR + void + replace(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __old_value, const _Tp& __new_value) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_function_requires(_ConvertibleConcept<_Tp, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + if (*__first == __old_value) + *__first = __new_value; + } + + /** + * @brief Replace each value in a sequence for which a predicate returns + * true with another value. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __pred A predicate. + * @param __new_value The replacement value. + * @return replace_if() returns no value. + * + * For each iterator @c i in the range @p [__first,__last) if @p __pred(*i) + * is true then the assignment @c *i = @p __new_value is performed. + */ + template + _GLIBCXX20_CONSTEXPR + void + replace_if(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred, const _Tp& __new_value) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_ConvertibleConcept<_Tp, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + if (__pred(*__first)) + *__first = __new_value; + } + + /** + * @brief Assign the result of a function object to each value in a + * sequence. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __gen A function object taking no arguments and returning + * std::iterator_traits<_ForwardIterator>::value_type + * @return generate() returns no value. + * + * Performs the assignment @c *i = @p __gen() for each @c i in the range + * @p [__first,__last). + */ + template + _GLIBCXX20_CONSTEXPR + void + generate(_ForwardIterator __first, _ForwardIterator __last, + _Generator __gen) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_GeneratorConcept<_Generator, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + *__first = __gen(); + } + + /** + * @brief Assign the result of a function object to each value in a + * sequence. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __n The length of the sequence. + * @param __gen A function object taking no arguments and returning + * std::iterator_traits<_ForwardIterator>::value_type + * @return The end of the sequence, @p __first+__n + * + * Performs the assignment @c *i = @p __gen() for each @c i in the range + * @p [__first,__first+__n). + * + * If @p __n is negative, the function does nothing and returns @p __first. + */ + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 865. More algorithms that throw away information + // DR 426. search_n(), fill_n(), and generate_n() with negative n + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + generate_n(_OutputIterator __first, _Size __n, _Generator __gen) + { + // concept requirements + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + // "the type returned by a _Generator" + __typeof__(__gen())>) + + typedef __decltype(std::__size_to_integer(__n)) _IntSize; + for (_IntSize __niter = std::__size_to_integer(__n); + __niter > 0; --__niter, (void) ++__first) + *__first = __gen(); + return __first; + } + + /** + * @brief Copy a sequence, removing consecutive duplicate values. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @return An iterator designating the end of the resulting sequence. + * + * Copies each element in the range @p [__first,__last) to the range + * beginning at @p __result, except that only the first element is copied + * from groups of consecutive elements that compare equal. + * unique_copy() is stable, so the relative order of elements that are + * copied is unchanged. + * + * _GLIBCXX_RESOLVE_LIB_DEFECTS + * DR 241. Does unique_copy() require CopyConstructible and Assignable? + * + * _GLIBCXX_RESOLVE_LIB_DEFECTS + * DR 538. 241 again: Does unique_copy() require CopyConstructible and + * Assignable? + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + unique_copy(_InputIterator __first, _InputIterator __last, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_function_requires(_EqualityComparableConcept< + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return __result; + return std::__unique_copy(__first, __last, __result, + __gnu_cxx::__ops::__iter_equal_to_iter(), + std::__iterator_category(__first), + std::__iterator_category(__result)); + } + + /** + * @brief Copy a sequence, removing consecutive values using a predicate. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @param __binary_pred A binary predicate. + * @return An iterator designating the end of the resulting sequence. + * + * Copies each element in the range @p [__first,__last) to the range + * beginning at @p __result, except that only the first element is copied + * from groups of consecutive elements for which @p __binary_pred returns + * true. + * unique_copy() is stable, so the relative order of elements that are + * copied is unchanged. + * + * _GLIBCXX_RESOLVE_LIB_DEFECTS + * DR 241. Does unique_copy() require CopyConstructible and Assignable? + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + unique_copy(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, + _BinaryPredicate __binary_pred) + { + // concept requirements -- predicates checked later + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return __result; + return std::__unique_copy(__first, __last, __result, + __gnu_cxx::__ops::__iter_comp_iter(__binary_pred), + std::__iterator_category(__first), + std::__iterator_category(__result)); + } + +#if _GLIBCXX_HOSTED + /** + * @brief Randomly shuffle the elements of a sequence. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @return Nothing. + * + * Reorder the elements in the range @p [__first,__last) using a random + * distribution, so that every possible ordering of the sequence is + * equally likely. + */ + template + inline void + random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first != __last) + for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i) + { + // XXX rand() % N is not uniformly distributed + _RandomAccessIterator __j = __first + + std::rand() % ((__i - __first) + 1); + if (__i != __j) + std::iter_swap(__i, __j); + } + } +#endif + + /** + * @brief Shuffle the elements of a sequence using a random number + * generator. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __rand The RNG functor or function. + * @return Nothing. + * + * Reorders the elements in the range @p [__first,__last) using @p __rand to + * provide a random distribution. Calling @p __rand(N) for a positive + * integer @p N should return a randomly chosen integer from the + * range [0,N). + */ + template + void + random_shuffle(_RandomAccessIterator __first, _RandomAccessIterator __last, +#if __cplusplus >= 201103L + _RandomNumberGenerator&& __rand) +#else + _RandomNumberGenerator& __rand) +#endif + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return; + for (_RandomAccessIterator __i = __first + 1; __i != __last; ++__i) + { + _RandomAccessIterator __j = __first + __rand((__i - __first) + 1); + if (__i != __j) + std::iter_swap(__i, __j); + } + } + + + /** + * @brief Move elements for which a predicate is true to the beginning + * of a sequence. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __pred A predicate functor. + * @return An iterator @p middle such that @p __pred(i) is true for each + * iterator @p i in the range @p [__first,middle) and false for each @p i + * in the range @p [middle,__last). + * + * @p __pred must not modify its operand. @p partition() does not preserve + * the relative ordering of elements in each group, use + * @p stable_partition() if this is needed. + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + partition(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__partition(__first, __last, __pred, + std::__iterator_category(__first)); + } + + + /** + * @brief Sort the smallest elements of a sequence. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __middle Another iterator. + * @param __last Another iterator. + * @return Nothing. + * + * Sorts the smallest @p (__middle-__first) elements in the range + * @p [first,last) and moves them to the range @p [__first,__middle). The + * order of the remaining elements in the range @p [__middle,__last) is + * undefined. + * After the sort if @e i and @e j are iterators in the range + * @p [__first,__middle) such that i precedes j and @e k is an iterator in + * the range @p [__middle,__last) then *j<*i and *k<*i are both false. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + partial_sort(_RandomAccessIterator __first, + _RandomAccessIterator __middle, + _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __middle); + __glibcxx_requires_valid_range(__middle, __last); + __glibcxx_requires_irreflexive(__first, __last); + + std::__partial_sort(__first, __middle, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Sort the smallest elements of a sequence using a predicate + * for comparison. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __middle Another iterator. + * @param __last Another iterator. + * @param __comp A comparison functor. + * @return Nothing. + * + * Sorts the smallest @p (__middle-__first) elements in the range + * @p [__first,__last) and moves them to the range @p [__first,__middle). The + * order of the remaining elements in the range @p [__middle,__last) is + * undefined. + * After the sort if @e i and @e j are iterators in the range + * @p [__first,__middle) such that i precedes j and @e k is an iterator in + * the range @p [__middle,__last) then @p *__comp(j,*i) and @p __comp(*k,*i) + * are both false. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + partial_sort(_RandomAccessIterator __first, + _RandomAccessIterator __middle, + _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_RandomAccessIterator>::value_type, + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __middle); + __glibcxx_requires_valid_range(__middle, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + std::__partial_sort(__first, __middle, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + /** + * @brief Sort a sequence just enough to find a particular position. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __nth Another iterator. + * @param __last Another iterator. + * @return Nothing. + * + * Rearranges the elements in the range @p [__first,__last) so that @p *__nth + * is the same element that would have been in that position had the + * whole sequence been sorted. The elements either side of @p *__nth are + * not completely sorted, but for any iterator @e i in the range + * @p [__first,__nth) and any iterator @e j in the range @p [__nth,__last) it + * holds that *j < *i is false. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth, + _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __nth); + __glibcxx_requires_valid_range(__nth, __last); + __glibcxx_requires_irreflexive(__first, __last); + + if (__first == __last || __nth == __last) + return; + + std::__introselect(__first, __nth, __last, + std::__lg(__last - __first) * 2, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Sort a sequence just enough to find a particular position + * using a predicate for comparison. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __nth Another iterator. + * @param __last Another iterator. + * @param __comp A comparison functor. + * @return Nothing. + * + * Rearranges the elements in the range @p [__first,__last) so that @p *__nth + * is the same element that would have been in that position had the + * whole sequence been sorted. The elements either side of @p *__nth are + * not completely sorted, but for any iterator @e i in the range + * @p [__first,__nth) and any iterator @e j in the range @p [__nth,__last) it + * holds that @p __comp(*j,*i) is false. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth, + _RandomAccessIterator __last, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_RandomAccessIterator>::value_type, + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __nth); + __glibcxx_requires_valid_range(__nth, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + if (__first == __last || __nth == __last) + return; + + std::__introselect(__first, __nth, __last, + std::__lg(__last - __first) * 2, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + /** + * @brief Sort the elements of a sequence. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @return Nothing. + * + * Sorts the elements in the range @p [__first,__last) in ascending order, + * such that for each iterator @e i in the range @p [__first,__last-1), + * *(i+1)<*i is false. + * + * The relative ordering of equivalent elements is not preserved, use + * @p stable_sort() if this is needed. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + sort(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + std::__sort(__first, __last, __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Sort the elements of a sequence using a predicate for comparison. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __comp A comparison functor. + * @return Nothing. + * + * Sorts the elements in the range @p [__first,__last) in ascending order, + * such that @p __comp(*(i+1),*i) is false for every iterator @e i in the + * range @p [__first,__last-1). + * + * The relative ordering of equivalent elements is not preserved, use + * @p stable_sort() if this is needed. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + sort(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_RandomAccessIterator>::value_type, + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + std::__sort(__first, __last, __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __merge(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + { + if (__comp(__first2, __first1)) + { + *__result = *__first2; + ++__first2; + } + else + { + *__result = *__first1; + ++__first1; + } + ++__result; + } + return std::copy(__first2, __last2, + std::copy(__first1, __last1, __result)); + } + + /** + * @brief Merges two sorted ranges. + * @ingroup sorting_algorithms + * @param __first1 An iterator. + * @param __first2 Another iterator. + * @param __last1 Another iterator. + * @param __last2 Another iterator. + * @param __result An iterator pointing to the end of the merged range. + * @return An output iterator equal to @p __result + (__last1 - __first1) + * + (__last2 - __first2). + * + * Merges the ranges @p [__first1,__last1) and @p [__first2,__last2) into + * the sorted range @p [__result, __result + (__last1-__first1) + + * (__last2-__first2)). Both input ranges must be sorted, and the + * output range must not overlap with either of the input ranges. + * The sort is @e stable, that is, for equivalent elements in the + * two ranges, elements from the first range will always come + * before elements from the second. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + merge(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set(__first1, __last1, __first2); + __glibcxx_requires_sorted_set(__first2, __last2, __first1); + __glibcxx_requires_irreflexive2(__first1, __last1); + __glibcxx_requires_irreflexive2(__first2, __last2); + + return _GLIBCXX_STD_A::__merge(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Merges two sorted ranges. + * @ingroup sorting_algorithms + * @param __first1 An iterator. + * @param __first2 Another iterator. + * @param __last1 Another iterator. + * @param __last2 Another iterator. + * @param __result An iterator pointing to the end of the merged range. + * @param __comp A functor to use for comparisons. + * @return An output iterator equal to @p __result + (__last1 - __first1) + * + (__last2 - __first2). + * + * Merges the ranges @p [__first1,__last1) and @p [__first2,__last2) into + * the sorted range @p [__result, __result + (__last1-__first1) + + * (__last2-__first2)). Both input ranges must be sorted, and the + * output range must not overlap with either of the input ranges. + * The sort is @e stable, that is, for equivalent elements in the + * two ranges, elements from the first range will always come + * before elements from the second. + * + * The comparison function should have the same effects on ordering as + * the function used for the initial sort. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + merge(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp); + __glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp); + __glibcxx_requires_irreflexive_pred2(__first1, __last1, __comp); + __glibcxx_requires_irreflexive_pred2(__first2, __last2, __comp); + + return _GLIBCXX_STD_A::__merge(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + inline void + __stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _ValueType; + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _DistanceType; + + typedef _Temporary_buffer<_RandomAccessIterator, _ValueType> _TmpBuf; + _TmpBuf __buf(__first, std::distance(__first, __last)); + + if (__buf.begin() == 0) + std::__inplace_stable_sort(__first, __last, __comp); + else + std::__stable_sort_adaptive(__first, __last, __buf.begin(), + _DistanceType(__buf.size()), __comp); + } + + /** + * @brief Sort the elements of a sequence, preserving the relative order + * of equivalent elements. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @return Nothing. + * + * Sorts the elements in the range @p [__first,__last) in ascending order, + * such that for each iterator @p i in the range @p [__first,__last-1), + * @p *(i+1)<*i is false. + * + * The relative ordering of equivalent elements is preserved, so any two + * elements @p x and @p y in the range @p [__first,__last) such that + * @p x + inline void + stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + _GLIBCXX_STD_A::__stable_sort(__first, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Sort the elements of a sequence using a predicate for comparison, + * preserving the relative order of equivalent elements. + * @ingroup sorting_algorithms + * @param __first An iterator. + * @param __last Another iterator. + * @param __comp A comparison functor. + * @return Nothing. + * + * Sorts the elements in the range @p [__first,__last) in ascending order, + * such that for each iterator @p i in the range @p [__first,__last-1), + * @p __comp(*(i+1),*i) is false. + * + * The relative ordering of equivalent elements is preserved, so any two + * elements @p x and @p y in the range @p [__first,__last) such that + * @p __comp(x,y) is false and @p __comp(y,x) is false will have the same + * relative ordering after calling @p stable_sort(). + */ + template + inline void + stable_sort(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_RandomAccessIterator>::value_type, + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + _GLIBCXX_STD_A::__stable_sort(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __set_union(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + { + if (__comp(__first1, __first2)) + { + *__result = *__first1; + ++__first1; + } + else if (__comp(__first2, __first1)) + { + *__result = *__first2; + ++__first2; + } + else + { + *__result = *__first1; + ++__first1; + ++__first2; + } + ++__result; + } + return std::copy(__first2, __last2, + std::copy(__first1, __last1, __result)); + } + + /** + * @brief Return the union of two sorted ranges. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * each range in order to the output range. Iterators increment for each + * range. When the current element of one range is less than the other, + * that element is copied and the iterator advanced. If an element is + * contained in both ranges, the element from the first range is copied and + * both ranges advance. The output range may not overlap either input + * range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_union(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set(__first1, __last1, __first2); + __glibcxx_requires_sorted_set(__first2, __last2, __first1); + __glibcxx_requires_irreflexive2(__first1, __last1); + __glibcxx_requires_irreflexive2(__first2, __last2); + + return _GLIBCXX_STD_A::__set_union(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return the union of two sorted ranges using a comparison functor. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @param __comp The comparison functor. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * each range in order to the output range. Iterators increment for each + * range. When the current element of one range is less than the other + * according to @p __comp, that element is copied and the iterator advanced. + * If an equivalent element according to @p __comp is contained in both + * ranges, the element from the first range is copied and both ranges + * advance. The output range may not overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_union(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp); + __glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp); + __glibcxx_requires_irreflexive_pred2(__first1, __last1, __comp); + __glibcxx_requires_irreflexive_pred2(__first2, __last2, __comp); + + return _GLIBCXX_STD_A::__set_union(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __set_intersection(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + if (__comp(__first1, __first2)) + ++__first1; + else if (__comp(__first2, __first1)) + ++__first2; + else + { + *__result = *__first1; + ++__first1; + ++__first2; + ++__result; + } + return __result; + } + + /** + * @brief Return the intersection of two sorted ranges. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * both ranges in order to the output range. Iterators increment for each + * range. When the current element of one range is less than the other, + * that iterator advances. If an element is contained in both ranges, the + * element from the first range is copied and both ranges advance. The + * output range may not overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_intersection(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set(__first1, __last1, __first2); + __glibcxx_requires_sorted_set(__first2, __last2, __first1); + __glibcxx_requires_irreflexive2(__first1, __last1); + __glibcxx_requires_irreflexive2(__first2, __last2); + + return _GLIBCXX_STD_A::__set_intersection(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return the intersection of two sorted ranges using comparison + * functor. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @param __comp The comparison functor. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * both ranges in order to the output range. Iterators increment for each + * range. When the current element of one range is less than the other + * according to @p __comp, that iterator advances. If an element is + * contained in both ranges according to @p __comp, the element from the + * first range is copied and both ranges advance. The output range may not + * overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_intersection(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp); + __glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp); + __glibcxx_requires_irreflexive_pred2(__first1, __last1, __comp); + __glibcxx_requires_irreflexive_pred2(__first2, __last2, __comp); + + return _GLIBCXX_STD_A::__set_intersection(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __set_difference(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + if (__comp(__first1, __first2)) + { + *__result = *__first1; + ++__first1; + ++__result; + } + else if (__comp(__first2, __first1)) + ++__first2; + else + { + ++__first1; + ++__first2; + } + return std::copy(__first1, __last1, __result); + } + + /** + * @brief Return the difference of two sorted ranges. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * the first range but not the second in order to the output range. + * Iterators increment for each range. When the current element of the + * first range is less than the second, that element is copied and the + * iterator advances. If the current element of the second range is less, + * the iterator advances, but no element is copied. If an element is + * contained in both ranges, no elements are copied and both ranges + * advance. The output range may not overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_difference(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set(__first1, __last1, __first2); + __glibcxx_requires_sorted_set(__first2, __last2, __first1); + __glibcxx_requires_irreflexive2(__first1, __last1); + __glibcxx_requires_irreflexive2(__first2, __last2); + + return _GLIBCXX_STD_A::__set_difference(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return the difference of two sorted ranges using comparison + * functor. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @param __comp The comparison functor. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * the first range but not the second in order to the output range. + * Iterators increment for each range. When the current element of the + * first range is less than the second according to @p __comp, that element + * is copied and the iterator advances. If the current element of the + * second range is less, no element is copied and the iterator advances. + * If an element is contained in both ranges according to @p __comp, no + * elements are copied and both ranges advance. The output range may not + * overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_difference(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp); + __glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp); + __glibcxx_requires_irreflexive_pred2(__first1, __last1, __comp); + __glibcxx_requires_irreflexive_pred2(__first2, __last2, __comp); + + return _GLIBCXX_STD_A::__set_difference(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + __set_symmetric_difference(_InputIterator1 __first1, + _InputIterator1 __last1, + _InputIterator2 __first2, + _InputIterator2 __last2, + _OutputIterator __result, + _Compare __comp) + { + while (__first1 != __last1 && __first2 != __last2) + if (__comp(__first1, __first2)) + { + *__result = *__first1; + ++__first1; + ++__result; + } + else if (__comp(__first2, __first1)) + { + *__result = *__first2; + ++__first2; + ++__result; + } + else + { + ++__first1; + ++__first2; + } + return std::copy(__first2, __last2, + std::copy(__first1, __last1, __result)); + } + + /** + * @brief Return the symmetric difference of two sorted ranges. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * one range but not the other in order to the output range. Iterators + * increment for each range. When the current element of one range is less + * than the other, that element is copied and the iterator advances. If an + * element is contained in both ranges, no elements are copied and both + * ranges advance. The output range may not overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set(__first1, __last1, __first2); + __glibcxx_requires_sorted_set(__first2, __last2, __first1); + __glibcxx_requires_irreflexive2(__first1, __last1); + __glibcxx_requires_irreflexive2(__first2, __last2); + + return _GLIBCXX_STD_A::__set_symmetric_difference(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return the symmetric difference of two sorted ranges using + * comparison functor. + * @ingroup set_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __last2 End of second range. + * @param __result Start of output range. + * @param __comp The comparison functor. + * @return End of the output range. + * @ingroup set_algorithms + * + * This operation iterates over both ranges, copying elements present in + * one range but not the other in order to the output range. Iterators + * increment for each range. When the current element of one range is less + * than the other according to @p comp, that element is copied and the + * iterator advances. If an element is contained in both ranges according + * to @p __comp, no elements are copied and both ranges advance. The output + * range may not overlap either input range. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _OutputIterator __result, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_InputIterator2>::value_type, + typename iterator_traits<_InputIterator1>::value_type>) + __glibcxx_requires_sorted_set_pred(__first1, __last1, __first2, __comp); + __glibcxx_requires_sorted_set_pred(__first2, __last2, __first1, __comp); + __glibcxx_requires_irreflexive_pred2(__first1, __last1, __comp); + __glibcxx_requires_irreflexive_pred2(__first2, __last2, __comp); + + return _GLIBCXX_STD_A::__set_symmetric_difference(__first1, __last1, + __first2, __last2, __result, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX14_CONSTEXPR + _ForwardIterator + __min_element(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + if (__first == __last) + return __first; + _ForwardIterator __result = __first; + while (++__first != __last) + if (__comp(__first, __result)) + __result = __first; + return __result; + } + + /** + * @brief Return the minimum element in a range. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @return Iterator referencing the first instance of the smallest value. + */ + template + _GLIBCXX14_CONSTEXPR + _ForwardIterator + inline min_element(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + return _GLIBCXX_STD_A::__min_element(__first, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return the minimum element in a range using comparison functor. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @param __comp Comparison functor. + * @return Iterator referencing the first instance of the smallest value + * according to __comp. + */ + template + _GLIBCXX14_CONSTEXPR + inline _ForwardIterator + min_element(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + return _GLIBCXX_STD_A::__min_element(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + + template + _GLIBCXX14_CONSTEXPR + _ForwardIterator + __max_element(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + if (__first == __last) return __first; + _ForwardIterator __result = __first; + while (++__first != __last) + if (__comp(__result, __first)) + __result = __first; + return __result; + } + + /** + * @brief Return the maximum element in a range. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @return Iterator referencing the first instance of the largest value. + */ + template + _GLIBCXX14_CONSTEXPR + inline _ForwardIterator + max_element(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + return _GLIBCXX_STD_A::__max_element(__first, __last, + __gnu_cxx::__ops::__iter_less_iter()); + } + + /** + * @brief Return the maximum element in a range using comparison functor. + * @ingroup sorting_algorithms + * @param __first Start of range. + * @param __last End of range. + * @param __comp Comparison functor. + * @return Iterator referencing the first instance of the largest value + * according to __comp. + */ + template + _GLIBCXX14_CONSTEXPR + inline _ForwardIterator + max_element(_ForwardIterator __first, _ForwardIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_Compare, + typename iterator_traits<_ForwardIterator>::value_type, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + return _GLIBCXX_STD_A::__max_element(__first, __last, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + +#if __cplusplus >= 201402L + /// Reservoir sampling algorithm. + template + _RandomAccessIterator + __sample(_InputIterator __first, _InputIterator __last, input_iterator_tag, + _RandomAccessIterator __out, random_access_iterator_tag, + _Size __n, _UniformRandomBitGenerator&& __g) + { + using __distrib_type = uniform_int_distribution<_Size>; + using __param_type = typename __distrib_type::param_type; + __distrib_type __d{}; + _Size __sample_sz = 0; + while (__first != __last && __sample_sz != __n) + { + __out[__sample_sz++] = *__first; + ++__first; + } + for (auto __pop_sz = __sample_sz; __first != __last; + ++__first, (void) ++__pop_sz) + { + const auto __k = __d(__g, __param_type{0, __pop_sz}); + if (__k < __n) + __out[__k] = *__first; + } + return __out + __sample_sz; + } + + /// Selection sampling algorithm. + template + _OutputIterator + __sample(_ForwardIterator __first, _ForwardIterator __last, + forward_iterator_tag, + _OutputIterator __out, _Cat, + _Size __n, _UniformRandomBitGenerator&& __g) + { + using __distrib_type = uniform_int_distribution<_Size>; + using __param_type = typename __distrib_type::param_type; + using _USize = make_unsigned_t<_Size>; + using _Gen = remove_reference_t<_UniformRandomBitGenerator>; + using __uc_type = common_type_t; + + if (__first == __last) + return __out; + + __distrib_type __d{}; + _Size __unsampled_sz = std::distance(__first, __last); + __n = std::min(__n, __unsampled_sz); + + // If possible, we use __gen_two_uniform_ints to efficiently produce + // two random numbers using a single distribution invocation: + + const __uc_type __urngrange = __g.max() - __g.min(); + if (__urngrange / __uc_type(__unsampled_sz) >= __uc_type(__unsampled_sz)) + // I.e. (__urngrange >= __unsampled_sz * __unsampled_sz) but without + // wrapping issues. + { + while (__n != 0 && __unsampled_sz >= 2) + { + const pair<_Size, _Size> __p = + __gen_two_uniform_ints(__unsampled_sz, __unsampled_sz - 1, __g); + + --__unsampled_sz; + if (__p.first < __n) + { + *__out++ = *__first; + --__n; + } + + ++__first; + + if (__n == 0) break; + + --__unsampled_sz; + if (__p.second < __n) + { + *__out++ = *__first; + --__n; + } + + ++__first; + } + } + + // The loop above is otherwise equivalent to this one-at-a-time version: + + for (; __n != 0; ++__first) + if (__d(__g, __param_type{0, --__unsampled_sz}) < __n) + { + *__out++ = *__first; + --__n; + } + return __out; + } + +#if __cplusplus > 201402L +#define __cpp_lib_sample 201603 + /// Take a random sample from a population. + template + _SampleIterator + sample(_PopulationIterator __first, _PopulationIterator __last, + _SampleIterator __out, _Distance __n, + _UniformRandomBitGenerator&& __g) + { + using __pop_cat = typename + std::iterator_traits<_PopulationIterator>::iterator_category; + using __samp_cat = typename + std::iterator_traits<_SampleIterator>::iterator_category; + + static_assert( + __or_, + is_convertible<__samp_cat, random_access_iterator_tag>>::value, + "output range must use a RandomAccessIterator when input range" + " does not meet the ForwardIterator requirements"); + + static_assert(is_integral<_Distance>::value, + "sample size must be an integer type"); + + typename iterator_traits<_PopulationIterator>::difference_type __d = __n; + return _GLIBCXX_STD_A:: + __sample(__first, __last, __pop_cat{}, __out, __samp_cat{}, __d, + std::forward<_UniformRandomBitGenerator>(__g)); + } +#endif // C++17 +#endif // C++14 + +_GLIBCXX_END_NAMESPACE_ALGO +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_ALGO_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_algobase.h b/resources/sources/avr-libstdcpp/include/bits/stl_algobase.h new file mode 100644 index 000000000..dd2bd1727 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_algobase.h @@ -0,0 +1,1959 @@ +// Core algorithmic facilities -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_algobase.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{algorithm} + */ + +#ifndef _STL_ALGOBASE_H +#define _STL_ALGOBASE_H 1 + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include // For std::swap +#include +#if __cplusplus >= 201103L +# include +#endif +#if __cplusplus > 201703L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /* + * A constexpr wrapper for __builtin_memcmp. + * @param __num The number of elements of type _Tp (not bytes). + */ + template + _GLIBCXX14_CONSTEXPR + inline int + __memcmp(const _Tp* __first1, const _Up* __first2, size_t __num) + { +#if __cplusplus >= 201103L + static_assert(sizeof(_Tp) == sizeof(_Up), "can be compared with memcmp"); +#endif +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + { + for(; __num > 0; ++__first1, ++__first2, --__num) + if (*__first1 != *__first2) + return *__first1 < *__first2 ? -1 : 1; + return 0; + } + else +#endif + return __builtin_memcmp(__first1, __first2, sizeof(_Tp) * __num); + } + +#if __cplusplus < 201103L + // See http://gcc.gnu.org/ml/libstdc++/2004-08/msg00167.html: in a + // nutshell, we are partially implementing the resolution of DR 187, + // when it's safe, i.e., the value_types are equal. + template + struct __iter_swap + { + template + static void + iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b) + { + typedef typename iterator_traits<_ForwardIterator1>::value_type + _ValueType1; + _ValueType1 __tmp = *__a; + *__a = *__b; + *__b = __tmp; + } + }; + + template<> + struct __iter_swap + { + template + static void + iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b) + { + swap(*__a, *__b); + } + }; +#endif // C++03 + + /** + * @brief Swaps the contents of two iterators. + * @ingroup mutating_algorithms + * @param __a An iterator. + * @param __b Another iterator. + * @return Nothing. + * + * This function swaps the values pointed to by two iterators, not the + * iterators themselves. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator1>) + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator2>) + +#if __cplusplus < 201103L + typedef typename iterator_traits<_ForwardIterator1>::value_type + _ValueType1; + typedef typename iterator_traits<_ForwardIterator2>::value_type + _ValueType2; + + __glibcxx_function_requires(_ConvertibleConcept<_ValueType1, + _ValueType2>) + __glibcxx_function_requires(_ConvertibleConcept<_ValueType2, + _ValueType1>) + + typedef typename iterator_traits<_ForwardIterator1>::reference + _ReferenceType1; + typedef typename iterator_traits<_ForwardIterator2>::reference + _ReferenceType2; + std::__iter_swap<__are_same<_ValueType1, _ValueType2>::__value + && __are_same<_ValueType1&, _ReferenceType1>::__value + && __are_same<_ValueType2&, _ReferenceType2>::__value>:: + iter_swap(__a, __b); +#else + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 187. iter_swap underspecified + swap(*__a, *__b); +#endif + } + + /** + * @brief Swap the elements of two sequences. + * @ingroup mutating_algorithms + * @param __first1 A forward iterator. + * @param __last1 A forward iterator. + * @param __first2 A forward iterator. + * @return An iterator equal to @p first2+(last1-first1). + * + * Swaps each element in the range @p [first1,last1) with the + * corresponding element in the range @p [first2,(last1-first1)). + * The ranges must not overlap. + */ + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator2 + swap_ranges(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator1>) + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator2>) + __glibcxx_requires_valid_range(__first1, __last1); + + for (; __first1 != __last1; ++__first1, (void)++__first2) + std::iter_swap(__first1, __first2); + return __first2; + } + + /** + * @brief This does what you think it does. + * @ingroup sorting_algorithms + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @return The lesser of the parameters. + * + * This is the simple classic generic implementation. It will work on + * temporary expressions, since they are only evaluated once, unlike a + * preprocessor macro. + */ + template + _GLIBCXX14_CONSTEXPR + inline const _Tp& + min(const _Tp& __a, const _Tp& __b) + { + // concept requirements + __glibcxx_function_requires(_LessThanComparableConcept<_Tp>) + //return __b < __a ? __b : __a; + if (__b < __a) + return __b; + return __a; + } + + /** + * @brief This does what you think it does. + * @ingroup sorting_algorithms + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @return The greater of the parameters. + * + * This is the simple classic generic implementation. It will work on + * temporary expressions, since they are only evaluated once, unlike a + * preprocessor macro. + */ + template + _GLIBCXX14_CONSTEXPR + inline const _Tp& + max(const _Tp& __a, const _Tp& __b) + { + // concept requirements + __glibcxx_function_requires(_LessThanComparableConcept<_Tp>) + //return __a < __b ? __b : __a; + if (__a < __b) + return __b; + return __a; + } + + /** + * @brief This does what you think it does. + * @ingroup sorting_algorithms + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @param __comp A @link comparison_functors comparison functor@endlink. + * @return The lesser of the parameters. + * + * This will work on temporary expressions, since they are only evaluated + * once, unlike a preprocessor macro. + */ + template + _GLIBCXX14_CONSTEXPR + inline const _Tp& + min(const _Tp& __a, const _Tp& __b, _Compare __comp) + { + //return __comp(__b, __a) ? __b : __a; + if (__comp(__b, __a)) + return __b; + return __a; + } + + /** + * @brief This does what you think it does. + * @ingroup sorting_algorithms + * @param __a A thing of arbitrary type. + * @param __b Another thing of arbitrary type. + * @param __comp A @link comparison_functors comparison functor@endlink. + * @return The greater of the parameters. + * + * This will work on temporary expressions, since they are only evaluated + * once, unlike a preprocessor macro. + */ + template + _GLIBCXX14_CONSTEXPR + inline const _Tp& + max(const _Tp& __a, const _Tp& __b, _Compare __comp) + { + //return __comp(__a, __b) ? __b : __a; + if (__comp(__a, __b)) + return __b; + return __a; + } + + // Fallback implementation of the function in bits/stl_iterator.h used to + // remove the __normal_iterator wrapper. See copy, fill, ... + template + _GLIBCXX20_CONSTEXPR + inline _Iterator + __niter_base(_Iterator __it) + _GLIBCXX_NOEXCEPT_IF(std::is_nothrow_copy_constructible<_Iterator>::value) + { return __it; } + + // Reverse the __niter_base transformation to get a + // __normal_iterator back again (this assumes that __normal_iterator + // is only used to wrap random access iterators, like pointers). + template + _GLIBCXX20_CONSTEXPR + inline _From + __niter_wrap(_From __from, _To __res) + { return __from + (__res - std::__niter_base(__from)); } + + // No need to wrap, iterator already has the right type. + template + _GLIBCXX20_CONSTEXPR + inline _Iterator + __niter_wrap(const _Iterator&, _Iterator __res) + { return __res; } + + // All of these auxiliary structs serve two purposes. (1) Replace + // calls to copy with memmove whenever possible. (Memmove, not memcpy, + // because the input and output ranges are permitted to overlap.) + // (2) If we're using random access iterators, then write the loop as + // a for loop with an explicit count. + + template + struct __copy_move + { + template + _GLIBCXX20_CONSTEXPR + static _OI + __copy_m(_II __first, _II __last, _OI __result) + { + for (; __first != __last; ++__result, (void)++__first) + *__result = *__first; + return __result; + } + }; + +#if __cplusplus >= 201103L + template + struct __copy_move + { + template + _GLIBCXX20_CONSTEXPR + static _OI + __copy_m(_II __first, _II __last, _OI __result) + { + for (; __first != __last; ++__result, (void)++__first) + *__result = std::move(*__first); + return __result; + } + }; +#endif + + template<> + struct __copy_move + { + template + _GLIBCXX20_CONSTEXPR + static _OI + __copy_m(_II __first, _II __last, _OI __result) + { + typedef typename iterator_traits<_II>::difference_type _Distance; + for(_Distance __n = __last - __first; __n > 0; --__n) + { + *__result = *__first; + ++__first; + ++__result; + } + return __result; + } + }; + +#if __cplusplus >= 201103L + template<> + struct __copy_move + { + template + _GLIBCXX20_CONSTEXPR + static _OI + __copy_m(_II __first, _II __last, _OI __result) + { + typedef typename iterator_traits<_II>::difference_type _Distance; + for(_Distance __n = __last - __first; __n > 0; --__n) + { + *__result = std::move(*__first); + ++__first; + ++__result; + } + return __result; + } + }; +#endif + + template + struct __copy_move<_IsMove, true, random_access_iterator_tag> + { + template + _GLIBCXX20_CONSTEXPR + static _Tp* + __copy_m(const _Tp* __first, const _Tp* __last, _Tp* __result) + { +#if __cplusplus >= 201103L + using __assignable = conditional<_IsMove, + is_move_assignable<_Tp>, + is_copy_assignable<_Tp>>; + // trivial types can have deleted assignment + static_assert( __assignable::type::value, "type is not assignable" ); +#endif + const ptrdiff_t _Num = __last - __first; + if (_Num) + __builtin_memmove(__result, __first, sizeof(_Tp) * _Num); + return __result + _Num; + } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _OI + __copy_move_a2(_II __first, _II __last, _OI __result) + { + typedef typename iterator_traits<_II>::iterator_category _Category; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return std::__copy_move<_IsMove, false, _Category>:: + __copy_m(__first, __last, __result); +#endif + return std::__copy_move<_IsMove, __memcpyable<_OI, _II>::__value, + _Category>::__copy_m(__first, __last, __result); + } + +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + struct _Deque_iterator; + +_GLIBCXX_END_NAMESPACE_CONTAINER + + template + _OI + __copy_move_a1(_GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>, + _OI); + + template + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*> + __copy_move_a1(_GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr>, + _GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr>, + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*>); + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> >::__type + __copy_move_a1(_II, _II, _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*>); + + template + _GLIBCXX20_CONSTEXPR + inline _OI + __copy_move_a1(_II __first, _II __last, _OI __result) + { return std::__copy_move_a2<_IsMove>(__first, __last, __result); } + + template + _GLIBCXX20_CONSTEXPR + inline _OI + __copy_move_a(_II __first, _II __last, _OI __result) + { + return std::__niter_wrap(__result, + std::__copy_move_a1<_IsMove>(std::__niter_base(__first), + std::__niter_base(__last), + std::__niter_base(__result))); + } + + /** + * @brief Copies the range [first,last) into result. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @return result + (last - first) + * + * This inline function will boil down to a call to @c memmove whenever + * possible. Failing that, if random access iterators are passed, then the + * loop count will be known (and therefore a candidate for compiler + * optimizations such as unrolling). Result may not be contained within + * [first,last); the copy_backward function should be used instead. + * + * Note that the end of the output range is permitted to be contained + * within [first,last). + */ + template + _GLIBCXX20_CONSTEXPR + inline _OI + copy(_II __first, _II __last, _OI __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_II>) + __glibcxx_function_requires(_OutputIteratorConcept<_OI, + typename iterator_traits<_II>::value_type>) + __glibcxx_requires_can_increment_range(__first, __last, __result); + + return std::__copy_move_a<__is_move_iterator<_II>::__value> + (std::__miter_base(__first), std::__miter_base(__last), __result); + } + +#if __cplusplus >= 201103L + /** + * @brief Moves the range [first,last) into result. + * @ingroup mutating_algorithms + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @return result + (last - first) + * + * This inline function will boil down to a call to @c memmove whenever + * possible. Failing that, if random access iterators are passed, then the + * loop count will be known (and therefore a candidate for compiler + * optimizations such as unrolling). Result may not be contained within + * [first,last); the move_backward function should be used instead. + * + * Note that the end of the output range is permitted to be contained + * within [first,last). + */ + template + _GLIBCXX20_CONSTEXPR + inline _OI + move(_II __first, _II __last, _OI __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_II>) + __glibcxx_function_requires(_OutputIteratorConcept<_OI, + typename iterator_traits<_II>::value_type>) + __glibcxx_requires_can_increment_range(__first, __last, __result); + + return std::__copy_move_a(std::__miter_base(__first), + std::__miter_base(__last), __result); + } + +#define _GLIBCXX_MOVE3(_Tp, _Up, _Vp) std::move(_Tp, _Up, _Vp) +#else +#define _GLIBCXX_MOVE3(_Tp, _Up, _Vp) std::copy(_Tp, _Up, _Vp) +#endif + + template + struct __copy_move_backward + { + template + _GLIBCXX20_CONSTEXPR + static _BI2 + __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result) + { + while (__first != __last) + *--__result = *--__last; + return __result; + } + }; + +#if __cplusplus >= 201103L + template + struct __copy_move_backward + { + template + _GLIBCXX20_CONSTEXPR + static _BI2 + __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result) + { + while (__first != __last) + *--__result = std::move(*--__last); + return __result; + } + }; +#endif + + template<> + struct __copy_move_backward + { + template + _GLIBCXX20_CONSTEXPR + static _BI2 + __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result) + { + typename iterator_traits<_BI1>::difference_type + __n = __last - __first; + for (; __n > 0; --__n) + *--__result = *--__last; + return __result; + } + }; + +#if __cplusplus >= 201103L + template<> + struct __copy_move_backward + { + template + _GLIBCXX20_CONSTEXPR + static _BI2 + __copy_move_b(_BI1 __first, _BI1 __last, _BI2 __result) + { + typename iterator_traits<_BI1>::difference_type + __n = __last - __first; + for (; __n > 0; --__n) + *--__result = std::move(*--__last); + return __result; + } + }; +#endif + + template + struct __copy_move_backward<_IsMove, true, random_access_iterator_tag> + { + template + _GLIBCXX20_CONSTEXPR + static _Tp* + __copy_move_b(const _Tp* __first, const _Tp* __last, _Tp* __result) + { +#if __cplusplus >= 201103L + using __assignable = conditional<_IsMove, + is_move_assignable<_Tp>, + is_copy_assignable<_Tp>>; + // trivial types can have deleted assignment + static_assert( __assignable::type::value, "type is not assignable" ); +#endif + const ptrdiff_t _Num = __last - __first; + if (_Num) + __builtin_memmove(__result - _Num, __first, sizeof(_Tp) * _Num); + return __result - _Num; + } + }; + + template + _GLIBCXX20_CONSTEXPR + inline _BI2 + __copy_move_backward_a2(_BI1 __first, _BI1 __last, _BI2 __result) + { + typedef typename iterator_traits<_BI1>::iterator_category _Category; +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return std::__copy_move_backward<_IsMove, false, _Category>:: + __copy_move_b(__first, __last, __result); +#endif + return std::__copy_move_backward<_IsMove, + __memcpyable<_BI2, _BI1>::__value, + _Category>::__copy_move_b(__first, + __last, + __result); + } + + template + _GLIBCXX20_CONSTEXPR + inline _BI2 + __copy_move_backward_a1(_BI1 __first, _BI1 __last, _BI2 __result) + { return std::__copy_move_backward_a2<_IsMove>(__first, __last, __result); } + + template + _OI + __copy_move_backward_a1(_GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>, + _OI); + + template + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*> + __copy_move_backward_a1( + _GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr>, + _GLIBCXX_STD_C::_Deque_iterator<_ITp, _IRef, _IPtr>, + _GLIBCXX_STD_C::_Deque_iterator<_OTp, _OTp&, _OTp*>); + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*> >::__type + __copy_move_backward_a1(_II, _II, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*>); + + template + _GLIBCXX20_CONSTEXPR + inline _OI + __copy_move_backward_a(_II __first, _II __last, _OI __result) + { + return std::__niter_wrap(__result, + std::__copy_move_backward_a1<_IsMove> + (std::__niter_base(__first), std::__niter_base(__last), + std::__niter_base(__result))); + } + + /** + * @brief Copies the range [first,last) into result. + * @ingroup mutating_algorithms + * @param __first A bidirectional iterator. + * @param __last A bidirectional iterator. + * @param __result A bidirectional iterator. + * @return result - (last - first) + * + * The function has the same effect as copy, but starts at the end of the + * range and works its way to the start, returning the start of the result. + * This inline function will boil down to a call to @c memmove whenever + * possible. Failing that, if random access iterators are passed, then the + * loop count will be known (and therefore a candidate for compiler + * optimizations such as unrolling). + * + * Result may not be in the range (first,last]. Use copy instead. Note + * that the start of the output range may overlap [first,last). + */ + template + _GLIBCXX20_CONSTEXPR + inline _BI2 + copy_backward(_BI1 __first, _BI1 __last, _BI2 __result) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept<_BI1>) + __glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept<_BI2>) + __glibcxx_function_requires(_ConvertibleConcept< + typename iterator_traits<_BI1>::value_type, + typename iterator_traits<_BI2>::value_type>) + __glibcxx_requires_can_decrement_range(__first, __last, __result); + + return std::__copy_move_backward_a<__is_move_iterator<_BI1>::__value> + (std::__miter_base(__first), std::__miter_base(__last), __result); + } + +#if __cplusplus >= 201103L + /** + * @brief Moves the range [first,last) into result. + * @ingroup mutating_algorithms + * @param __first A bidirectional iterator. + * @param __last A bidirectional iterator. + * @param __result A bidirectional iterator. + * @return result - (last - first) + * + * The function has the same effect as move, but starts at the end of the + * range and works its way to the start, returning the start of the result. + * This inline function will boil down to a call to @c memmove whenever + * possible. Failing that, if random access iterators are passed, then the + * loop count will be known (and therefore a candidate for compiler + * optimizations such as unrolling). + * + * Result may not be in the range (first,last]. Use move instead. Note + * that the start of the output range may overlap [first,last). + */ + template + _GLIBCXX20_CONSTEXPR + inline _BI2 + move_backward(_BI1 __first, _BI1 __last, _BI2 __result) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept<_BI1>) + __glibcxx_function_requires(_Mutable_BidirectionalIteratorConcept<_BI2>) + __glibcxx_function_requires(_ConvertibleConcept< + typename iterator_traits<_BI1>::value_type, + typename iterator_traits<_BI2>::value_type>) + __glibcxx_requires_can_decrement_range(__first, __last, __result); + + return std::__copy_move_backward_a(std::__miter_base(__first), + std::__miter_base(__last), + __result); + } + +#define _GLIBCXX_MOVE_BACKWARD3(_Tp, _Up, _Vp) std::move_backward(_Tp, _Up, _Vp) +#else +#define _GLIBCXX_MOVE_BACKWARD3(_Tp, _Up, _Vp) std::copy_backward(_Tp, _Up, _Vp) +#endif + + template + _GLIBCXX20_CONSTEXPR + inline typename + __gnu_cxx::__enable_if::__value, void>::__type + __fill_a1(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __value) + { + for (; __first != __last; ++__first) + *__first = __value; + } + + template + _GLIBCXX20_CONSTEXPR + inline typename + __gnu_cxx::__enable_if<__is_scalar<_Tp>::__value, void>::__type + __fill_a1(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __value) + { + const _Tp __tmp = __value; + for (; __first != __last; ++__first) + *__first = __tmp; + } + + // Specialization: for char types we can use memset. + template + _GLIBCXX20_CONSTEXPR + inline typename + __gnu_cxx::__enable_if<__is_byte<_Tp>::__value, void>::__type + __fill_a1(_Tp* __first, _Tp* __last, const _Tp& __c) + { + const _Tp __tmp = __c; +#if __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + { + for (; __first != __last; ++__first) + *__first = __tmp; + return; + } +#endif + if (const size_t __len = __last - __first) + __builtin_memset(__first, static_cast(__tmp), __len); + } + + template + _GLIBCXX20_CONSTEXPR + inline void + __fill_a1(::__gnu_cxx::__normal_iterator<_Ite, _Cont> __first, + ::__gnu_cxx::__normal_iterator<_Ite, _Cont> __last, + const _Tp& __value) + { std::__fill_a1(__first.base(), __last.base(), __value); } + + template + void + __fill_a1(const _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*>&, + const _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Tp&, _Tp*>&, + const _VTp&); + + template + _GLIBCXX20_CONSTEXPR + inline void + __fill_a(_FIte __first, _FIte __last, const _Tp& __value) + { std::__fill_a1(__first, __last, __value); } + + /** + * @brief Fills the range [first,last) with copies of value. + * @ingroup mutating_algorithms + * @param __first A forward iterator. + * @param __last A forward iterator. + * @param __value A reference-to-const of arbitrary type. + * @return Nothing. + * + * This function fills a range with copies of the same value. For char + * types filling contiguous areas of memory, this becomes an inline call + * to @c memset or @c wmemset. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_requires_valid_range(__first, __last); + + std::__fill_a(__first, __last, __value); + } + + // Used by fill_n, generate_n, etc. to convert _Size to an integral type: + inline _GLIBCXX_CONSTEXPR int + __size_to_integer(int __n) { return __n; } + inline _GLIBCXX_CONSTEXPR unsigned + __size_to_integer(unsigned __n) { return __n; } + inline _GLIBCXX_CONSTEXPR long + __size_to_integer(long __n) { return __n; } + inline _GLIBCXX_CONSTEXPR unsigned long + __size_to_integer(unsigned long __n) { return __n; } + inline _GLIBCXX_CONSTEXPR long long + __size_to_integer(long long __n) { return __n; } + inline _GLIBCXX_CONSTEXPR unsigned long long + __size_to_integer(unsigned long long __n) { return __n; } + +#if defined(__GLIBCXX_TYPE_INT_N_0) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_0 + __size_to_integer(__GLIBCXX_TYPE_INT_N_0 __n) { return __n; } + inline _GLIBCXX_CONSTEXPR unsigned __GLIBCXX_TYPE_INT_N_0 + __size_to_integer(unsigned __GLIBCXX_TYPE_INT_N_0 __n) { return __n; } +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_1 + __size_to_integer(__GLIBCXX_TYPE_INT_N_1 __n) { return __n; } + inline _GLIBCXX_CONSTEXPR unsigned __GLIBCXX_TYPE_INT_N_1 + __size_to_integer(unsigned __GLIBCXX_TYPE_INT_N_1 __n) { return __n; } +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_2 + __size_to_integer(__GLIBCXX_TYPE_INT_N_2 __n) { return __n; } + inline _GLIBCXX_CONSTEXPR unsigned __GLIBCXX_TYPE_INT_N_2 + __size_to_integer(unsigned __GLIBCXX_TYPE_INT_N_2 __n) { return __n; } +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + inline _GLIBCXX_CONSTEXPR unsigned __GLIBCXX_TYPE_INT_N_3 + __size_to_integer(__GLIBCXX_TYPE_INT_N_3 __n) { return __n; } + inline _GLIBCXX_CONSTEXPR __GLIBCXX_TYPE_INT_N_3 + __size_to_integer(unsigned __GLIBCXX_TYPE_INT_N_3 __n) { return __n; } +#endif + + inline _GLIBCXX_CONSTEXPR long long + __size_to_integer(float __n) { return __n; } + inline _GLIBCXX_CONSTEXPR long long + __size_to_integer(double __n) { return __n; } + inline _GLIBCXX_CONSTEXPR long long + __size_to_integer(long double __n) { return __n; } +#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) + inline _GLIBCXX_CONSTEXPR long long + __size_to_integer(__float128 __n) { return __n; } +#endif + + template + _GLIBCXX20_CONSTEXPR + inline typename + __gnu_cxx::__enable_if::__value, _OutputIterator>::__type + __fill_n_a1(_OutputIterator __first, _Size __n, const _Tp& __value) + { + for (; __n > 0; --__n, (void) ++__first) + *__first = __value; + return __first; + } + + template + _GLIBCXX20_CONSTEXPR + inline typename + __gnu_cxx::__enable_if<__is_scalar<_Tp>::__value, _OutputIterator>::__type + __fill_n_a1(_OutputIterator __first, _Size __n, const _Tp& __value) + { + const _Tp __tmp = __value; + for (; __n > 0; --__n, (void) ++__first) + *__first = __tmp; + return __first; + } + + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + __fill_n_a(_OutputIterator __first, _Size __n, const _Tp& __value, + std::output_iterator_tag) + { +#if __cplusplus >= 201103L + static_assert(is_integral<_Size>{}, "fill_n must pass integral size"); +#endif + return __fill_n_a1(__first, __n, __value); + } + + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + __fill_n_a(_OutputIterator __first, _Size __n, const _Tp& __value, + std::input_iterator_tag) + { +#if __cplusplus >= 201103L + static_assert(is_integral<_Size>{}, "fill_n must pass integral size"); +#endif + return __fill_n_a1(__first, __n, __value); + } + + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + __fill_n_a(_OutputIterator __first, _Size __n, const _Tp& __value, + std::random_access_iterator_tag) + { +#if __cplusplus >= 201103L + static_assert(is_integral<_Size>{}, "fill_n must pass integral size"); +#endif + if (__n <= 0) + return __first; + + __glibcxx_requires_can_increment(__first, __n); + + std::__fill_a(__first, __first + __n, __value); + return __first + __n; + } + + /** + * @brief Fills the range [first,first+n) with copies of value. + * @ingroup mutating_algorithms + * @param __first An output iterator. + * @param __n The count of copies to perform. + * @param __value A reference-to-const of arbitrary type. + * @return The iterator at first+n. + * + * This function fills a range with copies of the same value. For char + * types filling contiguous areas of memory, this becomes an inline call + * to @c memset or @c wmemset. + * + * If @p __n is negative, the function does nothing. + */ + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 865. More algorithms that throw away information + // DR 426. search_n(), fill_n(), and generate_n() with negative n + template + _GLIBCXX20_CONSTEXPR + inline _OI + fill_n(_OI __first, _Size __n, const _Tp& __value) + { + // concept requirements + __glibcxx_function_requires(_OutputIteratorConcept<_OI, _Tp>) + + return std::__fill_n_a(__first, std::__size_to_integer(__n), __value, + std::__iterator_category(__first)); + } + + template + struct __equal + { + template + _GLIBCXX20_CONSTEXPR + static bool + equal(_II1 __first1, _II1 __last1, _II2 __first2) + { + for (; __first1 != __last1; ++__first1, (void) ++__first2) + if (!(*__first1 == *__first2)) + return false; + return true; + } + }; + + template<> + struct __equal + { + template + _GLIBCXX20_CONSTEXPR + static bool + equal(const _Tp* __first1, const _Tp* __last1, const _Tp* __first2) + { + if (const size_t __len = (__last1 - __first1)) + return !std::__memcmp(__first1, __first2, __len); + return true; + } + }; + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, bool>::__type + __equal_aux1(_GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>, + _II); + + template + bool + __equal_aux1(_GLIBCXX_STD_C::_Deque_iterator<_Tp1, _Ref1, _Ptr1>, + _GLIBCXX_STD_C::_Deque_iterator<_Tp1, _Ref1, _Ptr1>, + _GLIBCXX_STD_C::_Deque_iterator<_Tp2, _Ref2, _Ptr2>); + + template + typename __gnu_cxx::__enable_if< + __is_random_access_iter<_II>::__value, bool>::__type + __equal_aux1(_II, _II, + _GLIBCXX_STD_C::_Deque_iterator<_Tp, _Ref, _Ptr>); + + template + _GLIBCXX20_CONSTEXPR + inline bool + __equal_aux1(_II1 __first1, _II1 __last1, _II2 __first2) + { + typedef typename iterator_traits<_II1>::value_type _ValueType1; + const bool __simple = ((__is_integer<_ValueType1>::__value + || __is_pointer<_ValueType1>::__value) + && __memcmpable<_II1, _II2>::__value); + return std::__equal<__simple>::equal(__first1, __last1, __first2); + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __equal_aux(_II1 __first1, _II1 __last1, _II2 __first2) + { + return std::__equal_aux1(std::__niter_base(__first1), + std::__niter_base(__last1), + std::__niter_base(__first2)); + } + + template + struct __lc_rai + { + template + _GLIBCXX20_CONSTEXPR + static _II1 + __newlast1(_II1, _II1 __last1, _II2, _II2) + { return __last1; } + + template + _GLIBCXX20_CONSTEXPR + static bool + __cnd2(_II __first, _II __last) + { return __first != __last; } + }; + + template<> + struct __lc_rai + { + template + _GLIBCXX20_CONSTEXPR + static _RAI1 + __newlast1(_RAI1 __first1, _RAI1 __last1, + _RAI2 __first2, _RAI2 __last2) + { + const typename iterator_traits<_RAI1>::difference_type + __diff1 = __last1 - __first1; + const typename iterator_traits<_RAI2>::difference_type + __diff2 = __last2 - __first2; + return __diff2 < __diff1 ? __first1 + __diff2 : __last1; + } + + template + static _GLIBCXX20_CONSTEXPR bool + __cnd2(_RAI, _RAI) + { return true; } + }; + + template + _GLIBCXX20_CONSTEXPR + bool + __lexicographical_compare_impl(_II1 __first1, _II1 __last1, + _II2 __first2, _II2 __last2, + _Compare __comp) + { + typedef typename iterator_traits<_II1>::iterator_category _Category1; + typedef typename iterator_traits<_II2>::iterator_category _Category2; + typedef std::__lc_rai<_Category1, _Category2> __rai_type; + + __last1 = __rai_type::__newlast1(__first1, __last1, __first2, __last2); + for (; __first1 != __last1 && __rai_type::__cnd2(__first2, __last2); + ++__first1, (void)++__first2) + { + if (__comp(__first1, __first2)) + return true; + if (__comp(__first2, __first1)) + return false; + } + return __first1 == __last1 && __first2 != __last2; + } + + template + struct __lexicographical_compare + { + template + _GLIBCXX20_CONSTEXPR + static bool + __lc(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2) + { + using __gnu_cxx::__ops::__iter_less_iter; + return std::__lexicographical_compare_impl(__first1, __last1, + __first2, __last2, + __iter_less_iter()); + } + }; + + template<> + struct __lexicographical_compare + { + template + _GLIBCXX20_CONSTEXPR + static bool + __lc(const _Tp* __first1, const _Tp* __last1, + const _Up* __first2, const _Up* __last2) + { + const size_t __len1 = __last1 - __first1; + const size_t __len2 = __last2 - __first2; + if (const size_t __len = std::min(__len1, __len2)) + if (int __result = std::__memcmp(__first1, __first2, __len)) + return __result < 0; + return __len1 < __len2; + } + }; + + template + _GLIBCXX20_CONSTEXPR + inline bool + __lexicographical_compare_aux(_II1 __first1, _II1 __last1, + _II2 __first2, _II2 __last2) + { + typedef typename iterator_traits<_II1>::value_type _ValueType1; + typedef typename iterator_traits<_II2>::value_type _ValueType2; + const bool __simple = + (__is_memcmp_ordered_with<_ValueType1, _ValueType2>::__value + && __is_pointer<_II1>::__value + && __is_pointer<_II2>::__value +#if __cplusplus > 201703L && __cpp_lib_concepts + // For C++20 iterator_traits::value_type is non-volatile + // so __is_byte could be true, but we can't use memcmp with + // volatile data. + && !is_volatile_v>> + && !is_volatile_v>> +#endif + ); + + return std::__lexicographical_compare<__simple>::__lc(__first1, __last1, + __first2, __last2); + } + + template + _GLIBCXX20_CONSTEXPR + _ForwardIterator + __lower_bound(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val, _Compare __comp) + { + typedef typename iterator_traits<_ForwardIterator>::difference_type + _DistanceType; + + _DistanceType __len = std::distance(__first, __last); + + while (__len > 0) + { + _DistanceType __half = __len >> 1; + _ForwardIterator __middle = __first; + std::advance(__middle, __half); + if (__comp(__middle, __val)) + { + __first = __middle; + ++__first; + __len = __len - __half - 1; + } + else + __len = __half; + } + return __first; + } + + /** + * @brief Finds the first position in which @a val could be inserted + * without changing the ordering. + * @param __first An iterator. + * @param __last Another iterator. + * @param __val The search term. + * @return An iterator pointing to the first element not less + * than @a val, or end() if every element is less than + * @a val. + * @ingroup binary_search_algorithms + */ + template + _GLIBCXX20_CONSTEXPR + inline _ForwardIterator + lower_bound(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __val) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanOpConcept< + typename iterator_traits<_ForwardIterator>::value_type, _Tp>) + __glibcxx_requires_partitioned_lower(__first, __last, __val); + + return std::__lower_bound(__first, __last, __val, + __gnu_cxx::__ops::__iter_less_val()); + } + + /// This is a helper function for the sort routines and for random.tcc. + // Precondition: __n > 0. + inline _GLIBCXX_CONSTEXPR int + __lg(int __n) + { return (int)sizeof(int) * __CHAR_BIT__ - 1 - __builtin_clz(__n); } + + inline _GLIBCXX_CONSTEXPR unsigned + __lg(unsigned __n) + { return (int)sizeof(int) * __CHAR_BIT__ - 1 - __builtin_clz(__n); } + + inline _GLIBCXX_CONSTEXPR long + __lg(long __n) + { return (int)sizeof(long) * __CHAR_BIT__ - 1 - __builtin_clzl(__n); } + + inline _GLIBCXX_CONSTEXPR unsigned long + __lg(unsigned long __n) + { return (int)sizeof(long) * __CHAR_BIT__ - 1 - __builtin_clzl(__n); } + + inline _GLIBCXX_CONSTEXPR long long + __lg(long long __n) + { return (int)sizeof(long long) * __CHAR_BIT__ - 1 - __builtin_clzll(__n); } + + inline _GLIBCXX_CONSTEXPR unsigned long long + __lg(unsigned long long __n) + { return (int)sizeof(long long) * __CHAR_BIT__ - 1 - __builtin_clzll(__n); } + +_GLIBCXX_BEGIN_NAMESPACE_ALGO + + /** + * @brief Tests a range for element-wise equality. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @return A boolean true or false. + * + * This compares the elements of two ranges using @c == and returns true or + * false depending on whether all of the corresponding elements of the + * ranges are equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + equal(_II1 __first1, _II1 __last1, _II2 __first2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_II1>) + __glibcxx_function_requires(_InputIteratorConcept<_II2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_II1>::value_type, + typename iterator_traits<_II2>::value_type>) + __glibcxx_requires_can_increment_range(__first1, __last1, __first2); + + return std::__equal_aux(__first1, __last1, __first2); + } + + /** + * @brief Tests a range for element-wise equality. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __binary_pred A binary predicate @link functors + * functor@endlink. + * @return A boolean true or false. + * + * This compares the elements of two ranges using the binary_pred + * parameter, and returns true or + * false depending on whether all of the corresponding elements of the + * ranges are equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + equal(_IIter1 __first1, _IIter1 __last1, + _IIter2 __first2, _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_IIter1>) + __glibcxx_function_requires(_InputIteratorConcept<_IIter2>) + __glibcxx_requires_valid_range(__first1, __last1); + + for (; __first1 != __last1; ++__first1, (void)++__first2) + if (!bool(__binary_pred(*__first1, *__first2))) + return false; + return true; + } + +#if __cplusplus >= 201103L + // 4-iterator version of std::equal for use in C++11. + template + _GLIBCXX20_CONSTEXPR + inline bool + __equal4(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2) + { + using _RATag = random_access_iterator_tag; + using _Cat1 = typename iterator_traits<_II1>::iterator_category; + using _Cat2 = typename iterator_traits<_II2>::iterator_category; + using _RAIters = __and_, is_same<_Cat2, _RATag>>; + if (_RAIters()) + { + auto __d1 = std::distance(__first1, __last1); + auto __d2 = std::distance(__first2, __last2); + if (__d1 != __d2) + return false; + return _GLIBCXX_STD_A::equal(__first1, __last1, __first2); + } + + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + if (!(*__first1 == *__first2)) + return false; + return __first1 == __last1 && __first2 == __last2; + } + + // 4-iterator version of std::equal for use in C++11. + template + _GLIBCXX20_CONSTEXPR + inline bool + __equal4(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2, + _BinaryPredicate __binary_pred) + { + using _RATag = random_access_iterator_tag; + using _Cat1 = typename iterator_traits<_II1>::iterator_category; + using _Cat2 = typename iterator_traits<_II2>::iterator_category; + using _RAIters = __and_, is_same<_Cat2, _RATag>>; + if (_RAIters()) + { + auto __d1 = std::distance(__first1, __last1); + auto __d2 = std::distance(__first2, __last2); + if (__d1 != __d2) + return false; + return _GLIBCXX_STD_A::equal(__first1, __last1, __first2, + __binary_pred); + } + + for (; __first1 != __last1 && __first2 != __last2; + ++__first1, (void)++__first2) + if (!bool(__binary_pred(*__first1, *__first2))) + return false; + return __first1 == __last1 && __first2 == __last2; + } +#endif // C++11 + +#if __cplusplus > 201103L + +#define __cpp_lib_robust_nonmodifying_seq_ops 201304 + + /** + * @brief Tests a range for element-wise equality. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @return A boolean true or false. + * + * This compares the elements of two ranges using @c == and returns true or + * false depending on whether all of the corresponding elements of the + * ranges are equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + equal(_II1 __first1, _II1 __last1, _II2 __first2, _II2 __last2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_II1>) + __glibcxx_function_requires(_InputIteratorConcept<_II2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_II1>::value_type, + typename iterator_traits<_II2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return _GLIBCXX_STD_A::__equal4(__first1, __last1, __first2, __last2); + } + + /** + * @brief Tests a range for element-wise equality. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @param __binary_pred A binary predicate @link functors + * functor@endlink. + * @return A boolean true or false. + * + * This compares the elements of two ranges using the binary_pred + * parameter, and returns true or + * false depending on whether all of the corresponding elements of the + * ranges are equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + equal(_IIter1 __first1, _IIter1 __last1, + _IIter2 __first2, _IIter2 __last2, _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_IIter1>) + __glibcxx_function_requires(_InputIteratorConcept<_IIter2>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return _GLIBCXX_STD_A::__equal4(__first1, __last1, __first2, __last2, + __binary_pred); + } +#endif // C++14 + + /** + * @brief Performs @b dictionary comparison on ranges. + * @ingroup sorting_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @return A boolean true or false. + * + * Returns true if the sequence of elements defined by the range + * [first1,last1) is lexicographically less than the sequence of elements + * defined by the range [first2,last2). Returns false otherwise. + * (Quoted from [25.3.8]/1.) If the iterators are all character pointers, + * then this is an inline call to @c memcmp. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + lexicographical_compare(_II1 __first1, _II1 __last1, + _II2 __first2, _II2 __last2) + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename iterator_traits<_II1>::value_type _ValueType1; + typedef typename iterator_traits<_II2>::value_type _ValueType2; +#endif + __glibcxx_function_requires(_InputIteratorConcept<_II1>) + __glibcxx_function_requires(_InputIteratorConcept<_II2>) + __glibcxx_function_requires(_LessThanOpConcept<_ValueType1, _ValueType2>) + __glibcxx_function_requires(_LessThanOpConcept<_ValueType2, _ValueType1>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__lexicographical_compare_aux(std::__niter_base(__first1), + std::__niter_base(__last1), + std::__niter_base(__first2), + std::__niter_base(__last2)); + } + + /** + * @brief Performs @b dictionary comparison on ranges. + * @ingroup sorting_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @param __comp A @link comparison_functors comparison functor@endlink. + * @return A boolean true or false. + * + * The same as the four-parameter @c lexicographical_compare, but uses the + * comp parameter instead of @c <. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + lexicographical_compare(_II1 __first1, _II1 __last1, + _II2 __first2, _II2 __last2, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_II1>) + __glibcxx_function_requires(_InputIteratorConcept<_II2>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return std::__lexicographical_compare_impl + (__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__comp)); + } + +#if __cpp_lib_three_way_comparison + // Iter points to a contiguous range of unsigned narrow character type + // or std::byte, suitable for comparison by memcmp. + template + concept __is_byte_iter = contiguous_iterator<_Iter> + && __is_memcmp_ordered>::__value; + + // Return a struct with two members, initialized to the smaller of x and y + // (or x if they compare equal) and the result of the comparison x <=> y. + template + constexpr auto + __min_cmp(_Tp __x, _Tp __y) + { + struct _Res { + _Tp _M_min; + decltype(__x <=> __y) _M_cmp; + }; + auto __c = __x <=> __y; + if (__c > 0) + return _Res{__y, __c}; + return _Res{__x, __c}; + } + + /** + * @brief Performs dictionary comparison on ranges. + * @ingroup sorting_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @param __comp A @link comparison_functors comparison functor@endlink. + * @return The comparison category that `__comp(*__first1, *__first2)` + * returns. + */ + template + constexpr auto + lexicographical_compare_three_way(_InputIter1 __first1, + _InputIter1 __last1, + _InputIter2 __first2, + _InputIter2 __last2, + _Comp __comp) + -> decltype(__comp(*__first1, *__first2)) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIter1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIter2>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + +#if __cpp_lib_is_constant_evaluated + using _Cat = decltype(__comp(*__first1, *__first2)); + static_assert(same_as, _Cat>); + + if (!std::is_constant_evaluated()) + if constexpr (same_as<_Comp, __detail::_Synth3way> + || same_as<_Comp, compare_three_way>) + if constexpr (__is_byte_iter<_InputIter1>) + if constexpr (__is_byte_iter<_InputIter2>) + { + const auto [__len, __lencmp] + = std::__min_cmp(__last1 - __first1, __last2 - __first2); + if (__len) + { + const auto __c + = __builtin_memcmp(&*__first1, &*__first2, __len) <=> 0; + if (__c != 0) + return __c; + } + return __lencmp; + } +#endif // is_constant_evaluated + while (__first1 != __last1) + { + if (__first2 == __last2) + return strong_ordering::greater; + if (auto __cmp = __comp(*__first1, *__first2); __cmp != 0) + return __cmp; + ++__first1; + ++__first2; + } + return (__first2 == __last2) <=> true; // See PR 94006 + } + + template + constexpr auto + lexicographical_compare_three_way(_InputIter1 __first1, + _InputIter1 __last1, + _InputIter2 __first2, + _InputIter2 __last2) + { + return std::lexicographical_compare_three_way(__first1, __last1, + __first2, __last2, + compare_three_way{}); + } +#endif // three_way_comparison + + template + _GLIBCXX20_CONSTEXPR + pair<_InputIterator1, _InputIterator2> + __mismatch(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _BinaryPredicate __binary_pred) + { + while (__first1 != __last1 && __binary_pred(__first1, __first2)) + { + ++__first1; + ++__first2; + } + return pair<_InputIterator1, _InputIterator2>(__first1, __first2); + } + + /** + * @brief Finds the places in ranges which don't match. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @return A pair of iterators pointing to the first mismatch. + * + * This compares the elements of two ranges using @c == and returns a pair + * of iterators. The first iterator points into the first range, the + * second iterator points into the second range, and the elements pointed + * to by the iterators are not equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + + return _GLIBCXX_STD_A::__mismatch(__first1, __last1, __first2, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Finds the places in ranges which don't match. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __binary_pred A binary predicate @link functors + * functor@endlink. + * @return A pair of iterators pointing to the first mismatch. + * + * This compares the elements of two ranges using the binary_pred + * parameter, and returns a pair + * of iterators. The first iterator points into the first range, the + * second iterator points into the second range, and the elements pointed + * to by the iterators are not equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_requires_valid_range(__first1, __last1); + + return _GLIBCXX_STD_A::__mismatch(__first1, __last1, __first2, + __gnu_cxx::__ops::__iter_comp_iter(__binary_pred)); + } + +#if __cplusplus > 201103L + + template + _GLIBCXX20_CONSTEXPR + pair<_InputIterator1, _InputIterator2> + __mismatch(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _BinaryPredicate __binary_pred) + { + while (__first1 != __last1 && __first2 != __last2 + && __binary_pred(__first1, __first2)) + { + ++__first1; + ++__first2; + } + return pair<_InputIterator1, _InputIterator2>(__first1, __first2); + } + + /** + * @brief Finds the places in ranges which don't match. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @return A pair of iterators pointing to the first mismatch. + * + * This compares the elements of two ranges using @c == and returns a pair + * of iterators. The first iterator points into the first range, the + * second iterator points into the second range, and the elements pointed + * to by the iterators are not equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_InputIterator1>::value_type, + typename iterator_traits<_InputIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return _GLIBCXX_STD_A::__mismatch(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } + + /** + * @brief Finds the places in ranges which don't match. + * @ingroup non_mutating_algorithms + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @param __binary_pred A binary predicate @link functors + * functor@endlink. + * @return A pair of iterators pointing to the first mismatch. + * + * This compares the elements of two ranges using the binary_pred + * parameter, and returns a pair + * of iterators. The first iterator points into the first range, the + * second iterator points into the second range, and the elements pointed + * to by the iterators are not equal. + */ + template + _GLIBCXX20_CONSTEXPR + inline pair<_InputIterator1, _InputIterator2> + mismatch(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _InputIterator2 __last2, + _BinaryPredicate __binary_pred) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return _GLIBCXX_STD_A::__mismatch(__first1, __last1, __first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__binary_pred)); + } +#endif + +_GLIBCXX_END_NAMESPACE_ALGO + + /// This is an overload used by find algos for the Input Iterator case. + template + _GLIBCXX20_CONSTEXPR + inline _InputIterator + __find_if(_InputIterator __first, _InputIterator __last, + _Predicate __pred, input_iterator_tag) + { + while (__first != __last && !__pred(__first)) + ++__first; + return __first; + } + + /// This is an overload used by find algos for the RAI case. + template + _GLIBCXX20_CONSTEXPR + _RandomAccessIterator + __find_if(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Predicate __pred, random_access_iterator_tag) + { + typename iterator_traits<_RandomAccessIterator>::difference_type + __trip_count = (__last - __first) >> 2; + + for (; __trip_count > 0; --__trip_count) + { + if (__pred(__first)) + return __first; + ++__first; + + if (__pred(__first)) + return __first; + ++__first; + + if (__pred(__first)) + return __first; + ++__first; + + if (__pred(__first)) + return __first; + ++__first; + } + + switch (__last - __first) + { + case 3: + if (__pred(__first)) + return __first; + ++__first; + // FALLTHRU + case 2: + if (__pred(__first)) + return __first; + ++__first; + // FALLTHRU + case 1: + if (__pred(__first)) + return __first; + ++__first; + // FALLTHRU + case 0: + default: + return __last; + } + } + + template + _GLIBCXX20_CONSTEXPR + inline _Iterator + __find_if(_Iterator __first, _Iterator __last, _Predicate __pred) + { + return __find_if(__first, __last, __pred, + std::__iterator_category(__first)); + } + + template + _GLIBCXX20_CONSTEXPR + typename iterator_traits<_InputIterator>::difference_type + __count_if(_InputIterator __first, _InputIterator __last, _Predicate __pred) + { + typename iterator_traits<_InputIterator>::difference_type __n = 0; + for (; __first != __last; ++__first) + if (__pred(__first)) + ++__n; + return __n; + } + +#if __cplusplus >= 201103L + template + _GLIBCXX20_CONSTEXPR + bool + __is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2, _BinaryPredicate __pred) + { + // Efficiently compare identical prefixes: O(N) if sequences + // have the same elements in the same order. + for (; __first1 != __last1; ++__first1, (void)++__first2) + if (!__pred(__first1, __first2)) + break; + + if (__first1 == __last1) + return true; + + // Establish __last2 assuming equal ranges by iterating over the + // rest of the list. + _ForwardIterator2 __last2 = __first2; + std::advance(__last2, std::distance(__first1, __last1)); + for (_ForwardIterator1 __scan = __first1; __scan != __last1; ++__scan) + { + if (__scan != std::__find_if(__first1, __scan, + __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan))) + continue; // We've seen this one before. + + auto __matches + = std::__count_if(__first2, __last2, + __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)); + if (0 == __matches || + std::__count_if(__scan, __last1, + __gnu_cxx::__ops::__iter_comp_iter(__pred, __scan)) + != __matches) + return false; + } + return true; + } + + /** + * @brief Checks whether a permutation of the second sequence is equal + * to the first sequence. + * @ingroup non_mutating_algorithms + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @return true if there exists a permutation of the elements in the range + * [__first2, __first2 + (__last1 - __first1)), beginning with + * ForwardIterator2 begin, such that equal(__first1, __last1, begin) + * returns true; otherwise, returns false. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_permutation(_ForwardIterator1 __first1, _ForwardIterator1 __last1, + _ForwardIterator2 __first2) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator1>) + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator2>) + __glibcxx_function_requires(_EqualOpConcept< + typename iterator_traits<_ForwardIterator1>::value_type, + typename iterator_traits<_ForwardIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + + return std::__is_permutation(__first1, __last1, __first2, + __gnu_cxx::__ops::__iter_equal_to_iter()); + } +#endif // C++11 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_bvector.h b/resources/sources/avr-libstdcpp/include/bits/stl_bvector.h new file mode 100644 index 000000000..f245e52b2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_bvector.h @@ -0,0 +1,1363 @@ +// vector specialization -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1999 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_bvector.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{vector} + */ + +#ifndef _STL_BVECTOR_H +#define _STL_BVECTOR_H 1 + +#if __cplusplus >= 201103L +#include +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + typedef unsigned long _Bit_type; + enum { _S_word_bit = int(__CHAR_BIT__ * sizeof(_Bit_type)) }; + + struct _Bit_reference + { + _Bit_type * _M_p; + _Bit_type _M_mask; + + _Bit_reference(_Bit_type * __x, _Bit_type __y) + : _M_p(__x), _M_mask(__y) { } + + _Bit_reference() _GLIBCXX_NOEXCEPT : _M_p(0), _M_mask(0) { } + +#if __cplusplus >= 201103L + _Bit_reference(const _Bit_reference&) = default; +#endif + + operator bool() const _GLIBCXX_NOEXCEPT + { return !!(*_M_p & _M_mask); } + + _Bit_reference& + operator=(bool __x) _GLIBCXX_NOEXCEPT + { + if (__x) + *_M_p |= _M_mask; + else + *_M_p &= ~_M_mask; + return *this; + } + + _Bit_reference& + operator=(const _Bit_reference& __x) _GLIBCXX_NOEXCEPT + { return *this = bool(__x); } + + bool + operator==(const _Bit_reference& __x) const + { return bool(*this) == bool(__x); } + + bool + operator<(const _Bit_reference& __x) const + { return !bool(*this) && bool(__x); } + + void + flip() _GLIBCXX_NOEXCEPT + { *_M_p ^= _M_mask; } + }; + +#if __cplusplus >= 201103L + inline void + swap(_Bit_reference __x, _Bit_reference __y) noexcept + { + bool __tmp = __x; + __x = __y; + __y = __tmp; + } + + inline void + swap(_Bit_reference __x, bool& __y) noexcept + { + bool __tmp = __x; + __x = __y; + __y = __tmp; + } + + inline void + swap(bool& __x, _Bit_reference __y) noexcept + { + bool __tmp = __x; + __x = __y; + __y = __tmp; + } +#endif + + struct _Bit_iterator_base + : public std::iterator + { + _Bit_type * _M_p; + unsigned int _M_offset; + + _Bit_iterator_base(_Bit_type * __x, unsigned int __y) + : _M_p(__x), _M_offset(__y) { } + + void + _M_bump_up() + { + if (_M_offset++ == int(_S_word_bit) - 1) + { + _M_offset = 0; + ++_M_p; + } + } + + void + _M_bump_down() + { + if (_M_offset-- == 0) + { + _M_offset = int(_S_word_bit) - 1; + --_M_p; + } + } + + void + _M_incr(ptrdiff_t __i) + { + difference_type __n = __i + _M_offset; + _M_p += __n / int(_S_word_bit); + __n = __n % int(_S_word_bit); + if (__n < 0) + { + __n += int(_S_word_bit); + --_M_p; + } + _M_offset = static_cast(__n); + } + + friend _GLIBCXX20_CONSTEXPR bool + operator==(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { return __x._M_p == __y._M_p && __x._M_offset == __y._M_offset; } + +#if __cpp_lib_three_way_comparison + friend constexpr strong_ordering + operator<=>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + noexcept + { + if (const auto __cmp = __x._M_p <=> __y._M_p; __cmp != 0) + return __cmp; + return __x._M_offset <=> __y._M_offset; + } +#else + friend bool + operator<(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { + return __x._M_p < __y._M_p + || (__x._M_p == __y._M_p && __x._M_offset < __y._M_offset); + } + + friend bool + operator!=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { return !(__x == __y); } + + friend bool + operator>(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { return __y < __x; } + + friend bool + operator<=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { return !(__y < __x); } + + friend bool + operator>=(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { return !(__x < __y); } +#endif // three-way comparison + + friend ptrdiff_t + operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y) + { + return (int(_S_word_bit) * (__x._M_p - __y._M_p) + + __x._M_offset - __y._M_offset); + } + }; + + struct _Bit_iterator : public _Bit_iterator_base + { + typedef _Bit_reference reference; +#if __cplusplus > 201703L + typedef void pointer; +#else + typedef _Bit_reference* pointer; +#endif + typedef _Bit_iterator iterator; + + _Bit_iterator() : _Bit_iterator_base(0, 0) { } + + _Bit_iterator(_Bit_type * __x, unsigned int __y) + : _Bit_iterator_base(__x, __y) { } + + iterator + _M_const_cast() const + { return *this; } + + reference + operator*() const + { return reference(_M_p, 1UL << _M_offset); } + + iterator& + operator++() + { + _M_bump_up(); + return *this; + } + + iterator + operator++(int) + { + iterator __tmp = *this; + _M_bump_up(); + return __tmp; + } + + iterator& + operator--() + { + _M_bump_down(); + return *this; + } + + iterator + operator--(int) + { + iterator __tmp = *this; + _M_bump_down(); + return __tmp; + } + + iterator& + operator+=(difference_type __i) + { + _M_incr(__i); + return *this; + } + + iterator& + operator-=(difference_type __i) + { + *this += -__i; + return *this; + } + + reference + operator[](difference_type __i) const + { return *(*this + __i); } + + friend iterator + operator+(const iterator& __x, difference_type __n) + { + iterator __tmp = __x; + __tmp += __n; + return __tmp; + } + + friend iterator + operator+(difference_type __n, const iterator& __x) + { return __x + __n; } + + friend iterator + operator-(const iterator& __x, difference_type __n) + { + iterator __tmp = __x; + __tmp -= __n; + return __tmp; + } + }; + + struct _Bit_const_iterator : public _Bit_iterator_base + { + typedef bool reference; + typedef bool const_reference; +#if __cplusplus > 201703L + typedef void pointer; +#else + typedef const bool* pointer; +#endif + typedef _Bit_const_iterator const_iterator; + + _Bit_const_iterator() : _Bit_iterator_base(0, 0) { } + + _Bit_const_iterator(_Bit_type * __x, unsigned int __y) + : _Bit_iterator_base(__x, __y) { } + + _Bit_const_iterator(const _Bit_iterator& __x) + : _Bit_iterator_base(__x._M_p, __x._M_offset) { } + + _Bit_iterator + _M_const_cast() const + { return _Bit_iterator(_M_p, _M_offset); } + + const_reference + operator*() const + { return _Bit_reference(_M_p, 1UL << _M_offset); } + + const_iterator& + operator++() + { + _M_bump_up(); + return *this; + } + + const_iterator + operator++(int) + { + const_iterator __tmp = *this; + _M_bump_up(); + return __tmp; + } + + const_iterator& + operator--() + { + _M_bump_down(); + return *this; + } + + const_iterator + operator--(int) + { + const_iterator __tmp = *this; + _M_bump_down(); + return __tmp; + } + + const_iterator& + operator+=(difference_type __i) + { + _M_incr(__i); + return *this; + } + + const_iterator& + operator-=(difference_type __i) + { + *this += -__i; + return *this; + } + + const_reference + operator[](difference_type __i) const + { return *(*this + __i); } + + friend const_iterator + operator+(const const_iterator& __x, difference_type __n) + { + const_iterator __tmp = __x; + __tmp += __n; + return __tmp; + } + + friend const_iterator + operator-(const const_iterator& __x, difference_type __n) + { + const_iterator __tmp = __x; + __tmp -= __n; + return __tmp; + } + + friend const_iterator + operator+(difference_type __n, const const_iterator& __x) + { return __x + __n; } + }; + + inline void + __fill_bvector(_Bit_type * __v, + unsigned int __first, unsigned int __last, bool __x) + { + const _Bit_type __fmask = ~0ul << __first; + const _Bit_type __lmask = ~0ul >> (_S_word_bit - __last); + const _Bit_type __mask = __fmask & __lmask; + + if (__x) + *__v |= __mask; + else + *__v &= ~__mask; + } + + inline void + fill(_Bit_iterator __first, _Bit_iterator __last, const bool& __x) + { + if (__first._M_p != __last._M_p) + { + _Bit_type* __first_p = __first._M_p; + if (__first._M_offset != 0) + __fill_bvector(__first_p++, __first._M_offset, _S_word_bit, __x); + + __builtin_memset(__first_p, __x ? ~0 : 0, + (__last._M_p - __first_p) * sizeof(_Bit_type)); + + if (__last._M_offset != 0) + __fill_bvector(__last._M_p, 0, __last._M_offset, __x); + } + else if (__first._M_offset != __last._M_offset) + __fill_bvector(__first._M_p, __first._M_offset, __last._M_offset, __x); + } + + template + struct _Bvector_base + { + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Bit_type>::other _Bit_alloc_type; + typedef typename __gnu_cxx::__alloc_traits<_Bit_alloc_type> + _Bit_alloc_traits; + typedef typename _Bit_alloc_traits::pointer _Bit_pointer; + + struct _Bvector_impl_data + { + _Bit_iterator _M_start; + _Bit_iterator _M_finish; + _Bit_pointer _M_end_of_storage; + + _Bvector_impl_data() _GLIBCXX_NOEXCEPT + : _M_start(), _M_finish(), _M_end_of_storage() + { } + +#if __cplusplus >= 201103L + _Bvector_impl_data(_Bvector_impl_data&& __x) noexcept + : _M_start(__x._M_start), _M_finish(__x._M_finish) + , _M_end_of_storage(__x._M_end_of_storage) + { __x._M_reset(); } + + void + _M_move_data(_Bvector_impl_data&& __x) noexcept + { + this->_M_start = __x._M_start; + this->_M_finish = __x._M_finish; + this->_M_end_of_storage = __x._M_end_of_storage; + __x._M_reset(); + } +#endif + + void + _M_reset() _GLIBCXX_NOEXCEPT + { + _M_start = _M_finish = _Bit_iterator(); + _M_end_of_storage = _Bit_pointer(); + } + }; + + struct _Bvector_impl + : public _Bit_alloc_type, public _Bvector_impl_data + { + public: + _Bvector_impl() _GLIBCXX_NOEXCEPT_IF( + is_nothrow_default_constructible<_Bit_alloc_type>::value) + : _Bit_alloc_type() + { } + + _Bvector_impl(const _Bit_alloc_type& __a) _GLIBCXX_NOEXCEPT + : _Bit_alloc_type(__a) + { } + +#if __cplusplus >= 201103L + _Bvector_impl(_Bvector_impl&&) = default; +#endif + + _Bit_type* + _M_end_addr() const _GLIBCXX_NOEXCEPT + { + if (this->_M_end_of_storage) + return std::__addressof(this->_M_end_of_storage[-1]) + 1; + return 0; + } + }; + + public: + typedef _Alloc allocator_type; + + _Bit_alloc_type& + _M_get_Bit_allocator() _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + const _Bit_alloc_type& + _M_get_Bit_allocator() const _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_get_Bit_allocator()); } + +#if __cplusplus >= 201103L + _Bvector_base() = default; +#else + _Bvector_base() { } +#endif + + _Bvector_base(const allocator_type& __a) + : _M_impl(__a) { } + +#if __cplusplus >= 201103L + _Bvector_base(_Bvector_base&&) = default; +#endif + + ~_Bvector_base() + { this->_M_deallocate(); } + + protected: + _Bvector_impl _M_impl; + + _Bit_pointer + _M_allocate(size_t __n) + { return _Bit_alloc_traits::allocate(_M_impl, _S_nword(__n)); } + + void + _M_deallocate() + { + if (_M_impl._M_start._M_p) + { + const size_t __n = _M_impl._M_end_addr() - _M_impl._M_start._M_p; + _Bit_alloc_traits::deallocate(_M_impl, + _M_impl._M_end_of_storage - __n, + __n); + _M_impl._M_reset(); + } + } + +#if __cplusplus >= 201103L + void + _M_move_data(_Bvector_base&& __x) noexcept + { _M_impl._M_move_data(std::move(__x._M_impl)); } +#endif + + static size_t + _S_nword(size_t __n) + { return (__n + int(_S_word_bit) - 1) / int(_S_word_bit); } + }; + +_GLIBCXX_END_NAMESPACE_CONTAINER +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +// Declare a partial specialization of vector. +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /** + * @brief A specialization of vector for booleans which offers fixed time + * access to individual elements in any order. + * + * @ingroup sequences + * + * @tparam _Alloc Allocator type. + * + * Note that vector does not actually meet the requirements for being + * a container. This is because the reference and pointer types are not + * really references and pointers to bool. See DR96 for details. @see + * vector for function documentation. + * + * In some terminology a %vector can be described as a dynamic + * C-style array, it offers fast and efficient access to individual + * elements in any order and saves the user from worrying about + * memory and size allocation. Subscripting ( @c [] ) access is + * also provided as with C-style arrays. + */ + template + class vector : protected _Bvector_base<_Alloc> + { + typedef _Bvector_base<_Alloc> _Base; + typedef typename _Base::_Bit_pointer _Bit_pointer; + typedef typename _Base::_Bit_alloc_traits _Bit_alloc_traits; + +#if __cplusplus >= 201103L + friend struct std::hash; +#endif + + public: + typedef bool value_type; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Bit_reference reference; + typedef bool const_reference; + typedef _Bit_reference* pointer; + typedef const bool* const_pointer; + typedef _Bit_iterator iterator; + typedef _Bit_const_iterator const_iterator; + typedef std::reverse_iterator const_reverse_iterator; + typedef std::reverse_iterator reverse_iterator; + typedef _Alloc allocator_type; + + allocator_type + get_allocator() const + { return _Base::get_allocator(); } + + protected: + using _Base::_M_allocate; + using _Base::_M_deallocate; + using _Base::_S_nword; + using _Base::_M_get_Bit_allocator; + + public: +#if __cplusplus >= 201103L + vector() = default; +#else + vector() { } +#endif + + explicit + vector(const allocator_type& __a) + : _Base(__a) { } + +#if __cplusplus >= 201103L + explicit + vector(size_type __n, const allocator_type& __a = allocator_type()) + : vector(__n, false, __a) + { } + + vector(size_type __n, const bool& __value, + const allocator_type& __a = allocator_type()) +#else + explicit + vector(size_type __n, const bool& __value = bool(), + const allocator_type& __a = allocator_type()) +#endif + : _Base(__a) + { + _M_initialize(__n); + _M_initialize_value(__value); + } + + vector(const vector& __x) + : _Base(_Bit_alloc_traits::_S_select_on_copy(__x._M_get_Bit_allocator())) + { + _M_initialize(__x.size()); + _M_copy_aligned(__x.begin(), __x.end(), this->_M_impl._M_start); + } + +#if __cplusplus >= 201103L + vector(vector&&) = default; + + vector(vector&& __x, const allocator_type& __a) + noexcept(_Bit_alloc_traits::_S_always_equal()) + : _Base(__a) + { + if (__x.get_allocator() == __a) + this->_M_move_data(std::move(__x)); + else + { + _M_initialize(__x.size()); + _M_copy_aligned(__x.begin(), __x.end(), begin()); + __x.clear(); + } + } + + vector(const vector& __x, const allocator_type& __a) + : _Base(__a) + { + _M_initialize(__x.size()); + _M_copy_aligned(__x.begin(), __x.end(), this->_M_impl._M_start); + } + + vector(initializer_list __l, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + _M_initialize_range(__l.begin(), __l.end(), + random_access_iterator_tag()); + } +#endif + +#if __cplusplus >= 201103L + template> + vector(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { _M_initialize_dispatch(__first, __last, __false_type()); } +#else + template + vector(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_initialize_dispatch(__first, __last, _Integral()); + } +#endif + + ~vector() _GLIBCXX_NOEXCEPT { } + + vector& + operator=(const vector& __x) + { + if (&__x == this) + return *this; +#if __cplusplus >= 201103L + if (_Bit_alloc_traits::_S_propagate_on_copy_assign()) + { + if (this->_M_get_Bit_allocator() != __x._M_get_Bit_allocator()) + { + this->_M_deallocate(); + std::__alloc_on_copy(_M_get_Bit_allocator(), + __x._M_get_Bit_allocator()); + _M_initialize(__x.size()); + } + else + std::__alloc_on_copy(_M_get_Bit_allocator(), + __x._M_get_Bit_allocator()); + } +#endif + if (__x.size() > capacity()) + { + this->_M_deallocate(); + _M_initialize(__x.size()); + } + this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(), + begin()); + return *this; + } + +#if __cplusplus >= 201103L + vector& + operator=(vector&& __x) noexcept(_Bit_alloc_traits::_S_nothrow_move()) + { + if (_Bit_alloc_traits::_S_propagate_on_move_assign() + || this->_M_get_Bit_allocator() == __x._M_get_Bit_allocator()) + { + this->_M_deallocate(); + this->_M_move_data(std::move(__x)); + std::__alloc_on_move(_M_get_Bit_allocator(), + __x._M_get_Bit_allocator()); + } + else + { + if (__x.size() > capacity()) + { + this->_M_deallocate(); + _M_initialize(__x.size()); + } + this->_M_impl._M_finish = _M_copy_aligned(__x.begin(), __x.end(), + begin()); + __x.clear(); + } + return *this; + } + + vector& + operator=(initializer_list __l) + { + this->assign (__l.begin(), __l.end()); + return *this; + } +#endif + + // assign(), a generalized assignment member function. Two + // versions: one that takes a count, and one that takes a range. + // The range version is a member template, so we dispatch on whether + // or not the type is an integer. + void + assign(size_type __n, const bool& __x) + { _M_fill_assign(__n, __x); } + +#if __cplusplus >= 201103L + template> + void + assign(_InputIterator __first, _InputIterator __last) + { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } +#else + template + void + assign(_InputIterator __first, _InputIterator __last) + { + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_assign_dispatch(__first, __last, _Integral()); + } +#endif + +#if __cplusplus >= 201103L + void + assign(initializer_list __l) + { _M_assign_aux(__l.begin(), __l.end(), random_access_iterator_tag()); } +#endif + + iterator + begin() _GLIBCXX_NOEXCEPT + { return iterator(this->_M_impl._M_start._M_p, 0); } + + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return const_iterator(this->_M_impl._M_start._M_p, 0); } + + iterator + end() _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_finish; } + + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_finish; } + + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return reverse_iterator(end()); } + + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(end()); } + + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return reverse_iterator(begin()); } + + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(begin()); } + +#if __cplusplus >= 201103L + const_iterator + cbegin() const noexcept + { return const_iterator(this->_M_impl._M_start._M_p, 0); } + + const_iterator + cend() const noexcept + { return this->_M_impl._M_finish; } + + const_reverse_iterator + crbegin() const noexcept + { return const_reverse_iterator(end()); } + + const_reverse_iterator + crend() const noexcept + { return const_reverse_iterator(begin()); } +#endif + + size_type + size() const _GLIBCXX_NOEXCEPT + { return size_type(end() - begin()); } + + size_type + max_size() const _GLIBCXX_NOEXCEPT + { + const size_type __isize = + __gnu_cxx::__numeric_traits::__max + - int(_S_word_bit) + 1; + const size_type __asize + = _Bit_alloc_traits::max_size(_M_get_Bit_allocator()); + return (__asize <= __isize / int(_S_word_bit) + ? __asize * int(_S_word_bit) : __isize); + } + + size_type + capacity() const _GLIBCXX_NOEXCEPT + { return size_type(const_iterator(this->_M_impl._M_end_addr(), 0) + - begin()); } + + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return begin() == end(); } + + reference + operator[](size_type __n) + { + return *iterator(this->_M_impl._M_start._M_p + + __n / int(_S_word_bit), __n % int(_S_word_bit)); + } + + const_reference + operator[](size_type __n) const + { + return *const_iterator(this->_M_impl._M_start._M_p + + __n / int(_S_word_bit), __n % int(_S_word_bit)); + } + + protected: + void + _M_range_check(size_type __n) const + { + if (__n >= this->size()) + __throw_out_of_range_fmt(__N("vector::_M_range_check: __n " + "(which is %zu) >= this->size() " + "(which is %zu)"), + __n, this->size()); + } + + public: + reference + at(size_type __n) + { _M_range_check(__n); return (*this)[__n]; } + + const_reference + at(size_type __n) const + { _M_range_check(__n); return (*this)[__n]; } + + void + reserve(size_type __n) + { + if (__n > max_size()) + __throw_length_error(__N("vector::reserve")); + if (capacity() < __n) + _M_reallocate(__n); + } + + reference + front() + { return *begin(); } + + const_reference + front() const + { return *begin(); } + + reference + back() + { return *(end() - 1); } + + const_reference + back() const + { return *(end() - 1); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 464. Suggestion for new member functions in standard containers. + // N.B. DR 464 says nothing about vector but we need something + // here due to the way we are implementing DR 464 in the debug-mode + // vector class. + void + data() _GLIBCXX_NOEXCEPT { } + + void + push_back(bool __x) + { + if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr()) + *this->_M_impl._M_finish++ = __x; + else + _M_insert_aux(end(), __x); + } + + void + swap(vector& __x) _GLIBCXX_NOEXCEPT + { + std::swap(this->_M_impl._M_start, __x._M_impl._M_start); + std::swap(this->_M_impl._M_finish, __x._M_impl._M_finish); + std::swap(this->_M_impl._M_end_of_storage, + __x._M_impl._M_end_of_storage); + _Bit_alloc_traits::_S_on_swap(_M_get_Bit_allocator(), + __x._M_get_Bit_allocator()); + } + + // [23.2.5]/1, third-to-last entry in synopsis listing + static void + swap(reference __x, reference __y) _GLIBCXX_NOEXCEPT + { + bool __tmp = __x; + __x = __y; + __y = __tmp; + } + + iterator +#if __cplusplus >= 201103L + insert(const_iterator __position, const bool& __x = bool()) +#else + insert(iterator __position, const bool& __x = bool()) +#endif + { + const difference_type __n = __position - begin(); + if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr() + && __position == end()) + *this->_M_impl._M_finish++ = __x; + else + _M_insert_aux(__position._M_const_cast(), __x); + return begin() + __n; + } + +#if __cplusplus >= 201103L + template> + iterator + insert(const_iterator __position, + _InputIterator __first, _InputIterator __last) + { + difference_type __offset = __position - cbegin(); + _M_insert_dispatch(__position._M_const_cast(), + __first, __last, __false_type()); + return begin() + __offset; + } +#else + template + void + insert(iterator __position, + _InputIterator __first, _InputIterator __last) + { + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_insert_dispatch(__position, __first, __last, _Integral()); + } +#endif + +#if __cplusplus >= 201103L + iterator + insert(const_iterator __position, size_type __n, const bool& __x) + { + difference_type __offset = __position - cbegin(); + _M_fill_insert(__position._M_const_cast(), __n, __x); + return begin() + __offset; + } +#else + void + insert(iterator __position, size_type __n, const bool& __x) + { _M_fill_insert(__position, __n, __x); } +#endif + +#if __cplusplus >= 201103L + iterator + insert(const_iterator __p, initializer_list __l) + { return this->insert(__p, __l.begin(), __l.end()); } +#endif + + void + pop_back() + { --this->_M_impl._M_finish; } + + iterator +#if __cplusplus >= 201103L + erase(const_iterator __position) +#else + erase(iterator __position) +#endif + { return _M_erase(__position._M_const_cast()); } + + iterator +#if __cplusplus >= 201103L + erase(const_iterator __first, const_iterator __last) +#else + erase(iterator __first, iterator __last) +#endif + { return _M_erase(__first._M_const_cast(), __last._M_const_cast()); } + + void + resize(size_type __new_size, bool __x = bool()) + { + if (__new_size < size()) + _M_erase_at_end(begin() + difference_type(__new_size)); + else + insert(end(), __new_size - size(), __x); + } + +#if __cplusplus >= 201103L + void + shrink_to_fit() + { _M_shrink_to_fit(); } +#endif + + void + flip() _GLIBCXX_NOEXCEPT + { + _Bit_type * const __end = this->_M_impl._M_end_addr(); + for (_Bit_type * __p = this->_M_impl._M_start._M_p; __p != __end; ++__p) + *__p = ~*__p; + } + + void + clear() _GLIBCXX_NOEXCEPT + { _M_erase_at_end(begin()); } + +#if __cplusplus >= 201103L + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_back(_Args&&... __args) + { + push_back(bool(__args...)); +#if __cplusplus > 201402L + return back(); +#endif + } + + template + iterator + emplace(const_iterator __pos, _Args&&... __args) + { return insert(__pos, bool(__args...)); } +#endif + + protected: + // Precondition: __first._M_offset == 0 && __result._M_offset == 0. + iterator + _M_copy_aligned(const_iterator __first, const_iterator __last, + iterator __result) + { + _Bit_type* __q = std::copy(__first._M_p, __last._M_p, __result._M_p); + return std::copy(const_iterator(__last._M_p, 0), __last, + iterator(__q, 0)); + } + + void + _M_initialize(size_type __n) + { + if (__n) + { + _Bit_pointer __q = this->_M_allocate(__n); + this->_M_impl._M_end_of_storage = __q + _S_nword(__n); + this->_M_impl._M_start = iterator(std::__addressof(*__q), 0); + } + else + { + this->_M_impl._M_end_of_storage = _Bit_pointer(); + this->_M_impl._M_start = iterator(0, 0); + } + this->_M_impl._M_finish = this->_M_impl._M_start + difference_type(__n); + + } + + void + _M_initialize_value(bool __x) + { + if (_Bit_type* __p = this->_M_impl._M_start._M_p) + __builtin_memset(__p, __x ? ~0 : 0, + (this->_M_impl._M_end_addr() - __p) + * sizeof(_Bit_type)); + } + + void + _M_reallocate(size_type __n); + +#if __cplusplus >= 201103L + bool + _M_shrink_to_fit(); +#endif + + // Check whether it's an integral type. If so, it's not an iterator. + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type) + { + _M_initialize(static_cast(__n)); + _M_initialize_value(__x); + } + + template + void + _M_initialize_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { _M_initialize_range(__first, __last, + std::__iterator_category(__first)); } + + template + void + _M_initialize_range(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + for (; __first != __last; ++__first) + push_back(*__first); + } + + template + void + _M_initialize_range(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __n = std::distance(__first, __last); + _M_initialize(__n); + std::copy(__first, __last, this->_M_impl._M_start); + } + +#if __cplusplus < 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_assign_dispatch(_Integer __n, _Integer __val, __true_type) + { _M_fill_assign(__n, __val); } + + template + void + _M_assign_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } +#endif + + void + _M_fill_assign(size_t __n, bool __x) + { + if (__n > size()) + { + _M_initialize_value(__x); + insert(end(), __n - size(), __x); + } + else + { + _M_erase_at_end(begin() + __n); + _M_initialize_value(__x); + } + } + + template + void + _M_assign_aux(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + iterator __cur = begin(); + for (; __first != __last && __cur != end(); ++__cur, (void)++__first) + *__cur = *__first; + if (__first == __last) + _M_erase_at_end(__cur); + else + insert(end(), __first, __last); + } + + template + void + _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __len = std::distance(__first, __last); + if (__len < size()) + _M_erase_at_end(std::copy(__first, __last, begin())); + else + { + _ForwardIterator __mid = __first; + std::advance(__mid, size()); + std::copy(__first, __mid, begin()); + insert(end(), __mid, __last); + } + } + + // Check whether it's an integral type. If so, it's not an iterator. + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x, + __true_type) + { _M_fill_insert(__pos, __n, __x); } + + template + void + _M_insert_dispatch(iterator __pos, + _InputIterator __first, _InputIterator __last, + __false_type) + { _M_insert_range(__pos, __first, __last, + std::__iterator_category(__first)); } + + void + _M_fill_insert(iterator __position, size_type __n, bool __x); + + template + void + _M_insert_range(iterator __pos, _InputIterator __first, + _InputIterator __last, std::input_iterator_tag) + { + for (; __first != __last; ++__first) + { + __pos = insert(__pos, *__first); + ++__pos; + } + } + + template + void + _M_insert_range(iterator __position, _ForwardIterator __first, + _ForwardIterator __last, std::forward_iterator_tag); + + void + _M_insert_aux(iterator __position, bool __x); + + size_type + _M_check_len(size_type __n, const char* __s) const + { + if (max_size() - size() < __n) + __throw_length_error(__N(__s)); + + const size_type __len = size() + std::max(size(), __n); + return (__len < size() || __len > max_size()) ? max_size() : __len; + } + + void + _M_erase_at_end(iterator __pos) + { this->_M_impl._M_finish = __pos; } + + iterator + _M_erase(iterator __pos); + + iterator + _M_erase(iterator __first, iterator __last); + }; + +_GLIBCXX_END_NAMESPACE_CONTAINER +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#if __cplusplus >= 201103L + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // DR 1182. + /// std::hash specialization for vector. + template + struct hash<_GLIBCXX_STD_C::vector> + : public __hash_base> + { + size_t + operator()(const _GLIBCXX_STD_C::vector&) const noexcept; + }; + +_GLIBCXX_END_NAMESPACE_VERSION +}// namespace std + +#endif // C++11 + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_construct.h b/resources/sources/avr-libstdcpp/include/bits/stl_construct.h new file mode 100644 index 000000000..72a7cb471 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_construct.h @@ -0,0 +1,256 @@ +// nonstandard construct and destroy functions -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_construct.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _STL_CONSTRUCT_H +#define _STL_CONSTRUCT_H 1 + +#include +#include +#include // for iterator_traits +#include // for advance + +/* This file provides the C++17 functions std::destroy_at, std::destroy, and + * std::destroy_n, and the C++20 function std::construct_at. + * It also provides std::_Construct, std::_Destroy,and std::_Destroy_n functions + * which are defined in all standard modes and so can be used in C++98-14 code. + * The _Destroy functions will dispatch to destroy_at during constant + * evaluation, because calls to that function are intercepted by the compiler + * to allow use in constant expressions. + */ + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus >= 201703L + template + _GLIBCXX20_CONSTEXPR inline void + destroy_at(_Tp* __location) + { + if constexpr (__cplusplus > 201703L && is_array_v<_Tp>) + { + for (auto& __x : *__location) + std::destroy_at(std::__addressof(__x)); + } + else + __location->~_Tp(); + } + +#if __cplusplus > 201703L + template + constexpr auto + construct_at(_Tp* __location, _Args&&... __args) + noexcept(noexcept(::new((void*)0) _Tp(std::declval<_Args>()...))) + -> decltype(::new((void*)0) _Tp(std::declval<_Args>()...)) + { return ::new((void*)__location) _Tp(std::forward<_Args>(__args)...); } +#endif // C++20 +#endif// C++17 + + /** + * Constructs an object in existing memory by invoking an allocated + * object's constructor with an initializer. + */ +#if __cplusplus >= 201103L + template + inline void + _Construct(_Tp* __p, _Args&&... __args) + { ::new(static_cast(__p)) _Tp(std::forward<_Args>(__args)...); } +#else + template + inline void + _Construct(_T1* __p, const _T2& __value) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 402. wrong new expression in [some_]allocator::construct + ::new(static_cast(__p)) _T1(__value); + } +#endif + + template + inline void + _Construct_novalue(_T1* __p) + { ::new(static_cast(__p)) _T1; } + + template + _GLIBCXX20_CONSTEXPR void + _Destroy(_ForwardIterator __first, _ForwardIterator __last); + + /** + * Destroy the object pointed to by a pointer type. + */ + template + _GLIBCXX14_CONSTEXPR inline void + _Destroy(_Tp* __pointer) + { +#if __cplusplus > 201703L + std::destroy_at(__pointer); +#else + __pointer->~_Tp(); +#endif + } + + template + struct _Destroy_aux + { + template + static _GLIBCXX20_CONSTEXPR void + __destroy(_ForwardIterator __first, _ForwardIterator __last) + { + for (; __first != __last; ++__first) + std::_Destroy(std::__addressof(*__first)); + } + }; + + template<> + struct _Destroy_aux + { + template + static void + __destroy(_ForwardIterator, _ForwardIterator) { } + }; + + /** + * Destroy a range of objects. If the value_type of the object has + * a trivial destructor, the compiler should optimize all of this + * away, otherwise the objects' destructors must be invoked. + */ + template + _GLIBCXX20_CONSTEXPR inline void + _Destroy(_ForwardIterator __first, _ForwardIterator __last) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _Value_type; +#if __cplusplus >= 201103L + // A deleted destructor is trivial, this ensures we reject such types: + static_assert(is_destructible<_Value_type>::value, + "value type is destructible"); +#endif +#if __cplusplus > 201703L && defined __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return _Destroy_aux::__destroy(__first, __last); +#endif + std::_Destroy_aux<__has_trivial_destructor(_Value_type)>:: + __destroy(__first, __last); + } + + template + struct _Destroy_n_aux + { + template + static _GLIBCXX20_CONSTEXPR _ForwardIterator + __destroy_n(_ForwardIterator __first, _Size __count) + { + for (; __count > 0; (void)++__first, --__count) + std::_Destroy(std::__addressof(*__first)); + return __first; + } + }; + + template<> + struct _Destroy_n_aux + { + template + static _ForwardIterator + __destroy_n(_ForwardIterator __first, _Size __count) + { + std::advance(__first, __count); + return __first; + } + }; + + /** + * Destroy a range of objects. If the value_type of the object has + * a trivial destructor, the compiler should optimize all of this + * away, otherwise the objects' destructors must be invoked. + */ + template + _GLIBCXX20_CONSTEXPR inline _ForwardIterator + _Destroy_n(_ForwardIterator __first, _Size __count) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _Value_type; +#if __cplusplus >= 201103L + // A deleted destructor is trivial, this ensures we reject such types: + static_assert(is_destructible<_Value_type>::value, + "value type is destructible"); +#endif +#if __cplusplus > 201703L && defined __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + return _Destroy_n_aux::__destroy_n(__first, __count); +#endif + return std::_Destroy_n_aux<__has_trivial_destructor(_Value_type)>:: + __destroy_n(__first, __count); + } + +#if __cplusplus >= 201703L + template + _GLIBCXX20_CONSTEXPR inline void + destroy(_ForwardIterator __first, _ForwardIterator __last) + { + std::_Destroy(__first, __last); + } + + template + _GLIBCXX20_CONSTEXPR inline _ForwardIterator + destroy_n(_ForwardIterator __first, _Size __count) + { + return std::_Destroy_n(__first, __count); + } +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_CONSTRUCT_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_deque.h b/resources/sources/avr-libstdcpp/include/bits/stl_deque.h new file mode 100644 index 000000000..3959dd789 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_deque.h @@ -0,0 +1,2330 @@ +// Deque implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_deque.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{deque} + */ + +#ifndef _STL_DEQUE_H +#define _STL_DEQUE_H 1 + +#include +#include +#include +#if __cplusplus >= 201103L +#include +#include // for __is_bitwise_relocatable +#endif +#if __cplusplus > 201703L +# include +#endif + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /** + * @brief This function controls the size of memory nodes. + * @param __size The size of an element. + * @return The number (not byte size) of elements per node. + * + * This function started off as a compiler kludge from SGI, but + * seems to be a useful wrapper around a repeated constant + * expression. The @b 512 is tunable (and no other code needs to + * change), but no investigation has been done since inheriting the + * SGI code. Touch _GLIBCXX_DEQUE_BUF_SIZE only if you know what + * you are doing, however: changing it breaks the binary + * compatibility!! + */ + +#ifndef _GLIBCXX_DEQUE_BUF_SIZE +#define _GLIBCXX_DEQUE_BUF_SIZE 512 +#endif + + _GLIBCXX_CONSTEXPR inline size_t + __deque_buf_size(size_t __size) + { return (__size < _GLIBCXX_DEQUE_BUF_SIZE + ? size_t(_GLIBCXX_DEQUE_BUF_SIZE / __size) : size_t(1)); } + + + /** + * @brief A deque::iterator. + * + * Quite a bit of intelligence here. Much of the functionality of + * deque is actually passed off to this class. A deque holds two + * of these internally, marking its valid range. Access to + * elements is done as offsets of either of those two, relying on + * operator overloading in this class. + * + * All the functions are op overloads except for _M_set_node. + */ + template + struct _Deque_iterator + { +#if __cplusplus < 201103L + typedef _Deque_iterator<_Tp, _Tp&, _Tp*> iterator; + typedef _Deque_iterator<_Tp, const _Tp&, const _Tp*> const_iterator; + typedef _Tp* _Elt_pointer; + typedef _Tp** _Map_pointer; +#else + private: + template + using __iter = _Deque_iterator<_Tp, _CvTp&, __ptr_rebind<_Ptr, _CvTp>>; + public: + typedef __iter<_Tp> iterator; + typedef __iter const_iterator; + typedef __ptr_rebind<_Ptr, _Tp> _Elt_pointer; + typedef __ptr_rebind<_Ptr, _Elt_pointer> _Map_pointer; +#endif + + static size_t _S_buffer_size() _GLIBCXX_NOEXCEPT + { return __deque_buf_size(sizeof(_Tp)); } + + typedef std::random_access_iterator_tag iterator_category; + typedef _Tp value_type; + typedef _Ptr pointer; + typedef _Ref reference; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Deque_iterator _Self; + + _Elt_pointer _M_cur; + _Elt_pointer _M_first; + _Elt_pointer _M_last; + _Map_pointer _M_node; + + _Deque_iterator(_Elt_pointer __x, _Map_pointer __y) _GLIBCXX_NOEXCEPT + : _M_cur(__x), _M_first(*__y), + _M_last(*__y + _S_buffer_size()), _M_node(__y) { } + + _Deque_iterator() _GLIBCXX_NOEXCEPT + : _M_cur(), _M_first(), _M_last(), _M_node() { } + +#if __cplusplus < 201103L + // Conversion from iterator to const_iterator. + _Deque_iterator(const iterator& __x) _GLIBCXX_NOEXCEPT + : _M_cur(__x._M_cur), _M_first(__x._M_first), + _M_last(__x._M_last), _M_node(__x._M_node) { } +#else + // Conversion from iterator to const_iterator. + template, + is_same<_Iter, iterator>>> + _Deque_iterator(const _Iter& __x) noexcept + : _M_cur(__x._M_cur), _M_first(__x._M_first), + _M_last(__x._M_last), _M_node(__x._M_node) { } + + _Deque_iterator(const _Deque_iterator& __x) noexcept + : _M_cur(__x._M_cur), _M_first(__x._M_first), + _M_last(__x._M_last), _M_node(__x._M_node) { } + + _Deque_iterator& operator=(const _Deque_iterator&) = default; +#endif + + iterator + _M_const_cast() const _GLIBCXX_NOEXCEPT + { return iterator(_M_cur, _M_node); } + + reference + operator*() const _GLIBCXX_NOEXCEPT + { return *_M_cur; } + + pointer + operator->() const _GLIBCXX_NOEXCEPT + { return _M_cur; } + + _Self& + operator++() _GLIBCXX_NOEXCEPT + { + ++_M_cur; + if (_M_cur == _M_last) + { + _M_set_node(_M_node + 1); + _M_cur = _M_first; + } + return *this; + } + + _Self + operator++(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + ++*this; + return __tmp; + } + + _Self& + operator--() _GLIBCXX_NOEXCEPT + { + if (_M_cur == _M_first) + { + _M_set_node(_M_node - 1); + _M_cur = _M_last; + } + --_M_cur; + return *this; + } + + _Self + operator--(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + --*this; + return __tmp; + } + + _Self& + operator+=(difference_type __n) _GLIBCXX_NOEXCEPT + { + const difference_type __offset = __n + (_M_cur - _M_first); + if (__offset >= 0 && __offset < difference_type(_S_buffer_size())) + _M_cur += __n; + else + { + const difference_type __node_offset = + __offset > 0 ? __offset / difference_type(_S_buffer_size()) + : -difference_type((-__offset - 1) + / _S_buffer_size()) - 1; + _M_set_node(_M_node + __node_offset); + _M_cur = _M_first + (__offset - __node_offset + * difference_type(_S_buffer_size())); + } + return *this; + } + + _Self& + operator-=(difference_type __n) _GLIBCXX_NOEXCEPT + { return *this += -__n; } + + reference + operator[](difference_type __n) const _GLIBCXX_NOEXCEPT + { return *(*this + __n); } + + /** + * Prepares to traverse new_node. Sets everything except + * _M_cur, which should therefore be set by the caller + * immediately afterwards, based on _M_first and _M_last. + */ + void + _M_set_node(_Map_pointer __new_node) _GLIBCXX_NOEXCEPT + { + _M_node = __new_node; + _M_first = *__new_node; + _M_last = _M_first + difference_type(_S_buffer_size()); + } + + friend bool + operator==(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_cur == __y._M_cur; } + + // Note: we also provide overloads whose operands are of the same type in + // order to avoid ambiguous overload resolution when std::rel_ops + // operators are in scope (for additional details, see libstdc++/3628) + template + friend bool + operator==(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) + _GLIBCXX_NOEXCEPT + { return __x._M_cur == __y._M_cur; } + +#if __cpp_lib_three_way_comparison + friend strong_ordering + operator<=>(const _Self& __x, const _Self& __y) noexcept + { + if (const auto __cmp = __x._M_node <=> __y._M_node; __cmp != 0) + return __cmp; + return __x._M_cur <=> __y._M_cur; + } +#else + friend bool + operator!=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return !(__x == __y); } + + template + friend bool + operator!=(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) + _GLIBCXX_NOEXCEPT + { return !(__x == __y); } + + friend bool + operator<(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { + return (__x._M_node == __y._M_node) + ? (__x._M_cur < __y._M_cur) : (__x._M_node < __y._M_node); + } + + template + friend bool + operator<(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) + _GLIBCXX_NOEXCEPT + { + return (__x._M_node == __y._M_node) + ? (__x._M_cur < __y._M_cur) : (__x._M_node < __y._M_node); + } + + friend bool + operator>(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __y < __x; } + + template + friend bool + operator>(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) + _GLIBCXX_NOEXCEPT + { return __y < __x; } + + friend bool + operator<=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return !(__y < __x); } + + template + friend bool + operator<=(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) + _GLIBCXX_NOEXCEPT + { return !(__y < __x); } + + friend bool + operator>=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return !(__x < __y); } + + template + friend bool + operator>=(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) + _GLIBCXX_NOEXCEPT + { return !(__x < __y); } +#endif // three-way comparison + + friend difference_type + operator-(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { + return difference_type(_S_buffer_size()) + * (__x._M_node - __y._M_node - 1) + (__x._M_cur - __x._M_first) + + (__y._M_last - __y._M_cur); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // According to the resolution of DR179 not only the various comparison + // operators but also operator- must accept mixed iterator/const_iterator + // parameters. + template + friend difference_type + operator-(const _Self& __x, + const _Deque_iterator<_Tp, _RefR, _PtrR>& __y) _GLIBCXX_NOEXCEPT + { + return difference_type(_S_buffer_size()) + * (__x._M_node - __y._M_node - 1) + (__x._M_cur - __x._M_first) + + (__y._M_last - __y._M_cur); + } + + friend _Self + operator+(const _Self& __x, difference_type __n) _GLIBCXX_NOEXCEPT + { + _Self __tmp = __x; + __tmp += __n; + return __tmp; + } + + friend _Self + operator-(const _Self& __x, difference_type __n) _GLIBCXX_NOEXCEPT + { + _Self __tmp = __x; + __tmp -= __n; + return __tmp; + } + + friend _Self + operator+(difference_type __n, const _Self& __x) _GLIBCXX_NOEXCEPT + { return __x + __n; } + }; + + /** + * Deque base class. This class provides the unified face for %deque's + * allocation. This class's constructor and destructor allocate and + * deallocate (but do not initialize) storage. This makes %exception + * safety easier. + * + * Nothing in this class ever constructs or destroys an actual Tp element. + * (Deque handles that itself.) Only/All memory management is performed + * here. + */ + template + class _Deque_base + { + protected: + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Tp>::other _Tp_alloc_type; + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Alloc_traits; + +#if __cplusplus < 201103L + typedef _Tp* _Ptr; + typedef const _Tp* _Ptr_const; +#else + typedef typename _Alloc_traits::pointer _Ptr; + typedef typename _Alloc_traits::const_pointer _Ptr_const; +#endif + + typedef typename _Alloc_traits::template rebind<_Ptr>::other + _Map_alloc_type; + typedef __gnu_cxx::__alloc_traits<_Map_alloc_type> _Map_alloc_traits; + + typedef _Alloc allocator_type; + + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_get_Tp_allocator()); } + + typedef _Deque_iterator<_Tp, _Tp&, _Ptr> iterator; + typedef _Deque_iterator<_Tp, const _Tp&, _Ptr_const> const_iterator; + + _Deque_base() + : _M_impl() + { _M_initialize_map(0); } + + _Deque_base(size_t __num_elements) + : _M_impl() + { _M_initialize_map(__num_elements); } + + _Deque_base(const allocator_type& __a, size_t __num_elements) + : _M_impl(__a) + { _M_initialize_map(__num_elements); } + + _Deque_base(const allocator_type& __a) + : _M_impl(__a) + { /* Caller must initialize map. */ } + +#if __cplusplus >= 201103L + _Deque_base(_Deque_base&& __x) + : _M_impl(std::move(__x._M_get_Tp_allocator())) + { + _M_initialize_map(0); + if (__x._M_impl._M_map) + this->_M_impl._M_swap_data(__x._M_impl); + } + + _Deque_base(_Deque_base&& __x, const allocator_type& __a) + : _M_impl(std::move(__x._M_impl), _Tp_alloc_type(__a)) + { __x._M_initialize_map(0); } + + _Deque_base(_Deque_base&& __x, const allocator_type& __a, size_t __n) + : _M_impl(__a) + { + if (__x.get_allocator() == __a) + { + if (__x._M_impl._M_map) + { + _M_initialize_map(0); + this->_M_impl._M_swap_data(__x._M_impl); + } + } + else + { + _M_initialize_map(__n); + } + } +#endif + + ~_Deque_base() _GLIBCXX_NOEXCEPT; + + typedef typename iterator::_Map_pointer _Map_pointer; + + struct _Deque_impl_data + { + _Map_pointer _M_map; + size_t _M_map_size; + iterator _M_start; + iterator _M_finish; + + _Deque_impl_data() _GLIBCXX_NOEXCEPT + : _M_map(), _M_map_size(), _M_start(), _M_finish() + { } + +#if __cplusplus >= 201103L + _Deque_impl_data(const _Deque_impl_data&) = default; + _Deque_impl_data& + operator=(const _Deque_impl_data&) = default; + + _Deque_impl_data(_Deque_impl_data&& __x) noexcept + : _Deque_impl_data(__x) + { __x = _Deque_impl_data(); } +#endif + + void + _M_swap_data(_Deque_impl_data& __x) _GLIBCXX_NOEXCEPT + { + // Do not use std::swap(_M_start, __x._M_start), etc as it loses + // information used by TBAA. + std::swap(*this, __x); + } + }; + + // This struct encapsulates the implementation of the std::deque + // standard container and at the same time makes use of the EBO + // for empty allocators. + struct _Deque_impl + : public _Tp_alloc_type, public _Deque_impl_data + { + _Deque_impl() _GLIBCXX_NOEXCEPT_IF( + is_nothrow_default_constructible<_Tp_alloc_type>::value) + : _Tp_alloc_type() + { } + + _Deque_impl(const _Tp_alloc_type& __a) _GLIBCXX_NOEXCEPT + : _Tp_alloc_type(__a) + { } + +#if __cplusplus >= 201103L + _Deque_impl(_Deque_impl&&) = default; + + _Deque_impl(_Tp_alloc_type&& __a) noexcept + : _Tp_alloc_type(std::move(__a)) + { } + + _Deque_impl(_Deque_impl&& __d, _Tp_alloc_type&& __a) + : _Tp_alloc_type(std::move(__a)), _Deque_impl_data(std::move(__d)) + { } +#endif + }; + + _Tp_alloc_type& + _M_get_Tp_allocator() _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + const _Tp_alloc_type& + _M_get_Tp_allocator() const _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + _Map_alloc_type + _M_get_map_allocator() const _GLIBCXX_NOEXCEPT + { return _Map_alloc_type(_M_get_Tp_allocator()); } + + _Ptr + _M_allocate_node() + { + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Traits; + return _Traits::allocate(_M_impl, __deque_buf_size(sizeof(_Tp))); + } + + void + _M_deallocate_node(_Ptr __p) _GLIBCXX_NOEXCEPT + { + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Traits; + _Traits::deallocate(_M_impl, __p, __deque_buf_size(sizeof(_Tp))); + } + + _Map_pointer + _M_allocate_map(size_t __n) + { + _Map_alloc_type __map_alloc = _M_get_map_allocator(); + return _Map_alloc_traits::allocate(__map_alloc, __n); + } + + void + _M_deallocate_map(_Map_pointer __p, size_t __n) _GLIBCXX_NOEXCEPT + { + _Map_alloc_type __map_alloc = _M_get_map_allocator(); + _Map_alloc_traits::deallocate(__map_alloc, __p, __n); + } + + void _M_initialize_map(size_t); + void _M_create_nodes(_Map_pointer __nstart, _Map_pointer __nfinish); + void _M_destroy_nodes(_Map_pointer __nstart, + _Map_pointer __nfinish) _GLIBCXX_NOEXCEPT; + enum { _S_initial_map_size = 8 }; + + _Deque_impl _M_impl; + }; + + template + _Deque_base<_Tp, _Alloc>:: + ~_Deque_base() _GLIBCXX_NOEXCEPT + { + if (this->_M_impl._M_map) + { + _M_destroy_nodes(this->_M_impl._M_start._M_node, + this->_M_impl._M_finish._M_node + 1); + _M_deallocate_map(this->_M_impl._M_map, this->_M_impl._M_map_size); + } + } + + /** + * @brief Layout storage. + * @param __num_elements The count of T's for which to allocate space + * at first. + * @return Nothing. + * + * The initial underlying memory layout is a bit complicated... + */ + template + void + _Deque_base<_Tp, _Alloc>:: + _M_initialize_map(size_t __num_elements) + { + const size_t __num_nodes = (__num_elements / __deque_buf_size(sizeof(_Tp)) + + 1); + + this->_M_impl._M_map_size = std::max((size_t) _S_initial_map_size, + size_t(__num_nodes + 2)); + this->_M_impl._M_map = _M_allocate_map(this->_M_impl._M_map_size); + + // For "small" maps (needing less than _M_map_size nodes), allocation + // starts in the middle elements and grows outwards. So nstart may be + // the beginning of _M_map, but for small maps it may be as far in as + // _M_map+3. + + _Map_pointer __nstart = (this->_M_impl._M_map + + (this->_M_impl._M_map_size - __num_nodes) / 2); + _Map_pointer __nfinish = __nstart + __num_nodes; + + __try + { _M_create_nodes(__nstart, __nfinish); } + __catch(...) + { + _M_deallocate_map(this->_M_impl._M_map, this->_M_impl._M_map_size); + this->_M_impl._M_map = _Map_pointer(); + this->_M_impl._M_map_size = 0; + __throw_exception_again; + } + + this->_M_impl._M_start._M_set_node(__nstart); + this->_M_impl._M_finish._M_set_node(__nfinish - 1); + this->_M_impl._M_start._M_cur = _M_impl._M_start._M_first; + this->_M_impl._M_finish._M_cur = (this->_M_impl._M_finish._M_first + + __num_elements + % __deque_buf_size(sizeof(_Tp))); + } + + template + void + _Deque_base<_Tp, _Alloc>:: + _M_create_nodes(_Map_pointer __nstart, _Map_pointer __nfinish) + { + _Map_pointer __cur; + __try + { + for (__cur = __nstart; __cur < __nfinish; ++__cur) + *__cur = this->_M_allocate_node(); + } + __catch(...) + { + _M_destroy_nodes(__nstart, __cur); + __throw_exception_again; + } + } + + template + void + _Deque_base<_Tp, _Alloc>:: + _M_destroy_nodes(_Map_pointer __nstart, + _Map_pointer __nfinish) _GLIBCXX_NOEXCEPT + { + for (_Map_pointer __n = __nstart; __n < __nfinish; ++__n) + _M_deallocate_node(*__n); + } + + /** + * @brief A standard container using fixed-size memory allocation and + * constant-time manipulation of elements at either end. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Alloc Allocator type, defaults to allocator<_Tp>. + * + * Meets the requirements of a container, a + * reversible container, and a + * sequence, including the + * optional sequence requirements. + * + * In previous HP/SGI versions of deque, there was an extra template + * parameter so users could control the node size. This extension turned + * out to violate the C++ standard (it can be detected using template + * template parameters), and it was removed. + * + * Here's how a deque manages memory. Each deque has 4 members: + * + * - Tp** _M_map + * - size_t _M_map_size + * - iterator _M_start, _M_finish + * + * map_size is at least 8. %map is an array of map_size + * pointers-to-@a nodes. (The name %map has nothing to do with the + * std::map class, and @b nodes should not be confused with + * std::list's usage of @a node.) + * + * A @a node has no specific type name as such, but it is referred + * to as @a node in this file. It is a simple array-of-Tp. If Tp + * is very large, there will be one Tp element per node (i.e., an + * @a array of one). For non-huge Tp's, node size is inversely + * related to Tp size: the larger the Tp, the fewer Tp's will fit + * in a node. The goal here is to keep the total size of a node + * relatively small and constant over different Tp's, to improve + * allocator efficiency. + * + * Not every pointer in the %map array will point to a node. If + * the initial number of elements in the deque is small, the + * /middle/ %map pointers will be valid, and the ones at the edges + * will be unused. This same situation will arise as the %map + * grows: available %map pointers, if any, will be on the ends. As + * new nodes are created, only a subset of the %map's pointers need + * to be copied @a outward. + * + * Class invariants: + * - For any nonsingular iterator i: + * - i.node points to a member of the %map array. (Yes, you read that + * correctly: i.node does not actually point to a node.) The member of + * the %map array is what actually points to the node. + * - i.first == *(i.node) (This points to the node (first Tp element).) + * - i.last == i.first + node_size + * - i.cur is a pointer in the range [i.first, i.last). NOTE: + * the implication of this is that i.cur is always a dereferenceable + * pointer, even if i is a past-the-end iterator. + * - Start and Finish are always nonsingular iterators. NOTE: this + * means that an empty deque must have one node, a deque with > + class deque : protected _Deque_base<_Tp, _Alloc> + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires2(_Tp, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L + static_assert(is_same::type, _Tp>::value, + "std::deque must have a non-const, non-volatile value_type"); +# if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::deque must have the same value_type as its allocator"); +# endif +#endif + + typedef _Deque_base<_Tp, _Alloc> _Base; + typedef typename _Base::_Tp_alloc_type _Tp_alloc_type; + typedef typename _Base::_Alloc_traits _Alloc_traits; + typedef typename _Base::_Map_pointer _Map_pointer; + + public: + typedef _Tp value_type; + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + typedef typename _Base::iterator iterator; + typedef typename _Base::const_iterator const_iterator; + typedef std::reverse_iterator const_reverse_iterator; + typedef std::reverse_iterator reverse_iterator; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Alloc allocator_type; + + private: + static size_t _S_buffer_size() _GLIBCXX_NOEXCEPT + { return __deque_buf_size(sizeof(_Tp)); } + + // Functions controlling memory layout, and nothing else. + using _Base::_M_initialize_map; + using _Base::_M_create_nodes; + using _Base::_M_destroy_nodes; + using _Base::_M_allocate_node; + using _Base::_M_deallocate_node; + using _Base::_M_allocate_map; + using _Base::_M_deallocate_map; + using _Base::_M_get_Tp_allocator; + + /** + * A total of four data members accumulated down the hierarchy. + * May be accessed via _M_impl.* + */ + using _Base::_M_impl; + + public: + // [23.2.1.1] construct/copy/destroy + // (assign() and get_allocator() are also listed in this section) + + /** + * @brief Creates a %deque with no elements. + */ +#if __cplusplus >= 201103L + deque() = default; +#else + deque() { } +#endif + + /** + * @brief Creates a %deque with no elements. + * @param __a An allocator object. + */ + explicit + deque(const allocator_type& __a) + : _Base(__a, 0) { } + +#if __cplusplus >= 201103L + /** + * @brief Creates a %deque with default constructed elements. + * @param __n The number of elements to initially create. + * @param __a An allocator. + * + * This constructor fills the %deque with @a n default + * constructed elements. + */ + explicit + deque(size_type __n, const allocator_type& __a = allocator_type()) + : _Base(__a, _S_check_init_len(__n, __a)) + { _M_default_initialize(); } + + /** + * @brief Creates a %deque with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __a An allocator. + * + * This constructor fills the %deque with @a __n copies of @a __value. + */ + deque(size_type __n, const value_type& __value, + const allocator_type& __a = allocator_type()) + : _Base(__a, _S_check_init_len(__n, __a)) + { _M_fill_initialize(__value); } +#else + /** + * @brief Creates a %deque with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __a An allocator. + * + * This constructor fills the %deque with @a __n copies of @a __value. + */ + explicit + deque(size_type __n, const value_type& __value = value_type(), + const allocator_type& __a = allocator_type()) + : _Base(__a, _S_check_init_len(__n, __a)) + { _M_fill_initialize(__value); } +#endif + + /** + * @brief %Deque copy constructor. + * @param __x A %deque of identical element and allocator types. + * + * The newly-created %deque uses a copy of the allocator object used + * by @a __x (unless the allocator traits dictate a different object). + */ + deque(const deque& __x) + : _Base(_Alloc_traits::_S_select_on_copy(__x._M_get_Tp_allocator()), + __x.size()) + { std::__uninitialized_copy_a(__x.begin(), __x.end(), + this->_M_impl._M_start, + _M_get_Tp_allocator()); } + +#if __cplusplus >= 201103L + /** + * @brief %Deque move constructor. + * + * The newly-created %deque contains the exact contents of the + * moved instance. + * The contents of the moved instance are a valid, but unspecified + * %deque. + */ + deque(deque&&) = default; + + /// Copy constructor with alternative allocator + deque(const deque& __x, const allocator_type& __a) + : _Base(__a, __x.size()) + { std::__uninitialized_copy_a(__x.begin(), __x.end(), + this->_M_impl._M_start, + _M_get_Tp_allocator()); } + + /// Move constructor with alternative allocator + deque(deque&& __x, const allocator_type& __a) + : deque(std::move(__x), __a, typename _Alloc_traits::is_always_equal{}) + { } + + private: + deque(deque&& __x, const allocator_type& __a, true_type) + : _Base(std::move(__x), __a) + { } + + deque(deque&& __x, const allocator_type& __a, false_type) + : _Base(std::move(__x), __a, __x.size()) + { + if (__x.get_allocator() != __a && !__x.empty()) + { + std::__uninitialized_move_a(__x.begin(), __x.end(), + this->_M_impl._M_start, + _M_get_Tp_allocator()); + __x.clear(); + } + } + + public: + /** + * @brief Builds a %deque from an initializer list. + * @param __l An initializer_list. + * @param __a An allocator object. + * + * Create a %deque consisting of copies of the elements in the + * initializer_list @a __l. + * + * This will call the element type's copy constructor N times + * (where N is __l.size()) and do no memory reallocation. + */ + deque(initializer_list __l, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + _M_range_initialize(__l.begin(), __l.end(), + random_access_iterator_tag()); + } +#endif + + /** + * @brief Builds a %deque from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __a An allocator object. + * + * Create a %deque consisting of copies of the elements from [__first, + * __last). + * + * If the iterators are forward, bidirectional, or random-access, then + * this will call the elements' copy constructor N times (where N is + * distance(__first,__last)) and do no memory reallocation. But if only + * input iterators are used, then this will do at most 2N calls to the + * copy constructor, and logN memory reallocations. + */ +#if __cplusplus >= 201103L + template> + deque(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + _M_range_initialize(__first, __last, + std::__iterator_category(__first)); + } +#else + template + deque(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_initialize_dispatch(__first, __last, _Integral()); + } +#endif + + /** + * The dtor only erases the elements, and note that if the elements + * themselves are pointers, the pointed-to memory is not touched in any + * way. Managing the pointer is the user's responsibility. + */ + ~deque() + { _M_destroy_data(begin(), end(), _M_get_Tp_allocator()); } + + /** + * @brief %Deque assignment operator. + * @param __x A %deque of identical element and allocator types. + * + * All the elements of @a x are copied. + * + * The newly-created %deque uses a copy of the allocator object used + * by @a __x (unless the allocator traits dictate a different object). + */ + deque& + operator=(const deque& __x); + +#if __cplusplus >= 201103L + /** + * @brief %Deque move assignment operator. + * @param __x A %deque of identical element and allocator types. + * + * The contents of @a __x are moved into this deque (without copying, + * if the allocators permit it). + * @a __x is a valid, but unspecified %deque. + */ + deque& + operator=(deque&& __x) noexcept(_Alloc_traits::_S_always_equal()) + { + using __always_equal = typename _Alloc_traits::is_always_equal; + _M_move_assign1(std::move(__x), __always_equal{}); + return *this; + } + + /** + * @brief Assigns an initializer list to a %deque. + * @param __l An initializer_list. + * + * This function fills a %deque with copies of the elements in the + * initializer_list @a __l. + * + * Note that the assignment completely changes the %deque and that the + * resulting %deque's size is the same as the number of elements + * assigned. + */ + deque& + operator=(initializer_list __l) + { + _M_assign_aux(__l.begin(), __l.end(), + random_access_iterator_tag()); + return *this; + } +#endif + + /** + * @brief Assigns a given value to a %deque. + * @param __n Number of elements to be assigned. + * @param __val Value to be assigned. + * + * This function fills a %deque with @a n copies of the given + * value. Note that the assignment completely changes the + * %deque and that the resulting %deque's size is the same as + * the number of elements assigned. + */ + void + assign(size_type __n, const value_type& __val) + { _M_fill_assign(__n, __val); } + + /** + * @brief Assigns a range to a %deque. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function fills a %deque with copies of the elements in the + * range [__first,__last). + * + * Note that the assignment completely changes the %deque and that the + * resulting %deque's size is the same as the number of elements + * assigned. + */ +#if __cplusplus >= 201103L + template> + void + assign(_InputIterator __first, _InputIterator __last) + { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } +#else + template + void + assign(_InputIterator __first, _InputIterator __last) + { + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_assign_dispatch(__first, __last, _Integral()); + } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Assigns an initializer list to a %deque. + * @param __l An initializer_list. + * + * This function fills a %deque with copies of the elements in the + * initializer_list @a __l. + * + * Note that the assignment completely changes the %deque and that the + * resulting %deque's size is the same as the number of elements + * assigned. + */ + void + assign(initializer_list __l) + { _M_assign_aux(__l.begin(), __l.end(), random_access_iterator_tag()); } +#endif + + /// Get a copy of the memory allocation object. + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return _Base::get_allocator(); } + + // iterators + /** + * Returns a read/write iterator that points to the first element in the + * %deque. Iteration is done in ordinary element order. + */ + iterator + begin() _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_start; } + + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %deque. Iteration is done in ordinary element order. + */ + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_start; } + + /** + * Returns a read/write iterator that points one past the last + * element in the %deque. Iteration is done in ordinary + * element order. + */ + iterator + end() _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_finish; } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %deque. Iteration is done in + * ordinary element order. + */ + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_finish; } + + /** + * Returns a read/write reverse iterator that points to the + * last element in the %deque. Iteration is done in reverse + * element order. + */ + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return reverse_iterator(this->_M_impl._M_finish); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to the last element in the %deque. Iteration is done in + * reverse element order. + */ + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(this->_M_impl._M_finish); } + + /** + * Returns a read/write reverse iterator that points to one + * before the first element in the %deque. Iteration is done + * in reverse element order. + */ + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return reverse_iterator(this->_M_impl._M_start); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to one before the first element in the %deque. Iteration is + * done in reverse element order. + */ + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(this->_M_impl._M_start); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %deque. Iteration is done in ordinary element order. + */ + const_iterator + cbegin() const noexcept + { return this->_M_impl._M_start; } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %deque. Iteration is done in + * ordinary element order. + */ + const_iterator + cend() const noexcept + { return this->_M_impl._M_finish; } + + /** + * Returns a read-only (constant) reverse iterator that points + * to the last element in the %deque. Iteration is done in + * reverse element order. + */ + const_reverse_iterator + crbegin() const noexcept + { return const_reverse_iterator(this->_M_impl._M_finish); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to one before the first element in the %deque. Iteration is + * done in reverse element order. + */ + const_reverse_iterator + crend() const noexcept + { return const_reverse_iterator(this->_M_impl._M_start); } +#endif + + // [23.2.1.2] capacity + /** Returns the number of elements in the %deque. */ + size_type + size() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_finish - this->_M_impl._M_start; } + + /** Returns the size() of the largest possible %deque. */ + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _S_max_size(_M_get_Tp_allocator()); } + +#if __cplusplus >= 201103L + /** + * @brief Resizes the %deque to the specified number of elements. + * @param __new_size Number of elements the %deque should contain. + * + * This function will %resize the %deque to the specified + * number of elements. If the number is smaller than the + * %deque's current size the %deque is truncated, otherwise + * default constructed elements are appended. + */ + void + resize(size_type __new_size) + { + const size_type __len = size(); + if (__new_size > __len) + _M_default_append(__new_size - __len); + else if (__new_size < __len) + _M_erase_at_end(this->_M_impl._M_start + + difference_type(__new_size)); + } + + /** + * @brief Resizes the %deque to the specified number of elements. + * @param __new_size Number of elements the %deque should contain. + * @param __x Data with which new elements should be populated. + * + * This function will %resize the %deque to the specified + * number of elements. If the number is smaller than the + * %deque's current size the %deque is truncated, otherwise the + * %deque is extended and new elements are populated with given + * data. + */ + void + resize(size_type __new_size, const value_type& __x) +#else + /** + * @brief Resizes the %deque to the specified number of elements. + * @param __new_size Number of elements the %deque should contain. + * @param __x Data with which new elements should be populated. + * + * This function will %resize the %deque to the specified + * number of elements. If the number is smaller than the + * %deque's current size the %deque is truncated, otherwise the + * %deque is extended and new elements are populated with given + * data. + */ + void + resize(size_type __new_size, value_type __x = value_type()) +#endif + { + const size_type __len = size(); + if (__new_size > __len) + _M_fill_insert(this->_M_impl._M_finish, __new_size - __len, __x); + else if (__new_size < __len) + _M_erase_at_end(this->_M_impl._M_start + + difference_type(__new_size)); + } + +#if __cplusplus >= 201103L + /** A non-binding request to reduce memory use. */ + void + shrink_to_fit() noexcept + { _M_shrink_to_fit(); } +#endif + + /** + * Returns true if the %deque is empty. (Thus begin() would + * equal end().) + */ + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_finish == this->_M_impl._M_start; } + + // element access + /** + * @brief Subscript access to the data contained in the %deque. + * @param __n The index of the element for which data should be + * accessed. + * @return Read/write reference to data. + * + * This operator allows for easy, array-style, data access. + * Note that data access with this operator is unchecked and + * out_of_range lookups are not defined. (For checked lookups + * see at().) + */ + reference + operator[](size_type __n) _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_subscript(__n); + return this->_M_impl._M_start[difference_type(__n)]; + } + + /** + * @brief Subscript access to the data contained in the %deque. + * @param __n The index of the element for which data should be + * accessed. + * @return Read-only (constant) reference to data. + * + * This operator allows for easy, array-style, data access. + * Note that data access with this operator is unchecked and + * out_of_range lookups are not defined. (For checked lookups + * see at().) + */ + const_reference + operator[](size_type __n) const _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_subscript(__n); + return this->_M_impl._M_start[difference_type(__n)]; + } + + protected: + /// Safety check used only from at(). + void + _M_range_check(size_type __n) const + { + if (__n >= this->size()) + __throw_out_of_range_fmt(__N("deque::_M_range_check: __n " + "(which is %zu)>= this->size() " + "(which is %zu)"), + __n, this->size()); + } + + public: + /** + * @brief Provides access to the data contained in the %deque. + * @param __n The index of the element for which data should be + * accessed. + * @return Read/write reference to data. + * @throw std::out_of_range If @a __n is an invalid index. + * + * This function provides for safer data access. The parameter + * is first checked that it is in the range of the deque. The + * function throws out_of_range if the check fails. + */ + reference + at(size_type __n) + { + _M_range_check(__n); + return (*this)[__n]; + } + + /** + * @brief Provides access to the data contained in the %deque. + * @param __n The index of the element for which data should be + * accessed. + * @return Read-only (constant) reference to data. + * @throw std::out_of_range If @a __n is an invalid index. + * + * This function provides for safer data access. The parameter is first + * checked that it is in the range of the deque. The function throws + * out_of_range if the check fails. + */ + const_reference + at(size_type __n) const + { + _M_range_check(__n); + return (*this)[__n]; + } + + /** + * Returns a read/write reference to the data at the first + * element of the %deque. + */ + reference + front() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + return *begin(); + } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %deque. + */ + const_reference + front() const _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + return *begin(); + } + + /** + * Returns a read/write reference to the data at the last element of the + * %deque. + */ + reference + back() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + iterator __tmp = end(); + --__tmp; + return *__tmp; + } + + /** + * Returns a read-only (constant) reference to the data at the last + * element of the %deque. + */ + const_reference + back() const _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + const_iterator __tmp = end(); + --__tmp; + return *__tmp; + } + + // [23.2.1.2] modifiers + /** + * @brief Add data to the front of the %deque. + * @param __x Data to be added. + * + * This is a typical stack operation. The function creates an + * element at the front of the %deque and assigns the given + * data to it. Due to the nature of a %deque this operation + * can be done in constant time. + */ + void + push_front(const value_type& __x) + { + if (this->_M_impl._M_start._M_cur != this->_M_impl._M_start._M_first) + { + _Alloc_traits::construct(this->_M_impl, + this->_M_impl._M_start._M_cur - 1, + __x); + --this->_M_impl._M_start._M_cur; + } + else + _M_push_front_aux(__x); + } + +#if __cplusplus >= 201103L + void + push_front(value_type&& __x) + { emplace_front(std::move(__x)); } + + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_front(_Args&&... __args); +#endif + + /** + * @brief Add data to the end of the %deque. + * @param __x Data to be added. + * + * This is a typical stack operation. The function creates an + * element at the end of the %deque and assigns the given data + * to it. Due to the nature of a %deque this operation can be + * done in constant time. + */ + void + push_back(const value_type& __x) + { + if (this->_M_impl._M_finish._M_cur + != this->_M_impl._M_finish._M_last - 1) + { + _Alloc_traits::construct(this->_M_impl, + this->_M_impl._M_finish._M_cur, __x); + ++this->_M_impl._M_finish._M_cur; + } + else + _M_push_back_aux(__x); + } + +#if __cplusplus >= 201103L + void + push_back(value_type&& __x) + { emplace_back(std::move(__x)); } + + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_back(_Args&&... __args); +#endif + + /** + * @brief Removes first element. + * + * This is a typical stack operation. It shrinks the %deque by one. + * + * Note that no data is returned, and if the first element's data is + * needed, it should be retrieved before pop_front() is called. + */ + void + pop_front() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + if (this->_M_impl._M_start._M_cur + != this->_M_impl._M_start._M_last - 1) + { + _Alloc_traits::destroy(_M_get_Tp_allocator(), + this->_M_impl._M_start._M_cur); + ++this->_M_impl._M_start._M_cur; + } + else + _M_pop_front_aux(); + } + + /** + * @brief Removes last element. + * + * This is a typical stack operation. It shrinks the %deque by one. + * + * Note that no data is returned, and if the last element's data is + * needed, it should be retrieved before pop_back() is called. + */ + void + pop_back() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + if (this->_M_impl._M_finish._M_cur + != this->_M_impl._M_finish._M_first) + { + --this->_M_impl._M_finish._M_cur; + _Alloc_traits::destroy(_M_get_Tp_allocator(), + this->_M_impl._M_finish._M_cur); + } + else + _M_pop_back_aux(); + } + +#if __cplusplus >= 201103L + /** + * @brief Inserts an object in %deque before specified iterator. + * @param __position A const_iterator into the %deque. + * @param __args Arguments. + * @return An iterator that points to the inserted data. + * + * This function will insert an object of type T constructed + * with T(std::forward(args)...) before the specified location. + */ + template + iterator + emplace(const_iterator __position, _Args&&... __args); + + /** + * @brief Inserts given value into %deque before specified iterator. + * @param __position A const_iterator into the %deque. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value before the + * specified location. + */ + iterator + insert(const_iterator __position, const value_type& __x); +#else + /** + * @brief Inserts given value into %deque before specified iterator. + * @param __position An iterator into the %deque. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value before the + * specified location. + */ + iterator + insert(iterator __position, const value_type& __x); +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts given rvalue into %deque before specified iterator. + * @param __position A const_iterator into the %deque. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given rvalue before the + * specified location. + */ + iterator + insert(const_iterator __position, value_type&& __x) + { return emplace(__position, std::move(__x)); } + + /** + * @brief Inserts an initializer list into the %deque. + * @param __p An iterator into the %deque. + * @param __l An initializer_list. + * @return An iterator that points to the inserted data. + * + * This function will insert copies of the data in the + * initializer_list @a __l into the %deque before the location + * specified by @a __p. This is known as list insert. + */ + iterator + insert(const_iterator __p, initializer_list __l) + { + auto __offset = __p - cbegin(); + _M_range_insert_aux(__p._M_const_cast(), __l.begin(), __l.end(), + std::random_access_iterator_tag()); + return begin() + __offset; + } + + /** + * @brief Inserts a number of copies of given data into the %deque. + * @param __position A const_iterator into the %deque. + * @param __n Number of elements to be inserted. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a specified number of copies of the given + * data before the location specified by @a __position. + */ + iterator + insert(const_iterator __position, size_type __n, const value_type& __x) + { + difference_type __offset = __position - cbegin(); + _M_fill_insert(__position._M_const_cast(), __n, __x); + return begin() + __offset; + } +#else + /** + * @brief Inserts a number of copies of given data into the %deque. + * @param __position An iterator into the %deque. + * @param __n Number of elements to be inserted. + * @param __x Data to be inserted. + * + * This function will insert a specified number of copies of the given + * data before the location specified by @a __position. + */ + void + insert(iterator __position, size_type __n, const value_type& __x) + { _M_fill_insert(__position, __n, __x); } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts a range into the %deque. + * @param __position A const_iterator into the %deque. + * @param __first An input iterator. + * @param __last An input iterator. + * @return An iterator that points to the inserted data. + * + * This function will insert copies of the data in the range + * [__first,__last) into the %deque before the location specified + * by @a __position. This is known as range insert. + */ + template> + iterator + insert(const_iterator __position, _InputIterator __first, + _InputIterator __last) + { + difference_type __offset = __position - cbegin(); + _M_range_insert_aux(__position._M_const_cast(), __first, __last, + std::__iterator_category(__first)); + return begin() + __offset; + } +#else + /** + * @brief Inserts a range into the %deque. + * @param __position An iterator into the %deque. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function will insert copies of the data in the range + * [__first,__last) into the %deque before the location specified + * by @a __position. This is known as range insert. + */ + template + void + insert(iterator __position, _InputIterator __first, + _InputIterator __last) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_insert_dispatch(__position, __first, __last, _Integral()); + } +#endif + + /** + * @brief Remove element at given position. + * @param __position Iterator pointing to element to be erased. + * @return An iterator pointing to the next element (or end()). + * + * This function will erase the element at the given position and thus + * shorten the %deque by one. + * + * The user is cautioned that + * this function only erases the element, and that if the element is + * itself a pointer, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + iterator +#if __cplusplus >= 201103L + erase(const_iterator __position) +#else + erase(iterator __position) +#endif + { return _M_erase(__position._M_const_cast()); } + + /** + * @brief Remove a range of elements. + * @param __first Iterator pointing to the first element to be erased. + * @param __last Iterator pointing to one past the last element to be + * erased. + * @return An iterator pointing to the element pointed to by @a last + * prior to erasing (or end()). + * + * This function will erase the elements in the range + * [__first,__last) and shorten the %deque accordingly. + * + * The user is cautioned that + * this function only erases the elements, and that if the elements + * themselves are pointers, the pointed-to memory is not touched in any + * way. Managing the pointer is the user's responsibility. + */ + iterator +#if __cplusplus >= 201103L + erase(const_iterator __first, const_iterator __last) +#else + erase(iterator __first, iterator __last) +#endif + { return _M_erase(__first._M_const_cast(), __last._M_const_cast()); } + + /** + * @brief Swaps data with another %deque. + * @param __x A %deque of the same element and allocator types. + * + * This exchanges the elements between two deques in constant time. + * (Four pointers, so it should be quite fast.) + * Note that the global std::swap() function is specialized such that + * std::swap(d1,d2) will feed to this function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(deque& __x) _GLIBCXX_NOEXCEPT + { +#if __cplusplus >= 201103L + __glibcxx_assert(_Alloc_traits::propagate_on_container_swap::value + || _M_get_Tp_allocator() == __x._M_get_Tp_allocator()); +#endif + _M_impl._M_swap_data(__x._M_impl); + _Alloc_traits::_S_on_swap(_M_get_Tp_allocator(), + __x._M_get_Tp_allocator()); + } + + /** + * Erases all the elements. Note that this function only erases the + * elements, and that if the elements themselves are pointers, the + * pointed-to memory is not touched in any way. Managing the pointer is + * the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { _M_erase_at_end(begin()); } + + protected: + // Internal constructor functions follow. + +#if __cplusplus < 201103L + // called by the range constructor to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type) + { + _M_initialize_map(_S_check_init_len(static_cast(__n), + _M_get_Tp_allocator())); + _M_fill_initialize(__x); + } + + // called by the range constructor to implement [23.1.1]/9 + template + void + _M_initialize_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { + _M_range_initialize(__first, __last, + std::__iterator_category(__first)); + } +#endif + + static size_t + _S_check_init_len(size_t __n, const allocator_type& __a) + { + if (__n > _S_max_size(__a)) + __throw_length_error( + __N("cannot create std::deque larger than max_size()")); + return __n; + } + + static size_type + _S_max_size(const _Tp_alloc_type& __a) _GLIBCXX_NOEXCEPT + { + const size_t __diffmax = __gnu_cxx::__numeric_traits::__max; + const size_t __allocmax = _Alloc_traits::max_size(__a); + return (std::min)(__diffmax, __allocmax); + } + + // called by the second initialize_dispatch above + //@{ + /** + * @brief Fills the deque with whatever is in [first,last). + * @param __first An input iterator. + * @param __last An input iterator. + * @return Nothing. + * + * If the iterators are actually forward iterators (or better), then the + * memory layout can be done all at once. Else we move forward using + * push_back on each value from the iterator. + */ + template + void + _M_range_initialize(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag); + + // called by the second initialize_dispatch above + template + void + _M_range_initialize(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag); + //@} + + /** + * @brief Fills the %deque with copies of value. + * @param __value Initial value. + * @return Nothing. + * @pre _M_start and _M_finish have already been initialized, + * but none of the %deque's elements have yet been constructed. + * + * This function is called only when the user provides an explicit size + * (with or without an explicit exemplar value). + */ + void + _M_fill_initialize(const value_type& __value); + +#if __cplusplus >= 201103L + // called by deque(n). + void + _M_default_initialize(); +#endif + + // Internal assign functions follow. The *_aux functions do the actual + // assignment work for the range versions. + +#if __cplusplus < 201103L + // called by the range assign to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_assign_dispatch(_Integer __n, _Integer __val, __true_type) + { _M_fill_assign(__n, __val); } + + // called by the range assign to implement [23.1.1]/9 + template + void + _M_assign_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } +#endif + + // called by the second assign_dispatch above + template + void + _M_assign_aux(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag); + + // called by the second assign_dispatch above + template + void + _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __len = std::distance(__first, __last); + if (__len > size()) + { + _ForwardIterator __mid = __first; + std::advance(__mid, size()); + std::copy(__first, __mid, begin()); + _M_range_insert_aux(end(), __mid, __last, + std::__iterator_category(__first)); + } + else + _M_erase_at_end(std::copy(__first, __last, begin())); + } + + // Called by assign(n,t), and the range assign when it turns out + // to be the same thing. + void + _M_fill_assign(size_type __n, const value_type& __val) + { + if (__n > size()) + { + std::fill(begin(), end(), __val); + _M_fill_insert(end(), __n - size(), __val); + } + else + { + _M_erase_at_end(begin() + difference_type(__n)); + std::fill(begin(), end(), __val); + } + } + + //@{ + /// Helper functions for push_* and pop_*. +#if __cplusplus < 201103L + void _M_push_back_aux(const value_type&); + + void _M_push_front_aux(const value_type&); +#else + template + void _M_push_back_aux(_Args&&... __args); + + template + void _M_push_front_aux(_Args&&... __args); +#endif + + void _M_pop_back_aux(); + + void _M_pop_front_aux(); + //@} + + // Internal insert functions follow. The *_aux functions do the actual + // insertion work when all shortcuts fail. + +#if __cplusplus < 201103L + // called by the range insert to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_insert_dispatch(iterator __pos, + _Integer __n, _Integer __x, __true_type) + { _M_fill_insert(__pos, __n, __x); } + + // called by the range insert to implement [23.1.1]/9 + template + void + _M_insert_dispatch(iterator __pos, + _InputIterator __first, _InputIterator __last, + __false_type) + { + _M_range_insert_aux(__pos, __first, __last, + std::__iterator_category(__first)); + } +#endif + + // called by the second insert_dispatch above + template + void + _M_range_insert_aux(iterator __pos, _InputIterator __first, + _InputIterator __last, std::input_iterator_tag); + + // called by the second insert_dispatch above + template + void + _M_range_insert_aux(iterator __pos, _ForwardIterator __first, + _ForwardIterator __last, std::forward_iterator_tag); + + // Called by insert(p,n,x), and the range insert when it turns out to be + // the same thing. Can use fill functions in optimal situations, + // otherwise passes off to insert_aux(p,n,x). + void + _M_fill_insert(iterator __pos, size_type __n, const value_type& __x); + + // called by insert(p,x) +#if __cplusplus < 201103L + iterator + _M_insert_aux(iterator __pos, const value_type& __x); +#else + template + iterator + _M_insert_aux(iterator __pos, _Args&&... __args); +#endif + + // called by insert(p,n,x) via fill_insert + void + _M_insert_aux(iterator __pos, size_type __n, const value_type& __x); + + // called by range_insert_aux for forward iterators + template + void + _M_insert_aux(iterator __pos, + _ForwardIterator __first, _ForwardIterator __last, + size_type __n); + + + // Internal erase functions follow. + + void + _M_destroy_data_aux(iterator __first, iterator __last); + + // Called by ~deque(). + // NB: Doesn't deallocate the nodes. + template + void + _M_destroy_data(iterator __first, iterator __last, const _Alloc1&) + { _M_destroy_data_aux(__first, __last); } + + void + _M_destroy_data(iterator __first, iterator __last, + const std::allocator<_Tp>&) + { + if (!__has_trivial_destructor(value_type)) + _M_destroy_data_aux(__first, __last); + } + + // Called by erase(q1, q2). + void + _M_erase_at_begin(iterator __pos) + { + _M_destroy_data(begin(), __pos, _M_get_Tp_allocator()); + _M_destroy_nodes(this->_M_impl._M_start._M_node, __pos._M_node); + this->_M_impl._M_start = __pos; + } + + // Called by erase(q1, q2), resize(), clear(), _M_assign_aux, + // _M_fill_assign, operator=. + void + _M_erase_at_end(iterator __pos) + { + _M_destroy_data(__pos, end(), _M_get_Tp_allocator()); + _M_destroy_nodes(__pos._M_node + 1, + this->_M_impl._M_finish._M_node + 1); + this->_M_impl._M_finish = __pos; + } + + iterator + _M_erase(iterator __pos); + + iterator + _M_erase(iterator __first, iterator __last); + +#if __cplusplus >= 201103L + // Called by resize(sz). + void + _M_default_append(size_type __n); + + bool + _M_shrink_to_fit(); +#endif + + //@{ + /// Memory-handling helpers for the previous internal insert functions. + iterator + _M_reserve_elements_at_front(size_type __n) + { + const size_type __vacancies = this->_M_impl._M_start._M_cur + - this->_M_impl._M_start._M_first; + if (__n > __vacancies) + _M_new_elements_at_front(__n - __vacancies); + return this->_M_impl._M_start - difference_type(__n); + } + + iterator + _M_reserve_elements_at_back(size_type __n) + { + const size_type __vacancies = (this->_M_impl._M_finish._M_last + - this->_M_impl._M_finish._M_cur) - 1; + if (__n > __vacancies) + _M_new_elements_at_back(__n - __vacancies); + return this->_M_impl._M_finish + difference_type(__n); + } + + void + _M_new_elements_at_front(size_type __new_elements); + + void + _M_new_elements_at_back(size_type __new_elements); + //@} + + + //@{ + /** + * @brief Memory-handling helpers for the major %map. + * + * Makes sure the _M_map has space for new nodes. Does not + * actually add the nodes. Can invalidate _M_map pointers. + * (And consequently, %deque iterators.) + */ + void + _M_reserve_map_at_back(size_type __nodes_to_add = 1) + { + if (__nodes_to_add + 1 > this->_M_impl._M_map_size + - (this->_M_impl._M_finish._M_node - this->_M_impl._M_map)) + _M_reallocate_map(__nodes_to_add, false); + } + + void + _M_reserve_map_at_front(size_type __nodes_to_add = 1) + { + if (__nodes_to_add > size_type(this->_M_impl._M_start._M_node + - this->_M_impl._M_map)) + _M_reallocate_map(__nodes_to_add, true); + } + + void + _M_reallocate_map(size_type __nodes_to_add, bool __add_at_front); + //@} + +#if __cplusplus >= 201103L + // Constant-time, nothrow move assignment when source object's memory + // can be moved because the allocators are equal. + void + _M_move_assign1(deque&& __x, /* always equal: */ true_type) noexcept + { + this->_M_impl._M_swap_data(__x._M_impl); + __x.clear(); + std::__alloc_on_move(_M_get_Tp_allocator(), __x._M_get_Tp_allocator()); + } + + // When the allocators are not equal the operation could throw, because + // we might need to allocate a new map for __x after moving from it + // or we might need to allocate new elements for *this. + void + _M_move_assign1(deque&& __x, /* always equal: */ false_type) + { + constexpr bool __move_storage = + _Alloc_traits::_S_propagate_on_move_assign(); + _M_move_assign2(std::move(__x), __bool_constant<__move_storage>()); + } + + // Destroy all elements and deallocate all memory, then replace + // with elements created from __args. + template + void + _M_replace_map(_Args&&... __args) + { + // Create new data first, so if allocation fails there are no effects. + deque __newobj(std::forward<_Args>(__args)...); + // Free existing storage using existing allocator. + clear(); + _M_deallocate_node(*begin()._M_node); // one node left after clear() + _M_deallocate_map(this->_M_impl._M_map, this->_M_impl._M_map_size); + this->_M_impl._M_map = nullptr; + this->_M_impl._M_map_size = 0; + // Take ownership of replacement memory. + this->_M_impl._M_swap_data(__newobj._M_impl); + } + + // Do move assignment when the allocator propagates. + void + _M_move_assign2(deque&& __x, /* propagate: */ true_type) + { + // Make a copy of the original allocator state. + auto __alloc = __x._M_get_Tp_allocator(); + // The allocator propagates so storage can be moved from __x, + // leaving __x in a valid empty state with a moved-from allocator. + _M_replace_map(std::move(__x)); + // Move the corresponding allocator state too. + _M_get_Tp_allocator() = std::move(__alloc); + } + + // Do move assignment when it may not be possible to move source + // object's memory, resulting in a linear-time operation. + void + _M_move_assign2(deque&& __x, /* propagate: */ false_type) + { + if (__x._M_get_Tp_allocator() == this->_M_get_Tp_allocator()) + { + // The allocators are equal so storage can be moved from __x, + // leaving __x in a valid empty state with its current allocator. + _M_replace_map(std::move(__x), __x.get_allocator()); + } + else + { + // The rvalue's allocator cannot be moved and is not equal, + // so we need to individually move each element. + _M_assign_aux(std::make_move_iterator(__x.begin()), + std::make_move_iterator(__x.end()), + std::random_access_iterator_tag()); + __x.clear(); + } + } +#endif + }; + +#if __cpp_deduction_guides >= 201606 + template::value_type, + typename _Allocator = allocator<_ValT>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireAllocator<_Allocator>> + deque(_InputIterator, _InputIterator, _Allocator = _Allocator()) + -> deque<_ValT, _Allocator>; +#endif + + /** + * @brief Deque equality comparison. + * @param __x A %deque. + * @param __y A %deque of the same type as @a __x. + * @return True iff the size and elements of the deques are equal. + * + * This is an equivalence relation. It is linear in the size of the + * deques. Deques are considered equivalent if their sizes are equal, + * and if corresponding elements compare equal. + */ + template + inline bool + operator==(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { return __x.size() == __y.size() + && std::equal(__x.begin(), __x.end(), __y.begin()); } + +#if __cpp_lib_three_way_comparison + /** + * @brief Deque ordering relation. + * @param __x A `deque`. + * @param __y A `deque` of the same type as `__x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t<_Tp> + operator<=>(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { + return std::lexicographical_compare_three_way(__x.begin(), __x.end(), + __y.begin(), __y.end(), + __detail::__synth3way); + } +#else + /** + * @brief Deque ordering relation. + * @param __x A %deque. + * @param __y A %deque of the same type as @a __x. + * @return True iff @a x is lexicographically less than @a __y. + * + * This is a total ordering relation. It is linear in the size of the + * deques. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { return std::lexicographical_compare(__x.begin(), __x.end(), + __y.begin(), __y.end()); } + + /// Based on operator== + template + inline bool + operator!=(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::deque::swap(). + template + inline void + swap(deque<_Tp,_Alloc>& __x, deque<_Tp,_Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +#undef _GLIBCXX_DEQUE_BUF_SIZE + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus >= 201103L + // std::allocator is safe, but it is not the only allocator + // for which this is valid. + template + struct __is_bitwise_relocatable<_GLIBCXX_STD_C::deque<_Tp>> + : true_type { }; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_DEQUE_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_function.h b/resources/sources/avr-libstdcpp/include/bits/stl_function.h new file mode 100644 index 000000000..77f8ccb05 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_function.h @@ -0,0 +1,1395 @@ +// Functor implementations -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_function.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{functional} + */ + +#ifndef _STL_FUNCTION_H +#define _STL_FUNCTION_H 1 + +#if __cplusplus > 201103L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // 20.3.1 base classes + /** @defgroup functors Function Objects + * @ingroup utilities + * + * Function objects, or @e functors, are objects with an @c operator() + * defined and accessible. They can be passed as arguments to algorithm + * templates and used in place of a function pointer. Not only is the + * resulting expressiveness of the library increased, but the generated + * code can be more efficient than what you might write by hand. When we + * refer to @a functors, then, generally we include function pointers in + * the description as well. + * + * Often, functors are only created as temporaries passed to algorithm + * calls, rather than being created as named variables. + * + * Two examples taken from the standard itself follow. To perform a + * by-element addition of two vectors @c a and @c b containing @c double, + * and put the result in @c a, use + * \code + * transform (a.begin(), a.end(), b.begin(), a.begin(), plus()); + * \endcode + * To negate every element in @c a, use + * \code + * transform(a.begin(), a.end(), a.begin(), negate()); + * \endcode + * The addition and negation functions will be inlined directly. + * + * The standard functors are derived from structs named @c unary_function + * and @c binary_function. These two classes contain nothing but typedefs, + * to aid in generic (template) programming. If you write your own + * functors, you might consider doing the same. + * + * @{ + */ + /** + * This is one of the @link functors functor base classes@endlink. + */ + template + struct unary_function + { + /// @c argument_type is the type of the argument + typedef _Arg argument_type; + + /// @c result_type is the return type + typedef _Result result_type; + }; + + /** + * This is one of the @link functors functor base classes@endlink. + */ + template + struct binary_function + { + /// @c first_argument_type is the type of the first argument + typedef _Arg1 first_argument_type; + + /// @c second_argument_type is the type of the second argument + typedef _Arg2 second_argument_type; + + /// @c result_type is the return type + typedef _Result result_type; + }; + /** @} */ + + // 20.3.2 arithmetic + /** @defgroup arithmetic_functors Arithmetic Classes + * @ingroup functors + * + * Because basic math often needs to be done during an algorithm, + * the library provides functors for those operations. See the + * documentation for @link functors the base classes@endlink + * for examples of their use. + * + * @{ + */ + +#if __cplusplus > 201103L + struct __is_transparent; // undefined + + template + struct plus; + + template + struct minus; + + template + struct multiplies; + + template + struct divides; + + template + struct modulus; + + template + struct negate; +#endif + + /// One of the @link arithmetic_functors math functors@endlink. + template + struct plus : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x + __y; } + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template + struct minus : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x - __y; } + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template + struct multiplies : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x * __y; } + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template + struct divides : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x / __y; } + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template + struct modulus : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x % __y; } + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template + struct negate : public unary_function<_Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x) const + { return -__x; } + }; + +#if __cplusplus > 201103L + +#define __cpp_lib_transparent_operators 201510 + + template<> + struct plus + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) + std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) + std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) + std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template<> + struct minus + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) - std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) - std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) - std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template<> + struct multiplies + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) * std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) * std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) * std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template<> + struct divides + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) / std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) / std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) / std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template<> + struct modulus + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) % std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) % std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) % std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link arithmetic_functors math functors@endlink. + template<> + struct negate + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t) const + noexcept(noexcept(-std::forward<_Tp>(__t))) + -> decltype(-std::forward<_Tp>(__t)) + { return -std::forward<_Tp>(__t); } + + typedef __is_transparent is_transparent; + }; +#endif + /** @} */ + + // 20.3.3 comparisons + /** @defgroup comparison_functors Comparison Classes + * @ingroup functors + * + * The library provides six wrapper functors for all the basic comparisons + * in C++, like @c <. + * + * @{ + */ +#if __cplusplus > 201103L + template + struct equal_to; + + template + struct not_equal_to; + + template + struct greater; + + template + struct less; + + template + struct greater_equal; + + template + struct less_equal; +#endif + + /// One of the @link comparison_functors comparison functors@endlink. + template + struct equal_to : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x == __y; } + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template + struct not_equal_to : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x != __y; } + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template + struct greater : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x > __y; } + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template + struct less : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x < __y; } + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template + struct greater_equal : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x >= __y; } + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template + struct less_equal : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x <= __y; } + }; + + // Partial specialization of std::greater for pointers. + template + struct greater<_Tp*> : public binary_function<_Tp*, _Tp*, bool> + { + _GLIBCXX14_CONSTEXPR bool + operator()(_Tp* __x, _Tp* __y) const _GLIBCXX_NOTHROW + { +#if __cplusplus >= 201402L +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + if (__builtin_is_constant_evaluated()) +#else + if (__builtin_constant_p(__x > __y)) +#endif + return __x > __y; +#endif + return (__UINTPTR_TYPE__)__x > (__UINTPTR_TYPE__)__y; + } + }; + + // Partial specialization of std::less for pointers. + template + struct less<_Tp*> : public binary_function<_Tp*, _Tp*, bool> + { + _GLIBCXX14_CONSTEXPR bool + operator()(_Tp* __x, _Tp* __y) const _GLIBCXX_NOTHROW + { +#if __cplusplus >= 201402L +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + if (__builtin_is_constant_evaluated()) +#else + if (__builtin_constant_p(__x < __y)) +#endif + return __x < __y; +#endif + return (__UINTPTR_TYPE__)__x < (__UINTPTR_TYPE__)__y; + } + }; + + // Partial specialization of std::greater_equal for pointers. + template + struct greater_equal<_Tp*> : public binary_function<_Tp*, _Tp*, bool> + { + _GLIBCXX14_CONSTEXPR bool + operator()(_Tp* __x, _Tp* __y) const _GLIBCXX_NOTHROW + { +#if __cplusplus >= 201402L +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + if (__builtin_is_constant_evaluated()) +#else + if (__builtin_constant_p(__x >= __y)) +#endif + return __x >= __y; +#endif + return (__UINTPTR_TYPE__)__x >= (__UINTPTR_TYPE__)__y; + } + }; + + // Partial specialization of std::less_equal for pointers. + template + struct less_equal<_Tp*> : public binary_function<_Tp*, _Tp*, bool> + { + _GLIBCXX14_CONSTEXPR bool + operator()(_Tp* __x, _Tp* __y) const _GLIBCXX_NOTHROW + { +#if __cplusplus >= 201402L +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + if (__builtin_is_constant_evaluated()) +#else + if (__builtin_constant_p(__x <= __y)) +#endif + return __x <= __y; +#endif + return (__UINTPTR_TYPE__)__x <= (__UINTPTR_TYPE__)__y; + } + }; + +#if __cplusplus >= 201402L + /// One of the @link comparison_functors comparison functors@endlink. + template<> + struct equal_to + { + template + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) == std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) == std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) == std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template<> + struct not_equal_to + { + template + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) != std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) != std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) != std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template<> + struct greater + { + template + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) > std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) > std::forward<_Up>(__u)) + { + return _S_cmp(std::forward<_Tp>(__t), std::forward<_Up>(__u), + __ptr_cmp<_Tp, _Up>{}); + } + + template + constexpr bool + operator()(_Tp* __t, _Up* __u) const noexcept + { return greater>{}(__t, __u); } + + typedef __is_transparent is_transparent; + + private: + template + static constexpr decltype(auto) + _S_cmp(_Tp&& __t, _Up&& __u, false_type) + { return std::forward<_Tp>(__t) > std::forward<_Up>(__u); } + + template + static constexpr bool + _S_cmp(_Tp&& __t, _Up&& __u, true_type) noexcept + { + return greater{}( + static_cast(std::forward<_Tp>(__t)), + static_cast(std::forward<_Up>(__u))); + } + + // True if there is no viable operator> member function. + template + struct __not_overloaded2 : true_type { }; + + // False if we can call T.operator>(U) + template + struct __not_overloaded2<_Tp, _Up, __void_t< + decltype(std::declval<_Tp>().operator>(std::declval<_Up>()))>> + : false_type { }; + + // True if there is no overloaded operator> for these operands. + template + struct __not_overloaded : __not_overloaded2<_Tp, _Up> { }; + + // False if we can call operator>(T,U) + template + struct __not_overloaded<_Tp, _Up, __void_t< + decltype(operator>(std::declval<_Tp>(), std::declval<_Up>()))>> + : false_type { }; + + template + using __ptr_cmp = __and_<__not_overloaded<_Tp, _Up>, + is_convertible<_Tp, const volatile void*>, + is_convertible<_Up, const volatile void*>>; + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template<> + struct less + { + template + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) < std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) < std::forward<_Up>(__u)) + { + return _S_cmp(std::forward<_Tp>(__t), std::forward<_Up>(__u), + __ptr_cmp<_Tp, _Up>{}); + } + + template + constexpr bool + operator()(_Tp* __t, _Up* __u) const noexcept + { return less>{}(__t, __u); } + + typedef __is_transparent is_transparent; + + private: + template + static constexpr decltype(auto) + _S_cmp(_Tp&& __t, _Up&& __u, false_type) + { return std::forward<_Tp>(__t) < std::forward<_Up>(__u); } + + template + static constexpr bool + _S_cmp(_Tp&& __t, _Up&& __u, true_type) noexcept + { + return less{}( + static_cast(std::forward<_Tp>(__t)), + static_cast(std::forward<_Up>(__u))); + } + + // True if there is no viable operator< member function. + template + struct __not_overloaded2 : true_type { }; + + // False if we can call T.operator<(U) + template + struct __not_overloaded2<_Tp, _Up, __void_t< + decltype(std::declval<_Tp>().operator<(std::declval<_Up>()))>> + : false_type { }; + + // True if there is no overloaded operator< for these operands. + template + struct __not_overloaded : __not_overloaded2<_Tp, _Up> { }; + + // False if we can call operator<(T,U) + template + struct __not_overloaded<_Tp, _Up, __void_t< + decltype(operator<(std::declval<_Tp>(), std::declval<_Up>()))>> + : false_type { }; + + template + using __ptr_cmp = __and_<__not_overloaded<_Tp, _Up>, + is_convertible<_Tp, const volatile void*>, + is_convertible<_Up, const volatile void*>>; + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template<> + struct greater_equal + { + template + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) >= std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) >= std::forward<_Up>(__u)) + { + return _S_cmp(std::forward<_Tp>(__t), std::forward<_Up>(__u), + __ptr_cmp<_Tp, _Up>{}); + } + + template + constexpr bool + operator()(_Tp* __t, _Up* __u) const noexcept + { return greater_equal>{}(__t, __u); } + + typedef __is_transparent is_transparent; + + private: + template + static constexpr decltype(auto) + _S_cmp(_Tp&& __t, _Up&& __u, false_type) + { return std::forward<_Tp>(__t) >= std::forward<_Up>(__u); } + + template + static constexpr bool + _S_cmp(_Tp&& __t, _Up&& __u, true_type) noexcept + { + return greater_equal{}( + static_cast(std::forward<_Tp>(__t)), + static_cast(std::forward<_Up>(__u))); + } + + // True if there is no viable operator>= member function. + template + struct __not_overloaded2 : true_type { }; + + // False if we can call T.operator>=(U) + template + struct __not_overloaded2<_Tp, _Up, __void_t< + decltype(std::declval<_Tp>().operator>=(std::declval<_Up>()))>> + : false_type { }; + + // True if there is no overloaded operator>= for these operands. + template + struct __not_overloaded : __not_overloaded2<_Tp, _Up> { }; + + // False if we can call operator>=(T,U) + template + struct __not_overloaded<_Tp, _Up, __void_t< + decltype(operator>=(std::declval<_Tp>(), std::declval<_Up>()))>> + : false_type { }; + + template + using __ptr_cmp = __and_<__not_overloaded<_Tp, _Up>, + is_convertible<_Tp, const volatile void*>, + is_convertible<_Up, const volatile void*>>; + }; + + /// One of the @link comparison_functors comparison functors@endlink. + template<> + struct less_equal + { + template + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) <= std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) <= std::forward<_Up>(__u)) + { + return _S_cmp(std::forward<_Tp>(__t), std::forward<_Up>(__u), + __ptr_cmp<_Tp, _Up>{}); + } + + template + constexpr bool + operator()(_Tp* __t, _Up* __u) const noexcept + { return less_equal>{}(__t, __u); } + + typedef __is_transparent is_transparent; + + private: + template + static constexpr decltype(auto) + _S_cmp(_Tp&& __t, _Up&& __u, false_type) + { return std::forward<_Tp>(__t) <= std::forward<_Up>(__u); } + + template + static constexpr bool + _S_cmp(_Tp&& __t, _Up&& __u, true_type) noexcept + { + return less_equal{}( + static_cast(std::forward<_Tp>(__t)), + static_cast(std::forward<_Up>(__u))); + } + + // True if there is no viable operator<= member function. + template + struct __not_overloaded2 : true_type { }; + + // False if we can call T.operator<=(U) + template + struct __not_overloaded2<_Tp, _Up, __void_t< + decltype(std::declval<_Tp>().operator<=(std::declval<_Up>()))>> + : false_type { }; + + // True if there is no overloaded operator<= for these operands. + template + struct __not_overloaded : __not_overloaded2<_Tp, _Up> { }; + + // False if we can call operator<=(T,U) + template + struct __not_overloaded<_Tp, _Up, __void_t< + decltype(operator<=(std::declval<_Tp>(), std::declval<_Up>()))>> + : false_type { }; + + template + using __ptr_cmp = __and_<__not_overloaded<_Tp, _Up>, + is_convertible<_Tp, const volatile void*>, + is_convertible<_Up, const volatile void*>>; + }; +#endif // C++14 + /** @} */ + + // 20.3.4 logical operations + /** @defgroup logical_functors Boolean Operations Classes + * @ingroup functors + * + * Here are wrapper functors for Boolean operations: @c &&, @c ||, + * and @c !. + * + * @{ + */ +#if __cplusplus > 201103L + template + struct logical_and; + + template + struct logical_or; + + template + struct logical_not; +#endif + + /// One of the @link logical_functors Boolean operations functors@endlink. + template + struct logical_and : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x && __y; } + }; + + /// One of the @link logical_functors Boolean operations functors@endlink. + template + struct logical_or : public binary_function<_Tp, _Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x, const _Tp& __y) const + { return __x || __y; } + }; + + /// One of the @link logical_functors Boolean operations functors@endlink. + template + struct logical_not : public unary_function<_Tp, bool> + { + _GLIBCXX14_CONSTEXPR + bool + operator()(const _Tp& __x) const + { return !__x; } + }; + +#if __cplusplus > 201103L + /// One of the @link logical_functors Boolean operations functors@endlink. + template<> + struct logical_and + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) && std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) && std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) && std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link logical_functors Boolean operations functors@endlink. + template<> + struct logical_or + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) || std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) || std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) || std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + /// One of the @link logical_functors Boolean operations functors@endlink. + template<> + struct logical_not + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t) const + noexcept(noexcept(!std::forward<_Tp>(__t))) + -> decltype(!std::forward<_Tp>(__t)) + { return !std::forward<_Tp>(__t); } + + typedef __is_transparent is_transparent; + }; +#endif + /** @} */ + +#if __cplusplus > 201103L + template + struct bit_and; + + template + struct bit_or; + + template + struct bit_xor; + + template + struct bit_not; +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 660. Missing Bitwise Operations. + template + struct bit_and : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x & __y; } + }; + + template + struct bit_or : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x | __y; } + }; + + template + struct bit_xor : public binary_function<_Tp, _Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x, const _Tp& __y) const + { return __x ^ __y; } + }; + + template + struct bit_not : public unary_function<_Tp, _Tp> + { + _GLIBCXX14_CONSTEXPR + _Tp + operator()(const _Tp& __x) const + { return ~__x; } + }; + +#if __cplusplus > 201103L + template <> + struct bit_and + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) & std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) & std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) & std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + template <> + struct bit_or + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) | std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) | std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) | std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + template <> + struct bit_xor + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::forward<_Tp>(__t) ^ std::forward<_Up>(__u))) + -> decltype(std::forward<_Tp>(__t) ^ std::forward<_Up>(__u)) + { return std::forward<_Tp>(__t) ^ std::forward<_Up>(__u); } + + typedef __is_transparent is_transparent; + }; + + template <> + struct bit_not + { + template + _GLIBCXX14_CONSTEXPR + auto + operator()(_Tp&& __t) const + noexcept(noexcept(~std::forward<_Tp>(__t))) + -> decltype(~std::forward<_Tp>(__t)) + { return ~std::forward<_Tp>(__t); } + + typedef __is_transparent is_transparent; + }; +#endif + + // 20.3.5 negators + /** @defgroup negators Negators + * @ingroup functors + * + * The functions @c not1 and @c not2 each take a predicate functor + * and return an instance of @c unary_negate or + * @c binary_negate, respectively. These classes are functors whose + * @c operator() performs the stored predicate function and then returns + * the negation of the result. + * + * For example, given a vector of integers and a trivial predicate, + * \code + * struct IntGreaterThanThree + * : public std::unary_function + * { + * bool operator() (int x) { return x > 3; } + * }; + * + * std::find_if (v.begin(), v.end(), not1(IntGreaterThanThree())); + * \endcode + * The call to @c find_if will locate the first index (i) of @c v for which + * !(v[i] > 3) is true. + * + * The not1/unary_negate combination works on predicates taking a single + * argument. The not2/binary_negate combination works on predicates which + * take two arguments. + * + * @{ + */ + /// One of the @link negators negation functors@endlink. + template + class unary_negate + : public unary_function + { + protected: + _Predicate _M_pred; + + public: + _GLIBCXX14_CONSTEXPR + explicit + unary_negate(const _Predicate& __x) : _M_pred(__x) { } + + _GLIBCXX14_CONSTEXPR + bool + operator()(const typename _Predicate::argument_type& __x) const + { return !_M_pred(__x); } + }; + + /// One of the @link negators negation functors@endlink. + template + _GLIBCXX14_CONSTEXPR + inline unary_negate<_Predicate> + not1(const _Predicate& __pred) + { return unary_negate<_Predicate>(__pred); } + + /// One of the @link negators negation functors@endlink. + template + class binary_negate + : public binary_function + { + protected: + _Predicate _M_pred; + + public: + _GLIBCXX14_CONSTEXPR + explicit + binary_negate(const _Predicate& __x) : _M_pred(__x) { } + + _GLIBCXX14_CONSTEXPR + bool + operator()(const typename _Predicate::first_argument_type& __x, + const typename _Predicate::second_argument_type& __y) const + { return !_M_pred(__x, __y); } + }; + + /// One of the @link negators negation functors@endlink. + template + _GLIBCXX14_CONSTEXPR + inline binary_negate<_Predicate> + not2(const _Predicate& __pred) + { return binary_negate<_Predicate>(__pred); } + /** @} */ + + // 20.3.7 adaptors pointers functions + /** @defgroup pointer_adaptors Adaptors for pointers to functions + * @ingroup functors + * + * The advantage of function objects over pointers to functions is that + * the objects in the standard library declare nested typedefs describing + * their argument and result types with uniform names (e.g., @c result_type + * from the base classes @c unary_function and @c binary_function). + * Sometimes those typedefs are required, not just optional. + * + * Adaptors are provided to turn pointers to unary (single-argument) and + * binary (double-argument) functions into function objects. The + * long-winded functor @c pointer_to_unary_function is constructed with a + * function pointer @c f, and its @c operator() called with argument @c x + * returns @c f(x). The functor @c pointer_to_binary_function does the same + * thing, but with a double-argument @c f and @c operator(). + * + * The function @c ptr_fun takes a pointer-to-function @c f and constructs + * an instance of the appropriate functor. + * + * @{ + */ + /// One of the @link pointer_adaptors adaptors for function pointers@endlink. + template + class pointer_to_unary_function : public unary_function<_Arg, _Result> + { + protected: + _Result (*_M_ptr)(_Arg); + + public: + pointer_to_unary_function() { } + + explicit + pointer_to_unary_function(_Result (*__x)(_Arg)) + : _M_ptr(__x) { } + + _Result + operator()(_Arg __x) const + { return _M_ptr(__x); } + }; + + /// One of the @link pointer_adaptors adaptors for function pointers@endlink. + template + inline pointer_to_unary_function<_Arg, _Result> + ptr_fun(_Result (*__x)(_Arg)) + { return pointer_to_unary_function<_Arg, _Result>(__x); } + + /// One of the @link pointer_adaptors adaptors for function pointers@endlink. + template + class pointer_to_binary_function + : public binary_function<_Arg1, _Arg2, _Result> + { + protected: + _Result (*_M_ptr)(_Arg1, _Arg2); + + public: + pointer_to_binary_function() { } + + explicit + pointer_to_binary_function(_Result (*__x)(_Arg1, _Arg2)) + : _M_ptr(__x) { } + + _Result + operator()(_Arg1 __x, _Arg2 __y) const + { return _M_ptr(__x, __y); } + }; + + /// One of the @link pointer_adaptors adaptors for function pointers@endlink. + template + inline pointer_to_binary_function<_Arg1, _Arg2, _Result> + ptr_fun(_Result (*__x)(_Arg1, _Arg2)) + { return pointer_to_binary_function<_Arg1, _Arg2, _Result>(__x); } + /** @} */ + + template + struct _Identity + : public unary_function<_Tp, _Tp> + { + _Tp& + operator()(_Tp& __x) const + { return __x; } + + const _Tp& + operator()(const _Tp& __x) const + { return __x; } + }; + + // Partial specialization, avoids confusing errors in e.g. std::set. + template struct _Identity : _Identity<_Tp> { }; + + template + struct _Select1st + : public unary_function<_Pair, typename _Pair::first_type> + { + typename _Pair::first_type& + operator()(_Pair& __x) const + { return __x.first; } + + const typename _Pair::first_type& + operator()(const _Pair& __x) const + { return __x.first; } + +#if __cplusplus >= 201103L + template + typename _Pair2::first_type& + operator()(_Pair2& __x) const + { return __x.first; } + + template + const typename _Pair2::first_type& + operator()(const _Pair2& __x) const + { return __x.first; } +#endif + }; + + template + struct _Select2nd + : public unary_function<_Pair, typename _Pair::second_type> + { + typename _Pair::second_type& + operator()(_Pair& __x) const + { return __x.second; } + + const typename _Pair::second_type& + operator()(const _Pair& __x) const + { return __x.second; } + }; + + // 20.3.8 adaptors pointers members + /** @defgroup memory_adaptors Adaptors for pointers to members + * @ingroup functors + * + * There are a total of 8 = 2^3 function objects in this family. + * (1) Member functions taking no arguments vs member functions taking + * one argument. + * (2) Call through pointer vs call through reference. + * (3) Const vs non-const member function. + * + * All of this complexity is in the function objects themselves. You can + * ignore it by using the helper function mem_fun and mem_fun_ref, + * which create whichever type of adaptor is appropriate. + * + * @{ + */ + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class mem_fun_t : public unary_function<_Tp*, _Ret> + { + public: + explicit + mem_fun_t(_Ret (_Tp::*__pf)()) + : _M_f(__pf) { } + + _Ret + operator()(_Tp* __p) const + { return (__p->*_M_f)(); } + + private: + _Ret (_Tp::*_M_f)(); + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class const_mem_fun_t : public unary_function + { + public: + explicit + const_mem_fun_t(_Ret (_Tp::*__pf)() const) + : _M_f(__pf) { } + + _Ret + operator()(const _Tp* __p) const + { return (__p->*_M_f)(); } + + private: + _Ret (_Tp::*_M_f)() const; + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class mem_fun_ref_t : public unary_function<_Tp, _Ret> + { + public: + explicit + mem_fun_ref_t(_Ret (_Tp::*__pf)()) + : _M_f(__pf) { } + + _Ret + operator()(_Tp& __r) const + { return (__r.*_M_f)(); } + + private: + _Ret (_Tp::*_M_f)(); + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class const_mem_fun_ref_t : public unary_function<_Tp, _Ret> + { + public: + explicit + const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const) + : _M_f(__pf) { } + + _Ret + operator()(const _Tp& __r) const + { return (__r.*_M_f)(); } + + private: + _Ret (_Tp::*_M_f)() const; + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class mem_fun1_t : public binary_function<_Tp*, _Arg, _Ret> + { + public: + explicit + mem_fun1_t(_Ret (_Tp::*__pf)(_Arg)) + : _M_f(__pf) { } + + _Ret + operator()(_Tp* __p, _Arg __x) const + { return (__p->*_M_f)(__x); } + + private: + _Ret (_Tp::*_M_f)(_Arg); + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class const_mem_fun1_t : public binary_function + { + public: + explicit + const_mem_fun1_t(_Ret (_Tp::*__pf)(_Arg) const) + : _M_f(__pf) { } + + _Ret + operator()(const _Tp* __p, _Arg __x) const + { return (__p->*_M_f)(__x); } + + private: + _Ret (_Tp::*_M_f)(_Arg) const; + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class mem_fun1_ref_t : public binary_function<_Tp, _Arg, _Ret> + { + public: + explicit + mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg)) + : _M_f(__pf) { } + + _Ret + operator()(_Tp& __r, _Arg __x) const + { return (__r.*_M_f)(__x); } + + private: + _Ret (_Tp::*_M_f)(_Arg); + }; + + /// One of the @link memory_adaptors adaptors for member + /// pointers@endlink. + template + class const_mem_fun1_ref_t : public binary_function<_Tp, _Arg, _Ret> + { + public: + explicit + const_mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg) const) + : _M_f(__pf) { } + + _Ret + operator()(const _Tp& __r, _Arg __x) const + { return (__r.*_M_f)(__x); } + + private: + _Ret (_Tp::*_M_f)(_Arg) const; + }; + + // Mem_fun adaptor helper functions. There are only two: + // mem_fun and mem_fun_ref. + template + inline mem_fun_t<_Ret, _Tp> + mem_fun(_Ret (_Tp::*__f)()) + { return mem_fun_t<_Ret, _Tp>(__f); } + + template + inline const_mem_fun_t<_Ret, _Tp> + mem_fun(_Ret (_Tp::*__f)() const) + { return const_mem_fun_t<_Ret, _Tp>(__f); } + + template + inline mem_fun_ref_t<_Ret, _Tp> + mem_fun_ref(_Ret (_Tp::*__f)()) + { return mem_fun_ref_t<_Ret, _Tp>(__f); } + + template + inline const_mem_fun_ref_t<_Ret, _Tp> + mem_fun_ref(_Ret (_Tp::*__f)() const) + { return const_mem_fun_ref_t<_Ret, _Tp>(__f); } + + template + inline mem_fun1_t<_Ret, _Tp, _Arg> + mem_fun(_Ret (_Tp::*__f)(_Arg)) + { return mem_fun1_t<_Ret, _Tp, _Arg>(__f); } + + template + inline const_mem_fun1_t<_Ret, _Tp, _Arg> + mem_fun(_Ret (_Tp::*__f)(_Arg) const) + { return const_mem_fun1_t<_Ret, _Tp, _Arg>(__f); } + + template + inline mem_fun1_ref_t<_Ret, _Tp, _Arg> + mem_fun_ref(_Ret (_Tp::*__f)(_Arg)) + { return mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); } + + template + inline const_mem_fun1_ref_t<_Ret, _Tp, _Arg> + mem_fun_ref(_Ret (_Tp::*__f)(_Arg) const) + { return const_mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); } + + /** @} */ + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#if (__cplusplus < 201103L) || _GLIBCXX_USE_DEPRECATED +# include +#endif + +#endif /* _STL_FUNCTION_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_heap.h b/resources/sources/avr-libstdcpp/include/bits/stl_heap.h new file mode 100644 index 000000000..52e3a3b44 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_heap.h @@ -0,0 +1,583 @@ +// Heap implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * Copyright (c) 1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_heap.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{queue} + */ + +#ifndef _STL_HEAP_H +#define _STL_HEAP_H 1 + +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup heap_algorithms Heap + * @ingroup sorting_algorithms + */ + + template + _GLIBCXX20_CONSTEXPR + _Distance + __is_heap_until(_RandomAccessIterator __first, _Distance __n, + _Compare& __comp) + { + _Distance __parent = 0; + for (_Distance __child = 1; __child < __n; ++__child) + { + if (__comp(__first + __parent, __first + __child)) + return __child; + if ((__child & 1) == 0) + ++__parent; + } + return __n; + } + + // __is_heap, a predicate testing whether or not a range is a heap. + // This function is an extension, not part of the C++ standard. + template + _GLIBCXX20_CONSTEXPR + inline bool + __is_heap(_RandomAccessIterator __first, _Distance __n) + { + __gnu_cxx::__ops::_Iter_less_iter __comp; + return std::__is_heap_until(__first, __n, __comp) == __n; + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __is_heap(_RandomAccessIterator __first, _Compare __comp, _Distance __n) + { + typedef __decltype(__comp) _Cmp; + __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(_GLIBCXX_MOVE(__comp)); + return std::__is_heap_until(__first, __n, __cmp) == __n; + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { return std::__is_heap(__first, std::distance(__first, __last)); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + return std::__is_heap(__first, _GLIBCXX_MOVE(__comp), + std::distance(__first, __last)); + } + + // Heap-manipulation functions: push_heap, pop_heap, make_heap, sort_heap, + // + is_heap and is_heap_until in C++0x. + + template + _GLIBCXX20_CONSTEXPR + void + __push_heap(_RandomAccessIterator __first, + _Distance __holeIndex, _Distance __topIndex, _Tp __value, + _Compare& __comp) + { + _Distance __parent = (__holeIndex - 1) / 2; + while (__holeIndex > __topIndex && __comp(__first + __parent, __value)) + { + *(__first + __holeIndex) = _GLIBCXX_MOVE(*(__first + __parent)); + __holeIndex = __parent; + __parent = (__holeIndex - 1) / 2; + } + *(__first + __holeIndex) = _GLIBCXX_MOVE(__value); + } + + /** + * @brief Push an element onto a heap. + * @param __first Start of heap. + * @param __last End of heap + element. + * @ingroup heap_algorithms + * + * This operation pushes the element at last-1 onto the valid heap + * over the range [__first,__last-1). After completion, + * [__first,__last) is a valid heap. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _ValueType; + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _DistanceType; + + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept<_ValueType>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + __glibcxx_requires_heap(__first, __last - 1); + + __gnu_cxx::__ops::_Iter_less_val __comp; + _ValueType __value = _GLIBCXX_MOVE(*(__last - 1)); + std::__push_heap(__first, _DistanceType((__last - __first) - 1), + _DistanceType(0), _GLIBCXX_MOVE(__value), __comp); + } + + /** + * @brief Push an element onto a heap using comparison functor. + * @param __first Start of heap. + * @param __last End of heap + element. + * @param __comp Comparison functor. + * @ingroup heap_algorithms + * + * This operation pushes the element at __last-1 onto the valid + * heap over the range [__first,__last-1). After completion, + * [__first,__last) is a valid heap. Compare operations are + * performed using comp. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _ValueType; + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _DistanceType; + + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + __glibcxx_requires_heap_pred(__first, __last - 1, __comp); + + __decltype(__gnu_cxx::__ops::__iter_comp_val(_GLIBCXX_MOVE(__comp))) + __cmp(_GLIBCXX_MOVE(__comp)); + _ValueType __value = _GLIBCXX_MOVE(*(__last - 1)); + std::__push_heap(__first, _DistanceType((__last - __first) - 1), + _DistanceType(0), _GLIBCXX_MOVE(__value), __cmp); + } + + template + _GLIBCXX20_CONSTEXPR + void + __adjust_heap(_RandomAccessIterator __first, _Distance __holeIndex, + _Distance __len, _Tp __value, _Compare __comp) + { + const _Distance __topIndex = __holeIndex; + _Distance __secondChild = __holeIndex; + while (__secondChild < (__len - 1) / 2) + { + __secondChild = 2 * (__secondChild + 1); + if (__comp(__first + __secondChild, + __first + (__secondChild - 1))) + __secondChild--; + *(__first + __holeIndex) = _GLIBCXX_MOVE(*(__first + __secondChild)); + __holeIndex = __secondChild; + } + if ((__len & 1) == 0 && __secondChild == (__len - 2) / 2) + { + __secondChild = 2 * (__secondChild + 1); + *(__first + __holeIndex) = _GLIBCXX_MOVE(*(__first + + (__secondChild - 1))); + __holeIndex = __secondChild - 1; + } + __decltype(__gnu_cxx::__ops::__iter_comp_val(_GLIBCXX_MOVE(__comp))) + __cmp(_GLIBCXX_MOVE(__comp)); + std::__push_heap(__first, __holeIndex, __topIndex, + _GLIBCXX_MOVE(__value), __cmp); + } + + template + _GLIBCXX20_CONSTEXPR + inline void + __pop_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _RandomAccessIterator __result, _Compare& __comp) + { + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _ValueType; + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _DistanceType; + + _ValueType __value = _GLIBCXX_MOVE(*__result); + *__result = _GLIBCXX_MOVE(*__first); + std::__adjust_heap(__first, _DistanceType(0), + _DistanceType(__last - __first), + _GLIBCXX_MOVE(__value), __comp); + } + + /** + * @brief Pop an element off a heap. + * @param __first Start of heap. + * @param __last End of heap. + * @pre [__first, __last) is a valid, non-empty range. + * @ingroup heap_algorithms + * + * This operation pops the top of the heap. The elements __first + * and __last-1 are swapped and [__first,__last-1) is made into a + * heap. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + pop_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_non_empty_range(__first, __last); + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + __glibcxx_requires_heap(__first, __last); + + if (__last - __first > 1) + { + --__last; + __gnu_cxx::__ops::_Iter_less_iter __comp; + std::__pop_heap(__first, __last, __last, __comp); + } + } + + /** + * @brief Pop an element off a heap using comparison functor. + * @param __first Start of heap. + * @param __last End of heap. + * @param __comp Comparison functor to use. + * @ingroup heap_algorithms + * + * This operation pops the top of the heap. The elements __first + * and __last-1 are swapped and [__first,__last-1) is made into a + * heap. Comparisons are made using comp. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + pop_heap(_RandomAccessIterator __first, + _RandomAccessIterator __last, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + __glibcxx_requires_non_empty_range(__first, __last); + __glibcxx_requires_heap_pred(__first, __last, __comp); + + if (__last - __first > 1) + { + typedef __decltype(__comp) _Cmp; + __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(_GLIBCXX_MOVE(__comp)); + --__last; + std::__pop_heap(__first, __last, __last, __cmp); + } + } + + template + _GLIBCXX20_CONSTEXPR + void + __make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare& __comp) + { + typedef typename iterator_traits<_RandomAccessIterator>::value_type + _ValueType; + typedef typename iterator_traits<_RandomAccessIterator>::difference_type + _DistanceType; + + if (__last - __first < 2) + return; + + const _DistanceType __len = __last - __first; + _DistanceType __parent = (__len - 2) / 2; + while (true) + { + _ValueType __value = _GLIBCXX_MOVE(*(__first + __parent)); + std::__adjust_heap(__first, __parent, __len, _GLIBCXX_MOVE(__value), + __comp); + if (__parent == 0) + return; + __parent--; + } + } + + /** + * @brief Construct a heap over a range. + * @param __first Start of heap. + * @param __last End of heap. + * @ingroup heap_algorithms + * + * This operation makes the elements in [__first,__last) into a heap. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + __gnu_cxx::__ops::_Iter_less_iter __comp; + std::__make_heap(__first, __last, __comp); + } + + /** + * @brief Construct a heap over a range using comparison functor. + * @param __first Start of heap. + * @param __last End of heap. + * @param __comp Comparison functor to use. + * @ingroup heap_algorithms + * + * This operation makes the elements in [__first,__last) into a heap. + * Comparisons are made using __comp. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + typedef __decltype(__comp) _Cmp; + __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(_GLIBCXX_MOVE(__comp)); + std::__make_heap(__first, __last, __cmp); + } + + template + _GLIBCXX20_CONSTEXPR + void + __sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare& __comp) + { + while (__last - __first > 1) + { + --__last; + std::__pop_heap(__first, __last, __last, __comp); + } + } + + /** + * @brief Sort a heap. + * @param __first Start of heap. + * @param __last End of heap. + * @ingroup heap_algorithms + * + * This operation sorts the valid heap in the range [__first,__last). + */ + template + _GLIBCXX20_CONSTEXPR + inline void + sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + __glibcxx_requires_heap(__first, __last); + + __gnu_cxx::__ops::_Iter_less_iter __comp; + std::__sort_heap(__first, __last, __comp); + } + + /** + * @brief Sort a heap using comparison functor. + * @param __first Start of heap. + * @param __last End of heap. + * @param __comp Comparison functor to use. + * @ingroup heap_algorithms + * + * This operation sorts the valid heap in the range [__first,__last). + * Comparisons are made using __comp. + */ + template + _GLIBCXX20_CONSTEXPR + inline void + sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + __glibcxx_requires_heap_pred(__first, __last, __comp); + + typedef __decltype(__comp) _Cmp; + __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(_GLIBCXX_MOVE(__comp)); + std::__sort_heap(__first, __last, __cmp); + } + +#if __cplusplus >= 201103L + /** + * @brief Search the end of a heap. + * @param __first Start of range. + * @param __last End of range. + * @return An iterator pointing to the first element not in the heap. + * @ingroup heap_algorithms + * + * This operation returns the last iterator i in [__first, __last) for which + * the range [__first, i) is a heap. + */ + template + _GLIBCXX20_CONSTEXPR + inline _RandomAccessIterator + is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive(__first, __last); + + __gnu_cxx::__ops::_Iter_less_iter __comp; + return __first + + std::__is_heap_until(__first, std::distance(__first, __last), __comp); + } + + /** + * @brief Search the end of a heap using comparison functor. + * @param __first Start of range. + * @param __last End of range. + * @param __comp Comparison functor to use. + * @return An iterator pointing to the first element not in the heap. + * @ingroup heap_algorithms + * + * This operation returns the last iterator i in [__first, __last) for which + * the range [__first, i) is a heap. Comparisons are made using __comp. + */ + template + _GLIBCXX20_CONSTEXPR + inline _RandomAccessIterator + is_heap_until(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + typedef __decltype(__comp) _Cmp; + __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(_GLIBCXX_MOVE(__comp)); + return __first + + std::__is_heap_until(__first, std::distance(__first, __last), __cmp); + } + + /** + * @brief Determines whether a range is a heap. + * @param __first Start of range. + * @param __last End of range. + * @return True if range is a heap, false otherwise. + * @ingroup heap_algorithms + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { return std::is_heap_until(__first, __last) == __last; } + + /** + * @brief Determines whether a range is a heap using comparison functor. + * @param __first Start of range. + * @param __last End of range. + * @param __comp Comparison functor to use. + * @return True if range is a heap, false otherwise. + * @ingroup heap_algorithms + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_irreflexive_pred(__first, __last, __comp); + + const auto __dist = std::distance(__first, __last); + typedef __decltype(__comp) _Cmp; + __gnu_cxx::__ops::_Iter_comp_iter<_Cmp> __cmp(_GLIBCXX_MOVE(__comp)); + return std::__is_heap_until(__first, __dist, __cmp) == __dist; + } +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_HEAP_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_iterator.h b/resources/sources/avr-libstdcpp/include/bits/stl_iterator.h new file mode 100644 index 000000000..7d293ce3f --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_iterator.h @@ -0,0 +1,2238 @@ +// Iterators -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_iterator.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + * + * This file implements reverse_iterator, back_insert_iterator, + * front_insert_iterator, insert_iterator, __normal_iterator, and their + * supporting functions and overloaded operators. + */ + +#ifndef _STL_ITERATOR_H +#define _STL_ITERATOR_H 1 + +#include +#include +#include +#include +#include + +#if __cplusplus >= 201103L +# include +#endif + +#if __cplusplus > 201703L +# define __cpp_lib_array_constexpr 201811L +# define __cpp_lib_constexpr_iterator 201811L +#elif __cplusplus == 201703L +# define __cpp_lib_array_constexpr 201803L +#endif + +#if __cplusplus > 201703L +# include +# include +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup iterators + * @{ + */ + +#if __cplusplus > 201703L && __cpp_lib_concepts + namespace __detail + { + // Weaken iterator_category _Cat to _Limit if it is derived from that, + // otherwise use _Otherwise. + template + using __clamp_iter_cat + = conditional_t, _Limit, _Otherwise>; + } +#endif + + // 24.4.1 Reverse iterators + /** + * Bidirectional and random access iterators have corresponding reverse + * %iterator adaptors that iterate through the data structure in the + * opposite direction. They have the same signatures as the corresponding + * iterators. The fundamental relation between a reverse %iterator and its + * corresponding %iterator @c i is established by the identity: + * @code + * &*(reverse_iterator(i)) == &*(i - 1) + * @endcode + * + * This mapping is dictated by the fact that while there is always a + * pointer past the end of an array, there might not be a valid pointer + * before the beginning of an array. [24.4.1]/1,2 + * + * Reverse iterators can be tricky and surprising at first. Their + * semantics make sense, however, and the trickiness is a side effect of + * the requirement that the iterators must be safe. + */ + template + class reverse_iterator + : public iterator::iterator_category, + typename iterator_traits<_Iterator>::value_type, + typename iterator_traits<_Iterator>::difference_type, + typename iterator_traits<_Iterator>::pointer, + typename iterator_traits<_Iterator>::reference> + { + protected: + _Iterator current; + + typedef iterator_traits<_Iterator> __traits_type; + + public: + typedef _Iterator iterator_type; + typedef typename __traits_type::difference_type difference_type; + typedef typename __traits_type::pointer pointer; + typedef typename __traits_type::reference reference; + +#if __cplusplus > 201703L && __cpp_lib_concepts + using iterator_concept + = conditional_t, + random_access_iterator_tag, + bidirectional_iterator_tag>; + using iterator_category + = __detail::__clamp_iter_cat; +#endif + + /** + * The default constructor value-initializes member @p current. + * If it is a pointer, that means it is zero-initialized. + */ + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 235 No specification of default ctor for reverse_iterator + // 1012. reverse_iterator default ctor should value initialize + _GLIBCXX17_CONSTEXPR + reverse_iterator() : current() { } + + /** + * This %iterator will move in the opposite direction that @p x does. + */ + explicit _GLIBCXX17_CONSTEXPR + reverse_iterator(iterator_type __x) : current(__x) { } + + /** + * The copy constructor is normal. + */ + _GLIBCXX17_CONSTEXPR + reverse_iterator(const reverse_iterator& __x) + : current(__x.current) { } + +#if __cplusplus >= 201103L + reverse_iterator& operator=(const reverse_iterator&) = default; +#endif + + /** + * A %reverse_iterator across other types can be copied if the + * underlying %iterator can be converted to the type of @c current. + */ + template + _GLIBCXX17_CONSTEXPR + reverse_iterator(const reverse_iterator<_Iter>& __x) + : current(__x.base()) { } + + /** + * @return @c current, the %iterator used for underlying work. + */ + _GLIBCXX17_CONSTEXPR iterator_type + base() const + { return current; } + + /** + * @return A reference to the value at @c --current + * + * This requires that @c --current is dereferenceable. + * + * @warning This implementation requires that for an iterator of the + * underlying iterator type, @c x, a reference obtained by + * @c *x remains valid after @c x has been modified or + * destroyed. This is a bug: http://gcc.gnu.org/PR51823 + */ + _GLIBCXX17_CONSTEXPR reference + operator*() const + { + _Iterator __tmp = current; + return *--__tmp; + } + + /** + * @return A pointer to the value at @c --current + * + * This requires that @c --current is dereferenceable. + */ + _GLIBCXX17_CONSTEXPR pointer + operator->() const +#if __cplusplus > 201703L && __cpp_concepts >= 201907L + requires is_pointer_v<_Iterator> + || requires(const _Iterator __i) { __i.operator->(); } +#endif + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 1052. operator-> should also support smart pointers + _Iterator __tmp = current; + --__tmp; + return _S_to_pointer(__tmp); + } + + /** + * @return @c *this + * + * Decrements the underlying iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator& + operator++() + { + --current; + return *this; + } + + /** + * @return The original value of @c *this + * + * Decrements the underlying iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator + operator++(int) + { + reverse_iterator __tmp = *this; + --current; + return __tmp; + } + + /** + * @return @c *this + * + * Increments the underlying iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator& + operator--() + { + ++current; + return *this; + } + + /** + * @return A reverse_iterator with the previous value of @c *this + * + * Increments the underlying iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator + operator--(int) + { + reverse_iterator __tmp = *this; + ++current; + return __tmp; + } + + /** + * @return A reverse_iterator that refers to @c current - @a __n + * + * The underlying iterator must be a Random Access Iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator + operator+(difference_type __n) const + { return reverse_iterator(current - __n); } + + /** + * @return *this + * + * Moves the underlying iterator backwards @a __n steps. + * The underlying iterator must be a Random Access Iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator& + operator+=(difference_type __n) + { + current -= __n; + return *this; + } + + /** + * @return A reverse_iterator that refers to @c current - @a __n + * + * The underlying iterator must be a Random Access Iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator + operator-(difference_type __n) const + { return reverse_iterator(current + __n); } + + /** + * @return *this + * + * Moves the underlying iterator forwards @a __n steps. + * The underlying iterator must be a Random Access Iterator. + */ + _GLIBCXX17_CONSTEXPR reverse_iterator& + operator-=(difference_type __n) + { + current += __n; + return *this; + } + + /** + * @return The value at @c current - @a __n - 1 + * + * The underlying iterator must be a Random Access Iterator. + */ + _GLIBCXX17_CONSTEXPR reference + operator[](difference_type __n) const + { return *(*this + __n); } + +#if __cplusplus > 201703L && __cpp_lib_concepts + friend constexpr iter_rvalue_reference_t<_Iterator> + iter_move(const reverse_iterator& __i) + noexcept(is_nothrow_copy_constructible_v<_Iterator> + && noexcept(ranges::iter_move(--std::declval<_Iterator&>()))) + { + auto __tmp = __i.base(); + return ranges::iter_move(--__tmp); + } + + template _Iter2> + friend constexpr void + iter_swap(const reverse_iterator& __x, + const reverse_iterator<_Iter2>& __y) + noexcept(is_nothrow_copy_constructible_v<_Iterator> + && is_nothrow_copy_constructible_v<_Iter2> + && noexcept(ranges::iter_swap(--std::declval<_Iterator&>(), + --std::declval<_Iter2&>()))) + { + auto __xtmp = __x.base(); + auto __ytmp = __y.base(); + ranges::iter_swap(--__xtmp, --__ytmp); + } +#endif + + private: + template + static _GLIBCXX17_CONSTEXPR _Tp* + _S_to_pointer(_Tp* __p) + { return __p; } + + template + static _GLIBCXX17_CONSTEXPR pointer + _S_to_pointer(_Tp __t) + { return __t.operator->(); } + }; + + //@{ + /** + * @param __x A %reverse_iterator. + * @param __y A %reverse_iterator. + * @return A simple bool. + * + * Reverse iterators forward comparisons to their underlying base() + * iterators. + * + */ +#if __cplusplus <= 201703L || ! defined __cpp_lib_concepts + template + inline _GLIBCXX17_CONSTEXPR bool + operator==(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return __x.base() == __y.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return __y.base() < __x.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator!=(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return !(__x == __y); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return __y < __x; } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<=(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return !(__y < __x); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>=(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return !(__x < __y); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 280. Comparison of reverse_iterator to const reverse_iterator. + template + inline _GLIBCXX17_CONSTEXPR bool + operator==(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return __x.base() == __y.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return __y.base() < __x.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator!=(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return !(__x == __y); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return __y < __x; } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<=(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return !(__y < __x); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>=(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return !(__x < __y); } +#else // C++20 + template + constexpr bool + operator==(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + requires requires { { __x.base() == __y.base() } -> convertible_to; } + { return __x.base() == __y.base(); } + + template + constexpr bool + operator!=(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + requires requires { { __x.base() != __y.base() } -> convertible_to; } + { return __x.base() != __y.base(); } + + template + constexpr bool + operator<(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + requires requires { { __x.base() > __y.base() } -> convertible_to; } + { return __x.base() > __y.base(); } + + template + constexpr bool + operator>(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + requires requires { { __x.base() < __y.base() } -> convertible_to; } + { return __x.base() < __y.base(); } + + template + constexpr bool + operator<=(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + requires requires { { __x.base() >= __y.base() } -> convertible_to; } + { return __x.base() >= __y.base(); } + + template + constexpr bool + operator>=(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + requires requires { { __x.base() <= __y.base() } -> convertible_to; } + { return __x.base() <= __y.base(); } + + template _IteratorR> + constexpr compare_three_way_result_t<_IteratorL, _IteratorR> + operator<=>(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return __y.base() <=> __x.base(); } +#endif // C++20 + //@} + +#if __cplusplus < 201103L + template + inline typename reverse_iterator<_Iterator>::difference_type + operator-(const reverse_iterator<_Iterator>& __x, + const reverse_iterator<_Iterator>& __y) + { return __y.base() - __x.base(); } + + template + inline typename reverse_iterator<_IteratorL>::difference_type + operator-(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + { return __y.base() - __x.base(); } +#else + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 685. reverse_iterator/move_iterator difference has invalid signatures + template + inline _GLIBCXX17_CONSTEXPR auto + operator-(const reverse_iterator<_IteratorL>& __x, + const reverse_iterator<_IteratorR>& __y) + -> decltype(__y.base() - __x.base()) + { return __y.base() - __x.base(); } +#endif + + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Iterator> + operator+(typename reverse_iterator<_Iterator>::difference_type __n, + const reverse_iterator<_Iterator>& __x) + { return reverse_iterator<_Iterator>(__x.base() - __n); } + +#if __cplusplus >= 201103L + // Same as C++14 make_reverse_iterator but used in C++11 mode too. + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Iterator> + __make_reverse_iterator(_Iterator __i) + { return reverse_iterator<_Iterator>(__i); } + +# if __cplusplus >= 201402L +# define __cpp_lib_make_reverse_iterator 201402 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 2285. make_reverse_iterator + /// Generator function for reverse_iterator. + template + inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Iterator> + make_reverse_iterator(_Iterator __i) + { return reverse_iterator<_Iterator>(__i); } + +# if __cplusplus > 201703L && defined __cpp_lib_concepts + template + requires (!sized_sentinel_for<_Iterator1, _Iterator2>) + inline constexpr bool + disable_sized_sentinel_for, + reverse_iterator<_Iterator2>> = true; +# endif // C++20 +# endif // C++14 + + template + _GLIBCXX20_CONSTEXPR + auto + __niter_base(reverse_iterator<_Iterator> __it) + -> decltype(__make_reverse_iterator(__niter_base(__it.base()))) + { return __make_reverse_iterator(__niter_base(__it.base())); } + + template + struct __is_move_iterator > + : __is_move_iterator<_Iterator> + { }; + + template + _GLIBCXX20_CONSTEXPR + auto + __miter_base(reverse_iterator<_Iterator> __it) + -> decltype(__make_reverse_iterator(__miter_base(__it.base()))) + { return __make_reverse_iterator(__miter_base(__it.base())); } +#endif // C++11 + + // 24.4.2.2.1 back_insert_iterator + /** + * @brief Turns assignment into insertion. + * + * These are output iterators, constructed from a container-of-T. + * Assigning a T to the iterator appends it to the container using + * push_back. + * + * Tip: Using the back_inserter function to create these iterators can + * save typing. + */ + template + class back_insert_iterator + : public iterator + { + protected: + _Container* container; + + public: + /// A nested typedef for the type of whatever container you used. + typedef _Container container_type; +#if __cplusplus > 201703L + using difference_type = ptrdiff_t; + + constexpr back_insert_iterator() noexcept : container(nullptr) { } +#endif + + /// The only way to create this %iterator is with a container. + explicit _GLIBCXX20_CONSTEXPR + back_insert_iterator(_Container& __x) + : container(std::__addressof(__x)) { } + + /** + * @param __value An instance of whatever type + * container_type::const_reference is; presumably a + * reference-to-const T for container. + * @return This %iterator, for chained operations. + * + * This kind of %iterator doesn't really have a @a position in the + * container (you can think of the position as being permanently at + * the end, if you like). Assigning a value to the %iterator will + * always append the value to the end of the container. + */ +#if __cplusplus < 201103L + back_insert_iterator& + operator=(typename _Container::const_reference __value) + { + container->push_back(__value); + return *this; + } +#else + _GLIBCXX20_CONSTEXPR + back_insert_iterator& + operator=(const typename _Container::value_type& __value) + { + container->push_back(__value); + return *this; + } + + _GLIBCXX20_CONSTEXPR + back_insert_iterator& + operator=(typename _Container::value_type&& __value) + { + container->push_back(std::move(__value)); + return *this; + } +#endif + + /// Simply returns *this. + _GLIBCXX20_CONSTEXPR + back_insert_iterator& + operator*() + { return *this; } + + /// Simply returns *this. (This %iterator does not @a move.) + _GLIBCXX20_CONSTEXPR + back_insert_iterator& + operator++() + { return *this; } + + /// Simply returns *this. (This %iterator does not @a move.) + _GLIBCXX20_CONSTEXPR + back_insert_iterator + operator++(int) + { return *this; } + }; + + /** + * @param __x A container of arbitrary type. + * @return An instance of back_insert_iterator working on @p __x. + * + * This wrapper function helps in creating back_insert_iterator instances. + * Typing the name of the %iterator requires knowing the precise full + * type of the container, which can be tedious and impedes generic + * programming. Using this function lets you take advantage of automatic + * template parameter deduction, making the compiler match the correct + * types for you. + */ + template + _GLIBCXX20_CONSTEXPR + inline back_insert_iterator<_Container> + back_inserter(_Container& __x) + { return back_insert_iterator<_Container>(__x); } + + /** + * @brief Turns assignment into insertion. + * + * These are output iterators, constructed from a container-of-T. + * Assigning a T to the iterator prepends it to the container using + * push_front. + * + * Tip: Using the front_inserter function to create these iterators can + * save typing. + */ + template + class front_insert_iterator + : public iterator + { + protected: + _Container* container; + + public: + /// A nested typedef for the type of whatever container you used. + typedef _Container container_type; +#if __cplusplus > 201703L + using difference_type = ptrdiff_t; + + constexpr front_insert_iterator() noexcept : container(nullptr) { } +#endif + + /// The only way to create this %iterator is with a container. + explicit _GLIBCXX20_CONSTEXPR + front_insert_iterator(_Container& __x) + : container(std::__addressof(__x)) { } + + /** + * @param __value An instance of whatever type + * container_type::const_reference is; presumably a + * reference-to-const T for container. + * @return This %iterator, for chained operations. + * + * This kind of %iterator doesn't really have a @a position in the + * container (you can think of the position as being permanently at + * the front, if you like). Assigning a value to the %iterator will + * always prepend the value to the front of the container. + */ +#if __cplusplus < 201103L + front_insert_iterator& + operator=(typename _Container::const_reference __value) + { + container->push_front(__value); + return *this; + } +#else + _GLIBCXX20_CONSTEXPR + front_insert_iterator& + operator=(const typename _Container::value_type& __value) + { + container->push_front(__value); + return *this; + } + + _GLIBCXX20_CONSTEXPR + front_insert_iterator& + operator=(typename _Container::value_type&& __value) + { + container->push_front(std::move(__value)); + return *this; + } +#endif + + /// Simply returns *this. + _GLIBCXX20_CONSTEXPR + front_insert_iterator& + operator*() + { return *this; } + + /// Simply returns *this. (This %iterator does not @a move.) + _GLIBCXX20_CONSTEXPR + front_insert_iterator& + operator++() + { return *this; } + + /// Simply returns *this. (This %iterator does not @a move.) + _GLIBCXX20_CONSTEXPR + front_insert_iterator + operator++(int) + { return *this; } + }; + + /** + * @param __x A container of arbitrary type. + * @return An instance of front_insert_iterator working on @p x. + * + * This wrapper function helps in creating front_insert_iterator instances. + * Typing the name of the %iterator requires knowing the precise full + * type of the container, which can be tedious and impedes generic + * programming. Using this function lets you take advantage of automatic + * template parameter deduction, making the compiler match the correct + * types for you. + */ + template + _GLIBCXX20_CONSTEXPR + inline front_insert_iterator<_Container> + front_inserter(_Container& __x) + { return front_insert_iterator<_Container>(__x); } + + /** + * @brief Turns assignment into insertion. + * + * These are output iterators, constructed from a container-of-T. + * Assigning a T to the iterator inserts it in the container at the + * %iterator's position, rather than overwriting the value at that + * position. + * + * (Sequences will actually insert a @e copy of the value before the + * %iterator's position.) + * + * Tip: Using the inserter function to create these iterators can + * save typing. + */ + template + class insert_iterator + : public iterator + { +#if __cplusplus > 201703L && defined __cpp_lib_concepts + using _Iter = std::__detail::__range_iter_t<_Container>; + + protected: + _Container* container = nullptr; + _Iter iter = _Iter(); +#else + typedef typename _Container::iterator _Iter; + + protected: + _Container* container; + _Iter iter; +#endif + + public: + /// A nested typedef for the type of whatever container you used. + typedef _Container container_type; + +#if __cplusplus > 201703L && defined __cpp_lib_concepts + using difference_type = ptrdiff_t; + + insert_iterator() = default; +#endif + + /** + * The only way to create this %iterator is with a container and an + * initial position (a normal %iterator into the container). + */ + _GLIBCXX20_CONSTEXPR + insert_iterator(_Container& __x, _Iter __i) + : container(std::__addressof(__x)), iter(__i) {} + + /** + * @param __value An instance of whatever type + * container_type::const_reference is; presumably a + * reference-to-const T for container. + * @return This %iterator, for chained operations. + * + * This kind of %iterator maintains its own position in the + * container. Assigning a value to the %iterator will insert the + * value into the container at the place before the %iterator. + * + * The position is maintained such that subsequent assignments will + * insert values immediately after one another. For example, + * @code + * // vector v contains A and Z + * + * insert_iterator i (v, ++v.begin()); + * i = 1; + * i = 2; + * i = 3; + * + * // vector v contains A, 1, 2, 3, and Z + * @endcode + */ +#if __cplusplus < 201103L + insert_iterator& + operator=(typename _Container::const_reference __value) + { + iter = container->insert(iter, __value); + ++iter; + return *this; + } +#else + _GLIBCXX20_CONSTEXPR + insert_iterator& + operator=(const typename _Container::value_type& __value) + { + iter = container->insert(iter, __value); + ++iter; + return *this; + } + + _GLIBCXX20_CONSTEXPR + insert_iterator& + operator=(typename _Container::value_type&& __value) + { + iter = container->insert(iter, std::move(__value)); + ++iter; + return *this; + } +#endif + + /// Simply returns *this. + _GLIBCXX20_CONSTEXPR + insert_iterator& + operator*() + { return *this; } + + /// Simply returns *this. (This %iterator does not @a move.) + _GLIBCXX20_CONSTEXPR + insert_iterator& + operator++() + { return *this; } + + /// Simply returns *this. (This %iterator does not @a move.) + _GLIBCXX20_CONSTEXPR + insert_iterator& + operator++(int) + { return *this; } + }; + + /** + * @param __x A container of arbitrary type. + * @param __i An iterator into the container. + * @return An instance of insert_iterator working on @p __x. + * + * This wrapper function helps in creating insert_iterator instances. + * Typing the name of the %iterator requires knowing the precise full + * type of the container, which can be tedious and impedes generic + * programming. Using this function lets you take advantage of automatic + * template parameter deduction, making the compiler match the correct + * types for you. + */ +#if __cplusplus > 201703L && defined __cpp_lib_concepts + template + constexpr insert_iterator<_Container> + inserter(_Container& __x, std::__detail::__range_iter_t<_Container> __i) + { return insert_iterator<_Container>(__x, __i); } +#else + template + inline insert_iterator<_Container> + inserter(_Container& __x, _Iterator __i) + { + return insert_iterator<_Container>(__x, + typename _Container::iterator(__i)); + } +#endif + + // @} group iterators + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // This iterator adapter is @a normal in the sense that it does not + // change the semantics of any of the operators of its iterator + // parameter. Its primary purpose is to convert an iterator that is + // not a class, e.g. a pointer, into an iterator that is a class. + // The _Container parameter exists solely so that different containers + // using this template can instantiate different types, even if the + // _Iterator parameter is the same. + template + class __normal_iterator + { + protected: + _Iterator _M_current; + + typedef std::iterator_traits<_Iterator> __traits_type; + + public: + typedef _Iterator iterator_type; + typedef typename __traits_type::iterator_category iterator_category; + typedef typename __traits_type::value_type value_type; + typedef typename __traits_type::difference_type difference_type; + typedef typename __traits_type::reference reference; + typedef typename __traits_type::pointer pointer; + +#if __cplusplus > 201703L && __cpp_lib_concepts + using iterator_concept = std::__detail::__iter_concept<_Iterator>; +#endif + + _GLIBCXX_CONSTEXPR __normal_iterator() _GLIBCXX_NOEXCEPT + : _M_current(_Iterator()) { } + + explicit _GLIBCXX20_CONSTEXPR + __normal_iterator(const _Iterator& __i) _GLIBCXX_NOEXCEPT + : _M_current(__i) { } + + // Allow iterator to const_iterator conversion + template + _GLIBCXX20_CONSTEXPR + __normal_iterator(const __normal_iterator<_Iter, + typename __enable_if< + (std::__are_same<_Iter, typename _Container::pointer>::__value), + _Container>::__type>& __i) _GLIBCXX_NOEXCEPT + : _M_current(__i.base()) { } + + // Forward iterator requirements + _GLIBCXX20_CONSTEXPR + reference + operator*() const _GLIBCXX_NOEXCEPT + { return *_M_current; } + + _GLIBCXX20_CONSTEXPR + pointer + operator->() const _GLIBCXX_NOEXCEPT + { return _M_current; } + + _GLIBCXX20_CONSTEXPR + __normal_iterator& + operator++() _GLIBCXX_NOEXCEPT + { + ++_M_current; + return *this; + } + + _GLIBCXX20_CONSTEXPR + __normal_iterator + operator++(int) _GLIBCXX_NOEXCEPT + { return __normal_iterator(_M_current++); } + + // Bidirectional iterator requirements + _GLIBCXX20_CONSTEXPR + __normal_iterator& + operator--() _GLIBCXX_NOEXCEPT + { + --_M_current; + return *this; + } + + _GLIBCXX20_CONSTEXPR + __normal_iterator + operator--(int) _GLIBCXX_NOEXCEPT + { return __normal_iterator(_M_current--); } + + // Random access iterator requirements + _GLIBCXX20_CONSTEXPR + reference + operator[](difference_type __n) const _GLIBCXX_NOEXCEPT + { return _M_current[__n]; } + + _GLIBCXX20_CONSTEXPR + __normal_iterator& + operator+=(difference_type __n) _GLIBCXX_NOEXCEPT + { _M_current += __n; return *this; } + + _GLIBCXX20_CONSTEXPR + __normal_iterator + operator+(difference_type __n) const _GLIBCXX_NOEXCEPT + { return __normal_iterator(_M_current + __n); } + + _GLIBCXX20_CONSTEXPR + __normal_iterator& + operator-=(difference_type __n) _GLIBCXX_NOEXCEPT + { _M_current -= __n; return *this; } + + _GLIBCXX20_CONSTEXPR + __normal_iterator + operator-(difference_type __n) const _GLIBCXX_NOEXCEPT + { return __normal_iterator(_M_current - __n); } + + _GLIBCXX20_CONSTEXPR + const _Iterator& + base() const _GLIBCXX_NOEXCEPT + { return _M_current; } + }; + + // Note: In what follows, the left- and right-hand-side iterators are + // allowed to vary in types (conceptually in cv-qualification) so that + // comparison between cv-qualified and non-cv-qualified iterators be + // valid. However, the greedy and unfriendly operators in std::rel_ops + // will make overload resolution ambiguous (when in scope) if we don't + // provide overloads whose operands are of the same type. Can someone + // remind me what generic programming is about? -- Gaby + +#if __cpp_lib_three_way_comparison + template + requires requires (_IteratorL __lhs, _IteratorR __rhs) + { { __lhs == __rhs } -> std::convertible_to; } + constexpr bool + operator==(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + noexcept(noexcept(__lhs.base() == __rhs.base())) + { return __lhs.base() == __rhs.base(); } + + template + constexpr std::__detail::__synth3way_t<_IteratorR, _IteratorL> + operator<=>(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + noexcept(noexcept(std::__detail::__synth3way(__lhs.base(), __rhs.base()))) + { return std::__detail::__synth3way(__lhs.base(), __rhs.base()); } +#else + // Forward iterator requirements + template + _GLIBCXX20_CONSTEXPR + inline bool + operator==(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() == __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator==(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() == __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator!=(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() != __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator!=(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() != __rhs.base(); } + + // Random access iterator requirements + template + inline bool + operator<(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() < __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator<(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() < __rhs.base(); } + + template + inline bool + operator>(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() > __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator>(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() > __rhs.base(); } + + template + inline bool + operator<=(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() <= __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator<=(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() <= __rhs.base(); } + + template + inline bool + operator>=(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() >= __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + operator>=(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() >= __rhs.base(); } +#endif // three-way comparison + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // According to the resolution of DR179 not only the various comparison + // operators but also operator- must accept mixed iterator/const_iterator + // parameters. + template +#if __cplusplus >= 201103L + // DR 685. + _GLIBCXX20_CONSTEXPR + inline auto + operator-(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) noexcept + -> decltype(__lhs.base() - __rhs.base()) +#else + inline typename __normal_iterator<_IteratorL, _Container>::difference_type + operator-(const __normal_iterator<_IteratorL, _Container>& __lhs, + const __normal_iterator<_IteratorR, _Container>& __rhs) +#endif + { return __lhs.base() - __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline typename __normal_iterator<_Iterator, _Container>::difference_type + operator-(const __normal_iterator<_Iterator, _Container>& __lhs, + const __normal_iterator<_Iterator, _Container>& __rhs) + _GLIBCXX_NOEXCEPT + { return __lhs.base() - __rhs.base(); } + + template + _GLIBCXX20_CONSTEXPR + inline __normal_iterator<_Iterator, _Container> + operator+(typename __normal_iterator<_Iterator, _Container>::difference_type + __n, const __normal_iterator<_Iterator, _Container>& __i) + _GLIBCXX_NOEXCEPT + { return __normal_iterator<_Iterator, _Container>(__i.base() + __n); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + _GLIBCXX20_CONSTEXPR + _Iterator + __niter_base(__gnu_cxx::__normal_iterator<_Iterator, _Container> __it) + _GLIBCXX_NOEXCEPT_IF(std::is_nothrow_copy_constructible<_Iterator>::value) + { return __it.base(); } + +#if __cplusplus >= 201103L + /** + * @addtogroup iterators + * @{ + */ + +#if __cplusplus > 201703L && __cpp_lib_concepts + template + class move_sentinel + { + public: + constexpr + move_sentinel() + noexcept(is_nothrow_default_constructible_v<_Sent>) + : _M_last() { } + + constexpr explicit + move_sentinel(_Sent __s) + noexcept(is_nothrow_move_constructible_v<_Sent>) + : _M_last(std::move(__s)) { } + + template requires convertible_to + constexpr + move_sentinel(const move_sentinel<_S2>& __s) + noexcept(is_nothrow_constructible_v<_Sent, const _S2&>) + : _M_last(__s.base()) + { } + + template requires assignable_from<_Sent&, const _S2&> + constexpr move_sentinel& + operator=(const move_sentinel<_S2>& __s) + noexcept(is_nothrow_assignable_v<_Sent, const _S2&>) + { + _M_last = __s.base(); + return *this; + } + + constexpr _Sent + base() const + noexcept(is_nothrow_copy_constructible_v<_Sent>) + { return _M_last; } + + private: + _Sent _M_last; + }; +#endif // C++20 + + // 24.4.3 Move iterators + /** + * Class template move_iterator is an iterator adapter with the same + * behavior as the underlying iterator except that its dereference + * operator implicitly converts the value returned by the underlying + * iterator's dereference operator to an rvalue reference. Some + * generic algorithms can be called with move iterators to replace + * copying with moving. + */ + template + class move_iterator + { + _Iterator _M_current; + + using __traits_type = iterator_traits<_Iterator>; +#if __cplusplus > 201703L && __cpp_lib_concepts + using __base_cat = typename __traits_type::iterator_category; +#else + using __base_ref = typename __traits_type::reference; +#endif + + public: + using iterator_type = _Iterator; + +#if __cplusplus > 201703L && __cpp_lib_concepts + using iterator_concept = input_iterator_tag; + using iterator_category + = __detail::__clamp_iter_cat<__base_cat, random_access_iterator_tag>; + using value_type = iter_value_t<_Iterator>; + using difference_type = iter_difference_t<_Iterator>; + using pointer = _Iterator; + using reference = iter_rvalue_reference_t<_Iterator>; +#else + typedef typename __traits_type::iterator_category iterator_category; + typedef typename __traits_type::value_type value_type; + typedef typename __traits_type::difference_type difference_type; + // NB: DR 680. + typedef _Iterator pointer; + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2106. move_iterator wrapping iterators returning prvalues + typedef typename conditional::value, + typename remove_reference<__base_ref>::type&&, + __base_ref>::type reference; +#endif + + _GLIBCXX17_CONSTEXPR + move_iterator() + : _M_current() { } + + explicit _GLIBCXX17_CONSTEXPR + move_iterator(iterator_type __i) + : _M_current(std::move(__i)) { } + + template + _GLIBCXX17_CONSTEXPR + move_iterator(const move_iterator<_Iter>& __i) + : _M_current(__i.base()) { } + +#if __cplusplus <= 201703L + _GLIBCXX17_CONSTEXPR iterator_type + base() const + { return _M_current; } +#else + constexpr iterator_type + base() const & +#if __cpp_lib_concepts + requires copy_constructible +#endif + { return _M_current; } + + constexpr iterator_type + base() && + { return std::move(_M_current); } +#endif + + _GLIBCXX17_CONSTEXPR reference + operator*() const +#if __cplusplus > 201703L && __cpp_lib_concepts + { return ranges::iter_move(_M_current); } +#else + { return static_cast(*_M_current); } +#endif + + _GLIBCXX17_CONSTEXPR pointer + operator->() const + { return _M_current; } + + _GLIBCXX17_CONSTEXPR move_iterator& + operator++() + { + ++_M_current; + return *this; + } + + _GLIBCXX17_CONSTEXPR move_iterator + operator++(int) + { + move_iterator __tmp = *this; + ++_M_current; + return __tmp; + } + +#if __cpp_lib_concepts + constexpr void + operator++(int) requires (!forward_iterator<_Iterator>) + { ++_M_current; } +#endif + + _GLIBCXX17_CONSTEXPR move_iterator& + operator--() + { + --_M_current; + return *this; + } + + _GLIBCXX17_CONSTEXPR move_iterator + operator--(int) + { + move_iterator __tmp = *this; + --_M_current; + return __tmp; + } + + _GLIBCXX17_CONSTEXPR move_iterator + operator+(difference_type __n) const + { return move_iterator(_M_current + __n); } + + _GLIBCXX17_CONSTEXPR move_iterator& + operator+=(difference_type __n) + { + _M_current += __n; + return *this; + } + + _GLIBCXX17_CONSTEXPR move_iterator + operator-(difference_type __n) const + { return move_iterator(_M_current - __n); } + + _GLIBCXX17_CONSTEXPR move_iterator& + operator-=(difference_type __n) + { + _M_current -= __n; + return *this; + } + + _GLIBCXX17_CONSTEXPR reference + operator[](difference_type __n) const +#if __cplusplus > 201703L && __cpp_lib_concepts + { return ranges::iter_move(_M_current + __n); } +#else + { return std::move(_M_current[__n]); } +#endif + +#if __cplusplus > 201703L && __cpp_lib_concepts + template _Sent> + friend constexpr bool + operator==(const move_iterator& __x, const move_sentinel<_Sent>& __y) + { return __x.base() == __y.base(); } + + template _Sent> + friend constexpr iter_difference_t<_Iterator> + operator-(const move_sentinel<_Sent>& __x, const move_iterator& __y) + { return __x.base() - __y.base(); } + + template _Sent> + friend constexpr iter_difference_t<_Iterator> + operator-(const move_iterator& __x, const move_sentinel<_Sent>& __y) + { return __x.base() - __y.base(); } + + friend constexpr iter_rvalue_reference_t<_Iterator> + iter_move(const move_iterator& __i) + noexcept(noexcept(ranges::iter_move(__i._M_current))) + { return ranges::iter_move(__i._M_current); } + + template _Iter2> + friend constexpr void + iter_swap(const move_iterator& __x, const move_iterator<_Iter2>& __y) + noexcept(noexcept(ranges::iter_swap(__x._M_current, __y._M_current))) + { return ranges::iter_swap(__x._M_current, __y._M_current); } +#endif // C++20 + }; + + template + inline _GLIBCXX17_CONSTEXPR bool + operator==(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) +#if __cplusplus > 201703L && __cpp_lib_concepts + requires requires { { __x.base() == __y.base() } -> convertible_to; } +#endif + { return __x.base() == __y.base(); } + +#if __cpp_lib_three_way_comparison + template _IteratorR> + constexpr compare_three_way_result_t<_IteratorL, _IteratorR> + operator<=>(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) + { return __x.base() <=> __y.base(); } +#else + template + inline _GLIBCXX17_CONSTEXPR bool + operator!=(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) + { return !(__x == __y); } +#endif + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) +#if __cplusplus > 201703L && __cpp_lib_concepts + requires requires { { __x.base() < __y.base() } -> convertible_to; } +#endif + { return __x.base() < __y.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<=(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) +#if __cplusplus > 201703L && __cpp_lib_concepts + requires requires { { __y.base() < __x.base() } -> convertible_to; } +#endif + { return !(__y < __x); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) +#if __cplusplus > 201703L && __cpp_lib_concepts + requires requires { { __y.base() < __x.base() } -> convertible_to; } +#endif + { return __y < __x; } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>=(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) +#if __cplusplus > 201703L && __cpp_lib_concepts + requires requires { { __x.base() < __y.base() } -> convertible_to; } +#endif + { return !(__x < __y); } + +#if ! (__cplusplus > 201703L && __cpp_lib_concepts) + // Note: See __normal_iterator operators note from Gaby to understand + // why we have these extra overloads for some move_iterator operators. + + // These extra overloads are not needed in C++20, because the ones above + // are constrained with a requires-clause and so overload resolution will + // prefer them to greedy unconstrained function templates. + + template + inline _GLIBCXX17_CONSTEXPR bool + operator==(const move_iterator<_Iterator>& __x, + const move_iterator<_Iterator>& __y) + { return __x.base() == __y.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator!=(const move_iterator<_Iterator>& __x, + const move_iterator<_Iterator>& __y) + { return !(__x == __y); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<(const move_iterator<_Iterator>& __x, + const move_iterator<_Iterator>& __y) + { return __x.base() < __y.base(); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator<=(const move_iterator<_Iterator>& __x, + const move_iterator<_Iterator>& __y) + { return !(__y < __x); } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>(const move_iterator<_Iterator>& __x, + const move_iterator<_Iterator>& __y) + { return __y < __x; } + + template + inline _GLIBCXX17_CONSTEXPR bool + operator>=(const move_iterator<_Iterator>& __x, + const move_iterator<_Iterator>& __y) + { return !(__x < __y); } +#endif // ! C++20 + + // DR 685. + template + inline _GLIBCXX17_CONSTEXPR auto + operator-(const move_iterator<_IteratorL>& __x, + const move_iterator<_IteratorR>& __y) + -> decltype(__x.base() - __y.base()) + { return __x.base() - __y.base(); } + + template + inline _GLIBCXX17_CONSTEXPR move_iterator<_Iterator> + operator+(typename move_iterator<_Iterator>::difference_type __n, + const move_iterator<_Iterator>& __x) + { return __x + __n; } + + template + inline _GLIBCXX17_CONSTEXPR move_iterator<_Iterator> + make_move_iterator(_Iterator __i) + { return move_iterator<_Iterator>(std::move(__i)); } + + template::value_type>::value, + _Iterator, move_iterator<_Iterator>>::type> + inline _GLIBCXX17_CONSTEXPR _ReturnType + __make_move_if_noexcept_iterator(_Iterator __i) + { return _ReturnType(__i); } + + // Overload for pointers that matches std::move_if_noexcept more closely, + // returning a constant iterator when we don't want to move. + template::value, + const _Tp*, move_iterator<_Tp*>>::type> + inline _GLIBCXX17_CONSTEXPR _ReturnType + __make_move_if_noexcept_iterator(_Tp* __i) + { return _ReturnType(__i); } + +#if __cplusplus > 201703L && __cpp_lib_concepts + // [iterators.common] Common iterators + + namespace __detail + { + template + concept __common_iter_has_arrow = indirectly_readable + && (requires(const _It& __it) { __it.operator->(); } + || is_reference_v> + || constructible_from, iter_reference_t<_It>>); + + } // namespace __detail + + /// An iterator/sentinel adaptor for representing a non-common range. + template _Sent> + requires (!same_as<_It, _Sent>) && copyable<_It> + class common_iterator + { + template + static constexpr bool + _S_noexcept1() + { + if constexpr (is_trivially_default_constructible_v<_Tp>) + return is_nothrow_assignable_v<_Tp, _Up>; + else + return is_nothrow_constructible_v<_Tp, _Up>; + } + + template + static constexpr bool + _S_noexcept() + { return _S_noexcept1<_It, _It2>() && _S_noexcept1<_Sent, _Sent2>(); } + + class _Proxy + { + iter_value_t<_It> _M_keep; + + _Proxy(iter_reference_t<_It>&& __x) + : _M_keep(std::move(__x)) { } + + friend class common_iterator; + + public: + const iter_value_t<_It>* + operator->() const + { return std::__addressof(_M_keep); } + }; + + public: + constexpr + common_iterator() + noexcept(is_nothrow_default_constructible_v<_It>) + : _M_it(), _M_index(0) + { } + + constexpr + common_iterator(_It __i) + noexcept(is_nothrow_move_constructible_v<_It>) + : _M_it(std::move(__i)), _M_index(0) + { } + + constexpr + common_iterator(_Sent __s) + noexcept(is_nothrow_move_constructible_v<_Sent>) + : _M_sent(std::move(__s)), _M_index(1) + { } + + template + requires convertible_to + && convertible_to + constexpr + common_iterator(const common_iterator<_It2, _Sent2>& __x) + noexcept(_S_noexcept()) + : _M_valueless(), _M_index(__x._M_index) + { + if (_M_index == 0) + { + if constexpr (is_trivially_default_constructible_v<_It>) + _M_it = std::move(__x._M_it); + else + ::new((void*)std::__addressof(_M_it)) _It(__x._M_it); + } + else if (_M_index == 1) + { + if constexpr (is_trivially_default_constructible_v<_Sent>) + _M_sent = std::move(__x._M_sent); + else + ::new((void*)std::__addressof(_M_sent)) _Sent(__x._M_sent); + } + } + + constexpr + common_iterator(const common_iterator& __x) + noexcept(_S_noexcept()) + : _M_valueless(), _M_index(__x._M_index) + { + if (_M_index == 0) + { + if constexpr (is_trivially_default_constructible_v<_It>) + _M_it = std::move(__x._M_it); + else + ::new((void*)std::__addressof(_M_it)) _It(__x._M_it); + } + else if (_M_index == 1) + { + if constexpr (is_trivially_default_constructible_v<_Sent>) + _M_sent = std::move(__x._M_sent); + else + ::new((void*)std::__addressof(_M_sent)) _Sent(__x._M_sent); + } + } + + common_iterator& + operator=(const common_iterator& __x) + noexcept(is_nothrow_copy_assignable_v<_It> + && is_nothrow_copy_assignable_v<_Sent> + && is_nothrow_copy_constructible_v<_It> + && is_nothrow_copy_constructible_v<_Sent>) + { + return this->operator=<_It, _Sent>(__x); + } + + template + requires convertible_to + && convertible_to + && assignable_from<_It&, const _It2&> + && assignable_from<_Sent&, const _Sent2&> + common_iterator& + operator=(const common_iterator<_It2, _Sent2>& __x) + noexcept(is_nothrow_constructible_v<_It, const _It2&> + && is_nothrow_constructible_v<_Sent, const _Sent2&> + && is_nothrow_assignable_v<_It, const _It2&> + && is_nothrow_assignable_v<_Sent, const _Sent2&>) + { + switch(_M_index << 2 | __x._M_index) + { + case 0b0000: + _M_it = __x._M_it; + break; + case 0b0101: + _M_sent = __x._M_sent; + break; + case 0b0001: + _M_it.~_It(); + _M_index = -1; + [[fallthrough]]; + case 0b1001: + ::new((void*)std::__addressof(_M_sent)) _Sent(__x._M_sent); + _M_index = 1; + break; + case 0b0100: + _M_sent.~_Sent(); + _M_index = -1; + [[fallthrough]]; + case 0b1000: + ::new((void*)std::__addressof(_M_it)) _It(__x._M_it); + _M_index = 0; + break; + default: + __glibcxx_assert(__x._M_has_value()); + __builtin_unreachable(); + } + return *this; + } + + ~common_iterator() + { + switch (_M_index) + { + case 0: + _M_it.~_It(); + break; + case 1: + _M_sent.~_Sent(); + break; + } + } + + decltype(auto) + operator*() + { + __glibcxx_assert(_M_index == 0); + return *_M_it; + } + + decltype(auto) + operator*() const requires __detail::__dereferenceable + { + __glibcxx_assert(_M_index == 0); + return *_M_it; + } + + decltype(auto) + operator->() const requires __detail::__common_iter_has_arrow<_It> + { + __glibcxx_assert(_M_index == 0); + if constexpr (is_pointer_v<_It> || requires { _M_it.operator->(); }) + return _M_it; + else if constexpr (is_reference_v>) + { + auto&& __tmp = *_M_it; + return std::__addressof(__tmp); + } + else + return _Proxy{*_M_it}; + } + + common_iterator& + operator++() + { + __glibcxx_assert(_M_index == 0); + ++_M_it; + return *this; + } + + decltype(auto) + operator++(int) + { + __glibcxx_assert(_M_index == 0); + if constexpr (forward_iterator<_It>) + { + common_iterator __tmp = *this; + ++*this; + return __tmp; + } + else + return _M_it++; + } + + template _Sent2> + requires sentinel_for<_Sent, _It2> + friend bool + operator==(const common_iterator& __x, + const common_iterator<_It2, _Sent2>& __y) + { + switch(__x._M_index << 2 | __y._M_index) + { + case 0b0000: + case 0b0101: + return true; + case 0b0001: + return __x._M_it == __y._M_sent; + case 0b0100: + return __x._M_sent == __y._M_it; + default: + __glibcxx_assert(__x._M_has_value()); + __glibcxx_assert(__y._M_has_value()); + __builtin_unreachable(); + } + } + + template _Sent2> + requires sentinel_for<_Sent, _It2> && equality_comparable_with<_It, _It2> + friend bool + operator==(const common_iterator& __x, + const common_iterator<_It2, _Sent2>& __y) + { + switch(__x._M_index << 2 | __y._M_index) + { + case 0b0101: + return true; + case 0b0000: + return __x._M_it == __y._M_it; + case 0b0001: + return __x._M_it == __y._M_sent; + case 0b0100: + return __x._M_sent == __y._M_it; + default: + __glibcxx_assert(__x._M_has_value()); + __glibcxx_assert(__y._M_has_value()); + __builtin_unreachable(); + } + } + + template _It2, sized_sentinel_for<_It> _Sent2> + requires sized_sentinel_for<_Sent, _It2> + friend iter_difference_t<_It2> + operator-(const common_iterator& __x, + const common_iterator<_It2, _Sent2>& __y) + { + switch(__x._M_index << 2 | __y._M_index) + { + case 0b0101: + return 0; + case 0b0000: + return __x._M_it - __y._M_it; + case 0b0001: + return __x._M_it - __y._M_sent; + case 0b0100: + return __x._M_sent - __y._M_it; + default: + __glibcxx_assert(__x._M_has_value()); + __glibcxx_assert(__y._M_has_value()); + __builtin_unreachable(); + } + } + + friend iter_rvalue_reference_t<_It> + iter_move(const common_iterator& __i) + noexcept(noexcept(ranges::iter_move(std::declval()))) + requires input_iterator<_It> + { + __glibcxx_assert(__i._M_index == 0); + return ranges::iter_move(__i._M_it); + } + + template _It2, typename _Sent2> + friend void + iter_swap(const common_iterator& __x, + const common_iterator<_It2, _Sent2>& __y) + noexcept(noexcept(ranges::iter_swap(std::declval(), + std::declval()))) + { + __glibcxx_assert(__x._M_index == 0); + __glibcxx_assert(__y._M_index == 0); + return ranges::iter_swap(__x._M_it, __y._M_it); + } + + private: + template _Sent2> + friend class common_iterator; + + bool _M_has_value() const noexcept { return _M_index < 2; } + + union + { + _It _M_it; + _Sent _M_sent; + unsigned char _M_valueless; + }; + unsigned char _M_index; // 0==_M_it, 1==_M_sent, 2==valueless + }; + + template + struct incrementable_traits> + { + using difference_type = iter_difference_t<_It>; + }; + + namespace __detail + { + // FIXME: This has to be at namespace-scope because of PR 92103. + template + struct __common_iter_ptr + { + using type = void; + }; + + template + requires __detail::__common_iter_has_arrow<_It> + struct __common_iter_ptr<_It, _Sent> + { + using common_iterator = std::common_iterator<_It, _Sent>; + + using type + = decltype(std::declval().operator->()); + }; + } // namespace __detail + + template + struct iterator_traits> + { + using iterator_concept = conditional_t, + forward_iterator_tag, input_iterator_tag>; + using iterator_category = __detail::__clamp_iter_cat< + typename iterator_traits<_It>::iterator_category, + forward_iterator_tag, input_iterator_tag>; + using value_type = iter_value_t<_It>; + using difference_type = iter_difference_t<_It>; + using pointer = typename __detail::__common_iter_ptr<_It, _Sent>::type; + using reference = iter_reference_t<_It>; + }; + + // [iterators.counted] Counted iterators + + /// An iterator adaptor that keeps track of the distance to the end. + template + class counted_iterator + { + public: + using iterator_type = _It; + + constexpr counted_iterator() = default; + + constexpr + counted_iterator(_It __i, iter_difference_t<_It> __n) + : _M_current(std::move(__i)), _M_length(__n) + { __glibcxx_assert(__n >= 0); } + + template + requires convertible_to + constexpr + counted_iterator(const counted_iterator<_It2>& __x) + : _M_current(__x._M_current), _M_length(__x._M_length) + { } + + template + requires assignable_from<_It&, const _It2&> + constexpr counted_iterator& + operator=(const counted_iterator<_It2>& __x) + { + _M_current = __x._M_current; + _M_length = __x._M_length; + return *this; + } + + constexpr _It + base() const & + noexcept(is_nothrow_copy_constructible_v<_It>) + requires copy_constructible<_It> + { return _M_current; } + + constexpr _It + base() && + noexcept(is_nothrow_move_constructible_v<_It>) + { return std::move(_M_current); } + + constexpr iter_difference_t<_It> + count() const noexcept { return _M_length; } + + constexpr decltype(auto) + operator*() + noexcept(noexcept(*_M_current)) + { return *_M_current; } + + constexpr decltype(auto) + operator*() const + noexcept(noexcept(*_M_current)) + requires __detail::__dereferenceable + { return *_M_current; } + + constexpr counted_iterator& + operator++() + { + __glibcxx_assert(_M_length > 0); + ++_M_current; + --_M_length; + return *this; + } + + decltype(auto) + operator++(int) + { + __glibcxx_assert(_M_length > 0); + --_M_length; + __try + { + return _M_current++; + } __catch(...) { + ++_M_length; + __throw_exception_again; + } + + } + + constexpr counted_iterator + operator++(int) requires forward_iterator<_It> + { + auto __tmp = *this; + ++*this; + return __tmp; + } + + constexpr counted_iterator& + operator--() requires bidirectional_iterator<_It> + { + --_M_current; + ++_M_length; + return *this; + } + + constexpr counted_iterator + operator--(int) requires bidirectional_iterator<_It> + { + auto __tmp = *this; + --*this; + return __tmp; + } + + constexpr counted_iterator + operator+(iter_difference_t<_It> __n) const + requires random_access_iterator<_It> + { return counted_iterator(_M_current + __n, _M_length - __n); } + + friend constexpr counted_iterator + operator+(iter_difference_t<_It> __n, const counted_iterator& __x) + requires random_access_iterator<_It> + { return __x + __n; } + + constexpr counted_iterator& + operator+=(iter_difference_t<_It> __n) + requires random_access_iterator<_It> + { + __glibcxx_assert(__n <= _M_length); + _M_current += __n; + _M_length -= __n; + return *this; + } + + constexpr counted_iterator + operator-(iter_difference_t<_It> __n) const + requires random_access_iterator<_It> + { return counted_iterator(_M_current - __n, _M_length + __n); } + + template _It2> + friend constexpr iter_difference_t<_It2> + operator-(const counted_iterator& __x, + const counted_iterator<_It2>& __y) + { return __y._M_length - __x._M_length; } + + friend constexpr iter_difference_t<_It> + operator-(const counted_iterator& __x, default_sentinel_t) + { return -__x._M_length; } + + friend constexpr iter_difference_t<_It> + operator-(default_sentinel_t, const counted_iterator& __y) + { return __y._M_length; } + + constexpr counted_iterator& + operator-=(iter_difference_t<_It> __n) + requires random_access_iterator<_It> + { + __glibcxx_assert(-__n <= _M_length); + _M_current -= __n; + _M_length += __n; + return *this; + } + + constexpr decltype(auto) + operator[](iter_difference_t<_It> __n) const + noexcept(noexcept(_M_current[__n])) + requires random_access_iterator<_It> + { + __glibcxx_assert(__n < _M_length); + return _M_current[__n]; + } + + template _It2> + friend constexpr bool + operator==(const counted_iterator& __x, + const counted_iterator<_It2>& __y) + { return __x._M_length == __y._M_length; } + + friend constexpr bool + operator==(const counted_iterator& __x, default_sentinel_t) + { return __x._M_length == 0; } + + template _It2> + friend constexpr strong_ordering + operator<=>(const counted_iterator& __x, + const counted_iterator<_It2>& __y) + { return __y._M_length <=> __x._M_length; } + + private: + template friend class counted_iterator; + + _It _M_current = _It(); + iter_difference_t<_It> _M_length = 0; + + friend constexpr iter_rvalue_reference_t<_It> + iter_move(const counted_iterator& __i) + noexcept(noexcept(ranges::iter_move(__i._M_current))) + requires input_iterator<_It> + { return ranges::iter_move(__i._M_current); } + + template _It2> + friend constexpr void + iter_swap(const counted_iterator& __x, + const counted_iterator<_It2>& __y) + noexcept(noexcept(ranges::iter_swap(__x._M_current, __y._M_current))) + { ranges::iter_swap(__x._M_current, __y._M_current); } + }; + + template + struct incrementable_traits> + { + using difference_type = iter_difference_t<_It>; + }; + + template + struct iterator_traits> : iterator_traits<_It> + { + using pointer = void; + }; +#endif // C++20 + + // @} group iterators + + template + auto + __niter_base(move_iterator<_Iterator> __it) + -> decltype(make_move_iterator(__niter_base(__it.base()))) + { return make_move_iterator(__niter_base(__it.base())); } + + template + struct __is_move_iterator > + { + enum { __value = 1 }; + typedef __true_type __type; + }; + + template + auto + __miter_base(move_iterator<_Iterator> __it) + -> decltype(__miter_base(__it.base())) + { return __miter_base(__it.base()); } + +#define _GLIBCXX_MAKE_MOVE_ITERATOR(_Iter) std::make_move_iterator(_Iter) +#define _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(_Iter) \ + std::__make_move_if_noexcept_iterator(_Iter) +#else +#define _GLIBCXX_MAKE_MOVE_ITERATOR(_Iter) (_Iter) +#define _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(_Iter) (_Iter) +#endif // C++11 + +#if __cpp_deduction_guides >= 201606 + // These helper traits are used for deduction guides + // of associative containers. + template + using __iter_key_t = remove_const_t< + typename iterator_traits<_InputIterator>::value_type::first_type>; + + template + using __iter_val_t = + typename iterator_traits<_InputIterator>::value_type::second_type; + + template + struct pair; + + template + using __iter_to_alloc_t = + pair>, + __iter_val_t<_InputIterator>>; +#endif // __cpp_deduction_guides + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_iterator_base_funcs.h b/resources/sources/avr-libstdcpp/include/bits/stl_iterator_base_funcs.h new file mode 100644 index 000000000..076b7781c --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_iterator_base_funcs.h @@ -0,0 +1,239 @@ +// Functions used by iterators -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_iterator_base_funcs.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + * + * This file contains all of the general iterator-related utility + * functions, such as distance() and advance(). + */ + +#ifndef _STL_ITERATOR_BASE_FUNCS_H +#define _STL_ITERATOR_BASE_FUNCS_H 1 + +#pragma GCC system_header + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + // Forward declaration for the overloads of __distance. + template struct _List_iterator; + template struct _List_const_iterator; +_GLIBCXX_END_NAMESPACE_CONTAINER + + template + inline _GLIBCXX14_CONSTEXPR + typename iterator_traits<_InputIterator>::difference_type + __distance(_InputIterator __first, _InputIterator __last, + input_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + + typename iterator_traits<_InputIterator>::difference_type __n = 0; + while (__first != __last) + { + ++__first; + ++__n; + } + return __n; + } + + template + inline _GLIBCXX14_CONSTEXPR + typename iterator_traits<_RandomAccessIterator>::difference_type + __distance(_RandomAccessIterator __first, _RandomAccessIterator __last, + random_access_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + return __last - __first; + } + +#if _GLIBCXX_USE_CXX11_ABI + // Forward declaration because of the qualified call in distance. + template + ptrdiff_t + __distance(_GLIBCXX_STD_C::_List_iterator<_Tp>, + _GLIBCXX_STD_C::_List_iterator<_Tp>, + input_iterator_tag); + + template + ptrdiff_t + __distance(_GLIBCXX_STD_C::_List_const_iterator<_Tp>, + _GLIBCXX_STD_C::_List_const_iterator<_Tp>, + input_iterator_tag); +#endif + + /** + * @brief A generalization of pointer arithmetic. + * @param __first An input iterator. + * @param __last An input iterator. + * @return The distance between them. + * + * Returns @c n such that __first + n == __last. This requires + * that @p __last must be reachable from @p __first. Note that @c + * n may be negative. + * + * For random access iterators, this uses their @c + and @c - operations + * and are constant time. For other %iterator classes they are linear time. + */ + template + inline _GLIBCXX17_CONSTEXPR + typename iterator_traits<_InputIterator>::difference_type + distance(_InputIterator __first, _InputIterator __last) + { + // concept requirements -- taken care of in __distance + return std::__distance(__first, __last, + std::__iterator_category(__first)); + } + + template + inline _GLIBCXX14_CONSTEXPR void + __advance(_InputIterator& __i, _Distance __n, input_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_assert(__n >= 0); + while (__n--) + ++__i; + } + + template + inline _GLIBCXX14_CONSTEXPR void + __advance(_BidirectionalIterator& __i, _Distance __n, + bidirectional_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + if (__n > 0) + while (__n--) + ++__i; + else + while (__n++) + --__i; + } + + template + inline _GLIBCXX14_CONSTEXPR void + __advance(_RandomAccessIterator& __i, _Distance __n, + random_access_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + if (__builtin_constant_p(__n) && __n == 1) + ++__i; + else if (__builtin_constant_p(__n) && __n == -1) + --__i; + else + __i += __n; + } + + /** + * @brief A generalization of pointer arithmetic. + * @param __i An input iterator. + * @param __n The @a delta by which to change @p __i. + * @return Nothing. + * + * This increments @p i by @p n. For bidirectional and random access + * iterators, @p __n may be negative, in which case @p __i is decremented. + * + * For random access iterators, this uses their @c + and @c - operations + * and are constant time. For other %iterator classes they are linear time. + */ + template + inline _GLIBCXX17_CONSTEXPR void + advance(_InputIterator& __i, _Distance __n) + { + // concept requirements -- taken care of in __advance + typename iterator_traits<_InputIterator>::difference_type __d = __n; + std::__advance(__i, __d, std::__iterator_category(__i)); + } + +#if __cplusplus >= 201103L + + template + inline _GLIBCXX17_CONSTEXPR _InputIterator + next(_InputIterator __x, typename + iterator_traits<_InputIterator>::difference_type __n = 1) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + std::advance(__x, __n); + return __x; + } + + template + inline _GLIBCXX17_CONSTEXPR _BidirectionalIterator + prev(_BidirectionalIterator __x, typename + iterator_traits<_BidirectionalIterator>::difference_type __n = 1) + { + // concept requirements + __glibcxx_function_requires(_BidirectionalIteratorConcept< + _BidirectionalIterator>) + std::advance(__x, -__n); + return __x; + } + +#endif // C++11 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_ITERATOR_BASE_FUNCS_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_iterator_base_types.h b/resources/sources/avr-libstdcpp/include/bits/stl_iterator_base_types.h new file mode 100644 index 000000000..aa02af59d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_iterator_base_types.h @@ -0,0 +1,271 @@ +// Types used in iterator implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_iterator_base_types.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{iterator} + * + * This file contains all of the general iterator-related utility types, + * such as iterator_traits and struct iterator. + */ + +#ifndef _STL_ITERATOR_BASE_TYPES_H +#define _STL_ITERATOR_BASE_TYPES_H 1 + +#pragma GCC system_header + +#include + +#if __cplusplus >= 201103L +# include // For __void_t, is_convertible +#endif + +#if __cplusplus > 201703L && __cpp_concepts >= 201907L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup iterators Iterators + * Abstractions for uniform iterating through various underlying types. + */ + //@{ + + /** + * @defgroup iterator_tags Iterator Tags + * These are empty types, used to distinguish different iterators. The + * distinction is not made by what they contain, but simply by what they + * are. Different underlying algorithms can then be used based on the + * different operations supported by different iterator types. + */ + //@{ + /// Marking input iterators. + struct input_iterator_tag { }; + + /// Marking output iterators. + struct output_iterator_tag { }; + + /// Forward iterators support a superset of input iterator operations. + struct forward_iterator_tag : public input_iterator_tag { }; + + /// Bidirectional iterators support a superset of forward iterator + /// operations. + struct bidirectional_iterator_tag : public forward_iterator_tag { }; + + /// Random-access iterators support a superset of bidirectional + /// iterator operations. + struct random_access_iterator_tag : public bidirectional_iterator_tag { }; + +#if __cplusplus > 201703L + /// Contiguous iterators point to objects stored contiguously in memory. + struct contiguous_iterator_tag : public random_access_iterator_tag { }; +#endif + //@} + + /** + * @brief Common %iterator class. + * + * This class does nothing but define nested typedefs. %Iterator classes + * can inherit from this class to save some work. The typedefs are then + * used in specializations and overloading. + * + * In particular, there are no default implementations of requirements + * such as @c operator++ and the like. (How could there be?) + */ + template + struct iterator + { + /// One of the @link iterator_tags tag types@endlink. + typedef _Category iterator_category; + /// The type "pointed to" by the iterator. + typedef _Tp value_type; + /// Distance between iterators is represented as this type. + typedef _Distance difference_type; + /// This type represents a pointer-to-value_type. + typedef _Pointer pointer; + /// This type represents a reference-to-value_type. + typedef _Reference reference; + }; + + /** + * @brief Traits class for iterators. + * + * This class does nothing but define nested typedefs. The general + * version simply @a forwards the nested typedefs from the Iterator + * argument. Specialized versions for pointers and pointers-to-const + * provide tighter, more correct semantics. + */ + template + struct iterator_traits; + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2408. SFINAE-friendly common_type/iterator_traits is missing in C++14 + template> + struct __iterator_traits { }; + +#if ! __cpp_lib_concepts + + template + struct __iterator_traits<_Iterator, + __void_t> + { + typedef typename _Iterator::iterator_category iterator_category; + typedef typename _Iterator::value_type value_type; + typedef typename _Iterator::difference_type difference_type; + typedef typename _Iterator::pointer pointer; + typedef typename _Iterator::reference reference; + }; +#endif // ! concepts + + template + struct iterator_traits + : public __iterator_traits<_Iterator> { }; + +#else // ! C++11 + template + struct iterator_traits + { + typedef typename _Iterator::iterator_category iterator_category; + typedef typename _Iterator::value_type value_type; + typedef typename _Iterator::difference_type difference_type; + typedef typename _Iterator::pointer pointer; + typedef typename _Iterator::reference reference; + }; +#endif // C++11 + +#if __cplusplus > 201703L + /// Partial specialization for object pointer types. + template +#if __cpp_concepts >= 201907L + requires is_object_v<_Tp> +#endif + struct iterator_traits<_Tp*> + { + using iterator_concept = contiguous_iterator_tag; + using iterator_category = random_access_iterator_tag; + using value_type = remove_cv_t<_Tp>; + using difference_type = ptrdiff_t; + using pointer = _Tp*; + using reference = _Tp&; + }; +#else + /// Partial specialization for pointer types. + template + struct iterator_traits<_Tp*> + { + typedef random_access_iterator_tag iterator_category; + typedef _Tp value_type; + typedef ptrdiff_t difference_type; + typedef _Tp* pointer; + typedef _Tp& reference; + }; + + /// Partial specialization for const pointer types. + template + struct iterator_traits + { + typedef random_access_iterator_tag iterator_category; + typedef _Tp value_type; + typedef ptrdiff_t difference_type; + typedef const _Tp* pointer; + typedef const _Tp& reference; + }; +#endif + + /** + * This function is not a part of the C++ standard but is syntactic + * sugar for internal library use only. + */ + template + inline _GLIBCXX_CONSTEXPR + typename iterator_traits<_Iter>::iterator_category + __iterator_category(const _Iter&) + { return typename iterator_traits<_Iter>::iterator_category(); } + + //@} + +#if __cplusplus >= 201103L + template + using __iterator_category_t + = typename iterator_traits<_Iter>::iterator_category; + + template + using _RequireInputIter = + __enable_if_t, + input_iterator_tag>::value>; + + template> + struct __is_random_access_iter + : is_base_of + { + typedef is_base_of _Base; + enum { __value = _Base::value }; + }; +#else + template, + typename _Cat = typename _Traits::iterator_category> + struct __is_random_access_iter + { enum { __value = __is_base_of(random_access_iterator_tag, _Cat) }; }; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_ITERATOR_BASE_TYPES_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_list.h b/resources/sources/avr-libstdcpp/include/bits/stl_list.h new file mode 100644 index 000000000..e7135e3e7 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_list.h @@ -0,0 +1,2127 @@ +// List implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_list.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{list} + */ + +#ifndef _STL_LIST_H +#define _STL_LIST_H 1 + +#include +#include +#if __cplusplus >= 201103L +#include +#include +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + namespace __detail + { + // Supporting structures are split into common and templated + // types; the latter publicly inherits from the former in an + // effort to reduce code duplication. This results in some + // "needless" static_cast'ing later on, but it's all safe + // downcasting. + + /// Common part of a node in the %list. + struct _List_node_base + { + _List_node_base* _M_next; + _List_node_base* _M_prev; + + static void + swap(_List_node_base& __x, _List_node_base& __y) _GLIBCXX_USE_NOEXCEPT; + + void + _M_transfer(_List_node_base* const __first, + _List_node_base* const __last) _GLIBCXX_USE_NOEXCEPT; + + void + _M_reverse() _GLIBCXX_USE_NOEXCEPT; + + void + _M_hook(_List_node_base* const __position) _GLIBCXX_USE_NOEXCEPT; + + void + _M_unhook() _GLIBCXX_USE_NOEXCEPT; + }; + + /// The %list node header. + struct _List_node_header : public _List_node_base + { +#if _GLIBCXX_USE_CXX11_ABI + std::size_t _M_size; +#endif + + _List_node_header() _GLIBCXX_NOEXCEPT + { _M_init(); } + +#if __cplusplus >= 201103L + _List_node_header(_List_node_header&& __x) noexcept + : _List_node_base{ __x._M_next, __x._M_prev } +# if _GLIBCXX_USE_CXX11_ABI + , _M_size(__x._M_size) +# endif + { + if (__x._M_base()->_M_next == __x._M_base()) + this->_M_next = this->_M_prev = this; + else + { + this->_M_next->_M_prev = this->_M_prev->_M_next = this->_M_base(); + __x._M_init(); + } + } + + void + _M_move_nodes(_List_node_header&& __x) + { + _List_node_base* const __xnode = __x._M_base(); + if (__xnode->_M_next == __xnode) + _M_init(); + else + { + _List_node_base* const __node = this->_M_base(); + __node->_M_next = __xnode->_M_next; + __node->_M_prev = __xnode->_M_prev; + __node->_M_next->_M_prev = __node->_M_prev->_M_next = __node; +# if _GLIBCXX_USE_CXX11_ABI + _M_size = __x._M_size; +# endif + __x._M_init(); + } + } +#endif + + void + _M_init() _GLIBCXX_NOEXCEPT + { + this->_M_next = this->_M_prev = this; +#if _GLIBCXX_USE_CXX11_ABI + this->_M_size = 0; +#endif + } + + private: + _List_node_base* _M_base() { return this; } + }; + } // namespace detail + +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /// An actual node in the %list. + template + struct _List_node : public __detail::_List_node_base + { +#if __cplusplus >= 201103L + __gnu_cxx::__aligned_membuf<_Tp> _M_storage; + _Tp* _M_valptr() { return _M_storage._M_ptr(); } + _Tp const* _M_valptr() const { return _M_storage._M_ptr(); } +#else + _Tp _M_data; + _Tp* _M_valptr() { return std::__addressof(_M_data); } + _Tp const* _M_valptr() const { return std::__addressof(_M_data); } +#endif + }; + + /** + * @brief A list::iterator. + * + * All the functions are op overloads. + */ + template + struct _List_iterator + { + typedef _List_iterator<_Tp> _Self; + typedef _List_node<_Tp> _Node; + + typedef ptrdiff_t difference_type; + typedef std::bidirectional_iterator_tag iterator_category; + typedef _Tp value_type; + typedef _Tp* pointer; + typedef _Tp& reference; + + _List_iterator() _GLIBCXX_NOEXCEPT + : _M_node() { } + + explicit + _List_iterator(__detail::_List_node_base* __x) _GLIBCXX_NOEXCEPT + : _M_node(__x) { } + + _Self + _M_const_cast() const _GLIBCXX_NOEXCEPT + { return *this; } + + // Must downcast from _List_node_base to _List_node to get to value. + reference + operator*() const _GLIBCXX_NOEXCEPT + { return *static_cast<_Node*>(_M_node)->_M_valptr(); } + + pointer + operator->() const _GLIBCXX_NOEXCEPT + { return static_cast<_Node*>(_M_node)->_M_valptr(); } + + _Self& + operator++() _GLIBCXX_NOEXCEPT + { + _M_node = _M_node->_M_next; + return *this; + } + + _Self + operator++(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _M_node->_M_next; + return __tmp; + } + + _Self& + operator--() _GLIBCXX_NOEXCEPT + { + _M_node = _M_node->_M_prev; + return *this; + } + + _Self + operator--(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _M_node->_M_prev; + return __tmp; + } + + friend bool + operator==(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node == __y._M_node; } + +#if __cpp_impl_three_way_comparison < 201907L + friend bool + operator!=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node != __y._M_node; } +#endif + + // The only member points to the %list element. + __detail::_List_node_base* _M_node; + }; + + /** + * @brief A list::const_iterator. + * + * All the functions are op overloads. + */ + template + struct _List_const_iterator + { + typedef _List_const_iterator<_Tp> _Self; + typedef const _List_node<_Tp> _Node; + typedef _List_iterator<_Tp> iterator; + + typedef ptrdiff_t difference_type; + typedef std::bidirectional_iterator_tag iterator_category; + typedef _Tp value_type; + typedef const _Tp* pointer; + typedef const _Tp& reference; + + _List_const_iterator() _GLIBCXX_NOEXCEPT + : _M_node() { } + + explicit + _List_const_iterator(const __detail::_List_node_base* __x) + _GLIBCXX_NOEXCEPT + : _M_node(__x) { } + + _List_const_iterator(const iterator& __x) _GLIBCXX_NOEXCEPT + : _M_node(__x._M_node) { } + + iterator + _M_const_cast() const _GLIBCXX_NOEXCEPT + { return iterator(const_cast<__detail::_List_node_base*>(_M_node)); } + + // Must downcast from List_node_base to _List_node to get to value. + reference + operator*() const _GLIBCXX_NOEXCEPT + { return *static_cast<_Node*>(_M_node)->_M_valptr(); } + + pointer + operator->() const _GLIBCXX_NOEXCEPT + { return static_cast<_Node*>(_M_node)->_M_valptr(); } + + _Self& + operator++() _GLIBCXX_NOEXCEPT + { + _M_node = _M_node->_M_next; + return *this; + } + + _Self + operator++(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _M_node->_M_next; + return __tmp; + } + + _Self& + operator--() _GLIBCXX_NOEXCEPT + { + _M_node = _M_node->_M_prev; + return *this; + } + + _Self + operator--(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _M_node->_M_prev; + return __tmp; + } + + friend bool + operator==(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node == __y._M_node; } + +#if __cpp_impl_three_way_comparison < 201907L + friend bool + operator!=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node != __y._M_node; } +#endif + + // The only member points to the %list element. + const __detail::_List_node_base* _M_node; + }; + +_GLIBCXX_BEGIN_NAMESPACE_CXX11 + /// See bits/stl_deque.h's _Deque_base for an explanation. + template + class _List_base + { + protected: + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Tp>::other _Tp_alloc_type; + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Tp_alloc_traits; + typedef typename _Tp_alloc_traits::template + rebind<_List_node<_Tp> >::other _Node_alloc_type; + typedef __gnu_cxx::__alloc_traits<_Node_alloc_type> _Node_alloc_traits; + +#if !_GLIBCXX_INLINE_VERSION + static size_t + _S_distance(const __detail::_List_node_base* __first, + const __detail::_List_node_base* __last) + { + size_t __n = 0; + while (__first != __last) + { + __first = __first->_M_next; + ++__n; + } + return __n; + } +#endif + + struct _List_impl + : public _Node_alloc_type + { + __detail::_List_node_header _M_node; + + _List_impl() _GLIBCXX_NOEXCEPT_IF( + is_nothrow_default_constructible<_Node_alloc_type>::value) + : _Node_alloc_type() + { } + + _List_impl(const _Node_alloc_type& __a) _GLIBCXX_NOEXCEPT + : _Node_alloc_type(__a) + { } + +#if __cplusplus >= 201103L + _List_impl(_List_impl&&) = default; + + _List_impl(_Node_alloc_type&& __a, _List_impl&& __x) + : _Node_alloc_type(std::move(__a)), _M_node(std::move(__x._M_node)) + { } + + _List_impl(_Node_alloc_type&& __a) noexcept + : _Node_alloc_type(std::move(__a)) + { } +#endif + }; + + _List_impl _M_impl; + +#if _GLIBCXX_USE_CXX11_ABI + size_t _M_get_size() const { return _M_impl._M_node._M_size; } + + void _M_set_size(size_t __n) { _M_impl._M_node._M_size = __n; } + + void _M_inc_size(size_t __n) { _M_impl._M_node._M_size += __n; } + + void _M_dec_size(size_t __n) { _M_impl._M_node._M_size -= __n; } + +# if !_GLIBCXX_INLINE_VERSION + size_t + _M_distance(const __detail::_List_node_base* __first, + const __detail::_List_node_base* __last) const + { return _S_distance(__first, __last); } + + // return the stored size + size_t _M_node_count() const { return _M_get_size(); } +# endif +#else + // dummy implementations used when the size is not stored + size_t _M_get_size() const { return 0; } + void _M_set_size(size_t) { } + void _M_inc_size(size_t) { } + void _M_dec_size(size_t) { } + +# if !_GLIBCXX_INLINE_VERSION + size_t _M_distance(const void*, const void*) const { return 0; } + + // count the number of nodes + size_t _M_node_count() const + { + return _S_distance(_M_impl._M_node._M_next, + std::__addressof(_M_impl._M_node)); + } +# endif +#endif + + typename _Node_alloc_traits::pointer + _M_get_node() + { return _Node_alloc_traits::allocate(_M_impl, 1); } + + void + _M_put_node(typename _Node_alloc_traits::pointer __p) _GLIBCXX_NOEXCEPT + { _Node_alloc_traits::deallocate(_M_impl, __p, 1); } + + public: + typedef _Alloc allocator_type; + + _Node_alloc_type& + _M_get_Node_allocator() _GLIBCXX_NOEXCEPT + { return _M_impl; } + + const _Node_alloc_type& + _M_get_Node_allocator() const _GLIBCXX_NOEXCEPT + { return _M_impl; } + +#if __cplusplus >= 201103L + _List_base() = default; +#else + _List_base() { } +#endif + + _List_base(const _Node_alloc_type& __a) _GLIBCXX_NOEXCEPT + : _M_impl(__a) + { } + +#if __cplusplus >= 201103L + _List_base(_List_base&&) = default; + +# if !_GLIBCXX_INLINE_VERSION + _List_base(_List_base&& __x, _Node_alloc_type&& __a) + : _M_impl(std::move(__a)) + { + if (__x._M_get_Node_allocator() == _M_get_Node_allocator()) + _M_move_nodes(std::move(__x)); + // else caller must move individual elements. + } +# endif + + // Used when allocator is_always_equal. + _List_base(_Node_alloc_type&& __a, _List_base&& __x) + : _M_impl(std::move(__a), std::move(__x._M_impl)) + { } + + // Used when allocator !is_always_equal. + _List_base(_Node_alloc_type&& __a) + : _M_impl(std::move(__a)) + { } + + void + _M_move_nodes(_List_base&& __x) + { _M_impl._M_node._M_move_nodes(std::move(__x._M_impl._M_node)); } +#endif + + // This is what actually destroys the list. + ~_List_base() _GLIBCXX_NOEXCEPT + { _M_clear(); } + + void + _M_clear() _GLIBCXX_NOEXCEPT; + + void + _M_init() _GLIBCXX_NOEXCEPT + { this->_M_impl._M_node._M_init(); } + }; + + /** + * @brief A standard container with linear time access to elements, + * and fixed time insertion/deletion at any point in the sequence. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Alloc Allocator type, defaults to allocator<_Tp>. + * + * Meets the requirements of a container, a + * reversible container, and a + * sequence, including the + * optional sequence requirements with the + * %exception of @c at and @c operator[]. + * + * This is a @e doubly @e linked %list. Traversal up and down the + * %list requires linear time, but adding and removing elements (or + * @e nodes) is done in constant time, regardless of where the + * change takes place. Unlike std::vector and std::deque, + * random-access iterators are not provided, so subscripting ( @c + * [] ) access is not allowed. For algorithms which only need + * sequential access, this lack makes no difference. + * + * Also unlike the other standard containers, std::list provides + * specialized algorithms %unique to linked lists, such as + * splicing, sorting, and in-place reversal. + * + * A couple points on memory allocation for list: + * + * First, we never actually allocate a Tp, we allocate + * List_node's and trust [20.1.5]/4 to DTRT. This is to ensure + * that after elements from %list are spliced into + * %list, destroying the memory of the second %list is a + * valid operation, i.e., Alloc1 giveth and Alloc2 taketh away. + * + * Second, a %list conceptually represented as + * @code + * A <---> B <---> C <---> D + * @endcode + * is actually circular; a link exists between A and D. The %list + * class holds (as its only data member) a private list::iterator + * pointing to @e D, not to @e A! To get to the head of the %list, + * we start at the tail and move forward by one. When this member + * iterator's next/previous pointers refer to itself, the %list is + * %empty. + */ + template > + class list : protected _List_base<_Tp, _Alloc> + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires2(_Tp, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L + static_assert(is_same::type, _Tp>::value, + "std::list must have a non-const, non-volatile value_type"); +# if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::list must have the same value_type as its allocator"); +# endif +#endif + + typedef _List_base<_Tp, _Alloc> _Base; + typedef typename _Base::_Tp_alloc_type _Tp_alloc_type; + typedef typename _Base::_Tp_alloc_traits _Tp_alloc_traits; + typedef typename _Base::_Node_alloc_type _Node_alloc_type; + typedef typename _Base::_Node_alloc_traits _Node_alloc_traits; + + public: + typedef _Tp value_type; + typedef typename _Tp_alloc_traits::pointer pointer; + typedef typename _Tp_alloc_traits::const_pointer const_pointer; + typedef typename _Tp_alloc_traits::reference reference; + typedef typename _Tp_alloc_traits::const_reference const_reference; + typedef _List_iterator<_Tp> iterator; + typedef _List_const_iterator<_Tp> const_iterator; + typedef std::reverse_iterator const_reverse_iterator; + typedef std::reverse_iterator reverse_iterator; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Alloc allocator_type; + + protected: + // Note that pointers-to-_Node's can be ctor-converted to + // iterator types. + typedef _List_node<_Tp> _Node; + + using _Base::_M_impl; + using _Base::_M_put_node; + using _Base::_M_get_node; + using _Base::_M_get_Node_allocator; + + /** + * @param __args An instance of user data. + * + * Allocates space for a new node and constructs a copy of + * @a __args in it. + */ +#if __cplusplus < 201103L + _Node* + _M_create_node(const value_type& __x) + { + _Node* __p = this->_M_get_node(); + __try + { + _Tp_alloc_type __alloc(_M_get_Node_allocator()); + __alloc.construct(__p->_M_valptr(), __x); + } + __catch(...) + { + _M_put_node(__p); + __throw_exception_again; + } + return __p; + } +#else + template + _Node* + _M_create_node(_Args&&... __args) + { + auto __p = this->_M_get_node(); + auto& __alloc = _M_get_Node_allocator(); + __allocated_ptr<_Node_alloc_type> __guard{__alloc, __p}; + _Node_alloc_traits::construct(__alloc, __p->_M_valptr(), + std::forward<_Args>(__args)...); + __guard = nullptr; + return __p; + } +#endif + +#if _GLIBCXX_USE_CXX11_ABI + static size_t + _S_distance(const_iterator __first, const_iterator __last) + { return std::distance(__first, __last); } + + // return the stored size + size_t + _M_node_count() const + { return this->_M_get_size(); } +#else + // dummy implementations used when the size is not stored + static size_t + _S_distance(const_iterator, const_iterator) + { return 0; } + + // count the number of nodes + size_t + _M_node_count() const + { return std::distance(begin(), end()); } +#endif + + public: + // [23.2.2.1] construct/copy/destroy + // (assign() and get_allocator() are also listed in this section) + + /** + * @brief Creates a %list with no elements. + */ +#if __cplusplus >= 201103L + list() = default; +#else + list() { } +#endif + + /** + * @brief Creates a %list with no elements. + * @param __a An allocator object. + */ + explicit + list(const allocator_type& __a) _GLIBCXX_NOEXCEPT + : _Base(_Node_alloc_type(__a)) { } + +#if __cplusplus >= 201103L + /** + * @brief Creates a %list with default constructed elements. + * @param __n The number of elements to initially create. + * @param __a An allocator object. + * + * This constructor fills the %list with @a __n default + * constructed elements. + */ + explicit + list(size_type __n, const allocator_type& __a = allocator_type()) + : _Base(_Node_alloc_type(__a)) + { _M_default_initialize(__n); } + + /** + * @brief Creates a %list with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __a An allocator object. + * + * This constructor fills the %list with @a __n copies of @a __value. + */ + list(size_type __n, const value_type& __value, + const allocator_type& __a = allocator_type()) + : _Base(_Node_alloc_type(__a)) + { _M_fill_initialize(__n, __value); } +#else + /** + * @brief Creates a %list with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __a An allocator object. + * + * This constructor fills the %list with @a __n copies of @a __value. + */ + explicit + list(size_type __n, const value_type& __value = value_type(), + const allocator_type& __a = allocator_type()) + : _Base(_Node_alloc_type(__a)) + { _M_fill_initialize(__n, __value); } +#endif + + /** + * @brief %List copy constructor. + * @param __x A %list of identical element and allocator types. + * + * The newly-created %list uses a copy of the allocation object used + * by @a __x (unless the allocator traits dictate a different object). + */ + list(const list& __x) + : _Base(_Node_alloc_traits:: + _S_select_on_copy(__x._M_get_Node_allocator())) + { _M_initialize_dispatch(__x.begin(), __x.end(), __false_type()); } + +#if __cplusplus >= 201103L + /** + * @brief %List move constructor. + * + * The newly-created %list contains the exact contents of the moved + * instance. The contents of the moved instance are a valid, but + * unspecified %list. + */ + list(list&&) = default; + + /** + * @brief Builds a %list from an initializer_list + * @param __l An initializer_list of value_type. + * @param __a An allocator object. + * + * Create a %list consisting of copies of the elements in the + * initializer_list @a __l. This is linear in __l.size(). + */ + list(initializer_list __l, + const allocator_type& __a = allocator_type()) + : _Base(_Node_alloc_type(__a)) + { _M_initialize_dispatch(__l.begin(), __l.end(), __false_type()); } + + list(const list& __x, const allocator_type& __a) + : _Base(_Node_alloc_type(__a)) + { _M_initialize_dispatch(__x.begin(), __x.end(), __false_type()); } + + private: + list(list&& __x, const allocator_type& __a, true_type) noexcept + : _Base(_Node_alloc_type(__a), std::move(__x)) + { } + + list(list&& __x, const allocator_type& __a, false_type) + : _Base(_Node_alloc_type(__a)) + { + if (__x._M_get_Node_allocator() == this->_M_get_Node_allocator()) + this->_M_move_nodes(std::move(__x)); + else + insert(begin(), std::__make_move_if_noexcept_iterator(__x.begin()), + std::__make_move_if_noexcept_iterator(__x.end())); + } + + public: + list(list&& __x, const allocator_type& __a) + noexcept(_Node_alloc_traits::_S_always_equal()) + : list(std::move(__x), __a, + typename _Node_alloc_traits::is_always_equal{}) + { } +#endif + + /** + * @brief Builds a %list from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __a An allocator object. + * + * Create a %list consisting of copies of the elements from + * [@a __first,@a __last). This is linear in N (where N is + * distance(@a __first,@a __last)). + */ +#if __cplusplus >= 201103L + template> + list(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(_Node_alloc_type(__a)) + { _M_initialize_dispatch(__first, __last, __false_type()); } +#else + template + list(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(_Node_alloc_type(__a)) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_initialize_dispatch(__first, __last, _Integral()); + } +#endif + +#if __cplusplus >= 201103L + /** + * No explicit dtor needed as the _Base dtor takes care of + * things. The _Base dtor only erases the elements, and note + * that if the elements themselves are pointers, the pointed-to + * memory is not touched in any way. Managing the pointer is + * the user's responsibility. + */ + ~list() = default; +#endif + + /** + * @brief %List assignment operator. + * @param __x A %list of identical element and allocator types. + * + * All the elements of @a __x are copied. + * + * Whether the allocator is copied depends on the allocator traits. + */ + list& + operator=(const list& __x); + +#if __cplusplus >= 201103L + /** + * @brief %List move assignment operator. + * @param __x A %list of identical element and allocator types. + * + * The contents of @a __x are moved into this %list (without copying). + * + * Afterwards @a __x is a valid, but unspecified %list + * + * Whether the allocator is moved depends on the allocator traits. + */ + list& + operator=(list&& __x) + noexcept(_Node_alloc_traits::_S_nothrow_move()) + { + constexpr bool __move_storage = + _Node_alloc_traits::_S_propagate_on_move_assign() + || _Node_alloc_traits::_S_always_equal(); + _M_move_assign(std::move(__x), __bool_constant<__move_storage>()); + return *this; + } + + /** + * @brief %List initializer list assignment operator. + * @param __l An initializer_list of value_type. + * + * Replace the contents of the %list with copies of the elements + * in the initializer_list @a __l. This is linear in l.size(). + */ + list& + operator=(initializer_list __l) + { + this->assign(__l.begin(), __l.end()); + return *this; + } +#endif + + /** + * @brief Assigns a given value to a %list. + * @param __n Number of elements to be assigned. + * @param __val Value to be assigned. + * + * This function fills a %list with @a __n copies of the given + * value. Note that the assignment completely changes the %list + * and that the resulting %list's size is the same as the number + * of elements assigned. + */ + void + assign(size_type __n, const value_type& __val) + { _M_fill_assign(__n, __val); } + + /** + * @brief Assigns a range to a %list. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function fills a %list with copies of the elements in the + * range [@a __first,@a __last). + * + * Note that the assignment completely changes the %list and + * that the resulting %list's size is the same as the number of + * elements assigned. + */ +#if __cplusplus >= 201103L + template> + void + assign(_InputIterator __first, _InputIterator __last) + { _M_assign_dispatch(__first, __last, __false_type()); } +#else + template + void + assign(_InputIterator __first, _InputIterator __last) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_assign_dispatch(__first, __last, _Integral()); + } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Assigns an initializer_list to a %list. + * @param __l An initializer_list of value_type. + * + * Replace the contents of the %list with copies of the elements + * in the initializer_list @a __l. This is linear in __l.size(). + */ + void + assign(initializer_list __l) + { this->_M_assign_dispatch(__l.begin(), __l.end(), __false_type()); } +#endif + + /// Get a copy of the memory allocation object. + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_Base::_M_get_Node_allocator()); } + + // iterators + /** + * Returns a read/write iterator that points to the first element in the + * %list. Iteration is done in ordinary element order. + */ + iterator + begin() _GLIBCXX_NOEXCEPT + { return iterator(this->_M_impl._M_node._M_next); } + + /** + * Returns a read-only (constant) iterator that points to the + * first element in the %list. Iteration is done in ordinary + * element order. + */ + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return const_iterator(this->_M_impl._M_node._M_next); } + + /** + * Returns a read/write iterator that points one past the last + * element in the %list. Iteration is done in ordinary element + * order. + */ + iterator + end() _GLIBCXX_NOEXCEPT + { return iterator(&this->_M_impl._M_node); } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %list. Iteration is done in ordinary + * element order. + */ + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return const_iterator(&this->_M_impl._M_node); } + + /** + * Returns a read/write reverse iterator that points to the last + * element in the %list. Iteration is done in reverse element + * order. + */ + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return reverse_iterator(end()); } + + /** + * Returns a read-only (constant) reverse iterator that points to + * the last element in the %list. Iteration is done in reverse + * element order. + */ + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(end()); } + + /** + * Returns a read/write reverse iterator that points to one + * before the first element in the %list. Iteration is done in + * reverse element order. + */ + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return reverse_iterator(begin()); } + + /** + * Returns a read-only (constant) reverse iterator that points to one + * before the first element in the %list. Iteration is done in reverse + * element order. + */ + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(begin()); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the + * first element in the %list. Iteration is done in ordinary + * element order. + */ + const_iterator + cbegin() const noexcept + { return const_iterator(this->_M_impl._M_node._M_next); } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %list. Iteration is done in ordinary + * element order. + */ + const_iterator + cend() const noexcept + { return const_iterator(&this->_M_impl._M_node); } + + /** + * Returns a read-only (constant) reverse iterator that points to + * the last element in the %list. Iteration is done in reverse + * element order. + */ + const_reverse_iterator + crbegin() const noexcept + { return const_reverse_iterator(end()); } + + /** + * Returns a read-only (constant) reverse iterator that points to one + * before the first element in the %list. Iteration is done in reverse + * element order. + */ + const_reverse_iterator + crend() const noexcept + { return const_reverse_iterator(begin()); } +#endif + + // [23.2.2.2] capacity + /** + * Returns true if the %list is empty. (Thus begin() would equal + * end().) + */ + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_node._M_next == &this->_M_impl._M_node; } + + /** Returns the number of elements in the %list. */ + size_type + size() const _GLIBCXX_NOEXCEPT + { return _M_node_count(); } + + /** Returns the size() of the largest possible %list. */ + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _Node_alloc_traits::max_size(_M_get_Node_allocator()); } + +#if __cplusplus >= 201103L + /** + * @brief Resizes the %list to the specified number of elements. + * @param __new_size Number of elements the %list should contain. + * + * This function will %resize the %list to the specified number + * of elements. If the number is smaller than the %list's + * current size the %list is truncated, otherwise default + * constructed elements are appended. + */ + void + resize(size_type __new_size); + + /** + * @brief Resizes the %list to the specified number of elements. + * @param __new_size Number of elements the %list should contain. + * @param __x Data with which new elements should be populated. + * + * This function will %resize the %list to the specified number + * of elements. If the number is smaller than the %list's + * current size the %list is truncated, otherwise the %list is + * extended and new elements are populated with given data. + */ + void + resize(size_type __new_size, const value_type& __x); +#else + /** + * @brief Resizes the %list to the specified number of elements. + * @param __new_size Number of elements the %list should contain. + * @param __x Data with which new elements should be populated. + * + * This function will %resize the %list to the specified number + * of elements. If the number is smaller than the %list's + * current size the %list is truncated, otherwise the %list is + * extended and new elements are populated with given data. + */ + void + resize(size_type __new_size, value_type __x = value_type()); +#endif + + // element access + /** + * Returns a read/write reference to the data at the first + * element of the %list. + */ + reference + front() _GLIBCXX_NOEXCEPT + { return *begin(); } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %list. + */ + const_reference + front() const _GLIBCXX_NOEXCEPT + { return *begin(); } + + /** + * Returns a read/write reference to the data at the last element + * of the %list. + */ + reference + back() _GLIBCXX_NOEXCEPT + { + iterator __tmp = end(); + --__tmp; + return *__tmp; + } + + /** + * Returns a read-only (constant) reference to the data at the last + * element of the %list. + */ + const_reference + back() const _GLIBCXX_NOEXCEPT + { + const_iterator __tmp = end(); + --__tmp; + return *__tmp; + } + + // [23.2.2.3] modifiers + /** + * @brief Add data to the front of the %list. + * @param __x Data to be added. + * + * This is a typical stack operation. The function creates an + * element at the front of the %list and assigns the given data + * to it. Due to the nature of a %list this operation can be + * done in constant time, and does not invalidate iterators and + * references. + */ + void + push_front(const value_type& __x) + { this->_M_insert(begin(), __x); } + +#if __cplusplus >= 201103L + void + push_front(value_type&& __x) + { this->_M_insert(begin(), std::move(__x)); } + + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_front(_Args&&... __args) + { + this->_M_insert(begin(), std::forward<_Args>(__args)...); +#if __cplusplus > 201402L + return front(); +#endif + } +#endif + + /** + * @brief Removes first element. + * + * This is a typical stack operation. It shrinks the %list by + * one. Due to the nature of a %list this operation can be done + * in constant time, and only invalidates iterators/references to + * the element being removed. + * + * Note that no data is returned, and if the first element's data + * is needed, it should be retrieved before pop_front() is + * called. + */ + void + pop_front() _GLIBCXX_NOEXCEPT + { this->_M_erase(begin()); } + + /** + * @brief Add data to the end of the %list. + * @param __x Data to be added. + * + * This is a typical stack operation. The function creates an + * element at the end of the %list and assigns the given data to + * it. Due to the nature of a %list this operation can be done + * in constant time, and does not invalidate iterators and + * references. + */ + void + push_back(const value_type& __x) + { this->_M_insert(end(), __x); } + +#if __cplusplus >= 201103L + void + push_back(value_type&& __x) + { this->_M_insert(end(), std::move(__x)); } + + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_back(_Args&&... __args) + { + this->_M_insert(end(), std::forward<_Args>(__args)...); +#if __cplusplus > 201402L + return back(); +#endif + } +#endif + + /** + * @brief Removes last element. + * + * This is a typical stack operation. It shrinks the %list by + * one. Due to the nature of a %list this operation can be done + * in constant time, and only invalidates iterators/references to + * the element being removed. + * + * Note that no data is returned, and if the last element's data + * is needed, it should be retrieved before pop_back() is called. + */ + void + pop_back() _GLIBCXX_NOEXCEPT + { this->_M_erase(iterator(this->_M_impl._M_node._M_prev)); } + +#if __cplusplus >= 201103L + /** + * @brief Constructs object in %list before specified iterator. + * @param __position A const_iterator into the %list. + * @param __args Arguments. + * @return An iterator that points to the inserted data. + * + * This function will insert an object of type T constructed + * with T(std::forward(args)...) before the specified + * location. Due to the nature of a %list this operation can + * be done in constant time, and does not invalidate iterators + * and references. + */ + template + iterator + emplace(const_iterator __position, _Args&&... __args); + + /** + * @brief Inserts given value into %list before specified iterator. + * @param __position A const_iterator into the %list. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value before + * the specified location. Due to the nature of a %list this + * operation can be done in constant time, and does not + * invalidate iterators and references. + */ + iterator + insert(const_iterator __position, const value_type& __x); +#else + /** + * @brief Inserts given value into %list before specified iterator. + * @param __position An iterator into the %list. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value before + * the specified location. Due to the nature of a %list this + * operation can be done in constant time, and does not + * invalidate iterators and references. + */ + iterator + insert(iterator __position, const value_type& __x); +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts given rvalue into %list before specified iterator. + * @param __position A const_iterator into the %list. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given rvalue before + * the specified location. Due to the nature of a %list this + * operation can be done in constant time, and does not + * invalidate iterators and references. + */ + iterator + insert(const_iterator __position, value_type&& __x) + { return emplace(__position, std::move(__x)); } + + /** + * @brief Inserts the contents of an initializer_list into %list + * before specified const_iterator. + * @param __p A const_iterator into the %list. + * @param __l An initializer_list of value_type. + * @return An iterator pointing to the first element inserted + * (or __position). + * + * This function will insert copies of the data in the + * initializer_list @a l into the %list before the location + * specified by @a p. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + iterator + insert(const_iterator __p, initializer_list __l) + { return this->insert(__p, __l.begin(), __l.end()); } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts a number of copies of given data into the %list. + * @param __position A const_iterator into the %list. + * @param __n Number of elements to be inserted. + * @param __x Data to be inserted. + * @return An iterator pointing to the first element inserted + * (or __position). + * + * This function will insert a specified number of copies of the + * given data before the location specified by @a position. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + iterator + insert(const_iterator __position, size_type __n, const value_type& __x); +#else + /** + * @brief Inserts a number of copies of given data into the %list. + * @param __position An iterator into the %list. + * @param __n Number of elements to be inserted. + * @param __x Data to be inserted. + * + * This function will insert a specified number of copies of the + * given data before the location specified by @a position. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + void + insert(iterator __position, size_type __n, const value_type& __x) + { + list __tmp(__n, __x, get_allocator()); + splice(__position, __tmp); + } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts a range into the %list. + * @param __position A const_iterator into the %list. + * @param __first An input iterator. + * @param __last An input iterator. + * @return An iterator pointing to the first element inserted + * (or __position). + * + * This function will insert copies of the data in the range [@a + * first,@a last) into the %list before the location specified by + * @a position. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + template> + iterator + insert(const_iterator __position, _InputIterator __first, + _InputIterator __last); +#else + /** + * @brief Inserts a range into the %list. + * @param __position An iterator into the %list. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function will insert copies of the data in the range [@a + * first,@a last) into the %list before the location specified by + * @a position. + * + * This operation is linear in the number of elements inserted and + * does not invalidate iterators and references. + */ + template + void + insert(iterator __position, _InputIterator __first, + _InputIterator __last) + { + list __tmp(__first, __last, get_allocator()); + splice(__position, __tmp); + } +#endif + + /** + * @brief Remove element at given position. + * @param __position Iterator pointing to element to be erased. + * @return An iterator pointing to the next element (or end()). + * + * This function will erase the element at the given position and thus + * shorten the %list by one. + * + * Due to the nature of a %list this operation can be done in + * constant time, and only invalidates iterators/references to + * the element being removed. The user is also cautioned that + * this function only erases the element, and that if the element + * is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + iterator +#if __cplusplus >= 201103L + erase(const_iterator __position) noexcept; +#else + erase(iterator __position); +#endif + + /** + * @brief Remove a range of elements. + * @param __first Iterator pointing to the first element to be erased. + * @param __last Iterator pointing to one past the last element to be + * erased. + * @return An iterator pointing to the element pointed to by @a last + * prior to erasing (or end()). + * + * This function will erase the elements in the range @a + * [first,last) and shorten the %list accordingly. + * + * This operation is linear time in the size of the range and only + * invalidates iterators/references to the element being removed. + * The user is also cautioned that this function only erases the + * elements, and that if the elements themselves are pointers, the + * pointed-to memory is not touched in any way. Managing the pointer + * is the user's responsibility. + */ + iterator +#if __cplusplus >= 201103L + erase(const_iterator __first, const_iterator __last) noexcept +#else + erase(iterator __first, iterator __last) +#endif + { + while (__first != __last) + __first = erase(__first); + return __last._M_const_cast(); + } + + /** + * @brief Swaps data with another %list. + * @param __x A %list of the same element and allocator types. + * + * This exchanges the elements between two lists in constant + * time. Note that the global std::swap() function is + * specialized such that std::swap(l1,l2) will feed to this + * function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(list& __x) _GLIBCXX_NOEXCEPT + { + __detail::_List_node_base::swap(this->_M_impl._M_node, + __x._M_impl._M_node); + + size_t __xsize = __x._M_get_size(); + __x._M_set_size(this->_M_get_size()); + this->_M_set_size(__xsize); + + _Node_alloc_traits::_S_on_swap(this->_M_get_Node_allocator(), + __x._M_get_Node_allocator()); + } + + /** + * Erases all the elements. Note that this function only erases + * the elements, and that if the elements themselves are + * pointers, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { + _Base::_M_clear(); + _Base::_M_init(); + } + + // [23.2.2.4] list operations + /** + * @brief Insert contents of another %list. + * @param __position Iterator referencing the element to insert before. + * @param __x Source list. + * + * The elements of @a __x are inserted in constant time in front of + * the element referenced by @a __position. @a __x becomes an empty + * list. + * + * Requires this != @a __x. + */ + void +#if __cplusplus >= 201103L + splice(const_iterator __position, list&& __x) noexcept +#else + splice(iterator __position, list& __x) +#endif + { + if (!__x.empty()) + { + _M_check_equal_allocators(__x); + + this->_M_transfer(__position._M_const_cast(), + __x.begin(), __x.end()); + + this->_M_inc_size(__x._M_get_size()); + __x._M_set_size(0); + } + } + +#if __cplusplus >= 201103L + void + splice(const_iterator __position, list& __x) noexcept + { splice(__position, std::move(__x)); } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Insert element from another %list. + * @param __position Const_iterator referencing the element to + * insert before. + * @param __x Source list. + * @param __i Const_iterator referencing the element to move. + * + * Removes the element in list @a __x referenced by @a __i and + * inserts it into the current list before @a __position. + */ + void + splice(const_iterator __position, list&& __x, const_iterator __i) noexcept +#else + /** + * @brief Insert element from another %list. + * @param __position Iterator referencing the element to insert before. + * @param __x Source list. + * @param __i Iterator referencing the element to move. + * + * Removes the element in list @a __x referenced by @a __i and + * inserts it into the current list before @a __position. + */ + void + splice(iterator __position, list& __x, iterator __i) +#endif + { + iterator __j = __i._M_const_cast(); + ++__j; + if (__position == __i || __position == __j) + return; + + if (this != std::__addressof(__x)) + _M_check_equal_allocators(__x); + + this->_M_transfer(__position._M_const_cast(), + __i._M_const_cast(), __j); + + this->_M_inc_size(1); + __x._M_dec_size(1); + } + +#if __cplusplus >= 201103L + /** + * @brief Insert element from another %list. + * @param __position Const_iterator referencing the element to + * insert before. + * @param __x Source list. + * @param __i Const_iterator referencing the element to move. + * + * Removes the element in list @a __x referenced by @a __i and + * inserts it into the current list before @a __position. + */ + void + splice(const_iterator __position, list& __x, const_iterator __i) noexcept + { splice(__position, std::move(__x), __i); } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Insert range from another %list. + * @param __position Const_iterator referencing the element to + * insert before. + * @param __x Source list. + * @param __first Const_iterator referencing the start of range in x. + * @param __last Const_iterator referencing the end of range in x. + * + * Removes elements in the range [__first,__last) and inserts them + * before @a __position in constant time. + * + * Undefined if @a __position is in [__first,__last). + */ + void + splice(const_iterator __position, list&& __x, const_iterator __first, + const_iterator __last) noexcept +#else + /** + * @brief Insert range from another %list. + * @param __position Iterator referencing the element to insert before. + * @param __x Source list. + * @param __first Iterator referencing the start of range in x. + * @param __last Iterator referencing the end of range in x. + * + * Removes elements in the range [__first,__last) and inserts them + * before @a __position in constant time. + * + * Undefined if @a __position is in [__first,__last). + */ + void + splice(iterator __position, list& __x, iterator __first, + iterator __last) +#endif + { + if (__first != __last) + { + if (this != std::__addressof(__x)) + _M_check_equal_allocators(__x); + + size_t __n = _S_distance(__first, __last); + this->_M_inc_size(__n); + __x._M_dec_size(__n); + + this->_M_transfer(__position._M_const_cast(), + __first._M_const_cast(), + __last._M_const_cast()); + } + } + +#if __cplusplus >= 201103L + /** + * @brief Insert range from another %list. + * @param __position Const_iterator referencing the element to + * insert before. + * @param __x Source list. + * @param __first Const_iterator referencing the start of range in x. + * @param __last Const_iterator referencing the end of range in x. + * + * Removes elements in the range [__first,__last) and inserts them + * before @a __position in constant time. + * + * Undefined if @a __position is in [__first,__last). + */ + void + splice(const_iterator __position, list& __x, const_iterator __first, + const_iterator __last) noexcept + { splice(__position, std::move(__x), __first, __last); } +#endif + + private: +#if __cplusplus > 201703L +# define __cpp_lib_list_remove_return_type 201806L + typedef size_type __remove_return_type; +# define _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG \ + __attribute__((__abi_tag__("__cxx20"))) +#else + typedef void __remove_return_type; +# define _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG +#endif + public: + + /** + * @brief Remove all elements equal to value. + * @param __value The value to remove. + * + * Removes every element in the list equal to @a value. + * Remaining elements stay in list order. Note that this + * function only erases the elements, and that if the elements + * themselves are pointers, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG + __remove_return_type + remove(const _Tp& __value); + + /** + * @brief Remove all elements satisfying a predicate. + * @tparam _Predicate Unary predicate function or object. + * + * Removes every element in the list for which the predicate + * returns true. Remaining elements stay in list order. Note + * that this function only erases the elements, and that if the + * elements themselves are pointers, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + */ + template + __remove_return_type + remove_if(_Predicate); + + /** + * @brief Remove consecutive duplicate elements. + * + * For each consecutive set of elements with the same value, + * remove all but the first one. Remaining elements stay in + * list order. Note that this function only erases the + * elements, and that if the elements themselves are pointers, + * the pointed-to memory is not touched in any way. Managing + * the pointer is the user's responsibility. + */ + _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG + __remove_return_type + unique(); + + /** + * @brief Remove consecutive elements satisfying a predicate. + * @tparam _BinaryPredicate Binary predicate function or object. + * + * For each consecutive set of elements [first,last) that + * satisfy predicate(first,i) where i is an iterator in + * [first,last), remove all but the first one. Remaining + * elements stay in list order. Note that this function only + * erases the elements, and that if the elements themselves are + * pointers, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + template + __remove_return_type + unique(_BinaryPredicate); + +#undef _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG + + /** + * @brief Merge sorted lists. + * @param __x Sorted list to merge. + * + * Assumes that both @a __x and this list are sorted according to + * operator<(). Merges elements of @a __x into this list in + * sorted order, leaving @a __x empty when complete. Elements in + * this list precede elements in @a __x that are equal. + */ +#if __cplusplus >= 201103L + void + merge(list&& __x); + + void + merge(list& __x) + { merge(std::move(__x)); } +#else + void + merge(list& __x); +#endif + + /** + * @brief Merge sorted lists according to comparison function. + * @tparam _StrictWeakOrdering Comparison function defining + * sort order. + * @param __x Sorted list to merge. + * @param __comp Comparison functor. + * + * Assumes that both @a __x and this list are sorted according to + * StrictWeakOrdering. Merges elements of @a __x into this list + * in sorted order, leaving @a __x empty when complete. Elements + * in this list precede elements in @a __x that are equivalent + * according to StrictWeakOrdering(). + */ +#if __cplusplus >= 201103L + template + void + merge(list&& __x, _StrictWeakOrdering __comp); + + template + void + merge(list& __x, _StrictWeakOrdering __comp) + { merge(std::move(__x), __comp); } +#else + template + void + merge(list& __x, _StrictWeakOrdering __comp); +#endif + + /** + * @brief Reverse the elements in list. + * + * Reverse the order of elements in the list in linear time. + */ + void + reverse() _GLIBCXX_NOEXCEPT + { this->_M_impl._M_node._M_reverse(); } + + /** + * @brief Sort the elements. + * + * Sorts the elements of this list in NlogN time. Equivalent + * elements remain in list order. + */ + void + sort(); + + /** + * @brief Sort the elements according to comparison function. + * + * Sorts the elements of this list in NlogN time. Equivalent + * elements remain in list order. + */ + template + void + sort(_StrictWeakOrdering); + + protected: + // Internal constructor functions follow. + + // Called by the range constructor to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_initialize_dispatch(_Integer __n, _Integer __x, __true_type) + { _M_fill_initialize(static_cast(__n), __x); } + + // Called by the range constructor to implement [23.1.1]/9 + template + void + _M_initialize_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { + for (; __first != __last; ++__first) +#if __cplusplus >= 201103L + emplace_back(*__first); +#else + push_back(*__first); +#endif + } + + // Called by list(n,v,a), and the range constructor when it turns out + // to be the same thing. + void + _M_fill_initialize(size_type __n, const value_type& __x) + { + for (; __n; --__n) + push_back(__x); + } + +#if __cplusplus >= 201103L + // Called by list(n). + void + _M_default_initialize(size_type __n) + { + for (; __n; --__n) + emplace_back(); + } + + // Called by resize(sz). + void + _M_default_append(size_type __n); +#endif + + // Internal assign functions follow. + + // Called by the range assign to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_assign_dispatch(_Integer __n, _Integer __val, __true_type) + { _M_fill_assign(__n, __val); } + + // Called by the range assign to implement [23.1.1]/9 + template + void + _M_assign_dispatch(_InputIterator __first, _InputIterator __last, + __false_type); + + // Called by assign(n,t), and the range assign when it turns out + // to be the same thing. + void + _M_fill_assign(size_type __n, const value_type& __val); + + + // Moves the elements from [first,last) before position. + void + _M_transfer(iterator __position, iterator __first, iterator __last) + { __position._M_node->_M_transfer(__first._M_node, __last._M_node); } + + // Inserts new element at position given and with value given. +#if __cplusplus < 201103L + void + _M_insert(iterator __position, const value_type& __x) + { + _Node* __tmp = _M_create_node(__x); + __tmp->_M_hook(__position._M_node); + this->_M_inc_size(1); + } +#else + template + void + _M_insert(iterator __position, _Args&&... __args) + { + _Node* __tmp = _M_create_node(std::forward<_Args>(__args)...); + __tmp->_M_hook(__position._M_node); + this->_M_inc_size(1); + } +#endif + + // Erases element at position given. + void + _M_erase(iterator __position) _GLIBCXX_NOEXCEPT + { + this->_M_dec_size(1); + __position._M_node->_M_unhook(); + _Node* __n = static_cast<_Node*>(__position._M_node); +#if __cplusplus >= 201103L + _Node_alloc_traits::destroy(_M_get_Node_allocator(), __n->_M_valptr()); +#else + _Tp_alloc_type(_M_get_Node_allocator()).destroy(__n->_M_valptr()); +#endif + + _M_put_node(__n); + } + + // To implement the splice (and merge) bits of N1599. + void + _M_check_equal_allocators(list& __x) _GLIBCXX_NOEXCEPT + { + if (std::__alloc_neq:: + _S_do_it(_M_get_Node_allocator(), __x._M_get_Node_allocator())) + __builtin_abort(); + } + + // Used to implement resize. + const_iterator + _M_resize_pos(size_type& __new_size) const; + +#if __cplusplus >= 201103L + void + _M_move_assign(list&& __x, true_type) noexcept + { + this->_M_clear(); + this->_M_move_nodes(std::move(__x)); + std::__alloc_on_move(this->_M_get_Node_allocator(), + __x._M_get_Node_allocator()); + } + + void + _M_move_assign(list&& __x, false_type) + { + if (__x._M_get_Node_allocator() == this->_M_get_Node_allocator()) + _M_move_assign(std::move(__x), true_type{}); + else + // The rvalue's allocator cannot be moved, or is not equal, + // so we need to individually move each element. + _M_assign_dispatch(std::make_move_iterator(__x.begin()), + std::make_move_iterator(__x.end()), + __false_type{}); + } +#endif + }; + +#if __cpp_deduction_guides >= 201606 + template::value_type, + typename _Allocator = allocator<_ValT>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireAllocator<_Allocator>> + list(_InputIterator, _InputIterator, _Allocator = _Allocator()) + -> list<_ValT, _Allocator>; +#endif + +_GLIBCXX_END_NAMESPACE_CXX11 + + /** + * @brief List equality comparison. + * @param __x A %list. + * @param __y A %list of the same type as @a __x. + * @return True iff the size and elements of the lists are equal. + * + * This is an equivalence relation. It is linear in the size of + * the lists. Lists are considered equivalent if their sizes are + * equal, and if corresponding elements compare equal. + */ + template + inline bool + operator==(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { +#if _GLIBCXX_USE_CXX11_ABI + if (__x.size() != __y.size()) + return false; +#endif + + typedef typename list<_Tp, _Alloc>::const_iterator const_iterator; + const_iterator __end1 = __x.end(); + const_iterator __end2 = __y.end(); + + const_iterator __i1 = __x.begin(); + const_iterator __i2 = __y.begin(); + while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2) + { + ++__i1; + ++__i2; + } + return __i1 == __end1 && __i2 == __end2; + } + +#if __cpp_lib_three_way_comparison +/** + * @brief List ordering relation. + * @param __x A `list`. + * @param __y A `list` of the same type as `__x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t<_Tp> + operator<=>(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { + return std::lexicographical_compare_three_way(__x.begin(), __x.end(), + __y.begin(), __y.end(), + __detail::__synth3way); + } +#else + /** + * @brief List ordering relation. + * @param __x A %list. + * @param __y A %list of the same type as @a __x. + * @return True iff @a __x is lexicographically less than @a __y. + * + * This is a total ordering relation. It is linear in the size of the + * lists. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { return std::lexicographical_compare(__x.begin(), __x.end(), + __y.begin(), __y.end()); } + + /// Based on operator== + template + inline bool + operator!=(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::list::swap(). + template + inline void + swap(list<_Tp, _Alloc>& __x, list<_Tp, _Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if _GLIBCXX_USE_CXX11_ABI + + // Detect when distance is used to compute the size of the whole list. + template + inline ptrdiff_t + __distance(_GLIBCXX_STD_C::_List_iterator<_Tp> __first, + _GLIBCXX_STD_C::_List_iterator<_Tp> __last, + input_iterator_tag __tag) + { + typedef _GLIBCXX_STD_C::_List_const_iterator<_Tp> _CIter; + return std::__distance(_CIter(__first), _CIter(__last), __tag); + } + + template + inline ptrdiff_t + __distance(_GLIBCXX_STD_C::_List_const_iterator<_Tp> __first, + _GLIBCXX_STD_C::_List_const_iterator<_Tp> __last, + input_iterator_tag) + { + typedef __detail::_List_node_header _Sentinel; + _GLIBCXX_STD_C::_List_const_iterator<_Tp> __beyond = __last; + ++__beyond; + const bool __whole = __first == __beyond; + if (__builtin_constant_p (__whole) && __whole) + return static_cast(__last._M_node)->_M_size; + + ptrdiff_t __n = 0; + while (__first != __last) + { + ++__first; + ++__n; + } + return __n; + } +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_LIST_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_map.h b/resources/sources/avr-libstdcpp/include/bits/stl_map.h new file mode 100644 index 000000000..2772d1146 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_map.h @@ -0,0 +1,1568 @@ +// Map implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_map.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{map} + */ + +#ifndef _STL_MAP_H +#define _STL_MAP_H 1 + +#include +#include +#if __cplusplus >= 201103L +#include +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + class multimap; + + /** + * @brief A standard container made up of (key,value) pairs, which can be + * retrieved based on a key, in logarithmic time. + * + * @ingroup associative_containers + * + * @tparam _Key Type of key objects. + * @tparam _Tp Type of mapped objects. + * @tparam _Compare Comparison function object type, defaults to less<_Key>. + * @tparam _Alloc Allocator type, defaults to + * allocator. + * + * Meets the requirements of a container, a + * reversible container, and an + * associative container (using unique keys). + * For a @c map the key_type is Key, the mapped_type is T, and the + * value_type is std::pair. + * + * Maps support bidirectional iterators. + * + * The private tree data is declared exactly the same way for map and + * multimap; the distinction is made entirely in how the tree functions are + * called (*_unique versus *_equal, same as the standard). + */ + template , + typename _Alloc = std::allocator > > + class map + { + public: + typedef _Key key_type; + typedef _Tp mapped_type; + typedef std::pair value_type; + typedef _Compare key_compare; + typedef _Alloc allocator_type; + + private: +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires4(_Compare, bool, _Key, _Key, + _BinaryFunctionConcept) + __glibcxx_class_requires2(value_type, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L +#if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::map must have the same value_type as its allocator"); +#endif +#endif + + public: + class value_compare + : public std::binary_function + { + friend class map<_Key, _Tp, _Compare, _Alloc>; + protected: + _Compare comp; + + value_compare(_Compare __c) + : comp(__c) { } + + public: + bool operator()(const value_type& __x, const value_type& __y) const + { return comp(__x.first, __y.first); } + }; + + private: + /// This turns a red-black tree into a [multi]map. + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind::other _Pair_alloc_type; + + typedef _Rb_tree, + key_compare, _Pair_alloc_type> _Rep_type; + + /// The actual tree structure. + _Rep_type _M_t; + + typedef __gnu_cxx::__alloc_traits<_Pair_alloc_type> _Alloc_traits; + + public: + // many of these are specified differently in ISO, but the following are + // "functionally equivalent" + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + typedef typename _Rep_type::iterator iterator; + typedef typename _Rep_type::const_iterator const_iterator; + typedef typename _Rep_type::size_type size_type; + typedef typename _Rep_type::difference_type difference_type; + typedef typename _Rep_type::reverse_iterator reverse_iterator; + typedef typename _Rep_type::const_reverse_iterator const_reverse_iterator; + +#if __cplusplus > 201402L + using node_type = typename _Rep_type::node_type; + using insert_return_type = typename _Rep_type::insert_return_type; +#endif + + // [23.3.1.1] construct/copy/destroy + // (get_allocator() is also listed in this section) + + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + map() : _M_t() { } +#else + map() = default; +#endif + + /** + * @brief Creates a %map with no elements. + * @param __comp A comparison object. + * @param __a An allocator object. + */ + explicit + map(const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Pair_alloc_type(__a)) { } + + /** + * @brief %Map copy constructor. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + map(const map& __x) + : _M_t(__x._M_t) { } +#else + map(const map&) = default; + + /** + * @brief %Map move constructor. + * + * The newly-created %map contains the exact contents of the moved + * instance. The moved instance is a valid, but unspecified, %map. + */ + map(map&&) = default; + + /** + * @brief Builds a %map from an initializer_list. + * @param __l An initializer_list. + * @param __comp A comparison object. + * @param __a An allocator object. + * + * Create a %map consisting of copies of the elements in the + * initializer_list @a __l. + * This is linear in N if the range is already sorted, and NlogN + * otherwise (where N is @a __l.size()). + */ + map(initializer_list __l, + const _Compare& __comp = _Compare(), + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Pair_alloc_type(__a)) + { _M_t._M_insert_range_unique(__l.begin(), __l.end()); } + + /// Allocator-extended default constructor. + explicit + map(const allocator_type& __a) + : _M_t(_Pair_alloc_type(__a)) { } + + /// Allocator-extended copy constructor. + map(const map& __m, const allocator_type& __a) + : _M_t(__m._M_t, _Pair_alloc_type(__a)) { } + + /// Allocator-extended move constructor. + map(map&& __m, const allocator_type& __a) + noexcept(is_nothrow_copy_constructible<_Compare>::value + && _Alloc_traits::_S_always_equal()) + : _M_t(std::move(__m._M_t), _Pair_alloc_type(__a)) { } + + /// Allocator-extended initialier-list constructor. + map(initializer_list __l, const allocator_type& __a) + : _M_t(_Pair_alloc_type(__a)) + { _M_t._M_insert_range_unique(__l.begin(), __l.end()); } + + /// Allocator-extended range constructor. + template + map(_InputIterator __first, _InputIterator __last, + const allocator_type& __a) + : _M_t(_Pair_alloc_type(__a)) + { _M_t._M_insert_range_unique(__first, __last); } +#endif + + /** + * @brief Builds a %map from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * + * Create a %map consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is + * already sorted, and NlogN otherwise (where N is + * distance(__first,__last)). + */ + template + map(_InputIterator __first, _InputIterator __last) + : _M_t() + { _M_t._M_insert_range_unique(__first, __last); } + + /** + * @brief Builds a %map from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %map consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is + * already sorted, and NlogN otherwise (where N is + * distance(__first,__last)). + */ + template + map(_InputIterator __first, _InputIterator __last, + const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Pair_alloc_type(__a)) + { _M_t._M_insert_range_unique(__first, __last); } + +#if __cplusplus >= 201103L + /** + * The dtor only erases the elements, and note that if the elements + * themselves are pointers, the pointed-to memory is not touched in any + * way. Managing the pointer is the user's responsibility. + */ + ~map() = default; +#endif + + /** + * @brief %Map assignment operator. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + map& + operator=(const map& __x) + { + _M_t = __x._M_t; + return *this; + } +#else + map& + operator=(const map&) = default; + + /// Move assignment operator. + map& + operator=(map&&) = default; + + /** + * @brief %Map list assignment operator. + * @param __l An initializer_list. + * + * This function fills a %map with copies of the elements in the + * initializer list @a __l. + * + * Note that the assignment completely changes the %map and + * that the resulting %map's size is the same as the number + * of elements assigned. + */ + map& + operator=(initializer_list __l) + { + _M_t._M_assign_unique(__l.begin(), __l.end()); + return *this; + } +#endif + + /// Get a copy of the memory allocation object. + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_t.get_allocator()); } + + // iterators + /** + * Returns a read/write iterator that points to the first pair in the + * %map. + * Iteration is done in ascending order according to the keys. + */ + iterator + begin() _GLIBCXX_NOEXCEPT + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points to the first pair + * in the %map. Iteration is done in ascending order according to the + * keys. + */ + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return _M_t.begin(); } + + /** + * Returns a read/write iterator that points one past the last + * pair in the %map. Iteration is done in ascending order + * according to the keys. + */ + iterator + end() _GLIBCXX_NOEXCEPT + { return _M_t.end(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * pair in the %map. Iteration is done in ascending order according to + * the keys. + */ + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return _M_t.end(); } + + /** + * Returns a read/write reverse iterator that points to the last pair in + * the %map. Iteration is done in descending order according to the + * keys. + */ + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last pair in the %map. Iteration is done in descending order + * according to the keys. + */ + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return _M_t.rbegin(); } + + /** + * Returns a read/write reverse iterator that points to one before the + * first pair in the %map. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return _M_t.rend(); } + + /** + * Returns a read-only (constant) reverse iterator that points to one + * before the first pair in the %map. Iteration is done in descending + * order according to the keys. + */ + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return _M_t.rend(); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the first pair + * in the %map. Iteration is done in ascending order according to the + * keys. + */ + const_iterator + cbegin() const noexcept + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * pair in the %map. Iteration is done in ascending order according to + * the keys. + */ + const_iterator + cend() const noexcept + { return _M_t.end(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last pair in the %map. Iteration is done in descending order + * according to the keys. + */ + const_reverse_iterator + crbegin() const noexcept + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to one + * before the first pair in the %map. Iteration is done in descending + * order according to the keys. + */ + const_reverse_iterator + crend() const noexcept + { return _M_t.rend(); } +#endif + + // capacity + /** Returns true if the %map is empty. (Thus begin() would equal + * end().) + */ + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return _M_t.empty(); } + + /** Returns the size of the %map. */ + size_type + size() const _GLIBCXX_NOEXCEPT + { return _M_t.size(); } + + /** Returns the maximum size of the %map. */ + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _M_t.max_size(); } + + // [23.3.1.2] element access + /** + * @brief Subscript ( @c [] ) access to %map data. + * @param __k The key for which data should be retrieved. + * @return A reference to the data of the (key,data) %pair. + * + * Allows for easy lookup with the subscript ( @c [] ) + * operator. Returns data associated with the key specified in + * subscript. If the key does not exist, a pair with that key + * is created using default values, which is then returned. + * + * Lookup requires logarithmic time. + */ + mapped_type& + operator[](const key_type& __k) + { + // concept requirements + __glibcxx_function_requires(_DefaultConstructibleConcept) + + iterator __i = lower_bound(__k); + // __i->first is greater than or equivalent to __k. + if (__i == end() || key_comp()(__k, (*__i).first)) +#if __cplusplus >= 201103L + __i = _M_t._M_emplace_hint_unique(__i, std::piecewise_construct, + std::tuple(__k), + std::tuple<>()); +#else + __i = insert(__i, value_type(__k, mapped_type())); +#endif + return (*__i).second; + } + +#if __cplusplus >= 201103L + mapped_type& + operator[](key_type&& __k) + { + // concept requirements + __glibcxx_function_requires(_DefaultConstructibleConcept) + + iterator __i = lower_bound(__k); + // __i->first is greater than or equivalent to __k. + if (__i == end() || key_comp()(__k, (*__i).first)) + __i = _M_t._M_emplace_hint_unique(__i, std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::tuple<>()); + return (*__i).second; + } +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 464. Suggestion for new member functions in standard containers. + /** + * @brief Access to %map data. + * @param __k The key for which data should be retrieved. + * @return A reference to the data whose key is equivalent to @a __k, if + * such a data is present in the %map. + * @throw std::out_of_range If no such data is present. + */ + mapped_type& + at(const key_type& __k) + { + iterator __i = lower_bound(__k); + if (__i == end() || key_comp()(__k, (*__i).first)) + __throw_out_of_range(__N("map::at")); + return (*__i).second; + } + + const mapped_type& + at(const key_type& __k) const + { + const_iterator __i = lower_bound(__k); + if (__i == end() || key_comp()(__k, (*__i).first)) + __throw_out_of_range(__N("map::at")); + return (*__i).second; + } + + // modifiers +#if __cplusplus >= 201103L + /** + * @brief Attempts to build and insert a std::pair into the %map. + * + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted pair, and the second is a bool that + * is true if the pair was actually inserted. + * + * This function attempts to build and insert a (key, value) %pair into + * the %map. + * A %map relies on unique keys and thus a %pair is only inserted if its + * first element (the key) is not already present in the %map. + * + * Insertion requires logarithmic time. + */ + template + std::pair + emplace(_Args&&... __args) + { return _M_t._M_emplace_unique(std::forward<_Args>(__args)...); } + + /** + * @brief Attempts to build and insert a std::pair into the %map. + * + * @param __pos An iterator that serves as a hint as to where the pair + * should be inserted. + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * @return An iterator that points to the element with key of the + * std::pair built from @a __args (may or may not be that + * std::pair). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument emplace() + * does. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { + return _M_t._M_emplace_hint_unique(__pos, + std::forward<_Args>(__args)...); + } +#endif + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_t.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __x) + { return _M_t.extract(__x); } + + /// Re-insert an extracted node. + insert_return_type + insert(node_type&& __nh) + { return _M_t._M_reinsert_node_unique(std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator __hint, node_type&& __nh) + { return _M_t._M_reinsert_node_hint_unique(__hint, std::move(__nh)); } + + template + friend class std::_Rb_tree_merge_helper; + + template + void + merge(map<_Key, _Tp, _Cmp2, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_unique(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(map<_Key, _Tp, _Cmp2, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(multimap<_Key, _Tp, _Cmp2, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_unique(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(multimap<_Key, _Tp, _Cmp2, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + +#if __cplusplus > 201402L +#define __cpp_lib_map_try_emplace 201411 + /** + * @brief Attempts to build and insert a std::pair into the %map. + * + * @param __k Key to use for finding a possibly existing pair in + * the map. + * @param __args Arguments used to generate the .second for a new pair + * instance. + * + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted pair, and the second is a bool that + * is true if the pair was actually inserted. + * + * This function attempts to build and insert a (key, value) %pair into + * the %map. + * A %map relies on unique keys and thus a %pair is only inserted if its + * first element (the key) is not already present in the %map. + * If a %pair is not inserted, this function has no effect. + * + * Insertion requires logarithmic time. + */ + template + pair + try_emplace(const key_type& __k, _Args&&... __args) + { + iterator __i = lower_bound(__k); + if (__i == end() || key_comp()(__k, (*__i).first)) + { + __i = emplace_hint(__i, std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Args>(__args)...)); + return {__i, true}; + } + return {__i, false}; + } + + // move-capable overload + template + pair + try_emplace(key_type&& __k, _Args&&... __args) + { + iterator __i = lower_bound(__k); + if (__i == end() || key_comp()(__k, (*__i).first)) + { + __i = emplace_hint(__i, std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Args>(__args)...)); + return {__i, true}; + } + return {__i, false}; + } + + /** + * @brief Attempts to build and insert a std::pair into the %map. + * + * @param __hint An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __k Key to use for finding a possibly existing pair in + * the map. + * @param __args Arguments used to generate the .second for a new pair + * instance. + * @return An iterator that points to the element with key of the + * std::pair built from @a __args (may or may not be that + * std::pair). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument + * try_emplace() does. However, if insertion did not take place, + * this function has no effect. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + template + iterator + try_emplace(const_iterator __hint, const key_type& __k, + _Args&&... __args) + { + iterator __i; + auto __true_hint = _M_t._M_get_insert_hint_unique_pos(__hint, __k); + if (__true_hint.second) + __i = emplace_hint(iterator(__true_hint.second), + std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Args>(__args)...)); + else + __i = iterator(__true_hint.first); + return __i; + } + + // move-capable overload + template + iterator + try_emplace(const_iterator __hint, key_type&& __k, _Args&&... __args) + { + iterator __i; + auto __true_hint = _M_t._M_get_insert_hint_unique_pos(__hint, __k); + if (__true_hint.second) + __i = emplace_hint(iterator(__true_hint.second), + std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Args>(__args)...)); + else + __i = iterator(__true_hint.first); + return __i; + } +#endif + + /** + * @brief Attempts to insert a std::pair into the %map. + * @param __x Pair to be inserted (see std::make_pair for easy + * creation of pairs). + * + * @return A pair, of which the first element is an iterator that + * points to the possibly inserted pair, and the second is + * a bool that is true if the pair was actually inserted. + * + * This function attempts to insert a (key, value) %pair into the %map. + * A %map relies on unique keys and thus a %pair is only inserted if its + * first element (the key) is not already present in the %map. + * + * Insertion requires logarithmic time. + * @{ + */ + std::pair + insert(const value_type& __x) + { return _M_t._M_insert_unique(__x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + std::pair + insert(value_type&& __x) + { return _M_t._M_insert_unique(std::move(__x)); } + + template + __enable_if_t::value, + pair> + insert(_Pair&& __x) + { return _M_t._M_emplace_unique(std::forward<_Pair>(__x)); } +#endif + // @} + +#if __cplusplus >= 201103L + /** + * @brief Attempts to insert a list of std::pairs into the %map. + * @param __list A std::initializer_list of pairs to be + * inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(std::initializer_list __list) + { insert(__list.begin(), __list.end()); } +#endif + + /** + * @brief Attempts to insert a std::pair into the %map. + * @param __position An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __x Pair to be inserted (see std::make_pair for easy creation + * of pairs). + * @return An iterator that points to the element with key of + * @a __x (may or may not be the %pair passed in). + * + + * This function is not concerned about whether the insertion + * took place, and thus does not return a boolean like the + * single-argument insert() does. Note that the first + * parameter is only a hint and can potentially improve the + * performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires logarithmic time (if the hint is not taken). + * @{ + */ + iterator +#if __cplusplus >= 201103L + insert(const_iterator __position, const value_type& __x) +#else + insert(iterator __position, const value_type& __x) +#endif + { return _M_t._M_insert_unique_(__position, __x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + iterator + insert(const_iterator __position, value_type&& __x) + { return _M_t._M_insert_unique_(__position, std::move(__x)); } + + template + __enable_if_t::value, iterator> + insert(const_iterator __position, _Pair&& __x) + { + return _M_t._M_emplace_hint_unique(__position, + std::forward<_Pair>(__x)); + } +#endif + // @} + + /** + * @brief Template function that attempts to insert a range of elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_t._M_insert_range_unique(__first, __last); } + +#if __cplusplus > 201402L + /** + * @brief Attempts to insert or assign a std::pair into the %map. + * @param __k Key to use for finding a possibly existing pair in + * the map. + * @param __obj Argument used to generate the .second for a pair + * instance. + * + * @return A pair, of which the first element is an iterator that + * points to the possibly inserted pair, and the second is + * a bool that is true if the pair was actually inserted. + * + * This function attempts to insert a (key, value) %pair into the %map. + * A %map relies on unique keys and thus a %pair is only inserted if its + * first element (the key) is not already present in the %map. + * If the %pair was already in the %map, the .second of the %pair + * is assigned from __obj. + * + * Insertion requires logarithmic time. + */ + template + pair + insert_or_assign(const key_type& __k, _Obj&& __obj) + { + iterator __i = lower_bound(__k); + if (__i == end() || key_comp()(__k, (*__i).first)) + { + __i = emplace_hint(__i, std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Obj>(__obj))); + return {__i, true}; + } + (*__i).second = std::forward<_Obj>(__obj); + return {__i, false}; + } + + // move-capable overload + template + pair + insert_or_assign(key_type&& __k, _Obj&& __obj) + { + iterator __i = lower_bound(__k); + if (__i == end() || key_comp()(__k, (*__i).first)) + { + __i = emplace_hint(__i, std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Obj>(__obj))); + return {__i, true}; + } + (*__i).second = std::forward<_Obj>(__obj); + return {__i, false}; + } + + /** + * @brief Attempts to insert or assign a std::pair into the %map. + * @param __hint An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __k Key to use for finding a possibly existing pair in + * the map. + * @param __obj Argument used to generate the .second for a pair + * instance. + * + * @return An iterator that points to the element with key of + * @a __x (may or may not be the %pair passed in). + * + * This function attempts to insert a (key, value) %pair into the %map. + * A %map relies on unique keys and thus a %pair is only inserted if its + * first element (the key) is not already present in the %map. + * If the %pair was already in the %map, the .second of the %pair + * is assigned from __obj. + * + * Insertion requires logarithmic time. + */ + template + iterator + insert_or_assign(const_iterator __hint, + const key_type& __k, _Obj&& __obj) + { + iterator __i; + auto __true_hint = _M_t._M_get_insert_hint_unique_pos(__hint, __k); + if (__true_hint.second) + { + return emplace_hint(iterator(__true_hint.second), + std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Obj>(__obj))); + } + __i = iterator(__true_hint.first); + (*__i).second = std::forward<_Obj>(__obj); + return __i; + } + + // move-capable overload + template + iterator + insert_or_assign(const_iterator __hint, key_type&& __k, _Obj&& __obj) + { + iterator __i; + auto __true_hint = _M_t._M_get_insert_hint_unique_pos(__hint, __k); + if (__true_hint.second) + { + return emplace_hint(iterator(__true_hint.second), + std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Obj>(__obj))); + } + __i = iterator(__true_hint.first); + (*__i).second = std::forward<_Obj>(__obj); + return __i; + } +#endif + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases an element from a %map. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given + * iterator, from a %map. Note that this function only erases + * the element, and that if the element is itself a pointer, + * the pointed-to memory is not touched in any way. Managing + * the pointer is the user's responsibility. + * + * @{ + */ + iterator + erase(const_iterator __position) + { return _M_t.erase(__position); } + + // LWG 2059 + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(iterator __position) + { return _M_t.erase(__position); } + // @} +#else + /** + * @brief Erases an element from a %map. + * @param __position An iterator pointing to the element to be erased. + * + * This function erases an element, pointed to by the given + * iterator, from a %map. Note that this function only erases + * the element, and that if the element is itself a pointer, + * the pointed-to memory is not touched in any way. Managing + * the pointer is the user's responsibility. + */ + void + erase(iterator __position) + { _M_t.erase(__position); } +#endif + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all the elements located by the given key from + * a %map. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_t.erase(__x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases a [first,last) range of elements from a %map. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a __last. + * + * This function erases a sequence of elements from a %map. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_t.erase(__first, __last); } +#else + /** + * @brief Erases a [__first,__last) range of elements from a %map. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * + * This function erases a sequence of elements from a %map. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + void + erase(iterator __first, iterator __last) + { _M_t.erase(__first, __last); } +#endif + + /** + * @brief Swaps data with another %map. + * @param __x A %map of the same element and allocator types. + * + * This exchanges the elements between two maps in constant + * time. (It is only swapping a pointer, an integer, and an + * instance of the @c Compare type (which itself is often + * stateless and empty), so it should be quite fast.) Note + * that the global std::swap() function is specialized such + * that std::swap(m1,m2) will feed to this function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(map& __x) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Compare>::value) + { _M_t.swap(__x._M_t); } + + /** + * Erases all elements in a %map. Note that this function only + * erases the elements, and that if the elements themselves are + * pointers, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { _M_t.clear(); } + + // observers + /** + * Returns the key comparison object out of which the %map was + * constructed. + */ + key_compare + key_comp() const + { return _M_t.key_comp(); } + + /** + * Returns a value comparison object, built from the key comparison + * object out of which the %map was constructed. + */ + value_compare + value_comp() const + { return value_compare(_M_t.key_comp()); } + + // [23.3.1.3] map operations + + //@{ + /** + * @brief Tries to locate an element in a %map. + * @param __x Key of (key, value) %pair to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after %pair. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + + iterator + find(const key_type& __x) + { return _M_t.find(__x); } + +#if __cplusplus > 201103L + template + auto + find(const _Kt& __x) -> decltype(_M_t._M_find_tr(__x)) + { return _M_t._M_find_tr(__x); } +#endif + //@} + + //@{ + /** + * @brief Tries to locate an element in a %map. + * @param __x Key of (key, value) %pair to be located. + * @return Read-only (constant) iterator pointing to sought-after + * element, or end() if not found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns a constant + * iterator pointing to the sought after %pair. If unsuccessful it + * returns the past-the-end ( @c end() ) iterator. + */ + + const_iterator + find(const key_type& __x) const + { return _M_t.find(__x); } + +#if __cplusplus > 201103L + template + auto + find(const _Kt& __x) const -> decltype(_M_t._M_find_tr(__x)) + { return _M_t._M_find_tr(__x); } +#endif + //@} + + //@{ + /** + * @brief Finds the number of elements with given key. + * @param __x Key of (key, value) pairs to be located. + * @return Number of elements with specified key. + * + * This function only makes sense for multimaps; for map the result will + * either be 0 (not present) or 1 (present). + */ + size_type + count(const key_type& __x) const + { return _M_t.find(__x) == _M_t.end() ? 0 : 1; } + +#if __cplusplus > 201103L + template + auto + count(const _Kt& __x) const -> decltype(_M_t._M_count_tr(__x)) + { return _M_t._M_count_tr(__x); } +#endif + //@} + +#if __cplusplus > 201703L + //@{ + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of (key, value) pairs to be located. + * @return True if there is an element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_t.find(__x) != _M_t.end(); } + + template + auto + contains(const _Kt& __x) const + -> decltype(_M_t._M_find_tr(__x), void(), true) + { return _M_t._M_find_tr(__x) != _M_t.end(); } + //@} +#endif + + //@{ + /** + * @brief Finds the beginning of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Iterator pointing to first element equal to or greater + * than key, or end(). + * + * This function returns the first element of a subsequence of elements + * that matches the given key. If unsuccessful it returns an iterator + * pointing to the first element that has a greater value than given key + * or end() if no such element exists. + */ + iterator + lower_bound(const key_type& __x) + { return _M_t.lower_bound(__x); } + +#if __cplusplus > 201103L + template + auto + lower_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_lower_bound_tr(__x))) + { return iterator(_M_t._M_lower_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the beginning of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Read-only (constant) iterator pointing to first element + * equal to or greater than key, or end(). + * + * This function returns the first element of a subsequence of elements + * that matches the given key. If unsuccessful it returns an iterator + * pointing to the first element that has a greater value than given key + * or end() if no such element exists. + */ + const_iterator + lower_bound(const key_type& __x) const + { return _M_t.lower_bound(__x); } + +#if __cplusplus > 201103L + template + auto + lower_bound(const _Kt& __x) const + -> decltype(const_iterator(_M_t._M_lower_bound_tr(__x))) + { return const_iterator(_M_t._M_lower_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the end of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Iterator pointing to the first element + * greater than key, or end(). + */ + iterator + upper_bound(const key_type& __x) + { return _M_t.upper_bound(__x); } + +#if __cplusplus > 201103L + template + auto + upper_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_upper_bound_tr(__x))) + { return iterator(_M_t._M_upper_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the end of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Read-only (constant) iterator pointing to first iterator + * greater than key, or end(). + */ + const_iterator + upper_bound(const key_type& __x) const + { return _M_t.upper_bound(__x); } + +#if __cplusplus > 201103L + template + auto + upper_bound(const _Kt& __x) const + -> decltype(const_iterator(_M_t._M_upper_bound_tr(__x))) + { return const_iterator(_M_t._M_upper_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key of (key, value) pairs to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + * + * This function is equivalent to + * @code + * std::make_pair(c.lower_bound(val), + * c.upper_bound(val)) + * @endcode + * (but is faster than making the calls separately). + * + * This function probably only makes sense for multimaps. + */ + std::pair + equal_range(const key_type& __x) + { return _M_t.equal_range(__x); } + +#if __cplusplus > 201103L + template + auto + equal_range(const _Kt& __x) + -> decltype(pair(_M_t._M_equal_range_tr(__x))) + { return pair(_M_t._M_equal_range_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key of (key, value) pairs to be located. + * @return Pair of read-only (constant) iterators that possibly points + * to the subsequence matching given key. + * + * This function is equivalent to + * @code + * std::make_pair(c.lower_bound(val), + * c.upper_bound(val)) + * @endcode + * (but is faster than making the calls separately). + * + * This function probably only makes sense for multimaps. + */ + std::pair + equal_range(const key_type& __x) const + { return _M_t.equal_range(__x); } + +#if __cplusplus > 201103L + template + auto + equal_range(const _Kt& __x) const + -> decltype(pair( + _M_t._M_equal_range_tr(__x))) + { + return pair( + _M_t._M_equal_range_tr(__x)); + } +#endif + //@} + + template + friend bool + operator==(const map<_K1, _T1, _C1, _A1>&, + const map<_K1, _T1, _C1, _A1>&); + +#if __cpp_lib_three_way_comparison + template + friend __detail::__synth3way_t> + operator<=>(const map<_K1, _T1, _C1, _A1>&, + const map<_K1, _T1, _C1, _A1>&); +#else + template + friend bool + operator<(const map<_K1, _T1, _C1, _A1>&, + const map<_K1, _T1, _C1, _A1>&); +#endif + }; + + +#if __cpp_deduction_guides >= 201606 + + template>, + typename _Allocator = allocator<__iter_to_alloc_t<_InputIterator>>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + map(_InputIterator, _InputIterator, + _Compare = _Compare(), _Allocator = _Allocator()) + -> map<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>, + _Compare, _Allocator>; + + template, + typename _Allocator = allocator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + map(initializer_list>, + _Compare = _Compare(), _Allocator = _Allocator()) + -> map<_Key, _Tp, _Compare, _Allocator>; + + template , + typename = _RequireAllocator<_Allocator>> + map(_InputIterator, _InputIterator, _Allocator) + -> map<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>, + less<__iter_key_t<_InputIterator>>, _Allocator>; + + template> + map(initializer_list>, _Allocator) + -> map<_Key, _Tp, less<_Key>, _Allocator>; + +#endif // deduction guides + + /** + * @brief Map equality comparison. + * @param __x A %map. + * @param __y A %map of the same type as @a x. + * @return True iff the size and elements of the maps are equal. + * + * This is an equivalence relation. It is linear in the size of the + * maps. Maps are considered equivalent if their sizes are equal, + * and if corresponding elements compare equal. + */ + template + inline bool + operator==(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return __x._M_t == __y._M_t; } + +#if __cpp_lib_three_way_comparison + /** + * @brief Map ordering relation. + * @param __x A `map`. + * @param __y A `map` of the same type as `x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * This is a total ordering relation. It is linear in the size of the + * maps. The elements must be comparable with @c <. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t> + operator<=>(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return __x._M_t <=> __y._M_t; } +#else + /** + * @brief Map ordering relation. + * @param __x A %map. + * @param __y A %map of the same type as @a x. + * @return True iff @a x is lexicographically less than @a y. + * + * This is a total ordering relation. It is linear in the size of the + * maps. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return __x._M_t < __y._M_t; } + + /// Based on operator== + template + inline bool + operator!=(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const map<_Key, _Tp, _Compare, _Alloc>& __x, + const map<_Key, _Tp, _Compare, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::map::swap(). + template + inline void + swap(map<_Key, _Tp, _Compare, _Alloc>& __x, + map<_Key, _Tp, _Compare, _Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus > 201402L + // Allow std::map access to internals of compatible maps. + template + struct + _Rb_tree_merge_helper<_GLIBCXX_STD_C::map<_Key, _Val, _Cmp1, _Alloc>, + _Cmp2> + { + private: + friend class _GLIBCXX_STD_C::map<_Key, _Val, _Cmp1, _Alloc>; + + static auto& + _S_get_tree(_GLIBCXX_STD_C::map<_Key, _Val, _Cmp2, _Alloc>& __map) + { return __map._M_t; } + + static auto& + _S_get_tree(_GLIBCXX_STD_C::multimap<_Key, _Val, _Cmp2, _Alloc>& __map) + { return __map._M_t; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_MAP_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_multimap.h b/resources/sources/avr-libstdcpp/include/bits/stl_multimap.h new file mode 100644 index 000000000..65f4d0117 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_multimap.h @@ -0,0 +1,1233 @@ +// Multimap implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_multimap.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{map} + */ + +#ifndef _STL_MULTIMAP_H +#define _STL_MULTIMAP_H 1 + +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + class map; + + /** + * @brief A standard container made up of (key,value) pairs, which can be + * retrieved based on a key, in logarithmic time. + * + * @ingroup associative_containers + * + * @tparam _Key Type of key objects. + * @tparam _Tp Type of mapped objects. + * @tparam _Compare Comparison function object type, defaults to less<_Key>. + * @tparam _Alloc Allocator type, defaults to + * allocator. + * + * Meets the requirements of a container, a + * reversible container, and an + * associative container (using equivalent + * keys). For a @c multimap the key_type is Key, the mapped_type + * is T, and the value_type is std::pair. + * + * Multimaps support bidirectional iterators. + * + * The private tree data is declared exactly the same way for map and + * multimap; the distinction is made entirely in how the tree functions are + * called (*_unique versus *_equal, same as the standard). + */ + template , + typename _Alloc = std::allocator > > + class multimap + { + public: + typedef _Key key_type; + typedef _Tp mapped_type; + typedef std::pair value_type; + typedef _Compare key_compare; + typedef _Alloc allocator_type; + + private: +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires4(_Compare, bool, _Key, _Key, + _BinaryFunctionConcept) + __glibcxx_class_requires2(value_type, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L +#if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::multimap must have the same value_type as its allocator"); +#endif +#endif + + public: + class value_compare + : public std::binary_function + { + friend class multimap<_Key, _Tp, _Compare, _Alloc>; + protected: + _Compare comp; + + value_compare(_Compare __c) + : comp(__c) { } + + public: + bool operator()(const value_type& __x, const value_type& __y) const + { return comp(__x.first, __y.first); } + }; + + private: + /// This turns a red-black tree into a [multi]map. + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind::other _Pair_alloc_type; + + typedef _Rb_tree, + key_compare, _Pair_alloc_type> _Rep_type; + /// The actual tree structure. + _Rep_type _M_t; + + typedef __gnu_cxx::__alloc_traits<_Pair_alloc_type> _Alloc_traits; + + public: + // many of these are specified differently in ISO, but the following are + // "functionally equivalent" + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + typedef typename _Rep_type::iterator iterator; + typedef typename _Rep_type::const_iterator const_iterator; + typedef typename _Rep_type::size_type size_type; + typedef typename _Rep_type::difference_type difference_type; + typedef typename _Rep_type::reverse_iterator reverse_iterator; + typedef typename _Rep_type::const_reverse_iterator const_reverse_iterator; + +#if __cplusplus > 201402L + using node_type = typename _Rep_type::node_type; +#endif + + // [23.3.2] construct/copy/destroy + // (get_allocator() is also listed in this section) + + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + multimap() : _M_t() { } +#else + multimap() = default; +#endif + + /** + * @brief Creates a %multimap with no elements. + * @param __comp A comparison object. + * @param __a An allocator object. + */ + explicit + multimap(const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Pair_alloc_type(__a)) { } + + /** + * @brief %Multimap copy constructor. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + multimap(const multimap& __x) + : _M_t(__x._M_t) { } +#else + multimap(const multimap&) = default; + + /** + * @brief %Multimap move constructor. + * + * The newly-created %multimap contains the exact contents of the + * moved instance. The moved instance is a valid, but unspecified + * %multimap. + */ + multimap(multimap&&) = default; + + /** + * @brief Builds a %multimap from an initializer_list. + * @param __l An initializer_list. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %multimap consisting of copies of the elements from + * the initializer_list. This is linear in N if the list is already + * sorted, and NlogN otherwise (where N is @a __l.size()). + */ + multimap(initializer_list __l, + const _Compare& __comp = _Compare(), + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Pair_alloc_type(__a)) + { _M_t._M_insert_range_equal(__l.begin(), __l.end()); } + + /// Allocator-extended default constructor. + explicit + multimap(const allocator_type& __a) + : _M_t(_Pair_alloc_type(__a)) { } + + /// Allocator-extended copy constructor. + multimap(const multimap& __m, const allocator_type& __a) + : _M_t(__m._M_t, _Pair_alloc_type(__a)) { } + + /// Allocator-extended move constructor. + multimap(multimap&& __m, const allocator_type& __a) + noexcept(is_nothrow_copy_constructible<_Compare>::value + && _Alloc_traits::_S_always_equal()) + : _M_t(std::move(__m._M_t), _Pair_alloc_type(__a)) { } + + /// Allocator-extended initialier-list constructor. + multimap(initializer_list __l, const allocator_type& __a) + : _M_t(_Pair_alloc_type(__a)) + { _M_t._M_insert_range_equal(__l.begin(), __l.end()); } + + /// Allocator-extended range constructor. + template + multimap(_InputIterator __first, _InputIterator __last, + const allocator_type& __a) + : _M_t(_Pair_alloc_type(__a)) + { _M_t._M_insert_range_equal(__first, __last); } +#endif + + /** + * @brief Builds a %multimap from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * + * Create a %multimap consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is already sorted, + * and NlogN otherwise (where N is distance(__first,__last)). + */ + template + multimap(_InputIterator __first, _InputIterator __last) + : _M_t() + { _M_t._M_insert_range_equal(__first, __last); } + + /** + * @brief Builds a %multimap from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %multimap consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is already sorted, + * and NlogN otherwise (where N is distance(__first,__last)). + */ + template + multimap(_InputIterator __first, _InputIterator __last, + const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Pair_alloc_type(__a)) + { _M_t._M_insert_range_equal(__first, __last); } + +#if __cplusplus >= 201103L + /** + * The dtor only erases the elements, and note that if the elements + * themselves are pointers, the pointed-to memory is not touched in any + * way. Managing the pointer is the user's responsibility. + */ + ~multimap() = default; +#endif + + /** + * @brief %Multimap assignment operator. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + multimap& + operator=(const multimap& __x) + { + _M_t = __x._M_t; + return *this; + } +#else + multimap& + operator=(const multimap&) = default; + + /// Move assignment operator. + multimap& + operator=(multimap&&) = default; + + /** + * @brief %Multimap list assignment operator. + * @param __l An initializer_list. + * + * This function fills a %multimap with copies of the elements + * in the initializer list @a __l. + * + * Note that the assignment completely changes the %multimap and + * that the resulting %multimap's size is the same as the number + * of elements assigned. + */ + multimap& + operator=(initializer_list __l) + { + _M_t._M_assign_equal(__l.begin(), __l.end()); + return *this; + } +#endif + + /// Get a copy of the memory allocation object. + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_t.get_allocator()); } + + // iterators + /** + * Returns a read/write iterator that points to the first pair in the + * %multimap. Iteration is done in ascending order according to the + * keys. + */ + iterator + begin() _GLIBCXX_NOEXCEPT + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points to the first pair + * in the %multimap. Iteration is done in ascending order according to + * the keys. + */ + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return _M_t.begin(); } + + /** + * Returns a read/write iterator that points one past the last pair in + * the %multimap. Iteration is done in ascending order according to the + * keys. + */ + iterator + end() _GLIBCXX_NOEXCEPT + { return _M_t.end(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * pair in the %multimap. Iteration is done in ascending order according + * to the keys. + */ + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return _M_t.end(); } + + /** + * Returns a read/write reverse iterator that points to the last pair in + * the %multimap. Iteration is done in descending order according to the + * keys. + */ + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last pair in the %multimap. Iteration is done in descending order + * according to the keys. + */ + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return _M_t.rbegin(); } + + /** + * Returns a read/write reverse iterator that points to one before the + * first pair in the %multimap. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return _M_t.rend(); } + + /** + * Returns a read-only (constant) reverse iterator that points to one + * before the first pair in the %multimap. Iteration is done in + * descending order according to the keys. + */ + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return _M_t.rend(); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the first pair + * in the %multimap. Iteration is done in ascending order according to + * the keys. + */ + const_iterator + cbegin() const noexcept + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * pair in the %multimap. Iteration is done in ascending order according + * to the keys. + */ + const_iterator + cend() const noexcept + { return _M_t.end(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last pair in the %multimap. Iteration is done in descending order + * according to the keys. + */ + const_reverse_iterator + crbegin() const noexcept + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to one + * before the first pair in the %multimap. Iteration is done in + * descending order according to the keys. + */ + const_reverse_iterator + crend() const noexcept + { return _M_t.rend(); } +#endif + + // capacity + /** Returns true if the %multimap is empty. */ + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return _M_t.empty(); } + + /** Returns the size of the %multimap. */ + size_type + size() const _GLIBCXX_NOEXCEPT + { return _M_t.size(); } + + /** Returns the maximum size of the %multimap. */ + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _M_t.max_size(); } + + // modifiers +#if __cplusplus >= 201103L + /** + * @brief Build and insert a std::pair into the %multimap. + * + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * + * @return An iterator that points to the inserted (key,value) pair. + * + * This function builds and inserts a (key, value) %pair into the + * %multimap. + * Contrary to a std::map the %multimap does not rely on unique keys and + * thus multiple pairs with the same key can be inserted. + * + * Insertion requires logarithmic time. + */ + template + iterator + emplace(_Args&&... __args) + { return _M_t._M_emplace_equal(std::forward<_Args>(__args)...); } + + /** + * @brief Builds and inserts a std::pair into the %multimap. + * + * @param __pos An iterator that serves as a hint as to where the pair + * should be inserted. + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * @return An iterator that points to the inserted (key,value) pair. + * + * This function inserts a (key, value) pair into the %multimap. + * Contrary to a std::map the %multimap does not rely on unique keys and + * thus multiple pairs with the same key can be inserted. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { + return _M_t._M_emplace_hint_equal(__pos, + std::forward<_Args>(__args)...); + } +#endif + + /** + * @brief Inserts a std::pair into the %multimap. + * @param __x Pair to be inserted (see std::make_pair for easy creation + * of pairs). + * @return An iterator that points to the inserted (key,value) pair. + * + * This function inserts a (key, value) pair into the %multimap. + * Contrary to a std::map the %multimap does not rely on unique keys and + * thus multiple pairs with the same key can be inserted. + * + * Insertion requires logarithmic time. + * @{ + */ + iterator + insert(const value_type& __x) + { return _M_t._M_insert_equal(__x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + iterator + insert(value_type&& __x) + { return _M_t._M_insert_equal(std::move(__x)); } + + template + __enable_if_t::value, iterator> + insert(_Pair&& __x) + { return _M_t._M_emplace_equal(std::forward<_Pair>(__x)); } +#endif + // @} + + /** + * @brief Inserts a std::pair into the %multimap. + * @param __position An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __x Pair to be inserted (see std::make_pair for easy creation + * of pairs). + * @return An iterator that points to the inserted (key,value) pair. + * + * This function inserts a (key, value) pair into the %multimap. + * Contrary to a std::map the %multimap does not rely on unique keys and + * thus multiple pairs with the same key can be inserted. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires logarithmic time (if the hint is not taken). + * @{ + */ + iterator +#if __cplusplus >= 201103L + insert(const_iterator __position, const value_type& __x) +#else + insert(iterator __position, const value_type& __x) +#endif + { return _M_t._M_insert_equal_(__position, __x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + iterator + insert(const_iterator __position, value_type&& __x) + { return _M_t._M_insert_equal_(__position, std::move(__x)); } + + template + __enable_if_t::value, iterator> + insert(const_iterator __position, _Pair&& __x) + { + return _M_t._M_emplace_hint_equal(__position, + std::forward<_Pair>(__x)); + } +#endif + // @} + + /** + * @brief A template function that attempts to insert a range + * of elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_t._M_insert_range_equal(__first, __last); } + +#if __cplusplus >= 201103L + /** + * @brief Attempts to insert a list of std::pairs into the %multimap. + * @param __l A std::initializer_list of pairs to be + * inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { this->insert(__l.begin(), __l.end()); } +#endif + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_t.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __x) + { return _M_t.extract(__x); } + + /// Re-insert an extracted node. + iterator + insert(node_type&& __nh) + { return _M_t._M_reinsert_node_equal(std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator __hint, node_type&& __nh) + { return _M_t._M_reinsert_node_hint_equal(__hint, std::move(__nh)); } + + template + friend class std::_Rb_tree_merge_helper; + + template + void + merge(multimap<_Key, _Tp, _Cmp2, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_equal(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(multimap<_Key, _Tp, _Cmp2, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(map<_Key, _Tp, _Cmp2, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_equal(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(map<_Key, _Tp, _Cmp2, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases an element from a %multimap. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from a %multimap. Note that this function only erases the element, + * and that if the element is itself a pointer, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + * + * @{ + */ + iterator + erase(const_iterator __position) + { return _M_t.erase(__position); } + + // LWG 2059. + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(iterator __position) + { return _M_t.erase(__position); } + // @} +#else + /** + * @brief Erases an element from a %multimap. + * @param __position An iterator pointing to the element to be erased. + * + * This function erases an element, pointed to by the given iterator, + * from a %multimap. Note that this function only erases the element, + * and that if the element is itself a pointer, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + */ + void + erase(iterator __position) + { _M_t.erase(__position); } +#endif + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all elements located by the given key from a + * %multimap. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_t.erase(__x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases a [first,last) range of elements from a %multimap. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to be + * erased . + * @return The iterator @a __last. + * + * This function erases a sequence of elements from a %multimap. + * Note that this function only erases the elements, and that if + * the elements themselves are pointers, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_t.erase(__first, __last); } +#else + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases a [first,last) range of elements from a %multimap. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * + * This function erases a sequence of elements from a %multimap. + * Note that this function only erases the elements, and that if + * the elements themselves are pointers, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + void + erase(iterator __first, iterator __last) + { _M_t.erase(__first, __last); } +#endif + + /** + * @brief Swaps data with another %multimap. + * @param __x A %multimap of the same element and allocator types. + * + * This exchanges the elements between two multimaps in constant time. + * (It is only swapping a pointer, an integer, and an instance of + * the @c Compare type (which itself is often stateless and empty), so it + * should be quite fast.) + * Note that the global std::swap() function is specialized such that + * std::swap(m1,m2) will feed to this function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(multimap& __x) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Compare>::value) + { _M_t.swap(__x._M_t); } + + /** + * Erases all elements in a %multimap. Note that this function only + * erases the elements, and that if the elements themselves are pointers, + * the pointed-to memory is not touched in any way. Managing the pointer + * is the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { _M_t.clear(); } + + // observers + /** + * Returns the key comparison object out of which the %multimap + * was constructed. + */ + key_compare + key_comp() const + { return _M_t.key_comp(); } + + /** + * Returns a value comparison object, built from the key comparison + * object out of which the %multimap was constructed. + */ + value_compare + value_comp() const + { return value_compare(_M_t.key_comp()); } + + // multimap operations + + //@{ + /** + * @brief Tries to locate an element in a %multimap. + * @param __x Key of (key, value) pair to be located. + * @return Iterator pointing to sought-after element, + * or end() if not found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after %pair. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_t.find(__x); } + +#if __cplusplus > 201103L + template + auto + find(const _Kt& __x) -> decltype(_M_t._M_find_tr(__x)) + { return _M_t._M_find_tr(__x); } +#endif + //@} + + //@{ + /** + * @brief Tries to locate an element in a %multimap. + * @param __x Key of (key, value) pair to be located. + * @return Read-only (constant) iterator pointing to sought-after + * element, or end() if not found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns a constant + * iterator pointing to the sought after %pair. If unsuccessful it + * returns the past-the-end ( @c end() ) iterator. + */ + const_iterator + find(const key_type& __x) const + { return _M_t.find(__x); } + +#if __cplusplus > 201103L + template + auto + find(const _Kt& __x) const -> decltype(_M_t._M_find_tr(__x)) + { return _M_t._M_find_tr(__x); } +#endif + //@} + + //@{ + /** + * @brief Finds the number of elements with given key. + * @param __x Key of (key, value) pairs to be located. + * @return Number of elements with specified key. + */ + size_type + count(const key_type& __x) const + { return _M_t.count(__x); } + +#if __cplusplus > 201103L + template + auto + count(const _Kt& __x) const -> decltype(_M_t._M_count_tr(__x)) + { return _M_t._M_count_tr(__x); } +#endif + //@} + +#if __cplusplus > 201703L + //@{ + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of (key, value) pairs to be located. + * @return True if there is any element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_t.find(__x) != _M_t.end(); } + + template + auto + contains(const _Kt& __x) const + -> decltype(_M_t._M_find_tr(__x), void(), true) + { return _M_t._M_find_tr(__x) != _M_t.end(); } + //@} +#endif + + //@{ + /** + * @brief Finds the beginning of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Iterator pointing to first element equal to or greater + * than key, or end(). + * + * This function returns the first element of a subsequence of elements + * that matches the given key. If unsuccessful it returns an iterator + * pointing to the first element that has a greater value than given key + * or end() if no such element exists. + */ + iterator + lower_bound(const key_type& __x) + { return _M_t.lower_bound(__x); } + +#if __cplusplus > 201103L + template + auto + lower_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_lower_bound_tr(__x))) + { return iterator(_M_t._M_lower_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the beginning of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Read-only (constant) iterator pointing to first element + * equal to or greater than key, or end(). + * + * This function returns the first element of a subsequence of + * elements that matches the given key. If unsuccessful the + * iterator will point to the next greatest element or, if no + * such greater element exists, to end(). + */ + const_iterator + lower_bound(const key_type& __x) const + { return _M_t.lower_bound(__x); } + +#if __cplusplus > 201103L + template + auto + lower_bound(const _Kt& __x) const + -> decltype(const_iterator(_M_t._M_lower_bound_tr(__x))) + { return const_iterator(_M_t._M_lower_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the end of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Iterator pointing to the first element + * greater than key, or end(). + */ + iterator + upper_bound(const key_type& __x) + { return _M_t.upper_bound(__x); } + +#if __cplusplus > 201103L + template + auto + upper_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_upper_bound_tr(__x))) + { return iterator(_M_t._M_upper_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the end of a subsequence matching given key. + * @param __x Key of (key, value) pair to be located. + * @return Read-only (constant) iterator pointing to first iterator + * greater than key, or end(). + */ + const_iterator + upper_bound(const key_type& __x) const + { return _M_t.upper_bound(__x); } + +#if __cplusplus > 201103L + template + auto + upper_bound(const _Kt& __x) const + -> decltype(const_iterator(_M_t._M_upper_bound_tr(__x))) + { return const_iterator(_M_t._M_upper_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key of (key, value) pairs to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + * + * This function is equivalent to + * @code + * std::make_pair(c.lower_bound(val), + * c.upper_bound(val)) + * @endcode + * (but is faster than making the calls separately). + */ + std::pair + equal_range(const key_type& __x) + { return _M_t.equal_range(__x); } + +#if __cplusplus > 201103L + template + auto + equal_range(const _Kt& __x) + -> decltype(pair(_M_t._M_equal_range_tr(__x))) + { return pair(_M_t._M_equal_range_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key of (key, value) pairs to be located. + * @return Pair of read-only (constant) iterators that possibly points + * to the subsequence matching given key. + * + * This function is equivalent to + * @code + * std::make_pair(c.lower_bound(val), + * c.upper_bound(val)) + * @endcode + * (but is faster than making the calls separately). + */ + std::pair + equal_range(const key_type& __x) const + { return _M_t.equal_range(__x); } + +#if __cplusplus > 201103L + template + auto + equal_range(const _Kt& __x) const + -> decltype(pair( + _M_t._M_equal_range_tr(__x))) + { + return pair( + _M_t._M_equal_range_tr(__x)); + } +#endif + //@} + + template + friend bool + operator==(const multimap<_K1, _T1, _C1, _A1>&, + const multimap<_K1, _T1, _C1, _A1>&); + +#if __cpp_lib_three_way_comparison + template + friend __detail::__synth3way_t> + operator<=>(const multimap<_K1, _T1, _C1, _A1>&, + const multimap<_K1, _T1, _C1, _A1>&); +#else + template + friend bool + operator<(const multimap<_K1, _T1, _C1, _A1>&, + const multimap<_K1, _T1, _C1, _A1>&); +#endif + }; + +#if __cpp_deduction_guides >= 201606 + + template>, + typename _Allocator = allocator<__iter_to_alloc_t<_InputIterator>>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + multimap(_InputIterator, _InputIterator, + _Compare = _Compare(), _Allocator = _Allocator()) + -> multimap<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>, + _Compare, _Allocator>; + + template, + typename _Allocator = allocator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + multimap(initializer_list>, + _Compare = _Compare(), _Allocator = _Allocator()) + -> multimap<_Key, _Tp, _Compare, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + multimap(_InputIterator, _InputIterator, _Allocator) + -> multimap<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>, + less<__iter_key_t<_InputIterator>>, _Allocator>; + + template> + multimap(initializer_list>, _Allocator) + -> multimap<_Key, _Tp, less<_Key>, _Allocator>; + +#endif // deduction guides + + /** + * @brief Multimap equality comparison. + * @param __x A %multimap. + * @param __y A %multimap of the same type as @a __x. + * @return True iff the size and elements of the maps are equal. + * + * This is an equivalence relation. It is linear in the size of the + * multimaps. Multimaps are considered equivalent if their sizes are equal, + * and if corresponding elements compare equal. + */ + template + inline bool + operator==(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return __x._M_t == __y._M_t; } + +#if __cpp_lib_three_way_comparison + /** + * @brief Multimap ordering relation. + * @param __x A `multimap`. + * @param __y A `multimap` of the same type as `x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * This is a total ordering relation. It is linear in the size of the + * maps. The elements must be comparable with @c <. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t> + operator<=>(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return __x._M_t <=> __y._M_t; } +#else + /** + * @brief Multimap ordering relation. + * @param __x A %multimap. + * @param __y A %multimap of the same type as @a __x. + * @return True iff @a x is lexicographically less than @a y. + * + * This is a total ordering relation. It is linear in the size of the + * multimaps. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return __x._M_t < __y._M_t; } + + /// Based on operator== + template + inline bool + operator!=(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, + const multimap<_Key, _Tp, _Compare, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::multimap::swap(). + template + inline void + swap(multimap<_Key, _Tp, _Compare, _Alloc>& __x, + multimap<_Key, _Tp, _Compare, _Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus > 201402L + // Allow std::multimap access to internals of compatible maps. + template + struct + _Rb_tree_merge_helper<_GLIBCXX_STD_C::multimap<_Key, _Val, _Cmp1, _Alloc>, + _Cmp2> + { + private: + friend class _GLIBCXX_STD_C::multimap<_Key, _Val, _Cmp1, _Alloc>; + + static auto& + _S_get_tree(_GLIBCXX_STD_C::map<_Key, _Val, _Cmp2, _Alloc>& __map) + { return __map._M_t; } + + static auto& + _S_get_tree(_GLIBCXX_STD_C::multimap<_Key, _Val, _Cmp2, _Alloc>& __map) + { return __map._M_t; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_MULTIMAP_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_multiset.h b/resources/sources/avr-libstdcpp/include/bits/stl_multiset.h new file mode 100644 index 000000000..bf6ae7de0 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_multiset.h @@ -0,0 +1,1075 @@ +// Multiset implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_multiset.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{set} + */ + +#ifndef _STL_MULTISET_H +#define _STL_MULTISET_H 1 + +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + class set; + + /** + * @brief A standard container made up of elements, which can be retrieved + * in logarithmic time. + * + * @ingroup associative_containers + * + * + * @tparam _Key Type of key objects. + * @tparam _Compare Comparison function object type, defaults to less<_Key>. + * @tparam _Alloc Allocator type, defaults to allocator<_Key>. + * + * Meets the requirements of a container, a + * reversible container, and an + * associative container (using equivalent + * keys). For a @c multiset the key_type and value_type are Key. + * + * Multisets support bidirectional iterators. + * + * The private tree data is declared exactly the same way for set and + * multiset; the distinction is made entirely in how the tree functions are + * called (*_unique versus *_equal, same as the standard). + */ + template , + typename _Alloc = std::allocator<_Key> > + class multiset + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Key, _SGIAssignableConcept) +# endif + __glibcxx_class_requires4(_Compare, bool, _Key, _Key, + _BinaryFunctionConcept) + __glibcxx_class_requires2(_Key, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L + static_assert(is_same::type, _Key>::value, + "std::multiset must have a non-const, non-volatile value_type"); +# if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::multiset must have the same value_type as its allocator"); +# endif +#endif + + public: + // typedefs: + typedef _Key key_type; + typedef _Key value_type; + typedef _Compare key_compare; + typedef _Compare value_compare; + typedef _Alloc allocator_type; + + private: + /// This turns a red-black tree into a [multi]set. + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Key>::other _Key_alloc_type; + + typedef _Rb_tree, + key_compare, _Key_alloc_type> _Rep_type; + /// The actual tree structure. + _Rep_type _M_t; + + typedef __gnu_cxx::__alloc_traits<_Key_alloc_type> _Alloc_traits; + + public: + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 103. set::iterator is required to be modifiable, + // but this allows modification of keys. + typedef typename _Rep_type::const_iterator iterator; + typedef typename _Rep_type::const_iterator const_iterator; + typedef typename _Rep_type::const_reverse_iterator reverse_iterator; + typedef typename _Rep_type::const_reverse_iterator const_reverse_iterator; + typedef typename _Rep_type::size_type size_type; + typedef typename _Rep_type::difference_type difference_type; + +#if __cplusplus > 201402L + using node_type = typename _Rep_type::node_type; +#endif + + // allocation/deallocation + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + multiset() : _M_t() { } +#else + multiset() = default; +#endif + + /** + * @brief Creates a %multiset with no elements. + * @param __comp Comparator to use. + * @param __a An allocator object. + */ + explicit + multiset(const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Key_alloc_type(__a)) { } + + /** + * @brief Builds a %multiset from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * + * Create a %multiset consisting of copies of the elements from + * [first,last). This is linear in N if the range is already sorted, + * and NlogN otherwise (where N is distance(__first,__last)). + */ + template + multiset(_InputIterator __first, _InputIterator __last) + : _M_t() + { _M_t._M_insert_range_equal(__first, __last); } + + /** + * @brief Builds a %multiset from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %multiset consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is already sorted, + * and NlogN otherwise (where N is distance(__first,__last)). + */ + template + multiset(_InputIterator __first, _InputIterator __last, + const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Key_alloc_type(__a)) + { _M_t._M_insert_range_equal(__first, __last); } + + /** + * @brief %Multiset copy constructor. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + multiset(const multiset& __x) + : _M_t(__x._M_t) { } +#else + multiset(const multiset&) = default; + + /** + * @brief %Multiset move constructor. + * + * The newly-created %multiset contains the exact contents of the + * moved instance. The moved instance is a valid, but unspecified + * %multiset. + */ + multiset(multiset&&) = default; + + /** + * @brief Builds a %multiset from an initializer_list. + * @param __l An initializer_list. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %multiset consisting of copies of the elements from + * the list. This is linear in N if the list is already sorted, + * and NlogN otherwise (where N is @a __l.size()). + */ + multiset(initializer_list __l, + const _Compare& __comp = _Compare(), + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Key_alloc_type(__a)) + { _M_t._M_insert_range_equal(__l.begin(), __l.end()); } + + /// Allocator-extended default constructor. + explicit + multiset(const allocator_type& __a) + : _M_t(_Key_alloc_type(__a)) { } + + /// Allocator-extended copy constructor. + multiset(const multiset& __m, const allocator_type& __a) + : _M_t(__m._M_t, _Key_alloc_type(__a)) { } + + /// Allocator-extended move constructor. + multiset(multiset&& __m, const allocator_type& __a) + noexcept(is_nothrow_copy_constructible<_Compare>::value + && _Alloc_traits::_S_always_equal()) + : _M_t(std::move(__m._M_t), _Key_alloc_type(__a)) { } + + /// Allocator-extended initialier-list constructor. + multiset(initializer_list __l, const allocator_type& __a) + : _M_t(_Key_alloc_type(__a)) + { _M_t._M_insert_range_equal(__l.begin(), __l.end()); } + + /// Allocator-extended range constructor. + template + multiset(_InputIterator __first, _InputIterator __last, + const allocator_type& __a) + : _M_t(_Key_alloc_type(__a)) + { _M_t._M_insert_range_equal(__first, __last); } + + /** + * The dtor only erases the elements, and note that if the elements + * themselves are pointers, the pointed-to memory is not touched in any + * way. Managing the pointer is the user's responsibility. + */ + ~multiset() = default; +#endif + + /** + * @brief %Multiset assignment operator. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + multiset& + operator=(const multiset& __x) + { + _M_t = __x._M_t; + return *this; + } +#else + multiset& + operator=(const multiset&) = default; + + /// Move assignment operator. + multiset& + operator=(multiset&&) = default; + + /** + * @brief %Multiset list assignment operator. + * @param __l An initializer_list. + * + * This function fills a %multiset with copies of the elements in the + * initializer list @a __l. + * + * Note that the assignment completely changes the %multiset and + * that the resulting %multiset's size is the same as the number + * of elements assigned. + */ + multiset& + operator=(initializer_list __l) + { + _M_t._M_assign_equal(__l.begin(), __l.end()); + return *this; + } +#endif + + // accessors: + + /// Returns the comparison object. + key_compare + key_comp() const + { return _M_t.key_comp(); } + /// Returns the comparison object. + value_compare + value_comp() const + { return _M_t.key_comp(); } + /// Returns the memory allocation object. + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_t.get_allocator()); } + + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %multiset. Iteration is done in ascending order + * according to the keys. + */ + iterator + begin() const _GLIBCXX_NOEXCEPT + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %multiset. Iteration is done in ascending order + * according to the keys. + */ + iterator + end() const _GLIBCXX_NOEXCEPT + { return _M_t.end(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last element in the %multiset. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last element in the %multiset. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return _M_t.rend(); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %multiset. Iteration is done in ascending order + * according to the keys. + */ + iterator + cbegin() const noexcept + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %multiset. Iteration is done in ascending order + * according to the keys. + */ + iterator + cend() const noexcept + { return _M_t.end(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last element in the %multiset. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + crbegin() const noexcept + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last element in the %multiset. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + crend() const noexcept + { return _M_t.rend(); } +#endif + + /// Returns true if the %set is empty. + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return _M_t.empty(); } + + /// Returns the size of the %set. + size_type + size() const _GLIBCXX_NOEXCEPT + { return _M_t.size(); } + + /// Returns the maximum size of the %set. + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _M_t.max_size(); } + + /** + * @brief Swaps data with another %multiset. + * @param __x A %multiset of the same element and allocator types. + * + * This exchanges the elements between two multisets in constant time. + * (It is only swapping a pointer, an integer, and an instance of the @c + * Compare type (which itself is often stateless and empty), so it should + * be quite fast.) + * Note that the global std::swap() function is specialized such that + * std::swap(s1,s2) will feed to this function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(multiset& __x) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Compare>::value) + { _M_t.swap(__x._M_t); } + + // insert/erase +#if __cplusplus >= 201103L + /** + * @brief Builds and inserts an element into the %multiset. + * @param __args Arguments used to generate the element instance to be + * inserted. + * @return An iterator that points to the inserted element. + * + * This function inserts an element into the %multiset. Contrary + * to a std::set the %multiset does not rely on unique keys and thus + * multiple copies of the same element can be inserted. + * + * Insertion requires logarithmic time. + */ + template + iterator + emplace(_Args&&... __args) + { return _M_t._M_emplace_equal(std::forward<_Args>(__args)...); } + + /** + * @brief Builds and inserts an element into the %multiset. + * @param __pos An iterator that serves as a hint as to where the + * element should be inserted. + * @param __args Arguments used to generate the element instance to be + * inserted. + * @return An iterator that points to the inserted element. + * + * This function inserts an element into the %multiset. Contrary + * to a std::set the %multiset does not rely on unique keys and thus + * multiple copies of the same element can be inserted. + * + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { + return _M_t._M_emplace_hint_equal(__pos, + std::forward<_Args>(__args)...); + } +#endif + + /** + * @brief Inserts an element into the %multiset. + * @param __x Element to be inserted. + * @return An iterator that points to the inserted element. + * + * This function inserts an element into the %multiset. Contrary + * to a std::set the %multiset does not rely on unique keys and thus + * multiple copies of the same element can be inserted. + * + * Insertion requires logarithmic time. + */ + iterator + insert(const value_type& __x) + { return _M_t._M_insert_equal(__x); } + +#if __cplusplus >= 201103L + iterator + insert(value_type&& __x) + { return _M_t._M_insert_equal(std::move(__x)); } +#endif + + /** + * @brief Inserts an element into the %multiset. + * @param __position An iterator that serves as a hint as to where the + * element should be inserted. + * @param __x Element to be inserted. + * @return An iterator that points to the inserted element. + * + * This function inserts an element into the %multiset. Contrary + * to a std::set the %multiset does not rely on unique keys and thus + * multiple copies of the same element can be inserted. + * + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + iterator + insert(const_iterator __position, const value_type& __x) + { return _M_t._M_insert_equal_(__position, __x); } + +#if __cplusplus >= 201103L + iterator + insert(const_iterator __position, value_type&& __x) + { return _M_t._M_insert_equal_(__position, std::move(__x)); } +#endif + + /** + * @brief A template function that tries to insert a range of elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_t._M_insert_range_equal(__first, __last); } + +#if __cplusplus >= 201103L + /** + * @brief Attempts to insert a list of elements into the %multiset. + * @param __l A std::initializer_list of elements + * to be inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { this->insert(__l.begin(), __l.end()); } +#endif + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_t.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __x) + { return _M_t.extract(__x); } + + /// Re-insert an extracted node. + iterator + insert(node_type&& __nh) + { return _M_t._M_reinsert_node_equal(std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator __hint, node_type&& __nh) + { return _M_t._M_reinsert_node_hint_equal(__hint, std::move(__nh)); } + + template + friend class std::_Rb_tree_merge_helper; + + template + void + merge(multiset<_Key, _Compare1, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_equal(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(multiset<_Key, _Compare1, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(set<_Key, _Compare1, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_equal(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(set<_Key, _Compare1, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases an element from a %multiset. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from a %multiset. Note that this function only erases the element, + * and that if the element is itself a pointer, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + */ + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(const_iterator __position) + { return _M_t.erase(__position); } +#else + /** + * @brief Erases an element from a %multiset. + * @param __position An iterator pointing to the element to be erased. + * + * This function erases an element, pointed to by the given iterator, + * from a %multiset. Note that this function only erases the element, + * and that if the element is itself a pointer, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + */ + void + erase(iterator __position) + { _M_t.erase(__position); } +#endif + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all elements located by the given key from a + * %multiset. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_t.erase(__x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases a [first,last) range of elements from a %multiset. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a last. + * + * This function erases a sequence of elements from a %multiset. + * Note that this function only erases the elements, and that if + * the elements themselves are pointers, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_t.erase(__first, __last); } +#else + /** + * @brief Erases a [first,last) range of elements from a %multiset. + * @param first Iterator pointing to the start of the range to be + * erased. + * @param last Iterator pointing to the end of the range to be erased. + * + * This function erases a sequence of elements from a %multiset. + * Note that this function only erases the elements, and that if + * the elements themselves are pointers, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + void + erase(iterator __first, iterator __last) + { _M_t.erase(__first, __last); } +#endif + + /** + * Erases all elements in a %multiset. Note that this function only + * erases the elements, and that if the elements themselves are pointers, + * the pointed-to memory is not touched in any way. Managing the pointer + * is the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { _M_t.clear(); } + + // multiset operations: + + //@{ + /** + * @brief Finds the number of elements with given key. + * @param __x Key of elements to be located. + * @return Number of elements with specified key. + */ + size_type + count(const key_type& __x) const + { return _M_t.count(__x); } + +#if __cplusplus > 201103L + template + auto + count(const _Kt& __x) const -> decltype(_M_t._M_count_tr(__x)) + { return _M_t._M_count_tr(__x); } +#endif + //@} + +#if __cplusplus > 201703L + //@{ + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of elements to be located. + * @return True if there is any element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_t.find(__x) != _M_t.end(); } + + template + auto + contains(const _Kt& __x) const + -> decltype(_M_t._M_find_tr(__x), void(), true) + { return _M_t._M_find_tr(__x) != _M_t.end(); } + //@} +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 214. set::find() missing const overload + //@{ + /** + * @brief Tries to locate an element in a %set. + * @param __x Element to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after element. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_t.find(__x); } + + const_iterator + find(const key_type& __x) const + { return _M_t.find(__x); } + +#if __cplusplus > 201103L + template + auto + find(const _Kt& __x) + -> decltype(iterator{_M_t._M_find_tr(__x)}) + { return iterator{_M_t._M_find_tr(__x)}; } + + template + auto + find(const _Kt& __x) const + -> decltype(const_iterator{_M_t._M_find_tr(__x)}) + { return const_iterator{_M_t._M_find_tr(__x)}; } +#endif + //@} + + //@{ + /** + * @brief Finds the beginning of a subsequence matching given key. + * @param __x Key to be located. + * @return Iterator pointing to first element equal to or greater + * than key, or end(). + * + * This function returns the first element of a subsequence of elements + * that matches the given key. If unsuccessful it returns an iterator + * pointing to the first element that has a greater value than given key + * or end() if no such element exists. + */ + iterator + lower_bound(const key_type& __x) + { return _M_t.lower_bound(__x); } + + const_iterator + lower_bound(const key_type& __x) const + { return _M_t.lower_bound(__x); } + +#if __cplusplus > 201103L + template + auto + lower_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_lower_bound_tr(__x))) + { return iterator(_M_t._M_lower_bound_tr(__x)); } + + template + auto + lower_bound(const _Kt& __x) const + -> decltype(iterator(_M_t._M_lower_bound_tr(__x))) + { return iterator(_M_t._M_lower_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the end of a subsequence matching given key. + * @param __x Key to be located. + * @return Iterator pointing to the first element + * greater than key, or end(). + */ + iterator + upper_bound(const key_type& __x) + { return _M_t.upper_bound(__x); } + + const_iterator + upper_bound(const key_type& __x) const + { return _M_t.upper_bound(__x); } + +#if __cplusplus > 201103L + template + auto + upper_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_upper_bound_tr(__x))) + { return iterator(_M_t._M_upper_bound_tr(__x)); } + + template + auto + upper_bound(const _Kt& __x) const + -> decltype(iterator(_M_t._M_upper_bound_tr(__x))) + { return iterator(_M_t._M_upper_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + * + * This function is equivalent to + * @code + * std::make_pair(c.lower_bound(val), + * c.upper_bound(val)) + * @endcode + * (but is faster than making the calls separately). + * + * This function probably only makes sense for multisets. + */ + std::pair + equal_range(const key_type& __x) + { return _M_t.equal_range(__x); } + + std::pair + equal_range(const key_type& __x) const + { return _M_t.equal_range(__x); } + +#if __cplusplus > 201103L + template + auto + equal_range(const _Kt& __x) + -> decltype(pair(_M_t._M_equal_range_tr(__x))) + { return pair(_M_t._M_equal_range_tr(__x)); } + + template + auto + equal_range(const _Kt& __x) const + -> decltype(pair(_M_t._M_equal_range_tr(__x))) + { return pair(_M_t._M_equal_range_tr(__x)); } +#endif + //@} + + template + friend bool + operator==(const multiset<_K1, _C1, _A1>&, + const multiset<_K1, _C1, _A1>&); + +#if __cpp_lib_three_way_comparison + template + friend __detail::__synth3way_t<_K1> + operator<=>(const multiset<_K1, _C1, _A1>&, + const multiset<_K1, _C1, _A1>&); +#else + template + friend bool + operator< (const multiset<_K1, _C1, _A1>&, + const multiset<_K1, _C1, _A1>&); +#endif + }; + +#if __cpp_deduction_guides >= 201606 + + template::value_type>, + typename _Allocator = + allocator::value_type>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + multiset(_InputIterator, _InputIterator, + _Compare = _Compare(), _Allocator = _Allocator()) + -> multiset::value_type, + _Compare, _Allocator>; + + template, + typename _Allocator = allocator<_Key>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + multiset(initializer_list<_Key>, + _Compare = _Compare(), _Allocator = _Allocator()) + -> multiset<_Key, _Compare, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + multiset(_InputIterator, _InputIterator, _Allocator) + -> multiset::value_type, + less::value_type>, + _Allocator>; + + template> + multiset(initializer_list<_Key>, _Allocator) + -> multiset<_Key, less<_Key>, _Allocator>; + +#endif // deduction guides + + /** + * @brief Multiset equality comparison. + * @param __x A %multiset. + * @param __y A %multiset of the same type as @a __x. + * @return True iff the size and elements of the multisets are equal. + * + * This is an equivalence relation. It is linear in the size of the + * multisets. + * Multisets are considered equivalent if their sizes are equal, and if + * corresponding elements compare equal. + */ + template + inline bool + operator==(const multiset<_Key, _Compare, _Alloc>& __x, + const multiset<_Key, _Compare, _Alloc>& __y) + { return __x._M_t == __y._M_t; } + +#if __cpp_lib_three_way_comparison + /** + * @brief Multiset ordering relation. + * @param __x A `multiset`. + * @param __y A `multiset` of the same type as `x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * This is a total ordering relation. It is linear in the size of the + * maps. The elements must be comparable with @c <. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t<_Key> + operator<=>(const multiset<_Key, _Compare, _Alloc>& __x, + const multiset<_Key, _Compare, _Alloc>& __y) + { return __x._M_t <=> __y._M_t; } +#else + /** + * @brief Multiset ordering relation. + * @param __x A %multiset. + * @param __y A %multiset of the same type as @a __x. + * @return True iff @a __x is lexicographically less than @a __y. + * + * This is a total ordering relation. It is linear in the size of the + * sets. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const multiset<_Key, _Compare, _Alloc>& __x, + const multiset<_Key, _Compare, _Alloc>& __y) + { return __x._M_t < __y._M_t; } + + /// Returns !(x == y). + template + inline bool + operator!=(const multiset<_Key, _Compare, _Alloc>& __x, + const multiset<_Key, _Compare, _Alloc>& __y) + { return !(__x == __y); } + + /// Returns y < x. + template + inline bool + operator>(const multiset<_Key,_Compare,_Alloc>& __x, + const multiset<_Key,_Compare,_Alloc>& __y) + { return __y < __x; } + + /// Returns !(y < x) + template + inline bool + operator<=(const multiset<_Key, _Compare, _Alloc>& __x, + const multiset<_Key, _Compare, _Alloc>& __y) + { return !(__y < __x); } + + /// Returns !(x < y) + template + inline bool + operator>=(const multiset<_Key, _Compare, _Alloc>& __x, + const multiset<_Key, _Compare, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::multiset::swap(). + template + inline void + swap(multiset<_Key, _Compare, _Alloc>& __x, + multiset<_Key, _Compare, _Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus > 201402L + // Allow std::multiset access to internals of compatible sets. + template + struct + _Rb_tree_merge_helper<_GLIBCXX_STD_C::multiset<_Val, _Cmp1, _Alloc>, + _Cmp2> + { + private: + friend class _GLIBCXX_STD_C::multiset<_Val, _Cmp1, _Alloc>; + + static auto& + _S_get_tree(_GLIBCXX_STD_C::set<_Val, _Cmp2, _Alloc>& __set) + { return __set._M_t; } + + static auto& + _S_get_tree(_GLIBCXX_STD_C::multiset<_Val, _Cmp2, _Alloc>& __set) + { return __set._M_t; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_MULTISET_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_numeric.h b/resources/sources/avr-libstdcpp/include/bits/stl_numeric.h new file mode 100644 index 000000000..f95c86a0d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_numeric.h @@ -0,0 +1,413 @@ +// Numeric functions implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_numeric.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{numeric} + */ + +#ifndef _STL_NUMERIC_H +#define _STL_NUMERIC_H 1 + +#include +#include +#include // For _GLIBCXX_MOVE + + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** @defgroup numeric_ops Generalized Numeric operations + * @ingroup algorithms + */ + +#if __cplusplus >= 201103L + /** + * @brief Create a range of sequentially increasing values. + * + * For each element in the range @p [first,last) assigns @p value and + * increments @p value as if by @p ++value. + * + * @param __first Start of range. + * @param __last End of range. + * @param __value Starting value. + * @return Nothing. + * @ingroup numeric_ops + */ + template + _GLIBCXX20_CONSTEXPR + void + iota(_ForwardIterator __first, _ForwardIterator __last, _Tp __value) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept< + _ForwardIterator>) + __glibcxx_function_requires(_ConvertibleConcept<_Tp, + typename iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + { + *__first = __value; + ++__value; + } + } +#endif + +_GLIBCXX_END_NAMESPACE_VERSION + +_GLIBCXX_BEGIN_NAMESPACE_ALGO + +#if __cplusplus > 201703L +// _GLIBCXX_RESOLVE_LIB_DEFECTS +// DR 2055. std::move in std::accumulate and other algorithms +# define _GLIBCXX_MOVE_IF_20(_E) std::move(_E) +#else +# define _GLIBCXX_MOVE_IF_20(_E) _E +#endif + + /// @addtogroup numeric_ops + /// @{ + + /** + * @brief Accumulate values in a range. + * + * Accumulates the values in the range [first,last) using operator+(). The + * initial value is @a init. The values are processed in order. + * + * @param __first Start of range. + * @param __last End of range. + * @param __init Starting value to add other values to. + * @return The final sum. + */ + template + _GLIBCXX20_CONSTEXPR + inline _Tp + accumulate(_InputIterator __first, _InputIterator __last, _Tp __init) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + __init = _GLIBCXX_MOVE_IF_20(__init) + *__first; + return __init; + } + + /** + * @brief Accumulate values in a range with operation. + * + * Accumulates the values in the range `[first,last)` using the function + * object `__binary_op`. The initial value is `__init`. The values are + * processed in order. + * + * @param __first Start of range. + * @param __last End of range. + * @param __init Starting value to add other values to. + * @param __binary_op Function object to accumulate with. + * @return The final sum. + */ + template + _GLIBCXX20_CONSTEXPR + inline _Tp + accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, + _BinaryOperation __binary_op) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_requires_valid_range(__first, __last); + + for (; __first != __last; ++__first) + __init = __binary_op(_GLIBCXX_MOVE_IF_20(__init), *__first); + return __init; + } + + /** + * @brief Compute inner product of two ranges. + * + * Starting with an initial value of @p __init, multiplies successive + * elements from the two ranges and adds each product into the accumulated + * value using operator+(). The values in the ranges are processed in + * order. + * + * @param __first1 Start of range 1. + * @param __last1 End of range 1. + * @param __first2 Start of range 2. + * @param __init Starting value to add other values to. + * @return The final inner product. + */ + template + _GLIBCXX20_CONSTEXPR + inline _Tp + inner_product(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _Tp __init) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_requires_valid_range(__first1, __last1); + + for (; __first1 != __last1; ++__first1, (void)++__first2) + __init = _GLIBCXX_MOVE_IF_20(__init) + (*__first1 * *__first2); + return __init; + } + + /** + * @brief Compute inner product of two ranges. + * + * Starting with an initial value of @p __init, applies @p __binary_op2 to + * successive elements from the two ranges and accumulates each result into + * the accumulated value using @p __binary_op1. The values in the ranges are + * processed in order. + * + * @param __first1 Start of range 1. + * @param __last1 End of range 1. + * @param __first2 Start of range 2. + * @param __init Starting value to add other values to. + * @param __binary_op1 Function object to accumulate with. + * @param __binary_op2 Function object to apply to pairs of input values. + * @return The final inner product. + */ + template + _GLIBCXX20_CONSTEXPR + inline _Tp + inner_product(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _Tp __init, + _BinaryOperation1 __binary_op1, + _BinaryOperation2 __binary_op2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_requires_valid_range(__first1, __last1); + + for (; __first1 != __last1; ++__first1, (void)++__first2) + __init = __binary_op1(_GLIBCXX_MOVE_IF_20(__init), + __binary_op2(*__first1, *__first2)); + return __init; + } + + /** + * @brief Return list of partial sums + * + * Accumulates the values in the range [first,last) using the @c + operator. + * As each successive input value is added into the total, that partial sum + * is written to @p __result. Therefore, the first value in @p __result is + * the first value of the input, the second value in @p __result is the sum + * of the first and second input values, and so on. + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Output sum. + * @return Iterator pointing just beyond the values written to __result. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + partial_sum(_InputIterator __first, _InputIterator __last, + _OutputIterator __result) + { + typedef typename iterator_traits<_InputIterator>::value_type _ValueType; + + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + _ValueType>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return __result; + _ValueType __value = *__first; + *__result = __value; + while (++__first != __last) + { + __value = _GLIBCXX_MOVE_IF_20(__value) + *__first; + *++__result = __value; + } + return ++__result; + } + + /** + * @brief Return list of partial sums + * + * Accumulates the values in the range [first,last) using @p __binary_op. + * As each successive input value is added into the total, that partial sum + * is written to @p __result. Therefore, the first value in @p __result is + * the first value of the input, the second value in @p __result is the sum + * of the first and second input values, and so on. + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Output sum. + * @param __binary_op Function object. + * @return Iterator pointing just beyond the values written to __result. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + partial_sum(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _BinaryOperation __binary_op) + { + typedef typename iterator_traits<_InputIterator>::value_type _ValueType; + + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + _ValueType>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return __result; + _ValueType __value = *__first; + *__result = __value; + while (++__first != __last) + { + __value = __binary_op(_GLIBCXX_MOVE_IF_20(__value), *__first); + *++__result = __value; + } + return ++__result; + } + + /** + * @brief Return differences between adjacent values. + * + * Computes the difference between adjacent values in the range + * [first,last) using operator-() and writes the result to @p __result. + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Output sums. + * @return Iterator pointing just beyond the values written to result. + * + * _GLIBCXX_RESOLVE_LIB_DEFECTS + * DR 539. partial_sum and adjacent_difference should mention requirements + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + adjacent_difference(_InputIterator __first, + _InputIterator __last, _OutputIterator __result) + { + typedef typename iterator_traits<_InputIterator>::value_type _ValueType; + + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + _ValueType>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return __result; + _ValueType __value = *__first; + *__result = __value; + while (++__first != __last) + { + _ValueType __tmp = *__first; + *++__result = __tmp - _GLIBCXX_MOVE_IF_20(__value); + __value = _GLIBCXX_MOVE(__tmp); + } + return ++__result; + } + + /** + * @brief Return differences between adjacent values. + * + * Computes the difference between adjacent values in the range + * [__first,__last) using the function object @p __binary_op and writes the + * result to @p __result. + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Output sum. + * @param __binary_op Function object. + * @return Iterator pointing just beyond the values written to result. + * + * _GLIBCXX_RESOLVE_LIB_DEFECTS + * DR 539. partial_sum and adjacent_difference should mention requirements + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + adjacent_difference(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _BinaryOperation __binary_op) + { + typedef typename iterator_traits<_InputIterator>::value_type _ValueType; + + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + _ValueType>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return __result; + _ValueType __value = *__first; + *__result = __value; + while (++__first != __last) + { + _ValueType __tmp = *__first; + *++__result = __binary_op(__tmp, _GLIBCXX_MOVE_IF_20(__value)); + __value = _GLIBCXX_MOVE(__tmp); + } + return ++__result; + } + + // @} group numeric_ops + +#undef _GLIBCXX_MOVE_IF_20 + +_GLIBCXX_END_NAMESPACE_ALGO +} // namespace std + +#endif /* _STL_NUMERIC_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_pair.h b/resources/sources/avr-libstdcpp/include/bits/stl_pair.h new file mode 100644 index 000000000..491c59907 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_pair.h @@ -0,0 +1,586 @@ +// Pair implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_pair.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{utility} + */ + +#ifndef _STL_PAIR_H +#define _STL_PAIR_H 1 + +#include // for std::move / std::forward, and std::swap + +#if __cplusplus >= 201103L +# include // for std::__decay_and_strip, std::is_reference_v +#endif +#if __cplusplus > 201703L +# include +# define __cpp_lib_constexpr_utility 201811L +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup utilities + * @{ + */ + +#if __cplusplus >= 201103L + /// Tag type for piecewise construction of std::pair objects. + struct piecewise_construct_t { explicit piecewise_construct_t() = default; }; + + /// Tag for piecewise construction of std::pair objects. + _GLIBCXX17_INLINE constexpr piecewise_construct_t piecewise_construct = + piecewise_construct_t(); + + /// @cond undocumented + + // Forward declarations. + template + class tuple; + + template + struct _Index_tuple; + + // Concept utility functions, reused in conditionally-explicit + // constructors. + // See PR 70437, don't look at is_constructible or + // is_convertible if the types are the same to + // avoid querying those properties for incomplete types. + template + struct _PCC + { + template + static constexpr bool _ConstructiblePair() + { + return __and_, + is_constructible<_T2, const _U2&>>::value; + } + + template + static constexpr bool _ImplicitlyConvertiblePair() + { + return __and_, + is_convertible>::value; + } + + template + static constexpr bool _MoveConstructiblePair() + { + return __and_, + is_constructible<_T2, _U2&&>>::value; + } + + template + static constexpr bool _ImplicitlyMoveConvertiblePair() + { + return __and_, + is_convertible<_U2&&, _T2>>::value; + } + + template + static constexpr bool _CopyMovePair() + { + using __do_converts = __and_, + is_convertible<_U2&&, _T2>>; + using __converts = typename conditional<__implicit, + __do_converts, + __not_<__do_converts>>::type; + return __and_, + is_constructible<_T2, _U2&&>, + __converts + >::value; + } + + template + static constexpr bool _MoveCopyPair() + { + using __do_converts = __and_, + is_convertible>; + using __converts = typename conditional<__implicit, + __do_converts, + __not_<__do_converts>>::type; + return __and_, + is_constructible<_T2, const _U2&&>, + __converts + >::value; + } + }; + + template + struct _PCC + { + template + static constexpr bool _ConstructiblePair() + { + return false; + } + + template + static constexpr bool _ImplicitlyConvertiblePair() + { + return false; + } + + template + static constexpr bool _MoveConstructiblePair() + { + return false; + } + + template + static constexpr bool _ImplicitlyMoveConvertiblePair() + { + return false; + } + }; +#endif // C++11 + + template class __pair_base + { +#if __cplusplus >= 201103L + template friend struct pair; + __pair_base() = default; + ~__pair_base() = default; + __pair_base(const __pair_base&) = default; + __pair_base& operator=(const __pair_base&) = delete; +#endif // C++11 + }; + + /// @endcond + + /** + * @brief Struct holding two objects of arbitrary type. + * + * @tparam _T1 Type of first object. + * @tparam _T2 Type of second object. + * + * + */ + template + struct pair + : private __pair_base<_T1, _T2> + { + typedef _T1 first_type; ///< The type of the `first` member + typedef _T2 second_type; ///< The type of the `second` member + + _T1 first; ///< The first member + _T2 second; ///< The second member + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 265. std::pair::pair() effects overly restrictive + /** The default constructor creates @c first and @c second using their + * respective default constructors. */ +#if __cplusplus >= 201103L + template , + __is_implicitly_default_constructible<_U2>> + ::value, bool>::type = true> +#endif + _GLIBCXX_CONSTEXPR pair() + : first(), second() { } + +#if __cplusplus >= 201103L + template , + is_default_constructible<_U2>, + __not_< + __and_<__is_implicitly_default_constructible<_U1>, + __is_implicitly_default_constructible<_U2>>>> + ::value, bool>::type = false> + explicit constexpr pair() + : first(), second() { } +#endif + +#if __cplusplus < 201103L + /// Two objects may be passed to a @c pair constructor to be copied. + pair(const _T1& __a, const _T2& __b) + : first(__a), second(__b) { } +#else + // Shortcut for constraining the templates that don't take pairs. + /// @cond undocumented + using _PCCP = _PCC; + /// @endcond + + /// Construct from two const lvalues, allowing implicit conversions. + template() + && _PCCP::template + _ImplicitlyConvertiblePair<_U1, _U2>(), + bool>::type=true> + constexpr pair(const _T1& __a, const _T2& __b) + : first(__a), second(__b) { } + + /// Construct from two const lvalues, disallowing implicit conversions. + template() + && !_PCCP::template + _ImplicitlyConvertiblePair<_U1, _U2>(), + bool>::type=false> + explicit constexpr pair(const _T1& __a, const _T2& __b) + : first(__a), second(__b) { } +#endif + +#if __cplusplus < 201103L + /// There is also a templated constructor to convert from other pairs. + template + pair(const pair<_U1, _U2>& __p) + : first(__p.first), second(__p.second) { } +#else + // Shortcut for constraining the templates that take pairs. + /// @cond undocumented + template + using _PCCFP = _PCC::value + || !is_same<_T2, _U2>::value, + _T1, _T2>; + /// @endcond + + template::template + _ConstructiblePair<_U1, _U2>() + && _PCCFP<_U1, _U2>::template + _ImplicitlyConvertiblePair<_U1, _U2>(), + bool>::type=true> + constexpr pair(const pair<_U1, _U2>& __p) + : first(__p.first), second(__p.second) { } + + template::template + _ConstructiblePair<_U1, _U2>() + && !_PCCFP<_U1, _U2>::template + _ImplicitlyConvertiblePair<_U1, _U2>(), + bool>::type=false> + explicit constexpr pair(const pair<_U1, _U2>& __p) + : first(__p.first), second(__p.second) { } +#endif + +#if __cplusplus >= 201103L + constexpr pair(const pair&) = default; ///< Copy constructor + constexpr pair(pair&&) = default; ///< Move constructor + + // DR 811. + template(), + bool>::type=true> + constexpr pair(_U1&& __x, const _T2& __y) + : first(std::forward<_U1>(__x)), second(__y) { } + + template(), + bool>::type=false> + explicit constexpr pair(_U1&& __x, const _T2& __y) + : first(std::forward<_U1>(__x)), second(__y) { } + + template(), + bool>::type=true> + constexpr pair(const _T1& __x, _U2&& __y) + : first(__x), second(std::forward<_U2>(__y)) { } + + template(), + bool>::type=false> + explicit pair(const _T1& __x, _U2&& __y) + : first(__x), second(std::forward<_U2>(__y)) { } + + template() + && _PCCP::template + _ImplicitlyMoveConvertiblePair<_U1, _U2>(), + bool>::type=true> + constexpr pair(_U1&& __x, _U2&& __y) + : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { } + + template() + && !_PCCP::template + _ImplicitlyMoveConvertiblePair<_U1, _U2>(), + bool>::type=false> + explicit constexpr pair(_U1&& __x, _U2&& __y) + : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { } + + + template::template + _MoveConstructiblePair<_U1, _U2>() + && _PCCFP<_U1, _U2>::template + _ImplicitlyMoveConvertiblePair<_U1, _U2>(), + bool>::type=true> + constexpr pair(pair<_U1, _U2>&& __p) + : first(std::forward<_U1>(__p.first)), + second(std::forward<_U2>(__p.second)) { } + + template::template + _MoveConstructiblePair<_U1, _U2>() + && !_PCCFP<_U1, _U2>::template + _ImplicitlyMoveConvertiblePair<_U1, _U2>(), + bool>::type=false> + explicit constexpr pair(pair<_U1, _U2>&& __p) + : first(std::forward<_U1>(__p.first)), + second(std::forward<_U2>(__p.second)) { } + + template + _GLIBCXX20_CONSTEXPR + pair(piecewise_construct_t, tuple<_Args1...>, tuple<_Args2...>); + + _GLIBCXX20_CONSTEXPR pair& + operator=(typename conditional< + __and_, + is_copy_assignable<_T2>>::value, + const pair&, const __nonesuch&>::type __p) + { + first = __p.first; + second = __p.second; + return *this; + } + + _GLIBCXX20_CONSTEXPR pair& + operator=(typename conditional< + __and_, + is_move_assignable<_T2>>::value, + pair&&, __nonesuch&&>::type __p) + noexcept(__and_, + is_nothrow_move_assignable<_T2>>::value) + { + first = std::forward(__p.first); + second = std::forward(__p.second); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + typename enable_if<__and_, + is_assignable<_T2&, const _U2&>>::value, + pair&>::type + operator=(const pair<_U1, _U2>& __p) + { + first = __p.first; + second = __p.second; + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + typename enable_if<__and_, + is_assignable<_T2&, _U2&&>>::value, + pair&>::type + operator=(pair<_U1, _U2>&& __p) + { + first = std::forward<_U1>(__p.first); + second = std::forward<_U2>(__p.second); + return *this; + } + + /// Swap the first members and then the second members. + _GLIBCXX20_CONSTEXPR void + swap(pair& __p) + noexcept(__and_<__is_nothrow_swappable<_T1>, + __is_nothrow_swappable<_T2>>::value) + { + using std::swap; + swap(first, __p.first); + swap(second, __p.second); + } + + private: + template + _GLIBCXX20_CONSTEXPR + pair(tuple<_Args1...>&, tuple<_Args2...>&, + _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>); +#endif // C++11 + }; + + /// @relates pair @{ + +#if __cpp_deduction_guides >= 201606 + template pair(_T1, _T2) -> pair<_T1, _T2>; +#endif + + /// Two pairs of the same type are equal iff their members are equal. + template + inline _GLIBCXX_CONSTEXPR bool + operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { return __x.first == __y.first && __x.second == __y.second; } + +#if __cpp_lib_three_way_comparison && __cpp_lib_concepts + template + constexpr common_comparison_category_t<__detail::__synth3way_t<_T1>, + __detail::__synth3way_t<_T2>> + operator<=>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { + if (auto __c = __detail::__synth3way(__x.first, __y.first); __c != 0) + return __c; + return __detail::__synth3way(__x.second, __y.second); + } +#else + /** Defines a lexicographical order for pairs. + * + * For two pairs of the same type, `P` is ordered before `Q` if + * `P.first` is less than `Q.first`, or if `P.first` and `Q.first` + * are equivalent (neither is less than the other) and `P.second` is less + * than `Q.second`. + */ + template + inline _GLIBCXX_CONSTEXPR bool + operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { return __x.first < __y.first + || (!(__y.first < __x.first) && __x.second < __y.second); } + + /// Uses @c operator== to find the result. + template + inline _GLIBCXX_CONSTEXPR bool + operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { return !(__x == __y); } + + /// Uses @c operator< to find the result. + template + inline _GLIBCXX_CONSTEXPR bool + operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { return __y < __x; } + + /// Uses @c operator< to find the result. + template + inline _GLIBCXX_CONSTEXPR bool + operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { return !(__y < __x); } + + /// Uses @c operator< to find the result. + template + inline _GLIBCXX_CONSTEXPR bool + operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) + { return !(__x < __y); } +#endif // !(three_way_comparison && concepts) + +#if __cplusplus >= 201103L + /** Swap overload for pairs. Calls std::pair::swap(). + * + * @note This std::swap overload is not declared in C++03 mode, + * which has performance implications, e.g. see https://gcc.gnu.org/PR38466 + */ + template + _GLIBCXX20_CONSTEXPR inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if<__and_<__is_swappable<_T1>, + __is_swappable<_T2>>::value>::type +#else + void +#endif + swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + template + typename enable_if, + __is_swappable<_T2>>::value>::type + swap(pair<_T1, _T2>&, pair<_T1, _T2>&) = delete; +#endif +#endif // __cplusplus >= 201103L + + // @} relates pair + + /** + * @brief A convenience wrapper for creating a pair from two objects. + * @param __x The first object. + * @param __y The second object. + * @return A newly-constructed pair<> object of the appropriate type. + * + * The C++98 standard says the objects are passed by reference-to-const, + * but C++03 says they are passed by value (this was LWG issue #181). + * + * Since C++11 they have been passed by forwarding reference and then + * forwarded to the new members of the pair. To create a pair with a + * member of reference type, pass a `reference_wrapper` to this function. + */ + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 181. make_pair() unintended behavior +#if __cplusplus >= 201103L + // NB: DR 706. + template + constexpr pair::__type, + typename __decay_and_strip<_T2>::__type> + make_pair(_T1&& __x, _T2&& __y) + { + typedef typename __decay_and_strip<_T1>::__type __ds_type1; + typedef typename __decay_and_strip<_T2>::__type __ds_type2; + typedef pair<__ds_type1, __ds_type2> __pair_type; + return __pair_type(std::forward<_T1>(__x), std::forward<_T2>(__y)); + } +#else + template + inline pair<_T1, _T2> + make_pair(_T1 __x, _T2 __y) + { return pair<_T1, _T2>(__x, __y); } +#endif + + /// @} + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_PAIR_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_queue.h b/resources/sources/avr-libstdcpp/include/bits/stl_queue.h new file mode 100644 index 000000000..8635d4267 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_queue.h @@ -0,0 +1,753 @@ +// Queue implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_queue.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{queue} + */ + +#ifndef _STL_QUEUE_H +#define _STL_QUEUE_H 1 + +#include +#include +#if __cplusplus >= 201103L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief A standard container giving FIFO behavior. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Sequence Type of underlying sequence, defaults to deque<_Tp>. + * + * Meets many of the requirements of a + * container, + * but does not define anything to do with iterators. Very few of the + * other standard container interfaces are defined. + * + * This is not a true container, but an @e adaptor. It holds another + * container, and provides a wrapper interface to that container. The + * wrapper is what enforces strict first-in-first-out %queue behavior. + * + * The second template parameter defines the type of the underlying + * sequence/container. It defaults to std::deque, but it can be any type + * that supports @c front, @c back, @c push_back, and @c pop_front, + * such as std::list or an appropriate user-defined type. + * + * Members not found in @a normal containers are @c container_type, + * which is a typedef for the second Sequence parameter, and @c push and + * @c pop, which are standard %queue/FIFO operations. + */ + template > + class queue + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Sequence::value_type _Sequence_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires(_Sequence, _FrontInsertionSequenceConcept) + __glibcxx_class_requires(_Sequence, _BackInsertionSequenceConcept) + __glibcxx_class_requires2(_Tp, _Sequence_value_type, _SameTypeConcept) +#endif + + template + friend bool + operator==(const queue<_Tp1, _Seq1>&, const queue<_Tp1, _Seq1>&); + + template + friend bool + operator<(const queue<_Tp1, _Seq1>&, const queue<_Tp1, _Seq1>&); + +#if __cpp_lib_three_way_comparison + template + friend compare_three_way_result_t<_Seq1> + operator<=>(const queue<_Tp1, _Seq1>&, const queue<_Tp1, _Seq1>&); +#endif + +#if __cplusplus >= 201103L + template + using _Uses = typename + enable_if::value>::type; + +#if __cplusplus >= 201703L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2566. Requirements on the first template parameter of container + // adaptors + static_assert(is_same<_Tp, typename _Sequence::value_type>::value, + "value_type must be the same as the underlying container"); +#endif // C++17 +#endif // C++11 + + public: + typedef typename _Sequence::value_type value_type; + typedef typename _Sequence::reference reference; + typedef typename _Sequence::const_reference const_reference; + typedef typename _Sequence::size_type size_type; + typedef _Sequence container_type; + + protected: + /* Maintainers wondering why this isn't uglified as per style + * guidelines should note that this name is specified in the standard, + * C++98 [23.2.3.1]. + * (Why? Presumably for the same reason that it's protected instead + * of private: to allow derivation. But none of the other + * containers allow for derivation. Odd.) + */ + /// @c c is the underlying container. + _Sequence c; + + public: + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + explicit + queue(const _Sequence& __c = _Sequence()) + : c(__c) { } +#else + template::value>::type> + queue() + : c() { } + + explicit + queue(const _Sequence& __c) + : c(__c) { } + + explicit + queue(_Sequence&& __c) + : c(std::move(__c)) { } + + template> + explicit + queue(const _Alloc& __a) + : c(__a) { } + + template> + queue(const _Sequence& __c, const _Alloc& __a) + : c(__c, __a) { } + + template> + queue(_Sequence&& __c, const _Alloc& __a) + : c(std::move(__c), __a) { } + + template> + queue(const queue& __q, const _Alloc& __a) + : c(__q.c, __a) { } + + template> + queue(queue&& __q, const _Alloc& __a) + : c(std::move(__q.c), __a) { } +#endif + + /** + * Returns true if the %queue is empty. + */ + _GLIBCXX_NODISCARD bool + empty() const + { return c.empty(); } + + /** Returns the number of elements in the %queue. */ + size_type + size() const + { return c.size(); } + + /** + * Returns a read/write reference to the data at the first + * element of the %queue. + */ + reference + front() + { + __glibcxx_requires_nonempty(); + return c.front(); + } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %queue. + */ + const_reference + front() const + { + __glibcxx_requires_nonempty(); + return c.front(); + } + + /** + * Returns a read/write reference to the data at the last + * element of the %queue. + */ + reference + back() + { + __glibcxx_requires_nonempty(); + return c.back(); + } + + /** + * Returns a read-only (constant) reference to the data at the last + * element of the %queue. + */ + const_reference + back() const + { + __glibcxx_requires_nonempty(); + return c.back(); + } + + /** + * @brief Add data to the end of the %queue. + * @param __x Data to be added. + * + * This is a typical %queue operation. The function creates an + * element at the end of the %queue and assigns the given data + * to it. The time complexity of the operation depends on the + * underlying sequence. + */ + void + push(const value_type& __x) + { c.push_back(__x); } + +#if __cplusplus >= 201103L + void + push(value_type&& __x) + { c.push_back(std::move(__x)); } + +#if __cplusplus > 201402L + template + decltype(auto) + emplace(_Args&&... __args) + { return c.emplace_back(std::forward<_Args>(__args)...); } +#else + template + void + emplace(_Args&&... __args) + { c.emplace_back(std::forward<_Args>(__args)...); } +#endif +#endif + + /** + * @brief Removes first element. + * + * This is a typical %queue operation. It shrinks the %queue by one. + * The time complexity of the operation depends on the underlying + * sequence. + * + * Note that no data is returned, and if the first element's + * data is needed, it should be retrieved before pop() is + * called. + */ + void + pop() + { + __glibcxx_requires_nonempty(); + c.pop_front(); + } + +#if __cplusplus >= 201103L + void + swap(queue& __q) +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + noexcept(__is_nothrow_swappable<_Sequence>::value) +#else + noexcept(__is_nothrow_swappable<_Tp>::value) +#endif + { + using std::swap; + swap(c, __q.c); + } +#endif // __cplusplus >= 201103L + }; + +#if __cpp_deduction_guides >= 201606 + template> + queue(_Container) -> queue; + + template, + typename = _RequireAllocator<_Allocator>> + queue(_Container, _Allocator) + -> queue; +#endif + + /** + * @brief Queue equality comparison. + * @param __x A %queue. + * @param __y A %queue of the same type as @a __x. + * @return True iff the size and elements of the queues are equal. + * + * This is an equivalence relation. Complexity and semantics depend on the + * underlying sequence type, but the expected rules are: this relation is + * linear in the size of the sequences, and queues are considered equivalent + * if their sequences compare equal. + */ + template + inline bool + operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return __x.c == __y.c; } + + /** + * @brief Queue ordering relation. + * @param __x A %queue. + * @param __y A %queue of the same type as @a x. + * @return True iff @a __x is lexicographically less than @a __y. + * + * This is an total ordering relation. Complexity and semantics + * depend on the underlying sequence type, but the expected rules + * are: this relation is linear in the size of the sequences, the + * elements must be comparable with @c <, and + * std::lexicographical_compare() is usually used to make the + * determination. + */ + template + inline bool + operator<(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return __x.c < __y.c; } + + /// Based on operator== + template + inline bool + operator!=(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return !(__x < __y); } + +#if __cpp_lib_three_way_comparison + template + inline compare_three_way_result_t<_Seq> + operator<=>(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) + { return __x.c <=> __y.c; } +#endif + +#if __cplusplus >= 201103L + template + inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if<__is_swappable<_Seq>::value>::type +#else + void +#endif + swap(queue<_Tp, _Seq>& __x, queue<_Tp, _Seq>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + struct uses_allocator, _Alloc> + : public uses_allocator<_Seq, _Alloc>::type { }; +#endif // __cplusplus >= 201103L + + /** + * @brief A standard container automatically sorting its contents. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Sequence Type of underlying sequence, defaults to vector<_Tp>. + * @tparam _Compare Comparison function object type, defaults to + * less<_Sequence::value_type>. + * + * This is not a true container, but an @e adaptor. It holds + * another container, and provides a wrapper interface to that + * container. The wrapper is what enforces priority-based sorting + * and %queue behavior. Very few of the standard container/sequence + * interface requirements are met (e.g., iterators). + * + * The second template parameter defines the type of the underlying + * sequence/container. It defaults to std::vector, but it can be + * any type that supports @c front(), @c push_back, @c pop_back, + * and random-access iterators, such as std::deque or an + * appropriate user-defined type. + * + * The third template parameter supplies the means of making + * priority comparisons. It defaults to @c less but + * can be anything defining a strict weak ordering. + * + * Members not found in @a normal containers are @c container_type, + * which is a typedef for the second Sequence parameter, and @c + * push, @c pop, and @c top, which are standard %queue operations. + * + * @note No equality/comparison operators are provided for + * %priority_queue. + * + * @note Sorting of the elements takes place as they are added to, + * and removed from, the %priority_queue using the + * %priority_queue's member functions. If you access the elements + * by other means, and change their data such that the sorting + * order would be different, the %priority_queue will not re-sort + * the elements for you. (How could it know to do so?) + */ + template, + typename _Compare = less > + class priority_queue + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Sequence::value_type _Sequence_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires(_Sequence, _SequenceConcept) + __glibcxx_class_requires(_Sequence, _RandomAccessContainerConcept) + __glibcxx_class_requires2(_Tp, _Sequence_value_type, _SameTypeConcept) + __glibcxx_class_requires4(_Compare, bool, _Tp, _Tp, + _BinaryFunctionConcept) +#endif + +#if __cplusplus >= 201103L + template + using _Uses = typename + enable_if::value>::type; + +#if __cplusplus >= 201703L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2566. Requirements on the first template parameter of container + // adaptors + static_assert(is_same<_Tp, typename _Sequence::value_type>::value, + "value_type must be the same as the underlying container"); +#endif // C++17 +#endif // C++11 + + public: + typedef typename _Sequence::value_type value_type; + typedef typename _Sequence::reference reference; + typedef typename _Sequence::const_reference const_reference; + typedef typename _Sequence::size_type size_type; + typedef _Sequence container_type; + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 2684. priority_queue lacking comparator typedef + typedef _Compare value_compare; + + protected: + // See queue::c for notes on these names. + _Sequence c; + _Compare comp; + + public: + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + explicit + priority_queue(const _Compare& __x = _Compare(), + const _Sequence& __s = _Sequence()) + : c(__s), comp(__x) + { std::make_heap(c.begin(), c.end(), comp); } +#else + template, + is_default_constructible<_Seq>>::value>::type> + priority_queue() + : c(), comp() { } + + explicit + priority_queue(const _Compare& __x, const _Sequence& __s) + : c(__s), comp(__x) + { std::make_heap(c.begin(), c.end(), comp); } + + explicit + priority_queue(const _Compare& __x, _Sequence&& __s = _Sequence()) + : c(std::move(__s)), comp(__x) + { std::make_heap(c.begin(), c.end(), comp); } + + template> + explicit + priority_queue(const _Alloc& __a) + : c(__a), comp() { } + + template> + priority_queue(const _Compare& __x, const _Alloc& __a) + : c(__a), comp(__x) { } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2537. Constructors [...] taking allocators should call make_heap + template> + priority_queue(const _Compare& __x, const _Sequence& __c, + const _Alloc& __a) + : c(__c, __a), comp(__x) + { std::make_heap(c.begin(), c.end(), comp); } + + template> + priority_queue(const _Compare& __x, _Sequence&& __c, const _Alloc& __a) + : c(std::move(__c), __a), comp(__x) + { std::make_heap(c.begin(), c.end(), comp); } + + template> + priority_queue(const priority_queue& __q, const _Alloc& __a) + : c(__q.c, __a), comp(__q.comp) { } + + template> + priority_queue(priority_queue&& __q, const _Alloc& __a) + : c(std::move(__q.c), __a), comp(std::move(__q.comp)) { } +#endif + + /** + * @brief Builds a %queue from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __x A comparison functor describing a strict weak ordering. + * @param __s An initial sequence with which to start. + * + * Begins by copying @a __s, inserting a copy of the elements + * from @a [first,last) into the copy of @a __s, then ordering + * the copy according to @a __x. + * + * For more information on function objects, see the + * documentation on @link functors functor base + * classes@endlink. + */ +#if __cplusplus < 201103L + template + priority_queue(_InputIterator __first, _InputIterator __last, + const _Compare& __x = _Compare(), + const _Sequence& __s = _Sequence()) + : c(__s), comp(__x) + { + __glibcxx_requires_valid_range(__first, __last); + c.insert(c.end(), __first, __last); + std::make_heap(c.begin(), c.end(), comp); + } +#else + template + priority_queue(_InputIterator __first, _InputIterator __last, + const _Compare& __x, + const _Sequence& __s) + : c(__s), comp(__x) + { + __glibcxx_requires_valid_range(__first, __last); + c.insert(c.end(), __first, __last); + std::make_heap(c.begin(), c.end(), comp); + } + + template + priority_queue(_InputIterator __first, _InputIterator __last, + const _Compare& __x = _Compare(), + _Sequence&& __s = _Sequence()) + : c(std::move(__s)), comp(__x) + { + __glibcxx_requires_valid_range(__first, __last); + c.insert(c.end(), __first, __last); + std::make_heap(c.begin(), c.end(), comp); + } +#endif + + /** + * Returns true if the %queue is empty. + */ + _GLIBCXX_NODISCARD bool + empty() const + { return c.empty(); } + + /** Returns the number of elements in the %queue. */ + size_type + size() const + { return c.size(); } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %queue. + */ + const_reference + top() const + { + __glibcxx_requires_nonempty(); + return c.front(); + } + + /** + * @brief Add data to the %queue. + * @param __x Data to be added. + * + * This is a typical %queue operation. + * The time complexity of the operation depends on the underlying + * sequence. + */ + void + push(const value_type& __x) + { + c.push_back(__x); + std::push_heap(c.begin(), c.end(), comp); + } + +#if __cplusplus >= 201103L + void + push(value_type&& __x) + { + c.push_back(std::move(__x)); + std::push_heap(c.begin(), c.end(), comp); + } + + template + void + emplace(_Args&&... __args) + { + c.emplace_back(std::forward<_Args>(__args)...); + std::push_heap(c.begin(), c.end(), comp); + } +#endif + + /** + * @brief Removes first element. + * + * This is a typical %queue operation. It shrinks the %queue + * by one. The time complexity of the operation depends on the + * underlying sequence. + * + * Note that no data is returned, and if the first element's + * data is needed, it should be retrieved before pop() is + * called. + */ + void + pop() + { + __glibcxx_requires_nonempty(); + std::pop_heap(c.begin(), c.end(), comp); + c.pop_back(); + } + +#if __cplusplus >= 201103L + void + swap(priority_queue& __pq) + noexcept(__and_< +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + __is_nothrow_swappable<_Sequence>, +#else + __is_nothrow_swappable<_Tp>, +#endif + __is_nothrow_swappable<_Compare> + >::value) + { + using std::swap; + swap(c, __pq.c); + swap(comp, __pq.comp); + } +#endif // __cplusplus >= 201103L + }; + +#if __cpp_deduction_guides >= 201606 + template, + typename = _RequireNotAllocator<_Container>> + priority_queue(_Compare, _Container) + -> priority_queue; + + template::value_type, + typename _Compare = less<_ValT>, + typename _Container = vector<_ValT>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireNotAllocator<_Container>> + priority_queue(_InputIterator, _InputIterator, _Compare = _Compare(), + _Container = _Container()) + -> priority_queue<_ValT, _Container, _Compare>; + + template, + typename = _RequireNotAllocator<_Container>, + typename = _RequireAllocator<_Allocator>> + priority_queue(_Compare, _Container, _Allocator) + -> priority_queue; +#endif + + // No equality/comparison operators are provided for priority_queue. + +#if __cplusplus >= 201103L + template + inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if<__and_<__is_swappable<_Sequence>, + __is_swappable<_Compare>>::value>::type +#else + void +#endif + swap(priority_queue<_Tp, _Sequence, _Compare>& __x, + priority_queue<_Tp, _Sequence, _Compare>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + struct uses_allocator, _Alloc> + : public uses_allocator<_Sequence, _Alloc>::type { }; +#endif // __cplusplus >= 201103L + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_QUEUE_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_raw_storage_iter.h b/resources/sources/avr-libstdcpp/include/bits/stl_raw_storage_iter.h new file mode 100644 index 000000000..df7a5f9df --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_raw_storage_iter.h @@ -0,0 +1,123 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_raw_storage_iter.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _STL_RAW_STORAGE_ITERATOR_H +#define _STL_RAW_STORAGE_ITERATOR_H 1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * This iterator class lets algorithms store their results into + * uninitialized memory. + */ + template + class raw_storage_iterator + : public iterator + { + protected: + _OutputIterator _M_iter; + + public: + explicit + raw_storage_iterator(_OutputIterator __x) + : _M_iter(__x) {} + + raw_storage_iterator& + operator*() { return *this; } + + raw_storage_iterator& + operator=(const _Tp& __element) + { + std::_Construct(std::__addressof(*_M_iter), __element); + return *this; + } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2127. Move-construction with raw_storage_iterator + raw_storage_iterator& + operator=(_Tp&& __element) + { + std::_Construct(std::__addressof(*_M_iter), std::move(__element)); + return *this; + } +#endif + + raw_storage_iterator& + operator++() + { + ++_M_iter; + return *this; + } + + raw_storage_iterator + operator++(int) + { + raw_storage_iterator __tmp = *this; + ++_M_iter; + return __tmp; + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2454. Add raw_storage_iterator::base() member + _OutputIterator base() const { return _M_iter; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_relops.h b/resources/sources/avr-libstdcpp/include/bits/stl_relops.h new file mode 100644 index 000000000..3b0afea8a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_relops.h @@ -0,0 +1,133 @@ +// std::rel_ops implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the, 2009 Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * Copyright (c) 1996,1997 + * Silicon Graphics + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file bits/stl_relops.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{utility} + * + * Inclusion of this file has been removed from + * all of the other STL headers for safety reasons, except std_utility.h. + * For more information, see the thread of about twenty messages starting + * with http://gcc.gnu.org/ml/libstdc++/2001-01/msg00223.html, or + * http://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.ambiguous_overloads + * + * Short summary: the rel_ops operators should be avoided for the present. + */ + +#ifndef _STL_RELOPS_H +#define _STL_RELOPS_H 1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + namespace rel_ops + { + /** @namespace std::rel_ops + * @brief The generated relational operators are sequestered here. + */ + + /** + * @brief Defines @c != for arbitrary types, in terms of @c ==. + * @param __x A thing. + * @param __y Another thing. + * @return __x != __y + * + * This function uses @c == to determine its result. + */ + template + inline bool + operator!=(const _Tp& __x, const _Tp& __y) + { return !(__x == __y); } + + /** + * @brief Defines @c > for arbitrary types, in terms of @c <. + * @param __x A thing. + * @param __y Another thing. + * @return __x > __y + * + * This function uses @c < to determine its result. + */ + template + inline bool + operator>(const _Tp& __x, const _Tp& __y) + { return __y < __x; } + + /** + * @brief Defines @c <= for arbitrary types, in terms of @c <. + * @param __x A thing. + * @param __y Another thing. + * @return __x <= __y + * + * This function uses @c < to determine its result. + */ + template + inline bool + operator<=(const _Tp& __x, const _Tp& __y) + { return !(__y < __x); } + + /** + * @brief Defines @c >= for arbitrary types, in terms of @c <. + * @param __x A thing. + * @param __y Another thing. + * @return __x >= __y + * + * This function uses @c < to determine its result. + */ + template + inline bool + operator>=(const _Tp& __x, const _Tp& __y) + { return !(__x < __y); } + } // namespace rel_ops + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_RELOPS_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_set.h b/resources/sources/avr-libstdcpp/include/bits/stl_set.h new file mode 100644 index 000000000..da4266508 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_set.h @@ -0,0 +1,1086 @@ +// Set implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_set.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{set} + */ + +#ifndef _STL_SET_H +#define _STL_SET_H 1 + +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + class multiset; + + /** + * @brief A standard container made up of unique keys, which can be + * retrieved in logarithmic time. + * + * @ingroup associative_containers + * + * @tparam _Key Type of key objects. + * @tparam _Compare Comparison function object type, defaults to less<_Key>. + * @tparam _Alloc Allocator type, defaults to allocator<_Key>. + * + * Meets the requirements of a container, a + * reversible container, and an + * associative container (using unique keys). + * + * Sets support bidirectional iterators. + * + * The private tree data is declared exactly the same way for set and + * multiset; the distinction is made entirely in how the tree functions are + * called (*_unique versus *_equal, same as the standard). + */ + template, + typename _Alloc = std::allocator<_Key> > + class set + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Key, _SGIAssignableConcept) +# endif + __glibcxx_class_requires4(_Compare, bool, _Key, _Key, + _BinaryFunctionConcept) + __glibcxx_class_requires2(_Key, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L + static_assert(is_same::type, _Key>::value, + "std::set must have a non-const, non-volatile value_type"); +# if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::set must have the same value_type as its allocator"); +# endif +#endif + + public: + // typedefs: + //@{ + /// Public typedefs. + typedef _Key key_type; + typedef _Key value_type; + typedef _Compare key_compare; + typedef _Compare value_compare; + typedef _Alloc allocator_type; + //@} + + private: + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Key>::other _Key_alloc_type; + + typedef _Rb_tree, + key_compare, _Key_alloc_type> _Rep_type; + _Rep_type _M_t; // Red-black tree representing set. + + typedef __gnu_cxx::__alloc_traits<_Key_alloc_type> _Alloc_traits; + + public: + //@{ + /// Iterator-related typedefs. + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 103. set::iterator is required to be modifiable, + // but this allows modification of keys. + typedef typename _Rep_type::const_iterator iterator; + typedef typename _Rep_type::const_iterator const_iterator; + typedef typename _Rep_type::const_reverse_iterator reverse_iterator; + typedef typename _Rep_type::const_reverse_iterator const_reverse_iterator; + typedef typename _Rep_type::size_type size_type; + typedef typename _Rep_type::difference_type difference_type; + //@} + +#if __cplusplus > 201402L + using node_type = typename _Rep_type::node_type; + using insert_return_type = typename _Rep_type::insert_return_type; +#endif + + // allocation/deallocation + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + set() : _M_t() { } +#else + set() = default; +#endif + + /** + * @brief Creates a %set with no elements. + * @param __comp Comparator to use. + * @param __a An allocator object. + */ + explicit + set(const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Key_alloc_type(__a)) { } + + /** + * @brief Builds a %set from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * + * Create a %set consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is + * already sorted, and NlogN otherwise (where N is + * distance(__first,__last)). + */ + template + set(_InputIterator __first, _InputIterator __last) + : _M_t() + { _M_t._M_insert_range_unique(__first, __last); } + + /** + * @brief Builds a %set from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %set consisting of copies of the elements from + * [__first,__last). This is linear in N if the range is + * already sorted, and NlogN otherwise (where N is + * distance(__first,__last)). + */ + template + set(_InputIterator __first, _InputIterator __last, + const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Key_alloc_type(__a)) + { _M_t._M_insert_range_unique(__first, __last); } + + /** + * @brief %Set copy constructor. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + set(const set& __x) + : _M_t(__x._M_t) { } +#else + set(const set&) = default; + + /** + * @brief %Set move constructor + * + * The newly-created %set contains the exact contents of the moved + * instance. The moved instance is a valid, but unspecified, %set. + */ + set(set&&) = default; + + /** + * @brief Builds a %set from an initializer_list. + * @param __l An initializer_list. + * @param __comp A comparison functor. + * @param __a An allocator object. + * + * Create a %set consisting of copies of the elements in the list. + * This is linear in N if the list is already sorted, and NlogN + * otherwise (where N is @a __l.size()). + */ + set(initializer_list __l, + const _Compare& __comp = _Compare(), + const allocator_type& __a = allocator_type()) + : _M_t(__comp, _Key_alloc_type(__a)) + { _M_t._M_insert_range_unique(__l.begin(), __l.end()); } + + /// Allocator-extended default constructor. + explicit + set(const allocator_type& __a) + : _M_t(_Key_alloc_type(__a)) { } + + /// Allocator-extended copy constructor. + set(const set& __x, const allocator_type& __a) + : _M_t(__x._M_t, _Key_alloc_type(__a)) { } + + /// Allocator-extended move constructor. + set(set&& __x, const allocator_type& __a) + noexcept(is_nothrow_copy_constructible<_Compare>::value + && _Alloc_traits::_S_always_equal()) + : _M_t(std::move(__x._M_t), _Key_alloc_type(__a)) { } + + /// Allocator-extended initialier-list constructor. + set(initializer_list __l, const allocator_type& __a) + : _M_t(_Key_alloc_type(__a)) + { _M_t._M_insert_range_unique(__l.begin(), __l.end()); } + + /// Allocator-extended range constructor. + template + set(_InputIterator __first, _InputIterator __last, + const allocator_type& __a) + : _M_t(_Key_alloc_type(__a)) + { _M_t._M_insert_range_unique(__first, __last); } + + /** + * The dtor only erases the elements, and note that if the elements + * themselves are pointers, the pointed-to memory is not touched in any + * way. Managing the pointer is the user's responsibility. + */ + ~set() = default; +#endif + + /** + * @brief %Set assignment operator. + * + * Whether the allocator is copied depends on the allocator traits. + */ +#if __cplusplus < 201103L + set& + operator=(const set& __x) + { + _M_t = __x._M_t; + return *this; + } +#else + set& + operator=(const set&) = default; + + /// Move assignment operator. + set& + operator=(set&&) = default; + + /** + * @brief %Set list assignment operator. + * @param __l An initializer_list. + * + * This function fills a %set with copies of the elements in the + * initializer list @a __l. + * + * Note that the assignment completely changes the %set and + * that the resulting %set's size is the same as the number + * of elements assigned. + */ + set& + operator=(initializer_list __l) + { + _M_t._M_assign_unique(__l.begin(), __l.end()); + return *this; + } +#endif + + // accessors: + + /// Returns the comparison object with which the %set was constructed. + key_compare + key_comp() const + { return _M_t.key_comp(); } + /// Returns the comparison object with which the %set was constructed. + value_compare + value_comp() const + { return _M_t.key_comp(); } + /// Returns the allocator object with which the %set was constructed. + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_t.get_allocator()); } + + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %set. Iteration is done in ascending order according + * to the keys. + */ + iterator + begin() const _GLIBCXX_NOEXCEPT + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %set. Iteration is done in ascending order according + * to the keys. + */ + iterator + end() const _GLIBCXX_NOEXCEPT + { return _M_t.end(); } + + /** + * Returns a read-only (constant) iterator that points to the last + * element in the %set. Iteration is done in descending order according + * to the keys. + */ + reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last pair in the %set. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return _M_t.rend(); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %set. Iteration is done in ascending order according + * to the keys. + */ + iterator + cbegin() const noexcept + { return _M_t.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %set. Iteration is done in ascending order according + * to the keys. + */ + iterator + cend() const noexcept + { return _M_t.end(); } + + /** + * Returns a read-only (constant) iterator that points to the last + * element in the %set. Iteration is done in descending order according + * to the keys. + */ + reverse_iterator + crbegin() const noexcept + { return _M_t.rbegin(); } + + /** + * Returns a read-only (constant) reverse iterator that points to the + * last pair in the %set. Iteration is done in descending order + * according to the keys. + */ + reverse_iterator + crend() const noexcept + { return _M_t.rend(); } +#endif + + /// Returns true if the %set is empty. + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return _M_t.empty(); } + + /// Returns the size of the %set. + size_type + size() const _GLIBCXX_NOEXCEPT + { return _M_t.size(); } + + /// Returns the maximum size of the %set. + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _M_t.max_size(); } + + /** + * @brief Swaps data with another %set. + * @param __x A %set of the same element and allocator types. + * + * This exchanges the elements between two sets in constant + * time. (It is only swapping a pointer, an integer, and an + * instance of the @c Compare type (which itself is often + * stateless and empty), so it should be quite fast.) Note + * that the global std::swap() function is specialized such + * that std::swap(s1,s2) will feed to this function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(set& __x) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Compare>::value) + { _M_t.swap(__x._M_t); } + + // insert/erase +#if __cplusplus >= 201103L + /** + * @brief Attempts to build and insert an element into the %set. + * @param __args Arguments used to generate an element. + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted element, and the second is a bool + * that is true if the element was actually inserted. + * + * This function attempts to build and insert an element into the %set. + * A %set relies on unique keys and thus an element is only inserted if + * it is not already present in the %set. + * + * Insertion requires logarithmic time. + */ + template + std::pair + emplace(_Args&&... __args) + { return _M_t._M_emplace_unique(std::forward<_Args>(__args)...); } + + /** + * @brief Attempts to insert an element into the %set. + * @param __pos An iterator that serves as a hint as to where the + * element should be inserted. + * @param __args Arguments used to generate the element to be + * inserted. + * @return An iterator that points to the element with key equivalent to + * the one generated from @a __args (may or may not be the + * element itself). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument emplace() + * does. Note that the first parameter is only a hint and can + * potentially improve the performance of the insertion process. A bad + * hint would cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { + return _M_t._M_emplace_hint_unique(__pos, + std::forward<_Args>(__args)...); + } +#endif + + /** + * @brief Attempts to insert an element into the %set. + * @param __x Element to be inserted. + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted element, and the second is a bool + * that is true if the element was actually inserted. + * + * This function attempts to insert an element into the %set. A %set + * relies on unique keys and thus an element is only inserted if it is + * not already present in the %set. + * + * Insertion requires logarithmic time. + */ + std::pair + insert(const value_type& __x) + { + std::pair __p = + _M_t._M_insert_unique(__x); + return std::pair(__p.first, __p.second); + } + +#if __cplusplus >= 201103L + std::pair + insert(value_type&& __x) + { + std::pair __p = + _M_t._M_insert_unique(std::move(__x)); + return std::pair(__p.first, __p.second); + } +#endif + + /** + * @brief Attempts to insert an element into the %set. + * @param __position An iterator that serves as a hint as to where the + * element should be inserted. + * @param __x Element to be inserted. + * @return An iterator that points to the element with key of + * @a __x (may or may not be the element passed in). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument insert() + * does. Note that the first parameter is only a hint and can + * potentially improve the performance of the insertion process. A bad + * hint would cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + iterator + insert(const_iterator __position, const value_type& __x) + { return _M_t._M_insert_unique_(__position, __x); } + +#if __cplusplus >= 201103L + iterator + insert(const_iterator __position, value_type&& __x) + { return _M_t._M_insert_unique_(__position, std::move(__x)); } +#endif + + /** + * @brief A template function that attempts to insert a range + * of elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_t._M_insert_range_unique(__first, __last); } + +#if __cplusplus >= 201103L + /** + * @brief Attempts to insert a list of elements into the %set. + * @param __l A std::initializer_list of elements + * to be inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { this->insert(__l.begin(), __l.end()); } +#endif + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_t.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __x) + { return _M_t.extract(__x); } + + /// Re-insert an extracted node. + insert_return_type + insert(node_type&& __nh) + { return _M_t._M_reinsert_node_unique(std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator __hint, node_type&& __nh) + { return _M_t._M_reinsert_node_hint_unique(__hint, std::move(__nh)); } + + template + friend class std::_Rb_tree_merge_helper; + + template + void + merge(set<_Key, _Compare1, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_unique(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(set<_Key, _Compare1, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(multiset<_Key, _Compare1, _Alloc>& __source) + { + using _Merge_helper = _Rb_tree_merge_helper; + _M_t._M_merge_unique(_Merge_helper::_S_get_tree(__source)); + } + + template + void + merge(multiset<_Key, _Compare1, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases an element from a %set. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a __position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from a %set. Note that this function only erases the element, and + * that if the element is itself a pointer, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(const_iterator __position) + { return _M_t.erase(__position); } +#else + /** + * @brief Erases an element from a %set. + * @param position An iterator pointing to the element to be erased. + * + * This function erases an element, pointed to by the given iterator, + * from a %set. Note that this function only erases the element, and + * that if the element is itself a pointer, the pointed-to memory is not + * touched in any way. Managing the pointer is the user's + * responsibility. + */ + void + erase(iterator __position) + { _M_t.erase(__position); } +#endif + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all the elements located by the given key from + * a %set. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_t.erase(__x); } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + /** + * @brief Erases a [__first,__last) range of elements from a %set. + * @param __first Iterator pointing to the start of the range to be + * erased. + + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a __last. + * + * This function erases a sequence of elements from a %set. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_t.erase(__first, __last); } +#else + /** + * @brief Erases a [first,last) range of elements from a %set. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * + * This function erases a sequence of elements from a %set. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + void + erase(iterator __first, iterator __last) + { _M_t.erase(__first, __last); } +#endif + + /** + * Erases all elements in a %set. Note that this function only erases + * the elements, and that if the elements themselves are pointers, the + * pointed-to memory is not touched in any way. Managing the pointer is + * the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { _M_t.clear(); } + + // set operations: + + //@{ + /** + * @brief Finds the number of elements. + * @param __x Element to located. + * @return Number of elements with specified key. + * + * This function only makes sense for multisets; for set the result will + * either be 0 (not present) or 1 (present). + */ + size_type + count(const key_type& __x) const + { return _M_t.find(__x) == _M_t.end() ? 0 : 1; } + +#if __cplusplus > 201103L + template + auto + count(const _Kt& __x) const + -> decltype(_M_t._M_count_tr(__x)) + { return _M_t._M_count_tr(__x); } +#endif + //@} + +#if __cplusplus > 201703L + //@{ + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of elements to be located. + * @return True if there is an element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_t.find(__x) != _M_t.end(); } + + template + auto + contains(const _Kt& __x) const + -> decltype(_M_t._M_find_tr(__x), void(), true) + { return _M_t._M_find_tr(__x) != _M_t.end(); } + //@} +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 214. set::find() missing const overload + //@{ + /** + * @brief Tries to locate an element in a %set. + * @param __x Element to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after element. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_t.find(__x); } + + const_iterator + find(const key_type& __x) const + { return _M_t.find(__x); } + +#if __cplusplus > 201103L + template + auto + find(const _Kt& __x) + -> decltype(iterator{_M_t._M_find_tr(__x)}) + { return iterator{_M_t._M_find_tr(__x)}; } + + template + auto + find(const _Kt& __x) const + -> decltype(const_iterator{_M_t._M_find_tr(__x)}) + { return const_iterator{_M_t._M_find_tr(__x)}; } +#endif + //@} + + //@{ + /** + * @brief Finds the beginning of a subsequence matching given key. + * @param __x Key to be located. + * @return Iterator pointing to first element equal to or greater + * than key, or end(). + * + * This function returns the first element of a subsequence of elements + * that matches the given key. If unsuccessful it returns an iterator + * pointing to the first element that has a greater value than given key + * or end() if no such element exists. + */ + iterator + lower_bound(const key_type& __x) + { return _M_t.lower_bound(__x); } + + const_iterator + lower_bound(const key_type& __x) const + { return _M_t.lower_bound(__x); } + +#if __cplusplus > 201103L + template + auto + lower_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_lower_bound_tr(__x))) + { return iterator(_M_t._M_lower_bound_tr(__x)); } + + template + auto + lower_bound(const _Kt& __x) const + -> decltype(const_iterator(_M_t._M_lower_bound_tr(__x))) + { return const_iterator(_M_t._M_lower_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds the end of a subsequence matching given key. + * @param __x Key to be located. + * @return Iterator pointing to the first element + * greater than key, or end(). + */ + iterator + upper_bound(const key_type& __x) + { return _M_t.upper_bound(__x); } + + const_iterator + upper_bound(const key_type& __x) const + { return _M_t.upper_bound(__x); } + +#if __cplusplus > 201103L + template + auto + upper_bound(const _Kt& __x) + -> decltype(iterator(_M_t._M_upper_bound_tr(__x))) + { return iterator(_M_t._M_upper_bound_tr(__x)); } + + template + auto + upper_bound(const _Kt& __x) const + -> decltype(iterator(_M_t._M_upper_bound_tr(__x))) + { return const_iterator(_M_t._M_upper_bound_tr(__x)); } +#endif + //@} + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + * + * This function is equivalent to + * @code + * std::make_pair(c.lower_bound(val), + * c.upper_bound(val)) + * @endcode + * (but is faster than making the calls separately). + * + * This function probably only makes sense for multisets. + */ + std::pair + equal_range(const key_type& __x) + { return _M_t.equal_range(__x); } + + std::pair + equal_range(const key_type& __x) const + { return _M_t.equal_range(__x); } + +#if __cplusplus > 201103L + template + auto + equal_range(const _Kt& __x) + -> decltype(pair(_M_t._M_equal_range_tr(__x))) + { return pair(_M_t._M_equal_range_tr(__x)); } + + template + auto + equal_range(const _Kt& __x) const + -> decltype(pair(_M_t._M_equal_range_tr(__x))) + { return pair(_M_t._M_equal_range_tr(__x)); } +#endif + //@} + + template + friend bool + operator==(const set<_K1, _C1, _A1>&, const set<_K1, _C1, _A1>&); + +#if __cpp_lib_three_way_comparison + template + friend __detail::__synth3way_t<_K1> + operator<=>(const set<_K1, _C1, _A1>&, const set<_K1, _C1, _A1>&); +#else + template + friend bool + operator<(const set<_K1, _C1, _A1>&, const set<_K1, _C1, _A1>&); +#endif + }; + +#if __cpp_deduction_guides >= 201606 + + template::value_type>, + typename _Allocator = + allocator::value_type>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + set(_InputIterator, _InputIterator, + _Compare = _Compare(), _Allocator = _Allocator()) + -> set::value_type, + _Compare, _Allocator>; + + template, + typename _Allocator = allocator<_Key>, + typename = _RequireNotAllocator<_Compare>, + typename = _RequireAllocator<_Allocator>> + set(initializer_list<_Key>, + _Compare = _Compare(), _Allocator = _Allocator()) + -> set<_Key, _Compare, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + set(_InputIterator, _InputIterator, _Allocator) + -> set::value_type, + less::value_type>, + _Allocator>; + + template> + set(initializer_list<_Key>, _Allocator) + -> set<_Key, less<_Key>, _Allocator>; + +#endif // deduction guides + + /** + * @brief Set equality comparison. + * @param __x A %set. + * @param __y A %set of the same type as @a x. + * @return True iff the size and elements of the sets are equal. + * + * This is an equivalence relation. It is linear in the size of the sets. + * Sets are considered equivalent if their sizes are equal, and if + * corresponding elements compare equal. + */ + template + inline bool + operator==(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return __x._M_t == __y._M_t; } + +#if __cpp_lib_three_way_comparison + /** + * @brief Set ordering relation. + * @param __x A `set`. + * @param __y A `set` of the same type as `x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * This is a total ordering relation. It is linear in the size of the + * maps. The elements must be comparable with @c <. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t<_Key> + operator<=>(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return __x._M_t <=> __y._M_t; } +#else + /** + * @brief Set ordering relation. + * @param __x A %set. + * @param __y A %set of the same type as @a x. + * @return True iff @a __x is lexicographically less than @a __y. + * + * This is a total ordering relation. It is linear in the size of the + * sets. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return __x._M_t < __y._M_t; } + + /// Returns !(x == y). + template + inline bool + operator!=(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return !(__x == __y); } + + /// Returns y < x. + template + inline bool + operator>(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return __y < __x; } + + /// Returns !(y < x) + template + inline bool + operator<=(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return !(__y < __x); } + + /// Returns !(x < y) + template + inline bool + operator>=(const set<_Key, _Compare, _Alloc>& __x, + const set<_Key, _Compare, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::set::swap(). + template + inline void + swap(set<_Key, _Compare, _Alloc>& __x, set<_Key, _Compare, _Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus > 201402L + // Allow std::set access to internals of compatible sets. + template + struct + _Rb_tree_merge_helper<_GLIBCXX_STD_C::set<_Val, _Cmp1, _Alloc>, _Cmp2> + { + private: + friend class _GLIBCXX_STD_C::set<_Val, _Cmp1, _Alloc>; + + static auto& + _S_get_tree(_GLIBCXX_STD_C::set<_Val, _Cmp2, _Alloc>& __set) + { return __set._M_t; } + + static auto& + _S_get_tree(_GLIBCXX_STD_C::multiset<_Val, _Cmp2, _Alloc>& __set) + { return __set._M_t; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} //namespace std +#endif /* _STL_SET_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_stack.h b/resources/sources/avr-libstdcpp/include/bits/stl_stack.h new file mode 100644 index 000000000..1ce98a94a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_stack.h @@ -0,0 +1,392 @@ +// Stack implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_stack.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{stack} + */ + +#ifndef _STL_STACK_H +#define _STL_STACK_H 1 + +#include +#include +#if __cplusplus >= 201103L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief A standard container giving FILO behavior. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Sequence Type of underlying sequence, defaults to deque<_Tp>. + * + * Meets many of the requirements of a + * container, + * but does not define anything to do with iterators. Very few of the + * other standard container interfaces are defined. + * + * This is not a true container, but an @e adaptor. It holds + * another container, and provides a wrapper interface to that + * container. The wrapper is what enforces strict + * first-in-last-out %stack behavior. + * + * The second template parameter defines the type of the underlying + * sequence/container. It defaults to std::deque, but it can be + * any type that supports @c back, @c push_back, and @c pop_back, + * such as std::list, std::vector, or an appropriate user-defined + * type. + * + * Members not found in @a normal containers are @c container_type, + * which is a typedef for the second Sequence parameter, and @c + * push, @c pop, and @c top, which are standard %stack/FILO + * operations. + */ + template > + class stack + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // concept requirements + typedef typename _Sequence::value_type _Sequence_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) + __glibcxx_class_requires(_Sequence, _BackInsertionSequenceConcept) +# endif + __glibcxx_class_requires2(_Tp, _Sequence_value_type, _SameTypeConcept) +#endif + + template + friend bool + operator==(const stack<_Tp1, _Seq1>&, const stack<_Tp1, _Seq1>&); + + template + friend bool + operator<(const stack<_Tp1, _Seq1>&, const stack<_Tp1, _Seq1>&); + +#if __cpp_lib_three_way_comparison + template + friend compare_three_way_result_t<_Seq1> + operator<=>(const stack<_Tp1, _Seq1>&, const stack<_Tp1, _Seq1>&); +#endif + +#if __cplusplus >= 201103L + template + using _Uses = typename + enable_if::value>::type; + +#if __cplusplus >= 201703L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2566. Requirements on the first template parameter of container + // adaptors + static_assert(is_same<_Tp, typename _Sequence::value_type>::value, + "value_type must be the same as the underlying container"); +#endif // C++17 +#endif // C++11 + + public: + typedef typename _Sequence::value_type value_type; + typedef typename _Sequence::reference reference; + typedef typename _Sequence::const_reference const_reference; + typedef typename _Sequence::size_type size_type; + typedef _Sequence container_type; + + protected: + // See queue::c for notes on this name. + _Sequence c; + + public: + // XXX removed old def ctor, added def arg to this one to match 14882 + /** + * @brief Default constructor creates no elements. + */ +#if __cplusplus < 201103L + explicit + stack(const _Sequence& __c = _Sequence()) + : c(__c) { } +#else + template::value>::type> + stack() + : c() { } + + explicit + stack(const _Sequence& __c) + : c(__c) { } + + explicit + stack(_Sequence&& __c) + : c(std::move(__c)) { } + + template> + explicit + stack(const _Alloc& __a) + : c(__a) { } + + template> + stack(const _Sequence& __c, const _Alloc& __a) + : c(__c, __a) { } + + template> + stack(_Sequence&& __c, const _Alloc& __a) + : c(std::move(__c), __a) { } + + template> + stack(const stack& __q, const _Alloc& __a) + : c(__q.c, __a) { } + + template> + stack(stack&& __q, const _Alloc& __a) + : c(std::move(__q.c), __a) { } +#endif + + /** + * Returns true if the %stack is empty. + */ + _GLIBCXX_NODISCARD bool + empty() const + { return c.empty(); } + + /** Returns the number of elements in the %stack. */ + size_type + size() const + { return c.size(); } + + /** + * Returns a read/write reference to the data at the first + * element of the %stack. + */ + reference + top() + { + __glibcxx_requires_nonempty(); + return c.back(); + } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %stack. + */ + const_reference + top() const + { + __glibcxx_requires_nonempty(); + return c.back(); + } + + /** + * @brief Add data to the top of the %stack. + * @param __x Data to be added. + * + * This is a typical %stack operation. The function creates an + * element at the top of the %stack and assigns the given data + * to it. The time complexity of the operation depends on the + * underlying sequence. + */ + void + push(const value_type& __x) + { c.push_back(__x); } + +#if __cplusplus >= 201103L + void + push(value_type&& __x) + { c.push_back(std::move(__x)); } + +#if __cplusplus > 201402L + template + decltype(auto) + emplace(_Args&&... __args) + { return c.emplace_back(std::forward<_Args>(__args)...); } +#else + template + void + emplace(_Args&&... __args) + { c.emplace_back(std::forward<_Args>(__args)...); } +#endif +#endif + + /** + * @brief Removes first element. + * + * This is a typical %stack operation. It shrinks the %stack + * by one. The time complexity of the operation depends on the + * underlying sequence. + * + * Note that no data is returned, and if the first element's + * data is needed, it should be retrieved before pop() is + * called. + */ + void + pop() + { + __glibcxx_requires_nonempty(); + c.pop_back(); + } + +#if __cplusplus >= 201103L + void + swap(stack& __s) +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + noexcept(__is_nothrow_swappable<_Sequence>::value) +#else + noexcept(__is_nothrow_swappable<_Tp>::value) +#endif + { + using std::swap; + swap(c, __s.c); + } +#endif // __cplusplus >= 201103L + }; + +#if __cpp_deduction_guides >= 201606 + template> + stack(_Container) -> stack; + + template, + typename = _RequireAllocator<_Allocator>> + stack(_Container, _Allocator) + -> stack; +#endif + + /** + * @brief Stack equality comparison. + * @param __x A %stack. + * @param __y A %stack of the same type as @a __x. + * @return True iff the size and elements of the stacks are equal. + * + * This is an equivalence relation. Complexity and semantics + * depend on the underlying sequence type, but the expected rules + * are: this relation is linear in the size of the sequences, and + * stacks are considered equivalent if their sequences compare + * equal. + */ + template + inline bool + operator==(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return __x.c == __y.c; } + + /** + * @brief Stack ordering relation. + * @param __x A %stack. + * @param __y A %stack of the same type as @a x. + * @return True iff @a x is lexicographically less than @a __y. + * + * This is an total ordering relation. Complexity and semantics + * depend on the underlying sequence type, but the expected rules + * are: this relation is linear in the size of the sequences, the + * elements must be comparable with @c <, and + * std::lexicographical_compare() is usually used to make the + * determination. + */ + template + inline bool + operator<(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return __x.c < __y.c; } + + /// Based on operator== + template + inline bool + operator!=(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return !(__x < __y); } + +#if __cpp_lib_three_way_comparison + template + inline compare_three_way_result_t<_Seq> + operator<=>(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y) + { return __x.c <=> __y.c; } +#endif + +#if __cplusplus >= 201103L + template + inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if<__is_swappable<_Seq>::value>::type +#else + void +#endif + swap(stack<_Tp, _Seq>& __x, stack<_Tp, _Seq>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + struct uses_allocator, _Alloc> + : public uses_allocator<_Seq, _Alloc>::type { }; +#endif // __cplusplus >= 201103L + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_STACK_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_tempbuf.h b/resources/sources/avr-libstdcpp/include/bits/stl_tempbuf.h new file mode 100644 index 000000000..f6f179604 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_tempbuf.h @@ -0,0 +1,284 @@ +// Temporary buffer implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_tempbuf.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _STL_TEMPBUF_H +#define _STL_TEMPBUF_H 1 + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + namespace __detail + { + template + inline void + __return_temporary_buffer(_Tp* __p, + size_t __len __attribute__((__unused__))) + { +#if __cpp_sized_deallocation + ::operator delete(__p, __len * sizeof(_Tp)); +#else + ::operator delete(__p); +#endif + } + } + + /** + * @brief Allocates a temporary buffer. + * @param __len The number of objects of type Tp. + * @return See full description. + * + * Reinventing the wheel, but this time with prettier spokes! + * + * This function tries to obtain storage for @c __len adjacent Tp + * objects. The objects themselves are not constructed, of course. + * A pair<> is returned containing the buffer s address and + * capacity (in the units of sizeof(_Tp)), or a pair of 0 values if + * no storage can be obtained. Note that the capacity obtained + * may be less than that requested if the memory is unavailable; + * you should compare len with the .second return value. + * + * Provides the nothrow exception guarantee. + */ + template + pair<_Tp*, ptrdiff_t> + get_temporary_buffer(ptrdiff_t __len) _GLIBCXX_NOEXCEPT + { + const ptrdiff_t __max = + __gnu_cxx::__numeric_traits::__max / sizeof(_Tp); + if (__len > __max) + __len = __max; + + while (__len > 0) + { + _Tp* __tmp = static_cast<_Tp*>(::operator new(__len * sizeof(_Tp), + std::nothrow)); + if (__tmp != 0) + return std::pair<_Tp*, ptrdiff_t>(__tmp, __len); + __len /= 2; + } + return std::pair<_Tp*, ptrdiff_t>(static_cast<_Tp*>(0), 0); + } + + /** + * @brief The companion to get_temporary_buffer(). + * @param __p A buffer previously allocated by get_temporary_buffer. + * @return None. + * + * Frees the memory pointed to by __p. + */ + template + inline void + return_temporary_buffer(_Tp* __p) + { ::operator delete(__p); } + + /** + * This class is used in two places: stl_algo.h and ext/memory, + * where it is wrapped as the temporary_buffer class. See + * temporary_buffer docs for more notes. + */ + template + class _Temporary_buffer + { + // concept requirements + __glibcxx_class_requires(_ForwardIterator, _ForwardIteratorConcept) + + public: + typedef _Tp value_type; + typedef value_type* pointer; + typedef pointer iterator; + typedef ptrdiff_t size_type; + + protected: + size_type _M_original_len; + size_type _M_len; + pointer _M_buffer; + + public: + /// As per Table mumble. + size_type + size() const + { return _M_len; } + + /// Returns the size requested by the constructor; may be >size(). + size_type + requested_size() const + { return _M_original_len; } + + /// As per Table mumble. + iterator + begin() + { return _M_buffer; } + + /// As per Table mumble. + iterator + end() + { return _M_buffer + _M_len; } + + /** + * Constructs a temporary buffer of a size somewhere between + * zero and the given length. + */ + _Temporary_buffer(_ForwardIterator __seed, size_type __original_len); + + ~_Temporary_buffer() + { + std::_Destroy(_M_buffer, _M_buffer + _M_len); + std::__detail::__return_temporary_buffer(_M_buffer, _M_len); + } + + private: + // Disable copy constructor and assignment operator. + _Temporary_buffer(const _Temporary_buffer&); + + void + operator=(const _Temporary_buffer&); + }; + + + template + struct __uninitialized_construct_buf_dispatch + { + template + static void + __ucr(_Pointer __first, _Pointer __last, + _ForwardIterator __seed) + { + if (__first == __last) + return; + + _Pointer __cur = __first; + __try + { + std::_Construct(std::__addressof(*__first), + _GLIBCXX_MOVE(*__seed)); + _Pointer __prev = __cur; + ++__cur; + for(; __cur != __last; ++__cur, ++__prev) + std::_Construct(std::__addressof(*__cur), + _GLIBCXX_MOVE(*__prev)); + *__seed = _GLIBCXX_MOVE(*__prev); + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_construct_buf_dispatch + { + template + static void + __ucr(_Pointer, _Pointer, _ForwardIterator) { } + }; + + // Constructs objects in the range [first, last). + // Note that while these new objects will take valid values, + // their exact value is not defined. In particular they may + // be 'moved from'. + // + // While *__seed may be altered during this algorithm, it will have + // the same value when the algorithm finishes, unless one of the + // constructions throws. + // + // Requirements: _Pointer::value_type(_Tp&&) is valid. + template + inline void + __uninitialized_construct_buf(_Pointer __first, _Pointer __last, + _ForwardIterator __seed) + { + typedef typename std::iterator_traits<_Pointer>::value_type + _ValueType; + + std::__uninitialized_construct_buf_dispatch< + __has_trivial_constructor(_ValueType)>:: + __ucr(__first, __last, __seed); + } + + template + _Temporary_buffer<_ForwardIterator, _Tp>:: + _Temporary_buffer(_ForwardIterator __seed, size_type __original_len) + : _M_original_len(__original_len), _M_len(0), _M_buffer(0) + { + std::pair __p( + std::get_temporary_buffer(_M_original_len)); + + if (__p.first) + { + __try + { + std::__uninitialized_construct_buf(__p.first, __p.first + __p.second, + __seed); + _M_buffer = __p.first; + _M_len = __p.second; + } + __catch(...) + { + std::__detail::__return_temporary_buffer(__p.first, __p.second); + __throw_exception_again; + } + } + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_TEMPBUF_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_tree.h b/resources/sources/avr-libstdcpp/include/bits/stl_tree.h new file mode 100644 index 000000000..5be15afa2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_tree.h @@ -0,0 +1,2644 @@ +// RB tree implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + */ + +/** @file bits/stl_tree.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{map,set} + */ + +#ifndef _STL_TREE_H +#define _STL_TREE_H 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include +#if __cplusplus >= 201103L +# include +#endif +#if __cplusplus > 201402L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus > 201103L +# define __cpp_lib_generic_associative_lookup 201304 +#endif + + // Red-black tree class, designed for use in implementing STL + // associative containers (set, multiset, map, and multimap). The + // insertion and deletion algorithms are based on those in Cormen, + // Leiserson, and Rivest, Introduction to Algorithms (MIT Press, + // 1990), except that + // + // (1) the header cell is maintained with links not only to the root + // but also to the leftmost node of the tree, to enable constant + // time begin(), and to the rightmost node of the tree, to enable + // linear time performance when used with the generic set algorithms + // (set_union, etc.) + // + // (2) when a node being deleted has two children its successor node + // is relinked into its place, rather than copied, so that the only + // iterators invalidated are those referring to the deleted node. + + enum _Rb_tree_color { _S_red = false, _S_black = true }; + + struct _Rb_tree_node_base + { + typedef _Rb_tree_node_base* _Base_ptr; + typedef const _Rb_tree_node_base* _Const_Base_ptr; + + _Rb_tree_color _M_color; + _Base_ptr _M_parent; + _Base_ptr _M_left; + _Base_ptr _M_right; + + static _Base_ptr + _S_minimum(_Base_ptr __x) _GLIBCXX_NOEXCEPT + { + while (__x->_M_left != 0) __x = __x->_M_left; + return __x; + } + + static _Const_Base_ptr + _S_minimum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT + { + while (__x->_M_left != 0) __x = __x->_M_left; + return __x; + } + + static _Base_ptr + _S_maximum(_Base_ptr __x) _GLIBCXX_NOEXCEPT + { + while (__x->_M_right != 0) __x = __x->_M_right; + return __x; + } + + static _Const_Base_ptr + _S_maximum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT + { + while (__x->_M_right != 0) __x = __x->_M_right; + return __x; + } + }; + + // Helper type offering value initialization guarantee on the compare functor. + template + struct _Rb_tree_key_compare + { + _Key_compare _M_key_compare; + + _Rb_tree_key_compare() + _GLIBCXX_NOEXCEPT_IF( + is_nothrow_default_constructible<_Key_compare>::value) + : _M_key_compare() + { } + + _Rb_tree_key_compare(const _Key_compare& __comp) + : _M_key_compare(__comp) + { } + +#if __cplusplus >= 201103L + // Copy constructor added for consistency with C++98 mode. + _Rb_tree_key_compare(const _Rb_tree_key_compare&) = default; + + _Rb_tree_key_compare(_Rb_tree_key_compare&& __x) + noexcept(is_nothrow_copy_constructible<_Key_compare>::value) + : _M_key_compare(__x._M_key_compare) + { } +#endif + }; + + // Helper type to manage default initialization of node count and header. + struct _Rb_tree_header + { + _Rb_tree_node_base _M_header; + size_t _M_node_count; // Keeps track of size of tree. + + _Rb_tree_header() _GLIBCXX_NOEXCEPT + { + _M_header._M_color = _S_red; + _M_reset(); + } + +#if __cplusplus >= 201103L + _Rb_tree_header(_Rb_tree_header&& __x) noexcept + { + if (__x._M_header._M_parent != nullptr) + _M_move_data(__x); + else + { + _M_header._M_color = _S_red; + _M_reset(); + } + } +#endif + + void + _M_move_data(_Rb_tree_header& __from) + { + _M_header._M_color = __from._M_header._M_color; + _M_header._M_parent = __from._M_header._M_parent; + _M_header._M_left = __from._M_header._M_left; + _M_header._M_right = __from._M_header._M_right; + _M_header._M_parent->_M_parent = &_M_header; + _M_node_count = __from._M_node_count; + + __from._M_reset(); + } + + void + _M_reset() + { + _M_header._M_parent = 0; + _M_header._M_left = &_M_header; + _M_header._M_right = &_M_header; + _M_node_count = 0; + } + }; + + template + struct _Rb_tree_node : public _Rb_tree_node_base + { + typedef _Rb_tree_node<_Val>* _Link_type; + +#if __cplusplus < 201103L + _Val _M_value_field; + + _Val* + _M_valptr() + { return std::__addressof(_M_value_field); } + + const _Val* + _M_valptr() const + { return std::__addressof(_M_value_field); } +#else + __gnu_cxx::__aligned_membuf<_Val> _M_storage; + + _Val* + _M_valptr() + { return _M_storage._M_ptr(); } + + const _Val* + _M_valptr() const + { return _M_storage._M_ptr(); } +#endif + }; + + _GLIBCXX_PURE _Rb_tree_node_base* + _Rb_tree_increment(_Rb_tree_node_base* __x) throw (); + + _GLIBCXX_PURE const _Rb_tree_node_base* + _Rb_tree_increment(const _Rb_tree_node_base* __x) throw (); + + _GLIBCXX_PURE _Rb_tree_node_base* + _Rb_tree_decrement(_Rb_tree_node_base* __x) throw (); + + _GLIBCXX_PURE const _Rb_tree_node_base* + _Rb_tree_decrement(const _Rb_tree_node_base* __x) throw (); + + template + struct _Rb_tree_iterator + { + typedef _Tp value_type; + typedef _Tp& reference; + typedef _Tp* pointer; + + typedef bidirectional_iterator_tag iterator_category; + typedef ptrdiff_t difference_type; + + typedef _Rb_tree_iterator<_Tp> _Self; + typedef _Rb_tree_node_base::_Base_ptr _Base_ptr; + typedef _Rb_tree_node<_Tp>* _Link_type; + + _Rb_tree_iterator() _GLIBCXX_NOEXCEPT + : _M_node() { } + + explicit + _Rb_tree_iterator(_Base_ptr __x) _GLIBCXX_NOEXCEPT + : _M_node(__x) { } + + reference + operator*() const _GLIBCXX_NOEXCEPT + { return *static_cast<_Link_type>(_M_node)->_M_valptr(); } + + pointer + operator->() const _GLIBCXX_NOEXCEPT + { return static_cast<_Link_type> (_M_node)->_M_valptr(); } + + _Self& + operator++() _GLIBCXX_NOEXCEPT + { + _M_node = _Rb_tree_increment(_M_node); + return *this; + } + + _Self + operator++(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _Rb_tree_increment(_M_node); + return __tmp; + } + + _Self& + operator--() _GLIBCXX_NOEXCEPT + { + _M_node = _Rb_tree_decrement(_M_node); + return *this; + } + + _Self + operator--(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _Rb_tree_decrement(_M_node); + return __tmp; + } + + friend bool + operator==(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node == __y._M_node; } + +#if ! __cpp_lib_three_way_comparison + friend bool + operator!=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node != __y._M_node; } +#endif + + _Base_ptr _M_node; + }; + + template + struct _Rb_tree_const_iterator + { + typedef _Tp value_type; + typedef const _Tp& reference; + typedef const _Tp* pointer; + + typedef _Rb_tree_iterator<_Tp> iterator; + + typedef bidirectional_iterator_tag iterator_category; + typedef ptrdiff_t difference_type; + + typedef _Rb_tree_const_iterator<_Tp> _Self; + typedef _Rb_tree_node_base::_Const_Base_ptr _Base_ptr; + typedef const _Rb_tree_node<_Tp>* _Link_type; + + _Rb_tree_const_iterator() _GLIBCXX_NOEXCEPT + : _M_node() { } + + explicit + _Rb_tree_const_iterator(_Base_ptr __x) _GLIBCXX_NOEXCEPT + : _M_node(__x) { } + + _Rb_tree_const_iterator(const iterator& __it) _GLIBCXX_NOEXCEPT + : _M_node(__it._M_node) { } + + iterator + _M_const_cast() const _GLIBCXX_NOEXCEPT + { return iterator(const_cast(_M_node)); } + + reference + operator*() const _GLIBCXX_NOEXCEPT + { return *static_cast<_Link_type>(_M_node)->_M_valptr(); } + + pointer + operator->() const _GLIBCXX_NOEXCEPT + { return static_cast<_Link_type>(_M_node)->_M_valptr(); } + + _Self& + operator++() _GLIBCXX_NOEXCEPT + { + _M_node = _Rb_tree_increment(_M_node); + return *this; + } + + _Self + operator++(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _Rb_tree_increment(_M_node); + return __tmp; + } + + _Self& + operator--() _GLIBCXX_NOEXCEPT + { + _M_node = _Rb_tree_decrement(_M_node); + return *this; + } + + _Self + operator--(int) _GLIBCXX_NOEXCEPT + { + _Self __tmp = *this; + _M_node = _Rb_tree_decrement(_M_node); + return __tmp; + } + + friend bool + operator==(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node == __y._M_node; } + +#if ! __cpp_lib_three_way_comparison + friend bool + operator!=(const _Self& __x, const _Self& __y) _GLIBCXX_NOEXCEPT + { return __x._M_node != __y._M_node; } +#endif + + _Base_ptr _M_node; + }; + + void + _Rb_tree_insert_and_rebalance(const bool __insert_left, + _Rb_tree_node_base* __x, + _Rb_tree_node_base* __p, + _Rb_tree_node_base& __header) throw (); + + _Rb_tree_node_base* + _Rb_tree_rebalance_for_erase(_Rb_tree_node_base* const __z, + _Rb_tree_node_base& __header) throw (); + +#if __cplusplus >= 201402L + template> + struct __has_is_transparent + { }; + + template + struct __has_is_transparent<_Cmp, _SfinaeType, + __void_t> + { typedef void type; }; + + template + using __has_is_transparent_t + = typename __has_is_transparent<_Cmp, _SfinaeType>::type; +#endif + +#if __cplusplus > 201402L + template + struct _Rb_tree_merge_helper { }; +#endif + + template > + class _Rb_tree + { + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Rb_tree_node<_Val> >::other _Node_allocator; + + typedef __gnu_cxx::__alloc_traits<_Node_allocator> _Alloc_traits; + + protected: + typedef _Rb_tree_node_base* _Base_ptr; + typedef const _Rb_tree_node_base* _Const_Base_ptr; + typedef _Rb_tree_node<_Val>* _Link_type; + typedef const _Rb_tree_node<_Val>* _Const_Link_type; + + private: + // Functor recycling a pool of nodes and using allocation once the pool + // is empty. + struct _Reuse_or_alloc_node + { + _Reuse_or_alloc_node(_Rb_tree& __t) + : _M_root(__t._M_root()), _M_nodes(__t._M_rightmost()), _M_t(__t) + { + if (_M_root) + { + _M_root->_M_parent = 0; + + if (_M_nodes->_M_left) + _M_nodes = _M_nodes->_M_left; + } + else + _M_nodes = 0; + } + +#if __cplusplus >= 201103L + _Reuse_or_alloc_node(const _Reuse_or_alloc_node&) = delete; +#endif + + ~_Reuse_or_alloc_node() + { _M_t._M_erase(static_cast<_Link_type>(_M_root)); } + + template + _Link_type +#if __cplusplus < 201103L + operator()(const _Arg& __arg) +#else + operator()(_Arg&& __arg) +#endif + { + _Link_type __node = static_cast<_Link_type>(_M_extract()); + if (__node) + { + _M_t._M_destroy_node(__node); + _M_t._M_construct_node(__node, _GLIBCXX_FORWARD(_Arg, __arg)); + return __node; + } + + return _M_t._M_create_node(_GLIBCXX_FORWARD(_Arg, __arg)); + } + + private: + _Base_ptr + _M_extract() + { + if (!_M_nodes) + return _M_nodes; + + _Base_ptr __node = _M_nodes; + _M_nodes = _M_nodes->_M_parent; + if (_M_nodes) + { + if (_M_nodes->_M_right == __node) + { + _M_nodes->_M_right = 0; + + if (_M_nodes->_M_left) + { + _M_nodes = _M_nodes->_M_left; + + while (_M_nodes->_M_right) + _M_nodes = _M_nodes->_M_right; + + if (_M_nodes->_M_left) + _M_nodes = _M_nodes->_M_left; + } + } + else // __node is on the left. + _M_nodes->_M_left = 0; + } + else + _M_root = 0; + + return __node; + } + + _Base_ptr _M_root; + _Base_ptr _M_nodes; + _Rb_tree& _M_t; + }; + + // Functor similar to the previous one but without any pool of nodes to + // recycle. + struct _Alloc_node + { + _Alloc_node(_Rb_tree& __t) + : _M_t(__t) { } + + template + _Link_type +#if __cplusplus < 201103L + operator()(const _Arg& __arg) const +#else + operator()(_Arg&& __arg) const +#endif + { return _M_t._M_create_node(_GLIBCXX_FORWARD(_Arg, __arg)); } + + private: + _Rb_tree& _M_t; + }; + + public: + typedef _Key key_type; + typedef _Val value_type; + typedef value_type* pointer; + typedef const value_type* const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Alloc allocator_type; + + _Node_allocator& + _M_get_Node_allocator() _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + const _Node_allocator& + _M_get_Node_allocator() const _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_get_Node_allocator()); } + + protected: + _Link_type + _M_get_node() + { return _Alloc_traits::allocate(_M_get_Node_allocator(), 1); } + + void + _M_put_node(_Link_type __p) _GLIBCXX_NOEXCEPT + { _Alloc_traits::deallocate(_M_get_Node_allocator(), __p, 1); } + +#if __cplusplus < 201103L + void + _M_construct_node(_Link_type __node, const value_type& __x) + { + __try + { get_allocator().construct(__node->_M_valptr(), __x); } + __catch(...) + { + _M_put_node(__node); + __throw_exception_again; + } + } + + _Link_type + _M_create_node(const value_type& __x) + { + _Link_type __tmp = _M_get_node(); + _M_construct_node(__tmp, __x); + return __tmp; + } +#else + template + void + _M_construct_node(_Link_type __node, _Args&&... __args) + { + __try + { + ::new(__node) _Rb_tree_node<_Val>; + _Alloc_traits::construct(_M_get_Node_allocator(), + __node->_M_valptr(), + std::forward<_Args>(__args)...); + } + __catch(...) + { + __node->~_Rb_tree_node<_Val>(); + _M_put_node(__node); + __throw_exception_again; + } + } + + template + _Link_type + _M_create_node(_Args&&... __args) + { + _Link_type __tmp = _M_get_node(); + _M_construct_node(__tmp, std::forward<_Args>(__args)...); + return __tmp; + } +#endif + + void + _M_destroy_node(_Link_type __p) _GLIBCXX_NOEXCEPT + { +#if __cplusplus < 201103L + get_allocator().destroy(__p->_M_valptr()); +#else + _Alloc_traits::destroy(_M_get_Node_allocator(), __p->_M_valptr()); + __p->~_Rb_tree_node<_Val>(); +#endif + } + + void + _M_drop_node(_Link_type __p) _GLIBCXX_NOEXCEPT + { + _M_destroy_node(__p); + _M_put_node(__p); + } + + template + _Link_type + _M_clone_node(_Const_Link_type __x, _NodeGen& __node_gen) + { + _Link_type __tmp = __node_gen(*__x->_M_valptr()); + __tmp->_M_color = __x->_M_color; + __tmp->_M_left = 0; + __tmp->_M_right = 0; + return __tmp; + } + + protected: +#if _GLIBCXX_INLINE_VERSION + template +#else + // Unused _Is_pod_comparator is kept as it is part of mangled name. + template +#endif + struct _Rb_tree_impl + : public _Node_allocator + , public _Rb_tree_key_compare<_Key_compare> + , public _Rb_tree_header + { + typedef _Rb_tree_key_compare<_Key_compare> _Base_key_compare; + + _Rb_tree_impl() + _GLIBCXX_NOEXCEPT_IF( + is_nothrow_default_constructible<_Node_allocator>::value + && is_nothrow_default_constructible<_Base_key_compare>::value ) + : _Node_allocator() + { } + + _Rb_tree_impl(const _Rb_tree_impl& __x) + : _Node_allocator(_Alloc_traits::_S_select_on_copy(__x)) + , _Base_key_compare(__x._M_key_compare) + { } + +#if __cplusplus < 201103L + _Rb_tree_impl(const _Key_compare& __comp, const _Node_allocator& __a) + : _Node_allocator(__a), _Base_key_compare(__comp) + { } +#else + _Rb_tree_impl(_Rb_tree_impl&&) = default; + + explicit + _Rb_tree_impl(_Node_allocator&& __a) + : _Node_allocator(std::move(__a)) + { } + + _Rb_tree_impl(_Rb_tree_impl&& __x, _Node_allocator&& __a) + : _Node_allocator(std::move(__a)), + _Base_key_compare(std::move(__x)), + _Rb_tree_header(std::move(__x)) + { } + + _Rb_tree_impl(const _Key_compare& __comp, _Node_allocator&& __a) + : _Node_allocator(std::move(__a)), _Base_key_compare(__comp) + { } +#endif + }; + + _Rb_tree_impl<_Compare> _M_impl; + + protected: + _Base_ptr& + _M_root() _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_header._M_parent; } + + _Const_Base_ptr + _M_root() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_header._M_parent; } + + _Base_ptr& + _M_leftmost() _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_header._M_left; } + + _Const_Base_ptr + _M_leftmost() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_header._M_left; } + + _Base_ptr& + _M_rightmost() _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_header._M_right; } + + _Const_Base_ptr + _M_rightmost() const _GLIBCXX_NOEXCEPT + { return this->_M_impl._M_header._M_right; } + + _Link_type + _M_begin() _GLIBCXX_NOEXCEPT + { return static_cast<_Link_type>(this->_M_impl._M_header._M_parent); } + + _Const_Link_type + _M_begin() const _GLIBCXX_NOEXCEPT + { + return static_cast<_Const_Link_type> + (this->_M_impl._M_header._M_parent); + } + + _Base_ptr + _M_end() _GLIBCXX_NOEXCEPT + { return &this->_M_impl._M_header; } + + _Const_Base_ptr + _M_end() const _GLIBCXX_NOEXCEPT + { return &this->_M_impl._M_header; } + + static const _Key& + _S_key(_Const_Link_type __x) + { +#if __cplusplus >= 201103L + // If we're asking for the key we're presumably using the comparison + // object, and so this is a good place to sanity check it. + static_assert(__is_invocable<_Compare&, const _Key&, const _Key&>{}, + "comparison object must be invocable " + "with two arguments of key type"); +# if __cplusplus >= 201703L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2542. Missing const requirements for associative containers + if constexpr (__is_invocable<_Compare&, const _Key&, const _Key&>{}) + static_assert( + is_invocable_v, + "comparison object must be invocable as const"); +# endif // C++17 +#endif // C++11 + + return _KeyOfValue()(*__x->_M_valptr()); + } + + static _Link_type + _S_left(_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return static_cast<_Link_type>(__x->_M_left); } + + static _Const_Link_type + _S_left(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return static_cast<_Const_Link_type>(__x->_M_left); } + + static _Link_type + _S_right(_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return static_cast<_Link_type>(__x->_M_right); } + + static _Const_Link_type + _S_right(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return static_cast<_Const_Link_type>(__x->_M_right); } + + static const _Key& + _S_key(_Const_Base_ptr __x) + { return _S_key(static_cast<_Const_Link_type>(__x)); } + + static _Base_ptr + _S_minimum(_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return _Rb_tree_node_base::_S_minimum(__x); } + + static _Const_Base_ptr + _S_minimum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return _Rb_tree_node_base::_S_minimum(__x); } + + static _Base_ptr + _S_maximum(_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return _Rb_tree_node_base::_S_maximum(__x); } + + static _Const_Base_ptr + _S_maximum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT + { return _Rb_tree_node_base::_S_maximum(__x); } + + public: + typedef _Rb_tree_iterator iterator; + typedef _Rb_tree_const_iterator const_iterator; + + typedef std::reverse_iterator reverse_iterator; + typedef std::reverse_iterator const_reverse_iterator; + +#if __cplusplus > 201402L + using node_type = _Node_handle<_Key, _Val, _Node_allocator>; + using insert_return_type = _Node_insert_return< + conditional_t, const_iterator, iterator>, + node_type>; +#endif + + pair<_Base_ptr, _Base_ptr> + _M_get_insert_unique_pos(const key_type& __k); + + pair<_Base_ptr, _Base_ptr> + _M_get_insert_equal_pos(const key_type& __k); + + pair<_Base_ptr, _Base_ptr> + _M_get_insert_hint_unique_pos(const_iterator __pos, + const key_type& __k); + + pair<_Base_ptr, _Base_ptr> + _M_get_insert_hint_equal_pos(const_iterator __pos, + const key_type& __k); + + private: +#if __cplusplus >= 201103L + template + iterator + _M_insert_(_Base_ptr __x, _Base_ptr __y, _Arg&& __v, _NodeGen&); + + iterator + _M_insert_node(_Base_ptr __x, _Base_ptr __y, _Link_type __z); + + template + iterator + _M_insert_lower(_Base_ptr __y, _Arg&& __v); + + template + iterator + _M_insert_equal_lower(_Arg&& __x); + + iterator + _M_insert_lower_node(_Base_ptr __p, _Link_type __z); + + iterator + _M_insert_equal_lower_node(_Link_type __z); +#else + template + iterator + _M_insert_(_Base_ptr __x, _Base_ptr __y, + const value_type& __v, _NodeGen&); + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 233. Insertion hints in associative containers. + iterator + _M_insert_lower(_Base_ptr __y, const value_type& __v); + + iterator + _M_insert_equal_lower(const value_type& __x); +#endif + + template + _Link_type + _M_copy(_Const_Link_type __x, _Base_ptr __p, _NodeGen&); + + template + _Link_type + _M_copy(const _Rb_tree& __x, _NodeGen& __gen) + { + _Link_type __root = _M_copy(__x._M_begin(), _M_end(), __gen); + _M_leftmost() = _S_minimum(__root); + _M_rightmost() = _S_maximum(__root); + _M_impl._M_node_count = __x._M_impl._M_node_count; + return __root; + } + + _Link_type + _M_copy(const _Rb_tree& __x) + { + _Alloc_node __an(*this); + return _M_copy(__x, __an); + } + + void + _M_erase(_Link_type __x); + + iterator + _M_lower_bound(_Link_type __x, _Base_ptr __y, + const _Key& __k); + + const_iterator + _M_lower_bound(_Const_Link_type __x, _Const_Base_ptr __y, + const _Key& __k) const; + + iterator + _M_upper_bound(_Link_type __x, _Base_ptr __y, + const _Key& __k); + + const_iterator + _M_upper_bound(_Const_Link_type __x, _Const_Base_ptr __y, + const _Key& __k) const; + + public: + // allocation/deallocation +#if __cplusplus < 201103L + _Rb_tree() { } +#else + _Rb_tree() = default; +#endif + + _Rb_tree(const _Compare& __comp, + const allocator_type& __a = allocator_type()) + : _M_impl(__comp, _Node_allocator(__a)) { } + + _Rb_tree(const _Rb_tree& __x) + : _M_impl(__x._M_impl) + { + if (__x._M_root() != 0) + _M_root() = _M_copy(__x); + } + +#if __cplusplus >= 201103L + _Rb_tree(const allocator_type& __a) + : _M_impl(_Node_allocator(__a)) + { } + + _Rb_tree(const _Rb_tree& __x, const allocator_type& __a) + : _M_impl(__x._M_impl._M_key_compare, _Node_allocator(__a)) + { + if (__x._M_root() != nullptr) + _M_root() = _M_copy(__x); + } + + _Rb_tree(_Rb_tree&&) = default; + + _Rb_tree(_Rb_tree&& __x, const allocator_type& __a) + : _Rb_tree(std::move(__x), _Node_allocator(__a)) + { } + + private: + _Rb_tree(_Rb_tree&& __x, _Node_allocator&& __a, true_type) + noexcept(is_nothrow_default_constructible<_Compare>::value) + : _M_impl(std::move(__x._M_impl), std::move(__a)) + { } + + _Rb_tree(_Rb_tree&& __x, _Node_allocator&& __a, false_type) + : _M_impl(__x._M_impl._M_key_compare, std::move(__a)) + { + if (__x._M_root() != nullptr) + _M_move_data(__x, false_type{}); + } + + public: + _Rb_tree(_Rb_tree&& __x, _Node_allocator&& __a) + noexcept( noexcept( + _Rb_tree(std::declval<_Rb_tree&&>(), std::declval<_Node_allocator&&>(), + std::declval())) ) + : _Rb_tree(std::move(__x), std::move(__a), + typename _Alloc_traits::is_always_equal{}) + { } +#endif + + ~_Rb_tree() _GLIBCXX_NOEXCEPT + { _M_erase(_M_begin()); } + + _Rb_tree& + operator=(const _Rb_tree& __x); + + // Accessors. + _Compare + key_comp() const + { return _M_impl._M_key_compare; } + + iterator + begin() _GLIBCXX_NOEXCEPT + { return iterator(this->_M_impl._M_header._M_left); } + + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return const_iterator(this->_M_impl._M_header._M_left); } + + iterator + end() _GLIBCXX_NOEXCEPT + { return iterator(&this->_M_impl._M_header); } + + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return const_iterator(&this->_M_impl._M_header); } + + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return reverse_iterator(end()); } + + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(end()); } + + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return reverse_iterator(begin()); } + + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(begin()); } + + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return _M_impl._M_node_count == 0; } + + size_type + size() const _GLIBCXX_NOEXCEPT + { return _M_impl._M_node_count; } + + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _Alloc_traits::max_size(_M_get_Node_allocator()); } + + void + swap(_Rb_tree& __t) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Compare>::value); + + // Insert/erase. +#if __cplusplus >= 201103L + template + pair + _M_insert_unique(_Arg&& __x); + + template + iterator + _M_insert_equal(_Arg&& __x); + + template + iterator + _M_insert_unique_(const_iterator __pos, _Arg&& __x, _NodeGen&); + + template + iterator + _M_insert_unique_(const_iterator __pos, _Arg&& __x) + { + _Alloc_node __an(*this); + return _M_insert_unique_(__pos, std::forward<_Arg>(__x), __an); + } + + template + iterator + _M_insert_equal_(const_iterator __pos, _Arg&& __x, _NodeGen&); + + template + iterator + _M_insert_equal_(const_iterator __pos, _Arg&& __x) + { + _Alloc_node __an(*this); + return _M_insert_equal_(__pos, std::forward<_Arg>(__x), __an); + } + + template + pair + _M_emplace_unique(_Args&&... __args); + + template + iterator + _M_emplace_equal(_Args&&... __args); + + template + iterator + _M_emplace_hint_unique(const_iterator __pos, _Args&&... __args); + + template + iterator + _M_emplace_hint_equal(const_iterator __pos, _Args&&... __args); + + template + using __same_value_type + = is_same::value_type>; + + template + __enable_if_t<__same_value_type<_InputIterator>::value> + _M_insert_range_unique(_InputIterator __first, _InputIterator __last) + { + _Alloc_node __an(*this); + for (; __first != __last; ++__first) + _M_insert_unique_(end(), *__first, __an); + } + + template + __enable_if_t::value> + _M_insert_range_unique(_InputIterator __first, _InputIterator __last) + { + for (; __first != __last; ++__first) + _M_emplace_unique(*__first); + } + + template + __enable_if_t<__same_value_type<_InputIterator>::value> + _M_insert_range_equal(_InputIterator __first, _InputIterator __last) + { + _Alloc_node __an(*this); + for (; __first != __last; ++__first) + _M_insert_equal_(end(), *__first, __an); + } + + template + __enable_if_t::value> + _M_insert_range_equal(_InputIterator __first, _InputIterator __last) + { + _Alloc_node __an(*this); + for (; __first != __last; ++__first) + _M_emplace_equal(*__first); + } +#else + pair + _M_insert_unique(const value_type& __x); + + iterator + _M_insert_equal(const value_type& __x); + + template + iterator + _M_insert_unique_(const_iterator __pos, const value_type& __x, + _NodeGen&); + + iterator + _M_insert_unique_(const_iterator __pos, const value_type& __x) + { + _Alloc_node __an(*this); + return _M_insert_unique_(__pos, __x, __an); + } + + template + iterator + _M_insert_equal_(const_iterator __pos, const value_type& __x, + _NodeGen&); + iterator + _M_insert_equal_(const_iterator __pos, const value_type& __x) + { + _Alloc_node __an(*this); + return _M_insert_equal_(__pos, __x, __an); + } + + template + void + _M_insert_range_unique(_InputIterator __first, _InputIterator __last) + { + _Alloc_node __an(*this); + for (; __first != __last; ++__first) + _M_insert_unique_(end(), *__first, __an); + } + + template + void + _M_insert_range_equal(_InputIterator __first, _InputIterator __last) + { + _Alloc_node __an(*this); + for (; __first != __last; ++__first) + _M_insert_equal_(end(), *__first, __an); + } +#endif + + private: + void + _M_erase_aux(const_iterator __position); + + void + _M_erase_aux(const_iterator __first, const_iterator __last); + + public: +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(const_iterator __position) + { + __glibcxx_assert(__position != end()); + const_iterator __result = __position; + ++__result; + _M_erase_aux(__position); + return __result._M_const_cast(); + } + + // LWG 2059. + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(iterator __position) + { + __glibcxx_assert(__position != end()); + iterator __result = __position; + ++__result; + _M_erase_aux(__position); + return __result; + } +#else + void + erase(iterator __position) + { + __glibcxx_assert(__position != end()); + _M_erase_aux(__position); + } + + void + erase(const_iterator __position) + { + __glibcxx_assert(__position != end()); + _M_erase_aux(__position); + } +#endif + + size_type + erase(const key_type& __x); + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 130. Associative erase should return an iterator. + _GLIBCXX_ABI_TAG_CXX11 + iterator + erase(const_iterator __first, const_iterator __last) + { + _M_erase_aux(__first, __last); + return __last._M_const_cast(); + } +#else + void + erase(iterator __first, iterator __last) + { _M_erase_aux(__first, __last); } + + void + erase(const_iterator __first, const_iterator __last) + { _M_erase_aux(__first, __last); } +#endif + + void + clear() _GLIBCXX_NOEXCEPT + { + _M_erase(_M_begin()); + _M_impl._M_reset(); + } + + // Set operations. + iterator + find(const key_type& __k); + + const_iterator + find(const key_type& __k) const; + + size_type + count(const key_type& __k) const; + + iterator + lower_bound(const key_type& __k) + { return _M_lower_bound(_M_begin(), _M_end(), __k); } + + const_iterator + lower_bound(const key_type& __k) const + { return _M_lower_bound(_M_begin(), _M_end(), __k); } + + iterator + upper_bound(const key_type& __k) + { return _M_upper_bound(_M_begin(), _M_end(), __k); } + + const_iterator + upper_bound(const key_type& __k) const + { return _M_upper_bound(_M_begin(), _M_end(), __k); } + + pair + equal_range(const key_type& __k); + + pair + equal_range(const key_type& __k) const; + +#if __cplusplus >= 201402L + template> + iterator + _M_find_tr(const _Kt& __k) + { + const _Rb_tree* __const_this = this; + return __const_this->_M_find_tr(__k)._M_const_cast(); + } + + template> + const_iterator + _M_find_tr(const _Kt& __k) const + { + auto __j = _M_lower_bound_tr(__k); + if (__j != end() && _M_impl._M_key_compare(__k, _S_key(__j._M_node))) + __j = end(); + return __j; + } + + template> + size_type + _M_count_tr(const _Kt& __k) const + { + auto __p = _M_equal_range_tr(__k); + return std::distance(__p.first, __p.second); + } + + template> + iterator + _M_lower_bound_tr(const _Kt& __k) + { + const _Rb_tree* __const_this = this; + return __const_this->_M_lower_bound_tr(__k)._M_const_cast(); + } + + template> + const_iterator + _M_lower_bound_tr(const _Kt& __k) const + { + auto __x = _M_begin(); + auto __y = _M_end(); + while (__x != 0) + if (!_M_impl._M_key_compare(_S_key(__x), __k)) + { + __y = __x; + __x = _S_left(__x); + } + else + __x = _S_right(__x); + return const_iterator(__y); + } + + template> + iterator + _M_upper_bound_tr(const _Kt& __k) + { + const _Rb_tree* __const_this = this; + return __const_this->_M_upper_bound_tr(__k)._M_const_cast(); + } + + template> + const_iterator + _M_upper_bound_tr(const _Kt& __k) const + { + auto __x = _M_begin(); + auto __y = _M_end(); + while (__x != 0) + if (_M_impl._M_key_compare(__k, _S_key(__x))) + { + __y = __x; + __x = _S_left(__x); + } + else + __x = _S_right(__x); + return const_iterator(__y); + } + + template> + pair + _M_equal_range_tr(const _Kt& __k) + { + const _Rb_tree* __const_this = this; + auto __ret = __const_this->_M_equal_range_tr(__k); + return { __ret.first._M_const_cast(), __ret.second._M_const_cast() }; + } + + template> + pair + _M_equal_range_tr(const _Kt& __k) const + { + auto __low = _M_lower_bound_tr(__k); + auto __high = __low; + auto& __cmp = _M_impl._M_key_compare; + while (__high != end() && !__cmp(__k, _S_key(__high._M_node))) + ++__high; + return { __low, __high }; + } +#endif + + // Debugging. + bool + __rb_verify() const; + +#if __cplusplus >= 201103L + _Rb_tree& + operator=(_Rb_tree&&) + noexcept(_Alloc_traits::_S_nothrow_move() + && is_nothrow_move_assignable<_Compare>::value); + + template + void + _M_assign_unique(_Iterator, _Iterator); + + template + void + _M_assign_equal(_Iterator, _Iterator); + + private: + // Move elements from container with equal allocator. + void + _M_move_data(_Rb_tree& __x, true_type) + { _M_impl._M_move_data(__x._M_impl); } + + // Move elements from container with possibly non-equal allocator, + // which might result in a copy not a move. + void + _M_move_data(_Rb_tree&, false_type); + + // Move assignment from container with equal allocator. + void + _M_move_assign(_Rb_tree&, true_type); + + // Move assignment from container with possibly non-equal allocator, + // which might result in a copy not a move. + void + _M_move_assign(_Rb_tree&, false_type); +#endif + +#if __cplusplus > 201402L + public: + /// Re-insert an extracted node. + insert_return_type + _M_reinsert_node_unique(node_type&& __nh) + { + insert_return_type __ret; + if (__nh.empty()) + __ret.position = end(); + else + { + __glibcxx_assert(_M_get_Node_allocator() == *__nh._M_alloc); + + auto __res = _M_get_insert_unique_pos(__nh._M_key()); + if (__res.second) + { + __ret.position + = _M_insert_node(__res.first, __res.second, __nh._M_ptr); + __nh._M_ptr = nullptr; + __ret.inserted = true; + } + else + { + __ret.node = std::move(__nh); + __ret.position = iterator(__res.first); + __ret.inserted = false; + } + } + return __ret; + } + + /// Re-insert an extracted node. + iterator + _M_reinsert_node_equal(node_type&& __nh) + { + iterator __ret; + if (__nh.empty()) + __ret = end(); + else + { + __glibcxx_assert(_M_get_Node_allocator() == *__nh._M_alloc); + auto __res = _M_get_insert_equal_pos(__nh._M_key()); + if (__res.second) + __ret = _M_insert_node(__res.first, __res.second, __nh._M_ptr); + else + __ret = _M_insert_equal_lower_node(__nh._M_ptr); + __nh._M_ptr = nullptr; + } + return __ret; + } + + /// Re-insert an extracted node. + iterator + _M_reinsert_node_hint_unique(const_iterator __hint, node_type&& __nh) + { + iterator __ret; + if (__nh.empty()) + __ret = end(); + else + { + __glibcxx_assert(_M_get_Node_allocator() == *__nh._M_alloc); + auto __res = _M_get_insert_hint_unique_pos(__hint, __nh._M_key()); + if (__res.second) + { + __ret = _M_insert_node(__res.first, __res.second, __nh._M_ptr); + __nh._M_ptr = nullptr; + } + else + __ret = iterator(__res.first); + } + return __ret; + } + + /// Re-insert an extracted node. + iterator + _M_reinsert_node_hint_equal(const_iterator __hint, node_type&& __nh) + { + iterator __ret; + if (__nh.empty()) + __ret = end(); + else + { + __glibcxx_assert(_M_get_Node_allocator() == *__nh._M_alloc); + auto __res = _M_get_insert_hint_equal_pos(__hint, __nh._M_key()); + if (__res.second) + __ret = _M_insert_node(__res.first, __res.second, __nh._M_ptr); + else + __ret = _M_insert_equal_lower_node(__nh._M_ptr); + __nh._M_ptr = nullptr; + } + return __ret; + } + + /// Extract a node. + node_type + extract(const_iterator __pos) + { + auto __ptr = _Rb_tree_rebalance_for_erase( + __pos._M_const_cast()._M_node, _M_impl._M_header); + --_M_impl._M_node_count; + return { static_cast<_Link_type>(__ptr), _M_get_Node_allocator() }; + } + + /// Extract a node. + node_type + extract(const key_type& __k) + { + node_type __nh; + auto __pos = find(__k); + if (__pos != end()) + __nh = extract(const_iterator(__pos)); + return __nh; + } + + template + using _Compatible_tree + = _Rb_tree<_Key, _Val, _KeyOfValue, _Compare2, _Alloc>; + + template + friend class _Rb_tree_merge_helper; + + /// Merge from a compatible container into one with unique keys. + template + void + _M_merge_unique(_Compatible_tree<_Compare2>& __src) noexcept + { + using _Merge_helper = _Rb_tree_merge_helper<_Rb_tree, _Compare2>; + for (auto __i = __src.begin(), __end = __src.end(); __i != __end;) + { + auto __pos = __i++; + auto __res = _M_get_insert_unique_pos(_KeyOfValue()(*__pos)); + if (__res.second) + { + auto& __src_impl = _Merge_helper::_S_get_impl(__src); + auto __ptr = _Rb_tree_rebalance_for_erase( + __pos._M_node, __src_impl._M_header); + --__src_impl._M_node_count; + _M_insert_node(__res.first, __res.second, + static_cast<_Link_type>(__ptr)); + } + } + } + + /// Merge from a compatible container into one with equivalent keys. + template + void + _M_merge_equal(_Compatible_tree<_Compare2>& __src) noexcept + { + using _Merge_helper = _Rb_tree_merge_helper<_Rb_tree, _Compare2>; + for (auto __i = __src.begin(), __end = __src.end(); __i != __end;) + { + auto __pos = __i++; + auto __res = _M_get_insert_equal_pos(_KeyOfValue()(*__pos)); + if (__res.second) + { + auto& __src_impl = _Merge_helper::_S_get_impl(__src); + auto __ptr = _Rb_tree_rebalance_for_erase( + __pos._M_node, __src_impl._M_header); + --__src_impl._M_node_count; + _M_insert_node(__res.first, __res.second, + static_cast<_Link_type>(__ptr)); + } + } + } +#endif // C++17 + + friend bool + operator==(const _Rb_tree& __x, const _Rb_tree& __y) + { + return __x.size() == __y.size() + && std::equal(__x.begin(), __x.end(), __y.begin()); + } + +#if __cpp_lib_three_way_comparison + friend auto + operator<=>(const _Rb_tree& __x, const _Rb_tree& __y) + { + if constexpr (requires { typename __detail::__synth3way_t<_Val>; }) + return std::lexicographical_compare_three_way(__x.begin(), __x.end(), + __y.begin(), __y.end(), + __detail::__synth3way); + } +#else + friend bool + operator<(const _Rb_tree& __x, const _Rb_tree& __y) + { + return std::lexicographical_compare(__x.begin(), __x.end(), + __y.begin(), __y.end()); + } + + friend bool _GLIBCXX_DEPRECATED + operator!=(const _Rb_tree& __x, const _Rb_tree& __y) + { return !(__x == __y); } + + friend bool _GLIBCXX_DEPRECATED + operator>(const _Rb_tree& __x, const _Rb_tree& __y) + { return __y < __x; } + + friend bool _GLIBCXX_DEPRECATED + operator<=(const _Rb_tree& __x, const _Rb_tree& __y) + { return !(__y < __x); } + + friend bool _GLIBCXX_DEPRECATED + operator>=(const _Rb_tree& __x, const _Rb_tree& __y) + { return !(__x < __y); } +#endif + }; + + template + inline void + swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x, + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y) + { __x.swap(__y); } + +#if __cplusplus >= 201103L + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_move_data(_Rb_tree& __x, false_type) + { + if (_M_get_Node_allocator() == __x._M_get_Node_allocator()) + _M_move_data(__x, true_type()); + else + { + _Alloc_node __an(*this); + auto __lbd = + [&__an](const value_type& __cval) + { + auto& __val = const_cast(__cval); + return __an(std::move_if_noexcept(__val)); + }; + _M_root() = _M_copy(__x, __lbd); + } + } + + template + inline void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_move_assign(_Rb_tree& __x, true_type) + { + clear(); + if (__x._M_root() != nullptr) + _M_move_data(__x, true_type()); + std::__alloc_on_move(_M_get_Node_allocator(), + __x._M_get_Node_allocator()); + } + + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_move_assign(_Rb_tree& __x, false_type) + { + if (_M_get_Node_allocator() == __x._M_get_Node_allocator()) + return _M_move_assign(__x, true_type{}); + + // Try to move each node reusing existing nodes and copying __x nodes + // structure. + _Reuse_or_alloc_node __roan(*this); + _M_impl._M_reset(); + if (__x._M_root() != nullptr) + { + auto __lbd = + [&__roan](const value_type& __cval) + { + auto& __val = const_cast(__cval); + return __roan(std::move(__val)); + }; + _M_root() = _M_copy(__x, __lbd); + __x.clear(); + } + } + + template + inline _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + operator=(_Rb_tree&& __x) + noexcept(_Alloc_traits::_S_nothrow_move() + && is_nothrow_move_assignable<_Compare>::value) + { + _M_impl._M_key_compare = std::move(__x._M_impl._M_key_compare); + _M_move_assign(__x, __bool_constant<_Alloc_traits::_S_nothrow_move()>()); + return *this; + } + + template + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_assign_unique(_Iterator __first, _Iterator __last) + { + _Reuse_or_alloc_node __roan(*this); + _M_impl._M_reset(); + for (; __first != __last; ++__first) + _M_insert_unique_(end(), *__first, __roan); + } + + template + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_assign_equal(_Iterator __first, _Iterator __last) + { + _Reuse_or_alloc_node __roan(*this); + _M_impl._M_reset(); + for (; __first != __last; ++__first) + _M_insert_equal_(end(), *__first, __roan); + } +#endif + + template + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + operator=(const _Rb_tree& __x) + { + if (this != &__x) + { + // Note that _Key may be a constant type. +#if __cplusplus >= 201103L + if (_Alloc_traits::_S_propagate_on_copy_assign()) + { + auto& __this_alloc = this->_M_get_Node_allocator(); + auto& __that_alloc = __x._M_get_Node_allocator(); + if (!_Alloc_traits::_S_always_equal() + && __this_alloc != __that_alloc) + { + // Replacement allocator cannot free existing storage, we need + // to erase nodes first. + clear(); + std::__alloc_on_copy(__this_alloc, __that_alloc); + } + } +#endif + + _Reuse_or_alloc_node __roan(*this); + _M_impl._M_reset(); + _M_impl._M_key_compare = __x._M_impl._M_key_compare; + if (__x._M_root() != 0) + _M_root() = _M_copy(__x, __roan); + } + + return *this; + } + + template +#if __cplusplus >= 201103L + template +#else + template +#endif + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_insert_(_Base_ptr __x, _Base_ptr __p, +#if __cplusplus >= 201103L + _Arg&& __v, +#else + const _Val& __v, +#endif + _NodeGen& __node_gen) + { + bool __insert_left = (__x != 0 || __p == _M_end() + || _M_impl._M_key_compare(_KeyOfValue()(__v), + _S_key(__p))); + + _Link_type __z = __node_gen(_GLIBCXX_FORWARD(_Arg, __v)); + + _Rb_tree_insert_and_rebalance(__insert_left, __z, __p, + this->_M_impl._M_header); + ++_M_impl._M_node_count; + return iterator(__z); + } + + template +#if __cplusplus >= 201103L + template +#endif + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: +#if __cplusplus >= 201103L + _M_insert_lower(_Base_ptr __p, _Arg&& __v) +#else + _M_insert_lower(_Base_ptr __p, const _Val& __v) +#endif + { + bool __insert_left = (__p == _M_end() + || !_M_impl._M_key_compare(_S_key(__p), + _KeyOfValue()(__v))); + + _Link_type __z = _M_create_node(_GLIBCXX_FORWARD(_Arg, __v)); + + _Rb_tree_insert_and_rebalance(__insert_left, __z, __p, + this->_M_impl._M_header); + ++_M_impl._M_node_count; + return iterator(__z); + } + + template +#if __cplusplus >= 201103L + template +#endif + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: +#if __cplusplus >= 201103L + _M_insert_equal_lower(_Arg&& __v) +#else + _M_insert_equal_lower(const _Val& __v) +#endif + { + _Link_type __x = _M_begin(); + _Base_ptr __y = _M_end(); + while (__x != 0) + { + __y = __x; + __x = !_M_impl._M_key_compare(_S_key(__x), _KeyOfValue()(__v)) ? + _S_left(__x) : _S_right(__x); + } + return _M_insert_lower(__y, _GLIBCXX_FORWARD(_Arg, __v)); + } + + template + template + typename _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::_Link_type + _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>:: + _M_copy(_Const_Link_type __x, _Base_ptr __p, _NodeGen& __node_gen) + { + // Structural copy. __x and __p must be non-null. + _Link_type __top = _M_clone_node(__x, __node_gen); + __top->_M_parent = __p; + + __try + { + if (__x->_M_right) + __top->_M_right = _M_copy(_S_right(__x), __top, __node_gen); + __p = __top; + __x = _S_left(__x); + + while (__x != 0) + { + _Link_type __y = _M_clone_node(__x, __node_gen); + __p->_M_left = __y; + __y->_M_parent = __p; + if (__x->_M_right) + __y->_M_right = _M_copy(_S_right(__x), __y, __node_gen); + __p = __y; + __x = _S_left(__x); + } + } + __catch(...) + { + _M_erase(__top); + __throw_exception_again; + } + return __top; + } + + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_erase(_Link_type __x) + { + // Erase without rebalancing. + while (__x != 0) + { + _M_erase(_S_right(__x)); + _Link_type __y = _S_left(__x); + _M_drop_node(__x); + __x = __y; + } + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_lower_bound(_Link_type __x, _Base_ptr __y, + const _Key& __k) + { + while (__x != 0) + if (!_M_impl._M_key_compare(_S_key(__x), __k)) + __y = __x, __x = _S_left(__x); + else + __x = _S_right(__x); + return iterator(__y); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::const_iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_lower_bound(_Const_Link_type __x, _Const_Base_ptr __y, + const _Key& __k) const + { + while (__x != 0) + if (!_M_impl._M_key_compare(_S_key(__x), __k)) + __y = __x, __x = _S_left(__x); + else + __x = _S_right(__x); + return const_iterator(__y); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_upper_bound(_Link_type __x, _Base_ptr __y, + const _Key& __k) + { + while (__x != 0) + if (_M_impl._M_key_compare(__k, _S_key(__x))) + __y = __x, __x = _S_left(__x); + else + __x = _S_right(__x); + return iterator(__y); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::const_iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_upper_bound(_Const_Link_type __x, _Const_Base_ptr __y, + const _Key& __k) const + { + while (__x != 0) + if (_M_impl._M_key_compare(__k, _S_key(__x))) + __y = __x, __x = _S_left(__x); + else + __x = _S_right(__x); + return const_iterator(__y); + } + + template + pair::iterator, + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::iterator> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + equal_range(const _Key& __k) + { + _Link_type __x = _M_begin(); + _Base_ptr __y = _M_end(); + while (__x != 0) + { + if (_M_impl._M_key_compare(_S_key(__x), __k)) + __x = _S_right(__x); + else if (_M_impl._M_key_compare(__k, _S_key(__x))) + __y = __x, __x = _S_left(__x); + else + { + _Link_type __xu(__x); + _Base_ptr __yu(__y); + __y = __x, __x = _S_left(__x); + __xu = _S_right(__xu); + return pair(_M_lower_bound(__x, __y, __k), + _M_upper_bound(__xu, __yu, __k)); + } + } + return pair(iterator(__y), + iterator(__y)); + } + + template + pair::const_iterator, + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::const_iterator> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + equal_range(const _Key& __k) const + { + _Const_Link_type __x = _M_begin(); + _Const_Base_ptr __y = _M_end(); + while (__x != 0) + { + if (_M_impl._M_key_compare(_S_key(__x), __k)) + __x = _S_right(__x); + else if (_M_impl._M_key_compare(__k, _S_key(__x))) + __y = __x, __x = _S_left(__x); + else + { + _Const_Link_type __xu(__x); + _Const_Base_ptr __yu(__y); + __y = __x, __x = _S_left(__x); + __xu = _S_right(__xu); + return pair(_M_lower_bound(__x, __y, __k), + _M_upper_bound(__xu, __yu, __k)); + } + } + return pair(const_iterator(__y), + const_iterator(__y)); + } + + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + swap(_Rb_tree& __t) + _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Compare>::value) + { + if (_M_root() == 0) + { + if (__t._M_root() != 0) + _M_impl._M_move_data(__t._M_impl); + } + else if (__t._M_root() == 0) + __t._M_impl._M_move_data(_M_impl); + else + { + std::swap(_M_root(),__t._M_root()); + std::swap(_M_leftmost(),__t._M_leftmost()); + std::swap(_M_rightmost(),__t._M_rightmost()); + + _M_root()->_M_parent = _M_end(); + __t._M_root()->_M_parent = __t._M_end(); + std::swap(this->_M_impl._M_node_count, __t._M_impl._M_node_count); + } + // No need to swap header's color as it does not change. + std::swap(this->_M_impl._M_key_compare, __t._M_impl._M_key_compare); + + _Alloc_traits::_S_on_swap(_M_get_Node_allocator(), + __t._M_get_Node_allocator()); + } + + template + pair::_Base_ptr, + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::_Base_ptr> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_get_insert_unique_pos(const key_type& __k) + { + typedef pair<_Base_ptr, _Base_ptr> _Res; + _Link_type __x = _M_begin(); + _Base_ptr __y = _M_end(); + bool __comp = true; + while (__x != 0) + { + __y = __x; + __comp = _M_impl._M_key_compare(__k, _S_key(__x)); + __x = __comp ? _S_left(__x) : _S_right(__x); + } + iterator __j = iterator(__y); + if (__comp) + { + if (__j == begin()) + return _Res(__x, __y); + else + --__j; + } + if (_M_impl._M_key_compare(_S_key(__j._M_node), __k)) + return _Res(__x, __y); + return _Res(__j._M_node, 0); + } + + template + pair::_Base_ptr, + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::_Base_ptr> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_get_insert_equal_pos(const key_type& __k) + { + typedef pair<_Base_ptr, _Base_ptr> _Res; + _Link_type __x = _M_begin(); + _Base_ptr __y = _M_end(); + while (__x != 0) + { + __y = __x; + __x = _M_impl._M_key_compare(__k, _S_key(__x)) ? + _S_left(__x) : _S_right(__x); + } + return _Res(__x, __y); + } + + template +#if __cplusplus >= 201103L + template +#endif + pair::iterator, bool> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: +#if __cplusplus >= 201103L + _M_insert_unique(_Arg&& __v) +#else + _M_insert_unique(const _Val& __v) +#endif + { + typedef pair _Res; + pair<_Base_ptr, _Base_ptr> __res + = _M_get_insert_unique_pos(_KeyOfValue()(__v)); + + if (__res.second) + { + _Alloc_node __an(*this); + return _Res(_M_insert_(__res.first, __res.second, + _GLIBCXX_FORWARD(_Arg, __v), __an), + true); + } + + return _Res(iterator(__res.first), false); + } + + template +#if __cplusplus >= 201103L + template +#endif + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: +#if __cplusplus >= 201103L + _M_insert_equal(_Arg&& __v) +#else + _M_insert_equal(const _Val& __v) +#endif + { + pair<_Base_ptr, _Base_ptr> __res + = _M_get_insert_equal_pos(_KeyOfValue()(__v)); + _Alloc_node __an(*this); + return _M_insert_(__res.first, __res.second, + _GLIBCXX_FORWARD(_Arg, __v), __an); + } + + template + pair::_Base_ptr, + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::_Base_ptr> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_get_insert_hint_unique_pos(const_iterator __position, + const key_type& __k) + { + iterator __pos = __position._M_const_cast(); + typedef pair<_Base_ptr, _Base_ptr> _Res; + + // end() + if (__pos._M_node == _M_end()) + { + if (size() > 0 + && _M_impl._M_key_compare(_S_key(_M_rightmost()), __k)) + return _Res(0, _M_rightmost()); + else + return _M_get_insert_unique_pos(__k); + } + else if (_M_impl._M_key_compare(__k, _S_key(__pos._M_node))) + { + // First, try before... + iterator __before = __pos; + if (__pos._M_node == _M_leftmost()) // begin() + return _Res(_M_leftmost(), _M_leftmost()); + else if (_M_impl._M_key_compare(_S_key((--__before)._M_node), __k)) + { + if (_S_right(__before._M_node) == 0) + return _Res(0, __before._M_node); + else + return _Res(__pos._M_node, __pos._M_node); + } + else + return _M_get_insert_unique_pos(__k); + } + else if (_M_impl._M_key_compare(_S_key(__pos._M_node), __k)) + { + // ... then try after. + iterator __after = __pos; + if (__pos._M_node == _M_rightmost()) + return _Res(0, _M_rightmost()); + else if (_M_impl._M_key_compare(__k, _S_key((++__after)._M_node))) + { + if (_S_right(__pos._M_node) == 0) + return _Res(0, __pos._M_node); + else + return _Res(__after._M_node, __after._M_node); + } + else + return _M_get_insert_unique_pos(__k); + } + else + // Equivalent keys. + return _Res(__pos._M_node, 0); + } + + template +#if __cplusplus >= 201103L + template +#else + template +#endif + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_insert_unique_(const_iterator __position, +#if __cplusplus >= 201103L + _Arg&& __v, +#else + const _Val& __v, +#endif + _NodeGen& __node_gen) + { + pair<_Base_ptr, _Base_ptr> __res + = _M_get_insert_hint_unique_pos(__position, _KeyOfValue()(__v)); + + if (__res.second) + return _M_insert_(__res.first, __res.second, + _GLIBCXX_FORWARD(_Arg, __v), + __node_gen); + return iterator(__res.first); + } + + template + pair::_Base_ptr, + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::_Base_ptr> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_get_insert_hint_equal_pos(const_iterator __position, const key_type& __k) + { + iterator __pos = __position._M_const_cast(); + typedef pair<_Base_ptr, _Base_ptr> _Res; + + // end() + if (__pos._M_node == _M_end()) + { + if (size() > 0 + && !_M_impl._M_key_compare(__k, _S_key(_M_rightmost()))) + return _Res(0, _M_rightmost()); + else + return _M_get_insert_equal_pos(__k); + } + else if (!_M_impl._M_key_compare(_S_key(__pos._M_node), __k)) + { + // First, try before... + iterator __before = __pos; + if (__pos._M_node == _M_leftmost()) // begin() + return _Res(_M_leftmost(), _M_leftmost()); + else if (!_M_impl._M_key_compare(__k, _S_key((--__before)._M_node))) + { + if (_S_right(__before._M_node) == 0) + return _Res(0, __before._M_node); + else + return _Res(__pos._M_node, __pos._M_node); + } + else + return _M_get_insert_equal_pos(__k); + } + else + { + // ... then try after. + iterator __after = __pos; + if (__pos._M_node == _M_rightmost()) + return _Res(0, _M_rightmost()); + else if (!_M_impl._M_key_compare(_S_key((++__after)._M_node), __k)) + { + if (_S_right(__pos._M_node) == 0) + return _Res(0, __pos._M_node); + else + return _Res(__after._M_node, __after._M_node); + } + else + return _Res(0, 0); + } + } + + template +#if __cplusplus >= 201103L + template +#else + template +#endif + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_insert_equal_(const_iterator __position, +#if __cplusplus >= 201103L + _Arg&& __v, +#else + const _Val& __v, +#endif + _NodeGen& __node_gen) + { + pair<_Base_ptr, _Base_ptr> __res + = _M_get_insert_hint_equal_pos(__position, _KeyOfValue()(__v)); + + if (__res.second) + return _M_insert_(__res.first, __res.second, + _GLIBCXX_FORWARD(_Arg, __v), + __node_gen); + + return _M_insert_equal_lower(_GLIBCXX_FORWARD(_Arg, __v)); + } + +#if __cplusplus >= 201103L + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_insert_node(_Base_ptr __x, _Base_ptr __p, _Link_type __z) + { + bool __insert_left = (__x != 0 || __p == _M_end() + || _M_impl._M_key_compare(_S_key(__z), + _S_key(__p))); + + _Rb_tree_insert_and_rebalance(__insert_left, __z, __p, + this->_M_impl._M_header); + ++_M_impl._M_node_count; + return iterator(__z); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_insert_lower_node(_Base_ptr __p, _Link_type __z) + { + bool __insert_left = (__p == _M_end() + || !_M_impl._M_key_compare(_S_key(__p), + _S_key(__z))); + + _Rb_tree_insert_and_rebalance(__insert_left, __z, __p, + this->_M_impl._M_header); + ++_M_impl._M_node_count; + return iterator(__z); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_insert_equal_lower_node(_Link_type __z) + { + _Link_type __x = _M_begin(); + _Base_ptr __y = _M_end(); + while (__x != 0) + { + __y = __x; + __x = !_M_impl._M_key_compare(_S_key(__x), _S_key(__z)) ? + _S_left(__x) : _S_right(__x); + } + return _M_insert_lower_node(__y, __z); + } + + template + template + pair::iterator, bool> + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_emplace_unique(_Args&&... __args) + { + _Link_type __z = _M_create_node(std::forward<_Args>(__args)...); + + __try + { + typedef pair _Res; + auto __res = _M_get_insert_unique_pos(_S_key(__z)); + if (__res.second) + return _Res(_M_insert_node(__res.first, __res.second, __z), true); + + _M_drop_node(__z); + return _Res(iterator(__res.first), false); + } + __catch(...) + { + _M_drop_node(__z); + __throw_exception_again; + } + } + + template + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_emplace_equal(_Args&&... __args) + { + _Link_type __z = _M_create_node(std::forward<_Args>(__args)...); + + __try + { + auto __res = _M_get_insert_equal_pos(_S_key(__z)); + return _M_insert_node(__res.first, __res.second, __z); + } + __catch(...) + { + _M_drop_node(__z); + __throw_exception_again; + } + } + + template + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_emplace_hint_unique(const_iterator __pos, _Args&&... __args) + { + _Link_type __z = _M_create_node(std::forward<_Args>(__args)...); + + __try + { + auto __res = _M_get_insert_hint_unique_pos(__pos, _S_key(__z)); + + if (__res.second) + return _M_insert_node(__res.first, __res.second, __z); + + _M_drop_node(__z); + return iterator(__res.first); + } + __catch(...) + { + _M_drop_node(__z); + __throw_exception_again; + } + } + + template + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_emplace_hint_equal(const_iterator __pos, _Args&&... __args) + { + _Link_type __z = _M_create_node(std::forward<_Args>(__args)...); + + __try + { + auto __res = _M_get_insert_hint_equal_pos(__pos, _S_key(__z)); + + if (__res.second) + return _M_insert_node(__res.first, __res.second, __z); + + return _M_insert_equal_lower_node(__z); + } + __catch(...) + { + _M_drop_node(__z); + __throw_exception_again; + } + } +#endif + + + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_erase_aux(const_iterator __position) + { + _Link_type __y = + static_cast<_Link_type>(_Rb_tree_rebalance_for_erase + (const_cast<_Base_ptr>(__position._M_node), + this->_M_impl._M_header)); + _M_drop_node(__y); + --_M_impl._M_node_count; + } + + template + void + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + _M_erase_aux(const_iterator __first, const_iterator __last) + { + if (__first == begin() && __last == end()) + clear(); + else + while (__first != __last) + _M_erase_aux(__first++); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::size_type + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + erase(const _Key& __x) + { + pair __p = equal_range(__x); + const size_type __old_size = size(); + _M_erase_aux(__p.first, __p.second); + return __old_size - size(); + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + find(const _Key& __k) + { + iterator __j = _M_lower_bound(_M_begin(), _M_end(), __k); + return (__j == end() + || _M_impl._M_key_compare(__k, + _S_key(__j._M_node))) ? end() : __j; + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, + _Compare, _Alloc>::const_iterator + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + find(const _Key& __k) const + { + const_iterator __j = _M_lower_bound(_M_begin(), _M_end(), __k); + return (__j == end() + || _M_impl._M_key_compare(__k, + _S_key(__j._M_node))) ? end() : __j; + } + + template + typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::size_type + _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>:: + count(const _Key& __k) const + { + pair __p = equal_range(__k); + const size_type __n = std::distance(__p.first, __p.second); + return __n; + } + + _GLIBCXX_PURE unsigned int + _Rb_tree_black_count(const _Rb_tree_node_base* __node, + const _Rb_tree_node_base* __root) throw (); + + template + bool + _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>::__rb_verify() const + { + if (_M_impl._M_node_count == 0 || begin() == end()) + return _M_impl._M_node_count == 0 && begin() == end() + && this->_M_impl._M_header._M_left == _M_end() + && this->_M_impl._M_header._M_right == _M_end(); + + unsigned int __len = _Rb_tree_black_count(_M_leftmost(), _M_root()); + for (const_iterator __it = begin(); __it != end(); ++__it) + { + _Const_Link_type __x = static_cast<_Const_Link_type>(__it._M_node); + _Const_Link_type __L = _S_left(__x); + _Const_Link_type __R = _S_right(__x); + + if (__x->_M_color == _S_red) + if ((__L && __L->_M_color == _S_red) + || (__R && __R->_M_color == _S_red)) + return false; + + if (__L && _M_impl._M_key_compare(_S_key(__x), _S_key(__L))) + return false; + if (__R && _M_impl._M_key_compare(_S_key(__R), _S_key(__x))) + return false; + + if (!__L && !__R && _Rb_tree_black_count(__x, _M_root()) != __len) + return false; + } + + if (_M_leftmost() != _Rb_tree_node_base::_S_minimum(_M_root())) + return false; + if (_M_rightmost() != _Rb_tree_node_base::_S_maximum(_M_root())) + return false; + return true; + } + +#if __cplusplus > 201402L + // Allow access to internals of compatible _Rb_tree specializations. + template + struct _Rb_tree_merge_helper<_Rb_tree<_Key, _Val, _Sel, _Cmp1, _Alloc>, + _Cmp2> + { + private: + friend class _Rb_tree<_Key, _Val, _Sel, _Cmp1, _Alloc>; + + static auto& + _S_get_impl(_Rb_tree<_Key, _Val, _Sel, _Cmp2, _Alloc>& __tree) + { return __tree._M_impl; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_uninitialized.h b/resources/sources/avr-libstdcpp/include/bits/stl_uninitialized.h new file mode 100644 index 000000000..3109a8946 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_uninitialized.h @@ -0,0 +1,1041 @@ +// Raw memory manipulators -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_uninitialized.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _STL_UNINITIALIZED_H +#define _STL_UNINITIALIZED_H 1 + +#if __cplusplus > 201402L +#include +#endif + +#if __cplusplus >= 201103L +#include +#endif + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** @addtogroup memory + * @{ + */ + + /// @cond undocumented + + template + struct __uninitialized_copy + { + template + static _ForwardIterator + __uninit_copy(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result) + { + _ForwardIterator __cur = __result; + __try + { + for (; __first != __last; ++__first, (void)++__cur) + std::_Construct(std::__addressof(*__cur), *__first); + return __cur; + } + __catch(...) + { + std::_Destroy(__result, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_copy + { + template + static _ForwardIterator + __uninit_copy(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result) + { return std::copy(__first, __last, __result); } + }; + + /// @endcond + + /** + * @brief Copies the range [first,last) into result. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @return __result + (__first - __last) + * + * Like copy(), but does not require an initialized output range. + */ + template + inline _ForwardIterator + uninitialized_copy(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result) + { + typedef typename iterator_traits<_InputIterator>::value_type + _ValueType1; + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType2; +#if __cplusplus < 201103L + const bool __assignable = true; +#else + // Trivial types can have deleted copy constructor, but the std::copy + // optimization that uses memmove would happily "copy" them anyway. + static_assert(is_constructible<_ValueType2, decltype(*__first)>::value, + "result type must be constructible from value type of input range"); + + typedef typename iterator_traits<_InputIterator>::reference _RefType1; + typedef typename iterator_traits<_ForwardIterator>::reference _RefType2; + // Trivial types can have deleted assignment, so using std::copy + // would be ill-formed. Require assignability before using std::copy: + const bool __assignable = is_assignable<_RefType2, _RefType1>::value; +#endif + + return std::__uninitialized_copy<__is_trivial(_ValueType1) + && __is_trivial(_ValueType2) + && __assignable>:: + __uninit_copy(__first, __last, __result); + } + + /// @cond undocumented + + template + struct __uninitialized_fill + { + template + static void + __uninit_fill(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __x) + { + _ForwardIterator __cur = __first; + __try + { + for (; __cur != __last; ++__cur) + std::_Construct(std::__addressof(*__cur), __x); + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_fill + { + template + static void + __uninit_fill(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __x) + { std::fill(__first, __last, __x); } + }; + + /// @endcond + + /** + * @brief Copies the value x into the range [first,last). + * @param __first An input iterator. + * @param __last An input iterator. + * @param __x The source value. + * @return Nothing. + * + * Like fill(), but does not require an initialized output range. + */ + template + inline void + uninitialized_fill(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __x) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; +#if __cplusplus < 201103L + const bool __assignable = true; +#else + // Trivial types can have deleted copy constructor, but the std::fill + // optimization that uses memmove would happily "copy" them anyway. + static_assert(is_constructible<_ValueType, const _Tp&>::value, + "result type must be constructible from input type"); + + // Trivial types can have deleted assignment, so using std::fill + // would be ill-formed. Require assignability before using std::fill: + const bool __assignable = is_copy_assignable<_ValueType>::value; +#endif + + std::__uninitialized_fill<__is_trivial(_ValueType) && __assignable>:: + __uninit_fill(__first, __last, __x); + } + + /// @cond undocumented + + template + struct __uninitialized_fill_n + { + template + static _ForwardIterator + __uninit_fill_n(_ForwardIterator __first, _Size __n, + const _Tp& __x) + { + _ForwardIterator __cur = __first; + __try + { + for (; __n > 0; --__n, (void) ++__cur) + std::_Construct(std::__addressof(*__cur), __x); + return __cur; + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_fill_n + { + template + static _ForwardIterator + __uninit_fill_n(_ForwardIterator __first, _Size __n, + const _Tp& __x) + { return std::fill_n(__first, __n, __x); } + }; + + /// @endcond + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 1339. uninitialized_fill_n should return the end of its range + /** + * @brief Copies the value x into the range [first,first+n). + * @param __first An input iterator. + * @param __n The number of copies to make. + * @param __x The source value. + * @return Nothing. + * + * Like fill_n(), but does not require an initialized output range. + */ + template + inline _ForwardIterator + uninitialized_fill_n(_ForwardIterator __first, _Size __n, const _Tp& __x) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; +#if __cplusplus < 201103L + const bool __assignable = true; +#else + // Trivial types can have deleted copy constructor, but the std::fill + // optimization that uses memmove would happily "copy" them anyway. + static_assert(is_constructible<_ValueType, const _Tp&>::value, + "result type must be constructible from input type"); + + // Trivial types can have deleted assignment, so using std::fill + // would be ill-formed. Require assignability before using std::fill: + const bool __assignable = is_copy_assignable<_ValueType>::value; +#endif + return __uninitialized_fill_n<__is_trivial(_ValueType) && __assignable>:: + __uninit_fill_n(__first, __n, __x); + } + + /// @cond undocumented + + // Extensions: versions of uninitialized_copy, uninitialized_fill, + // and uninitialized_fill_n that take an allocator parameter. + // We dispatch back to the standard versions when we're given the + // default allocator. For nondefault allocators we do not use + // any of the POD optimizations. + + template + _ForwardIterator + __uninitialized_copy_a(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result, _Allocator& __alloc) + { + _ForwardIterator __cur = __result; + __try + { + typedef __gnu_cxx::__alloc_traits<_Allocator> __traits; + for (; __first != __last; ++__first, (void)++__cur) + __traits::construct(__alloc, std::__addressof(*__cur), *__first); + return __cur; + } + __catch(...) + { + std::_Destroy(__result, __cur, __alloc); + __throw_exception_again; + } + } + + template + inline _ForwardIterator + __uninitialized_copy_a(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result, allocator<_Tp>&) + { return std::uninitialized_copy(__first, __last, __result); } + + template + inline _ForwardIterator + __uninitialized_move_a(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result, _Allocator& __alloc) + { + return std::__uninitialized_copy_a(_GLIBCXX_MAKE_MOVE_ITERATOR(__first), + _GLIBCXX_MAKE_MOVE_ITERATOR(__last), + __result, __alloc); + } + + template + inline _ForwardIterator + __uninitialized_move_if_noexcept_a(_InputIterator __first, + _InputIterator __last, + _ForwardIterator __result, + _Allocator& __alloc) + { + return std::__uninitialized_copy_a + (_GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(__first), + _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(__last), __result, __alloc); + } + + template + void + __uninitialized_fill_a(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __x, _Allocator& __alloc) + { + _ForwardIterator __cur = __first; + __try + { + typedef __gnu_cxx::__alloc_traits<_Allocator> __traits; + for (; __cur != __last; ++__cur) + __traits::construct(__alloc, std::__addressof(*__cur), __x); + } + __catch(...) + { + std::_Destroy(__first, __cur, __alloc); + __throw_exception_again; + } + } + + template + inline void + __uninitialized_fill_a(_ForwardIterator __first, _ForwardIterator __last, + const _Tp& __x, allocator<_Tp2>&) + { std::uninitialized_fill(__first, __last, __x); } + + template + _ForwardIterator + __uninitialized_fill_n_a(_ForwardIterator __first, _Size __n, + const _Tp& __x, _Allocator& __alloc) + { + _ForwardIterator __cur = __first; + __try + { + typedef __gnu_cxx::__alloc_traits<_Allocator> __traits; + for (; __n > 0; --__n, (void) ++__cur) + __traits::construct(__alloc, std::__addressof(*__cur), __x); + return __cur; + } + __catch(...) + { + std::_Destroy(__first, __cur, __alloc); + __throw_exception_again; + } + } + + template + inline _ForwardIterator + __uninitialized_fill_n_a(_ForwardIterator __first, _Size __n, + const _Tp& __x, allocator<_Tp2>&) + { return std::uninitialized_fill_n(__first, __n, __x); } + + + // Extensions: __uninitialized_copy_move, __uninitialized_move_copy, + // __uninitialized_fill_move, __uninitialized_move_fill. + // All of these algorithms take a user-supplied allocator, which is used + // for construction and destruction. + + // __uninitialized_copy_move + // Copies [first1, last1) into [result, result + (last1 - first1)), and + // move [first2, last2) into + // [result, result + (last1 - first1) + (last2 - first2)). + template + inline _ForwardIterator + __uninitialized_copy_move(_InputIterator1 __first1, + _InputIterator1 __last1, + _InputIterator2 __first2, + _InputIterator2 __last2, + _ForwardIterator __result, + _Allocator& __alloc) + { + _ForwardIterator __mid = std::__uninitialized_copy_a(__first1, __last1, + __result, + __alloc); + __try + { + return std::__uninitialized_move_a(__first2, __last2, __mid, __alloc); + } + __catch(...) + { + std::_Destroy(__result, __mid, __alloc); + __throw_exception_again; + } + } + + // __uninitialized_move_copy + // Moves [first1, last1) into [result, result + (last1 - first1)), and + // copies [first2, last2) into + // [result, result + (last1 - first1) + (last2 - first2)). + template + inline _ForwardIterator + __uninitialized_move_copy(_InputIterator1 __first1, + _InputIterator1 __last1, + _InputIterator2 __first2, + _InputIterator2 __last2, + _ForwardIterator __result, + _Allocator& __alloc) + { + _ForwardIterator __mid = std::__uninitialized_move_a(__first1, __last1, + __result, + __alloc); + __try + { + return std::__uninitialized_copy_a(__first2, __last2, __mid, __alloc); + } + __catch(...) + { + std::_Destroy(__result, __mid, __alloc); + __throw_exception_again; + } + } + + // __uninitialized_fill_move + // Fills [result, mid) with x, and moves [first, last) into + // [mid, mid + (last - first)). + template + inline _ForwardIterator + __uninitialized_fill_move(_ForwardIterator __result, _ForwardIterator __mid, + const _Tp& __x, _InputIterator __first, + _InputIterator __last, _Allocator& __alloc) + { + std::__uninitialized_fill_a(__result, __mid, __x, __alloc); + __try + { + return std::__uninitialized_move_a(__first, __last, __mid, __alloc); + } + __catch(...) + { + std::_Destroy(__result, __mid, __alloc); + __throw_exception_again; + } + } + + // __uninitialized_move_fill + // Moves [first1, last1) into [first2, first2 + (last1 - first1)), and + // fills [first2 + (last1 - first1), last2) with x. + template + inline void + __uninitialized_move_fill(_InputIterator __first1, _InputIterator __last1, + _ForwardIterator __first2, + _ForwardIterator __last2, const _Tp& __x, + _Allocator& __alloc) + { + _ForwardIterator __mid2 = std::__uninitialized_move_a(__first1, __last1, + __first2, + __alloc); + __try + { + std::__uninitialized_fill_a(__mid2, __last2, __x, __alloc); + } + __catch(...) + { + std::_Destroy(__first2, __mid2, __alloc); + __throw_exception_again; + } + } + + /// @endcond + +#if __cplusplus >= 201103L + /// @cond undocumented + + // Extensions: __uninitialized_default, __uninitialized_default_n, + // __uninitialized_default_a, __uninitialized_default_n_a. + + template + struct __uninitialized_default_1 + { + template + static void + __uninit_default(_ForwardIterator __first, _ForwardIterator __last) + { + _ForwardIterator __cur = __first; + __try + { + for (; __cur != __last; ++__cur) + std::_Construct(std::__addressof(*__cur)); + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_default_1 + { + template + static void + __uninit_default(_ForwardIterator __first, _ForwardIterator __last) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + + std::fill(__first, __last, _ValueType()); + } + }; + + template + struct __uninitialized_default_n_1 + { + template + static _ForwardIterator + __uninit_default_n(_ForwardIterator __first, _Size __n) + { + _ForwardIterator __cur = __first; + __try + { + for (; __n > 0; --__n, (void) ++__cur) + std::_Construct(std::__addressof(*__cur)); + return __cur; + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_default_n_1 + { + template + static _ForwardIterator + __uninit_default_n(_ForwardIterator __first, _Size __n) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + + return std::fill_n(__first, __n, _ValueType()); + } + }; + + // __uninitialized_default + // Fills [first, last) with std::distance(first, last) default + // constructed value_types(s). + template + inline void + __uninitialized_default(_ForwardIterator __first, + _ForwardIterator __last) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + // trivial types can have deleted assignment + const bool __assignable = is_copy_assignable<_ValueType>::value; + + std::__uninitialized_default_1<__is_trivial(_ValueType) + && __assignable>:: + __uninit_default(__first, __last); + } + + // __uninitialized_default_n + // Fills [first, first + n) with n default constructed value_type(s). + template + inline _ForwardIterator + __uninitialized_default_n(_ForwardIterator __first, _Size __n) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + // trivial types can have deleted assignment + const bool __assignable = is_copy_assignable<_ValueType>::value; + + return __uninitialized_default_n_1<__is_trivial(_ValueType) + && __assignable>:: + __uninit_default_n(__first, __n); + } + + + // __uninitialized_default_a + // Fills [first, last) with std::distance(first, last) default + // constructed value_types(s), constructed with the allocator alloc. + template + void + __uninitialized_default_a(_ForwardIterator __first, + _ForwardIterator __last, + _Allocator& __alloc) + { + _ForwardIterator __cur = __first; + __try + { + typedef __gnu_cxx::__alloc_traits<_Allocator> __traits; + for (; __cur != __last; ++__cur) + __traits::construct(__alloc, std::__addressof(*__cur)); + } + __catch(...) + { + std::_Destroy(__first, __cur, __alloc); + __throw_exception_again; + } + } + + template + inline void + __uninitialized_default_a(_ForwardIterator __first, + _ForwardIterator __last, + allocator<_Tp>&) + { std::__uninitialized_default(__first, __last); } + + + // __uninitialized_default_n_a + // Fills [first, first + n) with n default constructed value_types(s), + // constructed with the allocator alloc. + template + _ForwardIterator + __uninitialized_default_n_a(_ForwardIterator __first, _Size __n, + _Allocator& __alloc) + { + _ForwardIterator __cur = __first; + __try + { + typedef __gnu_cxx::__alloc_traits<_Allocator> __traits; + for (; __n > 0; --__n, (void) ++__cur) + __traits::construct(__alloc, std::__addressof(*__cur)); + return __cur; + } + __catch(...) + { + std::_Destroy(__first, __cur, __alloc); + __throw_exception_again; + } + } + + template + inline _ForwardIterator + __uninitialized_default_n_a(_ForwardIterator __first, _Size __n, + allocator<_Tp>&) + { return std::__uninitialized_default_n(__first, __n); } + + template + struct __uninitialized_default_novalue_1 + { + template + static void + __uninit_default_novalue(_ForwardIterator __first, + _ForwardIterator __last) + { + _ForwardIterator __cur = __first; + __try + { + for (; __cur != __last; ++__cur) + std::_Construct_novalue(std::__addressof(*__cur)); + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_default_novalue_1 + { + template + static void + __uninit_default_novalue(_ForwardIterator __first, + _ForwardIterator __last) + { + } + }; + + template + struct __uninitialized_default_novalue_n_1 + { + template + static _ForwardIterator + __uninit_default_novalue_n(_ForwardIterator __first, _Size __n) + { + _ForwardIterator __cur = __first; + __try + { + for (; __n > 0; --__n, (void) ++__cur) + std::_Construct_novalue(std::__addressof(*__cur)); + return __cur; + } + __catch(...) + { + std::_Destroy(__first, __cur); + __throw_exception_again; + } + } + }; + + template<> + struct __uninitialized_default_novalue_n_1 + { + template + static _ForwardIterator + __uninit_default_novalue_n(_ForwardIterator __first, _Size __n) + { return std::next(__first, __n); } + }; + + // __uninitialized_default_novalue + // Fills [first, last) with std::distance(first, last) default-initialized + // value_types(s). + template + inline void + __uninitialized_default_novalue(_ForwardIterator __first, + _ForwardIterator __last) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + + std::__uninitialized_default_novalue_1< + is_trivially_default_constructible<_ValueType>::value>:: + __uninit_default_novalue(__first, __last); + } + + // __uninitialized_default_n + // Fills [first, first + n) with n default-initialized value_type(s). + template + inline _ForwardIterator + __uninitialized_default_novalue_n(_ForwardIterator __first, _Size __n) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType; + + return __uninitialized_default_novalue_n_1< + is_trivially_default_constructible<_ValueType>::value>:: + __uninit_default_novalue_n(__first, __n); + } + + template + _ForwardIterator + __uninitialized_copy_n(_InputIterator __first, _Size __n, + _ForwardIterator __result, input_iterator_tag) + { + _ForwardIterator __cur = __result; + __try + { + for (; __n > 0; --__n, (void) ++__first, ++__cur) + std::_Construct(std::__addressof(*__cur), *__first); + return __cur; + } + __catch(...) + { + std::_Destroy(__result, __cur); + __throw_exception_again; + } + } + + template + inline _ForwardIterator + __uninitialized_copy_n(_RandomAccessIterator __first, _Size __n, + _ForwardIterator __result, + random_access_iterator_tag) + { return std::uninitialized_copy(__first, __first + __n, __result); } + + template + pair<_InputIterator, _ForwardIterator> + __uninitialized_copy_n_pair(_InputIterator __first, _Size __n, + _ForwardIterator __result, input_iterator_tag) + { + _ForwardIterator __cur = __result; + __try + { + for (; __n > 0; --__n, (void) ++__first, ++__cur) + std::_Construct(std::__addressof(*__cur), *__first); + return {__first, __cur}; + } + __catch(...) + { + std::_Destroy(__result, __cur); + __throw_exception_again; + } + } + + template + inline pair<_RandomAccessIterator, _ForwardIterator> + __uninitialized_copy_n_pair(_RandomAccessIterator __first, _Size __n, + _ForwardIterator __result, + random_access_iterator_tag) + { + auto __second_res = uninitialized_copy(__first, __first + __n, __result); + auto __first_res = std::next(__first, __n); + return {__first_res, __second_res}; + } + + /// @endcond + + /** + * @brief Copies the range [first,first+n) into result. + * @param __first An input iterator. + * @param __n The number of elements to copy. + * @param __result An output iterator. + * @return __result + __n + * + * Like copy_n(), but does not require an initialized output range. + */ + template + inline _ForwardIterator + uninitialized_copy_n(_InputIterator __first, _Size __n, + _ForwardIterator __result) + { return std::__uninitialized_copy_n(__first, __n, __result, + std::__iterator_category(__first)); } + + /// @cond undocumented + template + inline pair<_InputIterator, _ForwardIterator> + __uninitialized_copy_n_pair(_InputIterator __first, _Size __n, + _ForwardIterator __result) + { + return + std::__uninitialized_copy_n_pair(__first, __n, __result, + std::__iterator_category(__first)); + } + /// @endcond +#endif + +#if __cplusplus >= 201703L +# define __cpp_lib_raw_memory_algorithms 201606L + + /** + * @brief Default-initializes objects in the range [first,last). + * @param __first A forward iterator. + * @param __last A forward iterator. + */ + template + inline void + uninitialized_default_construct(_ForwardIterator __first, + _ForwardIterator __last) + { + __uninitialized_default_novalue(__first, __last); + } + + /** + * @brief Default-initializes objects in the range [first,first+count). + * @param __first A forward iterator. + * @param __count The number of objects to construct. + * @return __first + __count + */ + template + inline _ForwardIterator + uninitialized_default_construct_n(_ForwardIterator __first, _Size __count) + { + return __uninitialized_default_novalue_n(__first, __count); + } + + /** + * @brief Value-initializes objects in the range [first,last). + * @param __first A forward iterator. + * @param __last A forward iterator. + */ + template + inline void + uninitialized_value_construct(_ForwardIterator __first, + _ForwardIterator __last) + { + return __uninitialized_default(__first, __last); + } + + /** + * @brief Value-initializes objects in the range [first,first+count). + * @param __first A forward iterator. + * @param __count The number of objects to construct. + * @return __result + __count + */ + template + inline _ForwardIterator + uninitialized_value_construct_n(_ForwardIterator __first, _Size __count) + { + return __uninitialized_default_n(__first, __count); + } + + /** + * @brief Move-construct from the range [first,last) into result. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __result An output iterator. + * @return __result + (__first - __last) + */ + template + inline _ForwardIterator + uninitialized_move(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result) + { + return std::uninitialized_copy + (_GLIBCXX_MAKE_MOVE_ITERATOR(__first), + _GLIBCXX_MAKE_MOVE_ITERATOR(__last), __result); + } + + /** + * @brief Move-construct from the range [first,first+count) into result. + * @param __first An input iterator. + * @param __count The number of objects to initialize. + * @param __result An output iterator. + * @return __result + __count + */ + template + inline pair<_InputIterator, _ForwardIterator> + uninitialized_move_n(_InputIterator __first, _Size __count, + _ForwardIterator __result) + { + auto __res = std::__uninitialized_copy_n_pair + (_GLIBCXX_MAKE_MOVE_ITERATOR(__first), + __count, __result); + return {__res.first.base(), __res.second}; + } +#endif // C++17 + +#if __cplusplus >= 201103L + /// @cond undocumented + + template + inline void + __relocate_object_a(_Tp* __restrict __dest, _Up* __restrict __orig, + _Allocator& __alloc) + noexcept(noexcept(std::allocator_traits<_Allocator>::construct(__alloc, + __dest, std::move(*__orig))) + && noexcept(std::allocator_traits<_Allocator>::destroy( + __alloc, std::__addressof(*__orig)))) + { + typedef std::allocator_traits<_Allocator> __traits; + __traits::construct(__alloc, __dest, std::move(*__orig)); + __traits::destroy(__alloc, std::__addressof(*__orig)); + } + + // This class may be specialized for specific types. + // Also known as is_trivially_relocatable. + template + struct __is_bitwise_relocatable + : is_trivial<_Tp> { }; + + template + inline __enable_if_t::value, _Tp*> + __relocate_a_1(_Tp* __first, _Tp* __last, + _Tp* __result, allocator<_Up>&) noexcept + { + ptrdiff_t __count = __last - __first; + if (__count > 0) + __builtin_memmove(__result, __first, __count * sizeof(_Tp)); + return __result + __count; + } + + template + inline _ForwardIterator + __relocate_a_1(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result, _Allocator& __alloc) + noexcept(noexcept(std::__relocate_object_a(std::addressof(*__result), + std::addressof(*__first), + __alloc))) + { + typedef typename iterator_traits<_InputIterator>::value_type + _ValueType; + typedef typename iterator_traits<_ForwardIterator>::value_type + _ValueType2; + static_assert(std::is_same<_ValueType, _ValueType2>::value, + "relocation is only possible for values of the same type"); + _ForwardIterator __cur = __result; + for (; __first != __last; ++__first, (void)++__cur) + std::__relocate_object_a(std::__addressof(*__cur), + std::__addressof(*__first), __alloc); + return __cur; + } + + template + inline _ForwardIterator + __relocate_a(_InputIterator __first, _InputIterator __last, + _ForwardIterator __result, _Allocator& __alloc) + noexcept(noexcept(__relocate_a_1(std::__niter_base(__first), + std::__niter_base(__last), + std::__niter_base(__result), __alloc))) + { + return __relocate_a_1(std::__niter_base(__first), + std::__niter_base(__last), + std::__niter_base(__result), __alloc); + } + + /// @endcond +#endif + + // @} group memory + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _STL_UNINITIALIZED_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/stl_vector.h b/resources/sources/avr-libstdcpp/include/bits/stl_vector.h new file mode 100644 index 000000000..d3f1b1fae --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/stl_vector.h @@ -0,0 +1,1985 @@ +// Vector implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_vector.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{vector} + */ + +#ifndef _STL_VECTOR_H +#define _STL_VECTOR_H 1 + +#include +#include +#include +#if __cplusplus >= 201103L +#include +#endif +#if __cplusplus > 201703L +# include +#endif + +#include + +#if _GLIBCXX_SANITIZE_STD_ALLOCATOR && _GLIBCXX_SANITIZE_VECTOR +extern "C" void +__sanitizer_annotate_contiguous_container(const void*, const void*, + const void*, const void*); +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /// See bits/stl_deque.h's _Deque_base for an explanation. + template + struct _Vector_base + { + typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template + rebind<_Tp>::other _Tp_alloc_type; + typedef typename __gnu_cxx::__alloc_traits<_Tp_alloc_type>::pointer + pointer; + + struct _Vector_impl_data + { + pointer _M_start; + pointer _M_finish; + pointer _M_end_of_storage; + + _Vector_impl_data() _GLIBCXX_NOEXCEPT + : _M_start(), _M_finish(), _M_end_of_storage() + { } + +#if __cplusplus >= 201103L + _Vector_impl_data(_Vector_impl_data&& __x) noexcept + : _M_start(__x._M_start), _M_finish(__x._M_finish), + _M_end_of_storage(__x._M_end_of_storage) + { __x._M_start = __x._M_finish = __x._M_end_of_storage = pointer(); } +#endif + + void + _M_copy_data(_Vector_impl_data const& __x) _GLIBCXX_NOEXCEPT + { + _M_start = __x._M_start; + _M_finish = __x._M_finish; + _M_end_of_storage = __x._M_end_of_storage; + } + + void + _M_swap_data(_Vector_impl_data& __x) _GLIBCXX_NOEXCEPT + { + // Do not use std::swap(_M_start, __x._M_start), etc as it loses + // information used by TBAA. + _Vector_impl_data __tmp; + __tmp._M_copy_data(*this); + _M_copy_data(__x); + __x._M_copy_data(__tmp); + } + }; + + struct _Vector_impl + : public _Tp_alloc_type, public _Vector_impl_data + { + _Vector_impl() _GLIBCXX_NOEXCEPT_IF( + is_nothrow_default_constructible<_Tp_alloc_type>::value) + : _Tp_alloc_type() + { } + + _Vector_impl(_Tp_alloc_type const& __a) _GLIBCXX_NOEXCEPT + : _Tp_alloc_type(__a) + { } + +#if __cplusplus >= 201103L + // Not defaulted, to enforce noexcept(true) even when + // !is_nothrow_move_constructible<_Tp_alloc_type>. + _Vector_impl(_Vector_impl&& __x) noexcept + : _Tp_alloc_type(std::move(__x)), _Vector_impl_data(std::move(__x)) + { } + + _Vector_impl(_Tp_alloc_type&& __a) noexcept + : _Tp_alloc_type(std::move(__a)) + { } + + _Vector_impl(_Tp_alloc_type&& __a, _Vector_impl&& __rv) noexcept + : _Tp_alloc_type(std::move(__a)), _Vector_impl_data(std::move(__rv)) + { } +#endif + +#if _GLIBCXX_SANITIZE_STD_ALLOCATOR && _GLIBCXX_SANITIZE_VECTOR + template + struct _Asan + { + typedef typename __gnu_cxx::__alloc_traits<_Tp_alloc_type> + ::size_type size_type; + + static void _S_shrink(_Vector_impl&, size_type) { } + static void _S_on_dealloc(_Vector_impl&) { } + + typedef _Vector_impl& _Reinit; + + struct _Grow + { + _Grow(_Vector_impl&, size_type) { } + void _M_grew(size_type) { } + }; + }; + + // Enable ASan annotations for memory obtained from std::allocator. + template + struct _Asan > + { + typedef typename __gnu_cxx::__alloc_traits<_Tp_alloc_type> + ::size_type size_type; + + // Adjust ASan annotation for [_M_start, _M_end_of_storage) to + // mark end of valid region as __curr instead of __prev. + static void + _S_adjust(_Vector_impl& __impl, pointer __prev, pointer __curr) + { + __sanitizer_annotate_contiguous_container(__impl._M_start, + __impl._M_end_of_storage, __prev, __curr); + } + + static void + _S_grow(_Vector_impl& __impl, size_type __n) + { _S_adjust(__impl, __impl._M_finish, __impl._M_finish + __n); } + + static void + _S_shrink(_Vector_impl& __impl, size_type __n) + { _S_adjust(__impl, __impl._M_finish + __n, __impl._M_finish); } + + static void + _S_on_dealloc(_Vector_impl& __impl) + { + if (__impl._M_start) + _S_adjust(__impl, __impl._M_finish, __impl._M_end_of_storage); + } + + // Used on reallocation to tell ASan unused capacity is invalid. + struct _Reinit + { + explicit _Reinit(_Vector_impl& __impl) : _M_impl(__impl) + { + // Mark unused capacity as valid again before deallocating it. + _S_on_dealloc(_M_impl); + } + + ~_Reinit() + { + // Mark unused capacity as invalid after reallocation. + if (_M_impl._M_start) + _S_adjust(_M_impl, _M_impl._M_end_of_storage, + _M_impl._M_finish); + } + + _Vector_impl& _M_impl; + +#if __cplusplus >= 201103L + _Reinit(const _Reinit&) = delete; + _Reinit& operator=(const _Reinit&) = delete; +#endif + }; + + // Tell ASan when unused capacity is initialized to be valid. + struct _Grow + { + _Grow(_Vector_impl& __impl, size_type __n) + : _M_impl(__impl), _M_n(__n) + { _S_grow(_M_impl, __n); } + + ~_Grow() { if (_M_n) _S_shrink(_M_impl, _M_n); } + + void _M_grew(size_type __n) { _M_n -= __n; } + +#if __cplusplus >= 201103L + _Grow(const _Grow&) = delete; + _Grow& operator=(const _Grow&) = delete; +#endif + private: + _Vector_impl& _M_impl; + size_type _M_n; + }; + }; + +#define _GLIBCXX_ASAN_ANNOTATE_REINIT \ + typename _Base::_Vector_impl::template _Asan<>::_Reinit const \ + __attribute__((__unused__)) __reinit_guard(this->_M_impl) +#define _GLIBCXX_ASAN_ANNOTATE_GROW(n) \ + typename _Base::_Vector_impl::template _Asan<>::_Grow \ + __attribute__((__unused__)) __grow_guard(this->_M_impl, (n)) +#define _GLIBCXX_ASAN_ANNOTATE_GREW(n) __grow_guard._M_grew(n) +#define _GLIBCXX_ASAN_ANNOTATE_SHRINK(n) \ + _Base::_Vector_impl::template _Asan<>::_S_shrink(this->_M_impl, n) +#define _GLIBCXX_ASAN_ANNOTATE_BEFORE_DEALLOC \ + _Base::_Vector_impl::template _Asan<>::_S_on_dealloc(this->_M_impl) +#else // ! (_GLIBCXX_SANITIZE_STD_ALLOCATOR && _GLIBCXX_SANITIZE_VECTOR) +#define _GLIBCXX_ASAN_ANNOTATE_REINIT +#define _GLIBCXX_ASAN_ANNOTATE_GROW(n) +#define _GLIBCXX_ASAN_ANNOTATE_GREW(n) +#define _GLIBCXX_ASAN_ANNOTATE_SHRINK(n) +#define _GLIBCXX_ASAN_ANNOTATE_BEFORE_DEALLOC +#endif // _GLIBCXX_SANITIZE_STD_ALLOCATOR && _GLIBCXX_SANITIZE_VECTOR + }; + + public: + typedef _Alloc allocator_type; + + _Tp_alloc_type& + _M_get_Tp_allocator() _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + const _Tp_alloc_type& + _M_get_Tp_allocator() const _GLIBCXX_NOEXCEPT + { return this->_M_impl; } + + allocator_type + get_allocator() const _GLIBCXX_NOEXCEPT + { return allocator_type(_M_get_Tp_allocator()); } + +#if __cplusplus >= 201103L + _Vector_base() = default; +#else + _Vector_base() { } +#endif + + _Vector_base(const allocator_type& __a) _GLIBCXX_NOEXCEPT + : _M_impl(__a) { } + + // Kept for ABI compatibility. +#if !_GLIBCXX_INLINE_VERSION + _Vector_base(size_t __n) + : _M_impl() + { _M_create_storage(__n); } +#endif + + _Vector_base(size_t __n, const allocator_type& __a) + : _M_impl(__a) + { _M_create_storage(__n); } + +#if __cplusplus >= 201103L + _Vector_base(_Vector_base&&) = default; + + // Kept for ABI compatibility. +# if !_GLIBCXX_INLINE_VERSION + _Vector_base(_Tp_alloc_type&& __a) noexcept + : _M_impl(std::move(__a)) { } + + _Vector_base(_Vector_base&& __x, const allocator_type& __a) + : _M_impl(__a) + { + if (__x.get_allocator() == __a) + this->_M_impl._M_swap_data(__x._M_impl); + else + { + size_t __n = __x._M_impl._M_finish - __x._M_impl._M_start; + _M_create_storage(__n); + } + } +# endif + + _Vector_base(const allocator_type& __a, _Vector_base&& __x) + : _M_impl(_Tp_alloc_type(__a), std::move(__x._M_impl)) + { } +#endif + + ~_Vector_base() _GLIBCXX_NOEXCEPT + { + _M_deallocate(_M_impl._M_start, + _M_impl._M_end_of_storage - _M_impl._M_start); + } + + public: + _Vector_impl _M_impl; + + pointer + _M_allocate(size_t __n) + { + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Tr; + return __n != 0 ? _Tr::allocate(_M_impl, __n) : pointer(); + } + + void + _M_deallocate(pointer __p, size_t __n) + { + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Tr; + if (__p) + _Tr::deallocate(_M_impl, __p, __n); + } + + protected: + void + _M_create_storage(size_t __n) + { + this->_M_impl._M_start = this->_M_allocate(__n); + this->_M_impl._M_finish = this->_M_impl._M_start; + this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n; + } + }; + + /** + * @brief A standard container which offers fixed time access to + * individual elements in any order. + * + * @ingroup sequences + * + * @tparam _Tp Type of element. + * @tparam _Alloc Allocator type, defaults to allocator<_Tp>. + * + * Meets the requirements of a container, a + * reversible container, and a + * sequence, including the + * optional sequence requirements with the + * %exception of @c push_front and @c pop_front. + * + * In some terminology a %vector can be described as a dynamic + * C-style array, it offers fast and efficient access to individual + * elements in any order and saves the user from worrying about + * memory and size allocation. Subscripting ( @c [] ) access is + * also provided as with C-style arrays. + */ + template > + class vector : protected _Vector_base<_Tp, _Alloc> + { +#ifdef _GLIBCXX_CONCEPT_CHECKS + // Concept requirements. + typedef typename _Alloc::value_type _Alloc_value_type; +# if __cplusplus < 201103L + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) +# endif + __glibcxx_class_requires2(_Tp, _Alloc_value_type, _SameTypeConcept) +#endif + +#if __cplusplus >= 201103L + static_assert(is_same::type, _Tp>::value, + "std::vector must have a non-const, non-volatile value_type"); +# if __cplusplus > 201703L || defined __STRICT_ANSI__ + static_assert(is_same::value, + "std::vector must have the same value_type as its allocator"); +# endif +#endif + + typedef _Vector_base<_Tp, _Alloc> _Base; + typedef typename _Base::_Tp_alloc_type _Tp_alloc_type; + typedef __gnu_cxx::__alloc_traits<_Tp_alloc_type> _Alloc_traits; + + public: + typedef _Tp value_type; + typedef typename _Base::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + typedef __gnu_cxx::__normal_iterator iterator; + typedef __gnu_cxx::__normal_iterator + const_iterator; + typedef std::reverse_iterator const_reverse_iterator; + typedef std::reverse_iterator reverse_iterator; + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef _Alloc allocator_type; + + private: +#if __cplusplus >= 201103L + static constexpr bool + _S_nothrow_relocate(true_type) + { + return noexcept(std::__relocate_a(std::declval(), + std::declval(), + std::declval(), + std::declval<_Tp_alloc_type&>())); + } + + static constexpr bool + _S_nothrow_relocate(false_type) + { return false; } + + static constexpr bool + _S_use_relocate() + { + // Instantiating std::__relocate_a might cause an error outside the + // immediate context (in __relocate_object_a's noexcept-specifier), + // so only do it if we know the type can be move-inserted into *this. + return _S_nothrow_relocate(__is_move_insertable<_Tp_alloc_type>{}); + } + + static pointer + _S_do_relocate(pointer __first, pointer __last, pointer __result, + _Tp_alloc_type& __alloc, true_type) noexcept + { + return std::__relocate_a(__first, __last, __result, __alloc); + } + + static pointer + _S_do_relocate(pointer, pointer, pointer __result, + _Tp_alloc_type&, false_type) noexcept + { return __result; } + + static pointer + _S_relocate(pointer __first, pointer __last, pointer __result, + _Tp_alloc_type& __alloc) noexcept + { + using __do_it = __bool_constant<_S_use_relocate()>; + return _S_do_relocate(__first, __last, __result, __alloc, __do_it{}); + } +#endif // C++11 + + protected: + using _Base::_M_allocate; + using _Base::_M_deallocate; + using _Base::_M_impl; + using _Base::_M_get_Tp_allocator; + + public: + // [23.2.4.1] construct/copy/destroy + // (assign() and get_allocator() are also listed in this section) + + /** + * @brief Creates a %vector with no elements. + */ +#if __cplusplus >= 201103L + vector() = default; +#else + vector() { } +#endif + + /** + * @brief Creates a %vector with no elements. + * @param __a An allocator object. + */ + explicit + vector(const allocator_type& __a) _GLIBCXX_NOEXCEPT + : _Base(__a) { } + +#if __cplusplus >= 201103L + /** + * @brief Creates a %vector with default constructed elements. + * @param __n The number of elements to initially create. + * @param __a An allocator. + * + * This constructor fills the %vector with @a __n default + * constructed elements. + */ + explicit + vector(size_type __n, const allocator_type& __a = allocator_type()) + : _Base(_S_check_init_len(__n, __a), __a) + { _M_default_initialize(__n); } + + /** + * @brief Creates a %vector with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __a An allocator. + * + * This constructor fills the %vector with @a __n copies of @a __value. + */ + vector(size_type __n, const value_type& __value, + const allocator_type& __a = allocator_type()) + : _Base(_S_check_init_len(__n, __a), __a) + { _M_fill_initialize(__n, __value); } +#else + /** + * @brief Creates a %vector with copies of an exemplar element. + * @param __n The number of elements to initially create. + * @param __value An element to copy. + * @param __a An allocator. + * + * This constructor fills the %vector with @a __n copies of @a __value. + */ + explicit + vector(size_type __n, const value_type& __value = value_type(), + const allocator_type& __a = allocator_type()) + : _Base(_S_check_init_len(__n, __a), __a) + { _M_fill_initialize(__n, __value); } +#endif + + /** + * @brief %Vector copy constructor. + * @param __x A %vector of identical element and allocator types. + * + * All the elements of @a __x are copied, but any unused capacity in + * @a __x will not be copied + * (i.e. capacity() == size() in the new %vector). + * + * The newly-created %vector uses a copy of the allocator object used + * by @a __x (unless the allocator traits dictate a different object). + */ + vector(const vector& __x) + : _Base(__x.size(), + _Alloc_traits::_S_select_on_copy(__x._M_get_Tp_allocator())) + { + this->_M_impl._M_finish = + std::__uninitialized_copy_a(__x.begin(), __x.end(), + this->_M_impl._M_start, + _M_get_Tp_allocator()); + } + +#if __cplusplus >= 201103L + /** + * @brief %Vector move constructor. + * + * The newly-created %vector contains the exact contents of the + * moved instance. + * The contents of the moved instance are a valid, but unspecified + * %vector. + */ + vector(vector&&) noexcept = default; + + /// Copy constructor with alternative allocator + vector(const vector& __x, const allocator_type& __a) + : _Base(__x.size(), __a) + { + this->_M_impl._M_finish = + std::__uninitialized_copy_a(__x.begin(), __x.end(), + this->_M_impl._M_start, + _M_get_Tp_allocator()); + } + + private: + vector(vector&& __rv, const allocator_type& __m, true_type) noexcept + : _Base(__m, std::move(__rv)) + { } + + vector(vector&& __rv, const allocator_type& __m, false_type) + : _Base(__m) + { + if (__rv.get_allocator() == __m) + this->_M_impl._M_swap_data(__rv._M_impl); + else if (!__rv.empty()) + { + this->_M_create_storage(__rv.size()); + this->_M_impl._M_finish = + std::__uninitialized_move_a(__rv.begin(), __rv.end(), + this->_M_impl._M_start, + _M_get_Tp_allocator()); + __rv.clear(); + } + } + + public: + /// Move constructor with alternative allocator + vector(vector&& __rv, const allocator_type& __m) + noexcept( noexcept( + vector(std::declval(), std::declval(), + std::declval())) ) + : vector(std::move(__rv), __m, typename _Alloc_traits::is_always_equal{}) + { } + + /** + * @brief Builds a %vector from an initializer list. + * @param __l An initializer_list. + * @param __a An allocator. + * + * Create a %vector consisting of copies of the elements in the + * initializer_list @a __l. + * + * This will call the element type's copy constructor N times + * (where N is @a __l.size()) and do no memory reallocation. + */ + vector(initializer_list __l, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + _M_range_initialize(__l.begin(), __l.end(), + random_access_iterator_tag()); + } +#endif + + /** + * @brief Builds a %vector from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __a An allocator. + * + * Create a %vector consisting of copies of the elements from + * [first,last). + * + * If the iterators are forward, bidirectional, or + * random-access, then this will call the elements' copy + * constructor N times (where N is distance(first,last)) and do + * no memory reallocation. But if only input iterators are + * used, then this will do at most 2N calls to the copy + * constructor, and logN memory reallocations. + */ +#if __cplusplus >= 201103L + template> + vector(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + _M_range_initialize(__first, __last, + std::__iterator_category(__first)); + } +#else + template + vector(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_initialize_dispatch(__first, __last, _Integral()); + } +#endif + + /** + * The dtor only erases the elements, and note that if the + * elements themselves are pointers, the pointed-to memory is + * not touched in any way. Managing the pointer is the user's + * responsibility. + */ + ~vector() _GLIBCXX_NOEXCEPT + { + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_BEFORE_DEALLOC; + } + + /** + * @brief %Vector assignment operator. + * @param __x A %vector of identical element and allocator types. + * + * All the elements of @a __x are copied, but any unused capacity in + * @a __x will not be copied. + * + * Whether the allocator is copied depends on the allocator traits. + */ + vector& + operator=(const vector& __x); + +#if __cplusplus >= 201103L + /** + * @brief %Vector move assignment operator. + * @param __x A %vector of identical element and allocator types. + * + * The contents of @a __x are moved into this %vector (without copying, + * if the allocators permit it). + * Afterwards @a __x is a valid, but unspecified %vector. + * + * Whether the allocator is moved depends on the allocator traits. + */ + vector& + operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move()) + { + constexpr bool __move_storage = + _Alloc_traits::_S_propagate_on_move_assign() + || _Alloc_traits::_S_always_equal(); + _M_move_assign(std::move(__x), __bool_constant<__move_storage>()); + return *this; + } + + /** + * @brief %Vector list assignment operator. + * @param __l An initializer_list. + * + * This function fills a %vector with copies of the elements in the + * initializer list @a __l. + * + * Note that the assignment completely changes the %vector and + * that the resulting %vector's size is the same as the number + * of elements assigned. + */ + vector& + operator=(initializer_list __l) + { + this->_M_assign_aux(__l.begin(), __l.end(), + random_access_iterator_tag()); + return *this; + } +#endif + + /** + * @brief Assigns a given value to a %vector. + * @param __n Number of elements to be assigned. + * @param __val Value to be assigned. + * + * This function fills a %vector with @a __n copies of the given + * value. Note that the assignment completely changes the + * %vector and that the resulting %vector's size is the same as + * the number of elements assigned. + */ + void + assign(size_type __n, const value_type& __val) + { _M_fill_assign(__n, __val); } + + /** + * @brief Assigns a range to a %vector. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function fills a %vector with copies of the elements in the + * range [__first,__last). + * + * Note that the assignment completely changes the %vector and + * that the resulting %vector's size is the same as the number + * of elements assigned. + */ +#if __cplusplus >= 201103L + template> + void + assign(_InputIterator __first, _InputIterator __last) + { _M_assign_dispatch(__first, __last, __false_type()); } +#else + template + void + assign(_InputIterator __first, _InputIterator __last) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_assign_dispatch(__first, __last, _Integral()); + } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Assigns an initializer list to a %vector. + * @param __l An initializer_list. + * + * This function fills a %vector with copies of the elements in the + * initializer list @a __l. + * + * Note that the assignment completely changes the %vector and + * that the resulting %vector's size is the same as the number + * of elements assigned. + */ + void + assign(initializer_list __l) + { + this->_M_assign_aux(__l.begin(), __l.end(), + random_access_iterator_tag()); + } +#endif + + /// Get a copy of the memory allocation object. + using _Base::get_allocator; + + // iterators + /** + * Returns a read/write iterator that points to the first + * element in the %vector. Iteration is done in ordinary + * element order. + */ + iterator + begin() _GLIBCXX_NOEXCEPT + { return iterator(this->_M_impl._M_start); } + + /** + * Returns a read-only (constant) iterator that points to the + * first element in the %vector. Iteration is done in ordinary + * element order. + */ + const_iterator + begin() const _GLIBCXX_NOEXCEPT + { return const_iterator(this->_M_impl._M_start); } + + /** + * Returns a read/write iterator that points one past the last + * element in the %vector. Iteration is done in ordinary + * element order. + */ + iterator + end() _GLIBCXX_NOEXCEPT + { return iterator(this->_M_impl._M_finish); } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %vector. Iteration is done in + * ordinary element order. + */ + const_iterator + end() const _GLIBCXX_NOEXCEPT + { return const_iterator(this->_M_impl._M_finish); } + + /** + * Returns a read/write reverse iterator that points to the + * last element in the %vector. Iteration is done in reverse + * element order. + */ + reverse_iterator + rbegin() _GLIBCXX_NOEXCEPT + { return reverse_iterator(end()); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to the last element in the %vector. Iteration is done in + * reverse element order. + */ + const_reverse_iterator + rbegin() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(end()); } + + /** + * Returns a read/write reverse iterator that points to one + * before the first element in the %vector. Iteration is done + * in reverse element order. + */ + reverse_iterator + rend() _GLIBCXX_NOEXCEPT + { return reverse_iterator(begin()); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to one before the first element in the %vector. Iteration + * is done in reverse element order. + */ + const_reverse_iterator + rend() const _GLIBCXX_NOEXCEPT + { return const_reverse_iterator(begin()); } + +#if __cplusplus >= 201103L + /** + * Returns a read-only (constant) iterator that points to the + * first element in the %vector. Iteration is done in ordinary + * element order. + */ + const_iterator + cbegin() const noexcept + { return const_iterator(this->_M_impl._M_start); } + + /** + * Returns a read-only (constant) iterator that points one past + * the last element in the %vector. Iteration is done in + * ordinary element order. + */ + const_iterator + cend() const noexcept + { return const_iterator(this->_M_impl._M_finish); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to the last element in the %vector. Iteration is done in + * reverse element order. + */ + const_reverse_iterator + crbegin() const noexcept + { return const_reverse_iterator(end()); } + + /** + * Returns a read-only (constant) reverse iterator that points + * to one before the first element in the %vector. Iteration + * is done in reverse element order. + */ + const_reverse_iterator + crend() const noexcept + { return const_reverse_iterator(begin()); } +#endif + + // [23.2.4.2] capacity + /** Returns the number of elements in the %vector. */ + size_type + size() const _GLIBCXX_NOEXCEPT + { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); } + + /** Returns the size() of the largest possible %vector. */ + size_type + max_size() const _GLIBCXX_NOEXCEPT + { return _S_max_size(_M_get_Tp_allocator()); } + +#if __cplusplus >= 201103L + /** + * @brief Resizes the %vector to the specified number of elements. + * @param __new_size Number of elements the %vector should contain. + * + * This function will %resize the %vector to the specified + * number of elements. If the number is smaller than the + * %vector's current size the %vector is truncated, otherwise + * default constructed elements are appended. + */ + void + resize(size_type __new_size) + { + if (__new_size > size()) + _M_default_append(__new_size - size()); + else if (__new_size < size()) + _M_erase_at_end(this->_M_impl._M_start + __new_size); + } + + /** + * @brief Resizes the %vector to the specified number of elements. + * @param __new_size Number of elements the %vector should contain. + * @param __x Data with which new elements should be populated. + * + * This function will %resize the %vector to the specified + * number of elements. If the number is smaller than the + * %vector's current size the %vector is truncated, otherwise + * the %vector is extended and new elements are populated with + * given data. + */ + void + resize(size_type __new_size, const value_type& __x) + { + if (__new_size > size()) + _M_fill_insert(end(), __new_size - size(), __x); + else if (__new_size < size()) + _M_erase_at_end(this->_M_impl._M_start + __new_size); + } +#else + /** + * @brief Resizes the %vector to the specified number of elements. + * @param __new_size Number of elements the %vector should contain. + * @param __x Data with which new elements should be populated. + * + * This function will %resize the %vector to the specified + * number of elements. If the number is smaller than the + * %vector's current size the %vector is truncated, otherwise + * the %vector is extended and new elements are populated with + * given data. + */ + void + resize(size_type __new_size, value_type __x = value_type()) + { + if (__new_size > size()) + _M_fill_insert(end(), __new_size - size(), __x); + else if (__new_size < size()) + _M_erase_at_end(this->_M_impl._M_start + __new_size); + } +#endif + +#if __cplusplus >= 201103L + /** A non-binding request to reduce capacity() to size(). */ + void + shrink_to_fit() + { _M_shrink_to_fit(); } +#endif + + /** + * Returns the total number of elements that the %vector can + * hold before needing to allocate more memory. + */ + size_type + capacity() const _GLIBCXX_NOEXCEPT + { return size_type(this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); } + + /** + * Returns true if the %vector is empty. (Thus begin() would + * equal end().) + */ + _GLIBCXX_NODISCARD bool + empty() const _GLIBCXX_NOEXCEPT + { return begin() == end(); } + + /** + * @brief Attempt to preallocate enough memory for specified number of + * elements. + * @param __n Number of elements required. + * @throw std::length_error If @a n exceeds @c max_size(). + * + * This function attempts to reserve enough memory for the + * %vector to hold the specified number of elements. If the + * number requested is more than max_size(), length_error is + * thrown. + * + * The advantage of this function is that if optimal code is a + * necessity and the user can determine the number of elements + * that will be required, the user can reserve the memory in + * %advance, and thus prevent a possible reallocation of memory + * and copying of %vector data. + */ + void + reserve(size_type __n); + + // element access + /** + * @brief Subscript access to the data contained in the %vector. + * @param __n The index of the element for which data should be + * accessed. + * @return Read/write reference to data. + * + * This operator allows for easy, array-style, data access. + * Note that data access with this operator is unchecked and + * out_of_range lookups are not defined. (For checked lookups + * see at().) + */ + reference + operator[](size_type __n) _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_subscript(__n); + return *(this->_M_impl._M_start + __n); + } + + /** + * @brief Subscript access to the data contained in the %vector. + * @param __n The index of the element for which data should be + * accessed. + * @return Read-only (constant) reference to data. + * + * This operator allows for easy, array-style, data access. + * Note that data access with this operator is unchecked and + * out_of_range lookups are not defined. (For checked lookups + * see at().) + */ + const_reference + operator[](size_type __n) const _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_subscript(__n); + return *(this->_M_impl._M_start + __n); + } + + protected: + /// Safety check used only from at(). + void + _M_range_check(size_type __n) const + { + if (__n >= this->size()) + __throw_out_of_range_fmt(__N("vector::_M_range_check: __n " + "(which is %zu) >= this->size() " + "(which is %zu)"), + __n, this->size()); + } + + public: + /** + * @brief Provides access to the data contained in the %vector. + * @param __n The index of the element for which data should be + * accessed. + * @return Read/write reference to data. + * @throw std::out_of_range If @a __n is an invalid index. + * + * This function provides for safer data access. The parameter + * is first checked that it is in the range of the vector. The + * function throws out_of_range if the check fails. + */ + reference + at(size_type __n) + { + _M_range_check(__n); + return (*this)[__n]; + } + + /** + * @brief Provides access to the data contained in the %vector. + * @param __n The index of the element for which data should be + * accessed. + * @return Read-only (constant) reference to data. + * @throw std::out_of_range If @a __n is an invalid index. + * + * This function provides for safer data access. The parameter + * is first checked that it is in the range of the vector. The + * function throws out_of_range if the check fails. + */ + const_reference + at(size_type __n) const + { + _M_range_check(__n); + return (*this)[__n]; + } + + /** + * Returns a read/write reference to the data at the first + * element of the %vector. + */ + reference + front() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + return *begin(); + } + + /** + * Returns a read-only (constant) reference to the data at the first + * element of the %vector. + */ + const_reference + front() const _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + return *begin(); + } + + /** + * Returns a read/write reference to the data at the last + * element of the %vector. + */ + reference + back() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + return *(end() - 1); + } + + /** + * Returns a read-only (constant) reference to the data at the + * last element of the %vector. + */ + const_reference + back() const _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + return *(end() - 1); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 464. Suggestion for new member functions in standard containers. + // data access + /** + * Returns a pointer such that [data(), data() + size()) is a valid + * range. For a non-empty %vector, data() == &front(). + */ + _Tp* + data() _GLIBCXX_NOEXCEPT + { return _M_data_ptr(this->_M_impl._M_start); } + + const _Tp* + data() const _GLIBCXX_NOEXCEPT + { return _M_data_ptr(this->_M_impl._M_start); } + + // [23.2.4.3] modifiers + /** + * @brief Add data to the end of the %vector. + * @param __x Data to be added. + * + * This is a typical stack operation. The function creates an + * element at the end of the %vector and assigns the given data + * to it. Due to the nature of a %vector this operation can be + * done in constant time if the %vector has preallocated space + * available. + */ + void + push_back(const value_type& __x) + { + if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(1); + _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish, + __x); + ++this->_M_impl._M_finish; + _GLIBCXX_ASAN_ANNOTATE_GREW(1); + } + else + _M_realloc_insert(end(), __x); + } + +#if __cplusplus >= 201103L + void + push_back(value_type&& __x) + { emplace_back(std::move(__x)); } + + template +#if __cplusplus > 201402L + reference +#else + void +#endif + emplace_back(_Args&&... __args); +#endif + + /** + * @brief Removes last element. + * + * This is a typical stack operation. It shrinks the %vector by one. + * + * Note that no data is returned, and if the last element's + * data is needed, it should be retrieved before pop_back() is + * called. + */ + void + pop_back() _GLIBCXX_NOEXCEPT + { + __glibcxx_requires_nonempty(); + --this->_M_impl._M_finish; + _Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish); + _GLIBCXX_ASAN_ANNOTATE_SHRINK(1); + } + +#if __cplusplus >= 201103L + /** + * @brief Inserts an object in %vector before specified iterator. + * @param __position A const_iterator into the %vector. + * @param __args Arguments. + * @return An iterator that points to the inserted data. + * + * This function will insert an object of type T constructed + * with T(std::forward(args)...) before the specified location. + * Note that this kind of operation could be expensive for a %vector + * and if it is frequently used the user should consider using + * std::list. + */ + template + iterator + emplace(const_iterator __position, _Args&&... __args) + { return _M_emplace_aux(__position, std::forward<_Args>(__args)...); } + + /** + * @brief Inserts given value into %vector before specified iterator. + * @param __position A const_iterator into the %vector. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value before + * the specified location. Note that this kind of operation + * could be expensive for a %vector and if it is frequently + * used the user should consider using std::list. + */ + iterator + insert(const_iterator __position, const value_type& __x); +#else + /** + * @brief Inserts given value into %vector before specified iterator. + * @param __position An iterator into the %vector. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given value before + * the specified location. Note that this kind of operation + * could be expensive for a %vector and if it is frequently + * used the user should consider using std::list. + */ + iterator + insert(iterator __position, const value_type& __x); +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts given rvalue into %vector before specified iterator. + * @param __position A const_iterator into the %vector. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a copy of the given rvalue before + * the specified location. Note that this kind of operation + * could be expensive for a %vector and if it is frequently + * used the user should consider using std::list. + */ + iterator + insert(const_iterator __position, value_type&& __x) + { return _M_insert_rval(__position, std::move(__x)); } + + /** + * @brief Inserts an initializer_list into the %vector. + * @param __position An iterator into the %vector. + * @param __l An initializer_list. + * + * This function will insert copies of the data in the + * initializer_list @a l into the %vector before the location + * specified by @a position. + * + * Note that this kind of operation could be expensive for a + * %vector and if it is frequently used the user should + * consider using std::list. + */ + iterator + insert(const_iterator __position, initializer_list __l) + { + auto __offset = __position - cbegin(); + _M_range_insert(begin() + __offset, __l.begin(), __l.end(), + std::random_access_iterator_tag()); + return begin() + __offset; + } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts a number of copies of given data into the %vector. + * @param __position A const_iterator into the %vector. + * @param __n Number of elements to be inserted. + * @param __x Data to be inserted. + * @return An iterator that points to the inserted data. + * + * This function will insert a specified number of copies of + * the given data before the location specified by @a position. + * + * Note that this kind of operation could be expensive for a + * %vector and if it is frequently used the user should + * consider using std::list. + */ + iterator + insert(const_iterator __position, size_type __n, const value_type& __x) + { + difference_type __offset = __position - cbegin(); + _M_fill_insert(begin() + __offset, __n, __x); + return begin() + __offset; + } +#else + /** + * @brief Inserts a number of copies of given data into the %vector. + * @param __position An iterator into the %vector. + * @param __n Number of elements to be inserted. + * @param __x Data to be inserted. + * + * This function will insert a specified number of copies of + * the given data before the location specified by @a position. + * + * Note that this kind of operation could be expensive for a + * %vector and if it is frequently used the user should + * consider using std::list. + */ + void + insert(iterator __position, size_type __n, const value_type& __x) + { _M_fill_insert(__position, __n, __x); } +#endif + +#if __cplusplus >= 201103L + /** + * @brief Inserts a range into the %vector. + * @param __position A const_iterator into the %vector. + * @param __first An input iterator. + * @param __last An input iterator. + * @return An iterator that points to the inserted data. + * + * This function will insert copies of the data in the range + * [__first,__last) into the %vector before the location specified + * by @a pos. + * + * Note that this kind of operation could be expensive for a + * %vector and if it is frequently used the user should + * consider using std::list. + */ + template> + iterator + insert(const_iterator __position, _InputIterator __first, + _InputIterator __last) + { + difference_type __offset = __position - cbegin(); + _M_insert_dispatch(begin() + __offset, + __first, __last, __false_type()); + return begin() + __offset; + } +#else + /** + * @brief Inserts a range into the %vector. + * @param __position An iterator into the %vector. + * @param __first An input iterator. + * @param __last An input iterator. + * + * This function will insert copies of the data in the range + * [__first,__last) into the %vector before the location specified + * by @a pos. + * + * Note that this kind of operation could be expensive for a + * %vector and if it is frequently used the user should + * consider using std::list. + */ + template + void + insert(iterator __position, _InputIterator __first, + _InputIterator __last) + { + // Check whether it's an integral type. If so, it's not an iterator. + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_insert_dispatch(__position, __first, __last, _Integral()); + } +#endif + + /** + * @brief Remove element at given position. + * @param __position Iterator pointing to element to be erased. + * @return An iterator pointing to the next element (or end()). + * + * This function will erase the element at the given position and thus + * shorten the %vector by one. + * + * Note This operation could be expensive and if it is + * frequently used the user should consider using std::list. + * The user is also cautioned that this function only erases + * the element, and that if the element is itself a pointer, + * the pointed-to memory is not touched in any way. Managing + * the pointer is the user's responsibility. + */ + iterator +#if __cplusplus >= 201103L + erase(const_iterator __position) + { return _M_erase(begin() + (__position - cbegin())); } +#else + erase(iterator __position) + { return _M_erase(__position); } +#endif + + /** + * @brief Remove a range of elements. + * @param __first Iterator pointing to the first element to be erased. + * @param __last Iterator pointing to one past the last element to be + * erased. + * @return An iterator pointing to the element pointed to by @a __last + * prior to erasing (or end()). + * + * This function will erase the elements in the range + * [__first,__last) and shorten the %vector accordingly. + * + * Note This operation could be expensive and if it is + * frequently used the user should consider using std::list. + * The user is also cautioned that this function only erases + * the elements, and that if the elements themselves are + * pointers, the pointed-to memory is not touched in any way. + * Managing the pointer is the user's responsibility. + */ + iterator +#if __cplusplus >= 201103L + erase(const_iterator __first, const_iterator __last) + { + const auto __beg = begin(); + const auto __cbeg = cbegin(); + return _M_erase(__beg + (__first - __cbeg), __beg + (__last - __cbeg)); + } +#else + erase(iterator __first, iterator __last) + { return _M_erase(__first, __last); } +#endif + + /** + * @brief Swaps data with another %vector. + * @param __x A %vector of the same element and allocator types. + * + * This exchanges the elements between two vectors in constant time. + * (Three pointers, so it should be quite fast.) + * Note that the global std::swap() function is specialized such that + * std::swap(v1,v2) will feed to this function. + * + * Whether the allocators are swapped depends on the allocator traits. + */ + void + swap(vector& __x) _GLIBCXX_NOEXCEPT + { +#if __cplusplus >= 201103L + __glibcxx_assert(_Alloc_traits::propagate_on_container_swap::value + || _M_get_Tp_allocator() == __x._M_get_Tp_allocator()); +#endif + this->_M_impl._M_swap_data(__x._M_impl); + _Alloc_traits::_S_on_swap(_M_get_Tp_allocator(), + __x._M_get_Tp_allocator()); + } + + /** + * Erases all the elements. Note that this function only erases the + * elements, and that if the elements themselves are pointers, the + * pointed-to memory is not touched in any way. Managing the pointer is + * the user's responsibility. + */ + void + clear() _GLIBCXX_NOEXCEPT + { _M_erase_at_end(this->_M_impl._M_start); } + + protected: + /** + * Memory expansion handler. Uses the member allocation function to + * obtain @a n bytes of memory, and then copies [first,last) into it. + */ + template + pointer + _M_allocate_and_copy(size_type __n, + _ForwardIterator __first, _ForwardIterator __last) + { + pointer __result = this->_M_allocate(__n); + __try + { + std::__uninitialized_copy_a(__first, __last, __result, + _M_get_Tp_allocator()); + return __result; + } + __catch(...) + { + _M_deallocate(__result, __n); + __throw_exception_again; + } + } + + + // Internal constructor functions follow. + + // Called by the range constructor to implement [23.1.1]/9 + +#if __cplusplus < 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_initialize_dispatch(_Integer __n, _Integer __value, __true_type) + { + this->_M_impl._M_start = _M_allocate(_S_check_init_len( + static_cast(__n), _M_get_Tp_allocator())); + this->_M_impl._M_end_of_storage = + this->_M_impl._M_start + static_cast(__n); + _M_fill_initialize(static_cast(__n), __value); + } + + // Called by the range constructor to implement [23.1.1]/9 + template + void + _M_initialize_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { + _M_range_initialize(__first, __last, + std::__iterator_category(__first)); + } +#endif + + // Called by the second initialize_dispatch above + template + void + _M_range_initialize(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + __try { + for (; __first != __last; ++__first) +#if __cplusplus >= 201103L + emplace_back(*__first); +#else + push_back(*__first); +#endif + } __catch(...) { + clear(); + __throw_exception_again; + } + } + + // Called by the second initialize_dispatch above + template + void + _M_range_initialize(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __n = std::distance(__first, __last); + this->_M_impl._M_start + = this->_M_allocate(_S_check_init_len(__n, _M_get_Tp_allocator())); + this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n; + this->_M_impl._M_finish = + std::__uninitialized_copy_a(__first, __last, + this->_M_impl._M_start, + _M_get_Tp_allocator()); + } + + // Called by the first initialize_dispatch above and by the + // vector(n,value,a) constructor. + void + _M_fill_initialize(size_type __n, const value_type& __value) + { + this->_M_impl._M_finish = + std::__uninitialized_fill_n_a(this->_M_impl._M_start, __n, __value, + _M_get_Tp_allocator()); + } + +#if __cplusplus >= 201103L + // Called by the vector(n) constructor. + void + _M_default_initialize(size_type __n) + { + this->_M_impl._M_finish = + std::__uninitialized_default_n_a(this->_M_impl._M_start, __n, + _M_get_Tp_allocator()); + } +#endif + + // Internal assign functions follow. The *_aux functions do the actual + // assignment work for the range versions. + + // Called by the range assign to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_assign_dispatch(_Integer __n, _Integer __val, __true_type) + { _M_fill_assign(__n, __val); } + + // Called by the range assign to implement [23.1.1]/9 + template + void + _M_assign_dispatch(_InputIterator __first, _InputIterator __last, + __false_type) + { _M_assign_aux(__first, __last, std::__iterator_category(__first)); } + + // Called by the second assign_dispatch above + template + void + _M_assign_aux(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag); + + // Called by the second assign_dispatch above + template + void + _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag); + + // Called by assign(n,t), and the range assign when it turns out + // to be the same thing. + void + _M_fill_assign(size_type __n, const value_type& __val); + + // Internal insert functions follow. + + // Called by the range insert to implement [23.1.1]/9 + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 438. Ambiguity in the "do the right thing" clause + template + void + _M_insert_dispatch(iterator __pos, _Integer __n, _Integer __val, + __true_type) + { _M_fill_insert(__pos, __n, __val); } + + // Called by the range insert to implement [23.1.1]/9 + template + void + _M_insert_dispatch(iterator __pos, _InputIterator __first, + _InputIterator __last, __false_type) + { + _M_range_insert(__pos, __first, __last, + std::__iterator_category(__first)); + } + + // Called by the second insert_dispatch above + template + void + _M_range_insert(iterator __pos, _InputIterator __first, + _InputIterator __last, std::input_iterator_tag); + + // Called by the second insert_dispatch above + template + void + _M_range_insert(iterator __pos, _ForwardIterator __first, + _ForwardIterator __last, std::forward_iterator_tag); + + // Called by insert(p,n,x), and the range insert when it turns out to be + // the same thing. + void + _M_fill_insert(iterator __pos, size_type __n, const value_type& __x); + +#if __cplusplus >= 201103L + // Called by resize(n). + void + _M_default_append(size_type __n); + + bool + _M_shrink_to_fit(); +#endif + +#if __cplusplus < 201103L + // Called by insert(p,x) + void + _M_insert_aux(iterator __position, const value_type& __x); + + void + _M_realloc_insert(iterator __position, const value_type& __x); +#else + // A value_type object constructed with _Alloc_traits::construct() + // and destroyed with _Alloc_traits::destroy(). + struct _Temporary_value + { + template + explicit + _Temporary_value(vector* __vec, _Args&&... __args) : _M_this(__vec) + { + _Alloc_traits::construct(_M_this->_M_impl, _M_ptr(), + std::forward<_Args>(__args)...); + } + + ~_Temporary_value() + { _Alloc_traits::destroy(_M_this->_M_impl, _M_ptr()); } + + value_type& + _M_val() { return *_M_ptr(); } + + private: + _Tp* + _M_ptr() { return reinterpret_cast<_Tp*>(&__buf); } + + vector* _M_this; + typename aligned_storage::type __buf; + }; + + // Called by insert(p,x) and other functions when insertion needs to + // reallocate or move existing elements. _Arg is either _Tp& or _Tp. + template + void + _M_insert_aux(iterator __position, _Arg&& __arg); + + template + void + _M_realloc_insert(iterator __position, _Args&&... __args); + + // Either move-construct at the end, or forward to _M_insert_aux. + iterator + _M_insert_rval(const_iterator __position, value_type&& __v); + + // Try to emplace at the end, otherwise forward to _M_insert_aux. + template + iterator + _M_emplace_aux(const_iterator __position, _Args&&... __args); + + // Emplacing an rvalue of the correct type can use _M_insert_rval. + iterator + _M_emplace_aux(const_iterator __position, value_type&& __v) + { return _M_insert_rval(__position, std::move(__v)); } +#endif + + // Called by _M_fill_insert, _M_insert_aux etc. + size_type + _M_check_len(size_type __n, const char* __s) const + { + if (max_size() - size() < __n) + __throw_length_error(__N(__s)); + + const size_type __len = size() + (std::max)(size(), __n); + return (__len < size() || __len > max_size()) ? max_size() : __len; + } + + // Called by constructors to check initial size. + static size_type + _S_check_init_len(size_type __n, const allocator_type& __a) + { + if (__n > _S_max_size(_Tp_alloc_type(__a))) + __throw_length_error( + __N("cannot create std::vector larger than max_size()")); + return __n; + } + + static size_type + _S_max_size(const _Tp_alloc_type& __a) _GLIBCXX_NOEXCEPT + { + // std::distance(begin(), end()) cannot be greater than PTRDIFF_MAX, + // and realistically we can't store more than PTRDIFF_MAX/sizeof(T) + // (even if std::allocator_traits::max_size says we can). + const size_t __diffmax + = __gnu_cxx::__numeric_traits::__max / sizeof(_Tp); + const size_t __allocmax = _Alloc_traits::max_size(__a); + return (std::min)(__diffmax, __allocmax); + } + + // Internal erase functions follow. + + // Called by erase(q1,q2), clear(), resize(), _M_fill_assign, + // _M_assign_aux. + void + _M_erase_at_end(pointer __pos) _GLIBCXX_NOEXCEPT + { + if (size_type __n = this->_M_impl._M_finish - __pos) + { + std::_Destroy(__pos, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish = __pos; + _GLIBCXX_ASAN_ANNOTATE_SHRINK(__n); + } + } + + iterator + _M_erase(iterator __position); + + iterator + _M_erase(iterator __first, iterator __last); + +#if __cplusplus >= 201103L + private: + // Constant-time move assignment when source object's memory can be + // moved, either because the source's allocator will move too + // or because the allocators are equal. + void + _M_move_assign(vector&& __x, true_type) noexcept + { + vector __tmp(get_allocator()); + this->_M_impl._M_swap_data(__x._M_impl); + __tmp._M_impl._M_swap_data(__x._M_impl); + std::__alloc_on_move(_M_get_Tp_allocator(), __x._M_get_Tp_allocator()); + } + + // Do move assignment when it might not be possible to move source + // object's memory, resulting in a linear-time operation. + void + _M_move_assign(vector&& __x, false_type) + { + if (__x._M_get_Tp_allocator() == this->_M_get_Tp_allocator()) + _M_move_assign(std::move(__x), true_type()); + else + { + // The rvalue's allocator cannot be moved and is not equal, + // so we need to individually move each element. + this->_M_assign_aux(std::make_move_iterator(__x.begin()), + std::make_move_iterator(__x.end()), + std::random_access_iterator_tag()); + __x.clear(); + } + } +#endif + + template + _Up* + _M_data_ptr(_Up* __ptr) const _GLIBCXX_NOEXCEPT + { return __ptr; } + +#if __cplusplus >= 201103L + template + typename std::pointer_traits<_Ptr>::element_type* + _M_data_ptr(_Ptr __ptr) const + { return empty() ? nullptr : std::__to_address(__ptr); } +#else + template + _Up* + _M_data_ptr(_Up* __ptr) _GLIBCXX_NOEXCEPT + { return __ptr; } + + template + value_type* + _M_data_ptr(_Ptr __ptr) + { return empty() ? (value_type*)0 : __ptr.operator->(); } + + template + const value_type* + _M_data_ptr(_Ptr __ptr) const + { return empty() ? (const value_type*)0 : __ptr.operator->(); } +#endif + }; + +#if __cpp_deduction_guides >= 201606 + template::value_type, + typename _Allocator = allocator<_ValT>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireAllocator<_Allocator>> + vector(_InputIterator, _InputIterator, _Allocator = _Allocator()) + -> vector<_ValT, _Allocator>; +#endif + + /** + * @brief Vector equality comparison. + * @param __x A %vector. + * @param __y A %vector of the same type as @a __x. + * @return True iff the size and elements of the vectors are equal. + * + * This is an equivalence relation. It is linear in the size of the + * vectors. Vectors are considered equivalent if their sizes are equal, + * and if corresponding elements compare equal. + */ + template + inline bool + operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { return (__x.size() == __y.size() + && std::equal(__x.begin(), __x.end(), __y.begin())); } + +#if __cpp_lib_three_way_comparison + /** + * @brief Vector ordering relation. + * @param __x A `vector`. + * @param __y A `vector` of the same type as `__x`. + * @return A value indicating whether `__x` is less than, equal to, + * greater than, or incomparable with `__y`. + * + * See `std::lexicographical_compare_three_way()` for how the determination + * is made. This operator is used to synthesize relational operators like + * `<` and `>=` etc. + */ + template + inline __detail::__synth3way_t<_Tp> + operator<=>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { + return std::lexicographical_compare_three_way(__x.begin(), __x.end(), + __y.begin(), __y.end(), + __detail::__synth3way); + } +#else + /** + * @brief Vector ordering relation. + * @param __x A %vector. + * @param __y A %vector of the same type as @a __x. + * @return True iff @a __x is lexicographically less than @a __y. + * + * This is a total ordering relation. It is linear in the size of the + * vectors. The elements must be comparable with @c <. + * + * See std::lexicographical_compare() for how the determination is made. + */ + template + inline bool + operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { return std::lexicographical_compare(__x.begin(), __x.end(), + __y.begin(), __y.end()); } + + /// Based on operator== + template + inline bool + operator!=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { return !(__x == __y); } + + /// Based on operator< + template + inline bool + operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { return __y < __x; } + + /// Based on operator< + template + inline bool + operator<=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { return !(__y < __x); } + + /// Based on operator< + template + inline bool + operator>=(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) + { return !(__x < __y); } +#endif // three-way comparison + + /// See std::vector::swap(). + template + inline void + swap(vector<_Tp, _Alloc>& __x, vector<_Tp, _Alloc>& __y) + _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus >= 201703L + namespace __detail::__variant + { + template struct _Never_valueless_alt; // see + + // Provide the strong exception-safety guarantee when emplacing a + // vector into a variant, but only if move assignment cannot throw. + template + struct _Never_valueless_alt<_GLIBCXX_STD_C::vector<_Tp, _Alloc>> + : std::is_nothrow_move_assignable<_GLIBCXX_STD_C::vector<_Tp, _Alloc>> + { }; + } // namespace __detail::__variant +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_VECTOR_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/string_view.tcc b/resources/sources/avr-libstdcpp/include/bits/string_view.tcc new file mode 100644 index 000000000..88d9371f1 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/string_view.tcc @@ -0,0 +1,229 @@ +// Components for manipulating non-owning sequences of characters -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/bits/string_view.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{string_view} + */ + +// +// N3762 basic_string_view library +// + +#ifndef _GLIBCXX_STRING_VIEW_TCC +#define _GLIBCXX_STRING_VIEW_TCC 1 + +#pragma GCC system_header + +#if __cplusplus >= 201703L + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find(const _CharT* __str, size_type __pos, size_type __n) const noexcept + { + __glibcxx_requires_string_len(__str, __n); + + if (__n == 0) + return __pos <= this->_M_len ? __pos : npos; + + if (__n <= this->_M_len) + { + for (; __pos <= this->_M_len - __n; ++__pos) + if (traits_type::eq(this->_M_str[__pos], __str[0]) + && traits_type::compare(this->_M_str + __pos + 1, + __str + 1, __n - 1) == 0) + return __pos; + } + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find(_CharT __c, size_type __pos) const noexcept + { + size_type __ret = npos; + if (__pos < this->_M_len) + { + const size_type __n = this->_M_len - __pos; + const _CharT* __p = traits_type::find(this->_M_str + __pos, __n, __c); + if (__p) + __ret = __p - this->_M_str; + } + return __ret; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + rfind(const _CharT* __str, size_type __pos, size_type __n) const noexcept + { + __glibcxx_requires_string_len(__str, __n); + + if (__n <= this->_M_len) + { + __pos = std::min(size_type(this->_M_len - __n), __pos); + do + { + if (traits_type::compare(this->_M_str + __pos, __str, __n) == 0) + return __pos; + } + while (__pos-- > 0); + } + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + rfind(_CharT __c, size_type __pos) const noexcept + { + size_type __size = this->_M_len; + if (__size > 0) + { + if (--__size > __pos) + __size = __pos; + for (++__size; __size-- > 0; ) + if (traits_type::eq(this->_M_str[__size], __c)) + return __size; + } + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find_first_of(const _CharT* __str, size_type __pos, + size_type __n) const noexcept + { + __glibcxx_requires_string_len(__str, __n); + for (; __n && __pos < this->_M_len; ++__pos) + { + const _CharT* __p = traits_type::find(__str, __n, + this->_M_str[__pos]); + if (__p) + return __pos; + } + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find_last_of(const _CharT* __str, size_type __pos, + size_type __n) const noexcept + { + __glibcxx_requires_string_len(__str, __n); + size_type __size = this->size(); + if (__size && __n) + { + if (--__size > __pos) + __size = __pos; + do + { + if (traits_type::find(__str, __n, this->_M_str[__size])) + return __size; + } + while (__size-- != 0); + } + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find_first_not_of(const _CharT* __str, size_type __pos, + size_type __n) const noexcept + { + __glibcxx_requires_string_len(__str, __n); + for (; __pos < this->_M_len; ++__pos) + if (!traits_type::find(__str, __n, this->_M_str[__pos])) + return __pos; + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find_first_not_of(_CharT __c, size_type __pos) const noexcept + { + for (; __pos < this->_M_len; ++__pos) + if (!traits_type::eq(this->_M_str[__pos], __c)) + return __pos; + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find_last_not_of(const _CharT* __str, size_type __pos, + size_type __n) const noexcept + { + __glibcxx_requires_string_len(__str, __n); + size_type __size = this->_M_len; + if (__size) + { + if (--__size > __pos) + __size = __pos; + do + { + if (!traits_type::find(__str, __n, this->_M_str[__size])) + return __size; + } + while (__size--); + } + return npos; + } + + template + constexpr typename basic_string_view<_CharT, _Traits>::size_type + basic_string_view<_CharT, _Traits>:: + find_last_not_of(_CharT __c, size_type __pos) const noexcept + { + size_type __size = this->_M_len; + if (__size) + { + if (--__size > __pos) + __size = __pos; + do + { + if (!traits_type::eq(this->_M_str[__size], __c)) + return __size; + } + while (__size--); + } + return npos; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // __cplusplus <= 201402L + +#endif // _GLIBCXX_STRING_VIEW_TCC diff --git a/resources/sources/avr-libstdcpp/include/bits/uniform_int_dist.h b/resources/sources/avr-libstdcpp/include/bits/uniform_int_dist.h new file mode 100644 index 000000000..e3d7934e9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/uniform_int_dist.h @@ -0,0 +1,395 @@ +// Class template uniform_int_distribution -*- C++ -*- + +// Copyright (C) 2009-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** + * @file bits/uniform_int_dist.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{random} + */ + +#ifndef _GLIBCXX_BITS_UNIFORM_INT_DIST_H +#define _GLIBCXX_BITS_UNIFORM_INT_DIST_H + +#include +#include +#if __cplusplus > 201703L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#ifdef __cpp_lib_concepts + /// Requirements for a uniform random bit generator. + template + concept uniform_random_bit_generator + = invocable<_Gen&> && unsigned_integral> + && requires + { + { _Gen::min() } -> same_as>; + { _Gen::max() } -> same_as>; + requires bool_constant<(_Gen::min() < _Gen::max())>::value; + }; +#endif + + namespace __detail + { + /* Determine whether number is a power of 2. */ + template + inline bool + _Power_of_2(_Tp __x) + { + return ((__x - 1) & __x) == 0; + } + } + + /** + * @brief Uniform discrete distribution for random numbers. + * A discrete random distribution on the range @f$[min, max]@f$ with equal + * probability throughout the range. + */ + template + class uniform_int_distribution + { + static_assert(std::is_integral<_IntType>::value, + "template argument must be an integral type"); + + public: + /** The type of the range of the distribution. */ + typedef _IntType result_type; + /** Parameter type. */ + struct param_type + { + typedef uniform_int_distribution<_IntType> distribution_type; + + param_type() : param_type(0) { } + + explicit + param_type(_IntType __a, + _IntType __b = numeric_limits<_IntType>::max()) + : _M_a(__a), _M_b(__b) + { + __glibcxx_assert(_M_a <= _M_b); + } + + result_type + a() const + { return _M_a; } + + result_type + b() const + { return _M_b; } + + friend bool + operator==(const param_type& __p1, const param_type& __p2) + { return __p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b; } + + friend bool + operator!=(const param_type& __p1, const param_type& __p2) + { return !(__p1 == __p2); } + + private: + _IntType _M_a; + _IntType _M_b; + }; + + public: + /** + * @brief Constructs a uniform distribution object. + */ + uniform_int_distribution() : uniform_int_distribution(0) { } + + /** + * @brief Constructs a uniform distribution object. + */ + explicit + uniform_int_distribution(_IntType __a, + _IntType __b = numeric_limits<_IntType>::max()) + : _M_param(__a, __b) + { } + + explicit + uniform_int_distribution(const param_type& __p) + : _M_param(__p) + { } + + /** + * @brief Resets the distribution state. + * + * Does nothing for the uniform integer distribution. + */ + void + reset() { } + + result_type + a() const + { return _M_param.a(); } + + result_type + b() const + { return _M_param.b(); } + + /** + * @brief Returns the parameter set of the distribution. + */ + param_type + param() const + { return _M_param; } + + /** + * @brief Sets the parameter set of the distribution. + * @param __param The new parameter set of the distribution. + */ + void + param(const param_type& __param) + { _M_param = __param; } + + /** + * @brief Returns the inclusive lower bound of the distribution range. + */ + result_type + min() const + { return this->a(); } + + /** + * @brief Returns the inclusive upper bound of the distribution range. + */ + result_type + max() const + { return this->b(); } + + /** + * @brief Generating functions. + */ + template + result_type + operator()(_UniformRandomNumberGenerator& __urng) + { return this->operator()(__urng, _M_param); } + + template + result_type + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __p); + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng) + { this->__generate(__f, __t, __urng, _M_param); } + + template + void + __generate(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + template + void + __generate(result_type* __f, result_type* __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p) + { this->__generate_impl(__f, __t, __urng, __p); } + + /** + * @brief Return true if two uniform integer distributions have + * the same parameters. + */ + friend bool + operator==(const uniform_int_distribution& __d1, + const uniform_int_distribution& __d2) + { return __d1._M_param == __d2._M_param; } + + private: + template + void + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __p); + + param_type _M_param; + }; + + template + template + typename uniform_int_distribution<_IntType>::result_type + uniform_int_distribution<_IntType>:: + operator()(_UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + typedef typename _UniformRandomNumberGenerator::result_type + _Gresult_type; + typedef typename std::make_unsigned::type __utype; + typedef typename std::common_type<_Gresult_type, __utype>::type + __uctype; + + const __uctype __urngmin = __urng.min(); + const __uctype __urngmax = __urng.max(); + const __uctype __urngrange = __urngmax - __urngmin; + const __uctype __urange + = __uctype(__param.b()) - __uctype(__param.a()); + + __uctype __ret; + + if (__urngrange > __urange) + { + // downscaling + const __uctype __uerange = __urange + 1; // __urange can be zero + const __uctype __scaling = __urngrange / __uerange; + const __uctype __past = __uerange * __scaling; + do + __ret = __uctype(__urng()) - __urngmin; + while (__ret >= __past); + __ret /= __scaling; + } + else if (__urngrange < __urange) + { + // upscaling + /* + Note that every value in [0, urange] + can be written uniquely as + + (urngrange + 1) * high + low + + where + + high in [0, urange / (urngrange + 1)] + + and + + low in [0, urngrange]. + */ + __uctype __tmp; // wraparound control + do + { + const __uctype __uerngrange = __urngrange + 1; + __tmp = (__uerngrange * operator() + (__urng, param_type(0, __urange / __uerngrange))); + __ret = __tmp + (__uctype(__urng()) - __urngmin); + } + while (__ret > __urange || __ret < __tmp); + } + else + __ret = __uctype(__urng()) - __urngmin; + + return __ret + __param.a(); + } + + + template + template + void + uniform_int_distribution<_IntType>:: + __generate_impl(_ForwardIterator __f, _ForwardIterator __t, + _UniformRandomNumberGenerator& __urng, + const param_type& __param) + { + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + typedef typename _UniformRandomNumberGenerator::result_type + _Gresult_type; + typedef typename std::make_unsigned::type __utype; + typedef typename std::common_type<_Gresult_type, __utype>::type + __uctype; + + const __uctype __urngmin = __urng.min(); + const __uctype __urngmax = __urng.max(); + const __uctype __urngrange = __urngmax - __urngmin; + const __uctype __urange + = __uctype(__param.b()) - __uctype(__param.a()); + + __uctype __ret; + + if (__urngrange > __urange) + { + if (__detail::_Power_of_2(__urngrange + 1) + && __detail::_Power_of_2(__urange + 1)) + { + while (__f != __t) + { + __ret = __uctype(__urng()) - __urngmin; + *__f++ = (__ret & __urange) + __param.a(); + } + } + else + { + // downscaling + const __uctype __uerange = __urange + 1; // __urange can be zero + const __uctype __scaling = __urngrange / __uerange; + const __uctype __past = __uerange * __scaling; + while (__f != __t) + { + do + __ret = __uctype(__urng()) - __urngmin; + while (__ret >= __past); + *__f++ = __ret / __scaling + __param.a(); + } + } + } + else if (__urngrange < __urange) + { + // upscaling + /* + Note that every value in [0, urange] + can be written uniquely as + + (urngrange + 1) * high + low + + where + + high in [0, urange / (urngrange + 1)] + + and + + low in [0, urngrange]. + */ + __uctype __tmp; // wraparound control + while (__f != __t) + { + do + { + const __uctype __uerngrange = __urngrange + 1; + __tmp = (__uerngrange * operator() + (__urng, param_type(0, __urange / __uerngrange))); + __ret = __tmp + (__uctype(__urng()) - __urngmin); + } + while (__ret > __urange || __ret < __tmp); + *__f++ = __ret; + } + } + else + while (__f != __t) + *__f++ = __uctype(__urng()) - __urngmin + __param.a(); + } + + // operator!= and operator<< and operator>> are defined in + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/unique_lock.h b/resources/sources/avr-libstdcpp/include/bits/unique_lock.h new file mode 100644 index 000000000..82eef44d6 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/unique_lock.h @@ -0,0 +1,243 @@ +// std::unique_lock implementation -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/unique_lock.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{mutex} + */ + +#ifndef _GLIBCXX_UNIQUE_LOCK_H +#define _GLIBCXX_UNIQUE_LOCK_H 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include // for std::swap + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** @brief A movable scoped lock type. + * + * A unique_lock controls mutex ownership within a scope. Ownership of the + * mutex can be delayed until after construction and can be transferred + * to another unique_lock by move construction or move assignment. If a + * mutex lock is owned when the destructor runs ownership will be released. + * + * @ingroup mutexes + */ + template + class unique_lock + { + public: + typedef _Mutex mutex_type; + + unique_lock() noexcept + : _M_device(0), _M_owns(false) + { } + + explicit unique_lock(mutex_type& __m) + : _M_device(std::__addressof(__m)), _M_owns(false) + { + lock(); + _M_owns = true; + } + + unique_lock(mutex_type& __m, defer_lock_t) noexcept + : _M_device(std::__addressof(__m)), _M_owns(false) + { } + + unique_lock(mutex_type& __m, try_to_lock_t) + : _M_device(std::__addressof(__m)), _M_owns(_M_device->try_lock()) + { } + + unique_lock(mutex_type& __m, adopt_lock_t) noexcept + : _M_device(std::__addressof(__m)), _M_owns(true) + { + // XXX calling thread owns mutex + } + + template + unique_lock(mutex_type& __m, + const chrono::time_point<_Clock, _Duration>& __atime) + : _M_device(std::__addressof(__m)), + _M_owns(_M_device->try_lock_until(__atime)) + { } + + template + unique_lock(mutex_type& __m, + const chrono::duration<_Rep, _Period>& __rtime) + : _M_device(std::__addressof(__m)), + _M_owns(_M_device->try_lock_for(__rtime)) + { } + + ~unique_lock() + { + if (_M_owns) + unlock(); + } + + unique_lock(const unique_lock&) = delete; + unique_lock& operator=(const unique_lock&) = delete; + + unique_lock(unique_lock&& __u) noexcept + : _M_device(__u._M_device), _M_owns(__u._M_owns) + { + __u._M_device = 0; + __u._M_owns = false; + } + + unique_lock& operator=(unique_lock&& __u) noexcept + { + if(_M_owns) + unlock(); + + unique_lock(std::move(__u)).swap(*this); + + __u._M_device = 0; + __u._M_owns = false; + + return *this; + } + + void + lock() + { + if (!_M_device) + __throw_system_error(int(errc::operation_not_permitted)); + else if (_M_owns) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + else + { + _M_device->lock(); + _M_owns = true; + } + } + + bool + try_lock() + { + if (!_M_device) + __throw_system_error(int(errc::operation_not_permitted)); + else if (_M_owns) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + else + { + _M_owns = _M_device->try_lock(); + return _M_owns; + } + } + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { + if (!_M_device) + __throw_system_error(int(errc::operation_not_permitted)); + else if (_M_owns) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + else + { + _M_owns = _M_device->try_lock_until(__atime); + return _M_owns; + } + } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { + if (!_M_device) + __throw_system_error(int(errc::operation_not_permitted)); + else if (_M_owns) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + else + { + _M_owns = _M_device->try_lock_for(__rtime); + return _M_owns; + } + } + + void + unlock() + { + if (!_M_owns) + __throw_system_error(int(errc::operation_not_permitted)); + else if (_M_device) + { + _M_device->unlock(); + _M_owns = false; + } + } + + void + swap(unique_lock& __u) noexcept + { + std::swap(_M_device, __u._M_device); + std::swap(_M_owns, __u._M_owns); + } + + mutex_type* + release() noexcept + { + mutex_type* __ret = _M_device; + _M_device = 0; + _M_owns = false; + return __ret; + } + + bool + owns_lock() const noexcept + { return _M_owns; } + + explicit operator bool() const noexcept + { return owns_lock(); } + + mutex_type* + mutex() const noexcept + { return _M_device; } + + private: + mutex_type* _M_device; + bool _M_owns; + }; + + /// Swap overload for unique_lock objects. + /// @relates unique_lock + template + inline void + swap(unique_lock<_Mutex>& __x, unique_lock<_Mutex>& __y) noexcept + { __x.swap(__y); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 +#endif // _GLIBCXX_UNIQUE_LOCK_H diff --git a/resources/sources/avr-libstdcpp/include/bits/unique_ptr.h b/resources/sources/avr-libstdcpp/include/bits/unique_ptr.h new file mode 100644 index 000000000..0f100c593 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/unique_ptr.h @@ -0,0 +1,995 @@ +// unique_ptr implementation -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/unique_ptr.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _UNIQUE_PTR_H +#define _UNIQUE_PTR_H 1 + +#include +#include +#include +#include +#include +#include +#include +#if __cplusplus > 201703L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup pointer_abstractions + * @{ + */ + +#if _GLIBCXX_USE_DEPRECATED +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + template class auto_ptr; +#pragma GCC diagnostic pop +#endif + + /// Primary template of default_delete, used by unique_ptr for single objects + template + struct default_delete + { + /// Default constructor + constexpr default_delete() noexcept = default; + + /** @brief Converting constructor. + * + * Allows conversion from a deleter for objects of another type, `_Up`, + * only if `_Up*` is convertible to `_Tp*`. + */ + template>> + default_delete(const default_delete<_Up>&) noexcept { } + + /// Calls `delete __ptr` + void + operator()(_Tp* __ptr) const + { + static_assert(!is_void<_Tp>::value, + "can't delete pointer to incomplete type"); + static_assert(sizeof(_Tp)>0, + "can't delete pointer to incomplete type"); + delete __ptr; + } + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 740 - omit specialization for array objects with a compile time length + + /// Specialization of default_delete for arrays, used by `unique_ptr` + template + struct default_delete<_Tp[]> + { + public: + /// Default constructor + constexpr default_delete() noexcept = default; + + /** @brief Converting constructor. + * + * Allows conversion from a deleter for arrays of another type, such as + * a const-qualified version of `_Tp`. + * + * Conversions from types derived from `_Tp` are not allowed because + * it is undefined to `delete[]` an array of derived types through a + * pointer to the base type. + */ + template>> + default_delete(const default_delete<_Up[]>&) noexcept { } + + /// Calls `delete[] __ptr` + template + typename enable_if::value>::type + operator()(_Up* __ptr) const + { + static_assert(sizeof(_Tp)>0, + "can't delete pointer to incomplete type"); + delete [] __ptr; + } + }; + + /// @cond undocumented + + // Manages the pointer and deleter of a unique_ptr + template + class __uniq_ptr_impl + { + template + struct _Ptr + { + using type = _Up*; + }; + + template + struct + _Ptr<_Up, _Ep, __void_t::type::pointer>> + { + using type = typename remove_reference<_Ep>::type::pointer; + }; + + public: + using _DeleterConstraint = enable_if< + __and_<__not_>, + is_default_constructible<_Dp>>::value>; + + using pointer = typename _Ptr<_Tp, _Dp>::type; + + static_assert( !is_rvalue_reference<_Dp>::value, + "unique_ptr's deleter type must be a function object type" + " or an lvalue reference type" ); + + __uniq_ptr_impl() = default; + __uniq_ptr_impl(pointer __p) : _M_t() { _M_ptr() = __p; } + + template + __uniq_ptr_impl(pointer __p, _Del&& __d) + : _M_t(__p, std::forward<_Del>(__d)) { } + + __uniq_ptr_impl(__uniq_ptr_impl&& __u) noexcept + : _M_t(std::move(__u._M_t)) + { __u._M_ptr() = nullptr; } + + __uniq_ptr_impl& operator=(__uniq_ptr_impl&& __u) noexcept + { + reset(__u.release()); + _M_deleter() = std::forward<_Dp>(__u._M_deleter()); + return *this; + } + + pointer& _M_ptr() { return std::get<0>(_M_t); } + pointer _M_ptr() const { return std::get<0>(_M_t); } + _Dp& _M_deleter() { return std::get<1>(_M_t); } + const _Dp& _M_deleter() const { return std::get<1>(_M_t); } + + void reset(pointer __p) noexcept + { + const pointer __old_p = _M_ptr(); + _M_ptr() = __p; + if (__old_p) + _M_deleter()(__old_p); + } + + pointer release() noexcept + { + pointer __p = _M_ptr(); + _M_ptr() = nullptr; + return __p; + } + + void + swap(__uniq_ptr_impl& __rhs) noexcept + { + using std::swap; + swap(this->_M_ptr(), __rhs._M_ptr()); + swap(this->_M_deleter(), __rhs._M_deleter()); + } + + private: + tuple _M_t; + }; + + // Defines move construction + assignment as either defaulted or deleted. + template ::value, + bool = is_move_assignable<_Dp>::value> + struct __uniq_ptr_data : __uniq_ptr_impl<_Tp, _Dp> + { + using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl; + __uniq_ptr_data(__uniq_ptr_data&&) = default; + __uniq_ptr_data& operator=(__uniq_ptr_data&&) = default; + }; + + template + struct __uniq_ptr_data<_Tp, _Dp, true, false> : __uniq_ptr_impl<_Tp, _Dp> + { + using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl; + __uniq_ptr_data(__uniq_ptr_data&&) = default; + __uniq_ptr_data& operator=(__uniq_ptr_data&&) = delete; + }; + + template + struct __uniq_ptr_data<_Tp, _Dp, false, true> : __uniq_ptr_impl<_Tp, _Dp> + { + using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl; + __uniq_ptr_data(__uniq_ptr_data&&) = delete; + __uniq_ptr_data& operator=(__uniq_ptr_data&&) = default; + }; + + template + struct __uniq_ptr_data<_Tp, _Dp, false, false> : __uniq_ptr_impl<_Tp, _Dp> + { + using __uniq_ptr_impl<_Tp, _Dp>::__uniq_ptr_impl; + __uniq_ptr_data(__uniq_ptr_data&&) = delete; + __uniq_ptr_data& operator=(__uniq_ptr_data&&) = delete; + }; + /// @endcond + + /// 20.7.1.2 unique_ptr for single objects. + template > + class unique_ptr + { + template + using _DeleterConstraint = + typename __uniq_ptr_impl<_Tp, _Up>::_DeleterConstraint::type; + + __uniq_ptr_data<_Tp, _Dp> _M_t; + + public: + using pointer = typename __uniq_ptr_impl<_Tp, _Dp>::pointer; + using element_type = _Tp; + using deleter_type = _Dp; + + private: + // helper template for detecting a safe conversion from another + // unique_ptr + template + using __safe_conversion_up = __and_< + is_convertible::pointer, pointer>, + __not_> + >; + + public: + // Constructors. + + /// Default constructor, creates a unique_ptr that owns nothing. + template> + constexpr unique_ptr() noexcept + : _M_t() + { } + + /** Takes ownership of a pointer. + * + * @param __p A pointer to an object of @c element_type + * + * The deleter will be value-initialized. + */ + template> + explicit + unique_ptr(pointer __p) noexcept + : _M_t(__p) + { } + + /** Takes ownership of a pointer. + * + * @param __p A pointer to an object of @c element_type + * @param __d A reference to a deleter. + * + * The deleter will be initialized with @p __d + */ + template>> + unique_ptr(pointer __p, const deleter_type& __d) noexcept + : _M_t(__p, __d) { } + + /** Takes ownership of a pointer. + * + * @param __p A pointer to an object of @c element_type + * @param __d An rvalue reference to a (non-reference) deleter. + * + * The deleter will be initialized with @p std::move(__d) + */ + template>> + unique_ptr(pointer __p, + __enable_if_t::value, + _Del&&> __d) noexcept + : _M_t(__p, std::move(__d)) + { } + + template::type> + unique_ptr(pointer, + __enable_if_t::value, + _DelUnref&&>) = delete; + + /// Creates a unique_ptr that owns nothing. + template> + constexpr unique_ptr(nullptr_t) noexcept + : _M_t() + { } + + // Move constructors. + + /// Move constructor. + unique_ptr(unique_ptr&&) = default; + + /** @brief Converting constructor from another type + * + * Requires that the pointer owned by @p __u is convertible to the + * type of pointer owned by this object, @p __u does not own an array, + * and @p __u has a compatible deleter type. + */ + template, + typename conditional::value, + is_same<_Ep, _Dp>, + is_convertible<_Ep, _Dp>>::type>> + unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept + : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter())) + { } + +#if _GLIBCXX_USE_DEPRECATED +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + /// Converting constructor from @c auto_ptr + template, is_same<_Dp, default_delete<_Tp>>>> + unique_ptr(auto_ptr<_Up>&& __u) noexcept; +#pragma GCC diagnostic pop +#endif + + /// Destructor, invokes the deleter if the stored pointer is not null. + ~unique_ptr() noexcept + { + static_assert(__is_invocable::value, + "unique_ptr's deleter must be invocable with a pointer"); + auto& __ptr = _M_t._M_ptr(); + if (__ptr != nullptr) + get_deleter()(std::move(__ptr)); + __ptr = pointer(); + } + + // Assignment. + + /** @brief Move assignment operator. + * + * Invokes the deleter if this object owns a pointer. + */ + unique_ptr& operator=(unique_ptr&&) = default; + + /** @brief Assignment from another type. + * + * @param __u The object to transfer ownership from, which owns a + * convertible pointer to a non-array object. + * + * Invokes the deleter if this object owns a pointer. + */ + template + typename enable_if< __and_< + __safe_conversion_up<_Up, _Ep>, + is_assignable + >::value, + unique_ptr&>::type + operator=(unique_ptr<_Up, _Ep>&& __u) noexcept + { + reset(__u.release()); + get_deleter() = std::forward<_Ep>(__u.get_deleter()); + return *this; + } + + /// Reset the %unique_ptr to empty, invoking the deleter if necessary. + unique_ptr& + operator=(nullptr_t) noexcept + { + reset(); + return *this; + } + + // Observers. + + /// Dereference the stored pointer. + typename add_lvalue_reference::type + operator*() const + { + __glibcxx_assert(get() != pointer()); + return *get(); + } + + /// Return the stored pointer. + pointer + operator->() const noexcept + { + _GLIBCXX_DEBUG_PEDASSERT(get() != pointer()); + return get(); + } + + /// Return the stored pointer. + pointer + get() const noexcept + { return _M_t._M_ptr(); } + + /// Return a reference to the stored deleter. + deleter_type& + get_deleter() noexcept + { return _M_t._M_deleter(); } + + /// Return a reference to the stored deleter. + const deleter_type& + get_deleter() const noexcept + { return _M_t._M_deleter(); } + + /// Return @c true if the stored pointer is not null. + explicit operator bool() const noexcept + { return get() == pointer() ? false : true; } + + // Modifiers. + + /// Release ownership of any stored pointer. + pointer + release() noexcept + { return _M_t.release(); } + + /** @brief Replace the stored pointer. + * + * @param __p The new pointer to store. + * + * The deleter will be invoked if a pointer is already owned. + */ + void + reset(pointer __p = pointer()) noexcept + { + static_assert(__is_invocable::value, + "unique_ptr's deleter must be invocable with a pointer"); + _M_t.reset(std::move(__p)); + } + + /// Exchange the pointer and deleter with another object. + void + swap(unique_ptr& __u) noexcept + { + static_assert(__is_swappable<_Dp>::value, "deleter must be swappable"); + _M_t.swap(__u._M_t); + } + + // Disable copy from lvalue. + unique_ptr(const unique_ptr&) = delete; + unique_ptr& operator=(const unique_ptr&) = delete; + }; + + /// 20.7.1.3 unique_ptr for array objects with a runtime length + // [unique.ptr.runtime] + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 740 - omit specialization for array objects with a compile time length + template + class unique_ptr<_Tp[], _Dp> + { + template + using _DeleterConstraint = + typename __uniq_ptr_impl<_Tp, _Up>::_DeleterConstraint::type; + + __uniq_ptr_data<_Tp, _Dp> _M_t; + + template + using __remove_cv_t = typename remove_cv<_Up>::type; + + // like is_base_of<_Tp, _Up> but false if unqualified types are the same + template + using __is_derived_Tp + = __and_< is_base_of<_Tp, _Up>, + __not_, __remove_cv_t<_Up>>> >; + + public: + using pointer = typename __uniq_ptr_impl<_Tp, _Dp>::pointer; + using element_type = _Tp; + using deleter_type = _Dp; + + // helper template for detecting a safe conversion from another + // unique_ptr + template, + typename _UP_pointer = typename _UPtr::pointer, + typename _UP_element_type = typename _UPtr::element_type> + using __safe_conversion_up = __and_< + is_array<_Up>, + is_same, + is_same<_UP_pointer, _UP_element_type*>, + is_convertible<_UP_element_type(*)[], element_type(*)[]> + >; + + // helper template for detecting a safe conversion from a raw pointer + template + using __safe_conversion_raw = __and_< + __or_<__or_, + is_same<_Up, nullptr_t>>, + __and_, + is_same, + is_convertible< + typename remove_pointer<_Up>::type(*)[], + element_type(*)[]> + > + > + >; + + // Constructors. + + /// Default constructor, creates a unique_ptr that owns nothing. + template> + constexpr unique_ptr() noexcept + : _M_t() + { } + + /** Takes ownership of a pointer. + * + * @param __p A pointer to an array of a type safely convertible + * to an array of @c element_type + * + * The deleter will be value-initialized. + */ + template, + typename = typename enable_if< + __safe_conversion_raw<_Up>::value, bool>::type> + explicit + unique_ptr(_Up __p) noexcept + : _M_t(__p) + { } + + /** Takes ownership of a pointer. + * + * @param __p A pointer to an array of a type safely convertible + * to an array of @c element_type + * @param __d A reference to a deleter. + * + * The deleter will be initialized with @p __d + */ + template, + is_copy_constructible<_Del>>> + unique_ptr(_Up __p, const deleter_type& __d) noexcept + : _M_t(__p, __d) { } + + /** Takes ownership of a pointer. + * + * @param __p A pointer to an array of a type safely convertible + * to an array of @c element_type + * @param __d A reference to a deleter. + * + * The deleter will be initialized with @p std::move(__d) + */ + template, + is_move_constructible<_Del>>> + unique_ptr(_Up __p, + __enable_if_t::value, + _Del&&> __d) noexcept + : _M_t(std::move(__p), std::move(__d)) + { } + + template::type, + typename = _Require<__safe_conversion_raw<_Up>>> + unique_ptr(_Up, + __enable_if_t::value, + _DelUnref&&>) = delete; + + /// Move constructor. + unique_ptr(unique_ptr&&) = default; + + /// Creates a unique_ptr that owns nothing. + template> + constexpr unique_ptr(nullptr_t) noexcept + : _M_t() + { } + + template, + typename conditional::value, + is_same<_Ep, _Dp>, + is_convertible<_Ep, _Dp>>::type>> + unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept + : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter())) + { } + + /// Destructor, invokes the deleter if the stored pointer is not null. + ~unique_ptr() + { + auto& __ptr = _M_t._M_ptr(); + if (__ptr != nullptr) + get_deleter()(__ptr); + __ptr = pointer(); + } + + // Assignment. + + /** @brief Move assignment operator. + * + * Invokes the deleter if this object owns a pointer. + */ + unique_ptr& + operator=(unique_ptr&&) = default; + + /** @brief Assignment from another type. + * + * @param __u The object to transfer ownership from, which owns a + * convertible pointer to an array object. + * + * Invokes the deleter if this object owns a pointer. + */ + template + typename + enable_if<__and_<__safe_conversion_up<_Up, _Ep>, + is_assignable + >::value, + unique_ptr&>::type + operator=(unique_ptr<_Up, _Ep>&& __u) noexcept + { + reset(__u.release()); + get_deleter() = std::forward<_Ep>(__u.get_deleter()); + return *this; + } + + /// Reset the %unique_ptr to empty, invoking the deleter if necessary. + unique_ptr& + operator=(nullptr_t) noexcept + { + reset(); + return *this; + } + + // Observers. + + /// Access an element of owned array. + typename std::add_lvalue_reference::type + operator[](size_t __i) const + { + __glibcxx_assert(get() != pointer()); + return get()[__i]; + } + + /// Return the stored pointer. + pointer + get() const noexcept + { return _M_t._M_ptr(); } + + /// Return a reference to the stored deleter. + deleter_type& + get_deleter() noexcept + { return _M_t._M_deleter(); } + + /// Return a reference to the stored deleter. + const deleter_type& + get_deleter() const noexcept + { return _M_t._M_deleter(); } + + /// Return @c true if the stored pointer is not null. + explicit operator bool() const noexcept + { return get() == pointer() ? false : true; } + + // Modifiers. + + /// Release ownership of any stored pointer. + pointer + release() noexcept + { return _M_t.release(); } + + /** @brief Replace the stored pointer. + * + * @param __p The new pointer to store. + * + * The deleter will be invoked if a pointer is already owned. + */ + template , + __and_, + is_pointer<_Up>, + is_convertible< + typename remove_pointer<_Up>::type(*)[], + element_type(*)[] + > + > + > + >> + void + reset(_Up __p) noexcept + { _M_t.reset(std::move(__p)); } + + void reset(nullptr_t = nullptr) noexcept + { reset(pointer()); } + + /// Exchange the pointer and deleter with another object. + void + swap(unique_ptr& __u) noexcept + { + static_assert(__is_swappable<_Dp>::value, "deleter must be swappable"); + _M_t.swap(__u._M_t); + } + + // Disable copy from lvalue. + unique_ptr(const unique_ptr&) = delete; + unique_ptr& operator=(const unique_ptr&) = delete; + }; + + /// @relates unique_ptr @{ + + /// Swap overload for unique_ptr + template + inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if<__is_swappable<_Dp>::value>::type +#else + void +#endif + swap(unique_ptr<_Tp, _Dp>& __x, + unique_ptr<_Tp, _Dp>& __y) noexcept + { __x.swap(__y); } + +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + template + typename enable_if::value>::type + swap(unique_ptr<_Tp, _Dp>&, + unique_ptr<_Tp, _Dp>&) = delete; +#endif + + /// Equality operator for unique_ptr objects, compares the owned pointers + template + _GLIBCXX_NODISCARD inline bool + operator==(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return __x.get() == __y.get(); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept + { return !__x; } + +#ifndef __cpp_lib_three_way_comparison + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator==(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept + { return !__x; } + + /// Inequality operator for unique_ptr objects, compares the owned pointers + template + _GLIBCXX_NODISCARD inline bool + operator!=(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return __x.get() != __y.get(); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator!=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept + { return (bool)__x; } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator!=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept + { return (bool)__x; } +#endif // three way comparison + + /// Relational operator for unique_ptr objects, compares the owned pointers + template + _GLIBCXX_NODISCARD inline bool + operator<(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { + typedef typename + std::common_type::pointer, + typename unique_ptr<_Up, _Ep>::pointer>::type _CT; + return std::less<_CT>()(__x.get(), __y.get()); + } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { + return std::less::pointer>()(__x.get(), + nullptr); + } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { + return std::less::pointer>()(nullptr, + __x.get()); + } + + /// Relational operator for unique_ptr objects, compares the owned pointers + template + _GLIBCXX_NODISCARD inline bool + operator<=(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return !(__y < __x); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator<=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { return !(nullptr < __x); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator<=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { return !(__x < nullptr); } + + /// Relational operator for unique_ptr objects, compares the owned pointers + template + _GLIBCXX_NODISCARD inline bool + operator>(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return (__y < __x); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { + return std::less::pointer>()(nullptr, + __x.get()); + } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator>(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { + return std::less::pointer>()(__x.get(), + nullptr); + } + + /// Relational operator for unique_ptr objects, compares the owned pointers + template + _GLIBCXX_NODISCARD inline bool + operator>=(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return !(__x < __y); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator>=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { return !(__x < nullptr); } + + /// unique_ptr comparison with nullptr + template + _GLIBCXX_NODISCARD inline bool + operator>=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) + { return !(nullptr < __x); } + +#ifdef __cpp_lib_three_way_comparison + template + requires three_way_comparable_with::pointer, + typename unique_ptr<_Up, _Ep>::pointer> + inline + compare_three_way_result_t::pointer, + typename unique_ptr<_Up, _Ep>::pointer> + operator<=>(const unique_ptr<_Tp, _Dp>& __x, + const unique_ptr<_Up, _Ep>& __y) + { return compare_three_way()(__x.get(), __y.get()); } + + template + requires three_way_comparable::pointer> + inline + compare_three_way_result_t::pointer> + operator<=>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) + { + using pointer = typename unique_ptr<_Tp, _Dp>::pointer; + return compare_three_way()(__x.get(), static_cast(nullptr)); + } +#endif + // @} relates unique_ptr + + /// @cond undocumented + template::__enable_hash_call> + struct __uniq_ptr_hash +#if ! _GLIBCXX_INLINE_VERSION + : private __poison_hash<_Ptr> +#endif + { + size_t + operator()(const _Up& __u) const + noexcept(noexcept(std::declval>()(std::declval<_Ptr>()))) + { return hash<_Ptr>()(__u.get()); } + }; + + template + struct __uniq_ptr_hash<_Up, _Ptr, false> + : private __poison_hash<_Ptr> + { }; + /// @endcond + + /// std::hash specialization for unique_ptr. + template + struct hash> + : public __hash_base>, + public __uniq_ptr_hash> + { }; + +#if __cplusplus >= 201402L + /// @relates unique_ptr @{ +#define __cpp_lib_make_unique 201304 + + /// @cond undocumented + + template + struct _MakeUniq + { typedef unique_ptr<_Tp> __single_object; }; + + template + struct _MakeUniq<_Tp[]> + { typedef unique_ptr<_Tp[]> __array; }; + + template + struct _MakeUniq<_Tp[_Bound]> + { struct __invalid_type { }; }; + + /// @endcond + + /// std::make_unique for single objects + template + inline typename _MakeUniq<_Tp>::__single_object + make_unique(_Args&&... __args) + { return unique_ptr<_Tp>(new _Tp(std::forward<_Args>(__args)...)); } + + /// std::make_unique for arrays of unknown bound + template + inline typename _MakeUniq<_Tp>::__array + make_unique(size_t __num) + { return unique_ptr<_Tp>(new remove_extent_t<_Tp>[__num]()); } + + /// Disable std::make_unique for arrays of known bound + template + inline typename _MakeUniq<_Tp>::__invalid_type + make_unique(_Args&&...) = delete; + // @} relates unique_ptr +#endif // C++14 + + // @} group pointer_abstractions + +#if __cplusplus >= 201703L + namespace __detail::__variant + { + template struct _Never_valueless_alt; // see + + // Provide the strong exception-safety guarantee when emplacing a + // unique_ptr into a variant. + template + struct _Never_valueless_alt> + : std::true_type + { }; + } // namespace __detail::__variant +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _UNIQUE_PTR_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/unordered_map.h b/resources/sources/avr-libstdcpp/include/bits/unordered_map.h new file mode 100644 index 000000000..0071d62e4 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/unordered_map.h @@ -0,0 +1,2171 @@ +// unordered_map implementation -*- C++ -*- + +// Copyright (C) 2010-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/unordered_map.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{unordered_map} + */ + +#ifndef _UNORDERED_MAP_H +#define _UNORDERED_MAP_H + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /// Base types for unordered_map. + template + using __umap_traits = __detail::_Hashtable_traits<_Cache, false, true>; + + template, + typename _Pred = std::equal_to<_Key>, + typename _Alloc = std::allocator >, + typename _Tr = __umap_traits<__cache_default<_Key, _Hash>::value>> + using __umap_hashtable = _Hashtable<_Key, std::pair, + _Alloc, __detail::_Select1st, + _Pred, _Hash, + __detail::_Mod_range_hashing, + __detail::_Default_ranged_hash, + __detail::_Prime_rehash_policy, _Tr>; + + /// Base types for unordered_multimap. + template + using __ummap_traits = __detail::_Hashtable_traits<_Cache, false, false>; + + template, + typename _Pred = std::equal_to<_Key>, + typename _Alloc = std::allocator >, + typename _Tr = __ummap_traits<__cache_default<_Key, _Hash>::value>> + using __ummap_hashtable = _Hashtable<_Key, std::pair, + _Alloc, __detail::_Select1st, + _Pred, _Hash, + __detail::_Mod_range_hashing, + __detail::_Default_ranged_hash, + __detail::_Prime_rehash_policy, _Tr>; + + template + class unordered_multimap; + + /** + * @brief A standard container composed of unique keys (containing + * at most one of each key value) that associates values of another type + * with the keys. + * + * @ingroup unordered_associative_containers + * + * @tparam _Key Type of key objects. + * @tparam _Tp Type of mapped objects. + * @tparam _Hash Hashing function object type, defaults to hash<_Value>. + * @tparam _Pred Predicate function object type, defaults + * to equal_to<_Value>. + * @tparam _Alloc Allocator type, defaults to + * std::allocator>. + * + * Meets the requirements of a container, and + * unordered associative container + * + * The resulting value type of the container is std::pair. + * + * Base is _Hashtable, dispatched at compile time via template + * alias __umap_hashtable. + */ + template, + typename _Pred = equal_to<_Key>, + typename _Alloc = allocator>> + class unordered_map + { + typedef __umap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc> _Hashtable; + _Hashtable _M_h; + + public: + // typedefs: + //@{ + /// Public typedefs. + typedef typename _Hashtable::key_type key_type; + typedef typename _Hashtable::value_type value_type; + typedef typename _Hashtable::mapped_type mapped_type; + typedef typename _Hashtable::hasher hasher; + typedef typename _Hashtable::key_equal key_equal; + typedef typename _Hashtable::allocator_type allocator_type; + //@} + + //@{ + /// Iterator-related typedefs. + typedef typename _Hashtable::pointer pointer; + typedef typename _Hashtable::const_pointer const_pointer; + typedef typename _Hashtable::reference reference; + typedef typename _Hashtable::const_reference const_reference; + typedef typename _Hashtable::iterator iterator; + typedef typename _Hashtable::const_iterator const_iterator; + typedef typename _Hashtable::local_iterator local_iterator; + typedef typename _Hashtable::const_local_iterator const_local_iterator; + typedef typename _Hashtable::size_type size_type; + typedef typename _Hashtable::difference_type difference_type; + //@} + +#if __cplusplus > 201402L + using node_type = typename _Hashtable::node_type; + using insert_return_type = typename _Hashtable::insert_return_type; +#endif + + //construct/destroy/copy + + /// Default constructor. + unordered_map() = default; + + /** + * @brief Default constructor creates no elements. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + */ + explicit + unordered_map(size_type __n, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__n, __hf, __eql, __a) + { } + + /** + * @brief Builds an %unordered_map from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_map consisting of copies of the elements from + * [__first,__last). This is linear in N (where N is + * distance(__first,__last)). + */ + template + unordered_map(_InputIterator __first, _InputIterator __last, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__first, __last, __n, __hf, __eql, __a) + { } + + /// Copy constructor. + unordered_map(const unordered_map&) = default; + + /// Move constructor. + unordered_map(unordered_map&&) = default; + + /** + * @brief Creates an %unordered_map with no elements. + * @param __a An allocator object. + */ + explicit + unordered_map(const allocator_type& __a) + : _M_h(__a) + { } + + /* + * @brief Copy constructor with allocator argument. + * @param __uset Input %unordered_map to copy. + * @param __a An allocator object. + */ + unordered_map(const unordered_map& __umap, + const allocator_type& __a) + : _M_h(__umap._M_h, __a) + { } + + /* + * @brief Move constructor with allocator argument. + * @param __uset Input %unordered_map to move. + * @param __a An allocator object. + */ + unordered_map(unordered_map&& __umap, + const allocator_type& __a) + : _M_h(std::move(__umap._M_h), __a) + { } + + /** + * @brief Builds an %unordered_map from an initializer_list. + * @param __l An initializer_list. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_map consisting of copies of the elements in the + * list. This is linear in N (where N is @a __l.size()). + */ + unordered_map(initializer_list __l, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__l, __n, __hf, __eql, __a) + { } + + unordered_map(size_type __n, const allocator_type& __a) + : unordered_map(__n, hasher(), key_equal(), __a) + { } + + unordered_map(size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_map(__n, __hf, key_equal(), __a) + { } + + template + unordered_map(_InputIterator __first, _InputIterator __last, + size_type __n, + const allocator_type& __a) + : unordered_map(__first, __last, __n, hasher(), key_equal(), __a) + { } + + template + unordered_map(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_map(__first, __last, __n, __hf, key_equal(), __a) + { } + + unordered_map(initializer_list __l, + size_type __n, + const allocator_type& __a) + : unordered_map(__l, __n, hasher(), key_equal(), __a) + { } + + unordered_map(initializer_list __l, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_map(__l, __n, __hf, key_equal(), __a) + { } + + /// Copy assignment operator. + unordered_map& + operator=(const unordered_map&) = default; + + /// Move assignment operator. + unordered_map& + operator=(unordered_map&&) = default; + + /** + * @brief %Unordered_map list assignment operator. + * @param __l An initializer_list. + * + * This function fills an %unordered_map with copies of the elements in + * the initializer list @a __l. + * + * Note that the assignment completely changes the %unordered_map and + * that the resulting %unordered_map's size is the same as the number + * of elements assigned. + */ + unordered_map& + operator=(initializer_list __l) + { + _M_h = __l; + return *this; + } + + /// Returns the allocator object used by the %unordered_map. + allocator_type + get_allocator() const noexcept + { return _M_h.get_allocator(); } + + // size and capacity: + + /// Returns true if the %unordered_map is empty. + _GLIBCXX_NODISCARD bool + empty() const noexcept + { return _M_h.empty(); } + + /// Returns the size of the %unordered_map. + size_type + size() const noexcept + { return _M_h.size(); } + + /// Returns the maximum size of the %unordered_map. + size_type + max_size() const noexcept + { return _M_h.max_size(); } + + // iterators. + + /** + * Returns a read/write iterator that points to the first element in the + * %unordered_map. + */ + iterator + begin() noexcept + { return _M_h.begin(); } + + //@{ + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %unordered_map. + */ + const_iterator + begin() const noexcept + { return _M_h.begin(); } + + const_iterator + cbegin() const noexcept + { return _M_h.begin(); } + //@} + + /** + * Returns a read/write iterator that points one past the last element in + * the %unordered_map. + */ + iterator + end() noexcept + { return _M_h.end(); } + + //@{ + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %unordered_map. + */ + const_iterator + end() const noexcept + { return _M_h.end(); } + + const_iterator + cend() const noexcept + { return _M_h.end(); } + //@} + + // modifiers. + + /** + * @brief Attempts to build and insert a std::pair into the + * %unordered_map. + * + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted pair, and the second is a bool that + * is true if the pair was actually inserted. + * + * This function attempts to build and insert a (key, value) %pair into + * the %unordered_map. + * An %unordered_map relies on unique keys and thus a %pair is only + * inserted if its first element (the key) is not already present in the + * %unordered_map. + * + * Insertion requires amortized constant time. + */ + template + std::pair + emplace(_Args&&... __args) + { return _M_h.emplace(std::forward<_Args>(__args)...); } + + /** + * @brief Attempts to build and insert a std::pair into the + * %unordered_map. + * + * @param __pos An iterator that serves as a hint as to where the pair + * should be inserted. + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * @return An iterator that points to the element with key of the + * std::pair built from @a __args (may or may not be that + * std::pair). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument emplace() + * does. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires amortized constant time. + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { return _M_h.emplace_hint(__pos, std::forward<_Args>(__args)...); } + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_h.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __key) + { return _M_h.extract(__key); } + + /// Re-insert an extracted node. + insert_return_type + insert(node_type&& __nh) + { return _M_h._M_reinsert_node(std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator, node_type&& __nh) + { return _M_h._M_reinsert_node(std::move(__nh)).position; } + +#define __cpp_lib_unordered_map_try_emplace 201411 + /** + * @brief Attempts to build and insert a std::pair into the + * %unordered_map. + * + * @param __k Key to use for finding a possibly existing pair in + * the unordered_map. + * @param __args Arguments used to generate the .second for a + * new pair instance. + * + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted pair, and the second is a bool that + * is true if the pair was actually inserted. + * + * This function attempts to build and insert a (key, value) %pair into + * the %unordered_map. + * An %unordered_map relies on unique keys and thus a %pair is only + * inserted if its first element (the key) is not already present in the + * %unordered_map. + * If a %pair is not inserted, this function has no effect. + * + * Insertion requires amortized constant time. + */ + template + pair + try_emplace(const key_type& __k, _Args&&... __args) + { + iterator __i = find(__k); + if (__i == end()) + { + __i = emplace(std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Args>(__args)...)) + .first; + return {__i, true}; + } + return {__i, false}; + } + + // move-capable overload + template + pair + try_emplace(key_type&& __k, _Args&&... __args) + { + iterator __i = find(__k); + if (__i == end()) + { + __i = emplace(std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Args>(__args)...)) + .first; + return {__i, true}; + } + return {__i, false}; + } + + /** + * @brief Attempts to build and insert a std::pair into the + * %unordered_map. + * + * @param __hint An iterator that serves as a hint as to where the pair + * should be inserted. + * @param __k Key to use for finding a possibly existing pair in + * the unordered_map. + * @param __args Arguments used to generate the .second for a + * new pair instance. + * @return An iterator that points to the element with key of the + * std::pair built from @a __args (may or may not be that + * std::pair). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument emplace() + * does. However, if insertion did not take place, + * this function has no effect. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires amortized constant time. + */ + template + iterator + try_emplace(const_iterator __hint, const key_type& __k, + _Args&&... __args) + { + iterator __i = find(__k); + if (__i == end()) + __i = emplace_hint(__hint, std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Args>(__args)...)); + return __i; + } + + // move-capable overload + template + iterator + try_emplace(const_iterator __hint, key_type&& __k, _Args&&... __args) + { + iterator __i = find(__k); + if (__i == end()) + __i = emplace_hint(__hint, std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Args>(__args)...)); + return __i; + } +#endif // C++17 + + //@{ + /** + * @brief Attempts to insert a std::pair into the %unordered_map. + + * @param __x Pair to be inserted (see std::make_pair for easy + * creation of pairs). + * + * @return A pair, of which the first element is an iterator that + * points to the possibly inserted pair, and the second is + * a bool that is true if the pair was actually inserted. + * + * This function attempts to insert a (key, value) %pair into the + * %unordered_map. An %unordered_map relies on unique keys and thus a + * %pair is only inserted if its first element (the key) is not already + * present in the %unordered_map. + * + * Insertion requires amortized constant time. + */ + std::pair + insert(const value_type& __x) + { return _M_h.insert(__x); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + std::pair + insert(value_type&& __x) + { return _M_h.insert(std::move(__x)); } + + template + __enable_if_t::value, + pair> + insert(_Pair&& __x) + { return _M_h.emplace(std::forward<_Pair>(__x)); } + //@} + + //@{ + /** + * @brief Attempts to insert a std::pair into the %unordered_map. + * @param __hint An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __x Pair to be inserted (see std::make_pair for easy creation + * of pairs). + * @return An iterator that points to the element with key of + * @a __x (may or may not be the %pair passed in). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument insert() + * does. Note that the first parameter is only a hint and can + * potentially improve the performance of the insertion process. A bad + * hint would cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires amortized constant time. + */ + iterator + insert(const_iterator __hint, const value_type& __x) + { return _M_h.insert(__hint, __x); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + iterator + insert(const_iterator __hint, value_type&& __x) + { return _M_h.insert(__hint, std::move(__x)); } + + template + __enable_if_t::value, iterator> + insert(const_iterator __hint, _Pair&& __x) + { return _M_h.emplace_hint(__hint, std::forward<_Pair>(__x)); } + //@} + + /** + * @brief A template function that attempts to insert a range of + * elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_h.insert(__first, __last); } + + /** + * @brief Attempts to insert a list of elements into the %unordered_map. + * @param __l A std::initializer_list of elements + * to be inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { _M_h.insert(__l); } + + +#if __cplusplus > 201402L + /** + * @brief Attempts to insert a std::pair into the %unordered_map. + * @param __k Key to use for finding a possibly existing pair in + * the map. + * @param __obj Argument used to generate the .second for a pair + * instance. + * + * @return A pair, of which the first element is an iterator that + * points to the possibly inserted pair, and the second is + * a bool that is true if the pair was actually inserted. + * + * This function attempts to insert a (key, value) %pair into the + * %unordered_map. An %unordered_map relies on unique keys and thus a + * %pair is only inserted if its first element (the key) is not already + * present in the %unordered_map. + * If the %pair was already in the %unordered_map, the .second of + * the %pair is assigned from __obj. + * + * Insertion requires amortized constant time. + */ + template + pair + insert_or_assign(const key_type& __k, _Obj&& __obj) + { + iterator __i = find(__k); + if (__i == end()) + { + __i = emplace(std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple(std::forward<_Obj>(__obj))) + .first; + return {__i, true}; + } + (*__i).second = std::forward<_Obj>(__obj); + return {__i, false}; + } + + // move-capable overload + template + pair + insert_or_assign(key_type&& __k, _Obj&& __obj) + { + iterator __i = find(__k); + if (__i == end()) + { + __i = emplace(std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple(std::forward<_Obj>(__obj))) + .first; + return {__i, true}; + } + (*__i).second = std::forward<_Obj>(__obj); + return {__i, false}; + } + + /** + * @brief Attempts to insert a std::pair into the %unordered_map. + * @param __hint An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __k Key to use for finding a possibly existing pair in + * the unordered_map. + * @param __obj Argument used to generate the .second for a pair + * instance. + * @return An iterator that points to the element with key of + * @a __x (may or may not be the %pair passed in). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument insert() + * does. + * If the %pair was already in the %unordered map, the .second of + * the %pair is assigned from __obj. + * Note that the first parameter is only a hint and can + * potentially improve the performance of the insertion process. A bad + * hint would cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires amortized constant time. + */ + template + iterator + insert_or_assign(const_iterator __hint, const key_type& __k, + _Obj&& __obj) + { + iterator __i = find(__k); + if (__i == end()) + { + return emplace_hint(__hint, std::piecewise_construct, + std::forward_as_tuple(__k), + std::forward_as_tuple( + std::forward<_Obj>(__obj))); + } + (*__i).second = std::forward<_Obj>(__obj); + return __i; + } + + // move-capable overload + template + iterator + insert_or_assign(const_iterator __hint, key_type&& __k, _Obj&& __obj) + { + iterator __i = find(__k); + if (__i == end()) + { + return emplace_hint(__hint, std::piecewise_construct, + std::forward_as_tuple(std::move(__k)), + std::forward_as_tuple( + std::forward<_Obj>(__obj))); + } + (*__i).second = std::forward<_Obj>(__obj); + return __i; + } +#endif + + //@{ + /** + * @brief Erases an element from an %unordered_map. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a __position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from an %unordered_map. + * Note that this function only erases the element, and that if the + * element is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __position) + { return _M_h.erase(__position); } + + // LWG 2059. + iterator + erase(iterator __position) + { return _M_h.erase(__position); } + //@} + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all the elements located by the given key from + * an %unordered_map. For an %unordered_map the result of this function + * can only be 0 (not present) or 1 (present). + * Note that this function only erases the element, and that if the + * element is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_h.erase(__x); } + + /** + * @brief Erases a [__first,__last) range of elements from an + * %unordered_map. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a __last. + * + * This function erases a sequence of elements from an %unordered_map. + * Note that this function only erases the elements, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_h.erase(__first, __last); } + + /** + * Erases all elements in an %unordered_map. + * Note that this function only erases the elements, and that if the + * elements themselves are pointers, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + void + clear() noexcept + { _M_h.clear(); } + + /** + * @brief Swaps data with another %unordered_map. + * @param __x An %unordered_map of the same element and allocator + * types. + * + * This exchanges the elements between two %unordered_map in constant + * time. + * Note that the global std::swap() function is specialized such that + * std::swap(m1,m2) will feed to this function. + */ + void + swap(unordered_map& __x) + noexcept( noexcept(_M_h.swap(__x._M_h)) ) + { _M_h.swap(__x._M_h); } + +#if __cplusplus > 201402L + template + friend class std::_Hash_merge_helper; + + template + void + merge(unordered_map<_Key, _Tp, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper = _Hash_merge_helper; + _M_h._M_merge_unique(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_map<_Key, _Tp, _H2, _P2, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(unordered_multimap<_Key, _Tp, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper = _Hash_merge_helper; + _M_h._M_merge_unique(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_multimap<_Key, _Tp, _H2, _P2, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + + // observers. + + /// Returns the hash functor object with which the %unordered_map was + /// constructed. + hasher + hash_function() const + { return _M_h.hash_function(); } + + /// Returns the key comparison object with which the %unordered_map was + /// constructed. + key_equal + key_eq() const + { return _M_h.key_eq(); } + + // lookup. + + //@{ + /** + * @brief Tries to locate an element in an %unordered_map. + * @param __x Key to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after element. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_h.find(__x); } + + const_iterator + find(const key_type& __x) const + { return _M_h.find(__x); } + //@} + + /** + * @brief Finds the number of elements. + * @param __x Key to count. + * @return Number of elements with specified key. + * + * This function only makes sense for %unordered_multimap; for + * %unordered_map the result will either be 0 (not present) or 1 + * (present). + */ + size_type + count(const key_type& __x) const + { return _M_h.count(__x); } + +#if __cplusplus > 201703L + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of elements to be located. + * @return True if there is any element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_h.find(__x) != _M_h.end(); } +#endif + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + * + * This function probably only makes sense for %unordered_multimap. + */ + std::pair + equal_range(const key_type& __x) + { return _M_h.equal_range(__x); } + + std::pair + equal_range(const key_type& __x) const + { return _M_h.equal_range(__x); } + //@} + + //@{ + /** + * @brief Subscript ( @c [] ) access to %unordered_map data. + * @param __k The key for which data should be retrieved. + * @return A reference to the data of the (key,data) %pair. + * + * Allows for easy lookup with the subscript ( @c [] )operator. Returns + * data associated with the key specified in subscript. If the key does + * not exist, a pair with that key is created using default values, which + * is then returned. + * + * Lookup requires constant time. + */ + mapped_type& + operator[](const key_type& __k) + { return _M_h[__k]; } + + mapped_type& + operator[](key_type&& __k) + { return _M_h[std::move(__k)]; } + //@} + + //@{ + /** + * @brief Access to %unordered_map data. + * @param __k The key for which data should be retrieved. + * @return A reference to the data whose key is equal to @a __k, if + * such a data is present in the %unordered_map. + * @throw std::out_of_range If no such data is present. + */ + mapped_type& + at(const key_type& __k) + { return _M_h.at(__k); } + + const mapped_type& + at(const key_type& __k) const + { return _M_h.at(__k); } + //@} + + // bucket interface. + + /// Returns the number of buckets of the %unordered_map. + size_type + bucket_count() const noexcept + { return _M_h.bucket_count(); } + + /// Returns the maximum number of buckets of the %unordered_map. + size_type + max_bucket_count() const noexcept + { return _M_h.max_bucket_count(); } + + /* + * @brief Returns the number of elements in a given bucket. + * @param __n A bucket index. + * @return The number of elements in the bucket. + */ + size_type + bucket_size(size_type __n) const + { return _M_h.bucket_size(__n); } + + /* + * @brief Returns the bucket index of a given element. + * @param __key A key instance. + * @return The key bucket index. + */ + size_type + bucket(const key_type& __key) const + { return _M_h.bucket(__key); } + + /** + * @brief Returns a read/write iterator pointing to the first bucket + * element. + * @param __n The bucket index. + * @return A read/write local iterator. + */ + local_iterator + begin(size_type __n) + { return _M_h.begin(__n); } + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to the first + * bucket element. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + const_local_iterator + begin(size_type __n) const + { return _M_h.begin(__n); } + + const_local_iterator + cbegin(size_type __n) const + { return _M_h.cbegin(__n); } + //@} + + /** + * @brief Returns a read/write iterator pointing to one past the last + * bucket elements. + * @param __n The bucket index. + * @return A read/write local iterator. + */ + local_iterator + end(size_type __n) + { return _M_h.end(__n); } + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to one past + * the last bucket elements. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + const_local_iterator + end(size_type __n) const + { return _M_h.end(__n); } + + const_local_iterator + cend(size_type __n) const + { return _M_h.cend(__n); } + //@} + + // hash policy. + + /// Returns the average number of elements per bucket. + float + load_factor() const noexcept + { return _M_h.load_factor(); } + + /// Returns a positive number that the %unordered_map tries to keep the + /// load factor less than or equal to. + float + max_load_factor() const noexcept + { return _M_h.max_load_factor(); } + + /** + * @brief Change the %unordered_map maximum load factor. + * @param __z The new maximum load factor. + */ + void + max_load_factor(float __z) + { _M_h.max_load_factor(__z); } + + /** + * @brief May rehash the %unordered_map. + * @param __n The new number of buckets. + * + * Rehash will occur only if the new number of buckets respect the + * %unordered_map maximum load factor. + */ + void + rehash(size_type __n) + { _M_h.rehash(__n); } + + /** + * @brief Prepare the %unordered_map for a specified number of + * elements. + * @param __n Number of elements required. + * + * Same as rehash(ceil(n / max_load_factor())). + */ + void + reserve(size_type __n) + { _M_h.reserve(__n); } + + template + friend bool + operator==(const unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, + const unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&); + }; + +#if __cpp_deduction_guides >= 201606 + + template>, + typename _Pred = equal_to<__iter_key_t<_InputIterator>>, + typename _Allocator = allocator<__iter_to_alloc_t<_InputIterator>>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_map(_InputIterator, _InputIterator, + typename unordered_map::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_map<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, + _Hash, _Pred, _Allocator>; + + template, + typename _Pred = equal_to<_Key>, + typename _Allocator = allocator>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_map(initializer_list>, + typename unordered_map::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_map<_Key, _Tp, _Hash, _Pred, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_map(_InputIterator, _InputIterator, + typename unordered_map::size_type, _Allocator) + -> unordered_map<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, + hash<__iter_key_t<_InputIterator>>, + equal_to<__iter_key_t<_InputIterator>>, + _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_map(_InputIterator, _InputIterator, _Allocator) + -> unordered_map<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, + hash<__iter_key_t<_InputIterator>>, + equal_to<__iter_key_t<_InputIterator>>, + _Allocator>; + + template, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireAllocator<_Allocator>> + unordered_map(_InputIterator, _InputIterator, + typename unordered_map::size_type, + _Hash, _Allocator) + -> unordered_map<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, _Hash, + equal_to<__iter_key_t<_InputIterator>>, _Allocator>; + + template> + unordered_map(initializer_list>, + typename unordered_map::size_type, + _Allocator) + -> unordered_map<_Key, _Tp, hash<_Key>, equal_to<_Key>, _Allocator>; + + template> + unordered_map(initializer_list>, _Allocator) + -> unordered_map<_Key, _Tp, hash<_Key>, equal_to<_Key>, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_map(initializer_list>, + typename unordered_map::size_type, + _Hash, _Allocator) + -> unordered_map<_Key, _Tp, _Hash, equal_to<_Key>, _Allocator>; + +#endif + + /** + * @brief A standard container composed of equivalent keys + * (possibly containing multiple of each key value) that associates + * values of another type with the keys. + * + * @ingroup unordered_associative_containers + * + * @tparam _Key Type of key objects. + * @tparam _Tp Type of mapped objects. + * @tparam _Hash Hashing function object type, defaults to hash<_Value>. + * @tparam _Pred Predicate function object type, defaults + * to equal_to<_Value>. + * @tparam _Alloc Allocator type, defaults to + * std::allocator>. + * + * Meets the requirements of a container, and + * unordered associative container + * + * The resulting value type of the container is std::pair. + * + * Base is _Hashtable, dispatched at compile time via template + * alias __ummap_hashtable. + */ + template, + typename _Pred = equal_to<_Key>, + typename _Alloc = allocator>> + class unordered_multimap + { + typedef __ummap_hashtable<_Key, _Tp, _Hash, _Pred, _Alloc> _Hashtable; + _Hashtable _M_h; + + public: + // typedefs: + //@{ + /// Public typedefs. + typedef typename _Hashtable::key_type key_type; + typedef typename _Hashtable::value_type value_type; + typedef typename _Hashtable::mapped_type mapped_type; + typedef typename _Hashtable::hasher hasher; + typedef typename _Hashtable::key_equal key_equal; + typedef typename _Hashtable::allocator_type allocator_type; + //@} + + //@{ + /// Iterator-related typedefs. + typedef typename _Hashtable::pointer pointer; + typedef typename _Hashtable::const_pointer const_pointer; + typedef typename _Hashtable::reference reference; + typedef typename _Hashtable::const_reference const_reference; + typedef typename _Hashtable::iterator iterator; + typedef typename _Hashtable::const_iterator const_iterator; + typedef typename _Hashtable::local_iterator local_iterator; + typedef typename _Hashtable::const_local_iterator const_local_iterator; + typedef typename _Hashtable::size_type size_type; + typedef typename _Hashtable::difference_type difference_type; + //@} + +#if __cplusplus > 201402L + using node_type = typename _Hashtable::node_type; +#endif + + //construct/destroy/copy + + /// Default constructor. + unordered_multimap() = default; + + /** + * @brief Default constructor creates no elements. + * @param __n Mnimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + */ + explicit + unordered_multimap(size_type __n, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__n, __hf, __eql, __a) + { } + + /** + * @brief Builds an %unordered_multimap from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_multimap consisting of copies of the elements + * from [__first,__last). This is linear in N (where N is + * distance(__first,__last)). + */ + template + unordered_multimap(_InputIterator __first, _InputIterator __last, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__first, __last, __n, __hf, __eql, __a) + { } + + /// Copy constructor. + unordered_multimap(const unordered_multimap&) = default; + + /// Move constructor. + unordered_multimap(unordered_multimap&&) = default; + + /** + * @brief Creates an %unordered_multimap with no elements. + * @param __a An allocator object. + */ + explicit + unordered_multimap(const allocator_type& __a) + : _M_h(__a) + { } + + /* + * @brief Copy constructor with allocator argument. + * @param __uset Input %unordered_multimap to copy. + * @param __a An allocator object. + */ + unordered_multimap(const unordered_multimap& __ummap, + const allocator_type& __a) + : _M_h(__ummap._M_h, __a) + { } + + /* + * @brief Move constructor with allocator argument. + * @param __uset Input %unordered_multimap to move. + * @param __a An allocator object. + */ + unordered_multimap(unordered_multimap&& __ummap, + const allocator_type& __a) + : _M_h(std::move(__ummap._M_h), __a) + { } + + /** + * @brief Builds an %unordered_multimap from an initializer_list. + * @param __l An initializer_list. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_multimap consisting of copies of the elements in + * the list. This is linear in N (where N is @a __l.size()). + */ + unordered_multimap(initializer_list __l, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__l, __n, __hf, __eql, __a) + { } + + unordered_multimap(size_type __n, const allocator_type& __a) + : unordered_multimap(__n, hasher(), key_equal(), __a) + { } + + unordered_multimap(size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_multimap(__n, __hf, key_equal(), __a) + { } + + template + unordered_multimap(_InputIterator __first, _InputIterator __last, + size_type __n, + const allocator_type& __a) + : unordered_multimap(__first, __last, __n, hasher(), key_equal(), __a) + { } + + template + unordered_multimap(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_multimap(__first, __last, __n, __hf, key_equal(), __a) + { } + + unordered_multimap(initializer_list __l, + size_type __n, + const allocator_type& __a) + : unordered_multimap(__l, __n, hasher(), key_equal(), __a) + { } + + unordered_multimap(initializer_list __l, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_multimap(__l, __n, __hf, key_equal(), __a) + { } + + /// Copy assignment operator. + unordered_multimap& + operator=(const unordered_multimap&) = default; + + /// Move assignment operator. + unordered_multimap& + operator=(unordered_multimap&&) = default; + + /** + * @brief %Unordered_multimap list assignment operator. + * @param __l An initializer_list. + * + * This function fills an %unordered_multimap with copies of the + * elements in the initializer list @a __l. + * + * Note that the assignment completely changes the %unordered_multimap + * and that the resulting %unordered_multimap's size is the same as the + * number of elements assigned. + */ + unordered_multimap& + operator=(initializer_list __l) + { + _M_h = __l; + return *this; + } + + /// Returns the allocator object used by the %unordered_multimap. + allocator_type + get_allocator() const noexcept + { return _M_h.get_allocator(); } + + // size and capacity: + + /// Returns true if the %unordered_multimap is empty. + _GLIBCXX_NODISCARD bool + empty() const noexcept + { return _M_h.empty(); } + + /// Returns the size of the %unordered_multimap. + size_type + size() const noexcept + { return _M_h.size(); } + + /// Returns the maximum size of the %unordered_multimap. + size_type + max_size() const noexcept + { return _M_h.max_size(); } + + // iterators. + + /** + * Returns a read/write iterator that points to the first element in the + * %unordered_multimap. + */ + iterator + begin() noexcept + { return _M_h.begin(); } + + //@{ + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %unordered_multimap. + */ + const_iterator + begin() const noexcept + { return _M_h.begin(); } + + const_iterator + cbegin() const noexcept + { return _M_h.begin(); } + //@} + + /** + * Returns a read/write iterator that points one past the last element in + * the %unordered_multimap. + */ + iterator + end() noexcept + { return _M_h.end(); } + + //@{ + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %unordered_multimap. + */ + const_iterator + end() const noexcept + { return _M_h.end(); } + + const_iterator + cend() const noexcept + { return _M_h.end(); } + //@} + + // modifiers. + + /** + * @brief Attempts to build and insert a std::pair into the + * %unordered_multimap. + * + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * + * @return An iterator that points to the inserted pair. + * + * This function attempts to build and insert a (key, value) %pair into + * the %unordered_multimap. + * + * Insertion requires amortized constant time. + */ + template + iterator + emplace(_Args&&... __args) + { return _M_h.emplace(std::forward<_Args>(__args)...); } + + /** + * @brief Attempts to build and insert a std::pair into the + * %unordered_multimap. + * + * @param __pos An iterator that serves as a hint as to where the pair + * should be inserted. + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * @return An iterator that points to the element with key of the + * std::pair built from @a __args. + * + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires amortized constant time. + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { return _M_h.emplace_hint(__pos, std::forward<_Args>(__args)...); } + + //@{ + /** + * @brief Inserts a std::pair into the %unordered_multimap. + * @param __x Pair to be inserted (see std::make_pair for easy + * creation of pairs). + * + * @return An iterator that points to the inserted pair. + * + * Insertion requires amortized constant time. + */ + iterator + insert(const value_type& __x) + { return _M_h.insert(__x); } + + iterator + insert(value_type&& __x) + { return _M_h.insert(std::move(__x)); } + + template + __enable_if_t::value, iterator> + insert(_Pair&& __x) + { return _M_h.emplace(std::forward<_Pair>(__x)); } + //@} + + //@{ + /** + * @brief Inserts a std::pair into the %unordered_multimap. + * @param __hint An iterator that serves as a hint as to where the + * pair should be inserted. + * @param __x Pair to be inserted (see std::make_pair for easy creation + * of pairs). + * @return An iterator that points to the element with key of + * @a __x (may or may not be the %pair passed in). + * + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * See + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * for more on @a hinting. + * + * Insertion requires amortized constant time. + */ + iterator + insert(const_iterator __hint, const value_type& __x) + { return _M_h.insert(__hint, __x); } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2354. Unnecessary copying when inserting into maps with braced-init + iterator + insert(const_iterator __hint, value_type&& __x) + { return _M_h.insert(__hint, std::move(__x)); } + + template + __enable_if_t::value, iterator> + insert(const_iterator __hint, _Pair&& __x) + { return _M_h.emplace_hint(__hint, std::forward<_Pair>(__x)); } + //@} + + /** + * @brief A template function that attempts to insert a range of + * elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_h.insert(__first, __last); } + + /** + * @brief Attempts to insert a list of elements into the + * %unordered_multimap. + * @param __l A std::initializer_list of elements + * to be inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { _M_h.insert(__l); } + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_h.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __key) + { return _M_h.extract(__key); } + + /// Re-insert an extracted node. + iterator + insert(node_type&& __nh) + { return _M_h._M_reinsert_node_multi(cend(), std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator __hint, node_type&& __nh) + { return _M_h._M_reinsert_node_multi(__hint, std::move(__nh)); } +#endif // C++17 + + //@{ + /** + * @brief Erases an element from an %unordered_multimap. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a __position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from an %unordered_multimap. + * Note that this function only erases the element, and that if the + * element is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __position) + { return _M_h.erase(__position); } + + // LWG 2059. + iterator + erase(iterator __position) + { return _M_h.erase(__position); } + //@} + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of elements to be erased. + * @return The number of elements erased. + * + * This function erases all the elements located by the given key from + * an %unordered_multimap. + * Note that this function only erases the element, and that if the + * element is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_h.erase(__x); } + + /** + * @brief Erases a [__first,__last) range of elements from an + * %unordered_multimap. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a __last. + * + * This function erases a sequence of elements from an + * %unordered_multimap. + * Note that this function only erases the elements, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_h.erase(__first, __last); } + + /** + * Erases all elements in an %unordered_multimap. + * Note that this function only erases the elements, and that if the + * elements themselves are pointers, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + void + clear() noexcept + { _M_h.clear(); } + + /** + * @brief Swaps data with another %unordered_multimap. + * @param __x An %unordered_multimap of the same element and allocator + * types. + * + * This exchanges the elements between two %unordered_multimap in + * constant time. + * Note that the global std::swap() function is specialized such that + * std::swap(m1,m2) will feed to this function. + */ + void + swap(unordered_multimap& __x) + noexcept( noexcept(_M_h.swap(__x._M_h)) ) + { _M_h.swap(__x._M_h); } + +#if __cplusplus > 201402L + template + friend class std::_Hash_merge_helper; + + template + void + merge(unordered_multimap<_Key, _Tp, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper + = _Hash_merge_helper; + _M_h._M_merge_multi(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_multimap<_Key, _Tp, _H2, _P2, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(unordered_map<_Key, _Tp, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper + = _Hash_merge_helper; + _M_h._M_merge_multi(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_map<_Key, _Tp, _H2, _P2, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + + // observers. + + /// Returns the hash functor object with which the %unordered_multimap + /// was constructed. + hasher + hash_function() const + { return _M_h.hash_function(); } + + /// Returns the key comparison object with which the %unordered_multimap + /// was constructed. + key_equal + key_eq() const + { return _M_h.key_eq(); } + + // lookup. + + //@{ + /** + * @brief Tries to locate an element in an %unordered_multimap. + * @param __x Key to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after element. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_h.find(__x); } + + const_iterator + find(const key_type& __x) const + { return _M_h.find(__x); } + //@} + + /** + * @brief Finds the number of elements. + * @param __x Key to count. + * @return Number of elements with specified key. + */ + size_type + count(const key_type& __x) const + { return _M_h.count(__x); } + +#if __cplusplus > 201703L + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of elements to be located. + * @return True if there is any element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_h.find(__x) != _M_h.end(); } +#endif + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + */ + std::pair + equal_range(const key_type& __x) + { return _M_h.equal_range(__x); } + + std::pair + equal_range(const key_type& __x) const + { return _M_h.equal_range(__x); } + //@} + + // bucket interface. + + /// Returns the number of buckets of the %unordered_multimap. + size_type + bucket_count() const noexcept + { return _M_h.bucket_count(); } + + /// Returns the maximum number of buckets of the %unordered_multimap. + size_type + max_bucket_count() const noexcept + { return _M_h.max_bucket_count(); } + + /* + * @brief Returns the number of elements in a given bucket. + * @param __n A bucket index. + * @return The number of elements in the bucket. + */ + size_type + bucket_size(size_type __n) const + { return _M_h.bucket_size(__n); } + + /* + * @brief Returns the bucket index of a given element. + * @param __key A key instance. + * @return The key bucket index. + */ + size_type + bucket(const key_type& __key) const + { return _M_h.bucket(__key); } + + /** + * @brief Returns a read/write iterator pointing to the first bucket + * element. + * @param __n The bucket index. + * @return A read/write local iterator. + */ + local_iterator + begin(size_type __n) + { return _M_h.begin(__n); } + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to the first + * bucket element. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + const_local_iterator + begin(size_type __n) const + { return _M_h.begin(__n); } + + const_local_iterator + cbegin(size_type __n) const + { return _M_h.cbegin(__n); } + //@} + + /** + * @brief Returns a read/write iterator pointing to one past the last + * bucket elements. + * @param __n The bucket index. + * @return A read/write local iterator. + */ + local_iterator + end(size_type __n) + { return _M_h.end(__n); } + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to one past + * the last bucket elements. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + const_local_iterator + end(size_type __n) const + { return _M_h.end(__n); } + + const_local_iterator + cend(size_type __n) const + { return _M_h.cend(__n); } + //@} + + // hash policy. + + /// Returns the average number of elements per bucket. + float + load_factor() const noexcept + { return _M_h.load_factor(); } + + /// Returns a positive number that the %unordered_multimap tries to keep + /// the load factor less than or equal to. + float + max_load_factor() const noexcept + { return _M_h.max_load_factor(); } + + /** + * @brief Change the %unordered_multimap maximum load factor. + * @param __z The new maximum load factor. + */ + void + max_load_factor(float __z) + { _M_h.max_load_factor(__z); } + + /** + * @brief May rehash the %unordered_multimap. + * @param __n The new number of buckets. + * + * Rehash will occur only if the new number of buckets respect the + * %unordered_multimap maximum load factor. + */ + void + rehash(size_type __n) + { _M_h.rehash(__n); } + + /** + * @brief Prepare the %unordered_multimap for a specified number of + * elements. + * @param __n Number of elements required. + * + * Same as rehash(ceil(n / max_load_factor())). + */ + void + reserve(size_type __n) + { _M_h.reserve(__n); } + + template + friend bool + operator==(const unordered_multimap<_Key1, _Tp1, + _Hash1, _Pred1, _Alloc1>&, + const unordered_multimap<_Key1, _Tp1, + _Hash1, _Pred1, _Alloc1>&); + }; + +#if __cpp_deduction_guides >= 201606 + + template>, + typename _Pred = equal_to<__iter_key_t<_InputIterator>>, + typename _Allocator = allocator<__iter_to_alloc_t<_InputIterator>>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_multimap(_InputIterator, _InputIterator, + unordered_multimap::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), + _Allocator = _Allocator()) + -> unordered_multimap<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, _Hash, _Pred, + _Allocator>; + + template, + typename _Pred = equal_to<_Key>, + typename _Allocator = allocator>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_multimap(initializer_list>, + unordered_multimap::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), + _Allocator = _Allocator()) + -> unordered_multimap<_Key, _Tp, _Hash, _Pred, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_multimap(_InputIterator, _InputIterator, + unordered_multimap::size_type, _Allocator) + -> unordered_multimap<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, + hash<__iter_key_t<_InputIterator>>, + equal_to<__iter_key_t<_InputIterator>>, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_multimap(_InputIterator, _InputIterator, _Allocator) + -> unordered_multimap<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, + hash<__iter_key_t<_InputIterator>>, + equal_to<__iter_key_t<_InputIterator>>, _Allocator>; + + template, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireAllocator<_Allocator>> + unordered_multimap(_InputIterator, _InputIterator, + unordered_multimap::size_type, _Hash, + _Allocator) + -> unordered_multimap<__iter_key_t<_InputIterator>, + __iter_val_t<_InputIterator>, _Hash, + equal_to<__iter_key_t<_InputIterator>>, _Allocator>; + + template> + unordered_multimap(initializer_list>, + unordered_multimap::size_type, + _Allocator) + -> unordered_multimap<_Key, _Tp, hash<_Key>, equal_to<_Key>, _Allocator>; + + template> + unordered_multimap(initializer_list>, _Allocator) + -> unordered_multimap<_Key, _Tp, hash<_Key>, equal_to<_Key>, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_multimap(initializer_list>, + unordered_multimap::size_type, + _Hash, _Allocator) + -> unordered_multimap<_Key, _Tp, _Hash, equal_to<_Key>, _Allocator>; + +#endif + + template + inline void + swap(unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, + unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + inline void + swap(unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, + unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + inline bool + operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, + const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) + { return __x._M_h._M_equal(__y._M_h); } + +#if __cpp_impl_three_way_comparison < 201907L + template + inline bool + operator!=(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, + const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) + { return !(__x == __y); } +#endif + + template + inline bool + operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, + const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) + { return __x._M_h._M_equal(__y._M_h); } + +#if __cpp_impl_three_way_comparison < 201907L + template + inline bool + operator!=(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, + const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) + { return !(__x == __y); } +#endif + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus > 201402L + // Allow std::unordered_map access to internals of compatible maps. + template + struct _Hash_merge_helper< + _GLIBCXX_STD_C::unordered_map<_Key, _Val, _Hash1, _Eq1, _Alloc>, + _Hash2, _Eq2> + { + private: + template + using unordered_map = _GLIBCXX_STD_C::unordered_map<_Tp...>; + template + using unordered_multimap = _GLIBCXX_STD_C::unordered_multimap<_Tp...>; + + friend unordered_map<_Key, _Val, _Hash1, _Eq1, _Alloc>; + + static auto& + _S_get_table(unordered_map<_Key, _Val, _Hash2, _Eq2, _Alloc>& __map) + { return __map._M_h; } + + static auto& + _S_get_table(unordered_multimap<_Key, _Val, _Hash2, _Eq2, _Alloc>& __map) + { return __map._M_h; } + }; + + // Allow std::unordered_multimap access to internals of compatible maps. + template + struct _Hash_merge_helper< + _GLIBCXX_STD_C::unordered_multimap<_Key, _Val, _Hash1, _Eq1, _Alloc>, + _Hash2, _Eq2> + { + private: + template + using unordered_map = _GLIBCXX_STD_C::unordered_map<_Tp...>; + template + using unordered_multimap = _GLIBCXX_STD_C::unordered_multimap<_Tp...>; + + friend unordered_multimap<_Key, _Val, _Hash1, _Eq1, _Alloc>; + + static auto& + _S_get_table(unordered_map<_Key, _Val, _Hash2, _Eq2, _Alloc>& __map) + { return __map._M_h; } + + static auto& + _S_get_table(unordered_multimap<_Key, _Val, _Hash2, _Eq2, _Alloc>& __map) + { return __map._M_h; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _UNORDERED_MAP_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/unordered_set.h b/resources/sources/avr-libstdcpp/include/bits/unordered_set.h new file mode 100644 index 000000000..c9c9e9f38 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/unordered_set.h @@ -0,0 +1,1783 @@ +// unordered_set implementation -*- C++ -*- + +// Copyright (C) 2010-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/unordered_set.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{unordered_set} + */ + +#ifndef _UNORDERED_SET_H +#define _UNORDERED_SET_H + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /// Base types for unordered_set. + template + using __uset_traits = __detail::_Hashtable_traits<_Cache, true, true>; + + template, + typename _Pred = std::equal_to<_Value>, + typename _Alloc = std::allocator<_Value>, + typename _Tr = __uset_traits<__cache_default<_Value, _Hash>::value>> + using __uset_hashtable = _Hashtable<_Value, _Value, _Alloc, + __detail::_Identity, _Pred, _Hash, + __detail::_Mod_range_hashing, + __detail::_Default_ranged_hash, + __detail::_Prime_rehash_policy, _Tr>; + + /// Base types for unordered_multiset. + template + using __umset_traits = __detail::_Hashtable_traits<_Cache, true, false>; + + template, + typename _Pred = std::equal_to<_Value>, + typename _Alloc = std::allocator<_Value>, + typename _Tr = __umset_traits<__cache_default<_Value, _Hash>::value>> + using __umset_hashtable = _Hashtable<_Value, _Value, _Alloc, + __detail::_Identity, + _Pred, _Hash, + __detail::_Mod_range_hashing, + __detail::_Default_ranged_hash, + __detail::_Prime_rehash_policy, _Tr>; + + template + class unordered_multiset; + + /** + * @brief A standard container composed of unique keys (containing + * at most one of each key value) in which the elements' keys are + * the elements themselves. + * + * @ingroup unordered_associative_containers + * + * @tparam _Value Type of key objects. + * @tparam _Hash Hashing function object type, defaults to hash<_Value>. + + * @tparam _Pred Predicate function object type, defaults to + * equal_to<_Value>. + * + * @tparam _Alloc Allocator type, defaults to allocator<_Key>. + * + * Meets the requirements of a container, and + * unordered associative container + * + * Base is _Hashtable, dispatched at compile time via template + * alias __uset_hashtable. + */ + template, + typename _Pred = equal_to<_Value>, + typename _Alloc = allocator<_Value>> + class unordered_set + { + typedef __uset_hashtable<_Value, _Hash, _Pred, _Alloc> _Hashtable; + _Hashtable _M_h; + + public: + // typedefs: + //@{ + /// Public typedefs. + typedef typename _Hashtable::key_type key_type; + typedef typename _Hashtable::value_type value_type; + typedef typename _Hashtable::hasher hasher; + typedef typename _Hashtable::key_equal key_equal; + typedef typename _Hashtable::allocator_type allocator_type; + //@} + + //@{ + /// Iterator-related typedefs. + typedef typename _Hashtable::pointer pointer; + typedef typename _Hashtable::const_pointer const_pointer; + typedef typename _Hashtable::reference reference; + typedef typename _Hashtable::const_reference const_reference; + typedef typename _Hashtable::iterator iterator; + typedef typename _Hashtable::const_iterator const_iterator; + typedef typename _Hashtable::local_iterator local_iterator; + typedef typename _Hashtable::const_local_iterator const_local_iterator; + typedef typename _Hashtable::size_type size_type; + typedef typename _Hashtable::difference_type difference_type; + //@} + +#if __cplusplus > 201402L + using node_type = typename _Hashtable::node_type; + using insert_return_type = typename _Hashtable::insert_return_type; +#endif + + // construct/destroy/copy + + /// Default constructor. + unordered_set() = default; + + /** + * @brief Default constructor creates no elements. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + */ + explicit + unordered_set(size_type __n, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__n, __hf, __eql, __a) + { } + + /** + * @brief Builds an %unordered_set from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_set consisting of copies of the elements from + * [__first,__last). This is linear in N (where N is + * distance(__first,__last)). + */ + template + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__first, __last, __n, __hf, __eql, __a) + { } + + /// Copy constructor. + unordered_set(const unordered_set&) = default; + + /// Move constructor. + unordered_set(unordered_set&&) = default; + + /** + * @brief Creates an %unordered_set with no elements. + * @param __a An allocator object. + */ + explicit + unordered_set(const allocator_type& __a) + : _M_h(__a) + { } + + /* + * @brief Copy constructor with allocator argument. + * @param __uset Input %unordered_set to copy. + * @param __a An allocator object. + */ + unordered_set(const unordered_set& __uset, + const allocator_type& __a) + : _M_h(__uset._M_h, __a) + { } + + /* + * @brief Move constructor with allocator argument. + * @param __uset Input %unordered_set to move. + * @param __a An allocator object. + */ + unordered_set(unordered_set&& __uset, + const allocator_type& __a) + : _M_h(std::move(__uset._M_h), __a) + { } + + /** + * @brief Builds an %unordered_set from an initializer_list. + * @param __l An initializer_list. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_set consisting of copies of the elements in the + * list. This is linear in N (where N is @a __l.size()). + */ + unordered_set(initializer_list __l, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__l, __n, __hf, __eql, __a) + { } + + unordered_set(size_type __n, const allocator_type& __a) + : unordered_set(__n, hasher(), key_equal(), __a) + { } + + unordered_set(size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_set(__n, __hf, key_equal(), __a) + { } + + template + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n, + const allocator_type& __a) + : unordered_set(__first, __last, __n, hasher(), key_equal(), __a) + { } + + template + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_set(__first, __last, __n, __hf, key_equal(), __a) + { } + + unordered_set(initializer_list __l, + size_type __n, + const allocator_type& __a) + : unordered_set(__l, __n, hasher(), key_equal(), __a) + { } + + unordered_set(initializer_list __l, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_set(__l, __n, __hf, key_equal(), __a) + { } + + /// Copy assignment operator. + unordered_set& + operator=(const unordered_set&) = default; + + /// Move assignment operator. + unordered_set& + operator=(unordered_set&&) = default; + + /** + * @brief %Unordered_set list assignment operator. + * @param __l An initializer_list. + * + * This function fills an %unordered_set with copies of the elements in + * the initializer list @a __l. + * + * Note that the assignment completely changes the %unordered_set and + * that the resulting %unordered_set's size is the same as the number + * of elements assigned. + */ + unordered_set& + operator=(initializer_list __l) + { + _M_h = __l; + return *this; + } + + /// Returns the allocator object used by the %unordered_set. + allocator_type + get_allocator() const noexcept + { return _M_h.get_allocator(); } + + // size and capacity: + + /// Returns true if the %unordered_set is empty. + _GLIBCXX_NODISCARD bool + empty() const noexcept + { return _M_h.empty(); } + + /// Returns the size of the %unordered_set. + size_type + size() const noexcept + { return _M_h.size(); } + + /// Returns the maximum size of the %unordered_set. + size_type + max_size() const noexcept + { return _M_h.max_size(); } + + // iterators. + + //@{ + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %unordered_set. + */ + iterator + begin() noexcept + { return _M_h.begin(); } + + const_iterator + begin() const noexcept + { return _M_h.begin(); } + //@} + + //@{ + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %unordered_set. + */ + iterator + end() noexcept + { return _M_h.end(); } + + const_iterator + end() const noexcept + { return _M_h.end(); } + //@} + + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %unordered_set. + */ + const_iterator + cbegin() const noexcept + { return _M_h.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %unordered_set. + */ + const_iterator + cend() const noexcept + { return _M_h.end(); } + + // modifiers. + + /** + * @brief Attempts to build and insert an element into the + * %unordered_set. + * @param __args Arguments used to generate an element. + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted element, and the second is a bool + * that is true if the element was actually inserted. + * + * This function attempts to build and insert an element into the + * %unordered_set. An %unordered_set relies on unique keys and thus an + * element is only inserted if it is not already present in the + * %unordered_set. + * + * Insertion requires amortized constant time. + */ + template + std::pair + emplace(_Args&&... __args) + { return _M_h.emplace(std::forward<_Args>(__args)...); } + + /** + * @brief Attempts to insert an element into the %unordered_set. + * @param __pos An iterator that serves as a hint as to where the + * element should be inserted. + * @param __args Arguments used to generate the element to be + * inserted. + * @return An iterator that points to the element with key equivalent to + * the one generated from @a __args (may or may not be the + * element itself). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument emplace() + * does. Note that the first parameter is only a hint and can + * potentially improve the performance of the insertion process. A bad + * hint would cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires amortized constant time. + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { return _M_h.emplace_hint(__pos, std::forward<_Args>(__args)...); } + + //@{ + /** + * @brief Attempts to insert an element into the %unordered_set. + * @param __x Element to be inserted. + * @return A pair, of which the first element is an iterator that points + * to the possibly inserted element, and the second is a bool + * that is true if the element was actually inserted. + * + * This function attempts to insert an element into the %unordered_set. + * An %unordered_set relies on unique keys and thus an element is only + * inserted if it is not already present in the %unordered_set. + * + * Insertion requires amortized constant time. + */ + std::pair + insert(const value_type& __x) + { return _M_h.insert(__x); } + + std::pair + insert(value_type&& __x) + { return _M_h.insert(std::move(__x)); } + //@} + + //@{ + /** + * @brief Attempts to insert an element into the %unordered_set. + * @param __hint An iterator that serves as a hint as to where the + * element should be inserted. + * @param __x Element to be inserted. + * @return An iterator that points to the element with key of + * @a __x (may or may not be the element passed in). + * + * This function is not concerned about whether the insertion took place, + * and thus does not return a boolean like the single-argument insert() + * does. Note that the first parameter is only a hint and can + * potentially improve the performance of the insertion process. A bad + * hint would cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires amortized constant. + */ + iterator + insert(const_iterator __hint, const value_type& __x) + { return _M_h.insert(__hint, __x); } + + iterator + insert(const_iterator __hint, value_type&& __x) + { return _M_h.insert(__hint, std::move(__x)); } + //@} + + /** + * @brief A template function that attempts to insert a range of + * elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_h.insert(__first, __last); } + + /** + * @brief Attempts to insert a list of elements into the %unordered_set. + * @param __l A std::initializer_list of elements + * to be inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { _M_h.insert(__l); } + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_h.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __key) + { return _M_h.extract(__key); } + + /// Re-insert an extracted node. + insert_return_type + insert(node_type&& __nh) + { return _M_h._M_reinsert_node(std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator, node_type&& __nh) + { return _M_h._M_reinsert_node(std::move(__nh)).position; } +#endif // C++17 + + //@{ + /** + * @brief Erases an element from an %unordered_set. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a __position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from an %unordered_set. Note that this function only erases the + * element, and that if the element is itself a pointer, the pointed-to + * memory is not touched in any way. Managing the pointer is the user's + * responsibility. + */ + iterator + erase(const_iterator __position) + { return _M_h.erase(__position); } + + // LWG 2059. + iterator + erase(iterator __position) + { return _M_h.erase(__position); } + //@} + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all the elements located by the given key from + * an %unordered_set. For an %unordered_set the result of this function + * can only be 0 (not present) or 1 (present). + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_h.erase(__x); } + + /** + * @brief Erases a [__first,__last) range of elements from an + * %unordered_set. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a __last. + * + * This function erases a sequence of elements from an %unordered_set. + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_h.erase(__first, __last); } + + /** + * Erases all elements in an %unordered_set. Note that this function only + * erases the elements, and that if the elements themselves are pointers, + * the pointed-to memory is not touched in any way. Managing the pointer + * is the user's responsibility. + */ + void + clear() noexcept + { _M_h.clear(); } + + /** + * @brief Swaps data with another %unordered_set. + * @param __x An %unordered_set of the same element and allocator + * types. + * + * This exchanges the elements between two sets in constant time. + * Note that the global std::swap() function is specialized such that + * std::swap(s1,s2) will feed to this function. + */ + void + swap(unordered_set& __x) + noexcept( noexcept(_M_h.swap(__x._M_h)) ) + { _M_h.swap(__x._M_h); } + +#if __cplusplus > 201402L + template + friend class std::_Hash_merge_helper; + + template + void + merge(unordered_set<_Value, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper = _Hash_merge_helper; + _M_h._M_merge_unique(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_set<_Value, _H2, _P2, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(unordered_multiset<_Value, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper = _Hash_merge_helper; + _M_h._M_merge_unique(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_multiset<_Value, _H2, _P2, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + + // observers. + + /// Returns the hash functor object with which the %unordered_set was + /// constructed. + hasher + hash_function() const + { return _M_h.hash_function(); } + + /// Returns the key comparison object with which the %unordered_set was + /// constructed. + key_equal + key_eq() const + { return _M_h.key_eq(); } + + // lookup. + + //@{ + /** + * @brief Tries to locate an element in an %unordered_set. + * @param __x Element to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after element. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_h.find(__x); } + + const_iterator + find(const key_type& __x) const + { return _M_h.find(__x); } + //@} + + /** + * @brief Finds the number of elements. + * @param __x Element to located. + * @return Number of elements with specified key. + * + * This function only makes sense for unordered_multisets; for + * unordered_set the result will either be 0 (not present) or 1 + * (present). + */ + size_type + count(const key_type& __x) const + { return _M_h.count(__x); } + +#if __cplusplus > 201703L + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of elements to be located. + * @return True if there is any element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_h.find(__x) != _M_h.end(); } +#endif + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + * + * This function probably only makes sense for multisets. + */ + std::pair + equal_range(const key_type& __x) + { return _M_h.equal_range(__x); } + + std::pair + equal_range(const key_type& __x) const + { return _M_h.equal_range(__x); } + //@} + + // bucket interface. + + /// Returns the number of buckets of the %unordered_set. + size_type + bucket_count() const noexcept + { return _M_h.bucket_count(); } + + /// Returns the maximum number of buckets of the %unordered_set. + size_type + max_bucket_count() const noexcept + { return _M_h.max_bucket_count(); } + + /* + * @brief Returns the number of elements in a given bucket. + * @param __n A bucket index. + * @return The number of elements in the bucket. + */ + size_type + bucket_size(size_type __n) const + { return _M_h.bucket_size(__n); } + + /* + * @brief Returns the bucket index of a given element. + * @param __key A key instance. + * @return The key bucket index. + */ + size_type + bucket(const key_type& __key) const + { return _M_h.bucket(__key); } + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to the first + * bucket element. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + local_iterator + begin(size_type __n) + { return _M_h.begin(__n); } + + const_local_iterator + begin(size_type __n) const + { return _M_h.begin(__n); } + + const_local_iterator + cbegin(size_type __n) const + { return _M_h.cbegin(__n); } + //@} + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to one past + * the last bucket elements. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + local_iterator + end(size_type __n) + { return _M_h.end(__n); } + + const_local_iterator + end(size_type __n) const + { return _M_h.end(__n); } + + const_local_iterator + cend(size_type __n) const + { return _M_h.cend(__n); } + //@} + + // hash policy. + + /// Returns the average number of elements per bucket. + float + load_factor() const noexcept + { return _M_h.load_factor(); } + + /// Returns a positive number that the %unordered_set tries to keep the + /// load factor less than or equal to. + float + max_load_factor() const noexcept + { return _M_h.max_load_factor(); } + + /** + * @brief Change the %unordered_set maximum load factor. + * @param __z The new maximum load factor. + */ + void + max_load_factor(float __z) + { _M_h.max_load_factor(__z); } + + /** + * @brief May rehash the %unordered_set. + * @param __n The new number of buckets. + * + * Rehash will occur only if the new number of buckets respect the + * %unordered_set maximum load factor. + */ + void + rehash(size_type __n) + { _M_h.rehash(__n); } + + /** + * @brief Prepare the %unordered_set for a specified number of + * elements. + * @param __n Number of elements required. + * + * Same as rehash(ceil(n / max_load_factor())). + */ + void + reserve(size_type __n) + { _M_h.reserve(__n); } + + template + friend bool + operator==(const unordered_set<_Value1, _Hash1, _Pred1, _Alloc1>&, + const unordered_set<_Value1, _Hash1, _Pred1, _Alloc1>&); + }; + +#if __cpp_deduction_guides >= 201606 + + template::value_type>, + typename _Pred = + equal_to::value_type>, + typename _Allocator = + allocator::value_type>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_set(_InputIterator, _InputIterator, + unordered_set::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_set::value_type, + _Hash, _Pred, _Allocator>; + + template, + typename _Pred = equal_to<_Tp>, + typename _Allocator = allocator<_Tp>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_set(initializer_list<_Tp>, + unordered_set::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_set<_Tp, _Hash, _Pred, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_set(_InputIterator, _InputIterator, + unordered_set::size_type, _Allocator) + -> unordered_set::value_type, + hash< + typename iterator_traits<_InputIterator>::value_type>, + equal_to< + typename iterator_traits<_InputIterator>::value_type>, + _Allocator>; + + template, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireAllocator<_Allocator>> + unordered_set(_InputIterator, _InputIterator, + unordered_set::size_type, + _Hash, _Allocator) + -> unordered_set::value_type, + _Hash, + equal_to< + typename iterator_traits<_InputIterator>::value_type>, + _Allocator>; + + template> + unordered_set(initializer_list<_Tp>, + unordered_set::size_type, _Allocator) + -> unordered_set<_Tp, hash<_Tp>, equal_to<_Tp>, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_set(initializer_list<_Tp>, + unordered_set::size_type, _Hash, _Allocator) + -> unordered_set<_Tp, _Hash, equal_to<_Tp>, _Allocator>; + +#endif + + /** + * @brief A standard container composed of equivalent keys + * (possibly containing multiple of each key value) in which the + * elements' keys are the elements themselves. + * + * @ingroup unordered_associative_containers + * + * @tparam _Value Type of key objects. + * @tparam _Hash Hashing function object type, defaults to hash<_Value>. + * @tparam _Pred Predicate function object type, defaults + * to equal_to<_Value>. + * @tparam _Alloc Allocator type, defaults to allocator<_Key>. + * + * Meets the requirements of a container, and + * unordered associative container + * + * Base is _Hashtable, dispatched at compile time via template + * alias __umset_hashtable. + */ + template, + typename _Pred = equal_to<_Value>, + typename _Alloc = allocator<_Value>> + class unordered_multiset + { + typedef __umset_hashtable<_Value, _Hash, _Pred, _Alloc> _Hashtable; + _Hashtable _M_h; + + public: + // typedefs: + //@{ + /// Public typedefs. + typedef typename _Hashtable::key_type key_type; + typedef typename _Hashtable::value_type value_type; + typedef typename _Hashtable::hasher hasher; + typedef typename _Hashtable::key_equal key_equal; + typedef typename _Hashtable::allocator_type allocator_type; + //@} + + //@{ + /// Iterator-related typedefs. + typedef typename _Hashtable::pointer pointer; + typedef typename _Hashtable::const_pointer const_pointer; + typedef typename _Hashtable::reference reference; + typedef typename _Hashtable::const_reference const_reference; + typedef typename _Hashtable::iterator iterator; + typedef typename _Hashtable::const_iterator const_iterator; + typedef typename _Hashtable::local_iterator local_iterator; + typedef typename _Hashtable::const_local_iterator const_local_iterator; + typedef typename _Hashtable::size_type size_type; + typedef typename _Hashtable::difference_type difference_type; + //@} + +#if __cplusplus > 201402L + using node_type = typename _Hashtable::node_type; +#endif + + // construct/destroy/copy + + /// Default constructor. + unordered_multiset() = default; + + /** + * @brief Default constructor creates no elements. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + */ + explicit + unordered_multiset(size_type __n, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__n, __hf, __eql, __a) + { } + + /** + * @brief Builds an %unordered_multiset from a range. + * @param __first An input iterator. + * @param __last An input iterator. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_multiset consisting of copies of the elements + * from [__first,__last). This is linear in N (where N is + * distance(__first,__last)). + */ + template + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__first, __last, __n, __hf, __eql, __a) + { } + + /// Copy constructor. + unordered_multiset(const unordered_multiset&) = default; + + /// Move constructor. + unordered_multiset(unordered_multiset&&) = default; + + /** + * @brief Builds an %unordered_multiset from an initializer_list. + * @param __l An initializer_list. + * @param __n Minimal initial number of buckets. + * @param __hf A hash functor. + * @param __eql A key equality functor. + * @param __a An allocator object. + * + * Create an %unordered_multiset consisting of copies of the elements in + * the list. This is linear in N (where N is @a __l.size()). + */ + unordered_multiset(initializer_list __l, + size_type __n = 0, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal(), + const allocator_type& __a = allocator_type()) + : _M_h(__l, __n, __hf, __eql, __a) + { } + + /// Copy assignment operator. + unordered_multiset& + operator=(const unordered_multiset&) = default; + + /// Move assignment operator. + unordered_multiset& + operator=(unordered_multiset&&) = default; + + /** + * @brief Creates an %unordered_multiset with no elements. + * @param __a An allocator object. + */ + explicit + unordered_multiset(const allocator_type& __a) + : _M_h(__a) + { } + + /* + * @brief Copy constructor with allocator argument. + * @param __uset Input %unordered_multiset to copy. + * @param __a An allocator object. + */ + unordered_multiset(const unordered_multiset& __umset, + const allocator_type& __a) + : _M_h(__umset._M_h, __a) + { } + + /* + * @brief Move constructor with allocator argument. + * @param __umset Input %unordered_multiset to move. + * @param __a An allocator object. + */ + unordered_multiset(unordered_multiset&& __umset, + const allocator_type& __a) + : _M_h(std::move(__umset._M_h), __a) + { } + + unordered_multiset(size_type __n, const allocator_type& __a) + : unordered_multiset(__n, hasher(), key_equal(), __a) + { } + + unordered_multiset(size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_multiset(__n, __hf, key_equal(), __a) + { } + + template + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n, + const allocator_type& __a) + : unordered_multiset(__first, __last, __n, hasher(), key_equal(), __a) + { } + + template + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_multiset(__first, __last, __n, __hf, key_equal(), __a) + { } + + unordered_multiset(initializer_list __l, + size_type __n, + const allocator_type& __a) + : unordered_multiset(__l, __n, hasher(), key_equal(), __a) + { } + + unordered_multiset(initializer_list __l, + size_type __n, const hasher& __hf, + const allocator_type& __a) + : unordered_multiset(__l, __n, __hf, key_equal(), __a) + { } + + /** + * @brief %Unordered_multiset list assignment operator. + * @param __l An initializer_list. + * + * This function fills an %unordered_multiset with copies of the elements + * in the initializer list @a __l. + * + * Note that the assignment completely changes the %unordered_multiset + * and that the resulting %unordered_multiset's size is the same as the + * number of elements assigned. + */ + unordered_multiset& + operator=(initializer_list __l) + { + _M_h = __l; + return *this; + } + + /// Returns the allocator object used by the %unordered_multiset. + allocator_type + get_allocator() const noexcept + { return _M_h.get_allocator(); } + + // size and capacity: + + /// Returns true if the %unordered_multiset is empty. + _GLIBCXX_NODISCARD bool + empty() const noexcept + { return _M_h.empty(); } + + /// Returns the size of the %unordered_multiset. + size_type + size() const noexcept + { return _M_h.size(); } + + /// Returns the maximum size of the %unordered_multiset. + size_type + max_size() const noexcept + { return _M_h.max_size(); } + + // iterators. + + //@{ + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %unordered_multiset. + */ + iterator + begin() noexcept + { return _M_h.begin(); } + + const_iterator + begin() const noexcept + { return _M_h.begin(); } + //@} + + //@{ + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %unordered_multiset. + */ + iterator + end() noexcept + { return _M_h.end(); } + + const_iterator + end() const noexcept + { return _M_h.end(); } + //@} + + /** + * Returns a read-only (constant) iterator that points to the first + * element in the %unordered_multiset. + */ + const_iterator + cbegin() const noexcept + { return _M_h.begin(); } + + /** + * Returns a read-only (constant) iterator that points one past the last + * element in the %unordered_multiset. + */ + const_iterator + cend() const noexcept + { return _M_h.end(); } + + // modifiers. + + /** + * @brief Builds and insert an element into the %unordered_multiset. + * @param __args Arguments used to generate an element. + * @return An iterator that points to the inserted element. + * + * Insertion requires amortized constant time. + */ + template + iterator + emplace(_Args&&... __args) + { return _M_h.emplace(std::forward<_Args>(__args)...); } + + /** + * @brief Inserts an element into the %unordered_multiset. + * @param __pos An iterator that serves as a hint as to where the + * element should be inserted. + * @param __args Arguments used to generate the element to be + * inserted. + * @return An iterator that points to the inserted element. + * + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires amortized constant time. + */ + template + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { return _M_h.emplace_hint(__pos, std::forward<_Args>(__args)...); } + + //@{ + /** + * @brief Inserts an element into the %unordered_multiset. + * @param __x Element to be inserted. + * @return An iterator that points to the inserted element. + * + * Insertion requires amortized constant time. + */ + iterator + insert(const value_type& __x) + { return _M_h.insert(__x); } + + iterator + insert(value_type&& __x) + { return _M_h.insert(std::move(__x)); } + //@} + + //@{ + /** + * @brief Inserts an element into the %unordered_multiset. + * @param __hint An iterator that serves as a hint as to where the + * element should be inserted. + * @param __x Element to be inserted. + * @return An iterator that points to the inserted element. + * + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * For more on @a hinting, see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints + * + * Insertion requires amortized constant. + */ + iterator + insert(const_iterator __hint, const value_type& __x) + { return _M_h.insert(__hint, __x); } + + iterator + insert(const_iterator __hint, value_type&& __x) + { return _M_h.insert(__hint, std::move(__x)); } + //@} + + /** + * @brief A template function that inserts a range of elements. + * @param __first Iterator pointing to the start of the range to be + * inserted. + * @param __last Iterator pointing to the end of the range. + * + * Complexity similar to that of the range constructor. + */ + template + void + insert(_InputIterator __first, _InputIterator __last) + { _M_h.insert(__first, __last); } + + /** + * @brief Inserts a list of elements into the %unordered_multiset. + * @param __l A std::initializer_list of elements to be + * inserted. + * + * Complexity similar to that of the range constructor. + */ + void + insert(initializer_list __l) + { _M_h.insert(__l); } + +#if __cplusplus > 201402L + /// Extract a node. + node_type + extract(const_iterator __pos) + { + __glibcxx_assert(__pos != end()); + return _M_h.extract(__pos); + } + + /// Extract a node. + node_type + extract(const key_type& __key) + { return _M_h.extract(__key); } + + /// Re-insert an extracted node. + iterator + insert(node_type&& __nh) + { return _M_h._M_reinsert_node_multi(cend(), std::move(__nh)); } + + /// Re-insert an extracted node. + iterator + insert(const_iterator __hint, node_type&& __nh) + { return _M_h._M_reinsert_node_multi(__hint, std::move(__nh)); } +#endif // C++17 + + //@{ + /** + * @brief Erases an element from an %unordered_multiset. + * @param __position An iterator pointing to the element to be erased. + * @return An iterator pointing to the element immediately following + * @a __position prior to the element being erased. If no such + * element exists, end() is returned. + * + * This function erases an element, pointed to by the given iterator, + * from an %unordered_multiset. + * + * Note that this function only erases the element, and that if the + * element is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __position) + { return _M_h.erase(__position); } + + // LWG 2059. + iterator + erase(iterator __position) + { return _M_h.erase(__position); } + //@} + + + /** + * @brief Erases elements according to the provided key. + * @param __x Key of element to be erased. + * @return The number of elements erased. + * + * This function erases all the elements located by the given key from + * an %unordered_multiset. + * + * Note that this function only erases the element, and that if the + * element is itself a pointer, the pointed-to memory is not touched in + * any way. Managing the pointer is the user's responsibility. + */ + size_type + erase(const key_type& __x) + { return _M_h.erase(__x); } + + /** + * @brief Erases a [__first,__last) range of elements from an + * %unordered_multiset. + * @param __first Iterator pointing to the start of the range to be + * erased. + * @param __last Iterator pointing to the end of the range to + * be erased. + * @return The iterator @a __last. + * + * This function erases a sequence of elements from an + * %unordered_multiset. + * + * Note that this function only erases the element, and that if + * the element is itself a pointer, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + iterator + erase(const_iterator __first, const_iterator __last) + { return _M_h.erase(__first, __last); } + + /** + * Erases all elements in an %unordered_multiset. + * + * Note that this function only erases the elements, and that if the + * elements themselves are pointers, the pointed-to memory is not touched + * in any way. Managing the pointer is the user's responsibility. + */ + void + clear() noexcept + { _M_h.clear(); } + + /** + * @brief Swaps data with another %unordered_multiset. + * @param __x An %unordered_multiset of the same element and allocator + * types. + * + * This exchanges the elements between two sets in constant time. + * Note that the global std::swap() function is specialized such that + * std::swap(s1,s2) will feed to this function. + */ + void + swap(unordered_multiset& __x) + noexcept( noexcept(_M_h.swap(__x._M_h)) ) + { _M_h.swap(__x._M_h); } + +#if __cplusplus > 201402L + template + friend class std::_Hash_merge_helper; + + template + void + merge(unordered_multiset<_Value, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper + = _Hash_merge_helper; + _M_h._M_merge_multi(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_multiset<_Value, _H2, _P2, _Alloc>&& __source) + { merge(__source); } + + template + void + merge(unordered_set<_Value, _H2, _P2, _Alloc>& __source) + { + using _Merge_helper + = _Hash_merge_helper; + _M_h._M_merge_multi(_Merge_helper::_S_get_table(__source)); + } + + template + void + merge(unordered_set<_Value, _H2, _P2, _Alloc>&& __source) + { merge(__source); } +#endif // C++17 + + // observers. + + /// Returns the hash functor object with which the %unordered_multiset + /// was constructed. + hasher + hash_function() const + { return _M_h.hash_function(); } + + /// Returns the key comparison object with which the %unordered_multiset + /// was constructed. + key_equal + key_eq() const + { return _M_h.key_eq(); } + + // lookup. + + //@{ + /** + * @brief Tries to locate an element in an %unordered_multiset. + * @param __x Element to be located. + * @return Iterator pointing to sought-after element, or end() if not + * found. + * + * This function takes a key and tries to locate the element with which + * the key matches. If successful the function returns an iterator + * pointing to the sought after element. If unsuccessful it returns the + * past-the-end ( @c end() ) iterator. + */ + iterator + find(const key_type& __x) + { return _M_h.find(__x); } + + const_iterator + find(const key_type& __x) const + { return _M_h.find(__x); } + //@} + + /** + * @brief Finds the number of elements. + * @param __x Element to located. + * @return Number of elements with specified key. + */ + size_type + count(const key_type& __x) const + { return _M_h.count(__x); } + +#if __cplusplus > 201703L + /** + * @brief Finds whether an element with the given key exists. + * @param __x Key of elements to be located. + * @return True if there is any element with the specified key. + */ + bool + contains(const key_type& __x) const + { return _M_h.find(__x) != _M_h.end(); } +#endif + + //@{ + /** + * @brief Finds a subsequence matching given key. + * @param __x Key to be located. + * @return Pair of iterators that possibly points to the subsequence + * matching given key. + */ + std::pair + equal_range(const key_type& __x) + { return _M_h.equal_range(__x); } + + std::pair + equal_range(const key_type& __x) const + { return _M_h.equal_range(__x); } + //@} + + // bucket interface. + + /// Returns the number of buckets of the %unordered_multiset. + size_type + bucket_count() const noexcept + { return _M_h.bucket_count(); } + + /// Returns the maximum number of buckets of the %unordered_multiset. + size_type + max_bucket_count() const noexcept + { return _M_h.max_bucket_count(); } + + /* + * @brief Returns the number of elements in a given bucket. + * @param __n A bucket index. + * @return The number of elements in the bucket. + */ + size_type + bucket_size(size_type __n) const + { return _M_h.bucket_size(__n); } + + /* + * @brief Returns the bucket index of a given element. + * @param __key A key instance. + * @return The key bucket index. + */ + size_type + bucket(const key_type& __key) const + { return _M_h.bucket(__key); } + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to the first + * bucket element. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + local_iterator + begin(size_type __n) + { return _M_h.begin(__n); } + + const_local_iterator + begin(size_type __n) const + { return _M_h.begin(__n); } + + const_local_iterator + cbegin(size_type __n) const + { return _M_h.cbegin(__n); } + //@} + + //@{ + /** + * @brief Returns a read-only (constant) iterator pointing to one past + * the last bucket elements. + * @param __n The bucket index. + * @return A read-only local iterator. + */ + local_iterator + end(size_type __n) + { return _M_h.end(__n); } + + const_local_iterator + end(size_type __n) const + { return _M_h.end(__n); } + + const_local_iterator + cend(size_type __n) const + { return _M_h.cend(__n); } + //@} + + // hash policy. + + /// Returns the average number of elements per bucket. + float + load_factor() const noexcept + { return _M_h.load_factor(); } + + /// Returns a positive number that the %unordered_multiset tries to keep the + /// load factor less than or equal to. + float + max_load_factor() const noexcept + { return _M_h.max_load_factor(); } + + /** + * @brief Change the %unordered_multiset maximum load factor. + * @param __z The new maximum load factor. + */ + void + max_load_factor(float __z) + { _M_h.max_load_factor(__z); } + + /** + * @brief May rehash the %unordered_multiset. + * @param __n The new number of buckets. + * + * Rehash will occur only if the new number of buckets respect the + * %unordered_multiset maximum load factor. + */ + void + rehash(size_type __n) + { _M_h.rehash(__n); } + + /** + * @brief Prepare the %unordered_multiset for a specified number of + * elements. + * @param __n Number of elements required. + * + * Same as rehash(ceil(n / max_load_factor())). + */ + void + reserve(size_type __n) + { _M_h.reserve(__n); } + + template + friend bool + operator==(const unordered_multiset<_Value1, _Hash1, _Pred1, _Alloc1>&, + const unordered_multiset<_Value1, _Hash1, _Pred1, _Alloc1>&); + }; + + +#if __cpp_deduction_guides >= 201606 + + template::value_type>, + typename _Pred = + equal_to::value_type>, + typename _Allocator = + allocator::value_type>, + typename = _RequireInputIter<_InputIterator>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_multiset(_InputIterator, _InputIterator, + unordered_multiset::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), + _Allocator = _Allocator()) + -> unordered_multiset::value_type, + _Hash, _Pred, _Allocator>; + + template, + typename _Pred = equal_to<_Tp>, + typename _Allocator = allocator<_Tp>, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireNotAllocator<_Pred>, + typename = _RequireAllocator<_Allocator>> + unordered_multiset(initializer_list<_Tp>, + unordered_multiset::size_type = {}, + _Hash = _Hash(), _Pred = _Pred(), + _Allocator = _Allocator()) + -> unordered_multiset<_Tp, _Hash, _Pred, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_multiset(_InputIterator, _InputIterator, + unordered_multiset::size_type, _Allocator) + -> unordered_multiset::value_type, + hash::value_type>, + equal_to::value_type>, + _Allocator>; + + template, + typename = _RequireNotAllocatorOrIntegral<_Hash>, + typename = _RequireAllocator<_Allocator>> + unordered_multiset(_InputIterator, _InputIterator, + unordered_multiset::size_type, + _Hash, _Allocator) + -> unordered_multiset::value_type, + _Hash, + equal_to< + typename + iterator_traits<_InputIterator>::value_type>, + _Allocator>; + + template> + unordered_multiset(initializer_list<_Tp>, + unordered_multiset::size_type, _Allocator) + -> unordered_multiset<_Tp, hash<_Tp>, equal_to<_Tp>, _Allocator>; + + template, + typename = _RequireAllocator<_Allocator>> + unordered_multiset(initializer_list<_Tp>, + unordered_multiset::size_type, _Hash, _Allocator) + -> unordered_multiset<_Tp, _Hash, equal_to<_Tp>, _Allocator>; + +#endif + + template + inline void + swap(unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, + unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + inline void + swap(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, + unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + + template + inline bool + operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) + { return __x._M_h._M_equal(__y._M_h); } + +#if __cpp_impl_three_way_comparison < 201907L + template + inline bool + operator!=(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) + { return !(__x == __y); } +#endif + + template + inline bool + operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) + { return __x._M_h._M_equal(__y._M_h); } + +#if __cpp_impl_three_way_comparison < 201907L + template + inline bool + operator!=(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) + { return !(__x == __y); } +#endif + +_GLIBCXX_END_NAMESPACE_CONTAINER + +#if __cplusplus > 201402L + // Allow std::unordered_set access to internals of compatible sets. + template + struct _Hash_merge_helper< + _GLIBCXX_STD_C::unordered_set<_Val, _Hash1, _Eq1, _Alloc>, _Hash2, _Eq2> + { + private: + template + using unordered_set = _GLIBCXX_STD_C::unordered_set<_Tp...>; + template + using unordered_multiset = _GLIBCXX_STD_C::unordered_multiset<_Tp...>; + + friend unordered_set<_Val, _Hash1, _Eq1, _Alloc>; + + static auto& + _S_get_table(unordered_set<_Val, _Hash2, _Eq2, _Alloc>& __set) + { return __set._M_h; } + + static auto& + _S_get_table(unordered_multiset<_Val, _Hash2, _Eq2, _Alloc>& __set) + { return __set._M_h; } + }; + + // Allow std::unordered_multiset access to internals of compatible sets. + template + struct _Hash_merge_helper< + _GLIBCXX_STD_C::unordered_multiset<_Val, _Hash1, _Eq1, _Alloc>, + _Hash2, _Eq2> + { + private: + template + using unordered_set = _GLIBCXX_STD_C::unordered_set<_Tp...>; + template + using unordered_multiset = _GLIBCXX_STD_C::unordered_multiset<_Tp...>; + + friend unordered_multiset<_Val, _Hash1, _Eq1, _Alloc>; + + static auto& + _S_get_table(unordered_set<_Val, _Hash2, _Eq2, _Alloc>& __set) + { return __set._M_h; } + + static auto& + _S_get_table(unordered_multiset<_Val, _Hash2, _Eq2, _Alloc>& __set) + { return __set._M_h; } + }; +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _UNORDERED_SET_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/uses_allocator.h b/resources/sources/avr-libstdcpp/include/bits/uses_allocator.h new file mode 100644 index 000000000..1832d40d6 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/uses_allocator.h @@ -0,0 +1,195 @@ +// Uses-allocator Construction -*- C++ -*- + +// Copyright (C) 2010-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +#ifndef _USES_ALLOCATOR_H +#define _USES_ALLOCATOR_H 1 + +#if __cplusplus < 201103L +# include +#else + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // This is used for std::experimental::erased_type from Library Fundamentals. + struct __erased_type { }; + + // This also supports the "type-erased allocator" protocol from the + // Library Fundamentals TS, where allocator_type is erased_type. + // The second condition will always be false for types not using the TS. + template + using __is_erased_or_convertible + = __or_, is_same<_Tp, __erased_type>>; + + /// [allocator.tag] + struct allocator_arg_t { explicit allocator_arg_t() = default; }; + + _GLIBCXX17_INLINE constexpr allocator_arg_t allocator_arg = + allocator_arg_t(); + + template> + struct __uses_allocator_helper + : false_type { }; + + template + struct __uses_allocator_helper<_Tp, _Alloc, + __void_t> + : __is_erased_or_convertible<_Alloc, typename _Tp::allocator_type>::type + { }; + + /// [allocator.uses.trait] + template + struct uses_allocator + : __uses_allocator_helper<_Tp, _Alloc>::type + { }; + + struct __uses_alloc_base { }; + + struct __uses_alloc0 : __uses_alloc_base + { + struct _Sink { void _GLIBCXX20_CONSTEXPR operator=(const void*) { } } _M_a; + }; + + template + struct __uses_alloc1 : __uses_alloc_base { const _Alloc* _M_a; }; + + template + struct __uses_alloc2 : __uses_alloc_base { const _Alloc* _M_a; }; + + template + struct __uses_alloc; + + template + struct __uses_alloc + : conditional< + is_constructible<_Tp, allocator_arg_t, const _Alloc&, _Args...>::value, + __uses_alloc1<_Alloc>, + __uses_alloc2<_Alloc>>::type + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2586. Wrong value category used in scoped_allocator_adaptor::construct + static_assert(__or_< + is_constructible<_Tp, allocator_arg_t, const _Alloc&, _Args...>, + is_constructible<_Tp, _Args..., const _Alloc&>>::value, + "construction with an allocator must be possible" + " if uses_allocator is true"); + }; + + template + struct __uses_alloc + : __uses_alloc0 { }; + + template + using __uses_alloc_t = + __uses_alloc::value, _Tp, _Alloc, _Args...>; + + template + _GLIBCXX20_CONSTEXPR + inline __uses_alloc_t<_Tp, _Alloc, _Args...> + __use_alloc(const _Alloc& __a) + { + __uses_alloc_t<_Tp, _Alloc, _Args...> __ret; + __ret._M_a = std::__addressof(__a); + return __ret; + } + + template + void + __use_alloc(const _Alloc&&) = delete; + +#if __cplusplus > 201402L + template + inline constexpr bool uses_allocator_v = + uses_allocator<_Tp, _Alloc>::value; +#endif // C++17 + + template class _Predicate, + typename _Tp, typename _Alloc, typename... _Args> + struct __is_uses_allocator_predicate + : conditional::value, + __or_<_Predicate<_Tp, allocator_arg_t, _Alloc, _Args...>, + _Predicate<_Tp, _Args..., _Alloc>>, + _Predicate<_Tp, _Args...>>::type { }; + + template + struct __is_uses_allocator_constructible + : __is_uses_allocator_predicate + { }; + +#if __cplusplus >= 201402L + template + _GLIBCXX17_INLINE constexpr bool __is_uses_allocator_constructible_v = + __is_uses_allocator_constructible<_Tp, _Alloc, _Args...>::value; +#endif // C++14 + + template + struct __is_nothrow_uses_allocator_constructible + : __is_uses_allocator_predicate + { }; + + +#if __cplusplus >= 201402L + template + _GLIBCXX17_INLINE constexpr bool + __is_nothrow_uses_allocator_constructible_v = + __is_nothrow_uses_allocator_constructible<_Tp, _Alloc, _Args...>::value; +#endif // C++14 + + template + void __uses_allocator_construct_impl(__uses_alloc0 __a, _Tp* __ptr, + _Args&&... __args) + { ::new ((void*)__ptr) _Tp(std::forward<_Args>(__args)...); } + + template + void __uses_allocator_construct_impl(__uses_alloc1<_Alloc> __a, _Tp* __ptr, + _Args&&... __args) + { + ::new ((void*)__ptr) _Tp(allocator_arg, *__a._M_a, + std::forward<_Args>(__args)...); + } + + template + void __uses_allocator_construct_impl(__uses_alloc2<_Alloc> __a, _Tp* __ptr, + _Args&&... __args) + { ::new ((void*)__ptr) _Tp(std::forward<_Args>(__args)..., *__a._M_a); } + + template + void __uses_allocator_construct(const _Alloc& __a, _Tp* __ptr, + _Args&&... __args) + { + std::__uses_allocator_construct_impl( + std::__use_alloc<_Tp, _Alloc, _Args...>(__a), __ptr, + std::forward<_Args>(__args)...); + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif +#endif diff --git a/resources/sources/avr-libstdcpp/include/bits/valarray_after.h b/resources/sources/avr-libstdcpp/include/bits/valarray_after.h new file mode 100644 index 000000000..cf84e17e5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/valarray_after.h @@ -0,0 +1,556 @@ +// The template and inlines for the -*- C++ -*- internal _Meta class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/valarray_after.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _VALARRAY_AFTER_H +#define _VALARRAY_AFTER_H 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +namespace __detail +{ + // + // gslice_array closure. + // + template + class _GBase + { + public: + typedef typename _Dom::value_type value_type; + + _GBase (const _Dom& __e, const valarray& __i) + : _M_expr (__e), _M_index(__i) {} + + value_type + operator[] (size_t __i) const + { return _M_expr[_M_index[__i]]; } + + size_t + size () const + { return _M_index.size(); } + + private: + typename _ValArrayRef<_Dom>::__type _M_expr; + const valarray& _M_index; + }; + + template + class _GBase<_Array<_Tp> > + { + public: + typedef _Tp value_type; + + _GBase (_Array<_Tp> __a, const valarray& __i) + : _M_array (__a), _M_index(__i) {} + + value_type + operator[] (size_t __i) const + { return _M_array._M_data[_M_index[__i]]; } + + size_t + size () const + { return _M_index.size(); } + + private: + const _Array<_Tp> _M_array; + const valarray& _M_index; + }; + + template + struct _GClos<_Expr, _Dom> + : _GBase<_Dom> + { + typedef _GBase<_Dom> _Base; + typedef typename _Base::value_type value_type; + + _GClos (const _Dom& __e, const valarray& __i) + : _Base (__e, __i) {} + }; + + template + struct _GClos<_ValArray, _Tp> + : _GBase<_Array<_Tp> > + { + typedef _GBase<_Array<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _GClos (_Array<_Tp> __a, const valarray& __i) + : _Base (__a, __i) {} + }; + + // + // indirect_array closure + // + template + class _IBase + { + public: + typedef typename _Dom::value_type value_type; + + _IBase (const _Dom& __e, const valarray& __i) + : _M_expr (__e), _M_index (__i) {} + + value_type + operator[] (size_t __i) const + { return _M_expr[_M_index[__i]]; } + + size_t + size() const + { return _M_index.size(); } + + private: + typename _ValArrayRef<_Dom>::__type _M_expr; + const valarray& _M_index; + }; + + template + struct _IClos<_Expr, _Dom> + : _IBase<_Dom> + { + typedef _IBase<_Dom> _Base; + typedef typename _Base::value_type value_type; + + _IClos (const _Dom& __e, const valarray& __i) + : _Base (__e, __i) {} + }; + + template + struct _IClos<_ValArray, _Tp> + : _IBase > + { + typedef _IBase > _Base; + typedef _Tp value_type; + + _IClos (const valarray<_Tp>& __a, const valarray& __i) + : _Base (__a, __i) {} + }; +} // namespace __detail + + // + // class _Expr + // + template + class _Expr + { + public: + typedef _Tp value_type; + + _Expr(const _Clos&); + + const _Clos& operator()() const; + + value_type operator[](size_t) const; + valarray operator[](slice) const; + valarray operator[](const gslice&) const; + valarray operator[](const valarray&) const; + valarray operator[](const valarray&) const; + + _Expr<_UnClos<__unary_plus, std::_Expr, _Clos>, value_type> + operator+() const; + + _Expr<_UnClos<__negate, std::_Expr, _Clos>, value_type> + operator-() const; + + _Expr<_UnClos<__bitwise_not, std::_Expr, _Clos>, value_type> + operator~() const; + + _Expr<_UnClos<__logical_not, std::_Expr, _Clos>, bool> + operator!() const; + + size_t size() const; + value_type sum() const; + + valarray shift(int) const; + valarray cshift(int) const; + + value_type min() const; + value_type max() const; + + valarray apply(value_type (*)(const value_type&)) const; + valarray apply(value_type (*)(value_type)) const; + + private: + const _Clos _M_closure; + }; + + template + inline + _Expr<_Clos, _Tp>::_Expr(const _Clos& __c) : _M_closure(__c) {} + + template + inline const _Clos& + _Expr<_Clos, _Tp>::operator()() const + { return _M_closure; } + + template + inline _Tp + _Expr<_Clos, _Tp>::operator[](size_t __i) const + { return _M_closure[__i]; } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::operator[](slice __s) const + { + valarray<_Tp> __v = valarray<_Tp>(*this)[__s]; + return __v; + } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::operator[](const gslice& __gs) const + { + valarray<_Tp> __v = valarray<_Tp>(*this)[__gs]; + return __v; + } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::operator[](const valarray& __m) const + { + valarray<_Tp> __v = valarray<_Tp>(*this)[__m]; + return __v; + } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::operator[](const valarray& __i) const + { + valarray<_Tp> __v = valarray<_Tp>(*this)[__i]; + return __v; + } + + template + inline size_t + _Expr<_Clos, _Tp>::size() const + { return _M_closure.size(); } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::shift(int __n) const + { + valarray<_Tp> __v = valarray<_Tp>(*this).shift(__n); + return __v; + } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::cshift(int __n) const + { + valarray<_Tp> __v = valarray<_Tp>(*this).cshift(__n); + return __v; + } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::apply(_Tp __f(const _Tp&)) const + { + valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f); + return __v; + } + + template + inline valarray<_Tp> + _Expr<_Clos, _Tp>::apply(_Tp __f(_Tp)) const + { + valarray<_Tp> __v = valarray<_Tp>(*this).apply(__f); + return __v; + } + + // XXX: replace this with a more robust summation algorithm. + template + inline _Tp + _Expr<_Clos, _Tp>::sum() const + { + size_t __n = _M_closure.size(); + if (__n == 0) + return _Tp(); + else + { + _Tp __s = _M_closure[--__n]; + while (__n != 0) + __s += _M_closure[--__n]; + return __s; + } + } + + template + inline _Tp + _Expr<_Clos, _Tp>::min() const + { return __valarray_min(_M_closure); } + + template + inline _Tp + _Expr<_Clos, _Tp>::max() const + { return __valarray_max(_M_closure); } + + template + inline _Expr<_UnClos<__logical_not, _Expr, _Dom>, bool> + _Expr<_Dom, _Tp>::operator!() const + { + typedef _UnClos<__logical_not, std::_Expr, _Dom> _Closure; + return _Expr<_Closure, bool>(_Closure(this->_M_closure)); + } + +#define _DEFINE_EXPR_UNARY_OPERATOR(_Op, _Name) \ + template \ + inline _Expr<_UnClos<_Name, std::_Expr, _Dom>, _Tp> \ + _Expr<_Dom, _Tp>::operator _Op() const \ + { \ + typedef _UnClos<_Name, std::_Expr, _Dom> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(this->_M_closure)); \ + } + + _DEFINE_EXPR_UNARY_OPERATOR(+, __unary_plus) + _DEFINE_EXPR_UNARY_OPERATOR(-, __negate) + _DEFINE_EXPR_UNARY_OPERATOR(~, __bitwise_not) + +#undef _DEFINE_EXPR_UNARY_OPERATOR + +#define _DEFINE_EXPR_BINARY_OPERATOR(_Op, _Name) \ + template \ + inline _Expr<_BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2>, \ + typename __fun<_Name, typename _Dom1::value_type>::result_type> \ + operator _Op(const _Expr<_Dom1, typename _Dom1::value_type>& __v, \ + const _Expr<_Dom2, typename _Dom2::value_type>& __w) \ + { \ + typedef typename _Dom1::value_type _Arg; \ + typedef typename __fun<_Name, _Arg>::result_type _Value; \ + typedef _BinClos<_Name, _Expr, _Expr, _Dom1, _Dom2> _Closure; \ + return _Expr<_Closure, _Value>(_Closure(__v(), __w())); \ + } \ + \ + template \ + inline _Expr<_BinClos<_Name, _Expr, _Constant, _Dom, \ + typename _Dom::value_type>, \ + typename __fun<_Name, typename _Dom::value_type>::result_type> \ + operator _Op(const _Expr<_Dom, typename _Dom::value_type>& __v, \ + const typename _Dom::value_type& __t) \ + { \ + typedef typename _Dom::value_type _Arg; \ + typedef typename __fun<_Name, _Arg>::result_type _Value; \ + typedef _BinClos<_Name, _Expr, _Constant, _Dom, _Arg> _Closure; \ + return _Expr<_Closure, _Value>(_Closure(__v(), __t)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_Name, _Constant, _Expr, \ + typename _Dom::value_type, _Dom>, \ + typename __fun<_Name, typename _Dom::value_type>::result_type> \ + operator _Op(const typename _Dom::value_type& __t, \ + const _Expr<_Dom, typename _Dom::value_type>& __v) \ + { \ + typedef typename _Dom::value_type _Arg; \ + typedef typename __fun<_Name, _Arg>::result_type _Value; \ + typedef _BinClos<_Name, _Constant, _Expr, _Arg, _Dom> _Closure; \ + return _Expr<_Closure, _Value>(_Closure(__t, __v())); \ + } \ + \ + template \ + inline _Expr<_BinClos<_Name, _Expr, _ValArray, \ + _Dom, typename _Dom::value_type>, \ + typename __fun<_Name, typename _Dom::value_type>::result_type> \ + operator _Op(const _Expr<_Dom,typename _Dom::value_type>& __e, \ + const valarray& __v) \ + { \ + typedef typename _Dom::value_type _Arg; \ + typedef typename __fun<_Name, _Arg>::result_type _Value; \ + typedef _BinClos<_Name, _Expr, _ValArray, _Dom, _Arg> _Closure; \ + return _Expr<_Closure, _Value>(_Closure(__e(), __v)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_Name, _ValArray, _Expr, \ + typename _Dom::value_type, _Dom>, \ + typename __fun<_Name, typename _Dom::value_type>::result_type> \ + operator _Op(const valarray& __v, \ + const _Expr<_Dom, typename _Dom::value_type>& __e) \ + { \ + typedef typename _Dom::value_type _Tp; \ + typedef typename __fun<_Name, _Tp>::result_type _Value; \ + typedef _BinClos<_Name, _ValArray, _Expr, _Tp, _Dom> _Closure; \ + return _Expr<_Closure, _Value>(_Closure(__v, __e ())); \ + } + + _DEFINE_EXPR_BINARY_OPERATOR(+, __plus) + _DEFINE_EXPR_BINARY_OPERATOR(-, __minus) + _DEFINE_EXPR_BINARY_OPERATOR(*, __multiplies) + _DEFINE_EXPR_BINARY_OPERATOR(/, __divides) + _DEFINE_EXPR_BINARY_OPERATOR(%, __modulus) + _DEFINE_EXPR_BINARY_OPERATOR(^, __bitwise_xor) + _DEFINE_EXPR_BINARY_OPERATOR(&, __bitwise_and) + _DEFINE_EXPR_BINARY_OPERATOR(|, __bitwise_or) + _DEFINE_EXPR_BINARY_OPERATOR(<<, __shift_left) + _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right) + _DEFINE_EXPR_BINARY_OPERATOR(&&, __logical_and) + _DEFINE_EXPR_BINARY_OPERATOR(||, __logical_or) + _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to) + _DEFINE_EXPR_BINARY_OPERATOR(!=, __not_equal_to) + _DEFINE_EXPR_BINARY_OPERATOR(<, __less) + _DEFINE_EXPR_BINARY_OPERATOR(>, __greater) + _DEFINE_EXPR_BINARY_OPERATOR(<=, __less_equal) + _DEFINE_EXPR_BINARY_OPERATOR(>=, __greater_equal) + +#undef _DEFINE_EXPR_BINARY_OPERATOR + +#define _DEFINE_EXPR_UNARY_FUNCTION(_Name, _UName) \ + template \ + inline _Expr<_UnClos<_UName, _Expr, _Dom>, \ + typename _Dom::value_type> \ + _Name(const _Expr<_Dom, typename _Dom::value_type>& __e) \ + { \ + typedef typename _Dom::value_type _Tp; \ + typedef _UnClos<_UName, _Expr, _Dom> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__e())); \ + } \ + \ + template \ + inline _Expr<_UnClos<_UName, _ValArray, _Tp>, _Tp> \ + _Name(const valarray<_Tp>& __v) \ + { \ + typedef _UnClos<_UName, _ValArray, _Tp> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__v)); \ + } + + _DEFINE_EXPR_UNARY_FUNCTION(abs, _Abs) + _DEFINE_EXPR_UNARY_FUNCTION(cos, _Cos) + _DEFINE_EXPR_UNARY_FUNCTION(acos, _Acos) + _DEFINE_EXPR_UNARY_FUNCTION(cosh, _Cosh) + _DEFINE_EXPR_UNARY_FUNCTION(sin, _Sin) + _DEFINE_EXPR_UNARY_FUNCTION(asin, _Asin) + _DEFINE_EXPR_UNARY_FUNCTION(sinh, _Sinh) + _DEFINE_EXPR_UNARY_FUNCTION(tan, _Tan) + _DEFINE_EXPR_UNARY_FUNCTION(tanh, _Tanh) + _DEFINE_EXPR_UNARY_FUNCTION(atan, _Atan) + _DEFINE_EXPR_UNARY_FUNCTION(exp, _Exp) + _DEFINE_EXPR_UNARY_FUNCTION(log, _Log) + _DEFINE_EXPR_UNARY_FUNCTION(log10, _Log10) + _DEFINE_EXPR_UNARY_FUNCTION(sqrt, _Sqrt) + +#undef _DEFINE_EXPR_UNARY_FUNCTION + +#define _DEFINE_EXPR_BINARY_FUNCTION(_Fun, _UFun) \ + template \ + inline _Expr<_BinClos<_UFun, _Expr, _Expr, _Dom1, _Dom2>, \ + typename _Dom1::value_type> \ + _Fun(const _Expr<_Dom1, typename _Dom1::value_type>& __e1, \ + const _Expr<_Dom2, typename _Dom2::value_type>& __e2) \ + { \ + typedef typename _Dom1::value_type _Tp; \ + typedef _BinClos<_UFun, _Expr, _Expr, _Dom1, _Dom2> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__e1(), __e2())); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _Expr, _ValArray, _Dom, \ + typename _Dom::value_type>, \ + typename _Dom::value_type> \ + _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \ + const valarray& __v) \ + { \ + typedef typename _Dom::value_type _Tp; \ + typedef _BinClos<_UFun, _Expr, _ValArray, _Dom, _Tp> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__e(), __v)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _ValArray, _Expr, \ + typename _Dom::value_type, _Dom>, \ + typename _Dom::value_type> \ + _Fun(const valarray& __v, \ + const _Expr<_Dom, typename _Dom::value_type>& __e) \ + { \ + typedef typename _Dom::value_type _Tp; \ + typedef _BinClos<_UFun, _ValArray, _Expr, _Tp, _Dom> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__v, __e())); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _Expr, _Constant, _Dom, \ + typename _Dom::value_type>, \ + typename _Dom::value_type> \ + _Fun(const _Expr<_Dom, typename _Dom::value_type>& __e, \ + const typename _Dom::value_type& __t) \ + { \ + typedef typename _Dom::value_type _Tp; \ + typedef _BinClos<_UFun, _Expr, _Constant, _Dom, _Tp> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__e(), __t)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _Constant, _Expr, \ + typename _Dom::value_type, _Dom>, \ + typename _Dom::value_type> \ + _Fun(const typename _Dom::value_type& __t, \ + const _Expr<_Dom, typename _Dom::value_type>& __e) \ + { \ + typedef typename _Dom::value_type _Tp; \ + typedef _BinClos<_UFun, _Constant, _Expr, _Tp, _Dom> _Closure; \ + return _Expr<_Closure, _Tp>(_Closure(__t, __e())); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp>, _Tp> \ + _Fun(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \ + { \ + typedef _BinClos<_UFun, _ValArray, _ValArray, _Tp, _Tp> _Closure;\ + return _Expr<_Closure, _Tp>(_Closure(__v, __w)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp>, _Tp> \ + _Fun(const valarray<_Tp>& __v, \ + const typename valarray<_Tp>::value_type& __t) \ + { \ + typedef _BinClos<_UFun, _ValArray, _Constant, _Tp, _Tp> _Closure;\ + return _Expr<_Closure, _Tp>(_Closure(__v, __t)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp>, _Tp> \ + _Fun(const typename valarray<_Tp>::value_type& __t, \ + const valarray<_Tp>& __v) \ + { \ + typedef _BinClos<_UFun, _Constant, _ValArray, _Tp, _Tp> _Closure;\ + return _Expr<_Closure, _Tp>(_Closure(__t, __v)); \ + } + +_DEFINE_EXPR_BINARY_FUNCTION(atan2, _Atan2) +_DEFINE_EXPR_BINARY_FUNCTION(pow, _Pow) + +#undef _DEFINE_EXPR_BINARY_FUNCTION + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _CPP_VALARRAY_AFTER_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/valarray_array.h b/resources/sources/avr-libstdcpp/include/bits/valarray_array.h new file mode 100644 index 000000000..041fbbe25 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/valarray_array.h @@ -0,0 +1,677 @@ +// The template and inlines for the -*- C++ -*- internal _Array helper class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/valarray_array.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _VALARRAY_ARRAY_H +#define _VALARRAY_ARRAY_H 1 + +#pragma GCC system_header + +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // + // Helper functions on raw pointers + // + + // We get memory the old fashioned way + template + _Tp* + __valarray_get_storage(size_t) __attribute__((__malloc__)); + + template + inline _Tp* + __valarray_get_storage(size_t __n) + { return static_cast<_Tp*>(operator new(__n * sizeof(_Tp))); } + + // Return memory to the system + inline void + __valarray_release_memory(void* __p) + { operator delete(__p); } + + // Turn a raw-memory into an array of _Tp filled with _Tp() + // This is required in 'valarray v(n);' + template + struct _Array_default_ctor + { + // Please note that this isn't exception safe. But + // valarrays aren't required to be exception safe. + inline static void + _S_do_it(_Tp* __b, _Tp* __e) + { + while (__b != __e) + new(__b++) _Tp(); + } + }; + + template + struct _Array_default_ctor<_Tp, true> + { + // For fundamental types, it suffices to say 'memset()' + inline static void + _S_do_it(_Tp* __b, _Tp* __e) + { __builtin_memset(__b, 0, (__e - __b) * sizeof(_Tp)); } + }; + + template + inline void + __valarray_default_construct(_Tp* __b, _Tp* __e) + { + _Array_default_ctor<_Tp, __is_scalar<_Tp>::__value>::_S_do_it(__b, __e); + } + + // Turn a raw-memory into an array of _Tp filled with __t + // This is the required in valarray v(n, t). Also + // used in valarray<>::resize(). + template + struct _Array_init_ctor + { + // Please note that this isn't exception safe. But + // valarrays aren't required to be exception safe. + inline static void + _S_do_it(_Tp* __b, _Tp* __e, const _Tp __t) + { + while (__b != __e) + new(__b++) _Tp(__t); + } + }; + + template + struct _Array_init_ctor<_Tp, true> + { + inline static void + _S_do_it(_Tp* __b, _Tp* __e, const _Tp __t) + { + while (__b != __e) + *__b++ = __t; + } + }; + + template + inline void + __valarray_fill_construct(_Tp* __b, _Tp* __e, const _Tp __t) + { + _Array_init_ctor<_Tp, __is_trivial(_Tp)>::_S_do_it(__b, __e, __t); + } + + // + // copy-construct raw array [__o, *) from plain array [__b, __e) + // We can't just say 'memcpy()' + // + template + struct _Array_copy_ctor + { + // Please note that this isn't exception safe. But + // valarrays aren't required to be exception safe. + inline static void + _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o) + { + while (__b != __e) + new(__o++) _Tp(*__b++); + } + }; + + template + struct _Array_copy_ctor<_Tp, true> + { + inline static void + _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o) + { + if (__b) + __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp)); + } + }; + + template + inline void + __valarray_copy_construct(const _Tp* __b, const _Tp* __e, + _Tp* __restrict__ __o) + { + _Array_copy_ctor<_Tp, __is_trivial(_Tp)>::_S_do_it(__b, __e, __o); + } + + // copy-construct raw array [__o, *) from strided array __a[<__n : __s>] + template + inline void + __valarray_copy_construct (const _Tp* __restrict__ __a, size_t __n, + size_t __s, _Tp* __restrict__ __o) + { + if (__is_trivial(_Tp)) + while (__n--) + { + *__o++ = *__a; + __a += __s; + } + else + while (__n--) + { + new(__o++) _Tp(*__a); + __a += __s; + } + } + + // copy-construct raw array [__o, *) from indexed array __a[__i[<__n>]] + template + inline void + __valarray_copy_construct (const _Tp* __restrict__ __a, + const size_t* __restrict__ __i, + _Tp* __restrict__ __o, size_t __n) + { + if (__is_trivial(_Tp)) + while (__n--) + *__o++ = __a[*__i++]; + else + while (__n--) + new (__o++) _Tp(__a[*__i++]); + } + + // Do the necessary cleanup when we're done with arrays. + template + inline void + __valarray_destroy_elements(_Tp* __b, _Tp* __e) + { + if (!__is_trivial(_Tp)) + while (__b != __e) + { + __b->~_Tp(); + ++__b; + } + } + + // Fill a plain array __a[<__n>] with __t + template + inline void + __valarray_fill(_Tp* __restrict__ __a, size_t __n, const _Tp& __t) + { + while (__n--) + *__a++ = __t; + } + + // fill strided array __a[<__n-1 : __s>] with __t + template + inline void + __valarray_fill(_Tp* __restrict__ __a, size_t __n, + size_t __s, const _Tp& __t) + { + for (size_t __i = 0; __i < __n; ++__i, __a += __s) + *__a = __t; + } + + // fill indirect array __a[__i[<__n>]] with __i + template + inline void + __valarray_fill(_Tp* __restrict__ __a, const size_t* __restrict__ __i, + size_t __n, const _Tp& __t) + { + for (size_t __j = 0; __j < __n; ++__j, ++__i) + __a[*__i] = __t; + } + + // copy plain array __a[<__n>] in __b[<__n>] + // For non-fundamental types, it is wrong to say 'memcpy()' + template + struct _Array_copier + { + inline static void + _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b) + { + while(__n--) + *__b++ = *__a++; + } + }; + + template + struct _Array_copier<_Tp, true> + { + inline static void + _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b) + { + if (__n != 0) + __builtin_memcpy(__b, __a, __n * sizeof (_Tp)); + } + }; + + // Copy a plain array __a[<__n>] into a play array __b[<>] + template + inline void + __valarray_copy(const _Tp* __restrict__ __a, size_t __n, + _Tp* __restrict__ __b) + { + _Array_copier<_Tp, __is_trivial(_Tp)>::_S_do_it(__a, __n, __b); + } + + // Copy strided array __a[<__n : __s>] in plain __b[<__n>] + template + inline void + __valarray_copy(const _Tp* __restrict__ __a, size_t __n, size_t __s, + _Tp* __restrict__ __b) + { + for (size_t __i = 0; __i < __n; ++__i, ++__b, __a += __s) + *__b = *__a; + } + + // Copy a plain array __a[<__n>] into a strided array __b[<__n : __s>] + template + inline void + __valarray_copy(const _Tp* __restrict__ __a, _Tp* __restrict__ __b, + size_t __n, size_t __s) + { + for (size_t __i = 0; __i < __n; ++__i, ++__a, __b += __s) + *__b = *__a; + } + + // Copy strided array __src[<__n : __s1>] into another + // strided array __dst[< : __s2>]. Their sizes must match. + template + inline void + __valarray_copy(const _Tp* __restrict__ __src, size_t __n, size_t __s1, + _Tp* __restrict__ __dst, size_t __s2) + { + for (size_t __i = 0; __i < __n; ++__i) + __dst[__i * __s2] = __src[__i * __s1]; + } + + // Copy an indexed array __a[__i[<__n>]] in plain array __b[<__n>] + template + inline void + __valarray_copy(const _Tp* __restrict__ __a, + const size_t* __restrict__ __i, + _Tp* __restrict__ __b, size_t __n) + { + for (size_t __j = 0; __j < __n; ++__j, ++__b, ++__i) + *__b = __a[*__i]; + } + + // Copy a plain array __a[<__n>] in an indexed array __b[__i[<__n>]] + template + inline void + __valarray_copy(const _Tp* __restrict__ __a, size_t __n, + _Tp* __restrict__ __b, const size_t* __restrict__ __i) + { + for (size_t __j = 0; __j < __n; ++__j, ++__a, ++__i) + __b[*__i] = *__a; + } + + // Copy the __n first elements of an indexed array __src[<__i>] into + // another indexed array __dst[<__j>]. + template + inline void + __valarray_copy(const _Tp* __restrict__ __src, size_t __n, + const size_t* __restrict__ __i, + _Tp* __restrict__ __dst, const size_t* __restrict__ __j) + { + for (size_t __k = 0; __k < __n; ++__k) + __dst[*__j++] = __src[*__i++]; + } + + // + // Compute the sum of elements in range [__f, __l) which must not be empty. + // This is a naive algorithm. It suffers from cancelling. + // In the future try to specialize for _Tp = float, double, long double + // using a more accurate algorithm. + // + template + inline _Tp + __valarray_sum(const _Tp* __f, const _Tp* __l) + { + _Tp __r = *__f++; + while (__f != __l) + __r += *__f++; + return __r; + } + + // Compute the min/max of an array-expression + template + inline typename _Ta::value_type + __valarray_min(const _Ta& __a) + { + size_t __s = __a.size(); + typedef typename _Ta::value_type _Value_type; + _Value_type __r = __s == 0 ? _Value_type() : __a[0]; + for (size_t __i = 1; __i < __s; ++__i) + { + _Value_type __t = __a[__i]; + if (__t < __r) + __r = __t; + } + return __r; + } + + template + inline typename _Ta::value_type + __valarray_max(const _Ta& __a) + { + size_t __s = __a.size(); + typedef typename _Ta::value_type _Value_type; + _Value_type __r = __s == 0 ? _Value_type() : __a[0]; + for (size_t __i = 1; __i < __s; ++__i) + { + _Value_type __t = __a[__i]; + if (__t > __r) + __r = __t; + } + return __r; + } + + // + // Helper class _Array, first layer of valarray abstraction. + // All operations on valarray should be forwarded to this class + // whenever possible. -- gdr + // + + template + struct _Array + { + explicit _Array(_Tp* const __restrict__); + explicit _Array(const valarray<_Tp>&); + _Array(const _Tp* __restrict__, size_t); + + _Tp* begin() const; + + _Tp* const __restrict__ _M_data; + }; + + + // Copy-construct plain array __b[<__n>] from indexed array __a[__i[<__n>]] + template + inline void + __valarray_copy_construct(_Array<_Tp> __a, _Array __i, + _Array<_Tp> __b, size_t __n) + { std::__valarray_copy_construct(__a._M_data, __i._M_data, + __b._M_data, __n); } + + // Copy-construct plain array __b[<__n>] from strided array __a[<__n : __s>] + template + inline void + __valarray_copy_construct(_Array<_Tp> __a, size_t __n, size_t __s, + _Array<_Tp> __b) + { std::__valarray_copy_construct(__a._M_data, __n, __s, __b._M_data); } + + template + inline void + __valarray_fill (_Array<_Tp> __a, size_t __n, const _Tp& __t) + { std::__valarray_fill(__a._M_data, __n, __t); } + + template + inline void + __valarray_fill(_Array<_Tp> __a, size_t __n, size_t __s, const _Tp& __t) + { std::__valarray_fill(__a._M_data, __n, __s, __t); } + + template + inline void + __valarray_fill(_Array<_Tp> __a, _Array __i, + size_t __n, const _Tp& __t) + { std::__valarray_fill(__a._M_data, __i._M_data, __n, __t); } + + // Copy a plain array __a[<__n>] into a play array __b[<>] + template + inline void + __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b) + { std::__valarray_copy(__a._M_data, __n, __b._M_data); } + + // Copy strided array __a[<__n : __s>] in plain __b[<__n>] + template + inline void + __valarray_copy(_Array<_Tp> __a, size_t __n, size_t __s, _Array<_Tp> __b) + { std::__valarray_copy(__a._M_data, __n, __s, __b._M_data); } + + // Copy a plain array __a[<__n>] into a strided array __b[<__n : __s>] + template + inline void + __valarray_copy(_Array<_Tp> __a, _Array<_Tp> __b, size_t __n, size_t __s) + { __valarray_copy(__a._M_data, __b._M_data, __n, __s); } + + // Copy strided array __src[<__n : __s1>] into another + // strided array __dst[< : __s2>]. Their sizes must match. + template + inline void + __valarray_copy(_Array<_Tp> __a, size_t __n, size_t __s1, + _Array<_Tp> __b, size_t __s2) + { std::__valarray_copy(__a._M_data, __n, __s1, __b._M_data, __s2); } + + // Copy an indexed array __a[__i[<__n>]] in plain array __b[<__n>] + template + inline void + __valarray_copy(_Array<_Tp> __a, _Array __i, + _Array<_Tp> __b, size_t __n) + { std::__valarray_copy(__a._M_data, __i._M_data, __b._M_data, __n); } + + // Copy a plain array __a[<__n>] in an indexed array __b[__i[<__n>]] + template + inline void + __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b, + _Array __i) + { std::__valarray_copy(__a._M_data, __n, __b._M_data, __i._M_data); } + + // Copy the __n first elements of an indexed array __src[<__i>] into + // another indexed array __dst[<__j>]. + template + inline void + __valarray_copy(_Array<_Tp> __src, size_t __n, _Array __i, + _Array<_Tp> __dst, _Array __j) + { + std::__valarray_copy(__src._M_data, __n, __i._M_data, + __dst._M_data, __j._M_data); + } + + template + inline + _Array<_Tp>::_Array(_Tp* const __restrict__ __p) + : _M_data (__p) {} + + template + inline + _Array<_Tp>::_Array(const valarray<_Tp>& __v) + : _M_data (__v._M_data) {} + + template + inline + _Array<_Tp>::_Array(const _Tp* __restrict__ __b, size_t __s) + : _M_data(__valarray_get_storage<_Tp>(__s)) + { std::__valarray_copy_construct(__b, __s, _M_data); } + + template + inline _Tp* + _Array<_Tp>::begin () const + { return _M_data; } + +#define _DEFINE_ARRAY_FUNCTION(_Op, _Name) \ + template \ + inline void \ + _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, const _Tp& __t) \ + { \ + for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; ++__p) \ + *__p _Op##= __t; \ + } \ + \ + template \ + inline void \ + _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b) \ + { \ + _Tp* __p = __a._M_data; \ + for (_Tp* __q = __b._M_data; __q < __b._M_data + __n; ++__p, ++__q) \ + *__p _Op##= *__q; \ + } \ + \ + template \ + void \ + _Array_augmented_##_Name(_Array<_Tp> __a, \ + const _Expr<_Dom, _Tp>& __e, size_t __n) \ + { \ + _Tp* __p(__a._M_data); \ + for (size_t __i = 0; __i < __n; ++__i, ++__p) \ + *__p _Op##= __e[__i]; \ + } \ + \ + template \ + inline void \ + _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, size_t __s, \ + _Array<_Tp> __b) \ + { \ + _Tp* __q(__b._M_data); \ + for (_Tp* __p = __a._M_data; __p < __a._M_data + __s * __n; \ + __p += __s, ++__q) \ + *__p _Op##= *__q; \ + } \ + \ + template \ + inline void \ + _Array_augmented_##_Name(_Array<_Tp> __a, _Array<_Tp> __b, \ + size_t __n, size_t __s) \ + { \ + _Tp* __q(__b._M_data); \ + for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; \ + ++__p, __q += __s) \ + *__p _Op##= *__q; \ + } \ + \ + template \ + void \ + _Array_augmented_##_Name(_Array<_Tp> __a, size_t __s, \ + const _Expr<_Dom, _Tp>& __e, size_t __n) \ + { \ + _Tp* __p(__a._M_data); \ + for (size_t __i = 0; __i < __n; ++__i, __p += __s) \ + *__p _Op##= __e[__i]; \ + } \ + \ + template \ + inline void \ + _Array_augmented_##_Name(_Array<_Tp> __a, _Array __i, \ + _Array<_Tp> __b, size_t __n) \ + { \ + _Tp* __q(__b._M_data); \ + for (size_t* __j = __i._M_data; __j < __i._M_data + __n; \ + ++__j, ++__q) \ + __a._M_data[*__j] _Op##= *__q; \ + } \ + \ + template \ + inline void \ + _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, \ + _Array<_Tp> __b, _Array __i) \ + { \ + _Tp* __p(__a._M_data); \ + for (size_t* __j = __i._M_data; __j<__i._M_data + __n; \ + ++__j, ++__p) \ + *__p _Op##= __b._M_data[*__j]; \ + } \ + \ + template \ + void \ + _Array_augmented_##_Name(_Array<_Tp> __a, _Array __i, \ + const _Expr<_Dom, _Tp>& __e, size_t __n) \ + { \ + size_t* __j(__i._M_data); \ + for (size_t __k = 0; __k<__n; ++__k, ++__j) \ + __a._M_data[*__j] _Op##= __e[__k]; \ + } \ + \ + template \ + void \ + _Array_augmented_##_Name(_Array<_Tp> __a, _Array __m, \ + _Array<_Tp> __b, size_t __n) \ + { \ + bool* __ok(__m._M_data); \ + _Tp* __p(__a._M_data); \ + for (_Tp* __q = __b._M_data; __q < __b._M_data + __n; \ + ++__q, ++__ok, ++__p) \ + { \ + while (! *__ok) \ + { \ + ++__ok; \ + ++__p; \ + } \ + *__p _Op##= *__q; \ + } \ + } \ + \ + template \ + void \ + _Array_augmented_##_Name(_Array<_Tp> __a, size_t __n, \ + _Array<_Tp> __b, _Array __m) \ + { \ + bool* __ok(__m._M_data); \ + _Tp* __q(__b._M_data); \ + for (_Tp* __p = __a._M_data; __p < __a._M_data + __n; \ + ++__p, ++__ok, ++__q) \ + { \ + while (! *__ok) \ + { \ + ++__ok; \ + ++__q; \ + } \ + *__p _Op##= *__q; \ + } \ + } \ + \ + template \ + void \ + _Array_augmented_##_Name(_Array<_Tp> __a, _Array __m, \ + const _Expr<_Dom, _Tp>& __e, size_t __n) \ + { \ + bool* __ok(__m._M_data); \ + _Tp* __p(__a._M_data); \ + for (size_t __i = 0; __i < __n; ++__i, ++__ok, ++__p) \ + { \ + while (! *__ok) \ + { \ + ++__ok; \ + ++__p; \ + } \ + *__p _Op##= __e[__i]; \ + } \ + } + + _DEFINE_ARRAY_FUNCTION(+, __plus) + _DEFINE_ARRAY_FUNCTION(-, __minus) + _DEFINE_ARRAY_FUNCTION(*, __multiplies) + _DEFINE_ARRAY_FUNCTION(/, __divides) + _DEFINE_ARRAY_FUNCTION(%, __modulus) + _DEFINE_ARRAY_FUNCTION(^, __bitwise_xor) + _DEFINE_ARRAY_FUNCTION(|, __bitwise_or) + _DEFINE_ARRAY_FUNCTION(&, __bitwise_and) + _DEFINE_ARRAY_FUNCTION(<<, __shift_left) + _DEFINE_ARRAY_FUNCTION(>>, __shift_right) + +#undef _DEFINE_ARRAY_FUNCTION + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +# include + +#endif /* _ARRAY_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/valarray_array.tcc b/resources/sources/avr-libstdcpp/include/bits/valarray_array.tcc new file mode 100644 index 000000000..f97b780bc --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/valarray_array.tcc @@ -0,0 +1,244 @@ +// The template and inlines for the -*- C++ -*- internal _Array helper class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/valarray_array.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _VALARRAY_ARRAY_TCC +#define _VALARRAY_ARRAY_TCC 1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + void + __valarray_fill(_Array<_Tp> __a, size_t __n, _Array __m, + const _Tp& __t) + { + _Tp* __p = __a._M_data; + bool* __ok (__m._M_data); + for (size_t __i=0; __i < __n; ++__i, ++__ok, ++__p) + { + while (!*__ok) + { + ++__ok; + ++__p; + } + *__p = __t; + } + } + + // Copy n elements of a into consecutive elements of b. When m is + // false, the corresponding element of a is skipped. m must contain + // at least n true elements. a must contain at least n elements and + // enough elements to match up with m through the nth true element + // of m. I.e. if n is 10, m has 15 elements with 5 false followed + // by 10 true, a must have 15 elements. + template + void + __valarray_copy(_Array<_Tp> __a, _Array __m, _Array<_Tp> __b, + size_t __n) + { + _Tp* __p (__a._M_data); + bool* __ok (__m._M_data); + for (_Tp* __q = __b._M_data; __q < __b._M_data + __n; + ++__q, ++__ok, ++__p) + { + while (! *__ok) + { + ++__ok; + ++__p; + } + *__q = *__p; + } + } + + // Copy n consecutive elements from a into elements of b. Elements + // of b are skipped if the corresponding element of m is false. m + // must contain at least n true elements. b must have at least as + // many elements as the index of the nth true element of m. I.e. if + // m has 15 elements with 5 false followed by 10 true, b must have + // at least 15 elements. + template + void + __valarray_copy(_Array<_Tp> __a, size_t __n, _Array<_Tp> __b, + _Array __m) + { + _Tp* __q (__b._M_data); + bool* __ok (__m._M_data); + for (_Tp* __p = __a._M_data; __p < __a._M_data+__n; + ++__p, ++__ok, ++__q) + { + while (! *__ok) + { + ++__ok; + ++__q; + } + *__q = *__p; + } + } + + // Copy n elements from a into elements of b. Elements of a are + // skipped if the corresponding element of m is false. Elements of + // b are skipped if the corresponding element of k is false. m and + // k must contain at least n true elements. a and b must have at + // least as many elements as the index of the nth true element of m. + template + void + __valarray_copy(_Array<_Tp> __a, _Array __m, size_t __n, + _Array<_Tp> __b, _Array __k) + { + _Tp* __p (__a._M_data); + _Tp* __q (__b._M_data); + bool* __srcok (__m._M_data); + bool* __dstok (__k._M_data); + for (size_t __i = 0; __i < __n; + ++__srcok, ++__p, ++__dstok, ++__q, ++__i) + { + while (! *__srcok) + { + ++__srcok; + ++__p; + } + while (! *__dstok) + { + ++__dstok; + ++__q; + } + *__q = *__p; + } + } + + // Copy n consecutive elements of e into consecutive elements of a. + // I.e. a[i] = e[i]. + template + void + __valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n, _Array<_Tp> __a) + { + _Tp* __p (__a._M_data); + for (size_t __i = 0; __i < __n; ++__i, ++__p) + *__p = __e[__i]; + } + + // Copy n consecutive elements of e into elements of a using stride + // s. I.e., a[0] = e[0], a[s] = e[1], a[2*s] = e[2]. + template + void + __valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n, + _Array<_Tp> __a, size_t __s) + { + _Tp* __p (__a._M_data); + for (size_t __i = 0; __i < __n; ++__i, __p += __s) + *__p = __e[__i]; + } + + // Copy n consecutive elements of e into elements of a indexed by + // contents of i. I.e., a[i[0]] = e[0]. + template + void + __valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n, + _Array<_Tp> __a, _Array __i) + { + size_t* __j (__i._M_data); + for (size_t __k = 0; __k < __n; ++__k, ++__j) + __a._M_data[*__j] = __e[__k]; + } + + // Copy n elements of e indexed by contents of f into elements of a + // indexed by contents of i. I.e., a[i[0]] = e[f[0]]. + template + void + __valarray_copy(_Array<_Tp> __e, _Array __f, + size_t __n, + _Array<_Tp> __a, _Array __i) + { + size_t* __g (__f._M_data); + size_t* __j (__i._M_data); + for (size_t __k = 0; __k < __n; ++__k, ++__j, ++__g) + __a._M_data[*__j] = __e._M_data[*__g]; + } + + // Copy n consecutive elements of e into elements of a. Elements of + // a are skipped if the corresponding element of m is false. m must + // have at least n true elements and a must have at least as many + // elements as the index of the nth true element of m. I.e. if m + // has 5 false followed by 10 true elements and n == 10, a must have + // at least 15 elements. + template + void + __valarray_copy(const _Expr<_Dom, _Tp>& __e, size_t __n, + _Array<_Tp> __a, _Array __m) + { + bool* __ok (__m._M_data); + _Tp* __p (__a._M_data); + for (size_t __i = 0; __i < __n; ++__i, ++__ok, ++__p) + { + while (! *__ok) + { + ++__ok; + ++__p; + } + *__p = __e[__i]; + } + } + + + template + void + __valarray_copy_construct(const _Expr<_Dom, _Tp>& __e, size_t __n, + _Array<_Tp> __a) + { + _Tp* __p (__a._M_data); + for (size_t __i = 0; __i < __n; ++__i, ++__p) + new (__p) _Tp(__e[__i]); + } + + + template + void + __valarray_copy_construct(_Array<_Tp> __a, _Array __m, + _Array<_Tp> __b, size_t __n) + { + _Tp* __p (__a._M_data); + bool* __ok (__m._M_data); + for (_Tp* __q = __b._M_data; __q < __b._M_data+__n; ++__q, ++__ok, ++__p) + { + while (! *__ok) + { + ++__ok; + ++__p; + } + new (__q) _Tp(*__p); + } + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _VALARRAY_ARRAY_TCC */ diff --git a/resources/sources/avr-libstdcpp/include/bits/valarray_before.h b/resources/sources/avr-libstdcpp/include/bits/valarray_before.h new file mode 100644 index 000000000..5c1c1c82a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/valarray_before.h @@ -0,0 +1,758 @@ +// The template and inlines for the -*- C++ -*- internal _Meta class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file bits/valarray_before.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{valarray} + */ + +// Written by Gabriel Dos Reis + +#ifndef _VALARRAY_BEFORE_H +#define _VALARRAY_BEFORE_H 1 + +#pragma GCC system_header + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // + // Implementing a loosened valarray return value is tricky. + // First we need to meet 26.3.1/3: we should not add more than + // two levels of template nesting. Therefore we resort to template + // template to "flatten" loosened return value types. + // At some point we use partial specialization to remove one level + // template nesting due to _Expr<> + // + + // This class is NOT defined. It doesn't need to. + template class _Constant; + + // Implementations of unary functions applied to valarray<>s. + // I use hard-coded object functions here instead of a generic + // approach like pointers to function: + // 1) correctness: some functions take references, others values. + // we can't deduce the correct type afterwards. + // 2) efficiency -- object functions can be easily inlined + // 3) be Koenig-lookup-friendly + + struct _Abs + { + template + _Tp operator()(const _Tp& __t) const + { return abs(__t); } + }; + + struct _Cos + { + template + _Tp operator()(const _Tp& __t) const + { return cos(__t); } + }; + + struct _Acos + { + template + _Tp operator()(const _Tp& __t) const + { return acos(__t); } + }; + + struct _Cosh + { + template + _Tp operator()(const _Tp& __t) const + { return cosh(__t); } + }; + + struct _Sin + { + template + _Tp operator()(const _Tp& __t) const + { return sin(__t); } + }; + + struct _Asin + { + template + _Tp operator()(const _Tp& __t) const + { return asin(__t); } + }; + + struct _Sinh + { + template + _Tp operator()(const _Tp& __t) const + { return sinh(__t); } + }; + + struct _Tan + { + template + _Tp operator()(const _Tp& __t) const + { return tan(__t); } + }; + + struct _Atan + { + template + _Tp operator()(const _Tp& __t) const + { return atan(__t); } + }; + + struct _Tanh + { + template + _Tp operator()(const _Tp& __t) const + { return tanh(__t); } + }; + + struct _Exp + { + template + _Tp operator()(const _Tp& __t) const + { return exp(__t); } + }; + + struct _Log + { + template + _Tp operator()(const _Tp& __t) const + { return log(__t); } + }; + + struct _Log10 + { + template + _Tp operator()(const _Tp& __t) const + { return log10(__t); } + }; + + struct _Sqrt + { + template + _Tp operator()(const _Tp& __t) const + { return sqrt(__t); } + }; + + // In the past, we used to tailor operator applications semantics + // to the specialization of standard function objects (i.e. plus<>, etc.) + // That is incorrect. Therefore we provide our own surrogates. + + struct __unary_plus + { + template + _Tp operator()(const _Tp& __t) const + { return +__t; } + }; + + struct __negate + { + template + _Tp operator()(const _Tp& __t) const + { return -__t; } + }; + + struct __bitwise_not + { + template + _Tp operator()(const _Tp& __t) const + { return ~__t; } + }; + + struct __plus + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x + __y; } + }; + + struct __minus + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x - __y; } + }; + + struct __multiplies + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x * __y; } + }; + + struct __divides + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x / __y; } + }; + + struct __modulus + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x % __y; } + }; + + struct __bitwise_xor + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x ^ __y; } + }; + + struct __bitwise_and + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x & __y; } + }; + + struct __bitwise_or + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x | __y; } + }; + + struct __shift_left + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x << __y; } + }; + + struct __shift_right + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return __x >> __y; } + }; + + struct __logical_and + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x && __y; } + }; + + struct __logical_or + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x || __y; } + }; + + struct __logical_not + { + template + bool operator()(const _Tp& __x) const + { return !__x; } + }; + + struct __equal_to + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x == __y; } + }; + + struct __not_equal_to + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x != __y; } + }; + + struct __less + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x < __y; } + }; + + struct __greater + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x > __y; } + }; + + struct __less_equal + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x <= __y; } + }; + + struct __greater_equal + { + template + bool operator()(const _Tp& __x, const _Tp& __y) const + { return __x >= __y; } + }; + + // The few binary functions we miss. + struct _Atan2 + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return atan2(__x, __y); } + }; + + struct _Pow + { + template + _Tp operator()(const _Tp& __x, const _Tp& __y) const + { return pow(__x, __y); } + }; + + template + struct __fun_with_valarray + { + typedef _Tp result_type; + }; + + template + struct __fun_with_valarray<_Tp, false> + { + // No result type defined for invalid value types. + }; + + // We need these bits in order to recover the return type of + // some functions/operators now that we're no longer using + // function templates. + template + struct __fun : __fun_with_valarray<_Tp> + { + }; + + // several specializations for relational operators. + template + struct __fun<__logical_not, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__logical_and, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__logical_or, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__less, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__greater, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__less_equal, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__greater_equal, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__equal_to, _Tp> + { + typedef bool result_type; + }; + + template + struct __fun<__not_equal_to, _Tp> + { + typedef bool result_type; + }; + +namespace __detail +{ + // Closure types already have reference semantics and are often short-lived, + // so store them by value to avoid (some cases of) dangling references to + // out-of-scope temporaries. + template + struct _ValArrayRef + { typedef const _Tp __type; }; + + // Use real references for std::valarray objects. + template + struct _ValArrayRef< valarray<_Tp> > + { typedef const valarray<_Tp>& __type; }; + + // + // Apply function taking a value/const reference closure + // + + template + class _FunBase + { + public: + typedef typename _Dom::value_type value_type; + + _FunBase(const _Dom& __e, value_type __f(_Arg)) + : _M_expr(__e), _M_func(__f) {} + + value_type operator[](size_t __i) const + { return _M_func (_M_expr[__i]); } + + size_t size() const { return _M_expr.size ();} + + private: + typename _ValArrayRef<_Dom>::__type _M_expr; + value_type (*_M_func)(_Arg); + }; + + template + struct _ValFunClos<_Expr,_Dom> : _FunBase<_Dom, typename _Dom::value_type> + { + typedef _FunBase<_Dom, typename _Dom::value_type> _Base; + typedef typename _Base::value_type value_type; + typedef value_type _Tp; + + _ValFunClos(const _Dom& __e, _Tp __f(_Tp)) : _Base(__e, __f) {} + }; + + template + struct _ValFunClos<_ValArray,_Tp> : _FunBase, _Tp> + { + typedef _FunBase, _Tp> _Base; + typedef _Tp value_type; + + _ValFunClos(const valarray<_Tp>& __v, _Tp __f(_Tp)) : _Base(__v, __f) {} + }; + + template + struct _RefFunClos<_Expr, _Dom> + : _FunBase<_Dom, const typename _Dom::value_type&> + { + typedef _FunBase<_Dom, const typename _Dom::value_type&> _Base; + typedef typename _Base::value_type value_type; + typedef value_type _Tp; + + _RefFunClos(const _Dom& __e, _Tp __f(const _Tp&)) + : _Base(__e, __f) {} + }; + + template + struct _RefFunClos<_ValArray, _Tp> + : _FunBase, const _Tp&> + { + typedef _FunBase, const _Tp&> _Base; + typedef _Tp value_type; + + _RefFunClos(const valarray<_Tp>& __v, _Tp __f(const _Tp&)) + : _Base(__v, __f) {} + }; + + // + // Unary expression closure. + // + + template + class _UnBase + { + public: + typedef typename _Arg::value_type _Vt; + typedef typename __fun<_Oper, _Vt>::result_type value_type; + + _UnBase(const _Arg& __e) : _M_expr(__e) {} + + value_type operator[](size_t __i) const + { return _Oper()(_M_expr[__i]); } + + size_t size() const { return _M_expr.size(); } + + private: + typename _ValArrayRef<_Arg>::__type _M_expr; + }; + + template + struct _UnClos<_Oper, _Expr, _Dom> + : _UnBase<_Oper, _Dom> + { + typedef _Dom _Arg; + typedef _UnBase<_Oper, _Dom> _Base; + typedef typename _Base::value_type value_type; + + _UnClos(const _Arg& __e) : _Base(__e) {} + }; + + template + struct _UnClos<_Oper, _ValArray, _Tp> + : _UnBase<_Oper, valarray<_Tp> > + { + typedef valarray<_Tp> _Arg; + typedef _UnBase<_Oper, valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _UnClos(const _Arg& __e) : _Base(__e) {} + }; + + + // + // Binary expression closure. + // + + template + class _BinBase + { + public: + typedef typename _FirstArg::value_type _Vt; + typedef typename __fun<_Oper, _Vt>::result_type value_type; + + _BinBase(const _FirstArg& __e1, const _SecondArg& __e2) + : _M_expr1(__e1), _M_expr2(__e2) {} + + value_type operator[](size_t __i) const + { return _Oper()(_M_expr1[__i], _M_expr2[__i]); } + + size_t size() const { return _M_expr1.size(); } + + private: + typename _ValArrayRef<_FirstArg>::__type _M_expr1; + typename _ValArrayRef<_SecondArg>::__type _M_expr2; + }; + + + template + class _BinBase2 + { + public: + typedef typename _Clos::value_type _Vt; + typedef typename __fun<_Oper, _Vt>::result_type value_type; + + _BinBase2(const _Clos& __e, const _Vt& __t) + : _M_expr1(__e), _M_expr2(__t) {} + + value_type operator[](size_t __i) const + { return _Oper()(_M_expr1[__i], _M_expr2); } + + size_t size() const { return _M_expr1.size(); } + + private: + typename _ValArrayRef<_Clos>::__type _M_expr1; + _Vt _M_expr2; + }; + + template + class _BinBase1 + { + public: + typedef typename _Clos::value_type _Vt; + typedef typename __fun<_Oper, _Vt>::result_type value_type; + + _BinBase1(const _Vt& __t, const _Clos& __e) + : _M_expr1(__t), _M_expr2(__e) {} + + value_type operator[](size_t __i) const + { return _Oper()(_M_expr1, _M_expr2[__i]); } + + size_t size() const { return _M_expr2.size(); } + + private: + _Vt _M_expr1; + typename _ValArrayRef<_Clos>::__type _M_expr2; + }; + + template + struct _BinClos<_Oper, _Expr, _Expr, _Dom1, _Dom2> + : _BinBase<_Oper, _Dom1, _Dom2> + { + typedef _BinBase<_Oper, _Dom1, _Dom2> _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Dom1& __e1, const _Dom2& __e2) : _Base(__e1, __e2) {} + }; + + template + struct _BinClos<_Oper, _ValArray, _ValArray, _Tp, _Tp> + : _BinBase<_Oper, valarray<_Tp>, valarray<_Tp> > + { + typedef _BinBase<_Oper, valarray<_Tp>, valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const valarray<_Tp>& __v, const valarray<_Tp>& __w) + : _Base(__v, __w) {} + }; + + template + struct _BinClos<_Oper, _Expr, _ValArray, _Dom, typename _Dom::value_type> + : _BinBase<_Oper, _Dom, valarray > + { + typedef typename _Dom::value_type _Tp; + typedef _BinBase<_Oper,_Dom,valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Dom& __e1, const valarray<_Tp>& __e2) + : _Base(__e1, __e2) {} + }; + + template + struct _BinClos<_Oper, _ValArray, _Expr, typename _Dom::value_type, _Dom> + : _BinBase<_Oper, valarray,_Dom> + { + typedef typename _Dom::value_type _Tp; + typedef _BinBase<_Oper, valarray<_Tp>, _Dom> _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const valarray<_Tp>& __e1, const _Dom& __e2) + : _Base(__e1, __e2) {} + }; + + template + struct _BinClos<_Oper, _Expr, _Constant, _Dom, typename _Dom::value_type> + : _BinBase2<_Oper, _Dom> + { + typedef typename _Dom::value_type _Tp; + typedef _BinBase2<_Oper,_Dom> _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Dom& __e1, const _Tp& __e2) : _Base(__e1, __e2) {} + }; + + template + struct _BinClos<_Oper, _Constant, _Expr, typename _Dom::value_type, _Dom> + : _BinBase1<_Oper, _Dom> + { + typedef typename _Dom::value_type _Tp; + typedef _BinBase1<_Oper, _Dom> _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Tp& __e1, const _Dom& __e2) : _Base(__e1, __e2) {} + }; + + template + struct _BinClos<_Oper, _ValArray, _Constant, _Tp, _Tp> + : _BinBase2<_Oper, valarray<_Tp> > + { + typedef _BinBase2<_Oper,valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const valarray<_Tp>& __v, const _Tp& __t) : _Base(__v, __t) {} + }; + + template + struct _BinClos<_Oper, _Constant, _ValArray, _Tp, _Tp> + : _BinBase1<_Oper, valarray<_Tp> > + { + typedef _BinBase1<_Oper, valarray<_Tp> > _Base; + typedef typename _Base::value_type value_type; + + _BinClos(const _Tp& __t, const valarray<_Tp>& __v) : _Base(__t, __v) {} + }; + + // + // slice_array closure. + // + template + class _SBase + { + public: + typedef typename _Dom::value_type value_type; + + _SBase (const _Dom& __e, const slice& __s) + : _M_expr (__e), _M_slice (__s) {} + + value_type + operator[] (size_t __i) const + { return _M_expr[_M_slice.start () + __i * _M_slice.stride ()]; } + + size_t + size() const + { return _M_slice.size (); } + + private: + typename _ValArrayRef<_Dom>::__type _M_expr; + const slice& _M_slice; + }; + + template + class _SBase<_Array<_Tp> > + { + public: + typedef _Tp value_type; + + _SBase (_Array<_Tp> __a, const slice& __s) + : _M_array (__a._M_data+__s.start()), _M_size (__s.size()), + _M_stride (__s.stride()) {} + + value_type + operator[] (size_t __i) const + { return _M_array._M_data[__i * _M_stride]; } + + size_t + size() const + { return _M_size; } + + private: + const _Array<_Tp> _M_array; + const size_t _M_size; + const size_t _M_stride; + }; + + template + struct _SClos<_Expr, _Dom> + : _SBase<_Dom> + { + typedef _SBase<_Dom> _Base; + typedef typename _Base::value_type value_type; + + _SClos (const _Dom& __e, const slice& __s) : _Base (__e, __s) {} + }; + + template + struct _SClos<_ValArray, _Tp> + : _SBase<_Array<_Tp> > + { + typedef _SBase<_Array<_Tp> > _Base; + typedef _Tp value_type; + + _SClos (_Array<_Tp> __a, const slice& __s) : _Base (__a, __s) {} + }; +} // namespace __detail + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _CPP_VALARRAY_BEFORE_H */ diff --git a/resources/sources/avr-libstdcpp/include/bits/vector.tcc b/resources/sources/avr-libstdcpp/include/bits/vector.tcc new file mode 100644 index 000000000..27e63388f --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bits/vector.tcc @@ -0,0 +1,1008 @@ +// Vector implementation (out of line) -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/vector.tcc + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{vector} + */ + +#ifndef _VECTOR_TCC +#define _VECTOR_TCC 1 + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + template + void + vector<_Tp, _Alloc>:: + reserve(size_type __n) + { + if (__n > this->max_size()) + __throw_length_error(__N("vector::reserve")); + if (this->capacity() < __n) + { + const size_type __old_size = size(); + pointer __tmp; +#if __cplusplus >= 201103L + if _GLIBCXX17_CONSTEXPR (_S_use_relocate()) + { + __tmp = this->_M_allocate(__n); + _S_relocate(this->_M_impl._M_start, this->_M_impl._M_finish, + __tmp, _M_get_Tp_allocator()); + } + else +#endif + { + __tmp = _M_allocate_and_copy(__n, + _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(this->_M_impl._M_start), + _GLIBCXX_MAKE_MOVE_IF_NOEXCEPT_ITERATOR(this->_M_impl._M_finish)); + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + } + _GLIBCXX_ASAN_ANNOTATE_REINIT; + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = __tmp; + this->_M_impl._M_finish = __tmp + __old_size; + this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n; + } + } + +#if __cplusplus >= 201103L + template + template +#if __cplusplus > 201402L + typename vector<_Tp, _Alloc>::reference +#else + void +#endif + vector<_Tp, _Alloc>:: + emplace_back(_Args&&... __args) + { + if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(1); + _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish, + std::forward<_Args>(__args)...); + ++this->_M_impl._M_finish; + _GLIBCXX_ASAN_ANNOTATE_GREW(1); + } + else + _M_realloc_insert(end(), std::forward<_Args>(__args)...); +#if __cplusplus > 201402L + return back(); +#endif + } +#endif + + template + typename vector<_Tp, _Alloc>::iterator + vector<_Tp, _Alloc>:: +#if __cplusplus >= 201103L + insert(const_iterator __position, const value_type& __x) +#else + insert(iterator __position, const value_type& __x) +#endif + { + const size_type __n = __position - begin(); + if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage) + if (__position == end()) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(1); + _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish, + __x); + ++this->_M_impl._M_finish; + _GLIBCXX_ASAN_ANNOTATE_GREW(1); + } + else + { +#if __cplusplus >= 201103L + const auto __pos = begin() + (__position - cbegin()); + // __x could be an existing element of this vector, so make a + // copy of it before _M_insert_aux moves elements around. + _Temporary_value __x_copy(this, __x); + _M_insert_aux(__pos, std::move(__x_copy._M_val())); +#else + _M_insert_aux(__position, __x); +#endif + } + else +#if __cplusplus >= 201103L + _M_realloc_insert(begin() + (__position - cbegin()), __x); +#else + _M_realloc_insert(__position, __x); +#endif + + return iterator(this->_M_impl._M_start + __n); + } + + template + typename vector<_Tp, _Alloc>::iterator + vector<_Tp, _Alloc>:: + _M_erase(iterator __position) + { + if (__position + 1 != end()) + _GLIBCXX_MOVE3(__position + 1, end(), __position); + --this->_M_impl._M_finish; + _Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish); + _GLIBCXX_ASAN_ANNOTATE_SHRINK(1); + return __position; + } + + template + typename vector<_Tp, _Alloc>::iterator + vector<_Tp, _Alloc>:: + _M_erase(iterator __first, iterator __last) + { + if (__first != __last) + { + if (__last != end()) + _GLIBCXX_MOVE3(__last, end(), __first); + _M_erase_at_end(__first.base() + (end() - __last)); + } + return __first; + } + + template + vector<_Tp, _Alloc>& + vector<_Tp, _Alloc>:: + operator=(const vector<_Tp, _Alloc>& __x) + { + if (&__x != this) + { + _GLIBCXX_ASAN_ANNOTATE_REINIT; +#if __cplusplus >= 201103L + if (_Alloc_traits::_S_propagate_on_copy_assign()) + { + if (!_Alloc_traits::_S_always_equal() + && _M_get_Tp_allocator() != __x._M_get_Tp_allocator()) + { + // replacement allocator cannot free existing storage + this->clear(); + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = nullptr; + this->_M_impl._M_finish = nullptr; + this->_M_impl._M_end_of_storage = nullptr; + } + std::__alloc_on_copy(_M_get_Tp_allocator(), + __x._M_get_Tp_allocator()); + } +#endif + const size_type __xlen = __x.size(); + if (__xlen > capacity()) + { + pointer __tmp = _M_allocate_and_copy(__xlen, __x.begin(), + __x.end()); + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = __tmp; + this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __xlen; + } + else if (size() >= __xlen) + { + std::_Destroy(std::copy(__x.begin(), __x.end(), begin()), + end(), _M_get_Tp_allocator()); + } + else + { + std::copy(__x._M_impl._M_start, __x._M_impl._M_start + size(), + this->_M_impl._M_start); + std::__uninitialized_copy_a(__x._M_impl._M_start + size(), + __x._M_impl._M_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + } + this->_M_impl._M_finish = this->_M_impl._M_start + __xlen; + } + return *this; + } + + template + void + vector<_Tp, _Alloc>:: + _M_fill_assign(size_t __n, const value_type& __val) + { + if (__n > capacity()) + { + vector __tmp(__n, __val, _M_get_Tp_allocator()); + __tmp._M_impl._M_swap_data(this->_M_impl); + } + else if (__n > size()) + { + std::fill(begin(), end(), __val); + const size_type __add = __n - size(); + _GLIBCXX_ASAN_ANNOTATE_GROW(__add); + this->_M_impl._M_finish = + std::__uninitialized_fill_n_a(this->_M_impl._M_finish, + __add, __val, _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_GREW(__add); + } + else + _M_erase_at_end(std::fill_n(this->_M_impl._M_start, __n, __val)); + } + + template + template + void + vector<_Tp, _Alloc>:: + _M_assign_aux(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + pointer __cur(this->_M_impl._M_start); + for (; __first != __last && __cur != this->_M_impl._M_finish; + ++__cur, (void)++__first) + *__cur = *__first; + if (__first == __last) + _M_erase_at_end(__cur); + else + _M_range_insert(end(), __first, __last, + std::__iterator_category(__first)); + } + + template + template + void + vector<_Tp, _Alloc>:: + _M_assign_aux(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + const size_type __len = std::distance(__first, __last); + + if (__len > capacity()) + { + _S_check_init_len(__len, _M_get_Tp_allocator()); + pointer __tmp(_M_allocate_and_copy(__len, __first, __last)); + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_REINIT; + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = __tmp; + this->_M_impl._M_finish = this->_M_impl._M_start + __len; + this->_M_impl._M_end_of_storage = this->_M_impl._M_finish; + } + else if (size() >= __len) + _M_erase_at_end(std::copy(__first, __last, this->_M_impl._M_start)); + else + { + _ForwardIterator __mid = __first; + std::advance(__mid, size()); + std::copy(__first, __mid, this->_M_impl._M_start); + const size_type __attribute__((__unused__)) __n = __len - size(); + _GLIBCXX_ASAN_ANNOTATE_GROW(__n); + this->_M_impl._M_finish = + std::__uninitialized_copy_a(__mid, __last, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_GREW(__n); + } + } + +#if __cplusplus >= 201103L + template + auto + vector<_Tp, _Alloc>:: + _M_insert_rval(const_iterator __position, value_type&& __v) -> iterator + { + const auto __n = __position - cbegin(); + if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage) + if (__position == cend()) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(1); + _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish, + std::move(__v)); + ++this->_M_impl._M_finish; + _GLIBCXX_ASAN_ANNOTATE_GREW(1); + } + else + _M_insert_aux(begin() + __n, std::move(__v)); + else + _M_realloc_insert(begin() + __n, std::move(__v)); + + return iterator(this->_M_impl._M_start + __n); + } + + template + template + auto + vector<_Tp, _Alloc>:: + _M_emplace_aux(const_iterator __position, _Args&&... __args) + -> iterator + { + const auto __n = __position - cbegin(); + if (this->_M_impl._M_finish != this->_M_impl._M_end_of_storage) + if (__position == cend()) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(1); + _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish, + std::forward<_Args>(__args)...); + ++this->_M_impl._M_finish; + _GLIBCXX_ASAN_ANNOTATE_GREW(1); + } + else + { + // We need to construct a temporary because something in __args... + // could alias one of the elements of the container and so we + // need to use it before _M_insert_aux moves elements around. + _Temporary_value __tmp(this, std::forward<_Args>(__args)...); + _M_insert_aux(begin() + __n, std::move(__tmp._M_val())); + } + else + _M_realloc_insert(begin() + __n, std::forward<_Args>(__args)...); + + return iterator(this->_M_impl._M_start + __n); + } + + template + template + void + vector<_Tp, _Alloc>:: + _M_insert_aux(iterator __position, _Arg&& __arg) +#else + template + void + vector<_Tp, _Alloc>:: + _M_insert_aux(iterator __position, const _Tp& __x) +#endif + { + _GLIBCXX_ASAN_ANNOTATE_GROW(1); + _Alloc_traits::construct(this->_M_impl, this->_M_impl._M_finish, + _GLIBCXX_MOVE(*(this->_M_impl._M_finish - 1))); + ++this->_M_impl._M_finish; + _GLIBCXX_ASAN_ANNOTATE_GREW(1); +#if __cplusplus < 201103L + _Tp __x_copy = __x; +#endif + _GLIBCXX_MOVE_BACKWARD3(__position.base(), + this->_M_impl._M_finish - 2, + this->_M_impl._M_finish - 1); +#if __cplusplus < 201103L + *__position = __x_copy; +#else + *__position = std::forward<_Arg>(__arg); +#endif + } + +#if __cplusplus >= 201103L + template + template + void + vector<_Tp, _Alloc>:: + _M_realloc_insert(iterator __position, _Args&&... __args) +#else + template + void + vector<_Tp, _Alloc>:: + _M_realloc_insert(iterator __position, const _Tp& __x) +#endif + { + const size_type __len = + _M_check_len(size_type(1), "vector::_M_realloc_insert"); + pointer __old_start = this->_M_impl._M_start; + pointer __old_finish = this->_M_impl._M_finish; + const size_type __elems_before = __position - begin(); + pointer __new_start(this->_M_allocate(__len)); + pointer __new_finish(__new_start); + __try + { + // The order of the three operations is dictated by the C++11 + // case, where the moves could alter a new element belonging + // to the existing vector. This is an issue only for callers + // taking the element by lvalue ref (see last bullet of C++11 + // [res.on.arguments]). + _Alloc_traits::construct(this->_M_impl, + __new_start + __elems_before, +#if __cplusplus >= 201103L + std::forward<_Args>(__args)...); +#else + __x); +#endif + __new_finish = pointer(); + +#if __cplusplus >= 201103L + if _GLIBCXX17_CONSTEXPR (_S_use_relocate()) + { + __new_finish = _S_relocate(__old_start, __position.base(), + __new_start, _M_get_Tp_allocator()); + + ++__new_finish; + + __new_finish = _S_relocate(__position.base(), __old_finish, + __new_finish, _M_get_Tp_allocator()); + } + else +#endif + { + __new_finish + = std::__uninitialized_move_if_noexcept_a + (__old_start, __position.base(), + __new_start, _M_get_Tp_allocator()); + + ++__new_finish; + + __new_finish + = std::__uninitialized_move_if_noexcept_a + (__position.base(), __old_finish, + __new_finish, _M_get_Tp_allocator()); + } + } + __catch(...) + { + if (!__new_finish) + _Alloc_traits::destroy(this->_M_impl, + __new_start + __elems_before); + else + std::_Destroy(__new_start, __new_finish, _M_get_Tp_allocator()); + _M_deallocate(__new_start, __len); + __throw_exception_again; + } +#if __cplusplus >= 201103L + if _GLIBCXX17_CONSTEXPR (!_S_use_relocate()) +#endif + std::_Destroy(__old_start, __old_finish, _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_REINIT; + _M_deallocate(__old_start, + this->_M_impl._M_end_of_storage - __old_start); + this->_M_impl._M_start = __new_start; + this->_M_impl._M_finish = __new_finish; + this->_M_impl._M_end_of_storage = __new_start + __len; + } + + template + void + vector<_Tp, _Alloc>:: + _M_fill_insert(iterator __position, size_type __n, const value_type& __x) + { + if (__n != 0) + { + if (size_type(this->_M_impl._M_end_of_storage + - this->_M_impl._M_finish) >= __n) + { +#if __cplusplus < 201103L + value_type __x_copy = __x; +#else + _Temporary_value __tmp(this, __x); + value_type& __x_copy = __tmp._M_val(); +#endif + const size_type __elems_after = end() - __position; + pointer __old_finish(this->_M_impl._M_finish); + if (__elems_after > __n) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(__n); + std::__uninitialized_move_a(this->_M_impl._M_finish - __n, + this->_M_impl._M_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish += __n; + _GLIBCXX_ASAN_ANNOTATE_GREW(__n); + _GLIBCXX_MOVE_BACKWARD3(__position.base(), + __old_finish - __n, __old_finish); + std::fill(__position.base(), __position.base() + __n, + __x_copy); + } + else + { + _GLIBCXX_ASAN_ANNOTATE_GROW(__n); + this->_M_impl._M_finish = + std::__uninitialized_fill_n_a(this->_M_impl._M_finish, + __n - __elems_after, + __x_copy, + _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_GREW(__n - __elems_after); + std::__uninitialized_move_a(__position.base(), __old_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish += __elems_after; + _GLIBCXX_ASAN_ANNOTATE_GREW(__elems_after); + std::fill(__position.base(), __old_finish, __x_copy); + } + } + else + { + const size_type __len = + _M_check_len(__n, "vector::_M_fill_insert"); + const size_type __elems_before = __position - begin(); + pointer __new_start(this->_M_allocate(__len)); + pointer __new_finish(__new_start); + __try + { + // See _M_realloc_insert above. + std::__uninitialized_fill_n_a(__new_start + __elems_before, + __n, __x, + _M_get_Tp_allocator()); + __new_finish = pointer(); + + __new_finish + = std::__uninitialized_move_if_noexcept_a + (this->_M_impl._M_start, __position.base(), + __new_start, _M_get_Tp_allocator()); + + __new_finish += __n; + + __new_finish + = std::__uninitialized_move_if_noexcept_a + (__position.base(), this->_M_impl._M_finish, + __new_finish, _M_get_Tp_allocator()); + } + __catch(...) + { + if (!__new_finish) + std::_Destroy(__new_start + __elems_before, + __new_start + __elems_before + __n, + _M_get_Tp_allocator()); + else + std::_Destroy(__new_start, __new_finish, + _M_get_Tp_allocator()); + _M_deallocate(__new_start, __len); + __throw_exception_again; + } + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_REINIT; + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = __new_start; + this->_M_impl._M_finish = __new_finish; + this->_M_impl._M_end_of_storage = __new_start + __len; + } + } + } + +#if __cplusplus >= 201103L + template + void + vector<_Tp, _Alloc>:: + _M_default_append(size_type __n) + { + if (__n != 0) + { + const size_type __size = size(); + size_type __navail = size_type(this->_M_impl._M_end_of_storage + - this->_M_impl._M_finish); + + if (__size > max_size() || __navail > max_size() - __size) + __builtin_unreachable(); + + if (__navail >= __n) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(__n); + this->_M_impl._M_finish = + std::__uninitialized_default_n_a(this->_M_impl._M_finish, + __n, _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_GREW(__n); + } + else + { + const size_type __len = + _M_check_len(__n, "vector::_M_default_append"); + pointer __new_start(this->_M_allocate(__len)); + if _GLIBCXX17_CONSTEXPR (_S_use_relocate()) + { + __try + { + std::__uninitialized_default_n_a(__new_start + __size, + __n, _M_get_Tp_allocator()); + } + __catch(...) + { + _M_deallocate(__new_start, __len); + __throw_exception_again; + } + _S_relocate(this->_M_impl._M_start, this->_M_impl._M_finish, + __new_start, _M_get_Tp_allocator()); + } + else + { + pointer __destroy_from = pointer(); + __try + { + std::__uninitialized_default_n_a(__new_start + __size, + __n, _M_get_Tp_allocator()); + __destroy_from = __new_start + __size; + std::__uninitialized_move_if_noexcept_a( + this->_M_impl._M_start, this->_M_impl._M_finish, + __new_start, _M_get_Tp_allocator()); + } + __catch(...) + { + if (__destroy_from) + std::_Destroy(__destroy_from, __destroy_from + __n, + _M_get_Tp_allocator()); + _M_deallocate(__new_start, __len); + __throw_exception_again; + } + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + } + _GLIBCXX_ASAN_ANNOTATE_REINIT; + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = __new_start; + this->_M_impl._M_finish = __new_start + __size + __n; + this->_M_impl._M_end_of_storage = __new_start + __len; + } + } + } + + template + bool + vector<_Tp, _Alloc>:: + _M_shrink_to_fit() + { + if (capacity() == size()) + return false; + _GLIBCXX_ASAN_ANNOTATE_REINIT; + return std::__shrink_to_fit_aux::_S_do_it(*this); + } +#endif + + template + template + void + vector<_Tp, _Alloc>:: + _M_range_insert(iterator __pos, _InputIterator __first, + _InputIterator __last, std::input_iterator_tag) + { + if (__pos == end()) + { + for (; __first != __last; ++__first) + insert(end(), *__first); + } + else if (__first != __last) + { + vector __tmp(__first, __last, _M_get_Tp_allocator()); + insert(__pos, + _GLIBCXX_MAKE_MOVE_ITERATOR(__tmp.begin()), + _GLIBCXX_MAKE_MOVE_ITERATOR(__tmp.end())); + } + } + + template + template + void + vector<_Tp, _Alloc>:: + _M_range_insert(iterator __position, _ForwardIterator __first, + _ForwardIterator __last, std::forward_iterator_tag) + { + if (__first != __last) + { + const size_type __n = std::distance(__first, __last); + if (size_type(this->_M_impl._M_end_of_storage + - this->_M_impl._M_finish) >= __n) + { + const size_type __elems_after = end() - __position; + pointer __old_finish(this->_M_impl._M_finish); + if (__elems_after > __n) + { + _GLIBCXX_ASAN_ANNOTATE_GROW(__n); + std::__uninitialized_move_a(this->_M_impl._M_finish - __n, + this->_M_impl._M_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish += __n; + _GLIBCXX_ASAN_ANNOTATE_GREW(__n); + _GLIBCXX_MOVE_BACKWARD3(__position.base(), + __old_finish - __n, __old_finish); + std::copy(__first, __last, __position); + } + else + { + _ForwardIterator __mid = __first; + std::advance(__mid, __elems_after); + _GLIBCXX_ASAN_ANNOTATE_GROW(__n); + std::__uninitialized_copy_a(__mid, __last, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish += __n - __elems_after; + _GLIBCXX_ASAN_ANNOTATE_GREW(__n - __elems_after); + std::__uninitialized_move_a(__position.base(), + __old_finish, + this->_M_impl._M_finish, + _M_get_Tp_allocator()); + this->_M_impl._M_finish += __elems_after; + _GLIBCXX_ASAN_ANNOTATE_GREW(__elems_after); + std::copy(__first, __mid, __position); + } + } + else + { + const size_type __len = + _M_check_len(__n, "vector::_M_range_insert"); + pointer __new_start(this->_M_allocate(__len)); + pointer __new_finish(__new_start); + __try + { + __new_finish + = std::__uninitialized_move_if_noexcept_a + (this->_M_impl._M_start, __position.base(), + __new_start, _M_get_Tp_allocator()); + __new_finish + = std::__uninitialized_copy_a(__first, __last, + __new_finish, + _M_get_Tp_allocator()); + __new_finish + = std::__uninitialized_move_if_noexcept_a + (__position.base(), this->_M_impl._M_finish, + __new_finish, _M_get_Tp_allocator()); + } + __catch(...) + { + std::_Destroy(__new_start, __new_finish, + _M_get_Tp_allocator()); + _M_deallocate(__new_start, __len); + __throw_exception_again; + } + std::_Destroy(this->_M_impl._M_start, this->_M_impl._M_finish, + _M_get_Tp_allocator()); + _GLIBCXX_ASAN_ANNOTATE_REINIT; + _M_deallocate(this->_M_impl._M_start, + this->_M_impl._M_end_of_storage + - this->_M_impl._M_start); + this->_M_impl._M_start = __new_start; + this->_M_impl._M_finish = __new_finish; + this->_M_impl._M_end_of_storage = __new_start + __len; + } + } + } + + + // vector + template + void + vector:: + _M_reallocate(size_type __n) + { + _Bit_pointer __q = this->_M_allocate(__n); + iterator __start(std::__addressof(*__q), 0); + iterator __finish(_M_copy_aligned(begin(), end(), __start)); + this->_M_deallocate(); + this->_M_impl._M_start = __start; + this->_M_impl._M_finish = __finish; + this->_M_impl._M_end_of_storage = __q + _S_nword(__n); + } + + template + void + vector:: + _M_fill_insert(iterator __position, size_type __n, bool __x) + { + if (__n == 0) + return; + if (capacity() - size() >= __n) + { + std::copy_backward(__position, end(), + this->_M_impl._M_finish + difference_type(__n)); + std::fill(__position, __position + difference_type(__n), __x); + this->_M_impl._M_finish += difference_type(__n); + } + else + { + const size_type __len = + _M_check_len(__n, "vector::_M_fill_insert"); + _Bit_pointer __q = this->_M_allocate(__len); + iterator __start(std::__addressof(*__q), 0); + iterator __i = _M_copy_aligned(begin(), __position, __start); + std::fill(__i, __i + difference_type(__n), __x); + iterator __finish = std::copy(__position, end(), + __i + difference_type(__n)); + this->_M_deallocate(); + this->_M_impl._M_end_of_storage = __q + _S_nword(__len); + this->_M_impl._M_start = __start; + this->_M_impl._M_finish = __finish; + } + } + + template + template + void + vector:: + _M_insert_range(iterator __position, _ForwardIterator __first, + _ForwardIterator __last, std::forward_iterator_tag) + { + if (__first != __last) + { + size_type __n = std::distance(__first, __last); + if (capacity() - size() >= __n) + { + std::copy_backward(__position, end(), + this->_M_impl._M_finish + + difference_type(__n)); + std::copy(__first, __last, __position); + this->_M_impl._M_finish += difference_type(__n); + } + else + { + const size_type __len = + _M_check_len(__n, "vector::_M_insert_range"); + _Bit_pointer __q = this->_M_allocate(__len); + iterator __start(std::__addressof(*__q), 0); + iterator __i = _M_copy_aligned(begin(), __position, __start); + __i = std::copy(__first, __last, __i); + iterator __finish = std::copy(__position, end(), __i); + this->_M_deallocate(); + this->_M_impl._M_end_of_storage = __q + _S_nword(__len); + this->_M_impl._M_start = __start; + this->_M_impl._M_finish = __finish; + } + } + } + + template + void + vector:: + _M_insert_aux(iterator __position, bool __x) + { + if (this->_M_impl._M_finish._M_p != this->_M_impl._M_end_addr()) + { + std::copy_backward(__position, this->_M_impl._M_finish, + this->_M_impl._M_finish + 1); + *__position = __x; + ++this->_M_impl._M_finish; + } + else + { + const size_type __len = + _M_check_len(size_type(1), "vector::_M_insert_aux"); + _Bit_pointer __q = this->_M_allocate(__len); + iterator __start(std::__addressof(*__q), 0); + iterator __i = _M_copy_aligned(begin(), __position, __start); + *__i++ = __x; + iterator __finish = std::copy(__position, end(), __i); + this->_M_deallocate(); + this->_M_impl._M_end_of_storage = __q + _S_nword(__len); + this->_M_impl._M_start = __start; + this->_M_impl._M_finish = __finish; + } + } + + template + typename vector::iterator + vector:: + _M_erase(iterator __position) + { + if (__position + 1 != end()) + std::copy(__position + 1, end(), __position); + --this->_M_impl._M_finish; + return __position; + } + + template + typename vector::iterator + vector:: + _M_erase(iterator __first, iterator __last) + { + if (__first != __last) + _M_erase_at_end(std::copy(__last, end(), __first)); + return __first; + } + +#if __cplusplus >= 201103L + template + bool + vector:: + _M_shrink_to_fit() + { + if (capacity() - size() < int(_S_word_bit)) + return false; + __try + { + _M_reallocate(size()); + return true; + } + __catch(...) + { return false; } + } +#endif + +_GLIBCXX_END_NAMESPACE_CONTAINER +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#if __cplusplus >= 201103L + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + size_t + hash<_GLIBCXX_STD_C::vector>:: + operator()(const _GLIBCXX_STD_C::vector& __b) const noexcept + { + size_t __hash = 0; + using _GLIBCXX_STD_C::_S_word_bit; + using _GLIBCXX_STD_C::_Bit_type; + + const size_t __words = __b.size() / _S_word_bit; + if (__words) + { + const size_t __clength = __words * sizeof(_Bit_type); + __hash = std::_Hash_impl::hash(__b._M_impl._M_start._M_p, __clength); + } + + const size_t __extrabits = __b.size() % _S_word_bit; + if (__extrabits) + { + _Bit_type __hiword = *__b._M_impl._M_finish._M_p; + __hiword &= ~((~static_cast<_Bit_type>(0)) << __extrabits); + + const size_t __clength + = (__extrabits + __CHAR_BIT__ - 1) / __CHAR_BIT__; + if (__words) + __hash = std::_Hash_impl::hash(&__hiword, __clength, __hash); + else + __hash = std::_Hash_impl::hash(&__hiword, __clength); + } + + return __hash; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#undef _GLIBCXX_ASAN_ANNOTATE_REINIT +#undef _GLIBCXX_ASAN_ANNOTATE_GROW +#undef _GLIBCXX_ASAN_ANNOTATE_GREW +#undef _GLIBCXX_ASAN_ANNOTATE_SHRINK + +#endif /* _VECTOR_TCC */ diff --git a/resources/sources/avr-libstdcpp/include/bitset b/resources/sources/avr-libstdcpp/include/bitset new file mode 100644 index 000000000..dc3910ac6 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/bitset @@ -0,0 +1,1245 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/bitset + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_BITSET +#define _GLIBCXX_BITSET 1 + +#pragma GCC system_header + +#include // For invalid_argument, out_of_range, + // overflow_error +#include + +#if __cplusplus >= 201103L +# include +#endif + +#define _GLIBCXX_BITSET_BITS_PER_WORD (__CHAR_BIT__ * __SIZEOF_LONG__) +#define _GLIBCXX_BITSET_WORDS(__n) \ + ((__n) / _GLIBCXX_BITSET_BITS_PER_WORD + \ + ((__n) % _GLIBCXX_BITSET_BITS_PER_WORD == 0 ? 0 : 1)) + +#define _GLIBCXX_BITSET_BITS_PER_ULL (__CHAR_BIT__ * __SIZEOF_LONG_LONG__) + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_CONTAINER + + /** + * Base class, general case. It is a class invariant that _Nw will be + * nonnegative. + * + * See documentation for bitset. + */ + template + struct _Base_bitset + { + typedef unsigned long _WordT; + + /// 0 is the least significant word. + _WordT _M_w[_Nw]; + + _GLIBCXX_CONSTEXPR _Base_bitset() _GLIBCXX_NOEXCEPT + : _M_w() { } + +#if __cplusplus >= 201103L + constexpr _Base_bitset(unsigned long long __val) noexcept + : _M_w{ _WordT(__val) +#if __SIZEOF_LONG_LONG__ > __SIZEOF_LONG__ + , _WordT(__val >> _GLIBCXX_BITSET_BITS_PER_WORD) +#endif + } { } +#else + _Base_bitset(unsigned long __val) + : _M_w() + { _M_w[0] = __val; } +#endif + + static _GLIBCXX_CONSTEXPR size_t + _S_whichword(size_t __pos) _GLIBCXX_NOEXCEPT + { return __pos / _GLIBCXX_BITSET_BITS_PER_WORD; } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichbyte(size_t __pos) _GLIBCXX_NOEXCEPT + { return (__pos % _GLIBCXX_BITSET_BITS_PER_WORD) / __CHAR_BIT__; } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichbit(size_t __pos) _GLIBCXX_NOEXCEPT + { return __pos % _GLIBCXX_BITSET_BITS_PER_WORD; } + + static _GLIBCXX_CONSTEXPR _WordT + _S_maskbit(size_t __pos) _GLIBCXX_NOEXCEPT + { return (static_cast<_WordT>(1)) << _S_whichbit(__pos); } + + _WordT& + _M_getword(size_t __pos) _GLIBCXX_NOEXCEPT + { return _M_w[_S_whichword(__pos)]; } + + _GLIBCXX_CONSTEXPR _WordT + _M_getword(size_t __pos) const _GLIBCXX_NOEXCEPT + { return _M_w[_S_whichword(__pos)]; } + +#if __cplusplus >= 201103L + const _WordT* + _M_getdata() const noexcept + { return _M_w; } +#endif + + _WordT& + _M_hiword() _GLIBCXX_NOEXCEPT + { return _M_w[_Nw - 1]; } + + _GLIBCXX_CONSTEXPR _WordT + _M_hiword() const _GLIBCXX_NOEXCEPT + { return _M_w[_Nw - 1]; } + + void + _M_do_and(const _Base_bitset<_Nw>& __x) _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + _M_w[__i] &= __x._M_w[__i]; + } + + void + _M_do_or(const _Base_bitset<_Nw>& __x) _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + _M_w[__i] |= __x._M_w[__i]; + } + + void + _M_do_xor(const _Base_bitset<_Nw>& __x) _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + _M_w[__i] ^= __x._M_w[__i]; + } + + void + _M_do_left_shift(size_t __shift) _GLIBCXX_NOEXCEPT; + + void + _M_do_right_shift(size_t __shift) _GLIBCXX_NOEXCEPT; + + void + _M_do_flip() _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + _M_w[__i] = ~_M_w[__i]; + } + + void + _M_do_set() _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + _M_w[__i] = ~static_cast<_WordT>(0); + } + + void + _M_do_reset() _GLIBCXX_NOEXCEPT + { __builtin_memset(_M_w, 0, _Nw * sizeof(_WordT)); } + + bool + _M_is_equal(const _Base_bitset<_Nw>& __x) const _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; ++__i) + if (_M_w[__i] != __x._M_w[__i]) + return false; + return true; + } + + template + bool + _M_are_all() const _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw - 1; __i++) + if (_M_w[__i] != ~static_cast<_WordT>(0)) + return false; + return _M_hiword() == (~static_cast<_WordT>(0) + >> (_Nw * _GLIBCXX_BITSET_BITS_PER_WORD + - _Nb)); + } + + bool + _M_is_any() const _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + if (_M_w[__i] != static_cast<_WordT>(0)) + return true; + return false; + } + + size_t + _M_do_count() const _GLIBCXX_NOEXCEPT + { + size_t __result = 0; + for (size_t __i = 0; __i < _Nw; __i++) + __result += __builtin_popcountl(_M_w[__i]); + return __result; + } + + unsigned long + _M_do_to_ulong() const; + +#if __cplusplus >= 201103L + unsigned long long + _M_do_to_ullong() const; +#endif + + // find first "on" bit + size_t + _M_do_find_first(size_t) const _GLIBCXX_NOEXCEPT; + + // find the next "on" bit that follows "prev" + size_t + _M_do_find_next(size_t, size_t) const _GLIBCXX_NOEXCEPT; + }; + + // Definitions of non-inline functions from _Base_bitset. + template + void + _Base_bitset<_Nw>::_M_do_left_shift(size_t __shift) _GLIBCXX_NOEXCEPT + { + if (__builtin_expect(__shift != 0, 1)) + { + const size_t __wshift = __shift / _GLIBCXX_BITSET_BITS_PER_WORD; + const size_t __offset = __shift % _GLIBCXX_BITSET_BITS_PER_WORD; + + if (__offset == 0) + for (size_t __n = _Nw - 1; __n >= __wshift; --__n) + _M_w[__n] = _M_w[__n - __wshift]; + else + { + const size_t __sub_offset = (_GLIBCXX_BITSET_BITS_PER_WORD + - __offset); + for (size_t __n = _Nw - 1; __n > __wshift; --__n) + _M_w[__n] = ((_M_w[__n - __wshift] << __offset) + | (_M_w[__n - __wshift - 1] >> __sub_offset)); + _M_w[__wshift] = _M_w[0] << __offset; + } + + std::fill(_M_w + 0, _M_w + __wshift, static_cast<_WordT>(0)); + } + } + + template + void + _Base_bitset<_Nw>::_M_do_right_shift(size_t __shift) _GLIBCXX_NOEXCEPT + { + if (__builtin_expect(__shift != 0, 1)) + { + const size_t __wshift = __shift / _GLIBCXX_BITSET_BITS_PER_WORD; + const size_t __offset = __shift % _GLIBCXX_BITSET_BITS_PER_WORD; + const size_t __limit = _Nw - __wshift - 1; + + if (__offset == 0) + for (size_t __n = 0; __n <= __limit; ++__n) + _M_w[__n] = _M_w[__n + __wshift]; + else + { + const size_t __sub_offset = (_GLIBCXX_BITSET_BITS_PER_WORD + - __offset); + for (size_t __n = 0; __n < __limit; ++__n) + _M_w[__n] = ((_M_w[__n + __wshift] >> __offset) + | (_M_w[__n + __wshift + 1] << __sub_offset)); + _M_w[__limit] = _M_w[_Nw-1] >> __offset; + } + + std::fill(_M_w + __limit + 1, _M_w + _Nw, static_cast<_WordT>(0)); + } + } + + template + unsigned long + _Base_bitset<_Nw>::_M_do_to_ulong() const + { + for (size_t __i = 1; __i < _Nw; ++__i) + if (_M_w[__i]) + __throw_overflow_error(__N("_Base_bitset::_M_do_to_ulong")); + return _M_w[0]; + } + +#if __cplusplus >= 201103L + template + unsigned long long + _Base_bitset<_Nw>::_M_do_to_ullong() const + { + const bool __dw = sizeof(unsigned long long) > sizeof(unsigned long); + for (size_t __i = 1 + __dw; __i < _Nw; ++__i) + if (_M_w[__i]) + __throw_overflow_error(__N("_Base_bitset::_M_do_to_ullong")); + + if (__dw) + return _M_w[0] + (static_cast(_M_w[1]) + << _GLIBCXX_BITSET_BITS_PER_WORD); + return _M_w[0]; + } +#endif + + template + size_t + _Base_bitset<_Nw>:: + _M_do_find_first(size_t __not_found) const _GLIBCXX_NOEXCEPT + { + for (size_t __i = 0; __i < _Nw; __i++) + { + _WordT __thisword = _M_w[__i]; + if (__thisword != static_cast<_WordT>(0)) + return (__i * _GLIBCXX_BITSET_BITS_PER_WORD + + __builtin_ctzl(__thisword)); + } + // not found, so return an indication of failure. + return __not_found; + } + + template + size_t + _Base_bitset<_Nw>:: + _M_do_find_next(size_t __prev, size_t __not_found) const _GLIBCXX_NOEXCEPT + { + // make bound inclusive + ++__prev; + + // check out of bounds + if (__prev >= _Nw * _GLIBCXX_BITSET_BITS_PER_WORD) + return __not_found; + + // search first word + size_t __i = _S_whichword(__prev); + _WordT __thisword = _M_w[__i]; + + // mask off bits below bound + __thisword &= (~static_cast<_WordT>(0)) << _S_whichbit(__prev); + + if (__thisword != static_cast<_WordT>(0)) + return (__i * _GLIBCXX_BITSET_BITS_PER_WORD + + __builtin_ctzl(__thisword)); + + // check subsequent words + __i++; + for (; __i < _Nw; __i++) + { + __thisword = _M_w[__i]; + if (__thisword != static_cast<_WordT>(0)) + return (__i * _GLIBCXX_BITSET_BITS_PER_WORD + + __builtin_ctzl(__thisword)); + } + // not found, so return an indication of failure. + return __not_found; + } // end _M_do_find_next + + /** + * Base class, specialization for a single word. + * + * See documentation for bitset. + */ + template<> + struct _Base_bitset<1> + { + typedef unsigned long _WordT; + _WordT _M_w; + + _GLIBCXX_CONSTEXPR _Base_bitset() _GLIBCXX_NOEXCEPT + : _M_w(0) + { } + +#if __cplusplus >= 201103L + constexpr _Base_bitset(unsigned long long __val) noexcept +#else + _Base_bitset(unsigned long __val) +#endif + : _M_w(__val) + { } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichword(size_t __pos) _GLIBCXX_NOEXCEPT + { return __pos / _GLIBCXX_BITSET_BITS_PER_WORD; } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichbyte(size_t __pos) _GLIBCXX_NOEXCEPT + { return (__pos % _GLIBCXX_BITSET_BITS_PER_WORD) / __CHAR_BIT__; } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichbit(size_t __pos) _GLIBCXX_NOEXCEPT + { return __pos % _GLIBCXX_BITSET_BITS_PER_WORD; } + + static _GLIBCXX_CONSTEXPR _WordT + _S_maskbit(size_t __pos) _GLIBCXX_NOEXCEPT + { return (static_cast<_WordT>(1)) << _S_whichbit(__pos); } + + _WordT& + _M_getword(size_t) _GLIBCXX_NOEXCEPT + { return _M_w; } + + _GLIBCXX_CONSTEXPR _WordT + _M_getword(size_t) const _GLIBCXX_NOEXCEPT + { return _M_w; } + +#if __cplusplus >= 201103L + const _WordT* + _M_getdata() const noexcept + { return &_M_w; } +#endif + + _WordT& + _M_hiword() _GLIBCXX_NOEXCEPT + { return _M_w; } + + _GLIBCXX_CONSTEXPR _WordT + _M_hiword() const _GLIBCXX_NOEXCEPT + { return _M_w; } + + void + _M_do_and(const _Base_bitset<1>& __x) _GLIBCXX_NOEXCEPT + { _M_w &= __x._M_w; } + + void + _M_do_or(const _Base_bitset<1>& __x) _GLIBCXX_NOEXCEPT + { _M_w |= __x._M_w; } + + void + _M_do_xor(const _Base_bitset<1>& __x) _GLIBCXX_NOEXCEPT + { _M_w ^= __x._M_w; } + + void + _M_do_left_shift(size_t __shift) _GLIBCXX_NOEXCEPT + { _M_w <<= __shift; } + + void + _M_do_right_shift(size_t __shift) _GLIBCXX_NOEXCEPT + { _M_w >>= __shift; } + + void + _M_do_flip() _GLIBCXX_NOEXCEPT + { _M_w = ~_M_w; } + + void + _M_do_set() _GLIBCXX_NOEXCEPT + { _M_w = ~static_cast<_WordT>(0); } + + void + _M_do_reset() _GLIBCXX_NOEXCEPT + { _M_w = 0; } + + bool + _M_is_equal(const _Base_bitset<1>& __x) const _GLIBCXX_NOEXCEPT + { return _M_w == __x._M_w; } + + template + bool + _M_are_all() const _GLIBCXX_NOEXCEPT + { return _M_w == (~static_cast<_WordT>(0) + >> (_GLIBCXX_BITSET_BITS_PER_WORD - _Nb)); } + + bool + _M_is_any() const _GLIBCXX_NOEXCEPT + { return _M_w != 0; } + + size_t + _M_do_count() const _GLIBCXX_NOEXCEPT + { return __builtin_popcountl(_M_w); } + + unsigned long + _M_do_to_ulong() const _GLIBCXX_NOEXCEPT + { return _M_w; } + +#if __cplusplus >= 201103L + unsigned long long + _M_do_to_ullong() const noexcept + { return _M_w; } +#endif + + size_t + _M_do_find_first(size_t __not_found) const _GLIBCXX_NOEXCEPT + { + if (_M_w != 0) + return __builtin_ctzl(_M_w); + else + return __not_found; + } + + // find the next "on" bit that follows "prev" + size_t + _M_do_find_next(size_t __prev, size_t __not_found) const + _GLIBCXX_NOEXCEPT + { + ++__prev; + if (__prev >= ((size_t) _GLIBCXX_BITSET_BITS_PER_WORD)) + return __not_found; + + _WordT __x = _M_w >> __prev; + if (__x != 0) + return __builtin_ctzl(__x) + __prev; + else + return __not_found; + } + }; + + /** + * Base class, specialization for no storage (zero-length %bitset). + * + * See documentation for bitset. + */ + template<> + struct _Base_bitset<0> + { + typedef unsigned long _WordT; + + _GLIBCXX_CONSTEXPR _Base_bitset() _GLIBCXX_NOEXCEPT + { } + +#if __cplusplus >= 201103L + constexpr _Base_bitset(unsigned long long) noexcept +#else + _Base_bitset(unsigned long) +#endif + { } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichword(size_t __pos) _GLIBCXX_NOEXCEPT + { return __pos / _GLIBCXX_BITSET_BITS_PER_WORD; } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichbyte(size_t __pos) _GLIBCXX_NOEXCEPT + { return (__pos % _GLIBCXX_BITSET_BITS_PER_WORD) / __CHAR_BIT__; } + + static _GLIBCXX_CONSTEXPR size_t + _S_whichbit(size_t __pos) _GLIBCXX_NOEXCEPT + { return __pos % _GLIBCXX_BITSET_BITS_PER_WORD; } + + static _GLIBCXX_CONSTEXPR _WordT + _S_maskbit(size_t __pos) _GLIBCXX_NOEXCEPT + { return (static_cast<_WordT>(1)) << _S_whichbit(__pos); } + + // This would normally give access to the data. The bounds-checking + // in the bitset class will prevent the user from getting this far, + // but (1) it must still return an lvalue to compile, and (2) the + // user might call _Unchecked_set directly, in which case this /needs/ + // to fail. Let's not penalize zero-length users unless they actually + // make an unchecked call; all the memory ugliness is therefore + // localized to this single should-never-get-this-far function. + _WordT& + _M_getword(size_t) _GLIBCXX_NOEXCEPT + { + __throw_out_of_range(__N("_Base_bitset::_M_getword")); + return *new _WordT; + } + + _GLIBCXX_CONSTEXPR _WordT + _M_getword(size_t) const _GLIBCXX_NOEXCEPT + { return 0; } + + _GLIBCXX_CONSTEXPR _WordT + _M_hiword() const _GLIBCXX_NOEXCEPT + { return 0; } + + void + _M_do_and(const _Base_bitset<0>&) _GLIBCXX_NOEXCEPT + { } + + void + _M_do_or(const _Base_bitset<0>&) _GLIBCXX_NOEXCEPT + { } + + void + _M_do_xor(const _Base_bitset<0>&) _GLIBCXX_NOEXCEPT + { } + + void + _M_do_left_shift(size_t) _GLIBCXX_NOEXCEPT + { } + + void + _M_do_right_shift(size_t) _GLIBCXX_NOEXCEPT + { } + + void + _M_do_flip() _GLIBCXX_NOEXCEPT + { } + + void + _M_do_set() _GLIBCXX_NOEXCEPT + { } + + void + _M_do_reset() _GLIBCXX_NOEXCEPT + { } + + // Are all empty bitsets equal to each other? Are they equal to + // themselves? How to compare a thing which has no state? What is + // the sound of one zero-length bitset clapping? + bool + _M_is_equal(const _Base_bitset<0>&) const _GLIBCXX_NOEXCEPT + { return true; } + + template + bool + _M_are_all() const _GLIBCXX_NOEXCEPT + { return true; } + + bool + _M_is_any() const _GLIBCXX_NOEXCEPT + { return false; } + + size_t + _M_do_count() const _GLIBCXX_NOEXCEPT + { return 0; } + + unsigned long + _M_do_to_ulong() const _GLIBCXX_NOEXCEPT + { return 0; } + +#if __cplusplus >= 201103L + unsigned long long + _M_do_to_ullong() const noexcept + { return 0; } +#endif + + // Normally "not found" is the size, but that could also be + // misinterpreted as an index in this corner case. Oh well. + size_t + _M_do_find_first(size_t) const _GLIBCXX_NOEXCEPT + { return 0; } + + size_t + _M_do_find_next(size_t, size_t) const _GLIBCXX_NOEXCEPT + { return 0; } + }; + + + // Helper class to zero out the unused high-order bits in the highest word. + template + struct _Sanitize + { + typedef unsigned long _WordT; + + static void + _S_do_sanitize(_WordT& __val) _GLIBCXX_NOEXCEPT + { __val &= ~((~static_cast<_WordT>(0)) << _Extrabits); } + }; + + template<> + struct _Sanitize<0> + { + typedef unsigned long _WordT; + + static void + _S_do_sanitize(_WordT) _GLIBCXX_NOEXCEPT { } + }; + +#if __cplusplus >= 201103L + template + struct _Sanitize_val + { + static constexpr unsigned long long + _S_do_sanitize_val(unsigned long long __val) + { return __val; } + }; + + template + struct _Sanitize_val<_Nb, true> + { + static constexpr unsigned long long + _S_do_sanitize_val(unsigned long long __val) + { return __val & ~((~static_cast(0)) << _Nb); } + }; +#endif + + /** + * @brief The %bitset class represents a @e fixed-size sequence of bits. + * @ingroup utilities + * + * (Note that %bitset does @e not meet the formal requirements of a + * container. Mainly, it lacks iterators.) + * + * The template argument, @a Nb, may be any non-negative number, + * specifying the number of bits (e.g., "0", "12", "1024*1024"). + * + * In the general unoptimized case, storage is allocated in word-sized + * blocks. Let B be the number of bits in a word, then (Nb+(B-1))/B + * words will be used for storage. B - Nb%B bits are unused. (They are + * the high-order bits in the highest word.) It is a class invariant + * that those unused bits are always zero. + * + * If you think of %bitset as a simple array of bits, be + * aware that your mental picture is reversed: a %bitset behaves + * the same way as bits in integers do, with the bit at index 0 in + * the least significant / right-hand position, and the bit at + * index Nb-1 in the most significant / left-hand position. + * Thus, unlike other containers, a %bitset's index counts from + * right to left, to put it very loosely. + * + * + * Also see: + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/ext_containers.html + * for a description of extensions. + * + * Most of the actual code isn't contained in %bitset<> itself, but in the + * base class _Base_bitset. The base class works with whole words, not with + * individual bits. This allows us to specialize _Base_bitset for the + * important special case where the %bitset is only a single word. + * + * Extra confusion can result due to the fact that the storage for + * _Base_bitset @e is a regular array, and is indexed as such. This is + * carefully encapsulated. + */ + template + class bitset + : private _Base_bitset<_GLIBCXX_BITSET_WORDS(_Nb)> + { + private: + typedef _Base_bitset<_GLIBCXX_BITSET_WORDS(_Nb)> _Base; + typedef unsigned long _WordT; + + void _M_check(size_t __position, const char *__s) const + { + if (__position >= _Nb) + __throw_out_of_range_fmt(__N("%s: __position (which is %zu) " + ">= _Nb (which is %zu)"), + __s, __position, _Nb); + } + + void + _M_do_sanitize() _GLIBCXX_NOEXCEPT + { + typedef _Sanitize<_Nb % _GLIBCXX_BITSET_BITS_PER_WORD> __sanitize_type; + __sanitize_type::_S_do_sanitize(this->_M_hiword()); + } + +#if __cplusplus >= 201103L + friend struct std::hash; +#endif + + public: + /** + * This encapsulates the concept of a single bit. An instance of this + * class is a proxy for an actual bit; this way the individual bit + * operations are done as faster word-size bitwise instructions. + * + * Most users will never need to use this class directly; conversions + * to and from bool are automatic and should be transparent. Overloaded + * operators help to preserve the illusion. + * + * (On a typical system, this bit %reference is 64 + * times the size of an actual bit. Ha.) + */ + class reference + { + friend class bitset; + + _WordT* _M_wp; + size_t _M_bpos; + + // left undefined + reference(); + + public: + reference(bitset& __b, size_t __pos) _GLIBCXX_NOEXCEPT + { + _M_wp = &__b._M_getword(__pos); + _M_bpos = _Base::_S_whichbit(__pos); + } + +#if __cplusplus >= 201103L + reference(const reference&) = default; +#endif + + ~reference() _GLIBCXX_NOEXCEPT + { } + + // For b[i] = __x; + reference& + operator=(bool __x) _GLIBCXX_NOEXCEPT + { + if (__x) + *_M_wp |= _Base::_S_maskbit(_M_bpos); + else + *_M_wp &= ~_Base::_S_maskbit(_M_bpos); + return *this; + } + + // For b[i] = b[__j]; + reference& + operator=(const reference& __j) _GLIBCXX_NOEXCEPT + { + if ((*(__j._M_wp) & _Base::_S_maskbit(__j._M_bpos))) + *_M_wp |= _Base::_S_maskbit(_M_bpos); + else + *_M_wp &= ~_Base::_S_maskbit(_M_bpos); + return *this; + } + + // Flips the bit + bool + operator~() const _GLIBCXX_NOEXCEPT + { return (*(_M_wp) & _Base::_S_maskbit(_M_bpos)) == 0; } + + // For __x = b[i]; + operator bool() const _GLIBCXX_NOEXCEPT + { return (*(_M_wp) & _Base::_S_maskbit(_M_bpos)) != 0; } + + // For b[i].flip(); + reference& + flip() _GLIBCXX_NOEXCEPT + { + *_M_wp ^= _Base::_S_maskbit(_M_bpos); + return *this; + } + }; + friend class reference; + + // 23.3.5.1 constructors: + /// All bits set to zero. + _GLIBCXX_CONSTEXPR bitset() _GLIBCXX_NOEXCEPT + { } + + /// Initial bits bitwise-copied from a single word (others set to zero). +#if __cplusplus >= 201103L + constexpr bitset(unsigned long long __val) noexcept + : _Base(_Sanitize_val<_Nb>::_S_do_sanitize_val(__val)) { } +#else + bitset(unsigned long __val) + : _Base(__val) + { _M_do_sanitize(); } +#endif + + // 23.3.5.2 bitset operations: + //@{ + /** + * Operations on bitsets. + * @param __rhs A same-sized bitset. + * + * These should be self-explanatory. + */ + bitset<_Nb>& + operator&=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT + { + this->_M_do_and(__rhs); + return *this; + } + + bitset<_Nb>& + operator|=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT + { + this->_M_do_or(__rhs); + return *this; + } + + bitset<_Nb>& + operator^=(const bitset<_Nb>& __rhs) _GLIBCXX_NOEXCEPT + { + this->_M_do_xor(__rhs); + return *this; + } + //@} + + //@{ + /** + * Operations on bitsets. + * @param __position The number of places to shift. + * + * These should be self-explanatory. + */ + bitset<_Nb>& + operator<<=(size_t __position) _GLIBCXX_NOEXCEPT + { + if (__builtin_expect(__position < _Nb, 1)) + { + this->_M_do_left_shift(__position); + this->_M_do_sanitize(); + } + else + this->_M_do_reset(); + return *this; + } + + bitset<_Nb>& + operator>>=(size_t __position) _GLIBCXX_NOEXCEPT + { + if (__builtin_expect(__position < _Nb, 1)) + { + this->_M_do_right_shift(__position); + this->_M_do_sanitize(); + } + else + this->_M_do_reset(); + return *this; + } + //@} + + //@{ + /** + * These versions of single-bit set, reset, flip, and test are + * extensions from the SGI version. They do no range checking. + * @ingroup SGIextensions + */ + bitset<_Nb>& + _Unchecked_set(size_t __pos) _GLIBCXX_NOEXCEPT + { + this->_M_getword(__pos) |= _Base::_S_maskbit(__pos); + return *this; + } + + bitset<_Nb>& + _Unchecked_set(size_t __pos, int __val) _GLIBCXX_NOEXCEPT + { + if (__val) + this->_M_getword(__pos) |= _Base::_S_maskbit(__pos); + else + this->_M_getword(__pos) &= ~_Base::_S_maskbit(__pos); + return *this; + } + + bitset<_Nb>& + _Unchecked_reset(size_t __pos) _GLIBCXX_NOEXCEPT + { + this->_M_getword(__pos) &= ~_Base::_S_maskbit(__pos); + return *this; + } + + bitset<_Nb>& + _Unchecked_flip(size_t __pos) _GLIBCXX_NOEXCEPT + { + this->_M_getword(__pos) ^= _Base::_S_maskbit(__pos); + return *this; + } + + _GLIBCXX_CONSTEXPR bool + _Unchecked_test(size_t __pos) const _GLIBCXX_NOEXCEPT + { return ((this->_M_getword(__pos) & _Base::_S_maskbit(__pos)) + != static_cast<_WordT>(0)); } + //@} + + // Set, reset, and flip. + /** + * @brief Sets every bit to true. + */ + bitset<_Nb>& + set() _GLIBCXX_NOEXCEPT + { + this->_M_do_set(); + this->_M_do_sanitize(); + return *this; + } + + /** + * @brief Sets a given bit to a particular value. + * @param __position The index of the bit. + * @param __val Either true or false, defaults to true. + * @throw std::out_of_range If @a pos is bigger the size of the %set. + */ + bitset<_Nb>& + set(size_t __position, bool __val = true) + { + this->_M_check(__position, __N("bitset::set")); + return _Unchecked_set(__position, __val); + } + + /** + * @brief Sets every bit to false. + */ + bitset<_Nb>& + reset() _GLIBCXX_NOEXCEPT + { + this->_M_do_reset(); + return *this; + } + + /** + * @brief Sets a given bit to false. + * @param __position The index of the bit. + * @throw std::out_of_range If @a pos is bigger the size of the %set. + * + * Same as writing @c set(pos,false). + */ + bitset<_Nb>& + reset(size_t __position) + { + this->_M_check(__position, __N("bitset::reset")); + return _Unchecked_reset(__position); + } + + /** + * @brief Toggles every bit to its opposite value. + */ + bitset<_Nb>& + flip() _GLIBCXX_NOEXCEPT + { + this->_M_do_flip(); + this->_M_do_sanitize(); + return *this; + } + + /** + * @brief Toggles a given bit to its opposite value. + * @param __position The index of the bit. + * @throw std::out_of_range If @a pos is bigger the size of the %set. + */ + bitset<_Nb>& + flip(size_t __position) + { + this->_M_check(__position, __N("bitset::flip")); + return _Unchecked_flip(__position); + } + + /// See the no-argument flip(). + bitset<_Nb> + operator~() const _GLIBCXX_NOEXCEPT + { return bitset<_Nb>(*this).flip(); } + + //@{ + /** + * @brief Array-indexing support. + * @param __position Index into the %bitset. + * @return A bool for a const %bitset. For non-const + * bitsets, an instance of the reference proxy class. + * @note These operators do no range checking and throw no exceptions, + * as required by DR 11 to the standard. + * + * _GLIBCXX_RESOLVE_LIB_DEFECTS Note that this implementation already + * resolves DR 11 (items 1 and 2), but does not do the range-checking + * required by that DR's resolution. -pme + * The DR has since been changed: range-checking is a precondition + * (users' responsibility), and these functions must not throw. -pme + */ + reference + operator[](size_t __position) + { return reference(*this, __position); } + + _GLIBCXX_CONSTEXPR bool + operator[](size_t __position) const + { return _Unchecked_test(__position); } + //@} + + /** + * @brief Returns a numerical interpretation of the %bitset. + * @return The integral equivalent of the bits. + * @throw std::overflow_error If there are too many bits to be + * represented in an @c unsigned @c long. + */ + unsigned long + to_ulong() const + { return this->_M_do_to_ulong(); } + +#if __cplusplus >= 201103L + unsigned long long + to_ullong() const + { return this->_M_do_to_ullong(); } +#endif + + /// Returns the number of bits which are set. + size_t + count() const _GLIBCXX_NOEXCEPT + { return this->_M_do_count(); } + + /// Returns the total number of bits. + _GLIBCXX_CONSTEXPR size_t + size() const _GLIBCXX_NOEXCEPT + { return _Nb; } + + //@{ + /// These comparisons for equality/inequality are, well, @e bitwise. + bool + operator==(const bitset<_Nb>& __rhs) const _GLIBCXX_NOEXCEPT + { return this->_M_is_equal(__rhs); } + +#if __cpp_impl_three_way_comparison < 201907L + bool + operator!=(const bitset<_Nb>& __rhs) const _GLIBCXX_NOEXCEPT + { return !this->_M_is_equal(__rhs); } +#endif + //@} + + /** + * @brief Tests the value of a bit. + * @param __position The index of a bit. + * @return The value at @a pos. + * @throw std::out_of_range If @a pos is bigger the size of the %set. + */ + bool + test(size_t __position) const + { + this->_M_check(__position, __N("bitset::test")); + return _Unchecked_test(__position); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 693. std::bitset::all() missing. + /** + * @brief Tests whether all the bits are on. + * @return True if all the bits are set. + */ + bool + all() const _GLIBCXX_NOEXCEPT + { return this->template _M_are_all<_Nb>(); } + + /** + * @brief Tests whether any of the bits are on. + * @return True if at least one bit is set. + */ + bool + any() const _GLIBCXX_NOEXCEPT + { return this->_M_is_any(); } + + /** + * @brief Tests whether any of the bits are on. + * @return True if none of the bits are set. + */ + bool + none() const _GLIBCXX_NOEXCEPT + { return !this->_M_is_any(); } + + //@{ + /// Self-explanatory. + bitset<_Nb> + operator<<(size_t __position) const _GLIBCXX_NOEXCEPT + { return bitset<_Nb>(*this) <<= __position; } + + bitset<_Nb> + operator>>(size_t __position) const _GLIBCXX_NOEXCEPT + { return bitset<_Nb>(*this) >>= __position; } + //@} + + /** + * @brief Finds the index of the first "on" bit. + * @return The index of the first bit set, or size() if not found. + * @ingroup SGIextensions + * @sa _Find_next + */ + size_t + _Find_first() const _GLIBCXX_NOEXCEPT + { return this->_M_do_find_first(_Nb); } + + /** + * @brief Finds the index of the next "on" bit after prev. + * @return The index of the next bit set, or size() if not found. + * @param __prev Where to start searching. + * @ingroup SGIextensions + * @sa _Find_first + */ + size_t + _Find_next(size_t __prev) const _GLIBCXX_NOEXCEPT + { return this->_M_do_find_next(__prev, _Nb); } + }; + + // 23.3.5.3 bitset operations: + //@{ + /** + * @brief Global bitwise operations on bitsets. + * @param __x A bitset. + * @param __y A bitset of the same size as @a __x. + * @return A new bitset. + * + * These should be self-explanatory. + */ + template + inline bitset<_Nb> + operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT + { + bitset<_Nb> __result(__x); + __result &= __y; + return __result; + } + + template + inline bitset<_Nb> + operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT + { + bitset<_Nb> __result(__x); + __result |= __y; + return __result; + } + + template + inline bitset<_Nb> + operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y) _GLIBCXX_NOEXCEPT + { + bitset<_Nb> __result(__x); + __result ^= __y; + return __result; + } + //@} + +_GLIBCXX_END_NAMESPACE_CONTAINER +} // namespace std + +#undef _GLIBCXX_BITSET_WORDS +#undef _GLIBCXX_BITSET_BITS_PER_WORD +#undef _GLIBCXX_BITSET_BITS_PER_ULL + +#if __cplusplus >= 201103L + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // DR 1182. + /// std::hash specialization for bitset. + template + struct hash<_GLIBCXX_STD_C::bitset<_Nb>> + : public __hash_base> + { + size_t + operator()(const _GLIBCXX_STD_C::bitset<_Nb>& __b) const noexcept + { + const size_t __clength = (_Nb + __CHAR_BIT__ - 1) / __CHAR_BIT__; + return std::_Hash_impl::hash(__b._M_getdata(), __clength); + } + }; + + template<> + struct hash<_GLIBCXX_STD_C::bitset<0>> + : public __hash_base> + { + size_t + operator()(const _GLIBCXX_STD_C::bitset<0>&) const noexcept + { return 0; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#endif /* _GLIBCXX_BITSET */ diff --git a/resources/sources/avr-libstdcpp/include/cassert b/resources/sources/avr-libstdcpp/include/cassert new file mode 100644 index 000000000..e1c0724b8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cassert @@ -0,0 +1,44 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file cassert + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c assert.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 19.2 Assertions +// + +// No include guards on this header... + +#pragma GCC system_header + +#include +#include diff --git a/resources/sources/avr-libstdcpp/include/ccomplex b/resources/sources/avr-libstdcpp/include/ccomplex new file mode 100644 index 000000000..7a9044444 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ccomplex @@ -0,0 +1,42 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/ccomplex + * This is a Standard C++ Library header. + */ + +#pragma GCC system_header + +#ifndef _GLIBCXX_CCOMPLEX +#define _GLIBCXX_CCOMPLEX 1 + +#if __cplusplus < 201103L +# include +#endif + +extern "C++" { +#include +} + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cctype b/resources/sources/avr-libstdcpp/include/cctype new file mode 100644 index 000000000..0881d47c8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cctype @@ -0,0 +1,94 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cctype + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c ctype.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CCTYPE +#define _GLIBCXX_CCTYPE 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef isalnum +#undef isalpha +#undef iscntrl +#undef isdigit +#undef isgraph +#undef islower +#undef isprint +#undef ispunct +#undef isspace +#undef isupper +#undef isxdigit +#undef tolower +#undef toupper + +namespace std +{ + using ::isalnum; + using ::isalpha; + using ::iscntrl; + using ::isdigit; + using ::isgraph; + using ::islower; + using ::isprint; + using ::ispunct; + using ::isspace; + using ::isupper; + using ::isxdigit; + using ::tolower; + using ::toupper; +} // namespace std + +#if __cplusplus >= 201103L + +#ifdef _GLIBCXX_USE_C99_CTYPE_TR1 + +#undef isblank + +namespace std +{ + using ::isblank; +} // namespace std + +#endif // _GLIBCXX_USE_C99_CTYPE_TR1 + +#endif // C++11 + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cerrno b/resources/sources/avr-libstdcpp/include/cerrno new file mode 100644 index 000000000..83cbf24a0 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cerrno @@ -0,0 +1,52 @@ +// The -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file cerrno + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c errno.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 19.3 Error numbers +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CERRNO +#define _GLIBCXX_CERRNO 1 + +// Adhere to section 17.4.1.2 clause 5 of ISO 14882:1998 +#ifndef errno +#define errno errno +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cfenv b/resources/sources/avr-libstdcpp/include/cfenv new file mode 100644 index 000000000..376eea234 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cfenv @@ -0,0 +1,84 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cfenv + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_CFENV +#define _GLIBCXX_CFENV 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +#if _GLIBCXX_HAVE_FENV_H +# include +#endif + +#ifdef _GLIBCXX_USE_C99_FENV_TR1 + +#undef feclearexcept +#undef fegetexceptflag +#undef feraiseexcept +#undef fesetexceptflag +#undef fetestexcept +#undef fegetround +#undef fesetround +#undef fegetenv +#undef feholdexcept +#undef fesetenv +#undef feupdateenv + +namespace std +{ + // types + using ::fenv_t; + using ::fexcept_t; + + // functions + using ::feclearexcept; + using ::fegetexceptflag; + using ::feraiseexcept; + using ::fesetexceptflag; + using ::fetestexcept; + + using ::fegetround; + using ::fesetround; + + using ::fegetenv; + using ::feholdexcept; + using ::fesetenv; + using ::feupdateenv; +} // namespace std + +#endif // _GLIBCXX_USE_C99_FENV_TR1 + +#endif // C++11 + +#endif // _GLIBCXX_CFENV diff --git a/resources/sources/avr-libstdcpp/include/cfloat b/resources/sources/avr-libstdcpp/include/cfloat new file mode 100644 index 000000000..3c20ea8f9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cfloat @@ -0,0 +1,56 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cfloat + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c float.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 18.2.2 Implementation properties: C library +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CFLOAT +#define _GLIBCXX_CFLOAT 1 + +#if __cplusplus >= 201103L +# ifndef DECIMAL_DIG +# define DECIMAL_DIG __DECIMAL_DIG__ +# endif +# ifndef FLT_EVAL_METHOD +# define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ +# endif +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/chrono b/resources/sources/avr-libstdcpp/include/chrono new file mode 100644 index 000000000..ad8507090 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/chrono @@ -0,0 +1,1131 @@ +// -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/chrono + * This is a Standard C++ Library header. + * @ingroup chrono + */ + +#ifndef _GLIBCXX_CHRONO +#define _GLIBCXX_CHRONO 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include +#include // for literals support. +#if __cplusplus > 201703L +# include +# include +#endif +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup chrono Time + * @ingroup utilities + * + * Classes and functions for time. + * @{ + */ + + /** @namespace std::chrono + * @brief ISO C++ 2011 namespace for date and time utilities + */ + namespace chrono + { + template> + struct duration; + + template + struct time_point; + } + + // 20.11.4.3 specialization of common_type (for duration, sfinae-friendly) + + /// @cond undocumented + + template + struct __duration_common_type + { }; + + template + struct __duration_common_type<_CT, _Period1, _Period2, + __void_t> + { + private: + using __gcd_num = __static_gcd<_Period1::num, _Period2::num>; + using __gcd_den = __static_gcd<_Period1::den, _Period2::den>; + using __cr = typename _CT::type; + using __r = ratio<__gcd_num::value, + (_Period1::den / __gcd_den::value) * _Period2::den>; + + public: + using type = chrono::duration<__cr, __r>; + }; + + template + struct __duration_common_type<__failure_type, _Period1, _Period2> + { typedef __failure_type type; }; + + /// @endcond + + /// Specialization of common_type for chrono::duration types. + /// @relates duration + template + struct common_type, + chrono::duration<_Rep2, _Period2>> + : __duration_common_type, _Period1, _Period2> + { }; + + // 20.11.4.3 specialization of common_type (for time_point, sfinae-friendly) + + /// @cond undocumented + + template + struct __timepoint_common_type + { }; + + template + struct __timepoint_common_type<_CT, _Clock, __void_t> + { + using type = chrono::time_point<_Clock, typename _CT::type>; + }; + + /// @endcond + + /// Specialization of common_type for chrono::time_point types. + /// @relates time_point + template + struct common_type, + chrono::time_point<_Clock, _Duration2>> + : __timepoint_common_type, _Clock> + { }; + + // @} group chrono + + namespace chrono + { + /// @addtogroup chrono + /// @{ + + /// @cond undocumented + + // Primary template for duration_cast impl. + template + struct __duration_cast_impl + { + template + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>(static_cast<_CR>(__d.count()) + * static_cast<_CR>(_CF::num) + / static_cast<_CR>(_CF::den))); + } + }; + + template + struct __duration_cast_impl<_ToDur, _CF, _CR, true, true> + { + template + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>(__d.count())); + } + }; + + template + struct __duration_cast_impl<_ToDur, _CF, _CR, true, false> + { + template + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>( + static_cast<_CR>(__d.count()) / static_cast<_CR>(_CF::den))); + } + }; + + template + struct __duration_cast_impl<_ToDur, _CF, _CR, false, true> + { + template + static constexpr _ToDur + __cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::rep __to_rep; + return _ToDur(static_cast<__to_rep>( + static_cast<_CR>(__d.count()) * static_cast<_CR>(_CF::num))); + } + }; + + template + struct __is_duration + : std::false_type + { }; + + template + struct __is_duration> + : std::true_type + { }; + + template + using __enable_if_is_duration + = typename enable_if<__is_duration<_Tp>::value, _Tp>::type; + + template + using __disable_if_is_duration + = typename enable_if::value, _Tp>::type; + + /// @endcond + + /// duration_cast + template + constexpr __enable_if_is_duration<_ToDur> + duration_cast(const duration<_Rep, _Period>& __d) + { + typedef typename _ToDur::period __to_period; + typedef typename _ToDur::rep __to_rep; + typedef ratio_divide<_Period, __to_period> __cf; + typedef typename common_type<__to_rep, _Rep, intmax_t>::type + __cr; + typedef __duration_cast_impl<_ToDur, __cf, __cr, + __cf::num == 1, __cf::den == 1> __dc; + return __dc::__cast(__d); + } + + /// treat_as_floating_point + template + struct treat_as_floating_point + : is_floating_point<_Rep> + { }; + +#if __cplusplus > 201402L + template + inline constexpr bool treat_as_floating_point_v = + treat_as_floating_point<_Rep>::value; +#endif // C++17 + +#if __cplusplus > 201703L + template + struct is_clock; + + template + inline constexpr bool is_clock_v = is_clock<_Tp>::value; + +#if __cpp_lib_concepts + template + struct is_clock : false_type + { }; + + template + requires requires { + typename _Tp::rep; + typename _Tp::period; + typename _Tp::duration; + typename _Tp::time_point::clock; + typename _Tp::time_point::duration; + { &_Tp::is_steady } -> same_as; + { _Tp::now() } -> same_as; + requires same_as>; + requires same_as; + } + struct is_clock<_Tp> : true_type + { }; +#else + template + struct __is_clock_impl : false_type + { }; + + template + struct __is_clock_impl<_Tp, + void_t> + : __and_>, + is_same, + is_same, + is_same>::type + { }; + + template + struct is_clock : __is_clock_impl<_Tp>::type + { }; +#endif +#endif // C++20 + +#if __cplusplus >= 201703L +# define __cpp_lib_chrono 201611 + + template + constexpr __enable_if_is_duration<_ToDur> + floor(const duration<_Rep, _Period>& __d) + { + auto __to = chrono::duration_cast<_ToDur>(__d); + if (__to > __d) + return __to - _ToDur{1}; + return __to; + } + + template + constexpr __enable_if_is_duration<_ToDur> + ceil(const duration<_Rep, _Period>& __d) + { + auto __to = chrono::duration_cast<_ToDur>(__d); + if (__to < __d) + return __to + _ToDur{1}; + return __to; + } + + template + constexpr enable_if_t< + __and_<__is_duration<_ToDur>, + __not_>>::value, + _ToDur> + round(const duration<_Rep, _Period>& __d) + { + _ToDur __t0 = chrono::floor<_ToDur>(__d); + _ToDur __t1 = __t0 + _ToDur{1}; + auto __diff0 = __d - __t0; + auto __diff1 = __t1 - __d; + if (__diff0 == __diff1) + { + if (__t0.count() & 1) + return __t1; + return __t0; + } + else if (__diff0 < __diff1) + return __t0; + return __t1; + } + + template + constexpr + enable_if_t::is_signed, duration<_Rep, _Period>> + abs(duration<_Rep, _Period> __d) + { + if (__d >= __d.zero()) + return __d; + return -__d; + } +#endif // C++17 + + /// duration_values + template + struct duration_values + { + static constexpr _Rep + zero() noexcept + { return _Rep(0); } + + static constexpr _Rep + max() noexcept + { return numeric_limits<_Rep>::max(); } + + static constexpr _Rep + min() noexcept + { return numeric_limits<_Rep>::lowest(); } + }; + + /// @cond undocumented + + template + struct __is_ratio + : std::false_type + { }; + + template + struct __is_ratio> + : std::true_type + { }; + + /// @endcond + + /// duration + template + struct duration + { + private: + template + using __is_float = treat_as_floating_point<_Rep2>; + + // _Period2 is an exact multiple of _Period + template + using __is_harmonic + = __bool_constant::den == 1>; + + public: + + typedef _Rep rep; + typedef _Period period; + + static_assert(!__is_duration<_Rep>::value, "rep cannot be a duration"); + static_assert(__is_ratio<_Period>::value, + "period must be a specialization of ratio"); + static_assert(_Period::num > 0, "period must be positive"); + + // 20.11.5.1 construction / copy / destroy + constexpr duration() = default; + + duration(const duration&) = default; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3050. Conversion specification problem in chrono::duration + template, + __or_<__is_float, __not_<__is_float<_Rep2>>>>> + constexpr explicit duration(const _Rep2& __rep) + : __r(static_cast(__rep)) { } + + template, + __and_<__is_harmonic<_Period2>, + __not_<__is_float<_Rep2>>>>>> + constexpr duration(const duration<_Rep2, _Period2>& __d) + : __r(duration_cast(__d).count()) { } + + ~duration() = default; + duration& operator=(const duration&) = default; + + // 20.11.5.2 observer + constexpr rep + count() const + { return __r; } + + // 20.11.5.3 arithmetic + constexpr duration + operator+() const + { return *this; } + + constexpr duration + operator-() const + { return duration(-__r); } + + _GLIBCXX17_CONSTEXPR duration& + operator++() + { + ++__r; + return *this; + } + + _GLIBCXX17_CONSTEXPR duration + operator++(int) + { return duration(__r++); } + + _GLIBCXX17_CONSTEXPR duration& + operator--() + { + --__r; + return *this; + } + + _GLIBCXX17_CONSTEXPR duration + operator--(int) + { return duration(__r--); } + + _GLIBCXX17_CONSTEXPR duration& + operator+=(const duration& __d) + { + __r += __d.count(); + return *this; + } + + _GLIBCXX17_CONSTEXPR duration& + operator-=(const duration& __d) + { + __r -= __d.count(); + return *this; + } + + _GLIBCXX17_CONSTEXPR duration& + operator*=(const rep& __rhs) + { + __r *= __rhs; + return *this; + } + + _GLIBCXX17_CONSTEXPR duration& + operator/=(const rep& __rhs) + { + __r /= __rhs; + return *this; + } + + // DR 934. + template + _GLIBCXX17_CONSTEXPR + typename enable_if::value, + duration&>::type + operator%=(const rep& __rhs) + { + __r %= __rhs; + return *this; + } + + template + _GLIBCXX17_CONSTEXPR + typename enable_if::value, + duration&>::type + operator%=(const duration& __d) + { + __r %= __d.count(); + return *this; + } + + // 20.11.5.4 special values + static constexpr duration + zero() noexcept + { return duration(duration_values::zero()); } + + static constexpr duration + min() noexcept + { return duration(duration_values::min()); } + + static constexpr duration + max() noexcept + { return duration(duration_values::max()); } + + private: + rep __r; + }; + + /// @relates duration @{ + + /// The sum of two durations. + template + constexpr typename common_type, + duration<_Rep2, _Period2>>::type + operator+(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__cd(__lhs).count() + __cd(__rhs).count()); + } + + /// The difference between two durations. + template + constexpr typename common_type, + duration<_Rep2, _Period2>>::type + operator-(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__cd(__lhs).count() - __cd(__rhs).count()); + } + + /// @} + + /// @cond undocumented + + // SFINAE helper to obtain common_type<_Rep1, _Rep2> only if _Rep2 + // is implicitly convertible to it. + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3050. Conversion specification problem in chrono::duration constructor + template::type> + using __common_rep_t = typename + enable_if::value, _CRep>::type; + + /// @endcond + + /// @relates duration @{ + + /// Multiply a duration by a scalar value. + template + constexpr duration<__common_rep_t<_Rep1, _Rep2>, _Period> + operator*(const duration<_Rep1, _Period>& __d, const _Rep2& __s) + { + typedef duration::type, _Period> + __cd; + return __cd(__cd(__d).count() * __s); + } + + /// Multiply a duration by a scalar value. + template + constexpr duration<__common_rep_t<_Rep2, _Rep1>, _Period> + operator*(const _Rep1& __s, const duration<_Rep2, _Period>& __d) + { return __d * __s; } + + template + constexpr + duration<__common_rep_t<_Rep1, __disable_if_is_duration<_Rep2>>, _Period> + operator/(const duration<_Rep1, _Period>& __d, const _Rep2& __s) + { + typedef duration::type, _Period> + __cd; + return __cd(__cd(__d).count() / __s); + } + + template + constexpr typename common_type<_Rep1, _Rep2>::type + operator/(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__lhs).count() / __cd(__rhs).count(); + } + + // DR 934. + template + constexpr + duration<__common_rep_t<_Rep1, __disable_if_is_duration<_Rep2>>, _Period> + operator%(const duration<_Rep1, _Period>& __d, const _Rep2& __s) + { + typedef duration::type, _Period> + __cd; + return __cd(__cd(__d).count() % __s); + } + + template + constexpr typename common_type, + duration<_Rep2, _Period2>>::type + operator%(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __cd; + return __cd(__cd(__lhs).count() % __cd(__rhs).count()); + } + + // comparisons + + template + constexpr bool + operator==(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __ct; + return __ct(__lhs).count() == __ct(__rhs).count(); + } + + template + constexpr bool + operator<(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<__dur1,__dur2>::type __ct; + return __ct(__lhs).count() < __ct(__rhs).count(); + } + +#if __cpp_lib_three_way_comparison + template + requires three_way_comparable> + constexpr auto + operator<=>(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + using __ct = common_type_t, + duration<_Rep2, _Period2>>; + return __ct(__lhs).count() <=> __ct(__rhs).count(); + } +#else + template + constexpr bool + operator!=(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return !(__lhs == __rhs); } +#endif + + template + constexpr bool + operator<=(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return !(__rhs < __lhs); } + + template + constexpr bool + operator>(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return __rhs < __lhs; } + + template + constexpr bool + operator>=(const duration<_Rep1, _Period1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { return !(__lhs < __rhs); } + + /// @} + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 +# define _GLIBCXX_CHRONO_INT64_T int64_t +#elif defined __INT64_TYPE__ +# define _GLIBCXX_CHRONO_INT64_T __INT64_TYPE__ +#else + static_assert(std::numeric_limits::digits >= 64, + "Representation type for nanoseconds must have at least 64 bits"); +# define _GLIBCXX_CHRONO_INT64_T long long +#endif + + /// nanoseconds + using nanoseconds = duration<_GLIBCXX_CHRONO_INT64_T, nano>; + + /// microseconds + using microseconds = duration<_GLIBCXX_CHRONO_INT64_T, micro>; + + /// milliseconds + using milliseconds = duration<_GLIBCXX_CHRONO_INT64_T, milli>; + + /// seconds + using seconds = duration<_GLIBCXX_CHRONO_INT64_T>; + + /// minutes + using minutes = duration<_GLIBCXX_CHRONO_INT64_T, ratio< 60>>; + + /// hours + using hours = duration<_GLIBCXX_CHRONO_INT64_T, ratio<3600>>; + +#if __cplusplus > 201703L + /// days + using days = duration<_GLIBCXX_CHRONO_INT64_T, ratio<86400>>; + + /// weeks + using weeks = duration<_GLIBCXX_CHRONO_INT64_T, ratio<604800>>; + + /// years + using years = duration<_GLIBCXX_CHRONO_INT64_T, ratio<31556952>>; + + /// months + using months = duration<_GLIBCXX_CHRONO_INT64_T, ratio<2629746>>; +#endif // C++20 + +#undef _GLIBCXX_CHRONO_INT64_T + + /// time_point + template + struct time_point + { + static_assert(__is_duration<_Dur>::value, + "duration must be a specialization of std::chrono::duration"); + + typedef _Clock clock; + typedef _Dur duration; + typedef typename duration::rep rep; + typedef typename duration::period period; + + constexpr time_point() : __d(duration::zero()) + { } + + constexpr explicit time_point(const duration& __dur) + : __d(__dur) + { } + + // conversions + template>> + constexpr time_point(const time_point& __t) + : __d(__t.time_since_epoch()) + { } + + // observer + constexpr duration + time_since_epoch() const + { return __d; } + + // arithmetic + _GLIBCXX17_CONSTEXPR time_point& + operator+=(const duration& __dur) + { + __d += __dur; + return *this; + } + + _GLIBCXX17_CONSTEXPR time_point& + operator-=(const duration& __dur) + { + __d -= __dur; + return *this; + } + + // special values + static constexpr time_point + min() noexcept + { return time_point(duration::min()); } + + static constexpr time_point + max() noexcept + { return time_point(duration::max()); } + + private: + duration __d; + }; + + /// time_point_cast + template + constexpr typename enable_if<__is_duration<_ToDur>::value, + time_point<_Clock, _ToDur>>::type + time_point_cast(const time_point<_Clock, _Dur>& __t) + { + typedef time_point<_Clock, _ToDur> __time_point; + return __time_point(duration_cast<_ToDur>(__t.time_since_epoch())); + } + +#if __cplusplus > 201402L + template + constexpr + enable_if_t<__is_duration<_ToDur>::value, time_point<_Clock, _ToDur>> + floor(const time_point<_Clock, _Dur>& __tp) + { + return time_point<_Clock, _ToDur>{ + chrono::floor<_ToDur>(__tp.time_since_epoch())}; + } + + template + constexpr + enable_if_t<__is_duration<_ToDur>::value, time_point<_Clock, _ToDur>> + ceil(const time_point<_Clock, _Dur>& __tp) + { + return time_point<_Clock, _ToDur>{ + chrono::ceil<_ToDur>(__tp.time_since_epoch())}; + } + + template + constexpr enable_if_t< + __and_<__is_duration<_ToDur>, + __not_>>::value, + time_point<_Clock, _ToDur>> + round(const time_point<_Clock, _Dur>& __tp) + { + return time_point<_Clock, _ToDur>{ + chrono::round<_ToDur>(__tp.time_since_epoch())}; + } +#endif // C++17 + + /// @relates time_point @{ + + /// Adjust a time point forwards by the given duration. + template + constexpr time_point<_Clock, + typename common_type<_Dur1, duration<_Rep2, _Period2>>::type> + operator+(const time_point<_Clock, _Dur1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<_Dur1,__dur2>::type __ct; + typedef time_point<_Clock, __ct> __time_point; + return __time_point(__lhs.time_since_epoch() + __rhs); + } + + /// Adjust a time point forwards by the given duration. + template + constexpr time_point<_Clock, + typename common_type, _Dur2>::type> + operator+(const duration<_Rep1, _Period1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { + typedef duration<_Rep1, _Period1> __dur1; + typedef typename common_type<__dur1,_Dur2>::type __ct; + typedef time_point<_Clock, __ct> __time_point; + return __time_point(__rhs.time_since_epoch() + __lhs); + } + + /// Adjust a time point backwards by the given duration. + template + constexpr time_point<_Clock, + typename common_type<_Dur1, duration<_Rep2, _Period2>>::type> + operator-(const time_point<_Clock, _Dur1>& __lhs, + const duration<_Rep2, _Period2>& __rhs) + { + typedef duration<_Rep2, _Period2> __dur2; + typedef typename common_type<_Dur1,__dur2>::type __ct; + typedef time_point<_Clock, __ct> __time_point; + return __time_point(__lhs.time_since_epoch() -__rhs); + } + + /// @} + + /// @relates time_point @{ + + /// The difference between two time points (as a duration) + template + constexpr typename common_type<_Dur1, _Dur2>::type + operator-(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() - __rhs.time_since_epoch(); } + + template + constexpr bool + operator==(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() == __rhs.time_since_epoch(); } + +#if __cpp_lib_three_way_comparison + template _Dur2> + constexpr auto + operator<=>(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() <=> __rhs.time_since_epoch(); } +#else + template + constexpr bool + operator!=(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return !(__lhs == __rhs); } +#endif + + template + constexpr bool + operator<(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __lhs.time_since_epoch() < __rhs.time_since_epoch(); } + + template + constexpr bool + operator<=(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return !(__rhs < __lhs); } + + template + constexpr bool + operator>(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return __rhs < __lhs; } + + template + constexpr bool + operator>=(const time_point<_Clock, _Dur1>& __lhs, + const time_point<_Clock, _Dur2>& __rhs) + { return !(__lhs < __rhs); } + + // @} + // @} + } // namespace chrono + +#if __cplusplus > 201103L + +#define __cpp_lib_chrono_udls 201304 + + inline namespace literals + { + /** ISO C++ 2014 namespace for suffixes for duration literals. + * + * These suffixes can be used to create `chrono::duration` values with + * tick periods of hours, minutes, seconds, milliseconds, microseconds + * or nanoseconds. For example, `std::chrono::seconds(5)` can be written + * as `5s` after making the suffix visible in the current scope. + * The suffixes can be made visible by a using-directive or + * using-declaration such as: + * - `using namespace std::chrono_literals;` + * - `using namespace std::literals;` + * - `using namespace std::chrono;` + * - `using namespace std;` + * - `using std::chrono_literals::operator""s;` + * + * The result of these suffixes on an integer literal is one of the + * standard typedefs such as `std::chrono::hours`. + * The result on a floating-point literal is a duration type with the + * specified tick period and an unspecified floating-point representation, + * for example `1.5e2ms` might be equivalent to + * `chrono::duration(1.5e2)`. + * + * @ingroup chrono + */ + inline namespace chrono_literals + { +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wliteral-suffix" + /// @cond undocumented + template + constexpr _Dur __check_overflow() + { + using _Val = __parse_int::_Parse_int<_Digits...>; + constexpr typename _Dur::rep __repval = _Val::value; + static_assert(__repval >= 0 && __repval == _Val::value, + "literal value cannot be represented by duration type"); + return _Dur(__repval); + } + /// @endcond + + /// Literal suffix for durations representing non-integer hours + constexpr chrono::duration> + operator""h(long double __hours) + { return chrono::duration>{__hours}; } + + /// Literal suffix for durations of type `std::chrono::hours` + template + constexpr chrono::hours + operator""h() + { return __check_overflow(); } + + /// Literal suffix for durations representing non-integer minutes + constexpr chrono::duration> + operator""min(long double __mins) + { return chrono::duration>{__mins}; } + + /// Literal suffix for durations of type `std::chrono::minutes` + template + constexpr chrono::minutes + operator""min() + { return __check_overflow(); } + + /// Literal suffix for durations representing non-integer seconds + constexpr chrono::duration + operator""s(long double __secs) + { return chrono::duration{__secs}; } + + /// Literal suffix for durations of type `std::chrono::seconds` + template + constexpr chrono::seconds + operator""s() + { return __check_overflow(); } + + /// Literal suffix for durations representing non-integer milliseconds + constexpr chrono::duration + operator""ms(long double __msecs) + { return chrono::duration{__msecs}; } + + /// Literal suffix for durations of type `std::chrono::milliseconds` + template + constexpr chrono::milliseconds + operator""ms() + { return __check_overflow(); } + + /// Literal suffix for durations representing non-integer microseconds + constexpr chrono::duration + operator""us(long double __usecs) + { return chrono::duration{__usecs}; } + + /// Literal suffix for durations of type `std::chrono::microseconds` + template + constexpr chrono::microseconds + operator""us() + { return __check_overflow(); } + + /// Literal suffix for durations representing non-integer nanoseconds + constexpr chrono::duration + operator""ns(long double __nsecs) + { return chrono::duration{__nsecs}; } + + /// Literal suffix for durations of type `std::chrono::nanoseconds` + template + constexpr chrono::nanoseconds + operator""ns() + { return __check_overflow(); } + +#pragma GCC diagnostic pop + } // inline namespace chrono_literals + } // inline namespace literals + + namespace chrono + { + using namespace literals::chrono_literals; + } // namespace chrono + +#endif // C++14 + + namespace chrono + { + class high_resolution_clock + { + public: + // The high_resolution_clock counter is steady. Each subsequent call + // of std::chrono::high_resolution_clock::now() returns a later time + // than any previous call. + static constexpr bool is_steady = true; + + // Defines the accuracy of the (hardware) high resolution clock. + using duration = chrono::microseconds; + using rep = duration::rep; + using period = duration::period; + using time_point = chrono::time_point; + + static auto to_time_t(const time_point& t) -> std::time_t + { + return static_cast(duration_cast(t.time_since_epoch()).count()); + } + + static auto from_time_t(std::time_t t) -> time_point + { + using local_from_type = chrono::time_point; + + return time_point_cast + ( + static_cast(chrono::seconds(t)) + ); + } + + // !!! PLATFORM AND OS SPECIFIC IMPLEMENTATION !!! + static auto now() noexcept -> time_point; + }; + + #if !defined(MODM_CHRONO_STEADY_CLOCK) + #define MODM_CHRONO_STEADY_CLOCK steady_clock + #endif + + // use high_resolution_clock as steady_clock + using MODM_CHRONO_STEADY_CLOCK = high_resolution_clock; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#endif //_GLIBCXX_CHRONO diff --git a/resources/sources/avr-libstdcpp/include/cinttypes b/resources/sources/avr-libstdcpp/include/cinttypes new file mode 100644 index 000000000..252ee6926 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cinttypes @@ -0,0 +1,55 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cinttypes + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_CINTTYPES +#define _GLIBCXX_CINTTYPES 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +// For 27.9.2/3 (see C99, Note 184) +#if _GLIBCXX_HAVE_INTTYPES_H +# ifndef __STDC_FORMAT_MACROS +# define _UNDEF__STDC_FORMAT_MACROS +# define __STDC_FORMAT_MACROS +# endif +# include +# ifdef _UNDEF__STDC_FORMAT_MACROS +# undef __STDC_FORMAT_MACROS +# undef _UNDEF__STDC_FORMAT_MACROS +# endif +#endif + +#endif // C++11 + +#endif // _GLIBCXX_CINTTYPES diff --git a/resources/sources/avr-libstdcpp/include/ciso646 b/resources/sources/avr-libstdcpp/include/ciso646 new file mode 100644 index 000000000..05c29e9fb --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ciso646 @@ -0,0 +1,38 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ciso646 + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c iso646.h, + * which is empty in C++. + */ +#ifndef _GLIBCXX_CISO646 +#define _GLIBCXX_CISO646 + +#pragma GCC system_header + +#include +#endif diff --git a/resources/sources/avr-libstdcpp/include/climits b/resources/sources/avr-libstdcpp/include/climits new file mode 100644 index 000000000..09e8fcba2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/climits @@ -0,0 +1,59 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/climits + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c limits.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 18.2.2 Implementation properties: C library +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CLIMITS +#define _GLIBCXX_CLIMITS 1 + +#ifndef LLONG_MIN +#define LLONG_MIN (-__LONG_LONG_MAX__ - 1) +#endif + +#ifndef LLONG_MAX +#define LLONG_MAX __LONG_LONG_MAX__ +#endif + +#ifndef ULLONG_MAX +#define ULLONG_MAX (__LONG_LONG_MAX__ * 2ULL + 1) +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cmath b/resources/sources/avr-libstdcpp/include/cmath new file mode 100644 index 000000000..2232ef22b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cmath @@ -0,0 +1,1924 @@ +// -*- C++ -*- C forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cmath + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c math.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 26.5 C library +// + +#pragma GCC system_header + +#include +#include +#include +#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS +#include_next +#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS +#include + +#ifndef _GLIBCXX_CMATH +#define _GLIBCXX_CMATH 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef div +#undef acos +#undef asin +#undef atan +#undef atan2 +#undef ceil +#undef cos +#undef cosh +#undef exp +#undef fabs +#undef floor +#undef fmod +#undef frexp +#undef ldexp +#undef log +#undef log10 +#undef modf +#undef pow +#undef sin +#undef sinh +#undef sqrt +#undef tan +#undef tanh + +// Fix float math functions defined as macros in avr libc +#ifdef __AVR__ + +#undef cosf +#undef sinf +#undef tanf +#undef fabsf +#undef fmodf +#undef cbrtf +#undef hypotf +#undef squaref +#undef floorf +#undef ceilf +#undef frexpf +#undef ldexpf +#undef expf +#undef coshf +#undef sinhf +#undef tanhf +#undef acosf +#undef asinf +#undef atanf +#undef atan2f +#undef logf +#undef log10f +#undef powf +#undef isnanf +#undef isinff +#undef isfinitef +#undef copysignf +#undef signbitf +#undef fdimf +#undef fmaf +#undef fmaxf +#undef fminf +#undef truncf +#undef roundf +#undef lroundf +#undef lrintf + +extern "C" +{ + float cosf(float x); + float sinf(float x); + float tanf(float x); + float fabsf(float x); + float fmodf(float x, float y); + float cbrtf(float x); + float hypotf(float x, float y); + float squaref(float x); + float floorf(float x); + float ceilf(float x); + float frexpf(float value, int* exp); + float ldexpf(float x, int exp); + float expf(float x); + float coshf(float x); + float sinhf(float x); + float tanhf(float x); + float acosf(float x); + float asinf(float x); + float atanf(float x); + float atan2f(float y, float x); + float logf(float x); + float log10f(float x); + float powf(float x, float y); + int isnanf(float x); + int isinff(float x); + int isfinitef(float x); + float copysignf(float x, float y); + int signbitf(float x); + float fdimf(float x, float y); + float fmaf(float x, float y, float z); + float fmaxf(float x, float y); + float fminf(float x, float y); + float truncf(float x); + float roundf(float x); + long lroundf(float x); + long lrintf(float x); +} // extern "C" +#endif // __AVR__ + +extern "C++" +{ +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using ::acos; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + acos(float __x) + { return __builtin_acosf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + acos(long double __x) + { return __builtin_acosl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + acos(_Tp __x) + { return __builtin_acos(__x); } + + using ::asin; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + asin(float __x) + { return __builtin_asinf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + asin(long double __x) + { return __builtin_asinl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + asin(_Tp __x) + { return __builtin_asin(__x); } + + using ::atan; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + atan(float __x) + { return __builtin_atanf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + atan(long double __x) + { return __builtin_atanl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + atan(_Tp __x) + { return __builtin_atan(__x); } + + using ::atan2; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + atan2(float __y, float __x) + { return __builtin_atan2f(__y, __x); } + + inline _GLIBCXX_CONSTEXPR long double + atan2(long double __y, long double __x) + { return __builtin_atan2l(__y, __x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + atan2(_Tp __y, _Up __x) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return atan2(__type(__y), __type(__x)); + } + + using ::ceil; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + ceil(float __x) + { return __builtin_ceilf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + ceil(long double __x) + { return __builtin_ceill(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + ceil(_Tp __x) + { return __builtin_ceil(__x); } + + using ::cos; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + cos(float __x) + { return __builtin_cosf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + cos(long double __x) + { return __builtin_cosl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + cos(_Tp __x) + { return __builtin_cos(__x); } + + using ::cosh; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + cosh(float __x) + { return __builtin_coshf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + cosh(long double __x) + { return __builtin_coshl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + cosh(_Tp __x) + { return __builtin_cosh(__x); } + + using ::exp; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + exp(float __x) + { return __builtin_expf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + exp(long double __x) + { return __builtin_expl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + exp(_Tp __x) + { return __builtin_exp(__x); } + + using ::fabs; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + fabs(float __x) + { return __builtin_fabsf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + fabs(long double __x) + { return __builtin_fabsl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + fabs(_Tp __x) + { return __builtin_fabs(__x); } + + using ::floor; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + floor(float __x) + { return __builtin_floorf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + floor(long double __x) + { return __builtin_floorl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + floor(_Tp __x) + { return __builtin_floor(__x); } + + using ::fmod; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + fmod(float __x, float __y) + { return __builtin_fmodf(__x, __y); } + + inline _GLIBCXX_CONSTEXPR long double + fmod(long double __x, long double __y) + { return __builtin_fmodl(__x, __y); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + fmod(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return fmod(__type(__x), __type(__y)); + } + + using ::frexp; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline float + frexp(float __x, int* __exp) + { return __builtin_frexpf(__x, __exp); } + + inline long double + frexp(long double __x, int* __exp) + { return __builtin_frexpl(__x, __exp); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + frexp(_Tp __x, int* __exp) + { return __builtin_frexp(__x, __exp); } + + using ::ldexp; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + ldexp(float __x, int __exp) + { return __builtin_ldexpf(__x, __exp); } + + inline _GLIBCXX_CONSTEXPR long double + ldexp(long double __x, int __exp) + { return __builtin_ldexpl(__x, __exp); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + ldexp(_Tp __x, int __exp) + { return __builtin_ldexp(__x, __exp); } + + using ::log; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + log(float __x) + { return __builtin_logf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + log(long double __x) + { return __builtin_logl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + log(_Tp __x) + { return __builtin_log(__x); } + + using ::log10; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + log10(float __x) + { return __builtin_log10f(__x); } + + inline _GLIBCXX_CONSTEXPR long double + log10(long double __x) + { return __builtin_log10l(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + log10(_Tp __x) + { return __builtin_log10(__x); } + + using ::modf; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline float + modf(float __x, float* __iptr) + { return __builtin_modff(__x, __iptr); } + + inline long double + modf(long double __x, long double* __iptr) + { return __builtin_modfl(__x, __iptr); } +#endif + + using ::pow; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + pow(float __x, float __y) + { return __builtin_powf(__x, __y); } + + inline _GLIBCXX_CONSTEXPR long double + pow(long double __x, long double __y) + { return __builtin_powl(__x, __y); } + +#if __cplusplus < 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 550. What should the return type of pow(float,int) be? + inline double + pow(double __x, int __i) + { return __builtin_powi(__x, __i); } + + inline float + pow(float __x, int __n) + { return __builtin_powif(__x, __n); } + + inline long double + pow(long double __x, int __n) + { return __builtin_powil(__x, __n); } +#endif +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + pow(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return pow(__type(__x), __type(__y)); + } + + using ::sin; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + sin(float __x) + { return __builtin_sinf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + sin(long double __x) + { return __builtin_sinl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + sin(_Tp __x) + { return __builtin_sin(__x); } + + using ::sinh; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + sinh(float __x) + { return __builtin_sinhf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + sinh(long double __x) + { return __builtin_sinhl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + sinh(_Tp __x) + { return __builtin_sinh(__x); } + + using ::sqrt; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + sqrt(float __x) + { return __builtin_sqrtf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + sqrt(long double __x) + { return __builtin_sqrtl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + sqrt(_Tp __x) + { return __builtin_sqrt(__x); } + + using ::tan; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + tan(float __x) + { return __builtin_tanf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + tan(long double __x) + { return __builtin_tanl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + tan(_Tp __x) + { return __builtin_tan(__x); } + + using ::tanh; + +#ifndef __CORRECT_ISO_CPP_MATH_H_PROTO + inline _GLIBCXX_CONSTEXPR float + tanh(float __x) + { return __builtin_tanhf(__x); } + + inline _GLIBCXX_CONSTEXPR long double + tanh(long double __x) + { return __builtin_tanhl(__x); } +#endif + + template + inline _GLIBCXX_CONSTEXPR + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + tanh(_Tp __x) + { return __builtin_tanh(__x); } + +#if _GLIBCXX_USE_C99_MATH +#if !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC + +// These are possible macros imported from C99-land. +#undef fpclassify +#undef isfinite +#undef isinf +#undef isnan +#undef isnormal +#undef signbit +#undef isgreater +#undef isgreaterequal +#undef isless +#undef islessequal +#undef islessgreater +#undef isunordered + +#if !defined(FP_NAN) && !defined(FP_INFINITE) && !defined(FP_ZERO) \ + && !defined(FP_SUBNORMAL) && !defined(FP_NORMAL) +#define FP_NAN 0 +#define FP_INFINITE 1 +#define FP_ZERO 2 +#define FP_SUBNORMAL 3 +#define FP_NORMAL 4 +#elif !defined(FP_NAN) || !defined(FP_INFINITE) || !defined(FP_ZERO) \ + || !defined(FP_SUBNORMAL) || !defined(FP_NORMAL) +#error "Some floating-point number classification macros are missing." +#error "Either define all of them or define none of them so that can do it." +#endif + +#if __cplusplus >= 201103L + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr int + fpclassify(float __x) + { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, + FP_SUBNORMAL, FP_ZERO, __x); } + + constexpr int + fpclassify(double __x) + { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, + FP_SUBNORMAL, FP_ZERO, __x); } + + constexpr int + fpclassify(long double __x) + { return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, + FP_SUBNORMAL, FP_ZERO, __x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + int>::__type + fpclassify(_Tp __x) + { return __x != 0 ? FP_NORMAL : FP_ZERO; } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isfinite(float __x) + { return __builtin_isfinite(__x); } + + constexpr bool + isfinite(double __x) + { return __builtin_isfinite(__x); } + + constexpr bool + isfinite(long double __x) + { return __builtin_isfinite(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + bool>::__type + isfinite(_Tp __x) + { return true; } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isinf(float __x) + { return __builtin_isinf(__x); } + +#if _GLIBCXX_HAVE_OBSOLETE_ISINF \ + && !_GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC + using ::isinf; +#else + constexpr bool + isinf(double __x) + { return __builtin_isinf(__x); } +#endif + + constexpr bool + isinf(long double __x) + { return __builtin_isinf(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + bool>::__type + isinf(_Tp __x) + { return false; } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isnan(float __x) + { return __builtin_isnan(__x); } + +#if _GLIBCXX_HAVE_OBSOLETE_ISNAN \ + && !_GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC + using ::isnan; +#else + constexpr bool + isnan(double __x) + { return __builtin_isnan(__x); } +#endif + + constexpr bool + isnan(long double __x) + { return __builtin_isnan(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + bool>::__type + isnan(_Tp __x) + { return false; } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isnormal(float __x) + { return __builtin_isnormal(__x); } + + constexpr bool + isnormal(double __x) + { return __builtin_isnormal(__x); } + + constexpr bool + isnormal(long double __x) + { return __builtin_isnormal(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + bool>::__type + isnormal(_Tp __x) + { return __x != 0 ? true : false; } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + // Note: middle-end/36757 is fixed, __builtin_signbit is type-generic. + constexpr bool + signbit(float __x) + { return __builtin_signbit(__x); } + + constexpr bool + signbit(double __x) + { return __builtin_signbit(__x); } + + constexpr bool + signbit(long double __x) + { return __builtin_signbit(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + bool>::__type + signbit(_Tp __x) + { return __x < 0 ? true : false; } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isgreater(float __x, float __y) + { return __builtin_isgreater(__x, __y); } + + constexpr bool + isgreater(double __x, double __y) + { return __builtin_isgreater(__x, __y); } + + constexpr bool + isgreater(long double __x, long double __y) + { return __builtin_isgreater(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename + __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value + && __is_arithmetic<_Up>::__value), bool>::__type + isgreater(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return __builtin_isgreater(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isgreaterequal(float __x, float __y) + { return __builtin_isgreaterequal(__x, __y); } + + constexpr bool + isgreaterequal(double __x, double __y) + { return __builtin_isgreaterequal(__x, __y); } + + constexpr bool + isgreaterequal(long double __x, long double __y) + { return __builtin_isgreaterequal(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename + __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value + && __is_arithmetic<_Up>::__value), bool>::__type + isgreaterequal(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return __builtin_isgreaterequal(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isless(float __x, float __y) + { return __builtin_isless(__x, __y); } + + constexpr bool + isless(double __x, double __y) + { return __builtin_isless(__x, __y); } + + constexpr bool + isless(long double __x, long double __y) + { return __builtin_isless(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename + __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value + && __is_arithmetic<_Up>::__value), bool>::__type + isless(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return __builtin_isless(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + islessequal(float __x, float __y) + { return __builtin_islessequal(__x, __y); } + + constexpr bool + islessequal(double __x, double __y) + { return __builtin_islessequal(__x, __y); } + + constexpr bool + islessequal(long double __x, long double __y) + { return __builtin_islessequal(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename + __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value + && __is_arithmetic<_Up>::__value), bool>::__type + islessequal(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return __builtin_islessequal(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + islessgreater(float __x, float __y) + { return __builtin_islessgreater(__x, __y); } + + constexpr bool + islessgreater(double __x, double __y) + { return __builtin_islessgreater(__x, __y); } + + constexpr bool + islessgreater(long double __x, long double __y) + { return __builtin_islessgreater(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename + __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value + && __is_arithmetic<_Up>::__value), bool>::__type + islessgreater(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return __builtin_islessgreater(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr bool + isunordered(float __x, float __y) + { return __builtin_isunordered(__x, __y); } + + constexpr bool + isunordered(double __x, double __y) + { return __builtin_isunordered(__x, __y); } + + constexpr bool + isunordered(long double __x, long double __y) + { return __builtin_isunordered(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename + __gnu_cxx::__enable_if<(__is_arithmetic<_Tp>::__value + && __is_arithmetic<_Up>::__value), bool>::__type + isunordered(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return __builtin_isunordered(__type(__x), __type(__y)); + } +#endif + +#else + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + fpclassify(_Tp __f) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, + FP_SUBNORMAL, FP_ZERO, __type(__f)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isfinite(_Tp __f) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isfinite(__type(__f)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isinf(_Tp __f) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isinf(__type(__f)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isnan(_Tp __f) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isnan(__type(__f)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isnormal(_Tp __f) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isnormal(__type(__f)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + signbit(_Tp __f) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_signbit(__type(__f)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isgreater(_Tp __f1, _Tp __f2) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isgreater(__type(__f1), __type(__f2)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isgreaterequal(_Tp __f1, _Tp __f2) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isgreaterequal(__type(__f1), __type(__f2)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isless(_Tp __f1, _Tp __f2) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isless(__type(__f1), __type(__f2)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + islessequal(_Tp __f1, _Tp __f2) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_islessequal(__type(__f1), __type(__f2)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + islessgreater(_Tp __f1, _Tp __f2) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_islessgreater(__type(__f1), __type(__f2)); + } + + template + inline typename __gnu_cxx::__enable_if<__is_arithmetic<_Tp>::__value, + int>::__type + isunordered(_Tp __f1, _Tp __f2) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __builtin_isunordered(__type(__f1), __type(__f2)); + } + +#endif // C++11 +#endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */ +#endif /* _GLIBCXX_USE_C99_MATH */ + +#if __cplusplus >= 201103L + +#ifdef _GLIBCXX_USE_C99_MATH_TR1 + +#undef acosh +#undef acoshf +#undef acoshl +#undef asinh +#undef asinhf +#undef asinhl +#undef atanh +#undef atanhf +#undef atanhl +#undef cbrt +#undef cbrtf +#undef cbrtl +#undef copysign +#undef copysignf +#undef copysignl +#undef erf +#undef erff +#undef erfl +#undef erfc +#undef erfcf +#undef erfcl +#undef exp2 +#undef exp2f +#undef exp2l +#undef expm1 +#undef expm1f +#undef expm1l +#undef fdim +#undef fdimf +#undef fdiml +#undef fma +#undef fmaf +#undef fmal +#undef fmax +#undef fmaxf +#undef fmaxl +#undef fmin +#undef fminf +#undef fminl +#undef hypot +#undef hypotf +#undef hypotl +#undef ilogb +#undef ilogbf +#undef ilogbl +#undef lgamma +#undef lgammaf +#undef lgammal +#ifndef _GLIBCXX_NO_C99_ROUNDING_FUNCS +#undef llrint +#undef llrintf +#undef llrintl +#undef llround +#undef llroundf +#undef llroundl +#endif +#undef log1p +#undef log1pf +#undef log1pl +#undef log2 +#undef log2f +#undef log2l +#undef logb +#undef logbf +#undef logbl +#undef lrint +#undef lrintf +#undef lrintl +#undef lround +#undef lroundf +#undef lroundl +#undef nan +#undef nanf +#undef nanl +#undef nearbyint +#undef nearbyintf +#undef nearbyintl +#undef nextafter +#undef nextafterf +#undef nextafterl +#undef nexttoward +#undef nexttowardf +#undef nexttowardl +#undef remainder +#undef remainderf +#undef remainderl +#undef remquo +#undef remquof +#undef remquol +#undef rint +#undef rintf +#undef rintl +#undef round +#undef roundf +#undef roundl +#undef scalbln +#undef scalblnf +#undef scalblnl +#undef scalbn +#undef scalbnf +#undef scalbnl +#undef tgamma +#undef tgammaf +#undef tgammal +#undef trunc +#undef truncf +#undef truncl + + // types + using double_t = double; + using float_t = float; + + // functions + + using ::cbrt; + inline float cbrtf(float __x) { return ::cbrt(__x); } + + using ::copysign; + inline float copysignf(float __x, float __y) { return ::copysign(__x, __y); } + + using ::fdim; + inline float fdimf(float __x, float __y) { return ::fdim(__x, __y); } + + using ::fma; + inline float fmaf(float __x, float __y, float __z) { return ::fma(__x, __y, __z); } + + using ::fmax; + inline float fmaxf(float __x, float __y) { return ::fmax(__x, __y); } + + using ::fmin; + inline float fminf(float __x, float __y) { return ::fmin(__x, __y); } + + using ::hypot; + inline float hypotf(float __x, float __y) { return ::hypot(__x, __y); } + +#ifndef _GLIBCXX_NO_C99_ROUNDING_FUNCS + using ::llrint; + using ::llrintf; + using ::llrintl; + + using ::llround; + using ::llroundf; + using ::llroundl; +#endif + + using ::lrint; + inline float lrintf(float __x) { return ::lrint(__x); } + + using ::lround; + inline float lroundf(float __x) { return ::lround(__x); } + + using ::round; + inline float roundf(float __x) { return ::round(__x); } + + using ::trunc; + inline float truncf(float __x) { return ::trunc(__x); } + + /// Additional overloads. +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + acosh(float __x) + { return __builtin_acoshf(__x); } + + constexpr long double + acosh(long double __x) + { return __builtin_acoshl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + acosh(_Tp __x) + { return __builtin_acosh(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + asinh(float __x) + { return __builtin_asinhf(__x); } + + constexpr long double + asinh(long double __x) + { return __builtin_asinhl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + asinh(_Tp __x) + { return __builtin_asinh(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + atanh(float __x) + { return __builtin_atanhf(__x); } + + constexpr long double + atanh(long double __x) + { return __builtin_atanhl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + atanh(_Tp __x) + { return __builtin_atanh(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + cbrt(float __x) + { return __builtin_cbrtf(__x); } + + constexpr long double + cbrt(long double __x) + { return __builtin_cbrtl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + cbrt(_Tp __x) + { return __builtin_cbrt(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + copysign(float __x, float __y) + { return __builtin_copysignf(__x, __y); } + + constexpr long double + copysign(long double __x, long double __y) + { return __builtin_copysignl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + copysign(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return copysign(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + erf(float __x) + { return __builtin_erff(__x); } + + constexpr long double + erf(long double __x) + { return __builtin_erfl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + erf(_Tp __x) + { return __builtin_erf(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + erfc(float __x) + { return __builtin_erfcf(__x); } + + constexpr long double + erfc(long double __x) + { return __builtin_erfcl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + erfc(_Tp __x) + { return __builtin_erfc(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + exp2(float __x) + { return __builtin_exp2f(__x); } + + constexpr long double + exp2(long double __x) + { return __builtin_exp2l(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + exp2(_Tp __x) + { return __builtin_exp2(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + expm1(float __x) + { return __builtin_expm1f(__x); } + + constexpr long double + expm1(long double __x) + { return __builtin_expm1l(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + expm1(_Tp __x) + { return __builtin_expm1(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + fdim(float __x, float __y) + { return __builtin_fdimf(__x, __y); } + + constexpr long double + fdim(long double __x, long double __y) + { return __builtin_fdiml(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + fdim(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return fdim(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + fma(float __x, float __y, float __z) + { return __builtin_fmaf(__x, __y, __z); } + + constexpr long double + fma(long double __x, long double __y, long double __z) + { return __builtin_fmal(__x, __y, __z); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type + fma(_Tp __x, _Up __y, _Vp __z) + { + typedef typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type __type; + return fma(__type(__x), __type(__y), __type(__z)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + fmax(float __x, float __y) + { return __builtin_fmaxf(__x, __y); } + + constexpr long double + fmax(long double __x, long double __y) + { return __builtin_fmaxl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + fmax(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return fmax(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + fmin(float __x, float __y) + { return __builtin_fminf(__x, __y); } + + constexpr long double + fmin(long double __x, long double __y) + { return __builtin_fminl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + fmin(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return fmin(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + hypot(float __x, float __y) + { return __builtin_hypotf(__x, __y); } + + constexpr long double + hypot(long double __x, long double __y) + { return __builtin_hypotl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + hypot(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return hypot(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr int + ilogb(float __x) + { return __builtin_ilogbf(__x); } + + constexpr int + ilogb(long double __x) + { return __builtin_ilogbl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr + typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + int>::__type + ilogb(_Tp __x) + { return __builtin_ilogb(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + lgamma(float __x) + { return __builtin_lgammaf(__x); } + + constexpr long double + lgamma(long double __x) + { return __builtin_lgammal(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + lgamma(_Tp __x) + { return __builtin_lgamma(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr long long + llrint(float __x) + { return __builtin_llrintf(__x); } + + constexpr long long + llrint(long double __x) + { return __builtin_llrintl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + long long>::__type + llrint(_Tp __x) + { return __builtin_llrint(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr long long + llround(float __x) + { return __builtin_llroundf(__x); } + + constexpr long long + llround(long double __x) + { return __builtin_llroundl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + long long>::__type + llround(_Tp __x) + { return __builtin_llround(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + log1p(float __x) + { return __builtin_log1pf(__x); } + + constexpr long double + log1p(long double __x) + { return __builtin_log1pl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + log1p(_Tp __x) + { return __builtin_log1p(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + // DR 568. + constexpr float + log2(float __x) + { return __builtin_log2f(__x); } + + constexpr long double + log2(long double __x) + { return __builtin_log2l(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + log2(_Tp __x) + { return __builtin_log2(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + logb(float __x) + { return __builtin_logbf(__x); } + + constexpr long double + logb(long double __x) + { return __builtin_logbl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + logb(_Tp __x) + { return __builtin_logb(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr long + lrint(float __x) + { return __builtin_lrintf(__x); } + + constexpr long + lrint(long double __x) + { return __builtin_lrintl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + long>::__type + lrint(_Tp __x) + { return __builtin_lrint(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr long + lround(float __x) + { return __builtin_lroundf(__x); } + + constexpr long + lround(long double __x) + { return __builtin_lroundl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + long>::__type + lround(_Tp __x) + { return __builtin_lround(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + nearbyint(float __x) + { return __builtin_nearbyintf(__x); } + + constexpr long double + nearbyint(long double __x) + { return __builtin_nearbyintl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + nearbyint(_Tp __x) + { return __builtin_nearbyint(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + nextafter(float __x, float __y) + { return __builtin_nextafterf(__x, __y); } + + constexpr long double + nextafter(long double __x, long double __y) + { return __builtin_nextafterl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + nextafter(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return nextafter(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + nexttoward(float __x, long double __y) + { return __builtin_nexttowardf(__x, __y); } + + constexpr long double + nexttoward(long double __x, long double __y) + { return __builtin_nexttowardl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + nexttoward(_Tp __x, long double __y) + { return __builtin_nexttoward(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + remainder(float __x, float __y) + { return __builtin_remainderf(__x, __y); } + + constexpr long double + remainder(long double __x, long double __y) + { return __builtin_remainderl(__x, __y); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + remainder(_Tp __x, _Up __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return remainder(__type(__x), __type(__y)); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + inline float + remquo(float __x, float __y, int* __pquo) + { return __builtin_remquof(__x, __y, __pquo); } + + inline long double + remquo(long double __x, long double __y, int* __pquo) + { return __builtin_remquol(__x, __y, __pquo); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + inline typename __gnu_cxx::__promote_2<_Tp, _Up>::__type + remquo(_Tp __x, _Up __y, int* __pquo) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return remquo(__type(__x), __type(__y), __pquo); + } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + rint(float __x) + { return __builtin_rintf(__x); } + + constexpr long double + rint(long double __x) + { return __builtin_rintl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + rint(_Tp __x) + { return __builtin_rint(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + round(float __x) + { return __builtin_roundf(__x); } + + constexpr long double + round(long double __x) + { return __builtin_roundl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + round(_Tp __x) + { return __builtin_round(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + scalbln(float __x, long __ex) + { return __builtin_scalblnf(__x, __ex); } + + constexpr long double + scalbln(long double __x, long __ex) + { return __builtin_scalblnl(__x, __ex); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + scalbln(_Tp __x, long __ex) + { return __builtin_scalbln(__x, __ex); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + scalbn(float __x, int __ex) + { return __builtin_scalbnf(__x, __ex); } + + constexpr long double + scalbn(long double __x, int __ex) + { return __builtin_scalbnl(__x, __ex); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + scalbn(_Tp __x, int __ex) + { return __builtin_scalbn(__x, __ex); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + tgamma(float __x) + { return __builtin_tgammaf(__x); } + + constexpr long double + tgamma(long double __x) + { return __builtin_tgammal(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + tgamma(_Tp __x) + { return __builtin_tgamma(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP + constexpr float + trunc(float __x) + { return __builtin_truncf(__x); } + + constexpr long double + trunc(long double __x) + { return __builtin_truncl(__x); } +#endif + +#ifndef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT + template + constexpr typename __gnu_cxx::__enable_if<__is_integer<_Tp>::__value, + double>::__type + trunc(_Tp __x) + { return __builtin_trunc(__x); } +#endif + +#endif // _GLIBCXX_USE_C99_MATH_TR1 +#endif // C++11 + +#if __cplusplus > 201402L + + // [c.math.hypot3], three-dimensional hypotenuse +#define __cpp_lib_hypot 201603 + + template + inline _Tp + __hypot3(_Tp __x, _Tp __y, _Tp __z) + { + __x = std::abs(__x); + __y = std::abs(__y); + __z = std::abs(__z); + if (_Tp __a = __x < __y ? __y < __z ? __z : __y : __x < __z ? __z : __x) + return __a * std::sqrt((__x / __a) * (__x / __a) + + (__y / __a) * (__y / __a) + + (__z / __a) * (__z / __a)); + else + return {}; + } + + inline float + hypot(float __x, float __y, float __z) + { return std::__hypot3(__x, __y, __z); } + + inline double + hypot(double __x, double __y, double __z) + { return std::__hypot3(__x, __y, __z); } + + inline long double + hypot(long double __x, long double __y, long double __z) + { return std::__hypot3(__x, __y, __z); } + + template + typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type + hypot(_Tp __x, _Up __y, _Vp __z) + { + using __type = typename __gnu_cxx::__promote_3<_Tp, _Up, _Vp>::__type; + return std::__hypot3<__type>(__x, __y, __z); + } +#endif // C++17 + +#if __cplusplus > 201703L + // linear interpolation +# define __cpp_lib_interpolate 201902L + + template + constexpr _Fp + __lerp(_Fp __a, _Fp __b, _Fp __t) noexcept + { + if (__a <= 0 && __b >= 0 || __a >= 0 && __b <= 0) + return __t * __b + (1 - __t) * __a; + + if (__t == 1) + return __b; // exact + + // Exact at __t=0, monotonic except near __t=1, + // bounded, determinate, and consistent: + const _Fp __x = __a + __t * (__b - __a); + return __t > 1 == __b > __a + ? (__b < __x ? __x : __b) + : (__b > __x ? __x : __b); // monotonic near __t=1 + } + + constexpr float + lerp(float __a, float __b, float __t) noexcept + { return std::__lerp(__a, __b, __t); } + + constexpr double + lerp(double __a, double __b, double __t) noexcept + { return std::__lerp(__a, __b, __t); } + + constexpr long double + lerp(long double __a, long double __b, long double __t) noexcept + { return std::__lerp(__a, __b, __t); } +#endif // C++20 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +} // extern "C++" + +#endif diff --git a/resources/sources/avr-libstdcpp/include/compare b/resources/sources/avr-libstdcpp/include/compare new file mode 100644 index 000000000..28dfe843e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/compare @@ -0,0 +1,919 @@ +// -*- C++ -*- operator<=> three-way comparison support. + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of GCC. +// +// GCC is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 3, or (at your option) +// any later version. +// +// GCC is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file compare + * This is a Standard C++ Library header. + */ + +#ifndef _COMPARE +#define _COMPARE + +#pragma GCC system_header + +#if __cplusplus > 201703L && __cpp_impl_three_way_comparison >= 201907L + +#pragma GCC visibility push(default) + +#include + +#if __cpp_lib_concepts +# define __cpp_lib_three_way_comparison 201907L +#endif + +namespace std +{ + // [cmp.categories], comparison category types + + namespace __cmp_cat + { + using type = signed char; + + enum class _Ord : type { equivalent = 0, less = -1, greater = 1 }; + + enum class _Ncmp : type { _Unordered = 2 }; + + struct __unspec + { + constexpr __unspec(__unspec*) noexcept { } + }; + } + + class partial_ordering + { + // less=0xff, equiv=0x00, greater=0x01, unordered=0x02 + __cmp_cat::type _M_value; + + constexpr explicit + partial_ordering(__cmp_cat::_Ord __v) noexcept + : _M_value(__cmp_cat::type(__v)) + { } + + constexpr explicit + partial_ordering(__cmp_cat::_Ncmp __v) noexcept + : _M_value(__cmp_cat::type(__v)) + { } + + friend class weak_ordering; + friend class strong_ordering; + + public: + // valid values + static const partial_ordering less; + static const partial_ordering equivalent; + static const partial_ordering greater; + static const partial_ordering unordered; + + // comparisons + friend constexpr bool + operator==(partial_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value == 0; } + + friend constexpr bool + operator==(partial_ordering, partial_ordering) noexcept = default; + + friend constexpr bool + operator< (partial_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value == -1; } + + friend constexpr bool + operator> (partial_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value == 1; } + + friend constexpr bool + operator<=(partial_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value <= 0; } + + friend constexpr bool + operator>=(partial_ordering __v, __cmp_cat::__unspec) noexcept + { return __cmp_cat::type(__v._M_value & 1) == __v._M_value; } + + friend constexpr bool + operator< (__cmp_cat::__unspec, partial_ordering __v) noexcept + { return __v._M_value == 1; } + + friend constexpr bool + operator> (__cmp_cat::__unspec, partial_ordering __v) noexcept + { return __v._M_value == -1; } + + friend constexpr bool + operator<=(__cmp_cat::__unspec, partial_ordering __v) noexcept + { return __cmp_cat::type(__v._M_value & 1) == __v._M_value; } + + friend constexpr bool + operator>=(__cmp_cat::__unspec, partial_ordering __v) noexcept + { return 0 >= __v._M_value; } + + friend constexpr partial_ordering + operator<=>(partial_ordering __v, __cmp_cat::__unspec) noexcept + { return __v; } + + friend constexpr partial_ordering + operator<=>(__cmp_cat::__unspec, partial_ordering __v) noexcept + { + if (__v._M_value & 1) + return partial_ordering(__cmp_cat::_Ord(-__v._M_value)); + else + return __v; + } + }; + + // valid values' definitions + inline constexpr partial_ordering + partial_ordering::less(__cmp_cat::_Ord::less); + + inline constexpr partial_ordering + partial_ordering::equivalent(__cmp_cat::_Ord::equivalent); + + inline constexpr partial_ordering + partial_ordering::greater(__cmp_cat::_Ord::greater); + + inline constexpr partial_ordering + partial_ordering::unordered(__cmp_cat::_Ncmp::_Unordered); + + class weak_ordering + { + __cmp_cat::type _M_value; + + constexpr explicit + weak_ordering(__cmp_cat::_Ord __v) noexcept : _M_value(__cmp_cat::type(__v)) + { } + + friend class strong_ordering; + + public: + // valid values + static const weak_ordering less; + static const weak_ordering equivalent; + static const weak_ordering greater; + + constexpr operator partial_ordering() const noexcept + { return partial_ordering(__cmp_cat::_Ord(_M_value)); } + + // comparisons + friend constexpr bool + operator==(weak_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value == 0; } + + friend constexpr bool + operator==(weak_ordering, weak_ordering) noexcept = default; + + friend constexpr bool + operator< (weak_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value < 0; } + + friend constexpr bool + operator> (weak_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value > 0; } + + friend constexpr bool + operator<=(weak_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value <= 0; } + + friend constexpr bool + operator>=(weak_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value >= 0; } + + friend constexpr bool + operator< (__cmp_cat::__unspec, weak_ordering __v) noexcept + { return 0 < __v._M_value; } + + friend constexpr bool + operator> (__cmp_cat::__unspec, weak_ordering __v) noexcept + { return 0 > __v._M_value; } + + friend constexpr bool + operator<=(__cmp_cat::__unspec, weak_ordering __v) noexcept + { return 0 <= __v._M_value; } + + friend constexpr bool + operator>=(__cmp_cat::__unspec, weak_ordering __v) noexcept + { return 0 >= __v._M_value; } + + friend constexpr weak_ordering + operator<=>(weak_ordering __v, __cmp_cat::__unspec) noexcept + { return __v; } + + friend constexpr weak_ordering + operator<=>(__cmp_cat::__unspec, weak_ordering __v) noexcept + { return weak_ordering(__cmp_cat::_Ord(-__v._M_value)); } + }; + + // valid values' definitions + inline constexpr weak_ordering + weak_ordering::less(__cmp_cat::_Ord::less); + + inline constexpr weak_ordering + weak_ordering::equivalent(__cmp_cat::_Ord::equivalent); + + inline constexpr weak_ordering + weak_ordering::greater(__cmp_cat::_Ord::greater); + + class strong_ordering + { + __cmp_cat::type _M_value; + + constexpr explicit + strong_ordering(__cmp_cat::_Ord __v) noexcept + : _M_value(__cmp_cat::type(__v)) + { } + + public: + // valid values + static const strong_ordering less; + static const strong_ordering equal; + static const strong_ordering equivalent; + static const strong_ordering greater; + + constexpr operator partial_ordering() const noexcept + { return partial_ordering(__cmp_cat::_Ord(_M_value)); } + + constexpr operator weak_ordering() const noexcept + { return weak_ordering(__cmp_cat::_Ord(_M_value)); } + + // comparisons + friend constexpr bool + operator==(strong_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value == 0; } + + friend constexpr bool + operator==(strong_ordering, strong_ordering) noexcept = default; + + friend constexpr bool + operator< (strong_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value < 0; } + + friend constexpr bool + operator> (strong_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value > 0; } + + friend constexpr bool + operator<=(strong_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value <= 0; } + + friend constexpr bool + operator>=(strong_ordering __v, __cmp_cat::__unspec) noexcept + { return __v._M_value >= 0; } + + friend constexpr bool + operator< (__cmp_cat::__unspec, strong_ordering __v) noexcept + { return 0 < __v._M_value; } + + friend constexpr bool + operator> (__cmp_cat::__unspec, strong_ordering __v) noexcept + { return 0 > __v._M_value; } + + friend constexpr bool + operator<=(__cmp_cat::__unspec, strong_ordering __v) noexcept + { return 0 <= __v._M_value; } + + friend constexpr bool + operator>=(__cmp_cat::__unspec, strong_ordering __v) noexcept + { return 0 >= __v._M_value; } + + friend constexpr strong_ordering + operator<=>(strong_ordering __v, __cmp_cat::__unspec) noexcept + { return __v; } + + friend constexpr strong_ordering + operator<=>(__cmp_cat::__unspec, strong_ordering __v) noexcept + { return strong_ordering(__cmp_cat::_Ord(-__v._M_value)); } + }; + + // valid values' definitions + inline constexpr strong_ordering + strong_ordering::less(__cmp_cat::_Ord::less); + + inline constexpr strong_ordering + strong_ordering::equal(__cmp_cat::_Ord::equivalent); + + inline constexpr strong_ordering + strong_ordering::equivalent(__cmp_cat::_Ord::equivalent); + + inline constexpr strong_ordering + strong_ordering::greater(__cmp_cat::_Ord::greater); + + + // named comparison functions + constexpr bool + is_eq(partial_ordering __cmp) noexcept + { return __cmp == 0; } + + constexpr bool + is_neq(partial_ordering __cmp) noexcept + { return __cmp != 0; } + + constexpr bool + is_lt (partial_ordering __cmp) noexcept + { return __cmp < 0; } + + constexpr bool + is_lteq(partial_ordering __cmp) noexcept + { return __cmp <= 0; } + + constexpr bool + is_gt (partial_ordering __cmp) noexcept + { return __cmp > 0; } + + constexpr bool + is_gteq(partial_ordering __cmp) noexcept + { return __cmp >= 0; } + + namespace __detail + { + template + inline constexpr unsigned __cmp_cat_id = 1; + template<> + inline constexpr unsigned __cmp_cat_id = 2; + template<> + inline constexpr unsigned __cmp_cat_id = 4; + template<> + inline constexpr unsigned __cmp_cat_id = 8; + + template + constexpr auto __common_cmp_cat() + { + constexpr unsigned __cats = (__cmp_cat_id<_Ts> | ...); + // If any Ti is not a comparison category type, U is void. + if constexpr (__cats & 1) + return; + // Otherwise, if at least one Ti is std::partial_ordering, + // U is std::partial_ordering. + else if constexpr (bool(__cats & __cmp_cat_id)) + return partial_ordering::equivalent; + // Otherwise, if at least one Ti is std::weak_ordering, + // U is std::weak_ordering. + else if constexpr (bool(__cats & __cmp_cat_id)) + return weak_ordering::equivalent; + // Otherwise, U is std::strong_ordering. + else + return strong_ordering::equivalent; + } + } // namespace __detail + + // [cmp.common], common comparison category type + template + struct common_comparison_category + { + using type = decltype(__detail::__common_cmp_cat<_Ts...>()); + }; + + // Partial specializations for one and zero argument cases. + + template + struct common_comparison_category<_Tp> + { using type = void; }; + + template<> + struct common_comparison_category + { using type = partial_ordering; }; + + template<> + struct common_comparison_category + { using type = weak_ordering; }; + + template<> + struct common_comparison_category + { using type = strong_ordering; }; + + template<> + struct common_comparison_category<> + { using type = strong_ordering; }; + + template + using common_comparison_category_t + = typename common_comparison_category<_Ts...>::type; + +#if __cpp_lib_concepts + namespace __detail + { + template + concept __compares_as + = same_as, _Cat>; + } // namespace __detail + + // [cmp.concept], concept three_way_comparable + template + concept three_way_comparable + = __detail::__weakly_eq_cmp_with<_Tp, _Tp> + && __detail::__partially_ordered_with<_Tp, _Tp> + && requires(const remove_reference_t<_Tp>& __a, + const remove_reference_t<_Tp>& __b) + { + { __a <=> __b } -> __detail::__compares_as<_Cat>; + }; + + template + concept three_way_comparable_with + = three_way_comparable<_Tp, _Cat> + && three_way_comparable<_Up, _Cat> + && common_reference_with&, + const remove_reference_t<_Up>&> + && three_way_comparable< + common_reference_t&, + const remove_reference_t<_Up>&>, _Cat> + && __detail::__weakly_eq_cmp_with<_Tp, _Up> + && __detail::__partially_ordered_with<_Tp, _Up> + && requires(const remove_reference_t<_Tp>& __t, + const remove_reference_t<_Up>& __u) + { + { __t <=> __u } -> __detail::__compares_as<_Cat>; + { __u <=> __t } -> __detail::__compares_as<_Cat>; + }; + + namespace __detail + { + template + using __cmp3way_res_t + = decltype(std::declval<_Tp>() <=> std::declval<_Up>()); + + // Implementation of std::compare_three_way_result. + // It is undefined for a program to add specializations of + // std::compare_three_way_result, so the std::compare_three_way_result_t + // alias ignores std::compare_three_way_result and uses + // __detail::__cmp3way_res_impl directly instead. + template + struct __cmp3way_res_impl + { }; + + template + requires requires { typename __cmp3way_res_t<__cref<_Tp>, __cref<_Up>>; } + struct __cmp3way_res_impl<_Tp, _Up> + { + using type = __cmp3way_res_t<__cref<_Tp>, __cref<_Up>>; + }; + } // namespace __detail + + /// [cmp.result], result of three-way comparison + template + struct compare_three_way_result + : __detail::__cmp3way_res_impl<_Tp, _Up> + { }; + + /// [cmp.result], result of three-way comparison + template + using compare_three_way_result_t + = typename __detail::__cmp3way_res_impl<_Tp, _Up>::type; + + namespace __detail + { + // BUILTIN-PTR-THREE-WAY(T, U) + template + concept __3way_builtin_ptr_cmp + = requires(_Tp&& __t, _Up&& __u) + { static_cast<_Tp&&>(__t) <=> static_cast<_Up&&>(__u); } + && convertible_to<_Tp, const volatile void*> + && convertible_to<_Up, const volatile void*> + && ! requires(_Tp&& __t, _Up&& __u) + { operator<=>(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); } + && ! requires(_Tp&& __t, _Up&& __u) + { static_cast<_Tp&&>(__t).operator<=>(static_cast<_Up&&>(__u)); }; + } // namespace __detail + + // [cmp.object], typename compare_three_way + struct compare_three_way + { + template + requires three_way_comparable_with<_Tp, _Up> + || __detail::__3way_builtin_ptr_cmp<_Tp, _Up> + constexpr auto + operator()(_Tp&& __t, _Up&& __u) const + noexcept(noexcept(std::declval<_Tp>() <=> std::declval<_Up>())) + { + if constexpr (__detail::__3way_builtin_ptr_cmp<_Tp, _Up>) + { + auto __pt = static_cast(__t); + auto __pu = static_cast(__u); + if (__builtin_is_constant_evaluated()) + return __pt <=> __pu; + auto __it = reinterpret_cast<__UINTPTR_TYPE__>(__pt); + auto __iu = reinterpret_cast<__UINTPTR_TYPE__>(__pu); + return __it <=> __iu; + } + else + return static_cast<_Tp&&>(__t) <=> static_cast<_Up&&>(__u); + } + + using is_transparent = void; + }; + + namespace __cmp_cust + { + template + constexpr weak_ordering + __fp_weak_ordering(_Tp __e, _Tp __f) + { + // Returns an integer with the same sign as the argument, and magnitude + // indicating the classification: zero=1 subnorm=2 norm=3 inf=4 nan=5 + auto __cat = [](_Tp __fp) -> int { + const int __sign = __builtin_signbit(__fp) ? -1 : 1; + if (__builtin_isnormal(__fp)) + return (__fp == 0 ? 1 : 3) * __sign; + if (__builtin_isnan(__fp)) + return 5 * __sign; + if (int __inf = __builtin_isinf_sign(__fp)) + return 4 * __inf; + return 2 * __sign; + }; + + auto __po = __e <=> __f; + if (is_lt(__po)) + return weak_ordering::less; + else if (is_gt(__po)) + return weak_ordering::greater; + else if (__po == partial_ordering::equivalent) + return weak_ordering::equivalent; + else // unordered, at least one argument is NaN + { + // return -1 for negative nan, +1 for positive nan, 0 otherwise. + auto __isnan_sign = [](_Tp __fp) -> int { + return __builtin_isnan(__fp) + ? __builtin_signbit(__fp) ? -1 : 1 + : 0; + }; + auto __ord = __isnan_sign(__e) <=> __isnan_sign(__f); + if (is_eq(__ord)) + return weak_ordering::equivalent; + else if (is_lt(__ord)) + return weak_ordering::less; + else + return weak_ordering::greater; + } + } + + template + concept __adl_strong = requires(_Tp&& __t, _Up&& __u) + { + strong_ordering(strong_order(static_cast<_Tp&&>(__t), + static_cast<_Up&&>(__u))); + }; + + template + concept __adl_weak = requires(_Tp&& __t, _Up&& __u) + { + weak_ordering(weak_order(static_cast<_Tp&&>(__t), + static_cast<_Up&&>(__u))); + }; + + template + concept __adl_partial = requires(_Tp&& __t, _Up&& __u) + { + partial_ordering(partial_order(static_cast<_Tp&&>(__t), + static_cast<_Up&&>(__u))); + }; + + template + concept __cmp3way = requires(_Tp&& __t, _Up&& __u, compare_three_way __c) + { + _Ord(__c(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u))); + }; + + template + concept __strongly_ordered + = __adl_strong<_Tp, _Up> + // FIXME: || floating_point> + || __cmp3way; + + class _Strong_order + { + template + static constexpr bool + _S_noexcept() + { + if constexpr (floating_point>) + return true; + else if constexpr (__adl_strong<_Tp, _Up>) + return noexcept(strong_ordering(strong_order(std::declval<_Tp>(), + std::declval<_Up>()))); + else if constexpr (__cmp3way) + return noexcept(compare_three_way()(std::declval<_Tp>(), + std::declval<_Up>())); + } + + friend class _Weak_order; + friend class _Strong_fallback; + + public: + template + requires __strongly_ordered<_Tp, _Up> + constexpr strong_ordering + operator()(_Tp&& __e, _Up&& __f) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + static_assert(same_as, decay_t<_Up>>); + + /* FIXME: + if constexpr (floating_point>) + return __cmp_cust::__fp_strong_order(__e, __f); + else */ if constexpr (__adl_strong<_Tp, _Up>) + return strong_ordering(strong_order(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f))); + else if constexpr (__cmp3way) + return compare_three_way()(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + } + }; + + template + concept __weakly_ordered + = floating_point> + || __adl_weak<_Tp, _Up> + || __cmp3way + || __strongly_ordered<_Tp, _Up>; + + class _Weak_order + { + template + static constexpr bool + _S_noexcept() + { + if constexpr (floating_point>) + return true; + else if constexpr (__adl_weak<_Tp, _Up>) + return noexcept(weak_ordering(weak_order(std::declval<_Tp>(), + std::declval<_Up>()))); + else if constexpr (__cmp3way) + return noexcept(compare_three_way()(std::declval<_Tp>(), + std::declval<_Up>())); + else if constexpr (__strongly_ordered<_Tp, _Up>) + return _Strong_order::_S_noexcept<_Tp, _Up>(); + } + + friend class _Partial_order; + friend class _Weak_fallback; + + public: + template + requires __weakly_ordered<_Tp, _Up> + constexpr weak_ordering + operator()(_Tp&& __e, _Up&& __f) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + static_assert(same_as, decay_t<_Up>>); + + if constexpr (floating_point>) + return __cmp_cust::__fp_weak_ordering(__e, __f); + else if constexpr (__adl_weak<_Tp, _Up>) + return weak_ordering(weak_order(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f))); + else if constexpr (__cmp3way) + return compare_three_way()(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + else if constexpr (__strongly_ordered<_Tp, _Up>) + return _Strong_order{}(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + } + }; + + template + concept __partially_ordered + = __adl_partial<_Tp, _Up> + || __cmp3way + || __weakly_ordered<_Tp, _Up>; + + class _Partial_order + { + template + static constexpr bool + _S_noexcept() + { + if constexpr (__adl_partial<_Tp, _Up>) + return noexcept(partial_ordering(partial_order(std::declval<_Tp>(), + std::declval<_Up>()))); + else if constexpr (__cmp3way) + return noexcept(compare_three_way()(std::declval<_Tp>(), + std::declval<_Up>())); + else if constexpr (__weakly_ordered<_Tp, _Up>) + return _Weak_order::_S_noexcept<_Tp, _Up>(); + } + + friend class _Partial_fallback; + + public: + template + requires __partially_ordered<_Tp, _Up> + constexpr partial_ordering + operator()(_Tp&& __e, _Up&& __f) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + static_assert(same_as, decay_t<_Up>>); + + if constexpr (__adl_partial<_Tp, _Up>) + return partial_ordering(partial_order(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f))); + else if constexpr (__cmp3way) + return compare_three_way()(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + else if constexpr (__weakly_ordered<_Tp, _Up>) + return _Weak_order{}(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + } + }; + + template + concept __op_eq_lt = requires(_Tp&& __t, _Up&& __u) + { + { static_cast<_Tp&&>(__t) == static_cast<_Up&&>(__u) } + -> convertible_to; + { static_cast<_Tp&&>(__t) < static_cast<_Up&&>(__u) } + -> convertible_to; + }; + + class _Strong_fallback + { + template + static constexpr bool + _S_noexcept() + { + if constexpr (__strongly_ordered<_Tp, _Up>) + return _Strong_order::_S_noexcept<_Tp, _Up>(); + else + return noexcept(bool(std::declval<_Tp>() == std::declval<_Up>())) + && noexcept(bool(std::declval<_Tp>() < std::declval<_Up>())); + } + + public: + template + requires __strongly_ordered<_Tp, _Up> || __op_eq_lt<_Tp, _Up> + constexpr decltype(auto) + operator()(_Tp&& __e, _Up&& __f) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + static_assert(same_as, decay_t<_Up>>); + + if constexpr (__strongly_ordered<_Tp, _Up>) + return _Strong_order{}(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + else if constexpr (__op_eq_lt<_Tp, _Up>) + return static_cast<_Tp&&>(__e) == static_cast<_Up&&>(__f) + ? strong_ordering::equal + : static_cast<_Tp&&>(__e) < static_cast<_Up&&>(__f) + ? strong_ordering::less + : strong_ordering::greater; + } + }; + + class _Weak_fallback + { + template + static constexpr bool + _S_noexcept() + { + if constexpr (__weakly_ordered<_Tp, _Up>) + return _Weak_order::_S_noexcept<_Tp, _Up>(); + else + return noexcept(bool(std::declval<_Tp>() == std::declval<_Up>())) + && noexcept(bool(std::declval<_Tp>() < std::declval<_Up>())); + } + + public: + template + requires __weakly_ordered<_Tp, _Up> || __op_eq_lt<_Tp, _Up> + constexpr decltype(auto) + operator()(_Tp&& __e, _Up&& __f) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + static_assert(same_as, decay_t<_Up>>); + + if constexpr (__weakly_ordered<_Tp, _Up>) + return _Weak_order{}(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + else if constexpr (__op_eq_lt<_Tp, _Up>) + return static_cast<_Tp&&>(__e) == static_cast<_Up&&>(__f) + ? weak_ordering::equivalent + : static_cast<_Tp&&>(__e) < static_cast<_Up&&>(__f) + ? weak_ordering::less + : weak_ordering::greater; + } + }; + + class _Partial_fallback + { + template + static constexpr bool + _S_noexcept() + { + if constexpr (__partially_ordered<_Tp, _Up>) + return _Partial_order::_S_noexcept<_Tp, _Up>(); + else + return noexcept(bool(std::declval<_Tp>() == std::declval<_Up>())) + && noexcept(bool(std::declval<_Tp>() < std::declval<_Up>())); + } + + public: + template + requires __partially_ordered<_Tp, _Up> || __op_eq_lt<_Tp, _Up> + constexpr decltype(auto) + operator()(_Tp&& __e, _Up&& __f) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + static_assert(same_as, decay_t<_Up>>); + + if constexpr (__partially_ordered<_Tp, _Up>) + return _Partial_order{}(static_cast<_Tp&&>(__e), + static_cast<_Up&&>(__f)); + else if constexpr (__op_eq_lt<_Tp, _Up>) + return static_cast<_Tp&&>(__e) == static_cast<_Up&&>(__f) + ? partial_ordering::equivalent + : static_cast<_Tp&&>(__e) < static_cast<_Up&&>(__f) + ? partial_ordering::less + : static_cast<_Up&&>(__f) < static_cast<_Tp&&>(__e) + ? partial_ordering::greater + : partial_ordering::unordered; + } + }; + } // namespace __cmp_cust + + // [cmp.alg], comparison algorithms + inline namespace __cmp_alg + { + inline constexpr __cmp_cust::_Strong_order strong_order{}; + + inline constexpr __cmp_cust::_Weak_order weak_order{}; + + inline constexpr __cmp_cust::_Partial_order partial_order{}; + + inline constexpr __cmp_cust::_Strong_fallback + compare_strong_order_fallback{}; + + inline constexpr __cmp_cust::_Weak_fallback + compare_weak_order_fallback{}; + + inline constexpr __cmp_cust::_Partial_fallback + compare_partial_order_fallback{}; + } + + namespace __detail + { + // [expos.only.func] synth-three-way + inline constexpr struct _Synth3way + { + template + static constexpr bool + _S_noexcept(const _Tp* __t = nullptr, const _Up* __u = nullptr) + { + if constexpr (three_way_comparable_with<_Tp, _Up>) + return noexcept(*__t <=> *__u); + else + return noexcept(*__t < *__u) && noexcept(*__u < *__t); + } + + template + constexpr auto + operator()(const _Tp& __t, const _Up& __u) const + noexcept(_S_noexcept<_Tp, _Up>()) + requires requires + { + { __t < __u } -> __boolean_testable; + { __u < __t } -> __boolean_testable; + } + { + if constexpr (three_way_comparable_with<_Tp, _Up>) + return __t <=> __u; + else + { + if (__t < __u) + return weak_ordering::less; + else if (__u < __t) + return weak_ordering::greater; + else + return weak_ordering::equivalent; + } + } + } __synth3way = {}; + + // [expos.only.func] synth-three-way-result + template + using __synth3way_t + = decltype(__detail::__synth3way(std::declval<_Tp&>(), + std::declval<_Up&>())); + } // namespace __detail +#endif // concepts +} // namespace std + +#pragma GCC visibility pop + +#endif // C++20 + +#endif // _COMPARE diff --git a/resources/sources/avr-libstdcpp/include/complex b/resources/sources/avr-libstdcpp/include/complex new file mode 100644 index 000000000..52f59a19b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/complex @@ -0,0 +1,1931 @@ +// The template and inlines for the -*- C++ -*- complex number classes. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/complex + * This is a Standard C++ Library header. + */ + +// +// ISO C++ 14882: 26.2 Complex Numbers +// Note: this is not a conforming implementation. +// Initially implemented by Ulrich Drepper +// Improved by Gabriel Dos Reis +// + +#ifndef _GLIBCXX_COMPLEX +#define _GLIBCXX_COMPLEX 1 + +#pragma GCC system_header + +#include +#include +#include +#include + +// Get rid of a macro possibly defined in +#undef complex + +#if __cplusplus > 201703L +# define __cpp_lib_constexpr_complex 201711L +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup complex_numbers Complex Numbers + * @ingroup numerics + * + * Classes and functions for complex numbers. + * @{ + */ + + // Forward declarations. + template class complex; + template<> class complex; + template<> class complex; + template<> class complex; + + /// Return magnitude of @a z. + template _Tp abs(const complex<_Tp>&); + /// Return phase angle of @a z. + template _Tp arg(const complex<_Tp>&); + /// Return @a z magnitude squared. + template _Tp _GLIBCXX20_CONSTEXPR norm(const complex<_Tp>&); + + /// Return complex conjugate of @a z. + template + _GLIBCXX20_CONSTEXPR complex<_Tp> conj(const complex<_Tp>&); + /// Return complex with magnitude @a rho and angle @a theta. + template complex<_Tp> polar(const _Tp&, const _Tp& = 0); + + // Transcendentals: + /// Return complex cosine of @a z. + template complex<_Tp> cos(const complex<_Tp>&); + /// Return complex hyperbolic cosine of @a z. + template complex<_Tp> cosh(const complex<_Tp>&); + /// Return complex base e exponential of @a z. + template complex<_Tp> exp(const complex<_Tp>&); + /// Return complex natural logarithm of @a z. + template complex<_Tp> log(const complex<_Tp>&); + /// Return complex base 10 logarithm of @a z. + template complex<_Tp> log10(const complex<_Tp>&); + /// Return @a x to the @a y'th power. + template complex<_Tp> pow(const complex<_Tp>&, int); + /// Return @a x to the @a y'th power. + template complex<_Tp> pow(const complex<_Tp>&, const _Tp&); + /// Return @a x to the @a y'th power. + template complex<_Tp> pow(const complex<_Tp>&, + const complex<_Tp>&); + /// Return @a x to the @a y'th power. + template complex<_Tp> pow(const _Tp&, const complex<_Tp>&); + /// Return complex sine of @a z. + template complex<_Tp> sin(const complex<_Tp>&); + /// Return complex hyperbolic sine of @a z. + template complex<_Tp> sinh(const complex<_Tp>&); + /// Return complex square root of @a z. + template complex<_Tp> sqrt(const complex<_Tp>&); + /// Return complex tangent of @a z. + template complex<_Tp> tan(const complex<_Tp>&); + /// Return complex hyperbolic tangent of @a z. + template complex<_Tp> tanh(const complex<_Tp>&); + + + // 26.2.2 Primary template class complex + /** + * Template to represent complex numbers. + * + * Specializations for float, double, and long double are part of the + * library. Results with any other type are not guaranteed. + * + * @param Tp Type of real and imaginary values. + */ + template + struct complex + { + /// Value typedef. + typedef _Tp value_type; + + /// Default constructor. First parameter is x, second parameter is y. + /// Unspecified parameters default to 0. + _GLIBCXX_CONSTEXPR complex(const _Tp& __r = _Tp(), const _Tp& __i = _Tp()) + : _M_real(__r), _M_imag(__i) { } + + // Let the compiler synthesize the copy constructor +#if __cplusplus >= 201103L + constexpr complex(const complex&) = default; +#endif + + /// Converting constructor. + template + _GLIBCXX_CONSTEXPR complex(const complex<_Up>& __z) + : _M_real(__z.real()), _M_imag(__z.imag()) { } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + _GLIBCXX_ABI_TAG_CXX11 + constexpr _Tp + real() const { return _M_real; } + + _GLIBCXX_ABI_TAG_CXX11 + constexpr _Tp + imag() const { return _M_imag; } +#else + /// Return real part of complex number. + _Tp& + real() { return _M_real; } + + /// Return real part of complex number. + const _Tp& + real() const { return _M_real; } + + /// Return imaginary part of complex number. + _Tp& + imag() { return _M_imag; } + + /// Return imaginary part of complex number. + const _Tp& + imag() const { return _M_imag; } +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + _GLIBCXX20_CONSTEXPR void + real(_Tp __val) { _M_real = __val; } + + _GLIBCXX20_CONSTEXPR void + imag(_Tp __val) { _M_imag = __val; } + + /// Assign a scalar to this complex number. + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator=(const _Tp&); + + /// Add a scalar to this complex number. + // 26.2.5/1 + _GLIBCXX20_CONSTEXPR complex<_Tp>& + operator+=(const _Tp& __t) + { + _M_real += __t; + return *this; + } + + /// Subtract a scalar from this complex number. + // 26.2.5/3 + _GLIBCXX20_CONSTEXPR complex<_Tp>& + operator-=(const _Tp& __t) + { + _M_real -= __t; + return *this; + } + + /// Multiply this complex number by a scalar. + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator*=(const _Tp&); + /// Divide this complex number by a scalar. + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator/=(const _Tp&); + + // Let the compiler synthesize the copy assignment operator +#if __cplusplus >= 201103L + _GLIBCXX20_CONSTEXPR complex& operator=(const complex&) = default; +#endif + + /// Assign another complex number to this one. + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator=(const complex<_Up>&); + /// Add another complex number to this one. + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator+=(const complex<_Up>&); + /// Subtract another complex number from this one. + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator-=(const complex<_Up>&); + /// Multiply this complex number by another. + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator*=(const complex<_Up>&); + /// Divide this complex number by another. + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& operator/=(const complex<_Up>&); + + _GLIBCXX_CONSTEXPR complex __rep() const + { return *this; } + + private: + _Tp _M_real; + _Tp _M_imag; + }; + + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator=(const _Tp& __t) + { + _M_real = __t; + _M_imag = _Tp(); + return *this; + } + + // 26.2.5/5 + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator*=(const _Tp& __t) + { + _M_real *= __t; + _M_imag *= __t; + return *this; + } + + // 26.2.5/7 + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator/=(const _Tp& __t) + { + _M_real /= __t; + _M_imag /= __t; + return *this; + } + + template + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator=(const complex<_Up>& __z) + { + _M_real = __z.real(); + _M_imag = __z.imag(); + return *this; + } + + // 26.2.5/9 + template + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator+=(const complex<_Up>& __z) + { + _M_real += __z.real(); + _M_imag += __z.imag(); + return *this; + } + + // 26.2.5/11 + template + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator-=(const complex<_Up>& __z) + { + _M_real -= __z.real(); + _M_imag -= __z.imag(); + return *this; + } + + // 26.2.5/13 + // XXX: This is a grammar school implementation. + template + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator*=(const complex<_Up>& __z) + { + const _Tp __r = _M_real * __z.real() - _M_imag * __z.imag(); + _M_imag = _M_real * __z.imag() + _M_imag * __z.real(); + _M_real = __r; + return *this; + } + + // 26.2.5/15 + // XXX: This is a grammar school implementation. + template + template + _GLIBCXX20_CONSTEXPR complex<_Tp>& + complex<_Tp>::operator/=(const complex<_Up>& __z) + { + const _Tp __r = _M_real * __z.real() + _M_imag * __z.imag(); + const _Tp __n = std::norm(__z); + _M_imag = (_M_imag * __z.real() - _M_real * __z.imag()) / __n; + _M_real = __r / __n; + return *this; + } + + // Operators: + //@{ + /// Return new complex value @a x plus @a y. + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator+(const complex<_Tp>& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __x; + __r += __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator+(const complex<_Tp>& __x, const _Tp& __y) + { + complex<_Tp> __r = __x; + __r += __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator+(const _Tp& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __y; + __r += __x; + return __r; + } + //@} + + //@{ + /// Return new complex value @a x minus @a y. + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator-(const complex<_Tp>& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __x; + __r -= __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator-(const complex<_Tp>& __x, const _Tp& __y) + { + complex<_Tp> __r = __x; + __r -= __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator-(const _Tp& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = -__y; + __r += __x; + return __r; + } + //@} + + //@{ + /// Return new complex value @a x times @a y. + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator*(const complex<_Tp>& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __x; + __r *= __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator*(const complex<_Tp>& __x, const _Tp& __y) + { + complex<_Tp> __r = __x; + __r *= __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator*(const _Tp& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __y; + __r *= __x; + return __r; + } + //@} + + //@{ + /// Return new complex value @a x divided by @a y. + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator/(const complex<_Tp>& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __x; + __r /= __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator/(const complex<_Tp>& __x, const _Tp& __y) + { + complex<_Tp> __r = __x; + __r /= __y; + return __r; + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator/(const _Tp& __x, const complex<_Tp>& __y) + { + complex<_Tp> __r = __x; + __r /= __y; + return __r; + } + //@} + + /// Return @a x. + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator+(const complex<_Tp>& __x) + { return __x; } + + /// Return complex negation of @a x. + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + operator-(const complex<_Tp>& __x) + { return complex<_Tp>(-__x.real(), -__x.imag()); } + + //@{ + /// Return true if @a x is equal to @a y. + template + inline _GLIBCXX_CONSTEXPR bool + operator==(const complex<_Tp>& __x, const complex<_Tp>& __y) + { return __x.real() == __y.real() && __x.imag() == __y.imag(); } + + template + inline _GLIBCXX_CONSTEXPR bool + operator==(const complex<_Tp>& __x, const _Tp& __y) + { return __x.real() == __y && __x.imag() == _Tp(); } + +#if !(__cpp_impl_three_way_comparison >= 201907L) + template + inline _GLIBCXX_CONSTEXPR bool + operator==(const _Tp& __x, const complex<_Tp>& __y) + { return __x == __y.real() && _Tp() == __y.imag(); } + //@} + + //@{ + /// Return false if @a x is equal to @a y. + template + inline _GLIBCXX_CONSTEXPR bool + operator!=(const complex<_Tp>& __x, const complex<_Tp>& __y) + { return __x.real() != __y.real() || __x.imag() != __y.imag(); } + + template + inline _GLIBCXX_CONSTEXPR bool + operator!=(const complex<_Tp>& __x, const _Tp& __y) + { return __x.real() != __y || __x.imag() != _Tp(); } + + template + inline _GLIBCXX_CONSTEXPR bool + operator!=(const _Tp& __x, const complex<_Tp>& __y) + { return __x != __y.real() || _Tp() != __y.imag(); } +#endif + //@} + + // Values +#if __cplusplus >= 201103L + template + constexpr _Tp + real(const complex<_Tp>& __z) + { return __z.real(); } + + template + constexpr _Tp + imag(const complex<_Tp>& __z) + { return __z.imag(); } +#else + template + inline _Tp& + real(complex<_Tp>& __z) + { return __z.real(); } + + template + inline const _Tp& + real(const complex<_Tp>& __z) + { return __z.real(); } + + template + inline _Tp& + imag(complex<_Tp>& __z) + { return __z.imag(); } + + template + inline const _Tp& + imag(const complex<_Tp>& __z) + { return __z.imag(); } +#endif + + // 26.2.7/3 abs(__z): Returns the magnitude of __z. + template + inline _Tp + __complex_abs(const complex<_Tp>& __z) + { + _Tp __x = __z.real(); + _Tp __y = __z.imag(); + const _Tp __s = std::max(abs(__x), abs(__y)); + if (__s == _Tp()) // well ... + return __s; + __x /= __s; + __y /= __s; + return __s * sqrt(__x * __x + __y * __y); + } + +#if _GLIBCXX_USE_C99_COMPLEX + inline float + __complex_abs(__complex__ float __z) { return __builtin_cabsf(__z); } + + inline double + __complex_abs(__complex__ double __z) { return __builtin_cabs(__z); } + + inline long double + __complex_abs(const __complex__ long double& __z) + { return __builtin_cabsl(__z); } + + template + inline _Tp + abs(const complex<_Tp>& __z) { return __complex_abs(__z.__rep()); } +#else + template + inline _Tp + abs(const complex<_Tp>& __z) { return __complex_abs(__z); } +#endif + + + // 26.2.7/4: arg(__z): Returns the phase angle of __z. + template + inline _Tp + __complex_arg(const complex<_Tp>& __z) + { return atan2(__z.imag(), __z.real()); } + +#if _GLIBCXX_USE_C99_COMPLEX + inline float + __complex_arg(__complex__ float __z) { return __builtin_cargf(__z); } + + inline double + __complex_arg(__complex__ double __z) { return __builtin_carg(__z); } + + inline long double + __complex_arg(const __complex__ long double& __z) + { return __builtin_cargl(__z); } + + template + inline _Tp + arg(const complex<_Tp>& __z) { return __complex_arg(__z.__rep()); } +#else + template + inline _Tp + arg(const complex<_Tp>& __z) { return __complex_arg(__z); } +#endif + + // 26.2.7/5: norm(__z) returns the squared magnitude of __z. + // As defined, norm() is -not- a norm is the common mathematical + // sense used in numerics. The helper class _Norm_helper<> tries to + // distinguish between builtin floating point and the rest, so as + // to deliver an answer as close as possible to the real value. + template + struct _Norm_helper + { + template + static inline _GLIBCXX20_CONSTEXPR _Tp _S_do_it(const complex<_Tp>& __z) + { + const _Tp __x = __z.real(); + const _Tp __y = __z.imag(); + return __x * __x + __y * __y; + } + }; + + template<> + struct _Norm_helper + { + template + static inline _GLIBCXX20_CONSTEXPR _Tp _S_do_it(const complex<_Tp>& __z) + { + //_Tp __res = std::abs(__z); + //return __res * __res; + const _Tp __x = __z.real(); + const _Tp __y = __z.imag(); + return __x * __x + __y * __y; + } + }; + + template + inline _GLIBCXX20_CONSTEXPR _Tp + norm(const complex<_Tp>& __z) + { + return _Norm_helper<__is_floating<_Tp>::__value + && !_GLIBCXX_FAST_MATH>::_S_do_it(__z); + } + + template + inline complex<_Tp> + polar(const _Tp& __rho, const _Tp& __theta) + { + __glibcxx_assert( __rho >= 0 ); + return complex<_Tp>(__rho * cos(__theta), __rho * sin(__theta)); + } + + template + inline _GLIBCXX20_CONSTEXPR complex<_Tp> + conj(const complex<_Tp>& __z) + { return complex<_Tp>(__z.real(), -__z.imag()); } + + // Transcendentals + + // 26.2.8/1 cos(__z): Returns the cosine of __z. + template + inline complex<_Tp> + __complex_cos(const complex<_Tp>& __z) + { + const _Tp __x = __z.real(); + const _Tp __y = __z.imag(); + return complex<_Tp>(cos(__x) * cosh(__y), -sin(__x) * sinh(__y)); + } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_cos(__complex__ float __z) { return __builtin_ccosf(__z); } + + inline __complex__ double + __complex_cos(__complex__ double __z) { return __builtin_ccos(__z); } + + inline __complex__ long double + __complex_cos(const __complex__ long double& __z) + { return __builtin_ccosl(__z); } + + template + inline complex<_Tp> + cos(const complex<_Tp>& __z) { return __complex_cos(__z.__rep()); } +#else + template + inline complex<_Tp> + cos(const complex<_Tp>& __z) { return __complex_cos(__z); } +#endif + + // 26.2.8/2 cosh(__z): Returns the hyperbolic cosine of __z. + template + inline complex<_Tp> + __complex_cosh(const complex<_Tp>& __z) + { + const _Tp __x = __z.real(); + const _Tp __y = __z.imag(); + return complex<_Tp>(cosh(__x) * cos(__y), sinh(__x) * sin(__y)); + } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_cosh(__complex__ float __z) { return __builtin_ccoshf(__z); } + + inline __complex__ double + __complex_cosh(__complex__ double __z) { return __builtin_ccosh(__z); } + + inline __complex__ long double + __complex_cosh(const __complex__ long double& __z) + { return __builtin_ccoshl(__z); } + + template + inline complex<_Tp> + cosh(const complex<_Tp>& __z) { return __complex_cosh(__z.__rep()); } +#else + template + inline complex<_Tp> + cosh(const complex<_Tp>& __z) { return __complex_cosh(__z); } +#endif + + // 26.2.8/3 exp(__z): Returns the complex base e exponential of x + template + inline complex<_Tp> + __complex_exp(const complex<_Tp>& __z) + { return std::polar<_Tp>(exp(__z.real()), __z.imag()); } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_exp(__complex__ float __z) { return __builtin_cexpf(__z); } + + inline __complex__ double + __complex_exp(__complex__ double __z) { return __builtin_cexp(__z); } + + inline __complex__ long double + __complex_exp(const __complex__ long double& __z) + { return __builtin_cexpl(__z); } + + template + inline complex<_Tp> + exp(const complex<_Tp>& __z) { return __complex_exp(__z.__rep()); } +#else + template + inline complex<_Tp> + exp(const complex<_Tp>& __z) { return __complex_exp(__z); } +#endif + + // 26.2.8/5 log(__z): Returns the natural complex logarithm of __z. + // The branch cut is along the negative axis. + template + inline complex<_Tp> + __complex_log(const complex<_Tp>& __z) + { return complex<_Tp>(log(std::abs(__z)), std::arg(__z)); } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_log(__complex__ float __z) { return __builtin_clogf(__z); } + + inline __complex__ double + __complex_log(__complex__ double __z) { return __builtin_clog(__z); } + + inline __complex__ long double + __complex_log(const __complex__ long double& __z) + { return __builtin_clogl(__z); } + + template + inline complex<_Tp> + log(const complex<_Tp>& __z) { return __complex_log(__z.__rep()); } +#else + template + inline complex<_Tp> + log(const complex<_Tp>& __z) { return __complex_log(__z); } +#endif + + template + inline complex<_Tp> + log10(const complex<_Tp>& __z) + { return std::log(__z) / log(_Tp(10.0)); } + + // 26.2.8/10 sin(__z): Returns the sine of __z. + template + inline complex<_Tp> + __complex_sin(const complex<_Tp>& __z) + { + const _Tp __x = __z.real(); + const _Tp __y = __z.imag(); + return complex<_Tp>(sin(__x) * cosh(__y), cos(__x) * sinh(__y)); + } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_sin(__complex__ float __z) { return __builtin_csinf(__z); } + + inline __complex__ double + __complex_sin(__complex__ double __z) { return __builtin_csin(__z); } + + inline __complex__ long double + __complex_sin(const __complex__ long double& __z) + { return __builtin_csinl(__z); } + + template + inline complex<_Tp> + sin(const complex<_Tp>& __z) { return __complex_sin(__z.__rep()); } +#else + template + inline complex<_Tp> + sin(const complex<_Tp>& __z) { return __complex_sin(__z); } +#endif + + // 26.2.8/11 sinh(__z): Returns the hyperbolic sine of __z. + template + inline complex<_Tp> + __complex_sinh(const complex<_Tp>& __z) + { + const _Tp __x = __z.real(); + const _Tp __y = __z.imag(); + return complex<_Tp>(sinh(__x) * cos(__y), cosh(__x) * sin(__y)); + } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_sinh(__complex__ float __z) { return __builtin_csinhf(__z); } + + inline __complex__ double + __complex_sinh(__complex__ double __z) { return __builtin_csinh(__z); } + + inline __complex__ long double + __complex_sinh(const __complex__ long double& __z) + { return __builtin_csinhl(__z); } + + template + inline complex<_Tp> + sinh(const complex<_Tp>& __z) { return __complex_sinh(__z.__rep()); } +#else + template + inline complex<_Tp> + sinh(const complex<_Tp>& __z) { return __complex_sinh(__z); } +#endif + + // 26.2.8/13 sqrt(__z): Returns the complex square root of __z. + // The branch cut is on the negative axis. + template + complex<_Tp> + __complex_sqrt(const complex<_Tp>& __z) + { + _Tp __x = __z.real(); + _Tp __y = __z.imag(); + + if (__x == _Tp()) + { + _Tp __t = sqrt(abs(__y) / 2); + return complex<_Tp>(__t, __y < _Tp() ? -__t : __t); + } + else + { + _Tp __t = sqrt(2 * (std::abs(__z) + abs(__x))); + _Tp __u = __t / 2; + return __x > _Tp() + ? complex<_Tp>(__u, __y / __t) + : complex<_Tp>(abs(__y) / __t, __y < _Tp() ? -__u : __u); + } + } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_sqrt(__complex__ float __z) { return __builtin_csqrtf(__z); } + + inline __complex__ double + __complex_sqrt(__complex__ double __z) { return __builtin_csqrt(__z); } + + inline __complex__ long double + __complex_sqrt(const __complex__ long double& __z) + { return __builtin_csqrtl(__z); } + + template + inline complex<_Tp> + sqrt(const complex<_Tp>& __z) { return __complex_sqrt(__z.__rep()); } +#else + template + inline complex<_Tp> + sqrt(const complex<_Tp>& __z) { return __complex_sqrt(__z); } +#endif + + // 26.2.8/14 tan(__z): Return the complex tangent of __z. + + template + inline complex<_Tp> + __complex_tan(const complex<_Tp>& __z) + { return std::sin(__z) / std::cos(__z); } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_tan(__complex__ float __z) { return __builtin_ctanf(__z); } + + inline __complex__ double + __complex_tan(__complex__ double __z) { return __builtin_ctan(__z); } + + inline __complex__ long double + __complex_tan(const __complex__ long double& __z) + { return __builtin_ctanl(__z); } + + template + inline complex<_Tp> + tan(const complex<_Tp>& __z) { return __complex_tan(__z.__rep()); } +#else + template + inline complex<_Tp> + tan(const complex<_Tp>& __z) { return __complex_tan(__z); } +#endif + + + // 26.2.8/15 tanh(__z): Returns the hyperbolic tangent of __z. + + template + inline complex<_Tp> + __complex_tanh(const complex<_Tp>& __z) + { return std::sinh(__z) / std::cosh(__z); } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_tanh(__complex__ float __z) { return __builtin_ctanhf(__z); } + + inline __complex__ double + __complex_tanh(__complex__ double __z) { return __builtin_ctanh(__z); } + + inline __complex__ long double + __complex_tanh(const __complex__ long double& __z) + { return __builtin_ctanhl(__z); } + + template + inline complex<_Tp> + tanh(const complex<_Tp>& __z) { return __complex_tanh(__z.__rep()); } +#else + template + inline complex<_Tp> + tanh(const complex<_Tp>& __z) { return __complex_tanh(__z); } +#endif + + + // 26.2.8/9 pow(__x, __y): Returns the complex power base of __x + // raised to the __y-th power. The branch + // cut is on the negative axis. + template + complex<_Tp> + __complex_pow_unsigned(complex<_Tp> __x, unsigned __n) + { + complex<_Tp> __y = __n % 2 ? __x : complex<_Tp>(1); + + while (__n >>= 1) + { + __x *= __x; + if (__n % 2) + __y *= __x; + } + + return __y; + } + + // In C++11 mode we used to implement the resolution of + // DR 844. complex pow return type is ambiguous. + // thus the following overload was disabled in that mode. However, doing + // that causes all sorts of issues, see, for example: + // http://gcc.gnu.org/ml/libstdc++/2013-01/msg00058.html + // and also PR57974. + template + inline complex<_Tp> + pow(const complex<_Tp>& __z, int __n) + { + return __n < 0 + ? complex<_Tp>(1) / std::__complex_pow_unsigned(__z, -(unsigned)__n) + : std::__complex_pow_unsigned(__z, __n); + } + + template + complex<_Tp> + pow(const complex<_Tp>& __x, const _Tp& __y) + { +#if ! _GLIBCXX_USE_C99_COMPLEX + if (__x == _Tp()) + return _Tp(); +#endif + if (__x.imag() == _Tp() && __x.real() > _Tp()) + return pow(__x.real(), __y); + + complex<_Tp> __t = std::log(__x); + return std::polar<_Tp>(exp(__y * __t.real()), __y * __t.imag()); + } + + template + inline complex<_Tp> + __complex_pow(const complex<_Tp>& __x, const complex<_Tp>& __y) + { return __x == _Tp() ? _Tp() : std::exp(__y * std::log(__x)); } + +#if _GLIBCXX_USE_C99_COMPLEX + inline __complex__ float + __complex_pow(__complex__ float __x, __complex__ float __y) + { return __builtin_cpowf(__x, __y); } + + inline __complex__ double + __complex_pow(__complex__ double __x, __complex__ double __y) + { return __builtin_cpow(__x, __y); } + + inline __complex__ long double + __complex_pow(const __complex__ long double& __x, + const __complex__ long double& __y) + { return __builtin_cpowl(__x, __y); } + + template + inline complex<_Tp> + pow(const complex<_Tp>& __x, const complex<_Tp>& __y) + { return __complex_pow(__x.__rep(), __y.__rep()); } +#else + template + inline complex<_Tp> + pow(const complex<_Tp>& __x, const complex<_Tp>& __y) + { return __complex_pow(__x, __y); } +#endif + + template + inline complex<_Tp> + pow(const _Tp& __x, const complex<_Tp>& __y) + { + return __x > _Tp() ? std::polar<_Tp>(pow(__x, __y.real()), + __y.imag() * log(__x)) + : std::pow(complex<_Tp>(__x), __y); + } + + /// 26.2.3 complex specializations + /// complex specialization + template<> + struct complex + { + typedef float value_type; + typedef __complex__ float _ComplexT; + + _GLIBCXX_CONSTEXPR complex(_ComplexT __z) : _M_value(__z) { } + + _GLIBCXX_CONSTEXPR complex(float __r = 0.0f, float __i = 0.0f) +#if __cplusplus >= 201103L + : _M_value{ __r, __i } { } +#else + { + __real__ _M_value = __r; + __imag__ _M_value = __i; + } +#endif + + explicit _GLIBCXX_CONSTEXPR complex(const complex&); + explicit _GLIBCXX_CONSTEXPR complex(const complex&); + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + __attribute ((__abi_tag__ ("cxx11"))) + constexpr float + real() const { return __real__ _M_value; } + + __attribute ((__abi_tag__ ("cxx11"))) + constexpr float + imag() const { return __imag__ _M_value; } +#else + float& + real() { return __real__ _M_value; } + + const float& + real() const { return __real__ _M_value; } + + float& + imag() { return __imag__ _M_value; } + + const float& + imag() const { return __imag__ _M_value; } +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + _GLIBCXX20_CONSTEXPR void + real(float __val) { __real__ _M_value = __val; } + + _GLIBCXX20_CONSTEXPR void + imag(float __val) { __imag__ _M_value = __val; } + + _GLIBCXX20_CONSTEXPR complex& + operator=(float __f) + { + _M_value = __f; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator+=(float __f) + { + _M_value += __f; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator-=(float __f) + { + _M_value -= __f; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator*=(float __f) + { + _M_value *= __f; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator/=(float __f) + { + _M_value /= __f; + return *this; + } + + // Let the compiler synthesize the copy and assignment + // operator. It always does a pretty good job. +#if __cplusplus >= 201103L + _GLIBCXX14_CONSTEXPR complex& operator=(const complex&) = default; +#endif + + template + _GLIBCXX20_CONSTEXPR complex& + operator=(const complex<_Tp>& __z) + { + __real__ _M_value = __z.real(); + __imag__ _M_value = __z.imag(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator+=(const complex<_Tp>& __z) + { + _M_value += __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator-=(const complex<_Tp>& __z) + { + _M_value -= __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator*=(const complex<_Tp>& __z) + { + const _ComplexT __t = __z.__rep(); + _M_value *= __t; + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator/=(const complex<_Tp>& __z) + { + const _ComplexT __t = __z.__rep(); + _M_value /= __t; + return *this; + } + + _GLIBCXX_CONSTEXPR _ComplexT __rep() const { return _M_value; } + + private: + _ComplexT _M_value; + }; + + /// 26.2.3 complex specializations + /// complex specialization + template<> + struct complex + { + typedef double value_type; + typedef __complex__ double _ComplexT; + + _GLIBCXX_CONSTEXPR complex(_ComplexT __z) : _M_value(__z) { } + + _GLIBCXX_CONSTEXPR complex(double __r = 0.0, double __i = 0.0) +#if __cplusplus >= 201103L + : _M_value{ __r, __i } { } +#else + { + __real__ _M_value = __r; + __imag__ _M_value = __i; + } +#endif + + _GLIBCXX_CONSTEXPR complex(const complex& __z) + : _M_value(__z.__rep()) { } + + explicit _GLIBCXX_CONSTEXPR complex(const complex&); + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + __attribute ((__abi_tag__ ("cxx11"))) + constexpr double + real() const { return __real__ _M_value; } + + __attribute ((__abi_tag__ ("cxx11"))) + constexpr double + imag() const { return __imag__ _M_value; } +#else + double& + real() { return __real__ _M_value; } + + const double& + real() const { return __real__ _M_value; } + + double& + imag() { return __imag__ _M_value; } + + const double& + imag() const { return __imag__ _M_value; } +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + _GLIBCXX20_CONSTEXPR void + real(double __val) { __real__ _M_value = __val; } + + _GLIBCXX20_CONSTEXPR void + imag(double __val) { __imag__ _M_value = __val; } + + _GLIBCXX20_CONSTEXPR complex& + operator=(double __d) + { + _M_value = __d; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator+=(double __d) + { + _M_value += __d; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator-=(double __d) + { + _M_value -= __d; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator*=(double __d) + { + _M_value *= __d; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator/=(double __d) + { + _M_value /= __d; + return *this; + } + + // The compiler will synthesize this, efficiently. +#if __cplusplus >= 201103L + _GLIBCXX14_CONSTEXPR complex& operator=(const complex&) = default; +#endif + + template + _GLIBCXX20_CONSTEXPR complex& + operator=(const complex<_Tp>& __z) + { + _M_value = __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator+=(const complex<_Tp>& __z) + { + _M_value += __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator-=(const complex<_Tp>& __z) + { + _M_value -= __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator*=(const complex<_Tp>& __z) + { + const _ComplexT __t = __z.__rep(); + _M_value *= __t; + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator/=(const complex<_Tp>& __z) + { + const _ComplexT __t = __z.__rep(); + _M_value /= __t; + return *this; + } + + _GLIBCXX_CONSTEXPR _ComplexT __rep() const { return _M_value; } + + private: + _ComplexT _M_value; + }; + + /// 26.2.3 complex specializations + /// complex specialization + template<> + struct complex + { + typedef long double value_type; + typedef __complex__ long double _ComplexT; + + _GLIBCXX_CONSTEXPR complex(_ComplexT __z) : _M_value(__z) { } + + _GLIBCXX_CONSTEXPR complex(long double __r = 0.0L, + long double __i = 0.0L) +#if __cplusplus >= 201103L + : _M_value{ __r, __i } { } +#else + { + __real__ _M_value = __r; + __imag__ _M_value = __i; + } +#endif + + _GLIBCXX_CONSTEXPR complex(const complex& __z) + : _M_value(__z.__rep()) { } + + _GLIBCXX_CONSTEXPR complex(const complex& __z) + : _M_value(__z.__rep()) { } + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + __attribute ((__abi_tag__ ("cxx11"))) + constexpr long double + real() const { return __real__ _M_value; } + + __attribute ((__abi_tag__ ("cxx11"))) + constexpr long double + imag() const { return __imag__ _M_value; } +#else + long double& + real() { return __real__ _M_value; } + + const long double& + real() const { return __real__ _M_value; } + + long double& + imag() { return __imag__ _M_value; } + + const long double& + imag() const { return __imag__ _M_value; } +#endif + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // DR 387. std::complex over-encapsulated. + _GLIBCXX20_CONSTEXPR void + real(long double __val) { __real__ _M_value = __val; } + + _GLIBCXX20_CONSTEXPR void + imag(long double __val) { __imag__ _M_value = __val; } + + _GLIBCXX20_CONSTEXPR complex& + operator=(long double __r) + { + _M_value = __r; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator+=(long double __r) + { + _M_value += __r; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator-=(long double __r) + { + _M_value -= __r; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator*=(long double __r) + { + _M_value *= __r; + return *this; + } + + _GLIBCXX20_CONSTEXPR complex& + operator/=(long double __r) + { + _M_value /= __r; + return *this; + } + + // The compiler knows how to do this efficiently +#if __cplusplus >= 201103L + _GLIBCXX14_CONSTEXPR complex& operator=(const complex&) = default; +#endif + + template + _GLIBCXX20_CONSTEXPR complex& + operator=(const complex<_Tp>& __z) + { + _M_value = __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator+=(const complex<_Tp>& __z) + { + _M_value += __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator-=(const complex<_Tp>& __z) + { + _M_value -= __z.__rep(); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator*=(const complex<_Tp>& __z) + { + const _ComplexT __t = __z.__rep(); + _M_value *= __t; + return *this; + } + + template + _GLIBCXX20_CONSTEXPR complex& + operator/=(const complex<_Tp>& __z) + { + const _ComplexT __t = __z.__rep(); + _M_value /= __t; + return *this; + } + + _GLIBCXX_CONSTEXPR _ComplexT __rep() const { return _M_value; } + + private: + _ComplexT _M_value; + }; + + // These bits have to be at the end of this file, so that the + // specializations have all been defined. + inline _GLIBCXX_CONSTEXPR + complex::complex(const complex& __z) + : _M_value(__z.__rep()) { } + + inline _GLIBCXX_CONSTEXPR + complex::complex(const complex& __z) + : _M_value(__z.__rep()) { } + + inline _GLIBCXX_CONSTEXPR + complex::complex(const complex& __z) + : _M_value(__z.__rep()) { } + + // @} group complex_numbers + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // See ext/type_traits.h for the primary template. + template + struct __promote_2, _Up> + { + public: + typedef std::complex::__type> __type; + }; + + template + struct __promote_2<_Tp, std::complex<_Up> > + { + public: + typedef std::complex::__type> __type; + }; + + template + struct __promote_2, std::complex<_Up> > + { + public: + typedef std::complex::__type> __type; + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#if __cplusplus >= 201103L + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Forward declarations. + template std::complex<_Tp> acos(const std::complex<_Tp>&); + template std::complex<_Tp> asin(const std::complex<_Tp>&); + template std::complex<_Tp> atan(const std::complex<_Tp>&); + + template std::complex<_Tp> acosh(const std::complex<_Tp>&); + template std::complex<_Tp> asinh(const std::complex<_Tp>&); + template std::complex<_Tp> atanh(const std::complex<_Tp>&); + // DR 595. + template _Tp fabs(const std::complex<_Tp>&); + + template + inline std::complex<_Tp> + __complex_acos(const std::complex<_Tp>& __z) + { + const std::complex<_Tp> __t = std::asin(__z); + const _Tp __pi_2 = 1.5707963267948966192313216916397514L; + return std::complex<_Tp>(__pi_2 - __t.real(), -__t.imag()); + } + +#if _GLIBCXX_USE_C99_COMPLEX_TR1 + inline __complex__ float + __complex_acos(__complex__ float __z) + { return __builtin_cacosf(__z); } + + inline __complex__ double + __complex_acos(__complex__ double __z) + { return __builtin_cacos(__z); } + + inline __complex__ long double + __complex_acos(const __complex__ long double& __z) + { return __builtin_cacosl(__z); } + + template + inline std::complex<_Tp> + acos(const std::complex<_Tp>& __z) + { return __complex_acos(__z.__rep()); } +#else + /// acos(__z) [8.1.2]. + // Effects: Behaves the same as C99 function cacos, defined + // in subclause 7.3.5.1. + template + inline std::complex<_Tp> + acos(const std::complex<_Tp>& __z) + { return __complex_acos(__z); } +#endif + + template + inline std::complex<_Tp> + __complex_asin(const std::complex<_Tp>& __z) + { + std::complex<_Tp> __t(-__z.imag(), __z.real()); + __t = std::asinh(__t); + return std::complex<_Tp>(__t.imag(), -__t.real()); + } + +#if _GLIBCXX_USE_C99_COMPLEX_TR1 + inline __complex__ float + __complex_asin(__complex__ float __z) + { return __builtin_casinf(__z); } + + inline __complex__ double + __complex_asin(__complex__ double __z) + { return __builtin_casin(__z); } + + inline __complex__ long double + __complex_asin(const __complex__ long double& __z) + { return __builtin_casinl(__z); } + + template + inline std::complex<_Tp> + asin(const std::complex<_Tp>& __z) + { return __complex_asin(__z.__rep()); } +#else + /// asin(__z) [8.1.3]. + // Effects: Behaves the same as C99 function casin, defined + // in subclause 7.3.5.2. + template + inline std::complex<_Tp> + asin(const std::complex<_Tp>& __z) + { return __complex_asin(__z); } +#endif + + template + std::complex<_Tp> + __complex_atan(const std::complex<_Tp>& __z) + { + const _Tp __r2 = __z.real() * __z.real(); + const _Tp __x = _Tp(1.0) - __r2 - __z.imag() * __z.imag(); + + _Tp __num = __z.imag() + _Tp(1.0); + _Tp __den = __z.imag() - _Tp(1.0); + + __num = __r2 + __num * __num; + __den = __r2 + __den * __den; + + return std::complex<_Tp>(_Tp(0.5) * atan2(_Tp(2.0) * __z.real(), __x), + _Tp(0.25) * log(__num / __den)); + } + +#if _GLIBCXX_USE_C99_COMPLEX_TR1 + inline __complex__ float + __complex_atan(__complex__ float __z) + { return __builtin_catanf(__z); } + + inline __complex__ double + __complex_atan(__complex__ double __z) + { return __builtin_catan(__z); } + + inline __complex__ long double + __complex_atan(const __complex__ long double& __z) + { return __builtin_catanl(__z); } + + template + inline std::complex<_Tp> + atan(const std::complex<_Tp>& __z) + { return __complex_atan(__z.__rep()); } +#else + /// atan(__z) [8.1.4]. + // Effects: Behaves the same as C99 function catan, defined + // in subclause 7.3.5.3. + template + inline std::complex<_Tp> + atan(const std::complex<_Tp>& __z) + { return __complex_atan(__z); } +#endif + + template + std::complex<_Tp> + __complex_acosh(const std::complex<_Tp>& __z) + { + // Kahan's formula. + return _Tp(2.0) * std::log(std::sqrt(_Tp(0.5) * (__z + _Tp(1.0))) + + std::sqrt(_Tp(0.5) * (__z - _Tp(1.0)))); + } + +#if _GLIBCXX_USE_C99_COMPLEX_TR1 + inline __complex__ float + __complex_acosh(__complex__ float __z) + { return __builtin_cacoshf(__z); } + + inline __complex__ double + __complex_acosh(__complex__ double __z) + { return __builtin_cacosh(__z); } + + inline __complex__ long double + __complex_acosh(const __complex__ long double& __z) + { return __builtin_cacoshl(__z); } + + template + inline std::complex<_Tp> + acosh(const std::complex<_Tp>& __z) + { return __complex_acosh(__z.__rep()); } +#else + /// acosh(__z) [8.1.5]. + // Effects: Behaves the same as C99 function cacosh, defined + // in subclause 7.3.6.1. + template + inline std::complex<_Tp> + acosh(const std::complex<_Tp>& __z) + { return __complex_acosh(__z); } +#endif + + template + std::complex<_Tp> + __complex_asinh(const std::complex<_Tp>& __z) + { + std::complex<_Tp> __t((__z.real() - __z.imag()) + * (__z.real() + __z.imag()) + _Tp(1.0), + _Tp(2.0) * __z.real() * __z.imag()); + __t = std::sqrt(__t); + + return std::log(__t + __z); + } + +#if _GLIBCXX_USE_C99_COMPLEX_TR1 + inline __complex__ float + __complex_asinh(__complex__ float __z) + { return __builtin_casinhf(__z); } + + inline __complex__ double + __complex_asinh(__complex__ double __z) + { return __builtin_casinh(__z); } + + inline __complex__ long double + __complex_asinh(const __complex__ long double& __z) + { return __builtin_casinhl(__z); } + + template + inline std::complex<_Tp> + asinh(const std::complex<_Tp>& __z) + { return __complex_asinh(__z.__rep()); } +#else + /// asinh(__z) [8.1.6]. + // Effects: Behaves the same as C99 function casin, defined + // in subclause 7.3.6.2. + template + inline std::complex<_Tp> + asinh(const std::complex<_Tp>& __z) + { return __complex_asinh(__z); } +#endif + + template + std::complex<_Tp> + __complex_atanh(const std::complex<_Tp>& __z) + { + const _Tp __i2 = __z.imag() * __z.imag(); + const _Tp __x = _Tp(1.0) - __i2 - __z.real() * __z.real(); + + _Tp __num = _Tp(1.0) + __z.real(); + _Tp __den = _Tp(1.0) - __z.real(); + + __num = __i2 + __num * __num; + __den = __i2 + __den * __den; + + return std::complex<_Tp>(_Tp(0.25) * (log(__num) - log(__den)), + _Tp(0.5) * atan2(_Tp(2.0) * __z.imag(), __x)); + } + +#if _GLIBCXX_USE_C99_COMPLEX_TR1 + inline __complex__ float + __complex_atanh(__complex__ float __z) + { return __builtin_catanhf(__z); } + + inline __complex__ double + __complex_atanh(__complex__ double __z) + { return __builtin_catanh(__z); } + + inline __complex__ long double + __complex_atanh(const __complex__ long double& __z) + { return __builtin_catanhl(__z); } + + template + inline std::complex<_Tp> + atanh(const std::complex<_Tp>& __z) + { return __complex_atanh(__z.__rep()); } +#else + /// atanh(__z) [8.1.7]. + // Effects: Behaves the same as C99 function catanh, defined + // in subclause 7.3.6.3. + template + inline std::complex<_Tp> + atanh(const std::complex<_Tp>& __z) + { return __complex_atanh(__z); } +#endif + + template + inline _Tp + /// fabs(__z) [8.1.8]. + // Effects: Behaves the same as C99 function cabs, defined + // in subclause 7.3.8.1. + fabs(const std::complex<_Tp>& __z) + { return std::abs(__z); } + + /// Additional overloads [8.1.9]. + template + inline typename __gnu_cxx::__promote<_Tp>::__type + arg(_Tp __x) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; +#if (_GLIBCXX11_USE_C99_MATH && !_GLIBCXX_USE_C99_FP_MACROS_DYNAMIC) + return std::signbit(__x) ? __type(3.1415926535897932384626433832795029L) + : __type(); +#else + return std::arg(std::complex<__type>(__x)); +#endif + } + + template + _GLIBCXX_CONSTEXPR inline typename __gnu_cxx::__promote<_Tp>::__type + imag(_Tp) + { return _Tp(); } + + template + _GLIBCXX20_CONSTEXPR inline typename __gnu_cxx::__promote<_Tp>::__type + norm(_Tp __x) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return __type(__x) * __type(__x); + } + + template + _GLIBCXX_CONSTEXPR inline typename __gnu_cxx::__promote<_Tp>::__type + real(_Tp __x) + { return __x; } + + template + inline std::complex::__type> + pow(const std::complex<_Tp>& __x, const _Up& __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return std::pow(std::complex<__type>(__x), __type(__y)); + } + + template + inline std::complex::__type> + pow(const _Tp& __x, const std::complex<_Up>& __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return std::pow(__type(__x), std::complex<__type>(__y)); + } + + template + inline std::complex::__type> + pow(const std::complex<_Tp>& __x, const std::complex<_Up>& __y) + { + typedef typename __gnu_cxx::__promote_2<_Tp, _Up>::__type __type; + return std::pow(std::complex<__type>(__x), + std::complex<__type>(__y)); + } + + // Forward declarations. + // DR 781. + template + std::complex<_Tp> proj(const std::complex<_Tp>&); + + // Generic implementation of std::proj, does not work for infinities. + template + inline std::complex<_Tp> + __complex_proj(const std::complex<_Tp>& __z) + { return __z; } + +#if _GLIBCXX_USE_C99_COMPLEX + inline complex + __complex_proj(const complex& __z) + { return __builtin_cprojf(__z.__rep()); } + + inline complex + __complex_proj(const complex& __z) + { return __builtin_cproj(__z.__rep()); } + + inline complex + __complex_proj(const complex& __z) + { return __builtin_cprojl(__z.__rep()); } +#elif defined _GLIBCXX_USE_C99_MATH_TR1 + inline complex + __complex_proj(const complex& __z) + { + if (__builtin_isinf(__z.real()) || __builtin_isinf(__z.imag())) + return complex(__builtin_inff(), + __builtin_copysignf(0.0f, __z.imag())); + return __z; + } + + inline complex + __complex_proj(const complex& __z) + { + if (__builtin_isinf(__z.real()) || __builtin_isinf(__z.imag())) + return complex(__builtin_inf(), + __builtin_copysign(0.0, __z.imag())); + return __z; + } + + inline complex + __complex_proj(const complex& __z) + { + if (__builtin_isinf(__z.real()) || __builtin_isinf(__z.imag())) + return complex(__builtin_infl(), + __builtin_copysignl(0.0l, __z.imag())); + return __z; + } +#endif + + template + inline std::complex<_Tp> + proj(const std::complex<_Tp>& __z) + { return __complex_proj(__z); } + + // Overload for scalars + template + inline std::complex::__type> + proj(_Tp __x) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return std::proj(std::complex<__type>(__x)); + } + + template + inline _GLIBCXX20_CONSTEXPR + std::complex::__type> + conj(_Tp __x) + { + typedef typename __gnu_cxx::__promote<_Tp>::__type __type; + return std::complex<__type>(__x, -__type()); + } + +#if __cplusplus > 201103L + +inline namespace literals { +inline namespace complex_literals { +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wliteral-suffix" +#define __cpp_lib_complex_udls 201309 + + constexpr std::complex + operator""if(long double __num) + { return std::complex{0.0F, static_cast(__num)}; } + + constexpr std::complex + operator""if(unsigned long long __num) + { return std::complex{0.0F, static_cast(__num)}; } + + constexpr std::complex + operator""i(long double __num) + { return std::complex{0.0, static_cast(__num)}; } + + constexpr std::complex + operator""i(unsigned long long __num) + { return std::complex{0.0, static_cast(__num)}; } + + constexpr std::complex + operator""il(long double __num) + { return std::complex{0.0L, __num}; } + + constexpr std::complex + operator""il(unsigned long long __num) + { return std::complex{0.0L, static_cast(__num)}; } + +#pragma GCC diagnostic pop +} // inline namespace complex_literals +} // inline namespace literals + +#endif // C++14 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif /* _GLIBCXX_COMPLEX */ diff --git a/resources/sources/avr-libstdcpp/include/concepts b/resources/sources/avr-libstdcpp/include/concepts new file mode 100644 index 000000000..e710a5e6e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/concepts @@ -0,0 +1,367 @@ +// -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/concepts + * This is a Standard C++ Library header. + * @ingroup concepts + */ + +#ifndef _GLIBCXX_CONCEPTS +#define _GLIBCXX_CONCEPTS 1 + +#if __cplusplus > 201703L && __cpp_concepts >= 201907L + +#pragma GCC system_header + +/** + * @defgroup concepts Concepts + * @ingroup utilities + * + * Concepts for checking type requirements. + */ + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_concepts 202002L + + // [concepts.lang], language-related concepts + + namespace __detail + { + template + concept __same_as = std::is_same_v<_Tp, _Up>; + } // namespace __detail + + /// [concept.same], concept same_as + template + concept same_as + = __detail::__same_as<_Tp, _Up> && __detail::__same_as<_Up, _Tp>; + + /// [concept.derived], concept derived_from + template + concept derived_from = __is_base_of(_Base, _Derived) + && is_convertible_v; + + /// [concept.convertible], concept convertible_to + template + concept convertible_to = is_convertible_v<_From, _To> + && requires(add_rvalue_reference_t<_From> (&__f)()) { + static_cast<_To>(__f()); + }; + + /// [concept.commonref], concept common_reference_with + template + concept common_reference_with + = same_as, common_reference_t<_Up, _Tp>> + && convertible_to<_Tp, common_reference_t<_Tp, _Up>> + && convertible_to<_Up, common_reference_t<_Tp, _Up>>; + + /// [concept.common], concept common_with + template + concept common_with + = same_as, common_type_t<_Up, _Tp>> + && requires { + static_cast>(std::declval<_Tp>()); + static_cast>(std::declval<_Up>()); + } + && common_reference_with, + add_lvalue_reference_t> + && common_reference_with>, + common_reference_t< + add_lvalue_reference_t, + add_lvalue_reference_t>>; + + // [concepts.arithmetic], arithmetic concepts + + template + concept integral = is_integral_v<_Tp>; + + template + concept signed_integral = integral<_Tp> && is_signed_v<_Tp>; + + template + concept unsigned_integral = integral<_Tp> && !signed_integral<_Tp>; + + template + concept floating_point = is_floating_point_v<_Tp>; + + namespace __detail + { + template + using __cref = const remove_reference_t<_Tp>&; + + template + concept __class_or_enum + = is_class_v<_Tp> || is_union_v<_Tp> || is_enum_v<_Tp>; + } // namespace __detail + + /// [concept.assignable], concept assignable_from + template + concept assignable_from + = is_lvalue_reference_v<_Lhs> + && common_reference_with<__detail::__cref<_Lhs>, __detail::__cref<_Rhs>> + && requires(_Lhs __lhs, _Rhs&& __rhs) { + { __lhs = static_cast<_Rhs&&>(__rhs) } -> same_as<_Lhs>; + }; + + /// [concept.destructible], concept destructible + template + concept destructible = is_nothrow_destructible_v<_Tp>; + + /// [concept.constructible], concept constructible_from + template + concept constructible_from + = destructible<_Tp> && is_constructible_v<_Tp, _Args...>; + + /// [concept.defaultinitializable], concept default_initializable + template + concept default_initializable = constructible_from<_Tp> + && requires + { + _Tp{}; + (void) ::new _Tp; + }; + + /// [concept.moveconstructible], concept move_constructible + template + concept move_constructible + = constructible_from<_Tp, _Tp> && convertible_to<_Tp, _Tp>; + + /// [concept.copyconstructible], concept copy_constructible + template + concept copy_constructible + = move_constructible<_Tp> + && constructible_from<_Tp, _Tp&> && convertible_to<_Tp&, _Tp> + && constructible_from<_Tp, const _Tp&> && convertible_to + && constructible_from<_Tp, const _Tp> && convertible_to; + + // [concept.swappable], concept swappable + + namespace ranges + { + namespace __cust_swap + { + template void swap(_Tp&, _Tp&) = delete; + + template + concept __adl_swap + = (__detail::__class_or_enum> + || __detail::__class_or_enum>) + && requires(_Tp&& __t, _Up&& __u) { + swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + }; + + struct _Swap + { + private: + template + static constexpr bool + _S_noexcept() + { + if constexpr (__adl_swap<_Tp, _Up>) + return noexcept(swap(std::declval<_Tp>(), std::declval<_Up>())); + else + return is_nothrow_move_constructible_v> + && is_nothrow_move_assignable_v>; + } + + public: + template + requires __adl_swap<_Tp, _Up> + || (same_as<_Tp, _Up> && is_lvalue_reference_v<_Tp> + && move_constructible> + && assignable_from<_Tp, remove_reference_t<_Tp>>) + constexpr void + operator()(_Tp&& __t, _Up&& __u) const + noexcept(_S_noexcept<_Tp, _Up>()) + { + if constexpr (__adl_swap<_Tp, _Up>) + swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + else + { + auto __tmp = static_cast&&>(__t); + __t = static_cast&&>(__u); + __u = static_cast&&>(__tmp); + } + } + + template + requires requires(const _Swap& __swap, _Tp& __e1, _Up& __e2) { + __swap(__e1, __e2); + } + constexpr void + operator()(_Tp (&__e1)[_Num], _Up (&__e2)[_Num]) const + noexcept(noexcept(std::declval()(*__e1, *__e2))) + { + for (size_t __n = 0; __n < _Num; ++__n) + (*this)(__e1[__n], __e2[__n]); + } + }; + } // namespace __cust_swap + + inline namespace __cust + { + inline constexpr __cust_swap::_Swap swap{}; + } // inline namespace __cust + } // namespace ranges + + template + concept swappable + = requires(_Tp& __a, _Tp& __b) { ranges::swap(__a, __b); }; + + template + concept swappable_with = common_reference_with<_Tp, _Up> + && requires(_Tp&& __t, _Up&& __u) { + ranges::swap(static_cast<_Tp&&>(__t), static_cast<_Tp&&>(__t)); + ranges::swap(static_cast<_Up&&>(__u), static_cast<_Up&&>(__u)); + ranges::swap(static_cast<_Tp&&>(__t), static_cast<_Up&&>(__u)); + ranges::swap(static_cast<_Up&&>(__u), static_cast<_Tp&&>(__t)); + }; + + // [concepts.object], Object concepts + + template + concept movable = is_object_v<_Tp> && move_constructible<_Tp> + && assignable_from<_Tp&, _Tp> && swappable<_Tp>; + + template + concept copyable = copy_constructible<_Tp> && movable<_Tp> + && assignable_from<_Tp&, _Tp&> && assignable_from<_Tp&, const _Tp&> + && assignable_from<_Tp&, const _Tp>; + + template + concept semiregular = copyable<_Tp> && default_initializable<_Tp>; + + // [concepts.compare], comparison concepts + + // [concept.booleantestable], Boolean testability + namespace __detail + { + template + concept __boolean_testable_impl = convertible_to<_Tp, bool>; + + template + concept __boolean_testable + = __boolean_testable_impl<_Tp> + && requires(_Tp&& __t) + { { !static_cast<_Tp&&>(__t) } -> __boolean_testable_impl; }; + } // namespace __detail + + // [concept.equalitycomparable], concept equality_comparable + + namespace __detail + { + template + concept __weakly_eq_cmp_with + = requires(__detail::__cref<_Tp> __t, __detail::__cref<_Up> __u) { + { __t == __u } -> __boolean_testable; + { __t != __u } -> __boolean_testable; + { __u == __t } -> __boolean_testable; + { __u != __t } -> __boolean_testable; + }; + } // namespace __detail + + template + concept equality_comparable = __detail::__weakly_eq_cmp_with<_Tp, _Tp>; + + template + concept equality_comparable_with + = equality_comparable<_Tp> && equality_comparable<_Up> + && common_reference_with<__detail::__cref<_Tp>, __detail::__cref<_Up>> + && equality_comparable, + __detail::__cref<_Up>>> + && __detail::__weakly_eq_cmp_with<_Tp, _Up>; + + namespace __detail + { + template + concept __partially_ordered_with + = requires(const remove_reference_t<_Tp>& __t, + const remove_reference_t<_Up>& __u) { + { __t < __u } -> __boolean_testable; + { __t > __u } -> __boolean_testable; + { __t <= __u } -> __boolean_testable; + { __t >= __u } -> __boolean_testable; + { __u < __t } -> __boolean_testable; + { __u > __t } -> __boolean_testable; + { __u <= __t } -> __boolean_testable; + { __u >= __t } -> __boolean_testable; + }; + } // namespace __detail + + // [concept.totallyordered], concept totally_ordered + template + concept totally_ordered + = equality_comparable<_Tp> + && __detail::__partially_ordered_with<_Tp, _Tp>; + + template + concept totally_ordered_with + = totally_ordered<_Tp> && totally_ordered<_Up> + && equality_comparable_with<_Tp, _Up> + && totally_ordered, + __detail::__cref<_Up>>> + && __detail::__partially_ordered_with<_Tp, _Up>; + + template + concept regular = semiregular<_Tp> && equality_comparable<_Tp>; + + // [concepts.callable], callable concepts + + /// [concept.invocable], concept invocable + template + concept invocable = is_invocable_v<_Fn, _Args...>; + + /// [concept.regularinvocable], concept regular_invocable + template + concept regular_invocable = invocable<_Fn, _Args...>; + + /// [concept.predicate], concept predicate + template + concept predicate = regular_invocable<_Fn, _Args...> + && __detail::__boolean_testable>; + + /// [concept.relation], concept relation + template + concept relation + = predicate<_Rel, _Tp, _Tp> && predicate<_Rel, _Up, _Up> + && predicate<_Rel, _Tp, _Up> && predicate<_Rel, _Up, _Tp>; + + /// [concept.equiv], concept equivalence_relation + template + concept equivalence_relation = relation<_Rel, _Tp, _Up>; + + /// [concept.strictweakorder], concept strict_weak_order + template + concept strict_weak_order = relation<_Rel, _Tp, _Up>; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +#endif // C++2a + +#endif /* _GLIBCXX_CONCEPTS */ diff --git a/resources/sources/avr-libstdcpp/include/coroutine b/resources/sources/avr-libstdcpp/include/coroutine new file mode 100644 index 000000000..b40a3bcf9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/coroutine @@ -0,0 +1,303 @@ +// -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/coroutine + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_COROUTINE +#define _GLIBCXX_COROUTINE 1 + +#pragma GCC system_header + +// It is very likely that earlier versions would work, but they are untested. +#if __cplusplus >= 201402L + +#include + +/** + * @defgroup coroutines Coroutines + * + * Components for supporting coroutine implementations. + */ + +#if __cplusplus > 201703L && __cpp_impl_three_way_comparison >= 201907L +# include +# define _COROUTINES_USE_SPACESHIP 1 +#else +# include // for std::less +# define _COROUTINES_USE_SPACESHIP 0 +#endif + +namespace std _GLIBCXX_VISIBILITY (default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cpp_impl_coroutine + +#define __cpp_lib_coroutine 201902L + + inline namespace __n4861 { + + // 17.12.2 coroutine traits + /// [coroutine.traits] + /// [coroutine.traits.primary] + /// If _Result::promise_type is valid and denotes a type then the traits + /// have a single publicly accessible member, otherwise they are empty. + template + struct __coroutine_traits_impl {}; + + template + struct __coroutine_traits_impl<_Result, + __void_t> + { + using promise_type = typename _Result::promise_type; + }; + + template + struct coroutine_traits : __coroutine_traits_impl<_Result> {}; + + // 17.12.3 Class template coroutine_handle + /// [coroutine.handle] + template + struct coroutine_handle; + + template <> struct + coroutine_handle + { + public: + // 17.12.3.1, construct/reset + constexpr coroutine_handle() noexcept : _M_fr_ptr(0) {} + + constexpr coroutine_handle(std::nullptr_t __h) noexcept + : _M_fr_ptr(__h) + {} + + coroutine_handle& operator=(std::nullptr_t) noexcept + { + _M_fr_ptr = nullptr; + return *this; + } + + public: + // 17.12.3.2, export/import + constexpr void* address() const noexcept { return _M_fr_ptr; } + + constexpr static coroutine_handle from_address(void* __a) noexcept + { + coroutine_handle __self; + __self._M_fr_ptr = __a; + return __self; + } + + public: + // 17.12.3.3, observers + constexpr explicit operator bool() const noexcept + { + return bool(_M_fr_ptr); + } + + bool done() const noexcept { return __builtin_coro_done(_M_fr_ptr); } + + // 17.12.3.4, resumption + void operator()() const { resume(); } + + void resume() const { __builtin_coro_resume(_M_fr_ptr); } + + void destroy() const { __builtin_coro_destroy(_M_fr_ptr); } + + protected: + void* _M_fr_ptr; + }; + + // 17.12.3.6 Comparison operators + /// [coroutine.handle.compare] + constexpr bool operator==(coroutine_handle<> __a, + coroutine_handle<> __b) noexcept + { + return __a.address() == __b.address(); + } + +#if _COROUTINES_USE_SPACESHIP + constexpr strong_ordering + operator<=>(coroutine_handle<> __a, coroutine_handle<> __b) noexcept + { return std::compare_three_way()(__a.address(), __b.address()); } +#else + // These are to enable operation with std=c++14,17. + constexpr bool operator!=(coroutine_handle<> __a, + coroutine_handle<> __b) noexcept + { + return !(__a == __b); + } + + constexpr bool operator<(coroutine_handle<> __a, + coroutine_handle<> __b) noexcept + { + return less()(__a.address(), __b.address()); + } + + constexpr bool operator>(coroutine_handle<> __a, + coroutine_handle<> __b) noexcept + { + return __b < __a; + } + + constexpr bool operator<=(coroutine_handle<> __a, + coroutine_handle<> __b) noexcept + { + return !(__a > __b); + } + + constexpr bool operator>=(coroutine_handle<> __a, + coroutine_handle<> __b) noexcept + { + return !(__a < __b); + } +#endif + + template + struct coroutine_handle : coroutine_handle<> + { + // 17.12.3.1, construct/reset + using coroutine_handle<>::coroutine_handle; + + static coroutine_handle from_promise(_Promise& p) + { + coroutine_handle __self; + __self._M_fr_ptr + = __builtin_coro_promise((char*) &p, __alignof(_Promise), true); + return __self; + } + + coroutine_handle& operator=(std::nullptr_t) noexcept + { + coroutine_handle<>::operator=(nullptr); + return *this; + } + + // 17.12.3.2, export/import + constexpr static coroutine_handle from_address(void* __a) + { + coroutine_handle __self; + __self._M_fr_ptr = __a; + return __self; + } + + // 17.12.3.5, promise accesss + _Promise& promise() const + { + void* __t + = __builtin_coro_promise (this->_M_fr_ptr, __alignof(_Promise), false); + return *static_cast<_Promise*>(__t); + } + }; + + /// [coroutine.noop] + struct noop_coroutine_promise + { + }; + + void __dummy_resume_destroy() __attribute__((__weak__)); + void __dummy_resume_destroy() {} + + struct __noop_coro_frame + { + void (*__r)() = __dummy_resume_destroy; + void (*__d)() = __dummy_resume_destroy; + struct noop_coroutine_promise __p; + } __noop_coro_fr __attribute__((__weak__)); + + // 17.12.4.1 Class noop_coroutine_promise + /// [coroutine.promise.noop] + template <> + struct coroutine_handle : public coroutine_handle<> + { + using _Promise = noop_coroutine_promise; + + public: + // 17.12.4.2.1, observers + constexpr explicit operator bool() const noexcept { return true; } + + constexpr bool done() const noexcept { return false; } + + // 17.12.4.2.2, resumption + void operator()() const noexcept {} + + void resume() const noexcept {} + + void destroy() const noexcept {} + + // 17.12.4.2.3, promise access + _Promise& promise() const + { + return *static_cast<_Promise*>( + __builtin_coro_promise(this->_M_fr_ptr, __alignof(_Promise), false)); + } + + // 17.12.4.2.4, address + private: + friend coroutine_handle noop_coroutine() noexcept; + + coroutine_handle() noexcept { this->_M_fr_ptr = (void*) &__noop_coro_fr; } + }; + + using noop_coroutine_handle = coroutine_handle; + + inline noop_coroutine_handle noop_coroutine() noexcept + { + return noop_coroutine_handle(); + } + + // 17.12.5 Trivial awaitables + /// [coroutine.trivial.awaitables] + struct suspend_always + { + bool await_ready() { return false; } + + void await_suspend(coroutine_handle<>) {} + + void await_resume() {} + }; + + struct suspend_never + { + bool await_ready() { return true; } + + void await_suspend(coroutine_handle<>) {} + + void await_resume() {} + }; + + } // namespace __n4861 + +#else +#error "the coroutine header requires -fcoroutines" +#endif + + _GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++14 (we are allowing use from at least this) + +#endif // _GLIBCXX_COROUTINE diff --git a/resources/sources/avr-libstdcpp/include/csetjmp b/resources/sources/avr-libstdcpp/include/csetjmp new file mode 100644 index 000000000..c3b77b023 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/csetjmp @@ -0,0 +1,61 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file csetjmp + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c setjmp.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 20.4.6 C library +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CSETJMP +#define _GLIBCXX_CSETJMP 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef longjmp + +// Adhere to section 17.4.1.2 clause 5 of ISO 14882:1998 +#ifndef setjmp +#define setjmp(env) setjmp (env) +#endif + +namespace std +{ + using ::jmp_buf; + using ::longjmp; +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/csignal b/resources/sources/avr-libstdcpp/include/csignal new file mode 100644 index 000000000..7a8841272 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/csignal @@ -0,0 +1,57 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file csignal + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c signal.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 20.4.6 C library +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CSIGNAL +#define _GLIBCXX_CSIGNAL 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef raise + +namespace std +{ + using ::sig_atomic_t; + using ::signal; + using ::raise; +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cstdalign b/resources/sources/avr-libstdcpp/include/cstdalign new file mode 100644 index 000000000..b4c413a8a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstdalign @@ -0,0 +1,44 @@ +// -*- C++ -*- + +// Copyright (C) 2011-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cstdalign + * This is a Standard C++ Library header. + */ + +#pragma GCC system_header + +#ifndef _GLIBCXX_CSTDALIGN +#define _GLIBCXX_CSTDALIGN 1 + +#if __cplusplus < 201103L +# include +#else +# include +# if _GLIBCXX_HAVE_STDALIGN_H +# include +# endif +#endif + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/cstdarg b/resources/sources/avr-libstdcpp/include/cstdarg new file mode 100644 index 000000000..749c85ec8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstdarg @@ -0,0 +1,58 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cstdarg + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c stdarg.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 20.4.6 C library +// + +#pragma GCC system_header + +#undef __need___va_list +#include +#include + +#ifndef _GLIBCXX_CSTDARG +#define _GLIBCXX_CSTDARG 1 + +// Adhere to section 17.4.1.2 clause 5 of ISO 14882:1998 +#ifndef va_end +#define va_end(ap) va_end (ap) +#endif + +namespace std +{ + using ::va_list; +} // namespace std + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cstdbool b/resources/sources/avr-libstdcpp/include/cstdbool new file mode 100644 index 000000000..c76ecca3e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstdbool @@ -0,0 +1,44 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cstdbool + * This is a Standard C++ Library header. + */ + +#pragma GCC system_header + +#ifndef _GLIBCXX_CSTDBOOL +#define _GLIBCXX_CSTDBOOL 1 + +#if __cplusplus < 201103L +# include +#else +# include +# if _GLIBCXX_HAVE_STDBOOL_H +# include +# endif +#endif + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/cstddef b/resources/sources/avr-libstdcpp/include/cstddef new file mode 100644 index 000000000..ce9cd3e9d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstddef @@ -0,0 +1,181 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file cstddef + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c stddef.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 18.1 Types +// + +#ifndef _GLIBCXX_CSTDDEF +#define _GLIBCXX_CSTDDEF 1 + +#pragma GCC system_header + +#undef __need_wchar_t +#undef __need_ptrdiff_t +#undef __need_size_t +#undef __need_NULL +#undef __need_wint_t +#include +#include + +extern "C++" +{ +#if __cplusplus >= 201103L +namespace std +{ + // We handle size_t, ptrdiff_t, and nullptr_t in c++config.h. + using ::max_align_t; +} +#endif // C++11 + +#if __cplusplus >= 201703L +namespace std +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +#define __cpp_lib_byte 201603 + + /// std::byte + enum class byte : unsigned char {}; + + template struct __byte_operand { }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; +#ifdef _GLIBCXX_USE_WCHAR_T + template<> struct __byte_operand { using __type = byte; }; +#endif +#ifdef _GLIBCXX_USE_CHAR8_T + template<> struct __byte_operand { using __type = byte; }; +#endif + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; + template<> struct __byte_operand { using __type = byte; }; +#if defined(__GLIBCXX_TYPE_INT_N_0) + template<> struct __byte_operand<__GLIBCXX_TYPE_INT_N_0> + { using __type = byte; }; + template<> struct __byte_operand + { using __type = byte; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + template<> struct __byte_operand<__GLIBCXX_TYPE_INT_N_1> + { using __type = byte; }; + template<> struct __byte_operand + { using __type = byte; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + template<> struct __byte_operand<__GLIBCXX_TYPE_INT_N_2> + { using __type = byte; }; + template<> struct __byte_operand + { using __type = byte; }; +#endif + template + struct __byte_operand + : __byte_operand<_IntegerType> { }; + template + struct __byte_operand + : __byte_operand<_IntegerType> { }; + template + struct __byte_operand + : __byte_operand<_IntegerType> { }; + + template + using __byte_op_t = typename __byte_operand<_IntegerType>::__type; + + template + constexpr __byte_op_t<_IntegerType> + operator<<(byte __b, _IntegerType __shift) noexcept + { return (byte)(unsigned char)((unsigned)__b << __shift); } + + template + constexpr __byte_op_t<_IntegerType> + operator>>(byte __b, _IntegerType __shift) noexcept + { return (byte)(unsigned char)((unsigned)__b >> __shift); } + + constexpr byte + operator|(byte __l, byte __r) noexcept + { return (byte)(unsigned char)((unsigned)__l | (unsigned)__r); } + + constexpr byte + operator&(byte __l, byte __r) noexcept + { return (byte)(unsigned char)((unsigned)__l & (unsigned)__r); } + + constexpr byte + operator^(byte __l, byte __r) noexcept + { return (byte)(unsigned char)((unsigned)__l ^ (unsigned)__r); } + + constexpr byte + operator~(byte __b) noexcept + { return (byte)(unsigned char)~(unsigned)__b; } + + template + constexpr __byte_op_t<_IntegerType>& + operator<<=(byte& __b, _IntegerType __shift) noexcept + { return __b = __b << __shift; } + + template + constexpr __byte_op_t<_IntegerType>& + operator>>=(byte& __b, _IntegerType __shift) noexcept + { return __b = __b >> __shift; } + + constexpr byte& + operator|=(byte& __l, byte __r) noexcept + { return __l = __l | __r; } + + constexpr byte& + operator&=(byte& __l, byte __r) noexcept + { return __l = __l & __r; } + + constexpr byte& + operator^=(byte& __l, byte __r) noexcept + { return __l = __l ^ __r; } + + template + constexpr _IntegerType + to_integer(__byte_op_t<_IntegerType> __b) noexcept + { return _IntegerType(__b); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 +} // extern "C++" + +#endif // _GLIBCXX_CSTDDEF diff --git a/resources/sources/avr-libstdcpp/include/cstdint b/resources/sources/avr-libstdcpp/include/cstdint new file mode 100644 index 000000000..8e742fa7b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstdint @@ -0,0 +1,91 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cstdint + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_CSTDINT +#define _GLIBCXX_CSTDINT 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +#if _GLIBCXX_HAVE_STDINT_H +# include +#endif + +namespace std +{ +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + using ::int8_t; + using ::int16_t; + using ::int32_t; + using ::int64_t; + + using ::int_fast8_t; + using ::int_fast16_t; + using ::int_fast32_t; + using ::int_fast64_t; + + using ::int_least8_t; + using ::int_least16_t; + using ::int_least32_t; + using ::int_least64_t; + + using ::intmax_t; + using ::intptr_t; + + using ::uint8_t; + using ::uint16_t; + using ::uint32_t; + using ::uint64_t; + + using ::uint_fast8_t; + using ::uint_fast16_t; + using ::uint_fast32_t; + using ::uint_fast64_t; + + using ::uint_least8_t; + using ::uint_least16_t; + using ::uint_least32_t; + using ::uint_least64_t; + + using ::uintmax_t; + using ::uintptr_t; +#else // !_GLIBCXX_USE_C99_STDINT_TR1 + // Define the minimum needed for , etc. + using intmax_t = __INTMAX_TYPE__; + using uintmax_t = __UINTMAX_TYPE__; +#endif // _GLIBCXX_USE_C99_STDINT_TR1 +} // namespace std + +#endif // C++11 + +#endif // _GLIBCXX_CSTDINT diff --git a/resources/sources/avr-libstdcpp/include/cstdio b/resources/sources/avr-libstdcpp/include/cstdio new file mode 100644 index 000000000..b1dad4e4b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstdio @@ -0,0 +1,192 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cstdio + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c stdio.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 27.8.2 C Library files +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CSTDIO +#define _GLIBCXX_CSTDIO 1 + +#if __cplusplus <= 201103L && !defined(_GLIBCXX_HAVE_GETS) +extern "C" char* gets (char* __s) __attribute__((__deprecated__)); +#endif + +// Get rid of those macros defined in in lieu of real functions. +#undef clearerr +#undef fclose +#undef feof +#undef ferror +#undef fflush +#undef fgetc +#undef fgetpos +#undef fgets +#undef fopen +#undef fprintf +#undef fputc +#undef fputs +#undef fread +#undef freopen +#undef fscanf +#undef fseek +#undef fsetpos +#undef ftell +#undef fwrite +#undef getc +#undef getchar +#if __cplusplus <= 201103L +# undef gets +#endif +#undef perror +#undef printf +#undef putc +#undef putchar +#undef puts +#undef remove +#undef rename +#undef rewind +#undef scanf +#undef setbuf +#undef setvbuf +#undef sprintf +#undef sscanf +#undef tmpfile +#undef tmpnam +#undef ungetc +#undef vfprintf +#undef vprintf +#undef vsprintf + +namespace std +{ + using ::FILE; + using ::fpos_t; + + using ::clearerr; + using ::fclose; + using ::feof; + using ::ferror; + using ::fflush; + using ::fgetc; + using ::fgetpos; + using ::fgets; + using ::fopen; + using ::fprintf; + using ::fputc; + using ::fputs; + using ::fread; + using ::freopen; + using ::fscanf; + using ::fseek; + using ::fsetpos; + using ::ftell; + using ::fwrite; + using ::getc; + using ::getchar; +#if __cplusplus <= 201103L + // LWG 2249 + using ::gets; +#endif + using ::perror; + using ::printf; + using ::putc; + using ::putchar; + using ::puts; + using ::remove; + using ::rename; + using ::rewind; + using ::scanf; + using ::setbuf; + using ::setvbuf; + using ::sprintf; + using ::sscanf; + using ::tmpfile; +#if _GLIBCXX_USE_TMPNAM + using ::tmpnam; +#endif + using ::ungetc; + using ::vfprintf; + using ::vprintf; + using ::vsprintf; +} // namespace + +#if _GLIBCXX_USE_C99_STDIO + +#undef snprintf +#undef vfscanf +#undef vscanf +#undef vsnprintf +#undef vsscanf + +namespace __gnu_cxx +{ +#if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC + extern "C" int + (snprintf)(char * __restrict, std::size_t, const char * __restrict, ...) + throw (); + extern "C" int + (vfscanf)(FILE * __restrict, const char * __restrict, __gnuc_va_list); + extern "C" int (vscanf)(const char * __restrict, __gnuc_va_list); + extern "C" int + (vsnprintf)(char * __restrict, std::size_t, const char * __restrict, + __gnuc_va_list) throw (); + extern "C" int + (vsscanf)(const char * __restrict, const char * __restrict, __gnuc_va_list) + throw (); +#endif + +#if !_GLIBCXX_USE_C99_DYNAMIC + using ::snprintf; + using ::vfscanf; + using ::vscanf; + using ::vsnprintf; +#endif +} // namespace __gnu_cxx + +namespace std +{ + using ::__gnu_cxx::snprintf; + using ::__gnu_cxx::vfscanf; + using ::__gnu_cxx::vscanf; + using ::__gnu_cxx::vsnprintf; +} // namespace std + +#endif // _GLIBCXX_USE_C99_STDIO + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cstdlib b/resources/sources/avr-libstdcpp/include/cstdlib new file mode 100644 index 000000000..c67f40145 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstdlib @@ -0,0 +1,216 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cstdlib + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c stdlib.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 20.4.6 C library +// + +#pragma GCC system_header + +#include + +#ifndef _GLIBCXX_CSTDLIB +#define _GLIBCXX_CSTDLIB 1 + +#if !_GLIBCXX_HOSTED +// The C standard does not require a freestanding implementation to +// provide . However, the C++ standard does still require +// -- but only the functionality mentioned in +// [lib.support.start.term]. + +#define EXIT_SUCCESS 0 +#define EXIT_FAILURE 1 + +namespace std +{ + extern "C" void abort(void) throw () _GLIBCXX_NORETURN; + extern "C" int atexit(void (*)(void)) throw (); + extern "C" void exit(int) throw () _GLIBCXX_NORETURN; +#if __cplusplus >= 201103L +# ifdef _GLIBCXX_HAVE_AT_QUICK_EXIT + extern "C" int at_quick_exit(void (*)(void)) throw (); +# endif +# ifdef _GLIBCXX_HAVE_QUICK_EXIT + extern "C" void quick_exit(int) throw() _GLIBCXX_NORETURN; +# endif +#endif +} // namespace std + +#else + +// Need to ensure this finds the C library's not a libstdc++ +// wrapper that might already be installed later in the include search path. +#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS +#include_next +#undef _GLIBCXX_INCLUDE_NEXT_C_HEADERS +#include + +// Get rid of those macros defined in in lieu of real functions. +#undef abort +#if __cplusplus >= 201703L && defined(_GLIBCXX_HAVE_ALIGNED_ALLOC) +# undef aligned_alloc +#endif +#undef atexit +#if __cplusplus >= 201103L +# ifdef _GLIBCXX_HAVE_AT_QUICK_EXIT +# undef at_quick_exit +# endif +#endif +#undef atof +#undef atoi +#undef atol +#undef bsearch +#undef calloc +#undef div +#undef exit +#undef free +#undef getenv +#undef labs +#undef ldiv +#undef malloc +#undef mblen +#undef mbstowcs +#undef mbtowc +#undef qsort +#if __cplusplus >= 201103L +# ifdef _GLIBCXX_HAVE_QUICK_EXIT +# undef quick_exit +# endif +#endif +#undef rand +#undef realloc +#undef srand +#undef strtod +#undef strtol +#undef strtoul +#undef system +#undef wcstombs +#undef wctomb + +extern "C++" +{ +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using ::div_t; + using ::ldiv_t; + + using ::abort; +#if __cplusplus >= 201703L && defined(_GLIBCXX_HAVE_ALIGNED_ALLOC) + using ::aligned_alloc; +#endif + using ::atexit; +#if __cplusplus >= 201103L +# ifdef _GLIBCXX_HAVE_AT_QUICK_EXIT + using ::at_quick_exit; +# endif +#endif + using ::atof; + using ::atoi; + using ::atol; + using ::bsearch; + using ::calloc; + using ::div; + using ::exit; + using ::free; + using ::getenv; + using ::labs; + using ::ldiv; + using ::malloc; +#ifdef _GLIBCXX_HAVE_MBSTATE_T + using ::mblen; + using ::mbstowcs; + using ::mbtowc; +#endif // _GLIBCXX_HAVE_MBSTATE_T + using ::qsort; +#if __cplusplus >= 201103L +# ifdef _GLIBCXX_HAVE_QUICK_EXIT + using ::quick_exit; +# endif +#endif + using ::rand; + using ::realloc; + using ::srand; + using ::strtod; + using ::strtol; + using ::strtoul; + using ::system; +#ifdef _GLIBCXX_USE_WCHAR_T + using ::wcstombs; + using ::wctomb; +#endif // _GLIBCXX_USE_WCHAR_T + +#ifndef __CORRECT_ISO_CPP_STDLIB_H_PROTO + inline ldiv_t + div(long __i, long __j) { return ldiv(__i, __j); } +#endif + + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#if _GLIBCXX_USE_C99_STDLIB + +#undef _Exit +#undef llabs +#undef lldiv +#undef atoll +#undef strtoll +#undef strtoull +#undef strtof +#undef strtold + +#endif // _GLIBCXX_USE_C99_STDLIB + +} // extern "C++" + +// OpenPLC: AVR libc lacks strtoll/strtoull (no 64-bit string conversion). +// Provide minimal shims so code that uses these (like STruC++ IEC STRING +// operations on LINT/ULINT) can link. Falls back to 32-bit strtol/strtoul +// which is sufficient for most PLC use cases. +#ifdef __AVR__ +namespace std { + inline long long strtoll(const char* nptr, char** endptr, int base) { + return static_cast(::strtol(nptr, endptr, base)); + } + inline unsigned long long strtoull(const char* nptr, char** endptr, int base) { + return static_cast(::strtoul(nptr, endptr, base)); + } +} +#endif + +#endif // !_GLIBCXX_HOSTED + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cstring b/resources/sources/avr-libstdcpp/include/cstring new file mode 100644 index 000000000..02199a8e9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cstring @@ -0,0 +1,126 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file cstring + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c string.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 20.4.6 C library +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CSTRING +#define _GLIBCXX_CSTRING 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef memchr +#undef memcmp +#undef memcpy +#undef memmove +#undef memset +#undef strcat +#undef strchr +#undef strcmp +#undef strcoll +#undef strcpy +#undef strcspn +#undef strerror +#undef strlen +#undef strncat +#undef strncmp +#undef strncpy +#undef strpbrk +#undef strrchr +#undef strspn +#undef strstr +#undef strtok +#undef strxfrm + +extern "C++" +{ +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using ::memchr; + using ::memcmp; + using ::memcpy; + using ::memmove; + using ::memset; + using ::strcat; + using ::strcmp; + using ::strcoll; + using ::strcpy; + using ::strcspn; + using ::strerror; + using ::strlen; + using ::strncat; + using ::strncmp; + using ::strncpy; + using ::strspn; + using ::strtok; + using ::strxfrm; + using ::strchr; + using ::strpbrk; + using ::strrchr; + using ::strstr; + +#ifndef __CORRECT_ISO_CPP_STRING_H_PROTO + inline void* + memchr(void* __s, int __c, size_t __n) + { return __builtin_memchr(__s, __c, __n); } + + inline char* + strchr(char* __s, int __n) + { return __builtin_strchr(__s, __n); } + + inline char* + strpbrk(char* __s1, const char* __s2) + { return __builtin_strpbrk(__s1, __s2); } + + inline char* + strrchr(char* __s, int __n) + { return __builtin_strrchr(__s, __n); } + + inline char* + strstr(char* __s1, const char* __s2) + { return __builtin_strstr(__s1, __s2); } +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +} // extern "C++" + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ctgmath b/resources/sources/avr-libstdcpp/include/ctgmath new file mode 100644 index 000000000..6ee36036e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ctgmath @@ -0,0 +1,44 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/ctgmath + * This is a Standard C++ Library header. + */ + +#pragma GCC system_header + +#ifndef _GLIBCXX_CTGMATH +#define _GLIBCXX_CTGMATH 1 + +#if __cplusplus < 201103L +# include +#else +# include +extern "C++" { +# include +} +#endif + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/ctime b/resources/sources/avr-libstdcpp/include/ctime new file mode 100644 index 000000000..abac94027 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ctime @@ -0,0 +1,84 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/ctime + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c time.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 20.5 Date and time +// + +#pragma GCC system_header + +#include +#include + +#ifndef _GLIBCXX_CTIME +#define _GLIBCXX_CTIME 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef clock +#undef difftime +#undef mktime +#undef time +#undef asctime +#undef ctime +#undef gmtime +#undef localtime +#undef strftime + +namespace std +{ + using ::clock_t; + using ::time_t; + using ::tm; + + using ::clock; + using ::difftime; + using ::mktime; + using ::time; + using ::asctime; + using ::ctime; + using ::gmtime; + using ::localtime; + using ::strftime; +} // namespace + +#if __cplusplus >= 201703L && defined(_GLIBCXX_HAVE_TIMESPEC_GET) +#undef timespec_get +namespace std +{ + using ::timespec; + using ::timespec_get; +} // namespace std +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cuchar b/resources/sources/avr-libstdcpp/include/cuchar new file mode 100644 index 000000000..fc26715e2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cuchar @@ -0,0 +1,77 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 2015-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cuchar + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c uchar.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882:2011 21.8 +// + +#ifndef _GLIBCXX_CUCHAR +#define _GLIBCXX_CUCHAR 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include + +#if _GLIBCXX_USE_C11_UCHAR_CXX11 + +#include + +// Get rid of those macros defined in in lieu of real functions. +#undef mbrtoc16 +#undef c16rtomb +#undef mbrtoc32 +#undef c32rtomb + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using ::mbrtoc16; + using ::c16rtomb; + using ::mbrtoc32; + using ::c32rtomb; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // _GLIBCXX_USE_C11_UCHAR_CXX11 + +#endif // C++11 + +#endif // _GLIBCXX_CUCHAR diff --git a/resources/sources/avr-libstdcpp/include/cwchar b/resources/sources/avr-libstdcpp/include/cwchar new file mode 100644 index 000000000..21857fa2d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cwchar @@ -0,0 +1,306 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cwchar + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c wchar.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: 21.4 +// + +#pragma GCC system_header + +#include + +#if _GLIBCXX_HAVE_WCHAR_H +#include +#endif + +#ifndef _GLIBCXX_CWCHAR +#define _GLIBCXX_CWCHAR 1 + +// Need to do a bit of trickery here with mbstate_t as char_traits +// assumes it is in wchar.h, regardless of wchar_t specializations. +#ifndef _GLIBCXX_HAVE_MBSTATE_T +extern "C" +{ + typedef struct + { + int __fill[6]; + } mbstate_t; +} +#endif + +namespace std +{ + using ::mbstate_t; +} // namespace std + +// Get rid of those macros defined in in lieu of real functions. +#undef btowc +#undef fgetwc +#undef fgetws +#undef fputwc +#undef fputws +#undef fwide +#undef fwprintf +#undef fwscanf +#undef getwc +#undef getwchar +#undef mbrlen +#undef mbrtowc +#undef mbsinit +#undef mbsrtowcs +#undef putwc +#undef putwchar +#undef swprintf +#undef swscanf +#undef ungetwc +#undef vfwprintf +#if _GLIBCXX_HAVE_VFWSCANF +# undef vfwscanf +#endif +#undef vswprintf +#if _GLIBCXX_HAVE_VSWSCANF +# undef vswscanf +#endif +#undef vwprintf +#if _GLIBCXX_HAVE_VWSCANF +# undef vwscanf +#endif +#undef wcrtomb +#undef wcscat +#undef wcschr +#undef wcscmp +#undef wcscoll +#undef wcscpy +#undef wcscspn +#undef wcsftime +#undef wcslen +#undef wcsncat +#undef wcsncmp +#undef wcsncpy +#undef wcspbrk +#undef wcsrchr +#undef wcsrtombs +#undef wcsspn +#undef wcsstr +#undef wcstod +#if _GLIBCXX_HAVE_WCSTOF +# undef wcstof +#endif +#undef wcstok +#undef wcstol +#undef wcstoul +#undef wcsxfrm +#undef wctob +#undef wmemchr +#undef wmemcmp +#undef wmemcpy +#undef wmemmove +#undef wmemset +#undef wprintf +#undef wscanf + +#if _GLIBCXX_USE_WCHAR_T + +extern "C++" +{ +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using ::wint_t; + + using ::btowc; + using ::fgetwc; + using ::fgetws; + using ::fputwc; + using ::fputws; + using ::fwide; + using ::fwprintf; + using ::fwscanf; + using ::getwc; + using ::getwchar; + using ::mbrlen; + using ::mbrtowc; + using ::mbsinit; + using ::mbsrtowcs; + using ::putwc; + using ::putwchar; +#ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF + using ::swprintf; +#endif + using ::swscanf; + using ::ungetwc; + using ::vfwprintf; +#if _GLIBCXX_HAVE_VFWSCANF + using ::vfwscanf; +#endif +#ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF + using ::vswprintf; +#endif +#if _GLIBCXX_HAVE_VSWSCANF + using ::vswscanf; +#endif + using ::vwprintf; +#if _GLIBCXX_HAVE_VWSCANF + using ::vwscanf; +#endif + using ::wcrtomb; + using ::wcscat; + using ::wcscmp; + using ::wcscoll; + using ::wcscpy; + using ::wcscspn; + using ::wcsftime; + using ::wcslen; + using ::wcsncat; + using ::wcsncmp; + using ::wcsncpy; + using ::wcsrtombs; + using ::wcsspn; + using ::wcstod; +#if _GLIBCXX_HAVE_WCSTOF + using ::wcstof; +#endif + using ::wcstok; + using ::wcstol; + using ::wcstoul; + using ::wcsxfrm; + using ::wctob; + using ::wmemcmp; + using ::wmemcpy; + using ::wmemmove; + using ::wmemset; + using ::wprintf; + using ::wscanf; + using ::wcschr; + using ::wcspbrk; + using ::wcsrchr; + using ::wcsstr; + using ::wmemchr; + +#ifndef __CORRECT_ISO_CPP_WCHAR_H_PROTO + inline wchar_t* + wcschr(wchar_t* __p, wchar_t __c) + { return wcschr(const_cast(__p), __c); } + + inline wchar_t* + wcspbrk(wchar_t* __s1, const wchar_t* __s2) + { return wcspbrk(const_cast(__s1), __s2); } + + inline wchar_t* + wcsrchr(wchar_t* __p, wchar_t __c) + { return wcsrchr(const_cast(__p), __c); } + + inline wchar_t* + wcsstr(wchar_t* __s1, const wchar_t* __s2) + { return wcsstr(const_cast(__s1), __s2); } + + inline wchar_t* + wmemchr(wchar_t* __p, wchar_t __c, size_t __n) + { return wmemchr(const_cast(__p), __c, __n); } +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +} // extern "C++" + +#if _GLIBCXX_USE_C99_WCHAR + +#undef wcstold +#undef wcstoll +#undef wcstoull + +namespace __gnu_cxx +{ +#if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC + extern "C" long double + (wcstold)(const wchar_t * __restrict, wchar_t ** __restrict) throw (); +#endif +#if !_GLIBCXX_USE_C99_DYNAMIC + using ::wcstold; +#endif +#if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC + extern "C" long long int + (wcstoll)(const wchar_t * __restrict, wchar_t ** __restrict, int) throw (); + extern "C" unsigned long long int + (wcstoull)(const wchar_t * __restrict, wchar_t ** __restrict, int) throw (); +#endif +#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC + using ::wcstoll; + using ::wcstoull; +#endif +} // namespace __gnu_cxx + +namespace std +{ + using ::__gnu_cxx::wcstold; + using ::__gnu_cxx::wcstoll; + using ::__gnu_cxx::wcstoull; +} // namespace + +#endif + +#endif //_GLIBCXX_USE_WCHAR_T + +#if __cplusplus >= 201103L + +#ifdef _GLIBCXX_USE_WCHAR_T + +namespace std +{ +#if _GLIBCXX_HAVE_WCSTOF + using std::wcstof; +#endif +#if _GLIBCXX_HAVE_VFWSCANF + using std::vfwscanf; +#endif +#if _GLIBCXX_HAVE_VSWSCANF + using std::vswscanf; +#endif +#if _GLIBCXX_HAVE_VWSCANF + using std::vwscanf; +#endif + +#if _GLIBCXX_USE_C99_WCHAR + using std::wcstold; + using std::wcstoll; + using std::wcstoull; +#endif +} // namespace + +#endif // _GLIBCXX_USE_WCHAR_T + +#endif // C++11 + +#endif diff --git a/resources/sources/avr-libstdcpp/include/cwctype b/resources/sources/avr-libstdcpp/include/cwctype new file mode 100644 index 000000000..5190ce81a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/cwctype @@ -0,0 +1,110 @@ +// -*- C++ -*- forwarding header. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/cwctype + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + * + * This is the C++ version of the Standard C Library header @c wctype.h, + * and its contents are (mostly) the same as that header, but are all + * contained in the namespace @c std (except for names which are defined + * as macros in C). + */ + +// +// ISO C++ 14882: +// + +#pragma GCC system_header + +#include + +#if _GLIBCXX_HAVE_WCTYPE_H + +#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 10 +// Work around glibc BZ 9694 +#include +#endif + +#include +#endif // _GLIBCXX_HAVE_WCTYPE_H + +#ifndef _GLIBCXX_CWCTYPE +#define _GLIBCXX_CWCTYPE 1 + +// Get rid of those macros defined in in lieu of real functions. +#undef iswalnum +#undef iswalpha +#if _GLIBCXX_HAVE_ISWBLANK +# undef iswblank +#endif +#undef iswcntrl +#undef iswctype +#undef iswdigit +#undef iswgraph +#undef iswlower +#undef iswprint +#undef iswpunct +#undef iswspace +#undef iswupper +#undef iswxdigit +#undef towctrans +#undef towlower +#undef towupper +#undef wctrans +#undef wctype + +#if _GLIBCXX_USE_WCHAR_T + +namespace std +{ + using ::wctrans_t; + using ::wctype_t; + using ::wint_t; + + using ::iswalnum; + using ::iswalpha; +#if _GLIBCXX_HAVE_ISWBLANK + using ::iswblank; +#endif + using ::iswcntrl; + using ::iswctype; + using ::iswdigit; + using ::iswgraph; + using ::iswlower; + using ::iswprint; + using ::iswpunct; + using ::iswspace; + using ::iswupper; + using ::iswxdigit; + using ::towctrans; + using ::towlower; + using ::towupper; + using ::wctrans; + using ::wctype; +} // namespace + +#endif //_GLIBCXX_USE_WCHAR_T + +#endif // _GLIBCXX_CWCTYPE diff --git a/resources/sources/avr-libstdcpp/include/debug/assertions.h b/resources/sources/avr-libstdcpp/include/debug/assertions.h new file mode 100644 index 000000000..fb52e4414 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/debug/assertions.h @@ -0,0 +1,68 @@ +// Debugging support implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/assertions.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_ASSERTIONS_H +#define _GLIBCXX_DEBUG_ASSERTIONS_H 1 + +#ifndef _GLIBCXX_DEBUG + +# define _GLIBCXX_DEBUG_ASSERT(_Condition) +# define _GLIBCXX_DEBUG_PEDASSERT(_Condition) +# define _GLIBCXX_DEBUG_ONLY(_Statement) + +#endif + +#ifndef _GLIBCXX_ASSERTIONS +# define __glibcxx_requires_non_empty_range(_First,_Last) +# define __glibcxx_requires_nonempty() +# define __glibcxx_requires_subscript(_N) +#else + +// Verify that [_First, _Last) forms a non-empty iterator range. +# define __glibcxx_requires_non_empty_range(_First,_Last) \ + __glibcxx_assert(__builtin_expect(_First != _Last, true)) +# define __glibcxx_requires_subscript(_N) \ + __glibcxx_assert(__builtin_expect(_N < this->size(), true)) +// Verify that the container is nonempty +# define __glibcxx_requires_nonempty() \ + __glibcxx_assert(__builtin_expect(!this->empty(), true)) +#endif + +#ifdef _GLIBCXX_DEBUG +# define _GLIBCXX_DEBUG_ASSERT(_Condition) __glibcxx_assert(_Condition) + +# ifdef _GLIBCXX_DEBUG_PEDANTIC +# define _GLIBCXX_DEBUG_PEDASSERT(_Condition) _GLIBCXX_DEBUG_ASSERT(_Condition) +# else +# define _GLIBCXX_DEBUG_PEDASSERT(_Condition) +# endif + +# define _GLIBCXX_DEBUG_ONLY(_Statement) _Statement +#endif + +#endif // _GLIBCXX_DEBUG_ASSERTIONS diff --git a/resources/sources/avr-libstdcpp/include/debug/debug.h b/resources/sources/avr-libstdcpp/include/debug/debug.h new file mode 100644 index 000000000..5c858e1a8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/debug/debug.h @@ -0,0 +1,137 @@ +// Debugging support implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/debug.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_MACRO_SWITCH_H +#define _GLIBCXX_DEBUG_MACRO_SWITCH_H 1 + +/** Macros and namespaces used by the implementation outside of debug + * wrappers to verify certain properties. The __glibcxx_requires_xxx + * macros are merely wrappers around the __glibcxx_check_xxx wrappers + * when we are compiling with debug mode, but disappear when we are + * in release mode so that there is no checking performed in, e.g., + * the standard library algorithms. +*/ + +#include + +// Debug mode namespaces. + +/** + * @namespace std::__debug + * @brief GNU debug code, replaces standard behavior with debug behavior. + */ +namespace std +{ + namespace __debug { } +} + +/** @namespace __gnu_debug + * @brief GNU debug classes for public use. +*/ +namespace __gnu_debug +{ + using namespace std::__debug; + + template + struct _Safe_iterator; +} + +#ifndef _GLIBCXX_DEBUG + +# define __glibcxx_requires_cond(_Cond,_Msg) +# define __glibcxx_requires_valid_range(_First,_Last) +# define __glibcxx_requires_can_increment(_First,_Size) +# define __glibcxx_requires_can_increment_range(_First1,_Last1,_First2) +# define __glibcxx_requires_can_decrement_range(_First1,_Last1,_First2) +# define __glibcxx_requires_sorted(_First,_Last) +# define __glibcxx_requires_sorted_pred(_First,_Last,_Pred) +# define __glibcxx_requires_sorted_set(_First1,_Last1,_First2) +# define __glibcxx_requires_sorted_set_pred(_First1,_Last1,_First2,_Pred) +# define __glibcxx_requires_partitioned_lower(_First,_Last,_Value) +# define __glibcxx_requires_partitioned_upper(_First,_Last,_Value) +# define __glibcxx_requires_partitioned_lower_pred(_First,_Last,_Value,_Pred) +# define __glibcxx_requires_partitioned_upper_pred(_First,_Last,_Value,_Pred) +# define __glibcxx_requires_heap(_First,_Last) +# define __glibcxx_requires_heap_pred(_First,_Last,_Pred) +# define __glibcxx_requires_string(_String) +# define __glibcxx_requires_string_len(_String,_Len) +# define __glibcxx_requires_irreflexive(_First,_Last) +# define __glibcxx_requires_irreflexive2(_First,_Last) +# define __glibcxx_requires_irreflexive_pred(_First,_Last,_Pred) +# define __glibcxx_requires_irreflexive_pred2(_First,_Last,_Pred) + +#else + +# include + +# define __glibcxx_requires_cond(_Cond,_Msg) _GLIBCXX_DEBUG_VERIFY(_Cond,_Msg) +# define __glibcxx_requires_valid_range(_First,_Last) \ + __glibcxx_check_valid_range(_First,_Last) +# define __glibcxx_requires_can_increment(_First,_Size) \ + __glibcxx_check_can_increment(_First,_Size) +# define __glibcxx_requires_can_increment_range(_First1,_Last1,_First2) \ + __glibcxx_check_can_increment_range(_First1,_Last1,_First2) +# define __glibcxx_requires_can_decrement_range(_First1,_Last1,_First2) \ + __glibcxx_check_can_decrement_range(_First1,_Last1,_First2) +# define __glibcxx_requires_sorted(_First,_Last) \ + __glibcxx_check_sorted(_First,_Last) +# define __glibcxx_requires_sorted_pred(_First,_Last,_Pred) \ + __glibcxx_check_sorted_pred(_First,_Last,_Pred) +# define __glibcxx_requires_sorted_set(_First1,_Last1,_First2) \ + __glibcxx_check_sorted_set(_First1,_Last1,_First2) +# define __glibcxx_requires_sorted_set_pred(_First1,_Last1,_First2,_Pred) \ + __glibcxx_check_sorted_set_pred(_First1,_Last1,_First2,_Pred) +# define __glibcxx_requires_partitioned_lower(_First,_Last,_Value) \ + __glibcxx_check_partitioned_lower(_First,_Last,_Value) +# define __glibcxx_requires_partitioned_upper(_First,_Last,_Value) \ + __glibcxx_check_partitioned_upper(_First,_Last,_Value) +# define __glibcxx_requires_partitioned_lower_pred(_First,_Last,_Value,_Pred) \ + __glibcxx_check_partitioned_lower_pred(_First,_Last,_Value,_Pred) +# define __glibcxx_requires_partitioned_upper_pred(_First,_Last,_Value,_Pred) \ + __glibcxx_check_partitioned_upper_pred(_First,_Last,_Value,_Pred) +# define __glibcxx_requires_heap(_First,_Last) \ + __glibcxx_check_heap(_First,_Last) +# define __glibcxx_requires_heap_pred(_First,_Last,_Pred) \ + __glibcxx_check_heap_pred(_First,_Last,_Pred) +# define __glibcxx_requires_string(_String) __glibcxx_check_string(_String) +# define __glibcxx_requires_string_len(_String,_Len) \ + __glibcxx_check_string_len(_String,_Len) +# define __glibcxx_requires_irreflexive(_First,_Last) \ + __glibcxx_check_irreflexive(_First,_Last) +# define __glibcxx_requires_irreflexive2(_First,_Last) \ + __glibcxx_check_irreflexive2(_First,_Last) +# define __glibcxx_requires_irreflexive_pred(_First,_Last,_Pred) \ + __glibcxx_check_irreflexive_pred(_First,_Last,_Pred) +# define __glibcxx_requires_irreflexive_pred2(_First,_Last,_Pred) \ + __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred) + +# include + +#endif + +#endif // _GLIBCXX_DEBUG_MACRO_SWITCH_H diff --git a/resources/sources/avr-libstdcpp/include/debug/formatter.h b/resources/sources/avr-libstdcpp/include/debug/formatter.h new file mode 100644 index 000000000..bb9b3e565 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/debug/formatter.h @@ -0,0 +1,593 @@ +// Debug-mode error formatting implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/formatter.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_FORMATTER_H +#define _GLIBCXX_DEBUG_FORMATTER_H 1 + +#include + +#if __cpp_rtti +# include +# define _GLIBCXX_TYPEID(_Type) &typeid(_Type) +#else +namespace std +{ + class type_info; +} +# define _GLIBCXX_TYPEID(_Type) 0 +#endif + +#if __cplusplus >= 201103L +namespace __gnu_cxx +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +template + class __normal_iterator; + +_GLIBCXX_END_NAMESPACE_VERSION +} + +namespace std +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +template + class reverse_iterator; + +template + class move_iterator; + +_GLIBCXX_END_NAMESPACE_VERSION +} +#endif + +namespace __gnu_debug +{ + using std::type_info; + + template + bool __check_singular(const _Iterator&); + + class _Safe_sequence_base; + + template + class _Safe_iterator; + + template + class _Safe_local_iterator; + + template + class _Safe_sequence; + + enum _Debug_msg_id + { + // General checks + __msg_valid_range, + __msg_insert_singular, + __msg_insert_different, + __msg_erase_bad, + __msg_erase_different, + __msg_subscript_oob, + __msg_empty, + __msg_unpartitioned, + __msg_unpartitioned_pred, + __msg_unsorted, + __msg_unsorted_pred, + __msg_not_heap, + __msg_not_heap_pred, + // std::bitset checks + __msg_bad_bitset_write, + __msg_bad_bitset_read, + __msg_bad_bitset_flip, + // std::list checks + __msg_self_splice, + __msg_splice_alloc, + __msg_splice_bad, + __msg_splice_other, + __msg_splice_overlap, + // iterator checks + __msg_init_singular, + __msg_init_copy_singular, + __msg_init_const_singular, + __msg_copy_singular, + __msg_bad_deref, + __msg_bad_inc, + __msg_bad_dec, + __msg_iter_subscript_oob, + __msg_advance_oob, + __msg_retreat_oob, + __msg_iter_compare_bad, + __msg_compare_different, + __msg_iter_order_bad, + __msg_order_different, + __msg_distance_bad, + __msg_distance_different, + // istream_iterator + __msg_deref_istream, + __msg_inc_istream, + // ostream_iterator + __msg_output_ostream, + // istreambuf_iterator + __msg_deref_istreambuf, + __msg_inc_istreambuf, + // forward_list + __msg_insert_after_end, + __msg_erase_after_bad, + __msg_valid_range2, + // unordered container local iterators + __msg_local_iter_compare_bad, + __msg_non_empty_range, + // self move assign + __msg_self_move_assign, + // unordered container buckets + __msg_bucket_index_oob, + __msg_valid_load_factor, + // others + __msg_equal_allocs, + __msg_insert_range_from_self, + __msg_irreflexive_ordering + }; + + class _Error_formatter + { + // Tags denoting the type of parameter for construction + struct _Is_iterator { }; + struct _Is_iterator_value_type { }; + struct _Is_sequence { }; + struct _Is_instance { }; + + public: + /// Whether an iterator is constant, mutable, or unknown + enum _Constness + { + __unknown_constness, + __const_iterator, + __mutable_iterator, + __last_constness + }; + + // The state of the iterator (fine-grained), if we know it. + enum _Iterator_state + { + __unknown_state, + __singular, // singular, may still be attached to a sequence + __begin, // dereferenceable, and at the beginning + __middle, // dereferenceable, not at the beginning + __end, // past-the-end, may be at beginning if sequence empty + __before_begin, // before begin + __rbegin, // dereferenceable, and at the reverse-beginning + __rmiddle, // reverse-dereferenceable, not at the reverse-beginning + __rend, // reverse-past-the-end + __last_state + }; + + // A parameter that may be referenced by an error message + struct _Parameter + { + enum + { + __unused_param, + __iterator, + __sequence, + __integer, + __string, + __instance, + __iterator_value_type + } _M_kind; + + struct _Type + { + const char* _M_name; + const type_info* _M_type; + }; + + struct _Instance : _Type + { + const void* _M_address; + }; + + union + { + // When _M_kind == __iterator + struct : _Instance + { + _Constness _M_constness; + _Iterator_state _M_state; + const void* _M_sequence; + const type_info* _M_seq_type; + } _M_iterator; + + // When _M_kind == __sequence + _Instance _M_sequence; + + // When _M_kind == __integer + struct + { + const char* _M_name; + long _M_value; + } _M_integer; + + // When _M_kind == __string + struct + { + const char* _M_name; + const char* _M_value; + } _M_string; + + // When _M_kind == __instance + _Instance _M_instance; + + // When _M_kind == __iterator_value_type + _Type _M_iterator_value_type; + } _M_variant; + + _Parameter() : _M_kind(__unused_param), _M_variant() { } + + _Parameter(long __value, const char* __name) + : _M_kind(__integer), _M_variant() + { + _M_variant._M_integer._M_name = __name; + _M_variant._M_integer._M_value = __value; + } + + _Parameter(const char* __value, const char* __name) + : _M_kind(__string), _M_variant() + { + _M_variant._M_string._M_name = __name; + _M_variant._M_string._M_value = __value; + } + + template + _Parameter(_Safe_iterator<_Iterator, _Sequence, _Category> const& __it, + const char* __name, _Is_iterator) + : _M_kind(__iterator), _M_variant() + { + _M_variant._M_iterator._M_name = __name; + _M_variant._M_iterator._M_address = std::__addressof(__it); + _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(_Iterator); + _M_variant._M_iterator._M_constness = + __it._S_constant() ? __const_iterator : __mutable_iterator; + _M_variant._M_iterator._M_sequence = __it._M_get_sequence(); + _M_variant._M_iterator._M_seq_type = _GLIBCXX_TYPEID(_Sequence); + + if (__it._M_singular()) + _M_variant._M_iterator._M_state = __singular; + else + { + if (__it._M_is_before_begin()) + _M_variant._M_iterator._M_state = __before_begin; + else if (__it._M_is_end()) + _M_variant._M_iterator._M_state = __end; + else if (__it._M_is_begin()) + _M_variant._M_iterator._M_state = __begin; + else + _M_variant._M_iterator._M_state = __middle; + } + } + + template + _Parameter(_Safe_local_iterator<_Iterator, _Sequence> const& __it, + const char* __name, _Is_iterator) + : _M_kind(__iterator), _M_variant() + { + _M_variant._M_iterator._M_name = __name; + _M_variant._M_iterator._M_address = std::__addressof(__it); + _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(_Iterator); + _M_variant._M_iterator._M_constness = + __it._S_constant() ? __const_iterator : __mutable_iterator; + _M_variant._M_iterator._M_sequence = __it._M_get_sequence(); + _M_variant._M_iterator._M_seq_type = _GLIBCXX_TYPEID(_Sequence); + + if (__it._M_singular()) + _M_variant._M_iterator._M_state = __singular; + else + { + if (__it._M_is_end()) + _M_variant._M_iterator._M_state = __end; + else if (__it._M_is_begin()) + _M_variant._M_iterator._M_state = __begin; + else + _M_variant._M_iterator._M_state = __middle; + } + } + + template + _Parameter(const _Type* const& __it, const char* __name, _Is_iterator) + : _M_kind(__iterator), _M_variant() + { + _M_variant._M_iterator._M_name = __name; + _M_variant._M_iterator._M_address = std::__addressof(__it); + _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); + _M_variant._M_iterator._M_constness = __const_iterator; + _M_variant._M_iterator._M_state = __it ? __unknown_state : __singular; + _M_variant._M_iterator._M_sequence = 0; + _M_variant._M_iterator._M_seq_type = 0; + } + + template + _Parameter(_Type* const& __it, const char* __name, _Is_iterator) + : _M_kind(__iterator), _M_variant() + { + _M_variant._M_iterator._M_name = __name; + _M_variant._M_iterator._M_address = std::__addressof(__it); + _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); + _M_variant._M_iterator._M_constness = __mutable_iterator; + _M_variant._M_iterator._M_state = __it ? __unknown_state : __singular; + _M_variant._M_iterator._M_sequence = 0; + _M_variant._M_iterator._M_seq_type = 0; + } + + template + _Parameter(_Iterator const& __it, const char* __name, _Is_iterator) + : _M_kind(__iterator), _M_variant() + { + _M_variant._M_iterator._M_name = __name; + _M_variant._M_iterator._M_address = std::__addressof(__it); + _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); + _M_variant._M_iterator._M_constness = __unknown_constness; + _M_variant._M_iterator._M_state = + __gnu_debug::__check_singular(__it) ? __singular : __unknown_state; + _M_variant._M_iterator._M_sequence = 0; + _M_variant._M_iterator._M_seq_type = 0; + } + +#if __cplusplus >= 201103L + // The following constructors are only defined in C++11 to take + // advantage of the constructor delegation feature. + template + _Parameter( + __gnu_cxx::__normal_iterator<_Iterator, _Container> const& __it, + const char* __name, _Is_iterator) + : _Parameter(__it.base(), __name, _Is_iterator{}) + { _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); } + + template + _Parameter(std::reverse_iterator<_Iterator> const& __it, + const char* __name, _Is_iterator) + : _Parameter(__it.base(), __name, _Is_iterator{}) + { + _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); + _M_variant._M_iterator._M_state + = _S_reverse_state(_M_variant._M_iterator._M_state); + } + + template + _Parameter(std::reverse_iterator<_Safe_iterator<_Iterator, _Sequence, + _Category>> const& __it, + const char* __name, _Is_iterator) + : _Parameter(__it.base(), __name, _Is_iterator{}) + { + _M_variant._M_iterator._M_type + = _GLIBCXX_TYPEID(std::reverse_iterator<_Iterator>); + _M_variant._M_iterator._M_state + = _S_reverse_state(_M_variant._M_iterator._M_state); + } + + template + _Parameter(std::move_iterator<_Iterator> const& __it, + const char* __name, _Is_iterator) + : _Parameter(__it.base(), __name, _Is_iterator{}) + { _M_variant._M_iterator._M_type = _GLIBCXX_TYPEID(__it); } + + template + _Parameter(std::move_iterator<_Safe_iterator<_Iterator, _Sequence, + _Category>> const& __it, + const char* __name, _Is_iterator) + : _Parameter(__it.base(), __name, _Is_iterator{}) + { + _M_variant._M_iterator._M_type + = _GLIBCXX_TYPEID(std::move_iterator<_Iterator>); + } + + private: + _Iterator_state + _S_reverse_state(_Iterator_state __state) + { + switch (__state) + { + case __begin: + return __rend; + case __middle: + return __rmiddle; + case __end: + return __rbegin; + default: + return __state; + } + } + + public: +#endif + + template + _Parameter(const _Safe_sequence<_Sequence>& __seq, + const char* __name, _Is_sequence) + : _M_kind(__sequence), _M_variant() + { + _M_variant._M_sequence._M_name = __name; + _M_variant._M_sequence._M_address = + static_cast(std::__addressof(__seq)); + _M_variant._M_sequence._M_type = _GLIBCXX_TYPEID(_Sequence); + } + + template + _Parameter(const _Sequence& __seq, const char* __name, _Is_sequence) + : _M_kind(__sequence), _M_variant() + { + _M_variant._M_sequence._M_name = __name; + _M_variant._M_sequence._M_address = std::__addressof(__seq); + _M_variant._M_sequence._M_type = _GLIBCXX_TYPEID(_Sequence); + } + + template + _Parameter(const _Iterator& __it, const char* __name, + _Is_iterator_value_type) + : _M_kind(__iterator_value_type), _M_variant() + { + _M_variant._M_iterator_value_type._M_name = __name; + _M_variant._M_iterator_value_type._M_type = + _GLIBCXX_TYPEID(typename std::iterator_traits<_Iterator>::value_type); + } + + template + _Parameter(const _Type& __inst, const char* __name, _Is_instance) + : _M_kind(__instance), _M_variant() + { + _M_variant._M_instance._M_name = __name; + _M_variant._M_instance._M_address = &__inst; + _M_variant._M_instance._M_type = _GLIBCXX_TYPEID(_Type); + } + +#if !_GLIBCXX_INLINE_VERSION + void + _M_print_field(const _Error_formatter* __formatter, + const char* __name) const _GLIBCXX_DEPRECATED; + + void + _M_print_description(const _Error_formatter* __formatter) + const _GLIBCXX_DEPRECATED; +#endif + }; + + template + _Error_formatter& + _M_iterator(const _Iterator& __it, const char* __name = 0) + { + if (_M_num_parameters < std::size_t(__max_parameters)) + _M_parameters[_M_num_parameters++] = _Parameter(__it, __name, + _Is_iterator()); + return *this; + } + + template + _Error_formatter& + _M_iterator_value_type(const _Iterator& __it, + const char* __name = 0) + { + if (_M_num_parameters < __max_parameters) + _M_parameters[_M_num_parameters++] = + _Parameter(__it, __name, _Is_iterator_value_type()); + return *this; + } + + _Error_formatter& + _M_integer(long __value, const char* __name = 0) + { + if (_M_num_parameters < __max_parameters) + _M_parameters[_M_num_parameters++] = _Parameter(__value, __name); + return *this; + } + + _Error_formatter& + _M_string(const char* __value, const char* __name = 0) + { + if (_M_num_parameters < __max_parameters) + _M_parameters[_M_num_parameters++] = _Parameter(__value, __name); + return *this; + } + + template + _Error_formatter& + _M_sequence(const _Sequence& __seq, const char* __name = 0) + { + if (_M_num_parameters < __max_parameters) + _M_parameters[_M_num_parameters++] = _Parameter(__seq, __name, + _Is_sequence()); + return *this; + } + + template + _Error_formatter& + _M_instance(const _Type& __inst, const char* __name = 0) + { + if (_M_num_parameters < __max_parameters) + _M_parameters[_M_num_parameters++] = _Parameter(__inst, __name, + _Is_instance()); + return *this; + } + + _Error_formatter& + _M_message(const char* __text) + { _M_text = __text; return *this; } + + // Kept const qualifier for backward compatibility, to keep the same + // exported symbol. + _Error_formatter& + _M_message(_Debug_msg_id __id) const throw (); + + _GLIBCXX_NORETURN void + _M_error() const; + +#if !_GLIBCXX_INLINE_VERSION + template + void + _M_format_word(char*, int, const char*, _Tp) + const throw () _GLIBCXX_DEPRECATED; + + void + _M_print_word(const char* __word) const _GLIBCXX_DEPRECATED; + + void + _M_print_string(const char* __string) const _GLIBCXX_DEPRECATED; +#endif + + private: + _Error_formatter(const char* __file, unsigned int __line, + const char* __function) + : _M_file(__file), _M_line(__line), _M_num_parameters(0), _M_text(0) + , _M_function(__function) + { } + +#if !_GLIBCXX_INLINE_VERSION + void + _M_get_max_length() const throw () _GLIBCXX_DEPRECATED; +#endif + + enum { __max_parameters = 9 }; + + const char* _M_file; + unsigned int _M_line; + _Parameter _M_parameters[__max_parameters]; + unsigned int _M_num_parameters; + const char* _M_text; + const char* _M_function; + + public: + static _Error_formatter& + _S_at(const char* __file, unsigned int __line, const char* __function) + { + static _Error_formatter __formatter(__file, __line, __function); + return __formatter; + } + }; +} // namespace __gnu_debug + +#undef _GLIBCXX_TYPEID + +#endif diff --git a/resources/sources/avr-libstdcpp/include/debug/functions.h b/resources/sources/avr-libstdcpp/include/debug/functions.h new file mode 100644 index 000000000..aaccc8dfe --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/debug/functions.h @@ -0,0 +1,470 @@ +// Debugging support implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/functions.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_FUNCTIONS_H +#define _GLIBCXX_DEBUG_FUNCTIONS_H 1 + +#include // for less + +#if __cplusplus >= 201103L +# include // for __miter_base +# include // for is_lvalue_reference and conditional. +#endif + +#include +#include + +namespace __gnu_debug +{ + template + struct _Insert_range_from_self_is_safe + { enum { __value = 0 }; }; + + template + struct _Is_contiguous_sequence : std::__false_type { }; + + /* Checks that [first, last) is a valid range, and then returns + * __first. This routine is useful when we can't use a separate + * assertion statement because, e.g., we are in a constructor. + */ + template + inline _InputIterator + __check_valid_range(const _InputIterator& __first, + const _InputIterator& __last, + const char* __file, + unsigned int __line, + const char* __function) + { + __glibcxx_check_valid_range_at(__first, __last, + __file, __line, __function); + return __first; + } + + /* Handle the case where __other is a pointer to _Sequence::value_type. */ + template + inline bool + __foreign_iterator_aux4( + const _Safe_iterator<_Iterator, _Sequence, _Category>& __it, + const typename _Sequence::value_type* __other) + { + typedef const typename _Sequence::value_type* _PointerType; + typedef std::less<_PointerType> _Less; +#if __cplusplus >= 201103L + constexpr _Less __l{}; +#else + const _Less __l = _Less(); +#endif + const _Sequence* __seq = __it._M_get_sequence(); + const _PointerType __begin = std::__addressof(*__seq->_M_base().begin()); + const _PointerType __end = std::__addressof(*(__seq->_M_base().end()-1)); + + // Check whether __other points within the contiguous storage. + return __l(__other, __begin) || __l(__end, __other); + } + + /* Fallback overload for when we can't tell, assume it is valid. */ + template + inline bool + __foreign_iterator_aux4( + const _Safe_iterator<_Iterator, _Sequence, _Category>&, ...) + { return true; } + + /* Handle sequences with contiguous storage */ + template + inline bool + __foreign_iterator_aux3( + const _Safe_iterator<_Iterator, _Sequence, _Category>& __it, + const _InputIterator& __other, const _InputIterator& __other_end, + std::__true_type) + { + if (__other == __other_end) + return true; // inserting nothing is safe even if not foreign iters + if (__it._M_get_sequence()->empty()) + return true; // can't be self-inserting if self is empty + return __foreign_iterator_aux4(__it, std::__addressof(*__other)); + } + + /* Handle non-contiguous containers, assume it is valid. */ + template + inline bool + __foreign_iterator_aux3( + const _Safe_iterator<_Iterator, _Sequence, _Category>&, + const _InputIterator&, const _InputIterator&, + std::__false_type) + { return true; } + + /** Handle debug iterators from the same type of container. */ + template + inline bool + __foreign_iterator_aux2( + const _Safe_iterator<_Iterator, _Sequence, _Category>& __it, + const _Safe_iterator<_OtherIterator, _Sequence, _Category>& __other, + const _Safe_iterator<_OtherIterator, _Sequence, _Category>&) + { return __it._M_get_sequence() != __other._M_get_sequence(); } + + /** Handle debug iterators from different types of container. */ + template + inline bool + __foreign_iterator_aux2( + const _Safe_iterator<_Iterator, _Sequence, _Category>&, + const _Safe_iterator<_OtherIterator, _OtherSequence, + _OtherCategory>&, + const _Safe_iterator<_OtherIterator, _OtherSequence, + _OtherCategory>&) + { return true; } + + /* Handle non-debug iterators. */ + template + inline bool + __foreign_iterator_aux2( + const _Safe_iterator<_Iterator, _Sequence, _Category>& __it, + const _InputIterator& __other, + const _InputIterator& __other_end) + { +#if __cplusplus < 201103L + typedef _Is_contiguous_sequence<_Sequence> __tag; +#else + using __lvalref = std::is_lvalue_reference< + typename std::iterator_traits<_InputIterator>::reference>; + using __contiguous = _Is_contiguous_sequence<_Sequence>; + using __tag = typename std::conditional<__lvalref::value, __contiguous, + std::__false_type>::type; +#endif + return __foreign_iterator_aux3(__it, __other, __other_end, __tag()); + } + + /* Handle the case where we aren't really inserting a range after all */ + template + inline bool + __foreign_iterator_aux( + const _Safe_iterator<_Iterator, _Sequence, _Category>&, + _Integral, _Integral, std::__true_type) + { return true; } + + /* Handle all iterators. */ + template + inline bool + __foreign_iterator_aux( + const _Safe_iterator<_Iterator, _Sequence, _Category>& __it, + _InputIterator __other, _InputIterator __other_end, + std::__false_type) + { + return _Insert_range_from_self_is_safe<_Sequence>::__value + || __foreign_iterator_aux2(__it, std::__miter_base(__other), + std::__miter_base(__other_end)); + } + + template + inline bool + __foreign_iterator( + const _Safe_iterator<_Iterator, _Sequence, _Category>& __it, + _InputIterator __other, _InputIterator __other_end) + { + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + return __foreign_iterator_aux(__it, __other, __other_end, _Integral()); + } + + // Can't check if an input iterator sequence is sorted, because we + // can't step through the sequence. + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_aux(const _InputIterator&, const _InputIterator&, + std::input_iterator_tag) + { return true; } + + // Can verify if a forward iterator sequence is in fact sorted using + // std::__is_sorted + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_aux(_ForwardIterator __first, _ForwardIterator __last, + std::forward_iterator_tag) + { + if (__first == __last) + return true; + + _ForwardIterator __next = __first; + for (++__next; __next != __last; __first = __next, (void)++__next) + if (*__next < *__first) + return false; + + return true; + } + + // Can't check if an input iterator sequence is sorted, because we can't step + // through the sequence. + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_aux(const _InputIterator&, const _InputIterator&, + _Predicate, std::input_iterator_tag) + { return true; } + + // Can verify if a forward iterator sequence is in fact sorted using + // std::__is_sorted + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_aux(_ForwardIterator __first, _ForwardIterator __last, + _Predicate __pred, std::forward_iterator_tag) + { + if (__first == __last) + return true; + + _ForwardIterator __next = __first; + for (++__next; __next != __last; __first = __next, (void)++__next) + if (__pred(*__next, *__first)) + return false; + + return true; + } + + // Determine if a sequence is sorted. + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted(const _InputIterator& __first, const _InputIterator& __last) + { + return __check_sorted_aux(__first, __last, + std::__iterator_category(__first)); + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted(const _InputIterator& __first, const _InputIterator& __last, + _Predicate __pred) + { + return __check_sorted_aux(__first, __last, __pred, + std::__iterator_category(__first)); + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_set_aux(const _InputIterator& __first, + const _InputIterator& __last, + std::__true_type) + { return __check_sorted(__first, __last); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_set_aux(const _InputIterator&, + const _InputIterator&, + std::__false_type) + { return true; } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_set_aux(const _InputIterator& __first, + const _InputIterator& __last, + _Predicate __pred, std::__true_type) + { return __check_sorted(__first, __last, __pred); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_set_aux(const _InputIterator&, + const _InputIterator&, _Predicate, + std::__false_type) + { return true; } + + // ... special variant used in std::merge, std::includes, std::set_*. + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_set(const _InputIterator1& __first, + const _InputIterator1& __last, + const _InputIterator2&) + { + typedef typename std::iterator_traits<_InputIterator1>::value_type + _ValueType1; + typedef typename std::iterator_traits<_InputIterator2>::value_type + _ValueType2; + + typedef typename std::__are_same<_ValueType1, _ValueType2>::__type + _SameType; + return __check_sorted_set_aux(__first, __last, _SameType()); + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_sorted_set(const _InputIterator1& __first, + const _InputIterator1& __last, + const _InputIterator2&, _Predicate __pred) + { + typedef typename std::iterator_traits<_InputIterator1>::value_type + _ValueType1; + typedef typename std::iterator_traits<_InputIterator2>::value_type + _ValueType2; + + typedef typename std::__are_same<_ValueType1, _ValueType2>::__type + _SameType; + return __check_sorted_set_aux(__first, __last, __pred, _SameType()); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 270. Binary search requirements overly strict + // Determine if a sequence is partitioned w.r.t. this element. + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_partitioned_lower(_ForwardIterator __first, + _ForwardIterator __last, const _Tp& __value) + { + while (__first != __last && *__first < __value) + ++__first; + if (__first != __last) + { + ++__first; + while (__first != __last && !(*__first < __value)) + ++__first; + } + return __first == __last; + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_partitioned_upper(_ForwardIterator __first, + _ForwardIterator __last, const _Tp& __value) + { + while (__first != __last && !(__value < *__first)) + ++__first; + if (__first != __last) + { + ++__first; + while (__first != __last && __value < *__first) + ++__first; + } + return __first == __last; + } + + // Determine if a sequence is partitioned w.r.t. this element. + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_partitioned_lower(_ForwardIterator __first, + _ForwardIterator __last, const _Tp& __value, + _Pred __pred) + { + while (__first != __last && bool(__pred(*__first, __value))) + ++__first; + if (__first != __last) + { + ++__first; + while (__first != __last && !bool(__pred(*__first, __value))) + ++__first; + } + return __first == __last; + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __check_partitioned_upper(_ForwardIterator __first, + _ForwardIterator __last, const _Tp& __value, + _Pred __pred) + { + while (__first != __last && !bool(__pred(__value, *__first))) + ++__first; + if (__first != __last) + { + ++__first; + while (__first != __last && bool(__pred(__value, *__first))) + ++__first; + } + return __first == __last; + } + +#if __cplusplus >= 201103L + struct _Irreflexive_checker + { + template + static typename std::iterator_traits<_It>::reference + __deref(); + + template() < __deref<_It>())> + _GLIBCXX20_CONSTEXPR + static bool + _S_is_valid(_It __it) + { return !(*__it < *__it); } + + // Fallback method if operator doesn't exist. + template + _GLIBCXX20_CONSTEXPR + static bool + _S_is_valid(_Args...) + { return true; } + + template()(__deref<_It>(), __deref<_It>()))> + _GLIBCXX20_CONSTEXPR + static bool + _S_is_valid_pred(_It __it, _Pred __pred) + { return !__pred(*__it, *__it); } + + // Fallback method if predicate can't be invoked. + template + _GLIBCXX20_CONSTEXPR + static bool + _S_is_valid_pred(_Args...) + { return true; } + }; + + template + _GLIBCXX20_CONSTEXPR + inline bool + __is_irreflexive(_Iterator __it) + { return _Irreflexive_checker::_S_is_valid(__it); } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __is_irreflexive_pred(_Iterator __it, _Pred __pred) + { return _Irreflexive_checker::_S_is_valid_pred(__it, __pred); } +#endif + +} // namespace __gnu_debug + +#endif diff --git a/resources/sources/avr-libstdcpp/include/debug/helper_functions.h b/resources/sources/avr-libstdcpp/include/debug/helper_functions.h new file mode 100644 index 000000000..62d530925 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/debug/helper_functions.h @@ -0,0 +1,315 @@ +// Debugging support implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/helper_functions.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_HELPER_FUNCTIONS_H +#define _GLIBCXX_DEBUG_HELPER_FUNCTIONS_H 1 + +#include // for __addressof +#include // for iterator_traits, + // categories and _Iter_base +#include // for __is_integer + +#include // for pair + +namespace __gnu_debug +{ + template + class _Safe_iterator; + +#if __cplusplus >= 201103L + template + class _Safe_local_iterator; +#endif + + /** The precision to which we can calculate the distance between + * two iterators. + */ + enum _Distance_precision + { + __dp_none, // Not even an iterator type + __dp_equality, //< Can compare iterator equality, only + __dp_sign, //< Can determine equality and ordering + __dp_sign_max_size, //< __dp_sign and gives max range size + __dp_exact //< Can determine distance precisely + }; + + template::__type> + struct _Distance_traits + { + private: + typedef + typename std::iterator_traits<_Iterator>::difference_type _ItDiffType; + + template::__type> + struct _DiffTraits + { typedef _DiffType __type; }; + + template + struct _DiffTraits<_DiffType, std::__true_type> + { typedef std::ptrdiff_t __type; }; + + typedef typename _DiffTraits<_ItDiffType>::__type _DiffType; + + public: + typedef std::pair<_DiffType, _Distance_precision> __type; + }; + + template + struct _Distance_traits<_Integral, std::__true_type> + { typedef std::pair __type; }; + + /** Determine the distance between two iterators with some known + * precision. + */ + template + _GLIBCXX_CONSTEXPR + inline typename _Distance_traits<_Iterator>::__type + __get_distance(_Iterator __lhs, _Iterator __rhs, + std::random_access_iterator_tag) + { return std::make_pair(__rhs - __lhs, __dp_exact); } + + template + _GLIBCXX14_CONSTEXPR + inline typename _Distance_traits<_Iterator>::__type + __get_distance(_Iterator __lhs, _Iterator __rhs, + std::input_iterator_tag) + { + if (__lhs == __rhs) + return std::make_pair(0, __dp_exact); + + return std::make_pair(1, __dp_equality); + } + + template + _GLIBCXX_CONSTEXPR + inline typename _Distance_traits<_Iterator>::__type + __get_distance(_Iterator __lhs, _Iterator __rhs) + { return __get_distance(__lhs, __rhs, std::__iterator_category(__lhs)); } + + // An arbitrary iterator pointer is not singular. + inline bool + __check_singular_aux(const void*) { return false; } + + // We may have an iterator that derives from _Safe_iterator_base but isn't + // a _Safe_iterator. + template + inline bool + __check_singular(_Iterator const& __x) + { return __check_singular_aux(std::__addressof(__x)); } + + /** Non-NULL pointers are nonsingular. */ + template + inline bool + __check_singular(_Tp* const& __ptr) + { return __ptr == 0; } + + /** We say that integral types for a valid range, and defer to other + * routines to realize what to do with integral types instead of + * iterators. + */ + template + _GLIBCXX_CONSTEXPR + inline bool + __valid_range_aux(_Integral, _Integral, std::__true_type) + { return true; } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __valid_range_aux(_Integral, _Integral, + typename _Distance_traits<_Integral>::__type& __dist, + std::__true_type) + { + __dist = std::make_pair(0, __dp_none); + return true; + } + + template + _GLIBCXX_CONSTEXPR + inline bool + __valid_range_aux(_InputIterator __first, _InputIterator __last, + std::input_iterator_tag) + { + return __first == __last + || (!__check_singular(__first) && !__check_singular(__last)); + } + + template + _GLIBCXX_CONSTEXPR + inline bool + __valid_range_aux(_InputIterator __first, _InputIterator __last, + std::random_access_iterator_tag) + { + return + __valid_range_aux(__first, __last, std::input_iterator_tag()) + && __first <= __last; + } + + /** We have iterators, so figure out what kind of iterators they are + * to see if we can check the range ahead of time. + */ + template + _GLIBCXX_CONSTEXPR + inline bool + __valid_range_aux(_InputIterator __first, _InputIterator __last, + std::__false_type) + { + return __valid_range_aux(__first, __last, + std::__iterator_category(__first)); + } + + template + _GLIBCXX20_CONSTEXPR + inline bool + __valid_range_aux(_InputIterator __first, _InputIterator __last, + typename _Distance_traits<_InputIterator>::__type& __dist, + std::__false_type) + { + if (!__valid_range_aux(__first, __last, std::input_iterator_tag())) + return false; + + __dist = __get_distance(__first, __last); + switch (__dist.second) + { + case __dp_none: + break; + case __dp_equality: + if (__dist.first == 0) + return true; + break; + case __dp_sign: + case __dp_sign_max_size: + case __dp_exact: + return __dist.first >= 0; + } + + // Can't tell so assume it is fine. + return true; + } + + /** Don't know what these iterators are, or if they are even + * iterators (we may get an integral type for InputIterator), so + * see if they are integral and pass them on to the next phase + * otherwise. + */ + template + _GLIBCXX20_CONSTEXPR + inline bool + __valid_range(_InputIterator __first, _InputIterator __last, + typename _Distance_traits<_InputIterator>::__type& __dist) + { +#ifdef __cpp_lib_is_constant_evaluated + if (std::is_constant_evaluated()) + // Detected by the compiler directly. + return true; +#endif + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + return __valid_range_aux(__first, __last, __dist, _Integral()); + } + + template + bool + __valid_range(const _Safe_iterator<_Iterator, _Sequence, _Category>&, + const _Safe_iterator<_Iterator, _Sequence, _Category>&, + typename _Distance_traits<_Iterator>::__type&); + +#if __cplusplus >= 201103L + template + bool + __valid_range(const _Safe_local_iterator<_Iterator, _Sequence>&, + const _Safe_local_iterator<_Iterator, _Sequence>&, + typename _Distance_traits<_Iterator>::__type&); +#endif + + template + _GLIBCXX14_CONSTEXPR + inline bool + __valid_range(_InputIterator __first, _InputIterator __last) + { +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + if (__builtin_is_constant_evaluated()) + // Detected by the compiler directly. + return true; +#endif + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + return __valid_range_aux(__first, __last, _Integral()); + } + + template + bool + __valid_range(const _Safe_iterator<_Iterator, _Sequence, _Category>&, + const _Safe_iterator<_Iterator, _Sequence, _Category>&); + +#if __cplusplus >= 201103L + template + bool + __valid_range(const _Safe_local_iterator<_Iterator, _Sequence>&, + const _Safe_local_iterator<_Iterator, _Sequence>&); +#endif + + // Fallback method, always ok. + template + _GLIBCXX_CONSTEXPR + inline bool + __can_advance(_InputIterator, _Size) + { return true; } + + template + bool + __can_advance(const _Safe_iterator<_Iterator, _Sequence, _Category>&, + _Size); + + /** Helper function to extract base iterator of random access safe iterator + * in order to reduce performance impact of debug mode. Limited to random + * access iterator because it is the only category for which it is possible + * to check for correct iterators order in the __valid_range function + * thanks to the < operator. + */ + template + _GLIBCXX_CONSTEXPR + inline _Iterator + __base(_Iterator __it) + { return __it; } + +#if __cplusplus < 201103L + template + struct _Unsafe_type + { typedef _Iterator _Type; }; +#endif + + /* Remove debug mode safe iterator layer, if any. */ + template + inline _Iterator + __unsafe(_Iterator __it) + { return __it; } +} + +#endif diff --git a/resources/sources/avr-libstdcpp/include/debug/macros.h b/resources/sources/avr-libstdcpp/include/debug/macros.h new file mode 100644 index 000000000..73fb50d0c --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/debug/macros.h @@ -0,0 +1,471 @@ +// Debugging support implementation -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file debug/macros.h + * This file is a GNU debug extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_DEBUG_MACROS_H +#define _GLIBCXX_DEBUG_MACROS_H 1 + +/** + * Macros used by the implementation to verify certain + * properties. These macros may only be used directly by the debug + * wrappers. Note that these are macros (instead of the more obviously + * @a correct choice of making them functions) because we need line and + * file information at the call site, to minimize the distance between + * the user error and where the error is reported. + * + */ +#if 0 /* defined _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED */ +# define _GLIBCXX_DEBUG_VERIFY_COND_AT(_Cond,_ErrMsg,_File,_Line,_Func) \ + if (__builtin_is_constant_evaluated()) \ + /* FIXME: Compilation error here when !_Cond. */ \ + break; \ + if (! (_Cond)) \ + __gnu_debug::_Error_formatter::_S_at(_File, _Line, _Func) \ + ._ErrMsg._M_error() +#else +# define _GLIBCXX_DEBUG_VERIFY_COND_AT(_Cond,_ErrMsg,_File,_Line,_Func) \ + if (! (_Cond)) \ + __gnu_debug::_Error_formatter::_S_at(_File, _Line, _Func) \ + ._ErrMsg._M_error() +#endif + +#define _GLIBCXX_DEBUG_VERIFY_AT_F(_Cond,_ErrMsg,_File,_Line,_Func) \ + do \ + { \ + _GLIBCXX_DEBUG_VERIFY_COND_AT(_Cond,_ErrMsg,_File,_Line,_Func); \ + } while (false) + +#define _GLIBCXX_DEBUG_VERIFY_AT(_Cond,_ErrMsg,_File,_Line) \ + _GLIBCXX_DEBUG_VERIFY_AT_F(_Cond,_ErrMsg,_File,_Line,__PRETTY_FUNCTION__) + +#define _GLIBCXX_DEBUG_VERIFY(_Cond,_ErrMsg) \ + _GLIBCXX_DEBUG_VERIFY_AT_F(_Cond, _ErrMsg, __FILE__, __LINE__, \ + __PRETTY_FUNCTION__) + +// Verify that [_First, _Last) forms a valid iterator range. +#define __glibcxx_check_valid_range(_First,_Last) \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__valid_range(_First, _Last), \ + _M_message(__gnu_debug::__msg_valid_range) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) + +#define __glibcxx_check_valid_range_at(_First,_Last,_File,_Line,_Func) \ +_GLIBCXX_DEBUG_VERIFY_AT_F(__gnu_debug::__valid_range(_First, _Last), \ + _M_message(__gnu_debug::__msg_valid_range) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last), \ + _File,_Line,_Func) + +#define __glibcxx_check_valid_range2(_First,_Last,_Dist) \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__valid_range(_First, _Last, _Dist), \ + _M_message(__gnu_debug::__msg_valid_range) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) + +#define __glibcxx_check_valid_constructor_range(_First,_Last) \ + __gnu_debug::__check_valid_range(_First, _Last, \ + __FILE__, __LINE__, __PRETTY_FUNCTION__) + +// Verify that [_First, _Last) forms a non-empty iterator range. +#define __glibcxx_check_non_empty_range(_First,_Last) \ +_GLIBCXX_DEBUG_VERIFY(_First != _Last, \ + _M_message(__gnu_debug::__msg_non_empty_range) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) + +// Verify that [_First, _First + _Size) forms a valid range. +#define __glibcxx_check_can_increment(_First,_Size) \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__can_advance(_First, _Size), \ + _M_message(__gnu_debug::__msg_iter_subscript_oob) \ + ._M_iterator(_First, #_First) \ + ._M_integer(_Size, #_Size)) + +#define __glibcxx_check_can_increment_range(_First1,_Last1,_First2) \ + do \ + { \ + typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\ + _GLIBCXX_DEBUG_VERIFY_COND_AT( \ + __gnu_debug::__valid_range(_First1, _Last1, __dist),\ + _M_message(__gnu_debug::__msg_valid_range) \ + ._M_iterator(_First1, #_First1) \ + ._M_iterator(_Last1, #_Last1), \ + __FILE__,__LINE__,__PRETTY_FUNCTION__); \ + _GLIBCXX_DEBUG_VERIFY_COND_AT( \ + __gnu_debug::__can_advance(_First2, __dist.first),\ + _M_message(__gnu_debug::__msg_iter_subscript_oob)\ + ._M_iterator(_First2, #_First2) \ + ._M_integer(__dist.first), \ + __FILE__,__LINE__,__PRETTY_FUNCTION__); \ + } while(false) + +#define __glibcxx_check_can_decrement_range(_First1,_Last1,_First2) \ + do \ + { \ + typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\ + _GLIBCXX_DEBUG_VERIFY_COND_AT( \ + __gnu_debug::__valid_range(_First1, _Last1, __dist),\ + _M_message(__gnu_debug::__msg_valid_range) \ + ._M_iterator(_First1, #_First1) \ + ._M_iterator(_Last1, #_Last1), \ + __FILE__,__LINE__,__PRETTY_FUNCTION__); \ + _GLIBCXX_DEBUG_VERIFY_COND_AT( \ + __gnu_debug::__can_advance(_First2, -__dist.first),\ + _M_message(__gnu_debug::__msg_iter_subscript_oob)\ + ._M_iterator(_First2, #_First2) \ + ._M_integer(-__dist.first), \ + __FILE__,__LINE__,__PRETTY_FUNCTION__); \ + } while(false) + +/** Verify that we can insert into *this with the iterator _Position. + * Insertion into a container at a specific position requires that + * the iterator be nonsingular, either dereferenceable or past-the-end, + * and that it reference the sequence we are inserting into. Note that + * this macro is only valid when the container is a_Safe_sequence and + * the iterator is a _Safe_iterator. +*/ +#define __glibcxx_check_insert(_Position) \ +_GLIBCXX_DEBUG_VERIFY(!_Position._M_singular(), \ + _M_message(__gnu_debug::__msg_insert_singular) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)); \ +_GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this), \ + _M_message(__gnu_debug::__msg_insert_different) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)) + +/** Verify that we can insert into *this after the iterator _Position. + * Insertion into a container after a specific position requires that + * the iterator be nonsingular, either dereferenceable or before-begin, + * and that it reference the sequence we are inserting into. Note that + * this macro is only valid when the container is a_Safe_sequence and + * the iterator is a _Safe_iterator. +*/ +#define __glibcxx_check_insert_after(_Position) \ +__glibcxx_check_insert(_Position); \ +_GLIBCXX_DEBUG_VERIFY(!_Position._M_is_end(), \ + _M_message(__gnu_debug::__msg_insert_after_end) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)) + +/** Verify that we can insert the values in the iterator range + * [_First, _Last) into *this with the iterator _Position. Insertion + * into a container at a specific position requires that the iterator + * be nonsingular (i.e., either dereferenceable or past-the-end), + * that it reference the sequence we are inserting into, and that the + * iterator range [_First, _Last) is a valid (possibly empty) + * range which does not reference the sequence we are inserting into. + * Note that this macro is only valid when the container is a + * _Safe_sequence and the _Position iterator is a _Safe_iterator. +*/ +#define __glibcxx_check_insert_range(_Position,_First,_Last,_Dist) \ +__glibcxx_check_valid_range2(_First,_Last,_Dist); \ +__glibcxx_check_insert(_Position); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\ + _M_message(__gnu_debug::__msg_insert_range_from_self)\ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_sequence(*this, "this")) + +/** Verify that we can insert the values in the iterator range + * [_First, _Last) into *this after the iterator _Position. Insertion + * into a container after a specific position requires that the iterator + * be nonsingular (i.e., either dereferenceable or past-the-end), + * that it reference the sequence we are inserting into, and that the + * iterator range [_First, _Last) is a valid (possibly empty) + * range which does not reference the sequence we are inserting into. + * Note that this macro is only valid when the container is a + * _Safe_sequence and the _Position iterator is a _Safe_iterator. +*/ +#define __glibcxx_check_insert_range_after(_Position,_First,_Last,_Dist)\ +__glibcxx_check_valid_range2(_First,_Last,_Dist); \ +__glibcxx_check_insert_after(_Position); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\ + _M_message(__gnu_debug::__msg_insert_range_from_self)\ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_sequence(*this, "this")) + +/** Verify that we can erase the element referenced by the iterator + * _Position. We can erase the element if the _Position iterator is + * dereferenceable and references this sequence. +*/ +#define __glibcxx_check_erase(_Position) \ +_GLIBCXX_DEBUG_VERIFY(_Position._M_dereferenceable(), \ + _M_message(__gnu_debug::__msg_erase_bad) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)); \ +_GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this), \ + _M_message(__gnu_debug::__msg_erase_different) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)) + +/** Verify that we can erase the element after the iterator + * _Position. We can erase the element if the _Position iterator is + * before a dereferenceable one and references this sequence. +*/ +#define __glibcxx_check_erase_after(_Position) \ +_GLIBCXX_DEBUG_VERIFY(_Position._M_before_dereferenceable(), \ + _M_message(__gnu_debug::__msg_erase_after_bad) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)); \ +_GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this), \ + _M_message(__gnu_debug::__msg_erase_different) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_Position, #_Position)) + +/** Verify that we can erase the elements in the iterator range + * [_First, _Last). We can erase the elements if [_First, _Last) is a + * valid iterator range within this sequence. +*/ +#define __glibcxx_check_erase_range(_First,_Last) \ +__glibcxx_check_valid_range(_First,_Last); \ +_GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this), \ + _M_message(__gnu_debug::__msg_erase_different) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) + +/** Verify that we can erase the elements in the iterator range + * (_First, _Last). We can erase the elements if (_First, _Last) is a + * valid iterator range within this sequence. +*/ +#define __glibcxx_check_erase_range_after(_First,_Last) \ +_GLIBCXX_DEBUG_VERIFY(_First._M_can_compare(_Last), \ + _M_message(__gnu_debug::__msg_erase_different) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)); \ +_GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this), \ + _M_message(__gnu_debug::__msg_erase_different) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_First, #_First)); \ +_GLIBCXX_DEBUG_VERIFY(_First != _Last, \ + _M_message(__gnu_debug::__msg_valid_range2) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)); \ +_GLIBCXX_DEBUG_VERIFY(_First._M_incrementable(), \ + _M_message(__gnu_debug::__msg_valid_range2) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)); \ +_GLIBCXX_DEBUG_VERIFY(!_Last._M_is_before_begin(), \ + _M_message(__gnu_debug::__msg_valid_range2) \ + ._M_sequence(*this, "this") \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) \ + +// Verify that the subscript _N is less than the container's size. +#define __glibcxx_check_subscript(_N) \ +_GLIBCXX_DEBUG_VERIFY(_N < this->size(), \ + _M_message(__gnu_debug::__msg_subscript_oob) \ + ._M_sequence(*this, "this") \ + ._M_integer(_N, #_N) \ + ._M_integer(this->size(), "size")) + +// Verify that the bucket _N is less than the container's buckets count. +#define __glibcxx_check_bucket_index(_N) \ +_GLIBCXX_DEBUG_VERIFY(_N < this->bucket_count(), \ + _M_message(__gnu_debug::__msg_bucket_index_oob) \ + ._M_sequence(*this, "this") \ + ._M_integer(_N, #_N) \ + ._M_integer(this->bucket_count(), "size")) + +// Verify that the container is nonempty +#define __glibcxx_check_nonempty() \ +_GLIBCXX_DEBUG_VERIFY(! this->empty(), \ + _M_message(__gnu_debug::__msg_empty) \ + ._M_sequence(*this, "this")) + +// Verify that a predicate is irreflexive +#define __glibcxx_check_irreflexive(_First,_Last) \ + _GLIBCXX_DEBUG_VERIFY(_First == _Last || !(*_First < *_First), \ + _M_message(__gnu_debug::__msg_irreflexive_ordering) \ + ._M_iterator_value_type(_First, "< operator type")) + +#if __cplusplus >= 201103L +# define __glibcxx_check_irreflexive2(_First,_Last) \ + _GLIBCXX_DEBUG_VERIFY(_First == _Last \ + || __gnu_debug::__is_irreflexive(_First), \ + _M_message(__gnu_debug::__msg_irreflexive_ordering) \ + ._M_iterator_value_type(_First, "< operator type")) +#else +# define __glibcxx_check_irreflexive2(_First,_Last) +#endif + +#define __glibcxx_check_irreflexive_pred(_First,_Last,_Pred) \ + _GLIBCXX_DEBUG_VERIFY(_First == _Last || !_Pred(*_First, *_First), \ + _M_message(__gnu_debug::__msg_irreflexive_ordering) \ + ._M_instance(_Pred, "functor") \ + ._M_iterator_value_type(_First, "ordered type")) + +#if __cplusplus >= 201103L +# define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred) \ + _GLIBCXX_DEBUG_VERIFY(_First == _Last \ + ||__gnu_debug::__is_irreflexive_pred(_First, _Pred), \ + _M_message(__gnu_debug::__msg_irreflexive_ordering) \ + ._M_instance(_Pred, "functor") \ + ._M_iterator_value_type(_First, "ordered type")) +#else +# define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred) +#endif + +// Verify that the iterator range [_First, _Last) is sorted +#define __glibcxx_check_sorted(_First,_Last) \ +__glibcxx_check_valid_range(_First,_Last); \ +__glibcxx_check_irreflexive(_First,_Last); \ + _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted( \ + __gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last)), \ + _M_message(__gnu_debug::__msg_unsorted) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) + +/** Verify that the iterator range [_First, _Last) is sorted by the + predicate _Pred. */ +#define __glibcxx_check_sorted_pred(_First,_Last,_Pred) \ +__glibcxx_check_valid_range(_First,_Last); \ +__glibcxx_check_irreflexive_pred(_First,_Last,_Pred); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted( \ + __gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last), _Pred), \ + _M_message(__gnu_debug::__msg_unsorted_pred) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_string(#_Pred)) + +// Special variant for std::merge, std::includes, std::set_* +#define __glibcxx_check_sorted_set(_First1,_Last1,_First2) \ +__glibcxx_check_valid_range(_First1,_Last1); \ +_GLIBCXX_DEBUG_VERIFY( \ + __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1), \ + __gnu_debug::__base(_Last1), _First2),\ + _M_message(__gnu_debug::__msg_unsorted) \ + ._M_iterator(_First1, #_First1) \ + ._M_iterator(_Last1, #_Last1)) + +// Likewise with a _Pred. +#define __glibcxx_check_sorted_set_pred(_First1,_Last1,_First2,_Pred) \ +__glibcxx_check_valid_range(_First1,_Last1); \ +_GLIBCXX_DEBUG_VERIFY( \ + __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1), \ + __gnu_debug::__base(_Last1), \ + _First2, _Pred), \ + _M_message(__gnu_debug::__msg_unsorted_pred) \ + ._M_iterator(_First1, #_First1) \ + ._M_iterator(_Last1, #_Last1) \ + ._M_string(#_Pred)) + +/** Verify that the iterator range [_First, _Last) is partitioned + w.r.t. the value _Value. */ +#define __glibcxx_check_partitioned_lower(_First,_Last,_Value) \ +__glibcxx_check_valid_range(_First,_Last); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower( \ + __gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last), _Value), \ + _M_message(__gnu_debug::__msg_unpartitioned) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_string(#_Value)) + +#define __glibcxx_check_partitioned_upper(_First,_Last,_Value) \ +__glibcxx_check_valid_range(_First,_Last); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper( \ + __gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last), _Value), \ + _M_message(__gnu_debug::__msg_unpartitioned) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_string(#_Value)) + +/** Verify that the iterator range [_First, _Last) is partitioned + w.r.t. the value _Value and predicate _Pred. */ +#define __glibcxx_check_partitioned_lower_pred(_First,_Last,_Value,_Pred) \ +__glibcxx_check_valid_range(_First,_Last); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower( \ + __gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last), _Value, _Pred), \ + _M_message(__gnu_debug::__msg_unpartitioned_pred) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_string(#_Pred) \ + ._M_string(#_Value)) + +/** Verify that the iterator range [_First, _Last) is partitioned + w.r.t. the value _Value and predicate _Pred. */ +#define __glibcxx_check_partitioned_upper_pred(_First,_Last,_Value,_Pred) \ +__glibcxx_check_valid_range(_First,_Last); \ +_GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper( \ + __gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last), _Value, _Pred), \ + _M_message(__gnu_debug::__msg_unpartitioned_pred) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_string(#_Pred) \ + ._M_string(#_Value)) + +// Verify that the iterator range [_First, _Last) is a heap +#define __glibcxx_check_heap(_First,_Last) \ + _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last)), \ + _M_message(__gnu_debug::__msg_not_heap) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last)) + +/** Verify that the iterator range [_First, _Last) is a heap + w.r.t. the predicate _Pred. */ +#define __glibcxx_check_heap_pred(_First,_Last,_Pred) \ + _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First), \ + __gnu_debug::__base(_Last), \ + _Pred), \ + _M_message(__gnu_debug::__msg_not_heap_pred) \ + ._M_iterator(_First, #_First) \ + ._M_iterator(_Last, #_Last) \ + ._M_string(#_Pred)) + +// Verify that the container is not self move assigned +#define __glibcxx_check_self_move_assign(_Other) \ +_GLIBCXX_DEBUG_VERIFY(this != &_Other, \ + _M_message(__gnu_debug::__msg_self_move_assign) \ + ._M_sequence(*this, "this")) + +// Verify that load factor is positive +#define __glibcxx_check_max_load_factor(_F) \ +_GLIBCXX_DEBUG_VERIFY(_F > 0.0f, \ + _M_message(__gnu_debug::__msg_valid_load_factor) \ + ._M_sequence(*this, "this")) + +#define __glibcxx_check_equal_allocs(_This, _Other) \ +_GLIBCXX_DEBUG_VERIFY(_This.get_allocator() == _Other.get_allocator(), \ + _M_message(__gnu_debug::__msg_equal_allocs) \ + ._M_sequence(_This, "this")) + +#define __glibcxx_check_string(_String) _GLIBCXX_DEBUG_PEDASSERT(_String != 0) +#define __glibcxx_check_string_len(_String,_Len) \ + _GLIBCXX_DEBUG_PEDASSERT(_String != 0 || _Len == 0) + +#endif diff --git a/resources/sources/avr-libstdcpp/include/decimal/decimal b/resources/sources/avr-libstdcpp/include/decimal/decimal new file mode 100644 index 000000000..8863d7e2a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/decimal/decimal @@ -0,0 +1,494 @@ +// -*- C++ -*- + +// Copyright (C) 2009-2020 Free Software Foundation, Inc. +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file decimal/decimal + * This is a Standard C++ Library header. + */ + +// ISO/IEC TR 24733 +// Written by Janis Johnson + +#ifndef _GLIBCXX_DECIMAL +#define _GLIBCXX_DECIMAL 1 + +#pragma GCC system_header + +#include + +#ifndef _GLIBCXX_USE_DECIMAL_FLOAT +#error This file requires compiler and library support for ISO/IEC TR 24733 \ +that is currently not available. +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup decimal Decimal Floating-Point Arithmetic + * @ingroup numerics + * + * Classes and functions for decimal floating-point arithmetic. + * @{ + */ + + /** @namespace std::decimal + * @brief ISO/IEC TR 24733 Decimal floating-point arithmetic. + */ +namespace decimal +{ + class decimal32; + class decimal64; + class decimal128; + + // 3.2.5 Initialization from coefficient and exponent. + static decimal32 make_decimal32(long long __coeff, int __exp); + static decimal32 make_decimal32(unsigned long long __coeff, int __exp); + static decimal64 make_decimal64(long long __coeff, int __exp); + static decimal64 make_decimal64(unsigned long long __coeff, int __exp); + static decimal128 make_decimal128(long long __coeff, int __exp); + static decimal128 make_decimal128(unsigned long long __coeff, int __exp); + + /// Non-conforming extension: Conversion to integral type. + long long decimal32_to_long_long(decimal32 __d); + long long decimal64_to_long_long(decimal64 __d); + long long decimal128_to_long_long(decimal128 __d); + long long decimal_to_long_long(decimal32 __d); + long long decimal_to_long_long(decimal64 __d); + long long decimal_to_long_long(decimal128 __d); + + // 3.2.6 Conversion to generic floating-point type. + float decimal32_to_float(decimal32 __d); + float decimal64_to_float(decimal64 __d); + float decimal128_to_float(decimal128 __d); + float decimal_to_float(decimal32 __d); + float decimal_to_float(decimal64 __d); + float decimal_to_float(decimal128 __d); + + double decimal32_to_double(decimal32 __d); + double decimal64_to_double(decimal64 __d); + double decimal128_to_double(decimal128 __d); + double decimal_to_double(decimal32 __d); + double decimal_to_double(decimal64 __d); + double decimal_to_double(decimal128 __d); + + long double decimal32_to_long_double(decimal32 __d); + long double decimal64_to_long_double(decimal64 __d); + long double decimal128_to_long_double(decimal128 __d); + long double decimal_to_long_double(decimal32 __d); + long double decimal_to_long_double(decimal64 __d); + long double decimal_to_long_double(decimal128 __d); + + // 3.2.7 Unary arithmetic operators. + decimal32 operator+(decimal32 __rhs); + decimal64 operator+(decimal64 __rhs); + decimal128 operator+(decimal128 __rhs); + decimal32 operator-(decimal32 __rhs); + decimal64 operator-(decimal64 __rhs); + decimal128 operator-(decimal128 __rhs); + + // 3.2.8 Binary arithmetic operators. +#define _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(_Op, _T1, _T2, _T3) \ + _T1 operator _Op(_T2 __lhs, _T3 __rhs); +#define _DECLARE_DECIMAL_BINARY_OP_WITH_INT(_Op, _Tp) \ + _Tp operator _Op(_Tp __lhs, int __rhs); \ + _Tp operator _Op(_Tp __lhs, unsigned int __rhs); \ + _Tp operator _Op(_Tp __lhs, long __rhs); \ + _Tp operator _Op(_Tp __lhs, unsigned long __rhs); \ + _Tp operator _Op(_Tp __lhs, long long __rhs); \ + _Tp operator _Op(_Tp __lhs, unsigned long long __rhs); \ + _Tp operator _Op(int __lhs, _Tp __rhs); \ + _Tp operator _Op(unsigned int __lhs, _Tp __rhs); \ + _Tp operator _Op(long __lhs, _Tp __rhs); \ + _Tp operator _Op(unsigned long __lhs, _Tp __rhs); \ + _Tp operator _Op(long long __lhs, _Tp __rhs); \ + _Tp operator _Op(unsigned long long __lhs, _Tp __rhs); + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal128) + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal128) + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal128) + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal128) + +#undef _DECLARE_DECIMAL_BINARY_OP_WITH_DEC +#undef _DECLARE_DECIMAL_BINARY_OP_WITH_INT + + // 3.2.9 Comparison operators. +#define _DECLARE_DECIMAL_COMPARISON(_Op, _Tp) \ + bool operator _Op(_Tp __lhs, decimal32 __rhs); \ + bool operator _Op(_Tp __lhs, decimal64 __rhs); \ + bool operator _Op(_Tp __lhs, decimal128 __rhs); \ + bool operator _Op(_Tp __lhs, int __rhs); \ + bool operator _Op(_Tp __lhs, unsigned int __rhs); \ + bool operator _Op(_Tp __lhs, long __rhs); \ + bool operator _Op(_Tp __lhs, unsigned long __rhs); \ + bool operator _Op(_Tp __lhs, long long __rhs); \ + bool operator _Op(_Tp __lhs, unsigned long long __rhs); \ + bool operator _Op(int __lhs, _Tp __rhs); \ + bool operator _Op(unsigned int __lhs, _Tp __rhs); \ + bool operator _Op(long __lhs, _Tp __rhs); \ + bool operator _Op(unsigned long __lhs, _Tp __rhs); \ + bool operator _Op(long long __lhs, _Tp __rhs); \ + bool operator _Op(unsigned long long __lhs, _Tp __rhs); + + _DECLARE_DECIMAL_COMPARISON(==, decimal32) + _DECLARE_DECIMAL_COMPARISON(==, decimal64) + _DECLARE_DECIMAL_COMPARISON(==, decimal128) + + _DECLARE_DECIMAL_COMPARISON(!=, decimal32) + _DECLARE_DECIMAL_COMPARISON(!=, decimal64) + _DECLARE_DECIMAL_COMPARISON(!=, decimal128) + + _DECLARE_DECIMAL_COMPARISON(<, decimal32) + _DECLARE_DECIMAL_COMPARISON(<, decimal64) + _DECLARE_DECIMAL_COMPARISON(<, decimal128) + + _DECLARE_DECIMAL_COMPARISON(>=, decimal32) + _DECLARE_DECIMAL_COMPARISON(>=, decimal64) + _DECLARE_DECIMAL_COMPARISON(>=, decimal128) + + _DECLARE_DECIMAL_COMPARISON(>, decimal32) + _DECLARE_DECIMAL_COMPARISON(>, decimal64) + _DECLARE_DECIMAL_COMPARISON(>, decimal128) + + _DECLARE_DECIMAL_COMPARISON(>=, decimal32) + _DECLARE_DECIMAL_COMPARISON(>=, decimal64) + _DECLARE_DECIMAL_COMPARISON(>=, decimal128) + +#undef _DECLARE_DECIMAL_COMPARISON + + /// 3.2.2 Class decimal32. + class decimal32 + { + public: + typedef float __decfloat32 __attribute__((mode(SD))); + + // 3.2.2.2 Construct/copy/destroy. + decimal32() : __val(0.e-101DF) {} + + // 3.2.2.3 Conversion from floating-point type. + explicit decimal32(decimal64 __d64); + explicit decimal32(decimal128 __d128); + explicit decimal32(float __r) : __val(__r) {} + explicit decimal32(double __r) : __val(__r) {} + explicit decimal32(long double __r) : __val(__r) {} + + // 3.2.2.4 Conversion from integral type. + decimal32(int __z) : __val(__z) {} + decimal32(unsigned int __z) : __val(__z) {} + decimal32(long __z) : __val(__z) {} + decimal32(unsigned long __z) : __val(__z) {} + decimal32(long long __z) : __val(__z) {} + decimal32(unsigned long long __z) : __val(__z) {} + + /// Conforming extension: Conversion from scalar decimal type. + decimal32(__decfloat32 __z) : __val(__z) {} + +#if __cplusplus >= 201103L + // 3.2.2.5 Conversion to integral type. + // Note: explicit per n3407. + explicit operator long long() const { return (long long)__val; } +#endif + + // 3.2.2.6 Increment and decrement operators. + decimal32& operator++() + { + __val += 1; + return *this; + } + + decimal32 operator++(int) + { + decimal32 __tmp = *this; + __val += 1; + return __tmp; + } + + decimal32& operator--() + { + __val -= 1; + return *this; + } + + decimal32 operator--(int) + { + decimal32 __tmp = *this; + __val -= 1; + return __tmp; + } + + // 3.2.2.7 Compound assignment. +#define _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(_Op) \ + decimal32& operator _Op(decimal32 __rhs); \ + decimal32& operator _Op(decimal64 __rhs); \ + decimal32& operator _Op(decimal128 __rhs); \ + decimal32& operator _Op(int __rhs); \ + decimal32& operator _Op(unsigned int __rhs); \ + decimal32& operator _Op(long __rhs); \ + decimal32& operator _Op(unsigned long __rhs); \ + decimal32& operator _Op(long long __rhs); \ + decimal32& operator _Op(unsigned long long __rhs); + + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(+=) + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(-=) + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(*=) + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(/=) +#undef _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT + + private: + __decfloat32 __val; + + public: + __decfloat32 __getval(void) { return __val; } + void __setval(__decfloat32 __x) { __val = __x; } + }; + + /// 3.2.3 Class decimal64. + class decimal64 + { + public: + typedef float __decfloat64 __attribute__((mode(DD))); + + // 3.2.3.2 Construct/copy/destroy. + decimal64() : __val(0.e-398dd) {} + + // 3.2.3.3 Conversion from floating-point type. + decimal64(decimal32 d32); + explicit decimal64(decimal128 d128); + explicit decimal64(float __r) : __val(__r) {} + explicit decimal64(double __r) : __val(__r) {} + explicit decimal64(long double __r) : __val(__r) {} + + // 3.2.3.4 Conversion from integral type. + decimal64(int __z) : __val(__z) {} + decimal64(unsigned int __z) : __val(__z) {} + decimal64(long __z) : __val(__z) {} + decimal64(unsigned long __z) : __val(__z) {} + decimal64(long long __z) : __val(__z) {} + decimal64(unsigned long long __z) : __val(__z) {} + + /// Conforming extension: Conversion from scalar decimal type. + decimal64(__decfloat64 __z) : __val(__z) {} + +#if __cplusplus >= 201103L + // 3.2.3.5 Conversion to integral type. + // Note: explicit per n3407. + explicit operator long long() const { return (long long)__val; } +#endif + + // 3.2.3.6 Increment and decrement operators. + decimal64& operator++() + { + __val += 1; + return *this; + } + + decimal64 operator++(int) + { + decimal64 __tmp = *this; + __val += 1; + return __tmp; + } + + decimal64& operator--() + { + __val -= 1; + return *this; + } + + decimal64 operator--(int) + { + decimal64 __tmp = *this; + __val -= 1; + return __tmp; + } + + // 3.2.3.7 Compound assignment. +#define _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(_Op) \ + decimal64& operator _Op(decimal32 __rhs); \ + decimal64& operator _Op(decimal64 __rhs); \ + decimal64& operator _Op(decimal128 __rhs); \ + decimal64& operator _Op(int __rhs); \ + decimal64& operator _Op(unsigned int __rhs); \ + decimal64& operator _Op(long __rhs); \ + decimal64& operator _Op(unsigned long __rhs); \ + decimal64& operator _Op(long long __rhs); \ + decimal64& operator _Op(unsigned long long __rhs); + + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(+=) + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(-=) + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(*=) + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(/=) +#undef _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT + + private: + __decfloat64 __val; + + public: + __decfloat64 __getval(void) { return __val; } + void __setval(__decfloat64 __x) { __val = __x; } + }; + + /// 3.2.4 Class decimal128. + class decimal128 + { + public: + typedef float __decfloat128 __attribute__((mode(TD))); + + // 3.2.4.2 Construct/copy/destroy. + decimal128() : __val(0.e-6176DL) {} + + // 3.2.4.3 Conversion from floating-point type. + decimal128(decimal32 d32); + decimal128(decimal64 d64); + explicit decimal128(float __r) : __val(__r) {} + explicit decimal128(double __r) : __val(__r) {} + explicit decimal128(long double __r) : __val(__r) {} + + + // 3.2.4.4 Conversion from integral type. + decimal128(int __z) : __val(__z) {} + decimal128(unsigned int __z) : __val(__z) {} + decimal128(long __z) : __val(__z) {} + decimal128(unsigned long __z) : __val(__z) {} + decimal128(long long __z) : __val(__z) {} + decimal128(unsigned long long __z) : __val(__z) {} + + /// Conforming extension: Conversion from scalar decimal type. + decimal128(__decfloat128 __z) : __val(__z) {} + +#if __cplusplus >= 201103L + // 3.2.4.5 Conversion to integral type. + // Note: explicit per n3407. + explicit operator long long() const { return (long long)__val; } +#endif + + // 3.2.4.6 Increment and decrement operators. + decimal128& operator++() + { + __val += 1; + return *this; + } + + decimal128 operator++(int) + { + decimal128 __tmp = *this; + __val += 1; + return __tmp; + } + + decimal128& operator--() + { + __val -= 1; + return *this; + } + + decimal128 operator--(int) + { + decimal128 __tmp = *this; + __val -= 1; + return __tmp; + } + + // 3.2.4.7 Compound assignment. +#define _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(_Op) \ + decimal128& operator _Op(decimal32 __rhs); \ + decimal128& operator _Op(decimal64 __rhs); \ + decimal128& operator _Op(decimal128 __rhs); \ + decimal128& operator _Op(int __rhs); \ + decimal128& operator _Op(unsigned int __rhs); \ + decimal128& operator _Op(long __rhs); \ + decimal128& operator _Op(unsigned long __rhs); \ + decimal128& operator _Op(long long __rhs); \ + decimal128& operator _Op(unsigned long long __rhs); + + _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(+=) + _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(-=) + _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(*=) + _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(/=) +#undef _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT + + private: + __decfloat128 __val; + + public: + __decfloat128 __getval(void) { return __val; } + void __setval(__decfloat128 __x) { __val = __x; } + }; + +#define _GLIBCXX_USE_DECIMAL_ 1 +} // namespace decimal + // @} group decimal + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#include + +#endif /* _GLIBCXX_DECIMAL */ diff --git a/resources/sources/avr-libstdcpp/include/decimal/decimal.h b/resources/sources/avr-libstdcpp/include/decimal/decimal.h new file mode 100644 index 000000000..50147e7e8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/decimal/decimal.h @@ -0,0 +1,469 @@ +// decimal classes -*- C++ -*- + +// Copyright (C) 2009-2020 Free Software Foundation, Inc. + +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file decimal/decimal.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{decimal} + */ + +// ISO/IEC TR 24733 +// Written by Janis Johnson + +#ifndef _GLIBCXX_DECIMAL_IMPL +#define _GLIBCXX_DECIMAL_IMPL 1 + +#pragma GCC system_header + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +namespace decimal +{ + // ISO/IEC TR 24733 3.2.[234].1 Construct/copy/destroy. + + inline decimal32::decimal32(decimal64 __r) : __val(__r.__getval()) {} + inline decimal32::decimal32(decimal128 __r) : __val(__r.__getval()) {} + inline decimal64::decimal64(decimal32 __r) : __val(__r.__getval()) {} + inline decimal64::decimal64(decimal128 __r) : __val(__r.__getval()) {} + inline decimal128::decimal128(decimal32 __r) : __val(__r.__getval()) {} + inline decimal128::decimal128(decimal64 __r) : __val(__r.__getval()) {} + + // ISO/IEC TR 24733 3.2.[234].6 Compound assignment. + +#define _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, _T2) \ + inline _T1& _T1::operator _Op1(_T2 __rhs) \ + { \ + __setval(__getval() _Op2 __rhs.__getval()); \ + return *this; \ + } + +#define _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, _T2) \ + inline _T1& _T1::operator _Op1(_T2 __rhs) \ + { \ + __setval(__getval() _Op2 __rhs); \ + return *this; \ + } + +#define _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(_Op1, _Op2, _T1) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, decimal32) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, decimal64) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, decimal128) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, int) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, unsigned int) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, long) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, unsigned long)\ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, long long) \ + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, unsigned long long) + + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(+=, +, decimal32) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(-=, -, decimal32) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(*=, *, decimal32) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(/=, /, decimal32) + + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(+=, +, decimal64) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(-=, -, decimal64) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(*=, *, decimal64) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(/=, /, decimal64) + + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(+=, +, decimal128) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(-=, -, decimal128) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(*=, *, decimal128) + _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(/=, /, decimal128) + +#undef _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC +#undef _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT +#undef _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS + + // Extension: Conversion to integral type. + + inline long long decimal32_to_long_long(decimal32 __d) + { return (long long)__d.__getval(); } + + inline long long decimal64_to_long_long(decimal64 __d) + { return (long long)__d.__getval(); } + + inline long long decimal128_to_long_long(decimal128 __d) + { return (long long)__d.__getval(); } + + inline long long decimal_to_long_long(decimal32 __d) + { return (long long)__d.__getval(); } + + inline long long decimal_to_long_long(decimal64 __d) + { return (long long)__d.__getval(); } + + inline long long decimal_to_long_long(decimal128 __d) + { return (long long)__d.__getval(); } + + // ISO/IEC TR 24733 3.2.5 Initialization from coefficient and exponent. + + static decimal32 make_decimal32(long long __coeff, int __exponent) + { + decimal32 __decexp = 1, __multiplier; + + if (__exponent < 0) + { + __multiplier = 1.E-1DF; + __exponent = -__exponent; + } + else + __multiplier = 1.E1DF; + + for (int __i = 0; __i < __exponent; ++__i) + __decexp *= __multiplier; + + return __coeff * __decexp; + } + + static decimal32 make_decimal32(unsigned long long __coeff, int __exponent) + { + decimal32 __decexp = 1, __multiplier; + + if (__exponent < 0) + { + __multiplier = 1.E-1DF; + __exponent = -__exponent; + } + else + __multiplier = 1.E1DF; + + for (int __i = 0; __i < __exponent; ++__i) + __decexp *= __multiplier; + + return __coeff * __decexp; + } + + static decimal64 make_decimal64(long long __coeff, int __exponent) + { + decimal64 __decexp = 1, __multiplier; + + if (__exponent < 0) + { + __multiplier = 1.E-1DD; + __exponent = -__exponent; + } + else + __multiplier = 1.E1DD; + + for (int __i = 0; __i < __exponent; ++__i) + __decexp *= __multiplier; + + return __coeff * __decexp; + } + + static decimal64 make_decimal64(unsigned long long __coeff, int __exponent) + { + decimal64 __decexp = 1, __multiplier; + + if (__exponent < 0) + { + __multiplier = 1.E-1DD; + __exponent = -__exponent; + } + else + __multiplier = 1.E1DD; + + for (int __i = 0; __i < __exponent; ++__i) + __decexp *= __multiplier; + + return __coeff * __decexp; + } + + static decimal128 make_decimal128(long long __coeff, int __exponent) + { + decimal128 __decexp = 1, __multiplier; + + if (__exponent < 0) + { + __multiplier = 1.E-1DL; + __exponent = -__exponent; + } + else + __multiplier = 1.E1DL; + + for (int __i = 0; __i < __exponent; ++__i) + __decexp *= __multiplier; + + return __coeff * __decexp; + } + + static decimal128 make_decimal128(unsigned long long __coeff, int __exponent) + { + decimal128 __decexp = 1, __multiplier; + + if (__exponent < 0) + { + __multiplier = 1.E-1DL; + __exponent = -__exponent; + } + else + __multiplier = 1.E1DL; + + for (int __i = 0; __i < __exponent; ++__i) + __decexp *= __multiplier; + + return __coeff * __decexp; + } + + // ISO/IEC TR 24733 3.2.6 Conversion to generic floating-point type. + + inline float decimal32_to_float(decimal32 __d) + { return (float)__d.__getval(); } + + inline float decimal64_to_float(decimal64 __d) + { return (float)__d.__getval(); } + + inline float decimal128_to_float(decimal128 __d) + { return (float)__d.__getval(); } + + inline float decimal_to_float(decimal32 __d) + { return (float)__d.__getval(); } + + inline float decimal_to_float(decimal64 __d) + { return (float)__d.__getval(); } + + inline float decimal_to_float(decimal128 __d) + { return (float)__d.__getval(); } + + inline double decimal32_to_double(decimal32 __d) + { return (double)__d.__getval(); } + + inline double decimal64_to_double(decimal64 __d) + { return (double)__d.__getval(); } + + inline double decimal128_to_double(decimal128 __d) + { return (double)__d.__getval(); } + + inline double decimal_to_double(decimal32 __d) + { return (double)__d.__getval(); } + + inline double decimal_to_double(decimal64 __d) + { return (double)__d.__getval(); } + + inline double decimal_to_double(decimal128 __d) + { return (double)__d.__getval(); } + + inline long double decimal32_to_long_double(decimal32 __d) + { return (long double)__d.__getval(); } + + inline long double decimal64_to_long_double(decimal64 __d) + { return (long double)__d.__getval(); } + + inline long double decimal128_to_long_double(decimal128 __d) + { return (long double)__d.__getval(); } + + inline long double decimal_to_long_double(decimal32 __d) + { return (long double)__d.__getval(); } + + inline long double decimal_to_long_double(decimal64 __d) + { return (long double)__d.__getval(); } + + inline long double decimal_to_long_double(decimal128 __d) + { return (long double)__d.__getval(); } + + // ISO/IEC TR 24733 3.2.7 Unary arithmetic operators. + +#define _DEFINE_DECIMAL_UNARY_OP(_Op, _Tp) \ + inline _Tp operator _Op(_Tp __rhs) \ + { \ + _Tp __tmp; \ + __tmp.__setval(_Op __rhs.__getval()); \ + return __tmp; \ + } + + _DEFINE_DECIMAL_UNARY_OP(+, decimal32) + _DEFINE_DECIMAL_UNARY_OP(+, decimal64) + _DEFINE_DECIMAL_UNARY_OP(+, decimal128) + _DEFINE_DECIMAL_UNARY_OP(-, decimal32) + _DEFINE_DECIMAL_UNARY_OP(-, decimal64) + _DEFINE_DECIMAL_UNARY_OP(-, decimal128) + +#undef _DEFINE_DECIMAL_UNARY_OP + + // ISO/IEC TR 24733 3.2.8 Binary arithmetic operators. + +#define _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(_Op, _T1, _T2, _T3) \ + inline _T1 operator _Op(_T2 __lhs, _T3 __rhs) \ + { \ + _T1 __retval; \ + __retval.__setval(__lhs.__getval() _Op __rhs.__getval()); \ + return __retval; \ + } + +#define _DEFINE_DECIMAL_BINARY_OP_BOTH(_Op, _T1, _T2, _T3) \ + inline _T1 operator _Op(_T2 __lhs, _T3 __rhs) \ + { \ + _T1 __retval; \ + __retval.__setval(__lhs.__getval() _Op __rhs.__getval()); \ + return __retval; \ + } + +#define _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, _T2) \ + inline _T1 operator _Op(_T1 __lhs, _T2 __rhs) \ + { \ + _T1 __retval; \ + __retval.__setval(__lhs.__getval() _Op __rhs); \ + return __retval; \ + } + +#define _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, _T2) \ + inline _T1 operator _Op(_T2 __lhs, _T1 __rhs) \ + { \ + _T1 __retval; \ + __retval.__setval(__lhs _Op __rhs.__getval()); \ + return __retval; \ + } + +#define _DEFINE_DECIMAL_BINARY_OP_WITH_INT(_Op, _T1) \ + _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, int); \ + _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, unsigned int); \ + _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, long); \ + _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, unsigned long); \ + _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, long long); \ + _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, unsigned long long); \ + _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, int); \ + _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, unsigned int); \ + _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, long); \ + _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, unsigned long); \ + _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, long long); \ + _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, unsigned long long); \ + + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal32, decimal32, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(+, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal32, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(+, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal32, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal64, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(+, decimal128) + + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal32, decimal32, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(-, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal32, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(-, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal32, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal64, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(-, decimal128) + + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal32, decimal32, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(*, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal32, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(*, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal32, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal64, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(*, decimal128) + + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal32, decimal32, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(/, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal32, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(/, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal32, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal64, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal32) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal64) + _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal128) + _DEFINE_DECIMAL_BINARY_OP_WITH_INT(/, decimal128) + +#undef _DEFINE_DECIMAL_BINARY_OP_WITH_DEC +#undef _DEFINE_DECIMAL_BINARY_OP_BOTH +#undef _DEFINE_DECIMAL_BINARY_OP_LHS +#undef _DEFINE_DECIMAL_BINARY_OP_RHS +#undef _DEFINE_DECIMAL_BINARY_OP_WITH_INT + + // ISO/IEC TR 24733 3.2.9 Comparison operators. + +#define _DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _T1, _T2) \ + inline bool operator _Op(_T1 __lhs, _T2 __rhs) \ + { return __lhs.__getval() _Op __rhs.__getval(); } + +#define _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _T1, _T2) \ + inline bool operator _Op(_T1 __lhs, _T2 __rhs) \ + { return __lhs.__getval() _Op __rhs; } + +#define _DEFINE_DECIMAL_COMPARISON_RHS(_Op, _T1, _T2) \ + inline bool operator _Op(_T1 __lhs, _T2 __rhs) \ + { return __lhs _Op __rhs.__getval(); } + +#define _DEFINE_DECIMAL_COMPARISONS(_Op, _Tp) \ + _DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _Tp, decimal32) \ + _DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _Tp, decimal64) \ + _DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _Tp, decimal128) \ + _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, int) \ + _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, unsigned int) \ + _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, long) \ + _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, unsigned long) \ + _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, long long) \ + _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, unsigned long long) \ + _DEFINE_DECIMAL_COMPARISON_RHS(_Op, int, _Tp) \ + _DEFINE_DECIMAL_COMPARISON_RHS(_Op, unsigned int, _Tp) \ + _DEFINE_DECIMAL_COMPARISON_RHS(_Op, long, _Tp) \ + _DEFINE_DECIMAL_COMPARISON_RHS(_Op, unsigned long, _Tp) \ + _DEFINE_DECIMAL_COMPARISON_RHS(_Op, long long, _Tp) \ + _DEFINE_DECIMAL_COMPARISON_RHS(_Op, unsigned long long, _Tp) + + _DEFINE_DECIMAL_COMPARISONS(==, decimal32) + _DEFINE_DECIMAL_COMPARISONS(==, decimal64) + _DEFINE_DECIMAL_COMPARISONS(==, decimal128) + _DEFINE_DECIMAL_COMPARISONS(!=, decimal32) + _DEFINE_DECIMAL_COMPARISONS(!=, decimal64) + _DEFINE_DECIMAL_COMPARISONS(!=, decimal128) + _DEFINE_DECIMAL_COMPARISONS(<, decimal32) + _DEFINE_DECIMAL_COMPARISONS(<, decimal64) + _DEFINE_DECIMAL_COMPARISONS(<, decimal128) + _DEFINE_DECIMAL_COMPARISONS(<=, decimal32) + _DEFINE_DECIMAL_COMPARISONS(<=, decimal64) + _DEFINE_DECIMAL_COMPARISONS(<=, decimal128) + _DEFINE_DECIMAL_COMPARISONS(>, decimal32) + _DEFINE_DECIMAL_COMPARISONS(>, decimal64) + _DEFINE_DECIMAL_COMPARISONS(>, decimal128) + _DEFINE_DECIMAL_COMPARISONS(>=, decimal32) + _DEFINE_DECIMAL_COMPARISONS(>=, decimal64) + _DEFINE_DECIMAL_COMPARISONS(>=, decimal128) + +#undef _DEFINE_DECIMAL_COMPARISON_BOTH +#undef _DEFINE_DECIMAL_COMPARISON_LHS +#undef _DEFINE_DECIMAL_COMPARISON_RHS +#undef _DEFINE_DECIMAL_COMPARISONS +} // namespace decimal + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _GLIBCXX_DECIMAL_IMPL */ diff --git a/resources/sources/avr-libstdcpp/include/deque b/resources/sources/avr-libstdcpp/include/deque new file mode 100644 index 000000000..07e2c69d0 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/deque @@ -0,0 +1,119 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/deque + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_DEQUE +#define _GLIBCXX_DEQUE 1 + +#pragma GCC system_header + +#include +#if __cplusplus > 201703L +# include // For remove and remove_if +#endif // C++20 +#include +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template + using deque = std::deque<_Tp, polymorphic_allocator<_Tp>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_erase_if 202002L + + template + inline typename deque<_Tp, _Alloc>::size_type + erase_if(deque<_Tp, _Alloc>& __cont, _Predicate __pred) + { + const auto __osz = __cont.size(); + __cont.erase(std::remove_if(__cont.begin(), __cont.end(), __pred), + __cont.end()); + return __osz - __cont.size(); + } + + template + inline typename deque<_Tp, _Alloc>::size_type + erase(deque<_Tp, _Alloc>& __cont, const _Up& __value) + { + const auto __osz = __cont.size(); + __cont.erase(std::remove(__cont.begin(), __cont.end(), __value), + __cont.end()); + return __osz - __cont.size(); + } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif /* _GLIBCXX_DEQUE */ diff --git a/resources/sources/avr-libstdcpp/include/ext/algorithm b/resources/sources/avr-libstdcpp/include/ext/algorithm new file mode 100644 index 000000000..e7106fde4 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/algorithm @@ -0,0 +1,596 @@ +// Algorithm extensions -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file ext/algorithm + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _EXT_ALGORITHM +#define _EXT_ALGORITHM 1 + +#pragma GCC system_header + +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + //-------------------------------------------------- + // copy_n (not part of the C++ standard) + + template + std::pair<_InputIterator, _OutputIterator> + __copy_n(_InputIterator __first, _Size __count, + _OutputIterator __result, + std::input_iterator_tag) + { + for ( ; __count > 0; --__count) + { + *__result = *__first; + ++__first; + ++__result; + } + return std::pair<_InputIterator, _OutputIterator>(__first, __result); + } + + template + inline std::pair<_RAIterator, _OutputIterator> + __copy_n(_RAIterator __first, _Size __count, + _OutputIterator __result, + std::random_access_iterator_tag) + { + _RAIterator __last = __first + __count; + return std::pair<_RAIterator, _OutputIterator>(__last, std::copy(__first, + __last, + __result)); + } + + /** + * @brief Copies the range [first,first+count) into [result,result+count). + * @param __first An input iterator. + * @param __count The number of elements to copy. + * @param __result An output iterator. + * @return A std::pair composed of first+count and result+count. + * + * This is an SGI extension. + * This inline function will boil down to a call to @c memmove whenever + * possible. Failing that, if random access iterators are passed, then the + * loop count will be known (and therefore a candidate for compiler + * optimizations such as unrolling). + * @ingroup SGIextensions + */ + template + inline std::pair<_InputIterator, _OutputIterator> + copy_n(_InputIterator __first, _Size __count, _OutputIterator __result) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename std::iterator_traits<_InputIterator>::value_type>) + + return __gnu_cxx::__copy_n(__first, __count, __result, + std::__iterator_category(__first)); + } + + template + int + __lexicographical_compare_3way(_InputIterator1 __first1, + _InputIterator1 __last1, + _InputIterator2 __first2, + _InputIterator2 __last2) + { + while (__first1 != __last1 && __first2 != __last2) + { + if (*__first1 < *__first2) + return -1; + if (*__first2 < *__first1) + return 1; + ++__first1; + ++__first2; + } + if (__first2 == __last2) + return !(__first1 == __last1); + else + return -1; + } + + inline int + __lexicographical_compare_3way(const unsigned char* __first1, + const unsigned char* __last1, + const unsigned char* __first2, + const unsigned char* __last2) + { + const std::ptrdiff_t __len1 = __last1 - __first1; + const std::ptrdiff_t __len2 = __last2 - __first2; + const int __result = __builtin_memcmp(__first1, __first2, + (std::min)(__len1, __len2)); + return __result != 0 ? __result + : (__len1 == __len2 ? 0 : (__len1 < __len2 ? -1 : 1)); + } + + inline int + __lexicographical_compare_3way(const char* __first1, const char* __last1, + const char* __first2, const char* __last2) + { +#if CHAR_MAX == SCHAR_MAX + return __lexicographical_compare_3way((const signed char*) __first1, + (const signed char*) __last1, + (const signed char*) __first2, + (const signed char*) __last2); +#else + return __lexicographical_compare_3way((const unsigned char*) __first1, + (const unsigned char*) __last1, + (const unsigned char*) __first2, + (const unsigned char*) __last2); +#endif + } + + /** + * @brief @c memcmp on steroids. + * @param __first1 An input iterator. + * @param __last1 An input iterator. + * @param __first2 An input iterator. + * @param __last2 An input iterator. + * @return An int, as with @c memcmp. + * + * The return value will be less than zero if the first range is + * lexigraphically less than the second, greater than zero + * if the second range is lexigraphically less than the + * first, and zero otherwise. + * This is an SGI extension. + * @ingroup SGIextensions + */ + template + int + lexicographical_compare_3way(_InputIterator1 __first1, + _InputIterator1 __last1, + _InputIterator2 __first2, + _InputIterator2 __last2) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator1>) + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator2>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename std::iterator_traits<_InputIterator1>::value_type>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename std::iterator_traits<_InputIterator2>::value_type>) + __glibcxx_requires_valid_range(__first1, __last1); + __glibcxx_requires_valid_range(__first2, __last2); + + return __lexicographical_compare_3way(__first1, __last1, __first2, + __last2); + } + + // count and count_if: this version, whose return type is void, was present + // in the HP STL, and is retained as an extension for backward compatibility. + template + void + count(_InputIterator __first, _InputIterator __last, + const _Tp& __value, + _Size& __n) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_EqualityComparableConcept< + typename std::iterator_traits<_InputIterator>::value_type >) + __glibcxx_function_requires(_EqualityComparableConcept<_Tp>) + __glibcxx_requires_valid_range(__first, __last); + + for ( ; __first != __last; ++__first) + if (*__first == __value) + ++__n; + } + + template + void + count_if(_InputIterator __first, _InputIterator __last, + _Predicate __pred, + _Size& __n) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_UnaryPredicateConcept<_Predicate, + typename std::iterator_traits<_InputIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + for ( ; __first != __last; ++__first) + if (__pred(*__first)) + ++__n; + } + + // random_sample and random_sample_n (extensions, not part of the standard). + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + _OutputIterator + random_sample_n(_ForwardIterator __first, _ForwardIterator __last, + _OutputIterator __out, const _Distance __n) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename std::iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + _Distance __remaining = std::distance(__first, __last); + _Distance __m = (std::min)(__n, __remaining); + + while (__m > 0) + { + if ((std::rand() % __remaining) < __m) + { + *__out = *__first; + ++__out; + --__m; + } + --__remaining; + ++__first; + } + return __out; + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + _OutputIterator + random_sample_n(_ForwardIterator __first, _ForwardIterator __last, + _OutputIterator __out, const _Distance __n, + _RandomNumberGenerator& __rand) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator, + typename std::iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_function_requires(_UnaryFunctionConcept< + _RandomNumberGenerator, _Distance, _Distance>) + __glibcxx_requires_valid_range(__first, __last); + + _Distance __remaining = std::distance(__first, __last); + _Distance __m = (std::min)(__n, __remaining); + + while (__m > 0) + { + if (__rand(__remaining) < __m) + { + *__out = *__first; + ++__out; + --__m; + } + --__remaining; + ++__first; + } + return __out; + } + + template + _RandomAccessIterator + __random_sample(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __out, + const _Distance __n) + { + _Distance __m = 0; + _Distance __t = __n; + for ( ; __first != __last && __m < __n; ++__m, ++__first) + __out[__m] = *__first; + + while (__first != __last) + { + ++__t; + _Distance __M = std::rand() % (__t); + if (__M < __n) + __out[__M] = *__first; + ++__first; + } + return __out + __m; + } + + template + _RandomAccessIterator + __random_sample(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __out, + _RandomNumberGenerator& __rand, + const _Distance __n) + { + // concept requirements + __glibcxx_function_requires(_UnaryFunctionConcept< + _RandomNumberGenerator, _Distance, _Distance>) + + _Distance __m = 0; + _Distance __t = __n; + for ( ; __first != __last && __m < __n; ++__m, ++__first) + __out[__m] = *__first; + + while (__first != __last) + { + ++__t; + _Distance __M = __rand(__t); + if (__M < __n) + __out[__M] = *__first; + ++__first; + } + return __out + __m; + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + inline _RandomAccessIterator + random_sample(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __out_first, + _RandomAccessIterator __out_last) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_valid_range(__out_first, __out_last); + + return __random_sample(__first, __last, + __out_first, __out_last - __out_first); + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + inline _RandomAccessIterator + random_sample(_InputIterator __first, _InputIterator __last, + _RandomAccessIterator __out_first, + _RandomAccessIterator __out_last, + _RandomNumberGenerator& __rand) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + __glibcxx_function_requires(_Mutable_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_requires_valid_range(__first, __last); + __glibcxx_requires_valid_range(__out_first, __out_last); + + return __random_sample(__first, __last, + __out_first, __rand, + __out_last - __out_first); + } + +#if __cplusplus >= 201103L + using std::is_heap; +#else + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + inline bool + is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename std::iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__is_heap(__first, __last - __first); + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + inline bool + is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, + _StrictWeakOrdering __comp) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_StrictWeakOrdering, + typename std::iterator_traits<_RandomAccessIterator>::value_type, + typename std::iterator_traits<_RandomAccessIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + return std::__is_heap(__first, __comp, __last - __first); + } +#endif + +#if __cplusplus >= 201103L + using std::is_sorted; +#else + // is_sorted, a predicated testing whether a range is sorted in + // nondescending order. This is an extension, not part of the C++ + // standard. + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + bool + is_sorted(_ForwardIterator __first, _ForwardIterator __last) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_LessThanComparableConcept< + typename std::iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return true; + + _ForwardIterator __next = __first; + for (++__next; __next != __last; __first = __next, ++__next) + if (*__next < *__first) + return false; + return true; + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + bool + is_sorted(_ForwardIterator __first, _ForwardIterator __last, + _StrictWeakOrdering __comp) + { + // concept requirements + __glibcxx_function_requires(_ForwardIteratorConcept<_ForwardIterator>) + __glibcxx_function_requires(_BinaryPredicateConcept<_StrictWeakOrdering, + typename std::iterator_traits<_ForwardIterator>::value_type, + typename std::iterator_traits<_ForwardIterator>::value_type>) + __glibcxx_requires_valid_range(__first, __last); + + if (__first == __last) + return true; + + _ForwardIterator __next = __first; + for (++__next; __next != __last; __first = __next, ++__next) + if (__comp(*__next, *__first)) + return false; + return true; + } +#endif // C++11 + + /** + * @brief Find the median of three values. + * @param __a A value. + * @param __b A value. + * @param __c A value. + * @return One of @p a, @p b or @p c. + * + * If @c {l,m,n} is some convolution of @p {a,b,c} such that @c l<=m<=n + * then the value returned will be @c m. + * This is an SGI extension. + * @ingroup SGIextensions + */ + template + const _Tp& + __median(const _Tp& __a, const _Tp& __b, const _Tp& __c) + { + // concept requirements + __glibcxx_function_requires(_LessThanComparableConcept<_Tp>) + if (__a < __b) + if (__b < __c) + return __b; + else if (__a < __c) + return __c; + else + return __a; + else if (__a < __c) + return __a; + else if (__b < __c) + return __c; + else + return __b; + } + + /** + * @brief Find the median of three values using a predicate for comparison. + * @param __a A value. + * @param __b A value. + * @param __c A value. + * @param __comp A binary predicate. + * @return One of @p a, @p b or @p c. + * + * If @c {l,m,n} is some convolution of @p {a,b,c} such that @p comp(l,m) + * and @p comp(m,n) are both true then the value returned will be @c m. + * This is an SGI extension. + * @ingroup SGIextensions + */ + template + const _Tp& + __median(const _Tp& __a, const _Tp& __b, const _Tp& __c, _Compare __comp) + { + // concept requirements + __glibcxx_function_requires(_BinaryFunctionConcept<_Compare, bool, + _Tp, _Tp>) + if (__comp(__a, __b)) + if (__comp(__b, __c)) + return __b; + else if (__comp(__a, __c)) + return __c; + else + return __a; + else if (__comp(__a, __c)) + return __a; + else if (__comp(__b, __c)) + return __c; + else + return __b; + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _EXT_ALGORITHM */ diff --git a/resources/sources/avr-libstdcpp/include/ext/aligned_buffer.h b/resources/sources/avr-libstdcpp/include/ext/aligned_buffer.h new file mode 100644 index 000000000..667a9c084 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/aligned_buffer.h @@ -0,0 +1,125 @@ +// Aligned memory buffer -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/aligned_buffer.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _ALIGNED_BUFFER_H +#define _ALIGNED_BUFFER_H 1 + +#pragma GCC system_header + +#if __cplusplus >= 201103L +# include +#else +# include +#endif + +namespace __gnu_cxx +{ + // A utility type containing a POD object that can hold an object of type + // _Tp initialized via placement new or allocator_traits::construct. + // Intended for use as a data member subobject, use __aligned_buffer for + // complete objects. + template + struct __aligned_membuf + { + // Target macro ADJUST_FIELD_ALIGN can produce different alignment for + // types when used as class members. __aligned_membuf is intended + // for use as a class member, so align the buffer as for a class member. + // Since GCC 8 we could just use alignof(_Tp) instead, but older + // versions of non-GNU compilers might still need this trick. + struct _Tp2 { _Tp _M_t; }; + + alignas(__alignof__(_Tp2::_M_t)) unsigned char _M_storage[sizeof(_Tp)]; + + __aligned_membuf() = default; + + // Can be used to avoid value-initialization zeroing _M_storage. + __aligned_membuf(std::nullptr_t) { } + + void* + _M_addr() noexcept + { return static_cast(&_M_storage); } + + const void* + _M_addr() const noexcept + { return static_cast(&_M_storage); } + + _Tp* + _M_ptr() noexcept + { return static_cast<_Tp*>(_M_addr()); } + + const _Tp* + _M_ptr() const noexcept + { return static_cast(_M_addr()); } + }; + +#if _GLIBCXX_INLINE_VERSION + template + using __aligned_buffer = __aligned_membuf<_Tp>; +#else + // Similar to __aligned_membuf but aligned for complete objects, not members. + // This type is used in , , + // and , but ideally they would use __aligned_membuf + // instead, as it has smaller size for some types on some targets. + // This type is still used to avoid an ABI change. + template + struct __aligned_buffer + : std::aligned_storage + { + typename + std::aligned_storage::type _M_storage; + + __aligned_buffer() = default; + + // Can be used to avoid value-initialization + __aligned_buffer(std::nullptr_t) { } + + void* + _M_addr() noexcept + { + return static_cast(&_M_storage); + } + + const void* + _M_addr() const noexcept + { + return static_cast(&_M_storage); + } + + _Tp* + _M_ptr() noexcept + { return static_cast<_Tp*>(_M_addr()); } + + const _Tp* + _M_ptr() const noexcept + { return static_cast(_M_addr()); } + }; +#endif + +} // namespace + +#endif /* _ALIGNED_BUFFER_H */ diff --git a/resources/sources/avr-libstdcpp/include/ext/alloc_traits.h b/resources/sources/avr-libstdcpp/include/ext/alloc_traits.h new file mode 100644 index 000000000..3bbef9ec5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/alloc_traits.h @@ -0,0 +1,171 @@ +// Allocator traits -*- C++ -*- + +// Copyright (C) 2011-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/alloc_traits.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _EXT_ALLOC_TRAITS_H +#define _EXT_ALLOC_TRAITS_H 1 + +#pragma GCC system_header + +# include +#if __cplusplus < 201103L +# include // for __alloc_swap +#endif + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +/** + * @brief Uniform interface to C++98 and C++11 allocators. + * @ingroup allocators +*/ +template + struct __alloc_traits +#if __cplusplus >= 201103L + : std::allocator_traits<_Alloc> +#endif + { + typedef _Alloc allocator_type; +#if __cplusplus >= 201103L + typedef std::allocator_traits<_Alloc> _Base_type; + typedef typename _Base_type::value_type value_type; + typedef typename _Base_type::pointer pointer; + typedef typename _Base_type::const_pointer const_pointer; + typedef typename _Base_type::size_type size_type; + typedef typename _Base_type::difference_type difference_type; + // C++11 allocators do not define reference or const_reference + typedef value_type& reference; + typedef const value_type& const_reference; + using _Base_type::allocate; + using _Base_type::deallocate; + using _Base_type::construct; + using _Base_type::destroy; + using _Base_type::max_size; + + private: + template + using __is_custom_pointer + = std::__and_, + std::__not_>>; + + public: + // overload construct for non-standard pointer types + template + static _GLIBCXX14_CONSTEXPR + std::__enable_if_t<__is_custom_pointer<_Ptr>::value> + construct(_Alloc& __a, _Ptr __p, _Args&&... __args) + noexcept(noexcept(_Base_type::construct(__a, std::__to_address(__p), + std::forward<_Args>(__args)...))) + { + _Base_type::construct(__a, std::__to_address(__p), + std::forward<_Args>(__args)...); + } + + // overload destroy for non-standard pointer types + template + static _GLIBCXX14_CONSTEXPR + std::__enable_if_t<__is_custom_pointer<_Ptr>::value> + destroy(_Alloc& __a, _Ptr __p) + noexcept(noexcept(_Base_type::destroy(__a, std::__to_address(__p)))) + { _Base_type::destroy(__a, std::__to_address(__p)); } + + static constexpr _Alloc _S_select_on_copy(const _Alloc& __a) + { return _Base_type::select_on_container_copy_construction(__a); } + + static _GLIBCXX14_CONSTEXPR void _S_on_swap(_Alloc& __a, _Alloc& __b) + { std::__alloc_on_swap(__a, __b); } + + static constexpr bool _S_propagate_on_copy_assign() + { return _Base_type::propagate_on_container_copy_assignment::value; } + + static constexpr bool _S_propagate_on_move_assign() + { return _Base_type::propagate_on_container_move_assignment::value; } + + static constexpr bool _S_propagate_on_swap() + { return _Base_type::propagate_on_container_swap::value; } + + static constexpr bool _S_always_equal() + { return _Base_type::is_always_equal::value; } + + static constexpr bool _S_nothrow_move() + { return _S_propagate_on_move_assign() || _S_always_equal(); } + + template + struct rebind + { typedef typename _Base_type::template rebind_alloc<_Tp> other; }; +#else // ! C++11 + + typedef typename _Alloc::pointer pointer; + typedef typename _Alloc::const_pointer const_pointer; + typedef typename _Alloc::value_type value_type; + typedef typename _Alloc::reference reference; + typedef typename _Alloc::const_reference const_reference; + typedef typename _Alloc::size_type size_type; + typedef typename _Alloc::difference_type difference_type; + + _GLIBCXX_NODISCARD static pointer + allocate(_Alloc& __a, size_type __n) + { return __a.allocate(__n); } + + template + _GLIBCXX_NODISCARD static pointer + allocate(_Alloc& __a, size_type __n, _Hint __hint) + { return __a.allocate(__n, __hint); } + + static void deallocate(_Alloc& __a, pointer __p, size_type __n) + { __a.deallocate(__p, __n); } + + template + static void construct(_Alloc& __a, pointer __p, const _Tp& __arg) + { __a.construct(__p, __arg); } + + static void destroy(_Alloc& __a, pointer __p) + { __a.destroy(__p); } + + static size_type max_size(const _Alloc& __a) + { return __a.max_size(); } + + static const _Alloc& _S_select_on_copy(const _Alloc& __a) { return __a; } + + static void _S_on_swap(_Alloc& __a, _Alloc& __b) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 431. Swapping containers with unequal allocators. + std::__alloc_swap<_Alloc>::_S_do_it(__a, __b); + } + + template + struct rebind + { typedef typename _Alloc::template rebind<_Tp>::other other; }; +#endif // C++11 + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace __gnu_cxx + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/atomicity.h b/resources/sources/avr-libstdcpp/include/ext/atomicity.h new file mode 100644 index 000000000..581e0c92a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/atomicity.h @@ -0,0 +1,116 @@ +// Support for atomic operations -*- C++ -*- + +// Copyright (C) 2004-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/atomicity.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _GLIBCXX_ATOMICITY_H +#define _GLIBCXX_ATOMICITY_H 1 + +#pragma GCC system_header + +#include + +typedef int _Atomic_word; + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Functions for portable atomic access. + // To abstract locking primitives across all thread policies, use: + // __exchange_and_add_dispatch + // __atomic_add_dispatch +#ifdef _GLIBCXX_ATOMIC_BUILTINS + inline _Atomic_word + __attribute__((__always_inline__)) + __exchange_and_add(volatile _Atomic_word* __mem, int __val) + { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); } + + inline void + __attribute__((__always_inline__)) + __atomic_add(volatile _Atomic_word* __mem, int __val) + { __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); } +#else + _Atomic_word + __exchange_and_add(volatile _Atomic_word*, int) _GLIBCXX_NOTHROW; + + void + __atomic_add(volatile _Atomic_word*, int) _GLIBCXX_NOTHROW; +#endif + + inline _Atomic_word + __attribute__((__always_inline__)) + __exchange_and_add_single(_Atomic_word* __mem, int __val) + { + _Atomic_word __result = *__mem; + *__mem += __val; + return __result; + } + + inline void + __attribute__((__always_inline__)) + __atomic_add_single(_Atomic_word* __mem, int __val) + { *__mem += __val; } + + inline _Atomic_word + __attribute__ ((__always_inline__)) + __exchange_and_add_dispatch(_Atomic_word* __mem, int __val) + { +#ifdef __GTHREADS + if (__gthread_active_p()) + return __exchange_and_add(__mem, __val); +#endif + return __exchange_and_add_single(__mem, __val); + } + + inline void + __attribute__ ((__always_inline__)) + __atomic_add_dispatch(_Atomic_word* __mem, int __val) + { +#ifdef __GTHREADS + if (__gthread_active_p()) + { + __atomic_add(__mem, __val); + return; + } +#endif + __atomic_add_single(__mem, __val); + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +// Even if the CPU doesn't need a memory barrier, we need to ensure +// that the compiler doesn't reorder memory accesses across the +// barriers. +#ifndef _GLIBCXX_READ_MEM_BARRIER +#define _GLIBCXX_READ_MEM_BARRIER __atomic_thread_fence (__ATOMIC_ACQUIRE) +#endif +#ifndef _GLIBCXX_WRITE_MEM_BARRIER +#define _GLIBCXX_WRITE_MEM_BARRIER __atomic_thread_fence (__ATOMIC_RELEASE) +#endif + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/cmath b/resources/sources/avr-libstdcpp/include/ext/cmath new file mode 100644 index 000000000..09c6e44b8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/cmath @@ -0,0 +1,152 @@ +// Math extensions -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/cmath + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _EXT_CMATH +#define _EXT_CMATH 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // A class for math constants. + template + struct __math_constants + { + static_assert(std::is_floating_point<_RealType>::value, + "template argument not a floating point type"); + + // Constant @f$ \pi @f$. + static constexpr _RealType __pi = 3.1415926535897932384626433832795029L; + // Constant @f$ \pi / 2 @f$. + static constexpr _RealType __pi_half = 1.5707963267948966192313216916397514L; + // Constant @f$ \pi / 3 @f$. + static constexpr _RealType __pi_third = 1.0471975511965977461542144610931676L; + // Constant @f$ \pi / 4 @f$. + static constexpr _RealType __pi_quarter = 0.7853981633974483096156608458198757L; + // Constant @f$ \sqrt(\pi / 2) @f$. + static constexpr _RealType __root_pi_div_2 = 1.2533141373155002512078826424055226L; + // Constant @f$ 1 / \pi @f$. + static constexpr _RealType __one_div_pi = 0.3183098861837906715377675267450287L; + // Constant @f$ 2 / \pi @f$. + static constexpr _RealType __two_div_pi = 0.6366197723675813430755350534900574L; + // Constant @f$ 2 / \sqrt(\pi) @f$. + static constexpr _RealType __two_div_root_pi = 1.1283791670955125738961589031215452L; + + // Constant Euler's number @f$ e @f$. + static constexpr _RealType __e = 2.7182818284590452353602874713526625L; + // Constant @f$ 1 / e @f$. + static constexpr _RealType __one_div_e = 0.36787944117144232159552377016146087L; + // Constant @f$ \log_2(e) @f$. + static constexpr _RealType __log2_e = 1.4426950408889634073599246810018921L; + // Constant @f$ \log_10(e) @f$. + static constexpr _RealType __log10_e = 0.4342944819032518276511289189166051L; + // Constant @f$ \ln(2) @f$. + static constexpr _RealType __ln_2 = 0.6931471805599453094172321214581766L; + // Constant @f$ \ln(3) @f$. + static constexpr _RealType __ln_3 = 1.0986122886681096913952452369225257L; + // Constant @f$ \ln(10) @f$. + static constexpr _RealType __ln_10 = 2.3025850929940456840179914546843642L; + + // Constant Euler-Mascheroni @f$ \gamma_E @f$. + static constexpr _RealType __gamma_e = 0.5772156649015328606065120900824024L; + // Constant Golden Ratio @f$ \phi @f$. + static constexpr _RealType __phi = 1.6180339887498948482045868343656381L; + + // Constant @f$ \sqrt(2) @f$. + static constexpr _RealType __root_2 = 1.4142135623730950488016887242096981L; + // Constant @f$ \sqrt(3) @f$. + static constexpr _RealType __root_3 = 1.7320508075688772935274463415058724L; + // Constant @f$ \sqrt(5) @f$. + static constexpr _RealType __root_5 = 2.2360679774997896964091736687312762L; + // Constant @f$ \sqrt(7) @f$. + static constexpr _RealType __root_7 = 2.6457513110645905905016157536392604L; + // Constant @f$ 1 / \sqrt(2) @f$. + static constexpr _RealType __one_div_root_2 = 0.7071067811865475244008443621048490L; + }; + + // And the template definitions for the constants. + template + constexpr _RealType __math_constants<_RealType>::__pi; + template + constexpr _RealType __math_constants<_RealType>::__pi_half; + template + constexpr _RealType __math_constants<_RealType>::__pi_third; + template + constexpr _RealType __math_constants<_RealType>::__pi_quarter; + template + constexpr _RealType __math_constants<_RealType>::__root_pi_div_2; + template + constexpr _RealType __math_constants<_RealType>::__one_div_pi; + template + constexpr _RealType __math_constants<_RealType>::__two_div_pi; + template + constexpr _RealType __math_constants<_RealType>::__two_div_root_pi; + template + constexpr _RealType __math_constants<_RealType>::__e; + template + constexpr _RealType __math_constants<_RealType>::__one_div_e; + template + constexpr _RealType __math_constants<_RealType>::__log2_e; + template + constexpr _RealType __math_constants<_RealType>::__log10_e; + template + constexpr _RealType __math_constants<_RealType>::__ln_2; + template + constexpr _RealType __math_constants<_RealType>::__ln_3; + template + constexpr _RealType __math_constants<_RealType>::__ln_10; + template + constexpr _RealType __math_constants<_RealType>::__gamma_e; + template + constexpr _RealType __math_constants<_RealType>::__phi; + template + constexpr _RealType __math_constants<_RealType>::__root_2; + template + constexpr _RealType __math_constants<_RealType>::__root_3; + template + constexpr _RealType __math_constants<_RealType>::__root_5; + template + constexpr _RealType __math_constants<_RealType>::__root_7; + template + constexpr _RealType __math_constants<_RealType>::__one_div_root_2; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace __gnu_cxx + +#endif // C++11 + +#endif // _EXT_CMATH diff --git a/resources/sources/avr-libstdcpp/include/ext/functional b/resources/sources/avr-libstdcpp/include/ext/functional new file mode 100644 index 000000000..4f50a6003 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/functional @@ -0,0 +1,422 @@ +// Functional extensions -*- C++ -*- + +// Copyright (C) 2002-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file ext/functional + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _EXT_FUNCTIONAL +#define _EXT_FUNCTIONAL 1 + +#pragma GCC system_header + +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** The @c identity_element functions are not part of the C++ + * standard; SGI provided them as an extension. Its argument is an + * operation, and its return value is the identity element for that + * operation. It is overloaded for addition and multiplication, + * and you can overload it for your own nefarious operations. + * + * @addtogroup SGIextensions + * @{ + */ + /// An \link SGIextensions SGI extension \endlink. + template + inline _Tp + identity_element(std::plus<_Tp>) + { return _Tp(0); } + + /// An \link SGIextensions SGI extension \endlink. + template + inline _Tp + identity_element(std::multiplies<_Tp>) + { return _Tp(1); } + /** @} */ + + /** As an extension to the binders, SGI provided composition functors and + * wrapper functions to aid in their creation. The @c unary_compose + * functor is constructed from two functions/functors, @c f and @c g. + * Calling @c operator() with a single argument @c x returns @c f(g(x)). + * The function @c compose1 takes the two functions and constructs a + * @c unary_compose variable for you. + * + * @c binary_compose is constructed from three functors, @c f, @c g1, + * and @c g2. Its @c operator() returns @c f(g1(x),g2(x)). The function + * compose2 takes f, g1, and g2, and constructs the @c binary_compose + * instance for you. For example, if @c f returns an int, then + * \code + * int answer = (compose2(f,g1,g2))(x); + * \endcode + * is equivalent to + * \code + * int temp1 = g1(x); + * int temp2 = g2(x); + * int answer = f(temp1,temp2); + * \endcode + * But the first form is more compact, and can be passed around as a + * functor to other algorithms. + * + * @addtogroup SGIextensions + * @{ + */ + /// An \link SGIextensions SGI extension \endlink. + template + class unary_compose + : public std::unary_function + { + protected: + _Operation1 _M_fn1; + _Operation2 _M_fn2; + + public: + unary_compose(const _Operation1& __x, const _Operation2& __y) + : _M_fn1(__x), _M_fn2(__y) {} + + typename _Operation1::result_type + operator()(const typename _Operation2::argument_type& __x) const + { return _M_fn1(_M_fn2(__x)); } + }; + + /// An \link SGIextensions SGI extension \endlink. + template + inline unary_compose<_Operation1, _Operation2> + compose1(const _Operation1& __fn1, const _Operation2& __fn2) + { return unary_compose<_Operation1,_Operation2>(__fn1, __fn2); } + + /// An \link SGIextensions SGI extension \endlink. + template + class binary_compose + : public std::unary_function + { + protected: + _Operation1 _M_fn1; + _Operation2 _M_fn2; + _Operation3 _M_fn3; + + public: + binary_compose(const _Operation1& __x, const _Operation2& __y, + const _Operation3& __z) + : _M_fn1(__x), _M_fn2(__y), _M_fn3(__z) { } + + typename _Operation1::result_type + operator()(const typename _Operation2::argument_type& __x) const + { return _M_fn1(_M_fn2(__x), _M_fn3(__x)); } + }; + + /// An \link SGIextensions SGI extension \endlink. + template + inline binary_compose<_Operation1, _Operation2, _Operation3> + compose2(const _Operation1& __fn1, const _Operation2& __fn2, + const _Operation3& __fn3) + { return binary_compose<_Operation1, _Operation2, _Operation3> + (__fn1, __fn2, __fn3); } + /** @} */ + + /** As an extension, SGI provided a functor called @c identity. When a + * functor is required but no operations are desired, this can be used as a + * pass-through. Its @c operator() returns its argument unchanged. + * + * @addtogroup SGIextensions + */ + template + struct identity + : public std::_Identity<_Tp> {}; + + /** @c select1st and @c select2nd are extensions provided by SGI. Their + * @c operator()s + * take a @c std::pair as an argument, and return either the first member + * or the second member, respectively. They can be used (especially with + * the composition functors) to @a strip data from a sequence before + * performing the remainder of an algorithm. + * + * @addtogroup SGIextensions + * @{ + */ + /// An \link SGIextensions SGI extension \endlink. + template + struct select1st + : public std::_Select1st<_Pair> {}; + + /// An \link SGIextensions SGI extension \endlink. + template + struct select2nd + : public std::_Select2nd<_Pair> {}; + + /** @} */ + + // extension documented next + template + struct _Project1st : public std::binary_function<_Arg1, _Arg2, _Arg1> + { + _Arg1 + operator()(const _Arg1& __x, const _Arg2&) const + { return __x; } + }; + + template + struct _Project2nd : public std::binary_function<_Arg1, _Arg2, _Arg2> + { + _Arg2 + operator()(const _Arg1&, const _Arg2& __y) const + { return __y; } + }; + + /** The @c operator() of the @c project1st functor takes two arbitrary + * arguments and returns the first one, while @c project2nd returns the + * second one. They are extensions provided by SGI. + * + * @addtogroup SGIextensions + * @{ + */ + + /// An \link SGIextensions SGI extension \endlink. + template + struct project1st : public _Project1st<_Arg1, _Arg2> {}; + + /// An \link SGIextensions SGI extension \endlink. + template + struct project2nd : public _Project2nd<_Arg1, _Arg2> {}; + /** @} */ + + // extension documented next + template + struct _Constant_void_fun + { + typedef _Result result_type; + result_type _M_val; + + _Constant_void_fun(const result_type& __v) : _M_val(__v) {} + + const result_type& + operator()() const + { return _M_val; } + }; + + template + struct _Constant_unary_fun + { + typedef _Argument argument_type; + typedef _Result result_type; + result_type _M_val; + + _Constant_unary_fun(const result_type& __v) : _M_val(__v) {} + + const result_type& + operator()(const _Argument&) const + { return _M_val; } + }; + + template + struct _Constant_binary_fun + { + typedef _Arg1 first_argument_type; + typedef _Arg2 second_argument_type; + typedef _Result result_type; + _Result _M_val; + + _Constant_binary_fun(const _Result& __v) : _M_val(__v) {} + + const result_type& + operator()(const _Arg1&, const _Arg2&) const + { return _M_val; } + }; + + /** These three functors are each constructed from a single arbitrary + * variable/value. Later, their @c operator()s completely ignore any + * arguments passed, and return the stored value. + * - @c constant_void_fun's @c operator() takes no arguments + * - @c constant_unary_fun's @c operator() takes one argument (ignored) + * - @c constant_binary_fun's @c operator() takes two arguments (ignored) + * + * The helper creator functions @c constant0, @c constant1, and + * @c constant2 each take a @a result argument and construct variables of + * the appropriate functor type. + * + * @addtogroup SGIextensions + * @{ + */ + /// An \link SGIextensions SGI extension \endlink. + template + struct constant_void_fun + : public _Constant_void_fun<_Result> + { + constant_void_fun(const _Result& __v) + : _Constant_void_fun<_Result>(__v) {} + }; + + /// An \link SGIextensions SGI extension \endlink. + template + struct constant_unary_fun : public _Constant_unary_fun<_Result, _Argument> + { + constant_unary_fun(const _Result& __v) + : _Constant_unary_fun<_Result, _Argument>(__v) {} + }; + + /// An \link SGIextensions SGI extension \endlink. + template + struct constant_binary_fun + : public _Constant_binary_fun<_Result, _Arg1, _Arg2> + { + constant_binary_fun(const _Result& __v) + : _Constant_binary_fun<_Result, _Arg1, _Arg2>(__v) {} + }; + + /// An \link SGIextensions SGI extension \endlink. + template + inline constant_void_fun<_Result> + constant0(const _Result& __val) + { return constant_void_fun<_Result>(__val); } + + /// An \link SGIextensions SGI extension \endlink. + template + inline constant_unary_fun<_Result, _Result> + constant1(const _Result& __val) + { return constant_unary_fun<_Result, _Result>(__val); } + + /// An \link SGIextensions SGI extension \endlink. + template + inline constant_binary_fun<_Result,_Result,_Result> + constant2(const _Result& __val) + { return constant_binary_fun<_Result, _Result, _Result>(__val); } + /** @} */ + + /** The @c subtractive_rng class is documented on + * SGI's site. + * Note that this code assumes that @c int is 32 bits. + * + * @ingroup SGIextensions + */ + class subtractive_rng + : public std::unary_function + { + private: + unsigned int _M_table[55]; + std::size_t _M_index1; + std::size_t _M_index2; + + public: + /// Returns a number less than the argument. + unsigned int + operator()(unsigned int __limit) + { + _M_index1 = (_M_index1 + 1) % 55; + _M_index2 = (_M_index2 + 1) % 55; + _M_table[_M_index1] = _M_table[_M_index1] - _M_table[_M_index2]; + return _M_table[_M_index1] % __limit; + } + + void + _M_initialize(unsigned int __seed) + { + unsigned int __k = 1; + _M_table[54] = __seed; + std::size_t __i; + for (__i = 0; __i < 54; __i++) + { + std::size_t __ii = (21 * (__i + 1) % 55) - 1; + _M_table[__ii] = __k; + __k = __seed - __k; + __seed = _M_table[__ii]; + } + for (int __loop = 0; __loop < 4; __loop++) + { + for (__i = 0; __i < 55; __i++) + _M_table[__i] = _M_table[__i] - _M_table[(1 + __i + 30) % 55]; + } + _M_index1 = 0; + _M_index2 = 31; + } + + /// Ctor allowing you to initialize the seed. + subtractive_rng(unsigned int __seed) + { _M_initialize(__seed); } + + /// Default ctor; initializes its state with some number you don't see. + subtractive_rng() + { _M_initialize(161803398u); } + }; + + // Mem_fun adaptor helper functions mem_fun1 and mem_fun1_ref, + // provided for backward compatibility, they are no longer part of + // the C++ standard. + + template + inline std::mem_fun1_t<_Ret, _Tp, _Arg> + mem_fun1(_Ret (_Tp::*__f)(_Arg)) + { return std::mem_fun1_t<_Ret, _Tp, _Arg>(__f); } + + template + inline std::const_mem_fun1_t<_Ret, _Tp, _Arg> + mem_fun1(_Ret (_Tp::*__f)(_Arg) const) + { return std::const_mem_fun1_t<_Ret, _Tp, _Arg>(__f); } + + template + inline std::mem_fun1_ref_t<_Ret, _Tp, _Arg> + mem_fun1_ref(_Ret (_Tp::*__f)(_Arg)) + { return std::mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); } + + template + inline std::const_mem_fun1_ref_t<_Ret, _Tp, _Arg> + mem_fun1_ref(_Ret (_Tp::*__f)(_Arg) const) + { return std::const_mem_fun1_ref_t<_Ret, _Tp, _Arg>(__f); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/ext/hash_map b/resources/sources/avr-libstdcpp/include/ext/hash_map new file mode 100644 index 000000000..93db70d56 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/hash_map @@ -0,0 +1,599 @@ +// Hashing map implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hash_map + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASH_MAP +#define _BACKWARD_HASH_MAP 1 + +#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH +#include +#endif + +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::equal_to; + using std::allocator; + using std::pair; + using std::_Select1st; + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Key>, class _Alloc = allocator<_Tp> > + class hash_map + { + private: + typedef hashtable,_Key, _HashFn, + _Select1st >, + _EqualKey, _Alloc> _Ht; + + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef _Tp data_type; + typedef _Tp mapped_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Ht::pointer pointer; + typedef typename _Ht::const_pointer const_pointer; + typedef typename _Ht::reference reference; + typedef typename _Ht::const_reference const_reference; + + typedef typename _Ht::iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_map() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_map(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_map(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_map(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_map(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_map(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_map(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_map(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_unique(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_map& __hs) + { _M_ht.swap(__hs._M_ht); } + + template + friend bool + operator== (const hash_map<_K1, _T1, _HF, _EqK, _Al>&, + const hash_map<_K1, _T1, _HF, _EqK, _Al>&); + + iterator + begin() + { return _M_ht.begin(); } + + iterator + end() + { return _M_ht.end(); } + + const_iterator + begin() const + { return _M_ht.begin(); } + + const_iterator + end() const + { return _M_ht.end(); } + + pair + insert(const value_type& __obj) + { return _M_ht.insert_unique(__obj); } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_unique(__f, __l); } + + pair + insert_noresize(const value_type& __obj) + { return _M_ht.insert_unique_noresize(__obj); } + + iterator + find(const key_type& __key) + { return _M_ht.find(__key); } + + const_iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + _Tp& + operator[](const key_type& __key) + { return _M_ht.find_or_insert(value_type(__key, _Tp())).second; } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) + { return _M_ht.equal_range(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + {return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { return __hm1._M_ht == __hm2._M_ht; } + + template + inline bool + operator!=(const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + const hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { return !(__hm1 == __hm2); } + + template + inline void + swap(hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + hash_map<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { __hm1.swap(__hm2); } + + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Key>, + class _Alloc = allocator<_Tp> > + class hash_multimap + { + // concept requirements + __glibcxx_class_requires(_Key, _SGIAssignableConcept) + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) + __glibcxx_class_requires3(_HashFn, size_t, _Key, _UnaryFunctionConcept) + __glibcxx_class_requires3(_EqualKey, _Key, _Key, _BinaryPredicateConcept) + + private: + typedef hashtable, _Key, _HashFn, + _Select1st >, _EqualKey, _Alloc> + _Ht; + + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef _Tp data_type; + typedef _Tp mapped_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Ht::pointer pointer; + typedef typename _Ht::const_pointer const_pointer; + typedef typename _Ht::reference reference; + typedef typename _Ht::const_reference const_reference; + + typedef typename _Ht::iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_multimap() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_multimap(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_multimap(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_multimap(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_multimap(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_equal(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_multimap& __hs) + { _M_ht.swap(__hs._M_ht); } + + template + friend bool + operator==(const hash_multimap<_K1, _T1, _HF, _EqK, _Al>&, + const hash_multimap<_K1, _T1, _HF, _EqK, _Al>&); + + iterator + begin() + { return _M_ht.begin(); } + + iterator + end() + { return _M_ht.end(); } + + const_iterator + begin() const + { return _M_ht.begin(); } + + const_iterator + end() const + { return _M_ht.end(); } + + iterator + insert(const value_type& __obj) + { return _M_ht.insert_equal(__obj); } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_equal(__f,__l); } + + iterator + insert_noresize(const value_type& __obj) + { return _M_ht.insert_equal_noresize(__obj); } + + iterator + find(const key_type& __key) + { return _M_ht.find(__key); } + + const_iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) + { return _M_ht.equal_range(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + { return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm1, + const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm2) + { return __hm1._M_ht == __hm2._M_ht; } + + template + inline bool + operator!=(const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm1, + const hash_multimap<_Key, _Tp, _HF, _EqKey, _Alloc>& __hm2) + { return !(__hm1 == __hm2); } + + template + inline void + swap(hash_multimap<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm1, + hash_multimap<_Key, _Tp, _HashFn, _EqlKey, _Alloc>& __hm2) + { __hm1.swap(__hm2); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Specialization of insert_iterator so that it will work for hash_map + // and hash_multimap. + template + class insert_iterator<__gnu_cxx::hash_map<_Key, _Tp, _HashFn, + _EqKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> + _Container; + _Container* container; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + + template + class insert_iterator<__gnu_cxx::hash_multimap<_Key, _Tp, _HashFn, + _EqKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> + _Container; + _Container* container; + typename _Container::iterator iter; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/hash_set b/resources/sources/avr-libstdcpp/include/ext/hash_set new file mode 100644 index 000000000..0b99302af --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/hash_set @@ -0,0 +1,569 @@ +// Hashing set implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hash_set + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASH_SET +#define _BACKWARD_HASH_SET 1 + +#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH +#include +#endif + +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::equal_to; + using std::allocator; + using std::pair; + using std::_Identity; + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Value>, + class _Alloc = allocator<_Value> > + class hash_set + { + // concept requirements + __glibcxx_class_requires(_Value, _SGIAssignableConcept) + __glibcxx_class_requires3(_HashFcn, size_t, _Value, _UnaryFunctionConcept) + __glibcxx_class_requires3(_EqualKey, _Value, _Value, _BinaryPredicateConcept) + + typedef __alloc_traits<_Alloc> _Alloc_traits; + + private: + typedef hashtable<_Value, _Value, _HashFcn, _Identity<_Value>, + _EqualKey, _Alloc> _Ht; + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Alloc_traits::pointer pointer; + typedef typename _Alloc_traits::const_pointer const_pointer; + typedef typename _Alloc_traits::reference reference; + typedef typename _Alloc_traits::const_reference const_reference; + + typedef typename _Ht::const_iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_set() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_set(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_set(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_set(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_set(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_set(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_set(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_unique(__f, __l); } + + template + hash_set(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_unique(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_set& __hs) + { _M_ht.swap(__hs._M_ht); } + + template + friend bool + operator==(const hash_set<_Val, _HF, _EqK, _Al>&, + const hash_set<_Val, _HF, _EqK, _Al>&); + + iterator + begin() const + { return _M_ht.begin(); } + + iterator + end() const + { return _M_ht.end(); } + + pair + insert(const value_type& __obj) + { + pair __p = _M_ht.insert_unique(__obj); + return pair(__p.first, __p.second); + } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_unique(__f, __l); } + + pair + insert_noresize(const value_type& __obj) + { + pair __p + = _M_ht.insert_unique_noresize(__obj); + return pair(__p.first, __p.second); + } + + iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + {return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return __hs1._M_ht == __hs2._M_ht; } + + template + inline bool + operator!=(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return !(__hs1 == __hs2); } + + template + inline void + swap(hash_set<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + hash_set<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { __hs1.swap(__hs2); } + + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template, + class _EqualKey = equal_to<_Value>, + class _Alloc = allocator<_Value> > + class hash_multiset + { + // concept requirements + __glibcxx_class_requires(_Value, _SGIAssignableConcept) + __glibcxx_class_requires3(_HashFcn, size_t, _Value, _UnaryFunctionConcept) + __glibcxx_class_requires3(_EqualKey, _Value, _Value, _BinaryPredicateConcept) + + private: + typedef hashtable<_Value, _Value, _HashFcn, _Identity<_Value>, + _EqualKey, _Alloc> _Ht; + _Ht _M_ht; + + public: + typedef typename _Ht::key_type key_type; + typedef typename _Ht::value_type value_type; + typedef typename _Ht::hasher hasher; + typedef typename _Ht::key_equal key_equal; + + typedef typename _Ht::size_type size_type; + typedef typename _Ht::difference_type difference_type; + typedef typename _Alloc::pointer pointer; + typedef typename _Alloc::const_pointer const_pointer; + typedef typename _Alloc::reference reference; + typedef typename _Alloc::const_reference const_reference; + + typedef typename _Ht::const_iterator iterator; + typedef typename _Ht::const_iterator const_iterator; + + typedef typename _Ht::allocator_type allocator_type; + + hasher + hash_funct() const + { return _M_ht.hash_funct(); } + + key_equal + key_eq() const + { return _M_ht.key_eq(); } + + allocator_type + get_allocator() const + { return _M_ht.get_allocator(); } + + hash_multiset() + : _M_ht(100, hasher(), key_equal(), allocator_type()) {} + + explicit + hash_multiset(size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) {} + + hash_multiset(size_type __n, const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) {} + + hash_multiset(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) {} + + template + hash_multiset(_InputIterator __f, _InputIterator __l) + : _M_ht(100, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n) + : _M_ht(__n, hasher(), key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf) + : _M_ht(__n, __hf, key_equal(), allocator_type()) + { _M_ht.insert_equal(__f, __l); } + + template + hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a = allocator_type()) + : _M_ht(__n, __hf, __eql, __a) + { _M_ht.insert_equal(__f, __l); } + + size_type + size() const + { return _M_ht.size(); } + + size_type + max_size() const + { return _M_ht.max_size(); } + + _GLIBCXX_NODISCARD bool + empty() const + { return _M_ht.empty(); } + + void + swap(hash_multiset& hs) + { _M_ht.swap(hs._M_ht); } + + template + friend bool + operator==(const hash_multiset<_Val, _HF, _EqK, _Al>&, + const hash_multiset<_Val, _HF, _EqK, _Al>&); + + iterator + begin() const + { return _M_ht.begin(); } + + iterator + end() const + { return _M_ht.end(); } + + iterator + insert(const value_type& __obj) + { return _M_ht.insert_equal(__obj); } + + template + void + insert(_InputIterator __f, _InputIterator __l) + { _M_ht.insert_equal(__f,__l); } + + iterator + insert_noresize(const value_type& __obj) + { return _M_ht.insert_equal_noresize(__obj); } + + iterator + find(const key_type& __key) const + { return _M_ht.find(__key); } + + size_type + count(const key_type& __key) const + { return _M_ht.count(__key); } + + pair + equal_range(const key_type& __key) const + { return _M_ht.equal_range(__key); } + + size_type + erase(const key_type& __key) + { return _M_ht.erase(__key); } + + void + erase(iterator __it) + { _M_ht.erase(__it); } + + void + erase(iterator __f, iterator __l) + { _M_ht.erase(__f, __l); } + + void + clear() + { _M_ht.clear(); } + + void + resize(size_type __hint) + { _M_ht.resize(__hint); } + + size_type + bucket_count() const + { return _M_ht.bucket_count(); } + + size_type + max_bucket_count() const + { return _M_ht.max_bucket_count(); } + + size_type + elems_in_bucket(size_type __n) const + { return _M_ht.elems_in_bucket(__n); } + }; + + template + inline bool + operator==(const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return __hs1._M_ht == __hs2._M_ht; } + + template + inline bool + operator!=(const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { return !(__hs1 == __hs2); } + + template + inline void + swap(hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1, + hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2) + { __hs1.swap(__hs2); } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Specialization of insert_iterator so that it will work for hash_set + // and hash_multiset. + template + class insert_iterator<__gnu_cxx::hash_set<_Value, _HashFcn, + _EqualKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc> + _Container; + _Container* container; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + + template + class insert_iterator<__gnu_cxx::hash_multiset<_Value, _HashFcn, + _EqualKey, _Alloc> > + { + protected: + typedef __gnu_cxx::hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc> + _Container; + _Container* container; + typename _Container::iterator iter; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x) + : container(&__x) {} + + insert_iterator(_Container& __x, typename _Container::iterator) + : container(&__x) {} + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + container->insert(__value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) { return *this; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/iterator b/resources/sources/avr-libstdcpp/include/ext/iterator new file mode 100644 index 000000000..acfb353a9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/iterator @@ -0,0 +1,116 @@ +// HP/SGI iterator extensions -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996-1998 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file ext/iterator + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _EXT_ITERATOR +#define _EXT_ITERATOR 1 + +#pragma GCC system_header + +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // There are two signatures for distance. In addition to the one + // taking two iterators and returning a result, there is another + // taking two iterators and a reference-to-result variable, and + // returning nothing. The latter seems to be an SGI extension. + // -- pedwards + template + inline void + __distance(_InputIterator __first, _InputIterator __last, + _Distance& __n, std::input_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>) + while (__first != __last) + { + ++__first; + ++__n; + } + } + + template + inline void + __distance(_RandomAccessIterator __first, _RandomAccessIterator __last, + _Distance& __n, std::random_access_iterator_tag) + { + // concept requirements + __glibcxx_function_requires(_RandomAccessIteratorConcept< + _RandomAccessIterator>) + __n += __last - __first; + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + inline void + distance(_InputIterator __first, _InputIterator __last, + _Distance& __n) + { + // concept requirements -- taken care of in __distance + __distance(__first, __last, __n, std::__iterator_category(__first)); + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/ext/malloc_allocator.h b/resources/sources/avr-libstdcpp/include/ext/malloc_allocator.h new file mode 100644 index 000000000..366c766f2 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/malloc_allocator.h @@ -0,0 +1,199 @@ +// Allocator that wraps "C" malloc -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/malloc_allocator.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _MALLOC_ALLOCATOR_H +#define _MALLOC_ALLOCATOR_H 1 + +#include +#include +#include +#include +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief An allocator that uses malloc. + * @ingroup allocators + * + * This is precisely the allocator defined in the C++ Standard. + * - all allocation calls malloc + * - all deallocation calls free + */ + template + class malloc_allocator + { + public: + typedef _Tp value_type; + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; +#if __cplusplus <= 201703L + typedef _Tp* pointer; + typedef const _Tp* const_pointer; + typedef _Tp& reference; + typedef const _Tp& const_reference; + + template + struct rebind + { typedef malloc_allocator<_Tp1> other; }; +#endif + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2103. propagate_on_container_move_assignment + typedef std::true_type propagate_on_container_move_assignment; +#endif + + _GLIBCXX20_CONSTEXPR + malloc_allocator() _GLIBCXX_USE_NOEXCEPT { } + + _GLIBCXX20_CONSTEXPR + malloc_allocator(const malloc_allocator&) _GLIBCXX_USE_NOEXCEPT { } + + template + _GLIBCXX20_CONSTEXPR + malloc_allocator(const malloc_allocator<_Tp1>&) + _GLIBCXX_USE_NOEXCEPT { } + +#if __cplusplus <= 201703L + ~malloc_allocator() _GLIBCXX_USE_NOEXCEPT { } + + pointer + address(reference __x) const _GLIBCXX_NOEXCEPT + { return std::__addressof(__x); } + + const_pointer + address(const_reference __x) const _GLIBCXX_NOEXCEPT + { return std::__addressof(__x); } +#endif + + // NB: __n is permitted to be 0. The C++ standard says nothing + // about what the return value is when __n == 0. + _Tp* + allocate(size_type __n, const void* = 0) + { + if (__n > this->_M_max_size()) + std::__throw_bad_alloc(); + + _Tp* __ret = 0; +#if __cpp_aligned_new +#if __cplusplus > 201402L && _GLIBCXX_HAVE_ALIGNED_ALLOC + if (alignof(_Tp) > alignof(std::max_align_t)) + { + __ret = static_cast<_Tp*>(::aligned_alloc(alignof(_Tp), + __n * sizeof(_Tp))); + } +#else +# define _GLIBCXX_CHECK_MALLOC_RESULT +#endif +#endif + if (!__ret) + __ret = static_cast<_Tp*>(std::malloc(__n * sizeof(_Tp))); + if (!__ret) + std::__throw_bad_alloc(); +#ifdef _GLIBCXX_CHECK_MALLOC_RESULT +#undef _GLIBCXX_CHECK_MALLOC_RESULT + if (reinterpret_cast(__ret) % alignof(_Tp)) + { + // Memory returned by malloc is not suitably aligned for _Tp. + deallocate(__ret, __n); + std::__throw_bad_alloc(); + } +#endif + return __ret; + } + + // __p is not permitted to be a null pointer. + void + deallocate(_Tp* __p, size_type) + { std::free(static_cast(__p)); } + +#if __cplusplus <= 201703L + size_type + max_size() const _GLIBCXX_USE_NOEXCEPT + { return _M_max_size(); } + +#if __cplusplus >= 201103L + template + void + construct(_Up* __p, _Args&&... __args) + noexcept(std::is_nothrow_constructible<_Up, _Args...>::value) + { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); } + + template + void + destroy(_Up* __p) + noexcept(std::is_nothrow_destructible<_Up>::value) + { __p->~_Up(); } +#else + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 402. wrong new expression in [some_] allocator::construct + void + construct(pointer __p, const _Tp& __val) + { ::new((void *)__p) value_type(__val); } + + void + destroy(pointer __p) { __p->~_Tp(); } +#endif +#endif // ! C++20 + + template + friend _GLIBCXX20_CONSTEXPR bool + operator==(const malloc_allocator&, const malloc_allocator<_Up>&) + _GLIBCXX_NOTHROW + { return true; } + +#if __cpp_impl_three_way_comparison < 201907L + template + friend _GLIBCXX20_CONSTEXPR bool + operator!=(const malloc_allocator&, const malloc_allocator<_Up>&) + _GLIBCXX_NOTHROW + { return false; } +#endif + + private: + _GLIBCXX_CONSTEXPR size_type + _M_max_size() const _GLIBCXX_USE_NOEXCEPT + { +#if __PTRDIFF_MAX__ < __SIZE_MAX__ + return std::size_t(__PTRDIFF_MAX__) / sizeof(_Tp); +#else + return std::size_t(-1) / sizeof(_Tp); +#endif + } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/memory b/resources/sources/avr-libstdcpp/include/ext/memory new file mode 100644 index 000000000..f590fd98c --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/memory @@ -0,0 +1,200 @@ +// Memory extensions -*- C++ -*- + +// Copyright (C) 2002-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file ext/memory + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _EXT_MEMORY +#define _EXT_MEMORY 1 + +#pragma GCC system_header + +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::_Temporary_buffer; + + template + std::pair<_InputIter, _ForwardIter> + __uninitialized_copy_n(_InputIter __first, _Size __count, + _ForwardIter __result, std::input_iterator_tag) + { + _ForwardIter __cur = __result; + __try + { + for (; __count > 0 ; --__count, ++__first, ++__cur) + std::_Construct(&*__cur, *__first); + return std::pair<_InputIter, _ForwardIter>(__first, __cur); + } + __catch(...) + { + std::_Destroy(__result, __cur); + __throw_exception_again; + } + } + + template + inline std::pair<_RandomAccessIter, _ForwardIter> + __uninitialized_copy_n(_RandomAccessIter __first, _Size __count, + _ForwardIter __result, + std::random_access_iterator_tag) + { + _RandomAccessIter __last = __first + __count; + return (std::pair<_RandomAccessIter, _ForwardIter> + (__last, std::uninitialized_copy(__first, __last, __result))); + } + + template + inline std::pair<_InputIter, _ForwardIter> + __uninitialized_copy_n(_InputIter __first, _Size __count, + _ForwardIter __result) + { + return __gnu_cxx::__uninitialized_copy_n(__first, __count, __result, + std::__iterator_category(__first)); + } + + /** + * @brief Copies the range [first,last) into result. + * @param __first An input iterator. + * @param __count Length + * @param __result An output iterator. + * @return __result + (__first + __count) + * @ingroup SGIextensions + * + * Like copy(), but does not require an initialized output range. + */ + template + inline std::pair<_InputIter, _ForwardIter> + uninitialized_copy_n(_InputIter __first, _Size __count, + _ForwardIter __result) + { + return __gnu_cxx::__uninitialized_copy_n(__first, __count, __result, + std::__iterator_category(__first)); + } + + + // An alternative version of uninitialized_copy_n that constructs + // and destroys objects with a user-provided allocator. + template + std::pair<_InputIter, _ForwardIter> + __uninitialized_copy_n_a(_InputIter __first, _Size __count, + _ForwardIter __result, + _Allocator __alloc) + { + _ForwardIter __cur = __result; + __try + { + for (; __count > 0 ; --__count, ++__first, ++__cur) + __alloc.construct(&*__cur, *__first); + return std::pair<_InputIter, _ForwardIter>(__first, __cur); + } + __catch(...) + { + std::_Destroy(__result, __cur, __alloc); + __throw_exception_again; + } + } + + template + inline std::pair<_InputIter, _ForwardIter> + __uninitialized_copy_n_a(_InputIter __first, _Size __count, + _ForwardIter __result, + std::allocator<_Tp>) + { + return __gnu_cxx::uninitialized_copy_n(__first, __count, __result); + } + + /** + * This class provides similar behavior and semantics of the standard + * functions get_temporary_buffer() and return_temporary_buffer(), but + * encapsulated in a type vaguely resembling a standard container. + * + * By default, a temporary_buffer stores space for objects of + * whatever type the Iter iterator points to. It is constructed from a + * typical [first,last) range, and provides the begin(), end(), size() + * functions, as well as requested_size(). For non-trivial types, copies + * of *first will be used to initialize the storage. + * + * @c malloc is used to obtain underlying storage. + * + * Like get_temporary_buffer(), not all the requested memory may be + * available. Ideally, the created buffer will be large enough to hold a + * copy of [first,last), but if size() is less than requested_size(), + * then this didn't happen. + * + * @ingroup SGIextensions + */ + template ::value_type > + struct temporary_buffer : public _Temporary_buffer<_ForwardIterator, _Tp> + { + /// Requests storage large enough to hold a copy of [first,last). + temporary_buffer(_ForwardIterator __first, _ForwardIterator __last) + : _Temporary_buffer<_ForwardIterator, _Tp>(__first, + std::distance(__first, __last)) + { } + + /// Destroys objects and frees storage. + ~temporary_buffer() { } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif + diff --git a/resources/sources/avr-libstdcpp/include/ext/new_allocator.h b/resources/sources/avr-libstdcpp/include/ext/new_allocator.h new file mode 100644 index 000000000..131718b8b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/new_allocator.h @@ -0,0 +1,198 @@ +// Allocator that wraps operator new -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/new_allocator.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _NEW_ALLOCATOR_H +#define _NEW_ALLOCATOR_H 1 + +#include +#include +#include +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief An allocator that uses global new, as per [20.4]. + * @ingroup allocators + * + * This is precisely the allocator defined in the C++ Standard. + * - all allocation calls operator new + * - all deallocation calls operator delete + * + * @tparam _Tp Type of allocated object. + */ + template + class new_allocator + { + public: + typedef _Tp value_type; + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; +#if __cplusplus <= 201703L + typedef _Tp* pointer; + typedef const _Tp* const_pointer; + typedef _Tp& reference; + typedef const _Tp& const_reference; + + template + struct rebind + { typedef new_allocator<_Tp1> other; }; +#endif + +#if __cplusplus >= 201103L + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2103. propagate_on_container_move_assignment + typedef std::true_type propagate_on_container_move_assignment; +#endif + + _GLIBCXX20_CONSTEXPR + new_allocator() _GLIBCXX_USE_NOEXCEPT { } + + _GLIBCXX20_CONSTEXPR + new_allocator(const new_allocator&) _GLIBCXX_USE_NOEXCEPT { } + + template + _GLIBCXX20_CONSTEXPR + new_allocator(const new_allocator<_Tp1>&) _GLIBCXX_USE_NOEXCEPT { } + +#if __cplusplus <= 201703L + ~new_allocator() _GLIBCXX_USE_NOEXCEPT { } + + pointer + address(reference __x) const _GLIBCXX_NOEXCEPT + { return std::__addressof(__x); } + + const_pointer + address(const_reference __x) const _GLIBCXX_NOEXCEPT + { return std::__addressof(__x); } +#endif + + // NB: __n is permitted to be 0. The C++ standard says nothing + // about what the return value is when __n == 0. + _GLIBCXX_NODISCARD _Tp* + allocate(size_type __n, const void* = static_cast(0)) + { + if (__n > this->_M_max_size()) + std::__throw_bad_alloc(); + +#if __cpp_aligned_new + if (alignof(_Tp) > __STDCPP_DEFAULT_NEW_ALIGNMENT__) + { + std::align_val_t __al = std::align_val_t(alignof(_Tp)); + return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp), __al)); + } +#endif + return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp))); + } + + // __p is not permitted to be a null pointer. + void + deallocate(_Tp* __p, size_type __t) + { +#if __cpp_aligned_new + if (alignof(_Tp) > __STDCPP_DEFAULT_NEW_ALIGNMENT__) + { + ::operator delete(__p, +# if __cpp_sized_deallocation + __t * sizeof(_Tp), +# endif + std::align_val_t(alignof(_Tp))); + return; + } +#endif + ::operator delete(__p +#if __cpp_sized_deallocation + , __t * sizeof(_Tp) +#endif + ); + } + +#if __cplusplus <= 201703L + size_type + max_size() const _GLIBCXX_USE_NOEXCEPT + { return _M_max_size(); } + +#if __cplusplus >= 201103L + template + void + construct(_Up* __p, _Args&&... __args) + noexcept(std::is_nothrow_constructible<_Up, _Args...>::value) + { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); } + + template + void + destroy(_Up* __p) + noexcept(std::is_nothrow_destructible<_Up>::value) + { __p->~_Up(); } +#else + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 402. wrong new expression in [some_] allocator::construct + void + construct(pointer __p, const _Tp& __val) + { ::new((void *)__p) _Tp(__val); } + + void + destroy(pointer __p) { __p->~_Tp(); } +#endif +#endif // ! C++20 + + template + friend _GLIBCXX20_CONSTEXPR bool + operator==(const new_allocator&, const new_allocator<_Up>&) + _GLIBCXX_NOTHROW + { return true; } + +#if __cpp_impl_three_way_comparison < 201907L + template + friend _GLIBCXX20_CONSTEXPR bool + operator!=(const new_allocator&, const new_allocator<_Up>&) + _GLIBCXX_NOTHROW + { return false; } +#endif + + private: + _GLIBCXX_CONSTEXPR size_type + _M_max_size() const _GLIBCXX_USE_NOEXCEPT + { +#if __PTRDIFF_MAX__ < __SIZE_MAX__ + return std::size_t(__PTRDIFF_MAX__) / sizeof(_Tp); +#else + return std::size_t(-1) / sizeof(_Tp); +#endif + } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/numeric b/resources/sources/avr-libstdcpp/include/ext/numeric new file mode 100644 index 000000000..f437ecafd --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/numeric @@ -0,0 +1,152 @@ +// Numeric extensions -*- C++ -*- + +// Copyright (C) 2002-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file ext/numeric + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _EXT_NUMERIC +#define _EXT_NUMERIC 1 + +#pragma GCC system_header + +#include +#include + +#include // For identity_element + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Returns __x ** __n, where __n >= 0. _Note that "multiplication" + // is required to be associative, but not necessarily commutative. + template + _Tp + __power(_Tp __x, _Integer __n, _MonoidOperation __monoid_op) + { + if (__n == 0) + return identity_element(__monoid_op); + else + { + while ((__n & 1) == 0) + { + __n >>= 1; + __x = __monoid_op(__x, __x); + } + + _Tp __result = __x; + __n >>= 1; + while (__n != 0) + { + __x = __monoid_op(__x, __x); + if ((__n & 1) != 0) + __result = __monoid_op(__result, __x); + __n >>= 1; + } + return __result; + } + } + + template + inline _Tp + __power(_Tp __x, _Integer __n) + { return __power(__x, __n, std::multiplies<_Tp>()); } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + // Alias for the internal name __power. Note that power is an extension, + // not part of the C++ standard. + template + inline _Tp + power(_Tp __x, _Integer __n, _MonoidOperation __monoid_op) + { return __power(__x, __n, __monoid_op); } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template + inline _Tp + power(_Tp __x, _Integer __n) + { return __power(__x, __n); } + +#if __cplusplus >= 201103L + using std::iota; +#else + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + // iota is not part of the standard until C++11. It is an extension. + template + void + iota(_ForwardIter __first, _ForwardIter __last, _Tp __value) + { + // concept requirements + __glibcxx_function_requires(_Mutable_ForwardIteratorConcept<_ForwardIter>) + __glibcxx_function_requires(_ConvertibleConcept<_Tp, + typename std::iterator_traits<_ForwardIter>::value_type>) + + while (__first != __last) + *__first++ = __value++; + } +#endif // C++11 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/numeric_traits.h b/resources/sources/avr-libstdcpp/include/ext/numeric_traits.h new file mode 100644 index 000000000..69f286d7b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/numeric_traits.h @@ -0,0 +1,148 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License as published by the Free Software +// Foundation; either version 3, or (at your option) any later +// version. + +// This library is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/numeric_traits.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _EXT_NUMERIC_TRAITS +#define _EXT_NUMERIC_TRAITS 1 + +#pragma GCC system_header + +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Compile time constants for builtin types. + // In C++98 std::numeric_limits member functions cannot be used for this. +#define __glibcxx_signed(_Tp) ((_Tp)(-1) < 0) +#define __glibcxx_digits(_Tp) \ + (sizeof(_Tp) * __CHAR_BIT__ - __glibcxx_signed(_Tp)) + +#define __glibcxx_min(_Tp) \ + (__glibcxx_signed(_Tp) ? -__glibcxx_max(_Tp) - 1 : (_Tp)0) + +#define __glibcxx_max(_Tp) \ + (__glibcxx_signed(_Tp) ? \ + (((((_Tp)1 << (__glibcxx_digits(_Tp) - 1)) - 1) << 1) + 1) : ~(_Tp)0) + + template + struct __numeric_traits_integer + { +#if __cplusplus >= 201103L + static_assert(std::__is_integer<_Value>::__value, + "invalid specialization"); +#endif + + // Only integers for initialization of member constant. + static const _Value __min = __glibcxx_min(_Value); + static const _Value __max = __glibcxx_max(_Value); + + // NB: these two also available in std::numeric_limits as compile + // time constants, but is big and we avoid including it. + static const bool __is_signed = __glibcxx_signed(_Value); + static const int __digits = __glibcxx_digits(_Value); + }; + + template + const _Value __numeric_traits_integer<_Value>::__min; + + template + const _Value __numeric_traits_integer<_Value>::__max; + + template + const bool __numeric_traits_integer<_Value>::__is_signed; + + template + const int __numeric_traits_integer<_Value>::__digits; + +#if __cplusplus >= 201103L + template + using __int_traits = __numeric_traits_integer<_Tp>; +#endif + +#undef __glibcxx_signed +#undef __glibcxx_digits +#undef __glibcxx_min +#undef __glibcxx_max + +#define __glibcxx_floating(_Tp, _Fval, _Dval, _LDval) \ + (std::__are_same<_Tp, float>::__value ? _Fval \ + : std::__are_same<_Tp, double>::__value ? _Dval : _LDval) + +#define __glibcxx_max_digits10(_Tp) \ + (2 + __glibcxx_floating(_Tp, __FLT_MANT_DIG__, __DBL_MANT_DIG__, \ + __LDBL_MANT_DIG__) * 643L / 2136) + +#define __glibcxx_digits10(_Tp) \ + __glibcxx_floating(_Tp, __FLT_DIG__, __DBL_DIG__, __LDBL_DIG__) + +#define __glibcxx_max_exponent10(_Tp) \ + __glibcxx_floating(_Tp, __FLT_MAX_10_EXP__, __DBL_MAX_10_EXP__, \ + __LDBL_MAX_10_EXP__) + + template + struct __numeric_traits_floating + { + // Only floating point types. See N1822. + static const int __max_digits10 = __glibcxx_max_digits10(_Value); + + // See above comment... + static const bool __is_signed = true; + static const int __digits10 = __glibcxx_digits10(_Value); + static const int __max_exponent10 = __glibcxx_max_exponent10(_Value); + }; + + template + const int __numeric_traits_floating<_Value>::__max_digits10; + + template + const bool __numeric_traits_floating<_Value>::__is_signed; + + template + const int __numeric_traits_floating<_Value>::__digits10; + + template + const int __numeric_traits_floating<_Value>::__max_exponent10; + + template + struct __numeric_traits + : public __conditional_type::__value, + __numeric_traits_integer<_Value>, + __numeric_traits_floating<_Value> >::__type + { }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#undef __glibcxx_floating +#undef __glibcxx_max_digits10 +#undef __glibcxx_digits10 +#undef __glibcxx_max_exponent10 + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/pod_char_traits.h b/resources/sources/avr-libstdcpp/include/ext/pod_char_traits.h new file mode 100644 index 000000000..fc68a7290 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/pod_char_traits.h @@ -0,0 +1,198 @@ +// POD character, std::char_traits specialization -*- C++ -*- + +// Copyright (C) 2002-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/pod_char_traits.h + * This file is a GNU extension to the Standard C++ Library. + */ + +// Gabriel Dos Reis +// Benjamin Kosnik + +#ifndef _POD_CHAR_TRAITS_H +#define _POD_CHAR_TRAITS_H 1 + +#pragma GCC system_header + +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // POD character abstraction. + // NB: The char_type parameter is a subset of int_type, as to allow + // int_type to properly hold the full range of char_type values as + // well as EOF. + /// @brief A POD class that serves as a character abstraction class. + template + struct character + { + typedef _Value value_type; + typedef _Int int_type; + typedef _St state_type; + typedef character<_Value, _Int, _St> char_type; + + value_type value; + + template + static char_type + from(const V2& v) + { + char_type ret = { static_cast(v) }; + return ret; + } + + template + static V2 + to(const char_type& c) + { + V2 ret = { static_cast(c.value) }; + return ret; + } + + }; + + template + inline bool + operator==(const character<_Value, _Int, _St>& lhs, + const character<_Value, _Int, _St>& rhs) + { return lhs.value == rhs.value; } + + template + inline bool + operator<(const character<_Value, _Int, _St>& lhs, + const character<_Value, _Int, _St>& rhs) + { return lhs.value < rhs.value; } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// char_traits<__gnu_cxx::character> specialization. + template + struct char_traits<__gnu_cxx::character<_Value, _Int, _St> > + { + typedef __gnu_cxx::character<_Value, _Int, _St> char_type; + typedef typename char_type::int_type int_type; + typedef typename char_type::state_type state_type; + typedef fpos pos_type; + typedef streamoff off_type; + + static void + assign(char_type& __c1, const char_type& __c2) + { __c1 = __c2; } + + static bool + eq(const char_type& __c1, const char_type& __c2) + { return __c1 == __c2; } + + static bool + lt(const char_type& __c1, const char_type& __c2) + { return __c1 < __c2; } + + static int + compare(const char_type* __s1, const char_type* __s2, size_t __n) + { + for (size_t __i = 0; __i < __n; ++__i) + if (!eq(__s1[__i], __s2[__i])) + return lt(__s1[__i], __s2[__i]) ? -1 : 1; + return 0; + } + + static size_t + length(const char_type* __s) + { + const char_type* __p = __s; + while (__p->value) + ++__p; + return (__p - __s); + } + + static const char_type* + find(const char_type* __s, size_t __n, const char_type& __a) + { + for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p) + if (*__p == __a) + return __p; + return 0; + } + + static char_type* + move(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; + return static_cast + (__builtin_memmove(__s1, __s2, __n * sizeof(char_type))); + } + + static char_type* + copy(char_type* __s1, const char_type* __s2, size_t __n) + { + if (__n == 0) + return __s1; + std::copy(__s2, __s2 + __n, __s1); + return __s1; + } + + static char_type* + assign(char_type* __s, size_t __n, char_type __a) + { + std::fill_n(__s, __n, __a); + return __s; + } + + static char_type + to_char_type(const int_type& __i) + { return char_type::template from(__i); } + + static int_type + to_int_type(const char_type& __c) + { return char_type::template to(__c); } + + static bool + eq_int_type(const int_type& __c1, const int_type& __c2) + { return __c1 == __c2; } + + static int_type + eof() + { + int_type __r = { static_cast::__value, + int_type, int>::__type>(-1) }; + return __r; + } + + static int_type + not_eof(const int_type& __c) + { return eq_int_type(__c, eof()) ? int_type() : __c; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/rb_tree b/resources/sources/avr-libstdcpp/include/ext/rb_tree new file mode 100644 index 000000000..036e959b1 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/rb_tree @@ -0,0 +1,93 @@ +// rb_tree extension -*- C++ -*- + +// Copyright (C) 2002-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file ext/rb_tree + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _RB_TREE +#define _RB_TREE 1 + +#pragma GCC system_header + +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Class rb_tree is not part of the C++ standard. It is provided for + // compatibility with the HP STL. + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template > + struct rb_tree + : public std::_Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> + { + typedef std::_Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> _Base; + typedef typename _Base::allocator_type allocator_type; + + rb_tree(const _Compare& __comp = _Compare(), + const allocator_type& __a = allocator_type()) + : _Base(__comp, __a) { } + + ~rb_tree() { } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/slist b/resources/sources/avr-libstdcpp/include/ext/slist new file mode 100644 index 000000000..03c550127 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/slist @@ -0,0 +1,1082 @@ +// Singly-linked list implementation -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file ext/slist + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _SLIST +#define _SLIST 1 + +#include +#include +#include +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + struct _Slist_node_base + { + _Slist_node_base* _M_next; + }; + + inline _Slist_node_base* + __slist_make_link(_Slist_node_base* __prev_node, + _Slist_node_base* __new_node) + { + __new_node->_M_next = __prev_node->_M_next; + __prev_node->_M_next = __new_node; + return __new_node; + } + + inline _Slist_node_base* + __slist_previous(_Slist_node_base* __head, + const _Slist_node_base* __node) + { + while (__head && __head->_M_next != __node) + __head = __head->_M_next; + return __head; + } + + inline const _Slist_node_base* + __slist_previous(const _Slist_node_base* __head, + const _Slist_node_base* __node) + { + while (__head && __head->_M_next != __node) + __head = __head->_M_next; + return __head; + } + + inline void + __slist_splice_after(_Slist_node_base* __pos, + _Slist_node_base* __before_first, + _Slist_node_base* __before_last) + { + if (__pos != __before_first && __pos != __before_last) + { + _Slist_node_base* __first = __before_first->_M_next; + _Slist_node_base* __after = __pos->_M_next; + __before_first->_M_next = __before_last->_M_next; + __pos->_M_next = __first; + __before_last->_M_next = __after; + } + } + + inline void + __slist_splice_after(_Slist_node_base* __pos, _Slist_node_base* __head) + { + _Slist_node_base* __before_last = __slist_previous(__head, 0); + if (__before_last != __head) + { + _Slist_node_base* __after = __pos->_M_next; + __pos->_M_next = __head->_M_next; + __head->_M_next = 0; + __before_last->_M_next = __after; + } + } + + inline _Slist_node_base* + __slist_reverse(_Slist_node_base* __node) + { + _Slist_node_base* __result = __node; + __node = __node->_M_next; + __result->_M_next = 0; + while(__node) + { + _Slist_node_base* __next = __node->_M_next; + __node->_M_next = __result; + __result = __node; + __node = __next; + } + return __result; + } + + inline std::size_t + __slist_size(_Slist_node_base* __node) + { + std::size_t __result = 0; + for (; __node != 0; __node = __node->_M_next) + ++__result; + return __result; + } + + template + struct _Slist_node : public _Slist_node_base + { + _Tp _M_data; + }; + + struct _Slist_iterator_base + { + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + typedef std::forward_iterator_tag iterator_category; + + _Slist_node_base* _M_node; + + _Slist_iterator_base(_Slist_node_base* __x) + : _M_node(__x) {} + + void + _M_incr() + { _M_node = _M_node->_M_next; } + + bool + operator==(const _Slist_iterator_base& __x) const + { return _M_node == __x._M_node; } + + bool + operator!=(const _Slist_iterator_base& __x) const + { return _M_node != __x._M_node; } + }; + + template + struct _Slist_iterator : public _Slist_iterator_base + { + typedef _Slist_iterator<_Tp, _Tp&, _Tp*> iterator; + typedef _Slist_iterator<_Tp, const _Tp&, const _Tp*> const_iterator; + typedef _Slist_iterator<_Tp, _Ref, _Ptr> _Self; + + typedef _Tp value_type; + typedef _Ptr pointer; + typedef _Ref reference; + typedef _Slist_node<_Tp> _Node; + + explicit + _Slist_iterator(_Node* __x) + : _Slist_iterator_base(__x) {} + + _Slist_iterator() + : _Slist_iterator_base(0) {} + + _Slist_iterator(const iterator& __x) + : _Slist_iterator_base(__x._M_node) {} + + reference + operator*() const + { return ((_Node*) _M_node)->_M_data; } + + pointer + operator->() const + { return &(operator*()); } + + _Self& + operator++() + { + _M_incr(); + return *this; + } + + _Self + operator++(int) + { + _Self __tmp = *this; + _M_incr(); + return __tmp; + } + }; + + template + struct _Slist_base + : public __alloc_traits<_Alloc>::template rebind<_Slist_node<_Tp> >::other + { + typedef typename __alloc_traits<_Alloc>::template + rebind<_Slist_node<_Tp> >::other _Node_alloc; + typedef _Alloc allocator_type; + + allocator_type + get_allocator() const + { return *static_cast(this); } + + _Slist_base(const allocator_type& __a) + : _Node_alloc(__a) + { this->_M_head._M_next = 0; } + + ~_Slist_base() + { _M_erase_after(&this->_M_head, 0); } + + protected: + _Slist_node_base _M_head; + + _Slist_node<_Tp>* + _M_get_node() + { return _Node_alloc::allocate(1); } + + void + _M_put_node(_Slist_node<_Tp>* __p) + { _Node_alloc::deallocate(__p, 1); } + + protected: + _Slist_node_base* _M_erase_after(_Slist_node_base* __pos) + { + _Slist_node<_Tp>* __next = (_Slist_node<_Tp>*) (__pos->_M_next); + _Slist_node_base* __next_next = __next->_M_next; + __pos->_M_next = __next_next; + allocator_type __a = get_allocator(); + __alloc_traits::destroy(__a, &__next->_M_data); + _M_put_node(__next); + return __next_next; + } + _Slist_node_base* _M_erase_after(_Slist_node_base*, _Slist_node_base*); + }; + + template + _Slist_node_base* + _Slist_base<_Tp,_Alloc>::_M_erase_after(_Slist_node_base* __before_first, + _Slist_node_base* __last_node) + { + _Slist_node<_Tp>* __cur = (_Slist_node<_Tp>*) (__before_first->_M_next); + while (__cur != __last_node) + { + _Slist_node<_Tp>* __tmp = __cur; + __cur = (_Slist_node<_Tp>*) __cur->_M_next; + allocator_type __a = get_allocator(); + __alloc_traits::destroy(__a, &__tmp->_M_data); + _M_put_node(__tmp); + } + __before_first->_M_next = __last_node; + return __last_node; + } + + /** + * This is an SGI extension. + * @ingroup SGIextensions + * @doctodo + */ + template > + class slist : private _Slist_base<_Tp,_Alloc> + { + // concept requirements + __glibcxx_class_requires(_Tp, _SGIAssignableConcept) + + private: + typedef _Slist_base<_Tp,_Alloc> _Base; + + public: + typedef _Tp value_type; + typedef value_type* pointer; + typedef const value_type* const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef std::size_t size_type; + typedef std::ptrdiff_t difference_type; + + typedef _Slist_iterator<_Tp, _Tp&, _Tp*> iterator; + typedef _Slist_iterator<_Tp, const _Tp&, const _Tp*> const_iterator; + + typedef typename _Base::allocator_type allocator_type; + + allocator_type + get_allocator() const + { return _Base::get_allocator(); } + + private: + typedef _Slist_node<_Tp> _Node; + typedef _Slist_node_base _Node_base; + typedef _Slist_iterator_base _Iterator_base; + + _Node* + _M_create_node(const value_type& __x) + { + _Node* __node = this->_M_get_node(); + __try + { + allocator_type __a = get_allocator(); + __alloc_traits::construct(__a, &__node->_M_data, + __x); + __node->_M_next = 0; + } + __catch(...) + { + this->_M_put_node(__node); + __throw_exception_again; + } + return __node; + } + + _Node* + _M_create_node() + { + _Node* __node = this->_M_get_node(); + __try + { + allocator_type __a = get_allocator(); + __alloc_traits::construct(__a, &__node->_M_data, + value_type()); + __node->_M_next = 0; + } + __catch(...) + { + this->_M_put_node(__node); + __throw_exception_again; + } + return __node; + } + + public: + explicit + slist(const allocator_type& __a = allocator_type()) + : _Base(__a) {} + + slist(size_type __n, const value_type& __x, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { _M_insert_after_fill(&this->_M_head, __n, __x); } + + explicit + slist(size_type __n) + : _Base(allocator_type()) + { _M_insert_after_fill(&this->_M_head, __n, value_type()); } + + // We don't need any dispatching tricks here, because + // _M_insert_after_range already does them. + template + slist(_InputIterator __first, _InputIterator __last, + const allocator_type& __a = allocator_type()) + : _Base(__a) + { _M_insert_after_range(&this->_M_head, __first, __last); } + + slist(const slist& __x) + : _Base(__x.get_allocator()) + { _M_insert_after_range(&this->_M_head, __x.begin(), __x.end()); } + + slist& + operator= (const slist& __x); + + ~slist() {} + + public: + // assign(), a generalized assignment member function. Two + // versions: one that takes a count, and one that takes a range. + // The range version is a member template, so we dispatch on whether + // or not the type is an integer. + + void + assign(size_type __n, const _Tp& __val) + { _M_fill_assign(__n, __val); } + + void + _M_fill_assign(size_type __n, const _Tp& __val); + + template + void + assign(_InputIterator __first, _InputIterator __last) + { + typedef typename std::__is_integer<_InputIterator>::__type _Integral; + _M_assign_dispatch(__first, __last, _Integral()); + } + + template + void + _M_assign_dispatch(_Integer __n, _Integer __val, std::__true_type) + { _M_fill_assign((size_type) __n, (_Tp) __val); } + + template + void + _M_assign_dispatch(_InputIterator __first, _InputIterator __last, + std::__false_type); + + public: + + iterator + begin() + { return iterator((_Node*)this->_M_head._M_next); } + + const_iterator + begin() const + { return const_iterator((_Node*)this->_M_head._M_next);} + + iterator + end() + { return iterator(0); } + + const_iterator + end() const + { return const_iterator(0); } + + // Experimental new feature: before_begin() returns a + // non-dereferenceable iterator that, when incremented, yields + // begin(). This iterator may be used as the argument to + // insert_after, erase_after, etc. Note that even for an empty + // slist, before_begin() is not the same iterator as end(). It + // is always necessary to increment before_begin() at least once to + // obtain end(). + iterator + before_begin() + { return iterator((_Node*) &this->_M_head); } + + const_iterator + before_begin() const + { return const_iterator((_Node*) &this->_M_head); } + + size_type + size() const + { return __slist_size(this->_M_head._M_next); } + + size_type + max_size() const + { return size_type(-1); } + + _GLIBCXX_NODISCARD bool + empty() const + { return this->_M_head._M_next == 0; } + + void + swap(slist& __x) + { std::swap(this->_M_head._M_next, __x._M_head._M_next); } + + public: + + reference + front() + { return ((_Node*) this->_M_head._M_next)->_M_data; } + + const_reference + front() const + { return ((_Node*) this->_M_head._M_next)->_M_data; } + + void + push_front(const value_type& __x) + { __slist_make_link(&this->_M_head, _M_create_node(__x)); } + + void + push_front() + { __slist_make_link(&this->_M_head, _M_create_node()); } + + void + pop_front() + { + _Node* __node = (_Node*) this->_M_head._M_next; + this->_M_head._M_next = __node->_M_next; + allocator_type __a = get_allocator(); + __alloc_traits::destroy(__a, &__node->_M_data); + this->_M_put_node(__node); + } + + iterator + previous(const_iterator __pos) + { return iterator((_Node*) __slist_previous(&this->_M_head, + __pos._M_node)); } + + const_iterator + previous(const_iterator __pos) const + { return const_iterator((_Node*) __slist_previous(&this->_M_head, + __pos._M_node)); } + + private: + _Node* + _M_insert_after(_Node_base* __pos, const value_type& __x) + { return (_Node*) (__slist_make_link(__pos, _M_create_node(__x))); } + + _Node* + _M_insert_after(_Node_base* __pos) + { return (_Node*) (__slist_make_link(__pos, _M_create_node())); } + + void + _M_insert_after_fill(_Node_base* __pos, + size_type __n, const value_type& __x) + { + for (size_type __i = 0; __i < __n; ++__i) + __pos = __slist_make_link(__pos, _M_create_node(__x)); + } + + // Check whether it's an integral type. If so, it's not an iterator. + template + void + _M_insert_after_range(_Node_base* __pos, + _InIterator __first, _InIterator __last) + { + typedef typename std::__is_integer<_InIterator>::__type _Integral; + _M_insert_after_range(__pos, __first, __last, _Integral()); + } + + template + void + _M_insert_after_range(_Node_base* __pos, _Integer __n, _Integer __x, + std::__true_type) + { _M_insert_after_fill(__pos, __n, __x); } + + template + void + _M_insert_after_range(_Node_base* __pos, + _InIterator __first, _InIterator __last, + std::__false_type) + { + while (__first != __last) + { + __pos = __slist_make_link(__pos, _M_create_node(*__first)); + ++__first; + } + } + + public: + iterator + insert_after(iterator __pos, const value_type& __x) + { return iterator(_M_insert_after(__pos._M_node, __x)); } + + iterator + insert_after(iterator __pos) + { return insert_after(__pos, value_type()); } + + void + insert_after(iterator __pos, size_type __n, const value_type& __x) + { _M_insert_after_fill(__pos._M_node, __n, __x); } + + // We don't need any dispatching tricks here, because + // _M_insert_after_range already does them. + template + void + insert_after(iterator __pos, _InIterator __first, _InIterator __last) + { _M_insert_after_range(__pos._M_node, __first, __last); } + + iterator + insert(iterator __pos, const value_type& __x) + { return iterator(_M_insert_after(__slist_previous(&this->_M_head, + __pos._M_node), + __x)); } + + iterator + insert(iterator __pos) + { return iterator(_M_insert_after(__slist_previous(&this->_M_head, + __pos._M_node), + value_type())); } + + void + insert(iterator __pos, size_type __n, const value_type& __x) + { _M_insert_after_fill(__slist_previous(&this->_M_head, __pos._M_node), + __n, __x); } + + // We don't need any dispatching tricks here, because + // _M_insert_after_range already does them. + template + void + insert(iterator __pos, _InIterator __first, _InIterator __last) + { _M_insert_after_range(__slist_previous(&this->_M_head, __pos._M_node), + __first, __last); } + + public: + iterator + erase_after(iterator __pos) + { return iterator((_Node*) this->_M_erase_after(__pos._M_node)); } + + iterator + erase_after(iterator __before_first, iterator __last) + { + return iterator((_Node*) this->_M_erase_after(__before_first._M_node, + __last._M_node)); + } + + iterator + erase(iterator __pos) + { + return iterator((_Node*) this->_M_erase_after + (__slist_previous(&this->_M_head, __pos._M_node))); + } + + iterator + erase(iterator __first, iterator __last) + { + return iterator((_Node*) this->_M_erase_after + (__slist_previous(&this->_M_head, __first._M_node), + __last._M_node)); + } + + void + resize(size_type new_size, const _Tp& __x); + + void + resize(size_type new_size) + { resize(new_size, _Tp()); } + + void + clear() + { this->_M_erase_after(&this->_M_head, 0); } + + public: + // Moves the range [__before_first + 1, __before_last + 1) to *this, + // inserting it immediately after __pos. This is constant time. + void + splice_after(iterator __pos, + iterator __before_first, iterator __before_last) + { + if (__before_first != __before_last) + __slist_splice_after(__pos._M_node, __before_first._M_node, + __before_last._M_node); + } + + // Moves the element that follows __prev to *this, inserting it + // immediately after __pos. This is constant time. + void + splice_after(iterator __pos, iterator __prev) + { __slist_splice_after(__pos._M_node, + __prev._M_node, __prev._M_node->_M_next); } + + // Removes all of the elements from the list __x to *this, inserting + // them immediately after __pos. __x must not be *this. Complexity: + // linear in __x.size(). + void + splice_after(iterator __pos, slist& __x) + { __slist_splice_after(__pos._M_node, &__x._M_head); } + + // Linear in distance(begin(), __pos), and linear in __x.size(). + void + splice(iterator __pos, slist& __x) + { + if (__x._M_head._M_next) + __slist_splice_after(__slist_previous(&this->_M_head, __pos._M_node), + &__x._M_head, + __slist_previous(&__x._M_head, 0)); } + + // Linear in distance(begin(), __pos), and in distance(__x.begin(), __i). + void + splice(iterator __pos, slist& __x, iterator __i) + { __slist_splice_after(__slist_previous(&this->_M_head, __pos._M_node), + __slist_previous(&__x._M_head, __i._M_node), + __i._M_node); } + + // Linear in distance(begin(), __pos), in distance(__x.begin(), __first), + // and in distance(__first, __last). + void + splice(iterator __pos, slist& __x, iterator __first, iterator __last) + { + if (__first != __last) + __slist_splice_after(__slist_previous(&this->_M_head, __pos._M_node), + __slist_previous(&__x._M_head, __first._M_node), + __slist_previous(__first._M_node, + __last._M_node)); + } + + public: + void + reverse() + { + if (this->_M_head._M_next) + this->_M_head._M_next = __slist_reverse(this->_M_head._M_next); + } + + void + remove(const _Tp& __val); + + void + unique(); + + void + merge(slist& __x); + + void + sort(); + + template + void + remove_if(_Predicate __pred); + + template + void + unique(_BinaryPredicate __pred); + + template + void + merge(slist&, _StrictWeakOrdering); + + template + void + sort(_StrictWeakOrdering __comp); + }; + + template + slist<_Tp, _Alloc>& + slist<_Tp, _Alloc>::operator=(const slist<_Tp, _Alloc>& __x) + { + if (&__x != this) + { + _Node_base* __p1 = &this->_M_head; + _Node* __n1 = (_Node*) this->_M_head._M_next; + const _Node* __n2 = (const _Node*) __x._M_head._M_next; + while (__n1 && __n2) + { + __n1->_M_data = __n2->_M_data; + __p1 = __n1; + __n1 = (_Node*) __n1->_M_next; + __n2 = (const _Node*) __n2->_M_next; + } + if (__n2 == 0) + this->_M_erase_after(__p1, 0); + else + _M_insert_after_range(__p1, const_iterator((_Node*)__n2), + const_iterator(0)); + } + return *this; + } + + template + void + slist<_Tp, _Alloc>::_M_fill_assign(size_type __n, const _Tp& __val) + { + _Node_base* __prev = &this->_M_head; + _Node* __node = (_Node*) this->_M_head._M_next; + for (; __node != 0 && __n > 0; --__n) + { + __node->_M_data = __val; + __prev = __node; + __node = (_Node*) __node->_M_next; + } + if (__n > 0) + _M_insert_after_fill(__prev, __n, __val); + else + this->_M_erase_after(__prev, 0); + } + + template + template + void + slist<_Tp, _Alloc>::_M_assign_dispatch(_InputIterator __first, + _InputIterator __last, + std::__false_type) + { + _Node_base* __prev = &this->_M_head; + _Node* __node = (_Node*) this->_M_head._M_next; + while (__node != 0 && __first != __last) + { + __node->_M_data = *__first; + __prev = __node; + __node = (_Node*) __node->_M_next; + ++__first; + } + if (__first != __last) + _M_insert_after_range(__prev, __first, __last); + else + this->_M_erase_after(__prev, 0); + } + + template + inline bool + operator==(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2) + { + typedef typename slist<_Tp,_Alloc>::const_iterator const_iterator; + const_iterator __end1 = _SL1.end(); + const_iterator __end2 = _SL2.end(); + + const_iterator __i1 = _SL1.begin(); + const_iterator __i2 = _SL2.begin(); + while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2) + { + ++__i1; + ++__i2; + } + return __i1 == __end1 && __i2 == __end2; + } + + + template + inline bool + operator<(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2) + { return std::lexicographical_compare(_SL1.begin(), _SL1.end(), + _SL2.begin(), _SL2.end()); } + + template + inline bool + operator!=(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2) + { return !(_SL1 == _SL2); } + + template + inline bool + operator>(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2) + { return _SL2 < _SL1; } + + template + inline bool + operator<=(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2) + { return !(_SL2 < _SL1); } + + template + inline bool + operator>=(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2) + { return !(_SL1 < _SL2); } + + template + inline void + swap(slist<_Tp, _Alloc>& __x, slist<_Tp, _Alloc>& __y) + { __x.swap(__y); } + + template + void + slist<_Tp, _Alloc>::resize(size_type __len, const _Tp& __x) + { + _Node_base* __cur = &this->_M_head; + while (__cur->_M_next != 0 && __len > 0) + { + --__len; + __cur = __cur->_M_next; + } + if (__cur->_M_next) + this->_M_erase_after(__cur, 0); + else + _M_insert_after_fill(__cur, __len, __x); + } + + template + void + slist<_Tp, _Alloc>::remove(const _Tp& __val) + { + _Node_base* __cur = &this->_M_head; + while (__cur && __cur->_M_next) + { + if (((_Node*) __cur->_M_next)->_M_data == __val) + this->_M_erase_after(__cur); + else + __cur = __cur->_M_next; + } + } + + template + void + slist<_Tp, _Alloc>::unique() + { + _Node_base* __cur = this->_M_head._M_next; + if (__cur) + { + while (__cur->_M_next) + { + if (((_Node*)__cur)->_M_data + == ((_Node*)(__cur->_M_next))->_M_data) + this->_M_erase_after(__cur); + else + __cur = __cur->_M_next; + } + } + } + + template + void + slist<_Tp, _Alloc>::merge(slist<_Tp, _Alloc>& __x) + { + _Node_base* __n1 = &this->_M_head; + while (__n1->_M_next && __x._M_head._M_next) + { + if (((_Node*) __x._M_head._M_next)->_M_data + < ((_Node*) __n1->_M_next)->_M_data) + __slist_splice_after(__n1, &__x._M_head, __x._M_head._M_next); + __n1 = __n1->_M_next; + } + if (__x._M_head._M_next) + { + __n1->_M_next = __x._M_head._M_next; + __x._M_head._M_next = 0; + } + } + + template + void + slist<_Tp, _Alloc>::sort() + { + if (this->_M_head._M_next && this->_M_head._M_next->_M_next) + { + slist __carry; + slist __counter[64]; + int __fill = 0; + while (!empty()) + { + __slist_splice_after(&__carry._M_head, + &this->_M_head, this->_M_head._M_next); + int __i = 0; + while (__i < __fill && !__counter[__i].empty()) + { + __counter[__i].merge(__carry); + __carry.swap(__counter[__i]); + ++__i; + } + __carry.swap(__counter[__i]); + if (__i == __fill) + ++__fill; + } + + for (int __i = 1; __i < __fill; ++__i) + __counter[__i].merge(__counter[__i-1]); + this->swap(__counter[__fill-1]); + } + } + + template + template + void slist<_Tp, _Alloc>::remove_if(_Predicate __pred) + { + _Node_base* __cur = &this->_M_head; + while (__cur->_M_next) + { + if (__pred(((_Node*) __cur->_M_next)->_M_data)) + this->_M_erase_after(__cur); + else + __cur = __cur->_M_next; + } + } + + template + template + void + slist<_Tp, _Alloc>::unique(_BinaryPredicate __pred) + { + _Node* __cur = (_Node*) this->_M_head._M_next; + if (__cur) + { + while (__cur->_M_next) + { + if (__pred(((_Node*)__cur)->_M_data, + ((_Node*)(__cur->_M_next))->_M_data)) + this->_M_erase_after(__cur); + else + __cur = (_Node*) __cur->_M_next; + } + } + } + + template + template + void + slist<_Tp, _Alloc>::merge(slist<_Tp, _Alloc>& __x, + _StrictWeakOrdering __comp) + { + _Node_base* __n1 = &this->_M_head; + while (__n1->_M_next && __x._M_head._M_next) + { + if (__comp(((_Node*) __x._M_head._M_next)->_M_data, + ((_Node*) __n1->_M_next)->_M_data)) + __slist_splice_after(__n1, &__x._M_head, __x._M_head._M_next); + __n1 = __n1->_M_next; + } + if (__x._M_head._M_next) + { + __n1->_M_next = __x._M_head._M_next; + __x._M_head._M_next = 0; + } + } + + template + template + void + slist<_Tp, _Alloc>::sort(_StrictWeakOrdering __comp) + { + if (this->_M_head._M_next && this->_M_head._M_next->_M_next) + { + slist __carry; + slist __counter[64]; + int __fill = 0; + while (!empty()) + { + __slist_splice_after(&__carry._M_head, + &this->_M_head, this->_M_head._M_next); + int __i = 0; + while (__i < __fill && !__counter[__i].empty()) + { + __counter[__i].merge(__carry, __comp); + __carry.swap(__counter[__i]); + ++__i; + } + __carry.swap(__counter[__i]); + if (__i == __fill) + ++__fill; + } + + for (int __i = 1; __i < __fill; ++__i) + __counter[__i].merge(__counter[__i-1], __comp); + this->swap(__counter[__fill-1]); + } + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Specialization of insert_iterator so that insertions will be constant + // time rather than linear time. + template + class insert_iterator<__gnu_cxx::slist<_Tp, _Alloc> > + { + protected: + typedef __gnu_cxx::slist<_Tp, _Alloc> _Container; + _Container* container; + typename _Container::iterator iter; + + public: + typedef _Container container_type; + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; + typedef void pointer; + typedef void reference; + + insert_iterator(_Container& __x, typename _Container::iterator __i) + : container(&__x) + { + if (__i == __x.begin()) + iter = __x.before_begin(); + else + iter = __x.previous(__i); + } + + insert_iterator<_Container>& + operator=(const typename _Container::value_type& __value) + { + iter = container->insert_after(iter, __value); + return *this; + } + + insert_iterator<_Container>& + operator*() + { return *this; } + + insert_iterator<_Container>& + operator++() + { return *this; } + + insert_iterator<_Container>& + operator++(int) + { return *this; } + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/type_traits.h b/resources/sources/avr-libstdcpp/include/ext/type_traits.h new file mode 100644 index 000000000..cf773cf2d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/type_traits.h @@ -0,0 +1,221 @@ +// -*- C++ -*- + +// Copyright (C) 2005-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License as published by the Free Software +// Foundation; either version 3, or (at your option) any later +// version. + +// This library is distributed in the hope that it will be useful, but +// WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file ext/type_traits.h + * This file is a GNU extension to the Standard C++ Library. + */ + +#ifndef _EXT_TYPE_TRAITS +#define _EXT_TYPE_TRAITS 1 + +#pragma GCC system_header + +#include +#include + +extern "C++" { + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + // Define a nested type if some predicate holds. + template + struct __enable_if + { }; + + template + struct __enable_if + { typedef _Tp __type; }; + + + // Conditional expression for types. If true, first, if false, second. + template + struct __conditional_type + { typedef _Iftrue __type; }; + + template + struct __conditional_type + { typedef _Iffalse __type; }; + + + // Given an integral builtin type, return the corresponding unsigned type. + template + struct __add_unsigned + { + private: + typedef __enable_if::__value, _Tp> __if_type; + + public: + typedef typename __if_type::__type __type; + }; + + template<> + struct __add_unsigned + { typedef unsigned char __type; }; + + template<> + struct __add_unsigned + { typedef unsigned char __type; }; + + template<> + struct __add_unsigned + { typedef unsigned short __type; }; + + template<> + struct __add_unsigned + { typedef unsigned int __type; }; + + template<> + struct __add_unsigned + { typedef unsigned long __type; }; + + template<> + struct __add_unsigned + { typedef unsigned long long __type; }; + + // Declare but don't define. + template<> + struct __add_unsigned; + + template<> + struct __add_unsigned; + + + // Given an integral builtin type, return the corresponding signed type. + template + struct __remove_unsigned + { + private: + typedef __enable_if::__value, _Tp> __if_type; + + public: + typedef typename __if_type::__type __type; + }; + + template<> + struct __remove_unsigned + { typedef signed char __type; }; + + template<> + struct __remove_unsigned + { typedef signed char __type; }; + + template<> + struct __remove_unsigned + { typedef short __type; }; + + template<> + struct __remove_unsigned + { typedef int __type; }; + + template<> + struct __remove_unsigned + { typedef long __type; }; + + template<> + struct __remove_unsigned + { typedef long long __type; }; + + // Declare but don't define. + template<> + struct __remove_unsigned; + + template<> + struct __remove_unsigned; + + + // For use in string and vstring. + template + inline bool + __is_null_pointer(_Type* __ptr) + { return __ptr == 0; } + + template + inline bool + __is_null_pointer(_Type) + { return false; } + +#if __cplusplus >= 201103L + inline bool + __is_null_pointer(std::nullptr_t) + { return true; } +#endif + + // For complex and cmath + template::__value> + struct __promote + { typedef double __type; }; + + // No nested __type member for non-integer non-floating point types, + // allows this type to be used for SFINAE to constrain overloads in + // and to only the intended types. + template + struct __promote<_Tp, false> + { }; + + template<> + struct __promote + { typedef long double __type; }; + + template<> + struct __promote + { typedef double __type; }; + + template<> + struct __promote + { typedef float __type; }; + + template::__type, + typename _Up2 = typename __promote<_Up>::__type> + struct __promote_2 + { + typedef __typeof__(_Tp2() + _Up2()) __type; + }; + + template::__type, + typename _Up2 = typename __promote<_Up>::__type, + typename _Vp2 = typename __promote<_Vp>::__type> + struct __promote_3 + { + typedef __typeof__(_Tp2() + _Up2() + _Vp2()) __type; + }; + + template::__type, + typename _Up2 = typename __promote<_Up>::__type, + typename _Vp2 = typename __promote<_Vp>::__type, + typename _Wp2 = typename __promote<_Wp>::__type> + struct __promote_4 + { + typedef __typeof__(_Tp2() + _Up2() + _Vp2() + _Wp2()) __type; + }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +} // extern "C++" + +#endif diff --git a/resources/sources/avr-libstdcpp/include/ext/typelist.h b/resources/sources/avr-libstdcpp/include/ext/typelist.h new file mode 100644 index 000000000..1835c141f --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ext/typelist.h @@ -0,0 +1,538 @@ +// -*- C++ -*- + +// Copyright (C) 2005-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. + +// Permission to use, copy, modify, sell, and distribute this software +// is hereby granted without fee, provided that the above copyright +// notice appears in all copies, and that both that copyright notice and +// this permission notice appear in supporting documentation. None of +// the above authors, nor IBM Haifa Research Laboratories, make any +// representation about the suitability of this software for any +// purpose. It is provided "as is" without express or implied warranty. + +/** + * @file ext/typelist.h + * This file is a GNU extension to the Standard C++ Library. + * + * Contains typelist_chain definitions. + * Typelists are an idea by Andrei Alexandrescu. + */ + +#ifndef _TYPELIST_H +#define _TYPELIST_H 1 + +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +/** @namespace __gnu_cxx::typelist + * @brief GNU typelist extensions for public compile-time use. +*/ +namespace typelist +{ + struct null_type { }; + + template + struct node + { + typedef Root root; + }; + + // Forward declarations of functors. + template + struct chain + { + typedef Hd head; + typedef Typelist tail; + }; + + // Apply all typelist types to unary functor. + template + void + apply(Fn&, Typelist); + + /// Apply all typelist types to generator functor. + template + void + apply_generator(Gn&, Typelist); + + // Apply all typelist types and values to generator functor. + template + void + apply_generator(Gn&, TypelistT, TypelistV); + + template + struct append; + + template + struct append_typelist; + + template + struct contains; + + template class Pred> + struct filter; + + template + struct at_index; + + template class Transform> + struct transform; + + template + struct flatten; + + template + struct from_first; + + template + struct create1; + + template + struct create2; + + template + struct create3; + + template + struct create4; + + template + struct create5; + + template + struct create6; + +namespace detail +{ + template + struct apply_; + + template + struct apply_ > + { + void + operator()(Fn& f) + { + f.operator()(Hd()); + apply_ next; + next(f); + } + }; + + template + struct apply_ + { + void + operator()(Fn&) { } + }; + + template + struct apply_generator1_; + + template + struct apply_generator1_ > + { + void + operator()(Gn& g) + { + g.template operator()(); + apply_generator1_ next; + next(g); + } + }; + + template + struct apply_generator1_ + { + void + operator()(Gn&) { } + }; + + template + struct apply_generator2_; + + template + struct apply_generator2_, chain > + { + void + operator()(Gn& g) + { + g.template operator()(); + apply_generator2_ next; + next(g); + } + }; + + template + struct apply_generator2_ + { + void + operator()(Gn&) { } + }; + + template + struct append_; + + template + struct append_, Typelist_Chain> + { + private: + typedef append_ append_type; + + public: + typedef chain type; + }; + + template + struct append_ + { + typedef Typelist_Chain type; + }; + + template + struct append_, null_type> + { + typedef chain type; + }; + + template<> + struct append_ + { + typedef null_type type; + }; + + template + struct append_typelist_; + + template + struct append_typelist_ > + { + typedef chain type; + }; + + template + struct append_typelist_ > + { + private: + typedef typename append_typelist_::type rest_type; + + public: + typedef typename append >::type::root type; + }; + + template + struct contains_; + + template + struct contains_ + { + enum + { + value = false + }; + }; + + template + struct contains_, T> + { + enum + { + value = contains_::value + }; + }; + + template + struct contains_, T> + { + enum + { + value = true + }; + }; + + template class Pred> + struct chain_filter_; + + template class Pred> + struct chain_filter_ + { + typedef null_type type; + }; + + template class Pred> + struct chain_filter_, Pred> + { + private: + enum + { + include_hd = Pred::value + }; + + typedef typename chain_filter_::type rest_type; + typedef chain chain_type; + + public: + typedef typename __conditional_type::__type type; + }; + + template + struct chain_at_index_; + + template + struct chain_at_index_, 0> + { + typedef Hd type; + }; + + template + struct chain_at_index_, i> + { + typedef typename chain_at_index_::type type; + }; + + template class Transform> + struct chain_transform_; + + template class Transform> + struct chain_transform_ + { + typedef null_type type; + }; + + template class Transform> + struct chain_transform_, Transform> + { + private: + typedef typename chain_transform_::type rest_type; + typedef typename Transform::type transform_type; + + public: + typedef chain type; + }; + + template + struct chain_flatten_; + + template + struct chain_flatten_ > + { + typedef typename Hd_Tl::root type; + }; + + template + struct chain_flatten_ > + { + private: + typedef typename chain_flatten_::type rest_type; + typedef append > append_type; + public: + typedef typename append_type::type::root type; + }; +} // namespace detail + +#define _GLIBCXX_TYPELIST_CHAIN1(X0) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN2(X0, X1) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN3(X0, X1, X2) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN4(X0, X1, X2, X3) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN5(X0, X1, X2, X3, X4) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN6(X0, X1, X2, X3, X4, X5) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN7(X0, X1, X2, X3, X4, X5, X6) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN8(X0, X1, X2, X3, X4, X5, X6, X7) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN9(X0, X1, X2, X3, X4, X5, X6, X7, X8) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN10(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN11(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN12(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN13(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN14(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN15(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN16(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN17(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN18(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16, X17) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN19(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16, X17, X18) __gnu_cxx::typelist::chain +#define _GLIBCXX_TYPELIST_CHAIN20(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X12, X13, X14, X15, X16, X17, X18, X19) __gnu_cxx::typelist::chain + + template + void + apply(Fn& fn, Typelist) + { + detail::apply_ a; + a(fn); + } + + template + void + apply_generator(Fn& fn, Typelist) + { + detail::apply_generator1_ a; + a(fn); + } + + template + void + apply_generator(Fn& fn, TypelistT, TypelistV) + { + typedef typename TypelistT::root rootT; + typedef typename TypelistV::root rootV; + detail::apply_generator2_ a; + a(fn); + } + + template + struct append + { + private: + typedef typename Typelist0::root root0_type; + typedef typename Typelist1::root root1_type; + typedef detail::append_ append_type; + + public: + typedef node type; + }; + + template + struct append_typelist + { + private: + typedef typename Typelist_Typelist::root root_type; + typedef detail::append_typelist_ append_type; + + public: + typedef node type; + }; + + template + struct contains + { + private: + typedef typename Typelist::root root_type; + + public: + enum + { + value = detail::contains_::value + }; + }; + + template class Pred> + struct filter + { + private: + typedef typename Typelist::root root_type; + typedef detail::chain_filter_ filter_type; + + public: + typedef node type; + }; + + template + struct at_index + { + private: + typedef typename Typelist::root root_type; + typedef detail::chain_at_index_ index_type; + + public: + typedef typename index_type::type type; + }; + + template class Transform> + struct transform + { + private: + typedef typename Typelist::root root_type; + typedef detail::chain_transform_ transform_type; + + public: + typedef node type; + }; + + template + struct flatten + { + private: + typedef typename Typelist_Typelist::root root_type; + typedef typename detail::chain_flatten_::type flatten_type; + + public: + typedef node type; + }; + + template + struct from_first + { + private: + typedef typename at_index::type first_type; + + public: + typedef node > type; + }; + + template + struct create1 + { + typedef node<_GLIBCXX_TYPELIST_CHAIN1(T1)> type; + }; + + template + struct create2 + { + typedef node<_GLIBCXX_TYPELIST_CHAIN2(T1,T2)> type; + }; + + template + struct create3 + { + typedef node<_GLIBCXX_TYPELIST_CHAIN3(T1,T2,T3)> type; + }; + + template + struct create4 + { + typedef node<_GLIBCXX_TYPELIST_CHAIN4(T1,T2,T3,T4)> type; + }; + + template + struct create5 + { + typedef node<_GLIBCXX_TYPELIST_CHAIN5(T1,T2,T3,T4,T5)> type; + }; + + template + struct create6 + { + typedef node<_GLIBCXX_TYPELIST_CHAIN6(T1,T2,T3,T4,T5,T6)> type; + }; +} // namespace typelist +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + + +#endif diff --git a/resources/sources/avr-libstdcpp/include/forward_list b/resources/sources/avr-libstdcpp/include/forward_list new file mode 100644 index 000000000..439ef6b38 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/forward_list @@ -0,0 +1,87 @@ +// -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/forward_list + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_FORWARD_LIST +#define _GLIBCXX_FORWARD_LIST 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template + using forward_list = std::forward_list<_Tp, polymorphic_allocator<_Tp>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_erase_if 202002L + + template + inline typename forward_list<_Tp, _Alloc>::size_type + erase_if(forward_list<_Tp, _Alloc>& __cont, _Predicate __pred) + { return __cont.remove_if(__pred); } + + template + inline typename forward_list<_Tp, _Alloc>::size_type + erase(forward_list<_Tp, _Alloc>& __cont, const _Up& __value) + { + using __elem_type = typename forward_list<_Tp, _Alloc>::value_type; + return std::erase_if(__cont, [&](__elem_type& __elem) { + return __elem == __value; + }); + } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif // C++11 + +#endif // _GLIBCXX_FORWARD_LIST diff --git a/resources/sources/avr-libstdcpp/include/functional b/resources/sources/avr-libstdcpp/include/functional new file mode 100644 index 000000000..dc21c10b7 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/functional @@ -0,0 +1,1280 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file include/functional + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_FUNCTIONAL +#define _GLIBCXX_FUNCTIONAL 1 + +#pragma GCC system_header + +#include +#include + +#if __cplusplus >= 201103L + +#include +#include +#include +#include +#include +#include // std::reference_wrapper and _Mem_fn_traits +#include // std::function +#if __cplusplus > 201402L +# include +# include +# include +# include +# include +#endif +#if __cplusplus > 201703L +# include +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus >= 201703L +# define __cpp_lib_invoke 201411L +# if __cplusplus > 201703L +# define __cpp_lib_constexpr_functional 201907L +# endif + + /// Invoke a callable object. + template + inline _GLIBCXX20_CONSTEXPR invoke_result_t<_Callable, _Args...> + invoke(_Callable&& __fn, _Args&&... __args) + noexcept(is_nothrow_invocable_v<_Callable, _Args...>) + { + return std::__invoke(std::forward<_Callable>(__fn), + std::forward<_Args>(__args)...); + } +#endif // C++17 + + template::value> + class _Mem_fn_base + : public _Mem_fn_traits<_MemFunPtr>::__maybe_type + { + using _Traits = _Mem_fn_traits<_MemFunPtr>; + + using _Arity = typename _Traits::__arity; + using _Varargs = typename _Traits::__vararg; + + template + friend struct _Bind_check_arity; + + _MemFunPtr _M_pmf; + + public: + + using result_type = typename _Traits::__result_type; + + explicit constexpr + _Mem_fn_base(_MemFunPtr __pmf) noexcept : _M_pmf(__pmf) { } + + template + _GLIBCXX20_CONSTEXPR + auto + operator()(_Args&&... __args) const + noexcept(noexcept( + std::__invoke(_M_pmf, std::forward<_Args>(__args)...))) + -> decltype(std::__invoke(_M_pmf, std::forward<_Args>(__args)...)) + { return std::__invoke(_M_pmf, std::forward<_Args>(__args)...); } + }; + + // Partial specialization for member object pointers. + template + class _Mem_fn_base<_MemObjPtr, false> + { + using _Arity = integral_constant; + using _Varargs = false_type; + + template + friend struct _Bind_check_arity; + + _MemObjPtr _M_pm; + + public: + explicit constexpr + _Mem_fn_base(_MemObjPtr __pm) noexcept : _M_pm(__pm) { } + + template + _GLIBCXX20_CONSTEXPR + auto + operator()(_Tp&& __obj) const + noexcept(noexcept(std::__invoke(_M_pm, std::forward<_Tp>(__obj)))) + -> decltype(std::__invoke(_M_pm, std::forward<_Tp>(__obj))) + { return std::__invoke(_M_pm, std::forward<_Tp>(__obj)); } + }; + + template + struct _Mem_fn; // undefined + + template + struct _Mem_fn<_Res _Class::*> + : _Mem_fn_base<_Res _Class::*> + { + using _Mem_fn_base<_Res _Class::*>::_Mem_fn_base; + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2048. Unnecessary mem_fn overloads + /** + * @brief Returns a function object that forwards to the member + * pointer @a pm. + * @ingroup functors + */ + template + _GLIBCXX20_CONSTEXPR + inline _Mem_fn<_Tp _Class::*> + mem_fn(_Tp _Class::* __pm) noexcept + { + return _Mem_fn<_Tp _Class::*>(__pm); + } + + /** + * @brief Determines if the given type _Tp is a function object that + * should be treated as a subexpression when evaluating calls to + * function objects returned by bind(). + * + * C++11 [func.bind.isbind]. + * @ingroup binders + */ + template + struct is_bind_expression + : public false_type { }; + + /** + * @brief Determines if the given type _Tp is a placeholder in a + * bind() expression and, if so, which placeholder it is. + * + * C++11 [func.bind.isplace]. + * @ingroup binders + */ + template + struct is_placeholder + : public integral_constant + { }; + +#if __cplusplus > 201402L + template inline constexpr bool is_bind_expression_v + = is_bind_expression<_Tp>::value; + template inline constexpr int is_placeholder_v + = is_placeholder<_Tp>::value; +#endif // C++17 + + /** @brief The type of placeholder objects defined by libstdc++. + * @ingroup binders + */ + template struct _Placeholder { }; + + /** @namespace std::placeholders + * @brief ISO C++ 2011 namespace for std::bind placeholders. + * @ingroup binders + */ + namespace placeholders + { + /* Define a large number of placeholders. There is no way to + * simplify this with variadic templates, because we're introducing + * unique names for each. + */ + extern const _Placeholder<1> _1; + extern const _Placeholder<2> _2; + extern const _Placeholder<3> _3; + extern const _Placeholder<4> _4; + extern const _Placeholder<5> _5; + extern const _Placeholder<6> _6; + extern const _Placeholder<7> _7; + extern const _Placeholder<8> _8; + extern const _Placeholder<9> _9; + extern const _Placeholder<10> _10; + extern const _Placeholder<11> _11; + extern const _Placeholder<12> _12; + extern const _Placeholder<13> _13; + extern const _Placeholder<14> _14; + extern const _Placeholder<15> _15; + extern const _Placeholder<16> _16; + extern const _Placeholder<17> _17; + extern const _Placeholder<18> _18; + extern const _Placeholder<19> _19; + extern const _Placeholder<20> _20; + extern const _Placeholder<21> _21; + extern const _Placeholder<22> _22; + extern const _Placeholder<23> _23; + extern const _Placeholder<24> _24; + extern const _Placeholder<25> _25; + extern const _Placeholder<26> _26; + extern const _Placeholder<27> _27; + extern const _Placeholder<28> _28; + extern const _Placeholder<29> _29; + } + + /** + * Partial specialization of is_placeholder that provides the placeholder + * number for the placeholder objects defined by libstdc++. + * @ingroup binders + */ + template + struct is_placeholder<_Placeholder<_Num> > + : public integral_constant + { }; + + template + struct is_placeholder > + : public integral_constant + { }; + + + // Like tuple_element_t but SFINAE-friendly. + template + using _Safe_tuple_element_t + = typename enable_if<(__i < tuple_size<_Tuple>::value), + tuple_element<__i, _Tuple>>::type::type; + + /** + * Maps an argument to bind() into an actual argument to the bound + * function object [func.bind.bind]/10. Only the first parameter should + * be specified: the rest are used to determine among the various + * implementations. Note that, although this class is a function + * object, it isn't entirely normal because it takes only two + * parameters regardless of the number of parameters passed to the + * bind expression. The first parameter is the bound argument and + * the second parameter is a tuple containing references to the + * rest of the arguments. + */ + template::value, + bool _IsPlaceholder = (is_placeholder<_Arg>::value > 0)> + class _Mu; + + /** + * If the argument is reference_wrapper<_Tp>, returns the + * underlying reference. + * C++11 [func.bind.bind] p10 bullet 1. + */ + template + class _Mu, false, false> + { + public: + /* Note: This won't actually work for const volatile + * reference_wrappers, because reference_wrapper::get() is const + * but not volatile-qualified. This might be a defect in the TR. + */ + template + _GLIBCXX20_CONSTEXPR + _Tp& + operator()(_CVRef& __arg, _Tuple&) const volatile + { return __arg.get(); } + }; + + /** + * If the argument is a bind expression, we invoke the underlying + * function object with the same cv-qualifiers as we are given and + * pass along all of our arguments (unwrapped). + * C++11 [func.bind.bind] p10 bullet 2. + */ + template + class _Mu<_Arg, true, false> + { + public: + template + _GLIBCXX20_CONSTEXPR + auto + operator()(_CVArg& __arg, + tuple<_Args...>& __tuple) const volatile + -> decltype(__arg(declval<_Args>()...)) + { + // Construct an index tuple and forward to __call + typedef typename _Build_index_tuple::__type + _Indexes; + return this->__call(__arg, __tuple, _Indexes()); + } + + private: + // Invokes the underlying function object __arg by unpacking all + // of the arguments in the tuple. + template + _GLIBCXX20_CONSTEXPR + auto + __call(_CVArg& __arg, tuple<_Args...>& __tuple, + const _Index_tuple<_Indexes...>&) const volatile + -> decltype(__arg(declval<_Args>()...)) + { + return __arg(std::get<_Indexes>(std::move(__tuple))...); + } + }; + + /** + * If the argument is a placeholder for the Nth argument, returns + * a reference to the Nth argument to the bind function object. + * C++11 [func.bind.bind] p10 bullet 3. + */ + template + class _Mu<_Arg, false, true> + { + public: + template + _GLIBCXX20_CONSTEXPR + _Safe_tuple_element_t<(is_placeholder<_Arg>::value - 1), _Tuple>&& + operator()(const volatile _Arg&, _Tuple& __tuple) const volatile + { + return + ::std::get<(is_placeholder<_Arg>::value - 1)>(std::move(__tuple)); + } + }; + + /** + * If the argument is just a value, returns a reference to that + * value. The cv-qualifiers on the reference are determined by the caller. + * C++11 [func.bind.bind] p10 bullet 4. + */ + template + class _Mu<_Arg, false, false> + { + public: + template + _GLIBCXX20_CONSTEXPR + _CVArg&& + operator()(_CVArg&& __arg, _Tuple&) const volatile + { return std::forward<_CVArg>(__arg); } + }; + + // std::get for volatile-qualified tuples + template + inline auto + __volget(volatile tuple<_Tp...>& __tuple) + -> __tuple_element_t<_Ind, tuple<_Tp...>> volatile& + { return std::get<_Ind>(const_cast&>(__tuple)); } + + // std::get for const-volatile-qualified tuples + template + inline auto + __volget(const volatile tuple<_Tp...>& __tuple) + -> __tuple_element_t<_Ind, tuple<_Tp...>> const volatile& + { return std::get<_Ind>(const_cast&>(__tuple)); } + + /// Type of the function object returned from bind(). + template + struct _Bind; + + template + class _Bind<_Functor(_Bound_args...)> + : public _Weak_result_type<_Functor> + { + typedef typename _Build_index_tuple::__type + _Bound_indexes; + + _Functor _M_f; + tuple<_Bound_args...> _M_bound_args; + + // Call unqualified + template + _GLIBCXX20_CONSTEXPR + _Result + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) + { + return std::__invoke(_M_f, + _Mu<_Bound_args>()(std::get<_Indexes>(_M_bound_args), __args)... + ); + } + + // Call as const + template + _GLIBCXX20_CONSTEXPR + _Result + __call_c(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const + { + return std::__invoke(_M_f, + _Mu<_Bound_args>()(std::get<_Indexes>(_M_bound_args), __args)... + ); + } + + // Call as volatile + template + _Result + __call_v(tuple<_Args...>&& __args, + _Index_tuple<_Indexes...>) volatile + { + return std::__invoke(_M_f, + _Mu<_Bound_args>()(__volget<_Indexes>(_M_bound_args), __args)... + ); + } + + // Call as const volatile + template + _Result + __call_c_v(tuple<_Args...>&& __args, + _Index_tuple<_Indexes...>) const volatile + { + return std::__invoke(_M_f, + _Mu<_Bound_args>()(__volget<_Indexes>(_M_bound_args), __args)... + ); + } + + template + using _Mu_type = decltype( + _Mu::type>()( + std::declval<_BoundArg&>(), std::declval<_CallArgs&>()) ); + + template + using _Res_type_impl + = typename result_of< _Fn&(_Mu_type<_BArgs, _CallArgs>&&...) >::type; + + template + using _Res_type = _Res_type_impl<_Functor, _CallArgs, _Bound_args...>; + + template + using __dependent = typename + enable_if::value+1), _Functor>::type; + + template class __cv_quals> + using _Res_type_cv = _Res_type_impl< + typename __cv_quals<__dependent<_CallArgs>>::type, + _CallArgs, + typename __cv_quals<_Bound_args>::type...>; + + public: + template + explicit _GLIBCXX20_CONSTEXPR + _Bind(const _Functor& __f, _Args&&... __args) + : _M_f(__f), _M_bound_args(std::forward<_Args>(__args)...) + { } + + template + explicit _GLIBCXX20_CONSTEXPR + _Bind(_Functor&& __f, _Args&&... __args) + : _M_f(std::move(__f)), _M_bound_args(std::forward<_Args>(__args)...) + { } + + _Bind(const _Bind&) = default; + _Bind(_Bind&&) = default; + + // Call unqualified + template>> + _GLIBCXX20_CONSTEXPR + _Result + operator()(_Args&&... __args) + { + return this->__call<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + + // Call as const + template, add_const>> + _GLIBCXX20_CONSTEXPR + _Result + operator()(_Args&&... __args) const + { + return this->__call_c<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + +#if __cplusplus > 201402L +# define _GLIBCXX_DEPR_BIND \ + [[deprecated("std::bind does not support volatile in C++17")]] +#else +# define _GLIBCXX_DEPR_BIND +#endif + // Call as volatile + template, add_volatile>> + _GLIBCXX_DEPR_BIND + _Result + operator()(_Args&&... __args) volatile + { + return this->__call_v<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + + // Call as const volatile + template, add_cv>> + _GLIBCXX_DEPR_BIND + _Result + operator()(_Args&&... __args) const volatile + { + return this->__call_c_v<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + }; + + /// Type of the function object returned from bind(). + template + struct _Bind_result; + + template + class _Bind_result<_Result, _Functor(_Bound_args...)> + { + typedef typename _Build_index_tuple::__type + _Bound_indexes; + + _Functor _M_f; + tuple<_Bound_args...> _M_bound_args; + + // Call unqualified + template + _GLIBCXX20_CONSTEXPR + _Res + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) + { + return std::__invoke_r<_Res>(_M_f, _Mu<_Bound_args>() + (std::get<_Indexes>(_M_bound_args), __args)...); + } + + // Call as const + template + _GLIBCXX20_CONSTEXPR + _Res + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) const + { + return std::__invoke_r<_Res>(_M_f, _Mu<_Bound_args>() + (std::get<_Indexes>(_M_bound_args), __args)...); + } + + // Call as volatile + template + _GLIBCXX20_CONSTEXPR + _Res + __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>) volatile + { + return std::__invoke_r<_Res>(_M_f, _Mu<_Bound_args>() + (__volget<_Indexes>(_M_bound_args), __args)...); + } + + // Call as const volatile + template + _GLIBCXX20_CONSTEXPR + _Res + __call(tuple<_Args...>&& __args, + _Index_tuple<_Indexes...>) const volatile + { + return std::__invoke_r<_Res>(_M_f, _Mu<_Bound_args>() + (__volget<_Indexes>(_M_bound_args), __args)...); + } + + public: + typedef _Result result_type; + + template + explicit _GLIBCXX20_CONSTEXPR + _Bind_result(const _Functor& __f, _Args&&... __args) + : _M_f(__f), _M_bound_args(std::forward<_Args>(__args)...) + { } + + template + explicit _GLIBCXX20_CONSTEXPR + _Bind_result(_Functor&& __f, _Args&&... __args) + : _M_f(std::move(__f)), _M_bound_args(std::forward<_Args>(__args)...) + { } + + _Bind_result(const _Bind_result&) = default; + _Bind_result(_Bind_result&&) = default; + + // Call unqualified + template + _GLIBCXX20_CONSTEXPR + result_type + operator()(_Args&&... __args) + { + return this->__call<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + + // Call as const + template + _GLIBCXX20_CONSTEXPR + result_type + operator()(_Args&&... __args) const + { + return this->__call<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + + // Call as volatile + template + _GLIBCXX_DEPR_BIND + result_type + operator()(_Args&&... __args) volatile + { + return this->__call<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + + // Call as const volatile + template + _GLIBCXX_DEPR_BIND + result_type + operator()(_Args&&... __args) const volatile + { + return this->__call<_Result>( + std::forward_as_tuple(std::forward<_Args>(__args)...), + _Bound_indexes()); + } + }; +#undef _GLIBCXX_DEPR_BIND + + /** + * @brief Class template _Bind is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression<_Bind<_Signature> > + : public true_type { }; + + /** + * @brief Class template _Bind is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression > + : public true_type { }; + + /** + * @brief Class template _Bind is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression > + : public true_type { }; + + /** + * @brief Class template _Bind is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression> + : public true_type { }; + + /** + * @brief Class template _Bind_result is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression<_Bind_result<_Result, _Signature>> + : public true_type { }; + + /** + * @brief Class template _Bind_result is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression> + : public true_type { }; + + /** + * @brief Class template _Bind_result is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression> + : public true_type { }; + + /** + * @brief Class template _Bind_result is always a bind expression. + * @ingroup binders + */ + template + struct is_bind_expression> + : public true_type { }; + + template + struct _Bind_check_arity { }; + + template + struct _Bind_check_arity<_Ret (*)(_Args...), _BoundArgs...> + { + static_assert(sizeof...(_BoundArgs) == sizeof...(_Args), + "Wrong number of arguments for function"); + }; + + template + struct _Bind_check_arity<_Ret (*)(_Args......), _BoundArgs...> + { + static_assert(sizeof...(_BoundArgs) >= sizeof...(_Args), + "Wrong number of arguments for function"); + }; + + template + struct _Bind_check_arity<_Tp _Class::*, _BoundArgs...> + { + using _Arity = typename _Mem_fn<_Tp _Class::*>::_Arity; + using _Varargs = typename _Mem_fn<_Tp _Class::*>::_Varargs; + static_assert(_Varargs::value + ? sizeof...(_BoundArgs) >= _Arity::value + 1 + : sizeof...(_BoundArgs) == _Arity::value + 1, + "Wrong number of arguments for pointer-to-member"); + }; + + // Trait type used to remove std::bind() from overload set via SFINAE + // when first argument has integer type, so that std::bind() will + // not be a better match than ::bind() from the BSD Sockets API. + template::type> + using __is_socketlike = __or_, is_enum<_Tp2>>; + + template + struct _Bind_helper + : _Bind_check_arity::type, _BoundArgs...> + { + typedef typename decay<_Func>::type __func_type; + typedef _Bind<__func_type(typename decay<_BoundArgs>::type...)> type; + }; + + // Partial specialization for is_socketlike == true, does not define + // nested type so std::bind() will not participate in overload resolution + // when the first argument might be a socket file descriptor. + template + struct _Bind_helper + { }; + + /** + * @brief Function template for std::bind. + * @ingroup binders + */ + template + inline _GLIBCXX20_CONSTEXPR typename + _Bind_helper<__is_socketlike<_Func>::value, _Func, _BoundArgs...>::type + bind(_Func&& __f, _BoundArgs&&... __args) + { + typedef _Bind_helper __helper_type; + return typename __helper_type::type(std::forward<_Func>(__f), + std::forward<_BoundArgs>(__args)...); + } + + template + struct _Bindres_helper + : _Bind_check_arity::type, _BoundArgs...> + { + typedef typename decay<_Func>::type __functor_type; + typedef _Bind_result<_Result, + __functor_type(typename decay<_BoundArgs>::type...)> + type; + }; + + /** + * @brief Function template for std::bind. + * @ingroup binders + */ + template + inline _GLIBCXX20_CONSTEXPR + typename _Bindres_helper<_Result, _Func, _BoundArgs...>::type + bind(_Func&& __f, _BoundArgs&&... __args) + { + typedef _Bindres_helper<_Result, _Func, _BoundArgs...> __helper_type; + return typename __helper_type::type(std::forward<_Func>(__f), + std::forward<_BoundArgs>(__args)...); + } + +#if __cplusplus > 201703L +#define __cpp_lib_bind_front 201907L + + template + struct _Bind_front + { + static_assert(is_move_constructible_v<_Fd>); + static_assert((is_move_constructible_v<_BoundArgs> && ...)); + + // First parameter is to ensure this constructor is never used + // instead of the copy/move constructor. + template + explicit constexpr + _Bind_front(int, _Fn&& __fn, _Args&&... __args) + noexcept(__and_, + is_nothrow_constructible<_BoundArgs, _Args>...>::value) + : _M_fd(std::forward<_Fn>(__fn)), + _M_bound_args(std::forward<_Args>(__args)...) + { static_assert(sizeof...(_Args) == sizeof...(_BoundArgs)); } + + _Bind_front(const _Bind_front&) = default; + _Bind_front(_Bind_front&&) = default; + _Bind_front& operator=(const _Bind_front&) = default; + _Bind_front& operator=(_Bind_front&&) = default; + ~_Bind_front() = default; + + template + constexpr + invoke_result_t<_Fd&, _BoundArgs&..., _CallArgs...> + operator()(_CallArgs&&... __call_args) & + noexcept(is_nothrow_invocable_v<_Fd&, _BoundArgs&..., _CallArgs...>) + { + return _S_call(*this, _BoundIndices(), + std::forward<_CallArgs>(__call_args)...); + } + + template + constexpr + invoke_result_t + operator()(_CallArgs&&... __call_args) const & + noexcept(is_nothrow_invocable_v) + { + return _S_call(*this, _BoundIndices(), + std::forward<_CallArgs>(__call_args)...); + } + + template + constexpr + invoke_result_t<_Fd, _BoundArgs..., _CallArgs...> + operator()(_CallArgs&&... __call_args) && + noexcept(is_nothrow_invocable_v<_Fd, _BoundArgs..., _CallArgs...>) + { + return _S_call(std::move(*this), _BoundIndices(), + std::forward<_CallArgs>(__call_args)...); + } + + template + constexpr + invoke_result_t + operator()(_CallArgs&&... __call_args) const && + noexcept(is_nothrow_invocable_v) + { + return _S_call(std::move(*this), _BoundIndices(), + std::forward<_CallArgs>(__call_args)...); + } + + private: + using _BoundIndices = index_sequence_for<_BoundArgs...>; + + template + static constexpr + decltype(auto) + _S_call(_Tp&& __g, index_sequence<_Ind...>, _CallArgs&&... __call_args) + { + return std::invoke(std::forward<_Tp>(__g)._M_fd, + std::get<_Ind>(std::forward<_Tp>(__g)._M_bound_args)..., + std::forward<_CallArgs>(__call_args)...); + } + + _Fd _M_fd; + std::tuple<_BoundArgs...> _M_bound_args; + }; + + template + using _Bind_front_t + = _Bind_front, decay_t<_Args>...>; + + template + constexpr _Bind_front_t<_Fn, _Args...> + bind_front(_Fn&& __fn, _Args&&... __args) + noexcept(is_nothrow_constructible_v<_Bind_front_t<_Fn, _Args...>, + int, _Fn, _Args...>) + { + return _Bind_front_t<_Fn, _Args...>(0, std::forward<_Fn>(__fn), + std::forward<_Args>(__args)...); + } +#endif + +#if __cplusplus >= 201402L + /// Generalized negator. + template + class _Not_fn + { + template + using __inv_res_t = typename __invoke_result<_Fn2, _Args...>::type; + + template + static decltype(!std::declval<_Tp>()) + _S_not() noexcept(noexcept(!std::declval<_Tp>())); + + public: + template + constexpr + _Not_fn(_Fn2&& __fn, int) + : _M_fn(std::forward<_Fn2>(__fn)) { } + + _Not_fn(const _Not_fn& __fn) = default; + _Not_fn(_Not_fn&& __fn) = default; + ~_Not_fn() = default; + + // Macro to define operator() with given cv-qualifiers ref-qualifiers, + // forwarding _M_fn and the function arguments with the same qualifiers, + // and deducing the return type and exception-specification. +#define _GLIBCXX_NOT_FN_CALL_OP( _QUALS ) \ + template \ + _GLIBCXX20_CONSTEXPR \ + decltype(_S_not<__inv_res_t<_Fn _QUALS, _Args...>>()) \ + operator()(_Args&&... __args) _QUALS \ + noexcept(__is_nothrow_invocable<_Fn _QUALS, _Args...>::value \ + && noexcept(_S_not<__inv_res_t<_Fn _QUALS, _Args...>>())) \ + { \ + return !std::__invoke(std::forward< _Fn _QUALS >(_M_fn), \ + std::forward<_Args>(__args)...); \ + } + _GLIBCXX_NOT_FN_CALL_OP( & ) + _GLIBCXX_NOT_FN_CALL_OP( const & ) + _GLIBCXX_NOT_FN_CALL_OP( && ) + _GLIBCXX_NOT_FN_CALL_OP( const && ) +#undef _GLIBCXX_NOT_FN_CALL_OP + + private: + _Fn _M_fn; + }; + + template + struct __is_byte_like : false_type { }; + + template + struct __is_byte_like<_Tp, equal_to<_Tp>> + : __bool_constant::value> { }; + + template + struct __is_byte_like<_Tp, equal_to> + : __bool_constant::value> { }; + +#if __cplusplus >= 201703L + // Declare std::byte (full definition is in ). + enum class byte : unsigned char; + + template<> + struct __is_byte_like> + : true_type { }; + + template<> + struct __is_byte_like> + : true_type { }; + +#define __cpp_lib_not_fn 201603 + /// [func.not_fn] Function template not_fn + template + _GLIBCXX20_CONSTEXPR + inline auto + not_fn(_Fn&& __fn) + noexcept(std::is_nothrow_constructible, _Fn&&>::value) + { + return _Not_fn>{std::forward<_Fn>(__fn), 0}; + } + + // Searchers +#define __cpp_lib_boyer_moore_searcher 201603 + + template> + class default_searcher + { + public: + _GLIBCXX20_CONSTEXPR + default_searcher(_ForwardIterator1 __pat_first, + _ForwardIterator1 __pat_last, + _BinaryPredicate __pred = _BinaryPredicate()) + : _M_m(__pat_first, __pat_last, std::move(__pred)) + { } + + template + _GLIBCXX20_CONSTEXPR + pair<_ForwardIterator2, _ForwardIterator2> + operator()(_ForwardIterator2 __first, _ForwardIterator2 __last) const + { + _ForwardIterator2 __first_ret = + std::search(__first, __last, std::get<0>(_M_m), std::get<1>(_M_m), + std::get<2>(_M_m)); + auto __ret = std::make_pair(__first_ret, __first_ret); + if (__ret.first != __last) + std::advance(__ret.second, std::distance(std::get<0>(_M_m), + std::get<1>(_M_m))); + return __ret; + } + + private: + tuple<_ForwardIterator1, _ForwardIterator1, _BinaryPredicate> _M_m; + }; + + template + struct __boyer_moore_map_base + { + template + __boyer_moore_map_base(_RAIter __pat, size_t __patlen, + _Hash&& __hf, _Pred&& __pred) + : _M_bad_char{ __patlen, std::move(__hf), std::move(__pred) } + { + if (__patlen > 0) + for (__diff_type __i = 0; __i < __patlen - 1; ++__i) + _M_bad_char[__pat[__i]] = __patlen - 1 - __i; + } + + using __diff_type = _Tp; + + __diff_type + _M_lookup(_Key __key, __diff_type __not_found) const + { + auto __iter = _M_bad_char.find(__key); + if (__iter == _M_bad_char.end()) + return __not_found; + return __iter->second; + } + + _Pred + _M_pred() const { return _M_bad_char.key_eq(); } + + _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _Pred> _M_bad_char; + }; + + template + struct __boyer_moore_array_base + { + template + __boyer_moore_array_base(_RAIter __pat, size_t __patlen, + _Unused&&, _Pred&& __pred) + : _M_bad_char{ _GLIBCXX_STD_C::array<_Tp, _Len>{}, std::move(__pred) } + { + std::get<0>(_M_bad_char).fill(__patlen); + if (__patlen > 0) + for (__diff_type __i = 0; __i < __patlen - 1; ++__i) + { + auto __ch = __pat[__i]; + using _UCh = make_unsigned_t; + auto __uch = static_cast<_UCh>(__ch); + std::get<0>(_M_bad_char)[__uch] = __patlen - 1 - __i; + } + } + + using __diff_type = _Tp; + + template + __diff_type + _M_lookup(_Key __key, __diff_type __not_found) const + { + auto __ukey = static_cast>(__key); + if (__ukey >= _Len) + return __not_found; + return std::get<0>(_M_bad_char)[__ukey]; + } + + const _Pred& + _M_pred() const { return std::get<1>(_M_bad_char); } + + tuple<_GLIBCXX_STD_C::array<_Tp, _Len>, _Pred> _M_bad_char; + }; + + // Use __boyer_moore_array_base when pattern consists of narrow characters + // (or std::byte) and uses std::equal_to as the predicate. + template::value_type, + typename _Diff = typename iterator_traits<_RAIter>::difference_type> + using __boyer_moore_base_t + = conditional_t<__is_byte_like<_Val, _Pred>::value, + __boyer_moore_array_base<_Diff, 256, _Pred>, + __boyer_moore_map_base<_Val, _Diff, _Hash, _Pred>>; + + template::value_type>, + typename _BinaryPredicate = equal_to<>> + class boyer_moore_searcher + : __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate> + { + using _Base = __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>; + using typename _Base::__diff_type; + + public: + boyer_moore_searcher(_RAIter __pat_first, _RAIter __pat_last, + _Hash __hf = _Hash(), + _BinaryPredicate __pred = _BinaryPredicate()); + + template + pair<_RandomAccessIterator2, _RandomAccessIterator2> + operator()(_RandomAccessIterator2 __first, + _RandomAccessIterator2 __last) const; + + private: + bool + _M_is_prefix(_RAIter __word, __diff_type __len, + __diff_type __pos) + { + const auto& __pred = this->_M_pred(); + __diff_type __suffixlen = __len - __pos; + for (__diff_type __i = 0; __i < __suffixlen; ++__i) + if (!__pred(__word[__i], __word[__pos + __i])) + return false; + return true; + } + + __diff_type + _M_suffix_length(_RAIter __word, __diff_type __len, + __diff_type __pos) + { + const auto& __pred = this->_M_pred(); + __diff_type __i = 0; + while (__pred(__word[__pos - __i], __word[__len - 1 - __i]) + && __i < __pos) + { + ++__i; + } + return __i; + } + + template + __diff_type + _M_bad_char_shift(_Tp __c) const + { return this->_M_lookup(__c, _M_pat_end - _M_pat); } + + _RAIter _M_pat; + _RAIter _M_pat_end; + _GLIBCXX_STD_C::vector<__diff_type> _M_good_suffix; + }; + + template::value_type>, + typename _BinaryPredicate = equal_to<>> + class boyer_moore_horspool_searcher + : __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate> + { + using _Base = __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>; + using typename _Base::__diff_type; + + public: + boyer_moore_horspool_searcher(_RAIter __pat, + _RAIter __pat_end, + _Hash __hf = _Hash(), + _BinaryPredicate __pred + = _BinaryPredicate()) + : _Base(__pat, __pat_end - __pat, std::move(__hf), std::move(__pred)), + _M_pat(__pat), _M_pat_end(__pat_end) + { } + + template + pair<_RandomAccessIterator2, _RandomAccessIterator2> + operator()(_RandomAccessIterator2 __first, + _RandomAccessIterator2 __last) const + { + const auto& __pred = this->_M_pred(); + auto __patlen = _M_pat_end - _M_pat; + if (__patlen == 0) + return std::make_pair(__first, __first); + auto __len = __last - __first; + while (__len >= __patlen) + { + for (auto __scan = __patlen - 1; + __pred(__first[__scan], _M_pat[__scan]); --__scan) + if (__scan == 0) + return std::make_pair(__first, __first + __patlen); + auto __shift = _M_bad_char_shift(__first[__patlen - 1]); + __len -= __shift; + __first += __shift; + } + return std::make_pair(__last, __last); + } + + private: + template + __diff_type + _M_bad_char_shift(_Tp __c) const + { return this->_M_lookup(__c, _M_pat_end - _M_pat); } + + _RAIter _M_pat; + _RAIter _M_pat_end; + }; + + template + boyer_moore_searcher<_RAIter, _Hash, _BinaryPredicate>:: + boyer_moore_searcher(_RAIter __pat, _RAIter __pat_end, + _Hash __hf, _BinaryPredicate __pred) + : _Base(__pat, __pat_end - __pat, std::move(__hf), std::move(__pred)), + _M_pat(__pat), _M_pat_end(__pat_end), _M_good_suffix(__pat_end - __pat) + { + auto __patlen = __pat_end - __pat; + if (__patlen == 0) + return; + __diff_type __last_prefix = __patlen - 1; + for (__diff_type __p = __patlen - 1; __p >= 0; --__p) + { + if (_M_is_prefix(__pat, __patlen, __p + 1)) + __last_prefix = __p + 1; + _M_good_suffix[__p] = __last_prefix + (__patlen - 1 - __p); + } + for (__diff_type __p = 0; __p < __patlen - 1; ++__p) + { + auto __slen = _M_suffix_length(__pat, __patlen, __p); + auto __pos = __patlen - 1 - __slen; + if (!__pred(__pat[__p - __slen], __pat[__pos])) + _M_good_suffix[__pos] = __patlen - 1 - __p + __slen; + } + } + + template + template + pair<_RandomAccessIterator2, _RandomAccessIterator2> + boyer_moore_searcher<_RAIter, _Hash, _BinaryPredicate>:: + operator()(_RandomAccessIterator2 __first, + _RandomAccessIterator2 __last) const + { + auto __patlen = _M_pat_end - _M_pat; + if (__patlen == 0) + return std::make_pair(__first, __first); + const auto& __pred = this->_M_pred(); + __diff_type __i = __patlen - 1; + auto __stringlen = __last - __first; + while (__i < __stringlen) + { + __diff_type __j = __patlen - 1; + while (__j >= 0 && __pred(__first[__i], _M_pat[__j])) + { + --__i; + --__j; + } + if (__j < 0) + { + const auto __match = __first + __i + 1; + return std::make_pair(__match, __match + __patlen); + } + __i += std::max(_M_bad_char_shift(__first[__i]), + _M_good_suffix[__j]); + } + return std::make_pair(__last, __last); + } + +#endif // C++17 +#endif // C++14 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#endif // _GLIBCXX_FUNCTIONAL diff --git a/resources/sources/avr-libstdcpp/include/initializer_list b/resources/sources/avr-libstdcpp/include/initializer_list new file mode 100644 index 000000000..9f4859514 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/initializer_list @@ -0,0 +1,109 @@ +// std::initializer_list support -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of GCC. +// +// GCC is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 3, or (at your option) +// any later version. +// +// GCC is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file initializer_list + * This is a Standard C++ Library header. + */ + +#ifndef _INITIALIZER_LIST +#define _INITIALIZER_LIST + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else // C++0x + +#pragma GCC visibility push(default) + +#include + +namespace std +{ + /// initializer_list + template + class initializer_list + { + public: + typedef _E value_type; + typedef const _E& reference; + typedef const _E& const_reference; + typedef size_t size_type; + typedef const _E* iterator; + typedef const _E* const_iterator; + + private: + iterator _M_array; + size_type _M_len; + + // The compiler can call a private constructor. + constexpr initializer_list(const_iterator __a, size_type __l) + : _M_array(__a), _M_len(__l) { } + + public: + constexpr initializer_list() noexcept + : _M_array(0), _M_len(0) { } + + // Number of elements. + constexpr size_type + size() const noexcept { return _M_len; } + + // First element. + constexpr const_iterator + begin() const noexcept { return _M_array; } + + // One past the last element. + constexpr const_iterator + end() const noexcept { return begin() + size(); } + }; + + /** + * @brief Return an iterator pointing to the first element of + * the initializer_list. + * @param __ils Initializer list. + * @relates initializer_list + */ + template + constexpr const _Tp* + begin(initializer_list<_Tp> __ils) noexcept + { return __ils.begin(); } + + /** + * @brief Return an iterator pointing to one past the last element + * of the initializer_list. + * @param __ils Initializer list. + * @relates initializer_list + */ + template + constexpr const _Tp* + end(initializer_list<_Tp> __ils) noexcept + { return __ils.end(); } +} + +#pragma GCC visibility pop + +#endif // C++11 + +#endif // _INITIALIZER_LIST diff --git a/resources/sources/avr-libstdcpp/include/iterator b/resources/sources/avr-libstdcpp/include/iterator new file mode 100644 index 000000000..fbc47e01e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/iterator @@ -0,0 +1,70 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/iterator + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_ITERATOR +#define _GLIBCXX_ITERATOR 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include + +#if __cplusplus >= 201402L && ! defined _GLIBCXX_DEBUG // PR libstdc++/70303 +# define __cpp_lib_null_iterators 201304L +#endif + +#endif /* _GLIBCXX_ITERATOR */ diff --git a/resources/sources/avr-libstdcpp/include/limits b/resources/sources/avr-libstdcpp/include/limits new file mode 100644 index 000000000..898406f91 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/limits @@ -0,0 +1,1893 @@ +// The template and inlines for the numeric_limits classes. -*- C++ -*- + +// Copyright (C) 1999-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/limits + * This is a Standard C++ Library header. + */ + +// Note: this is not a conforming implementation. +// Written by Gabriel Dos Reis + +// +// ISO 14882:1998 +// 18.2.1 +// + +#ifndef _GLIBCXX_NUMERIC_LIMITS +#define _GLIBCXX_NUMERIC_LIMITS 1 + +#pragma GCC system_header + +#include + +// +// The numeric_limits<> traits document implementation-defined aspects +// of fundamental arithmetic data types (integers and floating points). +// From Standard C++ point of view, there are 14 such types: +// * integers +// bool (1) +// char, signed char, unsigned char, wchar_t (4) +// short, unsigned short (2) +// int, unsigned (2) +// long, unsigned long (2) +// +// * floating points +// float (1) +// double (1) +// long double (1) +// +// GNU C++ understands (where supported by the host C-library) +// * integer +// long long, unsigned long long (2) +// +// which brings us to 16 fundamental arithmetic data types in GNU C++. +// +// +// Since a numeric_limits<> is a bit tricky to get right, we rely on +// an interface composed of macros which should be defined in config/os +// or config/cpu when they differ from the generic (read arbitrary) +// definitions given here. +// + +// These values can be overridden in the target configuration file. +// The default values are appropriate for many 32-bit targets. + +// GCC only intrinsically supports modulo integral types. The only remaining +// integral exceptional values is division by zero. Only targets that do not +// signal division by zero in some "hard to ignore" way should use false. +#ifndef __glibcxx_integral_traps +# define __glibcxx_integral_traps true +#endif + +// float +// + +// Default values. Should be overridden in configuration files if necessary. + +#ifndef __glibcxx_float_has_denorm_loss +# define __glibcxx_float_has_denorm_loss false +#endif +#ifndef __glibcxx_float_traps +# define __glibcxx_float_traps false +#endif +#ifndef __glibcxx_float_tinyness_before +# define __glibcxx_float_tinyness_before false +#endif + +// double + +// Default values. Should be overridden in configuration files if necessary. + +#ifndef __glibcxx_double_has_denorm_loss +# define __glibcxx_double_has_denorm_loss false +#endif +#ifndef __glibcxx_double_traps +# define __glibcxx_double_traps false +#endif +#ifndef __glibcxx_double_tinyness_before +# define __glibcxx_double_tinyness_before false +#endif + +// long double + +// Default values. Should be overridden in configuration files if necessary. + +#ifndef __glibcxx_long_double_has_denorm_loss +# define __glibcxx_long_double_has_denorm_loss false +#endif +#ifndef __glibcxx_long_double_traps +# define __glibcxx_long_double_traps false +#endif +#ifndef __glibcxx_long_double_tinyness_before +# define __glibcxx_long_double_tinyness_before false +#endif + +// You should not need to define any macros below this point. + +#define __glibcxx_signed_b(T,B) ((T)(-1) < 0) + +#define __glibcxx_min_b(T,B) \ + (__glibcxx_signed_b (T,B) ? -__glibcxx_max_b (T,B) - 1 : (T)0) + +#define __glibcxx_max_b(T,B) \ + (__glibcxx_signed_b (T,B) ? \ + (((((T)1 << (__glibcxx_digits_b (T,B) - 1)) - 1) << 1) + 1) : ~(T)0) + +#define __glibcxx_digits_b(T,B) \ + (B - __glibcxx_signed_b (T,B)) + +// The fraction 643/2136 approximates log10(2) to 7 significant digits. +#define __glibcxx_digits10_b(T,B) \ + (__glibcxx_digits_b (T,B) * 643L / 2136) + +#define __glibcxx_signed(T) \ + __glibcxx_signed_b (T, sizeof(T) * __CHAR_BIT__) +#define __glibcxx_min(T) \ + __glibcxx_min_b (T, sizeof(T) * __CHAR_BIT__) +#define __glibcxx_max(T) \ + __glibcxx_max_b (T, sizeof(T) * __CHAR_BIT__) +#define __glibcxx_digits(T) \ + __glibcxx_digits_b (T, sizeof(T) * __CHAR_BIT__) +#define __glibcxx_digits10(T) \ + __glibcxx_digits10_b (T, sizeof(T) * __CHAR_BIT__) + +#define __glibcxx_max_digits10(T) \ + (2 + (T) * 643L / 2136) + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @brief Describes the rounding style for floating-point types. + * + * This is used in the std::numeric_limits class. + */ + enum float_round_style + { + round_indeterminate = -1, /// Intermediate. + round_toward_zero = 0, /// To zero. + round_to_nearest = 1, /// To the nearest representable value. + round_toward_infinity = 2, /// To infinity. + round_toward_neg_infinity = 3 /// To negative infinity. + }; + + /** + * @brief Describes the denormalization for floating-point types. + * + * These values represent the presence or absence of a variable number + * of exponent bits. This type is used in the std::numeric_limits class. + */ + enum float_denorm_style + { + /// Indeterminate at compile time whether denormalized values are allowed. + denorm_indeterminate = -1, + /// The type does not allow denormalized values. + denorm_absent = 0, + /// The type allows denormalized values. + denorm_present = 1 + }; + + /** + * @brief Part of std::numeric_limits. + * + * The @c static @c const members are usable as integral constant + * expressions. + * + * @note This is a separate class for purposes of efficiency; you + * should only access these members as part of an instantiation + * of the std::numeric_limits class. + */ + struct __numeric_limits_base + { + /** This will be true for all fundamental types (which have + specializations), and false for everything else. */ + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = false; + + /** The number of @c radix digits that be represented without change: for + integer types, the number of non-sign bits in the mantissa; for + floating types, the number of @c radix digits in the mantissa. */ + static _GLIBCXX_USE_CONSTEXPR int digits = 0; + + /** The number of base 10 digits that can be represented without change. */ + static _GLIBCXX_USE_CONSTEXPR int digits10 = 0; + +#if __cplusplus >= 201103L + /** The number of base 10 digits required to ensure that values which + differ are always differentiated. */ + static constexpr int max_digits10 = 0; +#endif + + /** True if the type is signed. */ + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + + /** True if the type is integer. */ + static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; + + /** True if the type uses an exact representation. All integer types are + exact, but not all exact types are integer. For example, rational and + fixed-exponent representations are exact but not integer. */ + static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; + + /** For integer types, specifies the base of the representation. For + floating types, specifies the base of the exponent representation. */ + static _GLIBCXX_USE_CONSTEXPR int radix = 0; + + /** The minimum negative integer such that @c radix raised to the power of + (one less than that integer) is a normalized floating point number. */ + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + + /** The minimum negative integer such that 10 raised to that power is in + the range of normalized floating point numbers. */ + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + + /** The maximum positive integer such that @c radix raised to the power of + (one less than that integer) is a representable finite floating point + number. */ + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + + /** The maximum positive integer such that 10 raised to that power is in + the range of representable finite floating point numbers. */ + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + /** True if the type has a representation for positive infinity. */ + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + + /** True if the type has a representation for a quiet (non-signaling) + Not a Number. */ + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + + /** True if the type has a representation for a signaling + Not a Number. */ + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + + /** See std::float_denorm_style for more information. */ + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm = denorm_absent; + + /** True if loss of accuracy is detected as a denormalization loss, + rather than as an inexact result. */ + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + /** True if-and-only-if the type adheres to the IEC 559 standard, also + known as IEEE 754. (Only makes sense for floating point types.) */ + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + + /** True if the set of values representable by the type is + finite. All built-in types are bounded, this member would be + false for arbitrary precision types. */ + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = false; + + /** True if the type is @e modulo. A type is modulo if, for any + operation involving +, -, or * on values of that type whose + result would fall outside the range [min(),max()], the value + returned differs from the true value by an integer multiple of + max() - min() + 1. On most machines, this is false for floating + types, true for unsigned integers, and true for signed integers. + See PR22200 about signed integers. */ + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + /** True if trapping is implemented for this type. */ + static _GLIBCXX_USE_CONSTEXPR bool traps = false; + + /** True if tininess is detected before rounding. (see IEC 559) */ + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + + /** See std::float_round_style for more information. This is only + meaningful for floating types; integer types will all be + round_toward_zero. */ + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style = + round_toward_zero; + }; + + /** + * @brief Properties of fundamental types. + * + * This class allows a program to obtain information about the + * representation of a fundamental type on a given platform. For + * non-fundamental types, the functions will return 0 and the data + * members will all be @c false. + */ + template + struct numeric_limits : public __numeric_limits_base + { + /** The minimum finite value, or for floating types with + denormalization, the minimum positive normalized value. */ + static _GLIBCXX_CONSTEXPR _Tp + min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + + /** The maximum finite value. */ + static _GLIBCXX_CONSTEXPR _Tp + max() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + +#if __cplusplus >= 201103L + /** A finite value x such that there is no other finite value y + * where y < x. */ + static constexpr _Tp + lowest() noexcept { return _Tp(); } +#endif + + /** The @e machine @e epsilon: the difference between 1 and the least + value greater than 1 that is representable. */ + static _GLIBCXX_CONSTEXPR _Tp + epsilon() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + + /** The maximum rounding error measurement (see LIA-1). */ + static _GLIBCXX_CONSTEXPR _Tp + round_error() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + + /** The representation of positive infinity, if @c has_infinity. */ + static _GLIBCXX_CONSTEXPR _Tp + infinity() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + + /** The representation of a quiet Not a Number, + if @c has_quiet_NaN. */ + static _GLIBCXX_CONSTEXPR _Tp + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + + /** The representation of a signaling Not a Number, if + @c has_signaling_NaN. */ + static _GLIBCXX_CONSTEXPR _Tp + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + + /** The minimum positive denormalized value. For types where + @c has_denorm is false, this is the minimum positive normalized + value. */ + static _GLIBCXX_CONSTEXPR _Tp + denorm_min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); } + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 559. numeric_limits + + template + struct numeric_limits + : public numeric_limits<_Tp> { }; + + template + struct numeric_limits + : public numeric_limits<_Tp> { }; + + template + struct numeric_limits + : public numeric_limits<_Tp> { }; + + // Now there follow 16 explicit specializations. Yes, 16. Make sure + // you get the count right. (18 in C++11 mode, with char16_t and char32_t.) + // (+1 if char8_t is enabled.) + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 184. numeric_limits wording problems + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR bool + min() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_CONSTEXPR bool + max() _GLIBCXX_USE_NOEXCEPT { return true; } + +#if __cplusplus >= 201103L + static constexpr bool + lowest() noexcept { return min(); } +#endif + static _GLIBCXX_USE_CONSTEXPR int digits = 1; + static _GLIBCXX_USE_CONSTEXPR int digits10 = 0; +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR bool + epsilon() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_CONSTEXPR bool + round_error() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR bool + infinity() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_CONSTEXPR bool + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_CONSTEXPR bool + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_CONSTEXPR bool + denorm_min() _GLIBCXX_USE_NOEXCEPT { return false; } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + // It is not clear what it means for a boolean type to trap. + // This is a DR on the LWG issue list. Here, I use integer + // promotion semantics. + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR char + min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min(char); } + + static _GLIBCXX_CONSTEXPR char + max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max(char); } + +#if __cplusplus >= 201103L + static constexpr char + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char); + static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char); + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR char + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR char + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR + char infinity() _GLIBCXX_USE_NOEXCEPT { return char(); } + + static _GLIBCXX_CONSTEXPR char + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); } + + static _GLIBCXX_CONSTEXPR char + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char(); } + + static _GLIBCXX_CONSTEXPR char + denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR signed char + min() _GLIBCXX_USE_NOEXCEPT { return -__SCHAR_MAX__ - 1; } + + static _GLIBCXX_CONSTEXPR signed char + max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__; } + +#if __cplusplus >= 201103L + static constexpr signed char + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (signed char); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (signed char); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR signed char + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR signed char + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR signed char + infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR signed char + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR signed char + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR signed char + denorm_min() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR unsigned char + min() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned char + max() _GLIBCXX_USE_NOEXCEPT { return __SCHAR_MAX__ * 2U + 1; } + +#if __cplusplus >= 201103L + static constexpr unsigned char + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits + = __glibcxx_digits (unsigned char); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (unsigned char); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR unsigned char + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned char + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR unsigned char + infinity() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned char + quiet_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned char + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned char + denorm_min() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR wchar_t + min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (wchar_t); } + + static _GLIBCXX_CONSTEXPR wchar_t + max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (wchar_t); } + +#if __cplusplus >= 201103L + static constexpr wchar_t + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (wchar_t); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (wchar_t); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (wchar_t); + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR wchar_t + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR wchar_t + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR wchar_t + infinity() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } + + static _GLIBCXX_CONSTEXPR wchar_t + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } + + static _GLIBCXX_CONSTEXPR wchar_t + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } + + static _GLIBCXX_CONSTEXPR wchar_t + denorm_min() _GLIBCXX_USE_NOEXCEPT { return wchar_t(); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + +#if _GLIBCXX_USE_CHAR8_T + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR char8_t + min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min (char8_t); } + + static _GLIBCXX_CONSTEXPR char8_t + max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max (char8_t); } + + static _GLIBCXX_CONSTEXPR char8_t + lowest() _GLIBCXX_USE_NOEXCEPT { return min(); } + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (char8_t); + static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (char8_t); + static _GLIBCXX_USE_CONSTEXPR int max_digits10 = 0; + static _GLIBCXX_USE_CONSTEXPR bool is_signed = __glibcxx_signed (char8_t); + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR char8_t + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR char8_t + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR char8_t + infinity() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } + + static _GLIBCXX_CONSTEXPR char8_t + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } + + static _GLIBCXX_CONSTEXPR char8_t + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } + + static _GLIBCXX_CONSTEXPR char8_t + denorm_min() _GLIBCXX_USE_NOEXCEPT { return char8_t(); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = !is_signed; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; +#endif + +#if __cplusplus >= 201103L + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static constexpr bool is_specialized = true; + + static constexpr char16_t + min() noexcept { return __glibcxx_min (char16_t); } + + static constexpr char16_t + max() noexcept { return __glibcxx_max (char16_t); } + + static constexpr char16_t + lowest() noexcept { return min(); } + + static constexpr int digits = __glibcxx_digits (char16_t); + static constexpr int digits10 = __glibcxx_digits10 (char16_t); + static constexpr int max_digits10 = 0; + static constexpr bool is_signed = __glibcxx_signed (char16_t); + static constexpr bool is_integer = true; + static constexpr bool is_exact = true; + static constexpr int radix = 2; + + static constexpr char16_t + epsilon() noexcept { return 0; } + + static constexpr char16_t + round_error() noexcept { return 0; } + + static constexpr int min_exponent = 0; + static constexpr int min_exponent10 = 0; + static constexpr int max_exponent = 0; + static constexpr int max_exponent10 = 0; + + static constexpr bool has_infinity = false; + static constexpr bool has_quiet_NaN = false; + static constexpr bool has_signaling_NaN = false; + static constexpr float_denorm_style has_denorm = denorm_absent; + static constexpr bool has_denorm_loss = false; + + static constexpr char16_t + infinity() noexcept { return char16_t(); } + + static constexpr char16_t + quiet_NaN() noexcept { return char16_t(); } + + static constexpr char16_t + signaling_NaN() noexcept { return char16_t(); } + + static constexpr char16_t + denorm_min() noexcept { return char16_t(); } + + static constexpr bool is_iec559 = false; + static constexpr bool is_bounded = true; + static constexpr bool is_modulo = !is_signed; + + static constexpr bool traps = __glibcxx_integral_traps; + static constexpr bool tinyness_before = false; + static constexpr float_round_style round_style = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static constexpr bool is_specialized = true; + + static constexpr char32_t + min() noexcept { return __glibcxx_min (char32_t); } + + static constexpr char32_t + max() noexcept { return __glibcxx_max (char32_t); } + + static constexpr char32_t + lowest() noexcept { return min(); } + + static constexpr int digits = __glibcxx_digits (char32_t); + static constexpr int digits10 = __glibcxx_digits10 (char32_t); + static constexpr int max_digits10 = 0; + static constexpr bool is_signed = __glibcxx_signed (char32_t); + static constexpr bool is_integer = true; + static constexpr bool is_exact = true; + static constexpr int radix = 2; + + static constexpr char32_t + epsilon() noexcept { return 0; } + + static constexpr char32_t + round_error() noexcept { return 0; } + + static constexpr int min_exponent = 0; + static constexpr int min_exponent10 = 0; + static constexpr int max_exponent = 0; + static constexpr int max_exponent10 = 0; + + static constexpr bool has_infinity = false; + static constexpr bool has_quiet_NaN = false; + static constexpr bool has_signaling_NaN = false; + static constexpr float_denorm_style has_denorm = denorm_absent; + static constexpr bool has_denorm_loss = false; + + static constexpr char32_t + infinity() noexcept { return char32_t(); } + + static constexpr char32_t + quiet_NaN() noexcept { return char32_t(); } + + static constexpr char32_t + signaling_NaN() noexcept { return char32_t(); } + + static constexpr char32_t + denorm_min() noexcept { return char32_t(); } + + static constexpr bool is_iec559 = false; + static constexpr bool is_bounded = true; + static constexpr bool is_modulo = !is_signed; + + static constexpr bool traps = __glibcxx_integral_traps; + static constexpr bool tinyness_before = false; + static constexpr float_round_style round_style = round_toward_zero; + }; +#endif + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR short + min() _GLIBCXX_USE_NOEXCEPT { return -__SHRT_MAX__ - 1; } + + static _GLIBCXX_CONSTEXPR short + max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__; } + +#if __cplusplus >= 201103L + static constexpr short + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (short); + static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (short); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR short + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR short + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR short + infinity() _GLIBCXX_USE_NOEXCEPT { return short(); } + + static _GLIBCXX_CONSTEXPR short + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); } + + static _GLIBCXX_CONSTEXPR short + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return short(); } + + static _GLIBCXX_CONSTEXPR short + denorm_min() _GLIBCXX_USE_NOEXCEPT { return short(); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR unsigned short + min() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned short + max() _GLIBCXX_USE_NOEXCEPT { return __SHRT_MAX__ * 2U + 1; } + +#if __cplusplus >= 201103L + static constexpr unsigned short + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits + = __glibcxx_digits (unsigned short); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (unsigned short); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR unsigned short + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned short + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR unsigned short + infinity() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned short + quiet_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned short + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned short + denorm_min() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR int + min() _GLIBCXX_USE_NOEXCEPT { return -__INT_MAX__ - 1; } + + static _GLIBCXX_CONSTEXPR int + max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__; } + +#if __cplusplus >= 201103L + static constexpr int + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (int); + static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (int); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR int + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR int + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR int + infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR int + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR int + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR int + denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR unsigned int + min() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned int + max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__ * 2U + 1; } + +#if __cplusplus >= 201103L + static constexpr unsigned int + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits + = __glibcxx_digits (unsigned int); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (unsigned int); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR unsigned int + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned int + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR unsigned int + infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned int + quiet_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned int + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned int + denorm_min() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR long + min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_MAX__ - 1; } + + static _GLIBCXX_CONSTEXPR long + max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__; } + +#if __cplusplus >= 201103L + static constexpr long + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __glibcxx_digits (long); + static _GLIBCXX_USE_CONSTEXPR int digits10 = __glibcxx_digits10 (long); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR long + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR long + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR long + infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR long + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR long + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR long + denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR unsigned long + min() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned long + max() _GLIBCXX_USE_NOEXCEPT { return __LONG_MAX__ * 2UL + 1; } + +#if __cplusplus >= 201103L + static constexpr unsigned long + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits + = __glibcxx_digits (unsigned long); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (unsigned long); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR unsigned long + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned long + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR unsigned long + infinity() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned long + quiet_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned long + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned long + denorm_min() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR long long + min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_LONG_MAX__ - 1; } + + static _GLIBCXX_CONSTEXPR long long + max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__; } + +#if __cplusplus >= 201103L + static constexpr long long + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits + = __glibcxx_digits (long long); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (long long); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR long long + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR long long + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR long long + infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR long long + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR long long + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR long long + denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR unsigned long long + min() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned long long + max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__ * 2ULL + 1; } + +#if __cplusplus >= 201103L + static constexpr unsigned long long + lowest() noexcept { return min(); } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits + = __glibcxx_digits (unsigned long long); + static _GLIBCXX_USE_CONSTEXPR int digits10 + = __glibcxx_digits10 (unsigned long long); +#if __cplusplus >= 201103L + static constexpr int max_digits10 = 0; +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; + static _GLIBCXX_USE_CONSTEXPR int radix = 2; + + static _GLIBCXX_CONSTEXPR unsigned long long + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_CONSTEXPR unsigned long long + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; + + static _GLIBCXX_CONSTEXPR unsigned long long + infinity() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned long long + quiet_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned long long + signaling_NaN() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_CONSTEXPR unsigned long long + denorm_min() _GLIBCXX_USE_NOEXCEPT + { return static_cast(0); } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_toward_zero; + }; + +#if !defined(__STRICT_ANSI__) + +#define __INT_N(TYPE, BITSIZE, EXT, UEXT) \ + template<> \ + struct numeric_limits \ + { \ + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + min() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_min_b (TYPE, BITSIZE); } \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + max() _GLIBCXX_USE_NOEXCEPT { return __glibcxx_max_b (TYPE, BITSIZE); } \ + \ + static _GLIBCXX_USE_CONSTEXPR int digits \ + = BITSIZE - 1; \ + static _GLIBCXX_USE_CONSTEXPR int digits10 \ + = (BITSIZE - 1) * 643L / 2136; \ + \ + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; \ + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; \ + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; \ + static _GLIBCXX_USE_CONSTEXPR int radix = 2; \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } \ + \ + EXT \ + \ + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; \ + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; \ + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; \ + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; \ + \ + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; \ + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; \ + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; \ + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \ + = denorm_absent; \ + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + infinity() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + quiet_NaN() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + signaling_NaN() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_CONSTEXPR TYPE \ + denorm_min() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; \ + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \ + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; \ + \ + static _GLIBCXX_USE_CONSTEXPR bool traps \ + = __glibcxx_integral_traps; \ + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \ + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \ + = round_toward_zero; \ + }; \ + \ + template<> \ + struct numeric_limits \ + { \ + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + min() _GLIBCXX_USE_NOEXCEPT { return 0; } \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + max() _GLIBCXX_USE_NOEXCEPT \ + { return __glibcxx_max_b (unsigned TYPE, BITSIZE); } \ + \ + UEXT \ + \ + static _GLIBCXX_USE_CONSTEXPR int digits \ + = BITSIZE; \ + static _GLIBCXX_USE_CONSTEXPR int digits10 \ + = BITSIZE * 643L / 2136; \ + static _GLIBCXX_USE_CONSTEXPR bool is_signed = false; \ + static _GLIBCXX_USE_CONSTEXPR bool is_integer = true; \ + static _GLIBCXX_USE_CONSTEXPR bool is_exact = true; \ + static _GLIBCXX_USE_CONSTEXPR int radix = 2; \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + epsilon() _GLIBCXX_USE_NOEXCEPT { return 0; } \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + round_error() _GLIBCXX_USE_NOEXCEPT { return 0; } \ + \ + static _GLIBCXX_USE_CONSTEXPR int min_exponent = 0; \ + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = 0; \ + static _GLIBCXX_USE_CONSTEXPR int max_exponent = 0; \ + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = 0; \ + \ + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = false; \ + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = false; \ + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = false; \ + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm \ + = denorm_absent; \ + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss = false; \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + infinity() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + quiet_NaN() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + signaling_NaN() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_CONSTEXPR unsigned TYPE \ + denorm_min() _GLIBCXX_USE_NOEXCEPT \ + { return static_cast(0); } \ + \ + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 = false; \ + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; \ + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = true; \ + \ + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_integral_traps; \ + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = false; \ + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style \ + = round_toward_zero; \ + }; + +#if __cplusplus >= 201103L + +#define __INT_N_201103(TYPE) \ + static constexpr TYPE \ + lowest() noexcept { return min(); } \ + static constexpr int max_digits10 = 0; + +#define __INT_N_U201103(TYPE) \ + static constexpr unsigned TYPE \ + lowest() noexcept { return min(); } \ + static constexpr int max_digits10 = 0; + +#else +#define __INT_N_201103(TYPE) +#define __INT_N_U201103(TYPE) +#endif + +#ifdef __GLIBCXX_TYPE_INT_N_0 + __INT_N(__GLIBCXX_TYPE_INT_N_0, __GLIBCXX_BITSIZE_INT_N_0, + __INT_N_201103 (__GLIBCXX_TYPE_INT_N_0), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_0)) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_1 + __INT_N (__GLIBCXX_TYPE_INT_N_1, __GLIBCXX_BITSIZE_INT_N_1, + __INT_N_201103 (__GLIBCXX_TYPE_INT_N_1), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_1)) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_2 + __INT_N (__GLIBCXX_TYPE_INT_N_2, __GLIBCXX_BITSIZE_INT_N_2, + __INT_N_201103 (__GLIBCXX_TYPE_INT_N_2), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_2)) +#endif +#ifdef __GLIBCXX_TYPE_INT_N_3 + __INT_N (__GLIBCXX_TYPE_INT_N_3, __GLIBCXX_BITSIZE_INT_N_3, + __INT_N_201103 (__GLIBCXX_TYPE_INT_N_3), __INT_N_U201103 (__GLIBCXX_TYPE_INT_N_3)) +#endif + +#undef __INT_N +#undef __INT_N_201103 +#undef __INT_N_U201103 + +#endif + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR float + min() _GLIBCXX_USE_NOEXCEPT { return __FLT_MIN__; } + + static _GLIBCXX_CONSTEXPR float + max() _GLIBCXX_USE_NOEXCEPT { return __FLT_MAX__; } + +#if __cplusplus >= 201103L + static constexpr float + lowest() noexcept { return -__FLT_MAX__; } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __FLT_MANT_DIG__; + static _GLIBCXX_USE_CONSTEXPR int digits10 = __FLT_DIG__; +#if __cplusplus >= 201103L + static constexpr int max_digits10 + = __glibcxx_max_digits10 (__FLT_MANT_DIG__); +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; + static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; + + static _GLIBCXX_CONSTEXPR float + epsilon() _GLIBCXX_USE_NOEXCEPT { return __FLT_EPSILON__; } + + static _GLIBCXX_CONSTEXPR float + round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5F; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = __FLT_MIN_EXP__; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __FLT_MIN_10_EXP__; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = __FLT_MAX_EXP__; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __FLT_MAX_10_EXP__; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __FLT_HAS_INFINITY__; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __FLT_HAS_QUIET_NAN__; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = bool(__FLT_HAS_DENORM__) ? denorm_present : denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss + = __glibcxx_float_has_denorm_loss; + + static _GLIBCXX_CONSTEXPR float + infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_valf(); } + + static _GLIBCXX_CONSTEXPR float + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanf(""); } + + static _GLIBCXX_CONSTEXPR float + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansf(""); } + + static _GLIBCXX_CONSTEXPR float + denorm_min() _GLIBCXX_USE_NOEXCEPT { return __FLT_DENORM_MIN__; } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 + = has_infinity && has_quiet_NaN && has_denorm == denorm_present; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_float_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before + = __glibcxx_float_tinyness_before; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_to_nearest; + }; + +#undef __glibcxx_float_has_denorm_loss +#undef __glibcxx_float_traps +#undef __glibcxx_float_tinyness_before + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR double + min() _GLIBCXX_USE_NOEXCEPT { return __DBL_MIN__; } + + static _GLIBCXX_CONSTEXPR double + max() _GLIBCXX_USE_NOEXCEPT { return __DBL_MAX__; } + +#if __cplusplus >= 201103L + static constexpr double + lowest() noexcept { return -__DBL_MAX__; } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __DBL_MANT_DIG__; + static _GLIBCXX_USE_CONSTEXPR int digits10 = __DBL_DIG__; +#if __cplusplus >= 201103L + static constexpr int max_digits10 + = __glibcxx_max_digits10 (__DBL_MANT_DIG__); +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; + static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; + + static _GLIBCXX_CONSTEXPR double + epsilon() _GLIBCXX_USE_NOEXCEPT { return __DBL_EPSILON__; } + + static _GLIBCXX_CONSTEXPR double + round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = __DBL_MIN_EXP__; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __DBL_MIN_10_EXP__; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = __DBL_MAX_EXP__; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __DBL_MAX_10_EXP__; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __DBL_HAS_INFINITY__; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __DBL_HAS_QUIET_NAN__; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = bool(__DBL_HAS_DENORM__) ? denorm_present : denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss + = __glibcxx_double_has_denorm_loss; + + static _GLIBCXX_CONSTEXPR double + infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_val(); } + + static _GLIBCXX_CONSTEXPR double + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nan(""); } + + static _GLIBCXX_CONSTEXPR double + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nans(""); } + + static _GLIBCXX_CONSTEXPR double + denorm_min() _GLIBCXX_USE_NOEXCEPT { return __DBL_DENORM_MIN__; } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 + = has_infinity && has_quiet_NaN && has_denorm == denorm_present; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_double_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before + = __glibcxx_double_tinyness_before; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style + = round_to_nearest; + }; + +#undef __glibcxx_double_has_denorm_loss +#undef __glibcxx_double_traps +#undef __glibcxx_double_tinyness_before + + /// numeric_limits specialization. + template<> + struct numeric_limits + { + static _GLIBCXX_USE_CONSTEXPR bool is_specialized = true; + + static _GLIBCXX_CONSTEXPR long double + min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MIN__; } + + static _GLIBCXX_CONSTEXPR long double + max() _GLIBCXX_USE_NOEXCEPT { return __LDBL_MAX__; } + +#if __cplusplus >= 201103L + static constexpr long double + lowest() noexcept { return -__LDBL_MAX__; } +#endif + + static _GLIBCXX_USE_CONSTEXPR int digits = __LDBL_MANT_DIG__; + static _GLIBCXX_USE_CONSTEXPR int digits10 = __LDBL_DIG__; +#if __cplusplus >= 201103L + static _GLIBCXX_USE_CONSTEXPR int max_digits10 + = __glibcxx_max_digits10 (__LDBL_MANT_DIG__); +#endif + static _GLIBCXX_USE_CONSTEXPR bool is_signed = true; + static _GLIBCXX_USE_CONSTEXPR bool is_integer = false; + static _GLIBCXX_USE_CONSTEXPR bool is_exact = false; + static _GLIBCXX_USE_CONSTEXPR int radix = __FLT_RADIX__; + + static _GLIBCXX_CONSTEXPR long double + epsilon() _GLIBCXX_USE_NOEXCEPT { return __LDBL_EPSILON__; } + + static _GLIBCXX_CONSTEXPR long double + round_error() _GLIBCXX_USE_NOEXCEPT { return 0.5L; } + + static _GLIBCXX_USE_CONSTEXPR int min_exponent = __LDBL_MIN_EXP__; + static _GLIBCXX_USE_CONSTEXPR int min_exponent10 = __LDBL_MIN_10_EXP__; + static _GLIBCXX_USE_CONSTEXPR int max_exponent = __LDBL_MAX_EXP__; + static _GLIBCXX_USE_CONSTEXPR int max_exponent10 = __LDBL_MAX_10_EXP__; + + static _GLIBCXX_USE_CONSTEXPR bool has_infinity = __LDBL_HAS_INFINITY__; + static _GLIBCXX_USE_CONSTEXPR bool has_quiet_NaN = __LDBL_HAS_QUIET_NAN__; + static _GLIBCXX_USE_CONSTEXPR bool has_signaling_NaN = has_quiet_NaN; + static _GLIBCXX_USE_CONSTEXPR float_denorm_style has_denorm + = bool(__LDBL_HAS_DENORM__) ? denorm_present : denorm_absent; + static _GLIBCXX_USE_CONSTEXPR bool has_denorm_loss + = __glibcxx_long_double_has_denorm_loss; + + static _GLIBCXX_CONSTEXPR long double + infinity() _GLIBCXX_USE_NOEXCEPT { return __builtin_huge_vall(); } + + static _GLIBCXX_CONSTEXPR long double + quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nanl(""); } + + static _GLIBCXX_CONSTEXPR long double + signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return __builtin_nansl(""); } + + static _GLIBCXX_CONSTEXPR long double + denorm_min() _GLIBCXX_USE_NOEXCEPT { return __LDBL_DENORM_MIN__; } + + static _GLIBCXX_USE_CONSTEXPR bool is_iec559 + = has_infinity && has_quiet_NaN && has_denorm == denorm_present; + static _GLIBCXX_USE_CONSTEXPR bool is_bounded = true; + static _GLIBCXX_USE_CONSTEXPR bool is_modulo = false; + + static _GLIBCXX_USE_CONSTEXPR bool traps = __glibcxx_long_double_traps; + static _GLIBCXX_USE_CONSTEXPR bool tinyness_before = + __glibcxx_long_double_tinyness_before; + static _GLIBCXX_USE_CONSTEXPR float_round_style round_style = + round_to_nearest; + }; + +#undef __glibcxx_long_double_has_denorm_loss +#undef __glibcxx_long_double_traps +#undef __glibcxx_long_double_tinyness_before + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#undef __glibcxx_signed +#undef __glibcxx_min +#undef __glibcxx_max +#undef __glibcxx_digits +#undef __glibcxx_digits10 +#undef __glibcxx_max_digits10 + +#endif // _GLIBCXX_NUMERIC_LIMITS diff --git a/resources/sources/avr-libstdcpp/include/list b/resources/sources/avr-libstdcpp/include/list new file mode 100644 index 000000000..7b3d3c2e8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/list @@ -0,0 +1,109 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/list + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_LIST +#define _GLIBCXX_LIST 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template + using list = std::list<_Tp, polymorphic_allocator<_Tp>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_erase_if 202002L + + template + inline typename list<_Tp, _Alloc>::size_type + erase_if(list<_Tp, _Alloc>& __cont, _Predicate __pred) + { return __cont.remove_if(__pred); } + + template + inline typename list<_Tp, _Alloc>::size_type + erase(list<_Tp, _Alloc>& __cont, const _Up& __value) + { + using __elem_type = typename list<_Tp, _Alloc>::value_type; + return std::erase_if(__cont, [&](__elem_type& __elem) { + return __elem == __value; + }); + } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif /* _GLIBCXX_LIST */ diff --git a/resources/sources/avr-libstdcpp/include/map b/resources/sources/avr-libstdcpp/include/map new file mode 100644 index 000000000..9e8f76b48 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/map @@ -0,0 +1,109 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/map + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_MAP +#define _GLIBCXX_MAP 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template> + using map + = std::map<_Key, _Tp, _Cmp, + polymorphic_allocator>>; + template> + using multimap + = std::multimap<_Key, _Tp, _Cmp, + polymorphic_allocator>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + template + inline typename map<_Key, _Tp, _Compare, _Alloc>::size_type + erase_if(map<_Key, _Tp, _Compare, _Alloc>& __cont, _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } + + template + inline typename multimap<_Key, _Tp, _Compare, _Alloc>::size_type + erase_if(multimap<_Key, _Tp, _Compare, _Alloc>& __cont, _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif /* _GLIBCXX_MAP */ diff --git a/resources/sources/avr-libstdcpp/include/memory b/resources/sources/avr-libstdcpp/include/memory new file mode 100644 index 000000000..0ed1a86b5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/memory @@ -0,0 +1,404 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1997-1999 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file include/memory + * This is a Standard C++ Library header. + * @ingroup memory + */ + +#ifndef _GLIBCXX_MEMORY +#define _GLIBCXX_MEMORY 1 + +#pragma GCC system_header + +/** + * @defgroup memory Memory + * @ingroup utilities + * + * Components for memory allocation, deallocation, and management. + */ + +/** + * @defgroup pointer_abstractions Pointer Abstractions + * @ingroup memory + * + * Smart pointers, etc. + */ + +#include +#include +#include +#include +#include +#include +#include + +#if __cplusplus >= 201103L +# include +# include +# include // std::less +# include +# include +# include +# include +# include +#endif + +#if __cplusplus >= 201103L +#include +#if __cplusplus > 201703L +# include // for has_single_bit +# include // for placement operator new +# include // for tuple, make_tuple, make_from_tuple +#endif +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +/** + * @brief Fit aligned storage in buffer. + * @ingroup memory + * + * This function tries to fit @a __size bytes of storage with alignment + * @a __align into the buffer @a __ptr of size @a __space bytes. If such + * a buffer fits then @a __ptr is changed to point to the first byte of the + * aligned storage and @a __space is reduced by the bytes used for alignment. + * + * C++11 20.6.5 [ptr.align] + * + * @param __align A fundamental or extended alignment value. + * @param __size Size of the aligned storage required. + * @param __ptr Pointer to a buffer of @a __space bytes. + * @param __space Size of the buffer pointed to by @a __ptr. + * @return the updated pointer if the aligned storage fits, otherwise nullptr. + * + */ +inline void* +align(size_t __align, size_t __size, void*& __ptr, size_t& __space) noexcept +{ +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + const auto __intptr = reinterpret_cast(__ptr); +#else + // Cannot use std::uintptr_t so assume that std::size_t can be used instead. + static_assert(sizeof(size_t) >= sizeof(void*), + "std::size_t must be a suitable substitute for std::uintptr_t"); + const auto __intptr = reinterpret_cast(__ptr); +#endif + const auto __aligned = (__intptr - 1u + __align) & -__align; + const auto __diff = __aligned - __intptr; + if ((__size + __diff) > __space) + return nullptr; + else + { + __space -= __diff; + return __ptr = reinterpret_cast(__aligned); + } +} + +/** @defgroup ptr_safety Pointer Safety and Garbage Collection + * @ingroup memory + * + * Utilities to assist with garbage collection in an implementation + * that supports strict pointer safety. + * This implementation only supports relaxed pointer safety + * and so these functions have no effect. + * + * C++11 20.6.4 [util.dynamic.safety], Pointer safety + * + * @{ + */ + +/// Constants representing the different types of pointer safety. +enum class pointer_safety { relaxed, preferred, strict }; + +/// Inform a garbage collector that an object is still in use. +inline void +declare_reachable(void*) { } + +/// Unregister an object previously registered with declare_reachable. +template + inline _Tp* + undeclare_reachable(_Tp* __p) { return __p; } + +/// Inform a garbage collector that a region of memory need not be traced. +inline void +declare_no_pointers(char*, size_t) { } + +/// Unregister a range previously registered with declare_no_pointers. +inline void +undeclare_no_pointers(char*, size_t) { } + +/// The type of pointer safety supported by the implementation. +inline pointer_safety +get_pointer_safety() noexcept { return pointer_safety::relaxed; } +// @} + +#if __cplusplus > 201703L +#define __cpp_lib_assume_aligned 201811L + /** @brief Inform the compiler that a pointer is aligned. + * + * @tparam _Align An alignment value (i.e. a power of two) + * @tparam _Tp An object type + * @param __ptr A pointer that is aligned to _Align + * + * C++20 20.10.6 [ptr.align] + * + * @ingroup memory + */ + template + [[nodiscard,__gnu__::__always_inline__]] + constexpr _Tp* + assume_aligned(_Tp* __ptr) noexcept + { + static_assert(std::has_single_bit(_Align)); + if (std::is_constant_evaluated()) + return __ptr; + else + { + // This function is expected to be used in hot code, where + // __glibcxx_assert would add unwanted overhead. + _GLIBCXX_DEBUG_ASSERT((std::uintptr_t)__ptr % _Align == 0); + return static_cast<_Tp*>(__builtin_assume_aligned(__ptr, _Align)); + } + } +#endif // C++2a + +#if __cplusplus > 201703L + template + struct __is_pair : false_type { }; + template + struct __is_pair> : true_type { }; + template + struct __is_pair> : true_type { }; + +/** @addtogroup allocators + * @{ + */ + template>>, + typename _Alloc, typename... _Args> + constexpr auto + __uses_alloc_args(const _Alloc& __a, _Args&&... __args) noexcept + { + if constexpr (uses_allocator_v, _Alloc>) + { + if constexpr (is_constructible_v<_Tp, allocator_arg_t, + const _Alloc&, _Args...>) + { + return tuple( + allocator_arg, __a, std::forward<_Args>(__args)...); + } + else + { + static_assert(is_constructible_v<_Tp, _Args..., const _Alloc&>, + "construction with an allocator must be possible" + " if uses_allocator is true"); + + return tuple<_Args&&..., const _Alloc&>( + std::forward<_Args>(__args)..., __a); + } + } + else + { + static_assert(is_constructible_v<_Tp, _Args...>); + + return tuple<_Args&&...>(std::forward<_Args>(__args)...); + } + } + +#if __cpp_concepts + template + concept _Std_pair = __is_pair<_Tp>::value; +#endif + +// This is a temporary workaround until -fconcepts is implied by -std=gnu++2a +#if __cpp_concepts +# define _GLIBCXX_STD_PAIR_CONSTRAINT(T) _Std_pair T +# define _GLIBCXX_STD_PAIR_CONSTRAINT_(T) _Std_pair T +#else +# define _GLIBCXX_STD_PAIR_CONSTRAINT(T) \ + typename T, typename __ = _Require<__is_pair> +# define _GLIBCXX_STD_PAIR_CONSTRAINT_(T) typename T, typename +#endif + + template>>, +#endif + typename _Alloc, typename... _Args> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a, + _Args&&... __args) noexcept +#if __cpp_concepts + requires (! _Std_pair<_Tp>) +#endif + { + return std::__uses_alloc_args<_Tp>(__a, std::forward<_Args>(__args)...); + } + + template<_GLIBCXX_STD_PAIR_CONSTRAINT(_Tp), typename _Alloc, + typename _Tuple1, typename _Tuple2> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a, piecewise_construct_t, + _Tuple1&& __x, _Tuple2&& __y) noexcept; + + template<_GLIBCXX_STD_PAIR_CONSTRAINT(_Tp), typename _Alloc> + constexpr auto + uses_allocator_construction_args(const _Alloc&) noexcept; + + template<_GLIBCXX_STD_PAIR_CONSTRAINT(_Tp), typename _Alloc, + typename _Up, typename _Vp> + constexpr auto + uses_allocator_construction_args(const _Alloc&, _Up&&, _Vp&&) noexcept; + + template<_GLIBCXX_STD_PAIR_CONSTRAINT(_Tp), typename _Alloc, + typename _Up, typename _Vp> + constexpr auto + uses_allocator_construction_args(const _Alloc&, + const pair<_Up, _Vp>&) noexcept; + + template<_GLIBCXX_STD_PAIR_CONSTRAINT(_Tp), typename _Alloc, + typename _Up, typename _Vp> + constexpr auto + uses_allocator_construction_args(const _Alloc&, pair<_Up, _Vp>&&) noexcept; + + template<_GLIBCXX_STD_PAIR_CONSTRAINT_(_Tp), typename _Alloc, + typename _Tuple1, typename _Tuple2> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a, piecewise_construct_t, + _Tuple1&& __x, _Tuple2&& __y) noexcept + { + using _Tp1 = typename _Tp::first_type; + using _Tp2 = typename _Tp::second_type; + + return std::make_tuple(piecewise_construct, + std::apply([&__a](auto&&... __args1) { + return std::uses_allocator_construction_args<_Tp1>( + __a, std::forward(__args1)...); + }, std::forward<_Tuple1>(__x)), + std::apply([&__a](auto&&... __args2) { + return std::uses_allocator_construction_args<_Tp2>( + __a, std::forward(__args2)...); + }, std::forward<_Tuple2>(__y))); + } + + template<_GLIBCXX_STD_PAIR_CONSTRAINT_(_Tp), typename _Alloc> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a) noexcept + { + using _Tp1 = typename _Tp::first_type; + using _Tp2 = typename _Tp::second_type; + + return std::make_tuple(piecewise_construct, + std::uses_allocator_construction_args<_Tp1>(__a), + std::uses_allocator_construction_args<_Tp2>(__a)); + } + + template<_GLIBCXX_STD_PAIR_CONSTRAINT_(_Tp), typename _Alloc, + typename _Up, typename _Vp> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a, _Up&& __u, _Vp&& __v) + noexcept + { + using _Tp1 = typename _Tp::first_type; + using _Tp2 = typename _Tp::second_type; + + return std::make_tuple(piecewise_construct, + std::uses_allocator_construction_args<_Tp1>(__a, + std::forward<_Up>(__u)), + std::uses_allocator_construction_args<_Tp2>(__a, + std::forward<_Vp>(__v))); + } + + template<_GLIBCXX_STD_PAIR_CONSTRAINT_(_Tp), typename _Alloc, + typename _Up, typename _Vp> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a, + const pair<_Up, _Vp>& __pr) noexcept + { + using _Tp1 = typename _Tp::first_type; + using _Tp2 = typename _Tp::second_type; + + return std::make_tuple(piecewise_construct, + std::uses_allocator_construction_args<_Tp1>(__a, __pr.first), + std::uses_allocator_construction_args<_Tp2>(__a, __pr.second)); + } + + template<_GLIBCXX_STD_PAIR_CONSTRAINT_(_Tp), typename _Alloc, + typename _Up, typename _Vp> + constexpr auto + uses_allocator_construction_args(const _Alloc& __a, + pair<_Up, _Vp>&& __pr) noexcept + { + using _Tp1 = typename _Tp::first_type; + using _Tp2 = typename _Tp::second_type; + + return std::make_tuple(piecewise_construct, + std::uses_allocator_construction_args<_Tp1>(__a, + std::move(__pr).first), + std::uses_allocator_construction_args<_Tp2>(__a, + std::move(__pr).second)); + } + + template + inline _Tp + make_obj_using_allocator(const _Alloc& __a, _Args&&... __args) + { + return std::make_from_tuple<_Tp>( + std::uses_allocator_construction_args<_Tp>(__a, + std::forward<_Args>(__args)...)); + } + + template + inline _Tp* + uninitialized_construct_using_allocator(_Tp* __p, const _Alloc& __a, + _Args&&... __args) + { + return std::apply([&](auto&&... __xs) { + return std::construct_at(__p, std::forward(__xs)...); + }, std::uses_allocator_construction_args<_Tp>(__a, + std::forward<_Args>(__args)...)); + } +// @} + +#endif // C++2a + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +#endif // C++11 + +#endif /* _GLIBCXX_MEMORY */ diff --git a/resources/sources/avr-libstdcpp/include/mutex b/resources/sources/avr-libstdcpp/include/mutex new file mode 100644 index 000000000..389504d7d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/mutex @@ -0,0 +1,746 @@ +// -*- C++ -*- + +// Copyright (C) 2003-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/mutex + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_MUTEX +#define _GLIBCXX_MUTEX 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include +#ifndef _GLIBCXX_HAVE_TLS +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup mutexes + * @{ + */ + +#ifdef _GLIBCXX_HAS_GTHREADS + + // Common base class for std::recursive_mutex and std::recursive_timed_mutex + class __recursive_mutex_base + { + protected: + typedef __gthread_recursive_mutex_t __native_type; + + __recursive_mutex_base(const __recursive_mutex_base&) = delete; + __recursive_mutex_base& operator=(const __recursive_mutex_base&) = delete; + +#ifdef __GTHREAD_RECURSIVE_MUTEX_INIT + __native_type _M_mutex = __GTHREAD_RECURSIVE_MUTEX_INIT; + + __recursive_mutex_base() = default; +#else + __native_type _M_mutex; + + __recursive_mutex_base() + { + // XXX EAGAIN, ENOMEM, EPERM, EBUSY(may), EINVAL(may) + __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION(&_M_mutex); + } + + ~__recursive_mutex_base() + { __gthread_recursive_mutex_destroy(&_M_mutex); } +#endif + }; + + /// The standard recursive mutex type. + class recursive_mutex : private __recursive_mutex_base + { + public: + typedef __native_type* native_handle_type; + + recursive_mutex() = default; + ~recursive_mutex() = default; + + recursive_mutex(const recursive_mutex&) = delete; + recursive_mutex& operator=(const recursive_mutex&) = delete; + + void + lock() + { + int __e = __gthread_recursive_mutex_lock(&_M_mutex); + + // EINVAL, EAGAIN, EBUSY, EINVAL, EDEADLK(may) + if (__e) + __throw_system_error(__e); + } + + bool + try_lock() noexcept + { + // XXX EINVAL, EAGAIN, EBUSY + return !__gthread_recursive_mutex_trylock(&_M_mutex); + } + + void + unlock() + { + // XXX EINVAL, EAGAIN, EBUSY + __gthread_recursive_mutex_unlock(&_M_mutex); + } + + native_handle_type + native_handle() noexcept + { return &_M_mutex; } + }; + +#if _GTHREAD_USE_MUTEX_TIMEDLOCK + template + class __timed_mutex_impl + { + protected: + template + bool + _M_try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { +#if _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK + using __clock = chrono::steady_clock; +#else + using __clock = chrono::system_clock; +#endif + + auto __rt = chrono::duration_cast<__clock::duration>(__rtime); + if (ratio_greater<__clock::period, _Period>()) + ++__rt; + return _M_try_lock_until(__clock::now() + __rt); + } + + template + bool + _M_try_lock_until(const chrono::time_point& __atime) + { + auto __s = chrono::time_point_cast(__atime); + auto __ns = chrono::duration_cast(__atime - __s); + + __gthread_time_t __ts = { + static_cast(__s.time_since_epoch().count()), + static_cast(__ns.count()) + }; + + return static_cast<_Derived*>(this)->_M_timedlock(__ts); + } + +#ifdef _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK + template + bool + _M_try_lock_until(const chrono::time_point& __atime) + { + auto __s = chrono::time_point_cast(__atime); + auto __ns = chrono::duration_cast(__atime - __s); + + __gthread_time_t __ts = { + static_cast(__s.time_since_epoch().count()), + static_cast(__ns.count()) + }; + + return static_cast<_Derived*>(this)->_M_clocklock(CLOCK_MONOTONIC, + __ts); + } +#endif + + template + bool + _M_try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { +#if __cplusplus > 201703L + static_assert(chrono::is_clock_v<_Clock>); +#endif + // The user-supplied clock may not tick at the same rate as + // steady_clock, so we must loop in order to guarantee that + // the timeout has expired before returning false. + auto __now = _Clock::now(); + do { + auto __rtime = __atime - __now; + if (_M_try_lock_for(__rtime)) + return true; + __now = _Clock::now(); + } while (__atime > __now); + return false; + } + }; + + /// The standard timed mutex type. + class timed_mutex + : private __mutex_base, public __timed_mutex_impl + { + public: + typedef __native_type* native_handle_type; + + timed_mutex() = default; + ~timed_mutex() = default; + + timed_mutex(const timed_mutex&) = delete; + timed_mutex& operator=(const timed_mutex&) = delete; + + void + lock() + { + int __e = __gthread_mutex_lock(&_M_mutex); + + // EINVAL, EAGAIN, EBUSY, EINVAL, EDEADLK(may) + if (__e) + __throw_system_error(__e); + } + + bool + try_lock() noexcept + { + // XXX EINVAL, EAGAIN, EBUSY + return !__gthread_mutex_trylock(&_M_mutex); + } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { return _M_try_lock_for(__rtime); } + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { return _M_try_lock_until(__atime); } + + void + unlock() + { + // XXX EINVAL, EAGAIN, EBUSY + __gthread_mutex_unlock(&_M_mutex); + } + + native_handle_type + native_handle() noexcept + { return &_M_mutex; } + + private: + friend class __timed_mutex_impl; + + bool + _M_timedlock(const __gthread_time_t& __ts) + { return !__gthread_mutex_timedlock(&_M_mutex, &__ts); } + +#if _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK + bool + _M_clocklock(clockid_t clockid, const __gthread_time_t& __ts) + { return !pthread_mutex_clocklock(&_M_mutex, clockid, &__ts); } +#endif + }; + + /// recursive_timed_mutex + class recursive_timed_mutex + : private __recursive_mutex_base, + public __timed_mutex_impl + { + public: + typedef __native_type* native_handle_type; + + recursive_timed_mutex() = default; + ~recursive_timed_mutex() = default; + + recursive_timed_mutex(const recursive_timed_mutex&) = delete; + recursive_timed_mutex& operator=(const recursive_timed_mutex&) = delete; + + void + lock() + { + int __e = __gthread_recursive_mutex_lock(&_M_mutex); + + // EINVAL, EAGAIN, EBUSY, EINVAL, EDEADLK(may) + if (__e) + __throw_system_error(__e); + } + + bool + try_lock() noexcept + { + // XXX EINVAL, EAGAIN, EBUSY + return !__gthread_recursive_mutex_trylock(&_M_mutex); + } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { return _M_try_lock_for(__rtime); } + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { return _M_try_lock_until(__atime); } + + void + unlock() + { + // XXX EINVAL, EAGAIN, EBUSY + __gthread_recursive_mutex_unlock(&_M_mutex); + } + + native_handle_type + native_handle() noexcept + { return &_M_mutex; } + + private: + friend class __timed_mutex_impl; + + bool + _M_timedlock(const __gthread_time_t& __ts) + { return !__gthread_recursive_mutex_timedlock(&_M_mutex, &__ts); } + +#ifdef _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK + bool + _M_clocklock(clockid_t clockid, const __gthread_time_t& __ts) + { return !pthread_mutex_clocklock(&_M_mutex, clockid, &__ts); } +#endif + }; + +#else // !_GTHREAD_USE_MUTEX_TIMEDLOCK + + /// timed_mutex + class timed_mutex + { + mutex _M_mut; + condition_variable _M_cv; + bool _M_locked = false; + + public: + + timed_mutex() = default; + ~timed_mutex() { __glibcxx_assert( !_M_locked ); } + + timed_mutex(const timed_mutex&) = delete; + timed_mutex& operator=(const timed_mutex&) = delete; + + void + lock() + { + unique_lock __lk(_M_mut); + _M_cv.wait(__lk, [&]{ return !_M_locked; }); + _M_locked = true; + } + + bool + try_lock() + { + lock_guard __lk(_M_mut); + if (_M_locked) + return false; + _M_locked = true; + return true; + } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { + unique_lock __lk(_M_mut); + if (!_M_cv.wait_for(__lk, __rtime, [&]{ return !_M_locked; })) + return false; + _M_locked = true; + return true; + } + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { + unique_lock __lk(_M_mut); + if (!_M_cv.wait_until(__lk, __atime, [&]{ return !_M_locked; })) + return false; + _M_locked = true; + return true; + } + + void + unlock() + { + lock_guard __lk(_M_mut); + __glibcxx_assert( _M_locked ); + _M_locked = false; + _M_cv.notify_one(); + } + }; + + /// recursive_timed_mutex + class recursive_timed_mutex + { + mutex _M_mut; + condition_variable _M_cv; + thread::id _M_owner; + unsigned _M_count = 0; + + // Predicate type that tests whether the current thread can lock a mutex. + struct _Can_lock + { + // Returns true if the mutex is unlocked or is locked by _M_caller. + bool + operator()() const noexcept + { return _M_mx->_M_count == 0 || _M_mx->_M_owner == _M_caller; } + + const recursive_timed_mutex* _M_mx; + thread::id _M_caller; + }; + + public: + + recursive_timed_mutex() = default; + ~recursive_timed_mutex() { __glibcxx_assert( _M_count == 0 ); } + + recursive_timed_mutex(const recursive_timed_mutex&) = delete; + recursive_timed_mutex& operator=(const recursive_timed_mutex&) = delete; + + void + lock() + { + auto __id = this_thread::get_id(); + _Can_lock __can_lock{this, __id}; + unique_lock __lk(_M_mut); + _M_cv.wait(__lk, __can_lock); + if (_M_count == -1u) + __throw_system_error(EAGAIN); // [thread.timedmutex.recursive]/3 + _M_owner = __id; + ++_M_count; + } + + bool + try_lock() + { + auto __id = this_thread::get_id(); + _Can_lock __can_lock{this, __id}; + lock_guard __lk(_M_mut); + if (!__can_lock()) + return false; + if (_M_count == -1u) + return false; + _M_owner = __id; + ++_M_count; + return true; + } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { + auto __id = this_thread::get_id(); + _Can_lock __can_lock{this, __id}; + unique_lock __lk(_M_mut); + if (!_M_cv.wait_for(__lk, __rtime, __can_lock)) + return false; + if (_M_count == -1u) + return false; + _M_owner = __id; + ++_M_count; + return true; + } + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { + auto __id = this_thread::get_id(); + _Can_lock __can_lock{this, __id}; + unique_lock __lk(_M_mut); + if (!_M_cv.wait_until(__lk, __atime, __can_lock)) + return false; + if (_M_count == -1u) + return false; + _M_owner = __id; + ++_M_count; + return true; + } + + void + unlock() + { + lock_guard __lk(_M_mut); + __glibcxx_assert( _M_owner == this_thread::get_id() ); + __glibcxx_assert( _M_count > 0 ); + if (--_M_count == 0) + { + _M_owner = {}; + _M_cv.notify_one(); + } + } + }; + +#endif +#endif // _GLIBCXX_HAS_GTHREADS + + /// @cond undocumented + template + inline unique_lock<_Lock> + __try_to_lock(_Lock& __l) + { return unique_lock<_Lock>{__l, try_to_lock}; } + + template + struct __try_lock_impl + { + template + static void + __do_try_lock(tuple<_Lock&...>& __locks, int& __idx) + { + __idx = _Idx; + auto __lock = std::__try_to_lock(std::get<_Idx>(__locks)); + if (__lock.owns_lock()) + { + constexpr bool __cont = _Idx + 2 < sizeof...(_Lock); + using __try_locker = __try_lock_impl<_Idx + 1, __cont>; + __try_locker::__do_try_lock(__locks, __idx); + if (__idx == -1) + __lock.release(); + } + } + }; + + template + struct __try_lock_impl<_Idx, false> + { + template + static void + __do_try_lock(tuple<_Lock&...>& __locks, int& __idx) + { + __idx = _Idx; + auto __lock = std::__try_to_lock(std::get<_Idx>(__locks)); + if (__lock.owns_lock()) + { + __idx = -1; + __lock.release(); + } + } + }; + /// @endcond + + /** @brief Generic try_lock. + * @param __l1 Meets Lockable requirements (try_lock() may throw). + * @param __l2 Meets Lockable requirements (try_lock() may throw). + * @param __l3 Meets Lockable requirements (try_lock() may throw). + * @return Returns -1 if all try_lock() calls return true. Otherwise returns + * a 0-based index corresponding to the argument that returned false. + * @post Either all arguments are locked, or none will be. + * + * Sequentially calls try_lock() on each argument. + */ + template + int + try_lock(_Lock1& __l1, _Lock2& __l2, _Lock3&... __l3) + { + int __idx; + auto __locks = std::tie(__l1, __l2, __l3...); + __try_lock_impl<0>::__do_try_lock(__locks, __idx); + return __idx; + } + + /** @brief Generic lock. + * @param __l1 Meets Lockable requirements (try_lock() may throw). + * @param __l2 Meets Lockable requirements (try_lock() may throw). + * @param __l3 Meets Lockable requirements (try_lock() may throw). + * @throw An exception thrown by an argument's lock() or try_lock() member. + * @post All arguments are locked. + * + * All arguments are locked via a sequence of calls to lock(), try_lock() + * and unlock(). If the call exits via an exception any locks that were + * obtained will be released. + */ + template + void + lock(_L1& __l1, _L2& __l2, _L3&... __l3) + { + while (true) + { + using __try_locker = __try_lock_impl<0, sizeof...(_L3) != 0>; + unique_lock<_L1> __first(__l1); + int __idx; + auto __locks = std::tie(__l2, __l3...); + __try_locker::__do_try_lock(__locks, __idx); + if (__idx == -1) + { + __first.release(); + return; + } + } + } + +#if __cplusplus >= 201703L +#define __cpp_lib_scoped_lock 201703 + /** @brief A scoped lock type for multiple lockable objects. + * + * A scoped_lock controls mutex ownership within a scope, releasing + * ownership in the destructor. + */ + template + class scoped_lock + { + public: + explicit scoped_lock(_MutexTypes&... __m) : _M_devices(std::tie(__m...)) + { std::lock(__m...); } + + explicit scoped_lock(adopt_lock_t, _MutexTypes&... __m) noexcept + : _M_devices(std::tie(__m...)) + { } // calling thread owns mutex + + ~scoped_lock() + { std::apply([](auto&... __m) { (__m.unlock(), ...); }, _M_devices); } + + scoped_lock(const scoped_lock&) = delete; + scoped_lock& operator=(const scoped_lock&) = delete; + + private: + tuple<_MutexTypes&...> _M_devices; + }; + + template<> + class scoped_lock<> + { + public: + explicit scoped_lock() = default; + explicit scoped_lock(adopt_lock_t) noexcept { } + ~scoped_lock() = default; + + scoped_lock(const scoped_lock&) = delete; + scoped_lock& operator=(const scoped_lock&) = delete; + }; + + template + class scoped_lock<_Mutex> + { + public: + using mutex_type = _Mutex; + + explicit scoped_lock(mutex_type& __m) : _M_device(__m) + { _M_device.lock(); } + + explicit scoped_lock(adopt_lock_t, mutex_type& __m) noexcept + : _M_device(__m) + { } // calling thread owns mutex + + ~scoped_lock() + { _M_device.unlock(); } + + scoped_lock(const scoped_lock&) = delete; + scoped_lock& operator=(const scoped_lock&) = delete; + + private: + mutex_type& _M_device; + }; +#endif // C++17 + +#ifdef _GLIBCXX_HAS_GTHREADS + /// Flag type used by std::call_once + struct once_flag + { + private: + typedef __gthread_once_t __native_type; + __native_type _M_once = __GTHREAD_ONCE_INIT; + + public: + /// Constructor + constexpr once_flag() noexcept = default; + + /// Deleted copy constructor + once_flag(const once_flag&) = delete; + /// Deleted assignment operator + once_flag& operator=(const once_flag&) = delete; + + template + friend void + call_once(once_flag& __once, _Callable&& __f, _Args&&... __args); + }; + + /// @cond undocumented +#ifdef _GLIBCXX_HAVE_TLS + extern __thread void* __once_callable; + extern __thread void (*__once_call)(); +#else + extern function __once_functor; + + extern void + __set_once_functor_lock_ptr(unique_lock*); + + extern mutex& + __get_once_mutex(); +#endif + + extern "C" void __once_proxy(void); + /// @endcond + + /// Invoke a callable and synchronize with other calls using the same flag + template + void + call_once(once_flag& __once, _Callable&& __f, _Args&&... __args) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2442. call_once() shouldn't DECAY_COPY() + auto __callable = [&] { + std::__invoke(std::forward<_Callable>(__f), + std::forward<_Args>(__args)...); + }; +#ifdef _GLIBCXX_HAVE_TLS + __once_callable = std::__addressof(__callable); + __once_call = []{ (*(decltype(__callable)*)__once_callable)(); }; +#else + unique_lock __functor_lock(__get_once_mutex()); + __once_functor = __callable; + __set_once_functor_lock_ptr(&__functor_lock); +#endif + + int __e = __gthread_once(&__once._M_once, &__once_proxy); + +#ifndef _GLIBCXX_HAVE_TLS + if (__functor_lock) + __set_once_functor_lock_ptr(0); +#endif + +#ifdef __clang_analyzer__ + // PR libstdc++/82481 + __once_callable = nullptr; + __once_call = nullptr; +#endif + + if (__e) + __throw_system_error(__e); + } +#endif // _GLIBCXX_HAS_GTHREADS + + // @} group mutexes +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif // _GLIBCXX_MUTEX diff --git a/resources/sources/avr-libstdcpp/include/new b/resources/sources/avr-libstdcpp/include/new new file mode 100644 index 000000000..06e43dc6f --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/new @@ -0,0 +1,193 @@ +// The -*- C++ -*- dynamic memory management header. + +// Copyright (C) 1994-2020 Free Software Foundation, Inc. + +// This file is part of GCC. +// +// GCC is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; either version 3, or (at your option) +// any later version. +// +// GCC is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file new + * This is a Standard C++ Library header. + * + * The header @c new defines several functions to manage dynamic memory and + * handling memory allocation errors; see + * https://gcc.gnu.org/onlinedocs/libstdc++/manual/dynamic_memory.html + * for more. + */ + +#ifndef _NEW +#define _NEW + +#pragma GCC system_header + +#include +#include + +#pragma GCC visibility push(default) + +extern "C++" { + +namespace std +{ +#if __cpp_aligned_new + enum class align_val_t: size_t {}; +#endif + + struct nothrow_t + { +#if __cplusplus >= 201103L + explicit nothrow_t() = default; +#endif + }; + + extern const nothrow_t nothrow; + + /** If you write your own error handler to be called by @c new, it must + * be of this type. */ + typedef void (*new_handler)(); + + /// Takes a replacement handler as the argument, returns the + /// previous handler. + new_handler set_new_handler(new_handler) throw(); + +#if __cplusplus >= 201103L + /// Return the current new handler. + new_handler get_new_handler() noexcept; +#endif +} // namespace std + +//@{ +/** These are replaceable signatures: + * - normal single new and delete (no arguments, throw @c bad_alloc on error) + * - normal array new and delete (same) + * - @c nothrow single new and delete (take a @c nothrow argument, return + * @c NULL on error) + * - @c nothrow array new and delete (same) + * + * Placement new and delete signatures (take a memory address argument, + * does nothing) may not be replaced by a user's program. +*/ +_GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc) + __attribute__((__externally_visible__)); +_GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc) + __attribute__((__externally_visible__)); +void operator delete(void*) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +#if __cpp_sized_deallocation +void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void operator delete[](void*, std::size_t) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +#endif +_GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__, __malloc__)); +_GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__, __malloc__)); +void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT + __attribute__((__externally_visible__)); +#if 0 // __cpp_aligned_new +_GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t) + __attribute__((__externally_visible__)); +_GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __malloc__)); +void operator delete(void*, std::align_val_t) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__)); +void operator delete(void*, std::align_val_t, const std::nothrow_t&) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__)); +_GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t) + __attribute__((__externally_visible__)); +_GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t, const std::nothrow_t&) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __malloc__)); +void operator delete[](void*, std::align_val_t) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__)); +void operator delete[](void*, std::align_val_t, const std::nothrow_t&) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__)); +#if __cpp_sized_deallocation +void operator delete(void*, std::size_t, std::align_val_t) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__)); +void operator delete[](void*, std::size_t, std::align_val_t) + _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__)); +#endif // __cpp_sized_deallocation +#endif // __cpp_aligned_new + +// Default placement versions of operator new. +_GLIBCXX_NODISCARD inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT +{ return __p; } +_GLIBCXX_NODISCARD inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT +{ return __p; } + +// Default placement versions of operator delete. +inline void operator delete (void*, void*) _GLIBCXX_USE_NOEXCEPT { } +inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { } +//@} +} // extern "C++" + +#if __cplusplus >= 201703L +#ifdef _GLIBCXX_HAVE_BUILTIN_LAUNDER +namespace std +{ +#define __cpp_lib_launder 201606 + /// Pointer optimization barrier [ptr.launder] + template + [[nodiscard]] constexpr _Tp* + launder(_Tp* __p) noexcept + { return __builtin_launder(__p); } + + // The program is ill-formed if T is a function type or + // (possibly cv-qualified) void. + + template + void launder(_Ret (*)(_Args...) _GLIBCXX_NOEXCEPT_QUAL) = delete; + template + void launder(_Ret (*)(_Args......) _GLIBCXX_NOEXCEPT_QUAL) = delete; + + void launder(void*) = delete; + void launder(const void*) = delete; + void launder(volatile void*) = delete; + void launder(const volatile void*) = delete; +} +#endif // _GLIBCXX_HAVE_BUILTIN_LAUNDER +#endif // C++17 + +#if __cplusplus > 201703L +namespace std +{ + /// Tag type used to declare a class-specific operator delete that can + /// invoke the destructor before deallocating the memory. + struct destroying_delete_t + { + explicit destroying_delete_t() = default; + }; + /// Tag variable of type destroying_delete_t. + inline constexpr destroying_delete_t destroying_delete{}; +} +// Only define the feature test macro if the compiler supports the feature: +#if __cpp_impl_destroying_delete +# define __cpp_lib_destroying_delete 201806L +#endif +#endif // C++20 + +#pragma GCC visibility pop + +#endif diff --git a/resources/sources/avr-libstdcpp/include/numbers b/resources/sources/avr-libstdcpp/include/numbers new file mode 100644 index 000000000..7e51851bd --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/numbers @@ -0,0 +1,208 @@ +// -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/numbers + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_NUMBERS +#define _GLIBCXX_NUMBERS 1 + +#pragma GCC system_header + +#if __cplusplus > 201703L + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +/** @defgroup math_constants Mathematical constants + * @ingroup numerics + * @{ + */ + +/// Namespace for mathematical constants +namespace numbers +{ +#define __cpp_lib_math_constants 201907L + + /// @cond undoc + template + using _Enable_if_floating = enable_if_t, _Tp>; + /// @endcond + + /// e + template + inline constexpr _Tp e_v + = _Enable_if_floating<_Tp>(2.718281828459045235360287471352662498L); + + /// log_2 e + template + inline constexpr _Tp log2e_v + = _Enable_if_floating<_Tp>(1.442695040888963407359924681001892137L); + + /// log_10 e + template + inline constexpr _Tp log10e_v + = _Enable_if_floating<_Tp>(0.434294481903251827651128918916605082L); + + /// pi + template + inline constexpr _Tp pi_v + = _Enable_if_floating<_Tp>(3.141592653589793238462643383279502884L); + + /// 1/pi + template + inline constexpr _Tp inv_pi_v + = _Enable_if_floating<_Tp>(0.318309886183790671537767526745028724L); + + /// 1/sqrt(pi) + template + inline constexpr _Tp inv_sqrtpi_v + = _Enable_if_floating<_Tp>(0.564189583547756286948079451560772586L); + + /// log_e 2 + template + inline constexpr _Tp ln2_v + = _Enable_if_floating<_Tp>(0.693147180559945309417232121458176568L); + + /// log_e 10 + template + inline constexpr _Tp ln10_v + = _Enable_if_floating<_Tp>(2.302585092994045684017991454684364208L); + + /// sqrt(2) + template + inline constexpr _Tp sqrt2_v + = _Enable_if_floating<_Tp>(1.414213562373095048801688724209698079L); + + /// sqrt(3) + template + inline constexpr _Tp sqrt3_v + = _Enable_if_floating<_Tp>(1.732050807568877293527446341505872367L); + + /// 1/sqrt(3) + template + inline constexpr _Tp inv_sqrt3_v + = _Enable_if_floating<_Tp>(0.577350269189625764509148780501957456L); + + /// The Euler-Mascheroni constant + template + inline constexpr _Tp egamma_v + = _Enable_if_floating<_Tp>(0.577215664901532860606512090082402431L); + + /// The golden ratio, (1+sqrt(5))/2 + template + inline constexpr _Tp phi_v + = _Enable_if_floating<_Tp>(1.618033988749894848204586834365638118L); + + inline constexpr double e = e_v; + inline constexpr double log2e = log2e_v; + inline constexpr double log10e = log10e_v; + inline constexpr double pi = pi_v; + inline constexpr double inv_pi = inv_pi_v; + inline constexpr double inv_sqrtpi = inv_sqrtpi_v; + inline constexpr double ln2 = ln2_v; + inline constexpr double ln10 = ln10_v; + inline constexpr double sqrt2 = sqrt2_v; + inline constexpr double sqrt3 = sqrt3_v; + inline constexpr double inv_sqrt3 = inv_sqrt3_v; + inline constexpr double egamma = egamma_v; + inline constexpr double phi = phi_v; + +#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) + template<> + inline constexpr __float128 e_v<__float128> + = 2.718281828459045235360287471352662498Q; + + /// log_2 e + template<> + inline constexpr __float128 log2e_v<__float128> + = 1.442695040888963407359924681001892137Q; + + /// log_10 e + template<> + inline constexpr __float128 log10e_v<__float128> + = 0.434294481903251827651128918916605082Q; + + /// pi + template<> + inline constexpr __float128 pi_v<__float128> + = 3.141592653589793238462643383279502884Q; + + /// 1/pi + template<> + inline constexpr __float128 inv_pi_v<__float128> + = 0.318309886183790671537767526745028724Q; + + /// 1/sqrt(pi) + template<> + inline constexpr __float128 inv_sqrtpi_v<__float128> + = 0.564189583547756286948079451560772586Q; + + /// log_e 2 + template<> + inline constexpr __float128 ln2_v<__float128> + = 0.693147180559945309417232121458176568Q; + + /// log_e 10 + template<> + inline constexpr __float128 ln10_v<__float128> + = 2.302585092994045684017991454684364208Q; + + /// sqrt(2) + template<> + inline constexpr __float128 sqrt2_v<__float128> + = 1.414213562373095048801688724209698079Q; + + /// sqrt(3) + template<> + inline constexpr __float128 sqrt3_v<__float128> + = 1.732050807568877293527446341505872367Q; + + /// 1/sqrt(3) + template<> + inline constexpr __float128 inv_sqrt3_v<__float128> + = 0.577350269189625764509148780501957456Q; + + /// The Euler-Mascheroni constant + template<> + inline constexpr __float128 egamma_v<__float128> + = 0.577215664901532860606512090082402431Q; + + /// The golden ratio, (1+sqrt(5))/2 + template<> + inline constexpr __float128 phi_v<__float128> + = 1.618033988749894848204586834365638118Q; +#endif // USE_FLOAT128 + +} // namespace numbers +/// @} +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++20 +#endif // _GLIBCXX_NUMBERS diff --git a/resources/sources/avr-libstdcpp/include/numeric b/resources/sources/avr-libstdcpp/include/numeric new file mode 100644 index 000000000..7793c9db3 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/numeric @@ -0,0 +1,699 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/numeric + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_NUMERIC +#define _GLIBCXX_NUMERIC 1 + +#pragma GCC system_header + +#include +#include +#include +#include + +/** + * @defgroup numerics Numerics + * + * Components for performing numeric operations. Includes support for + * complex number types, random number generation, numeric (n-at-a-time) + * arrays, generalized numeric algorithms, and mathematical special functions. + */ + +#if __cplusplus >= 201402L +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +namespace __detail +{ + // std::abs is not constexpr, doesn't support unsigned integers, + // and std::abs(std::numeric_limits::min()) is undefined. + template + constexpr _Up + __absu(_Tp __val) + { + static_assert(is_unsigned<_Up>::value, "result type must be unsigned"); + static_assert(sizeof(_Up) >= sizeof(_Tp), + "result type must be at least as wide as the input type"); + return __val < 0 ? -(_Up)__val : (_Up)__val; + } + + template void __absu(bool) = delete; + + // GCD implementation + template + constexpr _Tp + __gcd(_Tp __m, _Tp __n) + { + static_assert(is_unsigned<_Tp>::value, "type must be unsigned"); + return __m == 0 ? __n + : __n == 0 ? __m + : __detail::__gcd(__n, _Tp(__m % __n)); + } + + // LCM implementation + template + constexpr _Tp + __lcm(_Tp __m, _Tp __n) + { + return (__m != 0 && __n != 0) + ? (__m / __detail::__gcd(__m, __n)) * __n + : 0; + } +} // namespace __detail + +#if __cplusplus >= 201703L + +#define __cpp_lib_gcd_lcm 201606 +// These were used in drafts of SD-6: +#define __cpp_lib_gcd 201606 +#define __cpp_lib_lcm 201606 + + /// Greatest common divisor + template + constexpr common_type_t<_Mn, _Nn> + gcd(_Mn __m, _Nn __n) noexcept + { + static_assert(is_integral_v<_Mn>, "std::gcd arguments must be integers"); + static_assert(is_integral_v<_Nn>, "std::gcd arguments must be integers"); + static_assert(_Mn(2) != _Mn(1), "std::gcd arguments must not be bool"); + static_assert(_Nn(2) != _Nn(1), "std::gcd arguments must not be bool"); + using _Up = make_unsigned_t>; + return __detail::__gcd(__detail::__absu<_Up>(__m), + __detail::__absu<_Up>(__n)); + } + + /// Least common multiple + template + constexpr common_type_t<_Mn, _Nn> + lcm(_Mn __m, _Nn __n) noexcept + { + static_assert(is_integral_v<_Mn>, "std::lcm arguments must be integers"); + static_assert(is_integral_v<_Nn>, "std::lcm arguments must be integers"); + static_assert(_Mn(2) == 2, "std::lcm arguments must not be bool"); + static_assert(_Nn(2) == 2, "std::lcm arguments must not be bool"); + using _Up = make_unsigned_t>; + return __detail::__lcm(__detail::__absu<_Up>(__m), + __detail::__absu<_Up>(__n)); + } + +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++14 + +#if __cplusplus > 201703L +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + // midpoint +# define __cpp_lib_interpolate 201902L + + template + constexpr + enable_if_t<__and_v, is_same, _Tp>, + __not_>>, + _Tp> + midpoint(_Tp __a, _Tp __b) noexcept + { + if constexpr (is_integral_v<_Tp>) + { + using _Up = make_unsigned_t<_Tp>; + + int __k = 1; + _Up __m = __a; + _Up __M = __b; + if (__a > __b) + { + __k = -1; + __m = __b; + __M = __a; + } + return __a + __k * _Tp(_Up(__M - __m) / 2); + } + else // is_floating + { + constexpr _Tp __lo = numeric_limits<_Tp>::min() * 2; + constexpr _Tp __hi = numeric_limits<_Tp>::max() / 2; + const _Tp __abs_a = __a < 0 ? -__a : __a; + const _Tp __abs_b = __b < 0 ? -__b : __b; + if (__abs_a <= __hi && __abs_b <= __hi) [[likely]] + return (__a + __b) / 2; // always correctly rounded + if (__abs_a < __lo) // not safe to halve __a + return __a + __b/2; + if (__abs_b < __lo) // not safe to halve __b + return __a/2 + __b; + return __a/2 + __b/2; // otherwise correctly rounded + } + } + + template + constexpr enable_if_t, _Tp*> + midpoint(_Tp* __a, _Tp* __b) noexcept + { + static_assert( sizeof(_Tp) != 0, "type must be complete" ); + return __a + (__b - __a) / 2; + } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++20 + +#if __cplusplus > 201402L +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#if __cplusplus > 201703L +#define __cpp_lib_constexpr_numeric 201911L +#endif + + /// @addtogroup numeric_ops + /// @{ + + /** + * @brief Calculate reduction of values in a range. + * + * @param __first Start of range. + * @param __last End of range. + * @param __init Starting value to add other values to. + * @param __binary_op A binary function object. + * @return The final sum. + * + * Reduce the values in the range `[first,last)` using a binary operation. + * The initial value is `init`. The values are not necessarily processed + * in order. + * + * This algorithm is similar to `std::accumulate` but is not required to + * perform the operations in order from first to last. For operations + * that are commutative and associative the result will be the same as + * for `std::accumulate`, but for other operations (such as floating point + * arithmetic) the result can be different. + */ + template + _GLIBCXX20_CONSTEXPR + _Tp + reduce(_InputIterator __first, _InputIterator __last, _Tp __init, + _BinaryOperation __binary_op) + { + using value_type = typename iterator_traits<_InputIterator>::value_type; + static_assert(is_invocable_r_v<_Tp, _BinaryOperation&, _Tp&, _Tp&>); + static_assert(is_convertible_v); + if constexpr (__is_random_access_iter<_InputIterator>::value) + { + while ((__last - __first) >= 4) + { + _Tp __v1 = __binary_op(__first[0], __first[1]); + _Tp __v2 = __binary_op(__first[2], __first[3]); + _Tp __v3 = __binary_op(__v1, __v2); + __init = __binary_op(__init, __v3); + __first += 4; + } + } + for (; __first != __last; ++__first) + __init = __binary_op(__init, *__first); + return __init; + } + + /** + * @brief Calculate reduction of values in a range. + * + * @param __first Start of range. + * @param __last End of range. + * @param __init Starting value to add other values to. + * @return The final sum. + * + * Reduce the values in the range `[first,last)` using addition. + * Equivalent to calling `std::reduce(first, last, init, std::plus<>())`. + */ + template + _GLIBCXX20_CONSTEXPR + inline _Tp + reduce(_InputIterator __first, _InputIterator __last, _Tp __init) + { return std::reduce(__first, __last, std::move(__init), plus<>()); } + + /** + * @brief Calculate reduction of values in a range. + * + * @param __first Start of range. + * @param __last End of range. + * @return The final sum. + * + * Reduce the values in the range `[first,last)` using addition, with + * an initial value of `T{}`, where `T` is the iterator's value type. + * Equivalent to calling `std::reduce(first, last, T{}, std::plus<>())`. + */ + template + _GLIBCXX20_CONSTEXPR + inline typename iterator_traits<_InputIterator>::value_type + reduce(_InputIterator __first, _InputIterator __last) + { + using value_type = typename iterator_traits<_InputIterator>::value_type; + return std::reduce(__first, __last, value_type{}, plus<>()); + } + + /** + * @brief Combine elements from two ranges and reduce + * + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __init Starting value to add other values to. + * @param __binary_op1 The function used to perform reduction. + * @param __binary_op2 The function used to combine values from the ranges. + * @return The final sum. + * + * Call `binary_op2(first1[n],first2[n])` for each `n` in `[0,last1-first1)` + * and then use `binary_op1` to reduce the values returned by `binary_op2` + * to a single value of type `T`. + * + * The range beginning at `first2` must contain at least `last1-first1` + * elements. + */ + template + _GLIBCXX20_CONSTEXPR + _Tp + transform_reduce(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _Tp __init, + _BinaryOperation1 __binary_op1, + _BinaryOperation2 __binary_op2) + { + if constexpr (__and_v<__is_random_access_iter<_InputIterator1>, + __is_random_access_iter<_InputIterator2>>) + { + while ((__last1 - __first1) >= 4) + { + _Tp __v1 = __binary_op1(__binary_op2(__first1[0], __first2[0]), + __binary_op2(__first1[1], __first2[1])); + _Tp __v2 = __binary_op1(__binary_op2(__first1[2], __first2[2]), + __binary_op2(__first1[3], __first2[3])); + _Tp __v3 = __binary_op1(__v1, __v2); + __init = __binary_op1(__init, __v3); + __first1 += 4; + __first2 += 4; + } + } + for (; __first1 != __last1; ++__first1, (void) ++__first2) + __init = __binary_op1(__init, __binary_op2(*__first1, *__first2)); + return __init; + } + + /** + * @brief Combine elements from two ranges and reduce + * + * @param __first1 Start of first range. + * @param __last1 End of first range. + * @param __first2 Start of second range. + * @param __init Starting value to add other values to. + * @return The final sum. + * + * Call `first1[n]*first2[n]` for each `n` in `[0,last1-first1)` and then + * use addition to sum those products to a single value of type `T`. + * + * The range beginning at `first2` must contain at least `last1-first1` + * elements. + */ + template + _GLIBCXX20_CONSTEXPR + inline _Tp + transform_reduce(_InputIterator1 __first1, _InputIterator1 __last1, + _InputIterator2 __first2, _Tp __init) + { + return std::transform_reduce(__first1, __last1, __first2, + std::move(__init), + plus<>(), multiplies<>()); + } + + /** + * @brief Transform the elements of a range and reduce + * + * @param __first Start of range. + * @param __last End of range. + * @param __init Starting value to add other values to. + * @param __binary_op The function used to perform reduction. + * @param __unary_op The function used to transform values from the range. + * @return The final sum. + * + * Call `unary_op(first[n])` for each `n` in `[0,last-first)` and then + * use `binary_op` to reduce the values returned by `unary_op` + * to a single value of type `T`. + */ + template + _GLIBCXX20_CONSTEXPR + _Tp + transform_reduce(_InputIterator __first, _InputIterator __last, _Tp __init, + _BinaryOperation __binary_op, _UnaryOperation __unary_op) + { + if constexpr (__is_random_access_iter<_InputIterator>::value) + { + while ((__last - __first) >= 4) + { + _Tp __v1 = __binary_op(__unary_op(__first[0]), + __unary_op(__first[1])); + _Tp __v2 = __binary_op(__unary_op(__first[2]), + __unary_op(__first[3])); + _Tp __v3 = __binary_op(__v1, __v2); + __init = __binary_op(__init, __v3); + __first += 4; + } + } + for (; __first != __last; ++__first) + __init = __binary_op(__init, __unary_op(*__first)); + return __init; + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __init Initial value. + * @param __binary_op Function to perform summation. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements (and the initial value), + * using `binary_op` for summation. + * + * This function generates an "exclusive" scan, meaning the Nth element + * of the output range is the sum of the first N-1 input elements, + * so the Nth input element is not included. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + exclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _Tp __init, + _BinaryOperation __binary_op) + { + while (__first != __last) + { + auto __v = __init; + __init = __binary_op(__init, *__first); + ++__first; + *__result++ = std::move(__v); + } + return __result; + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __init Initial value. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements (and the initial value), + * using `std::plus<>` for summation. + * + * This function generates an "exclusive" scan, meaning the Nth element + * of the output range is the sum of the first N-1 input elements, + * so the Nth input element is not included. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + exclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _Tp __init) + { + return std::exclusive_scan(__first, __last, __result, std::move(__init), + plus<>()); + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __binary_op Function to perform summation. + * @param __init Initial value. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements (and the initial value), + * using `binary_op` for summation. + * + * This function generates an "inclusive" scan, meaning the Nth element + * of the output range is the sum of the first N input elements, + * so the Nth input element is included. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + inclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _BinaryOperation __binary_op, + _Tp __init) + { + for (; __first != __last; ++__first) + *__result++ = __init = __binary_op(__init, *__first); + return __result; + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __binary_op Function to perform summation. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements, using `binary_op` for summation. + * + * This function generates an "inclusive" scan, meaning the Nth element + * of the output range is the sum of the first N input elements, + * so the Nth input element is included. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + inclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _BinaryOperation __binary_op) + { + if (__first != __last) + { + auto __init = *__first; + *__result++ = __init; + ++__first; + if (__first != __last) + __result = std::inclusive_scan(__first, __last, __result, + __binary_op, std::move(__init)); + } + return __result; + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements, using `std::plus<>` for summation. + * + * This function generates an "inclusive" scan, meaning the Nth element + * of the output range is the sum of the first N input elements, + * so the Nth input element is included. + */ + template + _GLIBCXX20_CONSTEXPR + inline _OutputIterator + inclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result) + { return std::inclusive_scan(__first, __last, __result, plus<>()); } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __init Initial value. + * @param __binary_op Function to perform summation. + * @param __unary_op Function to transform elements of the input range. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements (and the initial value), + * using `__unary_op` to transform the input elements + * and using `__binary_op` for summation. + * + * This function generates an "exclusive" scan, meaning the Nth element + * of the output range is the sum of the first N-1 input elements, + * so the Nth input element is not included. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + transform_exclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, _Tp __init, + _BinaryOperation __binary_op, + _UnaryOperation __unary_op) + { + while (__first != __last) + { + auto __v = __init; + __init = __binary_op(__init, __unary_op(*__first)); + ++__first; + *__result++ = std::move(__v); + } + return __result; + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __binary_op Function to perform summation. + * @param __unary_op Function to transform elements of the input range. + * @param __init Initial value. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements (and the initial value), + * using `__unary_op` to transform the input elements + * and using `__binary_op` for summation. + * + * This function generates an "inclusive" scan, meaning the Nth element + * of the output range is the sum of the first N input elements, + * so the Nth input element is included. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + transform_inclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, + _BinaryOperation __binary_op, + _UnaryOperation __unary_op, + _Tp __init) + { + for (; __first != __last; ++__first) + *__result++ = __init = __binary_op(__init, __unary_op(*__first)); + return __result; + } + + /** @brief Output the cumulative sum of one range to a second range + * + * @param __first Start of input range. + * @param __last End of input range. + * @param __result Start of output range. + * @param __binary_op Function to perform summation. + * @param __unary_op Function to transform elements of the input range. + * @return The end of the output range. + * + * Write the cumulative sum (aka prefix sum, aka scan) of the input range + * to the output range. Each element of the output range contains the + * running total of all earlier elements, + * using `__unary_op` to transform the input elements + * and using `__binary_op` for summation. + * + * This function generates an "inclusive" scan, meaning the Nth element + * of the output range is the sum of the first N input elements, + * so the Nth input element is included. + */ + template + _GLIBCXX20_CONSTEXPR + _OutputIterator + transform_inclusive_scan(_InputIterator __first, _InputIterator __last, + _OutputIterator __result, + _BinaryOperation __binary_op, + _UnaryOperation __unary_op) + { + if (__first != __last) + { + auto __init = __unary_op(*__first); + *__result++ = __init; + ++__first; + if (__first != __last) + __result = std::transform_inclusive_scan(__first, __last, __result, + __binary_op, __unary_op, + std::move(__init)); + } + return __result; + } + + // @} group numeric_ops + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++17 + +#endif /* _GLIBCXX_NUMERIC */ diff --git a/resources/sources/avr-libstdcpp/include/optional b/resources/sources/avr-libstdcpp/include/optional new file mode 100644 index 000000000..6c7701e21 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/optional @@ -0,0 +1,1238 @@ +// -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/optional + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_OPTIONAL +#define _GLIBCXX_OPTIONAL 1 + +#pragma GCC system_header + +#if __cplusplus >= 201703L + +#include +#include +#include +#include +#include +#include +#include +#include +#if __cplusplus > 201703L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup utilities + * @{ + */ + +#define __cpp_lib_optional 201606L + + template + class optional; + + /// Tag type to disengage optional objects. + struct nullopt_t + { + // Do not user-declare default constructor at all for + // optional_value = {} syntax to work. + // nullopt_t() = delete; + + // Used for constructing nullopt. + enum class _Construct { _Token }; + + // Must be constexpr for nullopt_t to be literal. + explicit constexpr nullopt_t(_Construct) { } + }; + + /// Tag to disengage optional objects. + inline constexpr nullopt_t nullopt { nullopt_t::_Construct::_Token }; + + // This class template manages construction/destruction of + // the contained value for a std::optional. + template + struct _Optional_payload_base + { + using _Stored_type = remove_const_t<_Tp>; + + _Optional_payload_base() = default; + ~_Optional_payload_base() = default; + + template + constexpr + _Optional_payload_base(in_place_t __tag, _Args&&... __args) + : _M_payload(__tag, std::forward<_Args>(__args)...), + _M_engaged(true) + { } + + template + constexpr + _Optional_payload_base(std::initializer_list<_Up> __il, + _Args&&... __args) + : _M_payload(__il, std::forward<_Args>(__args)...), + _M_engaged(true) + { } + + // Constructor used by _Optional_base copy constructor when the + // contained value is not trivially copy constructible. + constexpr + _Optional_payload_base(bool __engaged, + const _Optional_payload_base& __other) + { + if (__other._M_engaged) + this->_M_construct(__other._M_get()); + } + + // Constructor used by _Optional_base move constructor when the + // contained value is not trivially move constructible. + constexpr + _Optional_payload_base(bool __engaged, + _Optional_payload_base&& __other) + { + if (__other._M_engaged) + this->_M_construct(std::move(__other._M_get())); + } + + // Copy constructor is only used to when the contained value is + // trivially copy constructible. + _Optional_payload_base(const _Optional_payload_base&) = default; + + // Move constructor is only used to when the contained value is + // trivially copy constructible. + _Optional_payload_base(_Optional_payload_base&&) = default; + + _Optional_payload_base& + operator=(const _Optional_payload_base&) = default; + + _Optional_payload_base& + operator=(_Optional_payload_base&&) = default; + + // used to perform non-trivial copy assignment. + constexpr void + _M_copy_assign(const _Optional_payload_base& __other) + { + if (this->_M_engaged && __other._M_engaged) + this->_M_get() = __other._M_get(); + else + { + if (__other._M_engaged) + this->_M_construct(__other._M_get()); + else + this->_M_reset(); + } + } + + // used to perform non-trivial move assignment. + constexpr void + _M_move_assign(_Optional_payload_base&& __other) + noexcept(__and_v, + is_nothrow_move_assignable<_Tp>>) + { + if (this->_M_engaged && __other._M_engaged) + this->_M_get() = std::move(__other._M_get()); + else + { + if (__other._M_engaged) + this->_M_construct(std::move(__other._M_get())); + else + this->_M_reset(); + } + } + + struct _Empty_byte { }; + + template> + union _Storage + { + constexpr _Storage() noexcept : _M_empty() { } + + template + constexpr + _Storage(in_place_t, _Args&&... __args) + : _M_value(std::forward<_Args>(__args)...) + { } + + template + constexpr + _Storage(std::initializer_list<_Vp> __il, _Args&&... __args) + : _M_value(__il, std::forward<_Args>(__args)...) + { } + + _Empty_byte _M_empty; + _Up _M_value; + }; + + template + union _Storage<_Up, false> + { + constexpr _Storage() noexcept : _M_empty() { } + + template + constexpr + _Storage(in_place_t, _Args&&... __args) + : _M_value(std::forward<_Args>(__args)...) + { } + + template + constexpr + _Storage(std::initializer_list<_Vp> __il, _Args&&... __args) + : _M_value(__il, std::forward<_Args>(__args)...) + { } + + // User-provided destructor is needed when _Up has non-trivial dtor. + ~_Storage() { } + + _Empty_byte _M_empty; + _Up _M_value; + }; + + _Storage<_Stored_type> _M_payload; + + bool _M_engaged = false; + + template + void + _M_construct(_Args&&... __args) + noexcept(is_nothrow_constructible_v<_Stored_type, _Args...>) + { + ::new ((void *) std::__addressof(this->_M_payload)) + _Stored_type(std::forward<_Args>(__args)...); + this->_M_engaged = true; + } + + constexpr void + _M_destroy() noexcept + { + _M_engaged = false; + _M_payload._M_value.~_Stored_type(); + } + + // The _M_get() operations have _M_engaged as a precondition. + // They exist to access the contained value with the appropriate + // const-qualification, because _M_payload has had the const removed. + + constexpr _Tp& + _M_get() noexcept + { return this->_M_payload._M_value; } + + constexpr const _Tp& + _M_get() const noexcept + { return this->_M_payload._M_value; } + + // _M_reset is a 'safe' operation with no precondition. + constexpr void + _M_reset() noexcept + { + if (this->_M_engaged) + _M_destroy(); + } + }; + + // Class template that manages the payload for optionals. + template , + bool /*_HasTrivialCopy */ = + is_trivially_copy_assignable_v<_Tp> + && is_trivially_copy_constructible_v<_Tp>, + bool /*_HasTrivialMove */ = + is_trivially_move_assignable_v<_Tp> + && is_trivially_move_constructible_v<_Tp>> + struct _Optional_payload; + + // Payload for potentially-constexpr optionals (trivial copy/move/destroy). + template + struct _Optional_payload<_Tp, true, true, true> + : _Optional_payload_base<_Tp> + { + using _Optional_payload_base<_Tp>::_Optional_payload_base; + + _Optional_payload() = default; + }; + + // Payload for optionals with non-trivial copy construction/assignment. + template + struct _Optional_payload<_Tp, true, false, true> + : _Optional_payload_base<_Tp> + { + using _Optional_payload_base<_Tp>::_Optional_payload_base; + + _Optional_payload() = default; + ~_Optional_payload() = default; + _Optional_payload(const _Optional_payload&) = default; + _Optional_payload(_Optional_payload&&) = default; + _Optional_payload& operator=(_Optional_payload&&) = default; + + // Non-trivial copy assignment. + constexpr + _Optional_payload& + operator=(const _Optional_payload& __other) + { + this->_M_copy_assign(__other); + return *this; + } + }; + + // Payload for optionals with non-trivial move construction/assignment. + template + struct _Optional_payload<_Tp, true, true, false> + : _Optional_payload_base<_Tp> + { + using _Optional_payload_base<_Tp>::_Optional_payload_base; + + _Optional_payload() = default; + ~_Optional_payload() = default; + _Optional_payload(const _Optional_payload&) = default; + _Optional_payload(_Optional_payload&&) = default; + _Optional_payload& operator=(const _Optional_payload&) = default; + + // Non-trivial move assignment. + constexpr + _Optional_payload& + operator=(_Optional_payload&& __other) + noexcept(__and_v, + is_nothrow_move_assignable<_Tp>>) + { + this->_M_move_assign(std::move(__other)); + return *this; + } + }; + + // Payload for optionals with non-trivial copy and move assignment. + template + struct _Optional_payload<_Tp, true, false, false> + : _Optional_payload_base<_Tp> + { + using _Optional_payload_base<_Tp>::_Optional_payload_base; + + _Optional_payload() = default; + ~_Optional_payload() = default; + _Optional_payload(const _Optional_payload&) = default; + _Optional_payload(_Optional_payload&&) = default; + + // Non-trivial copy assignment. + constexpr + _Optional_payload& + operator=(const _Optional_payload& __other) + { + this->_M_copy_assign(__other); + return *this; + } + + // Non-trivial move assignment. + constexpr + _Optional_payload& + operator=(_Optional_payload&& __other) + noexcept(__and_v, + is_nothrow_move_assignable<_Tp>>) + { + this->_M_move_assign(std::move(__other)); + return *this; + } + }; + + // Payload for optionals with non-trivial destructors. + template + struct _Optional_payload<_Tp, false, _Copy, _Move> + : _Optional_payload<_Tp, true, false, false> + { + // Base class implements all the constructors and assignment operators: + using _Optional_payload<_Tp, true, false, false>::_Optional_payload; + _Optional_payload() = default; + _Optional_payload(const _Optional_payload&) = default; + _Optional_payload(_Optional_payload&&) = default; + _Optional_payload& operator=(const _Optional_payload&) = default; + _Optional_payload& operator=(_Optional_payload&&) = default; + + // Destructor needs to destroy the contained value: + ~_Optional_payload() { this->_M_reset(); } + }; + + // Common base class for _Optional_base to avoid repeating these + // member functions in each specialization. + template + class _Optional_base_impl + { + protected: + using _Stored_type = remove_const_t<_Tp>; + + // The _M_construct operation has !_M_engaged as a precondition + // while _M_destruct has _M_engaged as a precondition. + template + void + _M_construct(_Args&&... __args) + noexcept(is_nothrow_constructible_v<_Stored_type, _Args...>) + { + ::new + (std::__addressof(static_cast<_Dp*>(this)->_M_payload._M_payload)) + _Stored_type(std::forward<_Args>(__args)...); + static_cast<_Dp*>(this)->_M_payload._M_engaged = true; + } + + void + _M_destruct() noexcept + { static_cast<_Dp*>(this)->_M_payload._M_destroy(); } + + // _M_reset is a 'safe' operation with no precondition. + constexpr void + _M_reset() noexcept + { static_cast<_Dp*>(this)->_M_payload._M_reset(); } + + constexpr bool _M_is_engaged() const noexcept + { return static_cast(this)->_M_payload._M_engaged; } + + // The _M_get operations have _M_engaged as a precondition. + constexpr _Tp& + _M_get() noexcept + { + __glibcxx_assert(this->_M_is_engaged()); + return static_cast<_Dp*>(this)->_M_payload._M_get(); + } + + constexpr const _Tp& + _M_get() const noexcept + { + __glibcxx_assert(this->_M_is_engaged()); + return static_cast(this)->_M_payload._M_get(); + } + }; + + /** + * @brief Class template that provides copy/move constructors of optional. + * + * Such a separate base class template is necessary in order to + * conditionally make copy/move constructors trivial. + * + * When the contained value is trivially copy/move constructible, + * the copy/move constructors of _Optional_base will invoke the + * trivial copy/move constructor of _Optional_payload. Otherwise, + * they will invoke _Optional_payload(bool, const _Optional_payload&) + * or _Optional_payload(bool, _Optional_payload&&) to initialize + * the contained value, if copying/moving an engaged optional. + * + * Whether the other special members are trivial is determined by the + * _Optional_payload<_Tp> specialization used for the _M_payload member. + * + * @see optional, _Enable_special_members + */ + template, + bool = is_trivially_move_constructible_v<_Tp>> + struct _Optional_base + : _Optional_base_impl<_Tp, _Optional_base<_Tp>> + { + // Constructors for disengaged optionals. + constexpr _Optional_base() = default; + + // Constructors for engaged optionals. + template, bool> = false> + constexpr explicit _Optional_base(in_place_t, _Args&&... __args) + : _M_payload(in_place, + std::forward<_Args>(__args)...) { } + + template&, + _Args&&...>, bool> = false> + constexpr explicit _Optional_base(in_place_t, + initializer_list<_Up> __il, + _Args&&... __args) + : _M_payload(in_place, + __il, std::forward<_Args>(__args)...) + { } + + // Copy and move constructors. + constexpr _Optional_base(const _Optional_base& __other) + : _M_payload(__other._M_payload._M_engaged, + __other._M_payload) + { } + + constexpr _Optional_base(_Optional_base&& __other) + noexcept(is_nothrow_move_constructible_v<_Tp>) + : _M_payload(__other._M_payload._M_engaged, + std::move(__other._M_payload)) + { } + + // Assignment operators. + _Optional_base& operator=(const _Optional_base&) = default; + _Optional_base& operator=(_Optional_base&&) = default; + + _Optional_payload<_Tp> _M_payload; + }; + + template + struct _Optional_base<_Tp, false, true> + : _Optional_base_impl<_Tp, _Optional_base<_Tp>> + { + // Constructors for disengaged optionals. + constexpr _Optional_base() = default; + + // Constructors for engaged optionals. + template, bool> = false> + constexpr explicit _Optional_base(in_place_t, _Args&&... __args) + : _M_payload(in_place, + std::forward<_Args>(__args)...) { } + + template&, + _Args&&...>, bool> = false> + constexpr explicit _Optional_base(in_place_t, + initializer_list<_Up> __il, + _Args&&... __args) + : _M_payload(in_place, + __il, std::forward<_Args>(__args)...) + { } + + // Copy and move constructors. + constexpr _Optional_base(const _Optional_base& __other) + : _M_payload(__other._M_payload._M_engaged, + __other._M_payload) + { } + + constexpr _Optional_base(_Optional_base&& __other) = default; + + // Assignment operators. + _Optional_base& operator=(const _Optional_base&) = default; + _Optional_base& operator=(_Optional_base&&) = default; + + _Optional_payload<_Tp> _M_payload; + }; + + template + struct _Optional_base<_Tp, true, false> + : _Optional_base_impl<_Tp, _Optional_base<_Tp>> + { + // Constructors for disengaged optionals. + constexpr _Optional_base() = default; + + // Constructors for engaged optionals. + template, bool> = false> + constexpr explicit _Optional_base(in_place_t, _Args&&... __args) + : _M_payload(in_place, + std::forward<_Args>(__args)...) { } + + template&, + _Args&&...>, bool> = false> + constexpr explicit _Optional_base(in_place_t, + initializer_list<_Up> __il, + _Args&&... __args) + : _M_payload(in_place, + __il, std::forward<_Args>(__args)...) + { } + + // Copy and move constructors. + constexpr _Optional_base(const _Optional_base& __other) = default; + + constexpr _Optional_base(_Optional_base&& __other) + noexcept(is_nothrow_move_constructible_v<_Tp>) + : _M_payload(__other._M_payload._M_engaged, + std::move(__other._M_payload)) + { } + + // Assignment operators. + _Optional_base& operator=(const _Optional_base&) = default; + _Optional_base& operator=(_Optional_base&&) = default; + + _Optional_payload<_Tp> _M_payload; + }; + + template + struct _Optional_base<_Tp, true, true> + : _Optional_base_impl<_Tp, _Optional_base<_Tp>> + { + // Constructors for disengaged optionals. + constexpr _Optional_base() = default; + + // Constructors for engaged optionals. + template, bool> = false> + constexpr explicit _Optional_base(in_place_t, _Args&&... __args) + : _M_payload(in_place, + std::forward<_Args>(__args)...) { } + + template&, + _Args&&...>, bool> = false> + constexpr explicit _Optional_base(in_place_t, + initializer_list<_Up> __il, + _Args&&... __args) + : _M_payload(in_place, + __il, std::forward<_Args>(__args)...) + { } + + // Copy and move constructors. + constexpr _Optional_base(const _Optional_base& __other) = default; + constexpr _Optional_base(_Optional_base&& __other) = default; + + // Assignment operators. + _Optional_base& operator=(const _Optional_base&) = default; + _Optional_base& operator=(_Optional_base&&) = default; + + _Optional_payload<_Tp> _M_payload; + }; + + template + class optional; + + template + using __converts_from_optional = + __or_&>, + is_constructible<_Tp, optional<_Up>&>, + is_constructible<_Tp, const optional<_Up>&&>, + is_constructible<_Tp, optional<_Up>&&>, + is_convertible&, _Tp>, + is_convertible&, _Tp>, + is_convertible&&, _Tp>, + is_convertible&&, _Tp>>; + + template + using __assigns_from_optional = + __or_&>, + is_assignable<_Tp&, optional<_Up>&>, + is_assignable<_Tp&, const optional<_Up>&&>, + is_assignable<_Tp&, optional<_Up>&&>>; + + /** + * @brief Class template for optional values. + */ + template + class optional + : private _Optional_base<_Tp>, + private _Enable_copy_move< + // Copy constructor. + is_copy_constructible_v<_Tp>, + // Copy assignment. + __and_v, is_copy_assignable<_Tp>>, + // Move constructor. + is_move_constructible_v<_Tp>, + // Move assignment. + __and_v, is_move_assignable<_Tp>>, + // Unique tag type. + optional<_Tp>> + { + static_assert(!is_same_v, nullopt_t>); + static_assert(!is_same_v, in_place_t>); + static_assert(!is_reference_v<_Tp>); + + private: + using _Base = _Optional_base<_Tp>; + + // SFINAE helpers + template + using __not_self = __not_>>; + template + using __not_tag = __not_>>; + template + using _Requires = enable_if_t<__and_v<_Cond...>, bool>; + + public: + using value_type = _Tp; + + constexpr optional() = default; + + constexpr optional(nullopt_t) noexcept { } + + // Converting constructors for engaged optionals. + template, __not_tag<_Up>, + is_constructible<_Tp, _Up&&>, + is_convertible<_Up&&, _Tp>> = true> + constexpr + optional(_Up&& __t) + : _Base(std::in_place, std::forward<_Up>(__t)) { } + + template, __not_tag<_Up>, + is_constructible<_Tp, _Up&&>, + __not_>> = false> + explicit constexpr + optional(_Up&& __t) + : _Base(std::in_place, std::forward<_Up>(__t)) { } + + template>, + is_constructible<_Tp, const _Up&>, + is_convertible, + __not_<__converts_from_optional<_Tp, _Up>>> = true> + constexpr + optional(const optional<_Up>& __t) + { + if (__t) + emplace(*__t); + } + + template>, + is_constructible<_Tp, const _Up&>, + __not_>, + __not_<__converts_from_optional<_Tp, _Up>>> = false> + explicit constexpr + optional(const optional<_Up>& __t) + { + if (__t) + emplace(*__t); + } + + template >, + is_constructible<_Tp, _Up&&>, + is_convertible<_Up&&, _Tp>, + __not_<__converts_from_optional<_Tp, _Up>>> = true> + constexpr + optional(optional<_Up>&& __t) + { + if (__t) + emplace(std::move(*__t)); + } + + template >, + is_constructible<_Tp, _Up&&>, + __not_>, + __not_<__converts_from_optional<_Tp, _Up>>> = false> + explicit constexpr + optional(optional<_Up>&& __t) + { + if (__t) + emplace(std::move(*__t)); + } + + template> = false> + explicit constexpr + optional(in_place_t, _Args&&... __args) + : _Base(std::in_place, std::forward<_Args>(__args)...) { } + + template&, + _Args&&...>> = false> + explicit constexpr + optional(in_place_t, initializer_list<_Up> __il, _Args&&... __args) + : _Base(std::in_place, __il, std::forward<_Args>(__args)...) { } + + // Assignment operators. + optional& + operator=(nullopt_t) noexcept + { + this->_M_reset(); + return *this; + } + + template + enable_if_t<__and_v<__not_self<_Up>, + __not_<__and_, + is_same<_Tp, decay_t<_Up>>>>, + is_constructible<_Tp, _Up>, + is_assignable<_Tp&, _Up>>, + optional&> + operator=(_Up&& __u) + { + if (this->_M_is_engaged()) + this->_M_get() = std::forward<_Up>(__u); + else + this->_M_construct(std::forward<_Up>(__u)); + + return *this; + } + + template + enable_if_t<__and_v<__not_>, + is_constructible<_Tp, const _Up&>, + is_assignable<_Tp&, _Up>, + __not_<__converts_from_optional<_Tp, _Up>>, + __not_<__assigns_from_optional<_Tp, _Up>>>, + optional&> + operator=(const optional<_Up>& __u) + { + if (__u) + { + if (this->_M_is_engaged()) + this->_M_get() = *__u; + else + this->_M_construct(*__u); + } + else + { + this->_M_reset(); + } + return *this; + } + + template + enable_if_t<__and_v<__not_>, + is_constructible<_Tp, _Up>, + is_assignable<_Tp&, _Up>, + __not_<__converts_from_optional<_Tp, _Up>>, + __not_<__assigns_from_optional<_Tp, _Up>>>, + optional&> + operator=(optional<_Up>&& __u) + { + if (__u) + { + if (this->_M_is_engaged()) + this->_M_get() = std::move(*__u); + else + this->_M_construct(std::move(*__u)); + } + else + { + this->_M_reset(); + } + + return *this; + } + + template + enable_if_t, _Tp&> + emplace(_Args&&... __args) + { + this->_M_reset(); + this->_M_construct(std::forward<_Args>(__args)...); + return this->_M_get(); + } + + template + enable_if_t&, + _Args&&...>, _Tp&> + emplace(initializer_list<_Up> __il, _Args&&... __args) + { + this->_M_reset(); + this->_M_construct(__il, std::forward<_Args>(__args)...); + return this->_M_get(); + } + + // Destructor is implicit, implemented in _Optional_base. + + // Swap. + void + swap(optional& __other) + noexcept(is_nothrow_move_constructible_v<_Tp> + && is_nothrow_swappable_v<_Tp>) + { + using std::swap; + + if (this->_M_is_engaged() && __other._M_is_engaged()) + swap(this->_M_get(), __other._M_get()); + else if (this->_M_is_engaged()) + { + __other._M_construct(std::move(this->_M_get())); + this->_M_destruct(); + } + else if (__other._M_is_engaged()) + { + this->_M_construct(std::move(__other._M_get())); + __other._M_destruct(); + } + } + + // Observers. + constexpr const _Tp* + operator->() const + { return std::__addressof(this->_M_get()); } + + constexpr _Tp* + operator->() + { return std::__addressof(this->_M_get()); } + + constexpr const _Tp& + operator*() const& + { return this->_M_get(); } + + constexpr _Tp& + operator*()& + { return this->_M_get(); } + + constexpr _Tp&& + operator*()&& + { return std::move(this->_M_get()); } + + constexpr const _Tp&& + operator*() const&& + { return std::move(this->_M_get()); } + + constexpr explicit operator bool() const noexcept + { return this->_M_is_engaged(); } + + constexpr bool has_value() const noexcept + { return this->_M_is_engaged(); } + + constexpr const _Tp& + value() const& + { + return this->_M_is_engaged() + ? this->_M_get() + : (__throw_bad_optional_access(), this->_M_get()); + } + + constexpr _Tp& + value()& + { + return this->_M_is_engaged() + ? this->_M_get() + : (__throw_bad_optional_access(), this->_M_get()); + } + + constexpr _Tp&& + value()&& + { + return this->_M_is_engaged() + ? std::move(this->_M_get()) + : (__throw_bad_optional_access(), std::move(this->_M_get())); + } + + constexpr const _Tp&& + value() const&& + { + return this->_M_is_engaged() + ? std::move(this->_M_get()) + : (__throw_bad_optional_access(), std::move(this->_M_get())); + } + + template + constexpr _Tp + value_or(_Up&& __u) const& + { + static_assert(is_copy_constructible_v<_Tp>); + static_assert(is_convertible_v<_Up&&, _Tp>); + + return this->_M_is_engaged() + ? this->_M_get() : static_cast<_Tp>(std::forward<_Up>(__u)); + } + + template + constexpr _Tp + value_or(_Up&& __u) && + { + static_assert(is_move_constructible_v<_Tp>); + static_assert(is_convertible_v<_Up&&, _Tp>); + + return this->_M_is_engaged() + ? std::move(this->_M_get()) + : static_cast<_Tp>(std::forward<_Up>(__u)); + } + + void reset() noexcept { this->_M_reset(); } + }; + + template + using __optional_relop_t = + enable_if_t::value, bool>; + + // Comparisons between optional values. + template + constexpr auto + operator==(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) + -> __optional_relop_t() == declval<_Up>())> + { + return static_cast(__lhs) == static_cast(__rhs) + && (!__lhs || *__lhs == *__rhs); + } + + template + constexpr auto + operator!=(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) + -> __optional_relop_t() != declval<_Up>())> + { + return static_cast(__lhs) != static_cast(__rhs) + || (static_cast(__lhs) && *__lhs != *__rhs); + } + + template + constexpr auto + operator<(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) + -> __optional_relop_t() < declval<_Up>())> + { + return static_cast(__rhs) && (!__lhs || *__lhs < *__rhs); + } + + template + constexpr auto + operator>(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) + -> __optional_relop_t() > declval<_Up>())> + { + return static_cast(__lhs) && (!__rhs || *__lhs > *__rhs); + } + + template + constexpr auto + operator<=(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) + -> __optional_relop_t() <= declval<_Up>())> + { + return !__lhs || (static_cast(__rhs) && *__lhs <= *__rhs); + } + + template + constexpr auto + operator>=(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) + -> __optional_relop_t() >= declval<_Up>())> + { + return !__rhs || (static_cast(__lhs) && *__lhs >= *__rhs); + } + +#ifdef __cpp_lib_three_way_comparison + template _Up> + constexpr compare_three_way_result_t<_Tp, _Up> + operator<=>(const optional<_Tp>& __x, const optional<_Up>& __y) + { + return __x && __y ? *__x <=> *__y : bool(__x) <=> bool(__y); + } +#endif + + // Comparisons with nullopt. + template + constexpr bool + operator==(const optional<_Tp>& __lhs, nullopt_t) noexcept + { return !__lhs; } + +#ifdef __cpp_lib_three_way_comparison + template + constexpr strong_ordering + operator<=>(const optional<_Tp>& __x, nullopt_t) noexcept + { return bool(__x) <=> false; } +#else + template + constexpr bool + operator==(nullopt_t, const optional<_Tp>& __rhs) noexcept + { return !__rhs; } + + template + constexpr bool + operator!=(const optional<_Tp>& __lhs, nullopt_t) noexcept + { return static_cast(__lhs); } + + template + constexpr bool + operator!=(nullopt_t, const optional<_Tp>& __rhs) noexcept + { return static_cast(__rhs); } + + template + constexpr bool + operator<(const optional<_Tp>& /* __lhs */, nullopt_t) noexcept + { return false; } + + template + constexpr bool + operator<(nullopt_t, const optional<_Tp>& __rhs) noexcept + { return static_cast(__rhs); } + + template + constexpr bool + operator>(const optional<_Tp>& __lhs, nullopt_t) noexcept + { return static_cast(__lhs); } + + template + constexpr bool + operator>(nullopt_t, const optional<_Tp>& /* __rhs */) noexcept + { return false; } + + template + constexpr bool + operator<=(const optional<_Tp>& __lhs, nullopt_t) noexcept + { return !__lhs; } + + template + constexpr bool + operator<=(nullopt_t, const optional<_Tp>& /* __rhs */) noexcept + { return true; } + + template + constexpr bool + operator>=(const optional<_Tp>& /* __lhs */, nullopt_t) noexcept + { return true; } + + template + constexpr bool + operator>=(nullopt_t, const optional<_Tp>& __rhs) noexcept + { return !__rhs; } +#endif // three-way-comparison + + // Comparisons with value type. + template + constexpr auto + operator==(const optional<_Tp>& __lhs, const _Up& __rhs) + -> __optional_relop_t() == declval<_Up>())> + { return __lhs && *__lhs == __rhs; } + + template + constexpr auto + operator==(const _Up& __lhs, const optional<_Tp>& __rhs) + -> __optional_relop_t() == declval<_Tp>())> + { return __rhs && __lhs == *__rhs; } + + template + constexpr auto + operator!=(const optional<_Tp>& __lhs, const _Up& __rhs) + -> __optional_relop_t() != declval<_Up>())> + { return !__lhs || *__lhs != __rhs; } + + template + constexpr auto + operator!=(const _Up& __lhs, const optional<_Tp>& __rhs) + -> __optional_relop_t() != declval<_Tp>())> + { return !__rhs || __lhs != *__rhs; } + + template + constexpr auto + operator<(const optional<_Tp>& __lhs, const _Up& __rhs) + -> __optional_relop_t() < declval<_Up>())> + { return !__lhs || *__lhs < __rhs; } + + template + constexpr auto + operator<(const _Up& __lhs, const optional<_Tp>& __rhs) + -> __optional_relop_t() < declval<_Tp>())> + { return __rhs && __lhs < *__rhs; } + + template + constexpr auto + operator>(const optional<_Tp>& __lhs, const _Up& __rhs) + -> __optional_relop_t() > declval<_Up>())> + { return __lhs && *__lhs > __rhs; } + + template + constexpr auto + operator>(const _Up& __lhs, const optional<_Tp>& __rhs) + -> __optional_relop_t() > declval<_Tp>())> + { return !__rhs || __lhs > *__rhs; } + + template + constexpr auto + operator<=(const optional<_Tp>& __lhs, const _Up& __rhs) + -> __optional_relop_t() <= declval<_Up>())> + { return !__lhs || *__lhs <= __rhs; } + + template + constexpr auto + operator<=(const _Up& __lhs, const optional<_Tp>& __rhs) + -> __optional_relop_t() <= declval<_Tp>())> + { return __rhs && __lhs <= *__rhs; } + + template + constexpr auto + operator>=(const optional<_Tp>& __lhs, const _Up& __rhs) + -> __optional_relop_t() >= declval<_Up>())> + { return __lhs && *__lhs >= __rhs; } + + template + constexpr auto + operator>=(const _Up& __lhs, const optional<_Tp>& __rhs) + -> __optional_relop_t() >= declval<_Tp>())> + { return !__rhs || __lhs >= *__rhs; } + +#ifdef __cpp_lib_three_way_comparison + template + constexpr compare_three_way_result_t<_Tp, _Up> + operator<=>(const optional<_Tp>& __x, const _Up& __v) + { return bool(__x) ? *__x <=> __v : strong_ordering::less; } +#endif + + // Swap and creation functions. + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2748. swappable traits for optionals + template + inline enable_if_t && is_swappable_v<_Tp>> + swap(optional<_Tp>& __lhs, optional<_Tp>& __rhs) + noexcept(noexcept(__lhs.swap(__rhs))) + { __lhs.swap(__rhs); } + + template + enable_if_t && is_swappable_v<_Tp>)> + swap(optional<_Tp>&, optional<_Tp>&) = delete; + + template + constexpr optional> + make_optional(_Tp&& __t) + { return optional> { std::forward<_Tp>(__t) }; } + + template + constexpr optional<_Tp> + make_optional(_Args&&... __args) + { return optional<_Tp> { in_place, std::forward<_Args>(__args)... }; } + + template + constexpr optional<_Tp> + make_optional(initializer_list<_Up> __il, _Args&&... __args) + { return optional<_Tp> { in_place, __il, std::forward<_Args>(__args)... }; } + + // Hash. + + template, + bool = __poison_hash<_Up>::__enable_hash_call> + struct __optional_hash_call_base + { + size_t + operator()(const optional<_Tp>& __t) const + noexcept(noexcept(hash<_Up>{}(*__t))) + { + // We pick an arbitrary hash for disengaged optionals which hopefully + // usual values of _Tp won't typically hash to. + constexpr size_t __magic_disengaged_hash = static_cast(-3333); + return __t ? hash<_Up>{}(*__t) : __magic_disengaged_hash; + } + }; + + template + struct __optional_hash_call_base<_Tp, _Up, false> {}; + + template + struct hash> + : private __poison_hash>, + public __optional_hash_call_base<_Tp> + { + using result_type [[__deprecated__]] = size_t; + using argument_type [[__deprecated__]] = optional<_Tp>; + }; + + template + struct __is_fast_hash>> : __is_fast_hash> + { }; + + /// @} + +#if __cpp_deduction_guides >= 201606 + template optional(_Tp) -> optional<_Tp>; +#endif + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++17 + +#endif // _GLIBCXX_OPTIONAL diff --git a/resources/sources/avr-libstdcpp/include/queue b/resources/sources/avr-libstdcpp/include/queue new file mode 100644 index 000000000..ef6b6fd60 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/queue @@ -0,0 +1,66 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/queue + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_QUEUE +#define _GLIBCXX_QUEUE 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include + +#endif /* _GLIBCXX_QUEUE */ diff --git a/resources/sources/avr-libstdcpp/include/random b/resources/sources/avr-libstdcpp/include/random new file mode 100644 index 000000000..7a68ba37f --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/random @@ -0,0 +1,54 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/random + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_RANDOM +#define _GLIBCXX_RANDOM 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_USE_C99_STDINT_TR1 + +#include // For uint_fast32_t, uint_fast64_t, uint_least32_t +#include +#include + +#endif // _GLIBCXX_USE_C99_STDINT_TR1 + +#endif // C++11 + +#endif // _GLIBCXX_RANDOM diff --git a/resources/sources/avr-libstdcpp/include/ranges b/resources/sources/avr-libstdcpp/include/ranges new file mode 100644 index 000000000..56800095b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ranges @@ -0,0 +1,3561 @@ +// -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/ranges + * This is a Standard C++ Library header. + * @ingroup concepts + */ + +#ifndef _GLIBCXX_RANGES +#define _GLIBCXX_RANGES 1 + +#if __cplusplus > 201703L + +#pragma GCC system_header + +#include + +#if __cpp_lib_concepts + +#include +#include +#include +#include +#include +#include + +/** + * @defgroup ranges Ranges + * + * Components for dealing with ranges of elements. + */ + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION +namespace ranges +{ + // [range.range] The range concept. + // [range.sized] The sized_range concept. + // Defined in + + // [range.refinements] + // Defined in + + struct view_base { }; + + template + inline constexpr bool enable_view = derived_from<_Tp, view_base>; + + template + concept view + = range<_Tp> && movable<_Tp> && default_initializable<_Tp> + && enable_view<_Tp>; + + /// A range which can be safely converted to a view. + template + concept viewable_range = range<_Tp> + && (borrowed_range<_Tp> || view>); + + namespace __detail + { + template + concept __simple_view = view<_Range> && range + && same_as, iterator_t> + && same_as, sentinel_t>; + + template + concept __has_arrow = input_iterator<_It> + && (is_pointer_v<_It> || requires(_It __it) { __it.operator->(); }); + + template + concept __not_same_as + = !same_as, remove_cvref_t<_Up>>; + } // namespace __detail + + template + requires is_class_v<_Derived> && same_as<_Derived, remove_cv_t<_Derived>> + class view_interface : public view_base + { + private: + constexpr _Derived& _M_derived() noexcept + { + static_assert(derived_from<_Derived, view_interface<_Derived>>); + static_assert(view<_Derived>); + return static_cast<_Derived&>(*this); + } + + constexpr const _Derived& _M_derived() const noexcept + { + static_assert(derived_from<_Derived, view_interface<_Derived>>); + static_assert(view<_Derived>); + return static_cast(*this); + } + + public: + constexpr bool + empty() requires forward_range<_Derived> + { return ranges::begin(_M_derived()) == ranges::end(_M_derived()); } + + constexpr bool + empty() const requires forward_range + { return ranges::begin(_M_derived()) == ranges::end(_M_derived()); } + + constexpr explicit + operator bool() requires requires { ranges::empty(_M_derived()); } + { return !ranges::empty(_M_derived()); } + + constexpr explicit + operator bool() const requires requires { ranges::empty(_M_derived()); } + { return !ranges::empty(_M_derived()); } + + constexpr auto + data() requires contiguous_iterator> + { return to_address(ranges::begin(_M_derived())); } + + constexpr auto + data() const + requires range + && contiguous_iterator> + { return to_address(ranges::begin(_M_derived())); } + + constexpr auto + size() + requires forward_range<_Derived> + && sized_sentinel_for, iterator_t<_Derived>> + { return ranges::end(_M_derived()) - ranges::begin(_M_derived()); } + + constexpr auto + size() const + requires forward_range + && sized_sentinel_for, + iterator_t> + { return ranges::end(_M_derived()) - ranges::begin(_M_derived()); } + + constexpr decltype(auto) + front() requires forward_range<_Derived> + { + __glibcxx_assert(!empty()); + return *ranges::begin(_M_derived()); + } + + constexpr decltype(auto) + front() const requires forward_range + { + __glibcxx_assert(!empty()); + return *ranges::begin(_M_derived()); + } + + constexpr decltype(auto) + back() + requires bidirectional_range<_Derived> && common_range<_Derived> + { + __glibcxx_assert(!empty()); + return *ranges::prev(ranges::end(_M_derived())); + } + + constexpr decltype(auto) + back() const + requires bidirectional_range + && common_range + { + __glibcxx_assert(!empty()); + return *ranges::prev(ranges::end(_M_derived())); + } + + template + constexpr decltype(auto) + operator[](range_difference_t<_Range> __n) + { return ranges::begin(_M_derived())[__n]; } + + template + constexpr decltype(auto) + operator[](range_difference_t<_Range> __n) const + { return ranges::begin(_M_derived())[__n]; } + }; + + namespace __detail + { + template + concept __convertible_to_non_slicing = convertible_to<_From, _To> + && !(is_pointer_v> && is_pointer_v> + && __not_same_as>, + remove_pointer_t>>); + + template + concept __pair_like + = !is_reference_v<_Tp> && requires(_Tp __t) + { + typename tuple_size<_Tp>::type; + requires derived_from, integral_constant>; + typename tuple_element_t<0, remove_const_t<_Tp>>; + typename tuple_element_t<1, remove_const_t<_Tp>>; + { get<0>(__t) } -> convertible_to&>; + { get<1>(__t) } -> convertible_to&>; + }; + + template + concept __pair_like_convertible_from + = !range<_Tp> && __pair_like<_Tp> + && constructible_from<_Tp, _Up, _Vp> + && __convertible_to_non_slicing<_Up, tuple_element_t<0, _Tp>> + && convertible_to<_Vp, tuple_element_t<1, _Tp>>; + + template + concept __iterator_sentinel_pair + = !range<_Tp> && __pair_like<_Tp> + && sentinel_for, tuple_element_t<0, _Tp>>; + + } // namespace __detail + + enum class subrange_kind : bool { unsized, sized }; + + template _Sent = _It, + subrange_kind _Kind = sized_sentinel_for<_Sent, _It> + ? subrange_kind::sized : subrange_kind::unsized> + requires (_Kind == subrange_kind::sized || !sized_sentinel_for<_Sent, _It>) + class subrange : public view_interface> + { + private: + // XXX: gcc complains when using constexpr here + static const bool _S_store_size + = _Kind == subrange_kind::sized && !sized_sentinel_for<_Sent, _It>; + + _It _M_begin = _It(); + _Sent _M_end = _Sent(); + + template + struct _Size + { }; + + template + struct _Size<_Tp, true> + { __detail::__make_unsigned_like_t<_Tp> _M_size; }; + + [[no_unique_address]] _Size> _M_size = {}; + + public: + subrange() = default; + + constexpr + subrange(__detail::__convertible_to_non_slicing<_It> auto __i, _Sent __s) + requires (!_S_store_size) + : _M_begin(std::move(__i)), _M_end(__s) + { } + + constexpr + subrange(__detail::__convertible_to_non_slicing<_It> auto __i, _Sent __s, + __detail::__make_unsigned_like_t> __n) + requires (_Kind == subrange_kind::sized) + : _M_begin(std::move(__i)), _M_end(__s) + { + using __detail::__to_unsigned_like; + __glibcxx_assert(__n == __to_unsigned_like(ranges::distance(__i, __s))); + if constexpr (_S_store_size) + _M_size._M_size = __n; + } + + template<__detail::__not_same_as _Rng> + requires borrowed_range<_Rng> + && __detail::__convertible_to_non_slicing, _It> + && convertible_to, _Sent> + constexpr + subrange(_Rng&& __r) requires _S_store_size && sized_range<_Rng> + : subrange{__r, ranges::size(__r)} + { } + + template<__detail::__not_same_as _Rng> + requires borrowed_range<_Rng> + && __detail::__convertible_to_non_slicing, _It> + && convertible_to, _Sent> + constexpr + subrange(_Rng&& __r) requires (!_S_store_size) + : subrange{ranges::begin(__r), ranges::end(__r)} + { } + + template + requires __detail::__convertible_to_non_slicing, _It> + && convertible_to, _Sent> + constexpr + subrange(_Rng&& __r, + __detail::__make_unsigned_like_t> __n) + requires (_Kind == subrange_kind::sized) + : subrange{ranges::begin(__r), ranges::end(__r), __n} + { } + + template<__detail::__not_same_as _PairLike> + requires __detail::__pair_like_convertible_from<_PairLike, const _It&, + const _Sent&> + constexpr + operator _PairLike() const + { return _PairLike(_M_begin, _M_end); } + + constexpr _It + begin() const requires copyable<_It> + { return _M_begin; } + + [[nodiscard]] constexpr _It + begin() requires (!copyable<_It>) + { return std::move(_M_begin); } + + constexpr _Sent end() const { return _M_end; } + + constexpr bool empty() const { return _M_begin == _M_end; } + + constexpr __detail::__make_unsigned_like_t> + size() const requires (_Kind == subrange_kind::sized) + { + if constexpr (_S_store_size) + return _M_size._M_size; + else + return __detail::__to_unsigned_like(_M_end - _M_begin); + } + + [[nodiscard]] constexpr subrange + next(iter_difference_t<_It> __n = 1) const & + requires forward_iterator<_It> + { + auto __tmp = *this; + __tmp.advance(__n); + return __tmp; + } + + [[nodiscard]] constexpr subrange + next(iter_difference_t<_It> __n = 1) && + { + advance(__n); + return std::move(*this); + } + + [[nodiscard]] constexpr subrange + prev(iter_difference_t<_It> __n = 1) const + requires bidirectional_iterator<_It> + { + auto __tmp = *this; + __tmp.advance(-__n); + return __tmp; + } + + constexpr subrange& + advance(iter_difference_t<_It> __n) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3433. subrange::advance(n) has UB when n < 0 + if constexpr (bidirectional_iterator<_It>) + if (__n < 0) + { + ranges::advance(_M_begin, __n); + if constexpr (_S_store_size) + _M_size._M_size += __detail::__to_unsigned_like(-__n); + return *this; + } + + __glibcxx_assert(__n >= 0); + auto __d = __n - ranges::advance(_M_begin, __n, _M_end); + if constexpr (_S_store_size) + _M_size._M_size -= __detail::__to_unsigned_like(__d); + return *this; + } + }; + + template _Sent> + subrange(_It, _Sent) -> subrange<_It, _Sent>; + + template _Sent> + subrange(_It, _Sent, + __detail::__make_unsigned_like_t>) + -> subrange<_It, _Sent, subrange_kind::sized>; + + template<__detail::__iterator_sentinel_pair _Pr> + subrange(_Pr) + -> subrange, tuple_element_t<1, _Pr>>; + + template<__detail::__iterator_sentinel_pair _Pr> + subrange(_Pr, __detail::__make_unsigned_like_t>>) + -> subrange, tuple_element_t<1, _Pr>, + subrange_kind::sized>; + + template + subrange(_Rng&&) + -> subrange, sentinel_t<_Rng>, + (sized_range<_Rng> + || sized_sentinel_for, iterator_t<_Rng>>) + ? subrange_kind::sized : subrange_kind::unsized>; + + template + subrange(_Rng&&, + __detail::__make_unsigned_like_t>) + -> subrange, sentinel_t<_Rng>, subrange_kind::sized>; + + template + requires (_Num < 2) + constexpr auto + get(const subrange<_It, _Sent, _Kind>& __r) + { + if constexpr (_Num == 0) + return __r.begin(); + else + return __r.end(); + } + + template + requires (_Num < 2) + constexpr auto + get(subrange<_It, _Sent, _Kind>&& __r) + { + if constexpr (_Num == 0) + return __r.begin(); + else + return __r.end(); + } + + template _Sent, + subrange_kind _Kind> + inline constexpr bool + enable_borrowed_range> = true; + +} // namespace ranges + + using ranges::get; + +namespace ranges +{ + /// Type returned by algorithms instead of a dangling iterator or subrange. + struct dangling + { + constexpr dangling() noexcept = default; + template + constexpr dangling(_Args&&...) noexcept { } + }; + + template + using borrowed_iterator_t = conditional_t, + iterator_t<_Range>, + dangling>; + + template + using borrowed_subrange_t = conditional_t, + subrange>, + dangling>; + + template requires is_object_v<_Tp> + class empty_view + : public view_interface> + { + public: + static constexpr _Tp* begin() noexcept { return nullptr; } + static constexpr _Tp* end() noexcept { return nullptr; } + static constexpr _Tp* data() noexcept { return nullptr; } + static constexpr size_t size() noexcept { return 0; } + static constexpr bool empty() noexcept { return true; } + }; + + template + inline constexpr bool enable_borrowed_range> = true; + + namespace __detail + { + template requires is_object_v<_Tp> + struct __box : std::optional<_Tp> + { + using std::optional<_Tp>::optional; + + constexpr + __box() + noexcept(is_nothrow_default_constructible_v<_Tp>) + requires default_initializable<_Tp> + : std::optional<_Tp>{std::in_place} + { } + + __box(const __box&) = default; + __box(__box&&) = default; + + using std::optional<_Tp>::operator=; + + __box& + operator=(const __box& __that) + noexcept(is_nothrow_copy_constructible_v<_Tp>) + requires (!assignable_from<_Tp&, const _Tp&>) + { + if ((bool)__that) + this->emplace(*__that); + else + this->reset(); + return *this; + } + + __box& + operator=(__box&& __that) + noexcept(is_nothrow_move_constructible_v<_Tp>) + requires (!assignable_from<_Tp&, _Tp>) + { + if ((bool)__that) + this->emplace(std::move(*__that)); + else + this->reset(); + return *this; + } + }; + + } // namespace __detail + + /// A view that contains exactly one element. + template requires is_object_v<_Tp> + class single_view : public view_interface> + { + public: + single_view() = default; + + constexpr explicit + single_view(const _Tp& __t) + : _M_value(__t) + { } + + constexpr explicit + single_view(_Tp&& __t) + : _M_value(std::move(__t)) + { } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3428. single_view's in place constructor should be explicit + template + requires constructible_from<_Tp, _Args...> + constexpr explicit + single_view(in_place_t, _Args&&... __args) + : _M_value{in_place, std::forward<_Args>(__args)...} + { } + + constexpr _Tp* + begin() noexcept + { return data(); } + + constexpr const _Tp* + begin() const noexcept + { return data(); } + + constexpr _Tp* + end() noexcept + { return data() + 1; } + + constexpr const _Tp* + end() const noexcept + { return data() + 1; } + + static constexpr size_t + size() noexcept + { return 1; } + + constexpr _Tp* + data() noexcept + { return _M_value.operator->(); } + + constexpr const _Tp* + data() const noexcept + { return _M_value.operator->(); } + + private: + __detail::__box<_Tp> _M_value; + }; + + namespace __detail + { + template + constexpr auto __to_signed_like(_Wp __w) noexcept + { + if constexpr (!integral<_Wp>) + return iter_difference_t<_Wp>(); + else if constexpr (sizeof(iter_difference_t<_Wp>) > sizeof(_Wp)) + return iter_difference_t<_Wp>(__w); + else if constexpr (sizeof(ptrdiff_t) > sizeof(_Wp)) + return ptrdiff_t(__w); + else if constexpr (sizeof(long long) > sizeof(_Wp)) + return (long long)(__w); +#ifdef __SIZEOF_INT128__ + else if constexpr (__SIZEOF_INT128__ > sizeof(_Wp)) + return __int128(__w); +#endif + else + return __max_diff_type(__w); + } + + template + using __iota_diff_t = decltype(__to_signed_like(std::declval<_Wp>())); + + template + concept __decrementable = incrementable<_It> + && requires(_It __i) + { + { --__i } -> same_as<_It&>; + { __i-- } -> same_as<_It>; + }; + + template + concept __advanceable = __decrementable<_It> && totally_ordered<_It> + && requires( _It __i, const _It __j, const __iota_diff_t<_It> __n) + { + { __i += __n } -> same_as<_It&>; + { __i -= __n } -> same_as<_It&>; + _It(__j + __n); + _It(__n + __j); + _It(__j - __n); + { __j - __j } -> convertible_to<__iota_diff_t<_It>>; + }; + + } // namespace __detail + + template + requires std::__detail::__weakly_eq_cmp_with<_Winc, _Bound> + && semiregular<_Winc> + class iota_view : public view_interface> + { + private: + struct _Sentinel; + + struct _Iterator + { + private: + static auto + _S_iter_cat() + { + using namespace __detail; + if constexpr (__advanceable<_Winc>) + return random_access_iterator_tag{}; + else if constexpr (__decrementable<_Winc>) + return bidirectional_iterator_tag{}; + else if constexpr (incrementable<_Winc>) + return forward_iterator_tag{}; + else + return input_iterator_tag{}; + } + + public: + using iterator_category = decltype(_S_iter_cat()); + using value_type = _Winc; + using difference_type = __detail::__iota_diff_t<_Winc>; + + _Iterator() = default; + + constexpr explicit + _Iterator(_Winc __value) + : _M_value(__value) { } + + constexpr _Winc + operator*() const noexcept(is_nothrow_copy_constructible_v<_Winc>) + { return _M_value; } + + constexpr _Iterator& + operator++() + { + ++_M_value; + return *this; + } + + constexpr void + operator++(int) + { ++*this; } + + constexpr _Iterator + operator++(int) requires incrementable<_Winc> + { + auto __tmp = *this; + ++*this; + return __tmp; + } + + constexpr _Iterator& + operator--() requires __detail::__decrementable<_Winc> + { + --_M_value; + return *this; + } + + constexpr _Iterator + operator--(int) requires __detail::__decrementable<_Winc> + { + auto __tmp = *this; + --*this; + return __tmp; + } + + constexpr _Iterator& + operator+=(difference_type __n) requires __detail::__advanceable<_Winc> + { + using __detail::__is_integer_like; + using __detail::__is_signed_integer_like; + if constexpr (__is_integer_like<_Winc> + && !__is_signed_integer_like<_Winc>) + { + if (__n >= difference_type(0)) + _M_value += static_cast<_Winc>(__n); + else + _M_value -= static_cast<_Winc>(-__n); + } + else + _M_value += __n; + return *this; + } + + constexpr _Iterator& + operator-=(difference_type __n) requires __detail::__advanceable<_Winc> + { + using __detail::__is_integer_like; + using __detail::__is_signed_integer_like; + if constexpr (__is_integer_like<_Winc> + && !__is_signed_integer_like<_Winc>) + { + if (__n >= difference_type(0)) + _M_value -= static_cast<_Winc>(__n); + else + _M_value += static_cast<_Winc>(-__n); + } + else + _M_value -= __n; + return *this; + } + + constexpr _Winc + operator[](difference_type __n) const + requires __detail::__advanceable<_Winc> + { return _Winc(_M_value + __n); } + + friend constexpr bool + operator==(const _Iterator& __x, const _Iterator& __y) + requires equality_comparable<_Winc> + { return __x._M_value == __y._M_value; } + + friend constexpr bool + operator<(const _Iterator& __x, const _Iterator& __y) + requires totally_ordered<_Winc> + { return __x._M_value < __y._M_value; } + + friend constexpr bool + operator>(const _Iterator& __x, const _Iterator& __y) + requires totally_ordered<_Winc> + { return __y < __x; } + + friend constexpr bool + operator<=(const _Iterator& __x, const _Iterator& __y) + requires totally_ordered<_Winc> + { return !(__y < __x); } + + friend constexpr bool + operator>=(const _Iterator& __x, const _Iterator& __y) + requires totally_ordered<_Winc> + { return !(__x < __y); } + +#ifdef __cpp_lib_three_way_comparison + friend constexpr auto + operator<=>(const _Iterator& __x, const _Iterator& __y) + requires totally_ordered<_Winc> && three_way_comparable<_Winc> + { return __x._M_value <=> __y._M_value; } +#endif + + friend constexpr _Iterator + operator+(_Iterator __i, difference_type __n) + requires __detail::__advanceable<_Winc> + { return __i += __n; } + + friend constexpr _Iterator + operator+(difference_type __n, _Iterator __i) + requires __detail::__advanceable<_Winc> + { return __i += __n; } + + friend constexpr _Iterator + operator-(_Iterator __i, difference_type __n) + requires __detail::__advanceable<_Winc> + { return __i -= __n; } + + friend constexpr difference_type + operator-(const _Iterator& __x, const _Iterator& __y) + requires __detail::__advanceable<_Winc> + { + using __detail::__is_integer_like; + using __detail::__is_signed_integer_like; + using _Dt = difference_type; + if constexpr (__is_integer_like<_Winc>) + { + if constexpr (__is_signed_integer_like<_Winc>) + return _Dt(_Dt(__x._M_value) - _Dt(__y._M_value)); + else + return (__y._M_value > __x._M_value) + ? _Dt(-_Dt(__y._M_value - __x._M_value)) + : _Dt(__x._M_value - __y._M_value); + } + else + return __x._M_value - __y._M_value; + } + + private: + _Winc _M_value = _Winc(); + + friend _Sentinel; + }; + + struct _Sentinel + { + private: + constexpr bool + _M_equal(const _Iterator& __x) const + { return __x._M_value == _M_bound; } + + _Bound _M_bound = _Bound(); + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(_Bound __bound) + : _M_bound(__bound) { } + + friend constexpr bool + operator==(const _Iterator& __x, const _Sentinel& __y) + { return __y._M_equal(__x); } + + friend constexpr iter_difference_t<_Winc> + operator-(const _Iterator& __x, const _Sentinel& __y) + requires sized_sentinel_for<_Bound, _Winc> + { return __x._M_value - __y._M_bound; } + + friend constexpr iter_difference_t<_Winc> + operator-(const _Sentinel& __x, const _Iterator& __y) + requires sized_sentinel_for<_Bound, _Winc> + { return -(__y - __x); } + }; + + _Winc _M_value = _Winc(); + _Bound _M_bound = _Bound(); + + public: + iota_view() = default; + + constexpr explicit + iota_view(_Winc __value) + : _M_value(__value) + { } + + constexpr + iota_view(type_identity_t<_Winc> __value, + type_identity_t<_Bound> __bound) + : _M_value(__value), _M_bound(__bound) + { + if constexpr (totally_ordered_with<_Winc, _Bound>) + { + __glibcxx_assert( bool(__value <= __bound) ); + } + } + + constexpr _Iterator + begin() const { return _Iterator{_M_value}; } + + constexpr auto + end() const + { + if constexpr (same_as<_Bound, unreachable_sentinel_t>) + return unreachable_sentinel; + else + return _Sentinel{_M_bound}; + } + + constexpr _Iterator + end() const requires same_as<_Winc, _Bound> + { return _Iterator{_M_bound}; } + + constexpr auto + size() const + requires (same_as<_Winc, _Bound> && __detail::__advanceable<_Winc>) + || (integral<_Winc> && integral<_Bound>) + || sized_sentinel_for<_Bound, _Winc> + { + using __detail::__is_integer_like; + using __detail::__to_unsigned_like; + if constexpr (__is_integer_like<_Winc> && __is_integer_like<_Bound>) + return (_M_value < 0) + ? ((_M_bound < 0) + ? __to_unsigned_like(-_M_value) - __to_unsigned_like(-_M_bound) + : __to_unsigned_like(_M_bound) + __to_unsigned_like(-_M_value)) + : __to_unsigned_like(_M_bound) - __to_unsigned_like(_M_value); + else + return __to_unsigned_like(_M_bound - _M_value); + } + }; + + template + requires (!__detail::__is_integer_like<_Winc> + || !__detail::__is_integer_like<_Bound> + || (__detail::__is_signed_integer_like<_Winc> + == __detail::__is_signed_integer_like<_Bound>)) + iota_view(_Winc, _Bound) -> iota_view<_Winc, _Bound>; + + template + inline constexpr bool + enable_borrowed_range> = true; + +namespace views +{ + template + inline constexpr empty_view<_Tp> empty{}; + + struct _Single + { + template + constexpr auto + operator()(_Tp&& __e) const + { return single_view{std::forward<_Tp>(__e)}; } + }; + + inline constexpr _Single single{}; + + struct _Iota + { + template + constexpr auto + operator()(_Tp&& __e) const + { return iota_view{std::forward<_Tp>(__e)}; } + + template + constexpr auto + operator()(_Tp&& __e, _Up&& __f) const + { return iota_view{std::forward<_Tp>(__e), std::forward<_Up>(__f)}; } + }; + + inline constexpr _Iota iota{}; +} // namespace views + +namespace __detail +{ + struct _Empty { }; + + // Alias for a type that is conditionally present + // (and is an empty type otherwise). + // Data members using this alias should use [[no_unique_address]] so that + // they take no space when not needed. + template + using __maybe_present_t = conditional_t<_Present, _Tp, _Empty>; + + // Alias for a type that is conditionally const. + template + using __maybe_const_t = conditional_t<_Const, const _Tp, _Tp>; + +} // namespace __detail + +namespace views +{ + namespace __adaptor + { + template + inline constexpr auto + __maybe_refwrap(_Tp& __arg) + { return reference_wrapper<_Tp>{__arg}; } + + template + inline constexpr auto + __maybe_refwrap(const _Tp& __arg) + { return reference_wrapper{__arg}; } + + template + inline constexpr decltype(auto) + __maybe_refwrap(_Tp&& __arg) + { return std::forward<_Tp>(__arg); } + + template + struct _RangeAdaptorClosure; + + template + struct _RangeAdaptor + { + protected: + [[no_unique_address]] + __detail::__maybe_present_t, + _Callable> _M_callable; + + public: + constexpr + _RangeAdaptor(const _Callable& = {}) + requires is_default_constructible_v<_Callable> + { } + + constexpr + _RangeAdaptor(_Callable __callable) + requires (!is_default_constructible_v<_Callable>) + : _M_callable(std::move(__callable)) + { } + + template + requires (sizeof...(_Args) >= 1) + constexpr auto + operator()(_Args&&... __args) const + { + // [range.adaptor.object]: If a range adaptor object accepts more + // than one argument, then the following expressions are equivalent: + // + // (1) adaptor(range, args...) + // (2) adaptor(args...)(range) + // (3) range | adaptor(args...) + // + // In this case, adaptor(args...) is a range adaptor closure object. + // + // We handle (1) and (2) here, and (3) is just a special case of a + // more general case already handled by _RangeAdaptorClosure. + if constexpr (is_invocable_v<_Callable, _Args...>) + { + static_assert(sizeof...(_Args) != 1, + "a _RangeAdaptor that accepts only one argument " + "should be defined as a _RangeAdaptorClosure"); + // Here we handle adaptor(range, args...) -- just forward all + // arguments to the underlying adaptor routine. + return _Callable{}(std::forward<_Args>(__args)...); + } + else + { + // Here we handle adaptor(args...)(range). + // Given args..., we return a _RangeAdaptorClosure that takes a + // range argument, such that (2) is equivalent to (1). + // + // We need to be careful about how we capture args... in this + // closure. By using __maybe_refwrap, we capture lvalue + // references by reference (through a reference_wrapper) and + // otherwise capture by value. + auto __closure + = [...__args(__maybe_refwrap(std::forward<_Args>(__args)))] + (_Range&& __r) { + // This static_cast has two purposes: it forwards a + // reference_wrapper capture as a T&, and otherwise + // forwards the captured argument as an rvalue. + return _Callable{}(std::forward<_Range>(__r), + (static_cast>> + (__args))...); + }; + using _ClosureType = decltype(__closure); + return _RangeAdaptorClosure<_ClosureType>(std::move(__closure)); + } + } + }; + + template + _RangeAdaptor(_Callable) -> _RangeAdaptor<_Callable>; + + template + struct _RangeAdaptorClosure : public _RangeAdaptor<_Callable> + { + using _RangeAdaptor<_Callable>::_RangeAdaptor; + + template + requires requires { declval<_Callable>()(declval<_Range>()); } + constexpr auto + operator()(_Range&& __r) const + { + if constexpr (is_default_constructible_v<_Callable>) + return _Callable{}(std::forward<_Range>(__r)); + else + return this->_M_callable(std::forward<_Range>(__r)); + } + + template + requires requires { declval<_Callable>()(declval<_Range>()); } + friend constexpr auto + operator|(_Range&& __r, const _RangeAdaptorClosure& __o) + { return __o(std::forward<_Range>(__r)); } + + template + friend constexpr auto + operator|(const _RangeAdaptorClosure<_Tp>& __x, + const _RangeAdaptorClosure& __y) + { + if constexpr (is_default_constructible_v<_Tp> + && is_default_constructible_v<_Callable>) + { + auto __closure = [] (_Up&& __e) { + return std::forward<_Up>(__e) | decltype(__x){} | decltype(__y){}; + }; + return _RangeAdaptorClosure(__closure); + } + else if constexpr (is_default_constructible_v<_Tp> + && !is_default_constructible_v<_Callable>) + { + auto __closure = [__y] (_Up&& __e) { + return std::forward<_Up>(__e) | decltype(__x){} | __y; + }; + return _RangeAdaptorClosure(__closure); + } + else if constexpr (!is_default_constructible_v<_Tp> + && is_default_constructible_v<_Callable>) + { + auto __closure = [__x] (_Up&& __e) { + return std::forward<_Up>(__e) | __x | decltype(__y){}; + }; + return _RangeAdaptorClosure(__closure); + } + else + { + auto __closure = [__x, __y] (_Up&& __e) { + return std::forward<_Up>(__e) | __x | __y; + }; + return _RangeAdaptorClosure(__closure); + } + } + }; + + template + _RangeAdaptorClosure(_Callable) -> _RangeAdaptorClosure<_Callable>; + } // namespace __adaptor +} // namespace views + + template requires is_object_v<_Range> + class ref_view : public view_interface> + { + private: + _Range* _M_r = nullptr; + + static void _S_fun(_Range&); // not defined + static void _S_fun(_Range&&) = delete; + + public: + constexpr + ref_view() noexcept = default; + + template<__detail::__not_same_as _Tp> + requires convertible_to<_Tp, _Range&> + && requires { _S_fun(declval<_Tp>()); } + constexpr + ref_view(_Tp&& __t) + : _M_r(std::__addressof(static_cast<_Range&>(std::forward<_Tp>(__t)))) + { } + + constexpr _Range& + base() const + { return *_M_r; } + + constexpr iterator_t<_Range> + begin() const + { return ranges::begin(*_M_r); } + + constexpr sentinel_t<_Range> + end() const + { return ranges::end(*_M_r); } + + constexpr bool + empty() const requires requires { ranges::empty(*_M_r); } + { return ranges::empty(*_M_r); } + + constexpr auto + size() const requires sized_range<_Range> + { return ranges::size(*_M_r); } + + constexpr auto + data() const requires contiguous_range<_Range> + { return ranges::data(*_M_r); } + }; + + template + ref_view(_Range&) -> ref_view<_Range>; + + template + inline constexpr bool enable_borrowed_range> = true; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptorClosure all + = [] (_Range&& __r) + { + if constexpr (view>) + return std::forward<_Range>(__r); + else if constexpr (requires { ref_view{std::forward<_Range>(__r)}; }) + return ref_view{std::forward<_Range>(__r)}; + else + return subrange{std::forward<_Range>(__r)}; + }; + + template + using all_t = decltype(all(std::declval<_Range>())); + + } // namespace views + + // XXX: the following algos are copied from ranges_algo.h to avoid a circular + // dependency with that header. + namespace __detail + { + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr _Iter + find_if(_Iter __first, _Sent __last, _Pred __pred, _Proj __proj = {}) + { + while (__first != __last + && !(bool)std::__invoke(__pred, std::__invoke(__proj, *__first))) + ++__first; + return __first; + } + + template _Sent, + typename _Proj = identity, + indirect_unary_predicate> _Pred> + constexpr _Iter + find_if_not(_Iter __first, _Sent __last, _Pred __pred, _Proj __proj = {}) + { + while (__first != __last + && (bool)std::__invoke(__pred, std::__invoke(__proj, *__first))) + ++__first; + return __first; + } + + template> + _Comp = ranges::less> + constexpr const _Tp& + min(const _Tp& __a, const _Tp& __b, _Comp __comp = {}, _Proj __proj = {}) + { + if (std::__invoke(std::move(__comp), + std::__invoke(__proj, __b), + std::__invoke(__proj, __a))) + return __b; + else + return __a; + } + + template _Sent1, + input_iterator _Iter2, sentinel_for<_Iter2> _Sent2, + typename _Pred = ranges::equal_to, + typename _Proj1 = identity, typename _Proj2 = identity> + requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2> + constexpr pair<_Iter1, _Iter2> + mismatch(_Iter1 __first1, _Sent1 __last1, _Iter2 __first2, _Sent2 __last2, + _Pred __pred = {}, _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) + { + while (__first1 != __last1 && __first2 != __last2 + && (bool)std::__invoke(__pred, + std::__invoke(__proj1, *__first1), + std::__invoke(__proj2, *__first2))) + { + ++__first1; + ++__first2; + } + return { std::move(__first1), std::move(__first2) }; + } + } // namespace __detail + + namespace __detail + { + template + struct _CachedPosition + { + constexpr bool + _M_has_value() const + { return false; } + + constexpr iterator_t<_Range> + _M_get(const _Range&) const + { + __glibcxx_assert(false); + return {}; + } + + constexpr void + _M_set(const _Range&, const iterator_t<_Range>&) const + { } + }; + + template + struct _CachedPosition<_Range> + { + private: + iterator_t<_Range> _M_iter{}; + + public: + constexpr bool + _M_has_value() const + { return _M_iter != iterator_t<_Range>{}; } + + constexpr iterator_t<_Range> + _M_get(const _Range&) const + { + __glibcxx_assert(_M_has_value()); + return _M_iter; + } + + constexpr void + _M_set(const _Range&, const iterator_t<_Range>& __it) + { + __glibcxx_assert(!_M_has_value()); + _M_iter = __it; + } + }; + + template + requires (sizeof(range_difference_t<_Range>) + <= sizeof(iterator_t<_Range>)) + struct _CachedPosition<_Range> + { + private: + range_difference_t<_Range> _M_offset = -1; + + public: + constexpr bool + _M_has_value() const + { return _M_offset >= 0; } + + constexpr iterator_t<_Range> + _M_get(_Range& __r) const + { + __glibcxx_assert(_M_has_value()); + return ranges::begin(__r) + _M_offset; + } + + constexpr void + _M_set(_Range& __r, const iterator_t<_Range>& __it) + { + __glibcxx_assert(!_M_has_value()); + _M_offset = __it - ranges::begin(__r); + } + }; + + } // namespace __detail + + template> _Pred> + requires view<_Vp> && is_object_v<_Pred> + class filter_view : public view_interface> + { + private: + struct _Sentinel; + + struct _Iterator + { + private: + static constexpr auto + _S_iter_concept() + { + if constexpr (bidirectional_range<_Vp>) + return bidirectional_iterator_tag{}; + else if constexpr (forward_range<_Vp>) + return forward_iterator_tag{}; + else + return input_iterator_tag{}; + } + + static constexpr auto + _S_iter_cat() + { + using _Cat = typename iterator_traits<_Vp_iter>::iterator_category; + if constexpr (derived_from<_Cat, bidirectional_iterator_tag>) + return bidirectional_iterator_tag{}; + else if constexpr (derived_from<_Cat, forward_iterator_tag>) + return forward_iterator_tag{}; + else + return _Cat{}; + } + + friend filter_view; + + using _Vp_iter = iterator_t<_Vp>; + + _Vp_iter _M_current = _Vp_iter(); + filter_view* _M_parent = nullptr; + + public: + using iterator_concept = decltype(_S_iter_concept()); + using iterator_category = decltype(_S_iter_cat()); + using value_type = range_value_t<_Vp>; + using difference_type = range_difference_t<_Vp>; + + _Iterator() = default; + + constexpr + _Iterator(filter_view& __parent, _Vp_iter __current) + : _M_current(std::move(__current)), + _M_parent(std::__addressof(__parent)) + { } + + constexpr _Vp_iter + base() const & + requires copyable<_Vp_iter> + { return _M_current; } + + constexpr _Vp_iter + base() && + { return std::move(_M_current); } + + constexpr range_reference_t<_Vp> + operator*() const + { return *_M_current; } + + constexpr _Vp_iter + operator->() const + requires __detail::__has_arrow<_Vp_iter> + && copyable<_Vp_iter> + { return _M_current; } + + constexpr _Iterator& + operator++() + { + _M_current = __detail::find_if(std::move(++_M_current), + ranges::end(_M_parent->_M_base), + std::ref(*_M_parent->_M_pred)); + return *this; + } + + constexpr void + operator++(int) + { ++*this; } + + constexpr _Iterator + operator++(int) requires forward_range<_Vp> + { + auto __tmp = *this; + ++*this; + return __tmp; + } + + constexpr _Iterator& + operator--() requires bidirectional_range<_Vp> + { + do + --_M_current; + while (!std::__invoke(*_M_parent->_M_pred, *_M_current)); + return *this; + } + + constexpr _Iterator + operator--(int) requires bidirectional_range<_Vp> + { + auto __tmp = *this; + --*this; + return __tmp; + } + + friend constexpr bool + operator==(const _Iterator& __x, const _Iterator& __y) + requires equality_comparable<_Vp_iter> + { return __x._M_current == __y._M_current; } + + friend constexpr range_rvalue_reference_t<_Vp> + iter_move(const _Iterator& __i) + noexcept(noexcept(ranges::iter_move(__i._M_current))) + { return ranges::iter_move(__i._M_current); } + + friend constexpr void + iter_swap(const _Iterator& __x, const _Iterator& __y) + noexcept(noexcept(ranges::iter_swap(__x._M_current, __y._M_current))) + requires indirectly_swappable<_Vp_iter> + { ranges::iter_swap(__x._M_current, __y._M_current); } + }; + + struct _Sentinel + { + private: + sentinel_t<_Vp> _M_end = sentinel_t<_Vp>(); + + constexpr bool + __equal(const _Iterator& __i) const + { return __i._M_current == _M_end; } + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(filter_view& __parent) + : _M_end(ranges::end(__parent._M_base)) + { } + + constexpr sentinel_t<_Vp> + base() const + { return _M_end; } + + friend constexpr bool + operator==(const _Iterator& __x, const _Sentinel& __y) + { return __y.__equal(__x); } + }; + + _Vp _M_base = _Vp(); + __detail::__box<_Pred> _M_pred; + [[no_unique_address]] __detail::_CachedPosition<_Vp> _M_cached_begin; + + public: + filter_view() = default; + + constexpr + filter_view(_Vp __base, _Pred __pred) + : _M_base(std::move(__base)), _M_pred(std::move(__pred)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr const _Pred& + pred() const + { return *_M_pred; } + + constexpr _Iterator + begin() + { + if (_M_cached_begin._M_has_value()) + return {*this, _M_cached_begin._M_get(_M_base)}; + + __glibcxx_assert(_M_pred.has_value()); + auto __it = __detail::find_if(ranges::begin(_M_base), + ranges::end(_M_base), + std::ref(*_M_pred)); + _M_cached_begin._M_set(_M_base, __it); + return {*this, std::move(__it)}; + } + + constexpr auto + end() + { + if constexpr (common_range<_Vp>) + return _Iterator{*this, ranges::end(_M_base)}; + else + return _Sentinel{*this}; + } + }; + + template + filter_view(_Range&&, _Pred) -> filter_view, _Pred>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor filter + = [] (_Range&& __r, _Pred&& __p) + { + return filter_view{std::forward<_Range>(__r), std::forward<_Pred>(__p)}; + }; + } // namespace views + + template + requires view<_Vp> && is_object_v<_Fp> + && regular_invocable<_Fp&, range_reference_t<_Vp>> + && std::__detail::__can_reference>> + class transform_view : public view_interface> + { + private: + template + struct _Sentinel; + + template + struct _Iterator + { + private: + using _Parent = __detail::__maybe_const_t<_Const, transform_view>; + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + static constexpr auto + _S_iter_concept() + { + if constexpr (random_access_range<_Vp>) + return random_access_iterator_tag{}; + else if constexpr (bidirectional_range<_Vp>) + return bidirectional_iterator_tag{}; + else if constexpr (forward_range<_Vp>) + return forward_iterator_tag{}; + else + return input_iterator_tag{}; + } + + static constexpr auto + _S_iter_cat() + { + using _Res = invoke_result_t<_Fp&, range_reference_t<_Base>>; + if constexpr (is_lvalue_reference_v<_Res>) + { + using _Cat + = typename iterator_traits<_Base_iter>::iterator_category; + if constexpr (derived_from<_Cat, contiguous_iterator_tag>) + return random_access_iterator_tag{}; + else + return _Cat{}; + } + else + return input_iterator_tag{}; + } + + using _Base_iter = iterator_t<_Base>; + + _Base_iter _M_current = _Base_iter(); + _Parent* _M_parent = nullptr; + + public: + using iterator_concept = decltype(_S_iter_concept()); + using iterator_category = decltype(_S_iter_cat()); + using value_type + = remove_cvref_t>>; + using difference_type = range_difference_t<_Base>; + + _Iterator() = default; + + constexpr + _Iterator(_Parent& __parent, _Base_iter __current) + : _M_current(std::move(__current)), + _M_parent(std::__addressof(__parent)) + { } + + constexpr + _Iterator(_Iterator __i) + requires _Const + && convertible_to, _Base_iter> + : _M_current(std::move(__i._M_current)), _M_parent(__i._M_parent) + { } + + constexpr _Base_iter + base() const & + requires copyable<_Base_iter> + { return _M_current; } + + constexpr _Base_iter + base() && + { return std::move(_M_current); } + + constexpr decltype(auto) + operator*() const + noexcept(noexcept(std::__invoke(*_M_parent->_M_fun, *_M_current))) + { return std::__invoke(*_M_parent->_M_fun, *_M_current); } + + constexpr _Iterator& + operator++() + { + ++_M_current; + return *this; + } + + constexpr void + operator++(int) + { ++_M_current; } + + constexpr _Iterator + operator++(int) requires forward_range<_Base> + { + auto __tmp = *this; + ++*this; + return __tmp; + } + + constexpr _Iterator& + operator--() requires bidirectional_range<_Base> + { + --_M_current; + return *this; + } + + constexpr _Iterator + operator--(int) requires bidirectional_range<_Base> + { + auto __tmp = *this; + --*this; + return __tmp; + } + + constexpr _Iterator& + operator+=(difference_type __n) requires random_access_range<_Base> + { + _M_current += __n; + return *this; + } + + constexpr _Iterator& + operator-=(difference_type __n) requires random_access_range<_Base> + { + _M_current -= __n; + return *this; + } + + constexpr decltype(auto) + operator[](difference_type __n) const + requires random_access_range<_Base> + { return std::__invoke(*_M_parent->_M_fun, _M_current[__n]); } + + friend constexpr bool + operator==(const _Iterator& __x, const _Iterator& __y) + requires equality_comparable<_Base_iter> + { return __x._M_current == __y._M_current; } + + friend constexpr bool + operator<(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __x._M_current < __y._M_current; } + + friend constexpr bool + operator>(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __y < __x; } + + friend constexpr bool + operator<=(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return !(__y < __x); } + + friend constexpr bool + operator>=(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return !(__x < __y); } + +#ifdef __cpp_lib_three_way_comparison + friend constexpr auto + operator<=>(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + && three_way_comparable<_Base_iter> + { return __x._M_current <=> __y._M_current; } +#endif + + friend constexpr _Iterator + operator+(_Iterator __i, difference_type __n) + requires random_access_range<_Base> + { return {*__i._M_parent, __i._M_current + __n}; } + + friend constexpr _Iterator + operator+(difference_type __n, _Iterator __i) + requires random_access_range<_Base> + { return {*__i._M_parent, __i._M_current + __n}; } + + friend constexpr _Iterator + operator-(_Iterator __i, difference_type __n) + requires random_access_range<_Base> + { return {*__i._M_parent, __i._M_current - __n}; } + + friend constexpr difference_type + operator-(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __x._M_current - __y._M_current; } + + friend constexpr decltype(auto) + iter_move(const _Iterator& __i) noexcept(noexcept(*__i)) + { + if constexpr (is_lvalue_reference_v) + return std::move(*__i); + else + return *__i; + } + + friend constexpr void + iter_swap(const _Iterator& __x, const _Iterator& __y) + noexcept(noexcept(ranges::iter_swap(__x._M_current, __y._M_current))) + requires indirectly_swappable<_Base_iter> + { return ranges::iter_swap(__x._M_current, __y._M_current); } + + friend _Iterator; + template friend struct _Sentinel; + }; + + template + struct _Sentinel + { + private: + using _Parent = __detail::__maybe_const_t<_Const, transform_view>; + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + template + constexpr auto + __distance_from(const _Iterator<_Const2>& __i) const + { return _M_end - __i._M_current; } + + template + constexpr bool + __equal(const _Iterator<_Const2>& __i) const + { return __i._M_current == _M_end; } + + sentinel_t<_Base> _M_end = sentinel_t<_Base>(); + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(sentinel_t<_Base> __end) + : _M_end(__end) + { } + + constexpr + _Sentinel(_Sentinel __i) + requires _Const + && convertible_to, sentinel_t<_Base>> + : _M_end(std::move(__i._M_end)) + { } + + constexpr sentinel_t<_Base> + base() const + { return _M_end; } + + template + requires sentinel_for, + iterator_t<__detail::__maybe_const_t<_Const2, _Vp>>> + friend constexpr bool + operator==(const _Iterator<_Const2>& __x, const _Sentinel& __y) + { return __y.__equal(__x); } + + template> + requires sized_sentinel_for, iterator_t<_Base2>> + friend constexpr range_difference_t<_Base2> + operator-(const _Iterator<_Const2>& __x, const _Sentinel& __y) + { return -__y.__distance_from(__x); } + + template> + requires sized_sentinel_for, iterator_t<_Base2>> + friend constexpr range_difference_t<_Base2> + operator-(const _Sentinel& __y, const _Iterator<_Const2>& __x) + { return __y.__distance_from(__x); } + + friend _Sentinel; + }; + + _Vp _M_base = _Vp(); + __detail::__box<_Fp> _M_fun; + + public: + transform_view() = default; + + constexpr + transform_view(_Vp __base, _Fp __fun) + : _M_base(std::move(__base)), _M_fun(std::move(__fun)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base ; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr _Iterator + begin() + { return _Iterator{*this, ranges::begin(_M_base)}; } + + constexpr _Iterator + begin() const + requires range + && regular_invocable> + { return _Iterator{*this, ranges::begin(_M_base)}; } + + constexpr _Sentinel + end() + { return _Sentinel{ranges::end(_M_base)}; } + + constexpr _Iterator + end() requires common_range<_Vp> + { return _Iterator{*this, ranges::end(_M_base)}; } + + constexpr _Sentinel + end() const + requires range + && regular_invocable> + { return _Sentinel{ranges::end(_M_base)}; } + + constexpr _Iterator + end() const + requires common_range + && regular_invocable> + { return _Iterator{*this, ranges::end(_M_base)}; } + + constexpr auto + size() requires sized_range<_Vp> + { return ranges::size(_M_base); } + + constexpr auto + size() const requires sized_range + { return ranges::size(_M_base); } + }; + + template + transform_view(_Range&&, _Fp) -> transform_view, _Fp>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor transform + = [] (_Range&& __r, _Fp&& __f) + { + return transform_view{std::forward<_Range>(__r), std::forward<_Fp>(__f)}; + }; + } // namespace views + + template + class take_view : public view_interface> + { + private: + template + struct _Sentinel + { + private: + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + using _CI = counted_iterator>; + + sentinel_t<_Base> _M_end = sentinel_t<_Base>(); + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(sentinel_t<_Base> __end) + : _M_end(__end) + { } + + constexpr + _Sentinel(_Sentinel __s) + requires _Const && convertible_to, sentinel_t<_Base>> + : _M_end(std::move(__s._M_end)) + { } + + constexpr sentinel_t<_Base> + base() const + { return _M_end; } + + friend constexpr bool operator==(const _CI& __y, const _Sentinel& __x) + { return __y.count() == 0 || __y.base() == __x._M_end; } + + friend _Sentinel; + }; + + _Vp _M_base = _Vp(); + range_difference_t<_Vp> _M_count = 0; + + public: + take_view() = default; + + constexpr + take_view(_Vp base, range_difference_t<_Vp> __count) + : _M_base(std::move(base)), _M_count(std::move(__count)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr auto + begin() requires (!__detail::__simple_view<_Vp>) + { + if constexpr (sized_range<_Vp>) + { + if constexpr (random_access_range<_Vp>) + return ranges::begin(_M_base); + else + { + auto __sz = size(); + return counted_iterator{ranges::begin(_M_base), __sz}; + } + } + else + return counted_iterator{ranges::begin(_M_base), _M_count}; + } + + constexpr auto + begin() const requires range + { + if constexpr (sized_range) + { + if constexpr (random_access_range) + return ranges::begin(_M_base); + else + { + auto __sz = size(); + return counted_iterator{ranges::begin(_M_base), __sz}; + } + } + else + return counted_iterator{ranges::begin(_M_base), _M_count}; + } + + constexpr auto + end() requires (!__detail::__simple_view<_Vp>) + { + if constexpr (sized_range<_Vp>) + { + if constexpr (random_access_range<_Vp>) + return ranges::begin(_M_base) + size(); + else + return default_sentinel; + } + else + return _Sentinel{ranges::end(_M_base)}; + } + + constexpr auto + end() const requires range + { + if constexpr (sized_range) + { + if constexpr (random_access_range) + return ranges::begin(_M_base) + size(); + else + return default_sentinel; + } + else + return _Sentinel{ranges::end(_M_base)}; + } + + constexpr auto + size() requires sized_range<_Vp> + { + auto __n = ranges::size(_M_base); + return __detail::min(__n, static_cast(_M_count)); + } + + constexpr auto + size() const requires sized_range + { + auto __n = ranges::size(_M_base); + return __detail::min(__n, static_cast(_M_count)); + } + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3447. Deduction guides for take_view and drop_view have different + // constraints + template + take_view(_Range&&, range_difference_t<_Range>) + -> take_view>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor take + = [] (_Range&& __r, _Tp&& __n) + { + return take_view{std::forward<_Range>(__r), std::forward<_Tp>(__n)}; + }; + } // namespace views + + template + requires input_range<_Vp> && is_object_v<_Pred> + && indirect_unary_predicate> + class take_while_view : public view_interface> + { + template + struct _Sentinel + { + private: + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + sentinel_t<_Base> _M_end = sentinel_t<_Base>(); + const _Pred* _M_pred = nullptr; + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(sentinel_t<_Base> __end, const _Pred* __pred) + : _M_end(__end), _M_pred(__pred) + { } + + constexpr + _Sentinel(_Sentinel __s) + requires _Const && convertible_to, sentinel_t<_Base>> + : _M_end(__s._M_end), _M_pred(__s._M_pred) + { } + + constexpr sentinel_t<_Base> + base() const { return _M_end; } + + friend constexpr bool + operator==(const iterator_t<_Base>& __x, const _Sentinel& __y) + { return __y._M_end == __x || !std::__invoke(*__y._M_pred, *__x); } + + friend _Sentinel; + }; + + _Vp _M_base = _Vp(); + __detail::__box<_Pred> _M_pred; + + public: + take_while_view() = default; + + constexpr + take_while_view(_Vp base, _Pred __pred) + : _M_base(std::move(base)), _M_pred(std::move(__pred)) + { + } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr const _Pred& + pred() const + { return *_M_pred; } + + constexpr auto + begin() requires (!__detail::__simple_view<_Vp>) + { return ranges::begin(_M_base); } + + constexpr auto + begin() const requires range + && indirect_unary_predicate> + { return ranges::begin(_M_base); } + + constexpr auto + end() requires (!__detail::__simple_view<_Vp>) + { return _Sentinel(ranges::end(_M_base), + std::__addressof(*_M_pred)); } + + constexpr auto + end() const requires range + && indirect_unary_predicate> + { return _Sentinel(ranges::end(_M_base), + std::__addressof(*_M_pred)); } + }; + + template + take_while_view(_Range&&, _Pred) + -> take_while_view, _Pred>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor take_while + = [] (_Range&& __r, _Pred&& __p) + { + return take_while_view{std::forward<_Range>(__r), std::forward<_Pred>(__p)}; + }; + } // namespace views + + template + class drop_view : public view_interface> + { + private: + _Vp _M_base = _Vp(); + range_difference_t<_Vp> _M_count = 0; + + static constexpr bool _S_needs_cached_begin = !random_access_range<_Vp>; + [[no_unique_address]] + __detail::__maybe_present_t<_S_needs_cached_begin, + __detail::_CachedPosition<_Vp>> + _M_cached_begin; + + public: + drop_view() = default; + + constexpr + drop_view(_Vp __base, range_difference_t<_Vp> __count) + : _M_base(std::move(__base)), _M_count(__count) + { __glibcxx_assert(__count >= 0); } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr auto + begin() requires (!(__detail::__simple_view<_Vp> + && random_access_range<_Vp>)) + { + if constexpr (_S_needs_cached_begin) + if (_M_cached_begin._M_has_value()) + return _M_cached_begin._M_get(_M_base); + + auto __it = ranges::next(ranges::begin(_M_base), + _M_count, ranges::end(_M_base)); + if constexpr (_S_needs_cached_begin) + _M_cached_begin._M_set(_M_base, __it); + return __it; + } + + constexpr auto + begin() const requires random_access_range + { + return ranges::next(ranges::begin(_M_base), _M_count, + ranges::end(_M_base)); + } + + constexpr auto + end() requires (!__detail::__simple_view<_Vp>) + { return ranges::end(_M_base); } + + constexpr auto + end() const requires range + { return ranges::end(_M_base); } + + constexpr auto + size() requires sized_range<_Vp> + { + const auto __s = ranges::size(_M_base); + const auto __c = static_cast(_M_count); + return __s < __c ? 0 : __s - __c; + } + + constexpr auto + size() const requires sized_range + { + const auto __s = ranges::size(_M_base); + const auto __c = static_cast(_M_count); + return __s < __c ? 0 : __s - __c; + } + }; + + template + drop_view(_Range&&, range_difference_t<_Range>) + -> drop_view>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor drop + = [] (_Range&& __r, _Tp&& __n) + { + return drop_view{std::forward<_Range>(__r), std::forward<_Tp>(__n)}; + }; + } // namespace views + + template + requires input_range<_Vp> && is_object_v<_Pred> + && indirect_unary_predicate> + class drop_while_view : public view_interface> + { + private: + _Vp _M_base = _Vp(); + __detail::__box<_Pred> _M_pred; + [[no_unique_address]] __detail::_CachedPosition<_Vp> _M_cached_begin; + + public: + drop_while_view() = default; + + constexpr + drop_while_view(_Vp __base, _Pred __pred) + : _M_base(std::move(__base)), _M_pred(std::move(__pred)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr const _Pred& + pred() const + { return *_M_pred; } + + constexpr auto + begin() + { + if (_M_cached_begin._M_has_value()) + return _M_cached_begin._M_get(_M_base); + + auto __it = __detail::find_if_not(ranges::begin(_M_base), + ranges::end(_M_base), + std::cref(*_M_pred)); + _M_cached_begin._M_set(_M_base, __it); + return __it; + } + + constexpr auto + end() + { return ranges::end(_M_base); } + }; + + template + drop_while_view(_Range&&, _Pred) + -> drop_while_view, _Pred>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor drop_while + = [] (_Range&& __r, _Pred&& __p) + { + return drop_while_view{std::forward<_Range>(__r), + std::forward<_Pred>(__p)}; + }; + } // namespace views + + template + requires view<_Vp> && input_range> + && (is_reference_v> + || view>) + class join_view : public view_interface> + { + private: + using _InnerRange = range_reference_t<_Vp>; + + template + struct _Sentinel; + + template + struct _Iterator + { + private: + using _Parent = __detail::__maybe_const_t<_Const, join_view>; + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + static constexpr bool _S_ref_is_glvalue + = is_reference_v>; + + constexpr void + _M_satisfy() + { + auto __update_inner = [this] (range_reference_t<_Base> __x) -> auto& + { + if constexpr (_S_ref_is_glvalue) + return __x; + else + return (_M_parent->_M_inner = views::all(std::move(__x))); + }; + + for (; _M_outer != ranges::end(_M_parent->_M_base); ++_M_outer) + { + auto& inner = __update_inner(*_M_outer); + _M_inner = ranges::begin(inner); + if (_M_inner != ranges::end(inner)) + return; + } + + if constexpr (_S_ref_is_glvalue) + _M_inner = _Inner_iter(); + } + + static constexpr auto + _S_iter_concept() + { + if constexpr (_S_ref_is_glvalue + && bidirectional_range<_Base> + && bidirectional_range>) + return bidirectional_iterator_tag{}; + else if constexpr (_S_ref_is_glvalue + && forward_range<_Base> + && forward_range>) + return forward_iterator_tag{}; + else + return input_iterator_tag{}; + } + + static constexpr auto + _S_iter_cat() + { + using _OuterCat + = typename iterator_traits<_Outer_iter>::iterator_category; + using _InnerCat + = typename iterator_traits<_Inner_iter>::iterator_category; + if constexpr (_S_ref_is_glvalue + && derived_from<_OuterCat, bidirectional_iterator_tag> + && derived_from<_InnerCat, bidirectional_iterator_tag>) + return bidirectional_iterator_tag{}; + else if constexpr (_S_ref_is_glvalue + && derived_from<_OuterCat, forward_iterator_tag> + && derived_from<_InnerCat, forward_iterator_tag>) + return forward_iterator_tag{}; + else if constexpr (derived_from<_OuterCat, input_iterator_tag> + && derived_from<_InnerCat, input_iterator_tag>) + return input_iterator_tag{}; + else + return output_iterator_tag{}; + } + + using _Outer_iter = iterator_t<_Base>; + using _Inner_iter = iterator_t>; + + _Outer_iter _M_outer = _Outer_iter(); + _Inner_iter _M_inner = _Inner_iter(); + _Parent* _M_parent = nullptr; + + public: + using iterator_concept = decltype(_S_iter_concept()); + using iterator_category = decltype(_S_iter_cat()); + using value_type = range_value_t>; + using difference_type + = common_type_t, + range_difference_t>>; + + _Iterator() = default; + + constexpr + _Iterator(_Parent& __parent, _Outer_iter __outer) + : _M_outer(std::move(__outer)), + _M_parent(std::__addressof(__parent)) + { _M_satisfy(); } + + constexpr + _Iterator(_Iterator __i) + requires _Const + && convertible_to, _Outer_iter> + && convertible_to, _Inner_iter> + : _M_outer(std::move(__i._M_outer)), _M_inner(__i._M_inner), + _M_parent(__i._M_parent) + { } + + constexpr decltype(auto) + operator*() const + { return *_M_inner; } + + constexpr _Outer_iter + operator->() const + requires __detail::__has_arrow<_Outer_iter> + && copyable<_Outer_iter> + { return _M_inner; } + + constexpr _Iterator& + operator++() + { + auto&& __inner_range = [this] () -> decltype(auto) { + if constexpr (_S_ref_is_glvalue) + return *_M_outer; + else + return _M_parent->_M_inner; + }(); + if (++_M_inner == ranges::end(__inner_range)) + { + ++_M_outer; + _M_satisfy(); + } + return *this; + } + + constexpr void + operator++(int) + { ++*this; } + + constexpr _Iterator + operator++(int) + requires _S_ref_is_glvalue && forward_range<_Base> + && forward_range> + { + auto __tmp = *this; + ++*this; + return __tmp; + } + + constexpr _Iterator& + operator--() + requires _S_ref_is_glvalue && bidirectional_range<_Base> + && bidirectional_range> + && common_range> + { + if (_M_outer == ranges::end(_M_parent->_M_base)) + _M_inner = ranges::end(*--_M_outer); + while (_M_inner == ranges::begin(*_M_outer)) + _M_inner = ranges::end(*--_M_outer); + --_M_inner; + return *this; + } + + constexpr _Iterator + operator--(int) + requires _S_ref_is_glvalue && bidirectional_range<_Base> + && bidirectional_range> + && common_range> + { + auto __tmp = *this; + --*this; + return __tmp; + } + + friend constexpr bool + operator==(const _Iterator& __x, const _Iterator& __y) + requires _S_ref_is_glvalue + && equality_comparable<_Outer_iter> + && equality_comparable<_Inner_iter> + { + return (__x._M_outer == __y._M_outer + && __x._M_inner == __y._M_inner); + } + + friend constexpr decltype(auto) + iter_move(const _Iterator& __i) + noexcept(noexcept(ranges::iter_move(__i._M_inner))) + { return ranges::iter_move(__i._M_inner); } + + friend constexpr void + iter_swap(const _Iterator& __x, const _Iterator& __y) + noexcept(noexcept(ranges::iter_swap(__x._M_inner, __y._M_inner))) + { return ranges::iter_swap(__x._M_inner, __y._M_inner); } + + friend _Iterator; + template friend struct _Sentinel; + }; + + template + struct _Sentinel + { + private: + using _Parent = __detail::__maybe_const_t<_Const, join_view>; + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + template + constexpr bool + __equal(const _Iterator<_Const2>& __i) const + { return __i._M_outer == _M_end; } + + sentinel_t<_Base> _M_end = sentinel_t<_Base>(); + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(_Parent& __parent) + : _M_end(ranges::end(__parent._M_base)) + { } + + constexpr + _Sentinel(_Sentinel __s) + requires _Const && convertible_to, sentinel_t<_Base>> + : _M_end(std::move(__s._M_end)) + { } + + template + requires sentinel_for, + iterator_t<__detail::__maybe_const_t<_Const2, _Vp>>> + friend constexpr bool + operator==(const _Iterator<_Const2>& __x, const _Sentinel& __y) + { return __y.__equal(__x); } + + friend _Sentinel; + }; + + _Vp _M_base = _Vp(); + + // XXX: _M_inner is "present only when !is_reference_v<_InnerRange>" + [[no_unique_address]] + __detail::__maybe_present_t, + views::all_t<_InnerRange>> _M_inner; + + public: + join_view() = default; + + constexpr explicit + join_view(_Vp __base) + : _M_base(std::move(__base)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr auto + begin() + { + constexpr bool __use_const + = (__detail::__simple_view<_Vp> + && is_reference_v>); + return _Iterator<__use_const>{*this, ranges::begin(_M_base)}; + } + + constexpr auto + begin() const + requires input_range + && is_reference_v> + { + return _Iterator{*this, ranges::begin(_M_base)}; + } + + constexpr auto + end() + { + if constexpr (forward_range<_Vp> && is_reference_v<_InnerRange> + && forward_range<_InnerRange> + && common_range<_Vp> && common_range<_InnerRange>) + return _Iterator<__detail::__simple_view<_Vp>>{*this, + ranges::end(_M_base)}; + else + return _Sentinel<__detail::__simple_view<_Vp>>{*this}; + } + + constexpr auto + end() const + requires input_range + && is_reference_v> + { + if constexpr (forward_range + && is_reference_v> + && forward_range> + && common_range + && common_range>) + return _Iterator{*this, ranges::end(_M_base)}; + else + return _Sentinel{*this}; + } + }; + + template + explicit join_view(_Range&&) -> join_view>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptorClosure join + = [] (_Range&& __r) + { + return join_view{std::forward<_Range>(__r)}; + }; + } // namespace views + + namespace __detail + { + template + struct __require_constant; + + template + concept __tiny_range = sized_range<_Range> + && requires + { typename __require_constant::size()>; } + && (remove_reference_t<_Range>::size() <= 1); + } + + template + requires view<_Vp> && view<_Pattern> + && indirectly_comparable, iterator_t<_Pattern>, + ranges::equal_to> + && (forward_range<_Vp> || __detail::__tiny_range<_Pattern>) + class split_view : public view_interface> + { + private: + template + struct _InnerIter; + + template + struct _OuterIter + { + private: + using _Parent = __detail::__maybe_const_t<_Const, split_view>; + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + constexpr bool + __at_end() const + { return __current() == ranges::end(_M_parent->_M_base); } + + // [range.split.outer] p1 + // Many of the following specifications refer to the notional member + // current of outer-iterator. current is equivalent to current_ if + // V models forward_range, and parent_->current_ otherwise. + constexpr auto& + __current() noexcept + { + if constexpr (forward_range<_Vp>) + return _M_current; + else + return _M_parent->_M_current; + } + + constexpr auto& + __current() const noexcept + { + if constexpr (forward_range<_Vp>) + return _M_current; + else + return _M_parent->_M_current; + } + + _Parent* _M_parent = nullptr; + + // XXX: _M_current is present only if "V models forward_range" + [[no_unique_address]] + __detail::__maybe_present_t, + iterator_t<_Base>> _M_current; + + public: + using iterator_concept = conditional_t, + forward_iterator_tag, + input_iterator_tag>; + using iterator_category = input_iterator_tag; + using difference_type = range_difference_t<_Base>; + + struct value_type : view_interface + { + private: + _OuterIter _M_i = _OuterIter(); + + public: + value_type() = default; + + constexpr explicit + value_type(_OuterIter __i) + : _M_i(std::move(__i)) + { } + + constexpr _InnerIter<_Const> + begin() const + requires copyable<_OuterIter> + { return _InnerIter<_Const>{_M_i}; } + + constexpr _InnerIter<_Const> + begin() + requires (!copyable<_OuterIter>) + { return _InnerIter<_Const>{std::move(_M_i)}; } + + constexpr default_sentinel_t + end() const + { return default_sentinel; } + }; + + _OuterIter() = default; + + constexpr explicit + _OuterIter(_Parent& __parent) requires (!forward_range<_Base>) + : _M_parent(std::__addressof(__parent)) + { } + + constexpr + _OuterIter(_Parent& __parent, iterator_t<_Base> __current) + requires forward_range<_Base> + : _M_parent(std::__addressof(__parent)), + _M_current(std::move(__current)) + { } + + constexpr + _OuterIter(_OuterIter __i) + requires _Const + && convertible_to, iterator_t<_Base>> + : _M_parent(__i._M_parent), _M_current(std::move(__i._M_current)) + { } + + constexpr value_type + operator*() const + { return value_type{*this}; } + + constexpr _OuterIter& + operator++() + { + const auto __end = ranges::end(_M_parent->_M_base); + if (__current() == __end) + return *this; + const auto [__pbegin, __pend] = subrange{_M_parent->_M_pattern}; + if (__pbegin == __pend) + ++__current(); + else + do + { + auto [__b, __p] + = __detail::mismatch(std::move(__current()), __end, + __pbegin, __pend); + __current() = std::move(__b); + if (__p == __pend) + break; + } while (++__current() != __end); + return *this; + } + + constexpr decltype(auto) + operator++(int) + { + if constexpr (forward_range<_Base>) + { + auto __tmp = *this; + ++*this; + return __tmp; + } + else + ++*this; + } + + friend constexpr bool + operator==(const _OuterIter& __x, const _OuterIter& __y) + requires forward_range<_Base> + { return __x._M_current == __y._M_current; } + + friend constexpr bool + operator==(const _OuterIter& __x, default_sentinel_t) + { return __x.__at_end(); }; + + friend _OuterIter; + friend _InnerIter<_Const>; + }; + + template + struct _InnerIter + { + private: + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + constexpr bool + __at_end() const + { + auto [__pcur, __pend] = subrange{_M_i._M_parent->_M_pattern}; + auto __end = ranges::end(_M_i._M_parent->_M_base); + if constexpr (__detail::__tiny_range<_Pattern>) + { + const auto& __cur = _M_i_current(); + if (__cur == __end) + return true; + if (__pcur == __pend) + return _M_incremented; + return *__cur == *__pcur; + } + else + { + auto __cur = _M_i_current(); + if (__cur == __end) + return true; + if (__pcur == __pend) + return _M_incremented; + do + { + if (*__cur != *__pcur) + return false; + if (++__pcur == __pend) + return true; + } while (++__cur != __end); + return false; + } + } + + static constexpr auto + _S_iter_cat() + { + using _Cat + = typename iterator_traits>::iterator_category; + if constexpr (derived_from<_Cat, forward_iterator_tag>) + return forward_iterator_tag{}; + else + return _Cat{}; + } + + constexpr auto& + _M_i_current() noexcept + { return _M_i.__current(); } + + constexpr auto& + _M_i_current() const noexcept + { return _M_i.__current(); } + + _OuterIter<_Const> _M_i = _OuterIter<_Const>(); + bool _M_incremented = false; + + public: + using iterator_concept + = typename _OuterIter<_Const>::iterator_concept; + using iterator_category = decltype(_S_iter_cat()); + using value_type = range_value_t<_Base>; + using difference_type = range_difference_t<_Base>; + + _InnerIter() = default; + + constexpr explicit + _InnerIter(_OuterIter<_Const> __i) + : _M_i(std::move(__i)) + { } + + constexpr decltype(auto) + operator*() const + { return *_M_i_current(); } + + constexpr _InnerIter& + operator++() + { + _M_incremented = true; + if constexpr (!forward_range<_Base>) + if constexpr (_Pattern::size() == 0) + return *this; + ++_M_i_current(); + return *this; + } + + constexpr decltype(auto) + operator++(int) + { + if constexpr (forward_range<_Vp>) + { + auto __tmp = *this; + ++*this; + return __tmp; + } + else + ++*this; + } + + friend constexpr bool + operator==(const _InnerIter& __x, const _InnerIter& __y) + requires forward_range<_Base> + { return __x._M_i == __y._M_i; } + + friend constexpr bool + operator==(const _InnerIter& __x, default_sentinel_t) + { return __x.__at_end(); } + + friend constexpr decltype(auto) + iter_move(const _InnerIter& __i) + noexcept(noexcept(ranges::iter_move(__i._M_i_current()))) + { return ranges::iter_move(__i._M_i_current()); } + + friend constexpr void + iter_swap(const _InnerIter& __x, const _InnerIter& __y) + noexcept(noexcept(ranges::iter_swap(__x._M_i_current(), + __y._M_i_current()))) + requires indirectly_swappable> + { ranges::iter_swap(__x._M_i_current(), __y._M_i_current()); } + }; + + _Vp _M_base = _Vp(); + _Pattern _M_pattern = _Pattern(); + + // XXX: _M_current is "present only if !forward_range" + [[no_unique_address]] + __detail::__maybe_present_t, iterator_t<_Vp>> + _M_current; + + + public: + split_view() = default; + + constexpr + split_view(_Vp __base, _Pattern __pattern) + : _M_base(std::move(__base)), _M_pattern(std::move(__pattern)) + { } + + template + requires constructible_from<_Vp, views::all_t<_Range>> + && constructible_from<_Pattern, single_view>> + constexpr + split_view(_Range&& __r, range_value_t<_Range> __e) + : _M_base(views::all(std::forward<_Range>(__r))), + _M_pattern(std::move(__e)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr auto + begin() + { + if constexpr (forward_range<_Vp>) + return _OuterIter<__detail::__simple_view<_Vp>>{ + *this, ranges::begin(_M_base)}; + else + { + _M_current = ranges::begin(_M_base); + return _OuterIter{*this}; + } + } + + constexpr auto + begin() const requires forward_range<_Vp> && forward_range + { + return _OuterIter{*this, ranges::begin(_M_base)}; + } + + constexpr auto + end() requires forward_range<_Vp> && common_range<_Vp> + { + return _OuterIter<__detail::__simple_view<_Vp>>{ + *this, ranges::end(_M_base)}; + } + + constexpr auto + end() const + { + if constexpr (forward_range<_Vp> + && forward_range + && common_range) + return _OuterIter{*this, ranges::end(_M_base)}; + else + return default_sentinel; + } + }; + + template + split_view(_Range&&, _Pred&&) + -> split_view, views::all_t<_Pred>>; + + template + split_view(_Range&&, range_value_t<_Range>) + -> split_view, single_view>>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptor split + = [] (_Range&& __r, _Fp&& __f) + { + return split_view{std::forward<_Range>(__r), std::forward<_Fp>(__f)}; + }; + } // namespace views + + namespace views + { + struct _Counted + { + template + constexpr auto + operator()(_Iter __i, iter_difference_t<_Iter> __n) const + { + if constexpr (random_access_iterator<_Iter>) + return subrange{__i, __i + __n}; + else + return subrange{counted_iterator{std::move(__i), __n}, + default_sentinel}; + } + }; + + inline constexpr _Counted counted{}; + } // namespace views + + template + requires (!common_range<_Vp>) && copyable> + class common_view : public view_interface> + { + private: + _Vp _M_base = _Vp(); + + public: + common_view() = default; + + constexpr explicit + common_view(_Vp __r) + : _M_base(std::move(__r)) + { } + + /* XXX: LWG 3280 didn't remove this constructor, but I think it should? + template + requires (!common_range<_Range>) + && constructible_from<_Vp, views::all_t<_Range>> + constexpr explicit + common_view(_Range&& __r) + : _M_base(views::all(std::forward<_Range>(__r))) + { } + */ + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr auto + begin() + { + if constexpr (random_access_range<_Vp> && sized_range<_Vp>) + return ranges::begin(_M_base); + else + return common_iterator, sentinel_t<_Vp>> + (ranges::begin(_M_base)); + } + + constexpr auto + begin() const requires range + { + if constexpr (random_access_range && sized_range) + return ranges::begin(_M_base); + else + return common_iterator, sentinel_t> + (ranges::begin(_M_base)); + } + + constexpr auto + end() + { + if constexpr (random_access_range<_Vp> && sized_range<_Vp>) + return ranges::begin(_M_base) + ranges::size(_M_base); + else + return common_iterator, sentinel_t<_Vp>> + (ranges::end(_M_base)); + } + + constexpr auto + end() const requires range + { + if constexpr (random_access_range && sized_range) + return ranges::begin(_M_base) + ranges::size(_M_base); + else + return common_iterator, sentinel_t> + (ranges::end(_M_base)); + } + + constexpr auto + size() requires sized_range<_Vp> + { return ranges::size(_M_base); } + + constexpr auto + size() const requires sized_range + { return ranges::size(_M_base); } + }; + + template + common_view(_Range&&) -> common_view>; + + namespace views + { + inline constexpr __adaptor::_RangeAdaptorClosure common + = [] (_Range&& __r) + { + if constexpr (common_range<_Range> + && requires { views::all(std::forward<_Range>(__r)); }) + return views::all(std::forward<_Range>(__r)); + else + return common_view{std::forward<_Range>(__r)}; + }; + + } // namespace views + + template + requires bidirectional_range<_Vp> + class reverse_view : public view_interface> + { + private: + _Vp _M_base = _Vp(); + + static constexpr bool _S_needs_cached_begin + = !common_range<_Vp> && !random_access_range<_Vp>; + [[no_unique_address]] + __detail::__maybe_present_t<_S_needs_cached_begin, + __detail::_CachedPosition<_Vp>> + _M_cached_begin; + + public: + reverse_view() = default; + + constexpr explicit + reverse_view(_Vp __r) + : _M_base(std::move(__r)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr reverse_iterator> + begin() + { + if constexpr (_S_needs_cached_begin) + if (_M_cached_begin._M_has_value()) + return make_reverse_iterator(_M_cached_begin._M_get(_M_base)); + + auto __it = ranges::next(ranges::begin(_M_base), ranges::end(_M_base)); + if constexpr (_S_needs_cached_begin) + _M_cached_begin._M_set(_M_base, __it); + return make_reverse_iterator(std::move(__it)); + } + + constexpr auto + begin() requires common_range<_Vp> + { return make_reverse_iterator(ranges::end(_M_base)); } + + constexpr auto + begin() const requires common_range + { return make_reverse_iterator(ranges::end(_M_base)); } + + constexpr reverse_iterator> + end() + { return make_reverse_iterator(ranges::begin(_M_base)); } + + constexpr auto + end() const requires common_range + { return make_reverse_iterator(ranges::begin(_M_base)); } + + constexpr auto + size() requires sized_range<_Vp> + { return ranges::size(_M_base); } + + constexpr auto + size() const requires sized_range + { return ranges::size(_M_base); } + }; + + template + reverse_view(_Range&&) -> reverse_view>; + + namespace views + { + namespace __detail + { + template + inline constexpr bool __is_reversible_subrange = false; + + template + inline constexpr bool + __is_reversible_subrange, + reverse_iterator<_Iter>, + _Kind>> = true; + + template + inline constexpr bool __is_reverse_view = false; + + template + inline constexpr bool __is_reverse_view> = true; + } + + inline constexpr __adaptor::_RangeAdaptorClosure reverse + = [] (_Range&& __r) + { + using _Tp = remove_cvref_t<_Range>; + if constexpr (__detail::__is_reverse_view<_Tp>) + return std::forward<_Range>(__r).base(); + else if constexpr (__detail::__is_reversible_subrange<_Tp>) + { + using _Iter = decltype(ranges::begin(__r).base()); + if constexpr (sized_range<_Tp>) + return subrange<_Iter, _Iter, subrange_kind::sized> + (__r.end().base(), __r.begin().base(), __r.size()); + else + return subrange<_Iter, _Iter, subrange_kind::unsized> + (__r.end().base(), __r.begin().base()); + } + else + return reverse_view{std::forward<_Range>(__r)}; + }; + } // namespace views + + namespace __detail + { + template + concept __has_tuple_element = requires(_Tp __t) + { + typename tuple_size<_Tp>::type; + requires _Nm < tuple_size_v<_Tp>; + typename tuple_element_t<_Nm, _Tp>; + { std::get<_Nm>(__t) } + -> convertible_to&>; + }; + } + + template + requires view<_Vp> + && __detail::__has_tuple_element, _Nm> + && __detail::__has_tuple_element>, + _Nm> + class elements_view : public view_interface> + { + public: + elements_view() = default; + + constexpr explicit + elements_view(_Vp base) + : _M_base(std::move(base)) + { } + + constexpr _Vp + base() const& requires copy_constructible<_Vp> + { return _M_base; } + + constexpr _Vp + base() && + { return std::move(_M_base); } + + constexpr auto + begin() requires (!__detail::__simple_view<_Vp>) + { return _Iterator(ranges::begin(_M_base)); } + + constexpr auto + begin() const requires range + { return _Iterator(ranges::begin(_M_base)); } + + constexpr auto + end() requires (!__detail::__simple_view<_Vp> && !common_range<_Vp>) + { return _Sentinel{ranges::end(_M_base)}; } + + constexpr auto + end() requires (!__detail::__simple_view<_Vp> && common_range<_Vp>) + { return _Iterator{ranges::end(_M_base)}; } + + constexpr auto + end() const requires range + { return _Sentinel{ranges::end(_M_base)}; } + + constexpr auto + end() const requires common_range + { return _Iterator{ranges::end(_M_base)}; } + + constexpr auto + size() requires sized_range<_Vp> + { return ranges::size(_M_base); } + + constexpr auto + size() const requires sized_range + { return ranges::size(_M_base); } + + private: + template + struct _Sentinel; + + template + struct _Iterator + { + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + + iterator_t<_Base> _M_current = iterator_t<_Base>(); + + friend _Iterator; + + public: + using iterator_category + = typename iterator_traits>::iterator_category; + using value_type + = remove_cvref_t>>; + using difference_type = range_difference_t<_Base>; + + _Iterator() = default; + + constexpr explicit + _Iterator(iterator_t<_Base> current) + : _M_current(std::move(current)) + { } + + constexpr + _Iterator(_Iterator i) + requires _Const && convertible_to, iterator_t<_Base>> + : _M_current(std::move(i._M_current)) + { } + + constexpr iterator_t<_Base> + base() const& + requires copyable> + { return _M_current; } + + constexpr iterator_t<_Base> + base() && + { return std::move(_M_current); } + + constexpr decltype(auto) + operator*() const + { return std::get<_Nm>(*_M_current); } + + constexpr _Iterator& + operator++() + { + ++_M_current; + return *this; + } + + constexpr void + operator++(int) requires (!forward_range<_Base>) + { ++_M_current; } + + constexpr _Iterator + operator++(int) requires forward_range<_Base> + { + auto __tmp = *this; + ++_M_current; + return __tmp; + } + + constexpr _Iterator& + operator--() requires bidirectional_range<_Base> + { + --_M_current; + return *this; + } + + constexpr _Iterator + operator--(int) requires bidirectional_range<_Base> + { + auto __tmp = *this; + --_M_current; + return __tmp; + } + + constexpr _Iterator& + operator+=(difference_type __n) + requires random_access_range<_Base> + { + _M_current += __n; + return *this; + } + + constexpr _Iterator& + operator-=(difference_type __n) + requires random_access_range<_Base> + { + _M_current -= __n; + return *this; + } + + constexpr decltype(auto) + operator[](difference_type __n) const + requires random_access_range<_Base> + { return std::get<_Nm>(*(_M_current + __n)); } + + friend constexpr bool + operator==(const _Iterator& __x, const _Iterator& __y) + requires equality_comparable> + { return __x._M_current == __y._M_current; } + + friend constexpr bool + operator<(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __x._M_current < __y._M_current; } + + friend constexpr bool + operator>(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __y._M_current < __x._M_current; } + + friend constexpr bool + operator<=(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return !(__y._M_current > __x._M_current); } + + friend constexpr bool + operator>=(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return !(__x._M_current > __y._M_current); } + +#ifdef __cpp_lib_three_way_comparison + friend constexpr auto + operator<=>(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + && three_way_comparable> + { return __x._M_current <=> __y._M_current; } +#endif + + friend constexpr _Iterator + operator+(const _Iterator& __x, difference_type __y) + requires random_access_range<_Base> + { return _Iterator{__x} += __y; } + + friend constexpr _Iterator + operator+(difference_type __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __y + __x; } + + friend constexpr _Iterator + operator-(const _Iterator& __x, difference_type __y) + requires random_access_range<_Base> + { return _Iterator{__x} -= __y; } + + friend constexpr difference_type + operator-(const _Iterator& __x, const _Iterator& __y) + requires random_access_range<_Base> + { return __x._M_current - __y._M_current; } + + friend _Sentinel<_Const>; + }; + + template + struct _Sentinel + { + private: + constexpr bool + _M_equal(const _Iterator<_Const>& __x) const + { return __x._M_current == _M_end; } + + using _Base = __detail::__maybe_const_t<_Const, _Vp>; + sentinel_t<_Base> _M_end = sentinel_t<_Base>(); + + public: + _Sentinel() = default; + + constexpr explicit + _Sentinel(sentinel_t<_Base> __end) + : _M_end(std::move(__end)) + { } + + constexpr + _Sentinel(_Sentinel __other) + requires _Const + && convertible_to, sentinel_t<_Base>> + : _M_end(std::move(__other._M_end)) + { } + + constexpr sentinel_t<_Base> + base() const + { return _M_end; } + + template + requires sentinel_for, + iterator_t<__detail::__maybe_const_t<_Const2, _Vp>>> + friend constexpr bool + operator==(const _Iterator<_Const2>& __x, const _Sentinel& __y) + { return __y._M_equal(__x); } + + template> + requires sized_sentinel_for, iterator_t<_Base2>> + friend constexpr range_difference_t<_Base2> + operator-(const _Iterator<_Const2>& __x, const _Sentinel& __y) + { return __x._M_current - __y._M_end; } + + template> + requires sized_sentinel_for, iterator_t<_Base2>> + friend constexpr range_difference_t<_Base> + operator-(const _Sentinel& __x, const _Iterator<_Const2>& __y) + { return __x._M_end - __y._M_current; } + + friend _Sentinel; + }; + + _Vp _M_base = _Vp(); + }; + + template + using keys_view = elements_view, 0>; + + template + using values_view = elements_view, 1>; + + namespace views + { + template + inline constexpr __adaptor::_RangeAdaptorClosure elements + = [] (_Range&& __r) + { + using _El = elements_view, _Nm>; + return _El{std::forward<_Range>(__r)}; + }; + + inline constexpr __adaptor::_RangeAdaptorClosure keys = elements<0>; + inline constexpr __adaptor::_RangeAdaptorClosure values = elements<1>; + } // namespace views + +} // namespace ranges + + namespace views = ranges::views; + + template + struct tuple_size> + : integral_constant + { }; + + template + struct tuple_element<0, ranges::subrange<_Iter, _Sent, _Kind>> + { using type = _Iter; }; + + template + struct tuple_element<1, ranges::subrange<_Iter, _Sent, _Kind>> + { using type = _Sent; }; + + template + struct tuple_element<0, const ranges::subrange<_Iter, _Sent, _Kind>> + { using type = _Iter; }; + + template + struct tuple_element<1, const ranges::subrange<_Iter, _Sent, _Kind>> + { using type = _Sent; }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace +#endif // library concepts +#endif // C++2a +#endif /* _GLIBCXX_RANGES */ diff --git a/resources/sources/avr-libstdcpp/include/ratio b/resources/sources/avr-libstdcpp/include/ratio new file mode 100644 index 000000000..83c8c7927 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/ratio @@ -0,0 +1,576 @@ +// ratio -*- C++ -*- + +// Copyright (C) 2008-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/ratio + * This is a Standard C++ Library header. + * @ingroup ratio + */ + +#ifndef _GLIBCXX_RATIO +#define _GLIBCXX_RATIO 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include // intmax_t, uintmax_t + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup ratio Rational Arithmetic + * @ingroup utilities + * + * Compile time representation of finite rational numbers. + * @{ + */ + + /// @cond undocumented + + template + struct __static_sign + : integral_constant + { }; + + template + struct __static_abs + : integral_constant::value> + { }; + + template + struct __static_gcd + : __static_gcd<_Qn, (_Pn % _Qn)> + { }; + + template + struct __static_gcd<_Pn, 0> + : integral_constant::value> + { }; + + template + struct __static_gcd<0, _Qn> + : integral_constant::value> + { }; + + // Let c = 2^(half # of bits in an intmax_t) + // then we find a1, a0, b1, b0 s.t. N = a1*c + a0, M = b1*c + b0 + // The multiplication of N and M becomes, + // N * M = (a1 * b1)c^2 + (a0 * b1 + b0 * a1)c + a0 * b0 + // Multiplication is safe if each term and the sum of the terms + // is representable by intmax_t. + template + struct __safe_multiply + { + private: + static const uintmax_t __c = uintmax_t(1) << (sizeof(intmax_t) * 4); + + static const uintmax_t __a0 = __static_abs<_Pn>::value % __c; + static const uintmax_t __a1 = __static_abs<_Pn>::value / __c; + static const uintmax_t __b0 = __static_abs<_Qn>::value % __c; + static const uintmax_t __b1 = __static_abs<_Qn>::value / __c; + + static_assert(__a1 == 0 || __b1 == 0, + "overflow in multiplication"); + static_assert(__a0 * __b1 + __b0 * __a1 < (__c >> 1), + "overflow in multiplication"); + static_assert(__b0 * __a0 <= __INTMAX_MAX__, + "overflow in multiplication"); + static_assert((__a0 * __b1 + __b0 * __a1) * __c + <= __INTMAX_MAX__ - __b0 * __a0, + "overflow in multiplication"); + + public: + static const intmax_t value = _Pn * _Qn; + }; + + // Some double-precision utilities, where numbers are represented as + // __hi*2^(8*sizeof(uintmax_t)) + __lo. + template + struct __big_less + : integral_constant + { }; + + template + struct __big_add + { + static constexpr uintmax_t __lo = __lo1 + __lo2; + static constexpr uintmax_t __hi = (__hi1 + __hi2 + + (__lo1 + __lo2 < __lo1)); // carry + }; + + // Subtract a number from a bigger one. + template + struct __big_sub + { + static_assert(!__big_less<__hi1, __lo1, __hi2, __lo2>::value, + "Internal library error"); + static constexpr uintmax_t __lo = __lo1 - __lo2; + static constexpr uintmax_t __hi = (__hi1 - __hi2 - + (__lo1 < __lo2)); // carry + }; + + // Same principle as __safe_multiply. + template + struct __big_mul + { + private: + static constexpr uintmax_t __c = uintmax_t(1) << (sizeof(intmax_t) * 4); + static constexpr uintmax_t __x0 = __x % __c; + static constexpr uintmax_t __x1 = __x / __c; + static constexpr uintmax_t __y0 = __y % __c; + static constexpr uintmax_t __y1 = __y / __c; + static constexpr uintmax_t __x0y0 = __x0 * __y0; + static constexpr uintmax_t __x0y1 = __x0 * __y1; + static constexpr uintmax_t __x1y0 = __x1 * __y0; + static constexpr uintmax_t __x1y1 = __x1 * __y1; + static constexpr uintmax_t __mix = __x0y1 + __x1y0; // possible carry... + static constexpr uintmax_t __mix_lo = __mix * __c; + static constexpr uintmax_t __mix_hi + = __mix / __c + ((__mix < __x0y1) ? __c : 0); // ... added here + typedef __big_add<__mix_hi, __mix_lo, __x1y1, __x0y0> _Res; + public: + static constexpr uintmax_t __hi = _Res::__hi; + static constexpr uintmax_t __lo = _Res::__lo; + }; + + // Adapted from __udiv_qrnnd_c in longlong.h + // This version assumes that the high bit of __d is 1. + template + struct __big_div_impl + { + private: + static_assert(__d >= (uintmax_t(1) << (sizeof(intmax_t) * 8 - 1)), + "Internal library error"); + static_assert(__n1 < __d, "Internal library error"); + static constexpr uintmax_t __c = uintmax_t(1) << (sizeof(intmax_t) * 4); + static constexpr uintmax_t __d1 = __d / __c; + static constexpr uintmax_t __d0 = __d % __c; + + static constexpr uintmax_t __q1x = __n1 / __d1; + static constexpr uintmax_t __r1x = __n1 % __d1; + static constexpr uintmax_t __m = __q1x * __d0; + static constexpr uintmax_t __r1y = __r1x * __c + __n0 / __c; + static constexpr uintmax_t __r1z = __r1y + __d; + static constexpr uintmax_t __r1 + = ((__r1y < __m) ? ((__r1z >= __d) && (__r1z < __m)) + ? (__r1z + __d) : __r1z : __r1y) - __m; + static constexpr uintmax_t __q1 + = __q1x - ((__r1y < __m) + ? ((__r1z >= __d) && (__r1z < __m)) ? 2 : 1 : 0); + static constexpr uintmax_t __q0x = __r1 / __d1; + static constexpr uintmax_t __r0x = __r1 % __d1; + static constexpr uintmax_t __n = __q0x * __d0; + static constexpr uintmax_t __r0y = __r0x * __c + __n0 % __c; + static constexpr uintmax_t __r0z = __r0y + __d; + static constexpr uintmax_t __r0 + = ((__r0y < __n) ? ((__r0z >= __d) && (__r0z < __n)) + ? (__r0z + __d) : __r0z : __r0y) - __n; + static constexpr uintmax_t __q0 + = __q0x - ((__r0y < __n) ? ((__r0z >= __d) + && (__r0z < __n)) ? 2 : 1 : 0); + + public: + static constexpr uintmax_t __quot = __q1 * __c + __q0; + static constexpr uintmax_t __rem = __r0; + + private: + typedef __big_mul<__quot, __d> _Prod; + typedef __big_add<_Prod::__hi, _Prod::__lo, 0, __rem> _Sum; + static_assert(_Sum::__hi == __n1 && _Sum::__lo == __n0, + "Internal library error"); + }; + + template + struct __big_div + { + private: + static_assert(__d != 0, "Internal library error"); + static_assert(sizeof (uintmax_t) == sizeof (unsigned long long), + "This library calls __builtin_clzll on uintmax_t, which " + "is unsafe on your platform. Please complain to " + "http://gcc.gnu.org/bugzilla/"); + static constexpr int __shift = __builtin_clzll(__d); + static constexpr int __coshift_ = sizeof(uintmax_t) * 8 - __shift; + static constexpr int __coshift = (__shift != 0) ? __coshift_ : 0; + static constexpr uintmax_t __c1 = uintmax_t(1) << __shift; + static constexpr uintmax_t __c2 = uintmax_t(1) << __coshift; + static constexpr uintmax_t __new_d = __d * __c1; + static constexpr uintmax_t __new_n0 = __n0 * __c1; + static constexpr uintmax_t __n1_shifted = (__n1 % __d) * __c1; + static constexpr uintmax_t __n0_top = (__shift != 0) ? (__n0 / __c2) : 0; + static constexpr uintmax_t __new_n1 = __n1_shifted + __n0_top; + typedef __big_div_impl<__new_n1, __new_n0, __new_d> _Res; + + public: + static constexpr uintmax_t __quot_hi = __n1 / __d; + static constexpr uintmax_t __quot_lo = _Res::__quot; + static constexpr uintmax_t __rem = _Res::__rem / __c1; + + private: + typedef __big_mul<__quot_lo, __d> _P0; + typedef __big_mul<__quot_hi, __d> _P1; + typedef __big_add<_P0::__hi, _P0::__lo, _P1::__lo, __rem> _Sum; + // No overflow. + static_assert(_P1::__hi == 0, "Internal library error"); + static_assert(_Sum::__hi >= _P0::__hi, "Internal library error"); + // Matches the input data. + static_assert(_Sum::__hi == __n1 && _Sum::__lo == __n0, + "Internal library error"); + static_assert(__rem < __d, "Internal library error"); + }; + + /// @endcond + + /** + * @brief Provides compile-time rational arithmetic. + * + * This class template represents any finite rational number with a + * numerator and denominator representable by compile-time constants of + * type intmax_t. The ratio is simplified when instantiated. + * + * For example: + * @code + * std::ratio<7,-21>::num == -1; + * std::ratio<7,-21>::den == 3; + * @endcode + * + */ + template + struct ratio + { + static_assert(_Den != 0, "denominator cannot be zero"); + static_assert(_Num >= -__INTMAX_MAX__ && _Den >= -__INTMAX_MAX__, + "out of range"); + + // Note: sign(N) * abs(N) == N + static constexpr intmax_t num = + _Num * __static_sign<_Den>::value / __static_gcd<_Num, _Den>::value; + + static constexpr intmax_t den = + __static_abs<_Den>::value / __static_gcd<_Num, _Den>::value; + + typedef ratio type; + }; + + template + constexpr intmax_t ratio<_Num, _Den>::num; + + template + constexpr intmax_t ratio<_Num, _Den>::den; + + /// @cond undocumented + + template + struct __ratio_multiply + { + private: + static const intmax_t __gcd1 = + __static_gcd<_R1::num, _R2::den>::value; + static const intmax_t __gcd2 = + __static_gcd<_R2::num, _R1::den>::value; + + public: + typedef ratio< + __safe_multiply<(_R1::num / __gcd1), + (_R2::num / __gcd2)>::value, + __safe_multiply<(_R1::den / __gcd2), + (_R2::den / __gcd1)>::value> type; + + static constexpr intmax_t num = type::num; + static constexpr intmax_t den = type::den; + }; + + template + constexpr intmax_t __ratio_multiply<_R1, _R2>::num; + + template + constexpr intmax_t __ratio_multiply<_R1, _R2>::den; + + /// @endcond + + /// ratio_multiply + template + using ratio_multiply = typename __ratio_multiply<_R1, _R2>::type; + + /// @cond undocumented + + template + struct __ratio_divide + { + static_assert(_R2::num != 0, "division by 0"); + + typedef typename __ratio_multiply< + _R1, + ratio<_R2::den, _R2::num>>::type type; + + static constexpr intmax_t num = type::num; + static constexpr intmax_t den = type::den; + }; + + template + constexpr intmax_t __ratio_divide<_R1, _R2>::num; + + template + constexpr intmax_t __ratio_divide<_R1, _R2>::den; + + /// @endcond + + /// ratio_divide + template + using ratio_divide = typename __ratio_divide<_R1, _R2>::type; + + /// ratio_equal + template + struct ratio_equal + : integral_constant + { }; + + /// ratio_not_equal + template + struct ratio_not_equal + : integral_constant::value> + { }; + + /// @cond undocumented + + // Both numbers are positive. + template, + typename _Right = __big_mul<_R2::num,_R1::den> > + struct __ratio_less_impl_1 + : integral_constant::value> + { }; + + template::value + != __static_sign<_R2::num>::value)), + bool = (__static_sign<_R1::num>::value == -1 + && __static_sign<_R2::num>::value == -1)> + struct __ratio_less_impl + : __ratio_less_impl_1<_R1, _R2>::type + { }; + + template + struct __ratio_less_impl<_R1, _R2, true, false> + : integral_constant + { }; + + template + struct __ratio_less_impl<_R1, _R2, false, true> + : __ratio_less_impl_1, + ratio<-_R1::num, _R1::den> >::type + { }; + + /// @endcond + + /// ratio_less + template + struct ratio_less + : __ratio_less_impl<_R1, _R2>::type + { }; + + /// ratio_less_equal + template + struct ratio_less_equal + : integral_constant::value> + { }; + + /// ratio_greater + template + struct ratio_greater + : integral_constant::value> + { }; + + /// ratio_greater_equal + template + struct ratio_greater_equal + : integral_constant::value> + { }; + +#if __cplusplus > 201402L + template + inline constexpr bool ratio_equal_v = ratio_equal<_R1, _R2>::value; + template + inline constexpr bool ratio_not_equal_v = ratio_not_equal<_R1, _R2>::value; + template + inline constexpr bool ratio_less_v = ratio_less<_R1, _R2>::value; + template + inline constexpr bool ratio_less_equal_v = + ratio_less_equal<_R1, _R2>::value; + template + inline constexpr bool ratio_greater_v = ratio_greater<_R1, _R2>::value; + template + inline constexpr bool ratio_greater_equal_v + = ratio_greater_equal<_R1, _R2>::value; +#endif // C++17 + + /// @cond undocumented + + template= 0), + bool = (_R2::num >= 0), + bool = ratio_less::value, _R1::den>, + ratio<__static_abs<_R2::num>::value, _R2::den> >::value> + struct __ratio_add_impl + { + private: + typedef typename __ratio_add_impl< + ratio<-_R1::num, _R1::den>, + ratio<-_R2::num, _R2::den> >::type __t; + public: + typedef ratio<-__t::num, __t::den> type; + }; + + // True addition of nonnegative numbers. + template + struct __ratio_add_impl<_R1, _R2, true, true, __b> + { + private: + static constexpr uintmax_t __g = __static_gcd<_R1::den, _R2::den>::value; + static constexpr uintmax_t __d2 = _R2::den / __g; + typedef __big_mul<_R1::den, __d2> __d; + typedef __big_mul<_R1::num, _R2::den / __g> __x; + typedef __big_mul<_R2::num, _R1::den / __g> __y; + typedef __big_add<__x::__hi, __x::__lo, __y::__hi, __y::__lo> __n; + static_assert(__n::__hi >= __x::__hi, "Internal library error"); + typedef __big_div<__n::__hi, __n::__lo, __g> __ng; + static constexpr uintmax_t __g2 = __static_gcd<__ng::__rem, __g>::value; + typedef __big_div<__n::__hi, __n::__lo, __g2> __n_final; + static_assert(__n_final::__rem == 0, "Internal library error"); + static_assert(__n_final::__quot_hi == 0 && + __n_final::__quot_lo <= __INTMAX_MAX__, "overflow in addition"); + typedef __big_mul<_R1::den / __g2, __d2> __d_final; + static_assert(__d_final::__hi == 0 && + __d_final::__lo <= __INTMAX_MAX__, "overflow in addition"); + public: + typedef ratio<__n_final::__quot_lo, __d_final::__lo> type; + }; + + template + struct __ratio_add_impl<_R1, _R2, false, true, true> + : __ratio_add_impl<_R2, _R1> + { }; + + // True subtraction of nonnegative numbers yielding a nonnegative result. + template + struct __ratio_add_impl<_R1, _R2, true, false, false> + { + private: + static constexpr uintmax_t __g = __static_gcd<_R1::den, _R2::den>::value; + static constexpr uintmax_t __d2 = _R2::den / __g; + typedef __big_mul<_R1::den, __d2> __d; + typedef __big_mul<_R1::num, _R2::den / __g> __x; + typedef __big_mul<-_R2::num, _R1::den / __g> __y; + typedef __big_sub<__x::__hi, __x::__lo, __y::__hi, __y::__lo> __n; + typedef __big_div<__n::__hi, __n::__lo, __g> __ng; + static constexpr uintmax_t __g2 = __static_gcd<__ng::__rem, __g>::value; + typedef __big_div<__n::__hi, __n::__lo, __g2> __n_final; + static_assert(__n_final::__rem == 0, "Internal library error"); + static_assert(__n_final::__quot_hi == 0 && + __n_final::__quot_lo <= __INTMAX_MAX__, "overflow in addition"); + typedef __big_mul<_R1::den / __g2, __d2> __d_final; + static_assert(__d_final::__hi == 0 && + __d_final::__lo <= __INTMAX_MAX__, "overflow in addition"); + public: + typedef ratio<__n_final::__quot_lo, __d_final::__lo> type; + }; + + template + struct __ratio_add + { + typedef typename __ratio_add_impl<_R1, _R2>::type type; + static constexpr intmax_t num = type::num; + static constexpr intmax_t den = type::den; + }; + + template + constexpr intmax_t __ratio_add<_R1, _R2>::num; + + template + constexpr intmax_t __ratio_add<_R1, _R2>::den; + + /// @endcond + + /// ratio_add + template + using ratio_add = typename __ratio_add<_R1, _R2>::type; + + /// @cond undocumented + + template + struct __ratio_subtract + { + typedef typename __ratio_add< + _R1, + ratio<-_R2::num, _R2::den>>::type type; + + static constexpr intmax_t num = type::num; + static constexpr intmax_t den = type::den; + }; + + template + constexpr intmax_t __ratio_subtract<_R1, _R2>::num; + + template + constexpr intmax_t __ratio_subtract<_R1, _R2>::den; + + /// @endcond + + /// ratio_subtract + template + using ratio_subtract = typename __ratio_subtract<_R1, _R2>::type; + + + typedef ratio<1, 1000000000000000000> atto; + typedef ratio<1, 1000000000000000> femto; + typedef ratio<1, 1000000000000> pico; + typedef ratio<1, 1000000000> nano; + typedef ratio<1, 1000000> micro; + typedef ratio<1, 1000> milli; + typedef ratio<1, 100> centi; + typedef ratio<1, 10> deci; + typedef ratio< 10, 1> deca; + typedef ratio< 100, 1> hecto; + typedef ratio< 1000, 1> kilo; + typedef ratio< 1000000, 1> mega; + typedef ratio< 1000000000, 1> giga; + typedef ratio< 1000000000000, 1> tera; + typedef ratio< 1000000000000000, 1> peta; + typedef ratio< 1000000000000000000, 1> exa; + + // @} group ratio +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif //_GLIBCXX_RATIO diff --git a/resources/sources/avr-libstdcpp/include/scoped_allocator b/resources/sources/avr-libstdcpp/include/scoped_allocator new file mode 100644 index 000000000..969b6d8e8 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/scoped_allocator @@ -0,0 +1,519 @@ +// -*- C++ -*- + +// Copyright (C) 2011-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/scoped_allocator + * This is a Standard C++ Library header. + * @ingroup allocators + */ + +#ifndef _SCOPED_ALLOCATOR +#define _SCOPED_ALLOCATOR 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup allocators + * @{ + */ + + /// @cond undocumented + + template + using __outer_allocator_t + = decltype(std::declval<_Alloc>().outer_allocator()); + + template + struct __outermost_type + { + using type = _Alloc; + static type& _S_outermost(_Alloc& __a) { return __a; } + }; + + template + struct __outermost_type<_Alloc, __void_t<__outer_allocator_t<_Alloc>>> + : __outermost_type< + typename remove_reference<__outer_allocator_t<_Alloc>>::type + > + { + using __base = __outermost_type< + typename remove_reference<__outer_allocator_t<_Alloc>>::type + >; + + static typename __base::type& + _S_outermost(_Alloc& __a) + { return __base::_S_outermost(__a.outer_allocator()); } + }; + + /// Implementation of the OUTERMOST pseudofunction + template + inline typename __outermost_type<_Alloc>::type& + __outermost(_Alloc& __a) + { return __outermost_type<_Alloc>::_S_outermost(__a); } + + template + class scoped_allocator_adaptor; + + template + struct __inner_type_impl; + + template + struct __inner_type_impl<_Outer> + { + typedef scoped_allocator_adaptor<_Outer> __type; + + __inner_type_impl() = default; + __inner_type_impl(const __inner_type_impl&) = default; + __inner_type_impl(__inner_type_impl&&) = default; + __inner_type_impl& operator=(const __inner_type_impl&) = default; + __inner_type_impl& operator=(__inner_type_impl&&) = default; + + template + __inner_type_impl(const __inner_type_impl<_Alloc>& __other) + { } + + template + __inner_type_impl(__inner_type_impl<_Alloc>&& __other) + { } + + __type& + _M_get(__type* __p) noexcept { return *__p; } + + const __type& + _M_get(const __type* __p) const noexcept { return *__p; } + + tuple<> + _M_tie() const noexcept { return tuple<>(); } + + bool + operator==(const __inner_type_impl&) const noexcept + { return true; } + }; + + template + struct __inner_type_impl<_Outer, _InnerHead, _InnerTail...> + { + typedef scoped_allocator_adaptor<_InnerHead, _InnerTail...> __type; + + __inner_type_impl() = default; + __inner_type_impl(const __inner_type_impl&) = default; + __inner_type_impl(__inner_type_impl&&) = default; + __inner_type_impl& operator=(const __inner_type_impl&) = default; + __inner_type_impl& operator=(__inner_type_impl&&) = default; + + template + __inner_type_impl(const __inner_type_impl<_Allocs...>& __other) + : _M_inner(__other._M_inner) { } + + template + __inner_type_impl(__inner_type_impl<_Allocs...>&& __other) + : _M_inner(std::move(__other._M_inner)) { } + + template + explicit + __inner_type_impl(_Args&&... __args) + : _M_inner(std::forward<_Args>(__args)...) { } + + __type& + _M_get(void*) noexcept { return _M_inner; } + + const __type& + _M_get(const void*) const noexcept { return _M_inner; } + + tuple + _M_tie() const noexcept + { return _M_inner._M_tie(); } + + bool + operator==(const __inner_type_impl& __other) const noexcept + { return _M_inner == __other._M_inner; } + + private: + template friend class __inner_type_impl; + template friend class scoped_allocator_adaptor; + + __type _M_inner; + }; + + /// @endcond + + /// An adaptor to recursively pass an allocator to the objects it constructs + template + class scoped_allocator_adaptor + : public _OuterAlloc + { + typedef allocator_traits<_OuterAlloc> __traits; + + typedef __inner_type_impl<_OuterAlloc, _InnerAllocs...> __inner_type; + __inner_type _M_inner; + + template + friend class scoped_allocator_adaptor; + + template + friend class __inner_type_impl; + + tuple + _M_tie() const noexcept + { return std::tuple_cat(std::tie(outer_allocator()), _M_inner._M_tie()); } + + template + using __outermost_alloc_traits + = allocator_traits::type>; + +#if __cplusplus <= 201703 + template + void + _M_construct(__uses_alloc0, _Tp* __p, _Args&&... __args) + { + typedef __outermost_alloc_traits _O_traits; + _O_traits::construct(__outermost(*this), __p, + std::forward<_Args>(__args)...); + } + + typedef __uses_alloc1 __uses_alloc1_; + typedef __uses_alloc2 __uses_alloc2_; + + template + void + _M_construct(__uses_alloc1_, _Tp* __p, _Args&&... __args) + { + typedef __outermost_alloc_traits _O_traits; + _O_traits::construct(__outermost(*this), __p, + allocator_arg, inner_allocator(), + std::forward<_Args>(__args)...); + } + + template + void + _M_construct(__uses_alloc2_, _Tp* __p, _Args&&... __args) + { + typedef __outermost_alloc_traits _O_traits; + _O_traits::construct(__outermost(*this), __p, + std::forward<_Args>(__args)..., + inner_allocator()); + } +#endif // C++17 + + template + static _Alloc + _S_select_on_copy(const _Alloc& __a) + { + typedef allocator_traits<_Alloc> __a_traits; + return __a_traits::select_on_container_copy_construction(__a); + } + + template + scoped_allocator_adaptor(tuple __refs, + _Index_tuple<_Indices...>) + : _OuterAlloc(_S_select_on_copy(std::get<0>(__refs))), + _M_inner(_S_select_on_copy(std::get<_Indices+1>(__refs))...) + { } + + // Used to constrain constructors to disallow invalid conversions. + template + using _Constructible = typename enable_if< + is_constructible<_OuterAlloc, _Alloc>::value + >::type; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2975. Missing case for pair construction in scoped [...] allocators + template + struct __not_pair { using type = void; }; + + template + struct __not_pair> { }; + + public: + typedef _OuterAlloc outer_allocator_type; + typedef typename __inner_type::__type inner_allocator_type; + + typedef typename __traits::value_type value_type; + typedef typename __traits::size_type size_type; + typedef typename __traits::difference_type difference_type; + typedef typename __traits::pointer pointer; + typedef typename __traits::const_pointer const_pointer; + typedef typename __traits::void_pointer void_pointer; + typedef typename __traits::const_void_pointer const_void_pointer; + + typedef typename __or_< + typename __traits::propagate_on_container_copy_assignment, + typename allocator_traits<_InnerAllocs>:: + propagate_on_container_copy_assignment...>::type + propagate_on_container_copy_assignment; + + typedef typename __or_< + typename __traits::propagate_on_container_move_assignment, + typename allocator_traits<_InnerAllocs>:: + propagate_on_container_move_assignment...>::type + propagate_on_container_move_assignment; + + typedef typename __or_< + typename __traits::propagate_on_container_swap, + typename allocator_traits<_InnerAllocs>:: + propagate_on_container_swap...>::type + propagate_on_container_swap; + + typedef typename __and_< + typename __traits::is_always_equal, + typename allocator_traits<_InnerAllocs>::is_always_equal...>::type + is_always_equal; + + template + struct rebind + { + typedef scoped_allocator_adaptor< + typename __traits::template rebind_alloc<_Tp>, + _InnerAllocs...> other; + }; + + scoped_allocator_adaptor() : _OuterAlloc(), _M_inner() { } + + template> + scoped_allocator_adaptor(_Outer2&& __outer, + const _InnerAllocs&... __inner) + : _OuterAlloc(std::forward<_Outer2>(__outer)), + _M_inner(__inner...) + { } + + scoped_allocator_adaptor(const scoped_allocator_adaptor& __other) + : _OuterAlloc(__other.outer_allocator()), + _M_inner(__other._M_inner) + { } + + scoped_allocator_adaptor(scoped_allocator_adaptor&& __other) + : _OuterAlloc(std::move(__other.outer_allocator())), + _M_inner(std::move(__other._M_inner)) + { } + + template> + scoped_allocator_adaptor( + const scoped_allocator_adaptor<_Outer2, _InnerAllocs...>& __other) + : _OuterAlloc(__other.outer_allocator()), + _M_inner(__other._M_inner) + { } + + template> + scoped_allocator_adaptor( + scoped_allocator_adaptor<_Outer2, _InnerAllocs...>&& __other) + : _OuterAlloc(std::move(__other.outer_allocator())), + _M_inner(std::move(__other._M_inner)) + { } + + scoped_allocator_adaptor& + operator=(const scoped_allocator_adaptor&) = default; + + scoped_allocator_adaptor& + operator=(scoped_allocator_adaptor&&) = default; + + inner_allocator_type& inner_allocator() noexcept + { return _M_inner._M_get(this); } + + const inner_allocator_type& inner_allocator() const noexcept + { return _M_inner._M_get(this); } + + outer_allocator_type& outer_allocator() noexcept + { return static_cast<_OuterAlloc&>(*this); } + + const outer_allocator_type& outer_allocator() const noexcept + { return static_cast(*this); } + + _GLIBCXX_NODISCARD pointer allocate(size_type __n) + { return __traits::allocate(outer_allocator(), __n); } + + _GLIBCXX_NODISCARD pointer allocate(size_type __n, const_void_pointer __hint) + { return __traits::allocate(outer_allocator(), __n, __hint); } + + void deallocate(pointer __p, size_type __n) + { return __traits::deallocate(outer_allocator(), __p, __n); } + + size_type max_size() const + { return __traits::max_size(outer_allocator()); } + +#if __cplusplus <= 201703 + template + typename __not_pair<_Tp>::type + construct(_Tp* __p, _Args&&... __args) + { + auto& __inner = inner_allocator(); + auto __use_tag + = std::__use_alloc<_Tp, inner_allocator_type, _Args...>(__inner); + _M_construct(__use_tag, __p, std::forward<_Args>(__args)...); + } + + template + void + construct(pair<_T1, _T2>* __p, piecewise_construct_t, + tuple<_Args1...> __x, tuple<_Args2...> __y) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2203. wrong argument types for piecewise construction + auto& __inner = inner_allocator(); + auto __x_use_tag + = std::__use_alloc<_T1, inner_allocator_type, _Args1...>(__inner); + auto __y_use_tag + = std::__use_alloc<_T2, inner_allocator_type, _Args2...>(__inner); + typename _Build_index_tuple::__type __x_indices; + typename _Build_index_tuple::__type __y_indices; + typedef __outermost_alloc_traits _O_traits; + _O_traits::construct(__outermost(*this), __p, piecewise_construct, + _M_construct_p(__x_use_tag, __x_indices, __x), + _M_construct_p(__y_use_tag, __y_indices, __y)); + } + + template + void + construct(pair<_T1, _T2>* __p) + { construct(__p, piecewise_construct, tuple<>(), tuple<>()); } + + template + void + construct(pair<_T1, _T2>* __p, _Up&& __u, _Vp&& __v) + { + construct(__p, piecewise_construct, + std::forward_as_tuple(std::forward<_Up>(__u)), + std::forward_as_tuple(std::forward<_Vp>(__v))); + } + + template + void + construct(pair<_T1, _T2>* __p, const pair<_Up, _Vp>& __x) + { + construct(__p, piecewise_construct, + std::forward_as_tuple(__x.first), + std::forward_as_tuple(__x.second)); + } + + template + void + construct(pair<_T1, _T2>* __p, pair<_Up, _Vp>&& __x) + { + construct(__p, piecewise_construct, + std::forward_as_tuple(std::forward<_Up>(__x.first)), + std::forward_as_tuple(std::forward<_Vp>(__x.second))); + } +#else // C++2a + template + __attribute__((__nonnull__)) + void + construct(_Tp* __p, _Args&&... __args) + { + typedef __outermost_alloc_traits _O_traits; + std::apply([__p, this](auto&&... __newargs) { + _O_traits::construct(__outermost(*this), __p, + std::forward(__newargs)...); + }, + uses_allocator_construction_args<_Tp>(inner_allocator(), + std::forward<_Args>(__args)...)); + } +#endif // C++2a + + template + void destroy(_Tp* __p) + { + typedef __outermost_alloc_traits _O_traits; + _O_traits::destroy(__outermost(*this), __p); + } + + scoped_allocator_adaptor + select_on_container_copy_construction() const + { + typedef typename _Build_index_tuple::__type + _Indices; + return scoped_allocator_adaptor(_M_tie(), _Indices()); + } + + template + friend bool + operator==(const scoped_allocator_adaptor<_OutA1, _InA...>& __a, + const scoped_allocator_adaptor<_OutA2, _InA...>& __b) noexcept; + + private: +#if __cplusplus <= 201703L + template + tuple<_Args&&...> + _M_construct_p(__uses_alloc0, _Ind, tuple<_Args...>& __t) + { return std::move(__t); } + + template + tuple + _M_construct_p(__uses_alloc1_, _Index_tuple<_Ind...>, + tuple<_Args...>& __t) + { + return { allocator_arg, inner_allocator(), + std::get<_Ind>(std::move(__t))... + }; + } + + template + tuple<_Args&&..., inner_allocator_type&> + _M_construct_p(__uses_alloc2_, _Index_tuple<_Ind...>, + tuple<_Args...>& __t) + { + return { std::get<_Ind>(std::move(__t))..., inner_allocator() }; + } +#endif // C++17 + }; + + /// @related std::scoped_allocator_adaptor + template + inline bool + operator==(const scoped_allocator_adaptor<_OutA1, _InA...>& __a, + const scoped_allocator_adaptor<_OutA2, _InA...>& __b) noexcept + { + return __a.outer_allocator() == __b.outer_allocator() + && __a._M_inner == __b._M_inner; + } + +#if __cpp_impl_three_way_comparison < 201907L + /// @related std::scoped_allocator_adaptor + template + inline bool + operator!=(const scoped_allocator_adaptor<_OutA1, _InA...>& __a, + const scoped_allocator_adaptor<_OutA2, _InA...>& __b) noexcept + { return !(__a == __b); } +#endif + + /// @} + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++11 + +#endif // _SCOPED_ALLOCATOR diff --git a/resources/sources/avr-libstdcpp/include/set b/resources/sources/avr-libstdcpp/include/set new file mode 100644 index 000000000..168918346 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/set @@ -0,0 +1,105 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/set + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_SET +#define _GLIBCXX_SET 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template> + using set = std::set<_Key, _Cmp, polymorphic_allocator<_Key>>; + template> + using multiset = std::multiset<_Key, _Cmp, polymorphic_allocator<_Key>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + template + inline typename set<_Key, _Compare, _Alloc>::size_type + erase_if(set<_Key, _Compare, _Alloc>& __cont, _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } + + template + inline typename multiset<_Key, _Compare, _Alloc>::size_type + erase_if(multiset<_Key, _Compare, _Alloc>& __cont, _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif /* _GLIBCXX_SET */ diff --git a/resources/sources/avr-libstdcpp/include/shared_mutex b/resources/sources/avr-libstdcpp/include/shared_mutex new file mode 100644 index 000000000..343886107 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/shared_mutex @@ -0,0 +1,855 @@ +// -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/shared_mutex + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_SHARED_MUTEX +#define _GLIBCXX_SHARED_MUTEX 1 + +#pragma GCC system_header + +#if __cplusplus >= 201402L + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup mutexes + * @{ + */ + +#ifdef _GLIBCXX_HAS_GTHREADS + +#if __cplusplus >= 201703L +#define __cpp_lib_shared_mutex 201505 + class shared_mutex; +#endif + +#define __cpp_lib_shared_timed_mutex 201402 + class shared_timed_mutex; + + /// @cond undocumented + +#if _GLIBCXX_USE_PTHREAD_RWLOCK_T +#ifdef __gthrw +#define _GLIBCXX_GTHRW(name) \ + __gthrw(pthread_ ## name); \ + static inline int \ + __glibcxx_ ## name (pthread_rwlock_t *__rwlock) \ + { \ + if (__gthread_active_p ()) \ + return __gthrw_(pthread_ ## name) (__rwlock); \ + else \ + return 0; \ + } + _GLIBCXX_GTHRW(rwlock_rdlock) + _GLIBCXX_GTHRW(rwlock_tryrdlock) + _GLIBCXX_GTHRW(rwlock_wrlock) + _GLIBCXX_GTHRW(rwlock_trywrlock) + _GLIBCXX_GTHRW(rwlock_unlock) +# ifndef PTHREAD_RWLOCK_INITIALIZER + _GLIBCXX_GTHRW(rwlock_destroy) + __gthrw(pthread_rwlock_init); + static inline int + __glibcxx_rwlock_init (pthread_rwlock_t *__rwlock) + { + if (__gthread_active_p ()) + return __gthrw_(pthread_rwlock_init) (__rwlock, NULL); + else + return 0; + } +# endif +# if _GTHREAD_USE_MUTEX_TIMEDLOCK + __gthrw(pthread_rwlock_timedrdlock); + static inline int + __glibcxx_rwlock_timedrdlock (pthread_rwlock_t *__rwlock, + const timespec *__ts) + { + if (__gthread_active_p ()) + return __gthrw_(pthread_rwlock_timedrdlock) (__rwlock, __ts); + else + return 0; + } + __gthrw(pthread_rwlock_timedwrlock); + static inline int + __glibcxx_rwlock_timedwrlock (pthread_rwlock_t *__rwlock, + const timespec *__ts) + { + if (__gthread_active_p ()) + return __gthrw_(pthread_rwlock_timedwrlock) (__rwlock, __ts); + else + return 0; + } +# endif +#else + static inline int + __glibcxx_rwlock_rdlock (pthread_rwlock_t *__rwlock) + { return pthread_rwlock_rdlock (__rwlock); } + static inline int + __glibcxx_rwlock_tryrdlock (pthread_rwlock_t *__rwlock) + { return pthread_rwlock_tryrdlock (__rwlock); } + static inline int + __glibcxx_rwlock_wrlock (pthread_rwlock_t *__rwlock) + { return pthread_rwlock_wrlock (__rwlock); } + static inline int + __glibcxx_rwlock_trywrlock (pthread_rwlock_t *__rwlock) + { return pthread_rwlock_trywrlock (__rwlock); } + static inline int + __glibcxx_rwlock_unlock (pthread_rwlock_t *__rwlock) + { return pthread_rwlock_unlock (__rwlock); } + static inline int + __glibcxx_rwlock_destroy(pthread_rwlock_t *__rwlock) + { return pthread_rwlock_destroy (__rwlock); } + static inline int + __glibcxx_rwlock_init(pthread_rwlock_t *__rwlock) + { return pthread_rwlock_init (__rwlock, NULL); } +# if _GTHREAD_USE_MUTEX_TIMEDLOCK + static inline int + __glibcxx_rwlock_timedrdlock (pthread_rwlock_t *__rwlock, + const timespec *__ts) + { return pthread_rwlock_timedrdlock (__rwlock, __ts); } + static inline int + __glibcxx_rwlock_timedwrlock (pthread_rwlock_t *__rwlock, + const timespec *__ts) + { return pthread_rwlock_timedwrlock (__rwlock, __ts); } +# endif +#endif + + /// A shared mutex type implemented using pthread_rwlock_t. + class __shared_mutex_pthread + { + friend class shared_timed_mutex; + +#ifdef PTHREAD_RWLOCK_INITIALIZER + pthread_rwlock_t _M_rwlock = PTHREAD_RWLOCK_INITIALIZER; + + public: + __shared_mutex_pthread() = default; + ~__shared_mutex_pthread() = default; +#else + pthread_rwlock_t _M_rwlock; + + public: + __shared_mutex_pthread() + { + int __ret = __glibcxx_rwlock_init(&_M_rwlock); + if (__ret == ENOMEM) + __throw_bad_alloc(); + else if (__ret == EAGAIN) + __throw_system_error(int(errc::resource_unavailable_try_again)); + else if (__ret == EPERM) + __throw_system_error(int(errc::operation_not_permitted)); + // Errors not handled: EBUSY, EINVAL + __glibcxx_assert(__ret == 0); + } + + ~__shared_mutex_pthread() + { + int __ret __attribute((__unused__)) = __glibcxx_rwlock_destroy(&_M_rwlock); + // Errors not handled: EBUSY, EINVAL + __glibcxx_assert(__ret == 0); + } +#endif + + __shared_mutex_pthread(const __shared_mutex_pthread&) = delete; + __shared_mutex_pthread& operator=(const __shared_mutex_pthread&) = delete; + + void + lock() + { + int __ret = __glibcxx_rwlock_wrlock(&_M_rwlock); + if (__ret == EDEADLK) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + } + + bool + try_lock() + { + int __ret = __glibcxx_rwlock_trywrlock(&_M_rwlock); + if (__ret == EBUSY) return false; + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + return true; + } + + void + unlock() + { + int __ret __attribute((__unused__)) = __glibcxx_rwlock_unlock(&_M_rwlock); + // Errors not handled: EPERM, EBUSY, EINVAL + __glibcxx_assert(__ret == 0); + } + + // Shared ownership + + void + lock_shared() + { + int __ret; + // We retry if we exceeded the maximum number of read locks supported by + // the POSIX implementation; this can result in busy-waiting, but this + // is okay based on the current specification of forward progress + // guarantees by the standard. + do + __ret = __glibcxx_rwlock_rdlock(&_M_rwlock); + while (__ret == EAGAIN); + if (__ret == EDEADLK) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + } + + bool + try_lock_shared() + { + int __ret = __glibcxx_rwlock_tryrdlock(&_M_rwlock); + // If the maximum number of read locks has been exceeded, we just fail + // to acquire the lock. Unlike for lock(), we are not allowed to throw + // an exception. + if (__ret == EBUSY || __ret == EAGAIN) return false; + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + return true; + } + + void + unlock_shared() + { + unlock(); + } + + void* native_handle() { return &_M_rwlock; } + }; +#endif + +#if ! (_GLIBCXX_USE_PTHREAD_RWLOCK_T && _GTHREAD_USE_MUTEX_TIMEDLOCK) + /// A shared mutex type implemented using std::condition_variable. + class __shared_mutex_cv + { + friend class shared_timed_mutex; + + // Based on Howard Hinnant's reference implementation from N2406. + + // The high bit of _M_state is the write-entered flag which is set to + // indicate a writer has taken the lock or is queuing to take the lock. + // The remaining bits are the count of reader locks. + // + // To take a reader lock, block on gate1 while the write-entered flag is + // set or the maximum number of reader locks is held, then increment the + // reader lock count. + // To release, decrement the count, then if the write-entered flag is set + // and the count is zero then signal gate2 to wake a queued writer, + // otherwise if the maximum number of reader locks was held signal gate1 + // to wake a reader. + // + // To take a writer lock, block on gate1 while the write-entered flag is + // set, then set the write-entered flag to start queueing, then block on + // gate2 while the number of reader locks is non-zero. + // To release, unset the write-entered flag and signal gate1 to wake all + // blocked readers and writers. + // + // This means that when no reader locks are held readers and writers get + // equal priority. When one or more reader locks is held a writer gets + // priority and no more reader locks can be taken while the writer is + // queued. + + // Only locked when accessing _M_state or waiting on condition variables. + mutex _M_mut; + // Used to block while write-entered is set or reader count at maximum. + condition_variable _M_gate1; + // Used to block queued writers while reader count is non-zero. + condition_variable _M_gate2; + // The write-entered flag and reader count. + unsigned _M_state; + + static constexpr unsigned _S_write_entered + = 1U << (sizeof(unsigned)*__CHAR_BIT__ - 1); + static constexpr unsigned _S_max_readers = ~_S_write_entered; + + // Test whether the write-entered flag is set. _M_mut must be locked. + bool _M_write_entered() const { return _M_state & _S_write_entered; } + + // The number of reader locks currently held. _M_mut must be locked. + unsigned _M_readers() const { return _M_state & _S_max_readers; } + + public: + __shared_mutex_cv() : _M_state(0) {} + + ~__shared_mutex_cv() + { + __glibcxx_assert( _M_state == 0 ); + } + + __shared_mutex_cv(const __shared_mutex_cv&) = delete; + __shared_mutex_cv& operator=(const __shared_mutex_cv&) = delete; + + // Exclusive ownership + + void + lock() + { + unique_lock __lk(_M_mut); + // Wait until we can set the write-entered flag. + _M_gate1.wait(__lk, [=]{ return !_M_write_entered(); }); + _M_state |= _S_write_entered; + // Then wait until there are no more readers. + _M_gate2.wait(__lk, [=]{ return _M_readers() == 0; }); + } + + bool + try_lock() + { + unique_lock __lk(_M_mut, try_to_lock); + if (__lk.owns_lock() && _M_state == 0) + { + _M_state = _S_write_entered; + return true; + } + return false; + } + + void + unlock() + { + lock_guard __lk(_M_mut); + __glibcxx_assert( _M_write_entered() ); + _M_state = 0; + // call notify_all() while mutex is held so that another thread can't + // lock and unlock the mutex then destroy *this before we make the call. + _M_gate1.notify_all(); + } + + // Shared ownership + + void + lock_shared() + { + unique_lock __lk(_M_mut); + _M_gate1.wait(__lk, [=]{ return _M_state < _S_max_readers; }); + ++_M_state; + } + + bool + try_lock_shared() + { + unique_lock __lk(_M_mut, try_to_lock); + if (!__lk.owns_lock()) + return false; + if (_M_state < _S_max_readers) + { + ++_M_state; + return true; + } + return false; + } + + void + unlock_shared() + { + lock_guard __lk(_M_mut); + __glibcxx_assert( _M_readers() > 0 ); + auto __prev = _M_state--; + if (_M_write_entered()) + { + // Wake the queued writer if there are no more readers. + if (_M_readers() == 0) + _M_gate2.notify_one(); + // No need to notify gate1 because we give priority to the queued + // writer, and that writer will eventually notify gate1 after it + // clears the write-entered flag. + } + else + { + // Wake any thread that was blocked on reader overflow. + if (__prev == _S_max_readers) + _M_gate1.notify_one(); + } + } + }; +#endif + /// @endcond + +#if __cplusplus > 201402L + /// The standard shared mutex type. + class shared_mutex + { + public: + shared_mutex() = default; + ~shared_mutex() = default; + + shared_mutex(const shared_mutex&) = delete; + shared_mutex& operator=(const shared_mutex&) = delete; + + // Exclusive ownership + + void lock() { _M_impl.lock(); } + bool try_lock() { return _M_impl.try_lock(); } + void unlock() { _M_impl.unlock(); } + + // Shared ownership + + void lock_shared() { _M_impl.lock_shared(); } + bool try_lock_shared() { return _M_impl.try_lock_shared(); } + void unlock_shared() { _M_impl.unlock_shared(); } + +#if _GLIBCXX_USE_PTHREAD_RWLOCK_T + typedef void* native_handle_type; + native_handle_type native_handle() { return _M_impl.native_handle(); } + + private: + __shared_mutex_pthread _M_impl; +#else + private: + __shared_mutex_cv _M_impl; +#endif + }; +#endif // C++17 + + /// @cond undocumented +#if _GLIBCXX_USE_PTHREAD_RWLOCK_T && _GTHREAD_USE_MUTEX_TIMEDLOCK + using __shared_timed_mutex_base = __shared_mutex_pthread; +#else + using __shared_timed_mutex_base = __shared_mutex_cv; +#endif + /// @endcond + + /// The standard shared timed mutex type. + class shared_timed_mutex + : private __shared_timed_mutex_base + { + using _Base = __shared_timed_mutex_base; + + // Must use the same clock as condition_variable for __shared_mutex_cv. +#ifdef _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK + using __clock_t = chrono::steady_clock; +#else + using __clock_t = chrono::system_clock; +#endif + + public: + shared_timed_mutex() = default; + ~shared_timed_mutex() = default; + + shared_timed_mutex(const shared_timed_mutex&) = delete; + shared_timed_mutex& operator=(const shared_timed_mutex&) = delete; + + // Exclusive ownership + + void lock() { _Base::lock(); } + bool try_lock() { return _Base::try_lock(); } + void unlock() { _Base::unlock(); } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rtime) + { + auto __rt = chrono::duration_cast<__clock_t::duration>(__rtime); + if (ratio_greater<__clock_t::period, _Period>()) + ++__rt; + return try_lock_until(__clock_t::now() + __rt); + } + + // Shared ownership + + void lock_shared() { _Base::lock_shared(); } + bool try_lock_shared() { return _Base::try_lock_shared(); } + void unlock_shared() { _Base::unlock_shared(); } + + template + bool + try_lock_shared_for(const chrono::duration<_Rep, _Period>& __rtime) + { + auto __rt = chrono::duration_cast<__clock_t::duration>(__rtime); + if (ratio_greater<__clock_t::period, _Period>()) + ++__rt; + return try_lock_shared_until(__clock_t::now() + __rt); + } + +#if _GLIBCXX_USE_PTHREAD_RWLOCK_T && _GTHREAD_USE_MUTEX_TIMEDLOCK + + // Exclusive ownership + + template + bool + try_lock_until(const chrono::time_point& __atime) + { + auto __s = chrono::time_point_cast(__atime); + auto __ns = chrono::duration_cast(__atime - __s); + + __gthread_time_t __ts = + { + static_cast(__s.time_since_epoch().count()), + static_cast(__ns.count()) + }; + + int __ret = __glibcxx_rwlock_timedwrlock(&_M_rwlock, &__ts); + // On self-deadlock, we just fail to acquire the lock. Technically, + // the program violated the precondition. + if (__ret == ETIMEDOUT || __ret == EDEADLK) + return false; + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + return true; + } + +#ifdef _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK + template + bool + try_lock_until(const chrono::time_point& __atime) + { + auto __s = chrono::time_point_cast(__atime); + auto __ns = chrono::duration_cast(__atime - __s); + + __gthread_time_t __ts = + { + static_cast(__s.time_since_epoch().count()), + static_cast(__ns.count()) + }; + + int __ret = pthread_rwlock_clockwrlock(&_M_rwlock, CLOCK_MONOTONIC, + &__ts); + // On self-deadlock, we just fail to acquire the lock. Technically, + // the program violated the precondition. + if (__ret == ETIMEDOUT || __ret == EDEADLK) + return false; + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + return true; + } +#endif + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __atime) + { +#if __cplusplus > 201703L + static_assert(chrono::is_clock_v<_Clock>); +#endif + // The user-supplied clock may not tick at the same rate as + // steady_clock, so we must loop in order to guarantee that + // the timeout has expired before returning false. + typename _Clock::time_point __now = _Clock::now(); + do { + auto __rtime = __atime - __now; + if (try_lock_for(__rtime)) + return true; + __now = _Clock::now(); + } while (__atime > __now); + return false; + } + + // Shared ownership + + template + bool + try_lock_shared_until(const chrono::time_point& __atime) + { + auto __s = chrono::time_point_cast(__atime); + auto __ns = chrono::duration_cast(__atime - __s); + + __gthread_time_t __ts = + { + static_cast(__s.time_since_epoch().count()), + static_cast(__ns.count()) + }; + + int __ret; + // Unlike for lock(), we are not allowed to throw an exception so if + // the maximum number of read locks has been exceeded, or we would + // deadlock, we just try to acquire the lock again (and will time out + // eventually). + // In cases where we would exceed the maximum number of read locks + // throughout the whole time until the timeout, we will fail to + // acquire the lock even if it would be logically free; however, this + // is allowed by the standard, and we made a "strong effort" + // (see C++14 30.4.1.4p26). + // For cases where the implementation detects a deadlock we + // intentionally block and timeout so that an early return isn't + // mistaken for a spurious failure, which might help users realise + // there is a deadlock. + do + __ret = __glibcxx_rwlock_timedrdlock(&_M_rwlock, &__ts); + while (__ret == EAGAIN || __ret == EDEADLK); + if (__ret == ETIMEDOUT) + return false; + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + return true; + } + +#ifdef _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK + template + bool + try_lock_shared_until(const chrono::time_point& __atime) + { + auto __s = chrono::time_point_cast(__atime); + auto __ns = chrono::duration_cast(__atime - __s); + + __gthread_time_t __ts = + { + static_cast(__s.time_since_epoch().count()), + static_cast(__ns.count()) + }; + + int __ret = pthread_rwlock_clockrdlock(&_M_rwlock, CLOCK_MONOTONIC, + &__ts); + // On self-deadlock, we just fail to acquire the lock. Technically, + // the program violated the precondition. + if (__ret == ETIMEDOUT || __ret == EDEADLK) + return false; + // Errors not handled: EINVAL + __glibcxx_assert(__ret == 0); + return true; + } +#endif + + template + bool + try_lock_shared_until(const chrono::time_point<_Clock, + _Duration>& __atime) + { +#if __cplusplus > 201703L + static_assert(chrono::is_clock_v<_Clock>); +#endif + // The user-supplied clock may not tick at the same rate as + // steady_clock, so we must loop in order to guarantee that + // the timeout has expired before returning false. + typename _Clock::time_point __now = _Clock::now(); + do { + auto __rtime = __atime - __now; + if (try_lock_shared_for(__rtime)) + return true; + __now = _Clock::now(); + } while (__atime > __now); + return false; + } + +#else // ! (_GLIBCXX_USE_PTHREAD_RWLOCK_T && _GTHREAD_USE_MUTEX_TIMEDLOCK) + + // Exclusive ownership + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __abs_time) + { + unique_lock __lk(_M_mut); + if (!_M_gate1.wait_until(__lk, __abs_time, + [=]{ return !_M_write_entered(); })) + { + return false; + } + _M_state |= _S_write_entered; + if (!_M_gate2.wait_until(__lk, __abs_time, + [=]{ return _M_readers() == 0; })) + { + _M_state ^= _S_write_entered; + // Wake all threads blocked while the write-entered flag was set. + _M_gate1.notify_all(); + return false; + } + return true; + } + + // Shared ownership + + template + bool + try_lock_shared_until(const chrono::time_point<_Clock, + _Duration>& __abs_time) + { + unique_lock __lk(_M_mut); + if (!_M_gate1.wait_until(__lk, __abs_time, + [=]{ return _M_state < _S_max_readers; })) + { + return false; + } + ++_M_state; + return true; + } + +#endif // _GLIBCXX_USE_PTHREAD_RWLOCK_T && _GTHREAD_USE_MUTEX_TIMEDLOCK + }; +#endif // _GLIBCXX_HAS_GTHREADS + + /// shared_lock + template + class shared_lock + { + public: + typedef _Mutex mutex_type; + + // Shared locking + + shared_lock() noexcept : _M_pm(nullptr), _M_owns(false) { } + + explicit + shared_lock(mutex_type& __m) + : _M_pm(std::__addressof(__m)), _M_owns(true) + { __m.lock_shared(); } + + shared_lock(mutex_type& __m, defer_lock_t) noexcept + : _M_pm(std::__addressof(__m)), _M_owns(false) { } + + shared_lock(mutex_type& __m, try_to_lock_t) + : _M_pm(std::__addressof(__m)), _M_owns(__m.try_lock_shared()) { } + + shared_lock(mutex_type& __m, adopt_lock_t) + : _M_pm(std::__addressof(__m)), _M_owns(true) { } + + template + shared_lock(mutex_type& __m, + const chrono::time_point<_Clock, _Duration>& __abs_time) + : _M_pm(std::__addressof(__m)), + _M_owns(__m.try_lock_shared_until(__abs_time)) { } + + template + shared_lock(mutex_type& __m, + const chrono::duration<_Rep, _Period>& __rel_time) + : _M_pm(std::__addressof(__m)), + _M_owns(__m.try_lock_shared_for(__rel_time)) { } + + ~shared_lock() + { + if (_M_owns) + _M_pm->unlock_shared(); + } + + shared_lock(shared_lock const&) = delete; + shared_lock& operator=(shared_lock const&) = delete; + + shared_lock(shared_lock&& __sl) noexcept : shared_lock() + { swap(__sl); } + + shared_lock& + operator=(shared_lock&& __sl) noexcept + { + shared_lock(std::move(__sl)).swap(*this); + return *this; + } + + void + lock() + { + _M_lockable(); + _M_pm->lock_shared(); + _M_owns = true; + } + + bool + try_lock() + { + _M_lockable(); + return _M_owns = _M_pm->try_lock_shared(); + } + + template + bool + try_lock_for(const chrono::duration<_Rep, _Period>& __rel_time) + { + _M_lockable(); + return _M_owns = _M_pm->try_lock_shared_for(__rel_time); + } + + template + bool + try_lock_until(const chrono::time_point<_Clock, _Duration>& __abs_time) + { + _M_lockable(); + return _M_owns = _M_pm->try_lock_shared_until(__abs_time); + } + + void + unlock() + { + if (!_M_owns) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + _M_pm->unlock_shared(); + _M_owns = false; + } + + // Setters + + void + swap(shared_lock& __u) noexcept + { + std::swap(_M_pm, __u._M_pm); + std::swap(_M_owns, __u._M_owns); + } + + mutex_type* + release() noexcept + { + _M_owns = false; + return std::exchange(_M_pm, nullptr); + } + + // Getters + + bool owns_lock() const noexcept { return _M_owns; } + + explicit operator bool() const noexcept { return _M_owns; } + + mutex_type* mutex() const noexcept { return _M_pm; } + + private: + void + _M_lockable() const + { + if (_M_pm == nullptr) + __throw_system_error(int(errc::operation_not_permitted)); + if (_M_owns) + __throw_system_error(int(errc::resource_deadlock_would_occur)); + + } + + mutex_type* _M_pm; + bool _M_owns; + }; + + /// Swap specialization for shared_lock + /// @relates shared_mutex + template + void + swap(shared_lock<_Mutex>& __x, shared_lock<_Mutex>& __y) noexcept + { __x.swap(__y); } + + // @} group mutexes +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif // C++14 + +#endif // _GLIBCXX_SHARED_MUTEX diff --git a/resources/sources/avr-libstdcpp/include/span b/resources/sources/avr-libstdcpp/include/span new file mode 100644 index 000000000..1cdc0589d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/span @@ -0,0 +1,462 @@ +// Components for manipulating non-owning sequences of objects -*- C++ -*- + +// Copyright (C) 2019-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file span + * This is a Standard C++ Library header. + */ + +// +// P0122 span library +// Contributed by ThePhD +// + +#ifndef _GLIBCXX_SPAN +#define _GLIBCXX_SPAN 1 + +#pragma GCC system_header + +#if __cplusplus > 201703L + +#include +#include +#include +#include + +#if __cpp_lib_concepts +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_span 202002L + + inline constexpr size_t dynamic_extent = static_cast(-1); + + template + class span; + + namespace __detail + { + template + struct __is_std_span : false_type { }; + + template + struct __is_std_span> : true_type { }; + + template + struct __is_std_array : false_type { }; + + template + struct __is_std_array<_GLIBCXX_STD_C::array<_Tp, _Num>> : true_type { }; + +#ifdef _GLIBCXX_DEBUG + template + struct __is_std_array<__debug::array<_Tp, _Num>> : true_type { }; +#endif + + template + class __extent_storage + { + public: + constexpr + __extent_storage(size_t) noexcept + { } + + static constexpr size_t + _M_extent() noexcept + { return _Extent; } + }; + + template<> + class __extent_storage + { + public: + constexpr + __extent_storage(size_t __extent) noexcept + : _M_extent_value(__extent) + { } + + constexpr size_t + _M_extent() const noexcept + { return this->_M_extent_value; } + + private: + size_t _M_extent_value; + }; + } // namespace __detail + + template + class span + { + template + static constexpr size_t + _S_subspan_extent() + { + if constexpr (_Count != dynamic_extent) + return _Count; + else if constexpr (extent != dynamic_extent) + return _Extent - _Offset; + else + return dynamic_extent; + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 3255. span's array constructor is too strict + template + requires (_Extent == dynamic_extent || _ArrayExtent == _Extent) + using __is_compatible_array = __is_array_convertible<_Type, _Tp>; + + template + using __is_compatible_ref + = __is_array_convertible<_Type, remove_reference_t<_Ref>>; + + public: + // member types + using element_type = _Type; + using value_type = remove_cv_t<_Type>; + using size_type = size_t; + using difference_type = ptrdiff_t; + using pointer = _Type*; + using const_pointer = const _Type*; + using reference = element_type&; + using const_reference = const element_type&; + using iterator = __gnu_cxx::__normal_iterator; + using reverse_iterator = std::reverse_iterator; + + // member constants + static constexpr size_t extent = _Extent; + + // constructors, copy and assignment + + constexpr + span() noexcept + requires ((_Extent + 1u) <= 1u) + : _M_extent(0), _M_ptr(nullptr) + { } + + template + requires __is_compatible_ref>::value + constexpr explicit(extent != dynamic_extent) + span(_It __first, size_type __count) + noexcept + : _M_extent(__count), _M_ptr(std::to_address(__first)) + { + if constexpr (_Extent != dynamic_extent) + { + __glibcxx_assert(__count == _Extent); + } + } + + template _End> + requires __is_compatible_ref>::value + && (!is_convertible_v<_End, size_type>) + constexpr explicit(extent != dynamic_extent) + span(_It __first, _End __last) + noexcept(noexcept(__last - __first)) + : _M_extent(static_cast(__last - __first)), + _M_ptr(std::to_address(__first)) + { + if constexpr (_Extent != dynamic_extent) + { + __glibcxx_assert((__last - __first) == _Extent); + } + } + + template + requires (_Extent == dynamic_extent || _ArrayExtent == _Extent) + constexpr + span(type_identity_t (&__arr)[_ArrayExtent]) noexcept + : span(static_cast(__arr), _ArrayExtent) + { } + + template + requires __is_compatible_array<_Tp, _ArrayExtent>::value + constexpr + span(array<_Tp, _ArrayExtent>& __arr) noexcept + : span(static_cast(__arr.data()), _ArrayExtent) + { } + + template + requires __is_compatible_array::value + constexpr + span(const array<_Tp, _ArrayExtent>& __arr) noexcept + : span(static_cast(__arr.data()), _ArrayExtent) + { } + + template + requires ranges::contiguous_range<_Range> && ranges::sized_range<_Range> + && (ranges::borrowed_range<_Range> || is_const_v) + && (!__detail::__is_std_span>::value) + && (!__detail::__is_std_array>::value) + && (!is_array_v>) + && __is_compatible_ref>::value + constexpr explicit(extent != dynamic_extent) + span(_Range&& __range) + noexcept(noexcept(ranges::data(__range)) + && noexcept(ranges::size(__range))) + : span(ranges::data(__range), ranges::size(__range)) + { + if constexpr (extent != dynamic_extent) + { + __glibcxx_assert(ranges::size(__range) == extent); + } + } + + constexpr + span(const span&) noexcept = default; + + template + requires (_Extent == dynamic_extent || _OExtent == dynamic_extent + || _Extent == _OExtent) + && (__is_array_convertible<_Type, _OType>::value) + constexpr + explicit(extent != dynamic_extent && _OExtent == dynamic_extent) + span(const span<_OType, _OExtent>& __s) noexcept + : _M_extent(__s.size()), _M_ptr(__s.data()) + { + if constexpr (extent != dynamic_extent) + { + __glibcxx_assert(__s.size() == extent); + } + } + + ~span() noexcept = default; + + constexpr span& + operator=(const span&) noexcept = default; + + // observers + + constexpr size_type + size() const noexcept + { return this->_M_extent._M_extent(); } + + constexpr size_type + size_bytes() const noexcept + { return this->_M_extent._M_extent() * sizeof(element_type); } + + [[nodiscard]] constexpr bool + empty() const noexcept + { return size() == 0; } + + // element access + + constexpr reference + front() const noexcept + { + __glibcxx_assert(!empty()); + return *this->_M_ptr; + } + + constexpr reference + back() const noexcept + { + __glibcxx_assert(!empty()); + return *(this->_M_ptr + (size() - 1)); + } + + constexpr reference + operator[](size_type __idx) const noexcept + { + __glibcxx_assert(__idx < size()); + return *(this->_M_ptr + __idx); + } + + constexpr pointer + data() const noexcept + { return this->_M_ptr; } + + // iterator support + + constexpr iterator + begin() const noexcept + { return iterator(this->_M_ptr); } + + constexpr iterator + end() const noexcept + { return iterator(this->_M_ptr + this->size()); } + + constexpr reverse_iterator + rbegin() const noexcept + { return reverse_iterator(this->end()); } + + constexpr reverse_iterator + rend() const noexcept + { return reverse_iterator(this->begin()); } + + // subviews + + template + constexpr span + first() const noexcept + { + if constexpr (_Extent == dynamic_extent) + __glibcxx_assert(_Count <= size()); + else + static_assert(_Count <= extent); + using _Sp = span; + return _Sp{ this->data(), _Count }; + } + + constexpr span + first(size_type __count) const noexcept + { + __glibcxx_assert(__count <= size()); + return { this->data(), __count }; + } + + template + constexpr span + last() const noexcept + { + if constexpr (_Extent == dynamic_extent) + __glibcxx_assert(_Count <= size()); + else + static_assert(_Count <= extent); + using _Sp = span; + return _Sp{ this->data() + (this->size() - _Count), _Count }; + } + + constexpr span + last(size_type __count) const noexcept + { + __glibcxx_assert(__count <= size()); + return { this->data() + (this->size() - __count), __count }; + } + + template + constexpr auto + subspan() const noexcept + -> span()> + { + if constexpr (_Extent == dynamic_extent) + { + __glibcxx_assert(_Offset <= size()); + } + else + static_assert(_Offset <= extent); + + using _Sp = span()>; + + if constexpr (_Count == dynamic_extent) + return _Sp{ this->data() + _Offset, this->size() - _Offset }; + else + { + if constexpr (_Extent == dynamic_extent) + { + __glibcxx_assert(_Count <= size()); + __glibcxx_assert(_Count <= (size() - _Offset)); + } + else + { + static_assert(_Count <= extent); + static_assert(_Count <= (extent - _Offset)); + } + return _Sp{ this->data() + _Offset, _Count }; + } + } + + constexpr span + subspan(size_type __offset, size_type __count = dynamic_extent) const + noexcept + { + __glibcxx_assert(__offset <= size()); + if (__count == dynamic_extent) + __count = this->size() - __offset; + else + { + __glibcxx_assert(__count <= size()); + __glibcxx_assert(__offset + __count <= size()); + } + return {this->data() + __offset, __count}; + } + + private: + [[no_unique_address]] __detail::__extent_storage _M_extent; + pointer _M_ptr; + }; + + // deduction guides + + template + span(_Type(&)[_ArrayExtent]) -> span<_Type, _ArrayExtent>; + + template + span(array<_Type, _ArrayExtent>&) -> span<_Type, _ArrayExtent>; + + template + span(const array<_Type, _ArrayExtent>&) + -> span; + + template + span(_Iter, _End) + -> span>>; + + template + span(_Range &&) + -> span>>; + + template + inline + span + as_bytes(span<_Type, _Extent> __sp) noexcept + { + auto data = reinterpret_cast(__sp.data()); + auto size = __sp.size_bytes(); + constexpr auto extent = _Extent == dynamic_extent + ? dynamic_extent : _Extent * sizeof(_Type); + return span{data, size}; + } + + template + inline + span + as_writable_bytes(span<_Type, _Extent> __sp) noexcept + { + auto data = reinterpret_cast(__sp.data()); + auto size = __sp.size_bytes(); + constexpr auto extent = _Extent == dynamic_extent + ? dynamic_extent : _Extent * sizeof(_Type); + return span{data, size}; + } + + namespace ranges + { + // Opt-in to borrowed_range concept + template + inline constexpr bool + enable_borrowed_range> = true; + + // Opt-in to view concept + template + inline constexpr bool + enable_view> + = _Extent == 0 || _Extent == dynamic_extent; + } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // concepts +#endif // C++20 +#endif // _GLIBCXX_SPAN diff --git a/resources/sources/avr-libstdcpp/include/stack b/resources/sources/avr-libstdcpp/include/stack new file mode 100644 index 000000000..064b3583a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/stack @@ -0,0 +1,63 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/stack + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_STACK +#define _GLIBCXX_STACK 1 + +#pragma GCC system_header + +#include +#include + +#endif /* _GLIBCXX_STACK */ diff --git a/resources/sources/avr-libstdcpp/include/string b/resources/sources/avr-libstdcpp/include/string new file mode 100644 index 000000000..03acb5d6b --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/string @@ -0,0 +1,18 @@ +// -*- C++ -*- +// OpenPLC Editor stub for on AVR. +// +// modm-io/avr-libstdcpp intentionally excludes because std::string +// requires heap allocation, exceptions, and a hosted environment, none of +// which are appropriate for AVR targets. +// +// STruC++ generated code emits `#include ` unconditionally in its +// header preamble, but never actually uses std::string — it uses its own +// IECString template (stack-allocated, fixed-size) for IEC STRING +// variables. This stub satisfies the include without providing the type. +// +// If you do try to use std::string on AVR with this stub, you'll get a +// clear compile error rather than a silent misbehavior. + +#ifndef _OPENPLC_AVR_STRING_STUB +#define _OPENPLC_AVR_STRING_STUB +#endif diff --git a/resources/sources/avr-libstdcpp/include/string_view b/resources/sources/avr-libstdcpp/include/string_view new file mode 100644 index 000000000..487088c7e --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/string_view @@ -0,0 +1,758 @@ +// Components for manipulating non-owning sequences of characters -*- C++ -*- + +// Copyright (C) 2013-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file string_view + * This is a Standard C++ Library header. + */ + +// +// N3762 basic_string_view library +// + +#ifndef _GLIBCXX_STRING_VIEW +#define _GLIBCXX_STRING_VIEW 1 + +#pragma GCC system_header + +#if __cplusplus >= 201703L + +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +# define __cpp_lib_string_view 201803L +#if __cplusplus > 201703L +# define __cpp_lib_constexpr_string_view 201811L +#endif + + // Helper for basic_string and basic_string_view members. + constexpr size_t + __sv_check(size_t __size, size_t __pos, const char* __s) + { + if (__pos > __size) + __throw_out_of_range_fmt(__N("%s: __pos (which is %zu) > __size " + "(which is %zu)"), __s, __pos, __size); + return __pos; + } + + // Helper for basic_string members. + // NB: __sv_limit doesn't check for a bad __pos value. + constexpr size_t + __sv_limit(size_t __size, size_t __pos, size_t __off) noexcept + { + const bool __testoff = __off < __size - __pos; + return __testoff ? __off : __size - __pos; + } + + /** + * @class basic_string_view + * @brief A non-owning reference to a string. + * + * @ingroup strings + * @ingroup sequences + * + * @tparam _CharT Type of character + * @tparam _Traits Traits for character type, defaults to + * char_traits<_CharT>. + * + * A basic_string_view looks like this: + * + * @code + * _CharT* _M_str + * size_t _M_len + * @endcode + */ + template> + class basic_string_view + { + static_assert(!is_array_v<_CharT>); + static_assert(is_trivial_v<_CharT> && is_standard_layout_v<_CharT>); + static_assert(is_same_v<_CharT, typename _Traits::char_type>); + + public: + + // types + using traits_type = _Traits; + using value_type = _CharT; + using pointer = value_type*; + using const_pointer = const value_type*; + using reference = value_type&; + using const_reference = const value_type&; + using const_iterator = const value_type*; + using iterator = const_iterator; + using const_reverse_iterator = std::reverse_iterator; + using reverse_iterator = const_reverse_iterator; + using size_type = size_t; + using difference_type = ptrdiff_t; + static constexpr size_type npos = size_type(-1); + + // [string.view.cons], construction and assignment + + constexpr + basic_string_view() noexcept + : _M_len{0}, _M_str{nullptr} + { } + + constexpr basic_string_view(const basic_string_view&) noexcept = default; + + __attribute__((__nonnull__)) constexpr + basic_string_view(const _CharT* __str) noexcept + : _M_len{traits_type::length(__str)}, + _M_str{__str} + { } + + constexpr + basic_string_view(const _CharT* __str, size_type __len) noexcept + : _M_len{__len}, _M_str{__str} + { } + +#if __cplusplus > 201703L && __cpp_lib_concepts + template _End> + requires same_as, _CharT> + && (!convertible_to<_End, size_type>) + constexpr + basic_string_view(_It __first, _End __last) + : _M_len(__last - __first), _M_str(std::to_address(__first)) + { } +#endif + + constexpr basic_string_view& + operator=(const basic_string_view&) noexcept = default; + + // [string.view.iterators], iterator support + + constexpr const_iterator + begin() const noexcept + { return this->_M_str; } + + constexpr const_iterator + end() const noexcept + { return this->_M_str + this->_M_len; } + + constexpr const_iterator + cbegin() const noexcept + { return this->_M_str; } + + constexpr const_iterator + cend() const noexcept + { return this->_M_str + this->_M_len; } + + constexpr const_reverse_iterator + rbegin() const noexcept + { return const_reverse_iterator(this->end()); } + + constexpr const_reverse_iterator + rend() const noexcept + { return const_reverse_iterator(this->begin()); } + + constexpr const_reverse_iterator + crbegin() const noexcept + { return const_reverse_iterator(this->end()); } + + constexpr const_reverse_iterator + crend() const noexcept + { return const_reverse_iterator(this->begin()); } + + // [string.view.capacity], capacity + + constexpr size_type + size() const noexcept + { return this->_M_len; } + + constexpr size_type + length() const noexcept + { return _M_len; } + + constexpr size_type + max_size() const noexcept + { + return (npos - sizeof(size_type) - sizeof(void*)) + / sizeof(value_type) / 4; + } + + [[nodiscard]] constexpr bool + empty() const noexcept + { return this->_M_len == 0; } + + // [string.view.access], element access + + constexpr const_reference + operator[](size_type __pos) const noexcept + { + __glibcxx_assert(__pos < this->_M_len); + return *(this->_M_str + __pos); + } + + constexpr const_reference + at(size_type __pos) const + { + if (__pos >= _M_len) + __throw_out_of_range_fmt(__N("basic_string_view::at: __pos " + "(which is %zu) >= this->size() " + "(which is %zu)"), __pos, this->size()); + return *(this->_M_str + __pos); + } + + constexpr const_reference + front() const noexcept + { + __glibcxx_assert(this->_M_len > 0); + return *this->_M_str; + } + + constexpr const_reference + back() const noexcept + { + __glibcxx_assert(this->_M_len > 0); + return *(this->_M_str + this->_M_len - 1); + } + + constexpr const_pointer + data() const noexcept + { return this->_M_str; } + + // [string.view.modifiers], modifiers: + + constexpr void + remove_prefix(size_type __n) noexcept + { + __glibcxx_assert(this->_M_len >= __n); + this->_M_str += __n; + this->_M_len -= __n; + } + + constexpr void + remove_suffix(size_type __n) noexcept + { this->_M_len -= __n; } + + constexpr void + swap(basic_string_view& __sv) noexcept + { + auto __tmp = *this; + *this = __sv; + __sv = __tmp; + } + + // [string.view.ops], string operations: + + _GLIBCXX20_CONSTEXPR + size_type + copy(_CharT* __str, size_type __n, size_type __pos = 0) const + { + __glibcxx_requires_string_len(__str, __n); + __pos = std::__sv_check(size(), __pos, "basic_string_view::copy"); + const size_type __rlen = std::min(__n, _M_len - __pos); + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2777. basic_string_view::copy should use char_traits::copy + traits_type::copy(__str, data() + __pos, __rlen); + return __rlen; + } + + constexpr basic_string_view + substr(size_type __pos = 0, size_type __n = npos) const noexcept(false) + { + __pos = std::__sv_check(size(), __pos, "basic_string_view::substr"); + const size_type __rlen = std::min(__n, _M_len - __pos); + return basic_string_view{_M_str + __pos, __rlen}; + } + + constexpr int + compare(basic_string_view __str) const noexcept + { + const size_type __rlen = std::min(this->_M_len, __str._M_len); + int __ret = traits_type::compare(this->_M_str, __str._M_str, __rlen); + if (__ret == 0) + __ret = _S_compare(this->_M_len, __str._M_len); + return __ret; + } + + constexpr int + compare(size_type __pos1, size_type __n1, basic_string_view __str) const + { return this->substr(__pos1, __n1).compare(__str); } + + constexpr int + compare(size_type __pos1, size_type __n1, + basic_string_view __str, size_type __pos2, size_type __n2) const + { + return this->substr(__pos1, __n1).compare(__str.substr(__pos2, __n2)); + } + + __attribute__((__nonnull__)) constexpr int + compare(const _CharT* __str) const noexcept + { return this->compare(basic_string_view{__str}); } + + __attribute__((__nonnull__)) constexpr int + compare(size_type __pos1, size_type __n1, const _CharT* __str) const + { return this->substr(__pos1, __n1).compare(basic_string_view{__str}); } + + constexpr int + compare(size_type __pos1, size_type __n1, + const _CharT* __str, size_type __n2) const noexcept(false) + { + return this->substr(__pos1, __n1) + .compare(basic_string_view(__str, __n2)); + } + +#if __cplusplus > 201703L +#define __cpp_lib_starts_ends_with 201711L + constexpr bool + starts_with(basic_string_view __x) const noexcept + { return this->substr(0, __x.size()) == __x; } + + constexpr bool + starts_with(_CharT __x) const noexcept + { return !this->empty() && traits_type::eq(this->front(), __x); } + + constexpr bool + starts_with(const _CharT* __x) const noexcept + { return this->starts_with(basic_string_view(__x)); } + + constexpr bool + ends_with(basic_string_view __x) const noexcept + { + return this->size() >= __x.size() + && this->compare(this->size() - __x.size(), npos, __x) == 0; + } + + constexpr bool + ends_with(_CharT __x) const noexcept + { return !this->empty() && traits_type::eq(this->back(), __x); } + + constexpr bool + ends_with(const _CharT* __x) const noexcept + { return this->ends_with(basic_string_view(__x)); } +#endif // C++20 + + // [string.view.find], searching + + constexpr size_type + find(basic_string_view __str, size_type __pos = 0) const noexcept + { return this->find(__str._M_str, __pos, __str._M_len); } + + constexpr size_type + find(_CharT __c, size_type __pos = 0) const noexcept; + + constexpr size_type + find(const _CharT* __str, size_type __pos, size_type __n) const noexcept; + + __attribute__((__nonnull__)) constexpr size_type + find(const _CharT* __str, size_type __pos = 0) const noexcept + { return this->find(__str, __pos, traits_type::length(__str)); } + + constexpr size_type + rfind(basic_string_view __str, size_type __pos = npos) const noexcept + { return this->rfind(__str._M_str, __pos, __str._M_len); } + + constexpr size_type + rfind(_CharT __c, size_type __pos = npos) const noexcept; + + constexpr size_type + rfind(const _CharT* __str, size_type __pos, size_type __n) const noexcept; + + __attribute__((__nonnull__)) constexpr size_type + rfind(const _CharT* __str, size_type __pos = npos) const noexcept + { return this->rfind(__str, __pos, traits_type::length(__str)); } + + constexpr size_type + find_first_of(basic_string_view __str, size_type __pos = 0) const noexcept + { return this->find_first_of(__str._M_str, __pos, __str._M_len); } + + constexpr size_type + find_first_of(_CharT __c, size_type __pos = 0) const noexcept + { return this->find(__c, __pos); } + + constexpr size_type + find_first_of(const _CharT* __str, size_type __pos, + size_type __n) const noexcept; + + __attribute__((__nonnull__)) constexpr size_type + find_first_of(const _CharT* __str, size_type __pos = 0) const noexcept + { return this->find_first_of(__str, __pos, traits_type::length(__str)); } + + constexpr size_type + find_last_of(basic_string_view __str, + size_type __pos = npos) const noexcept + { return this->find_last_of(__str._M_str, __pos, __str._M_len); } + + constexpr size_type + find_last_of(_CharT __c, size_type __pos=npos) const noexcept + { return this->rfind(__c, __pos); } + + constexpr size_type + find_last_of(const _CharT* __str, size_type __pos, + size_type __n) const noexcept; + + __attribute__((__nonnull__)) constexpr size_type + find_last_of(const _CharT* __str, size_type __pos = npos) const noexcept + { return this->find_last_of(__str, __pos, traits_type::length(__str)); } + + constexpr size_type + find_first_not_of(basic_string_view __str, + size_type __pos = 0) const noexcept + { return this->find_first_not_of(__str._M_str, __pos, __str._M_len); } + + constexpr size_type + find_first_not_of(_CharT __c, size_type __pos = 0) const noexcept; + + constexpr size_type + find_first_not_of(const _CharT* __str, + size_type __pos, size_type __n) const noexcept; + + __attribute__((__nonnull__)) constexpr size_type + find_first_not_of(const _CharT* __str, size_type __pos = 0) const noexcept + { + return this->find_first_not_of(__str, __pos, + traits_type::length(__str)); + } + + constexpr size_type + find_last_not_of(basic_string_view __str, + size_type __pos = npos) const noexcept + { return this->find_last_not_of(__str._M_str, __pos, __str._M_len); } + + constexpr size_type + find_last_not_of(_CharT __c, size_type __pos = npos) const noexcept; + + constexpr size_type + find_last_not_of(const _CharT* __str, + size_type __pos, size_type __n) const noexcept; + + __attribute__((__nonnull__)) constexpr size_type + find_last_not_of(const _CharT* __str, + size_type __pos = npos) const noexcept + { + return this->find_last_not_of(__str, __pos, + traits_type::length(__str)); + } + + private: + + static constexpr int + _S_compare(size_type __n1, size_type __n2) noexcept + { + const difference_type __diff = __n1 - __n2; + if (__diff > __gnu_cxx::__int_traits::__max) + return __gnu_cxx::__int_traits::__max; + if (__diff < __gnu_cxx::__int_traits::__min) + return __gnu_cxx::__int_traits::__min; + return static_cast(__diff); + } + + size_t _M_len; + const _CharT* _M_str; + }; + +#if __cplusplus > 201703L && __cpp_lib_concepts && __cpp_deduction_guides + template _End> + basic_string_view(_It, _End) -> basic_string_view>; +#endif + + // [string.view.comparison], non-member basic_string_view comparison function + + // Several of these functions use type_identity_t to create a non-deduced + // context, so that only one argument participates in template argument + // deduction and the other argument gets implicitly converted to the deduced + // type (see N3766). + + template + constexpr bool + operator==(basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.size() == __y.size() && __x.compare(__y) == 0; } + + template + constexpr bool + operator==(basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + { return __x.size() == __y.size() && __x.compare(__y) == 0; } + +#if __cpp_lib_three_way_comparison + template + constexpr auto + operator<=>(basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) + { return __detail::__char_traits_cmp_cat<_Traits>(__x.compare(__y)); } + + template + constexpr auto + operator<=>(basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + -> decltype(__detail::__char_traits_cmp_cat<_Traits>(0)) + { return __detail::__char_traits_cmp_cat<_Traits>(__x.compare(__y)); } +#else + template + constexpr bool + operator==(__type_identity_t> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.size() == __y.size() && __x.compare(__y) == 0; } + + template + constexpr bool + operator!=(basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return !(__x == __y); } + + template + constexpr bool + operator!=(basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + { return !(__x == __y); } + + template + constexpr bool + operator!=(__type_identity_t> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return !(__x == __y); } + + template + constexpr bool + operator< (basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) < 0; } + + template + constexpr bool + operator< (basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + { return __x.compare(__y) < 0; } + + template + constexpr bool + operator< (__type_identity_t> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) < 0; } + + template + constexpr bool + operator> (basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) > 0; } + + template + constexpr bool + operator> (basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + { return __x.compare(__y) > 0; } + + template + constexpr bool + operator> (__type_identity_t> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) > 0; } + + template + constexpr bool + operator<=(basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) <= 0; } + + template + constexpr bool + operator<=(basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + { return __x.compare(__y) <= 0; } + + template + constexpr bool + operator<=(__type_identity_t> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) <= 0; } + + template + constexpr bool + operator>=(basic_string_view<_CharT, _Traits> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) >= 0; } + + template + constexpr bool + operator>=(basic_string_view<_CharT, _Traits> __x, + __type_identity_t> __y) + noexcept + { return __x.compare(__y) >= 0; } + + template + constexpr bool + operator>=(__type_identity_t> __x, + basic_string_view<_CharT, _Traits> __y) noexcept + { return __x.compare(__y) >= 0; } +#endif // three-way comparison + + // basic_string_view typedef names + + using string_view = basic_string_view; +#ifdef _GLIBCXX_USE_WCHAR_T + using wstring_view = basic_string_view; +#endif +#ifdef _GLIBCXX_USE_CHAR8_T + using u8string_view = basic_string_view; +#endif + using u16string_view = basic_string_view; + using u32string_view = basic_string_view; + + // [string.view.hash], hash support: + + template + struct hash; + + template<> + struct hash + : public __hash_base + { + size_t + operator()(const string_view& __str) const noexcept + { return std::_Hash_impl::hash(__str.data(), __str.length()); } + }; + + template<> + struct __is_fast_hash> : std::false_type + { }; + +#ifdef _GLIBCXX_USE_WCHAR_T + template<> + struct hash + : public __hash_base + { + size_t + operator()(const wstring_view& __s) const noexcept + { return std::_Hash_impl::hash(__s.data(), + __s.length() * sizeof(wchar_t)); } + }; + + template<> + struct __is_fast_hash> : std::false_type + { }; +#endif + +#ifdef _GLIBCXX_USE_CHAR8_T + template<> + struct hash + : public __hash_base + { + size_t + operator()(const u8string_view& __str) const noexcept + { return std::_Hash_impl::hash(__str.data(), __str.length()); } + }; + + template<> + struct __is_fast_hash> : std::false_type + { }; +#endif + + template<> + struct hash + : public __hash_base + { + size_t + operator()(const u16string_view& __s) const noexcept + { return std::_Hash_impl::hash(__s.data(), + __s.length() * sizeof(char16_t)); } + }; + + template<> + struct __is_fast_hash> : std::false_type + { }; + + template<> + struct hash + : public __hash_base + { + size_t + operator()(const u32string_view& __s) const noexcept + { return std::_Hash_impl::hash(__s.data(), + __s.length() * sizeof(char32_t)); } + }; + + template<> + struct __is_fast_hash> : std::false_type + { }; + + inline namespace literals + { + inline namespace string_view_literals + { +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wliteral-suffix" + inline constexpr basic_string_view + operator""sv(const char* __str, size_t __len) noexcept + { return basic_string_view{__str, __len}; } + +#ifdef _GLIBCXX_USE_WCHAR_T + inline constexpr basic_string_view + operator""sv(const wchar_t* __str, size_t __len) noexcept + { return basic_string_view{__str, __len}; } +#endif + +#ifdef _GLIBCXX_USE_CHAR8_T + inline constexpr basic_string_view + operator""sv(const char8_t* __str, size_t __len) noexcept + { return basic_string_view{__str, __len}; } +#endif + + inline constexpr basic_string_view + operator""sv(const char16_t* __str, size_t __len) noexcept + { return basic_string_view{__str, __len}; } + + inline constexpr basic_string_view + operator""sv(const char32_t* __str, size_t __len) noexcept + { return basic_string_view{__str, __len}; } + +#pragma GCC diagnostic pop + } // namespace string_literals + } // namespace literals + +#if __cpp_lib_concepts + namespace ranges + { + // Opt-in to borrowed_range concept + template + inline constexpr bool + enable_borrowed_range> = true; + + // Opt-in to view concept + template + inline constexpr bool + enable_view> = true; + } +#endif +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#include + +#endif // __cplusplus <= 201402L + +#endif // _GLIBCXX_EXPERIMENTAL_STRING_VIEW diff --git a/resources/sources/avr-libstdcpp/include/tuple b/resources/sources/avr-libstdcpp/include/tuple new file mode 100644 index 000000000..94b9e0335 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/tuple @@ -0,0 +1,1764 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/tuple + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_TUPLE +#define _GLIBCXX_TUPLE 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include +#if __cplusplus > 201703L +# include +# define __cpp_lib_constexpr_tuple 201811L +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup utilities + * @{ + */ + + template + class tuple; + + template + struct __is_empty_non_tuple : is_empty<_Tp> { }; + + // Using EBO for elements that are tuples causes ambiguous base errors. + template + struct __is_empty_non_tuple> : false_type { }; + + // Use the Empty Base-class Optimization for empty, non-final types. + template + using __empty_not_final + = typename conditional<__is_final(_Tp), false_type, + __is_empty_non_tuple<_Tp>>::type; + + template::value> + struct _Head_base; + + template + struct _Head_base<_Idx, _Head, true> + : public _Head + { + constexpr _Head_base() + : _Head() { } + + constexpr _Head_base(const _Head& __h) + : _Head(__h) { } + + constexpr _Head_base(const _Head_base&) = default; + constexpr _Head_base(_Head_base&&) = default; + + template + constexpr _Head_base(_UHead&& __h) + : _Head(std::forward<_UHead>(__h)) { } + + _Head_base(allocator_arg_t, __uses_alloc0) + : _Head() { } + + template + _Head_base(allocator_arg_t, __uses_alloc1<_Alloc> __a) + : _Head(allocator_arg, *__a._M_a) { } + + template + _Head_base(allocator_arg_t, __uses_alloc2<_Alloc> __a) + : _Head(*__a._M_a) { } + + template + _Head_base(__uses_alloc0, _UHead&& __uhead) + : _Head(std::forward<_UHead>(__uhead)) { } + + template + _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead) + : _Head(allocator_arg, *__a._M_a, std::forward<_UHead>(__uhead)) { } + + template + _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead) + : _Head(std::forward<_UHead>(__uhead), *__a._M_a) { } + + static constexpr _Head& + _M_head(_Head_base& __b) noexcept { return __b; } + + static constexpr const _Head& + _M_head(const _Head_base& __b) noexcept { return __b; } + }; + + template + struct _Head_base<_Idx, _Head, false> + { + constexpr _Head_base() + : _M_head_impl() { } + + constexpr _Head_base(const _Head& __h) + : _M_head_impl(__h) { } + + constexpr _Head_base(const _Head_base&) = default; + constexpr _Head_base(_Head_base&&) = default; + + template + constexpr _Head_base(_UHead&& __h) + : _M_head_impl(std::forward<_UHead>(__h)) { } + + _GLIBCXX20_CONSTEXPR + _Head_base(allocator_arg_t, __uses_alloc0) + : _M_head_impl() { } + + template + _Head_base(allocator_arg_t, __uses_alloc1<_Alloc> __a) + : _M_head_impl(allocator_arg, *__a._M_a) { } + + template + _Head_base(allocator_arg_t, __uses_alloc2<_Alloc> __a) + : _M_head_impl(*__a._M_a) { } + + template + _GLIBCXX20_CONSTEXPR + _Head_base(__uses_alloc0, _UHead&& __uhead) + : _M_head_impl(std::forward<_UHead>(__uhead)) { } + + template + _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead) + : _M_head_impl(allocator_arg, *__a._M_a, std::forward<_UHead>(__uhead)) + { } + + template + _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead) + : _M_head_impl(std::forward<_UHead>(__uhead), *__a._M_a) { } + + static constexpr _Head& + _M_head(_Head_base& __b) noexcept { return __b._M_head_impl; } + + static constexpr const _Head& + _M_head(const _Head_base& __b) noexcept { return __b._M_head_impl; } + + _Head _M_head_impl; + }; + + /** + * Contains the actual implementation of the @c tuple template, stored + * as a recursive inheritance hierarchy from the first element (most + * derived class) to the last (least derived class). The @c Idx + * parameter gives the 0-based index of the element stored at this + * point in the hierarchy; we use it to implement a constant-time + * get() operation. + */ + template + struct _Tuple_impl; + + /** + * Recursive tuple implementation. Here we store the @c Head element + * and derive from a @c Tuple_impl containing the remaining elements + * (which contains the @c Tail). + */ + template + struct _Tuple_impl<_Idx, _Head, _Tail...> + : public _Tuple_impl<_Idx + 1, _Tail...>, + private _Head_base<_Idx, _Head> + { + template friend class _Tuple_impl; + + typedef _Tuple_impl<_Idx + 1, _Tail...> _Inherited; + typedef _Head_base<_Idx, _Head> _Base; + + static constexpr _Head& + _M_head(_Tuple_impl& __t) noexcept { return _Base::_M_head(__t); } + + static constexpr const _Head& + _M_head(const _Tuple_impl& __t) noexcept { return _Base::_M_head(__t); } + + static constexpr _Inherited& + _M_tail(_Tuple_impl& __t) noexcept { return __t; } + + static constexpr const _Inherited& + _M_tail(const _Tuple_impl& __t) noexcept { return __t; } + + constexpr _Tuple_impl() + : _Inherited(), _Base() { } + + explicit + constexpr _Tuple_impl(const _Head& __head, const _Tail&... __tail) + : _Inherited(__tail...), _Base(__head) { } + + template::type> + explicit + constexpr _Tuple_impl(_UHead&& __head, _UTail&&... __tail) + : _Inherited(std::forward<_UTail>(__tail)...), + _Base(std::forward<_UHead>(__head)) { } + + constexpr _Tuple_impl(const _Tuple_impl&) = default; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2729. Missing SFINAE on std::pair::operator= + _Tuple_impl& operator=(const _Tuple_impl&) = delete; + + constexpr + _Tuple_impl(_Tuple_impl&& __in) + noexcept(__and_, + is_nothrow_move_constructible<_Inherited>>::value) + : _Inherited(std::move(_M_tail(__in))), + _Base(std::forward<_Head>(_M_head(__in))) { } + + template + constexpr _Tuple_impl(const _Tuple_impl<_Idx, _UElements...>& __in) + : _Inherited(_Tuple_impl<_Idx, _UElements...>::_M_tail(__in)), + _Base(_Tuple_impl<_Idx, _UElements...>::_M_head(__in)) { } + + template + constexpr _Tuple_impl(_Tuple_impl<_Idx, _UHead, _UTails...>&& __in) + : _Inherited(std::move + (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))), + _Base(std::forward<_UHead> + (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in))) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a) + : _Inherited(__tag, __a), + _Base(__tag, __use_alloc<_Head>(__a)) { } + + template + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + const _Head& __head, const _Tail&... __tail) + : _Inherited(__tag, __a, __tail...), + _Base(__use_alloc<_Head, _Alloc, _Head>(__a), __head) { } + + template::type> + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + _UHead&& __head, _UTail&&... __tail) + : _Inherited(__tag, __a, std::forward<_UTail>(__tail)...), + _Base(__use_alloc<_Head, _Alloc, _UHead>(__a), + std::forward<_UHead>(__head)) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + const _Tuple_impl& __in) + : _Inherited(__tag, __a, _M_tail(__in)), + _Base(__use_alloc<_Head, _Alloc, _Head>(__a), _M_head(__in)) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + _Tuple_impl&& __in) + : _Inherited(__tag, __a, std::move(_M_tail(__in))), + _Base(__use_alloc<_Head, _Alloc, _Head>(__a), + std::forward<_Head>(_M_head(__in))) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + const _Tuple_impl<_Idx, _UHead, _UTails...>& __in) + : _Inherited(__tag, __a, + _Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in)), + _Base(__use_alloc<_Head, _Alloc, const _UHead&>(__a), + _Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in)) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + _Tuple_impl<_Idx, _UHead, _UTails...>&& __in) + : _Inherited(__tag, __a, std::move + (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))), + _Base(__use_alloc<_Head, _Alloc, _UHead>(__a), + std::forward<_UHead> + (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in))) { } + + template + _GLIBCXX20_CONSTEXPR + void + _M_assign(const _Tuple_impl<_Idx, _UElements...>& __in) + { + _M_head(*this) = _Tuple_impl<_Idx, _UElements...>::_M_head(__in); + _M_tail(*this)._M_assign( + _Tuple_impl<_Idx, _UElements...>::_M_tail(__in)); + } + + template + _GLIBCXX20_CONSTEXPR + void + _M_assign(_Tuple_impl<_Idx, _UHead, _UTails...>&& __in) + { + _M_head(*this) = std::forward<_UHead> + (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in)); + _M_tail(*this)._M_assign( + std::move(_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))); + } + + protected: + _GLIBCXX20_CONSTEXPR + void + _M_swap(_Tuple_impl& __in) + { + using std::swap; + swap(_M_head(*this), _M_head(__in)); + _Inherited::_M_swap(_M_tail(__in)); + } + }; + + // Basis case of inheritance recursion. + template + struct _Tuple_impl<_Idx, _Head> + : private _Head_base<_Idx, _Head> + { + template friend class _Tuple_impl; + + typedef _Head_base<_Idx, _Head> _Base; + + static constexpr _Head& + _M_head(_Tuple_impl& __t) noexcept { return _Base::_M_head(__t); } + + static constexpr const _Head& + _M_head(const _Tuple_impl& __t) noexcept { return _Base::_M_head(__t); } + + constexpr _Tuple_impl() + : _Base() { } + + explicit + constexpr _Tuple_impl(const _Head& __head) + : _Base(__head) { } + + template + explicit + constexpr _Tuple_impl(_UHead&& __head) + : _Base(std::forward<_UHead>(__head)) { } + + constexpr _Tuple_impl(const _Tuple_impl&) = default; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2729. Missing SFINAE on std::pair::operator= + _Tuple_impl& operator=(const _Tuple_impl&) = delete; + + constexpr + _Tuple_impl(_Tuple_impl&& __in) + noexcept(is_nothrow_move_constructible<_Head>::value) + : _Base(std::forward<_Head>(_M_head(__in))) { } + + template + constexpr _Tuple_impl(const _Tuple_impl<_Idx, _UHead>& __in) + : _Base(_Tuple_impl<_Idx, _UHead>::_M_head(__in)) { } + + template + constexpr _Tuple_impl(_Tuple_impl<_Idx, _UHead>&& __in) + : _Base(std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in))) + { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a) + : _Base(__tag, __use_alloc<_Head>(__a)) { } + + template + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + const _Head& __head) + : _Base(__use_alloc<_Head, _Alloc, _Head>(__a), __head) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + _UHead&& __head) + : _Base(__use_alloc<_Head, _Alloc, _UHead>(__a), + std::forward<_UHead>(__head)) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + const _Tuple_impl& __in) + : _Base(__use_alloc<_Head, _Alloc, _Head>(__a), _M_head(__in)) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + _Tuple_impl&& __in) + : _Base(__use_alloc<_Head, _Alloc, _Head>(__a), + std::forward<_Head>(_M_head(__in))) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + const _Tuple_impl<_Idx, _UHead>& __in) + : _Base(__use_alloc<_Head, _Alloc, const _UHead&>(__a), + _Tuple_impl<_Idx, _UHead>::_M_head(__in)) { } + + template + _GLIBCXX20_CONSTEXPR + _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a, + _Tuple_impl<_Idx, _UHead>&& __in) + : _Base(__use_alloc<_Head, _Alloc, _UHead>(__a), + std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in))) + { } + + template + _GLIBCXX20_CONSTEXPR + void + _M_assign(const _Tuple_impl<_Idx, _UHead>& __in) + { + _M_head(*this) = _Tuple_impl<_Idx, _UHead>::_M_head(__in); + } + + template + _GLIBCXX20_CONSTEXPR + void + _M_assign(_Tuple_impl<_Idx, _UHead>&& __in) + { + _M_head(*this) + = std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in)); + } + + protected: + _GLIBCXX20_CONSTEXPR + void + _M_swap(_Tuple_impl& __in) + { + using std::swap; + swap(_M_head(*this), _M_head(__in)); + } + }; + + // Concept utility functions, reused in conditionally-explicit + // constructors. + template + struct _TupleConstraints + { + // Constraint for a non-explicit constructor. + // True iff each Ti in _Types... can be constructed from Ui in _UTypes... + // and every Ui is implicitly convertible to Ti. + template + static constexpr bool __is_implicitly_constructible() + { + return __and_..., + is_convertible<_UTypes, _Types>... + >::value; + } + + // Constraint for a non-explicit constructor. + // True iff each Ti in _Types... can be constructed from Ui in _UTypes... + // but not every Ui is implicitly convertible to Ti. + template + static constexpr bool __is_explicitly_constructible() + { + return __and_..., + __not_<__and_...>> + >::value; + } + + static constexpr bool __is_implicitly_default_constructible() + { + return __and_... + >::value; + } + + static constexpr bool __is_explicitly_default_constructible() + { + return __and_..., + __not_<__and_< + std::__is_implicitly_default_constructible<_Types>...> + >>::value; + } + }; + + // Partial specialization used when a required precondition isn't met, + // e.g. when sizeof...(_Types) != sizeof...(_UTypes). + template + struct _TupleConstraints + { + template + static constexpr bool __is_implicitly_constructible() + { return false; } + + template + static constexpr bool __is_explicitly_constructible() + { return false; } + }; + + /// Primary class template, tuple + template + class tuple : public _Tuple_impl<0, _Elements...> + { + typedef _Tuple_impl<0, _Elements...> _Inherited; + + template + using _TCC = _TupleConstraints<_Cond, _Elements...>; + + // Constraint for non-explicit default constructor + template + using _ImplicitDefaultCtor = __enable_if_t< + _TCC<_Dummy>::__is_implicitly_default_constructible(), + bool>; + + // Constraint for explicit default constructor + template + using _ExplicitDefaultCtor = __enable_if_t< + _TCC<_Dummy>::__is_explicitly_default_constructible(), + bool>; + + // Constraint for non-explicit constructors + template + using _ImplicitCtor = __enable_if_t< + _TCC<_Cond>::template __is_implicitly_constructible<_Args...>(), + bool>; + + // Constraint for non-explicit constructors + template + using _ExplicitCtor = __enable_if_t< + _TCC<_Cond>::template __is_explicitly_constructible<_Args...>(), + bool>; + + template + static constexpr + __enable_if_t + __assignable() + { return __and_...>::value; } + + // Condition for noexcept-specifier of an assignment operator. + template + static constexpr bool __nothrow_assignable() + { + return + __and_...>::value; + } + + // Condition for noexcept-specifier of a constructor. + template + static constexpr bool __nothrow_constructible() + { + return + __and_...>::value; + } + + // Constraint for tuple(_UTypes&&...) where sizeof...(_UTypes) == 1. + template + static constexpr bool __valid_args() + { + return sizeof...(_Elements) == 1 + && !is_same>::value; + } + + // Constraint for tuple(_UTypes&&...) where sizeof...(_UTypes) > 1. + template + static constexpr bool __valid_args() + { return (sizeof...(_Tail) + 2) == sizeof...(_Elements); } + + /* Constraint for constructors with a tuple parameter ensures + * that the constructor is only viable when it would not interfere with + * tuple(UTypes&&...) or tuple(const tuple&) or tuple(tuple&&). + * Such constructors are only viable if: + * either sizeof...(Types) != 1, + * or (when Types... expands to T and UTypes... expands to U) + * is_convertible_v, is_constructible_v, + * and is_same_v are all false. + */ + template> + struct _UseOtherCtor + : false_type + { }; + // If TUPLE is convertible to the single element in *this, + // then TUPLE should match tuple(UTypes&&...) instead. + template + struct _UseOtherCtor<_Tuple, tuple<_Tp>, tuple<_Up>> + : __or_, is_constructible<_Tp, _Tuple>> + { }; + // If TUPLE and *this each have a single element of the same type, + // then TUPLE should match a copy/move constructor instead. + template + struct _UseOtherCtor<_Tuple, tuple<_Tp>, tuple<_Tp>> + : true_type + { }; + + // Return true iff sizeof...(Types) == 1 && tuple_size_v == 1 + // and the single element in Types can be initialized from TUPLE, + // or is the same type as tuple_element_t<0, TUPLE>. + template + static constexpr bool __use_other_ctor() + { return _UseOtherCtor<_Tuple>::value; } + + public: + template::value> = true> + constexpr + tuple() + noexcept(__and_...>::value) + : _Inherited() { } + + template::value> = false> + explicit constexpr + tuple() + noexcept(__and_...>::value) + : _Inherited() { } + + template= 1), + _ImplicitCtor<_NotEmpty, const _Elements&...> = true> + constexpr + tuple(const _Elements&... __elements) + noexcept(__nothrow_constructible()) + : _Inherited(__elements...) { } + + template= 1), + _ExplicitCtor<_NotEmpty, const _Elements&...> = false> + explicit constexpr + tuple(const _Elements&... __elements) + noexcept(__nothrow_constructible()) + : _Inherited(__elements...) { } + + template(), + _ImplicitCtor<_Valid, _UElements...> = true> + constexpr + tuple(_UElements&&... __elements) + noexcept(__nothrow_constructible<_UElements...>()) + : _Inherited(std::forward<_UElements>(__elements)...) { } + + template(), + _ExplicitCtor<_Valid, _UElements...> = false> + explicit constexpr + tuple(_UElements&&... __elements) + noexcept(__nothrow_constructible<_UElements...>()) + : _Inherited(std::forward<_UElements>(__elements)...) { } + + constexpr tuple(const tuple&) = default; + + constexpr tuple(tuple&&) = default; + + template&>(), + _ImplicitCtor<_Valid, const _UElements&...> = true> + constexpr + tuple(const tuple<_UElements...>& __in) + noexcept(__nothrow_constructible()) + : _Inherited(static_cast&>(__in)) + { } + + template&>(), + _ExplicitCtor<_Valid, const _UElements&...> = false> + explicit constexpr + tuple(const tuple<_UElements...>& __in) + noexcept(__nothrow_constructible()) + : _Inherited(static_cast&>(__in)) + { } + + template&&>(), + _ImplicitCtor<_Valid, _UElements...> = true> + constexpr + tuple(tuple<_UElements...>&& __in) + noexcept(__nothrow_constructible<_UElements...>()) + : _Inherited(static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) { } + + template&&>(), + _ExplicitCtor<_Valid, _UElements...> = false> + explicit constexpr + tuple(tuple<_UElements...>&& __in) + noexcept(__nothrow_constructible<_UElements...>()) + : _Inherited(static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) { } + + // Allocator-extended constructors. + + template::value> = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a) + : _Inherited(__tag, __a) { } + + template= 1), + _ImplicitCtor<_NotEmpty, const _Elements&...> = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const _Elements&... __elements) + : _Inherited(__tag, __a, __elements...) { } + + template= 1), + _ExplicitCtor<_NotEmpty, const _Elements&...> = false> + _GLIBCXX20_CONSTEXPR + explicit + tuple(allocator_arg_t __tag, const _Alloc& __a, + const _Elements&... __elements) + : _Inherited(__tag, __a, __elements...) { } + + template(), + _ImplicitCtor<_Valid, _UElements...> = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + _UElements&&... __elements) + : _Inherited(__tag, __a, std::forward<_UElements>(__elements)...) + { } + + template(), + _ExplicitCtor<_Valid, _UElements...> = false> + _GLIBCXX20_CONSTEXPR + explicit + tuple(allocator_arg_t __tag, const _Alloc& __a, + _UElements&&... __elements) + : _Inherited(__tag, __a, std::forward<_UElements>(__elements)...) + { } + + template + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, const tuple& __in) + : _Inherited(__tag, __a, static_cast(__in)) { } + + template + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, tuple&& __in) + : _Inherited(__tag, __a, static_cast<_Inherited&&>(__in)) { } + + template&>(), + _ImplicitCtor<_Valid, const _UElements&...> = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const tuple<_UElements...>& __in) + : _Inherited(__tag, __a, + static_cast&>(__in)) + { } + + template&>(), + _ExplicitCtor<_Valid, const _UElements&...> = false> + _GLIBCXX20_CONSTEXPR + explicit + tuple(allocator_arg_t __tag, const _Alloc& __a, + const tuple<_UElements...>& __in) + : _Inherited(__tag, __a, + static_cast&>(__in)) + { } + + template&&>(), + _ImplicitCtor<_Valid, _UElements...> = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + tuple<_UElements...>&& __in) + : _Inherited(__tag, __a, + static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) + { } + + template&&>(), + _ExplicitCtor<_Valid, _UElements...> = false> + _GLIBCXX20_CONSTEXPR + explicit + tuple(allocator_arg_t __tag, const _Alloc& __a, + tuple<_UElements...>&& __in) + : _Inherited(__tag, __a, + static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) + { } + + // tuple assignment + + _GLIBCXX20_CONSTEXPR + tuple& + operator=(typename conditional<__assignable(), + const tuple&, + const __nonesuch&>::type __in) + noexcept(__nothrow_assignable()) + { + this->_M_assign(__in); + return *this; + } + + _GLIBCXX20_CONSTEXPR + tuple& + operator=(typename conditional<__assignable<_Elements...>(), + tuple&&, + __nonesuch&&>::type __in) + noexcept(__nothrow_assignable<_Elements...>()) + { + this->_M_assign(std::move(__in)); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + __enable_if_t<__assignable(), tuple&> + operator=(const tuple<_UElements...>& __in) + noexcept(__nothrow_assignable()) + { + this->_M_assign(__in); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + __enable_if_t<__assignable<_UElements...>(), tuple&> + operator=(tuple<_UElements...>&& __in) + noexcept(__nothrow_assignable<_UElements...>()) + { + this->_M_assign(std::move(__in)); + return *this; + } + + // tuple swap + _GLIBCXX20_CONSTEXPR + void + swap(tuple& __in) + noexcept(__and_<__is_nothrow_swappable<_Elements>...>::value) + { _Inherited::_M_swap(__in); } + }; + +#if __cpp_deduction_guides >= 201606 + template + tuple(_UTypes...) -> tuple<_UTypes...>; + template + tuple(pair<_T1, _T2>) -> tuple<_T1, _T2>; + template + tuple(allocator_arg_t, _Alloc, _UTypes...) -> tuple<_UTypes...>; + template + tuple(allocator_arg_t, _Alloc, pair<_T1, _T2>) -> tuple<_T1, _T2>; + template + tuple(allocator_arg_t, _Alloc, tuple<_UTypes...>) -> tuple<_UTypes...>; +#endif + + // Explicit specialization, zero-element tuple. + template<> + class tuple<> + { + public: + void swap(tuple&) noexcept { /* no-op */ } + // We need the default since we're going to define no-op + // allocator constructors. + tuple() = default; + // No-op allocator constructors. + template + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t, const _Alloc&) noexcept { } + template + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t, const _Alloc&, const tuple&) noexcept { } + }; + + /// Partial specialization, 2-element tuple. + /// Includes construction and assignment from a pair. + template + class tuple<_T1, _T2> : public _Tuple_impl<0, _T1, _T2> + { + typedef _Tuple_impl<0, _T1, _T2> _Inherited; + + // Constraint for non-explicit default constructor + template + using _ImplicitDefaultCtor = __enable_if_t< + _TupleConstraints<_Dummy, _U1, _U2>:: + __is_implicitly_default_constructible(), + bool>; + + // Constraint for explicit default constructor + template + using _ExplicitDefaultCtor = __enable_if_t< + _TupleConstraints<_Dummy, _U1, _U2>:: + __is_explicitly_default_constructible(), + bool>; + + template + using _TCC = _TupleConstraints<_Dummy, _T1, _T2>; + + // Constraint for non-explicit constructors + template + using _ImplicitCtor = __enable_if_t< + _TCC<_Cond>::template __is_implicitly_constructible<_U1, _U2>(), + bool>; + + // Constraint for non-explicit constructors + template + using _ExplicitCtor = __enable_if_t< + _TCC<_Cond>::template __is_explicitly_constructible<_U1, _U2>(), + bool>; + + template + static constexpr bool __assignable() + { + return __and_, + is_assignable<_T2&, _U2>>::value; + } + + template + static constexpr bool __nothrow_assignable() + { + return __and_, + is_nothrow_assignable<_T2&, _U2>>::value; + } + + template + static constexpr bool __nothrow_constructible() + { + return __and_, + is_nothrow_constructible<_T2, _U2>>::value; + } + + static constexpr bool __nothrow_default_constructible() + { + return __and_, + is_nothrow_default_constructible<_T2>>::value; + } + + template + static constexpr bool __is_alloc_arg() + { return is_same<__remove_cvref_t<_U1>, allocator_arg_t>::value; } + + public: + template = true> + constexpr + tuple() + noexcept(__nothrow_default_constructible()) + : _Inherited() { } + + template = false> + explicit constexpr + tuple() + noexcept(__nothrow_default_constructible()) + : _Inherited() { } + + template = true> + constexpr + tuple(const _T1& __a1, const _T2& __a2) + noexcept(__nothrow_constructible()) + : _Inherited(__a1, __a2) { } + + template = false> + explicit constexpr + tuple(const _T1& __a1, const _T2& __a2) + noexcept(__nothrow_constructible()) + : _Inherited(__a1, __a2) { } + + template(), _U1, _U2> = true> + constexpr + tuple(_U1&& __a1, _U2&& __a2) + noexcept(__nothrow_constructible<_U1, _U2>()) + : _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { } + + template(), _U1, _U2> = false> + explicit constexpr + tuple(_U1&& __a1, _U2&& __a2) + noexcept(__nothrow_constructible<_U1, _U2>()) + : _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { } + + constexpr tuple(const tuple&) = default; + + constexpr tuple(tuple&&) = default; + + template = true> + constexpr + tuple(const tuple<_U1, _U2>& __in) + noexcept(__nothrow_constructible()) + : _Inherited(static_cast&>(__in)) { } + + template = false> + explicit constexpr + tuple(const tuple<_U1, _U2>& __in) + noexcept(__nothrow_constructible()) + : _Inherited(static_cast&>(__in)) { } + + template = true> + constexpr + tuple(tuple<_U1, _U2>&& __in) + noexcept(__nothrow_constructible<_U1, _U2>()) + : _Inherited(static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) { } + + template = false> + explicit constexpr + tuple(tuple<_U1, _U2>&& __in) + noexcept(__nothrow_constructible<_U1, _U2>()) + : _Inherited(static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) { } + + template = true> + constexpr + tuple(const pair<_U1, _U2>& __in) + noexcept(__nothrow_constructible()) + : _Inherited(__in.first, __in.second) { } + + template = false> + explicit constexpr + tuple(const pair<_U1, _U2>& __in) + noexcept(__nothrow_constructible()) + : _Inherited(__in.first, __in.second) { } + + template = true> + constexpr + tuple(pair<_U1, _U2>&& __in) + noexcept(__nothrow_constructible<_U1, _U2>()) + : _Inherited(std::forward<_U1>(__in.first), + std::forward<_U2>(__in.second)) { } + + template = false> + explicit constexpr + tuple(pair<_U1, _U2>&& __in) + noexcept(__nothrow_constructible<_U1, _U2>()) + : _Inherited(std::forward<_U1>(__in.first), + std::forward<_U2>(__in.second)) { } + + // Allocator-extended constructors. + + template::value, _T1, _T2> = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a) + : _Inherited(__tag, __a) { } + + template = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const _T1& __a1, const _T2& __a2) + : _Inherited(__tag, __a, __a1, __a2) { } + + template = false> + explicit + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const _T1& __a1, const _T2& __a2) + : _Inherited(__tag, __a, __a1, __a2) { } + + template = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, _U1&& __a1, _U2&& __a2) + : _Inherited(__tag, __a, std::forward<_U1>(__a1), + std::forward<_U2>(__a2)) { } + + template = false> + explicit + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + _U1&& __a1, _U2&& __a2) + : _Inherited(__tag, __a, std::forward<_U1>(__a1), + std::forward<_U2>(__a2)) { } + + template + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, const tuple& __in) + : _Inherited(__tag, __a, static_cast(__in)) { } + + template + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, tuple&& __in) + : _Inherited(__tag, __a, static_cast<_Inherited&&>(__in)) { } + + template = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const tuple<_U1, _U2>& __in) + : _Inherited(__tag, __a, + static_cast&>(__in)) + { } + + template = false> + explicit + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const tuple<_U1, _U2>& __in) + : _Inherited(__tag, __a, + static_cast&>(__in)) + { } + + template = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, tuple<_U1, _U2>&& __in) + : _Inherited(__tag, __a, static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) + { } + + template = false> + explicit + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, tuple<_U1, _U2>&& __in) + : _Inherited(__tag, __a, static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) + { } + + template = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const pair<_U1, _U2>& __in) + : _Inherited(__tag, __a, __in.first, __in.second) { } + + template = false> + explicit + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, + const pair<_U1, _U2>& __in) + : _Inherited(__tag, __a, __in.first, __in.second) { } + + template = true> + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, pair<_U1, _U2>&& __in) + : _Inherited(__tag, __a, std::forward<_U1>(__in.first), + std::forward<_U2>(__in.second)) { } + + template = false> + explicit + _GLIBCXX20_CONSTEXPR + tuple(allocator_arg_t __tag, const _Alloc& __a, pair<_U1, _U2>&& __in) + : _Inherited(__tag, __a, std::forward<_U1>(__in.first), + std::forward<_U2>(__in.second)) { } + + // Tuple assignment. + + _GLIBCXX20_CONSTEXPR + tuple& + operator=(typename conditional<__assignable(), + const tuple&, + const __nonesuch&>::type __in) + noexcept(__nothrow_assignable()) + { + this->_M_assign(__in); + return *this; + } + + _GLIBCXX20_CONSTEXPR + tuple& + operator=(typename conditional<__assignable<_T1, _T2>(), + tuple&&, + __nonesuch&&>::type __in) + noexcept(__nothrow_assignable<_T1, _T2>()) + { + this->_M_assign(std::move(__in)); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + __enable_if_t<__assignable(), tuple&> + operator=(const tuple<_U1, _U2>& __in) + noexcept(__nothrow_assignable()) + { + this->_M_assign(__in); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + __enable_if_t<__assignable<_U1, _U2>(), tuple&> + operator=(tuple<_U1, _U2>&& __in) + noexcept(__nothrow_assignable<_U1, _U2>()) + { + this->_M_assign(std::move(__in)); + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + __enable_if_t<__assignable(), tuple&> + operator=(const pair<_U1, _U2>& __in) + noexcept(__nothrow_assignable()) + { + this->_M_head(*this) = __in.first; + this->_M_tail(*this)._M_head(*this) = __in.second; + return *this; + } + + template + _GLIBCXX20_CONSTEXPR + __enable_if_t<__assignable<_U1, _U2>(), tuple&> + operator=(pair<_U1, _U2>&& __in) + noexcept(__nothrow_assignable<_U1, _U2>()) + { + this->_M_head(*this) = std::forward<_U1>(__in.first); + this->_M_tail(*this)._M_head(*this) = std::forward<_U2>(__in.second); + return *this; + } + + _GLIBCXX20_CONSTEXPR + void + swap(tuple& __in) + noexcept(__and_<__is_nothrow_swappable<_T1>, + __is_nothrow_swappable<_T2>>::value) + { _Inherited::_M_swap(__in); } + }; + + + /// class tuple_size + template + struct tuple_size> + : public integral_constant { }; + +#if __cplusplus > 201402L + template + inline constexpr size_t tuple_size_v = tuple_size<_Tp>::value; +#endif + + /** + * Recursive case for tuple_element: strip off the first element in + * the tuple and retrieve the (i-1)th element of the remaining tuple. + */ + template + struct tuple_element<__i, tuple<_Head, _Tail...> > + : tuple_element<__i - 1, tuple<_Tail...> > { }; + + /** + * Basis case for tuple_element: The first element is the one we're seeking. + */ + template + struct tuple_element<0, tuple<_Head, _Tail...> > + { + typedef _Head type; + }; + + /** + * Error case for tuple_element: invalid index. + */ + template + struct tuple_element<__i, tuple<>> + { + static_assert(__i < tuple_size>::value, + "tuple index is in range"); + }; + + template + constexpr _Head& + __get_helper(_Tuple_impl<__i, _Head, _Tail...>& __t) noexcept + { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); } + + template + constexpr const _Head& + __get_helper(const _Tuple_impl<__i, _Head, _Tail...>& __t) noexcept + { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); } + + /// Return a reference to the ith element of a tuple. + template + constexpr __tuple_element_t<__i, tuple<_Elements...>>& + get(tuple<_Elements...>& __t) noexcept + { return std::__get_helper<__i>(__t); } + + /// Return a const reference to the ith element of a const tuple. + template + constexpr const __tuple_element_t<__i, tuple<_Elements...>>& + get(const tuple<_Elements...>& __t) noexcept + { return std::__get_helper<__i>(__t); } + + /// Return an rvalue reference to the ith element of a tuple rvalue. + template + constexpr __tuple_element_t<__i, tuple<_Elements...>>&& + get(tuple<_Elements...>&& __t) noexcept + { + typedef __tuple_element_t<__i, tuple<_Elements...>> __element_type; + return std::forward<__element_type&&>(std::get<__i>(__t)); + } + + /// Return a const rvalue reference to the ith element of a const tuple rvalue. + template + constexpr const __tuple_element_t<__i, tuple<_Elements...>>&& + get(const tuple<_Elements...>&& __t) noexcept + { + typedef __tuple_element_t<__i, tuple<_Elements...>> __element_type; + return std::forward(std::get<__i>(__t)); + } + +#if __cplusplus >= 201402L + +#define __cpp_lib_tuples_by_type 201304 + + template + constexpr _Head& + __get_helper2(_Tuple_impl<__i, _Head, _Tail...>& __t) noexcept + { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); } + + template + constexpr const _Head& + __get_helper2(const _Tuple_impl<__i, _Head, _Tail...>& __t) noexcept + { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); } + + /// Return a reference to the unique element of type _Tp of a tuple. + template + constexpr _Tp& + get(tuple<_Types...>& __t) noexcept + { return std::__get_helper2<_Tp>(__t); } + + /// Return a reference to the unique element of type _Tp of a tuple rvalue. + template + constexpr _Tp&& + get(tuple<_Types...>&& __t) noexcept + { return std::forward<_Tp&&>(std::__get_helper2<_Tp>(__t)); } + + /// Return a const reference to the unique element of type _Tp of a tuple. + template + constexpr const _Tp& + get(const tuple<_Types...>& __t) noexcept + { return std::__get_helper2<_Tp>(__t); } + + /// Return a const reference to the unique element of type _Tp of + /// a const tuple rvalue. + template + constexpr const _Tp&& + get(const tuple<_Types...>&& __t) noexcept + { return std::forward(std::__get_helper2<_Tp>(__t)); } +#endif + + // This class performs the comparison operations on tuples + template + struct __tuple_compare + { + static constexpr bool + __eq(const _Tp& __t, const _Up& __u) + { + return bool(std::get<__i>(__t) == std::get<__i>(__u)) + && __tuple_compare<_Tp, _Up, __i + 1, __size>::__eq(__t, __u); + } + + static constexpr bool + __less(const _Tp& __t, const _Up& __u) + { + return bool(std::get<__i>(__t) < std::get<__i>(__u)) + || (!bool(std::get<__i>(__u) < std::get<__i>(__t)) + && __tuple_compare<_Tp, _Up, __i + 1, __size>::__less(__t, __u)); + } + }; + + template + struct __tuple_compare<_Tp, _Up, __size, __size> + { + static constexpr bool + __eq(const _Tp&, const _Up&) { return true; } + + static constexpr bool + __less(const _Tp&, const _Up&) { return false; } + }; + + template + constexpr bool + operator==(const tuple<_TElements...>& __t, + const tuple<_UElements...>& __u) + { + static_assert(sizeof...(_TElements) == sizeof...(_UElements), + "tuple objects can only be compared if they have equal sizes."); + using __compare = __tuple_compare, + tuple<_UElements...>, + 0, sizeof...(_TElements)>; + return __compare::__eq(__t, __u); + } + +#if __cpp_lib_three_way_comparison + template + constexpr _Cat + __tuple_cmp(const _Tp&, const _Up&, index_sequence<>) + { return _Cat::equivalent; } + + template + constexpr _Cat + __tuple_cmp(const _Tp& __t, const _Up& __u, + index_sequence<_Idx0, _Idxs...>) + { + auto __c + = __detail::__synth3way(std::get<_Idx0>(__t), std::get<_Idx0>(__u)); + if (__c != 0) + return __c; + return std::__tuple_cmp<_Cat>(__t, __u, index_sequence<_Idxs...>()); + } + + template + constexpr + common_comparison_category_t<__detail::__synth3way_t<_Tps, _Ups>...> + operator<=>(const tuple<_Tps...>& __t, const tuple<_Ups...>& __u) + { + using _Cat + = common_comparison_category_t<__detail::__synth3way_t<_Tps, _Ups>...>; + return std::__tuple_cmp<_Cat>(__t, __u, index_sequence_for<_Tps...>()); + } +#else + template + constexpr bool + operator<(const tuple<_TElements...>& __t, + const tuple<_UElements...>& __u) + { + static_assert(sizeof...(_TElements) == sizeof...(_UElements), + "tuple objects can only be compared if they have equal sizes."); + using __compare = __tuple_compare, + tuple<_UElements...>, + 0, sizeof...(_TElements)>; + return __compare::__less(__t, __u); + } + + template + constexpr bool + operator!=(const tuple<_TElements...>& __t, + const tuple<_UElements...>& __u) + { return !(__t == __u); } + + template + constexpr bool + operator>(const tuple<_TElements...>& __t, + const tuple<_UElements...>& __u) + { return __u < __t; } + + template + constexpr bool + operator<=(const tuple<_TElements...>& __t, + const tuple<_UElements...>& __u) + { return !(__u < __t); } + + template + constexpr bool + operator>=(const tuple<_TElements...>& __t, + const tuple<_UElements...>& __u) + { return !(__t < __u); } +#endif // three_way_comparison + + // NB: DR 705. + template + constexpr tuple::__type...> + make_tuple(_Elements&&... __args) + { + typedef tuple::__type...> + __result_type; + return __result_type(std::forward<_Elements>(__args)...); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2275. Why is forward_as_tuple not constexpr? + /// std::forward_as_tuple + template + constexpr tuple<_Elements&&...> + forward_as_tuple(_Elements&&... __args) noexcept + { return tuple<_Elements&&...>(std::forward<_Elements>(__args)...); } + + template + struct __make_tuple_impl; + + template + struct __make_tuple_impl<_Idx, tuple<_Tp...>, _Tuple, _Nm> + : __make_tuple_impl<_Idx + 1, + tuple<_Tp..., __tuple_element_t<_Idx, _Tuple>>, + _Tuple, _Nm> + { }; + + template + struct __make_tuple_impl<_Nm, tuple<_Tp...>, _Tuple, _Nm> + { + typedef tuple<_Tp...> __type; + }; + + template + struct __do_make_tuple + : __make_tuple_impl<0, tuple<>, _Tuple, std::tuple_size<_Tuple>::value> + { }; + + // Returns the std::tuple equivalent of a tuple-like type. + template + struct __make_tuple + : public __do_make_tuple<__remove_cvref_t<_Tuple>> + { }; + + // Combines several std::tuple's into a single one. + template + struct __combine_tuples; + + template<> + struct __combine_tuples<> + { + typedef tuple<> __type; + }; + + template + struct __combine_tuples> + { + typedef tuple<_Ts...> __type; + }; + + template + struct __combine_tuples, tuple<_T2s...>, _Rem...> + { + typedef typename __combine_tuples, + _Rem...>::__type __type; + }; + + // Computes the result type of tuple_cat given a set of tuple-like types. + template + struct __tuple_cat_result + { + typedef typename __combine_tuples + ::__type...>::__type __type; + }; + + // Helper to determine the index set for the first tuple-like + // type of a given set. + template + struct __make_1st_indices; + + template<> + struct __make_1st_indices<> + { + typedef std::_Index_tuple<> __type; + }; + + template + struct __make_1st_indices<_Tp, _Tpls...> + { + typedef typename std::_Build_index_tuple::type>::value>::__type __type; + }; + + // Performs the actual concatenation by step-wise expanding tuple-like + // objects into the elements, which are finally forwarded into the + // result tuple. + template + struct __tuple_concater; + + template + struct __tuple_concater<_Ret, std::_Index_tuple<_Is...>, _Tp, _Tpls...> + { + template + static constexpr _Ret + _S_do(_Tp&& __tp, _Tpls&&... __tps, _Us&&... __us) + { + typedef typename __make_1st_indices<_Tpls...>::__type __idx; + typedef __tuple_concater<_Ret, __idx, _Tpls...> __next; + return __next::_S_do(std::forward<_Tpls>(__tps)..., + std::forward<_Us>(__us)..., + std::get<_Is>(std::forward<_Tp>(__tp))...); + } + }; + + template + struct __tuple_concater<_Ret, std::_Index_tuple<>> + { + template + static constexpr _Ret + _S_do(_Us&&... __us) + { + return _Ret(std::forward<_Us>(__us)...); + } + }; + + /// tuple_cat + template...>::value>::type> + constexpr auto + tuple_cat(_Tpls&&... __tpls) + -> typename __tuple_cat_result<_Tpls...>::__type + { + typedef typename __tuple_cat_result<_Tpls...>::__type __ret; + typedef typename __make_1st_indices<_Tpls...>::__type __idx; + typedef __tuple_concater<__ret, __idx, _Tpls...> __concater; + return __concater::_S_do(std::forward<_Tpls>(__tpls)...); + } + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2301. Why is tie not constexpr? + /// tie + template + constexpr tuple<_Elements&...> + tie(_Elements&... __args) noexcept + { return tuple<_Elements&...>(__args...); } + + /// swap + template + _GLIBCXX20_CONSTEXPR + inline +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + // Constrained free swap overload, see p0185r1 + typename enable_if<__and_<__is_swappable<_Elements>...>::value + >::type +#else + void +#endif + swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y) + noexcept(noexcept(__x.swap(__y))) + { __x.swap(__y); } + +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 + template + _GLIBCXX20_CONSTEXPR + typename enable_if...>::value>::type + swap(tuple<_Elements...>&, tuple<_Elements...>&) = delete; +#endif + + // A class (and instance) which can be used in 'tie' when an element + // of a tuple is not required. + // _GLIBCXX14_CONSTEXPR + // 2933. PR for LWG 2773 could be clearer + struct _Swallow_assign + { + template + _GLIBCXX14_CONSTEXPR const _Swallow_assign& + operator=(const _Tp&) const + { return *this; } + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2773. Making std::ignore constexpr + _GLIBCXX17_INLINE constexpr _Swallow_assign ignore{}; + + /// Partial specialization for tuples + template + struct uses_allocator, _Alloc> : true_type { }; + + // See stl_pair.h... + /** "piecewise construction" using a tuple of arguments for each member. + * + * @param __first Arguments for the first member of the pair. + * @param __second Arguments for the second member of the pair. + * + * The elements of each tuple will be used as the constructor arguments + * for the data members of the pair. + */ + template + template + _GLIBCXX20_CONSTEXPR + inline + pair<_T1, _T2>:: + pair(piecewise_construct_t, + tuple<_Args1...> __first, tuple<_Args2...> __second) + : pair(__first, __second, + typename _Build_index_tuple::__type(), + typename _Build_index_tuple::__type()) + { } + + template + template + _GLIBCXX20_CONSTEXPR inline + pair<_T1, _T2>:: + pair(tuple<_Args1...>& __tuple1, tuple<_Args2...>& __tuple2, + _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>) + : first(std::forward<_Args1>(std::get<_Indexes1>(__tuple1))...), + second(std::forward<_Args2>(std::get<_Indexes2>(__tuple2))...) + { } + +#if __cplusplus >= 201703L + + // Unpack a std::tuple into a type trait and use its value. + // For cv std::tuple<_Up> the result is _Trait<_Tp, cv _Up...>::value. + // For cv std::tuple<_Up>& the result is _Trait<_Tp, cv _Up&...>::value. + // Otherwise the result is false (because we don't know if std::get throws). + template class _Trait, typename _Tp, typename _Tuple> + inline constexpr bool __unpack_std_tuple = false; + + template class _Trait, typename _Tp, typename... _Up> + inline constexpr bool __unpack_std_tuple<_Trait, _Tp, tuple<_Up...>> + = _Trait<_Tp, _Up...>::value; + + template class _Trait, typename _Tp, typename... _Up> + inline constexpr bool __unpack_std_tuple<_Trait, _Tp, tuple<_Up...>&> + = _Trait<_Tp, _Up&...>::value; + + template class _Trait, typename _Tp, typename... _Up> + inline constexpr bool __unpack_std_tuple<_Trait, _Tp, const tuple<_Up...>> + = _Trait<_Tp, const _Up...>::value; + + template class _Trait, typename _Tp, typename... _Up> + inline constexpr bool __unpack_std_tuple<_Trait, _Tp, const tuple<_Up...>&> + = _Trait<_Tp, const _Up&...>::value; + +# define __cpp_lib_apply 201603 + + template + constexpr decltype(auto) + __apply_impl(_Fn&& __f, _Tuple&& __t, index_sequence<_Idx...>) + { + return std::__invoke(std::forward<_Fn>(__f), + std::get<_Idx>(std::forward<_Tuple>(__t))...); + } + + template + constexpr decltype(auto) + apply(_Fn&& __f, _Tuple&& __t) + noexcept(__unpack_std_tuple) + { + using _Indices + = make_index_sequence>>; + return std::__apply_impl(std::forward<_Fn>(__f), + std::forward<_Tuple>(__t), + _Indices{}); + } + +#define __cpp_lib_make_from_tuple 201606 + + template + constexpr _Tp + __make_from_tuple_impl(_Tuple&& __t, index_sequence<_Idx...>) + { return _Tp(std::get<_Idx>(std::forward<_Tuple>(__t))...); } + + template + constexpr _Tp + make_from_tuple(_Tuple&& __t) + noexcept(__unpack_std_tuple) + { + return __make_from_tuple_impl<_Tp>( + std::forward<_Tuple>(__t), + make_index_sequence>>{}); + } +#endif // C++17 + + /// @} + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#endif // _GLIBCXX_TUPLE diff --git a/resources/sources/avr-libstdcpp/include/type_traits b/resources/sources/avr-libstdcpp/include/type_traits new file mode 100644 index 000000000..37ef4238d --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/type_traits @@ -0,0 +1,3774 @@ +// C++11 -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/type_traits + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_TYPE_TRAITS +#define _GLIBCXX_TYPE_TRAITS 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup metaprogramming Metaprogramming + * @ingroup utilities + * + * Template utilities for compile-time introspection and modification, + * including type classification traits, type property inspection traits + * and type transformation traits. + * + * @{ + */ + + /// integral_constant + template + struct integral_constant + { + static constexpr _Tp value = __v; + typedef _Tp value_type; + typedef integral_constant<_Tp, __v> type; + constexpr operator value_type() const noexcept { return value; } +#if __cplusplus > 201103L + +#define __cpp_lib_integral_constant_callable 201304 + + constexpr value_type operator()() const noexcept { return value; } +#endif + }; + + template + constexpr _Tp integral_constant<_Tp, __v>::value; + + /// The type used as a compile-time boolean with true value. + typedef integral_constant true_type; + + /// The type used as a compile-time boolean with false value. + typedef integral_constant false_type; + + template + using __bool_constant = integral_constant; + +#if __cplusplus > 201402L +# define __cpp_lib_bool_constant 201505 + template + using bool_constant = integral_constant; +#endif + + // Meta programming helper types. + + template + struct conditional; + + template + struct __type_identity + { using type = _Type; }; + + template + using __type_identity_t = typename __type_identity<_Tp>::type; + + template + struct __or_; + + template<> + struct __or_<> + : public false_type + { }; + + template + struct __or_<_B1> + : public _B1 + { }; + + template + struct __or_<_B1, _B2> + : public conditional<_B1::value, _B1, _B2>::type + { }; + + template + struct __or_<_B1, _B2, _B3, _Bn...> + : public conditional<_B1::value, _B1, __or_<_B2, _B3, _Bn...>>::type + { }; + + template + struct __and_; + + template<> + struct __and_<> + : public true_type + { }; + + template + struct __and_<_B1> + : public _B1 + { }; + + template + struct __and_<_B1, _B2> + : public conditional<_B1::value, _B2, _B1>::type + { }; + + template + struct __and_<_B1, _B2, _B3, _Bn...> + : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type + { }; + + template + struct __not_ + : public __bool_constant + { }; + +#if __cplusplus >= 201703L + + template + inline constexpr bool __or_v = __or_<_Bn...>::value; + template + inline constexpr bool __and_v = __and_<_Bn...>::value; + +#define __cpp_lib_logical_traits 201510 + + template + struct conjunction + : __and_<_Bn...> + { }; + + template + struct disjunction + : __or_<_Bn...> + { }; + + template + struct negation + : __not_<_Pp> + { }; + + template + inline constexpr bool conjunction_v = conjunction<_Bn...>::value; + + template + inline constexpr bool disjunction_v = disjunction<_Bn...>::value; + + template + inline constexpr bool negation_v = negation<_Pp>::value; + +#endif // C++17 + + // Forward declarations + template + struct is_reference; + template + struct is_function; + template + struct is_void; + template + struct __is_array_unknown_bounds; + + // Helper functions that return false_type for incomplete classes, + // incomplete unions and arrays of known bound from those. + + template + constexpr true_type __is_complete_or_unbounded(__type_identity<_Tp>) + { return {}; } + + template + constexpr typename __or_< + is_reference<_NestedType>, + is_function<_NestedType>, + is_void<_NestedType>, + __is_array_unknown_bounds<_NestedType> + >::type __is_complete_or_unbounded(_TypeIdentity) + { return {}; } + + // For several sfinae-friendly trait implementations we transport both the + // result information (as the member type) and the failure information (no + // member type). This is very similar to std::enable_if, but we cannot use + // them, because we need to derive from them as an implementation detail. + + template + struct __success_type + { typedef _Tp type; }; + + struct __failure_type + { }; + + template + struct remove_cv; + + // __remove_cv_t (std::remove_cv_t for C++11). + template + using __remove_cv_t = typename remove_cv<_Tp>::type; + + template + struct is_const; + + // Primary type categories. + + template + struct __is_void_helper + : public false_type { }; + + template<> + struct __is_void_helper + : public true_type { }; + + /// is_void + template + struct is_void + : public __is_void_helper<__remove_cv_t<_Tp>>::type + { }; + + template + struct __is_integral_helper + : public false_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + +#ifdef _GLIBCXX_USE_WCHAR_T + template<> + struct __is_integral_helper + : public true_type { }; +#endif + +#ifdef _GLIBCXX_USE_CHAR8_T + template<> + struct __is_integral_helper + : public true_type { }; +#endif + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; + + // Conditionalizing on __STRICT_ANSI__ here will break any port that + // uses one of these types for size_t. +#if defined(__GLIBCXX_TYPE_INT_N_0) + template<> + struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_0> + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + template<> + struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_1> + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + template<> + struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_2> + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + template<> + struct __is_integral_helper<__GLIBCXX_TYPE_INT_N_3> + : public true_type { }; + + template<> + struct __is_integral_helper + : public true_type { }; +#endif + + /// is_integral + template + struct is_integral + : public __is_integral_helper<__remove_cv_t<_Tp>>::type + { }; + + template + struct __is_floating_point_helper + : public false_type { }; + + template<> + struct __is_floating_point_helper + : public true_type { }; + + template<> + struct __is_floating_point_helper + : public true_type { }; + + template<> + struct __is_floating_point_helper + : public true_type { }; + +#if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) + template<> + struct __is_floating_point_helper<__float128> + : public true_type { }; +#endif + + /// is_floating_point + template + struct is_floating_point + : public __is_floating_point_helper<__remove_cv_t<_Tp>>::type + { }; + + /// is_array + template + struct is_array + : public false_type { }; + + template + struct is_array<_Tp[_Size]> + : public true_type { }; + + template + struct is_array<_Tp[]> + : public true_type { }; + + template + struct __is_pointer_helper + : public false_type { }; + + template + struct __is_pointer_helper<_Tp*> + : public true_type { }; + + /// is_pointer + template + struct is_pointer + : public __is_pointer_helper<__remove_cv_t<_Tp>>::type + { }; + + /// is_lvalue_reference + template + struct is_lvalue_reference + : public false_type { }; + + template + struct is_lvalue_reference<_Tp&> + : public true_type { }; + + /// is_rvalue_reference + template + struct is_rvalue_reference + : public false_type { }; + + template + struct is_rvalue_reference<_Tp&&> + : public true_type { }; + + template + struct __is_member_object_pointer_helper + : public false_type { }; + + template + struct __is_member_object_pointer_helper<_Tp _Cp::*> + : public __not_>::type { }; + + /// is_member_object_pointer + template + struct is_member_object_pointer + : public __is_member_object_pointer_helper<__remove_cv_t<_Tp>>::type + { }; + + template + struct __is_member_function_pointer_helper + : public false_type { }; + + template + struct __is_member_function_pointer_helper<_Tp _Cp::*> + : public is_function<_Tp>::type { }; + + /// is_member_function_pointer + template + struct is_member_function_pointer + : public __is_member_function_pointer_helper<__remove_cv_t<_Tp>>::type + { }; + + /// is_enum + template + struct is_enum + : public integral_constant + { }; + + /// is_union + template + struct is_union + : public integral_constant + { }; + + /// is_class + template + struct is_class + : public integral_constant + { }; + + /// is_function + template + struct is_function + : public __bool_constant::value> { }; + + template + struct is_function<_Tp&> + : public false_type { }; + + template + struct is_function<_Tp&&> + : public false_type { }; + +#define __cpp_lib_is_null_pointer 201309 + + template + struct __is_null_pointer_helper + : public false_type { }; + + template<> + struct __is_null_pointer_helper + : public true_type { }; + + /// is_null_pointer (LWG 2247). + template + struct is_null_pointer + : public __is_null_pointer_helper<__remove_cv_t<_Tp>>::type + { }; + + /// __is_nullptr_t (deprecated extension). + template + struct __is_nullptr_t + : public is_null_pointer<_Tp> + { } _GLIBCXX_DEPRECATED_SUGGEST("std::is_null_pointer"); + + // Composite type categories. + + /// is_reference + template + struct is_reference + : public __or_, + is_rvalue_reference<_Tp>>::type + { }; + + /// is_arithmetic + template + struct is_arithmetic + : public __or_, is_floating_point<_Tp>>::type + { }; + + /// is_fundamental + template + struct is_fundamental + : public __or_, is_void<_Tp>, + is_null_pointer<_Tp>>::type + { }; + + /// is_object + template + struct is_object + : public __not_<__or_, is_reference<_Tp>, + is_void<_Tp>>>::type + { }; + + template + struct is_member_pointer; + + /// is_scalar + template + struct is_scalar + : public __or_, is_enum<_Tp>, is_pointer<_Tp>, + is_member_pointer<_Tp>, is_null_pointer<_Tp>>::type + { }; + + /// is_compound + template + struct is_compound + : public __not_>::type { }; + + template + struct __is_member_pointer_helper + : public false_type { }; + + template + struct __is_member_pointer_helper<_Tp _Cp::*> + : public true_type { }; + + /// is_member_pointer + template + struct is_member_pointer + : public __is_member_pointer_helper<__remove_cv_t<_Tp>>::type + { }; + + template + struct is_same; + + template + using __is_one_of = __or_...>; + + // Check if a type is one of the signed integer types. + template + using __is_signed_integer = __is_one_of<__remove_cv_t<_Tp>, + signed char, signed short, signed int, signed long, + signed long long +#if defined(__GLIBCXX_TYPE_INT_N_0) + , signed __GLIBCXX_TYPE_INT_N_0 +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + , signed __GLIBCXX_TYPE_INT_N_1 +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + , signed __GLIBCXX_TYPE_INT_N_2 +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + , signed __GLIBCXX_TYPE_INT_N_3 +#endif + >; + + // Check if a type is one of the unsigned integer types. + template + using __is_unsigned_integer = __is_one_of<__remove_cv_t<_Tp>, + unsigned char, unsigned short, unsigned int, unsigned long, + unsigned long long +#if defined(__GLIBCXX_TYPE_INT_N_0) + , unsigned __GLIBCXX_TYPE_INT_N_0 +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + , unsigned __GLIBCXX_TYPE_INT_N_1 +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + , unsigned __GLIBCXX_TYPE_INT_N_2 +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + , unsigned __GLIBCXX_TYPE_INT_N_3 +#endif + >; + + // Check if a type is one of the signed or unsigned integer types. + template + using __is_standard_integer + = __or_<__is_signed_integer<_Tp>, __is_unsigned_integer<_Tp>>; + + // __void_t (std::void_t for C++11) + template using __void_t = void; + + // Utility to detect referenceable types ([defns.referenceable]). + + template + struct __is_referenceable + : public false_type + { }; + + template + struct __is_referenceable<_Tp, __void_t<_Tp&>> + : public true_type + { }; + + // Type properties. + + /// is_const + template + struct is_const + : public false_type { }; + + template + struct is_const<_Tp const> + : public true_type { }; + + /// is_volatile + template + struct is_volatile + : public false_type { }; + + template + struct is_volatile<_Tp volatile> + : public true_type { }; + + /// is_trivial + template + struct is_trivial + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + // is_trivially_copyable + template + struct is_trivially_copyable + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_standard_layout + template + struct is_standard_layout + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_pod (deprecated in C++20) + // Could use is_standard_layout && is_trivial instead of the builtin. + template + struct + _GLIBCXX20_DEPRECATED("use is_standard_layout && is_trivial instead") + is_pod + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_literal_type + template + struct is_literal_type + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_empty + template + struct is_empty + : public integral_constant + { }; + + /// is_polymorphic + template + struct is_polymorphic + : public integral_constant + { }; + +#if __cplusplus >= 201402L +#define __cpp_lib_is_final 201402L + /// is_final + template + struct is_final + : public integral_constant + { }; +#endif + + /// is_abstract + template + struct is_abstract + : public integral_constant + { }; + + template::value> + struct __is_signed_helper + : public false_type { }; + + template + struct __is_signed_helper<_Tp, true> + : public integral_constant + { }; + + /// is_signed + template + struct is_signed + : public __is_signed_helper<_Tp>::type + { }; + + /// is_unsigned + template + struct is_unsigned + : public __and_, __not_>> + { }; + + + // Destructible and constructible type properties. + + /** + * @brief Utility to simplify expressions used in unevaluated operands + * @ingroup utilities + */ + + template + _Up + __declval(int); + + template + _Tp + __declval(long); + + template + auto declval() noexcept -> decltype(__declval<_Tp>(0)); + + template + struct extent; + + template + struct remove_all_extents; + + template + struct __is_array_known_bounds + : public integral_constant::value > 0)> + { }; + + template + struct __is_array_unknown_bounds + : public __and_, __not_>> + { }; + + // In N3290 is_destructible does not say anything about function + // types and abstract types, see LWG 2049. This implementation + // describes function types as non-destructible and all complete + // object types as destructible, iff the explicit destructor + // call expression is wellformed. + struct __do_is_destructible_impl + { + template().~_Tp())> + static true_type __test(int); + + template + static false_type __test(...); + }; + + template + struct __is_destructible_impl + : public __do_is_destructible_impl + { + typedef decltype(__test<_Tp>(0)) type; + }; + + template, + __is_array_unknown_bounds<_Tp>, + is_function<_Tp>>::value, + bool = __or_, is_scalar<_Tp>>::value> + struct __is_destructible_safe; + + template + struct __is_destructible_safe<_Tp, false, false> + : public __is_destructible_impl::type>::type + { }; + + template + struct __is_destructible_safe<_Tp, true, false> + : public false_type { }; + + template + struct __is_destructible_safe<_Tp, false, true> + : public true_type { }; + + /// is_destructible + template + struct is_destructible + : public __is_destructible_safe<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + // is_nothrow_destructible requires that is_destructible is + // satisfied as well. We realize that by mimicing the + // implementation of is_destructible but refer to noexcept(expr) + // instead of decltype(expr). + struct __do_is_nt_destructible_impl + { + template + static __bool_constant().~_Tp())> + __test(int); + + template + static false_type __test(...); + }; + + template + struct __is_nt_destructible_impl + : public __do_is_nt_destructible_impl + { + typedef decltype(__test<_Tp>(0)) type; + }; + + template, + __is_array_unknown_bounds<_Tp>, + is_function<_Tp>>::value, + bool = __or_, is_scalar<_Tp>>::value> + struct __is_nt_destructible_safe; + + template + struct __is_nt_destructible_safe<_Tp, false, false> + : public __is_nt_destructible_impl::type>::type + { }; + + template + struct __is_nt_destructible_safe<_Tp, true, false> + : public false_type { }; + + template + struct __is_nt_destructible_safe<_Tp, false, true> + : public true_type { }; + + /// is_nothrow_destructible + template + struct is_nothrow_destructible + : public __is_nt_destructible_safe<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + +#if __GNUC__ >= 8 + template + struct __is_constructible_impl + : public __bool_constant<__is_constructible(_Tp, _Args...)> + { }; +#else + // Implementation of __is_constructible_impl. + + struct __do_is_default_constructible_impl + { + template + static true_type __test(int); + + template + static false_type __test(...); + }; + + template + struct __is_default_constructible_impl + : public __do_is_default_constructible_impl + { + typedef decltype(__test<_Tp>(0)) type; + }; + + template + struct __is_default_constructible_atom + : public __and_<__not_>, + __is_default_constructible_impl<_Tp>>::type + { }; + + template::value> + struct __is_default_constructible_safe; + + // The following technique is a workaround for a current core language + // restriction, which does not allow for array types to occur in + // functional casts of the form T(). Complete arrays can be default- + // constructed, if the element type is default-constructible, but + // arrays with unknown bounds are not. + template + struct __is_default_constructible_safe<_Tp, true> + : public __and_<__is_array_known_bounds<_Tp>, + __is_default_constructible_atom::type>>::type + { }; + + template + struct __is_default_constructible_safe<_Tp, false> + : public __is_default_constructible_atom<_Tp>::type + { }; + + // The hardest part of this trait is the binary direct-initialization + // case, because we hit into a functional cast of the form T(arg). + // This implementation uses different strategies depending on the + // target type to reduce the test overhead as much as possible: + // + // a) For a reference target type, we use a static_cast expression + // modulo its extra cases. + // + // b) For a non-reference target type we use a ::new expression. + struct __do_is_static_castable_impl + { + template(declval<_From>()))> + static true_type __test(int); + + template + static false_type __test(...); + }; + + template + struct __is_static_castable_impl + : public __do_is_static_castable_impl + { + typedef decltype(__test<_From, _To>(0)) type; + }; + + template + struct __is_static_castable_safe + : public __is_static_castable_impl<_From, _To>::type + { }; + + // __is_static_castable + template + struct __is_static_castable + : public integral_constant::value)> + { }; + + // Implementation for non-reference types. To meet the proper + // variable definition semantics, we also need to test for + // is_destructible in this case. + // This form should be simplified by a single expression: + // ::delete ::new _Tp(declval<_Arg>()), see c++/51222. + struct __do_is_direct_constructible_impl + { + template()))> + static true_type __test(int); + + template + static false_type __test(...); + }; + + template + struct __is_direct_constructible_impl + : public __do_is_direct_constructible_impl + { + typedef decltype(__test<_Tp, _Arg>(0)) type; + }; + + template + struct __is_direct_constructible_new_safe + : public __and_, + __is_direct_constructible_impl<_Tp, _Arg>> + { }; + + template + struct is_same; + + template + struct is_base_of; + + template + struct remove_reference; + + template, + is_function<_From>>>::value> + struct __is_base_to_derived_ref; + + template + struct is_constructible; + + // Detect whether we have a downcast situation during + // reference binding. + template + struct __is_base_to_derived_ref<_From, _To, true> + { + typedef typename remove_cv::type>::type __src_t; + typedef typename remove_cv::type>::type __dst_t; + typedef __and_<__not_>, + is_base_of<__src_t, __dst_t>, + __not_>> type; + static constexpr bool value = type::value; + }; + + template + struct __is_base_to_derived_ref<_From, _To, false> + : public false_type + { }; + + template, + is_rvalue_reference<_To>>::value> + struct __is_lvalue_to_rvalue_ref; + + // Detect whether we have an lvalue of non-function type + // bound to a reference-compatible rvalue-reference. + template + struct __is_lvalue_to_rvalue_ref<_From, _To, true> + { + typedef typename remove_cv::type>::type __src_t; + typedef typename remove_cv::type>::type __dst_t; + typedef __and_<__not_>, + __or_, + is_base_of<__dst_t, __src_t>>> type; + static constexpr bool value = type::value; + }; + + template + struct __is_lvalue_to_rvalue_ref<_From, _To, false> + : public false_type + { }; + + // Here we handle direct-initialization to a reference type as + // equivalent to a static_cast modulo overshooting conversions. + // These are restricted to the following conversions: + // a) A base class value to a derived class reference + // b) An lvalue to an rvalue-reference of reference-compatible + // types that are not functions + template + struct __is_direct_constructible_ref_cast + : public __and_<__is_static_castable<_Arg, _Tp>, + __not_<__or_<__is_base_to_derived_ref<_Arg, _Tp>, + __is_lvalue_to_rvalue_ref<_Arg, _Tp> + >>> + { }; + + template + struct __is_direct_constructible_new + : public conditional::value, + __is_direct_constructible_ref_cast<_Tp, _Arg>, + __is_direct_constructible_new_safe<_Tp, _Arg> + >::type + { }; + + template + struct __is_direct_constructible + : public __is_direct_constructible_new<_Tp, _Arg>::type + { }; + + // Since default-construction and binary direct-initialization have + // been handled separately, the implementation of the remaining + // n-ary construction cases is rather straightforward. We can use + // here a functional cast, because array types are excluded anyway + // and this form is never interpreted as a C cast. + struct __do_is_nary_constructible_impl + { + template()...))> + static true_type __test(int); + + template + static false_type __test(...); + }; + + template + struct __is_nary_constructible_impl + : public __do_is_nary_constructible_impl + { + typedef decltype(__test<_Tp, _Args...>(0)) type; + }; + + template + struct __is_nary_constructible + : public __is_nary_constructible_impl<_Tp, _Args...>::type + { + static_assert(sizeof...(_Args) > 1, + "Only useful for > 1 arguments"); + }; + + template + struct __is_constructible_impl + : public __is_nary_constructible<_Tp, _Args...> + { }; + + template + struct __is_constructible_impl<_Tp, _Arg> + : public __is_direct_constructible<_Tp, _Arg> + { }; + + template + struct __is_constructible_impl<_Tp> + : public __is_default_constructible_safe<_Tp>::type + { }; +#endif + + /// is_constructible + template + struct is_constructible + : public __is_constructible_impl<_Tp, _Args...> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_default_constructible + template + struct is_default_constructible + : public __is_constructible_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_copy_constructible_impl; + + template + struct __is_copy_constructible_impl<_Tp, false> + : public false_type { }; + + template + struct __is_copy_constructible_impl<_Tp, true> + : public __is_constructible_impl<_Tp, const _Tp&> + { }; + + /// is_copy_constructible + template + struct is_copy_constructible + : public __is_copy_constructible_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_move_constructible_impl; + + template + struct __is_move_constructible_impl<_Tp, false> + : public false_type { }; + + template + struct __is_move_constructible_impl<_Tp, true> + : public __is_constructible_impl<_Tp, _Tp&&> + { }; + + /// is_move_constructible + template + struct is_move_constructible + : public __is_move_constructible_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template + struct __is_nt_constructible_impl + : public false_type + { }; + + template + struct __is_nt_constructible_impl + : public __bool_constant()...))> + { }; + + template + struct __is_nt_constructible_impl + : public __bool_constant(std::declval<_Arg>()))> + { }; + + template + struct __is_nt_constructible_impl + : public __bool_constant + { }; + + template + struct __is_nt_constructible_impl + : public __bool_constant::type())> + { }; + +#if __cpp_aggregate_paren_init + template + struct __is_nt_constructible_impl + : public __is_nt_constructible_impl + { }; + + template + struct __is_nt_constructible_impl + : public __and_<__is_nt_constructible_impl...> + { }; +#endif + +#if __GNUC__ >= 8 + template + using __is_nothrow_constructible_impl + = __is_nt_constructible_impl<__is_constructible(_Tp, _Args...), + _Tp, _Args...>; +#else + template + using __is_nothrow_constructible_impl + = __is_nt_constructible_impl<__is_constructible_impl<_Tp, _Args...>::value, + _Tp, _Args...>; +#endif + + /// is_nothrow_constructible + template + struct is_nothrow_constructible + : public __is_nothrow_constructible_impl<_Tp, _Args...>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_nothrow_default_constructible + template + struct is_nothrow_default_constructible + : public __is_nothrow_constructible_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + + template::value> + struct __is_nothrow_copy_constructible_impl; + + template + struct __is_nothrow_copy_constructible_impl<_Tp, false> + : public false_type { }; + + template + struct __is_nothrow_copy_constructible_impl<_Tp, true> + : public __is_nothrow_constructible_impl<_Tp, const _Tp&> + { }; + + /// is_nothrow_copy_constructible + template + struct is_nothrow_copy_constructible + : public __is_nothrow_copy_constructible_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_nothrow_move_constructible_impl; + + template + struct __is_nothrow_move_constructible_impl<_Tp, false> + : public false_type { }; + + template + struct __is_nothrow_move_constructible_impl<_Tp, true> + : public __is_nothrow_constructible_impl<_Tp, _Tp&&> + { }; + + /// is_nothrow_move_constructible + template + struct is_nothrow_move_constructible + : public __is_nothrow_move_constructible_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + +#if __GNUC__ >= 8 + /// is_assignable + template + struct is_assignable + : public __bool_constant<__is_assignable(_Tp, _Up)> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; +#else + template + class __is_assignable_helper + { + template() = declval<_Up1>())> + static true_type + __test(int); + + template + static false_type + __test(...); + + public: + typedef decltype(__test<_Tp, _Up>(0)) type; + }; + + /// is_assignable + template + struct is_assignable + : public __is_assignable_helper<_Tp, _Up>::type + { }; +#endif + + template::value> + struct __is_copy_assignable_impl; + + template + struct __is_copy_assignable_impl<_Tp, false> + : public false_type { }; + +#if __GNUC__ >= 8 + template + struct __is_copy_assignable_impl<_Tp, true> + : public __bool_constant<__is_assignable(_Tp&, const _Tp&)> + { }; +#else + template + struct __is_copy_assignable_impl<_Tp, true> + : public is_assignable<_Tp&, const _Tp&> + { }; +#endif + + /// is_copy_assignable + template + struct is_copy_assignable + : public __is_copy_assignable_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_move_assignable_impl; + + template + struct __is_move_assignable_impl<_Tp, false> + : public false_type { }; + +#if __GNUC__ >= 8 + template + struct __is_move_assignable_impl<_Tp, true> + : public __bool_constant<__is_assignable(_Tp&, _Tp&&)> + { }; +#else + template + struct __is_move_assignable_impl<_Tp, true> + : public is_assignable<_Tp&, _Tp&&> + { }; +#endif + + /// is_move_assignable + template + struct is_move_assignable + : public __is_move_assignable_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template + struct __is_nt_assignable_impl + : public integral_constant() = declval<_Up>())> + { }; + +#if __GNUC__ >= 8 + template + struct __is_nothrow_assignable_impl + : public __and_<__bool_constant<__is_assignable(_Tp, _Up)>, + __is_nt_assignable_impl<_Tp, _Up>> + { }; +#else + template + struct __is_nothrow_assignable_impl + : public __and_, + __is_nt_assignable_impl<_Tp, _Up>> + { }; +#endif + + /// is_nothrow_assignable + template + struct is_nothrow_assignable + : public __is_nothrow_assignable_impl<_Tp, _Up> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_nt_copy_assignable_impl; + + template + struct __is_nt_copy_assignable_impl<_Tp, false> + : public false_type { }; + + template + struct __is_nt_copy_assignable_impl<_Tp, true> + : public __is_nothrow_assignable_impl<_Tp&, const _Tp&> + { }; + + /// is_nothrow_copy_assignable + template + struct is_nothrow_copy_assignable + : public __is_nt_copy_assignable_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_nt_move_assignable_impl; + + template + struct __is_nt_move_assignable_impl<_Tp, false> + : public false_type { }; + + template + struct __is_nt_move_assignable_impl<_Tp, true> + : public __is_nothrow_assignable_impl<_Tp&, _Tp&&> + { }; + + /// is_nothrow_move_assignable + template + struct is_nothrow_move_assignable + : public __is_nt_move_assignable_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_trivially_constructible + template + struct is_trivially_constructible + : public __bool_constant<__is_trivially_constructible(_Tp, _Args...)> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_trivially_default_constructible + template + struct is_trivially_default_constructible + : public __bool_constant<__is_trivially_constructible(_Tp)> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + struct __do_is_implicitly_default_constructible_impl + { + template + static void __helper(const _Tp&); + + template + static true_type __test(const _Tp&, + decltype(__helper({}))* = 0); + + static false_type __test(...); + }; + + template + struct __is_implicitly_default_constructible_impl + : public __do_is_implicitly_default_constructible_impl + { + typedef decltype(__test(declval<_Tp>())) type; + }; + + template + struct __is_implicitly_default_constructible_safe + : public __is_implicitly_default_constructible_impl<_Tp>::type + { }; + + template + struct __is_implicitly_default_constructible + : public __and_<__is_constructible_impl<_Tp>, + __is_implicitly_default_constructible_safe<_Tp>> + { }; + + template::value> + struct __is_trivially_copy_constructible_impl; + + template + struct __is_trivially_copy_constructible_impl<_Tp, false> + : public false_type { }; + + template + struct __is_trivially_copy_constructible_impl<_Tp, true> + : public __and_<__is_copy_constructible_impl<_Tp>, + integral_constant> + { }; + + /// is_trivially_copy_constructible + template + struct is_trivially_copy_constructible + : public __is_trivially_copy_constructible_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_trivially_move_constructible_impl; + + template + struct __is_trivially_move_constructible_impl<_Tp, false> + : public false_type { }; + + template + struct __is_trivially_move_constructible_impl<_Tp, true> + : public __and_<__is_move_constructible_impl<_Tp>, + integral_constant> + { }; + + /// is_trivially_move_constructible + template + struct is_trivially_move_constructible + : public __is_trivially_move_constructible_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_trivially_assignable + template + struct is_trivially_assignable + : public __bool_constant<__is_trivially_assignable(_Tp, _Up)> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_trivially_copy_assignable_impl; + + template + struct __is_trivially_copy_assignable_impl<_Tp, false> + : public false_type { }; + + template + struct __is_trivially_copy_assignable_impl<_Tp, true> + : public __bool_constant<__is_trivially_assignable(_Tp&, const _Tp&)> + { }; + + /// is_trivially_copy_assignable + template + struct is_trivially_copy_assignable + : public __is_trivially_copy_assignable_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template::value> + struct __is_trivially_move_assignable_impl; + + template + struct __is_trivially_move_assignable_impl<_Tp, false> + : public false_type { }; + + template + struct __is_trivially_move_assignable_impl<_Tp, true> + : public __bool_constant<__is_trivially_assignable(_Tp&, _Tp&&)> + { }; + + /// is_trivially_move_assignable + template + struct is_trivially_move_assignable + : public __is_trivially_move_assignable_impl<_Tp> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_trivially_destructible + template + struct is_trivially_destructible + : public __and_<__is_destructible_safe<_Tp>, + __bool_constant<__has_trivial_destructor(_Tp)>> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + + /// has_virtual_destructor + template + struct has_virtual_destructor + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + + // type property queries. + + /// alignment_of + template + struct alignment_of + : public integral_constant + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// rank + template + struct rank + : public integral_constant { }; + + template + struct rank<_Tp[_Size]> + : public integral_constant::value> { }; + + template + struct rank<_Tp[]> + : public integral_constant::value> { }; + + /// extent + template + struct extent + : public integral_constant { }; + + template + struct extent<_Tp[_Size], _Uint> + : public integral_constant::value> + { }; + + template + struct extent<_Tp[], _Uint> + : public integral_constant::value> + { }; + + + // Type relations. + + /// is_same + template + struct is_same +#ifdef _GLIBCXX_BUILTIN_IS_SAME_AS + : public integral_constant +#else + : public false_type +#endif + { }; + +#ifndef _GLIBCXX_BUILTIN_IS_SAME_AS + template + struct is_same<_Tp, _Tp> + : public true_type + { }; +#endif + + /// is_base_of + template + struct is_base_of + : public integral_constant + { }; + + template, is_function<_To>, + is_array<_To>>::value> + struct __is_convertible_helper + { + typedef typename is_void<_To>::type type; + }; + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wctor-dtor-privacy" + template + class __is_convertible_helper<_From, _To, false> + { + template + static void __test_aux(_To1) noexcept; + + template(std::declval<_From1>()))> + static true_type + __test(int); + + template + static false_type + __test(...); + + public: + typedef decltype(__test<_From, _To>(0)) type; + }; +#pragma GCC diagnostic pop + + /// is_convertible + template + struct is_convertible + : public __is_convertible_helper<_From, _To>::type + { }; + + // helper trait for unique_ptr, shared_ptr, and span + template + using __is_array_convertible + = is_convertible<_FromElementType(*)[], _ToElementType(*)[]>; + +#if __cplusplus >= 202002L +#define __cpp_lib_is_nothrow_convertible 201806L + +#if __has_builtin(__is_nothrow_convertible) + /// is_nothrow_convertible_v + template + inline constexpr bool is_nothrow_convertible_v + = __is_nothrow_convertible(_From, _To); + + /// is_nothrow_convertible + template + struct is_nothrow_convertible + : public bool_constant> + { }; +#else + template, is_function<_To>, + is_array<_To>>::value> + struct __is_nt_convertible_helper + : is_void<_To> + { }; + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wctor-dtor-privacy" + template + class __is_nt_convertible_helper<_From, _To, false> + { + template + static void __test_aux(_To1) noexcept; + + template + static + __bool_constant(std::declval<_From1>()))> + __test(int); + + template + static false_type + __test(...); + + public: + using type = decltype(__test<_From, _To>(0)); + }; +#pragma GCC diagnostic pop + + /// is_nothrow_convertible + template + struct is_nothrow_convertible + : public __is_nt_convertible_helper<_From, _To>::type + { }; + + /// is_nothrow_convertible_v + template + inline constexpr bool is_nothrow_convertible_v + = is_nothrow_convertible<_From, _To>::value; +#endif +#endif // C++2a + + // Const-volatile modifications. + + /// remove_const + template + struct remove_const + { typedef _Tp type; }; + + template + struct remove_const<_Tp const> + { typedef _Tp type; }; + + /// remove_volatile + template + struct remove_volatile + { typedef _Tp type; }; + + template + struct remove_volatile<_Tp volatile> + { typedef _Tp type; }; + + /// remove_cv + template + struct remove_cv + { using type = _Tp; }; + + template + struct remove_cv + { using type = _Tp; }; + + template + struct remove_cv + { using type = _Tp; }; + + template + struct remove_cv + { using type = _Tp; }; + + /// add_const + template + struct add_const + { typedef _Tp const type; }; + + /// add_volatile + template + struct add_volatile + { typedef _Tp volatile type; }; + + /// add_cv + template + struct add_cv + { + typedef typename + add_const::type>::type type; + }; + +#if __cplusplus > 201103L + +#define __cpp_lib_transformation_trait_aliases 201304 + + /// Alias template for remove_const + template + using remove_const_t = typename remove_const<_Tp>::type; + + /// Alias template for remove_volatile + template + using remove_volatile_t = typename remove_volatile<_Tp>::type; + + /// Alias template for remove_cv + template + using remove_cv_t = typename remove_cv<_Tp>::type; + + /// Alias template for add_const + template + using add_const_t = typename add_const<_Tp>::type; + + /// Alias template for add_volatile + template + using add_volatile_t = typename add_volatile<_Tp>::type; + + /// Alias template for add_cv + template + using add_cv_t = typename add_cv<_Tp>::type; +#endif + + // Reference transformations. + + /// remove_reference + template + struct remove_reference + { typedef _Tp type; }; + + template + struct remove_reference<_Tp&> + { typedef _Tp type; }; + + template + struct remove_reference<_Tp&&> + { typedef _Tp type; }; + + template::value> + struct __add_lvalue_reference_helper + { typedef _Tp type; }; + + template + struct __add_lvalue_reference_helper<_Tp, true> + { typedef _Tp& type; }; + + /// add_lvalue_reference + template + struct add_lvalue_reference + : public __add_lvalue_reference_helper<_Tp> + { }; + + template::value> + struct __add_rvalue_reference_helper + { typedef _Tp type; }; + + template + struct __add_rvalue_reference_helper<_Tp, true> + { typedef _Tp&& type; }; + + /// add_rvalue_reference + template + struct add_rvalue_reference + : public __add_rvalue_reference_helper<_Tp> + { }; + +#if __cplusplus > 201103L + /// Alias template for remove_reference + template + using remove_reference_t = typename remove_reference<_Tp>::type; + + /// Alias template for add_lvalue_reference + template + using add_lvalue_reference_t = typename add_lvalue_reference<_Tp>::type; + + /// Alias template for add_rvalue_reference + template + using add_rvalue_reference_t = typename add_rvalue_reference<_Tp>::type; +#endif + + // Sign modifications. + + // Utility for constructing identically cv-qualified types. + template + struct __cv_selector; + + template + struct __cv_selector<_Unqualified, false, false> + { typedef _Unqualified __type; }; + + template + struct __cv_selector<_Unqualified, false, true> + { typedef volatile _Unqualified __type; }; + + template + struct __cv_selector<_Unqualified, true, false> + { typedef const _Unqualified __type; }; + + template + struct __cv_selector<_Unqualified, true, true> + { typedef const volatile _Unqualified __type; }; + + template::value, + bool _IsVol = is_volatile<_Qualified>::value> + class __match_cv_qualifiers + { + typedef __cv_selector<_Unqualified, _IsConst, _IsVol> __match; + + public: + typedef typename __match::__type __type; + }; + + // Utility for finding the unsigned versions of signed integral types. + template + struct __make_unsigned + { typedef _Tp __type; }; + + template<> + struct __make_unsigned + { typedef unsigned char __type; }; + + template<> + struct __make_unsigned + { typedef unsigned char __type; }; + + template<> + struct __make_unsigned + { typedef unsigned short __type; }; + + template<> + struct __make_unsigned + { typedef unsigned int __type; }; + + template<> + struct __make_unsigned + { typedef unsigned long __type; }; + + template<> + struct __make_unsigned + { typedef unsigned long long __type; }; + +#if defined(__GLIBCXX_TYPE_INT_N_0) + template<> + struct __make_unsigned<__GLIBCXX_TYPE_INT_N_0> + { typedef unsigned __GLIBCXX_TYPE_INT_N_0 __type; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + template<> + struct __make_unsigned<__GLIBCXX_TYPE_INT_N_1> + { typedef unsigned __GLIBCXX_TYPE_INT_N_1 __type; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + template<> + struct __make_unsigned<__GLIBCXX_TYPE_INT_N_2> + { typedef unsigned __GLIBCXX_TYPE_INT_N_2 __type; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + template<> + struct __make_unsigned<__GLIBCXX_TYPE_INT_N_3> + { typedef unsigned __GLIBCXX_TYPE_INT_N_3 __type; }; +#endif + + // Select between integral and enum: not possible to be both. + template::value, + bool _IsEnum = is_enum<_Tp>::value> + class __make_unsigned_selector; + + template + class __make_unsigned_selector<_Tp, true, false> + { + using __unsigned_type + = typename __make_unsigned<__remove_cv_t<_Tp>>::__type; + + public: + using __type + = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type; + }; + + class __make_unsigned_selector_base + { + protected: + template struct _List { }; + + template + struct _List<_Tp, _Up...> : _List<_Up...> + { static constexpr size_t __size = sizeof(_Tp); }; + + template + struct __select; + + template + struct __select<_Sz, _List<_Uint, _UInts...>, true> + { using __type = _Uint; }; + + template + struct __select<_Sz, _List<_Uint, _UInts...>, false> + : __select<_Sz, _List<_UInts...>> + { }; + }; + + // Choose unsigned integer type with the smallest rank and same size as _Tp + template + class __make_unsigned_selector<_Tp, false, true> + : __make_unsigned_selector_base + { + // With -fshort-enums, an enum may be as small as a char. + using _UInts = _List; + + using __unsigned_type = typename __select::__type; + + public: + using __type + = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type; + }; + + // wchar_t, char8_t, char16_t and char32_t are integral types but are + // neither signed integer types nor unsigned integer types, so must be + // transformed to the unsigned integer type with the smallest rank. + // Use the partial specialization for enumeration types to do that. +#if defined(_GLIBCXX_USE_WCHAR_T) + template<> + struct __make_unsigned + { + using __type + = typename __make_unsigned_selector::__type; + }; +#endif + +#ifdef _GLIBCXX_USE_CHAR8_T + template<> + struct __make_unsigned + { + using __type + = typename __make_unsigned_selector::__type; + }; +#endif + + template<> + struct __make_unsigned + { + using __type + = typename __make_unsigned_selector::__type; + }; + + template<> + struct __make_unsigned + { + using __type + = typename __make_unsigned_selector::__type; + }; + + // Given an integral/enum type, return the corresponding unsigned + // integer type. + // Primary template. + /// make_unsigned + template + struct make_unsigned + { typedef typename __make_unsigned_selector<_Tp>::__type type; }; + + // Integral, but don't define. + template<> + struct make_unsigned; + + + // Utility for finding the signed versions of unsigned integral types. + template + struct __make_signed + { typedef _Tp __type; }; + + template<> + struct __make_signed + { typedef signed char __type; }; + + template<> + struct __make_signed + { typedef signed char __type; }; + + template<> + struct __make_signed + { typedef signed short __type; }; + + template<> + struct __make_signed + { typedef signed int __type; }; + + template<> + struct __make_signed + { typedef signed long __type; }; + + template<> + struct __make_signed + { typedef signed long long __type; }; + +#if defined(__GLIBCXX_TYPE_INT_N_0) + template<> + struct __make_signed + { typedef __GLIBCXX_TYPE_INT_N_0 __type; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_1) + template<> + struct __make_signed + { typedef __GLIBCXX_TYPE_INT_N_1 __type; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_2) + template<> + struct __make_signed + { typedef __GLIBCXX_TYPE_INT_N_2 __type; }; +#endif +#if defined(__GLIBCXX_TYPE_INT_N_3) + template<> + struct __make_signed + { typedef __GLIBCXX_TYPE_INT_N_3 __type; }; +#endif + + // Select between integral and enum: not possible to be both. + template::value, + bool _IsEnum = is_enum<_Tp>::value> + class __make_signed_selector; + + template + class __make_signed_selector<_Tp, true, false> + { + using __signed_type + = typename __make_signed<__remove_cv_t<_Tp>>::__type; + + public: + using __type + = typename __match_cv_qualifiers<_Tp, __signed_type>::__type; + }; + + // Choose signed integer type with the smallest rank and same size as _Tp + template + class __make_signed_selector<_Tp, false, true> + { + typedef typename __make_unsigned_selector<_Tp>::__type __unsigned_type; + + public: + typedef typename __make_signed_selector<__unsigned_type>::__type __type; + }; + + // wchar_t, char16_t and char32_t are integral types but are neither + // signed integer types nor unsigned integer types, so must be + // transformed to the signed integer type with the smallest rank. + // Use the partial specialization for enumeration types to do that. +#if defined(_GLIBCXX_USE_WCHAR_T) + template<> + struct __make_signed + { + using __type + = typename __make_signed_selector::__type; + }; +#endif + +#if defined(_GLIBCXX_USE_CHAR8_T) + template<> + struct __make_signed + { + using __type + = typename __make_signed_selector::__type; + }; +#endif + + template<> + struct __make_signed + { + using __type + = typename __make_signed_selector::__type; + }; + + template<> + struct __make_signed + { + using __type + = typename __make_signed_selector::__type; + }; + + // Given an integral/enum type, return the corresponding signed + // integer type. + // Primary template. + /// make_signed + template + struct make_signed + { typedef typename __make_signed_selector<_Tp>::__type type; }; + + // Integral, but don't define. + template<> + struct make_signed; + +#if __cplusplus > 201103L + /// Alias template for make_signed + template + using make_signed_t = typename make_signed<_Tp>::type; + + /// Alias template for make_unsigned + template + using make_unsigned_t = typename make_unsigned<_Tp>::type; +#endif + + // Array modifications. + + /// remove_extent + template + struct remove_extent + { typedef _Tp type; }; + + template + struct remove_extent<_Tp[_Size]> + { typedef _Tp type; }; + + template + struct remove_extent<_Tp[]> + { typedef _Tp type; }; + + /// remove_all_extents + template + struct remove_all_extents + { typedef _Tp type; }; + + template + struct remove_all_extents<_Tp[_Size]> + { typedef typename remove_all_extents<_Tp>::type type; }; + + template + struct remove_all_extents<_Tp[]> + { typedef typename remove_all_extents<_Tp>::type type; }; + +#if __cplusplus > 201103L + /// Alias template for remove_extent + template + using remove_extent_t = typename remove_extent<_Tp>::type; + + /// Alias template for remove_all_extents + template + using remove_all_extents_t = typename remove_all_extents<_Tp>::type; +#endif + + // Pointer modifications. + + template + struct __remove_pointer_helper + { typedef _Tp type; }; + + template + struct __remove_pointer_helper<_Tp, _Up*> + { typedef _Up type; }; + + /// remove_pointer + template + struct remove_pointer + : public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>> + { }; + + /// add_pointer + template, + is_void<_Tp>>::value> + struct __add_pointer_helper + { typedef _Tp type; }; + + template + struct __add_pointer_helper<_Tp, true> + { typedef typename remove_reference<_Tp>::type* type; }; + + template + struct add_pointer + : public __add_pointer_helper<_Tp> + { }; + +#if __cplusplus > 201103L + /// Alias template for remove_pointer + template + using remove_pointer_t = typename remove_pointer<_Tp>::type; + + /// Alias template for add_pointer + template + using add_pointer_t = typename add_pointer<_Tp>::type; +#endif + + template + struct __aligned_storage_msa + { + union __type + { + unsigned char __data[_Len]; + struct __attribute__((__aligned__)) { } __align; + }; + }; + + /** + * @brief Alignment type. + * + * The value of _Align is a default-alignment which shall be the + * most stringent alignment requirement for any C++ object type + * whose size is no greater than _Len (3.9). The member typedef + * type shall be a POD type suitable for use as uninitialized + * storage for any object whose size is at most _Len and whose + * alignment is a divisor of _Align. + */ + template::__type)> + struct aligned_storage + { + union type + { + unsigned char __data[_Len]; + struct __attribute__((__aligned__((_Align)))) { } __align; + }; + }; + + template + struct __strictest_alignment + { + static const size_t _S_alignment = 0; + static const size_t _S_size = 0; + }; + + template + struct __strictest_alignment<_Tp, _Types...> + { + static const size_t _S_alignment = + alignof(_Tp) > __strictest_alignment<_Types...>::_S_alignment + ? alignof(_Tp) : __strictest_alignment<_Types...>::_S_alignment; + static const size_t _S_size = + sizeof(_Tp) > __strictest_alignment<_Types...>::_S_size + ? sizeof(_Tp) : __strictest_alignment<_Types...>::_S_size; + }; + + /** + * @brief Provide aligned storage for types. + * + * [meta.trans.other] + * + * Provides aligned storage for any of the provided types of at + * least size _Len. + * + * @see aligned_storage + */ + template + struct aligned_union + { + private: + static_assert(sizeof...(_Types) != 0, "At least one type is required"); + + using __strictest = __strictest_alignment<_Types...>; + static const size_t _S_len = _Len > __strictest::_S_size + ? _Len : __strictest::_S_size; + public: + /// The value of the strictest alignment of _Types. + static const size_t alignment_value = __strictest::_S_alignment; + /// The storage. + typedef typename aligned_storage<_S_len, alignment_value>::type type; + }; + + template + const size_t aligned_union<_Len, _Types...>::alignment_value; + + // Decay trait for arrays and functions, used for perfect forwarding + // in make_pair, make_tuple, etc. + template::value, + bool _IsFunction = is_function<_Up>::value> + struct __decay_selector; + + // NB: DR 705. + template + struct __decay_selector<_Up, false, false> + { typedef __remove_cv_t<_Up> __type; }; + + template + struct __decay_selector<_Up, true, false> + { typedef typename remove_extent<_Up>::type* __type; }; + + template + struct __decay_selector<_Up, false, true> + { typedef typename add_pointer<_Up>::type __type; }; + + /// decay + template + class decay + { + typedef typename remove_reference<_Tp>::type __remove_type; + + public: + typedef typename __decay_selector<__remove_type>::__type type; + }; + + // __decay_t (std::decay_t for C++11). + template + using __decay_t = typename decay<_Tp>::type; + + template + class reference_wrapper; + + // Helper which adds a reference to a type when given a reference_wrapper + template + struct __strip_reference_wrapper + { + typedef _Tp __type; + }; + + template + struct __strip_reference_wrapper > + { + typedef _Tp& __type; + }; + + template + using __decay_and_strip = __strip_reference_wrapper<__decay_t<_Tp>>; + + + // Primary template. + /// Define a member typedef @c type only if a boolean constant is true. + template + struct enable_if + { }; + + // Partial specialization for true. + template + struct enable_if + { typedef _Tp type; }; + + // __enable_if_t (std::enable_if_t for C++11) + template + using __enable_if_t = typename enable_if<_Cond, _Tp>::type; + + template + using _Require = __enable_if_t<__and_<_Cond...>::value>; + + // Primary template. + /// Define a member typedef @c type to one of two argument types. + template + struct conditional + { typedef _Iftrue type; }; + + // Partial specialization for false. + template + struct conditional + { typedef _Iffalse type; }; + + // __remove_cvref_t (std::remove_cvref_t for C++11). + template + using __remove_cvref_t + = typename remove_cv::type>::type; + + /// common_type + template + struct common_type; + + // Sfinae-friendly common_type implementation: + + struct __do_common_type_impl + { + template + using __cond_t + = decltype(true ? std::declval<_Tp>() : std::declval<_Up>()); + + // if decay_t() : declval())> + // denotes a valid type, let C denote that type. + template + static __success_type<__decay_t<__cond_t<_Tp, _Up>>> + _S_test(int); + +#if __cplusplus > 201703L + // Otherwise, if COND-RES(CREF(D1), CREF(D2)) denotes a type, + // let C denote the type decay_t. + template + static __success_type<__remove_cvref_t<__cond_t>> + _S_test_2(int); +#endif + + template + static __failure_type + _S_test_2(...); + + template + static decltype(_S_test_2<_Tp, _Up>(0)) + _S_test(...); + }; + + // If sizeof...(T) is zero, there shall be no member type. + template<> + struct common_type<> + { }; + + // If sizeof...(T) is one, the same type, if any, as common_type_t. + template + struct common_type<_Tp0> + : public common_type<_Tp0, _Tp0> + { }; + + // If sizeof...(T) is two, ... + template, typename _Dp2 = __decay_t<_Tp2>> + struct __common_type_impl + { + // If is_same_v is false or is_same_v is false, + // let C denote the same type, if any, as common_type_t. + using type = common_type<_Dp1, _Dp2>; + }; + + template + struct __common_type_impl<_Tp1, _Tp2, _Tp1, _Tp2> + : private __do_common_type_impl + { + // Otherwise, if decay_t() : declval())> + // denotes a valid type, let C denote that type. + using type = decltype(_S_test<_Tp1, _Tp2>(0)); + }; + + // If sizeof...(T) is two, ... + template + struct common_type<_Tp1, _Tp2> + : public __common_type_impl<_Tp1, _Tp2>::type + { }; + + template + struct __common_type_pack + { }; + + template + struct __common_type_fold; + + // If sizeof...(T) is greater than two, ... + template + struct common_type<_Tp1, _Tp2, _Rp...> + : public __common_type_fold, + __common_type_pack<_Rp...>> + { }; + + // Let C denote the same type, if any, as common_type_t. + // If there is such a type C, type shall denote the same type, if any, + // as common_type_t. + template + struct __common_type_fold<_CTp, __common_type_pack<_Rp...>, + __void_t> + : public common_type + { }; + + // Otherwise, there shall be no member type. + template + struct __common_type_fold<_CTp, _Rp, void> + { }; + + template::value> + struct __underlying_type_impl + { + using type = __underlying_type(_Tp); + }; + + template + struct __underlying_type_impl<_Tp, false> + { }; + + /// The underlying type of an enum. + template + struct underlying_type + : public __underlying_type_impl<_Tp> + { }; + + template + struct __declval_protector + { + static const bool __stop = false; + }; + + template + auto declval() noexcept -> decltype(__declval<_Tp>(0)) + { + static_assert(__declval_protector<_Tp>::__stop, + "declval() must not be used!"); + return __declval<_Tp>(0); + } + + /// result_of + template + class result_of; + + // Sfinae-friendly result_of implementation: + +#define __cpp_lib_result_of_sfinae 201210 + + struct __invoke_memfun_ref { }; + struct __invoke_memfun_deref { }; + struct __invoke_memobj_ref { }; + struct __invoke_memobj_deref { }; + struct __invoke_other { }; + + // Associate a tag type with a specialization of __success_type. + template + struct __result_of_success : __success_type<_Tp> + { using __invoke_type = _Tag; }; + + // [func.require] paragraph 1 bullet 1: + struct __result_of_memfun_ref_impl + { + template + static __result_of_success().*std::declval<_Fp>())(std::declval<_Args>()...) + ), __invoke_memfun_ref> _S_test(int); + + template + static __failure_type _S_test(...); + }; + + template + struct __result_of_memfun_ref + : private __result_of_memfun_ref_impl + { + typedef decltype(_S_test<_MemPtr, _Arg, _Args...>(0)) type; + }; + + // [func.require] paragraph 1 bullet 2: + struct __result_of_memfun_deref_impl + { + template + static __result_of_success()).*std::declval<_Fp>())(std::declval<_Args>()...) + ), __invoke_memfun_deref> _S_test(int); + + template + static __failure_type _S_test(...); + }; + + template + struct __result_of_memfun_deref + : private __result_of_memfun_deref_impl + { + typedef decltype(_S_test<_MemPtr, _Arg, _Args...>(0)) type; + }; + + // [func.require] paragraph 1 bullet 3: + struct __result_of_memobj_ref_impl + { + template + static __result_of_success().*std::declval<_Fp>() + ), __invoke_memobj_ref> _S_test(int); + + template + static __failure_type _S_test(...); + }; + + template + struct __result_of_memobj_ref + : private __result_of_memobj_ref_impl + { + typedef decltype(_S_test<_MemPtr, _Arg>(0)) type; + }; + + // [func.require] paragraph 1 bullet 4: + struct __result_of_memobj_deref_impl + { + template + static __result_of_success()).*std::declval<_Fp>() + ), __invoke_memobj_deref> _S_test(int); + + template + static __failure_type _S_test(...); + }; + + template + struct __result_of_memobj_deref + : private __result_of_memobj_deref_impl + { + typedef decltype(_S_test<_MemPtr, _Arg>(0)) type; + }; + + template + struct __result_of_memobj; + + template + struct __result_of_memobj<_Res _Class::*, _Arg> + { + typedef __remove_cvref_t<_Arg> _Argval; + typedef _Res _Class::* _MemPtr; + typedef typename conditional<__or_, + is_base_of<_Class, _Argval>>::value, + __result_of_memobj_ref<_MemPtr, _Arg>, + __result_of_memobj_deref<_MemPtr, _Arg> + >::type::type type; + }; + + template + struct __result_of_memfun; + + template + struct __result_of_memfun<_Res _Class::*, _Arg, _Args...> + { + typedef typename remove_reference<_Arg>::type _Argval; + typedef _Res _Class::* _MemPtr; + typedef typename conditional::value, + __result_of_memfun_ref<_MemPtr, _Arg, _Args...>, + __result_of_memfun_deref<_MemPtr, _Arg, _Args...> + >::type::type type; + }; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2219. INVOKE-ing a pointer to member with a reference_wrapper + // as the object expression + + // Used by result_of, invoke etc. to unwrap a reference_wrapper. + template> + struct __inv_unwrap + { + using type = _Tp; + }; + + template + struct __inv_unwrap<_Tp, reference_wrapper<_Up>> + { + using type = _Up&; + }; + + template + struct __result_of_impl + { + typedef __failure_type type; + }; + + template + struct __result_of_impl + : public __result_of_memobj<__decay_t<_MemPtr>, + typename __inv_unwrap<_Arg>::type> + { }; + + template + struct __result_of_impl + : public __result_of_memfun<__decay_t<_MemPtr>, + typename __inv_unwrap<_Arg>::type, _Args...> + { }; + + // [func.require] paragraph 1 bullet 5: + struct __result_of_other_impl + { + template + static __result_of_success()(std::declval<_Args>()...) + ), __invoke_other> _S_test(int); + + template + static __failure_type _S_test(...); + }; + + template + struct __result_of_impl + : private __result_of_other_impl + { + typedef decltype(_S_test<_Functor, _ArgTypes...>(0)) type; + }; + + // __invoke_result (std::invoke_result for C++11) + template + struct __invoke_result + : public __result_of_impl< + is_member_object_pointer< + typename remove_reference<_Functor>::type + >::value, + is_member_function_pointer< + typename remove_reference<_Functor>::type + >::value, + _Functor, _ArgTypes... + >::type + { }; + + template + struct result_of<_Functor(_ArgTypes...)> + : public __invoke_result<_Functor, _ArgTypes...> + { }; + +#if __cplusplus >= 201402L + /// Alias template for aligned_storage + template::__type)> + using aligned_storage_t = typename aligned_storage<_Len, _Align>::type; + + template + using aligned_union_t = typename aligned_union<_Len, _Types...>::type; + + /// Alias template for decay + template + using decay_t = typename decay<_Tp>::type; + + /// Alias template for enable_if + template + using enable_if_t = typename enable_if<_Cond, _Tp>::type; + + /// Alias template for conditional + template + using conditional_t = typename conditional<_Cond, _Iftrue, _Iffalse>::type; + + /// Alias template for common_type + template + using common_type_t = typename common_type<_Tp...>::type; + + /// Alias template for underlying_type + template + using underlying_type_t = typename underlying_type<_Tp>::type; + + /// Alias template for result_of + template + using result_of_t = typename result_of<_Tp>::type; +#endif // C++14 + +#if __cplusplus >= 201703L || !defined(__STRICT_ANSI__) // c++17 or gnu++11 +#define __cpp_lib_void_t 201411 + /// A metafunction that always yields void, used for detecting valid types. + template using void_t = void; +#endif + + /// Implementation of the detection idiom (negative case). + template class _Op, typename... _Args> + struct __detector + { + using value_t = false_type; + using type = _Default; + }; + + /// Implementation of the detection idiom (positive case). + template class _Op, + typename... _Args> + struct __detector<_Default, __void_t<_Op<_Args...>>, _Op, _Args...> + { + using value_t = true_type; + using type = _Op<_Args...>; + }; + + // Detect whether _Op<_Args...> is a valid type, use _Default if not. + template class _Op, + typename... _Args> + using __detected_or = __detector<_Default, void, _Op, _Args...>; + + // _Op<_Args...> if that is a valid type, otherwise _Default. + template class _Op, + typename... _Args> + using __detected_or_t + = typename __detected_or<_Default, _Op, _Args...>::type; + + /// @} group metaprogramming + + /** + * Use SFINAE to determine if the type _Tp has a publicly-accessible + * member type _NTYPE. + */ +#define _GLIBCXX_HAS_NESTED_TYPE(_NTYPE) \ + template> \ + struct __has_##_NTYPE \ + : false_type \ + { }; \ + template \ + struct __has_##_NTYPE<_Tp, __void_t> \ + : true_type \ + { }; + + template + struct __is_swappable; + + template + struct __is_nothrow_swappable; + + template + class tuple; + + template + struct __is_tuple_like_impl : false_type + { }; + + template + struct __is_tuple_like_impl> : true_type + { }; + + // Internal type trait that allows us to sfinae-protect tuple_cat. + template + struct __is_tuple_like + : public __is_tuple_like_impl<__remove_cvref_t<_Tp>>::type + { }; + + template + _GLIBCXX20_CONSTEXPR + inline + _Require<__not_<__is_tuple_like<_Tp>>, + is_move_constructible<_Tp>, + is_move_assignable<_Tp>> + swap(_Tp&, _Tp&) + noexcept(__and_, + is_nothrow_move_assignable<_Tp>>::value); + + template + _GLIBCXX20_CONSTEXPR + inline + __enable_if_t<__is_swappable<_Tp>::value> + swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm]) + noexcept(__is_nothrow_swappable<_Tp>::value); + + namespace __swappable_details { + using std::swap; + + struct __do_is_swappable_impl + { + template(), std::declval<_Tp&>()))> + static true_type __test(int); + + template + static false_type __test(...); + }; + + struct __do_is_nothrow_swappable_impl + { + template + static __bool_constant< + noexcept(swap(std::declval<_Tp&>(), std::declval<_Tp&>())) + > __test(int); + + template + static false_type __test(...); + }; + + } // namespace __swappable_details + + template + struct __is_swappable_impl + : public __swappable_details::__do_is_swappable_impl + { + typedef decltype(__test<_Tp>(0)) type; + }; + + template + struct __is_nothrow_swappable_impl + : public __swappable_details::__do_is_nothrow_swappable_impl + { + typedef decltype(__test<_Tp>(0)) type; + }; + + template + struct __is_swappable + : public __is_swappable_impl<_Tp>::type + { }; + + template + struct __is_nothrow_swappable + : public __is_nothrow_swappable_impl<_Tp>::type + { }; + +#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++11 +#define __cpp_lib_is_swappable 201603 + /// Metafunctions used for detecting swappable types: p0185r1 + + /// is_swappable + template + struct is_swappable + : public __is_swappable_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + /// is_nothrow_swappable + template + struct is_nothrow_swappable + : public __is_nothrow_swappable_impl<_Tp>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + +#if __cplusplus >= 201402L + /// is_swappable_v + template + _GLIBCXX17_INLINE constexpr bool is_swappable_v = + is_swappable<_Tp>::value; + + /// is_nothrow_swappable_v + template + _GLIBCXX17_INLINE constexpr bool is_nothrow_swappable_v = + is_nothrow_swappable<_Tp>::value; +#endif // __cplusplus >= 201402L + + namespace __swappable_with_details { + using std::swap; + + struct __do_is_swappable_with_impl + { + template(), std::declval<_Up>())), + typename + = decltype(swap(std::declval<_Up>(), std::declval<_Tp>()))> + static true_type __test(int); + + template + static false_type __test(...); + }; + + struct __do_is_nothrow_swappable_with_impl + { + template + static __bool_constant< + noexcept(swap(std::declval<_Tp>(), std::declval<_Up>())) + && + noexcept(swap(std::declval<_Up>(), std::declval<_Tp>())) + > __test(int); + + template + static false_type __test(...); + }; + + } // namespace __swappable_with_details + + template + struct __is_swappable_with_impl + : public __swappable_with_details::__do_is_swappable_with_impl + { + typedef decltype(__test<_Tp, _Up>(0)) type; + }; + + // Optimization for the homogenous lvalue case, not required: + template + struct __is_swappable_with_impl<_Tp&, _Tp&> + : public __swappable_details::__do_is_swappable_impl + { + typedef decltype(__test<_Tp&>(0)) type; + }; + + template + struct __is_nothrow_swappable_with_impl + : public __swappable_with_details::__do_is_nothrow_swappable_with_impl + { + typedef decltype(__test<_Tp, _Up>(0)) type; + }; + + // Optimization for the homogenous lvalue case, not required: + template + struct __is_nothrow_swappable_with_impl<_Tp&, _Tp&> + : public __swappable_details::__do_is_nothrow_swappable_impl + { + typedef decltype(__test<_Tp&>(0)) type; + }; + + /// is_swappable_with + template + struct is_swappable_with + : public __is_swappable_with_impl<_Tp, _Up>::type + { }; + + /// is_nothrow_swappable_with + template + struct is_nothrow_swappable_with + : public __is_nothrow_swappable_with_impl<_Tp, _Up>::type + { }; + +#if __cplusplus >= 201402L + /// is_swappable_with_v + template + _GLIBCXX17_INLINE constexpr bool is_swappable_with_v = + is_swappable_with<_Tp, _Up>::value; + + /// is_nothrow_swappable_with_v + template + _GLIBCXX17_INLINE constexpr bool is_nothrow_swappable_with_v = + is_nothrow_swappable_with<_Tp, _Up>::value; +#endif // __cplusplus >= 201402L + +#endif// c++1z or gnu++11 + + // __is_invocable (std::is_invocable for C++11) + + // The primary template is used for invalid INVOKE expressions. + template::value, typename = void> + struct __is_invocable_impl : false_type { }; + + // Used for valid INVOKE and INVOKE expressions. + template + struct __is_invocable_impl<_Result, _Ret, + /* is_void<_Ret> = */ true, + __void_t> + : true_type + { }; + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wctor-dtor-privacy" + // Used for INVOKE expressions to check the implicit conversion to R. + template + struct __is_invocable_impl<_Result, _Ret, + /* is_void<_Ret> = */ false, + __void_t> + { + private: + // The type of the INVOKE expression. + // Unlike declval, this doesn't add_rvalue_reference. + static typename _Result::type _S_get(); + + template + static void _S_conv(_Tp); + + // This overload is viable if INVOKE(f, args...) can convert to _Tp. + template(_S_get()))> + static true_type + _S_test(int); + + template + static false_type + _S_test(...); + + public: + using type = decltype(_S_test<_Ret>(1)); + }; +#pragma GCC diagnostic pop + + template + struct __is_invocable + : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>::type + { }; + + template + constexpr bool __call_is_nt(__invoke_memfun_ref) + { + using _Up = typename __inv_unwrap<_Tp>::type; + return noexcept((std::declval<_Up>().*std::declval<_Fn>())( + std::declval<_Args>()...)); + } + + template + constexpr bool __call_is_nt(__invoke_memfun_deref) + { + return noexcept(((*std::declval<_Tp>()).*std::declval<_Fn>())( + std::declval<_Args>()...)); + } + + template + constexpr bool __call_is_nt(__invoke_memobj_ref) + { + using _Up = typename __inv_unwrap<_Tp>::type; + return noexcept(std::declval<_Up>().*std::declval<_Fn>()); + } + + template + constexpr bool __call_is_nt(__invoke_memobj_deref) + { + return noexcept((*std::declval<_Tp>()).*std::declval<_Fn>()); + } + + template + constexpr bool __call_is_nt(__invoke_other) + { + return noexcept(std::declval<_Fn>()(std::declval<_Args>()...)); + } + + template + struct __call_is_nothrow + : __bool_constant< + std::__call_is_nt<_Fn, _Args...>(typename _Result::__invoke_type{}) + > + { }; + + template + using __call_is_nothrow_ + = __call_is_nothrow<__invoke_result<_Fn, _Args...>, _Fn, _Args...>; + + // __is_nothrow_invocable (std::is_nothrow_invocable for C++11) + template + struct __is_nothrow_invocable + : __and_<__is_invocable<_Fn, _Args...>, + __call_is_nothrow_<_Fn, _Args...>>::type + { }; + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wctor-dtor-privacy" + struct __nonesuchbase {}; + struct __nonesuch : private __nonesuchbase { + ~__nonesuch() = delete; + __nonesuch(__nonesuch const&) = delete; + void operator=(__nonesuch const&) = delete; + }; +#pragma GCC diagnostic pop + +#if __cplusplus >= 201703L +# define __cpp_lib_is_invocable 201703 + + /// std::invoke_result + template + struct invoke_result + : public __invoke_result<_Functor, _ArgTypes...> + { }; + + /// std::invoke_result_t + template + using invoke_result_t = typename invoke_result<_Fn, _Args...>::type; + + /// std::is_invocable + template + struct is_invocable + : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}), + "_Fn must be a complete class or an unbounded array"); + }; + + /// std::is_invocable_r + template + struct is_invocable_r + : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, _Ret>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}), + "_Fn must be a complete class or an unbounded array"); + }; + + /// std::is_nothrow_invocable + template + struct is_nothrow_invocable + : __and_<__is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>, + __call_is_nothrow_<_Fn, _ArgTypes...>>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}), + "_Fn must be a complete class or an unbounded array"); + }; + + /// @cond undocumented + // This checks that the INVOKE expression is well-formed and that the + // conversion to R does not throw. It does *not* check whether the INVOKE + // expression itself can throw. That is done by __call_is_nothrow_ instead. + template + using __is_nt_invocable_impl + = typename __is_invocable_impl<_Result, _Ret>::__nothrow_conv; + /// @endcond + + /// std::is_nothrow_invocable_r + template + struct is_nothrow_invocable_r + : __and_<__is_nt_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, _Ret>, + __call_is_nothrow_<_Fn, _ArgTypes...>>::type + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}), + "_Fn must be a complete class or an unbounded array"); + static_assert((std::__is_complete_or_unbounded( + __type_identity<_ArgTypes>{}) && ...), + "each argument type must be a complete class or an unbounded array"); + static_assert(std::__is_complete_or_unbounded(__type_identity<_Ret>{}), + "_Ret must be a complete class or an unbounded array"); + }; + + /// std::is_invocable_v + template + inline constexpr bool is_invocable_v = is_invocable<_Fn, _Args...>::value; + + /// std::is_nothrow_invocable_v + template + inline constexpr bool is_nothrow_invocable_v + = is_nothrow_invocable<_Fn, _Args...>::value; + + /// std::is_invocable_r_v + template + inline constexpr bool is_invocable_r_v + = is_invocable_r<_Ret, _Fn, _Args...>::value; + + /// std::is_nothrow_invocable_r_v + template + inline constexpr bool is_nothrow_invocable_r_v + = is_nothrow_invocable_r<_Ret, _Fn, _Args...>::value; +#endif // C++17 + +#if __cplusplus >= 201703L +# define __cpp_lib_type_trait_variable_templates 201510L +template + inline constexpr bool is_void_v = is_void<_Tp>::value; +template + inline constexpr bool is_null_pointer_v = is_null_pointer<_Tp>::value; +template + inline constexpr bool is_integral_v = is_integral<_Tp>::value; +template + inline constexpr bool is_floating_point_v = is_floating_point<_Tp>::value; +template + inline constexpr bool is_array_v = is_array<_Tp>::value; +template + inline constexpr bool is_pointer_v = is_pointer<_Tp>::value; +template + inline constexpr bool is_lvalue_reference_v = + is_lvalue_reference<_Tp>::value; +template + inline constexpr bool is_rvalue_reference_v = + is_rvalue_reference<_Tp>::value; +template + inline constexpr bool is_member_object_pointer_v = + is_member_object_pointer<_Tp>::value; +template + inline constexpr bool is_member_function_pointer_v = + is_member_function_pointer<_Tp>::value; +template + inline constexpr bool is_enum_v = is_enum<_Tp>::value; +template + inline constexpr bool is_union_v = is_union<_Tp>::value; +template + inline constexpr bool is_class_v = is_class<_Tp>::value; +template + inline constexpr bool is_function_v = is_function<_Tp>::value; +template + inline constexpr bool is_reference_v = is_reference<_Tp>::value; +template + inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; +template + inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; +template + inline constexpr bool is_object_v = is_object<_Tp>::value; +template + inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; +template + inline constexpr bool is_compound_v = is_compound<_Tp>::value; +template + inline constexpr bool is_member_pointer_v = is_member_pointer<_Tp>::value; +template + inline constexpr bool is_const_v = is_const<_Tp>::value; +template + inline constexpr bool is_volatile_v = is_volatile<_Tp>::value; +template + inline constexpr bool is_trivial_v = is_trivial<_Tp>::value; +template + inline constexpr bool is_trivially_copyable_v = + is_trivially_copyable<_Tp>::value; +template + inline constexpr bool is_standard_layout_v = is_standard_layout<_Tp>::value; +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" +template + _GLIBCXX20_DEPRECATED("use is_standard_layout_v && is_trivial_v instead") + inline constexpr bool is_pod_v = is_pod<_Tp>::value; +#pragma GCC diagnostic pop +template + inline constexpr bool is_literal_type_v = is_literal_type<_Tp>::value; +template + inline constexpr bool is_empty_v = is_empty<_Tp>::value; +template + inline constexpr bool is_polymorphic_v = is_polymorphic<_Tp>::value; +template + inline constexpr bool is_abstract_v = is_abstract<_Tp>::value; +template + inline constexpr bool is_final_v = is_final<_Tp>::value; +template + inline constexpr bool is_signed_v = is_signed<_Tp>::value; +template + inline constexpr bool is_unsigned_v = is_unsigned<_Tp>::value; +template + inline constexpr bool is_constructible_v = + is_constructible<_Tp, _Args...>::value; +template + inline constexpr bool is_default_constructible_v = + is_default_constructible<_Tp>::value; +template + inline constexpr bool is_copy_constructible_v = + is_copy_constructible<_Tp>::value; +template + inline constexpr bool is_move_constructible_v = + is_move_constructible<_Tp>::value; +template + inline constexpr bool is_assignable_v = is_assignable<_Tp, _Up>::value; +template + inline constexpr bool is_copy_assignable_v = is_copy_assignable<_Tp>::value; +template + inline constexpr bool is_move_assignable_v = is_move_assignable<_Tp>::value; +template + inline constexpr bool is_destructible_v = is_destructible<_Tp>::value; +template + inline constexpr bool is_trivially_constructible_v = + is_trivially_constructible<_Tp, _Args...>::value; +template + inline constexpr bool is_trivially_default_constructible_v = + is_trivially_default_constructible<_Tp>::value; +template + inline constexpr bool is_trivially_copy_constructible_v = + is_trivially_copy_constructible<_Tp>::value; +template + inline constexpr bool is_trivially_move_constructible_v = + is_trivially_move_constructible<_Tp>::value; +template + inline constexpr bool is_trivially_assignable_v = + is_trivially_assignable<_Tp, _Up>::value; +template + inline constexpr bool is_trivially_copy_assignable_v = + is_trivially_copy_assignable<_Tp>::value; +template + inline constexpr bool is_trivially_move_assignable_v = + is_trivially_move_assignable<_Tp>::value; +template + inline constexpr bool is_trivially_destructible_v = + is_trivially_destructible<_Tp>::value; +template + inline constexpr bool is_nothrow_constructible_v = + is_nothrow_constructible<_Tp, _Args...>::value; +template + inline constexpr bool is_nothrow_default_constructible_v = + is_nothrow_default_constructible<_Tp>::value; +template + inline constexpr bool is_nothrow_copy_constructible_v = + is_nothrow_copy_constructible<_Tp>::value; +template + inline constexpr bool is_nothrow_move_constructible_v = + is_nothrow_move_constructible<_Tp>::value; +template + inline constexpr bool is_nothrow_assignable_v = + is_nothrow_assignable<_Tp, _Up>::value; +template + inline constexpr bool is_nothrow_copy_assignable_v = + is_nothrow_copy_assignable<_Tp>::value; +template + inline constexpr bool is_nothrow_move_assignable_v = + is_nothrow_move_assignable<_Tp>::value; +template + inline constexpr bool is_nothrow_destructible_v = + is_nothrow_destructible<_Tp>::value; +template + inline constexpr bool has_virtual_destructor_v = + has_virtual_destructor<_Tp>::value; +template + inline constexpr size_t alignment_of_v = alignment_of<_Tp>::value; +template + inline constexpr size_t rank_v = rank<_Tp>::value; +template + inline constexpr size_t extent_v = extent<_Tp, _Idx>::value; +#ifdef _GLIBCXX_BUILTIN_IS_SAME_AS +template + inline constexpr bool is_same_v = _GLIBCXX_BUILTIN_IS_SAME_AS(_Tp, _Up); +#else +template + inline constexpr bool is_same_v = std::is_same<_Tp, _Up>::value; +#endif +template + inline constexpr bool is_base_of_v = is_base_of<_Base, _Derived>::value; +template + inline constexpr bool is_convertible_v = is_convertible<_From, _To>::value; + +#ifdef _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP +# define __cpp_lib_has_unique_object_representations 201606 + /// has_unique_object_representations + template + struct has_unique_object_representations + : bool_constant<__has_unique_object_representations( + remove_cv_t> + )> + { + static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}), + "template argument must be a complete class or an unbounded array"); + }; + + template + inline constexpr bool has_unique_object_representations_v + = has_unique_object_representations<_Tp>::value; +#endif + +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE +# define __cpp_lib_is_aggregate 201703 + /// is_aggregate + template + struct is_aggregate + : bool_constant<__is_aggregate(remove_cv_t<_Tp>)> + { }; + + /// is_aggregate_v + template + inline constexpr bool is_aggregate_v = is_aggregate<_Tp>::value; +#endif +#endif // C++17 + +#if __cplusplus > 201703L +#define __cpp_lib_remove_cvref 201711L + + /// Remove references and cv-qualifiers. + template + struct remove_cvref + { + using type = __remove_cvref_t<_Tp>; + }; + + template + using remove_cvref_t = __remove_cvref_t<_Tp>; + +#define __cpp_lib_type_identity 201806L + /// Identity metafunction. + template + struct type_identity { using type = _Tp; }; + + template + using type_identity_t = typename type_identity<_Tp>::type; + +#define __cpp_lib_unwrap_ref 201811L + + /// Unwrap a reference_wrapper + template + struct unwrap_reference { using type = _Tp; }; + + template + struct unwrap_reference> { using type = _Tp&; }; + + template + using unwrap_reference_t = typename unwrap_reference<_Tp>::type; + + /// Decay type and if it's a reference_wrapper, unwrap it + template + struct unwrap_ref_decay { using type = unwrap_reference_t>; }; + + template + using unwrap_ref_decay_t = typename unwrap_ref_decay<_Tp>::type; + +#define __cpp_lib_bounded_array_traits 201902L + + /// True for a type that is an array of known bound. + template + struct is_bounded_array + : public __is_array_known_bounds<_Tp> + { }; + + /// True for a type that is an array of unknown bound. + template + struct is_unbounded_array + : public __is_array_unknown_bounds<_Tp> + { }; + + template + inline constexpr bool is_bounded_array_v + = is_bounded_array<_Tp>::value; + + template + inline constexpr bool is_unbounded_array_v + = is_unbounded_array<_Tp>::value; + +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + +#define __cpp_lib_is_constant_evaluated 201811L + + constexpr inline bool + is_constant_evaluated() noexcept + { return __builtin_is_constant_evaluated(); } +#endif + + template + using __copy_cv = typename __match_cv_qualifiers<_From, _To>::__type; + + template + using __cond_res + = decltype(false ? declval<_Xp(&)()>()() : declval<_Yp(&)()>()()); + + template + struct __common_ref_impl + { }; + + // [meta.trans.other], COMMON-REF(A, B) + template + using __common_ref = typename __common_ref_impl<_Ap, _Bp>::type; + + // If A and B are both lvalue reference types, ... + template + struct __common_ref_impl<_Xp&, _Yp&, + __void_t<__cond_res<__copy_cv<_Xp, _Yp>&, __copy_cv<_Yp, _Xp>&>>> + { using type = __cond_res<__copy_cv<_Xp, _Yp>&, __copy_cv<_Yp, _Xp>&>; }; + + // let C be remove_reference_t&& + template + using __common_ref_C = remove_reference_t<__common_ref<_Xp&, _Yp&>>&&; + + // If A and B are both rvalue reference types, ... + template + struct __common_ref_impl<_Xp&&, _Yp&&, + _Require>, + is_convertible<_Yp&&, __common_ref_C<_Xp, _Yp>>>> + { using type = __common_ref_C<_Xp, _Yp>; }; + + // let D be COMMON-REF(const X&, Y&) + template + using __common_ref_D = __common_ref; + + // If A is an rvalue reference and B is an lvalue reference, ... + template + struct __common_ref_impl<_Xp&&, _Yp&, + _Require>>> + { using type = __common_ref_D<_Xp, _Yp>; }; + + // If A is an lvalue reference and B is an rvalue reference, ... + template + struct __common_ref_impl<_Xp&, _Yp&&> + : __common_ref_impl<_Yp&&, _Xp&> + { }; + + template class _TQual, template class _UQual> + struct basic_common_reference + { }; + + template + struct __xref + { template using __type = __copy_cv<_Tp, _Up>; }; + + template + struct __xref<_Tp&> + { template using __type = __copy_cv<_Tp, _Up>&; }; + + template + struct __xref<_Tp&&> + { template using __type = __copy_cv<_Tp, _Up>&&; }; + + template + using __basic_common_ref + = typename basic_common_reference, + remove_cvref_t<_Tp2>, + __xref<_Tp1>::template __type, + __xref<_Tp2>::template __type>::type; + + template + struct common_reference; + + template + using common_reference_t = typename common_reference<_Tp...>::type; + + // If sizeof...(T) is zero, there shall be no member type. + template<> + struct common_reference<> + { }; + + // If sizeof...(T) is one ... + template + struct common_reference<_Tp0> + { using type = _Tp0; }; + + template + struct __common_reference_impl + : __common_reference_impl<_Tp1, _Tp2, _Bullet + 1> + { }; + + // If sizeof...(T) is two ... + template + struct common_reference<_Tp1, _Tp2> + : __common_reference_impl<_Tp1, _Tp2> + { }; + + // If T1 and T2 are reference types and COMMON-REF(T1, T2) is well-formed, ... + template + struct __common_reference_impl<_Tp1&, _Tp2&, 1, + void_t<__common_ref<_Tp1&, _Tp2&>>> + { using type = __common_ref<_Tp1&, _Tp2&>; }; + + template + struct __common_reference_impl<_Tp1&&, _Tp2&&, 1, + void_t<__common_ref<_Tp1&&, _Tp2&&>>> + { using type = __common_ref<_Tp1&&, _Tp2&&>; }; + + template + struct __common_reference_impl<_Tp1&, _Tp2&&, 1, + void_t<__common_ref<_Tp1&, _Tp2&&>>> + { using type = __common_ref<_Tp1&, _Tp2&&>; }; + + template + struct __common_reference_impl<_Tp1&&, _Tp2&, 1, + void_t<__common_ref<_Tp1&&, _Tp2&>>> + { using type = __common_ref<_Tp1&&, _Tp2&>; }; + + // Otherwise, if basic_common_reference<...>::type is well-formed, ... + template + struct __common_reference_impl<_Tp1, _Tp2, 2, + void_t<__basic_common_ref<_Tp1, _Tp2>>> + { using type = __basic_common_ref<_Tp1, _Tp2>; }; + + // Otherwise, if COND-RES(T1, T2) is well-formed, ... + template + struct __common_reference_impl<_Tp1, _Tp2, 3, + void_t<__cond_res<_Tp1, _Tp2>>> + { using type = __cond_res<_Tp1, _Tp2>; }; + + // Otherwise, if common_type_t is well-formed, ... + template + struct __common_reference_impl<_Tp1, _Tp2, 4, + void_t>> + { using type = common_type_t<_Tp1, _Tp2>; }; + + // Otherwise, there shall be no member type. + template + struct __common_reference_impl<_Tp1, _Tp2, 5, void> + { }; + + // Otherwise, if sizeof...(T) is greater than two, ... + template + struct common_reference<_Tp1, _Tp2, _Rest...> + : __common_type_fold, + __common_type_pack<_Rest...>> + { }; + + // Reuse __common_type_fold for common_reference + template + struct __common_type_fold, + __common_type_pack<_Rest...>, + void_t>> + : public common_reference, _Rest...> + { }; + +#endif // C++2a + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++11 + +#endif // _GLIBCXX_TYPE_TRAITS diff --git a/resources/sources/avr-libstdcpp/include/unordered_map b/resources/sources/avr-libstdcpp/include/unordered_map new file mode 100644 index 000000000..e05238fe9 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/unordered_map @@ -0,0 +1,101 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/unordered_map + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_UNORDERED_MAP +#define _GLIBCXX_UNORDERED_MAP 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include +#include +#include +#include // equal_to, _Identity, _Select1st +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template, + typename _Pred = std::equal_to<_Key>> + using unordered_map + = std::unordered_map<_Key, _Tp, _Hash, _Pred, + polymorphic_allocator>>; + template, + typename _Pred = std::equal_to<_Key>> + using unordered_multimap + = std::unordered_multimap<_Key, _Tp, _Hash, _Pred, + polymorphic_allocator>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + template + inline typename unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>::size_type + erase_if(unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont, + _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } + + template + inline typename unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>:: + size_type + erase_if(unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont, + _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif // C++11 + +#endif // _GLIBCXX_UNORDERED_MAP diff --git a/resources/sources/avr-libstdcpp/include/unordered_set b/resources/sources/avr-libstdcpp/include/unordered_set new file mode 100644 index 000000000..6cbd242ff --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/unordered_set @@ -0,0 +1,100 @@ +// -*- C++ -*- + +// Copyright (C) 2007-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/unordered_set + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_UNORDERED_SET +#define _GLIBCXX_UNORDERED_SET 1 + +#pragma GCC system_header + +#if __cplusplus < 201103L +# include +#else + +#include +#include +#include +#include +#include +#include +#include // equal_to, _Identity, _Select1st +#include +#include +#include +#include +#include + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr + { + template class polymorphic_allocator; + template, + typename _Pred = std::equal_to<_Key>> + using unordered_set + = std::unordered_set<_Key, _Hash, _Pred, + polymorphic_allocator<_Key>>; + template, + typename _Pred = std::equal_to<_Key>> + using unordered_multiset + = std::unordered_multiset<_Key, _Hash, _Pred, + polymorphic_allocator<_Key>>; + } // namespace pmr +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + template + inline typename unordered_set<_Key, _Hash, _CPred, _Alloc>::size_type + erase_if(unordered_set<_Key, _Hash, _CPred, _Alloc>& __cont, + _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } + + template + inline typename unordered_multiset<_Key, _Hash, _CPred, _Alloc>::size_type + erase_if(unordered_multiset<_Key, _Hash, _CPred, _Alloc>& __cont, + _Predicate __pred) + { return __detail::__erase_nodes_if(__cont, __pred); } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif // C++11 + +#endif // _GLIBCXX_UNORDERED_SET diff --git a/resources/sources/avr-libstdcpp/include/utility b/resources/sources/avr-libstdcpp/include/utility new file mode 100644 index 000000000..f7533d5a5 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/utility @@ -0,0 +1,538 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/utility + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_UTILITY +#define _GLIBCXX_UTILITY 1 + +#pragma GCC system_header + +/** + * @defgroup utilities Utilities + * + * Components deemed generally useful. Includes pair, tuple, + * forward/move helpers, ratio, function object, metaprogramming and + * type traits, time, date, and memory functions. + */ + +#include +#include +#include + +#if __cplusplus >= 201103L + +#include +#include +#include + +#if __cplusplus > 201703L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /// Finds the size of a given tuple type. + template + struct tuple_size; + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 2313. tuple_size should always derive from integral_constant + // 2770. tuple_size specialization is not SFINAE compatible + + template::type, + typename = typename enable_if::value>::type, + size_t = tuple_size<_Tp>::value> + using __enable_if_has_tuple_size = _Tp; + + template + struct tuple_size> + : public tuple_size<_Tp> { }; + + template + struct tuple_size> + : public tuple_size<_Tp> { }; + + template + struct tuple_size> + : public tuple_size<_Tp> { }; + + /// Gives the type of the ith element of a given tuple type. + template + struct tuple_element; + + // Duplicate of C++14's tuple_element_t for internal use in C++11 mode + template + using __tuple_element_t = typename tuple_element<__i, _Tp>::type; + + template + struct tuple_element<__i, const _Tp> + { + typedef typename add_const<__tuple_element_t<__i, _Tp>>::type type; + }; + + template + struct tuple_element<__i, volatile _Tp> + { + typedef typename add_volatile<__tuple_element_t<__i, _Tp>>::type type; + }; + + template + struct tuple_element<__i, const volatile _Tp> + { + typedef typename add_cv<__tuple_element_t<__i, _Tp>>::type type; + }; + +#if __cplusplus >= 201402L +// The standard says this macro and alias template should be in +// but we define them here, to be available when the partial specializations +// of tuple_element> and tuple_element> are defined. +#define __cpp_lib_tuple_element_t 201402L + + template + using tuple_element_t = typename tuple_element<__i, _Tp>::type; +#endif + + // Various functions which give std::pair a tuple-like interface. + + /// Partial specialization for std::pair + template + struct __is_tuple_like_impl> : true_type + { }; + + /// Partial specialization for std::pair + template + struct tuple_size> + : public integral_constant { }; + + /// Partial specialization for std::pair + template + struct tuple_element<0, std::pair<_Tp1, _Tp2>> + { typedef _Tp1 type; }; + + /// Partial specialization for std::pair + template + struct tuple_element<1, std::pair<_Tp1, _Tp2>> + { typedef _Tp2 type; }; + + template + struct __pair_get; + + template<> + struct __pair_get<0> + { + template + static constexpr _Tp1& + __get(std::pair<_Tp1, _Tp2>& __pair) noexcept + { return __pair.first; } + + template + static constexpr _Tp1&& + __move_get(std::pair<_Tp1, _Tp2>&& __pair) noexcept + { return std::forward<_Tp1>(__pair.first); } + + template + static constexpr const _Tp1& + __const_get(const std::pair<_Tp1, _Tp2>& __pair) noexcept + { return __pair.first; } + + template + static constexpr const _Tp1&& + __const_move_get(const std::pair<_Tp1, _Tp2>&& __pair) noexcept + { return std::forward(__pair.first); } + }; + + template<> + struct __pair_get<1> + { + template + static constexpr _Tp2& + __get(std::pair<_Tp1, _Tp2>& __pair) noexcept + { return __pair.second; } + + template + static constexpr _Tp2&& + __move_get(std::pair<_Tp1, _Tp2>&& __pair) noexcept + { return std::forward<_Tp2>(__pair.second); } + + template + static constexpr const _Tp2& + __const_get(const std::pair<_Tp1, _Tp2>& __pair) noexcept + { return __pair.second; } + + template + static constexpr const _Tp2&& + __const_move_get(const std::pair<_Tp1, _Tp2>&& __pair) noexcept + { return std::forward(__pair.second); } + }; + + template + constexpr typename tuple_element<_Int, std::pair<_Tp1, _Tp2>>::type& + get(std::pair<_Tp1, _Tp2>& __in) noexcept + { return __pair_get<_Int>::__get(__in); } + + template + constexpr typename tuple_element<_Int, std::pair<_Tp1, _Tp2>>::type&& + get(std::pair<_Tp1, _Tp2>&& __in) noexcept + { return __pair_get<_Int>::__move_get(std::move(__in)); } + + template + constexpr const typename tuple_element<_Int, std::pair<_Tp1, _Tp2>>::type& + get(const std::pair<_Tp1, _Tp2>& __in) noexcept + { return __pair_get<_Int>::__const_get(__in); } + + template + constexpr const typename tuple_element<_Int, std::pair<_Tp1, _Tp2>>::type&& + get(const std::pair<_Tp1, _Tp2>&& __in) noexcept + { return __pair_get<_Int>::__const_move_get(std::move(__in)); } + +#if __cplusplus >= 201402L + +#define __cpp_lib_tuples_by_type 201304 + + template + constexpr _Tp& + get(pair<_Tp, _Up>& __p) noexcept + { return __p.first; } + + template + constexpr const _Tp& + get(const pair<_Tp, _Up>& __p) noexcept + { return __p.first; } + + template + constexpr _Tp&& + get(pair<_Tp, _Up>&& __p) noexcept + { return std::move(__p.first); } + + template + constexpr const _Tp&& + get(const pair<_Tp, _Up>&& __p) noexcept + { return std::move(__p.first); } + + template + constexpr _Tp& + get(pair<_Up, _Tp>& __p) noexcept + { return __p.second; } + + template + constexpr const _Tp& + get(const pair<_Up, _Tp>& __p) noexcept + { return __p.second; } + + template + constexpr _Tp&& + get(pair<_Up, _Tp>&& __p) noexcept + { return std::move(__p.second); } + + template + constexpr const _Tp&& + get(const pair<_Up, _Tp>&& __p) noexcept + { return std::move(__p.second); } + +#define __cpp_lib_exchange_function 201304 + + /// Assign @p __new_val to @p __obj and return its previous value. + template + _GLIBCXX20_CONSTEXPR + inline _Tp + exchange(_Tp& __obj, _Up&& __new_val) + { return std::__exchange(__obj, std::forward<_Up>(__new_val)); } + +#endif // C++14 + + // Stores a tuple of indices. Used by tuple and pair, and by bind() to + // extract the elements in a tuple. + template struct _Index_tuple { }; + +#if __GNUC__ >= 8 + +#ifdef __has_builtin +# if __has_builtin(__make_integer_seq) +# define _GLIBCXX_USE_MAKE_INTEGER_SEQ 1 +# endif +#endif + + // Builds an _Index_tuple<0, 1, 2, ..., _Num-1>. + template + struct _Build_index_tuple + { +#if _GLIBCXX_USE_MAKE_INTEGER_SEQ + template + using _IdxTuple = _Index_tuple<_Indices...>; + + using __type = __make_integer_seq<_IdxTuple, size_t, _Num>; +#else + using __type = _Index_tuple<__integer_pack(_Num)...>; +#endif + }; +#else // __GNUC__ < 8 + // Concatenates two _Index_tuples. + template struct _Itup_cat; + + template + struct _Itup_cat<_Index_tuple<_Ind1...>, _Index_tuple<_Ind2...>> + { + using __type = _Index_tuple<_Ind1..., (_Ind2 + sizeof...(_Ind1))...>; + }; + + // Builds an _Index_tuple<0, 1, 2, ..., _Num-1>. + template + struct _Build_index_tuple + : _Itup_cat::__type, + typename _Build_index_tuple<_Num - _Num / 2>::__type> + { }; + + template<> + struct _Build_index_tuple<1> + { + typedef _Index_tuple<0> __type; + }; + + template<> + struct _Build_index_tuple<0> + { + typedef _Index_tuple<> __type; + }; +#endif // __GNUC__ < 8 + +#if __cplusplus > 201103L + +#define __cpp_lib_integer_sequence 201304 + +#if __GNUC__ >= 8 + /// Class template integer_sequence + template + struct integer_sequence + { + typedef _Tp value_type; + static constexpr size_t size() noexcept { return sizeof...(_Idx); } + }; + + /// Alias template make_integer_sequence + template + using make_integer_sequence +#if _GLIBCXX_USE_MAKE_INTEGER_SEQ + = __make_integer_seq; +#else + = integer_sequence<_Tp, __integer_pack(_Num)...>; +#endif + +#undef _GLIBCXX_USE_MAKE_INTEGER_SEQ + +#else // __GNUC__ < 8 + /// Class template integer_sequence + template + struct integer_sequence + { + typedef _Tp value_type; + static constexpr size_t size() { return sizeof...(_Idx); } + }; + + template::__type> + struct _Make_integer_sequence; + + template + struct _Make_integer_sequence<_Tp, _Num, _Index_tuple<_Idx...>> + { + static_assert( _Num >= 0, + "Cannot make integer sequence of negative length" ); + + typedef integer_sequence<_Tp, static_cast<_Tp>(_Idx)...> __type; + }; + + /// Alias template make_integer_sequence + template + using make_integer_sequence + = typename _Make_integer_sequence<_Tp, _Num>::__type; +#endif // __GNUC__ < 8 + + /// Alias template index_sequence + template + using index_sequence = integer_sequence; + + /// Alias template make_index_sequence + template + using make_index_sequence = make_integer_sequence; + + /// Alias template index_sequence_for + template + using index_sequence_for = make_index_sequence; +#endif + +#if __cplusplus > 201402L + + struct in_place_t { + explicit in_place_t() = default; + }; + + inline constexpr in_place_t in_place{}; + + template struct in_place_type_t + { + explicit in_place_type_t() = default; + }; + + template + inline constexpr in_place_type_t<_Tp> in_place_type{}; + + template struct in_place_index_t + { + explicit in_place_index_t() = default; + }; + + template + inline constexpr in_place_index_t<_Idx> in_place_index{}; + + template + struct __is_in_place_type_impl : false_type + { }; + + template + struct __is_in_place_type_impl> : true_type + { }; + + template + struct __is_in_place_type + : public __is_in_place_type_impl<_Tp> + { }; + +#define __cpp_lib_as_const 201510 + template + constexpr add_const_t<_Tp>& as_const(_Tp& __t) noexcept { return __t; } + + template + void as_const(const _Tp&&) = delete; + +#if __cplusplus > 201703L +#define __cpp_lib_integer_comparison_functions 202002L + + template + constexpr bool + cmp_equal(_Tp __t, _Up __u) noexcept + { + static_assert(__is_standard_integer<_Tp>::value); + static_assert(__is_standard_integer<_Up>::value); + + if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>) + return __t == __u; + else if constexpr (is_signed_v<_Tp>) + return __t >= 0 && make_unsigned_t<_Tp>(__t) == __u; + else + return __u >= 0 && __t == make_unsigned_t<_Up>(__u); + } + + template + constexpr bool + cmp_not_equal(_Tp __t, _Up __u) noexcept + { return !std::cmp_equal(__t, __u); } + + template + constexpr bool + cmp_less(_Tp __t, _Up __u) noexcept + { + static_assert(__is_standard_integer<_Tp>::value); + static_assert(__is_standard_integer<_Up>::value); + + if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>) + return __t < __u; + else if constexpr (is_signed_v<_Tp>) + return __t < 0 || make_unsigned_t<_Tp>(__t) < __u; + else + return __u >= 0 && __t < make_unsigned_t<_Up>(__u); + } + + template + constexpr bool + cmp_greater(_Tp __t, _Up __u) noexcept + { return std::cmp_less(__u, __t); } + + template + constexpr bool + cmp_less_equal(_Tp __t, _Up __u) noexcept + { return !std::cmp_less(__u, __t); } + + template + constexpr bool + cmp_greater_equal(_Tp __t, _Up __u) noexcept + { return !std::cmp_less(__t, __u); } + + template + constexpr bool + in_range(_Tp __t) noexcept + { + static_assert(__is_standard_integer<_Up>::value); + static_assert(__is_standard_integer<_Tp>::value); + using __gnu_cxx::__int_traits; + + if constexpr (is_signed_v<_Tp> == is_signed_v<_Up>) + return __int_traits<_Up>::__min <= __t + && __t <= __int_traits<_Up>::__max; + else if constexpr (is_signed_v<_Tp>) + return __t >= 0 + && make_unsigned_t<_Tp>(__t) <= __int_traits<_Up>::__max; + else + return __t <= make_unsigned_t<_Up>(__int_traits<_Up>::__max); + } +#endif // C++20 +#endif // C++17 + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif + +#endif /* _GLIBCXX_UTILITY */ diff --git a/resources/sources/avr-libstdcpp/include/valarray b/resources/sources/avr-libstdcpp/include/valarray new file mode 100644 index 000000000..be2e70dc0 --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/valarray @@ -0,0 +1,1253 @@ +// The template and inlines for the -*- C++ -*- valarray class. + +// Copyright (C) 1997-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/valarray + * This is a Standard C++ Library header. + */ + +// Written by Gabriel Dos Reis + +#ifndef _GLIBCXX_VALARRAY +#define _GLIBCXX_VALARRAY 1 + +#pragma GCC system_header + +#include +#include +#include +#include +#if __cplusplus >= 201103L +#include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + template + class _Expr; + + template + class _ValArray; + +namespace __detail +{ + template class _Meta, class _Dom> + struct _UnClos; + + template class _Meta1, + template class _Meta2, + class _Dom1, class _Dom2> + class _BinClos; + + template class _Meta, class _Dom> + class _SClos; + + template class _Meta, class _Dom> + class _GClos; + + template class _Meta, class _Dom> + class _IClos; + + template class _Meta, class _Dom> + class _ValFunClos; + + template class _Meta, class _Dom> + class _RefFunClos; +} // namespace __detail + + using __detail::_UnClos; + using __detail::_BinClos; + using __detail::_SClos; + using __detail::_GClos; + using __detail::_IClos; + using __detail::_ValFunClos; + using __detail::_RefFunClos; + + template class valarray; // An array of type _Tp + class slice; // BLAS-like slice out of an array + template class slice_array; + class gslice; // generalized slice out of an array + template class gslice_array; + template class mask_array; // masked array + template class indirect_array; // indirected array + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @defgroup numeric_arrays Numeric Arrays + * @ingroup numerics + * + * Classes and functions for representing and manipulating arrays of elements. + * @{ + */ + + /** + * @brief Smart array designed to support numeric processing. + * + * A valarray is an array that provides constraints intended to allow for + * effective optimization of numeric array processing by reducing the + * aliasing that can result from pointer representations. It represents a + * one-dimensional array from which different multidimensional subsets can + * be accessed and modified. + * + * @tparam _Tp Type of object in the array. + */ + template + class valarray + { + template + struct _UnaryOp + { + typedef typename __fun<_Op, _Tp>::result_type __rt; + typedef _Expr<_UnClos<_Op, _ValArray, _Tp>, __rt> _Rt; + }; + public: + typedef _Tp value_type; + + // _lib.valarray.cons_ construct/destroy: + /// Construct an empty array. + valarray(); + + /// Construct an array with @a n elements. + explicit valarray(size_t); + + /// Construct an array with @a n elements initialized to @a t. + valarray(const _Tp&, size_t); + + /// Construct an array initialized to the first @a n elements of @a t. + valarray(const _Tp* __restrict__, size_t); + + /// Copy constructor. + valarray(const valarray&); + +#if __cplusplus >= 201103L + /// Move constructor. + valarray(valarray&&) noexcept; +#endif + + /// Construct an array with the same size and values in @a sa. + valarray(const slice_array<_Tp>&); + + /// Construct an array with the same size and values in @a ga. + valarray(const gslice_array<_Tp>&); + + /// Construct an array with the same size and values in @a ma. + valarray(const mask_array<_Tp>&); + + /// Construct an array with the same size and values in @a ia. + valarray(const indirect_array<_Tp>&); + +#if __cplusplus >= 201103L + /// Construct an array with an initializer_list of values. + valarray(initializer_list<_Tp>); +#endif + + template + valarray(const _Expr<_Dom, _Tp>& __e); + + ~valarray() _GLIBCXX_NOEXCEPT; + + // _lib.valarray.assign_ assignment: + /** + * @brief Assign elements to an array. + * + * Assign elements of array to values in @a v. + * + * @param __v Valarray to get values from. + */ + valarray<_Tp>& operator=(const valarray<_Tp>& __v); + +#if __cplusplus >= 201103L + /** + * @brief Move assign elements to an array. + * + * Move assign elements of array to values in @a v. + * + * @param __v Valarray to get values from. + */ + valarray<_Tp>& operator=(valarray<_Tp>&& __v) noexcept; +#endif + + /** + * @brief Assign elements to a value. + * + * Assign all elements of array to @a t. + * + * @param __t Value for elements. + */ + valarray<_Tp>& operator=(const _Tp& __t); + + /** + * @brief Assign elements to an array subset. + * + * Assign elements of array to values in @a sa. Results are undefined + * if @a sa does not have the same size as this array. + * + * @param __sa Array slice to get values from. + */ + valarray<_Tp>& operator=(const slice_array<_Tp>& __sa); + + /** + * @brief Assign elements to an array subset. + * + * Assign elements of array to values in @a ga. Results are undefined + * if @a ga does not have the same size as this array. + * + * @param __ga Array slice to get values from. + */ + valarray<_Tp>& operator=(const gslice_array<_Tp>& __ga); + + /** + * @brief Assign elements to an array subset. + * + * Assign elements of array to values in @a ma. Results are undefined + * if @a ma does not have the same size as this array. + * + * @param __ma Array slice to get values from. + */ + valarray<_Tp>& operator=(const mask_array<_Tp>& __ma); + + /** + * @brief Assign elements to an array subset. + * + * Assign elements of array to values in @a ia. Results are undefined + * if @a ia does not have the same size as this array. + * + * @param __ia Array slice to get values from. + */ + valarray<_Tp>& operator=(const indirect_array<_Tp>& __ia); + +#if __cplusplus >= 201103L + /** + * @brief Assign elements to an initializer_list. + * + * Assign elements of array to values in @a __l. Results are undefined + * if @a __l does not have the same size as this array. + * + * @param __l initializer_list to get values from. + */ + valarray& operator=(initializer_list<_Tp> __l); +#endif + + template valarray<_Tp>& + operator= (const _Expr<_Dom, _Tp>&); + + // _lib.valarray.access_ element access: + /** + * Return a reference to the i'th array element. + * + * @param __i Index of element to return. + * @return Reference to the i'th element. + */ + _Tp& operator[](size_t __i); + + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 389. Const overload of valarray::operator[] returns by value. + const _Tp& operator[](size_t) const; + + // _lib.valarray.sub_ subset operations: + /** + * @brief Return an array subset. + * + * Returns a new valarray containing the elements of the array + * indicated by the slice argument. The new valarray has the same size + * as the input slice. @see slice. + * + * @param __s The source slice. + * @return New valarray containing elements in @a __s. + */ + _Expr<_SClos<_ValArray, _Tp>, _Tp> operator[](slice __s) const; + + /** + * @brief Return a reference to an array subset. + * + * Returns a new valarray containing the elements of the array + * indicated by the slice argument. The new valarray has the same size + * as the input slice. @see slice. + * + * @param __s The source slice. + * @return New valarray containing elements in @a __s. + */ + slice_array<_Tp> operator[](slice __s); + + /** + * @brief Return an array subset. + * + * Returns a slice_array referencing the elements of the array + * indicated by the slice argument. @see gslice. + * + * @param __s The source slice. + * @return Slice_array referencing elements indicated by @a __s. + */ + _Expr<_GClos<_ValArray, _Tp>, _Tp> operator[](const gslice& __s) const; + + /** + * @brief Return a reference to an array subset. + * + * Returns a new valarray containing the elements of the array + * indicated by the gslice argument. The new valarray has + * the same size as the input gslice. @see gslice. + * + * @param __s The source gslice. + * @return New valarray containing elements in @a __s. + */ + gslice_array<_Tp> operator[](const gslice& __s); + + /** + * @brief Return an array subset. + * + * Returns a new valarray containing the elements of the array + * indicated by the argument. The input is a valarray of bool which + * represents a bitmask indicating which elements should be copied into + * the new valarray. Each element of the array is added to the return + * valarray if the corresponding element of the argument is true. + * + * @param __m The valarray bitmask. + * @return New valarray containing elements indicated by @a __m. + */ + valarray<_Tp> operator[](const valarray& __m) const; + + /** + * @brief Return a reference to an array subset. + * + * Returns a new mask_array referencing the elements of the array + * indicated by the argument. The input is a valarray of bool which + * represents a bitmask indicating which elements are part of the + * subset. Elements of the array are part of the subset if the + * corresponding element of the argument is true. + * + * @param __m The valarray bitmask. + * @return New valarray containing elements indicated by @a __m. + */ + mask_array<_Tp> operator[](const valarray& __m); + + /** + * @brief Return an array subset. + * + * Returns a new valarray containing the elements of the array + * indicated by the argument. The elements in the argument are + * interpreted as the indices of elements of this valarray to copy to + * the return valarray. + * + * @param __i The valarray element index list. + * @return New valarray containing elements in @a __s. + */ + _Expr<_IClos<_ValArray, _Tp>, _Tp> + operator[](const valarray& __i) const; + + /** + * @brief Return a reference to an array subset. + * + * Returns an indirect_array referencing the elements of the array + * indicated by the argument. The elements in the argument are + * interpreted as the indices of elements of this valarray to include + * in the subset. The returned indirect_array refers to these + * elements. + * + * @param __i The valarray element index list. + * @return Indirect_array referencing elements in @a __i. + */ + indirect_array<_Tp> operator[](const valarray& __i); + + // _lib.valarray.unary_ unary operators: + /// Return a new valarray by applying unary + to each element. + typename _UnaryOp<__unary_plus>::_Rt operator+() const; + + /// Return a new valarray by applying unary - to each element. + typename _UnaryOp<__negate>::_Rt operator-() const; + + /// Return a new valarray by applying unary ~ to each element. + typename _UnaryOp<__bitwise_not>::_Rt operator~() const; + + /// Return a new valarray by applying unary ! to each element. + typename _UnaryOp<__logical_not>::_Rt operator!() const; + + // _lib.valarray.cassign_ computed assignment: + /// Multiply each element of array by @a t. + valarray<_Tp>& operator*=(const _Tp&); + + /// Divide each element of array by @a t. + valarray<_Tp>& operator/=(const _Tp&); + + /// Set each element e of array to e % @a t. + valarray<_Tp>& operator%=(const _Tp&); + + /// Add @a t to each element of array. + valarray<_Tp>& operator+=(const _Tp&); + + /// Subtract @a t to each element of array. + valarray<_Tp>& operator-=(const _Tp&); + + /// Set each element e of array to e ^ @a t. + valarray<_Tp>& operator^=(const _Tp&); + + /// Set each element e of array to e & @a t. + valarray<_Tp>& operator&=(const _Tp&); + + /// Set each element e of array to e | @a t. + valarray<_Tp>& operator|=(const _Tp&); + + /// Left shift each element e of array by @a t bits. + valarray<_Tp>& operator<<=(const _Tp&); + + /// Right shift each element e of array by @a t bits. + valarray<_Tp>& operator>>=(const _Tp&); + + /// Multiply elements of array by corresponding elements of @a v. + valarray<_Tp>& operator*=(const valarray<_Tp>&); + + /// Divide elements of array by corresponding elements of @a v. + valarray<_Tp>& operator/=(const valarray<_Tp>&); + + /// Modulo elements of array by corresponding elements of @a v. + valarray<_Tp>& operator%=(const valarray<_Tp>&); + + /// Add corresponding elements of @a v to elements of array. + valarray<_Tp>& operator+=(const valarray<_Tp>&); + + /// Subtract corresponding elements of @a v from elements of array. + valarray<_Tp>& operator-=(const valarray<_Tp>&); + + /// Logical xor corresponding elements of @a v with elements of array. + valarray<_Tp>& operator^=(const valarray<_Tp>&); + + /// Logical or corresponding elements of @a v with elements of array. + valarray<_Tp>& operator|=(const valarray<_Tp>&); + + /// Logical and corresponding elements of @a v with elements of array. + valarray<_Tp>& operator&=(const valarray<_Tp>&); + + /// Left shift elements of array by corresponding elements of @a v. + valarray<_Tp>& operator<<=(const valarray<_Tp>&); + + /// Right shift elements of array by corresponding elements of @a v. + valarray<_Tp>& operator>>=(const valarray<_Tp>&); + + template + valarray<_Tp>& operator*=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator/=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator%=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator+=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator-=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator^=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator|=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator&=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator<<=(const _Expr<_Dom, _Tp>&); + template + valarray<_Tp>& operator>>=(const _Expr<_Dom, _Tp>&); + + // _lib.valarray.members_ member functions: +#if __cplusplus >= 201103L + /// Swap. + void swap(valarray<_Tp>& __v) noexcept; +#endif + + /// Return the number of elements in array. + size_t size() const; + + /** + * @brief Return the sum of all elements in the array. + * + * Accumulates the sum of all elements into a Tp using +=. The order + * of adding the elements is unspecified. + */ + _Tp sum() const; + + /// Return the minimum element using operator<(). + _Tp min() const; + + /// Return the maximum element using operator<(). + _Tp max() const; + + /** + * @brief Return a shifted array. + * + * A new valarray is constructed as a copy of this array with elements + * in shifted positions. For an element with index i, the new position + * is i - n. The new valarray has the same size as the current one. + * New elements without a value are set to 0. Elements whose new + * position is outside the bounds of the array are discarded. + * + * Positive arguments shift toward index 0, discarding elements [0, n). + * Negative arguments discard elements from the top of the array. + * + * @param __n Number of element positions to shift. + * @return New valarray with elements in shifted positions. + */ + valarray<_Tp> shift (int __n) const; + + /** + * @brief Return a rotated array. + * + * A new valarray is constructed as a copy of this array with elements + * in shifted positions. For an element with index i, the new position + * is (i - n) % size(). The new valarray has the same size as the + * current one. Elements that are shifted beyond the array bounds are + * shifted into the other end of the array. No elements are lost. + * + * Positive arguments shift toward index 0, wrapping around the top. + * Negative arguments shift towards the top, wrapping around to 0. + * + * @param __n Number of element positions to rotate. + * @return New valarray with elements in shifted positions. + */ + valarray<_Tp> cshift(int __n) const; + + /** + * @brief Apply a function to the array. + * + * Returns a new valarray with elements assigned to the result of + * applying func to the corresponding element of this array. The new + * array has the same size as this one. + * + * @param func Function of Tp returning Tp to apply. + * @return New valarray with transformed elements. + */ + _Expr<_ValFunClos<_ValArray, _Tp>, _Tp> apply(_Tp func(_Tp)) const; + + /** + * @brief Apply a function to the array. + * + * Returns a new valarray with elements assigned to the result of + * applying func to the corresponding element of this array. The new + * array has the same size as this one. + * + * @param func Function of const Tp& returning Tp to apply. + * @return New valarray with transformed elements. + */ + _Expr<_RefFunClos<_ValArray, _Tp>, _Tp> apply(_Tp func(const _Tp&)) const; + + /** + * @brief Resize array. + * + * Resize this array to @a size and set all elements to @a c. All + * references and iterators are invalidated. + * + * @param __size New array size. + * @param __c New value for all elements. + */ + void resize(size_t __size, _Tp __c = _Tp()); + + private: + size_t _M_size; + _Tp* __restrict__ _M_data; + + friend class _Array<_Tp>; + }; + +#if __cpp_deduction_guides >= 201606 + template + valarray(const _Tp(&)[_Nm], size_t) -> valarray<_Tp>; +#endif + + template + inline const _Tp& + valarray<_Tp>::operator[](size_t __i) const + { + __glibcxx_requires_subscript(__i); + return _M_data[__i]; + } + + template + inline _Tp& + valarray<_Tp>::operator[](size_t __i) + { + __glibcxx_requires_subscript(__i); + return _M_data[__i]; + } + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#include +#include +#include +#include +#include +#include + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * @addtogroup numeric_arrays + * @{ + */ + + template + inline + valarray<_Tp>::valarray() : _M_size(0), _M_data(0) {} + + template + inline + valarray<_Tp>::valarray(size_t __n) + : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n)) + { std::__valarray_default_construct(_M_data, _M_data + __n); } + + template + inline + valarray<_Tp>::valarray(const _Tp& __t, size_t __n) + : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n)) + { std::__valarray_fill_construct(_M_data, _M_data + __n, __t); } + + template + inline + valarray<_Tp>::valarray(const _Tp* __restrict__ __p, size_t __n) + : _M_size(__n), _M_data(__valarray_get_storage<_Tp>(__n)) + { + __glibcxx_assert(__p != 0 || __n == 0); + std::__valarray_copy_construct(__p, __p + __n, _M_data); + } + + template + inline + valarray<_Tp>::valarray(const valarray<_Tp>& __v) + : _M_size(__v._M_size), _M_data(__valarray_get_storage<_Tp>(__v._M_size)) + { std::__valarray_copy_construct(__v._M_data, __v._M_data + _M_size, + _M_data); } + +#if __cplusplus >= 201103L + template + inline + valarray<_Tp>::valarray(valarray<_Tp>&& __v) noexcept + : _M_size(__v._M_size), _M_data(__v._M_data) + { + __v._M_size = 0; + __v._M_data = 0; + } +#endif + + template + inline + valarray<_Tp>::valarray(const slice_array<_Tp>& __sa) + : _M_size(__sa._M_sz), _M_data(__valarray_get_storage<_Tp>(__sa._M_sz)) + { + std::__valarray_copy_construct + (__sa._M_array, __sa._M_sz, __sa._M_stride, _Array<_Tp>(_M_data)); + } + + template + inline + valarray<_Tp>::valarray(const gslice_array<_Tp>& __ga) + : _M_size(__ga._M_index.size()), + _M_data(__valarray_get_storage<_Tp>(_M_size)) + { + std::__valarray_copy_construct + (__ga._M_array, _Array(__ga._M_index), + _Array<_Tp>(_M_data), _M_size); + } + + template + inline + valarray<_Tp>::valarray(const mask_array<_Tp>& __ma) + : _M_size(__ma._M_sz), _M_data(__valarray_get_storage<_Tp>(__ma._M_sz)) + { + std::__valarray_copy_construct + (__ma._M_array, __ma._M_mask, _Array<_Tp>(_M_data), _M_size); + } + + template + inline + valarray<_Tp>::valarray(const indirect_array<_Tp>& __ia) + : _M_size(__ia._M_sz), _M_data(__valarray_get_storage<_Tp>(__ia._M_sz)) + { + std::__valarray_copy_construct + (__ia._M_array, __ia._M_index, _Array<_Tp>(_M_data), _M_size); + } + +#if __cplusplus >= 201103L + template + inline + valarray<_Tp>::valarray(initializer_list<_Tp> __l) + : _M_size(__l.size()), _M_data(__valarray_get_storage<_Tp>(__l.size())) + { std::__valarray_copy_construct(__l.begin(), __l.end(), _M_data); } +#endif + + template template + inline + valarray<_Tp>::valarray(const _Expr<_Dom, _Tp>& __e) + : _M_size(__e.size()), _M_data(__valarray_get_storage<_Tp>(_M_size)) + { std::__valarray_copy_construct(__e, _M_size, _Array<_Tp>(_M_data)); } + + template + inline + valarray<_Tp>::~valarray() _GLIBCXX_NOEXCEPT + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const valarray<_Tp>& __v) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 630. arrays of valarray. + if (_M_size == __v._M_size) + std::__valarray_copy(__v._M_data, _M_size, _M_data); + else + { + if (_M_data) + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + _M_size = __v._M_size; + _M_data = __valarray_get_storage<_Tp>(_M_size); + std::__valarray_copy_construct(__v._M_data, __v._M_data + _M_size, + _M_data); + } + return *this; + } + +#if __cplusplus >= 201103L + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(valarray<_Tp>&& __v) noexcept + { + if (_M_data) + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + _M_size = __v._M_size; + _M_data = __v._M_data; + __v._M_size = 0; + __v._M_data = 0; + return *this; + } + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(initializer_list<_Tp> __l) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 630. arrays of valarray. + if (_M_size == __l.size()) + std::__valarray_copy(__l.begin(), __l.size(), _M_data); + else + { + if (_M_data) + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + _M_size = __l.size(); + _M_data = __valarray_get_storage<_Tp>(_M_size); + std::__valarray_copy_construct(__l.begin(), __l.begin() + _M_size, + _M_data); + } + return *this; + } +#endif + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const _Tp& __t) + { + std::__valarray_fill(_M_data, _M_size, __t); + return *this; + } + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const slice_array<_Tp>& __sa) + { + __glibcxx_assert(_M_size == __sa._M_sz); + std::__valarray_copy(__sa._M_array, __sa._M_sz, + __sa._M_stride, _Array<_Tp>(_M_data)); + return *this; + } + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const gslice_array<_Tp>& __ga) + { + __glibcxx_assert(_M_size == __ga._M_index.size()); + std::__valarray_copy(__ga._M_array, _Array(__ga._M_index), + _Array<_Tp>(_M_data), _M_size); + return *this; + } + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const mask_array<_Tp>& __ma) + { + __glibcxx_assert(_M_size == __ma._M_sz); + std::__valarray_copy(__ma._M_array, __ma._M_mask, + _Array<_Tp>(_M_data), _M_size); + return *this; + } + + template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const indirect_array<_Tp>& __ia) + { + __glibcxx_assert(_M_size == __ia._M_sz); + std::__valarray_copy(__ia._M_array, __ia._M_index, + _Array<_Tp>(_M_data), _M_size); + return *this; + } + + template template + inline valarray<_Tp>& + valarray<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 630. arrays of valarray. + if (_M_size == __e.size()) + std::__valarray_copy(__e, _M_size, _Array<_Tp>(_M_data)); + else + { + if (_M_data) + { + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + std::__valarray_release_memory(_M_data); + } + _M_size = __e.size(); + _M_data = __valarray_get_storage<_Tp>(_M_size); + std::__valarray_copy_construct(__e, _M_size, _Array<_Tp>(_M_data)); + } + return *this; + } + + template + inline _Expr<_SClos<_ValArray,_Tp>, _Tp> + valarray<_Tp>::operator[](slice __s) const + { + typedef _SClos<_ValArray,_Tp> _Closure; + return _Expr<_Closure, _Tp>(_Closure (_Array<_Tp>(_M_data), __s)); + } + + template + inline slice_array<_Tp> + valarray<_Tp>::operator[](slice __s) + { return slice_array<_Tp>(_Array<_Tp>(_M_data), __s); } + + template + inline _Expr<_GClos<_ValArray,_Tp>, _Tp> + valarray<_Tp>::operator[](const gslice& __gs) const + { + typedef _GClos<_ValArray,_Tp> _Closure; + return _Expr<_Closure, _Tp> + (_Closure(_Array<_Tp>(_M_data), __gs._M_index->_M_index)); + } + + template + inline gslice_array<_Tp> + valarray<_Tp>::operator[](const gslice& __gs) + { + return gslice_array<_Tp> + (_Array<_Tp>(_M_data), __gs._M_index->_M_index); + } + + template + inline valarray<_Tp> + valarray<_Tp>::operator[](const valarray& __m) const + { + size_t __s = 0; + size_t __e = __m.size(); + for (size_t __i=0; __i<__e; ++__i) + if (__m[__i]) ++__s; + return valarray<_Tp>(mask_array<_Tp>(_Array<_Tp>(_M_data), __s, + _Array (__m))); + } + + template + inline mask_array<_Tp> + valarray<_Tp>::operator[](const valarray& __m) + { + size_t __s = 0; + size_t __e = __m.size(); + for (size_t __i=0; __i<__e; ++__i) + if (__m[__i]) ++__s; + return mask_array<_Tp>(_Array<_Tp>(_M_data), __s, _Array(__m)); + } + + template + inline _Expr<_IClos<_ValArray,_Tp>, _Tp> + valarray<_Tp>::operator[](const valarray& __i) const + { + typedef _IClos<_ValArray,_Tp> _Closure; + return _Expr<_Closure, _Tp>(_Closure(*this, __i)); + } + + template + inline indirect_array<_Tp> + valarray<_Tp>::operator[](const valarray& __i) + { + return indirect_array<_Tp>(_Array<_Tp>(_M_data), __i.size(), + _Array(__i)); + } + +#if __cplusplus >= 201103L + template + inline void + valarray<_Tp>::swap(valarray<_Tp>& __v) noexcept + { + std::swap(_M_size, __v._M_size); + std::swap(_M_data, __v._M_data); + } +#endif + + template + inline size_t + valarray<_Tp>::size() const + { return _M_size; } + + template + inline _Tp + valarray<_Tp>::sum() const + { + __glibcxx_assert(_M_size > 0); + return std::__valarray_sum(_M_data, _M_data + _M_size); + } + + template + inline valarray<_Tp> + valarray<_Tp>::shift(int __n) const + { + valarray<_Tp> __ret; + + if (_M_size == 0) + return __ret; + + _Tp* __restrict__ __tmp_M_data = + std::__valarray_get_storage<_Tp>(_M_size); + + if (__n == 0) + std::__valarray_copy_construct(_M_data, + _M_data + _M_size, __tmp_M_data); + else if (__n > 0) // shift left + { + if (size_t(__n) > _M_size) + __n = int(_M_size); + + std::__valarray_copy_construct(_M_data + __n, + _M_data + _M_size, __tmp_M_data); + std::__valarray_default_construct(__tmp_M_data + _M_size - __n, + __tmp_M_data + _M_size); + } + else // shift right + { + if (-size_t(__n) > _M_size) + __n = -int(_M_size); + + std::__valarray_copy_construct(_M_data, _M_data + _M_size + __n, + __tmp_M_data - __n); + std::__valarray_default_construct(__tmp_M_data, + __tmp_M_data - __n); + } + + __ret._M_size = _M_size; + __ret._M_data = __tmp_M_data; + return __ret; + } + + template + inline valarray<_Tp> + valarray<_Tp>::cshift(int __n) const + { + valarray<_Tp> __ret; + + if (_M_size == 0) + return __ret; + + _Tp* __restrict__ __tmp_M_data = + std::__valarray_get_storage<_Tp>(_M_size); + + if (__n == 0) + std::__valarray_copy_construct(_M_data, + _M_data + _M_size, __tmp_M_data); + else if (__n > 0) // cshift left + { + if (size_t(__n) > _M_size) + __n = int(__n % _M_size); + + std::__valarray_copy_construct(_M_data, _M_data + __n, + __tmp_M_data + _M_size - __n); + std::__valarray_copy_construct(_M_data + __n, _M_data + _M_size, + __tmp_M_data); + } + else // cshift right + { + if (-size_t(__n) > _M_size) + __n = -int(-size_t(__n) % _M_size); + + std::__valarray_copy_construct(_M_data + _M_size + __n, + _M_data + _M_size, __tmp_M_data); + std::__valarray_copy_construct(_M_data, _M_data + _M_size + __n, + __tmp_M_data - __n); + } + + __ret._M_size = _M_size; + __ret._M_data = __tmp_M_data; + return __ret; + } + + template + inline void + valarray<_Tp>::resize(size_t __n, _Tp __c) + { + // This complication is so to make valarray > work + // even though it is not required by the standard. Nobody should + // be saying valarray > anyway. See the specs. + std::__valarray_destroy_elements(_M_data, _M_data + _M_size); + if (_M_size != __n) + { + std::__valarray_release_memory(_M_data); + _M_size = __n; + _M_data = __valarray_get_storage<_Tp>(__n); + } + std::__valarray_fill_construct(_M_data, _M_data + __n, __c); + } + + template + inline _Tp + valarray<_Tp>::min() const + { + __glibcxx_assert(_M_size > 0); + return *std::min_element(_M_data, _M_data + _M_size); + } + + template + inline _Tp + valarray<_Tp>::max() const + { + __glibcxx_assert(_M_size > 0); + return *std::max_element(_M_data, _M_data + _M_size); + } + + template + inline _Expr<_ValFunClos<_ValArray, _Tp>, _Tp> + valarray<_Tp>::apply(_Tp func(_Tp)) const + { + typedef _ValFunClos<_ValArray, _Tp> _Closure; + return _Expr<_Closure, _Tp>(_Closure(*this, func)); + } + + template + inline _Expr<_RefFunClos<_ValArray, _Tp>, _Tp> + valarray<_Tp>::apply(_Tp func(const _Tp &)) const + { + typedef _RefFunClos<_ValArray, _Tp> _Closure; + return _Expr<_Closure, _Tp>(_Closure(*this, func)); + } + +#define _DEFINE_VALARRAY_UNARY_OPERATOR(_Op, _Name) \ + template \ + inline typename valarray<_Tp>::template _UnaryOp<_Name>::_Rt \ + valarray<_Tp>::operator _Op() const \ + { \ + typedef _UnClos<_Name, _ValArray, _Tp> _Closure; \ + typedef typename __fun<_Name, _Tp>::result_type _Rt; \ + return _Expr<_Closure, _Rt>(_Closure(*this)); \ + } + + _DEFINE_VALARRAY_UNARY_OPERATOR(+, __unary_plus) + _DEFINE_VALARRAY_UNARY_OPERATOR(-, __negate) + _DEFINE_VALARRAY_UNARY_OPERATOR(~, __bitwise_not) + _DEFINE_VALARRAY_UNARY_OPERATOR (!, __logical_not) + +#undef _DEFINE_VALARRAY_UNARY_OPERATOR + +#define _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(_Op, _Name) \ + template \ + inline valarray<_Tp>& \ + valarray<_Tp>::operator _Op##=(const _Tp &__t) \ + { \ + _Array_augmented_##_Name(_Array<_Tp>(_M_data), _M_size, __t); \ + return *this; \ + } \ + \ + template \ + inline valarray<_Tp>& \ + valarray<_Tp>::operator _Op##=(const valarray<_Tp> &__v) \ + { \ + __glibcxx_assert(_M_size == __v._M_size); \ + _Array_augmented_##_Name(_Array<_Tp>(_M_data), _M_size, \ + _Array<_Tp>(__v._M_data)); \ + return *this; \ + } + +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(+, __plus) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(-, __minus) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(*, __multiplies) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(/, __divides) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(%, __modulus) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(^, __bitwise_xor) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(&, __bitwise_and) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(|, __bitwise_or) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(<<, __shift_left) +_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(>>, __shift_right) + +#undef _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT + +#define _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(_Op, _Name) \ + template template \ + inline valarray<_Tp>& \ + valarray<_Tp>::operator _Op##=(const _Expr<_Dom, _Tp>& __e) \ + { \ + _Array_augmented_##_Name(_Array<_Tp>(_M_data), __e, _M_size); \ + return *this; \ + } + +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(+, __plus) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(-, __minus) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(*, __multiplies) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(/, __divides) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(%, __modulus) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(^, __bitwise_xor) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(&, __bitwise_and) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(|, __bitwise_or) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(<<, __shift_left) +_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(>>, __shift_right) + +#undef _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT + + +#define _DEFINE_BINARY_OPERATOR(_Op, _Name) \ + template \ + inline _Expr<_BinClos<_Name, _ValArray, _ValArray, _Tp, _Tp>, \ + typename __fun<_Name, _Tp>::result_type> \ + operator _Op(const valarray<_Tp>& __v, const valarray<_Tp>& __w) \ + { \ + __glibcxx_assert(__v.size() == __w.size()); \ + typedef _BinClos<_Name, _ValArray, _ValArray, _Tp, _Tp> _Closure; \ + typedef typename __fun<_Name, _Tp>::result_type _Rt; \ + return _Expr<_Closure, _Rt>(_Closure(__v, __w)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_Name, _ValArray,_Constant, _Tp, _Tp>, \ + typename __fun<_Name, _Tp>::result_type> \ + operator _Op(const valarray<_Tp>& __v, \ + const typename valarray<_Tp>::value_type& __t) \ + { \ + typedef _BinClos<_Name, _ValArray, _Constant, _Tp, _Tp> _Closure; \ + typedef typename __fun<_Name, _Tp>::result_type _Rt; \ + return _Expr<_Closure, _Rt>(_Closure(__v, __t)); \ + } \ + \ + template \ + inline _Expr<_BinClos<_Name, _Constant, _ValArray, _Tp, _Tp>, \ + typename __fun<_Name, _Tp>::result_type> \ + operator _Op(const typename valarray<_Tp>::value_type& __t, \ + const valarray<_Tp>& __v) \ + { \ + typedef _BinClos<_Name, _Constant, _ValArray, _Tp, _Tp> _Closure; \ + typedef typename __fun<_Name, _Tp>::result_type _Rt; \ + return _Expr<_Closure, _Rt>(_Closure(__t, __v)); \ + } + +_DEFINE_BINARY_OPERATOR(+, __plus) +_DEFINE_BINARY_OPERATOR(-, __minus) +_DEFINE_BINARY_OPERATOR(*, __multiplies) +_DEFINE_BINARY_OPERATOR(/, __divides) +_DEFINE_BINARY_OPERATOR(%, __modulus) +_DEFINE_BINARY_OPERATOR(^, __bitwise_xor) +_DEFINE_BINARY_OPERATOR(&, __bitwise_and) +_DEFINE_BINARY_OPERATOR(|, __bitwise_or) +_DEFINE_BINARY_OPERATOR(<<, __shift_left) +_DEFINE_BINARY_OPERATOR(>>, __shift_right) +_DEFINE_BINARY_OPERATOR(&&, __logical_and) +_DEFINE_BINARY_OPERATOR(||, __logical_or) +_DEFINE_BINARY_OPERATOR(==, __equal_to) +_DEFINE_BINARY_OPERATOR(!=, __not_equal_to) +_DEFINE_BINARY_OPERATOR(<, __less) +_DEFINE_BINARY_OPERATOR(>, __greater) +_DEFINE_BINARY_OPERATOR(<=, __less_equal) +_DEFINE_BINARY_OPERATOR(>=, __greater_equal) + +#undef _DEFINE_BINARY_OPERATOR + +#if __cplusplus >= 201103L + /** + * @brief Return an iterator pointing to the first element of + * the valarray. + * @param __va valarray. + */ + template + inline _Tp* + begin(valarray<_Tp>& __va) + { return std::__addressof(__va[0]); } + + /** + * @brief Return an iterator pointing to the first element of + * the const valarray. + * @param __va valarray. + */ + template + inline const _Tp* + begin(const valarray<_Tp>& __va) + { return std::__addressof(__va[0]); } + + /** + * @brief Return an iterator pointing to one past the last element of + * the valarray. + * @param __va valarray. + */ + template + inline _Tp* + end(valarray<_Tp>& __va) + { return std::__addressof(__va[0]) + __va.size(); } + + /** + * @brief Return an iterator pointing to one past the last element of + * the const valarray. + * @param __va valarray. + */ + template + inline const _Tp* + end(const valarray<_Tp>& __va) + { return std::__addressof(__va[0]) + __va.size(); } +#endif // C++11 + + // @} group numeric_arrays + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif /* _GLIBCXX_VALARRAY */ diff --git a/resources/sources/avr-libstdcpp/include/variant b/resources/sources/avr-libstdcpp/include/variant new file mode 100644 index 000000000..3a0d1c1ce --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/variant @@ -0,0 +1,1775 @@ +// -*- C++ -*- + +// Copyright (C) 2016-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file variant + * This is the C++ Library header. + */ + +#ifndef _GLIBCXX_VARIANT +#define _GLIBCXX_VARIANT 1 + +#pragma GCC system_header + +#if __cplusplus >= 201703L + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#if __cplusplus > 201703L +# include +#endif + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +namespace __detail +{ +namespace __variant +{ + template + struct _Nth_type; + + template + struct _Nth_type<_Np, _First, _Rest...> + : _Nth_type<_Np-1, _Rest...> { }; + + template + struct _Nth_type<0, _First, _Rest...> + { using type = _First; }; + +} // namespace __variant +} // namespace __detail + +#define __cpp_lib_variant 201606L + + template class tuple; + template class variant; + template struct hash; + + template + struct variant_size; + + template + struct variant_size : variant_size<_Variant> {}; + + template + struct variant_size : variant_size<_Variant> {}; + + template + struct variant_size : variant_size<_Variant> {}; + + template + struct variant_size> + : std::integral_constant {}; + + template + inline constexpr size_t variant_size_v = variant_size<_Variant>::value; + + template + struct variant_alternative; + + template + struct variant_alternative<_Np, variant<_First, _Rest...>> + : variant_alternative<_Np-1, variant<_Rest...>> {}; + + template + struct variant_alternative<0, variant<_First, _Rest...>> + { using type = _First; }; + + template + using variant_alternative_t = + typename variant_alternative<_Np, _Variant>::type; + + template + struct variant_alternative<_Np, const _Variant> + { using type = add_const_t>; }; + + template + struct variant_alternative<_Np, volatile _Variant> + { using type = add_volatile_t>; }; + + template + struct variant_alternative<_Np, const volatile _Variant> + { using type = add_cv_t>; }; + + inline constexpr size_t variant_npos = -1; + + template + constexpr variant_alternative_t<_Np, variant<_Types...>>& + get(variant<_Types...>&); + + template + constexpr variant_alternative_t<_Np, variant<_Types...>>&& + get(variant<_Types...>&&); + + template + constexpr variant_alternative_t<_Np, variant<_Types...>> const& + get(const variant<_Types...>&); + + template + constexpr variant_alternative_t<_Np, variant<_Types...>> const&& + get(const variant<_Types...>&&); + + template + constexpr decltype(auto) + __do_visit(_Visitor&& __visitor, _Variants&&... __variants); + + template + decltype(auto) + __variant_cast(_Tp&& __rhs) + { + if constexpr (is_lvalue_reference_v<_Tp>) + { + if constexpr (is_const_v>) + return static_cast&>(__rhs); + else + return static_cast&>(__rhs); + } + else + return static_cast&&>(__rhs); + } + +namespace __detail +{ +namespace __variant +{ + // Returns the first appearence of _Tp in _Types. + // Returns sizeof...(_Types) if _Tp is not in _Types. + template + struct __index_of : std::integral_constant {}; + + template + inline constexpr size_t __index_of_v = __index_of<_Tp, _Types...>::value; + + template + struct __index_of<_Tp, _First, _Rest...> : + std::integral_constant + ? 0 : __index_of_v<_Tp, _Rest...> + 1> {}; + + // used for raw visitation + struct __variant_cookie {}; + // used for raw visitation with indices passed in + struct __variant_idx_cookie { using type = __variant_idx_cookie; }; + // Used to enable deduction (and same-type checking) for std::visit: + template struct __deduce_visit_result { }; + + // Visit variants that might be valueless. + template + constexpr void + __raw_visit(_Visitor&& __visitor, _Variants&&... __variants) + { + std::__do_visit<__variant_cookie>(std::forward<_Visitor>(__visitor), + std::forward<_Variants>(__variants)...); + } + + // Visit variants that might be valueless, passing indices to the visitor. + template + constexpr void + __raw_idx_visit(_Visitor&& __visitor, _Variants&&... __variants) + { + std::__do_visit<__variant_idx_cookie>(std::forward<_Visitor>(__visitor), + std::forward<_Variants>(__variants)...); + } + + // _Uninitialized is guaranteed to be a trivially destructible type, + // even if T is not. + template> + struct _Uninitialized; + + template + struct _Uninitialized<_Type, true> + { + template + constexpr + _Uninitialized(in_place_index_t<0>, _Args&&... __args) + : _M_storage(std::forward<_Args>(__args)...) + { } + + constexpr const _Type& _M_get() const & noexcept + { return _M_storage; } + + constexpr _Type& _M_get() & noexcept + { return _M_storage; } + + constexpr const _Type&& _M_get() const && noexcept + { return std::move(_M_storage); } + + constexpr _Type&& _M_get() && noexcept + { return std::move(_M_storage); } + + _Type _M_storage; + }; + + template + struct _Uninitialized<_Type, false> + { + template + constexpr + _Uninitialized(in_place_index_t<0>, _Args&&... __args) + { + ::new ((void*)std::addressof(_M_storage)) + _Type(std::forward<_Args>(__args)...); + } + + const _Type& _M_get() const & noexcept + { return *_M_storage._M_ptr(); } + + _Type& _M_get() & noexcept + { return *_M_storage._M_ptr(); } + + const _Type&& _M_get() const && noexcept + { return std::move(*_M_storage._M_ptr()); } + + _Type&& _M_get() && noexcept + { return std::move(*_M_storage._M_ptr()); } + + __gnu_cxx::__aligned_membuf<_Type> _M_storage; + }; + + template + constexpr decltype(auto) + __get(in_place_index_t<0>, _Union&& __u) noexcept + { return std::forward<_Union>(__u)._M_first._M_get(); } + + template + constexpr decltype(auto) + __get(in_place_index_t<_Np>, _Union&& __u) noexcept + { + return __variant::__get(in_place_index<_Np-1>, + std::forward<_Union>(__u)._M_rest); + } + + // Returns the typed storage for __v. + template + constexpr decltype(auto) + __get(_Variant&& __v) noexcept + { + return __variant::__get(std::in_place_index<_Np>, + std::forward<_Variant>(__v)._M_u); + } + + template + struct _Traits + { + static constexpr bool _S_default_ctor = + is_default_constructible_v::type>; + static constexpr bool _S_copy_ctor = + (is_copy_constructible_v<_Types> && ...); + static constexpr bool _S_move_ctor = + (is_move_constructible_v<_Types> && ...); + static constexpr bool _S_copy_assign = + _S_copy_ctor + && (is_copy_assignable_v<_Types> && ...); + static constexpr bool _S_move_assign = + _S_move_ctor + && (is_move_assignable_v<_Types> && ...); + + static constexpr bool _S_trivial_dtor = + (is_trivially_destructible_v<_Types> && ...); + static constexpr bool _S_trivial_copy_ctor = + (is_trivially_copy_constructible_v<_Types> && ...); + static constexpr bool _S_trivial_move_ctor = + (is_trivially_move_constructible_v<_Types> && ...); + static constexpr bool _S_trivial_copy_assign = + _S_trivial_dtor && _S_trivial_copy_ctor + && (is_trivially_copy_assignable_v<_Types> && ...); + static constexpr bool _S_trivial_move_assign = + _S_trivial_dtor && _S_trivial_move_ctor + && (is_trivially_move_assignable_v<_Types> && ...); + + // The following nothrow traits are for non-trivial SMFs. Trivial SMFs + // are always nothrow. + static constexpr bool _S_nothrow_default_ctor = + is_nothrow_default_constructible_v< + typename _Nth_type<0, _Types...>::type>; + static constexpr bool _S_nothrow_copy_ctor = false; + static constexpr bool _S_nothrow_move_ctor = + (is_nothrow_move_constructible_v<_Types> && ...); + static constexpr bool _S_nothrow_copy_assign = false; + static constexpr bool _S_nothrow_move_assign = + _S_nothrow_move_ctor + && (is_nothrow_move_assignable_v<_Types> && ...); + }; + + // Defines members and ctors. + template + union _Variadic_union { }; + + template + union _Variadic_union<_First, _Rest...> + { + constexpr _Variadic_union() : _M_rest() { } + + template + constexpr _Variadic_union(in_place_index_t<0>, _Args&&... __args) + : _M_first(in_place_index<0>, std::forward<_Args>(__args)...) + { } + + template + constexpr _Variadic_union(in_place_index_t<_Np>, _Args&&... __args) + : _M_rest(in_place_index<_Np-1>, std::forward<_Args>(__args)...) + { } + + _Uninitialized<_First> _M_first; + _Variadic_union<_Rest...> _M_rest; + }; + + // _Never_valueless_alt is true for variant alternatives that can + // always be placed in a variant without it becoming valueless. + + // For suitably-small, trivially copyable types we can create temporaries + // on the stack and then memcpy them into place. + template + struct _Never_valueless_alt + : __and_, is_trivially_copyable<_Tp>> + { }; + + // Specialize _Never_valueless_alt for other types which have a + // non-throwing and cheap move construction and move assignment operator, + // so that emplacing the type will provide the strong exception-safety + // guarantee, by creating and moving a temporary. + // Whether _Never_valueless_alt is true or not affects the ABI of a + // variant using that alternative, so we can't change the value later! + + // True if every alternative in _Types... can be emplaced in a variant + // without it becoming valueless. If this is true, variant<_Types...> + // can never be valueless, which enables some minor optimizations. + template + constexpr bool __never_valueless() + { + return _Traits<_Types...>::_S_move_assign + && (_Never_valueless_alt<_Types>::value && ...); + } + + // Defines index and the dtor, possibly trivial. + template + struct _Variant_storage; + + template + using __select_index = + typename __select_int::_Select_int_base::type::value_type; + + template + struct _Variant_storage + { + constexpr + _Variant_storage() + : _M_index(static_cast<__index_type>(variant_npos)) + { } + + template + constexpr + _Variant_storage(in_place_index_t<_Np>, _Args&&... __args) + : _M_u(in_place_index<_Np>, std::forward<_Args>(__args)...), + _M_index{_Np} + { } + + void _M_reset() + { + if (!_M_valid()) [[unlikely]] + return; + + std::__do_visit([](auto&& __this_mem) mutable + { + std::_Destroy(std::__addressof(__this_mem)); + }, __variant_cast<_Types...>(*this)); + + _M_index = static_cast<__index_type>(variant_npos); + } + + ~_Variant_storage() + { _M_reset(); } + + void* + _M_storage() const noexcept + { + return const_cast(static_cast( + std::addressof(_M_u))); + } + + constexpr bool + _M_valid() const noexcept + { + if constexpr (__variant::__never_valueless<_Types...>()) + return true; + return this->_M_index != __index_type(variant_npos); + } + + _Variadic_union<_Types...> _M_u; + using __index_type = __select_index<_Types...>; + __index_type _M_index; + }; + + template + struct _Variant_storage + { + constexpr + _Variant_storage() + : _M_index(static_cast<__index_type>(variant_npos)) + { } + + template + constexpr + _Variant_storage(in_place_index_t<_Np>, _Args&&... __args) + : _M_u(in_place_index<_Np>, std::forward<_Args>(__args)...), + _M_index{_Np} + { } + + void _M_reset() noexcept + { _M_index = static_cast<__index_type>(variant_npos); } + + void* + _M_storage() const noexcept + { + return const_cast(static_cast( + std::addressof(_M_u))); + } + + constexpr bool + _M_valid() const noexcept + { + if constexpr (__variant::__never_valueless<_Types...>()) + return true; + return this->_M_index != static_cast<__index_type>(variant_npos); + } + + _Variadic_union<_Types...> _M_u; + using __index_type = __select_index<_Types...>; + __index_type _M_index; + }; + + template + using _Variant_storage_alias = + _Variant_storage<_Traits<_Types...>::_S_trivial_dtor, _Types...>; + + template + void __variant_construct_single(_Tp&& __lhs, _Up&& __rhs_mem) + { + void* __storage = std::addressof(__lhs._M_u); + using _Type = remove_reference_t; + if constexpr (!is_same_v<_Type, __variant_cookie>) + ::new (__storage) + _Type(std::forward(__rhs_mem)); + } + + template + void __variant_construct(_Tp&& __lhs, _Up&& __rhs) + { + __lhs._M_index = __rhs._M_index; + __variant::__raw_visit([&__lhs](auto&& __rhs_mem) mutable + { + __variant_construct_single(std::forward<_Tp>(__lhs), + std::forward(__rhs_mem)); + }, __variant_cast<_Types...>(std::forward<_Up>(__rhs))); + } + + // The following are (Copy|Move) (ctor|assign) layers for forwarding + // triviality and handling non-trivial SMF behaviors. + + template + struct _Copy_ctor_base : _Variant_storage_alias<_Types...> + { + using _Base = _Variant_storage_alias<_Types...>; + using _Base::_Base; + + _Copy_ctor_base(const _Copy_ctor_base& __rhs) + noexcept(_Traits<_Types...>::_S_nothrow_copy_ctor) + { + __variant_construct<_Types...>(*this, __rhs); + } + + _Copy_ctor_base(_Copy_ctor_base&&) = default; + _Copy_ctor_base& operator=(const _Copy_ctor_base&) = default; + _Copy_ctor_base& operator=(_Copy_ctor_base&&) = default; + }; + + template + struct _Copy_ctor_base : _Variant_storage_alias<_Types...> + { + using _Base = _Variant_storage_alias<_Types...>; + using _Base::_Base; + }; + + template + using _Copy_ctor_alias = + _Copy_ctor_base<_Traits<_Types...>::_S_trivial_copy_ctor, _Types...>; + + template + struct _Move_ctor_base : _Copy_ctor_alias<_Types...> + { + using _Base = _Copy_ctor_alias<_Types...>; + using _Base::_Base; + + _Move_ctor_base(_Move_ctor_base&& __rhs) + noexcept(_Traits<_Types...>::_S_nothrow_move_ctor) + { + __variant_construct<_Types...>(*this, std::move(__rhs)); + } + + template + void _M_destructive_move(unsigned short __rhs_index, _Up&& __rhs) + { + this->_M_reset(); + __variant_construct_single(*this, std::forward<_Up>(__rhs)); + this->_M_index = __rhs_index; + } + + template + void _M_destructive_copy(unsigned short __rhs_index, const _Up& __rhs) + { + this->_M_reset(); + __variant_construct_single(*this, __rhs); + this->_M_index = __rhs_index; + } + + _Move_ctor_base(const _Move_ctor_base&) = default; + _Move_ctor_base& operator=(const _Move_ctor_base&) = default; + _Move_ctor_base& operator=(_Move_ctor_base&&) = default; + }; + + template + struct _Move_ctor_base : _Copy_ctor_alias<_Types...> + { + using _Base = _Copy_ctor_alias<_Types...>; + using _Base::_Base; + + template + void _M_destructive_move(unsigned short __rhs_index, _Up&& __rhs) + { + this->_M_reset(); + __variant_construct_single(*this, std::forward<_Up>(__rhs)); + this->_M_index = __rhs_index; + } + + template + void _M_destructive_copy(unsigned short __rhs_index, const _Up& __rhs) + { + this->_M_reset(); + __variant_construct_single(*this, __rhs); + this->_M_index = __rhs_index; + } + }; + + template + using _Move_ctor_alias = + _Move_ctor_base<_Traits<_Types...>::_S_trivial_move_ctor, _Types...>; + + template + struct _Copy_assign_base : _Move_ctor_alias<_Types...> + { + using _Base = _Move_ctor_alias<_Types...>; + using _Base::_Base; + + _Copy_assign_base& + operator=(const _Copy_assign_base& __rhs) + noexcept(_Traits<_Types...>::_S_nothrow_copy_assign) + { + __variant::__raw_idx_visit( + [this](auto&& __rhs_mem, auto __rhs_index) mutable + { + if constexpr (__rhs_index != variant_npos) + { + if (this->_M_index == __rhs_index) + __variant::__get<__rhs_index>(*this) = __rhs_mem; + else + { + using __rhs_type = __remove_cvref_t; + if constexpr (is_nothrow_copy_constructible_v<__rhs_type> + || !is_nothrow_move_constructible_v<__rhs_type>) + // The standard says this->emplace<__rhs_type>(__rhs_mem) + // should be used here, but _M_destructive_copy is + // equivalent in this case. Either copy construction + // doesn't throw, so _M_destructive_copy gives strong + // exception safety guarantee, or both copy construction + // and move construction can throw, so emplace only gives + // basic exception safety anyway. + this->_M_destructive_copy(__rhs_index, __rhs_mem); + else + __variant_cast<_Types...>(*this) + = variant<_Types...>(std::in_place_index<__rhs_index>, + __rhs_mem); + } + } + else + this->_M_reset(); + }, __variant_cast<_Types...>(__rhs)); + return *this; + } + + _Copy_assign_base(const _Copy_assign_base&) = default; + _Copy_assign_base(_Copy_assign_base&&) = default; + _Copy_assign_base& operator=(_Copy_assign_base&&) = default; + }; + + template + struct _Copy_assign_base : _Move_ctor_alias<_Types...> + { + using _Base = _Move_ctor_alias<_Types...>; + using _Base::_Base; + }; + + template + using _Copy_assign_alias = + _Copy_assign_base<_Traits<_Types...>::_S_trivial_copy_assign, _Types...>; + + template + struct _Move_assign_base : _Copy_assign_alias<_Types...> + { + using _Base = _Copy_assign_alias<_Types...>; + using _Base::_Base; + + _Move_assign_base& + operator=(_Move_assign_base&& __rhs) + noexcept(_Traits<_Types...>::_S_nothrow_move_assign) + { + __variant::__raw_idx_visit( + [this](auto&& __rhs_mem, auto __rhs_index) mutable + { + if constexpr (__rhs_index != variant_npos) + { + if (this->_M_index == __rhs_index) + __variant::__get<__rhs_index>(*this) = std::move(__rhs_mem); + else + __variant_cast<_Types...>(*this) + .template emplace<__rhs_index>(std::move(__rhs_mem)); + } + else + this->_M_reset(); + }, __variant_cast<_Types...>(__rhs)); + return *this; + } + + _Move_assign_base(const _Move_assign_base&) = default; + _Move_assign_base(_Move_assign_base&&) = default; + _Move_assign_base& operator=(const _Move_assign_base&) = default; + }; + + template + struct _Move_assign_base : _Copy_assign_alias<_Types...> + { + using _Base = _Copy_assign_alias<_Types...>; + using _Base::_Base; + }; + + template + using _Move_assign_alias = + _Move_assign_base<_Traits<_Types...>::_S_trivial_move_assign, _Types...>; + + template + struct _Variant_base : _Move_assign_alias<_Types...> + { + using _Base = _Move_assign_alias<_Types...>; + + constexpr + _Variant_base() + noexcept(_Traits<_Types...>::_S_nothrow_default_ctor) + : _Variant_base(in_place_index<0>) { } + + template + constexpr explicit + _Variant_base(in_place_index_t<_Np> __i, _Args&&... __args) + : _Base(__i, std::forward<_Args>(__args)...) + { } + + _Variant_base(const _Variant_base&) = default; + _Variant_base(_Variant_base&&) = default; + _Variant_base& operator=(const _Variant_base&) = default; + _Variant_base& operator=(_Variant_base&&) = default; + }; + + // For how many times does _Tp appear in _Tuple? + template + struct __tuple_count; + + template + inline constexpr size_t __tuple_count_v = + __tuple_count<_Tp, _Tuple>::value; + + template + struct __tuple_count<_Tp, tuple<_Types...>> + : integral_constant { }; + + template + struct __tuple_count<_Tp, tuple<_First, _Rest...>> + : integral_constant< + size_t, + __tuple_count_v<_Tp, tuple<_Rest...>> + is_same_v<_Tp, _First>> { }; + + // TODO: Reuse this in ? + template + inline constexpr bool __exactly_once = + __tuple_count_v<_Tp, tuple<_Types...>> == 1; + + // Helper used to check for valid conversions that don't involve narrowing. + template struct _Arr { _Ti _M_x[1]; }; + + // Build an imaginary function FUN(Ti) for each alternative type Ti + template, bool>, + typename = void> + struct _Build_FUN + { + // This function means 'using _Build_FUN::_S_fun;' is valid, + // but only static functions will be considered in the call below. + void _S_fun(); + }; + + // ... for which Ti x[] = {std::forward(t)}; is well-formed, + template + struct _Build_FUN<_Ind, _Tp, _Ti, false, + void_t{{std::declval<_Tp>()}})>> + { + // This is the FUN function for type _Ti, with index _Ind + static integral_constant _S_fun(_Ti); + }; + + // ... and if Ti is cv bool, remove_cvref_t is bool. + template + struct _Build_FUN<_Ind, _Tp, _Ti, true, + enable_if_t, bool>>> + { + // This is the FUN function for when _Ti is cv bool, with index _Ind + static integral_constant _S_fun(_Ti); + }; + + template>> + struct _Build_FUNs; + + template + struct _Build_FUNs<_Tp, variant<_Ti...>, index_sequence<_Ind...>> + : _Build_FUN<_Ind, _Tp, _Ti>... + { + using _Build_FUN<_Ind, _Tp, _Ti>::_S_fun...; + }; + + // The index j of the overload FUN(Tj) selected by overload resolution + // for FUN(std::forward<_Tp>(t)) + template + using _FUN_type + = decltype(_Build_FUNs<_Tp, _Variant>::_S_fun(std::declval<_Tp>())); + + // The index selected for FUN(std::forward(t)), or variant_npos if none. + template + struct __accepted_index + : integral_constant + { }; + + template + struct __accepted_index<_Tp, _Variant, void_t<_FUN_type<_Tp, _Variant>>> + : _FUN_type<_Tp, _Variant> + { }; + + // Returns the raw storage for __v. + template + void* __get_storage(_Variant&& __v) noexcept + { return __v._M_storage(); } + + template + struct _Extra_visit_slot_needed + { + template struct _Variant_never_valueless; + + template + struct _Variant_never_valueless> + : bool_constant<__variant::__never_valueless<_Types...>()> {}; + + static constexpr bool value = + (is_same_v<_Maybe_variant_cookie, __variant_cookie> + || is_same_v<_Maybe_variant_cookie, __variant_idx_cookie>) + && !_Variant_never_valueless<__remove_cvref_t<_Variant>>::value; + }; + + // Used for storing a multi-dimensional vtable. + template + struct _Multi_array; + + // Partial specialization with rank zero, stores a single _Tp element. + template + struct _Multi_array<_Tp> + { + template + struct __untag_result + : false_type + { using element_type = _Tp; }; + + template + struct __untag_result + : false_type + { using element_type = void(*)(_Args...); }; + + template + struct __untag_result<__variant_cookie(*)(_Args...)> + : false_type + { using element_type = void(*)(_Args...); }; + + template + struct __untag_result<__variant_idx_cookie(*)(_Args...)> + : false_type + { using element_type = void(*)(_Args...); }; + + template + struct __untag_result<__deduce_visit_result<_Res>(*)(_Args...)> + : true_type + { using element_type = _Res(*)(_Args...); }; + + using __result_is_deduced = __untag_result<_Tp>; + + constexpr const typename __untag_result<_Tp>::element_type& + _M_access() const + { return _M_data; } + + typename __untag_result<_Tp>::element_type _M_data; + }; + + // Partial specialization with rank >= 1. + template + struct _Multi_array<_Ret(*)(_Visitor, _Variants...), __first, __rest...> + { + static constexpr size_t __index = + sizeof...(_Variants) - sizeof...(__rest) - 1; + + using _Variant = typename _Nth_type<__index, _Variants...>::type; + + static constexpr int __do_cookie = + _Extra_visit_slot_needed<_Ret, _Variant>::value ? 1 : 0; + + using _Tp = _Ret(*)(_Visitor, _Variants...); + + template + constexpr decltype(auto) + _M_access(size_t __first_index, _Args... __rest_indices) const + { + return _M_arr[__first_index + __do_cookie] + ._M_access(__rest_indices...); + } + + _Multi_array<_Tp, __rest...> _M_arr[__first + __do_cookie]; + }; + + // Creates a multi-dimensional vtable recursively. + // + // For example, + // visit([](auto, auto){}, + // variant(), // typedef'ed as V1 + // variant()) // typedef'ed as V2 + // will trigger instantiations of: + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<0>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<0, 0>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<0, 1>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<0, 2>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<1>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<1, 0>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<1, 1>> + // __gen_vtable_impl<_Multi_array, + // tuple, std::index_sequence<1, 2>> + // The returned multi-dimensional vtable can be fast accessed by the visitor + // using index calculation. + template + struct __gen_vtable_impl; + + // Defines the _S_apply() member that returns a _Multi_array populated + // with function pointers that perform the visitation expressions e(m) + // for each valid pack of indexes into the variant types _Variants. + // + // This partial specialization builds up the index sequences by recursively + // calling _S_apply() on the next specialization of __gen_vtable_impl. + // The base case of the recursion defines the actual function pointers. + template + struct __gen_vtable_impl< + _Multi_array<_Result_type (*)(_Visitor, _Variants...), __dimensions...>, + std::index_sequence<__indices...>> + { + using _Next = + remove_reference_t::type>; + using _Array_type = + _Multi_array<_Result_type (*)(_Visitor, _Variants...), + __dimensions...>; + + static constexpr _Array_type + _S_apply() + { + _Array_type __vtable{}; + _S_apply_all_alts( + __vtable, make_index_sequence>()); + return __vtable; + } + + template + static constexpr void + _S_apply_all_alts(_Array_type& __vtable, + std::index_sequence<__var_indices...>) + { + if constexpr (_Extra_visit_slot_needed<_Result_type, _Next>::value) + (_S_apply_single_alt( + __vtable._M_arr[__var_indices + 1], + &(__vtable._M_arr[0])), ...); + else + (_S_apply_single_alt( + __vtable._M_arr[__var_indices]), ...); + } + + template + static constexpr void + _S_apply_single_alt(_Tp& __element, _Tp* __cookie_element = nullptr) + { + if constexpr (__do_cookie) + { + __element = __gen_vtable_impl< + _Tp, + std::index_sequence<__indices..., __index>>::_S_apply(); + *__cookie_element = __gen_vtable_impl< + _Tp, + std::index_sequence<__indices..., variant_npos>>::_S_apply(); + } + else + { + __element = __gen_vtable_impl< + remove_reference_t, + std::index_sequence<__indices..., __index>>::_S_apply(); + } + } + }; + + // This partial specialization is the base case for the recursion. + // It populates a _Multi_array element with the address of a function + // that invokes the visitor with the alternatives specified by __indices. + template + struct __gen_vtable_impl< + _Multi_array<_Result_type (*)(_Visitor, _Variants...)>, + std::index_sequence<__indices...>> + { + using _Array_type = + _Multi_array<_Result_type (*)(_Visitor, _Variants...)>; + + template + static constexpr decltype(auto) + __element_by_index_or_cookie(_Variant&& __var) noexcept + { + if constexpr (__index != variant_npos) + return __variant::__get<__index>(std::forward<_Variant>(__var)); + else + return __variant_cookie{}; + } + + static constexpr decltype(auto) + __visit_invoke(_Visitor&& __visitor, _Variants... __vars) + { + if constexpr (is_same_v<_Result_type, __variant_idx_cookie>) + // For raw visitation using indices, pass the indices to the visitor + // and discard the return value: + std::__invoke(std::forward<_Visitor>(__visitor), + __element_by_index_or_cookie<__indices>( + std::forward<_Variants>(__vars))..., + integral_constant()...); + else if constexpr (is_same_v<_Result_type, __variant_cookie>) + // For raw visitation without indices, and discard the return value: + std::__invoke(std::forward<_Visitor>(__visitor), + __element_by_index_or_cookie<__indices>( + std::forward<_Variants>(__vars))...); + else if constexpr (_Array_type::__result_is_deduced::value) + // For the usual std::visit case deduce the return value: + return std::__invoke(std::forward<_Visitor>(__visitor), + __element_by_index_or_cookie<__indices>( + std::forward<_Variants>(__vars))...); + else // for std::visit use INVOKE + return std::__invoke_r<_Result_type>( + std::forward<_Visitor>(__visitor), + __variant::__get<__indices>(std::forward<_Variants>(__vars))...); + } + + static constexpr auto + _S_apply() + { return _Array_type{&__visit_invoke}; } + }; + + template + struct __gen_vtable + { + using _Array_type = + _Multi_array<_Result_type (*)(_Visitor, _Variants...), + variant_size_v>...>; + + static constexpr _Array_type _S_vtable + = __gen_vtable_impl<_Array_type, std::index_sequence<>>::_S_apply(); + }; + + template + struct _Base_dedup : public _Tp { }; + + template + struct _Variant_hash_base; + + template + struct _Variant_hash_base, + std::index_sequence<__indices...>> + : _Base_dedup<__indices, __poison_hash>>... { }; + +} // namespace __variant +} // namespace __detail + + template + void __variant_construct_by_index(_Variant& __v, _Args&&... __args) + { + __v._M_index = _Np; + auto&& __storage = __detail::__variant::__get<_Np>(__v); + ::new ((void*)std::addressof(__storage)) + remove_reference_t + (std::forward<_Args>(__args)...); + } + + template + constexpr bool + holds_alternative(const variant<_Types...>& __v) noexcept + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + return __v.index() == __detail::__variant::__index_of_v<_Tp, _Types...>; + } + + template + constexpr _Tp& get(variant<_Types...>& __v) + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + static_assert(!is_void_v<_Tp>, "_Tp must not be void"); + return std::get<__detail::__variant::__index_of_v<_Tp, _Types...>>(__v); + } + + template + constexpr _Tp&& get(variant<_Types...>&& __v) + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + static_assert(!is_void_v<_Tp>, "_Tp must not be void"); + return std::get<__detail::__variant::__index_of_v<_Tp, _Types...>>( + std::move(__v)); + } + + template + constexpr const _Tp& get(const variant<_Types...>& __v) + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + static_assert(!is_void_v<_Tp>, "_Tp must not be void"); + return std::get<__detail::__variant::__index_of_v<_Tp, _Types...>>(__v); + } + + template + constexpr const _Tp&& get(const variant<_Types...>&& __v) + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + static_assert(!is_void_v<_Tp>, "_Tp must not be void"); + return std::get<__detail::__variant::__index_of_v<_Tp, _Types...>>( + std::move(__v)); + } + + template + constexpr add_pointer_t>> + get_if(variant<_Types...>* __ptr) noexcept + { + using _Alternative_type = variant_alternative_t<_Np, variant<_Types...>>; + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + static_assert(!is_void_v<_Alternative_type>, "_Tp must not be void"); + if (__ptr && __ptr->index() == _Np) + return std::addressof(__detail::__variant::__get<_Np>(*__ptr)); + return nullptr; + } + + template + constexpr + add_pointer_t>> + get_if(const variant<_Types...>* __ptr) noexcept + { + using _Alternative_type = variant_alternative_t<_Np, variant<_Types...>>; + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + static_assert(!is_void_v<_Alternative_type>, "_Tp must not be void"); + if (__ptr && __ptr->index() == _Np) + return std::addressof(__detail::__variant::__get<_Np>(*__ptr)); + return nullptr; + } + + template + constexpr add_pointer_t<_Tp> + get_if(variant<_Types...>* __ptr) noexcept + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + static_assert(!is_void_v<_Tp>, "_Tp must not be void"); + return std::get_if<__detail::__variant::__index_of_v<_Tp, _Types...>>( + __ptr); + } + + template + constexpr add_pointer_t + get_if(const variant<_Types...>* __ptr) noexcept + { + static_assert(__detail::__variant::__exactly_once<_Tp, _Types...>, + "T must occur exactly once in alternatives"); + static_assert(!is_void_v<_Tp>, "_Tp must not be void"); + return std::get_if<__detail::__variant::__index_of_v<_Tp, _Types...>>( + __ptr); + } + + struct monostate { }; + +#define _VARIANT_RELATION_FUNCTION_TEMPLATE(__OP, __NAME) \ + template \ + constexpr bool operator __OP(const variant<_Types...>& __lhs, \ + const variant<_Types...>& __rhs) \ + { \ + bool __ret = true; \ + __detail::__variant::__raw_idx_visit( \ + [&__ret, &__lhs] (auto&& __rhs_mem, auto __rhs_index) mutable \ + { \ + if constexpr (__rhs_index != variant_npos) \ + { \ + if (__lhs.index() == __rhs_index) \ + { \ + auto& __this_mem = std::get<__rhs_index>(__lhs); \ + __ret = __this_mem __OP __rhs_mem; \ + } \ + else \ + __ret = (__lhs.index() + 1) __OP (__rhs_index + 1); \ + } \ + else \ + __ret = (__lhs.index() + 1) __OP (__rhs_index + 1); \ + }, __rhs); \ + return __ret; \ + } + + _VARIANT_RELATION_FUNCTION_TEMPLATE(<, less) + _VARIANT_RELATION_FUNCTION_TEMPLATE(<=, less_equal) + _VARIANT_RELATION_FUNCTION_TEMPLATE(==, equal) + _VARIANT_RELATION_FUNCTION_TEMPLATE(!=, not_equal) + _VARIANT_RELATION_FUNCTION_TEMPLATE(>=, greater_equal) + _VARIANT_RELATION_FUNCTION_TEMPLATE(>, greater) + +#undef _VARIANT_RELATION_FUNCTION_TEMPLATE + + constexpr bool operator==(monostate, monostate) noexcept { return true; } + +#ifdef __cpp_lib_three_way_comparison + template + requires (three_way_comparable<_Types> && ...) + constexpr + common_comparison_category_t...> + operator<=>(const variant<_Types...>& __v, const variant<_Types...>& __w) + { + common_comparison_category_t...> __ret + = strong_ordering::equal; + + __detail::__variant::__raw_idx_visit( + [&__ret, &__v] (auto&& __w_mem, auto __w_index) mutable + { + if constexpr (__w_index != variant_npos) + { + if (__v.index() == __w_index) + { + auto& __this_mem = std::get<__w_index>(__v); + __ret = __this_mem <=> __w_mem; + return; + } + } + __ret = (__v.index() + 1) <=> (__w_index + 1); + }, __w); + return __ret; + } + + constexpr strong_ordering + operator<=>(monostate, monostate) noexcept { return strong_ordering::equal; } +#else + constexpr bool operator!=(monostate, monostate) noexcept { return false; } + constexpr bool operator<(monostate, monostate) noexcept { return false; } + constexpr bool operator>(monostate, monostate) noexcept { return false; } + constexpr bool operator<=(monostate, monostate) noexcept { return true; } + constexpr bool operator>=(monostate, monostate) noexcept { return true; } +#endif + + template + constexpr decltype(auto) visit(_Visitor&&, _Variants&&...); + + template + inline enable_if_t<(is_move_constructible_v<_Types> && ...) + && (is_swappable_v<_Types> && ...)> + swap(variant<_Types...>& __lhs, variant<_Types...>& __rhs) + noexcept(noexcept(__lhs.swap(__rhs))) + { __lhs.swap(__rhs); } + + template + enable_if_t && ...) + && (is_swappable_v<_Types> && ...))> + swap(variant<_Types...>&, variant<_Types...>&) = delete; + + inline void + __throw_bad_variant_access(bool __valueless __attribute__((unused))) + { + __throw_bad_variant_access(""); + } + + template + class variant + : private __detail::__variant::_Variant_base<_Types...>, + private _Enable_default_constructor< + __detail::__variant::_Traits<_Types...>::_S_default_ctor, + variant<_Types...>>, + private _Enable_copy_move< + __detail::__variant::_Traits<_Types...>::_S_copy_ctor, + __detail::__variant::_Traits<_Types...>::_S_copy_assign, + __detail::__variant::_Traits<_Types...>::_S_move_ctor, + __detail::__variant::_Traits<_Types...>::_S_move_assign, + variant<_Types...>> + { + private: + template + friend decltype(auto) __variant_cast(_Tp&&); + template + friend void __variant_construct_by_index(_Variant& __v, + _Args&&... __args); + + static_assert(sizeof...(_Types) > 0, + "variant must have at least one alternative"); + static_assert(!(std::is_reference_v<_Types> || ...), + "variant must have no reference alternative"); + static_assert(!(std::is_void_v<_Types> || ...), + "variant must have no void alternative"); + + using _Base = __detail::__variant::_Variant_base<_Types...>; + using _Default_ctor_enabler = + _Enable_default_constructor< + __detail::__variant::_Traits<_Types...>::_S_default_ctor, + variant<_Types...>>; + + template + static constexpr bool __not_self + = !is_same_v<__remove_cvref_t<_Tp>, variant>; + + template + static constexpr bool + __exactly_once = __detail::__variant::__exactly_once<_Tp, _Types...>; + + template + static constexpr size_t __accepted_index + = __detail::__variant::__accepted_index<_Tp, variant>::value; + + template> + using __to_type = variant_alternative_t<_Np, variant>; + + template>> + using __accepted_type = __to_type<__accepted_index<_Tp>>; + + template + static constexpr size_t __index_of = + __detail::__variant::__index_of_v<_Tp, _Types...>; + + using _Traits = __detail::__variant::_Traits<_Types...>; + + template + struct __is_in_place_tag : false_type { }; + template + struct __is_in_place_tag> : true_type { }; + template + struct __is_in_place_tag> : true_type { }; + + template + static constexpr bool __not_in_place_tag + = !__is_in_place_tag<__remove_cvref_t<_Tp>>::value; + + public: + variant() = default; + variant(const variant& __rhs) = default; + variant(variant&&) = default; + variant& operator=(const variant&) = default; + variant& operator=(variant&&) = default; + ~variant() = default; + + template, + typename = enable_if_t<__not_in_place_tag<_Tp>>, + typename _Tj = __accepted_type<_Tp&&>, + typename = enable_if_t<__exactly_once<_Tj> + && is_constructible_v<_Tj, _Tp>>> + constexpr + variant(_Tp&& __t) + noexcept(is_nothrow_constructible_v<_Tj, _Tp>) + : variant(in_place_index<__accepted_index<_Tp>>, + std::forward<_Tp>(__t)) + { } + + template + && is_constructible_v<_Tp, _Args...>>> + constexpr explicit + variant(in_place_type_t<_Tp>, _Args&&... __args) + : variant(in_place_index<__index_of<_Tp>>, + std::forward<_Args>(__args)...) + { } + + template + && is_constructible_v<_Tp, + initializer_list<_Up>&, _Args...>>> + constexpr explicit + variant(in_place_type_t<_Tp>, initializer_list<_Up> __il, + _Args&&... __args) + : variant(in_place_index<__index_of<_Tp>>, __il, + std::forward<_Args>(__args)...) + { } + + template, + typename = enable_if_t>> + constexpr explicit + variant(in_place_index_t<_Np>, _Args&&... __args) + : _Base(in_place_index<_Np>, std::forward<_Args>(__args)...), + _Default_ctor_enabler(_Enable_default_constructor_tag{}) + { } + + template, + typename = enable_if_t&, + _Args...>>> + constexpr explicit + variant(in_place_index_t<_Np>, initializer_list<_Up> __il, + _Args&&... __args) + : _Base(in_place_index<_Np>, __il, std::forward<_Args>(__args)...), + _Default_ctor_enabler(_Enable_default_constructor_tag{}) + { } + + template + enable_if_t<__exactly_once<__accepted_type<_Tp&&>> + && is_constructible_v<__accepted_type<_Tp&&>, _Tp> + && is_assignable_v<__accepted_type<_Tp&&>&, _Tp>, + variant&> + operator=(_Tp&& __rhs) + noexcept(is_nothrow_assignable_v<__accepted_type<_Tp&&>&, _Tp> + && is_nothrow_constructible_v<__accepted_type<_Tp&&>, _Tp>) + { + constexpr auto __index = __accepted_index<_Tp>; + if (index() == __index) + std::get<__index>(*this) = std::forward<_Tp>(__rhs); + else + { + using _Tj = __accepted_type<_Tp&&>; + if constexpr (is_nothrow_constructible_v<_Tj, _Tp> + || !is_nothrow_move_constructible_v<_Tj>) + this->emplace<__index>(std::forward<_Tp>(__rhs)); + else + operator=(variant(std::forward<_Tp>(__rhs))); + } + return *this; + } + + template + enable_if_t && __exactly_once<_Tp>, + _Tp&> + emplace(_Args&&... __args) + { + constexpr size_t __index = __index_of<_Tp>; + return this->emplace<__index>(std::forward<_Args>(__args)...); + } + + template + enable_if_t&, _Args...> + && __exactly_once<_Tp>, + _Tp&> + emplace(initializer_list<_Up> __il, _Args&&... __args) + { + constexpr size_t __index = __index_of<_Tp>; + return this->emplace<__index>(__il, std::forward<_Args>(__args)...); + } + + template + enable_if_t, + _Args...>, + variant_alternative_t<_Np, variant>&> + emplace(_Args&&... __args) + { + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + using type = variant_alternative_t<_Np, variant>; + // Provide the strong exception-safety guarantee when possible, + // to avoid becoming valueless. + if constexpr (is_nothrow_constructible_v) + { + this->_M_reset(); + __variant_construct_by_index<_Np>(*this, + std::forward<_Args>(__args)...); + } + else if constexpr (is_scalar_v) + { + // This might invoke a potentially-throwing conversion operator: + const type __tmp(std::forward<_Args>(__args)...); + // But these steps won't throw: + this->_M_reset(); + __variant_construct_by_index<_Np>(*this, __tmp); + } + else if constexpr (__detail::__variant::_Never_valueless_alt() + && _Traits::_S_move_assign) + { + // This construction might throw: + variant __tmp(in_place_index<_Np>, + std::forward<_Args>(__args)...); + // But _Never_valueless_alt means this won't: + *this = std::move(__tmp); + } + else + { + // This case only provides the basic exception-safety guarantee, + // i.e. the variant can become valueless. + this->_M_reset(); + __try + { + __variant_construct_by_index<_Np>(*this, + std::forward<_Args>(__args)...); + } + __catch (...) + { + this->_M_index = variant_npos; + __throw_exception_again; + } + } + return std::get<_Np>(*this); + } + + template + enable_if_t, + initializer_list<_Up>&, _Args...>, + variant_alternative_t<_Np, variant>&> + emplace(initializer_list<_Up> __il, _Args&&... __args) + { + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + using type = variant_alternative_t<_Np, variant>; + // Provide the strong exception-safety guarantee when possible, + // to avoid becoming valueless. + if constexpr (is_nothrow_constructible_v&, + _Args...>) + { + this->_M_reset(); + __variant_construct_by_index<_Np>(*this, __il, + std::forward<_Args>(__args)...); + } + else if constexpr (__detail::__variant::_Never_valueless_alt() + && _Traits::_S_move_assign) + { + // This construction might throw: + variant __tmp(in_place_index<_Np>, __il, + std::forward<_Args>(__args)...); + // But _Never_valueless_alt means this won't: + *this = std::move(__tmp); + } + else + { + // This case only provides the basic exception-safety guarantee, + // i.e. the variant can become valueless. + this->_M_reset(); + __try + { + __variant_construct_by_index<_Np>(*this, __il, + std::forward<_Args>(__args)...); + } + __catch (...) + { + this->_M_index = variant_npos; + __throw_exception_again; + } + } + return std::get<_Np>(*this); + } + + constexpr bool valueless_by_exception() const noexcept + { return !this->_M_valid(); } + + constexpr size_t index() const noexcept + { + using __index_type = typename _Base::__index_type; + if constexpr (__detail::__variant::__never_valueless<_Types...>()) + return this->_M_index; + else if constexpr (sizeof...(_Types) <= __index_type(-1) / 2) + return make_signed_t<__index_type>(this->_M_index); + else + return size_t(__index_type(this->_M_index + 1)) - 1; + } + + void + swap(variant& __rhs) + noexcept((__is_nothrow_swappable<_Types>::value && ...) + && is_nothrow_move_constructible_v) + { + __detail::__variant::__raw_idx_visit( + [this, &__rhs](auto&& __rhs_mem, auto __rhs_index) mutable + { + if constexpr (__rhs_index != variant_npos) + { + if (this->index() == __rhs_index) + { + auto& __this_mem = + std::get<__rhs_index>(*this); + using std::swap; + swap(__this_mem, __rhs_mem); + } + else + { + if (!this->valueless_by_exception()) [[__likely__]] + { + auto __tmp(std::move(__rhs_mem)); + __rhs = std::move(*this); + this->_M_destructive_move(__rhs_index, + std::move(__tmp)); + } + else + { + this->_M_destructive_move(__rhs_index, + std::move(__rhs_mem)); + __rhs._M_reset(); + } + } + } + else + { + if (!this->valueless_by_exception()) [[__likely__]] + { + __rhs = std::move(*this); + this->_M_reset(); + } + } + }, __rhs); + } + + private: + +#if defined(__clang__) && __clang_major__ <= 7 + public: + using _Base::_M_u; // See https://bugs.llvm.org/show_bug.cgi?id=31852 + private: +#endif + + template + friend constexpr decltype(auto) + __detail::__variant::__get(_Vp&& __v) noexcept; + + template + friend void* + __detail::__variant::__get_storage(_Vp&& __v) noexcept; + +#define _VARIANT_RELATION_FUNCTION_TEMPLATE(__OP) \ + template \ + friend constexpr bool \ + operator __OP(const variant<_Tp...>& __lhs, \ + const variant<_Tp...>& __rhs); + + _VARIANT_RELATION_FUNCTION_TEMPLATE(<) + _VARIANT_RELATION_FUNCTION_TEMPLATE(<=) + _VARIANT_RELATION_FUNCTION_TEMPLATE(==) + _VARIANT_RELATION_FUNCTION_TEMPLATE(!=) + _VARIANT_RELATION_FUNCTION_TEMPLATE(>=) + _VARIANT_RELATION_FUNCTION_TEMPLATE(>) + +#undef _VARIANT_RELATION_FUNCTION_TEMPLATE + }; + + template + constexpr variant_alternative_t<_Np, variant<_Types...>>& + get(variant<_Types...>& __v) + { + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + if (__v.index() != _Np) + __throw_bad_variant_access(__v.valueless_by_exception()); + return __detail::__variant::__get<_Np>(__v); + } + + template + constexpr variant_alternative_t<_Np, variant<_Types...>>&& + get(variant<_Types...>&& __v) + { + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + if (__v.index() != _Np) + __throw_bad_variant_access(__v.valueless_by_exception()); + return __detail::__variant::__get<_Np>(std::move(__v)); + } + + template + constexpr const variant_alternative_t<_Np, variant<_Types...>>& + get(const variant<_Types...>& __v) + { + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + if (__v.index() != _Np) + __throw_bad_variant_access(__v.valueless_by_exception()); + return __detail::__variant::__get<_Np>(__v); + } + + template + constexpr const variant_alternative_t<_Np, variant<_Types...>>&& + get(const variant<_Types...>&& __v) + { + static_assert(_Np < sizeof...(_Types), + "The index must be in [0, number of alternatives)"); + if (__v.index() != _Np) + __throw_bad_variant_access(__v.valueless_by_exception()); + return __detail::__variant::__get<_Np>(std::move(__v)); + } + + template + constexpr decltype(auto) + __do_visit(_Visitor&& __visitor, _Variants&&... __variants) + { + constexpr auto& __vtable = __detail::__variant::__gen_vtable< + _Result_type, _Visitor&&, _Variants&&...>::_S_vtable; + + auto __func_ptr = __vtable._M_access(__variants.index()...); + return (*__func_ptr)(std::forward<_Visitor>(__visitor), + std::forward<_Variants>(__variants)...); + } + + template + constexpr decltype(auto) + visit(_Visitor&& __visitor, _Variants&&... __variants) + { + if ((__variants.valueless_by_exception() || ...)) + __throw_bad_variant_access("std::visit: variant is valueless"); + + using _Result_type = std::invoke_result_t<_Visitor, + decltype(std::get<0>(std::declval<_Variants>()))...>; + + using _Tag = __detail::__variant::__deduce_visit_result<_Result_type>; + + return std::__do_visit<_Tag>(std::forward<_Visitor>(__visitor), + std::forward<_Variants>(__variants)...); + } + +#if __cplusplus > 201703L + template + constexpr _Res + visit(_Visitor&& __visitor, _Variants&&... __variants) + { + if ((__variants.valueless_by_exception() || ...)) + __throw_bad_variant_access("std::visit: variant is valueless"); + + return std::__do_visit<_Res>(std::forward<_Visitor>(__visitor), + std::forward<_Variants>(__variants)...); + } +#endif + + template + struct __variant_hash_call_base_impl + { + size_t + operator()(const variant<_Types...>& __t) const + noexcept((is_nothrow_invocable_v>, _Types> && ...)) + { + size_t __ret; + __detail::__variant::__raw_visit( + [&__t, &__ret](auto&& __t_mem) mutable + { + using _Type = __remove_cvref_t; + if constexpr (!is_same_v<_Type, + __detail::__variant::__variant_cookie>) + __ret = std::hash{}(__t.index()) + + std::hash<_Type>{}(__t_mem); + else + __ret = std::hash{}(__t.index()); + }, __t); + return __ret; + } + }; + + template + struct __variant_hash_call_base_impl {}; + + template + using __variant_hash_call_base = + __variant_hash_call_base_impl<(__poison_hash>:: + __enable_hash_call &&...), _Types...>; + + template + struct hash> + : private __detail::__variant::_Variant_hash_base< + variant<_Types...>, std::index_sequence_for<_Types...>>, + public __variant_hash_call_base<_Types...> + { + using result_type [[__deprecated__]] = size_t; + using argument_type [[__deprecated__]] = variant<_Types...>; + }; + + template<> + struct hash + { + using result_type [[__deprecated__]] = size_t; + using argument_type [[__deprecated__]] = monostate; + + size_t + operator()(const monostate&) const noexcept + { + constexpr size_t __magic_monostate_hash = -7777; + return __magic_monostate_hash; + } + }; + + template + struct __is_fast_hash>> + : bool_constant<(__is_fast_hash<_Types>::value && ...)> + { }; + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif // C++17 + +#endif // _GLIBCXX_VARIANT diff --git a/resources/sources/avr-libstdcpp/include/vector b/resources/sources/avr-libstdcpp/include/vector new file mode 100644 index 000000000..6f587a82a --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/vector @@ -0,0 +1,129 @@ +// -*- C++ -*- + +// Copyright (C) 2001-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file include/vector + * This is a Standard C++ Library header. + */ + +#ifndef _GLIBCXX_VECTOR +#define _GLIBCXX_VECTOR 1 + +#pragma GCC system_header + +#include +#if __cplusplus > 201703L +# include // For remove and remove_if +#endif // C++20 +#include +#include +#include +#include +#include +#include + +#ifndef _GLIBCXX_EXPORT_TEMPLATE +# include +#endif + +#ifdef _GLIBCXX_DEBUG +# include +#endif + +#if __cplusplus >= 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + namespace pmr { + template class polymorphic_allocator; + template + using vector = std::vector<_Tp, polymorphic_allocator<_Tp>>; + } // namespace pmr +# ifdef _GLIBCXX_DEBUG + namespace _GLIBCXX_STD_C::pmr { + template + using vector + = _GLIBCXX_STD_C::vector<_Tp, std::pmr::polymorphic_allocator<_Tp>>; + } // namespace _GLIBCXX_STD_C::pmr +# endif +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++17 + +#if __cplusplus > 201703L +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + +#define __cpp_lib_erase_if 202002L + + template + inline typename vector<_Tp, _Alloc>::size_type + erase_if(vector<_Tp, _Alloc>& __cont, _Predicate __pred) + { + const auto __osz = __cont.size(); + __cont.erase(std::remove_if(__cont.begin(), __cont.end(), __pred), + __cont.end()); + return __osz - __cont.size(); + } + + template + inline typename vector<_Tp, _Alloc>::size_type + erase(vector<_Tp, _Alloc>& __cont, const _Up& __value) + { + const auto __osz = __cont.size(); + __cont.erase(std::remove(__cont.begin(), __cont.end(), __value), + __cont.end()); + return __osz - __cont.size(); + } +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std +#endif // C++20 + +#endif /* _GLIBCXX_VECTOR */ diff --git a/resources/sources/avr-libstdcpp/include/version b/resources/sources/avr-libstdcpp/include/version new file mode 100644 index 000000000..1e98be3ce --- /dev/null +++ b/resources/sources/avr-libstdcpp/include/version @@ -0,0 +1,231 @@ +// -*- C++ -*- Libstdc++ version details header. + +// Copyright (C) 2018-2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file version + * This is a Standard C++ Library file. You should @c \#include this file + * in your programs, rather than any of the @a *.h implementation files. + */ + +#ifndef _GLIBCXX_VERSION_INCLUDED +#define _GLIBCXX_VERSION_INCLUDED + +#pragma GCC system_header + +#include + +// c++03 +#if _GLIBCXX_HOSTED +# define __cpp_lib_incomplete_container_elements 201505 +#endif + +#if !defined(__STRICT_ANSI__) +// gnu++03 +# define __cpp_lib_uncaught_exceptions 201411L +#endif + +#if __cplusplus >= 201103L +// c++11 +#define __cpp_lib_is_null_pointer 201309 +#define __cpp_lib_result_of_sfinae 201210 + +#if _GLIBCXX_HOSTED +# define __cpp_lib_allocator_traits_is_always_equal 201411 +# define __cpp_lib_shared_ptr_arrays 201611L +#endif + +#if !defined(__STRICT_ANSI__) +// gnu++11 +# define __cpp_lib_is_swappable 201603 +# define __cpp_lib_void_t 201411 +# if _GLIBCXX_HOSTED +# define __cpp_lib_enable_shared_from_this 201603 +# endif +#endif + +// For C++11 and later we support ISO/IEC 29124 Mathematical Special Functions +#define __STDCPP_MATH_SPEC_FUNCS__ 201003L + +#if __cplusplus >= 201402L +// c++14 +#if __cpp_impl_coroutine +# define __cpp_lib_coroutine 201902L +#endif +#define __cpp_lib_integral_constant_callable 201304 +#define __cpp_lib_is_final 201402L +#define __cpp_lib_transformation_trait_aliases 201304 + +#if _GLIBCXX_HOSTED +# define __cpp_lib_chrono_udls 201304 +# define __cpp_lib_complex_udls 201309 +# define __cpp_lib_exchange_function 201304 +# define __cpp_lib_generic_associative_lookup 201304 +# define __cpp_lib_integer_sequence 201304 +# define __cpp_lib_make_reverse_iterator 201402 +# define __cpp_lib_make_unique 201304 +# ifndef _GLIBCXX_DEBUG // PR libstdc++/70303 +# define __cpp_lib_null_iterators 201304L +# endif +# define __cpp_lib_quoted_string_io 201304 +# define __cpp_lib_robust_nonmodifying_seq_ops 201304 +# ifdef _GLIBCXX_HAS_GTHREADS +# define __cpp_lib_shared_timed_mutex 201402 +# endif +# define __cpp_lib_string_udls 201304 +# define __cpp_lib_transparent_operators 201510 +# define __cpp_lib_tuple_element_t 201402L +# define __cpp_lib_tuples_by_type 201304 +#endif + +#if __cplusplus >= 201703L +// c++17 +#define __cpp_lib_addressof_constexpr 201603 +#define __cpp_lib_atomic_is_always_lock_free 201603 +#define __cpp_lib_bool_constant 201505 +#define __cpp_lib_byte 201603 +#ifdef _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP +# define __cpp_lib_has_unique_object_representations 201606 +#endif +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE +# define __cpp_lib_is_aggregate 201703 +#endif +#define __cpp_lib_is_invocable 201703 +#define __cpp_lib_is_swappable 201603 +#ifdef _GLIBCXX_HAVE_BUILTIN_LAUNDER +# define __cpp_lib_launder 201606 +#endif +#define __cpp_lib_logical_traits 201510 +#define __cpp_lib_type_trait_variable_templates 201510L +#define __cpp_lib_uncaught_exceptions 201411L +#define __cpp_lib_void_t 201411 + +#if _GLIBCXX_HOSTED +#define __cpp_lib_any 201606L +#define __cpp_lib_apply 201603 +#define __cpp_lib_array_constexpr 201803L +#define __cpp_lib_as_const 201510 +#define __cpp_lib_boyer_moore_searcher 201603 +#define __cpp_lib_chrono 201611 +#define __cpp_lib_clamp 201603 +#define __cpp_lib_constexpr_char_traits 201611 +#define __cpp_lib_enable_shared_from_this 201603 +#define __cpp_lib_execution 201902L // FIXME: should be 201603L +#define __cpp_lib_filesystem 201703 +#define __cpp_lib_gcd 201606 +#define __cpp_lib_gcd_lcm 201606 +#define __cpp_lib_hypot 201603 +#define __cpp_lib_invoke 201411L +#define __cpp_lib_lcm 201606 +#define __cpp_lib_make_from_tuple 201606 +#define __cpp_lib_map_try_emplace 201411 +#define __cpp_lib_math_special_functions 201603L +#ifdef _GLIBCXX_HAS_GTHREADS +# define __cpp_lib_memory_resource 201603 +#else +# define __cpp_lib_memory_resource 1 +#endif +#define __cpp_lib_node_extract 201606 +#define __cpp_lib_nonmember_container_access 201411 +#define __cpp_lib_not_fn 201603 +#define __cpp_lib_optional 201606L +#define __cpp_lib_raw_memory_algorithms 201606L +#define __cpp_lib_sample 201603 +#ifdef _GLIBCXX_HAS_GTHREADS +# define __cpp_lib_scoped_lock 201703 +# define __cpp_lib_shared_mutex 201505 +#endif +#define __cpp_lib_shared_ptr_weak_type 201606 +#define __cpp_lib_string_view 201803L +// #define __cpp_lib_to_chars 201611L +#define __cpp_lib_unordered_map_try_emplace 201411 +#define __cpp_lib_variant 201606L +#endif + +#if __cplusplus > 201703L +// c++2a +#define __cpp_lib_atomic_float 201711L +#define __cpp_lib_atomic_ref 201806L +#define __cpp_lib_atomic_value_initialization 201911L +#define __cpp_lib_bitops 201907L +#define __cpp_lib_bounded_array_traits 201902L +// __cpp_lib_char8_t is defined in +#if __cpp_concepts >= 201907L +# define __cpp_lib_concepts 202002L +#endif +#if __cpp_impl_destroying_delete +# define __cpp_lib_destroying_delete 201806L +#endif +#define __cpp_lib_endian 201907L +#define __cpp_lib_int_pow2 202002L +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED +# define __cpp_lib_is_constant_evaluated 201811L +#endif +#define __cpp_lib_is_nothrow_convertible 201806L +#define __cpp_lib_remove_cvref 201711L +#if __cpp_impl_three_way_comparison >= 201907L && __cpp_lib_concepts +# define __cpp_lib_three_way_comparison 201907L +#endif +#define __cpp_lib_type_identity 201806L +#define __cpp_lib_unwrap_ref 201811L + +#if _GLIBCXX_HOSTED +#undef __cpp_lib_array_constexpr +#define __cpp_lib_array_constexpr 201811L +#define __cpp_lib_assume_aligned 201811L +#define __cpp_lib_bind_front 201907L +// FIXME: #define __cpp_lib_execution 201902L +#define __cpp_lib_integer_comparison_functions 202002L +#define __cpp_lib_constexpr_algorithms 201806L +#define __cpp_lib_constexpr_complex 201711L +#define __cpp_lib_constexpr_dynamic_alloc 201907L +#define __cpp_lib_constexpr_functional 201907L +# define __cpp_lib_constexpr_iterator 201811L +#define __cpp_lib_constexpr_memory 201811L +#define __cpp_lib_constexpr_numeric 201911L +#define __cpp_lib_constexpr_string_view 201811L +#define __cpp_lib_constexpr_tuple 201811L +#define __cpp_lib_constexpr_utility 201811L +#define __cpp_lib_erase_if 202002L +#define __cpp_lib_interpolate 201902L +#ifdef _GLIBCXX_HAS_GTHREADS +# define __cpp_lib_jthread 201911L +#endif +#define __cpp_lib_list_remove_return_type 201806L +#define __cpp_lib_math_constants 201907L +#define __cpp_lib_polymorphic_allocator 201902L +#if __cpp_lib_concepts +# define __cpp_lib_ranges 201911L +#endif +#define __cpp_lib_shift 201806L +#define __cpp_lib_span 202002L +#define __cpp_lib_ssize 201902L +#define __cpp_lib_starts_ends_with 201711L +#define __cpp_lib_to_address 201711L +#define __cpp_lib_to_array 201907L +#endif +#endif // C++2a +#endif // C++17 +#endif // C++14 +#endif // C++11 + +#endif // _GLIBCXX_VERSION_INCLUDED diff --git a/resources/sources/boards/hals.json b/resources/sources/boards/hals.json index f905da3b8..8a1243643 100644 --- a/resources/sources/boards/hals.json +++ b/resources/sources/boards/hals.json @@ -2,8 +2,16 @@ "OpenPLC Simulator": { "compiler": "simulator", "core": "arduino:avr", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "ld_flags": ["-Wl,--defsym,__DATA_REGION_LENGTH__=0xFE00", "-Wl,--defsym,__stack=0x80FFFF"], + "c_flags": [ + "-MMD", + "-c", + "-Wno-incompatible-pointer-types" + ], + "ld_flags": [ + "-Wl,--defsym,__DATA_REGION_LENGTH__=0xFE00", + "-Wl,--defsym,__stack=0x80FFFF" + ], + "max_data_size": 65024, "default_ain": "A0, A1, A2, A3, A4, A5, A6, A7", "default_aout": "2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13", "default_din": "62, 63, 64, 65, 66, 67, 68, 69, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52", @@ -22,1443 +30,68 @@ "WiFi": "No", "Bluetooth": "No", "Ethernet": "No" - } - }, - "Arduino Due (native USB port)": { - "compiler": "arduino-cli", - "core": "arduino:sam", - "default_ain": "A0, A1, A2, A3, A4, A5, A6, A7", - "default_aout": "2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13", - "default_din": "62, 63, 64, 65, 66, 67, 68, 69, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53", - "platform": "arduino:sam:arduino_due_x", - "preview": "due.png", - "source": "mega_due.cpp", - "specs": { - "CPU": "Atmel SAM3X8E ARM Cortex-M3 at 84MHz", - "RAM": "96 KB", - "Flash": "512 KB", - "Digital Pins": "54", - "Analog Pins": "12", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Arduino Due (programming port)": { - "compiler": "arduino-cli", - "core": "arduino:sam", - "default_ain": "A0, A1, A2, A3, A4, A5, A6, A7", - "default_aout": "2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13", - "default_din": "62, 63, 64, 65, 66, 67, 68, 69, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53", - "platform": "arduino:sam:arduino_due_x_dbg", - "preview": "due.png", - "source": "mega_due.cpp", - "specs": { - "CPU": "Atmel SAM3X8E ARM Cortex-M3 at 84MHz", - "RAM": "96 KB", - "Flash": "512 KB", - "Digital Pins": "54", - "Analog Pins": "12", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Arduino Edge Control": { - "compiler": "arduino-cli", - "core": "arduino:mbed_edge", - "default_ain": "INPUT_420mA_CH01, INPUT_420mA_CH02, INPUT_420mA_CH03, INPUT_420mA_CH04, INPUT_05V_CH01, INPUT_05V_CH02, INPUT_05V_CH03, INPUT_05V_CH04, INPUT_05V_CH05, INPUT_05V_CH06, INPUT_05V_CH07, INPUT_05V_CH08", - "default_aout": "-1", - "default_din": "IRQ_CH1, IRQ_CH2, IRQ_CH3, IRQ_CH4, IRQ_CH5, IRQ_CH6", - "default_dout": "RELAY_CH01, RELAY_CH02, RELAY_CH03, RELAY_CH04", - "platform": "arduino:mbed_edge:edge_control", - "preview": "generic.png", - "source": "edge_control.cpp", - "specs": { - "CPU": "nRF52840 ARM Cortex-M4F at 64MHz", - "RAM": "256 KB", - "Flash": "1 MB", - "Digital Pins": "26", - "Analog Pins": "28", - "PWM Pins": "N/A", - "WiFi": "Yes - requires Arduino MKR board", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "Arduino Giga": { - "compiler": "arduino-cli", - "core": "arduino:mbed_giga", - "default_ain": "A0, A1, A2, A3, A4, A5, A6, A7", - "default_aout": "2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 84, 85, 86, 87, 88", - "default_din": "22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 93, 94, 101, 102", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 87", - "define": "BOARD_PORTENTA", - "platform": "arduino:mbed_giga:giga", - "preview": "generic.png", - "source": "giga.cpp", - "specs": { - "CPU": "STM32H747xI ARM Cortex-M7 at 480MHz", - "RAM": "1 MB", - "Flash": "2 MB", - "Digital Pins": "76", - "Analog Pins": "12", - "PWM Pins": "12", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "Arduino Leonardo": { - "compiler": "arduino-cli", - "core": "arduino:avr", - "default_ain": "A0, A1, A2, A3, A4, A5", - "default_aout": "9, 10, 11", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 12, 13", - "platform": "arduino:avr:leonardo", - "preview": "uno.png", - "source": "uno_leonardo_nano_micro_zero.cpp", - "specs": { - "CPU": "ATmega 32u4 at 16MHz", - "RAM": "2.5 KB", - "Flash": "32 KB", - "Digital Pins": "20", - "Analog Pins": "12", - "PWM Pins": "7", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Arduino Mega": { - "compiler": "arduino-cli", - "core": "arduino:avr", - "default_ain": "A0, A1, A2, A3, A4, A5, A6, A7", - "default_aout": "2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13", - "default_din": "62, 63, 64, 65, 66, 67, 68, 69, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53", - "platform": "arduino:avr:mega", - "preview": "mega.png", - "source": "mega_due.cpp", - "specs": { - "CPU": "ATmega 2560 at 16MHz", - "RAM": "8 KB", - "Flash": "256 KB", - "Digital Pins": 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"PWM Pins": "6", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "Arduino Uno Q": { - "compiler": "arduino-cli", - "core": "arduino:zephyr", - "default_ain": "A0, A1, A2, A3, A4, A5", - "default_aout": "9, 10, 11", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 12, 13", - "platform": "arduino:zephyr:unoq", - "preview": "uno_q.png", - "source": "uno_q.cpp", - "specs": { - "CPU": "STM32U585 (ARM Cortex-M33) at 160MHz", - "RAM": "786 KB", - "Flash": "2 MB", - "Digital Pins": "14", - "Analog Pins": "6", - "PWM Pins": "6", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Arduino Zero (native USB port)": { - "compiler": "arduino-cli", - "core": "arduino:samd", - "default_ain": "A0, A1, A2, A3, A4, A5", - "default_aout": "9, 10, 11", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 12, 13", - "platform": "arduino:samd:arduino_zero_native", - "preview": "generic.png", - "source": "uno_leonardo_nano_micro_zero.cpp", - "specs": { - "CPU": "ATSAMD21G18 ARM Cortex-M0+ at 48MHz", - "RAM": "32 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "6", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Arduino Zero (programming port)": { - "compiler": "arduino-cli", - "core": "arduino:samd", - "default_ain": "A0, A1, A2, A3, A4, A5", - "default_aout": "9, 10, 11", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 12, 13", - "platform": "arduino:samd:arduino_zero_edbg", - "preview": "generic.png", - "source": "uno_leonardo_nano_micro_zero.cpp", - "specs": { - "CPU": "ATSAMD21G18 ARM Cortex-M0+ at 48MHz", - "RAM": "32 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "6", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Blackpill STM32-F411CE (DFU STM32 Bootloader)": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": 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"default_ain": "PA0, PA1, PA4, PA5, PA6, PA7", - "default_aout": "PB0, PB1", - "default_din": "PA8, PA11, PA12, PB3, PB4, PB5, PB8, PB9", - "default_dout": "PB10, PB12, PB13, PB14, PB15, PC13, PC14, PC15", - "define": "BOARD_STM32_F411CE", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF4:pnum=BLACKPILL_F411CE,upload_method=swdMethod,usb=CDCgen", - "preview": "generic.png", - "source": "stm32_f411ce.cpp", - "specs": { - "CPU": "STM32F411CE ARM Cortex-M4 at 100MHz", - "RAM": "128 KB", - "Flash": "512 KB", - "Digital Pins": "37", - "Analog Pins": "10", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Blackpill STM32-F411CE (Serial Programmer)": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": "arduino-cli", - "core": "STMicroelectronics:stm32", - "default_ain": "PA0, PA1, PA4, 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"default_aout": "PB0, PB1", - "default_din": "PA8, PA11, PA12, PB3, PB4, PB5, PB8, PB9, PB10", - "default_dout": "PB11, PB12, PB13, PB14, PB15, PC13, PC14, PC15", - "define": "BOARD_STM32_F103CB", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8,upload_method=dfuMethod,usb=CDCgen", - "preview": "generic.png", - "source": "stm32_f103cb.cpp", - "specs": { - "CPU": "STM32F103CB ARM Cortex-M3 at 72MHz", - "RAM": "20 KB", - "Flash": "128 KB", - "Digital Pins": "37", - "Analog Pins": "10", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Bluepill STM32-F103CB (HID Bootloader 2.2)": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": "arduino-cli", - "core": "STMicroelectronics:stm32", - "default_ain": "PA0, PA1, PA4, PA5, PA6, PA7", - "default_aout": "PB0, PB1", - "default_din": "PA8, PA11, PA12, PB3, PB4, PB5, PB8, PB9, PB10", - "default_dout": "PB11, PB12, PB13, PB14, PB15, PC13, PC14, PC15", - "define": "BOARD_STM32_F103CB", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8,upload_method=hidMethod,usb=CDCgen", - "preview": "generic.png", - "source": "stm32_f103cb.cpp", - "specs": { - "CPU": "STM32F103CB ARM Cortex-M3 at 72MHz", - "RAM": "20 KB", - "Flash": "128 KB", - "Digital Pins": "37", - "Analog Pins": "10", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Bluepill STM32-F103CB (SWD Programmer)": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": "arduino-cli", - "core": "STMicroelectronics:stm32", - "default_ain": "PA0, PA1, PA4, PA5, PA6, PA7", - "default_aout": "PB0, PB1", - "default_din": "PA8, PA11, PA12, 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- "default_dout": "PB11, PB12, PB13, PB14, PB15, PC13, PC14, PC15", - "define": "BOARD_STM32_F103CB", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF1:pnum=BLUEPILL_F103C8,upload_method=serialMethod,usb=CDCgen", - "preview": "generic.png", - "source": "stm32_f103cb.cpp", - "specs": { - "CPU": "STM32F103CB ARM Cortex-M3 at 72MHz", - "RAM": "20 KB", - "Flash": "128 KB", - "Digital Pins": "37", - "Analog Pins": "10", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "CONTROLLINO MAXI": { - "board_manager_url": "https://raw.githubusercontent.com/CONTROLLINO-PLC/CONTROLLINO_Library/master/Boards/package_ControllinoHardware_index.json", - "compiler": "arduino-cli", - "core": "CONTROLLINO_Boards:avr", - "default_ain": "A0, A1, A2, A3", - "default_aout": "2, 3, 4, 5", - "default_din": "A4, A5, A6, A7, A8, A9, 18, 19", - "default_dout": "6, 7, 8, 9, 10, 11, 12, 13, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31", - "extra_libraries": [], - "platform": "CONTROLLINO_Boards:avr:controllino_maxi", - "preview": "generic.png", - "source": "controllino_maxi.cpp", - "specs": { - "CPU": "ATmega 2560 at 16MHz", - "RAM": "8 KB", - "Flash": "256 KB", - "Digital Pins": "70", - "Analog Pins": "16", - "PWM Pins": "15", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "Yes" - } - }, - "CONTROLLINO MAXI Automation": { - "board_manager_url": "https://raw.githubusercontent.com/CONTROLLINO-PLC/CONTROLLINO_Library/master/Boards/package_ControllinoHardware_index.json", - "compiler": "arduino-cli", - "core": "CONTROLLINO_Boards:avr", - "default_ain": "A0, A1, A14, A15", - "default_aout": "12, 13", - "default_din": "A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, 10, 11, 18, 19", - "default_dout": "2, 3, 4, 5, 6, 7, 8, 9, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31", - "extra_libraries": [], - "platform": "CONTROLLINO_Boards:avr:controllino_maxi_automation", - "preview": "generic.png", - "source": "controllino_maxi_automation.cpp", - "specs": { - "CPU": "ATmega 2560 at 16MHz", - "RAM": "8 KB", - "Flash": "256 KB", - "Digital Pins": "70", - "Analog Pins": "16", - "PWM Pins": "15", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "Yes" - } - }, - "CONTROLLINO MEGA": { - "board_manager_url": "https://raw.githubusercontent.com/CONTROLLINO-PLC/CONTROLLINO_Library/master/Boards/package_ControllinoHardware_index.json", - "compiler": "arduino-cli", - "core": "CONTROLLINO_Boards:avr", - "default_ain": "A0, A1, A2, A3, A4", - "default_aout": "2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13", - "default_din": "A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, 38, 39, 40, 18, 19", - "default_dout": "42, 43, 44, 45, 46, 47, 48, 49, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37", - "extra_libraries": [], - "platform": "CONTROLLINO_Boards:avr:controllino_mega", - "preview": "generic.png", - "source": "controllino_mega.cpp", - "specs": { - "CPU": "ATmega 2560 at 16MHz", - "RAM": "8 KB", - "Flash": "256 KB", - "Digital Pins": "70", - "Analog Pins": "16", - "PWM Pins": "15", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "Yes" - } - }, - "CONTROLLINO MICRO": { - "board_manager_url": "https://github.com/CONTROLLINO-PLC/controllino_rp2/releases/download/global/package_controllino_rp2_index.json", - "compiler": "arduino-cli", - "core": "controllino_rp2:rp2040", - "default_ain": "50, 51, 52, 53, 54, 55", - "default_aout": "23, 24", - "default_din": "26, 27, 28, 29", - "default_dout": "13, 14, 15, 20, 21, 22", - "extra_libraries": [], - "platform": "controllino_rp2:rp2040:controllino_micro", - "preview": "generic.png", - "source": "controllino_micro.cpp", - "specs": { - "CPU": "RP2040 ARM Cortex-M0+ at 133MHz", - "RAM": "264 KB", - "Flash": "16 MB", - "Digital Pins": "18", - "Analog Pins": "6", - "PWM Pins": "8", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "Yes" - } - }, - "CONTROLLINO MINI": { - "board_manager_url": "https://raw.githubusercontent.com/CONTROLLINO-PLC/CONTROLLINO_Library/master/Boards/package_ControllinoHardware_index.json", - "compiler": "arduino-cli", - "core": "CONTROLLINO_Boards:avr", - "default_ain": "A0, A1", - "default_aout": "5, 6", - "default_din": "A2, A3, A6, A7, 2, 3", - "default_dout": "4, 7, 8, 9, A4, A5", - "extra_libraries": [], - "platform": "CONTROLLINO_Boards:avr:controllino_mini", - "preview": "generic.png", - "source": "controllino_mini.cpp", - "specs": { - "CPU": "ATmega 328P at 16MHz", - "RAM": "2 KB", - "Flash": "32 KB", - "Digital Pins": "14", - "Analog Pins": "6", - "PWM Pins": "6", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "ESP32 Generic": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "34, 35, 36, 39", - "default_aout": 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"Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "ESP32-C3": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "34, 35, 36, 39", - "default_aout": "25, 26", - "default_din": "17, 18, 19, 21, 22, 23, 27, 32, 33", - "default_dout": "01, 02, 03, 04, 05, 12, 13, 14, 15, 16", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "esp32:esp32:esp32c3:CDCOnBoot=cdc", - "preview": "esp32.png", - "source": "esp32.cpp", - "specs": { - "CPU": "ESP32-C3", - "RAM": "400 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "ESP32-C6-DevKitC-1 V1.2": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "0, 1, 2, 3", - "default_aout": "18, 19, 20, 21", - "default_din": "4, 5, 10, 11", - "default_dout": "15, 9, 22, 23, 39", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "esp32:esp32:esp32c6", - "preview": "esp32.png", - "source": "esp32.cpp", - "specs": { - "CPU": "ESP32-C6", - "RAM": "400 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "ESP32-DOIT DEVKIT V1": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "34, 35, 36, 39", - "default_aout": "25, 26", - "default_din": "17, 18, 19, 21, 22, 23, 27, 32, 33", - "default_dout": "02, 04, 05, 12, 13, 14, 15, 16", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "esp32:esp32:esp32doit-devkit-v1", - "preview": "esp32.png", - "source": "esp32.cpp", - "specs": { - "CPU": "ESP32-D0WDQ6", - "RAM": "520 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "ESP32-S2": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "34, 35, 36, 39", - "default_aout": "25, 26", - "default_din": "17, 18, 19, 21, 22, 23, 27, 32, 33", - "default_dout": "01, 02, 03, 04, 05, 12, 13, 14, 15, 16", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "esp32:esp32:esp32s2:CDCOnBoot=cdc,USBMode=hwcdc", - "preview": "esp32.png", - "source": "esp32.cpp", - "specs": { - "CPU": "ESP32-S2", - "RAM": "320 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "ESP32-S3": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "1, 2, 3, 4", - "default_aout": "36, 37", - "default_din": "6, 7, 8, 9", - "default_dout": "34, 35", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "esp32:esp32:esp32s3:CDCOnBoot=cdc,USBMode=hwcdc", - "preview": "esp32.png", - "source": "esp32.cpp", - "specs": { - "CPU": "ESP32-S3", - "RAM": "512 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": 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"extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF1:pnum=GENERIC_F103VCTX,upload_method=serialMethod", - "preview": "generic.png", - "source": "fx3u-14.cpp", - "specs": { - "CPU": "STM32F103VCT6 ARM Cortex-M3 at 72MHz", - "RAM": "64 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "4", - "PWM Pins": "N/A", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "WS3U-14Mx": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": "arduino-cli", - "core": "STMicroelectronics:stm32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "PA1, PA3, PC4, PC5, PC0, PC1", - "default_aout": "PA4, PA5", - "default_din": "PB13, PB14, PB11, PB12, PE15, PB10, PE13, PE14", - "default_dout": "PC9, PC8, PA8, PA0, PB3, PD12", - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF1:pnum=GENERIC_F103VETX,upload_method=serialMethod", - "preview": "generic.png", - "source": "fx3u-14-WS3U.cpp", - "specs": { - "CPU": "STM32F103VCT6 ARM Cortex-M3 at 72MHz", - "RAM": "64 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "4", - "PWM Pins": "N/A", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "FX3U-24MR / DollaTek": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": "arduino-cli", - "core": "STMicroelectronics:stm32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "PA1, PA3, PC4, PC5, PC0, PC1", - "default_aout": "PA4, PA5", - "default_din": "PB13, PB14, PB11, PB12, PE15, PB10, PE13, PE14, PE11, PE12, PE9, PE10, PE7, PE8", - "default_dout": "PC9, PC8, PA8, PA0, PB3, PD12, PB15, PA7, PA6, PA2", - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:GenF1:pnum=GENERIC_F103VCTX,upload_method=serialMethod", - "preview": "generic.png", - "source": "fx3u-24MR-DT.cpp", - "specs": { - "CPU": "STM32F103VCT6 ARM Cortex-M3 at 72MHz", - "RAM": "64 KB", - "Flash": "256 KB", - "Digital Pins": "24", - "Analog Pins": "4", - "PWM Pins": "N/A", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" }, - "user_ain": "PA1, PA3, PC4, PC5, PC0, PC1", - "user_aout": "PA4, PA5", - "user_din": "PB13, PB14, PB11, PB12, PE15, PB10, PE13, PE14, PE11, PE12, PE9, PE10, PE7, PE8", - "user_dout": "PC9, PC8, PA8, PA0, PB3, PD12, PB15, PA7, PA6, PA2" - }, - "Iruino VEA": { - "board_manager_url": "https://raw.githubusercontent.com/VEA-SRL/IRUINO_Library/main/package_vea_index.json", - "compiler": "arduino-cli", - "core": "iruino:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "A0, A1", - "default_aout": "", - "default_din": "I0, I1, I2, I3, I4,I5, I6, I7", - "default_dout": "O0, O1, O2, O3, O4, O5, O6, O7", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "iruino:esp32:iruino", - "preview": "generic.png", - "source": "iruinoVEA.cpp", - "specs": { - "CPU": "ESP32-D0WDQ6", - "RAM": "520 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "Mkr WiFi": { - "compiler": "arduino-cli", - "core": "arduino:samd", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "A1, A2, A3, A4, A5, A6", - "default_aout": "6, 15", - "default_din": "0, 1, 2, 3, 4, 5", - "default_dout": "7, 8, 9, 10, 11, 12", - "define": "BOARD_WIFININA", - "platform": "arduino:samd:mkrwifi1010", - "preview": "generic.png", - "source": "mkr.cpp", - "specs": { - "CPU": "SAMD21 ARM Cortex-M0+ at 48MHz", - "RAM": "32 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "6", - "PWM Pins": "12", - "WiFi": "Yes", - "Bluetooth": "No", - "Ethernet": "No" + "cxx_flags": [ + "-std=gnu++17" + ], + "capabilities": { + "pinMapping": false, + "vppIo": false, + "modbusTcpRemote": true, + "ethercat": true, + "modbusTcpServer": true, + "opcuaServer": true, + "s7Server": true, + "debuggerTransports": ["modbus-serial"], + "pythonFunctionBlocks": true, + "arduinoApiCompletions": true, + "hasRuntimeStats": false, + "isInProcessSimulator": true, + "directUsbUpload": true } }, - "Mkr Zero": { - "compiler": "arduino-cli", - "core": "arduino:samd", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "A1, A2, A3, A4, A5, A6", - "default_aout": "6, 15", - "default_din": "0, 1, 2, 3, 4, 5", - "default_dout": "7, 8, 9, 10, 11, 12", - "platform": "arduino:samd:mkrzero", - "preview": "generic.png", - "source": "mkr.cpp", - "specs": { - "CPU": "SAMD21 ARM Cortex-M0+ at 48MHz", - "RAM": "32 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "6", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Nano 33 BLE": { - "compiler": "arduino-cli", - "core": "arduino:mbed_nano", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "15, 16, 17, 18, 19, 20, 21", - "default_aout": "9, 14", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 10, 11, 12, 13", - "platform": "arduino:mbed_nano:nano33ble", - "preview": "nano33iot.png", - "source": "nano_every.cpp", - "specs": { - "CPU": "nRF52840 ARM Cortex-M4 at 64MHz", - "RAM": "256 KB", - "Flash": "1 MB", - "Digital Pins": "14", - "Analog Pins": "8", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "Nano 33 IoT": { - "core": "arduino:samd", - "compiler": "arduino-cli", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "15, 16, 17, 18, 19, 20, 21", - "default_aout": "9, 14", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 10, 11, 12, 13", - "define": "BOARD_WIFININA", - "platform": "arduino:samd:nano_33_iot", - "preview": "nano33iot.png", - "source": "nano_every.cpp", - "specs": { - "CPU": "SAMD21 ARM Cortex-M0+ at 48MHz", - "RAM": "32 KB", - "Flash": "256 KB", - "Digital Pins": "14", - "Analog Pins": "8", - "PWM Pins": "12", - "WiFi": "Yes", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Nano Every": { - "compiler": "arduino-cli", - "core": "arduino:megaavr", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "15, 16, 17, 18, 19, 20, 21", - "default_aout": "9, 14", - "default_din": "2, 3, 4, 5, 6", - "default_dout": "7, 8, 10, 11, 12, 13", - "platform": "arduino:megaavr:nona4809", - "preview": "generic.png", - "source": "nano_every.cpp", - "specs": { - "CPU": "ATmega4809 at 20MHz", - "RAM": "6 KB", - "Flash": "48 KB", - "Digital Pins": "14", - "Analog Pins": "8", - "PWM Pins": "12", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Nano RP2040 Connect": { - "compiler": "arduino-cli", - "core": "arduino:mbed_nano", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "A1, A2, A3", - "default_aout": "14", - "default_din": "2, 3, 4, 5, 6, 7", - "default_dout": "8, 9, 10, 11, 12, 13", - "define": "BOARD_WIFININA", - "platform": "arduino:mbed_nano:nanorp2040connect", - "preview": "generic.png", - "source": "rp2040.cpp", - "specs": { - "CPU": "RP2040 ARM Cortex-M0+ at 133MHz", - "RAM": "264 KB", - "Flash": "16 MB", - "Digital Pins": "26", - "Analog Pins": "3", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "OpenPLC Runtime v4": { - "compiler": "openplc-compiler", - "preview": "generic.png" - }, "OpenPLC Runtime v3": { "compiler": "openplc-compiler", - "preview": "generic.png" - }, - "P1AM-100": { - "compiler": "arduino-cli", - "core": "arduino:samd", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "A1, A2, A5, A6", - "default_aout": "A0", - "default_din": "31, 0, 1, 2, 3, 4", - "default_dout": "32, 6, 7, 11, 12, 13, 14", - "platform": "arduino:samd:mkrzero", - "preview": "p1am100.png", - "source": "p1am.cpp", - "specs": { - "CPU": "SAMD21 ARM Cortex-M0+ at 48MHz", - "RAM": "32 KB", - "Flash": "256 KB", - "Digital Pins": "14+ (expansion modules)", - "Analog Pins": "6+ (expansion modules)", - "PWM Pins": "12+ (expansion modules)", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "Yes with Ethernet module" - } - }, - "P1AM-200": { - "board_manager_url": "https://raw.githubusercontent.com/facts-engineering/facts-engineering.github.io/master/package_productivity-P1AM-boardmanagermodule_index.json", - "compiler": "arduino-cli", - "core": "FACTS:samd", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "A1, A2, A5, A6", - "default_aout": "A0", - "default_din": "31, 0, 1, 2, 3, 4", - "default_dout": "32, 6, 7, 11, 12, 13, 14", - "extra_libraries": [], - "platform": "FACTS:samd:P1AM-200", - "preview": "p1am200.png", - "source": "p1am.cpp", - "specs": { - "CPU": "SAMD51P20 ARM Cortex-M4F at 120MHz", - "RAM": "256 KB", - "Flash": "2 MB", - "Digital Pins": "14+ (expansion modules)", - "Analog Pins": "6+ (expansion modules)", - "PWM Pins": "12+ (expansion modules)", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "Yes with Ethernet module" - } - }, - "Portenta Machine Control H7": { - "compiler": "arduino-cli", - "core": "arduino:mbed_portenta", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "0, 1, 2", - "default_aout": "0, 1, 2, 3", - "default_din": "DIN_READ_CH_PIN_00, DIN_READ_CH_PIN_01, DIN_READ_CH_PIN_02, DIN_READ_CH_PIN_03, DIN_READ_CH_PIN_04, DIN_READ_CH_PIN_05, DIN_READ_CH_PIN_06, DIN_READ_CH_PIN_07", - "default_dout": "0, 1, 2, 3, 4, 5, 6, 7", - "define": "BOARD_PORTENTA", - "platform": "arduino:mbed_portenta:envie_m7", "preview": "generic.png", - "source": "machine_control.cpp", - "specs": { - "CPU": "STM32H747 ARM Cortex-M7 at 480MHz", - "RAM": "8 MB", - "Flash": "16 MB", - "Digital Pins": "8", - "Analog Pins": "3", - "PWM Pins": "8", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" + "cxx_flags": [ + "-std=gnu++17" + ], + "capabilities": { + "pinMapping": false, + "vppIo": false, + "modbusTcpRemote": false, + "ethercat": false, + "modbusTcpServer": false, + "opcuaServer": false, + "s7Server": false, + "debuggerTransports": ["modbus-tcp"], + "pythonFunctionBlocks": true, + "arduinoApiCompletions": false, + "hasRuntimeStats": false, + "isInProcessSimulator": false, + "directUsbUpload": false } }, - "Raspberry Pi": { + "OpenPLC Runtime v4": { "compiler": "openplc-compiler", - "preview": "raspberry-pi.png" - }, - "Raspberry Pico": { - "board_manager_url": "https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json", - "compiler": "arduino-cli", - "core": "rp2040:rp2040", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "26, 27, 28", - "default_aout": "4,5", - "default_din": "6, 7, 8, 9, 10, 11, 12, 13", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21", - "extra_libraries": [], - "platform": "rp2040:rp2040:rpipico", "preview": "generic.png", - "source": "rp2040pico.cpp", - "specs": { - "CPU": "RP2040 ARM Cortex-M0+ at 133MHz", - "RAM": "264 KB", - "Flash": "16 MB", - "Digital Pins": "26", - "Analog Pins": "3", - "PWM Pins": "16", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Raspberry Pico 2": { - "board_manager_url": "https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json", - "compiler": "arduino-cli", - "core": "rp2040:rp2040", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "26, 27, 28", - "default_aout": "4,5", - "default_din": "6, 7, 8, 9, 10, 11, 12, 13", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21", - "extra_libraries": [], - "platform": "rp2040:rp2040:rpipico2", - "preview": "generic.png", - "source": "rp2040pico.cpp", - "specs": { - "CPU": "RP2350 ARM Cortex-M33 at 150MHz", - "RAM": "520 KB", - "Flash": "16 MB", - "Digital Pins": "26", - "Analog Pins": "3", - "PWM Pins": "16", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Raspberry Pico 2 (RISCV)": { - "arch": "riscv", - "board_manager_url": "https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json", - "compiler": "arduino-cli", - "core": "rp2040:rp2040", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "26, 27, 28", - "default_aout": "4,5", - "default_din": "6, 7, 8, 9, 10, 11, 12, 13", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21", - "extra_libraries": [], - "platform": "rp2040:rp2040:rpipico2:arch=riscv", - "preview": "generic.png", - "source": "rp2040pico.cpp", - "specs": { - "CPU": "RP2350 RISCV at 150MHz", - "RAM": "520 KB", - "Flash": "16 MB", - "Digital Pins": "26", - "Analog Pins": "3", - "PWM Pins": "16", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "Raspberry Pico W": { - "board_manager_url": "https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json", - "compiler": "arduino-cli", - "core": "rp2040:rp2040", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "26, 27, 28", - "default_aout": "4,5", - "default_din": "6, 7, 8, 9, 10, 11, 12, 13", - "default_dout": "14, 15, 16, 17, 18, 19, 20, 21", - "define": "BOARD_PICOW", - "extra_libraries": [], - "platform": "rp2040:rp2040:rpipicow", - "preview": "generic.png", - "source": "rp2040pico.cpp", - "specs": { - "CPU": "RP2040 ARM Cortex-M0+ at 133MHz", - "RAM": "264 KB", - "Flash": "16 MB", - "Digital Pins": "26", - "Analog Pins": "3", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "No", - "Ethernet": "No" - } - }, - "SEQUENT-ESP32-PI": { - "board_manager_url": "https://espressif.github.io/arduino-esp32/package_esp32_index.json", - "compiler": "arduino-cli", - "core": "esp32:esp32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "cxx_flags": ["-MMD", "-c"], - "default_ain": "34, 35", - "default_aout": "25", - "default_din": "27, 32", - "default_dout": "12, 13, 14, 15", - "define": "BOARD_ESP32", - "extra_libraries": [], - "platform": "esp32:esp32:esp32doit-devkit-v1", - "preview": "generic.png", - "source": "sequent_esp32.cpp", - "specs": { - "CPU": "ESP32-D0WDQ6", - "RAM": "520 KB", - "Flash": "4 MB", - "Digital Pins": "34", - "Analog Pins": "18", - "PWM Pins": "16", - "WiFi": "Yes", - "Bluetooth": "Yes", - "Ethernet": "No" - } - }, - "STM32-F446ZET (NUCLEO)": { - "board_manager_url": "https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json", - "compiler": "arduino-cli", - "core": "STMicroelectronics:stm32", - "c_flags": ["-MMD", "-c", "-Wno-incompatible-pointer-types"], - "default_ain": "PA0, PA1, PA4, PA5, PA6, PA7", - "default_aout": "PB0, PB1", - "default_din": "PA8, PA11, PA12, PB3, PB4, PB5, PB8, PB9", - "default_dout": "PB10, PB12, PB13, PB14, PB15, PC13, PC14, PC15", - "define": "BOARD_STM32_F446ZET_NUCLEO", - "extra_libraries": [], - "platform": "STMicroelectronics:stm32:Nucleo_144:pnum=NUCLEO_F446ZE", - "preview": "generic.png", - "source": "stm32_f446zet_nucleo.cpp", - "specs": { - "CPU": "STM32F446ZET6 ARM Cortex-M4 at 180MHz", - "RAM": "128 KB", - "Flash": "512 KB", - "Digital Pins": "16", - "Analog Pins": "6", - "PWM Pins": "16", - "WiFi": "No", - "Bluetooth": "No", - "Ethernet": "No" + "cxx_flags": [ + "-std=gnu++17" + ], + "capabilities": { + "pinMapping": false, + "vppIo": false, + "modbusTcpRemote": true, + "ethercat": true, + "modbusTcpServer": true, + "opcuaServer": true, + "s7Server": true, + "debuggerTransports": ["websocket"], + "pythonFunctionBlocks": true, + "arduinoApiCompletions": false, + "hasRuntimeStats": true, + "isInProcessSimulator": false, + "directUsbUpload": false } } } diff --git a/resources/sources/hal/arduino_opta.cpp b/resources/sources/hal/arduino_opta.cpp index 50f379c25..3fc7c8685 100644 --- a/resources/sources/hal/arduino_opta.cpp +++ b/resources/sources/hal/arduino_opta.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino Opta diff --git a/resources/sources/hal/controllino_maxi.cpp b/resources/sources/hal/controllino_maxi.cpp index ad3478020..8622f3878 100644 --- a/resources/sources/hal/controllino_maxi.cpp +++ b/resources/sources/hal/controllino_maxi.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for CONTROLLINO MAXI see https://www.controllino.com/wp-content/uploads/2021/03/CONTROLLINO-MAXI-Pinout.pdf diff --git a/resources/sources/hal/controllino_maxi_automation.cpp b/resources/sources/hal/controllino_maxi_automation.cpp index 9810b75da..d7c1452e4 100644 --- a/resources/sources/hal/controllino_maxi_automation.cpp +++ b/resources/sources/hal/controllino_maxi_automation.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for CONTROLLINO MAXI Automation see https://www.controllino.com/wp-content/uploads/2021/03/CONTROLLINO-MAXI-Automation-Pinout.pdf diff --git a/resources/sources/hal/controllino_mega.cpp b/resources/sources/hal/controllino_mega.cpp index 9ca132658..bc38397ac 100644 --- a/resources/sources/hal/controllino_mega.cpp +++ b/resources/sources/hal/controllino_mega.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for CONTROLLINO MEGA see https://www.controllino.com/wp-content/uploads/2021/03/CONTROLLINO-MEGA-Pinout.pdf diff --git a/resources/sources/hal/controllino_micro.cpp b/resources/sources/hal/controllino_micro.cpp index 831c96564..ef09ac911 100644 --- a/resources/sources/hal/controllino_micro.cpp +++ b/resources/sources/hal/controllino_micro.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" /* OpenPLC HAL for CONTROLLINO MICRO diff --git a/resources/sources/hal/controllino_mini.cpp b/resources/sources/hal/controllino_mini.cpp index 227156471..ac09fa349 100644 --- a/resources/sources/hal/controllino_mini.cpp +++ b/resources/sources/hal/controllino_mini.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for CONTROLLINO MINI see https://www.controllino.com/wp-content/uploads/2021/03/CONTROLLINO-MINI-Pinout.pdf diff --git a/resources/sources/hal/edge_control.cpp b/resources/sources/hal/edge_control.cpp index f3812b0dd..1897acb3b 100644 --- a/resources/sources/hal/edge_control.cpp +++ b/resources/sources/hal/edge_control.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" #include diff --git a/resources/sources/hal/esp32.cpp b/resources/sources/hal/esp32.cpp index 476b2ced1..038ed1308 100644 --- a/resources/sources/hal/esp32.cpp +++ b/resources/sources/hal/esp32.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //#include "driver/ledc.h" // OpenPLC HAL for ESP32 boards diff --git a/resources/sources/hal/esp8266.cpp b/resources/sources/hal/esp8266.cpp index 9fb941285..428b9aa7f 100644 --- a/resources/sources/hal/esp8266.cpp +++ b/resources/sources/hal/esp8266.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for ESP8266 boards diff --git a/resources/sources/hal/fx3u-14-WS3U.cpp b/resources/sources/hal/fx3u-14-WS3U.cpp index 4fac2944f..46e7d4ddf 100644 --- a/resources/sources/hal/fx3u-14-WS3U.cpp +++ b/resources/sources/hal/fx3u-14-WS3U.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" // OpenPLC HAL for FX3U-14 Clone / WS3U-14Mx // 2024 by Dieter Lambrecht diff --git a/resources/sources/hal/fx3u-14.cpp b/resources/sources/hal/fx3u-14.cpp index 4876a843e..22d6706ab 100644 --- a/resources/sources/hal/fx3u-14.cpp +++ b/resources/sources/hal/fx3u-14.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for STM32F411CE boards (blackpill) /******************PINOUT CONFIGURATION************************** diff --git a/resources/sources/hal/fx3u-24MR-DT.cpp b/resources/sources/hal/fx3u-24MR-DT.cpp index ca1537faf..5426445e7 100644 --- a/resources/sources/hal/fx3u-24MR-DT.cpp +++ b/resources/sources/hal/fx3u-24MR-DT.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" // OpenPLC HAL for FX3U-24MR Clone / Seller: Dollatek over Amazon // 2024 by Dieter Lambrecht diff --git a/resources/sources/hal/giga.cpp b/resources/sources/hal/giga.cpp index 93c320cbe..dbddebe9d 100644 --- a/resources/sources/hal/giga.cpp +++ b/resources/sources/hal/giga.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino Giga diff --git a/resources/sources/hal/iruinoVEA.cpp b/resources/sources/hal/iruinoVEA.cpp index 93ee1436d..ce087c79d 100644 --- a/resources/sources/hal/iruinoVEA.cpp +++ b/resources/sources/hal/iruinoVEA.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" #include "Display.h" //OpenPLC HAL for Iruino boards diff --git a/resources/sources/hal/jaguar.cpp b/resources/sources/hal/jaguar.cpp index 4af0b6cd1..ac5d40629 100644 --- a/resources/sources/hal/jaguar.cpp +++ b/resources/sources/hal/jaguar.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" #include #include diff --git a/resources/sources/hal/machine_control.cpp b/resources/sources/hal/machine_control.cpp index dfcf25436..c2ede0158 100644 --- a/resources/sources/hal/machine_control.cpp +++ b/resources/sources/hal/machine_control.cpp @@ -5,7 +5,7 @@ extern "C" { #include "Arduino.h" #include #include "Wire.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" using namespace machinecontrol; diff --git a/resources/sources/hal/mega_due.cpp b/resources/sources/hal/mega_due.cpp index f1e331408..48bbed2ff 100644 --- a/resources/sources/hal/mega_due.cpp +++ b/resources/sources/hal/mega_due.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" // Disable PWM logs from the PWM Controller lib #define _PWM_LOGLEVEL_ 0 diff --git a/resources/sources/hal/mkr.cpp b/resources/sources/hal/mkr.cpp index b30e72092..e4a1cb26e 100644 --- a/resources/sources/hal/mkr.cpp +++ b/resources/sources/hal/mkr.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino MKR products diff --git a/resources/sources/hal/nano_every.cpp b/resources/sources/hal/nano_every.cpp index 299f74717..cd6712845 100644 --- a/resources/sources/hal/nano_every.cpp +++ b/resources/sources/hal/nano_every.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino Nano form factor (Nano Every, Nano 33 BLE, Nano 33 IoT) diff --git a/resources/sources/hal/p1am.cpp b/resources/sources/hal/p1am.cpp index 87419d6e6..2a039e8c2 100644 --- a/resources/sources/hal/p1am.cpp +++ b/resources/sources/hal/p1am.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for AutomationDirect P1AM PLC diff --git a/resources/sources/hal/rp2040.cpp b/resources/sources/hal/rp2040.cpp index 4bc064cd4..984e4dff3 100644 --- a/resources/sources/hal/rp2040.cpp +++ b/resources/sources/hal/rp2040.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino Nano RP2040 diff --git a/resources/sources/hal/rp2040pico.cpp b/resources/sources/hal/rp2040pico.cpp index 9e19d9d73..4b608e6b6 100644 --- a/resources/sources/hal/rp2040pico.cpp +++ b/resources/sources/hal/rp2040pico.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" #include "RP2040_PWM.h" //OpenPLC HAL for Raspberry Pi Pico/Pico W with the RP2040 diff --git a/resources/sources/hal/sequent_esp32.cpp b/resources/sources/hal/sequent_esp32.cpp index 78efdd47f..a988e794e 100644 --- a/resources/sources/hal/sequent_esp32.cpp +++ b/resources/sources/hal/sequent_esp32.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for SEQUENT MICROSYSTEMS ESP32-PI boards diff --git a/resources/sources/hal/stm32_f103cb.cpp b/resources/sources/hal/stm32_f103cb.cpp index 9eac38bf2..26d14e055 100644 --- a/resources/sources/hal/stm32_f103cb.cpp +++ b/resources/sources/hal/stm32_f103cb.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for STM32F103CB boards (bluepill) /******************PINOUT CONFIGURATION************************** diff --git a/resources/sources/hal/stm32_f411ce.cpp b/resources/sources/hal/stm32_f411ce.cpp index 4299bb05b..25d3f8947 100644 --- a/resources/sources/hal/stm32_f411ce.cpp +++ b/resources/sources/hal/stm32_f411ce.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for STM32F411CE boards (blackpill) /******************PINOUT CONFIGURATION************************** diff --git a/resources/sources/hal/stm32_f446zet_nucleo.cpp b/resources/sources/hal/stm32_f446zet_nucleo.cpp index 445ca54b7..67517c4c1 100644 --- a/resources/sources/hal/stm32_f446zet_nucleo.cpp +++ b/resources/sources/hal/stm32_f446zet_nucleo.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for STM32F411CE boards (blackpill) /******************PINOUT CONFIGURATION************************** diff --git a/resources/sources/hal/uno_leonardo_nano_micro_zero.cpp b/resources/sources/hal/uno_leonardo_nano_micro_zero.cpp index 98f83810b..0adfae052 100644 --- a/resources/sources/hal/uno_leonardo_nano_micro_zero.cpp +++ b/resources/sources/hal/uno_leonardo_nano_micro_zero.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" #if defined(__SAM3X8E__) || defined(__SAMD21G18A__) #include "SAMD_PWM.h" diff --git a/resources/sources/hal/uno_q.cpp b/resources/sources/hal/uno_q.cpp index d466e8bbf..8b43ee6a3 100644 --- a/resources/sources/hal/uno_q.cpp +++ b/resources/sources/hal/uno_q.cpp @@ -4,7 +4,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino Uno Q (Zephyr-based) diff --git a/resources/sources/hal/uno_r4.cpp b/resources/sources/hal/uno_r4.cpp index c7dbbb9af..227d6e2fe 100644 --- a/resources/sources/hal/uno_r4.cpp +++ b/resources/sources/hal/uno_r4.cpp @@ -3,7 +3,7 @@ extern "C" { #include "openplc.h" } #include "Arduino.h" -#include "../examples/Baremetal/defines.h" +#include "defines.h" //OpenPLC HAL for Arduino Uno R4 diff --git a/scripts/download-binaries.ts b/scripts/download-binaries.ts index 5ca6f91fb..b0318c183 100644 --- a/scripts/download-binaries.ts +++ b/scripts/download-binaries.ts @@ -1,5 +1,5 @@ /** - * Download external tool binaries (xml2st, matiec) from GitHub Releases. + * Download external tool binaries (xml2st, strucpp) from GitHub Releases. * * Usage: * ts-node scripts/download-binaries.ts [--platform ] [--arch ] [--force] @@ -22,12 +22,11 @@ interface ToolEntry { interface BinaryVersions { xml2st: ToolEntry - matiec: ToolEntry + strucpp: ToolEntry } interface CacheMetadata { xml2st: string - matiec: string platform: string arch: string } @@ -42,7 +41,6 @@ type Arch = 'x64' | 'arm64' const ROOT_DIR = path.resolve(__dirname, '..') const VERSIONS_FILE = path.join(ROOT_DIR, 'binary-versions.json') const RESOURCES_DIR = path.join(ROOT_DIR, 'resources') -const MATIEC_LIB_DIR = path.join(RESOURCES_DIR, 'sources', 'MatIEC', 'lib') function binDir(platform: Platform, arch: Arch): string { return path.join(RESOURCES_DIR, 'bin', platform, arch) @@ -114,14 +112,20 @@ function needsXml2st(versions: BinaryVersions, cached: CacheMetadata | null, pla return false } -function needsMatiec(versions: BinaryVersions, cached: CacheMetadata | null, platform: Platform, arch: Arch): boolean { - const dir = binDir(platform, arch) - const isWindows = platform === 'win32' - - const iec2cPath = path.join(dir, isWindows ? 'iec2c.exe' : 'iec2c') - - if (!fs.existsSync(iec2cPath)) return true - if (!cached || cached.matiec !== versions.matiec.version) return true +function needsStrucpp(versions: BinaryVersions): boolean { + // strucpp is `npm install`-ed into `node_modules/`, so npm's own + // `package.json` is the canonical source of truth for what's + // installed. Re-fetch only when the package isn't installed or + // its version doesn't match the pin — no parallel metadata cache. + const expected = versions.strucpp.version.replace(/^v/, '') + const pkgJsonPath = path.join(ROOT_DIR, 'node_modules', 'strucpp', 'package.json') + if (!fs.existsSync(pkgJsonPath)) return true + try { + const installed = JSON.parse(fs.readFileSync(pkgJsonPath, 'utf-8')) + if (installed.version !== expected) return true + } catch { + return true + } return false } @@ -129,7 +133,6 @@ function needsMatiec(versions: BinaryVersions, cached: CacheMetadata | null, pla function writeCache(versions: BinaryVersions, platform: Platform, arch: Arch): void { const data: CacheMetadata = { xml2st: versions.xml2st.version, - matiec: versions.matiec.version, platform, arch, } @@ -242,64 +245,40 @@ async function downloadXml2st( } // --------------------------------------------------------------------------- -// matiec download and extraction +// strucpp download and extraction // --------------------------------------------------------------------------- -async function downloadMatiec( - tool: ToolEntry, - platform: Platform, - arch: Arch, - targetBinDir: string, -): Promise { - const isWindows = platform === 'win32' - const ext = isWindows ? 'zip' : 'tar.gz' - const url = `https://github.com/${tool.repository}/releases/download/${tool.version}/matiec-${platform}-${arch}.${ext}` +async function downloadStrucpp(tool: ToolEntry): Promise { + // The npm tarball is platform-independent (pure TypeScript + C++ headers) + const version = tool.version.replace(/^v/, '') + const url = `https://github.com/${tool.repository}/releases/download/${tool.version}/strucpp-${version}.tgz` - console.log(` Downloading matiec ${tool.version} for ${platform}-${arch}...`) - const tmpDir = fs.mkdtempSync(path.join(RESOURCES_DIR, '.tmp-matiec-')) + console.log(` Downloading strucpp ${tool.version}...`) + const tmpDir = fs.mkdtempSync(path.join(RESOURCES_DIR, '.tmp-strucpp-')) try { - const archivePath = path.join(tmpDir, `matiec.${ext}`) - await downloadToFile(url, archivePath) - - const extractDir = path.join(tmpDir, 'extracted') - if (isWindows) { - extractZip(archivePath, extractDir) - } else { - extractTarGz(archivePath, extractDir) - } - - const extractedToolDir = path.join(extractDir, 'matiec') - - // Copy iec2c binary - const iec2cName = isWindows ? 'iec2c.exe' : 'iec2c' - const iec2cSrc = path.join(extractedToolDir, iec2cName) - const iec2cDest = path.join(targetBinDir, iec2cName) - fs.copyFileSync(iec2cSrc, iec2cDest) - if (!isWindows) { - fs.chmodSync(iec2cDest, 0o755) - } - - // Copy iec2iec binary if present - const iec2iecName = isWindows ? 'iec2iec.exe' : 'iec2iec' - const iec2iecSrc = path.join(extractedToolDir, iec2iecName) - if (fs.existsSync(iec2iecSrc)) { - const iec2iecDest = path.join(targetBinDir, iec2iecName) - fs.copyFileSync(iec2iecSrc, iec2iecDest) - if (!isWindows) { - fs.chmodSync(iec2iecDest, 0o755) - } - } - - // Copy lib/ to resources/sources/MatIEC/lib/ - // Only do this once (for the first platform/arch downloaded), since lib/ is platform-independent - const libSrc = path.join(extractedToolDir, 'lib') - if (fs.existsSync(libSrc)) { - rmrf(MATIEC_LIB_DIR) - copyRecursive(libSrc, MATIEC_LIB_DIR) - } - - console.log(` matiec ${tool.version} installed.`) + const tgzPath = path.join(tmpDir, 'strucpp.tgz') + await downloadToFile(url, tgzPath) + + // Install into node_modules via npm. In dev (`npm run dev`), + // the compiler reads runtime headers from `node_modules/strucpp/ + // src/runtime/include/` and bundled `.stlib` archives from + // `node_modules/strucpp/libs/` directly. In packaged builds, + // electron-builder's `extraResources` config copies those two + // directories into `Resources/strucpp/` of the final app — see + // `electron-builder.json` and the dev/packaged path branching + // in `backend/editor/compiler/compiler-module.ts` and + // `backend/editor/library-manager/library-manager-module.ts`. + // We don't mirror the install into `release/app/node_modules` + // because electron-builder walks `release/app/package.json`'s + // dependency tree and prunes anything not listed there from the + // asar, regardless of whether the files exist on disk. + console.log(` Installing strucpp ${tool.version} into node_modules...`) + execSync(`npm install "${tgzPath}" --no-save`, { + cwd: ROOT_DIR, + stdio: 'pipe', + }) + console.log(` strucpp ${tool.version} installed.`) } finally { rmrf(tmpDir) } @@ -326,10 +305,10 @@ async function main(): Promise { const cached = force ? null : getCachedMetadata(platform, arch) const downloadXml2stNeeded = force || needsXml2st(versions, cached, platform, arch) - const downloadMatiecNeeded = force || needsMatiec(versions, cached, platform, arch) + const downloadStrucppNeeded = force || needsStrucpp(versions) - if (!downloadXml2stNeeded && !downloadMatiecNeeded) { - console.log(`[download-binaries] Binaries up to date for ${platform}-${arch}, skipping.`) + if (!downloadXml2stNeeded && !downloadStrucppNeeded) { + console.log(`[download-binaries] All tools up to date, skipping.`) return } @@ -339,10 +318,11 @@ async function main(): Promise { console.log(` xml2st ${versions.xml2st.version} already installed, skipping.`) } - if (downloadMatiecNeeded) { - await downloadMatiec(versions.matiec, platform, arch, targetBinDir) + // strucpp is platform-independent — only download once regardless of platform/arch + if (downloadStrucppNeeded) { + await downloadStrucpp(versions.strucpp) } else { - console.log(` matiec ${versions.matiec.version} already installed, skipping.`) + console.log(` strucpp ${versions.strucpp.version} already installed, skipping.`) } writeCache(versions, platform, arch) diff --git a/src/App.tsx b/src/App.tsx index 063ce3364..a4cfdddf0 100644 --- a/src/App.tsx +++ b/src/App.tsx @@ -1,57 +1,71 @@ import '@xyflow/react/dist/style.css' import 'tailwindcss/tailwind.css' import './backend/shared/styles/globals.css' +// Monaco language + theme registrations (`openplc-dark` / `openplc-light`, +// ST / IL / Python LanguageConfigurations). Imported here as a +// side-effect at app boot so EVERY Monaco editor in the app — body +// editor, variables text-mode editor, future LSP-driven views — sees +// the registered themes regardless of mount order. Previously this +// import lived only inside the body editor's index.tsx, which meant +// any editor that mounted first (e.g. variables text-mode opened +// without the body editor) saw Monaco's default vs-dark theme. +import './frontend/components/_features/[workspace]/editor/monaco/configs' import { useEffect } from 'react' import { AppLayout } from './frontend/components/_templates/app-layout' -import { - AdditionalFunctionBlocks, - ArduinoFunctionBlocks, - Arithmetic, - BitShift, - Bitwise, - CharacterString, - CommunicationBlocks, - Comparison, - Jaguar, - MQTT, - Numerical, - P1AM, - Selection, - SequentMicrosystemsModules, - StandardFunctionBlocks, - Time, - TypeConversion, -} from './frontend/data/library' import { StartScreen } from './frontend/screens/start-screen' import { WorkspaceScreen } from './frontend/screens/workspace-screen' +import { bootStLsp } from './frontend/services/st-lsp/boot' import { openPLCStoreBase, useOpenPLCStore } from './frontend/store' +import { stlibsToSystemLibraries } from './frontend/utils/stlib-to-system-library' import { editorPorts, setProjectPath, setRuntimeIpAddress } from './middleware/editor-platform' import { PlatformProvider } from './middleware/shared/providers' -// Initialize system libraries at module load time (before first render) -openPLCStoreBase - .getState() - .libraryActions.setSystemLibraries([ - AdditionalFunctionBlocks, - ArduinoFunctionBlocks, - CommunicationBlocks, - Jaguar, - MQTT, - P1AM, - SequentMicrosystemsModules, - StandardFunctionBlocks, - Arithmetic, - BitShift, - Bitwise, - CharacterString, - Comparison, - Numerical, - Selection, - Time, - TypeConversion, - ]) +/** + * Load every installed library (bundled + user-installed) at startup + * and dispatch the parsed `SystemLibrary` shape into the Zustand + * library slice. + * + * Runs as a top-level promise so libraries hydrate as early as + * possible — usually before the first render that consumes them, but + * the store starts with an empty `libraries.system` array regardless + * and the library tree just renders progressively as entries arrive. + * Errors bubble up to the console / dev tools; we don't fall back to + * a hardcoded set because the .stlib files are the canonical source + * of truth for library content. + */ +const hydrateLibraries = () => { + // Two parallel calls: archives carry the full POU lists for the + // tree builder, listInstalled carries the bundled flag (the + // archive shape doesn't). Both feed the same slice so the tree + // and the manager stay in sync. + Promise.all([editorPorts.library.loadAll(), editorPorts.library.listInstalled()]) + .then(([archives, installed]) => { + const actions = openPLCStoreBase.getState().libraryActions + actions.setSystemLibraries(stlibsToSystemLibraries(archives)) + actions.setBundledLibraryNames(installed.filter((l) => l.bundled).map((l) => l.name)) + }) + .catch((err) => { + + console.error('Failed to load .stlib libraries:', err) + }) +} +hydrateLibraries() +// Reload the in-memory pool whenever the main process reports an +// install/uninstall/CDN change. Subscriber lives outside React to +// catch events fired before any component mounts. +editorPorts.library.onLibrariesChanged(() => hydrateLibraries()) + +// Pre-warm the STruC++ LSP worker so the first ST POU opens with +// completion + diagnostics already streaming. `bootStLsp` returns +// null when the capability flag is off (web build before its +// adapter lands, jsdom test envs, …). Lazy-import monaco-editor +// to avoid pulling its top-level side effects into modules that +// only need the boot wrapper. +void import('monaco-editor').then((monaco) => { + bootStLsp(editorPorts, monaco) +}) export default function App() { const { diff --git a/src/__architecture__/validate.ts b/src/__architecture__/validate.ts index 964fcef1a..6b5991604 100644 --- a/src/__architecture__/validate.ts +++ b/src/__architecture__/validate.ts @@ -148,6 +148,13 @@ function getLayer(filePath: string): LayerName | null { // Middleware layers if (rel.startsWith('middleware/shared/ports/')) return 'ports' if (rel.startsWith('middleware/shared/providers/')) return 'provider' + // Pure utilities that need to be reachable from any layer (store, + // services, hooks, components, adapters, backend) live here. + // Architecturally treated as part of the `utils` layer — same rule + // set, but the physical path is under middleware/shared/ to make + // openplc-web parity explicit (this folder is byte-identical + // between repos). + if (rel.startsWith('middleware/shared/utils/')) return 'utils' if (rel.match(/^middleware\/adapters\/[^/]+\/components\//)) return 'adapter-components' if (rel.startsWith('middleware/adapters/')) return 'adapters' diff --git a/src/__tests__/platform-context.test.tsx b/src/__tests__/platform-context.test.tsx index bab0685f5..773e2170d 100644 --- a/src/__tests__/platform-context.test.tsx +++ b/src/__tests__/platform-context.test.tsx @@ -40,6 +40,9 @@ const testPorts: PlatformPorts = { window: createStubPort(), accelerator: createStubPort(), theme: createStubPort(), + versionControl: createStubPort(), + navigation: createStubPort(), + library: createStubPort(), capabilities: EDITOR_CAPABILITIES, } diff --git a/src/backend/editor/compiler/compiler-module.spec.ts b/src/backend/editor/compiler/compiler-module.spec.ts index 8c293bb41..b2224bb1f 100644 --- a/src/backend/editor/compiler/compiler-module.spec.ts +++ b/src/backend/editor/compiler/compiler-module.spec.ts @@ -3,6 +3,13 @@ import { CompilerModule } from './compiler-module' jest.mock('electron', () => ({ app: { getPath: jest.fn().mockReturnValue('/tmp/mock-user-data'), + // In dev (the branch tests exercise — `isPackaged` is undefined/falsy + // through this mock), strucppRuntimeDir resolves under + // `/node_modules/strucpp/src/runtime/include`; any + // non-empty string works for the type-asserting tests. + getAppPath: jest.fn().mockReturnValue('/tmp/mock-app-root'), + isPackaged: false, + getVersion: jest.fn().mockReturnValue('0.0.0-test'), }, dialog: { showSaveDialog: jest.fn().mockResolvedValue({ filePath: '/tmp/mock-save-path' }), @@ -42,7 +49,7 @@ describe('CompilerModule', () => { expect(typeof compilerModule.arduinoCliConfigurationFilePath).toBe('string') expect(Array.isArray(compilerModule.arduinoCliBaseParameters)).toBe(true) expect(typeof compilerModule.xml2stBinaryPath).toBe('string') - expect(typeof compilerModule.iec2cBinaryPath).toBe('string') + expect(typeof compilerModule.strucppRuntimeDir).toBe('string') }) it('getHostHardwareInfo should return a string containing hardware info', () => { diff --git a/src/backend/editor/compiler/compiler-module.ts b/src/backend/editor/compiler/compiler-module.ts index 08af2d45f..25e65826a 100644 --- a/src/backend/editor/compiler/compiler-module.ts +++ b/src/backend/editor/compiler/compiler-module.ts @@ -1,6 +1,7 @@ import { exec, spawn } from 'node:child_process' -import { promises as fs } from 'node:fs' -import { cp, mkdir, readFile, writeFile } from 'node:fs/promises' +import crypto, { createHash } from 'node:crypto' +import { existsSync, promises as fs } from 'node:fs' +import { cp, mkdir, readdir, readFile, stat, writeFile } from 'node:fs/promises' import type { IncomingMessage } from 'node:http' import https from 'node:https' import os from 'node:os' @@ -8,11 +9,78 @@ import path from 'node:path' import { join } from 'node:path' import { promisify } from 'node:util' +// strucpp is loaded lazily because it uses ESM features (import.meta) that are +// incompatible with Jest's CJS transform — see `backend/shared/library/strucpp-runtime`. +// Only the `CompileError` type leaks into this module's surface (via the +// `handleOutputData` callback) — every other strucpp interaction goes through +// the shared `runProgramBuildPipeline`. +type StrucppCompileError = import('strucpp').CompileError + +import { + composeVerificationProject, + libraryBuildFromTranspiledSt, + prepareXmlForLibraryBuild, +} from '@root/backend/shared/library/build-pipeline' +import { buildKnownPous } from '@root/backend/shared/library/program-build-helpers' +import { runProgramBuildPipeline } from '@root/backend/shared/library/program-build-pipeline' +import { loadStrucpp } from '@root/backend/shared/library/strucpp-runtime' +import type { KnownPou } from '@root/backend/shared/utils/PLC/split-program-st' + +/** + * Shared bridge contract between `compileLibrary` and its inner + * `runVerificationCompile` step. Both paths talk to the same + * runtime API and library-resolution helper. `loadEnabledArchives` + * resolves project-enabled library names to parsed `.stlib` + * archives — bundled libs are always-included, user-installed + * subset is filtered by name, missing-but-enabled names come back + * for the caller to surface as a pre-compile error. The same call + * feeds the program build (`strucpp.compile`'s `libraries:` option) + * and the library build (`compileStlib`'s dependency list), so + * there's exactly one resolution path and no chance of the program + * compile seeing a different library set than the verification + * compile. + */ +type LibraryCompileBridge = { + makeRuntimeApiRequest: ( + ipAddress: string, + jwtToken: string, + endpoint: string, + responseParser?: (data: string) => T, + ) => Promise<{ success: true; data?: T } | { success: false; error: string }> + loadEnabledArchives: (enabledNames: string[]) => { archives: unknown[]; missing: string[] } +} + +type LibraryVerificationBridge = LibraryCompileBridge + +/** + * Project data with the optional C++ POU sidecar attached. The base + * PLCProjectData type doesn't carry C++ POUs because they're an + * editor-side editor-only artefact; we splice them in for the compile + * pipeline. Centralised here so the cast appears once instead of + * inline at every read site. + */ +type ProjectDataWithCppPous = PLCProjectData & { + originalCppPous?: CppPouDataCode[] +} + +/** + * Post-build PLC start retry loop bounds. Why these numbers: + * - 5000 ms total: longer than the slowest STOP transition observed + * end-to-end (worst case ~3 s on a Pi 4 with EtherCAT teardown). + * - 150 ms poll: tight enough to feel responsive, loose enough to + * avoid hammering the runtime's unix socket. + * If the runtime ABI changes the STOP transition pattern (e.g. adds + * an explicit "ready for START" event), retire this loop. + */ +const POST_BUILD_START_TIMEOUT_MS = 5000 +const POST_BUILD_START_POLL_INTERVAL_MS = 150 + +import { assertPathContained } from '@root/backend/editor/utils/path-containment' import { getRuntimeHttpsOptions } from '@root/backend/editor/utils/runtime-https-config' import { generateEthercatConfig } from '@root/backend/shared/ethercat/generate-ethercat-config' import { validateEthercatConfig } from '@root/backend/shared/ethercat/validate-ethercat-config' import type { DeviceConfiguration, DevicePin } from '@root/backend/shared/types/PLC/devices' -import type { PLCProjectData } from '@root/backend/shared/types/PLC/open-plc' +import type { PLCProject, PLCProjectData } from '@root/backend/shared/types/PLC/open-plc' import { type CppPouData as CppPouDataCode, generateCBlocksCode, @@ -22,19 +90,23 @@ import { generateCBlocksHeader, } from '@root/backend/shared/utils/cpp/generateCBlocksHeader' import { generateModbusMasterConfig } from '@root/backend/shared/utils/modbus/generate-modbus-master-config' +import { validatePathId } from '@root/backend/shared/utils/path-safety' import { XmlGenerator } from '@root/backend/shared/utils/PLC/xml-generator' import { parsePlcStatus } from '@root/backend/shared/utils/plc-status' +import { generateVendorPluginConfig } from '@root/backend/shared/utils/vpp/generate-vendor-plugin-config' import { getErrorMessage } from '@root/frontend/utils/get-error-message' import { generateModbusSlaveConfig } from '@root/frontend/utils/modbus/generate-modbus-slave-config' import { generateOpcUaConfig, OpcUaConfigError } from '@root/frontend/utils/opcua' import { generateS7CommConfig } from '@root/frontend/utils/s7comm' -import { app as electronApp, dialog } from 'electron' +import type { CompileLibraryResult } from '@root/middleware/shared/ports/types' +import { app as electronApp, dialog, MessageChannelMain } from 'electron' import type { MessagePortMain } from 'electron/main' import JSZip from 'jszip' +import type { PackageManifest } from '../package-manager' +import { PackageManagerModule } from '../package-manager' import { CreateXMLFile } from '../utils' import type { ArduinoCoreControl, HalsFile } from './types' -import { FormatMacAddress } from './utils/formatters' interface MethodsResult { success: boolean @@ -42,11 +114,40 @@ interface MethodsResult { } type HandleOutputDataCallback = (chunk: Buffer | string, logLevel?: 'info' | 'error') => void +/** + * Decode a `MessagePortMain` payload back to a string, handling the + * forms a Node `Buffer` survives V8's structured clone as: + * + * - `string` — passthrough. + * - `Uint8Array` / `ArrayBuffer` — typed-array decode (this is the + * shape Buffers ride as when the channel stays inside the main + * process; `.toString()` on a Uint8Array returns the comma- + * separated number list and was the cause of the `[verify] + * 67,111,109,…` console flood). + * - `{ type: 'Buffer', data: number[] }` — Electron's IPC + * serialisation form, same shape `decodeMessage` in the + * `compiler-adapter` already handles. + * - anything else — `String(...)` fallback. + */ +function decodePortMessage(raw: unknown): string { + if (typeof raw === 'string') return raw + if (raw instanceof Uint8Array) return new TextDecoder().decode(raw) + if (raw instanceof ArrayBuffer) return new TextDecoder().decode(new Uint8Array(raw)) + if (raw && typeof raw === 'object' && 'type' in raw) { + const obj = raw as Record + if (obj.type === 'Buffer' && Array.isArray(obj.data)) { + return new TextDecoder().decode(new Uint8Array(obj.data as number[])) + } + } + return String(raw) +} + type CompileArduinoProgramArgs = { boardTarget: string boardHalsContent: HalsFile[string] compilationPath: string handleOutputData: HandleOutputDataCallback + cleanBuild?: boolean } class CompilerModule { @@ -60,7 +161,7 @@ class CompilerModule { xml2stBinaryPath: string - iec2cBinaryPath: string + strucppRuntimeDir: string // ############################################################################ // =========================== Static properties ============================== @@ -93,7 +194,11 @@ class CompilerModule { ] // Runtime API polling configuration (important-comment) - static readonly COMPILATION_STATUS_TIMEOUT_MS = 5 * 60 * 1000 // 5 minutes (important-comment) + // 20 minutes — large projects (50+ POUs) on a Pi 4 can take 10–15 min + // to compile generated.cpp + generated_debug.cpp at -O1, so 5 min was + // cutting off legitimate builds. The runtime side keeps emitting status + // while alive; this is just an absolute ceiling. (important-comment) + static readonly COMPILATION_STATUS_TIMEOUT_MS = 20 * 60 * 1000 static readonly COMPILATION_STATUS_POLL_INTERVAL_MS = 1000 // 1 second (important-comment) constructor() { @@ -108,7 +213,7 @@ class CompilerModule { this.xml2stBinaryPath = this.#constructXml2stBinaryPath() - this.iec2cBinaryPath = this.#constructIec2cBinaryPath() + this.strucppRuntimeDir = this.#constructStrucppRuntimeDir() } // ############################################################################ @@ -179,8 +284,47 @@ class CompilerModule { return join(this.binaryDirectoryPath, 'xml2st', CompilerModule.HOST_PLATFORM === 'darwin' ? 'xml2st' : '') } - #constructIec2cBinaryPath(): string { - return join(this.binaryDirectoryPath, 'iec2c') + #constructStrucppRuntimeDir(): string { + // strucpp's runtime headers (`src/runtime/include/`) live in two + // places depending on whether we're running dev or a packaged app: + // + // - **Dev** (`npm run dev`): read from the root install at + // `node_modules/strucpp/src/runtime/include` — that's what + // `scripts/download-binaries.ts` populates via `npm install + // --no-save`. + // + // - **Packaged**: read from `process.resourcesPath/strucpp/ + // runtime/include` — copied there by electron-builder's + // `extraResources` config. We *cannot* read from the asar's + // own node_modules because electron-builder packs the asar + // based on `release/app/package.json`'s dependency tree and + // strucpp isn't a declared dep (the version is pinned in + // `binary-versions.json` instead), so the package gets pruned + // out of the asar entirely. + // + // arduino-cli still only ever sees the destination copy under + // `build/[target]/` after `copyStrucppRuntimeHeaders` runs. + if (electronApp.isPackaged) { + return join(process.resourcesPath, 'strucpp', 'runtime', 'include') + } + return join(electronApp.getAppPath(), 'node_modules', 'strucpp', 'src', 'runtime', 'include') + } + + /** + * Resolve a board target to the arduino-cli core ID + * (`arduino-cli core install` target — e.g. `arduino:avr`). + * + * Single source of truth: reads from `resources/sources/boards/ + * hals.json`, the same file the renderer's + * `bridge.getAvailableBoards()` exposes via `boardInfo.core`. + * Used internally by the library-project verification path so a + * future hals.json edit (rename, new board, version bump) + * propagates to verification automatically — without any code + * change here. + */ + async #getBoardCore(board: string): Promise { + const halsFileContent = await CompilerModule.readJSONFile(this.halsFilePath) + return halsFileContent[board]?.['core'] ?? null } async #getBoardRuntime(board: string) { @@ -189,7 +333,22 @@ class CompilerModule { return halsFileContent[board]['compiler'] } - // Board not found in hals.json or installed VPP packages + // Fallback: check installed VPP packages for the board + try { + const packageManager = new PackageManagerModule() + const installed = packageManager.listInstalled() + for (const pkg of installed) { + const manifest = packageManager.getInstalledPackageManifest(pkg.packageId) + if (!manifest) continue + for (const device of manifest.devices) { + if (device.name === board) { + return device.target.type === 'runtime-v4' ? 'openplc-compiler' : 'arduino-cli' + } + } + } + } catch { + // ignore package manager errors + } throw new Error(`Board "${board}" not found in hals.json or installed VPP packages`) } @@ -262,26 +421,13 @@ class CompilerModule { return { success: true, data: VersionString } } - async checkIec2cAvailability(): Promise> { - let binaryPath = this.iec2cBinaryPath - const executeCommand = promisify(exec) - - if (CompilerModule.HOST_PLATFORM === 'win32') { - // INFO: On Windows, we need to add the .exe extension to the binary path. - binaryPath += '.exe' - } - // INFO: We use the version command to check if the iec2c is available. - // INFO: If the command is not available, it will throw an error. - const { stdout, stderr } = await executeCommand(`"${binaryPath}" -v`) - if (stderr) { - throw new Error(`IEC2C not available: ${stderr}`) + checkStrucppAvailability(): MethodsResult { + try { + const { getVersion } = loadStrucpp() + return { success: true, data: getVersion() } + } catch { + throw new Error('STruC++ not available. Run "npm run setup:binaries" to install it.') } - - const firstLine = stdout.split('\n')[0] // Get the first line of the output - const lineAsArray = firstLine.split(' ') // Split the line by spaces - const version = lineAsArray[lineAsArray.length - 1] // The version is the last element in the array - - return { success: true, data: version } } async getArduinoInstalledCores() { @@ -317,15 +463,15 @@ class CompilerModule { projectFolderPath: string, boardTarget: string, ): Promise> { - // INFO: We don't need to check if the directories already exist, as mkdir with { recursive: true } will handle that. - // INFO: We will create a build directory (if it does not exist), a board-specific directory, and a source directory within the board directory. let result: MethodsResult = { success: false } const buildDirectory = join(projectFolderPath, 'build') const boardDirectory = join(buildDirectory, boardTarget) const sourceDirectory = join(boardDirectory, 'src') - // Create the directories recursively. - // INFO: We don't have to create the build directory separately + // Clean the board directory to remove stale files from previous builds + await fs.rm(boardDirectory, { recursive: true, force: true }) + + // Recreate the directories const results = await Promise.all([ mkdir(boardDirectory, { recursive: true }), mkdir(sourceDirectory, { recursive: true }), @@ -341,43 +487,94 @@ class CompilerModule { // INFO: This method is a placeholder for copying static files. async copyStaticFiles(compilationPath: string, boardTarget: string): Promise> { - let result: MethodsResult = { success: false } - let filesToCopy: Promise[] = [] + const sourceTargetFolderPath = join(compilationPath, 'src') const staticArduinoFilesPath = join(this.sourceDirectoryPath, 'arduino') const staticBaremetalFilesPath = join(this.sourceDirectoryPath, 'Baremetal') - const staticMatIECLibraryFilesPath = join(this.sourceDirectoryPath, 'MatIEC', 'lib') - const sourceTargetFolderPath = join(compilationPath, 'src') + const filesToCopy: Promise[] = [] if (boardTarget !== 'openplc-compiler') { - filesToCopy = [ + // Arduino targets: headers go flat next to the sketch (Baremetal.ino + // includes "iec_var.hpp" etc. directly). + // + // resources/sources/arduino/ also ships arduino_runtime_glue.{cpp,h}. + // The glue owns g_config and every helper that touches strucpp types, + // isolating them in a library translation unit that arduino-cli + // compiles WITHOUT the prelude. The .ino sketch therefore + // never has Arduino.h's macros (DEFAULT/HIGH/LOW/PI/B0..B7/…) and + // strucpp library struct member names in the same TU — eliminating + // the collisions that previously broke any project including OSCAT + // blocks. + filesToCopy.push( cp(staticArduinoFilesPath, sourceTargetFolderPath, { recursive: true }), - cp(staticMatIECLibraryFilesPath, join(sourceTargetFolderPath, 'lib'), { recursive: true }), + this.copyStrucppRuntimeHeaders(sourceTargetFolderPath), cp(staticBaremetalFilesPath, join(compilationPath, 'examples', 'Baremetal'), { recursive: true }), - ] + ) } else { - // INFO: If the board target is OpenPLC, we copy the MatIEC library files and C/C++ block templates. + // OpenPLC Runtime v4 target: headers go under strucpp_runtime/include/ + // — that's where the runtime's scripts/compile.sh expects them after + // extracting the upload zip into core/generated/. const cBlocksHeaderPath = join(this.sourceDirectoryPath, 'arduino', 'c_blocks.h') - const cBlocksCodePath = join(this.sourceDirectoryPath, 'Baremetal', 'c_blocks_code.cpp') - filesToCopy = [ - cp(staticMatIECLibraryFilesPath, join(sourceTargetFolderPath, 'lib'), { recursive: true }), + filesToCopy.push( + this.copyStrucppRuntimeHeaders(join(sourceTargetFolderPath, 'strucpp_runtime', 'include')), cp(cBlocksHeaderPath, join(sourceTargetFolderPath, 'c_blocks.h')), - cp(cBlocksCodePath, join(sourceTargetFolderPath, 'c_blocks_code.cpp')), - ] + ) } try { - // Implement the logic to copy static build files. - const results = await Promise.all(filesToCopy) - if (results.every((res) => res === undefined)) { - result = { success: true, data: 'Static build files available' } - } + await Promise.all(filesToCopy) + return { success: true, data: 'Static build files available' } } catch (error) { throw new Error(`Error copying static files: ${error as string}`) } + } - return result + /** + * Copy STruC++ C++ runtime headers to the target directory. + * These headers are downloaded by scripts/download-binaries.ts from the STruC++ release. + * Single recursive copy so any future subdirectory under + * resources/strucpp/runtime/include/ propagates without code change. + */ + private async copyStrucppRuntimeHeaders(targetDir: string): Promise { + const runtimeDir = this.strucppRuntimeDir + try { + await fs.access(runtimeDir) + } catch { + throw new Error( + `STruC++ runtime headers not found at ${runtimeDir}. Run "npm run setup:binaries" to download them.`, + ) + } + // Ensure the target directory exists. v4 passes a nested path + // (strucpp_runtime/include) that may not exist yet. + await fs.mkdir(targetDir, { recursive: true }) + await cp(runtimeDir, targetDir, { recursive: true }) + } + + + /** + * Mirror the bundled avr-libstdcpp headers into a stable no-space + * cache path so arduino-cli's compiler.cpp.extra_flags substitution + * doesn't trip on a path containing spaces (common on macOS Electron + * userData paths). + * + * The cache key includes the editor version, so an upgrade that + * ships new headers self-invalidates. A presence check on a sentinel + * file (cstdint, which has shipped since the avr-libstdcpp v1) keeps + * the steady-state cost to a single existsSync per compile. + */ + private async ensureAvrLibStdCppCache(): Promise { + const sourceDir = join(this.sourceDirectoryPath, 'avr-libstdcpp', 'include') + const cacheDir = join(os.tmpdir(), `openplc-avr-libstdcpp-${electronApp.getVersion()}`, 'include') + + const sentinel = join(cacheDir, 'cstdint') + if (existsSync(sentinel)) { + return cacheDir + } + + await fs.mkdir(cacheDir, { recursive: true }) + await cp(sourceDir, cacheDir, { recursive: true }) + return cacheDir } // +++++++++++++++++++++++++++ Compilation Methods +++++++++++++++++++++++++++++ @@ -405,7 +602,13 @@ class CompilerModule { handleOutputData: (chunk: Buffer | string, logLevel?: 'info' | 'error') => void, ) { return new Promise>((resolve, reject) => { - const executeCommand = this.#executeXml2st(['--generate-st', generatedXMLFilePath]) + // `--keep-structs` tells xml2st to emit user-defined STRUCT data + // types as native `TYPE name : STRUCT … END_STRUCT;` declarations + // instead of rewriting them as FUNCTION_BLOCKs (matiec's legacy + // workaround). Strucpp parses STRUCT natively and rejects the FB + // rewrite as a type-vs-instance mismatch — every program build in + // the editor targets strucpp now, so we always set the flag. + const executeCommand = this.#executeXml2st(['--generate-st', generatedXMLFilePath, '--keep-structs']) let stderrData = '' @@ -430,112 +633,106 @@ class CompilerModule { }) } - async handleTranspileSTtoC( - generatedSTFilePath: string, - handleOutputData: (chunk: Buffer | string, logLevel?: 'info' | 'error') => void, - ) { - // As the iec2c binary generates the C files in the same directory as the binary location, - // we need to set the target directory for the output files accordingly with the generated ST file path. - const targetDirectoryForOutput = join(generatedSTFilePath.replace('program.st', '')) - - let binaryPath = this.iec2cBinaryPath - if (CompilerModule.HOST_PLATFORM === 'win32') { - // INFO: On Windows, we need to add the .exe extension to the binary path. - binaryPath += '.exe' - } - - return new Promise>((resolve, reject) => { - const executeCommand = spawn(binaryPath, ['-f', '-p', '-i', '-l', generatedSTFilePath], { - cwd: targetDirectoryForOutput, - }) - - let stderrData = '' - - // INFO: We use the iec2c command to transpile the ST file to C. - executeCommand.stdout?.on('data', (data: Buffer) => { - handleOutputData(data) - }) - executeCommand.stderr?.on('data', (data: Buffer) => { - stderrData += data.toString() - }) - - executeCommand.on('close', (code) => { - if (code === 0) { - handleOutputData(`C files generated at: ${targetDirectoryForOutput}`, 'info') - resolve({ - success: true, - }) - } else { - reject(new Error(`iec2c process exited with code ${code}\n${stderrData}`)) - } - }) - }) - } - - async handleGenerateDebugFiles( + async handleCompileSTtoCpp( sourceTargetFolderPath: string, - handleOutputData: (chunk: Buffer | string, logLevel?: 'info' | 'error') => void, - ) { - const generatedSTFilePath = join(sourceTargetFolderPath, 'program.st') // Assuming the XML file is named 'program.st' - const generatedVARIABLESFilePath = join(sourceTargetFolderPath, 'VARIABLES.csv') // Assuming the VARIABLES file is named 'VARIABLES.csv' - - return new Promise>((resolve, reject) => { - const executeCommand = this.#executeXml2st(['--generate-debug', generatedSTFilePath, generatedVARIABLESFilePath]) - - let stderrData = '' - - // INFO: We use the xml2st command to generate debug files. - executeCommand.stdout?.on('data', (data: Buffer) => { - handleOutputData(data) - }) - executeCommand.stderr?.on('data', (data: Buffer) => { - stderrData += data.toString() - }) - - executeCommand.on('close', (code) => { - if (code === 0) { - handleOutputData(`Debug files generated at: ${sourceTargetFolderPath}`, 'info') - resolve({ - success: true, - }) - } else { - reject(new Error(`xml2st process exited with code ${code}\n${stderrData}`)) - } - }) + handleOutputData: ( + chunk: Buffer | string, + logLevel?: 'info' | 'error', + compileError?: StrucppCompileError, + ) => void, + options: { + hasCBlocks?: boolean + pous?: KnownPou[] + /** + * Pre-loaded `.stlib` archives — bundled libs plus the + * project-enabled subset. Resolved by the caller through + * `mainProcessBridge.loadEnabledArchives(enabledNames)` so the + * archive loading happens once and stays in the bridge layer + * where the library manager lives; the compiler is purely + * about feeding strucpp. Empty array = no libraries (not even + * bundled), which is intentional: the caller decides what's + * available. + */ + libraries: unknown[] + /** + * Names of libraries the project enables but the system pool + * doesn't currently have on disk. Surfaced as a pre-compile + * error so the user gets a clear "open the Library Manager" + * message instead of strucpp's per-symbol cascade. + */ + missingLibraries?: string[] + }, + ): Promise<{ md5Hash: string }> { + const stFilePath = join(sourceTargetFolderPath, 'program.st') + const stSource = await readFile(stFilePath, { encoding: 'utf8' }) + + handleOutputData('Compiling Structured Text to C++ with STruC++...', 'info') + + // Strucpp embeds the MD5 into the debug map so the editor can + // detect stale layouts without re-reading program.st. Computed + // here because `node:crypto` is Electron-only — the web wrapper + // computes the same hash via a portable implementation. + const md5 = crypto.createHash('md5').update(stSource).digest('hex') + + // Strucpp invocation + per-POU split + error formatting lives in + // `backend/shared/library/program-build-pipeline.ts` so the web + // edition's compile adapter can call the same logic. This + // wrapper is only responsible for the Electron-side bits: load + // the ST file off disk, pump pipeline output through the + // editor's IPC log channel, write each returned artefact to the + // project's build directory. + const result = runProgramBuildPipeline({ + source: stSource, + md5, + pous: options.pous ?? [], + libraries: options.libraries, + missingLibraries: options.missingLibraries ?? [], + hasCBlocks: options.hasCBlocks ?? false, }) - } - async handleGenerateGlueVars( - sourceTargetFolderPath: string, - handleOutputData: (chunk: Buffer | string, logLevel?: 'info' | 'error') => void, - ) { - const generatedLocatedVariablesFilePath = join(sourceTargetFolderPath, 'LOCATED_VARIABLES.h') + if (result.splitterFallbackMessage) { + handleOutputData(result.splitterFallbackMessage, 'info') + } + + if (!result.success) { + // Emit one structured log entry per error so the renderer's + // console can attach a click-to-open handler to each one. The + // formatted text is what the user sees; the third argument + // carries the raw `CompileError` (pouName / section / bodyLine + // / variableName / …) for navigation. We then throw a short + // marker so the outer catch posts only the high-level + // "STruC++ compilation failed" line — without re-dumping every + // error blob a second time through the catch's plain-message + // path. + handleOutputData('STruC++ compilation failed:', 'error') + for (const err of result.errors) { + handleOutputData(err.formatted, 'error', err.raw) + } + throw new Error('STruC++ compilation failed') + } - return new Promise>((resolve, reject) => { - const executeCommand = this.#executeXml2st(['--generate-gluevars', generatedLocatedVariablesFilePath]) + for (const warn of result.warnings) { + handleOutputData(warn.formatted, 'info', warn.raw) + } - let stderrData = '' + await Promise.all( + result.files.map((f) => + writeFile(join(sourceTargetFolderPath, f.name), f.content, { encoding: 'utf8' }), + ), + ) - executeCommand.stdout?.on('data', (data: Buffer) => { - handleOutputData(data) - }) - executeCommand.stderr?.on('data', (data: Buffer) => { - stderrData += data.toString() - }) + if (result.debugMapSummary) handleOutputData(result.debugMapSummary, 'info') + handleOutputData(`C++ files generated at: ${sourceTargetFolderPath}`, 'info') + handleOutputData(`Program MD5: ${result.md5Hash}`, 'info') - executeCommand.on('close', (code) => { - if (code === 0) { - handleOutputData(`Glue vars generated at: ${sourceTargetFolderPath}`, 'info') - resolve({ - success: true, - }) - } else { - reject(new Error(`xml2st process exited with code ${code}\n${stderrData}`)) - } - }) - }) + return { md5Hash: result.md5Hash } } + // Debug file generation and glue variable generation are no longer needed. + // STruC++ generates located variable descriptors (locatedVars[]) in the C++ output, + // and the Arduino sketch walks them dynamically for I/O binding. + // The debugger will be redesigned in Phase 4. + // TODO: This method is used to update the index of the Arduino core. // We should validate if this is necessary and if it works correctly. async handleCoreUpdateIndex(handleOutputData: HandleOutputDataCallback) { @@ -715,20 +912,21 @@ class CompilerModule { // === Directories and files paths === const devicesDirectoryPath = join(projectPath, 'devices') - const devicesConfigurationFilePath = join(devicesDirectoryPath, 'configuration.json') const devicesPinMappingFilePath = join(devicesDirectoryPath, 'pin-mapping.json') const buildTargetDirectoryPath = join(projectPath, 'build', boardTarget) const stProgramFilePath = join(buildTargetDirectoryPath, 'src', 'program.st') - const definitionsFilePath = join(buildTargetDirectoryPath, 'examples', 'Baremetal', 'defines.h') + // defines.h lives alongside arduino.cpp in src/. The HAL templates + // include it as plain "defines.h" so the file is found whether + // arduino-cli compiles the source in place or moves it into its + // sketch sandbox first. Avoids the directory-relative include + // that broke on paths with spaces and on VM shared-folder mounts. + const definitionsFilePath = join(buildTargetDirectoryPath, 'src', 'defines.h') // === Files contents that we need === const halsFileContent = await CompilerModule.readJSONFile(this.halsFilePath) - const { - communicationConfiguration: { modbusRTU, modbusTCP, communicationPreferences }, - } = await CompilerModule.readJSONFile(devicesConfigurationFilePath) const devicePinMapping = await CompilerModule.readJSONFile(devicesPinMappingFilePath) const stProgramFileContent = await readFile(stProgramFilePath, 'utf-8') @@ -768,56 +966,27 @@ class CompilerModule { DEFINES_CONTENT += `#define PROGRAM_MD5 "${buildMD5Hash}"` DEFINES_CONTENT += `\n\n` - // 3.2. Device Configuration - DEFINES_CONTENT += '//Comms Configuration\n' + // 3.2. Simulator communication defines + // + // Baremetal/Arduino-family targets used to emit a full //Comms + // Configuration block here, read from deviceConfigurationSchema's + // communicationConfiguration field. That schema is gone — Arduino + // targets will return as VPP packages and each package owns its + // own defines emission. The only target still emitting communication + // defines from the core compiler is the built-in simulator. if (boardRuntime === 'simulator') { // Simulator forces fixed Modbus RTU settings over emulated USART0. // On ATmega2560, Serial = USART0. avr8js bridges usart0. + DEFINES_CONTENT += '//Comms Configuration\n' DEFINES_CONTENT += '#define SIMULATOR_MODE\n' DEFINES_CONTENT += '#define MBSERIAL_IFACE Serial\n' DEFINES_CONTENT += '#define MBSERIAL_BAUD 115200\n' DEFINES_CONTENT += '#define MBSERIAL_SLAVE 1\n' - } else { - DEFINES_CONTENT += `#define MBSERIAL_IFACE ${modbusRTU.rtuInterface}\n` - DEFINES_CONTENT += `#define MBSERIAL_BAUD ${modbusRTU.rtuBaudRate}\n` - if (modbusRTU.rtuSlaveId !== null) DEFINES_CONTENT += `#define MBSERIAL_SLAVE ${modbusRTU.rtuSlaveId}\n` - if (modbusRTU.rtuRS485ENPin !== null) DEFINES_CONTENT += `#define MBSERIAL_TXPIN ${modbusRTU.rtuRS485ENPin}\n` - } - if (modbusTCP.tcpMacAddress !== null) - DEFINES_CONTENT += `#define MBTCP_MAC ${FormatMacAddress(modbusTCP.tcpMacAddress)}\n` - // OBS: This is giving us an empty string and this is being printed as a space - if (modbusTCP.tcpStaticHostConfiguration.ipAddress !== null) - DEFINES_CONTENT += `#define MBTCP_IP ${modbusTCP.tcpStaticHostConfiguration.ipAddress.replaceAll('.', ',')}\n` - if (modbusTCP.tcpStaticHostConfiguration.dns !== null) - DEFINES_CONTENT += `#define MBTCP_DNS ${modbusTCP.tcpStaticHostConfiguration.dns.replaceAll('.', ',')}\n` - if (modbusTCP.tcpStaticHostConfiguration.gateway !== null) - DEFINES_CONTENT += `#define MBTCP_GATEWAY ${modbusTCP.tcpStaticHostConfiguration.gateway.replaceAll('.', ',')}\n` - if (modbusTCP.tcpStaticHostConfiguration.subnet !== null) - DEFINES_CONTENT += `#define MBTCP_SUBNET ${modbusTCP.tcpStaticHostConfiguration.subnet.replaceAll('.', ',')}\n` - - if (communicationPreferences.enabledRTU || boardRuntime === 'simulator') { DEFINES_CONTENT += '#define MBSERIAL\n' DEFINES_CONTENT += '#define MODBUS_ENABLED\n' + DEFINES_CONTENT += `\n\n` } - if (communicationPreferences.enabledTCP) { - DEFINES_CONTENT += '#define MBTCP\n' - DEFINES_CONTENT += '#define MODBUS_ENABLED\n' - if (modbusTCP.tcpInterface === 'Wi-Fi') { - if (modbusTCP.tcpWifiSSID !== null) { - DEFINES_CONTENT += `#define MBTCP_SSID "${modbusTCP.tcpWifiSSID}"\n` - } - if (modbusTCP.tcpWifiPassword !== null) { - DEFINES_CONTENT += `#define MBTCP_PWD "${modbusTCP.tcpWifiPassword}"\n` - } - DEFINES_CONTENT += '#define MBTCP_WIFI\n' - } else { - DEFINES_CONTENT += '#define MBTCP_ETHERNET\n' - } - } - - DEFINES_CONTENT += `\n\n` - // INFO: If null, only the define value // 3.3. IO Config defines DEFINES_CONTENT += '//IO Config\n' @@ -898,34 +1067,9 @@ class CompilerModule { } } - async handlePatchGeneratedFiles(compilationPath: string, handleOutputData: HandleOutputDataCallback) { - const pousCFilePath = join(compilationPath, 'src', 'POUS.c') - const res0FilePath = join(compilationPath, 'src', 'Res0.c') - const config0FilePath = join(compilationPath, 'src', 'Config0.c') - - const pousCContent = await readFile(pousCFilePath, { encoding: 'utf8' }) - const patchedPousCContent = `#include "POUS.h"\n#include "Config0.h"\n\n${pousCContent}` - await writeFile(pousCFilePath, patchedPousCContent, { encoding: 'utf8' }) - - const res0FileContent = await readFile(res0FilePath, { encoding: 'utf8' }) - - const patchedRes0FileContent = res0FileContent.replaceAll('#include "POUS.c"', '#include "POUS.h"\n') - - await writeFile(res0FilePath, patchedRes0FileContent, { encoding: 'utf8' }) - handleOutputData('Required files patched', 'info') - - // Unity build: Rename .c files to .inc so Arduino build system doesn't compile them separately. - // These files are #included by glueVars.c as a single compilation unit to avoid - // duplicate static function definitions that cause binary size bloat. - const pousIncFilePath = join(compilationPath, 'src', 'POUS.inc') - const res0IncFilePath = join(compilationPath, 'src', 'Res0.inc') - const config0IncFilePath = join(compilationPath, 'src', 'Config0.inc') - - await fs.rename(pousCFilePath, pousIncFilePath) - await fs.rename(res0FilePath, res0IncFilePath) - await fs.rename(config0FilePath, config0IncFilePath) - handleOutputData('Files renamed to .inc for unity build', 'info') - } + // handlePatchGeneratedFiles is no longer needed. + // STruC++ generates clean C++ files (generated.cpp + generated.hpp) that don't require + // patching or unity build renaming. async handleGenerateArduinoCppFile(projectPath: string, boardTarget: string) { let result: MethodsResult = { success: false } @@ -947,7 +1091,7 @@ class CompilerModule { } async handleGenerateCBlocksHeader( - projectData: PLCProjectData & { originalCppPous?: CppPouDataCode[] }, + projectData: ProjectDataWithCppPous, sourceTargetFolderPath: string, handleOutputData: HandleOutputDataCallback, ) { @@ -975,7 +1119,7 @@ class CompilerModule { } async handleGenerateCBlocksCode( - projectData: PLCProjectData & { originalCppPous?: CppPouDataCode[] }, + projectData: ProjectDataWithCppPous, compilationPath: string, boardRuntime: string, handleOutputData: HandleOutputDataCallback, @@ -988,6 +1132,11 @@ class CompilerModule { } const cppPous = originalCppPous + // generateCBlocksCode now emits the full file (baseline + per-POU + // wrappers + user code), so we overwrite rather than append. The + // static Baremetal/c_blocks_code.cpp baseline is now redundant for + // projects with C++ POUs but stays as a benign empty unit for + // Arduino projects without any. const codeContent = generateCBlocksCode(cppPous) const codeFilePath = @@ -996,9 +1145,7 @@ class CompilerModule { : join(compilationPath, 'examples', 'Baremetal', 'c_blocks_code.cpp') try { - const existingContent = await readFile(codeFilePath, { encoding: 'utf8' }) - const updatedContent = existingContent + '\n' + codeContent - await writeFile(codeFilePath, updatedContent, { encoding: 'utf8' }) + await writeFile(codeFilePath, codeContent, { encoding: 'utf8' }) handleOutputData(`C blocks code file populated at: ${codeFilePath}`, 'info') } catch (error) { throw new Error(`Error writing c_blocks_code.cpp file: ${(error as Error).message}`) @@ -1009,10 +1156,31 @@ class CompilerModule { boardHalsContent, compilationPath, handleOutputData, + cleanBuild, }: CompileArduinoProgramArgs) { const baremetalPath = join(compilationPath, 'examples', 'Baremetal') - let buildProjectFlags = ['compile', '-v'] + // -j 0 — saturate every CPU core. arduino-cli's default is + // sequential compilation; with the codegen split (one TU per POU + // plus configuration.cpp + generated_debug.cpp) there are now + // many independent .cpp files in the library folder, so + // parallel compilation cuts wall-clock build time roughly + // proportional to core count. Per-file build caching is enabled + // by default — arduino-cli keys its cache on (sketch path, + // flags, board) under ~//arduino/sketches// + // and reuses .o files when their content hash matches. Together + // with the build-folder wipe at createBasicDirectories(), this + // gives the same edit-one-POU-rebuild-fast behaviour that the + // v4 runtime gets via ccache + make -j. + // + // --clean — invalidate arduino-cli's per-file cache for the + // selected sketch, forcing every TU to be recompiled from + // scratch. Wired to the "Clean build and upload" UI option. + let buildProjectFlags = ['compile', '-v', '-j', '0'] + if (cleanBuild) { + buildProjectFlags.push('--clean') + handleOutputData('Clean build requested — arduino-cli cache will be invalidated.', 'info') + } if (boardHalsContent['c_flags']) { buildProjectFlags = [ @@ -1023,10 +1191,30 @@ class CompilerModule { } if (boardHalsContent['cxx_flags']) { + const cxxFlags = [...boardHalsContent['cxx_flags']] + // AVR toolchains don't ship the C++ standard library (no + // , , etc.). We bundle a freestanding- + // libstdc++ port at resources/sources/avr-libstdcpp/include and + // pass it via -I. + // + // The original path can sit anywhere — Electron's user-data dir + // on macOS is `~/Library/Application Support//` and many + // users have spaces in their home path. arduino-cli builds the + // compile invocation by token-substituting compiler.cpp.extra_flags + // into a recipe and processing the result; quoted paths with + // embedded spaces have been known to confuse the substitution and + // break AVR builds. Mirror the headers into a known no-space + // cache path on first compile to sidestep that whole class of + // breakage. Versioned cache key so the editor self-invalidates + // on upgrades that ship new headers. + if (boardHalsContent['core']?.startsWith('arduino:avr')) { + const avrLibStdCppPath = await this.ensureAvrLibStdCppCache() + cxxFlags.push(`-I${avrLibStdCppPath}`) + } buildProjectFlags = [ ...buildProjectFlags, '--build-property', - `compiler.cpp.extra_flags=${boardHalsContent['cxx_flags'].map((f) => f).join(' ')}`, + `compiler.cpp.extra_flags=${cxxFlags.join(' ')}`, ] } @@ -1038,12 +1226,26 @@ class CompilerModule { ] } + // `upload.maximum_data_size` controls arduino-cli's post-link + // size check, not the linker memory map (that's `ld_flags`). + // For boards like the simulator that target a stock Arduino + // platform but emulate more RAM than the canonical SoC, we + // need to override both — otherwise the link succeeds but + // arduino-cli rejects the binary with "data section exceeds + // available space in board" because boards.txt still reports + // 8192 bytes for atmega2560. + if (typeof boardHalsContent['max_data_size'] === 'number') { + buildProjectFlags = [ + ...buildProjectFlags, + '--build-property', + `upload.maximum_data_size=${boardHalsContent['max_data_size']}`, + ] + } + buildProjectFlags = [ ...buildProjectFlags, '--library', - `${join(compilationPath, 'src')}`, // Basic libraries - '--library', - `${join(compilationPath, 'src', 'lib')}`, // Arduino libraries + `${join(compilationPath, 'src')}`, // STruC++ generated code + runtime headers '--export-binaries', // Export binaries '-b', boardHalsContent['platform'], // Board target @@ -1288,26 +1490,39 @@ class CompilerModule { return } - // Read the debug.c file generated by xml2st - const debugCPath = join(sourceTargetFolderPath, 'debug.c') - let debugContent: string + // Read STruC++'s debug-map.json (replaces MatIEC's debug.c). + // Generated by the codegen pipeline at compile time alongside + // generated.cpp / generated.hpp. + const debugMapPath = join(sourceTargetFolderPath, 'debug-map.json') + let debugMapContent: string try { - debugContent = await readFile(debugCPath, 'utf-8') + debugMapContent = await readFile(debugMapPath, 'utf-8') } catch { - handleOutputData('Warning: Could not read debug.c file. OPC-UA variable indices may not be resolved.', 'error') - debugContent = '' + handleOutputData( + 'Warning: Could not read debug-map.json. OPC-UA variable addresses may not be resolved.', + 'error', + ) + debugMapContent = '' } - // Get instances from Resources configuration for index resolution + // Get instances from Resources configuration for address resolution const instances = projectData.configuration.resource.instances.map((inst) => ({ name: inst.name, task: inst.task, program: inst.program, })) - // Generate the OPC-UA configuration - const opcuaJson: string | null = generateOpcUaConfig(projectData.servers, debugContent, instances) + // Generate the OPC-UA configuration. Field-level resolution + // failures (stale library-FB internals, renamed/deleted vars) + // surface as build warnings instead of aborting; the generator + // drops them and we forward each to the compile log. + const opcuaJson: string | null = generateOpcUaConfig( + projectData.servers, + debugMapContent, + instances, + (msg) => handleOutputData(msg, 'info'), + ) if (opcuaJson) { // Ensure conf directory exists @@ -1400,6 +1615,255 @@ class CompilerModule { } } + /** + * Handle VPP runtime-v4 package integration for the uploaded program. + * + * When the selected board is from an installed VPP package, this handler: + * 1. Generates conf/.json from the package's config_template.json + * merged with vendor screen data (hal-config, module-configuration, io-mapping) + * 2. Copies the plugin source directory (containing the Makefile and .c/.h files) + * into the source folder under vpp_plugin/ + * 3. Computes a SHA-256 checksum over all plugin source files and writes it to + * vpp_plugin/checksum.sha256 so the runtime's compile.sh can skip + * recompilation when the source hasn't changed. + * + * For non-VPP boards or VPP boards without the necessary HAL metadata, the + * relevant sub-steps are skipped. A header log is always emitted so the + * user can see whether VPP handling kicked in at all. + */ + async handleVendorPluginPackaging( + boardTarget: string, + normalizedProjectPath: string, + sourceTargetFolderPath: string, + handleOutputData: HandleOutputDataCallback, + ): Promise { + try { + const packageManager = new PackageManagerModule() + const installed = packageManager.listInstalled() + + let matchingPackagePath: string | null = null + let matchingDevice: PackageManifest['devices'][number] | null = null + + for (const pkg of installed) { + const manifest = packageManager.getInstalledPackageManifest(pkg.packageId) + if (!manifest) continue + const device = manifest.devices.find((d) => d.name === boardTarget) + if (device) { + matchingPackagePath = pkg.path + matchingDevice = device + break + } + } + + if (!matchingDevice || !matchingPackagePath) { + handleOutputData(`Board "${boardTarget}" is not from a VPP package, skipping VPP packaging`, 'info') + return + } + + if (matchingDevice.target.type !== 'runtime-v4') { + handleOutputData( + `VPP board "${boardTarget}" is not runtime-v4 (target=${matchingDevice.target.type}), skipping VPP packaging`, + 'info', + ) + return + } + + handleOutputData(`Detected VPP runtime-v4 board: ${boardTarget}`, 'info') + + // --- Step 1: Generate plugin config file --- + const configTemplateRelPath = matchingDevice.hal?.configTemplate + let pluginName = 'vendor_plugin' + + if (configTemplateRelPath) { + const configTemplatePath = join(matchingPackagePath, configTemplateRelPath) + let configTemplate: Record | null = null + try { + const templateRaw = await readFile(configTemplatePath, 'utf-8') + configTemplate = JSON.parse(templateRaw) as Record + } catch (err) { + handleOutputData( + `Failed to read VPP config template at ${configTemplateRelPath}: ${getErrorMessage(err)}`, + 'error', + ) + } + + if (configTemplate) { + // Read vendor screen data from the project's device configuration + const deviceConfigPath = join(normalizedProjectPath, 'devices', 'configuration.json') + let vendorScreenData: Record = {} + try { + const deviceConfigRaw = await readFile(deviceConfigPath, 'utf-8') + const deviceConfig = JSON.parse(deviceConfigRaw) as { vendorScreenData?: Record } + vendorScreenData = deviceConfig.vendorScreenData ?? {} + } catch { + // Device configuration may not exist yet — use empty vendor data + } + + // Pre-load each module's configScreen JSON so the (pure) + // generator can encode per-slot configuration bytes without + // touching the filesystem. + const rawModules = matchingDevice.moduleSystem?.modules ?? [] + const modules = await Promise.all( + rawModules.map(async (m) => { + let configScreenDefinition: unknown + const rel = (m as { configScreen?: string }).configScreen + if (rel) { + try { + const screenPath = join(matchingPackagePath, rel) + const raw = await readFile(screenPath, 'utf-8') + configScreenDefinition = JSON.parse(raw) + } catch (err) { + handleOutputData( + `Failed to load configScreen ${rel} for module ${m.id}: ${getErrorMessage(err)}`, + 'error', + ) + } + } + return { ...m, configScreenDefinition } + }), + ) + const finalConfig = generateVendorPluginConfig(configTemplate, vendorScreenData, modules) + + // configTemplate is supplied by the package author through + // their .vpp manifest. Without validation, plugin_name like + // "../../../etc/cron.d/runme" would be join-ed into a path + // outside confFolderPath and the editor would write user- + // controlled JSON to an arbitrary location. + const rawPluginName = (configTemplate.plugin_name as string | undefined) ?? 'vendor_plugin' + validatePathId(rawPluginName, 'configTemplate.plugin_name') + pluginName = rawPluginName + const confFolderPath = join(sourceTargetFolderPath, 'conf') + await mkdir(confFolderPath, { recursive: true }) + const configFilePath = join(confFolderPath, `${pluginName}.json`) + assertPathContained(confFolderPath, configFilePath, 'plugin config path') + await writeFile(configFilePath, JSON.stringify(finalConfig, null, 2), 'utf-8') + handleOutputData(`Generated conf/${pluginName}.json for VPP plugin`, 'info') + + // Generate vpp_plugins.conf so the runtime knows exactly which + // VPP plugin to load and where its compiled .so and config live. + // Format matches plugins.conf: name,path,enabled,type,config_path,venv_path + // The paths are the deterministic locations that compile.sh and the + // runtime's apply_vpp_plugin_conf() agree on. + const vppPluginsConfContent = + `${pluginName},./build/vpp/lib${pluginName}_plugin.so,1,1,./build/vpp/${pluginName}.json,\n` + const vppPluginsConfPath = join(sourceTargetFolderPath, 'vpp_plugins.conf') + await writeFile(vppPluginsConfPath, vppPluginsConfContent, 'utf-8') + handleOutputData('Generated vpp_plugins.conf', 'info') + } + } else { + handleOutputData('VPP board has no HAL configTemplate, skipping plugin config generation', 'info') + } + + // --- Step 2: Copy plugin source + generate checksum --- + const pluginEntryRelPath = matchingDevice.hal?.pluginEntry + if (!pluginEntryRelPath) { + handleOutputData('VPP board has no HAL pluginEntry, skipping plugin source upload', 'info') + return + } + + // The plugin source directory is the parent directory of pluginEntry. + // pluginEntryRelPath is supplied by the package manifest; without + // containment, an entry like `../../../etc` would resolve outside + // matchingPackagePath and the recursive-copy below would slurp + // arbitrary host files into the build's vpp_plugin directory. + const pluginSourceDir = join(matchingPackagePath, path.dirname(pluginEntryRelPath)) + try { + assertPathContained(matchingPackagePath, pluginSourceDir, 'matchingDevice.hal.pluginEntry') + } catch (err) { + handleOutputData(`Invalid VPP pluginEntry: ${getErrorMessage(err)}`, 'error') + return + } + let pluginSourceStat + try { + pluginSourceStat = await stat(pluginSourceDir) + } catch (err) { + handleOutputData( + `VPP plugin source directory not found at ${pluginEntryRelPath}: ${getErrorMessage(err)}`, + 'error', + ) + return + } + + if (!pluginSourceStat.isDirectory()) { + handleOutputData(`VPP plugin source path is not a directory: ${pluginEntryRelPath}`, 'error') + return + } + + const destPluginDir = join(sourceTargetFolderPath, 'vpp_plugin') + // Clean up any previous vpp_plugin directory from a prior build + try { + await fs.rm(destPluginDir, { recursive: true, force: true }) + } catch { + // Ignore — may not exist yet + } + + // Copy the plugin source, excluding files that are only useful in the editor + // (config_template.json is already turned into conf/.json, and + // requirements.txt is for Python-style plugins that don't apply here). + // Symlinks are rejected unconditionally: + // - they aren't useful inside a .vpp (the format ships a flat tree), + // - a self-referential or parent-pointing symlink would make this + // recursion unbounded, hanging the build, + // - and a symlink to outside matchingPackagePath would let a + // malicious package exfiltrate host files into the upload. + const EXCLUDE_FILES = new Set(['config_template.json', 'requirements.txt']) + const copiedFiles: string[] = [] + const collectAndCopy = async (sourceDir: string, destDir: string, relPath: string = ''): Promise => { + const entries = await readdir(sourceDir, { withFileTypes: true }) + for (const entry of entries) { + if (EXCLUDE_FILES.has(entry.name)) continue + if (entry.isSymbolicLink()) { + handleOutputData( + `Skipping symlink in VPP plugin source: ${relPath ? `${relPath}/` : ''}${entry.name}`, + 'info', + ) + continue + } + const sourcePath = join(sourceDir, entry.name) + const destPath = join(destDir, entry.name) + const relFilePath = relPath ? `${relPath}/${entry.name}` : entry.name + if (entry.isDirectory()) { + await mkdir(destPath, { recursive: true }) + await collectAndCopy(sourcePath, destPath, relFilePath) + } else if (entry.isFile()) { + await mkdir(destDir, { recursive: true }) + const content = await readFile(sourcePath) + await writeFile(destPath, content as unknown as Uint8Array) + copiedFiles.push(relFilePath) + } + } + } + + await mkdir(destPluginDir, { recursive: true }) + await collectAndCopy(pluginSourceDir, destPluginDir) + + if (copiedFiles.length === 0) { + handleOutputData('VPP plugin source directory contained no files to copy', 'info') + return + } + + // Compute SHA-256 over all copied files (sorted for determinism) + // Format: " \n" per file, then a final SHA-256 of that list + copiedFiles.sort() + const hash = createHash('sha256') + for (const relFile of copiedFiles) { + const fileContent = await readFile(join(destPluginDir, relFile)) + const fileHash = createHash('sha256').update(fileContent as unknown as Uint8Array).digest('hex') + hash.update(`${fileHash} ${relFile}\n`) + } + const combinedHash = hash.digest('hex') + await writeFile(join(destPluginDir, 'checksum.sha256'), combinedHash + '\n', 'utf-8') + + handleOutputData( + `Copied ${copiedFiles.length} VPP plugin source file(s) to vpp_plugin/ (checksum: ${combinedHash.slice(0, 12)}...)`, + 'info', + ) + } catch (error) { + const errorMessage = getErrorMessage(error) + handleOutputData(`Failed VPP plugin packaging: ${errorMessage}`, 'error') + } + } + /** * This will be the main entry point for the compiler module. * It will handle all the compilation process, will orchestrate the various steps involved in compiling a program. @@ -1415,6 +1879,14 @@ class CompilerModule { endpoint: string, responseParser?: (data: string) => T, ) => Promise<{ success: true; data?: T } | { success: false; error: string }> + /** + * Resolve a list of project-enabled library names to parsed + * `.stlib` archives. Bundled libraries are always-on and + * always included; each enabled user library is filtered in by + * name. Missing names (enabled but not installed) come back so + * the caller can abort with a clear error before strucpp runs. + */ + loadEnabledArchives: (enabledNames: string[]) => { archives: unknown[]; missing: string[] } }, ): Promise { // Start the main process port to communicate with the renderer process. @@ -1424,7 +1896,16 @@ class CompilerModule { _mainProcessPort.postMessage({ logLevel: 'info', message: 'Starting compilation process...' }) // INFO: We assume the first argument is the project path, // INFO: the second argument is the board target, and the third argument is the project data. - const [projectPath, boardTarget, boardCore, compileOnly, projectData, runtimeIpAddress, runtimeJwtToken] = args as [ + const [ + projectPath, + boardTarget, + boardCore, + compileOnly, + projectData, + runtimeIpAddress, + runtimeJwtToken, + cleanBuild, + ] = args as [ string, string, string | null, @@ -1432,6 +1913,7 @@ class CompilerModule { PLCProjectData, string | null, string | null, + boolean | undefined, ] const boardRuntime = await this.#getBoardRuntime(boardTarget) // Get the board runtime from the hals.json file @@ -1463,6 +1945,7 @@ class CompilerModule { // VPP boards with runtime-v4 target type use openplc-compiler and are also v4-capable const isRuntimeV3 = boardTarget === 'OpenPLC Runtime v3' const isRuntimeV4 = boardRuntime === 'openplc-compiler' && !isRuntimeV3 + const hasServers = projectData.servers && projectData.servers.length > 0 const hasRemoteDevices = projectData.remoteDevices && projectData.remoteDevices.length > 0 @@ -1484,12 +1967,12 @@ class CompilerModule { _mainProcessPort.postMessage({ logLevel: 'info', message: 'Checking tools availability...' }) try { - const [arduinoCliCheckResult, iec2cCheckResult] = await Promise.all([ + const [arduinoCliCheckResult, strucppCheckResult] = await Promise.all([ this.checkArduinoCliAvailability(), - this.checkIec2cAvailability(), + Promise.resolve(this.checkStrucppAvailability()), ]) _mainProcessPort.postMessage({ - message: `Arduino CLI available at version ${arduinoCliCheckResult.data}\nIEC2C available at version ${iec2cCheckResult.data}`, + message: `Arduino CLI available at version ${arduinoCliCheckResult.data}\nSTruC++ available at version ${strucppCheckResult.data}`, }) } catch (_error) { _mainProcessPort.postMessage({ @@ -1564,76 +2047,32 @@ class CompilerModule { return } - // Step 4: Generate C code from ST - const generatedSTFilePath = join(sourceTargetFolderPath, 'program.st') // Assuming the ST file is named 'program.st' + // Step 4: Compile ST to C++ with STruC++ (replaces iec2c + debug + glue generation) try { - await this.handleTranspileSTtoC(generatedSTFilePath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) - } catch (error) { - _mainProcessPort.postMessage({ - logLevel: 'error', - message: typeof error === 'string' ? error : error instanceof Error ? error.message : JSON.stringify(error), - }) - _mainProcessPort.postMessage({ - logLevel: 'error', - message: 'Stopping compilation process.', - }) - _mainProcessPort.close() - return - } - - // Step 5: Generate debug files - try { - await this.handleGenerateDebugFiles(sourceTargetFolderPath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) - } catch (error) { - _mainProcessPort.postMessage({ - logLevel: 'error', - message: typeof error === 'string' ? error : error instanceof Error ? error.message : JSON.stringify(error), - }) - _mainProcessPort.postMessage({ - logLevel: 'error', - message: 'Stopping compilation process.', - }) - _mainProcessPort.close() - return - } - - try { - const fs = await import('fs/promises') - const programStPath = join(sourceTargetFolderPath, 'program.st') - const programStContent = await fs.readFile(programStPath, 'utf-8') - const md5Pattern = /\(\*DBG:char md5\[\] = "([a-fA-F0-9]{32})";?\*\)/ - const match = programStContent.match(md5Pattern) - - if (match && match[1]) { - buildMD5Hash = match[1] - _mainProcessPort.postMessage({ - logLevel: 'info', - message: `Extracted MD5 hash from program.st: ${buildMD5Hash}`, - }) - } else { - _mainProcessPort.postMessage({ - logLevel: 'warn', - message: 'Could not extract MD5 from program.st, continuing without MD5', - }) - buildMD5Hash = null - } - } catch (error) { - _mainProcessPort.postMessage({ - logLevel: 'error', - message: `Error extracting MD5 from program.st: ${error as string}`, - }) - buildMD5Hash = null - } - - // Step 6: Generate glue vars - try { - await this.handleGenerateGlueVars(sourceTargetFolderPath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) + const hasCBlocks = ((projectData as ProjectDataWithCppPous).originalCppPous?.length ?? 0) > 0 + // Hand the POU list to handleCompileSTtoCpp so the splitter can + // segment program.st into per-POU files and surface errors with + // POU-relative location data. + const knownPous = buildKnownPous(projectData.pous) + // Resolve project-enabled libraries to parsed `.stlib` archives. + // Bundled libs are always-on; missing names (enabled but not + // installed) abort the compile early in handleCompileSTtoCpp + // with a clear "open the Library Manager" message. + const enabledLibraryNames = (projectData.libraries ?? []).map((ref) => ref.name) + const { archives: libraries, missing: missingLibraries } = + mainProcessBridge.loadEnabledArchives(enabledLibraryNames) + const { md5Hash } = await this.handleCompileSTtoCpp( + sourceTargetFolderPath, + (data, logLevel, compileError) => { + _mainProcessPort.postMessage({ + logLevel, + message: data, + ...(compileError ? { compileError } : {}), + }) + }, + { hasCBlocks, pous: knownPous, libraries, missingLibraries }, + ) + buildMD5Hash = md5Hash } catch (error) { _mainProcessPort.postMessage({ logLevel: 'error', @@ -1721,6 +2160,19 @@ class CompilerModule { // so users who only want the generated sources miss runtime configuration. if (isRuntimeV4) { try { + // defines.h next to generated.cpp — picked up by the v4 runtime + // shim (core/strucpp_runtime/runtime_v4_entry.cpp) via + // __has_include so strucpp_program_md5 reflects the program + // currently loaded. FC 0x45 (DEBUG_GET_MD5) returns this so the + // editor can verify it's debugging the matching source. Macro + // name matches the Arduino sketch's PROGRAM_MD5 convention. + if (buildMD5Hash) { + await writeFile( + join(sourceTargetFolderPath, 'defines.h'), + `#pragma once\n// Program MD5\n#define PROGRAM_MD5 "${buildMD5Hash}"\n`, + { encoding: 'utf8' }, + ) + } await this.cleanConfFolder(sourceTargetFolderPath, (data, logLevel) => { _mainProcessPort.postMessage({ logLevel, message: data }) }) @@ -1739,6 +2191,15 @@ class CompilerModule { await this.handleGenerateEthercatConfig(sourceTargetFolderPath, projectData, (data, logLevel) => { _mainProcessPort.postMessage({ logLevel, message: data }) }) + // VPP plugin config + source copy for boards whose target is runtime-v4 + await this.handleVendorPluginPackaging( + boardTarget, + normalizedProjectPath, + sourceTargetFolderPath, + (data, logLevel) => { + _mainProcessPort.postMessage({ logLevel, message: data }) + }, + ) } catch (error) { _mainProcessPort.postMessage({ logLevel: 'error', @@ -1836,7 +2297,11 @@ class CompilerModule { { hostname: runtimeIpAddress, port: 8443, - path: '/api/upload-file', + // ?clean=1 tells the runtime to wipe build/ and ccache + // before compiling — wired to the "Clean build and + // upload" UI option. Older runtimes that don't know + // about the flag simply ignore it. + path: cleanBuild ? '/api/upload-file?clean=1' : '/api/upload-file', method: 'POST', headers: { 'Content-Type': `multipart/form-data; boundary=${boundary}`, @@ -1869,20 +2334,20 @@ class CompilerModule { }) } - const pollCompilationStatus = async () => { + const pollCompilationStatus = async (): Promise<'SUCCESS' | 'FAILED' | 'TIMEOUT' | 'ERROR'> => { let lastLogCount = 0 - let shouldContinuePolling = true + let finalResult: 'SUCCESS' | 'FAILED' | 'TIMEOUT' | 'ERROR' | null = null const startTime = Date.now() const timeout = CompilerModule.COMPILATION_STATUS_TIMEOUT_MS const pollInterval = CompilerModule.COMPILATION_STATUS_POLL_INTERVAL_MS - while (shouldContinuePolling) { + while (finalResult === null) { if (Date.now() - startTime > timeout) { _mainProcessPort.postMessage({ logLevel: 'error', - message: 'Compilation status polling timed out after 5 minutes.', + message: 'Compilation status polling timed out after 20 minutes.', }) - shouldContinuePolling = false + finalResult = 'TIMEOUT' continue } @@ -1902,7 +2367,7 @@ class CompilerModule { logLevel: 'error', message: `Error polling compilation status: ${result.error}`, }) - shouldContinuePolling = false + finalResult = 'ERROR' continue } @@ -1925,26 +2390,92 @@ class CompilerModule { logLevel: 'info', message: `Compilation completed successfully (exit code: ${exit_code ?? 0}).`, }) - shouldContinuePolling = false + finalResult = 'SUCCESS' } else if (status === 'FAILED') { _mainProcessPort.postMessage({ logLevel: 'error', message: `Compilation failed (exit code: ${exit_code ?? 1}).`, }) - shouldContinuePolling = false + finalResult = 'FAILED' } } catch (pollError) { _mainProcessPort.postMessage({ logLevel: 'error', message: `Error polling compilation status: ${pollError instanceof Error ? pollError.message : String(pollError)}`, }) - shouldContinuePolling = false + finalResult = 'ERROR' } } + return finalResult + } + + /** + * Send START to the runtime after a successful build, retrying on + * COMMAND:BUSY (the runtime returns BUSY while its STOP transition + * thread is still finishing the unload — plugin cleanup, pthread_join, + * etc.). Any non-BUSY error response (invalid program, compilation + * error, etc.) stops the retry immediately. + */ + const startPlcAfterBuildWithRetry = async (): Promise => { + const maxWaitMs = POST_BUILD_START_TIMEOUT_MS + const pollIntervalMs = POST_BUILD_START_POLL_INTERVAL_MS + const deadline = Date.now() + maxWaitMs + + while (Date.now() < deadline) { + const result = await mainProcessBridge.makeRuntimeApiRequest( + runtimeIpAddress, + runtimeJwtToken, + '/api/start-plc', + (data: string) => { + const parsed = JSON.parse(data) as { status?: string } + return (parsed.status ?? '').trim() + }, + ) + + if (!result.success) { + _mainProcessPort.postMessage({ + logLevel: 'error', + message: `Failed to start PLC: ${result.error}`, + }) + return + } + + const rawStatus = result.data ?? '' + if (rawStatus.includes('START:OK') || rawStatus.includes('ALREADY_RUNNING')) { + _mainProcessPort.postMessage({ + logLevel: 'info', + message: 'PLC started.', + }) + return + } + + // Only BUSY is retryable — everything else is a real error from the runtime. + if (!rawStatus.includes('BUSY')) { + _mainProcessPort.postMessage({ + logLevel: 'error', + message: `Failed to start PLC: ${rawStatus || 'unknown response'}`, + }) + return + } + + await new Promise((resolve) => setTimeout(resolve, pollIntervalMs)) + } + + _mainProcessPort.postMessage({ + logLevel: 'warning', + message: `PLC did not start within ${maxWaitMs}ms — runtime remained busy. Press Play to retry.`, + }) } pollCompilationStatus() - .then(async () => { + .then(async (compileStatus) => { + // Auto-start the PLC on successful build. The runtime no longer + // restarts on its own after an upload, so the editor owns the + // retry-on-BUSY policy and the error reporting. + if (compileStatus === 'SUCCESS' && !compileOnly) { + await startPlcAfterBuildWithRetry() + } + if (runtimeIpAddress && runtimeJwtToken) { try { const statusResult = await mainProcessBridge.makeRuntimeApiRequest( @@ -2031,25 +2562,7 @@ class CompilerModule { return } - // Step 7: Handle patch files - try { - await this.handlePatchGeneratedFiles(compilationPath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) - } catch (error) { - _mainProcessPort.postMessage({ - logLevel: 'error', - message: typeof error === 'string' ? error : error instanceof Error ? error.message : JSON.stringify(error), - }) - _mainProcessPort.postMessage({ - logLevel: 'error', - message: 'Stopping compilation process.', - }) - _mainProcessPort.close() - return - } - - // Step 8: Handle core installation + // Step 5: Handle core installation _mainProcessPort.postMessage({ logLevel: 'info', message: 'Handling core installation...' }) try { await this.handleCoreInstallation(boardCore, (data, logLevel) => { @@ -2133,6 +2646,7 @@ class CompilerModule { boardTarget, boardHalsContent: halsContent[boardTarget], compilationPath, + cleanBuild: cleanBuild ?? false, handleOutputData: (data, logLevel) => { _mainProcessPort.postMessage({ logLevel, message: data }) }, @@ -2149,6 +2663,19 @@ class CompilerModule { // Step 13: Upload program to board or load into simulator if (boardRuntime === 'simulator') { + // `compileOnly: true` callers (the library-project verification + // step today; a future "Build only" on simulator) want to + // confirm the compile succeeded without any side effect on the + // simulator process. Emitting the firmware path makes the + // renderer load the .hex into the running simulator; emitting + // "Loading firmware into simulator..." advertises an action + // that isn't happening. Skip both for compile-only callers. + if (compileOnly) { + _mainProcessPort.postMessage({ logLevel: 'info', message: 'Compilation successful.' }) + _mainProcessPort.postMessage({ closePort: true }) + _mainProcessPort.close() + return + } // For simulator targets, send the HEX firmware path back to the renderer. // Derive the build sub-directory from the platform FQBN (e.g. "arduino:avr:mega" → "arduino.avr.mega") // so it stays in sync with the hals.json entry. @@ -2202,6 +2729,9 @@ class CompilerModule { async compileForDebugger( args: Array, _mainProcessPort: MessagePortMain, + mainProcessBridge: { + loadEnabledArchives: (enabledNames: string[]) => { archives: unknown[]; missing: string[] } + }, ): Promise { _mainProcessPort.start() @@ -2220,9 +2750,9 @@ class CompilerModule { }) try { - const iec2cCheckResult = await this.checkIec2cAvailability() + const strucppCheckResult = this.checkStrucppAvailability() _mainProcessPort.postMessage({ - message: `IEC2C available at version ${iec2cCheckResult.data}`, + message: `STruC++ available at version ${strucppCheckResult.data}`, }) } catch (_error) { _mainProcessPort.postMessage({ @@ -2289,45 +2819,24 @@ class CompilerModule { return } - const generatedSTFilePath = join(sourceTargetFolderPath, 'program.st') - try { - await this.handleTranspileSTtoC(generatedSTFilePath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) - } catch (error) { - _mainProcessPort.postMessage({ - logLevel: 'error', - message: typeof error === 'string' ? error : error instanceof Error ? error.message : JSON.stringify(error), - }) - _mainProcessPort.postMessage({ - logLevel: 'error', - message: 'Stopping debug compilation process.', - }) - _mainProcessPort.close() - return - } - - try { - await this.handleGenerateDebugFiles(sourceTargetFolderPath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) - } catch (error) { - _mainProcessPort.postMessage({ - logLevel: 'error', - message: typeof error === 'string' ? error : error instanceof Error ? error.message : JSON.stringify(error), - }) - _mainProcessPort.postMessage({ - logLevel: 'error', - message: 'Stopping debug compilation process.', - }) - _mainProcessPort.close() - return - } - + // Compile ST to C++ with STruC++ (replaces iec2c + debug + glue generation) try { - await this.handleGenerateGlueVars(sourceTargetFolderPath, (data, logLevel) => { - _mainProcessPort.postMessage({ logLevel, message: data }) - }) + const hasCBlocks = ((projectData as ProjectDataWithCppPous).originalCppPous?.length ?? 0) > 0 + const knownPous = buildKnownPous(projectData.pous) + const enabledLibraryNames = (projectData.libraries ?? []).map((ref) => ref.name) + const { archives: libraries, missing: missingLibraries } = + mainProcessBridge.loadEnabledArchives(enabledLibraryNames) + await this.handleCompileSTtoCpp( + sourceTargetFolderPath, + (data, logLevel, compileError) => { + _mainProcessPort.postMessage({ + logLevel, + message: data, + ...(compileError ? { compileError } : {}), + }) + }, + { hasCBlocks, pous: knownPous, libraries, missingLibraries }, + ) } catch (error) { _mainProcessPort.postMessage({ logLevel: 'error', @@ -2389,5 +2898,487 @@ class CompilerModule { _mainProcessPort.close() }, 25) } + + /** + * Build a `.stlib` archive from a Library Project on disk. + * + * The orchestration intentionally mirrors `compileProgram`'s + * stream-back pattern: status / error messages travel over the + * MessagePort, and a final `libraryBuildResult` field on the + * close-port message carries the structured outcome the adapter + * surfaces to the renderer. + * + * Flow: + * 1. Read `/library.json` from disk (the manifest + * tab's surgical save has already written the live buffer + * ahead of this call — Phase 5). + * 2. `prepareXmlForLibraryBuild` validates the manifest and + * emits the XML xml2st consumes. Manifest errors fail fast + * here without spawning xml2st. + * 3. Persist plc.xml under `/build/library/src/` + * and run the existing `handleTranspileXMLtoST` helper so + * this path shares the xml2st spawn / error-handling code + * the program build already uses. + * 4. Read xml2st's program.st back and hand it + + * knownPous + manifest to `libraryBuildFromTranspiledSt`, + * which drops the synthetic stub and calls strucpp's + * `compileStlib`. + * 5. Write the archive (same `JSON.stringify(archive, null, 2)` + * shape `library-manager-module` persists user-installed + * archives with) to `/build/.stlib`. + * 6. (Phase 8) Run an end-to-end avr-gcc verification compile + * against the OpenPLC Simulator target, gated by an MD5 + * cache keyed off the produced program.st. Verification + * failures surface as warnings on `result.verification`, + * never as build errors — a legitimate user target may have + * more memory than the AVR simulator. `cleanBuild` skips + * the cache and forces a re-verification. + */ + async compileLibrary( + args: Array, + _mainProcessPort: MessagePortMain, + mainProcessBridge: LibraryCompileBridge, + ): Promise { + _mainProcessPort.start() + + const post = (message: string, logLevel: 'info' | 'warning' | 'error' = 'info') => + _mainProcessPort.postMessage({ logLevel, message }) + + // Sends the structured result and closes the port. No + // `closePort: true` flag is needed on the payload: the + // renderer-side bridge already synthesises one callback for the + // MessagePort `'close'` event the `setTimeout` triggers, and + // posting an explicit flag in the same message just made the + // adapter fire its closePort branch twice (once via onmessage, + // once via the close listener). Keep the 25 ms delay so the + // result payload is delivered before the port closes. + const finish = (result: CompileLibraryResult) => { + _mainProcessPort.postMessage({ libraryBuildResult: result }) + setTimeout(() => _mainProcessPort.close(), 25) + } + + // Single-shot error path used by every "fail-fast" stage below. + // Every stage that aborts the build with one error message posts + // it to the console then forwards the same string as `error` on + // the structured result; this helper collapses both calls so the + // 8 fail-fast sites read as one line each. Extra fields (e.g. + // `libraryName` once the manifest is known) can be threaded via + // the second arg. + const bail = (msg: string, extra: Partial = {}) => { + post(msg, 'error') + finish({ success: false, error: msg, ...extra }) + } + + // The renderer adapter sends two preprocessed datasets: + // - `projectData` (formerly the only one) is preprocessed with + // `isSimulator: false` — Python POUs carry the full + // Python-as-ST conversion, C++ POUs carry the ST stub + + // `originalCppPous` sidecar. Used for the library build + // itself (Stages 1–6). + // - `verifyProjectData` is preprocessed with `isSimulator: + // true` — Python POUs are no-op stubs the AVR simulator + // can compile cleanly; C++ POUs are unchanged. Used as + // input to `composeVerificationProject` so the verify + // compile (Stage 3) doesn't try to link Python loader + // externs the simulator runtime doesn't ship. + // + // Both datasets share the same source POU list, just with + // different Python treatment. C++ POUs and ST/IL/data-types + // are identical between them. + const [projectPath, projectData, verifyProjectData, cleanBuild = false] = args as [ + string, + PLCProjectData, + PLCProjectData, + boolean | undefined, + ] + const normalizedProjectPath = projectPath.replace('project.json', '') + + post('Starting library build...') + + // Stage 0: read manifest from disk. + const manifestPath = join(normalizedProjectPath, 'library.json') + let manifestJson: string + try { + manifestJson = await readFile(manifestPath, { encoding: 'utf8' }) + } catch (error) { + bail(`Could not read library.json: ${getErrorMessage(error)}`) + return + } + + // Stage 1: manifest validation + XML generation. + const project: PLCProject = { + meta: { name: '', type: 'plc-library' as const }, + data: projectData as unknown as PLCProjectData, + } + const stage1 = prepareXmlForLibraryBuild(project, manifestJson) + if ('error' in stage1) { + bail(stage1.error) + return + } + const { xml, knownPous, manifest } = stage1 + post(`Manifest OK — building "${manifest.name}" v${manifest.version}.`) + + // Persist plc.xml in an isolated `library` build sub-directory so + // it doesn't collide with the program-build artefacts when both + // modes coexist on the same project tree. + const libraryBuildDir = join(normalizedProjectPath, 'build', 'library') + const libraryBuildSrcDir = join(libraryBuildDir, 'src') + try { + await fs.rm(libraryBuildDir, { recursive: true, force: true }) + await mkdir(libraryBuildSrcDir, { recursive: true }) + } catch (error) { + bail(`Could not prepare build directory: ${getErrorMessage(error)}`) + return + } + + const xmlPath = join(libraryBuildSrcDir, 'plc.xml') + try { + await writeFile(xmlPath, xml, 'utf-8') + } catch (error) { + bail(`Could not write plc.xml: ${getErrorMessage(error)}`) + return + } + + // Stage 2: xml2st spawn (shared with the program-build path). + try { + await this.handleTranspileXMLtoST(xmlPath, (data, logLevel) => { + // xml2st's stdout doubles as progress + error stream; surface + // it verbatim so the user sees the same diagnostics the + // program-build path produces. + const message = typeof data === 'string' ? data : data.toString() + post(message, logLevel ?? 'info') + }) + } catch (error) { + bail(`xml2st failed: ${getErrorMessage(error)}`) + return + } + + // Stage 3: read program.st + run library compile. + const programStPath = join(libraryBuildSrcDir, 'program.st') + let programSt: string + try { + programSt = await readFile(programStPath, { encoding: 'utf8' }) + } catch (error) { + bail(`Could not read program.st from xml2st output: ${getErrorMessage(error)}`) + return + } + + // Resolve project-enabled libraries up front — these archives feed + // both verification (so the simulator compile sees the same symbols + // a real user would) and `compileStlib` below. Missing names fail + // the build with the same "open the Library Manager" message + // `compileProgram` uses, before either heavy step runs. + const enabledLibraryRefs = (projectData.libraries ?? []).map((ref) => ({ + name: ref.name, + version: ref.version, + })) + const { archives: depArchives, missing: missingDeps } = mainProcessBridge.loadEnabledArchives( + enabledLibraryRefs.map((r) => r.name), + ) + if (missingDeps.length > 0) { + bail( + `Library build aborted: enabled libraries are not installed (${missingDeps.join(', ')}). ` + + `Open the Library Manager to install or remove them.`, + { libraryName: manifest.name }, + ) + return + } + + // Stage 3: end-to-end C++ verification against the OpenPLC + // Simulator target — same strucpp → arduino-cli → bundled avr-gcc + // pipeline the program build uses, so the editor never depends on + // a host compiler. Runs BEFORE the `.stlib` write so the artefact + // generation is unconditionally the last step: whatever the + // verification outcome, the user always sees a fresh `.stlib` on + // disk when "Library built successfully" lands. + // + // Verification is advisory: a failure surfaces as a warning, not + // a build error. A legitimate user target may have more memory + // than the AVR simulator, and the tight AVR memory budget the + // simulator imposes is exactly the constraint many real + // industrial targets don't share. + // + // The MD5 cache short-circuits the slow compile when the + // already-verified program.st hasn't changed. `cleanBuild` + // skips the cache and forces a re-verification. + const programStMd5 = crypto.createHash('md5').update(programSt).digest('hex') + // Keep the cache OUTSIDE `libraryBuildDir` — that directory is + // wiped at the start of every build (line ~3119 above), so a + // cache file living inside it would never survive between + // runs. Sitting one level up in `build/` keeps it adjacent to + // the build outputs without being clobbered. + const verifyCachePath = join(normalizedProjectPath, 'build', '.verify-cache-library.json') + let cachedVerification: CompileLibraryResult['verification'] + if (!cleanBuild) { + try { + const raw = await readFile(verifyCachePath, { encoding: 'utf8' }) + const parsed = JSON.parse(raw) as { md5?: string; success?: boolean; message?: string } + if (parsed && parsed.md5 === programStMd5 && typeof parsed.success === 'boolean') { + cachedVerification = { success: parsed.success, message: parsed.message } + } + } catch { + // Missing or malformed cache — fall through to fresh + // verification. Never fail the build over the cache. + } + } + + let verification: CompileLibraryResult['verification'] + if (cachedVerification) { + verification = cachedVerification + post( + `Skipping verification (cached: ${cachedVerification.success ? 'pass' : 'fail'}). ` + + 'Use "Clean build" to force re-verification.', + ) + } else { + // Feed `composeVerificationProject` the verify-preprocessed + // dataset (Python POUs as no-op stubs) — the AVR simulator's + // compile path can't link the Python loader externs the + // full Python-as-ST shape produces. The build dataset + // (Python as full ST) is intentionally NOT used here. + const verifyProject = composeVerificationProject({ + meta: { name: manifest.name, type: 'plc-library' }, + data: verifyProjectData as unknown as PLCProjectData, + }) + post('Verifying with OpenPLC Simulator (avr-gcc)...') + try { + // Stream the inner pipeline's output through the renderer + // port with a `[verify]` prefix so the user sees the same + // strucpp + arduino-cli progress they'd see on a normal + // simulator build. Critical for two reasons: + // - avr-gcc compile can take 10+ seconds on a library + // with a lot of C++; a silent console looks frozen. + // - When verification fails, the user needs the actual + // compile diagnostic, not just the summary line. + // The success line at the bottom of compileLibrary still + // comes after this stream — `.stlib` generation is the + // last step regardless of verification outcome. + verification = await this.runVerificationCompile( + normalizedProjectPath, + verifyProject.data, + mainProcessBridge, + (message, logLevel) => + // Demote inner errors to warnings on the way out. + // The library's own `.stlib` will still be produced, + // so an `[verify]` line being level=error in the + // console would falsely suggest the build failed. + _mainProcessPort.postMessage({ + logLevel: logLevel === 'error' ? 'warning' : (logLevel ?? 'info'), + message: `[verify] ${message}`, + }), + ) + try { + await writeFile( + verifyCachePath, + JSON.stringify({ md5: programStMd5, ...verification }, null, 2), + 'utf-8', + ) + } catch (cacheErr) { + post(`Could not write verification cache: ${getErrorMessage(cacheErr)}`, 'warning') + } + } catch (err) { + verification = { success: false, message: getErrorMessage(err) } + } + if (verification.success) { + post('Verification passed.') + } else { + post( + `Verification reported issues (warning only — .stlib will still be generated): ${verification.message ?? 'see log'}`, + 'warning', + ) + } + } + + // Stage 4: gather per-symbol documentation from the editor view + // so `decorateArchive` can stamp it onto the manifest entries. + // POUs contribute their "Description" field; data types + // contribute their own optional `documentation` field. + const pouDocs: Record = {} + for (const pou of projectData.pous) { + if (pou.data.documentation && pou.data.documentation.length > 0) { + pouDocs[pou.data.name] = pou.data.documentation + } + } + for (const dt of projectData.dataTypes ?? []) { + const doc = (dt as { documentation?: string }).documentation + if (typeof doc === 'string' && doc.length > 0) { + pouDocs[(dt as { name: string }).name] = doc + } + } + + // Stage 5: strucpp `compileStlib` — splits program.st per-POU, + // drops the synthetic main, builds the archive. Hard failures + // here (xml2st-malformed output, strucpp internal errors) stop + // the build because we have no archive to ship. These are NOT + // advisory like verification — strucpp owns the artefact format. + // Pull the C/C++ FBs out of the preprocessed data — they live + // on `originalCppPous` (placed there by `preprocessPous`'s C++ + // branch). These ride through the archive verbatim; strucpp + // never sees them. The consumer-side compile reads them back + // and routes them through the existing user-C++-block path + // with a `__` rename for collision + // avoidance. + const cppBlocks = ( + (projectData as { originalCppPous?: Array<{ name: string; code: string; variables: unknown[] }> }) + .originalCppPous ?? [] + ).map((b) => ({ + name: b.name, + code: b.code, + variables: b.variables, + })) + + const stage2 = libraryBuildFromTranspiledSt(programSt, knownPous, manifest, { + pouDocs, + dependencyArchives: depArchives, + dependencyRefs: enabledLibraryRefs, + cppBlocks, + }) + if (!stage2.success) { + for (const err of stage2.errors) { + const where = err.file ? `[${err.file}${err.line ? `:${err.line}` : ''}] ` : '' + post(`${where}${err.message}`, 'error') + } + finish({ + success: false, + error: stage2.errors[0]?.message ?? 'Library compilation failed.', + libraryName: manifest.name, + }) + return + } + + // Stage 6 (final): serialise the archive to disk. Same JSON + // shape `library-manager-module` persists user-installed archives + // with, so a future "build then install" round-trip uses the + // identical on-disk format. This is unconditionally the last + // step so the user's "Library built successfully" line refers + // to a fresh artefact, never a stale one. + const stlibPath = join(normalizedProjectPath, 'build', `${manifest.name}.stlib`) + try { + await mkdir(join(normalizedProjectPath, 'build'), { recursive: true }) + await writeFile(stlibPath, JSON.stringify(stage2.archive, null, 2) + '\n', 'utf-8') + } catch (error) { + bail(`Could not write ${manifest.name}.stlib: ${getErrorMessage(error)}`) + return + } + + post(`Library built successfully: ${stlibPath}`) + finish({ success: true, stlibPath, libraryName: manifest.name, verification }) + } + + /** + * Run an end-to-end verification compile of a synthetic Library + * Project against the OpenPLC Simulator target. Reuses the full + * `compileProgram` pipeline (strucpp → arduino-cli → bundled + * avr-gcc) by feeding it a private `MessageChannelMain` — verifies + * the same way the program build does, against the same binaries, + * with zero code duplication. + * + * `forwardLog` is the caller's drain for the inner pipeline's + * message stream. Streaming the strucpp / arduino-cli output is + * the difference between "blank console for 30 seconds while + * arduino-cli compiles" and "user sees progress" — and crucially + * the difference between "the .stlib generated but verification + * failed silently" and "the user knows which C++ line tripped + * avr-gcc". We do keep the first error message internally so the + * summary line at the end of the build is succinct, but every log + * line still flows through. + * + * Resolves with `{success, message?}` either when the inner + * pipeline posts `closePort: true` (happy path) or when its port + * closes without one (the many error paths in `compileProgram`). + * Never throws — matches the caller's "verification is advisory" + * contract. + */ + private async runVerificationCompile( + projectPath: string, + verifyData: PLCProjectData, + bridge: LibraryVerificationBridge, + forwardLog: (message: string, logLevel?: 'info' | 'warning' | 'error') => void, + ): Promise<{ success: boolean; message?: string }> { + // Look up the simulator board's core ID from `hals.json` — + // single source of truth shared with the renderer-side + // `boardInfo.core` lookup. Falls back to a sensible default + // only if hals.json has been mangled; the resulting compile + // would fail at `core install` and surface as a verification + // warning, which is the documented advisory behaviour. + const SIMULATOR_BOARD = 'OpenPLC Simulator' + const boardCore = (await this.#getBoardCore(SIMULATOR_BOARD)) ?? 'arduino:avr' + + return new Promise((resolve) => { + const channel = new MessageChannelMain() + let firstError: string | null = null + let settled = false + + const settle = (result: { success: boolean; message?: string }) => { + if (settled) return + settled = true + try { + channel.port1.close() + } catch { + // Already closed — fine. + } + resolve(result) + } + + channel.port1.on('message', (event) => { + const data = event.data as { + message?: unknown + logLevel?: 'info' | 'warning' | 'error' + closePort?: boolean + } + if (data.message !== undefined) { + // `decodePortMessage` returns readable text from the + // `Uint8Array` Node `Buffer` payloads survive structured + // clone as. Without it, `.toString()` on a Uint8Array + // would render comma-separated byte numbers in the + // console. + const text = decodePortMessage(data.message) + // Forward every line — the caller decides how to render + // them (PLC-build path would prepend `[verify]`). Even + // info-level messages matter here: avr-gcc compile can + // take 10+ seconds on a large library and the user needs + // to see progress. + forwardLog(text, data.logLevel) + // Keep only the FIRST error string for the summary. Once + // arduino-cli or strucpp errors, the cascade usually + // continues with knock-on failures; the first one names + // the underlying cause. + if (data.logLevel === 'error' && firstError === null) { + firstError = text + } + } + if (data.closePort) { + settle(firstError ? { success: false, message: firstError } : { success: true }) + } + }) + // `compileProgram` posts intermediate `closePort: true` messages + // on its happy path but jumps straight to `port.close()` on its + // many error paths, without an explicit close message. Listen + // for the port's 'close' event so an inner-pipeline error can't + // leave the outer library build hanging on an unresolved promise + // — same convention the renderer-side adapter uses. + channel.port1.on('close', () => { + settle(firstError ? { success: false, message: firstError } : { success: true }) + }) + channel.port1.start() + + // The boolean slots (compileOnly / cleanBuild) are runtime + // values the inner `compileProgram` re-casts off `args as [...]`, + // so the outer cast is needed to silence the strict arg type + // (which only admits `string | null | PLCProjectData`). + const compileArgs = [ + projectPath, + SIMULATOR_BOARD, + boardCore, + true, + verifyData, + null, + null, + true, + ] as unknown as Array + void this.compileProgram(compileArgs, channel.port2, bridge).catch((err) => + settle({ success: false, message: getErrorMessage(err) }), + ) + }) + } } export { CompilerModule } diff --git a/src/backend/editor/compiler/types.ts b/src/backend/editor/compiler/types.ts index 2d3bdea8f..a8fc5f24f 100644 --- a/src/backend/editor/compiler/types.ts +++ b/src/backend/editor/compiler/types.ts @@ -36,6 +36,12 @@ const BoardInfoSchema = z.object({ c_flags: z.array(z.string()).optional(), cxx_flags: z.array(z.string()).optional(), ld_flags: z.array(z.string()).optional(), + // Overrides arduino-cli's post-link `upload.maximum_data_size` + // check. Required when `ld_flags` extend the linker memory + // map past the canonical SoC RAM (e.g. emulated boards) — + // otherwise the link succeeds but the CLI rejects the binary + // with "data section exceeds available space in board". + max_data_size: z.number().optional(), arch: z.string().optional(), }) diff --git a/src/backend/editor/compiler/utils/formatters.ts b/src/backend/editor/compiler/utils/formatters.ts deleted file mode 100644 index 9f828ccb4..000000000 --- a/src/backend/editor/compiler/utils/formatters.ts +++ /dev/null @@ -1,6 +0,0 @@ -const FormatMacAddress = (rawMacAddress: string) => { - const macParts = rawMacAddress.split(':') - const formattedMac = macParts.map((part) => `0x${part.toUpperCase()}`).join(', ') - return formattedMac -} -export { FormatMacAddress } diff --git a/src/backend/editor/hardware/hardware-module.ts b/src/backend/editor/hardware/hardware-module.ts index 350ba3246..57bfd9e78 100644 --- a/src/backend/editor/hardware/hardware-module.ts +++ b/src/backend/editor/hardware/hardware-module.ts @@ -1,4 +1,5 @@ import { exec } from 'node:child_process' +import { existsSync } from 'node:fs' import { readFile } from 'node:fs/promises' import { join } from 'node:path' import { promisify } from 'node:util' @@ -6,6 +7,9 @@ import { promisify } from 'node:util' import { app as electronApp } from 'electron' import { produce } from 'immer' +import { assertPathContained } from '../utils/path-containment' +import { PackageManagerModule } from '../package-manager' +import { logger } from '../services/logger-service' import type { AvailableBoards, HalsFile, SerialPort } from './types' // interface MethodsResult { @@ -102,7 +106,7 @@ class HardwareModule { const { stdout, stderr } = await executeCommand(`"${xml2stBinaryPath}" --list-ports`) if (stderr) { - console.warn('xml2st stderr output:', stderr) + logger.warn(`xml2st stderr output: ${stderr}`) } let normalizedOutputString: SerialPort[] = [{ name: '', address: 'fallback' }] @@ -120,14 +124,14 @@ class HardwareModule { address: port.address, })) } catch (parseError: unknown) { - console.error('Failed to parse xml2st output:', parseError) + logger.error(`Failed to parse xml2st output: ${String(parseError)}`) return [] } } return normalizedOutputString } catch (execError: unknown) { - console.error('Failed to execute xml2st:', execError) + logger.error(`Failed to execute xml2st: ${String(execError)}`) return [] } } @@ -182,13 +186,123 @@ class HardwareModule { }) }) } + // Merge boards from installed VPP packages + const mutableBoards: AvailableBoards = new Map(availableBoards) + await this.#mergeVppBoards(mutableBoards) + // Sort boards alphabetically by name - const sortedBoards: AvailableBoards = new Map([...availableBoards.entries()].sort(([a], [b]) => a.localeCompare(b))) + const sortedBoards: AvailableBoards = new Map([...mutableBoards.entries()].sort(([a], [b]) => a.localeCompare(b))) return sortedBoards } - async getBoardImagePreview(image: string) { - const imagePath = join(this.sourcesDirectoryPath, 'boards', 'previews', image) + async #mergeVppBoards(boards: AvailableBoards): Promise { + try { + const packageManager = new PackageManagerModule() + const installed = packageManager.listInstalled() + for (const pkg of installed) { + const manifest = packageManager.getInstalledPackageManifest(pkg.packageId) + if (!manifest) continue + + for (const device of manifest.devices) { + // Read all screen definitions + const screens: Record = {} + if (device.screens) { + for (const [screenName, screenFile] of Object.entries(device.screens)) { + const screenPath = join(pkg.path, screenFile) + if (existsSync(screenPath)) { + try { + screens[screenName] = await HardwareModule.readJSONFile(screenPath) + } catch { + /* ignore invalid screen */ + } + } + } + } + + // Map target type to compiler + const compiler = device.target.type === 'runtime-v4' ? 'openplc-compiler' : 'arduino-cli' + + // Per-module configuration screens live alongside top-level + // screens; load them eagerly so the renderer can present the + // full per-slot detail pane without an extra IPC round trip. + const loadModuleConfigScreen = async (relPath: string | undefined) => { + if (!relPath) return undefined + const fullPath = join(pkg.path, relPath) + if (!existsSync(fullPath)) return undefined + try { + return await HardwareModule.readJSONFile(fullPath) + } catch { + return undefined + } + } + + const modules = device.moduleSystem + ? await Promise.all( + device.moduleSystem.modules.map(async (m) => ({ + id: m.id, + name: m.name, + hwId: m.hwId, + image: m.image, + description: m.description, + specs: m.specs, + configScreen: m.configScreen, + configScreenDefinition: await loadModuleConfigScreen(m.configScreen), + io: m.io, + parameters: m.parameters, + addressMapping: m.addressMapping, + })), + ) + : [] + + boards.set(device.name, { + compiler, + core: device.target.core ?? '', + preview: device.preview, + specs: device.specs ?? {}, + pins: { + defaultDin: device.defaults?.pins?.defaultDin, + defaultDout: device.defaults?.pins?.defaultDout, + defaultAin: device.defaults?.pins?.defaultAin, + defaultAout: device.defaults?.pins?.defaultAout, + }, + vpp: { + packageId: manifest.package.id, + deviceId: device.id, + packagePath: pkg.path, + screens, + moduleSystem: device.moduleSystem + ? { + enabled: device.moduleSystem.enabled, + maxSlots: device.moduleSystem.maxSlots, + modules, + } + : null, + }, + }) + } + } + } catch (err) { + logger.error(`Failed to load VPP packages: ${String(err)}`) + } + } + + async getBoardImagePreview(image: string, packagePath?: string) { + // `image` arrives from a board manifest (built-in or VPP-installed) + // and ultimately from disk-resident JSON the user can edit. Without + // containment, an entry like `image: "../../../../etc/passwd"` + // would resolve outside the expected directory and the contents + // would be base64'd back across the IPC boundary — effectively a + // file-read primitive scoped to whatever the editor user can read. + // + // For built-in boards: contain under sources/boards/previews. + // For VPP boards: contain under the package's own directory, since + // package authors expect to ship their preview alongside other + // package assets. + const baseDir = packagePath + ? packagePath + : join(this.sourcesDirectoryPath, 'boards', 'previews') + const imagePath = join(baseDir, image) + assertPathContained(baseDir, imagePath, 'preview image path') const imageBuffer = await readFile(imagePath) diff --git a/src/backend/editor/hardware/types.ts b/src/backend/editor/hardware/types.ts index 6d69ec4c1..ac6156d5f 100644 --- a/src/backend/editor/hardware/types.ts +++ b/src/backend/editor/hardware/types.ts @@ -14,6 +14,7 @@ const BoardInfoSchema = z.object({ c_flags: z.array(z.string()).optional(), cxx_flags: z.array(z.string()).optional(), ld_flags: z.array(z.string()).optional(), + max_data_size: z.number().optional(), default_ain: z.string(), default_aout: z.string(), default_din: z.string(), @@ -60,6 +61,42 @@ const availableBoardsSchema = z.map( }), ) +// VPP module definition — describes an I/O module in a vendor backplane system +type VppModuleDefinition = { + id: string + name: string + image?: string + io: { + digitalInputs: number + digitalOutputs: number + analogInputs: number + analogOutputs: number + } + parameters?: Array<{ + id: string + name: string + type: string + options?: string[] + default?: unknown + min?: number + max?: number + }> + addressMapping?: unknown +} + +// VPP metadata attached to boards that come from installed VPP packages +type VppMetadata = { + packageId: string + deviceId: string + packagePath: string + screens: Record + moduleSystem: { + enabled: boolean + maxSlots: number + modules: VppModuleDefinition[] + } | null +} + // !! We're not able to infer the type of the Map directly from the schema, so we define it manually. // !! This is a workaround to ensure type safety when using the schema. type AvailableBoards = Map< @@ -68,17 +105,7 @@ type AvailableBoards = Map< compiler: string core: string preview: string - specs: { - CPU: string - RAM: string - Flash: string - DigitalPins: string - AnalogPins: string - PWMPins: string - WiFi: string - Bluetooth: string - Ethernet: string - } + specs: Record // Optional properties coreVersion?: string pins: { @@ -87,8 +114,9 @@ type AvailableBoards = Map< defaultDin?: string[] defaultDout?: string[] } + vpp?: VppMetadata } > export { availableBoardsSchema, BoardInfoSchema, HalsFileSchema, SerialPortSchema } -export type { AvailableBoards, BoardInfo, HalsFile, SerialPort } +export type { AvailableBoards, BoardInfo, HalsFile, SerialPort, VppMetadata, VppModuleDefinition } diff --git a/src/backend/editor/library-manager/__tests__/library-manager-module.test.ts b/src/backend/editor/library-manager/__tests__/library-manager-module.test.ts new file mode 100644 index 000000000..99d0d629f --- /dev/null +++ b/src/backend/editor/library-manager/__tests__/library-manager-module.test.ts @@ -0,0 +1,367 @@ +/** + * LibraryManagerModule — backend unit tests. + * + * Filesystem is real (under a per-test temp dir) so we exercise the + * actual disk shape; Electron's `app` global and the strucpp module + * are mocked because neither is available in Jest's CJS runtime. + * + * The strucpp mock returns deterministic stub archives keyed off the + * sources/options it gets — that's enough to verify our codesys + * dispatch path and the persist-archive contract without pulling in + * the real (ESM) strucpp package. + */ + +import { existsSync, mkdtempSync, readFileSync, rmSync, writeFileSync } from 'fs' +import { tmpdir } from 'os' +import { join } from 'path' + +// Mock Electron's `app.getPath('userData')` — we don't use it (we +// pass an explicit `librariesDir` to the constructor) but the import +// itself runs at module load time and would crash without this. +jest.mock('electron', () => ({ + app: { getPath: () => '/tmp/never-used' }, +})) + +// Mock strucpp at the require boundary — the shared shims `require` +// the pure `strucpp` entry, so that's the module-id we target. +// Returns deterministic archives with a known shape so the test can +// pin downstream behaviour without pulling in the real (ESM) package. +jest.mock( + 'strucpp', + () => ({ + importCodesysLibraryFromBytes: jest.fn(async (bytes: Uint8Array) => ({ + success: true, + sources: [{ fileName: 'mock.st', source: `(* imported from ${bytes.byteLength}-byte buffer *)` }], + globalConstants: { STRING_LENGTH: 254 }, + })), + compileStlib: jest.fn( + ( + _sources: unknown, + options: { name: string; version: string; namespace: string }, + ) => ({ + success: true, + archive: { + manifest: { + name: options.name, + version: options.version, + namespace: options.namespace, + description: 'mock codesys-imported library', + isBuiltin: false, + functions: [], + functionBlocks: [], + types: [], + }, + }, + }), + ), + loadStlibFromString: jest.fn(), + }), + { virtual: true }, +) + +import { LibraryManagerModule } from '../library-manager-module' + +function makeArchive(name: string, version = '1.0.0') { + return { + manifest: { + name, + version, + namespace: name, + description: `${name} description`, + isBuiltin: false, + functions: [], + functionBlocks: [], + types: [], + }, + } +} + +let testRoot: string +let librariesDir: string +let bundledDir: string + +beforeEach(() => { + testRoot = mkdtempSync(join(tmpdir(), 'library-manager-test-')) + librariesDir = join(testRoot, 'libraries') + bundledDir = join(testRoot, 'bundled') +}) + +afterEach(() => { + rmSync(testRoot, { recursive: true, force: true }) +}) + +function makeModule(): LibraryManagerModule { + // Constructor calls mkdirSync(librariesDir, { recursive: true }); + // bundledDir is consulted lazily, so it can be empty/missing. + return new LibraryManagerModule({ librariesDir, bundledDir }) +} + +function writeBundled(archive: ReturnType): void { + // The bundled discovery walks `/*.stlib`. Mirror that + // shape so the test covers the same code path the real app uses. + if (!existsSync(bundledDir)) { + require('fs').mkdirSync(bundledDir, { recursive: true }) + } + writeFileSync(join(bundledDir, `${archive.manifest.name}.stlib`), JSON.stringify(archive), 'utf-8') +} + +describe('LibraryManagerModule', () => { + describe('listInstalled', () => { + it('returns an empty list when nothing is installed and the bundled dir is missing', () => { + const mod = makeModule() + expect(mod.listInstalled()).toEqual([]) + }) + + it('surfaces bundled libraries with bundled=true and origin=bundled', () => { + writeBundled(makeArchive('iec-standard-fb', '2.0.0')) + const mod = makeModule() + const list = mod.listInstalled() + expect(list).toHaveLength(1) + expect(list[0]).toMatchObject({ + name: 'iec-standard-fb', + version: '2.0.0', + bundled: true, + origin: 'bundled', + }) + expect(list[0].installedAt).toBe('') + }) + + it('lists bundled libraries before user-installed ones', async () => { + writeBundled(makeArchive('zzz-bundled')) + const mod = makeModule() + // Pre-create a user-installed entry by going through the public API. + const tmpStlib = join(testRoot, 'aaa-user.stlib') + writeFileSync(tmpStlib, JSON.stringify(makeArchive('aaa-user', '1.2.3')), 'utf-8') + await mod.installFromFile(tmpStlib) + + const list = mod.listInstalled() + expect(list.map((l) => l.name)).toEqual(['zzz-bundled', 'aaa-user']) + }) + }) + + describe('installFromFile (.stlib path)', () => { + it('rejects non-existent files', async () => { + const mod = makeModule() + const result = await mod.installFromFile(join(testRoot, 'missing.stlib')) + expect(result).toEqual({ success: false, error: expect.stringContaining('File not found') }) + }) + + it('rejects unsupported extensions', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'random.txt') + writeFileSync(tmp, 'whatever', 'utf-8') + const result = await mod.installFromFile(tmp) + expect(result).toEqual({ success: false, error: expect.stringContaining('Unsupported library format') }) + }) + + it('rejects malformed JSON', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'bad.stlib') + writeFileSync(tmp, 'this is not json', 'utf-8') + const result = await mod.installFromFile(tmp) + expect(result).toEqual({ success: false, error: expect.stringContaining('not valid JSON') }) + }) + + it('rejects archives missing the manifest', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'no-manifest.stlib') + writeFileSync(tmp, JSON.stringify({ headerCode: '' }), 'utf-8') + const result = await mod.installFromFile(tmp) + expect(result).toEqual({ success: false, error: expect.stringContaining('missing a manifest') }) + }) + + it('persists a valid archive and registers it', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'good.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('my-lib', '0.1.0')), 'utf-8') + + const result = await mod.installFromFile(tmp) + expect(result).toEqual({ success: true, name: 'my-lib', version: '0.1.0', origin: 'stlib' }) + + // Archive lives under {librariesDir}//.stlib + const stlibPath = join(librariesDir, 'my-lib', 'my-lib.stlib') + expect(existsSync(stlibPath)).toBe(true) + + // Registry has a row keyed by name with the right metadata. + const registry = JSON.parse(readFileSync(join(librariesDir, 'registry.json'), 'utf-8')) + expect(registry.libraries['my-lib']).toMatchObject({ + version: '0.1.0', + origin: 'stlib', + stlibPath, + }) + }) + + it('refuses to install a library that shadows a bundled one', async () => { + writeBundled(makeArchive('iec-standard-fb', '2.0.0')) + const mod = makeModule() + const tmp = join(testRoot, 'rogue.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('iec-standard-fb', '99.0.0')), 'utf-8') + const result = await mod.installFromFile(tmp) + expect(result).toEqual({ + success: false, + error: expect.stringContaining('bundled library with this name'), + }) + }) + + it('rejects manifest names that contain path separators', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'bad-id.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('../escape')), 'utf-8') + const result = await mod.installFromFile(tmp) + expect(result.success).toBe(false) + }) + }) + + describe('installFromFile (CODESYS path)', () => { + it('runs the codesys importer + compileStlib then persists the archive', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'OSCAT.library') + writeFileSync(tmp, 'binary codesys content', 'utf-8') + + const result = await mod.installFromFile(tmp) + expect(result).toMatchObject({ success: true, origin: 'codesys' }) + // Mock derives the name from the file basename, sanitised. + if (result.success && !('canceled' in result && result.canceled)) { + expect(result.name).toBe('OSCAT') + expect(existsSync(join(librariesDir, 'OSCAT', 'OSCAT.stlib'))).toBe(true) + } + }) + + it('also accepts the .lib extension', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'standard.lib') + writeFileSync(tmp, 'mock', 'utf-8') + const result = await mod.installFromFile(tmp) + expect(result.success).toBe(true) + }) + }) + + describe('uninstall', () => { + it('refuses to uninstall a bundled library', () => { + writeBundled(makeArchive('iec-standard-fb')) + const mod = makeModule() + const result = mod.uninstall('iec-standard-fb') + expect(result).toEqual({ success: false, error: expect.stringContaining('Cannot uninstall bundled') }) + }) + + it("returns an error when the library isn't installed", () => { + const mod = makeModule() + const result = mod.uninstall('phantom') + expect(result).toEqual({ success: false, error: expect.stringContaining('not installed') }) + }) + + it('removes a user-installed library and clears its registry entry', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'foo.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('foo')), 'utf-8') + await mod.installFromFile(tmp) + + const result = mod.uninstall('foo') + expect(result).toEqual({ success: true }) + expect(existsSync(join(librariesDir, 'foo'))).toBe(false) + const registry = JSON.parse(readFileSync(join(librariesDir, 'registry.json'), 'utf-8')) + expect(registry.libraries.foo).toBeUndefined() + }) + + it('rejects names with path traversal', () => { + const mod = makeModule() + const result = mod.uninstall('../escape') + expect(result.success).toBe(false) + }) + }) + + describe('loadAll', () => { + it('returns bundled archives followed by user-installed', async () => { + writeBundled(makeArchive('aaa-bundled')) + writeBundled(makeArchive('bbb-bundled')) + const mod = makeModule() + const tmp = join(testRoot, 'ccc-user.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('ccc-user')), 'utf-8') + await mod.installFromFile(tmp) + + const all = mod.loadAll() + expect(all.map((a) => a.manifest.name)).toEqual(['aaa-bundled', 'bbb-bundled', 'ccc-user']) + }) + + it('skips orphaned registry entries whose .stlib went missing', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'foo.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('foo')), 'utf-8') + await mod.installFromFile(tmp) + // Simulate disk corruption: the file is gone but the registry + // still records it. loadAll should silently skip rather than + // throw or return undefined entries. + rmSync(join(librariesDir, 'foo', 'foo.stlib')) + expect(mod.loadAll()).toEqual([]) + }) + }) + + describe('loadEnabledArchives', () => { + it('always returns bundled archives when the bundled dir exists', () => { + writeBundled(makeArchive('iec-standard-fb')) + const mod = makeModule() + const result = mod.loadEnabledArchives([]) + expect(result.archives.map((a) => a.manifest.name)).toEqual(['iec-standard-fb']) + expect(result.missing).toEqual([]) + }) + + it('returns no archives when the bundled dir is absent and nothing is enabled', () => { + const mod = makeModule() + const result = mod.loadEnabledArchives([]) + expect(result.archives).toEqual([]) + expect(result.missing).toEqual([]) + }) + + it('appends parsed archives for installed user libs that are enabled', async () => { + writeBundled(makeArchive('iec-standard-fb')) + const mod = makeModule() + const tmp = join(testRoot, 'oscat.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('oscat-basic')), 'utf-8') + await mod.installFromFile(tmp) + + const result = mod.loadEnabledArchives(['oscat-basic']) + expect(result.archives.map((a) => a.manifest.name)).toEqual(['iec-standard-fb', 'oscat-basic']) + expect(result.missing).toEqual([]) + }) + + it('does not include user libs that are installed but not enabled', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'oscat.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('oscat-basic')), 'utf-8') + await mod.installFromFile(tmp) + + const result = mod.loadEnabledArchives([]) + // Bundled dir doesn't exist in this test harness. + expect(result.archives).toEqual([]) + }) + + it('reports enabled libraries that have no archive on disk', async () => { + const mod = makeModule() + const tmp = join(testRoot, 'foo.stlib') + writeFileSync(tmp, JSON.stringify(makeArchive('foo')), 'utf-8') + await mod.installFromFile(tmp) + // Wipe the archive but keep the registry entry — pre-compile + // gate should detect this as missing. + rmSync(join(librariesDir, 'foo', 'foo.stlib')) + + const result = mod.loadEnabledArchives(['foo', 'phantom']) + expect(result.archives).toEqual([]) + expect(result.missing).toEqual(['foo', 'phantom']) + }) + }) + + describe('registry resilience', () => { + it('treats a missing registry.json as an empty registry', () => { + const mod = makeModule() + expect(mod.listInstalled()).toEqual([]) + }) + + it('treats a corrupt registry.json as an empty registry', () => { + // Construct first so the librariesDir exists, then corrupt the + // registry behind the module's back to model an external edit. + const mod = makeModule() + writeFileSync(join(librariesDir, 'registry.json'), '{not json', 'utf-8') + expect(mod.listInstalled()).toEqual([]) + }) + }) +}) diff --git a/src/backend/editor/library-manager/index.ts b/src/backend/editor/library-manager/index.ts new file mode 100644 index 000000000..ceaaec642 --- /dev/null +++ b/src/backend/editor/library-manager/index.ts @@ -0,0 +1,2 @@ +export { LibraryManagerModule } from './library-manager-module' +export type { LibraryRegistry } from './types' diff --git a/src/backend/editor/library-manager/library-manager-module.ts b/src/backend/editor/library-manager/library-manager-module.ts new file mode 100644 index 000000000..e1054558a --- /dev/null +++ b/src/backend/editor/library-manager/library-manager-module.ts @@ -0,0 +1,411 @@ +import { app } from 'electron' +import { existsSync, mkdirSync, readdirSync, readFileSync, rmSync, writeFileSync } from 'fs' +import { basename, extname, join } from 'path' + +import type { StlibArchiveDTO } from '../../../middleware/shared/ports/library-port' +import type { InstalledLibrary, LibraryInstallResult } from '../../../middleware/shared/ports/library-types' +import { importCodesysLibrary as sharedImportCodesys } from '../../shared/library/codesys-import' +import { compileStlib as sharedCompileStlib } from '../../shared/library/compile-stlib' +import { assertPathContained } from '../utils/path-containment' +import { validatePathId } from '../../shared/utils/path-safety' +import type { LibraryRegistry } from './types' + +/** + * System-wide library pool. + * + * Two physical sources merge into one in-memory catalogue: + * + * - **Bundled** — every `.stlib` shipping in the strucpp resources + * dir. Discovered fresh each session (no on-disk registry + * entry), flagged `bundled: true`, never uninstallable. Future + * strucpp releases that add libraries automatically grow this set. + * + * - **User-installed** — `.stlib` archives the user imports + * directly + CODESYS `.lib`/`.library` files run through + * strucpp's importer to produce a `.stlib`. Persisted under + * `{userData}/libraries//.stlib` with metadata in + * `{userData}/libraries/registry.json`. + * + * Library identity = the strucpp manifest `name`. That's the same + * value `project.json`'s `libraries[].name` records, so project ↔ + * pool joins are O(1) on a Map keyed by name. + */ +export class LibraryManagerModule { + private librariesDir: string + private registryPath: string + private bundledDir: string + + constructor(opts?: { librariesDir?: string; bundledDir?: string }) { + this.librariesDir = opts?.librariesDir ?? join(app.getPath('userData'), 'libraries') + this.registryPath = join(this.librariesDir, 'registry.json') + this.bundledDir = + opts?.bundledDir ?? this.resolveDefaultBundledDir() + mkdirSync(this.librariesDir, { recursive: true }) + } + + /** + * Resolve the strucpp-shipped bundled-libs directory. Reads from + * two different locations depending on dev vs packaged: + * + * - **Dev**: `/node_modules/strucpp/libs/` — populated by + * `scripts/download-binaries.ts` on `npm install`. + * + * - **Packaged**: `process.resourcesPath/strucpp/libs/` — + * populated by electron-builder's `extraResources` config. We + * can't read from `app.getAppPath()/node_modules/strucpp` in + * packaged builds because strucpp isn't declared in + * `release/app/package.json`'s `dependencies`, so + * electron-builder prunes it out of the asar. + */ + private resolveDefaultBundledDir(): string { + if (app.isPackaged) { + return join(process.resourcesPath, 'strucpp', 'libs') + } + return join(app.getAppPath(), 'node_modules', 'strucpp', 'libs') + } + + // ------------------------------------------------------------------------- + // Public API — IPC entry points + // ------------------------------------------------------------------------- + + /** + * Install the library at `filePath`. Dispatches by extension: + * `.stlib` is parsed and copied verbatim, `.lib`/`.library` is + * piped through strucpp's CODESYS importer + compileStlib. + * + * Returns the same shape regardless of origin so the renderer + * doesn't need to branch on file type. + */ + async installFromFile(filePath: string): Promise { + try { + if (!existsSync(filePath)) { + return { success: false, error: `File not found: ${filePath}` } + } + + const ext = extname(filePath).toLowerCase() + if (ext === '.stlib') { + return this.installStlib(filePath) + } + if (ext === '.lib' || ext === '.library') { + return this.installFromCodesys(filePath) + } + return { + success: false, + error: `Unsupported library format: ${ext} (expected .stlib, .lib, or .library)`, + } + } catch (err) { + return { success: false, error: `Install failed: ${err instanceof Error ? err.message : String(err)}` } + } + } + + /** + * Catalogue rows for the manager UI. Bundled libs appear first + * (in alphabetical filename order from the strucpp dir), then + * user-installed libs alphabetical by `name`. + */ + listInstalled(): InstalledLibrary[] { + const out: InstalledLibrary[] = [] + + for (const archive of this.readBundledArchives()) { + out.push({ + name: archive.manifest.name, + version: archive.manifest.version, + bundled: true, + installedAt: '', + origin: 'bundled', + ...(archive.manifest.displayName ? { displayName: archive.manifest.displayName } : {}), + ...(archive.manifest.description ? { description: archive.manifest.description } : {}), + }) + } + + const registry = this.readRegistry() + const userEntries = Object.entries(registry.libraries).sort(([a], [b]) => a.localeCompare(b)) + for (const [name, info] of userEntries) { + const archive = this.readUserArchive(name, info.stlibPath) + if (!archive) continue + out.push({ + name, + version: info.version, + bundled: false, + installedAt: info.installedAt, + origin: info.origin, + ...(archive.manifest.displayName ? { displayName: archive.manifest.displayName } : {}), + ...(archive.manifest.description ? { description: archive.manifest.description } : {}), + }) + } + return out + } + + /** + * Load the full parsed archives for every enabled library — both + * bundled and user-installed. Used by the program build pipeline + * (fed into `strucpp.compile`'s `libraries:` option) and by the + * Library Project build pipeline (fed into `compileStlib`'s + * dependency list so a library that references external symbols — + * an OSCAT function, say — resolves at compile time). + * + * Bundled libraries are always-on and included unconditionally; + * user libraries are filtered by `enabledNames`. `missing` lists + * enabled names that have no archive on disk so the caller can + * surface a single "install or remove" error before strucpp runs, + * instead of strucpp's per-symbol "function not found" cascade. + */ + loadEnabledArchives(enabledNames: string[]): { archives: StlibArchiveDTO[]; missing: string[] } { + const archives: StlibArchiveDTO[] = [] + for (const archive of this.readBundledArchives()) archives.push(archive) + const registry = this.readRegistry() + const missing: string[] = [] + for (const name of enabledNames) { + const entry = registry.libraries[name] + if (!entry) { + missing.push(name) + continue + } + const archive = this.readUserArchive(name, entry.stlibPath) + if (!archive) { + missing.push(name) + continue + } + archives.push(archive) + } + return { archives, missing } + } + + /** + * Return every installed archive's parsed contents — bundled then + * user-installed alphabetical. Used by the renderer to hydrate + * the in-memory library state at startup and after install/uninstall + * change events. + */ + loadAll(): StlibArchiveDTO[] { + const out: StlibArchiveDTO[] = [] + for (const archive of this.readBundledArchives()) out.push(archive) + const registry = this.readRegistry() + const userEntries = Object.entries(registry.libraries).sort(([a], [b]) => a.localeCompare(b)) + for (const [name, info] of userEntries) { + const archive = this.readUserArchive(name, info.stlibPath) + if (archive) out.push(archive) + } + return out + } + + /** + * Remove a user-installed library. Refuses for bundled libraries + * — those are always-on (the caller should disable them at the + * project level instead). + */ + uninstall(name: string): { success: boolean; error?: string } { + try { + validatePathId(name, 'name') + if (this.isBundled(name)) { + return { success: false, error: `Cannot uninstall bundled library '${name}'` } + } + + const registry = this.readRegistry() + const entry = registry.libraries[name] + if (!entry) { + return { success: false, error: `Library '${name}' is not installed` } + } + + const libraryDir = join(this.librariesDir, name) + assertPathContained(this.librariesDir, libraryDir, 'library install path') + if (existsSync(libraryDir)) { + rmSync(libraryDir, { recursive: true }) + } + delete registry.libraries[name] + this.writeRegistry(registry) + return { success: true } + } catch (err) { + return { success: false, error: `Uninstall failed: ${err instanceof Error ? err.message : String(err)}` } + } + } + + // ------------------------------------------------------------------------- + // Install paths + // ------------------------------------------------------------------------- + + private async installStlib(filePath: string): Promise { + let raw: unknown + try { + raw = JSON.parse(readFileSync(filePath, 'utf-8')) + } catch { + return { success: false, error: 'Invalid .stlib: not valid JSON' } + } + return this.persistArchive(raw, 'stlib') + } + + private async installFromCodesys(filePath: string): Promise { + // Read the .lib/.library bytes here (Node-only territory) and + // hand them to the browser-pure shared importer. The bytes-in + // shape is the same the web backend uses against an HTTP upload + // body, so the shared importer doesn't grow a path coupling. + const bytes = new Uint8Array(readFileSync(filePath)) + const importResult = await sharedImportCodesys(bytes) + if (!importResult.success || !importResult.sources) { + const errs = (importResult.errors ?? ['unknown error']).join('; ') + return { success: false, error: `CODESYS import failed: ${errs}` } + } + + // Derive a stable name + version from the file basename. CODESYS + // .library files have richer metadata in the binary header, but + // strucpp's importer doesn't currently surface it; falling back to + // the filename gives the user a predictable identifier they can + // rename later if needed. + const baseName = basename(filePath, extname(filePath)) + let identifier = baseName.replace(/[^A-Za-z0-9._-]+/g, '-').replace(/^[.-]+/, '') + if (!identifier) identifier = 'imported-library' + + const compileResult = sharedCompileStlib(importResult.sources, { + name: identifier, + version: '1.0.0', + namespace: identifier.replace(/[^A-Za-z0-9_]/g, '_'), + noSource: false, + builtin: false, + ...(importResult.globalConstants ? { globalConstants: importResult.globalConstants } : {}), + }) + if (!compileResult.success || !compileResult.archive) { + const errs = (compileResult.errors ?? []).map((e) => e.message).join('; ') + return { success: false, error: `CODESYS compile failed: ${errs || 'unknown error'}` } + } + + return this.persistArchive(compileResult.archive, 'codesys') + } + + /** + * Validate an in-memory archive (must look like an `StlibArchive`), + * write it to disk under `{userData}/libraries//.stlib`, + * and register the entry. Shared between the .stlib and CODESYS + * paths so disk shape stays uniform regardless of origin. + */ + private async persistArchive(raw: unknown, origin: 'stlib' | 'codesys'): Promise { + const archive = this.coerceArchive(raw) + if (!archive) { + return { success: false, error: 'Library archive is missing a manifest' } + } + const name = archive.manifest.name + const version = archive.manifest.version + if (typeof name !== 'string' || !name) { + return { success: false, error: 'Library archive manifest is missing a name' } + } + if (typeof version !== 'string' || !version) { + return { success: false, error: 'Library archive manifest is missing a version' } + } + + try { + validatePathId(name, 'manifest.name') + } catch (err) { + return { success: false, error: err instanceof Error ? err.message : String(err) } + } + + if (this.isBundled(name)) { + return { + success: false, + error: `Cannot install '${name}' — a bundled library with this name already exists`, + } + } + + const libraryDir = join(this.librariesDir, name) + assertPathContained(this.librariesDir, libraryDir, 'library install path') + mkdirSync(libraryDir, { recursive: true }) + const stlibPath = join(libraryDir, `${name}.stlib`) + writeFileSync(stlibPath, JSON.stringify(archive, null, 2) + '\n', 'utf-8') + + const registry = this.readRegistry() + registry.libraries[name] = { + version, + installedAt: new Date().toISOString(), + stlibPath, + origin, + } + this.writeRegistry(registry) + + return { success: true, name, version, origin } + } + + // ------------------------------------------------------------------------- + // Internal helpers + // ------------------------------------------------------------------------- + + private bundledArchivesCache: StlibArchiveDTO[] | null = null + private bundledNamesCache: Set | null = null + + /** Discover bundled archives. Cached for the process lifetime + * because the strucpp resources dir doesn't change at runtime. */ + private readBundledArchives(): StlibArchiveDTO[] { + if (this.bundledArchivesCache) return this.bundledArchivesCache + if (!existsSync(this.bundledDir)) { + this.bundledArchivesCache = [] + this.bundledNamesCache = new Set() + return [] + } + const entries = readdirSync(this.bundledDir).filter((f) => f.endsWith('.stlib')).sort() + const archives: StlibArchiveDTO[] = [] + const names = new Set() + for (const file of entries) { + try { + const raw = JSON.parse(readFileSync(join(this.bundledDir, file), 'utf-8')) as unknown + const archive = this.coerceArchive(raw) + if (archive) { + archives.push(archive) + names.add(archive.manifest.name) + } + } catch { + // Skip malformed bundled archives — surfacing them as a hard + // failure here would break startup; the missing entry is + // self-evident in the manager UI. + } + } + this.bundledArchivesCache = archives + this.bundledNamesCache = names + return archives + } + + private isBundled(name: string): boolean { + if (!this.bundledNamesCache) this.readBundledArchives() + return this.bundledNamesCache!.has(name) + } + + private readUserArchive(name: string, stlibPath: string): StlibArchiveDTO | null { + try { + assertPathContained(this.librariesDir, stlibPath, `library[${name}].stlibPath`) + } catch { + return null + } + if (!existsSync(stlibPath)) return null + try { + const raw = JSON.parse(readFileSync(stlibPath, 'utf-8')) as unknown + return this.coerceArchive(raw) + } catch { + return null + } + } + + /** + * Light-touch validation that an unknown JSON blob has the + * `StlibArchive` shape the rest of the editor expects. Doesn't + * try to schema-validate every field — we trust strucpp's + * compileStlib output and the .stlib format spec — but guards + * against catastrophic mismatches (missing manifest, no name). + */ + private coerceArchive(raw: unknown): StlibArchiveDTO | null { + if (!raw || typeof raw !== 'object') return null + const obj = raw as { manifest?: unknown } + if (!obj.manifest || typeof obj.manifest !== 'object') return null + return raw as StlibArchiveDTO + } + + private readRegistry(): LibraryRegistry { + if (!existsSync(this.registryPath)) { + return { formatVersion: '1.0', libraries: {} } + } + try { + return JSON.parse(readFileSync(this.registryPath, 'utf-8')) as LibraryRegistry + } catch { + return { formatVersion: '1.0', libraries: {} } + } + } + + private writeRegistry(registry: LibraryRegistry): void { + writeFileSync(this.registryPath, JSON.stringify(registry, null, 2) + '\n', 'utf-8') + } +} diff --git a/src/backend/editor/library-manager/types.ts b/src/backend/editor/library-manager/types.ts new file mode 100644 index 000000000..a795ac612 --- /dev/null +++ b/src/backend/editor/library-manager/types.ts @@ -0,0 +1,40 @@ +/** + * Backend-internal library-manager types. + * + * The cross-process wire types (`InstalledLibrary`, + * `LibraryInstallResult`) live in + * `src/middleware/shared/ports/library-types.ts` so the IPC adapter + * and the renderer share a single contract. We re-export them here + * so backend modules keep their imports local; the on-disk + * `LibraryRegistry` shape stays backend-only. + */ + +import type { InstalledLibrary, LibraryInstallResult } from '../../../middleware/shared/ports/library-types' + +/** + * On-disk shape of `{userData}/libraries/registry.json`. Records + * user-installed libraries (bundled libs are discovered fresh from + * the strucpp resources dir each session, never persisted here). + * + * Keyed by `name` (the strucpp manifest's library identifier) — the + * same value the project's `libraries[].name` field stores, so + * project ↔ system pool joins are O(1). + */ +export type LibraryRegistry = { + formatVersion: string + libraries: Record< + string, + { + version: string + installedAt: string + /** Absolute path to the `.stlib` archive on disk. */ + stlibPath: string + /** Source format the user installed from — "stlib" for native + * archives, "codesys" for .lib/.library imports. Purely + * informational; UI may surface a badge. */ + origin: 'stlib' | 'codesys' + } + > +} + +export type { InstalledLibrary, LibraryInstallResult } diff --git a/src/backend/editor/modbus/modbus-client.ts b/src/backend/editor/modbus/modbus-client.ts index b4aa107ff..5074b80bf 100644 --- a/src/backend/editor/modbus/modbus-client.ts +++ b/src/backend/editor/modbus/modbus-client.ts @@ -1,3 +1,5 @@ +import type { Md5ProbeResult } from '@root/backend/shared/debug/types' +import { detectTargetEndian } from '@root/frontend/utils/endian' import { getErrorMessage } from '@root/frontend/utils/get-error-message' import { Socket } from 'net' @@ -110,7 +112,7 @@ export class ModbusTcpClient { }) } - async getMd5Hash(): Promise { + async getMd5Hash(): Promise { if (!this.socket) { throw new Error('Not connected to target') } @@ -153,8 +155,16 @@ export class ModbusTcpClient { throw new Error(`Target returned error code: 0x${statusCode.toString(16)}`) } - const md5String = data.slice(9).toString('utf-8').trim() - return md5String + // Response trailer is a 2-byte runtime-driven sentinel: the + // runtime stores the literal 0xDEAD through a native uint16_t, + // so the bytes reflect target byte order. + const trailerHi = data.readUInt8(data.length - 2) + const trailerLo = data.readUInt8(data.length - 1) + const targetEndian = detectTargetEndian(trailerHi, trailerLo) + + const md5Region = data.slice(9, data.length - 2) + const md5 = md5Region.toString('utf-8').replace(/\0+$/, '').trim() + return { md5, targetEndian } } async getVariablesList(variableIndexes: number[]): Promise<{ @@ -174,7 +184,9 @@ export class ModbusTcpClient { const functionCode = ModbusFunctionCode.DEBUG_GET_LIST const numIndexes = variableIndexes.length - const pduLength = 4 + 2 * numIndexes + // Phase 4 PDU: each address is 3 bytes (arr:u8, elem_hi, elem_lo). + // Editor represents a DebugAddr as packed number: (arr << 16) | elem. + const pduLength = 4 + 3 * numIndexes const request = Buffer.alloc(6 + pduLength) request.writeUInt16BE(transactionId, 0) @@ -185,7 +197,11 @@ export class ModbusTcpClient { request.writeUInt16BE(numIndexes, 8) for (let i = 0; i < numIndexes; i++) { - request.writeUInt16BE(variableIndexes[i], 10 + i * 2) + const packed = variableIndexes[i] + const arr = (packed >>> 16) & 0xff + const elem = packed & 0xffff + request.writeUInt8(arr, 10 + i * 3) + request.writeUInt16BE(elem, 10 + i * 3 + 1) } try { @@ -267,8 +283,13 @@ export class ModbusTcpClient { const unitId = 0x00 const functionCode = ModbusFunctionCode.DEBUG_SET + // Phase 4 PDU: [FC, arr:u8, elem:u16, force:u8, len:u16, value...] + // DebugAddr packed as (arr << 16) | elem on the JS side. + const arr = (variableIndex >>> 16) & 0xff + const elem = variableIndex & 0xffff + const dataLength = force && valueBuffer ? valueBuffer.length : 1 - const pduLength = 7 + dataLength + const pduLength = 8 + dataLength const request = Buffer.alloc(6 + pduLength) request.writeUInt16BE(transactionId, 0) @@ -276,16 +297,17 @@ export class ModbusTcpClient { request.writeUInt16BE(pduLength, 4) request.writeUInt8(unitId, 6) request.writeUInt8(functionCode, 7) - request.writeUInt16BE(variableIndex, 8) - request.writeUInt8(force ? 1 : 0, 10) - request.writeUInt16BE(dataLength, 11) + request.writeUInt8(arr, 8) + request.writeUInt16BE(elem, 9) + request.writeUInt8(force ? 1 : 0, 11) + request.writeUInt16BE(dataLength, 12) if (force && valueBuffer) { for (let i = 0; i < valueBuffer.length; i++) { - request.writeUInt8(valueBuffer[i], 13 + i) + request.writeUInt8(valueBuffer[i], 14 + i) } } else { - request.writeUInt8(0, 13) + request.writeUInt8(0, 14) } try { diff --git a/src/backend/editor/modbus/modbus-rtu-client.ts b/src/backend/editor/modbus/modbus-rtu-client.ts index d0508829c..08746ab7a 100644 --- a/src/backend/editor/modbus/modbus-rtu-client.ts +++ b/src/backend/editor/modbus/modbus-rtu-client.ts @@ -1,5 +1,7 @@ // eslint-disable-next-line @typescript-eslint/ban-ts-comment // @ts-ignore - serialport types are not available at build time but will be at runtime +import type { Md5ProbeResult } from '@root/backend/shared/debug/types' +import { detectTargetEndian } from '@root/frontend/utils/endian' import { getErrorMessage } from '@root/frontend/utils/get-error-message' import { SerialPort } from 'serialport' @@ -250,7 +252,7 @@ export class ModbusRtuClient { }) } - async getMd5Hash(): Promise { + async getMd5Hash(): Promise { const functionCode = ModbusFunctionCode.DEBUG_GET_MD5 const endiannessCheck = 0xdead @@ -285,8 +287,16 @@ export class ModbusRtuClient { throw new Error(`Target returned error code: 0x${statusCode.toString(16)}`) } - const md5String = response.slice(9).toString('utf-8').trim() - return md5String + // Response trailer is a 2-byte runtime-driven sentinel: the + // runtime stores the literal 0xDEAD through a native uint16_t, + // so the bytes reflect target byte order. + const trailerHi = response.readUInt8(response.length - 2) + const trailerLo = response.readUInt8(response.length - 1) + const targetEndian = detectTargetEndian(trailerHi, trailerLo) + + const md5Region = response.slice(9, response.length - 2) + const md5 = md5Region.toString('utf-8').replace(/\0+$/, '').trim() + return { md5, targetEndian } } catch (error) { lastError = error instanceof Error ? error : new Error(getErrorMessage(error)) if (attempt < MD5_REQUEST_MAX_RETRIES) { @@ -309,11 +319,17 @@ export class ModbusRtuClient { const functionCode = ModbusFunctionCode.DEBUG_GET_LIST const numIndexes = variableIndexes.length - const data = Buffer.alloc(2 + 2 * numIndexes) + // Phase 4 PDU: each address is (arr:u8, elem:u16) — 3 bytes. + // Editor represents DebugAddr as packed number: (arr << 16) | elem. + const data = Buffer.alloc(2 + 3 * numIndexes) data.writeUInt16BE(numIndexes, 0) for (let i = 0; i < numIndexes; i++) { - data.writeUInt16BE(variableIndexes[i], 2 + i * 2) + const packed = variableIndexes[i] + const arr = (packed >>> 16) & 0xff + const elem = packed & 0xffff + data.writeUInt8(arr, 2 + i * 3) + data.writeUInt16BE(elem, 2 + i * 3 + 1) } const request = this.assembleRequest(functionCode, data) @@ -384,19 +400,24 @@ export class ModbusRtuClient { try { const functionCode = ModbusFunctionCode.DEBUG_SET + // Phase 4 PDU: [arr:u8, elem:u16, force:u8, len:u16, value...] + const arr = (variableIndex >>> 16) & 0xff + const elem = variableIndex & 0xffff + const dataLength = force && valueBuffer ? valueBuffer.length : 1 - const data = Buffer.alloc(5 + dataLength) + const data = Buffer.alloc(6 + dataLength) - data.writeUInt16BE(variableIndex, 0) - data.writeUInt8(force ? 1 : 0, 2) - data.writeUInt16BE(dataLength, 3) + data.writeUInt8(arr, 0) + data.writeUInt16BE(elem, 1) + data.writeUInt8(force ? 1 : 0, 3) + data.writeUInt16BE(dataLength, 4) if (force && valueBuffer) { for (let i = 0; i < valueBuffer.length; i++) { - data.writeUInt8(valueBuffer[i], 5 + i) + data.writeUInt8(valueBuffer[i], 6 + i) } } else { - data.writeUInt8(0, 5) + data.writeUInt8(0, 6) } const request = this.assembleRequest(functionCode, data) diff --git a/src/backend/editor/package-manager/index.ts b/src/backend/editor/package-manager/index.ts new file mode 100644 index 000000000..bc74408ef --- /dev/null +++ b/src/backend/editor/package-manager/index.ts @@ -0,0 +1,2 @@ +export { PackageManagerModule } from './package-manager-module' +export type { ImportResult, InstalledPackage, PackageManifest, PackageRegistry } from './types' diff --git a/src/backend/editor/package-manager/package-manager-module.ts b/src/backend/editor/package-manager/package-manager-module.ts new file mode 100644 index 000000000..5d829bff3 --- /dev/null +++ b/src/backend/editor/package-manager/package-manager-module.ts @@ -0,0 +1,206 @@ +import { app } from 'electron' +import extract from 'extract-zip' +import { existsSync, mkdirSync, mkdtempSync, readFileSync, renameSync, rmSync, writeFileSync } from 'fs' +import { join } from 'path' + +import { PackageManifestSchema } from '../../../middleware/shared/ports/package-manifest-schema' +import { validatePathId } from '../../shared/utils/path-safety' +import { assertPathContained } from '../utils/path-containment' +import type { ImportResult, InstalledPackage, PackageManifest, PackageRegistry } from './types' + +class PackageManagerModule { + private packagesDir: string + private registryPath: string + + constructor() { + this.packagesDir = join(app.getPath('userData'), 'packages') + this.registryPath = join(this.packagesDir, 'registry.json') + mkdirSync(this.packagesDir, { recursive: true }) + } + + async importFromFile(vppFilePath: string): Promise { + // mkdtempSync gives us a guaranteed-unique scratch directory per call + // so two concurrent imports don't race on the same `_temp_import` + // path and rmSync each other's extracted contents mid-flight. The + // `.import-` prefix keeps the dotfile out of normal listings; we + // remove the directory unconditionally before returning. + let tempDir: string | null = null + try { + tempDir = mkdtempSync(join(this.packagesDir, '.import-')) + + await extract(vppFilePath, { dir: tempDir }) + + const manifestPath = join(tempDir, 'manifest.json') + if (!existsSync(manifestPath)) { + return { success: false, error: 'Package does not contain a manifest.json file' } + } + + // Parse + schema-validate. Doing this BEFORE any field is used as + // a path component or rendered in the UI catches malformed/hostile + // manifests at the trust boundary; everything past this point can + // treat the manifest as well-formed. + let raw: unknown + try { + raw = JSON.parse(readFileSync(manifestPath, 'utf-8')) + } catch { + return { success: false, error: 'Invalid manifest.json format' } + } + + const parsed = PackageManifestSchema.safeParse(raw) + if (!parsed.success) { + return { + success: false, + error: `Invalid manifest schema: ${parsed.error.issues.map((i) => i.path.join('.') + ': ' + i.message).join('; ')}`, + } + } + const manifest: PackageManifest = parsed.data as unknown as PackageManifest + + // Validate package.id BEFORE using it as a path component. Without + // this, a malicious .vpp with `"id": "../../something"` would have + // `targetDir` resolve outside packagesDir and the rmSync below + // could delete an arbitrary user directory. + try { + validatePathId(manifest.package.id, 'manifest.package.id') + } catch (err) { + return { success: false, error: err instanceof Error ? err.message : String(err) } + } + + const packageId = manifest.package.id + const targetDir = join(this.packagesDir, packageId) + + // Defence in depth: even with the regex above, assert containment + // post-resolve so any future relaxation of the regex can't reopen + // the traversal vector silently. + try { + assertPathContained(this.packagesDir, targetDir, 'package install path') + } catch (err) { + return { success: false, error: err instanceof Error ? err.message : String(err) } + } + + if (existsSync(targetDir)) { + rmSync(targetDir, { recursive: true }) + } + + renameSync(tempDir, targetDir) + tempDir = null // ownership transferred; finally block must not delete + + const registry = this.readRegistry() + registry.packages[packageId] = { + version: manifest.package.version, + installedAt: new Date().toISOString(), + path: targetDir, + devices: manifest.devices.map((d) => d.id), + } + this.writeRegistry(registry) + + return { + success: true, + packageId, + packageName: manifest.package.name, + devices: manifest.devices.map((d) => d.name), + } + } catch (err) { + return { success: false, error: `Import failed: ${err instanceof Error ? err.message : String(err)}` } + } finally { + // Cleanup any orphan temp directory left by an early return / throw. + if (tempDir && existsSync(tempDir)) { + rmSync(tempDir, { recursive: true, force: true }) + } + } + } + + listInstalled(): InstalledPackage[] { + const registry = this.readRegistry() + return Object.entries(registry.packages).map(([packageId, info]) => ({ + packageId, + ...info, + })) + } + + uninstall(packageId: string): { success: boolean; error?: string } { + try { + // packageId reaches us through IPC from the renderer; validate it + // shape-first so an invalid value can't be used to look up an + // entry under a hostile registry key. + validatePathId(packageId, 'packageId') + + const registry = this.readRegistry() + const pkg = registry.packages[packageId] + if (!pkg) { + return { success: false, error: `Package ${packageId} is not installed` } + } + + // The registry is editor-owned, but disk contents can drift + // (manual edits, restored backups). Confirm the recorded path + // still sits under packagesDir before any rmSync — a tampered + // registry would otherwise be a delete-anywhere primitive. + assertPathContained(this.packagesDir, pkg.path, 'registry package path') + + if (existsSync(pkg.path)) { + rmSync(pkg.path, { recursive: true }) + } + + delete registry.packages[packageId] + this.writeRegistry(registry) + + return { success: true } + } catch (err) { + return { success: false, error: `Uninstall failed: ${err instanceof Error ? err.message : String(err)}` } + } + } + + getInstalledPackageManifest(packageId: string): PackageManifest | null { + try { + validatePathId(packageId, 'packageId') + } catch { + return null + } + + const registry = this.readRegistry() + const pkg = registry.packages[packageId] + if (!pkg) return null + + // Disk paths recorded in the registry must still sit under + // packagesDir — same containment defence as in `uninstall`. + try { + assertPathContained(this.packagesDir, pkg.path, 'registry package path') + } catch { + return null + } + + const manifestPath = join(pkg.path, 'manifest.json') + if (!existsSync(manifestPath)) return null + + let raw: unknown + try { + raw = JSON.parse(readFileSync(manifestPath, 'utf-8')) + } catch { + return null + } + const parsed = PackageManifestSchema.safeParse(raw) + return parsed.success ? (parsed.data as unknown as PackageManifest) : null + } + + getPackagePath(packageId: string): string | null { + const registry = this.readRegistry() + const pkg = registry.packages[packageId] + return pkg?.path ?? null + } + + private readRegistry(): PackageRegistry { + if (!existsSync(this.registryPath)) { + return { formatVersion: '1.0', packages: {} } + } + try { + return JSON.parse(readFileSync(this.registryPath, 'utf-8')) as PackageRegistry + } catch { + return { formatVersion: '1.0', packages: {} } + } + } + + private writeRegistry(registry: PackageRegistry): void { + writeFileSync(this.registryPath, JSON.stringify(registry, null, 2), 'utf-8') + } +} + +export { PackageManagerModule } diff --git a/src/backend/editor/package-manager/types.ts b/src/backend/editor/package-manager/types.ts new file mode 100644 index 000000000..613dfcb00 --- /dev/null +++ b/src/backend/editor/package-manager/types.ts @@ -0,0 +1,18 @@ +/** + * Backend-internal package-manager types. + * + * The cross-process wire types (`PackageManifest`, `InstalledPackage`, + * `ImportResult`) live in src/middleware/shared/ports/types.ts so the + * IPC adapter and the renderer share a single contract. We re-export + * them here so backend modules can keep their imports local; the + * `PackageRegistry` shape is purely on-disk and stays backend-only. + */ + +import type { ImportResult, InstalledPackage, PackageManifest } from '../../../middleware/shared/ports/types' + +type PackageRegistry = { + formatVersion: string + packages: Record> +} + +export type { ImportResult, InstalledPackage, PackageManifest, PackageRegistry } diff --git a/src/backend/editor/services/project-service/index.ts b/src/backend/editor/services/project-service/index.ts index e812e10fc..d8a91b8eb 100644 --- a/src/backend/editor/services/project-service/index.ts +++ b/src/backend/editor/services/project-service/index.ts @@ -5,7 +5,7 @@ import { IProjectRecentHistoryEntry, IProjectServiceResponse, } from '@root/types/IPC/project-service' -import { projectDefaultFilesMapSchema } from '@root/types/IPC/project-service/project-files-schema' +import { projectDefaultFilesMapSchema } from '@root/backend/shared/project/project-files-schema' import { app, BrowserWindow, dialog } from 'electron' import { promises } from 'fs' import { dirname, join, normalize } from 'path' @@ -131,6 +131,7 @@ class ProjectService { projectJson: string deviceConfig: string pinMapping: string + libraryManifest: string pouFiles: Array<{ relativePath: string; content: string }> serverFiles: Array<{ relativePath: string; content: string }> remoteDeviceFiles: Array<{ relativePath: string; content: string }> @@ -227,6 +228,20 @@ class ProjectService { const serverFiles = await readDirRecursive(join(projectPath, 'devices', 'servers'), 'devices/servers') const remoteDeviceFiles = await readDirRecursive(join(projectPath, 'devices', 'remote'), 'devices/remote') + // Library projects own a `library.json` at the project root. + // Read it as a plain string (parsing happens upstream in the + // build pipeline + manifest editor — same convention POUs use: + // raw bytes here, structure upstream). Empty string for PLC + // projects and for libraries whose disk shape is missing the + // file; the manifest editor seeds a template on first save. + let libraryManifest = '' + try { + libraryManifest = await promises.readFile(join(projectPath, 'library.json'), 'utf-8') + } catch { + // No library.json on disk — not a library, or a library + // whose manifest was never persisted. Leave empty. + } + return { success: true, data: { @@ -234,6 +249,7 @@ class ProjectService { projectJson, deviceConfig, pinMapping, + libraryManifest, pouFiles, serverFiles, remoteDeviceFiles, @@ -365,15 +381,35 @@ class ProjectService { async writeProjectFiles(files: { projectPath: string projectJson: string - deviceConfig: string - pinMapping: string + /** Library projects don't own `devices/configuration.json`; the + * renderer sends `undefined` for those, and we skip the write + * here instead of truncating the on-disk copy to an empty + * string. */ + deviceConfig?: string + /** Same optional-on-libraries semantics as `deviceConfig`. */ + pinMapping?: string + /** Library projects' manifest (`library.json`). PLC projects + * send `undefined`; libraries whose manifest tab hasn't been + * mounted this session also send `undefined` (no pending edits + * to flush). Skipped on the write side when undefined so the + * on-disk copy stays intact. */ + libraryManifest?: string pouFiles: Array<{ relativePath: string; content: string }> serverFiles: Array<{ relativePath: string; content: string }> remoteDeviceFiles: Array<{ relativePath: string; content: string }> deletions: string[] }): Promise { - const { projectPath, projectJson, deviceConfig, pinMapping, pouFiles, serverFiles, remoteDeviceFiles, deletions } = - files + const { + projectPath, + projectJson, + deviceConfig, + pinMapping, + libraryManifest, + pouFiles, + serverFiles, + remoteDeviceFiles, + deletions, + } = files if (!projectPath) { return { @@ -393,12 +429,24 @@ class ProjectService { ), ) - // Write config files - await Promise.all([ + // Write config files. `deviceConfig` / `pinMapping` / + // `libraryManifest` are optional — each is skipped by project + // types that don't own it, so the renderer sends `undefined` + // and we leave the on-disk copies untouched rather than + // overwriting them with an empty string. + const writes: Promise[] = [ promises.writeFile(join(dir, 'project.json'), projectJson, 'utf-8'), - promises.writeFile(join(dir, 'devices/configuration.json'), deviceConfig, 'utf-8'), - promises.writeFile(join(dir, 'devices/pin-mapping.json'), pinMapping, 'utf-8'), - ]) + ] + if (deviceConfig !== undefined) { + writes.push(promises.writeFile(join(dir, 'devices/configuration.json'), deviceConfig, 'utf-8')) + } + if (pinMapping !== undefined) { + writes.push(promises.writeFile(join(dir, 'devices/pin-mapping.json'), pinMapping, 'utf-8')) + } + if (libraryManifest !== undefined) { + writes.push(promises.writeFile(join(dir, 'library.json'), libraryManifest, 'utf-8')) + } + await Promise.all(writes) // Write POU files for (const file of pouFiles) { diff --git a/src/backend/editor/services/project-service/utils/create-project.ts b/src/backend/editor/services/project-service/utils/create-project.ts index 07bf8fbef..904f8cee6 100644 --- a/src/backend/editor/services/project-service/utils/create-project.ts +++ b/src/backend/editor/services/project-service/utils/create-project.ts @@ -1,103 +1,40 @@ -import { DeviceConfiguration, DevicePin } from '@root/backend/shared/types/PLC/devices' -import { PLCPou, PLCProject } from '@root/backend/shared/types/PLC/open-plc' -import { getDefaultSchemaValues } from '@root/backend/shared/utils/default-zod-schema-values' +import { buildProjectFileContent } from '@root/backend/shared/project/create-project-files' import { getExtensionFromLanguage } from '@root/frontend/utils/PLC/pou-file-extensions' import { serializePouToText } from '@root/frontend/utils/PLC/pou-text-serializer' import { CreateProjectDefaultDirectoriesResponse, CreateProjectFileProps, projectDefaultDirectories, - projectDefaultFilesMapSchema, } from '@root/types/IPC/project-service' import { writeFileSync } from 'fs' import { createDirectory, fileOrDirectoryExists, ipcPouToFlat } from '../../../utils' import { CreateJSONFile } from '../../../utils' -const definePou = (language: CreateProjectFileProps['language']): PLCPou => ({ - type: 'program', - data: { - name: 'main', - language: language, - variables: [], - documentation: '', - body: (() => { - switch (language) { - case 'ld': - return { language, value: { name: 'main', rungs: [] } } - case 'fbd': - return { - language, - value: { - name: 'main', - rung: { - comment: '', - edges: [], - nodes: [], - }, - }, - } - default: - return { language, value: '' } - } - })(), - }, -}) - -const createProjectFile = (dataToCreateProjectFile: CreateProjectFileProps): PLCProject => ({ - meta: { - name: dataToCreateProjectFile.name, - type: dataToCreateProjectFile.type, - }, - data: { - pous: [], - dataTypes: [], - configuration: { - resource: { - tasks: [ - { - name: 'task0', - triggering: 'Cyclic', - interval: dataToCreateProjectFile.time, - priority: 1, - }, - ], - instances: [ - { - name: 'instance0', - program: 'main', - task: 'task0', - }, - ], - globalVariables: [], - }, - }, - }, -}) - +/** + * Electron-side orchestration for project creation. + * + * The "what content do we write?" half lives in + * `backend/shared/project/create-project-files` so the web editor's + * backend service can reuse it. This module is now the thin + * `mkdir` / `writeFile` glue around that content. + */ const createProjectDefaultStructure = ( basePath: string, dataToCreateProjectFile: CreateProjectFileProps, ): CreateProjectDefaultDirectoriesResponse => { - const content: { - project: PLCProject | null - pous: PLCPou[] - deviceConfiguration: DeviceConfiguration | null - devicePinMapping: DevicePin[] - } = { - project: null, - pous: [], - deviceConfiguration: null, - devicePinMapping: [], - } - - /** - * Create the default directories in the project structure - */ - - // Create all the default directories if they do not exist - const directories = projectDefaultDirectories - for (const directory of directories) { + // 1. Author all file content (shared, no fs). + const built = buildProjectFileContent(dataToCreateProjectFile) + const isLibrary = dataToCreateProjectFile.type === 'plc-library' + + // 2. Create directories. Use the canonical list from + // `projectDefaultDirectories` so a future "deletedPous" or + // similar directory addition picks up automatically. For + // library projects we still create the device dirs (they stay + // empty) — keeping the directory shape uniform across project + // types means save-flow consumers don't need their own + // library-only branch just to find the directory tree. + for (const directory of projectDefaultDirectories) { const dirPath = `${basePath}/${directory}` try { if (!fileOrDirectoryExists(dirPath)) createDirectory(dirPath) @@ -107,139 +44,110 @@ const createProjectDefaultStructure = ( error: { title: 'Error creating project directories', description: `Failed to create directory at ${dirPath}`, - error: error, + error, }, } } } - /** - * Create the default files in the project structure - */ - - // Create the root files - // These are files that are not in a subdirectory, but directly in the project root - // For example: project.json - const rootFiles = Object.entries(projectDefaultFilesMapSchema).filter( - ([file]) => !file.includes('/') && file.includes('.'), - ) - for (const [file, _schema] of rootFiles) { - const filePath = basePath + // 3. Write project.json from the shared-built object. + try { + CreateJSONFile(basePath, JSON.stringify(built.project, null, 2), 'project') + } catch (error) { + return { + success: false, + error: { + title: 'Error creating project file', + description: `Failed to create project file at ${basePath}`, + error, + }, + } + } - switch (file) { - case 'project.json': - content.project = createProjectFile(dataToCreateProjectFile) - try { - CreateJSONFile(filePath, JSON.stringify(content.project, null, 2), file.split('.')[0]) - } catch (error) { - return { - success: false, - error: { - title: 'Error creating project file', - description: `Failed to create project file at ${filePath}`, - error: error, - }, - } - } - break - default: - break + // 4. Device-level files. Identical content for both project + // types — libraries get the same empty-but-valid skeletons so + // the save pipeline can read them later without branching. + try { + CreateJSONFile(`${basePath}/devices`, JSON.stringify(built.deviceConfiguration, null, 2), 'configuration') + } catch (error) { + return { + success: false, + error: { + title: 'Error creating device configuration file', + description: `Failed to create device configuration file at ${basePath}/devices`, + error, + }, } } - // Create the directories and files that are in subdirectories - // For example: devices/configuration.json - const fileDirectories = Object.entries(projectDefaultFilesMapSchema).filter( - ([file]) => file.includes('/') && file.includes('.'), - ) - for (const [file, schema] of fileDirectories) { - const [directory, fileName] = file.split('/') - const filePath = `${basePath}/${directory}` - const defaultValue = getDefaultSchemaValues(schema) + try { + CreateJSONFile(`${basePath}/devices`, JSON.stringify(built.devicePinMapping, null, 2), 'pin-mapping') + } catch (error) { + return { + success: false, + error: { + title: 'Error creating device pin mapping file', + description: `Failed to create device pin mapping file at ${basePath}/devices`, + error, + }, + } + } + // 5. Library-only: emit the `library.json` manifest template. No + // POUs are created for libraries — the manifest is the single + // "open this by default" entry. + if (isLibrary && built.libraryManifest !== undefined) { try { - switch (file) { - case 'devices/configuration.json': - content.deviceConfiguration = defaultValue as DeviceConfiguration - content.deviceConfiguration.communicationConfiguration.modbusRTU.rtuBaudRate = '115200' - try { - CreateJSONFile(filePath, JSON.stringify(content.deviceConfiguration, null, 2), fileName.split('.')[0]) - } catch (error) { - return { - success: false, - error: { - title: 'Error creating device configuration file', - description: `Failed to create device configuration file at ${filePath}`, - error: error, - }, - } - } - break - case 'devices/pin-mapping.json': - content.devicePinMapping = defaultValue as DevicePin[] - try { - CreateJSONFile(filePath, JSON.stringify(content.devicePinMapping, null, 2), fileName.split('.')[0]) - } catch (error) { - return { - success: false, - error: { - title: 'Error creating device pin mapping file', - description: `Failed to create device pin mapping file at ${filePath}`, - error: error, - }, - } - } - break - default: - break - } + writeFileSync(`${basePath}/library.json`, built.libraryManifest, 'utf-8') } catch (error) { return { success: false, error: { - title: 'Error creating project directories', - description: `Failed to create directory or file at ${filePath}`, - error: error, + title: 'Error creating library manifest', + description: `Failed to create library.json at ${basePath}`, + error, }, } } } - const pou = definePou(dataToCreateProjectFile.language) - const pouPath = `${basePath}/pous/${pou.type}s` - - try { - if (!fileOrDirectoryExists(pouPath)) createDirectory(pouPath) - const flat = ipcPouToFlat(pou) - const extension: string = getExtensionFromLanguage(flat.body.language) - const textContent: string = serializePouToText(flat) - const filePath = `${pouPath}/${flat.name}${extension}` - writeFileSync(filePath, textContent, 'utf-8') - } catch (error) { - return { - success: false, - error: { - title: 'Error creating POU file', - description: `Failed to create POU file at ${pouPath}`, - error: error, - }, + // 6. PLC-project-only: write the default `main` POU. Libraries + // skip this entirely — the user creates their own functions / + // function-blocks / data types after the project opens. + if (!isLibrary && built.pous.length > 0) { + const pou = built.pous[0] + const pouPath = `${basePath}/pous/${pou.type}s` + try { + if (!fileOrDirectoryExists(pouPath)) createDirectory(pouPath) + const flat = ipcPouToFlat(pou) + const extension: string = getExtensionFromLanguage(flat.body.language) + const textContent: string = serializePouToText(flat) + writeFileSync(`${pouPath}/${flat.name}${extension}`, textContent, 'utf-8') + } catch (error) { + return { + success: false, + error: { + title: 'Error creating POU file', + description: `Failed to create POU file at ${pouPath}`, + error, + }, + } } } - content.pous.push(pou) - return { success: true, data: { meta: { path: basePath }, - content: content as { - project: PLCProject - pous: PLCPou[] - deviceConfiguration: DeviceConfiguration - devicePinMapping: DevicePin[] + content: { + project: built.project, + pous: built.pous, + deviceConfiguration: built.deviceConfiguration, + devicePinMapping: built.devicePinMapping, + ...(built.libraryManifest !== undefined ? { libraryManifest: built.libraryManifest } : {}), }, }, } } -export { createProjectDefaultStructure, createProjectFile } +export { createProjectDefaultStructure } diff --git a/src/backend/editor/utils/__tests__/path-containment.test.ts b/src/backend/editor/utils/__tests__/path-containment.test.ts new file mode 100644 index 000000000..25b06d3d6 --- /dev/null +++ b/src/backend/editor/utils/__tests__/path-containment.test.ts @@ -0,0 +1,36 @@ +import { describe, expect, it } from '@jest/globals' + +import { assertPathContained } from '../path-containment' + +describe('assertPathContained', () => { + it('passes when child sits directly under parent', () => { + expect(() => assertPathContained('/tmp/parent', '/tmp/parent/child', 'p')).not.toThrow() + }) + + it('passes with deeper nesting', () => { + expect(() => assertPathContained('/tmp/parent', '/tmp/parent/sub/leaf.json', 'p')).not.toThrow() + }) + + it('rejects sibling directories', () => { + expect(() => assertPathContained('/tmp/parent', '/tmp/sibling/file', 'p')).toThrow(/resolves outside/) + }) + + it('rejects absolute paths that escape via traversal segments', () => { + expect(() => assertPathContained('/tmp/parent', '/tmp/parent/../escape', 'p')).toThrow(/resolves outside/) + }) + + it('rejects unrelated absolute paths', () => { + expect(() => assertPathContained('/tmp/parent', '/etc/passwd', 'p')).toThrow(/resolves outside/) + }) + + it('rejects when child equals parent (treats parent itself as outside)', () => { + // path.relative(parent, parent) === '' which doesn't start with '..', + // so this passes — that's intentional. A caller passing the parent + // directory IS contained under itself and should be allowed. + expect(() => assertPathContained('/tmp/parent', '/tmp/parent', 'p')).not.toThrow() + }) + + it('uses the supplied field name in error messages', () => { + expect(() => assertPathContained('/tmp/parent', '/etc/passwd', 'image')).toThrow(/^image resolves outside/) + }) +}) diff --git a/src/backend/editor/utils/json-manager.ts b/src/backend/editor/utils/json-manager.ts index 1724e2834..7d0ea476d 100644 --- a/src/backend/editor/utils/json-manager.ts +++ b/src/backend/editor/utils/json-manager.ts @@ -1,21 +1,27 @@ -import { writeFile } from 'fs' +import { writeFileSync } from 'fs' import { join } from 'path' /** * - * Function to create a JSON file. + * Function to create a JSON file. Synchronous on purpose: callers + * (project creation, project-file writers) chain multiple writes + * back-to-back and immediately return the result to the renderer + * — the renderer then opens the project, which reads these files. + * The previous async-fire-and-forget form returned `{ok: true}` + * before the write actually flushed, leaving a 0-byte file on disk + * if the process did anything subsequent that interrupted libuv's + * I/O queue. The user's library projects ended up with empty + * `devices/configuration.json` / `pin-mapping.json` exactly this + * way, which broke any later read (`Unexpected end of JSON input`). * * @param path A string containing the path to create the file. * @param data The data to write. * @param fileName The name of the file to create. - * @returns A boolean value indicating whether the file was created successfully or not. + * @returns `{ ok: true }` after the write has been flushed. */ const CreateJSONFile = (path: string, data: string | NodeJS.ArrayBufferView, fileName: string) => { const normalizedPath = join(path, `${fileName}.json`) - writeFile(normalizedPath, data, (error) => { - if (error) throw error - }) - + writeFileSync(normalizedPath, data) return { ok: true } } diff --git a/src/backend/editor/utils/path-containment.ts b/src/backend/editor/utils/path-containment.ts new file mode 100644 index 000000000..ae3f041d2 --- /dev/null +++ b/src/backend/editor/utils/path-containment.ts @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (C) 2026 Autonomy / OpenPLC Project +/** + * Filesystem path-containment guard for the Electron main process. + * + * Why this lives outside `backend/shared`: + * + * The check exists to defend the local filesystem against + * manifest-supplied identifiers — e.g. a vendor package or + * user-installed library that sets `package.id = '../../etc/passwd'` + * and tricks the editor into resolving a path outside its packages + * directory. That's an Electron-only concern; the web edition has + * no local filesystem to defend (uploads go through the compile-VM + * backend, which runs its own containment checks against its own + * storage). Keeping this in `backend/editor/` means the shared + * layer stays free of `node:path` imports. + * + * The companion identifier-shape rule (`checkPathId` / + * `validatePathId`) lives in `backend/shared/utils/path-safety.ts` + * because that's a pure regex check usable anywhere a string + * downstream might land as a path component — including + * `backend/shared/library/build-pipeline.ts`, which runs in either + * platform's runtime. + */ + +import path from 'node:path' + +/** + * Assert that `child` resolves to a path inside `parent`. Both inputs + * are normalised through `path.resolve` before comparison so symlinks + * in `parent` itself won't trick the check (the contract here is + * "deny lexical traversal", not "deny TOCTOU symlink races"). + * + * Throws with the expected vs actual paths so callers can surface a + * useful error. + */ +export function assertPathContained(parent: string, child: string, fieldName: string): void { + const parentResolved = path.resolve(parent) + const childResolved = path.resolve(child) + const rel = path.relative(parentResolved, childResolved) + if (rel.startsWith('..') || path.isAbsolute(rel)) { + throw new Error( + `${fieldName} resolves outside of ${parentResolved} (got ${childResolved})`, + ) + } +} diff --git a/src/backend/editor/utils/xml-manager.ts b/src/backend/editor/utils/xml-manager.ts index 84db49f2e..fa2facb6b 100644 --- a/src/backend/editor/utils/xml-manager.ts +++ b/src/backend/editor/utils/xml-manager.ts @@ -1,18 +1,29 @@ -import { writeFile } from 'fs' +import { writeFileSync } from 'fs' import { join } from 'path' /** - * Create a xml file with the given params. + * Create an xml file with the given params. Synchronous on + * purpose, same reason `CreateJSONFile` is: every caller chains + * the next step (running xml2st on the file) immediately after, + * and the previous async-fire-and-forget form returned success + * before libuv had actually flushed the bytes — a fast subsequent + * spawn could read 0 bytes. The compile pipeline never observed + * this in practice because xml2st spawns slowly enough that the + * write usually won the race, but the API contract has always + * been wrong. + * * @param path - the path where the file must be created * @param dataToWrite - the data to write in the file * @param fileName - the file display name */ const CreateXMLFile = (path: string, dataToWrite: string, fileName: string) => { const normalizedPath = join(path, `${fileName}.xml`) - writeFile(normalizedPath, dataToWrite, (error) => { - if (error) return { success: false, error } - }) - return { success: true, message: 'Xml file created successfully' } + try { + writeFileSync(normalizedPath, dataToWrite) + return { success: true, message: 'Xml file created successfully' } + } catch (error) { + return { success: false, error } + } } export { CreateXMLFile } diff --git a/src/backend/editor/websocket/websocket-debug-client.ts b/src/backend/editor/websocket/websocket-debug-client.ts index f09373c74..f7c659d75 100644 --- a/src/backend/editor/websocket/websocket-debug-client.ts +++ b/src/backend/editor/websocket/websocket-debug-client.ts @@ -1,3 +1,5 @@ +import type { Md5ProbeResult } from '@root/backend/shared/debug/types' +import { detectTargetEndian } from '@root/frontend/utils/endian' import { getErrorMessage } from '@root/frontend/utils/get-error-message' import { io, Socket } from 'socket.io-client' @@ -82,7 +84,7 @@ export class WebSocketDebugClient { return Buffer.from(bytes) } - async getMd5Hash(): Promise { + async getMd5Hash(): Promise { if (!this.socket) { throw new Error('Not connected to target') } @@ -138,8 +140,16 @@ export class WebSocketDebugClient { return } - const md5String = responseBuffer.slice(2).toString('utf-8').trim() - resolve(md5String) + // Response trailer is a 2-byte runtime-driven sentinel: the + // runtime stores the literal 0xDEAD through a native + // uint16_t, so the bytes reflect target byte order. + const trailerHi = responseBuffer.readUInt8(responseBuffer.length - 2) + const trailerLo = responseBuffer.readUInt8(responseBuffer.length - 1) + const targetEndian = detectTargetEndian(trailerHi, trailerLo) + + const md5Region = responseBuffer.slice(2, responseBuffer.length - 2) + const md5 = md5Region.toString('utf-8').replace(/\0+$/, '').trim() + resolve({ md5, targetEndian }) } catch (error) { reject(error instanceof Error ? error : new Error(getErrorMessage(error))) } @@ -164,12 +174,18 @@ export class WebSocketDebugClient { const functionCode = ModbusFunctionCode.DEBUG_GET_LIST const numIndexes = variableIndexes.length - const request = Buffer.alloc(3 + 2 * numIndexes) + // Phase 4 PDU: each address is (arr:u8, elem:u16) — 3 bytes. + // Editor packs DebugAddr as (arr << 16) | elem. + const request = Buffer.alloc(3 + 3 * numIndexes) request.writeUInt8(functionCode, 0) request.writeUInt16BE(numIndexes, 1) for (let i = 0; i < numIndexes; i++) { - request.writeUInt16BE(variableIndexes[i], 3 + i * 2) + const packed = variableIndexes[i] + const arr = (packed >>> 16) & 0xff + const elem = packed & 0xffff + request.writeUInt8(arr, 3 + i * 3) + request.writeUInt16BE(elem, 3 + i * 3 + 1) } const commandHex = this.bufferToHexString(request) @@ -279,20 +295,25 @@ export class WebSocketDebugClient { const functionCode = ModbusFunctionCode.DEBUG_SET + // Phase 4 PDU: [FC, arr:u8, elem:u16, force:u8, len:u16, value...] + const arr = (variableIndex >>> 16) & 0xff + const elem = variableIndex & 0xffff + const dataLength = force && valueBuffer ? valueBuffer.length : 1 - const request = Buffer.alloc(6 + dataLength) + const request = Buffer.alloc(7 + dataLength) request.writeUInt8(functionCode, 0) - request.writeUInt16BE(variableIndex, 1) - request.writeUInt8(force ? 1 : 0, 3) - request.writeUInt16BE(dataLength, 4) + request.writeUInt8(arr, 1) + request.writeUInt16BE(elem, 2) + request.writeUInt8(force ? 1 : 0, 4) + request.writeUInt16BE(dataLength, 5) if (force && valueBuffer) { for (let i = 0; i < valueBuffer.length; i++) { - request.writeUInt8(valueBuffer[i], 6 + i) + request.writeUInt8(valueBuffer[i], 7 + i) } } else { - request.writeUInt8(0, 6) + request.writeUInt8(0, 7) } const commandHex = this.bufferToHexString(request) diff --git a/src/backend/shared/__tests__/validate-variable-type.test.ts b/src/backend/shared/__tests__/validate-variable-type.test.ts index aab9ace54..cfd3aaf8d 100644 --- a/src/backend/shared/__tests__/validate-variable-type.test.ts +++ b/src/backend/shared/__tests__/validate-variable-type.test.ts @@ -54,6 +54,63 @@ describe('validateVariableType', () => { const result = validateVariableType('INT', 'ANY_STRING') expect(result.isValid).toBe(false) }) + + // Regression: composite generics like ANY_ELEMENTARY / ANY_MAGNITUDE / + // ANY_INTEGRAL are `z.union(z.literal(ANY_*))` whose `.options` are + // ZodLiterals pointing at OTHER generics, not strings. The previous + // one-level expansion crashed with "subValue.toUpperCase is not a + // function" when the recursion hit one of these and tried to map + // strings over what were actually ZodLiteral instances. + // + // GE / LE / GT / LT / EQ / NE blocks all take ANY_ELEMENTARY per + // IEC 61131-3, so connecting any variable to one of those triggered + // the crash on every project that uses them. + describe('nested generics (regression: ANY_ELEMENTARY → ANY_MAGNITUDE → REAL)', () => { + it('accepts REAL for ANY_MAGNITUDE', () => { + const result = validateVariableType('REAL', 'ANY_MAGNITUDE') + expect(result.isValid).toBe(true) + }) + + it('accepts INT for ANY_MAGNITUDE', () => { + const result = validateVariableType('INT', 'ANY_MAGNITUDE') + expect(result.isValid).toBe(true) + }) + + it('accepts TIME for ANY_MAGNITUDE (literal embedded in union)', () => { + const result = validateVariableType('TIME', 'ANY_MAGNITUDE') + expect(result.isValid).toBe(true) + }) + + it('rejects BOOL for ANY_MAGNITUDE', () => { + const result = validateVariableType('BOOL', 'ANY_MAGNITUDE') + expect(result.isValid).toBe(false) + }) + + it('accepts REAL for ANY_ELEMENTARY (two levels of nesting)', () => { + const result = validateVariableType('REAL', 'ANY_ELEMENTARY') + expect(result.isValid).toBe(true) + }) + + it('accepts BOOL for ANY_ELEMENTARY (via ANY_BIT)', () => { + const result = validateVariableType('BOOL', 'ANY_ELEMENTARY') + expect(result.isValid).toBe(true) + }) + + it('accepts INT for ANY_INTEGRAL', () => { + const result = validateVariableType('INT', 'ANY_INTEGRAL') + expect(result.isValid).toBe(true) + }) + + it('accepts WORD for ANY_INTEGRAL', () => { + const result = validateVariableType('WORD', 'ANY_INTEGRAL') + expect(result.isValid).toBe(true) + }) + + it('rejects REAL for ANY_INTEGRAL', () => { + const result = validateVariableType('REAL', 'ANY_INTEGRAL') + expect(result.isValid).toBe(false) + }) + }) }) describe('getVariableRestrictionType', () => { @@ -93,4 +150,27 @@ describe('getVariableRestrictionType', () => { expect(Array.isArray(result.values)).toBe(true) expect(result.values as string[]).toContain('STRING') }) + + // Same regression scope as above — these composite generics couldn't + // be flattened before, so callers consuming the result for UI hints + // (e.g. block-input type tooltips) got an empty list at best, and the + // crashy path at worst. + it('flattens ANY_MAGNITUDE to its concrete base types', () => { + const result = getVariableRestrictionType('ANY_MAGNITUDE') + expect(result.definition).toBe('base-type') + expect(result.values).toEqual(expect.arrayContaining(['REAL', 'LREAL', 'INT', 'DINT', 'TIME'])) + }) + + it('flattens ANY_ELEMENTARY across two nesting levels', () => { + const result = getVariableRestrictionType('ANY_ELEMENTARY') + expect(result.definition).toBe('base-type') + // Must reach base types through both ANY_MAGNITUDE and ANY_BIT. + expect(result.values).toEqual(expect.arrayContaining(['REAL', 'INT', 'BOOL', 'WORD'])) + }) + + it('flattens ANY_INTEGRAL (ANY_INT ∪ ANY_BIT)', () => { + const result = getVariableRestrictionType('ANY_INTEGRAL') + expect(result.definition).toBe('base-type') + expect(result.values).toEqual(expect.arrayContaining(['INT', 'BOOL', 'BYTE', 'DWORD'])) + }) }) diff --git a/src/backend/shared/debug/__tests__/modbus-rtu-transport.test.ts b/src/backend/shared/debug/__tests__/modbus-rtu-transport.test.ts index febf5d39e..ef4689040 100644 --- a/src/backend/shared/debug/__tests__/modbus-rtu-transport.test.ts +++ b/src/backend/shared/debug/__tests__/modbus-rtu-transport.test.ts @@ -72,10 +72,13 @@ describe('ModbusRtuTransport', () => { // getMd5Hash // ----------------------------------------------------------------------- describe('getMd5Hash', () => { - it('delegates to simulatorService.getMd5Hash', async () => { + it('delegates to simulatorService.getMd5Hash and reports LE byte order', async () => { + // The web simulator path reads MD5 from the built artifact + // (deterministic, no wire) and the emulated AVR is always LE, + // so the transport hard-codes `targetEndian: 'le'` here. mockGetMd5Hash.mockResolvedValue('abc123') const result = await transport.getMd5Hash() - expect(result).toBe('abc123') + expect(result).toEqual({ md5: 'abc123', targetEndian: 'le' }) expect(mockGetMd5Hash).toHaveBeenCalledTimes(1) }) }) diff --git a/src/backend/shared/debug/modbus-rtu-transport.ts b/src/backend/shared/debug/modbus-rtu-transport.ts index 180ee4c43..ac0a7ee5c 100644 --- a/src/backend/shared/debug/modbus-rtu-transport.ts +++ b/src/backend/shared/debug/modbus-rtu-transport.ts @@ -11,7 +11,7 @@ import { bytesToHex, hexToBytes } from '../../../frontend/utils/hex' import { simulatorService } from '../simulator' -import type { DebugSetResult, DebugTransport, DebugTransportResult } from './types' +import type { DebugSetResult, DebugTransport, DebugTransportResult, Md5ProbeResult } from './types' export class ModbusRtuTransport implements DebugTransport { async connect(): Promise { @@ -22,8 +22,13 @@ export class ModbusRtuTransport implements DebugTransport { simulatorService.disconnectDebugger() } - async getMd5Hash(): Promise { - return simulatorService.getMd5Hash() + async getMd5Hash(): Promise { + // The web simulator path reads its MD5 from the built artifact + // (deterministic, no transport involved), so byte-order detection + // doesn't have a wire signal to read. The emulated AVR is + // always little-endian, so hard-coding `'le'` is correct here. + const md5 = await simulatorService.getMd5Hash() + return { md5, targetEndian: 'le' } } async getVariablesList(indexes: number[]): Promise { diff --git a/src/backend/shared/debug/types.ts b/src/backend/shared/debug/types.ts index f09ece949..8b2ebe373 100644 --- a/src/backend/shared/debug/types.ts +++ b/src/backend/shared/debug/types.ts @@ -23,6 +23,19 @@ export interface DebugSetResult { error?: string } +/** + * Result of an MD5-probe call. The `md5` is the runtime's program hash; + * `targetEndian` is the byte order detected from the 2-byte sentinel the + * runtime writes into the response trailer via a native `uint16_t*` + * store (LE target writes `[0xAD, 0xDE]`, BE target writes `[0xDE, + * 0xAD]`). Renderer-side code uses `targetEndian` to drive the byte + * swap at the debugger's read / write boundaries. + */ +export interface Md5ProbeResult { + md5: string + targetEndian: 'le' | 'be' +} + /** * Common transport interface. Every debug transport implements these methods * so the polling loop and session management never know which transport is active. @@ -33,7 +46,7 @@ export interface DebugSetResult { export interface DebugTransport { connect(): Promise disconnect(): void - getMd5Hash(): Promise + getMd5Hash(): Promise getVariablesList(indexes: number[]): Promise setVariable(index: number, force: boolean, valueBuffer?: Uint8Array): Promise } diff --git a/src/backend/shared/ethercat/collect-used-iec-addresses.ts b/src/backend/shared/ethercat/collect-used-iec-addresses.ts deleted file mode 100644 index 0145b16b6..000000000 --- a/src/backend/shared/ethercat/collect-used-iec-addresses.ts +++ /dev/null @@ -1,41 +0,0 @@ -/** - * Collect every IEC address (e.g. `%QX0.0`, `%IW2`) currently in use across - * all remote devices in the project — Modbus TCP I/O points and EtherCAT - * channel mappings. Used to seed `generateDefaultChannelMappings` so newly - * added devices receive non-conflicting IEC locations. - * - * Typed structurally to accept both the schema-derived `PLCRemoteDevice` - * type and the store's slightly looser inferred type without coupling. - */ - -type RemoteDeviceForAddressCollection = { - modbusTcpConfig?: { - ioGroups?: Array<{ - ioPoints?: Array<{ iecLocation: string }> - }> - } - ethercatConfig?: { - devices?: Array<{ - channelMappings?: Array<{ iecLocation: string }> - }> - } -} - -export function collectUsedIecAddresses(remoteDevices: RemoteDeviceForAddressCollection[] | undefined): Set { - const addresses = new Set() - if (!remoteDevices) return addresses - - for (const rd of remoteDevices) { - for (const group of rd.modbusTcpConfig?.ioGroups ?? []) { - for (const point of group.ioPoints ?? []) { - addresses.add(point.iecLocation) - } - } - for (const dev of rd.ethercatConfig?.devices ?? []) { - for (const mapping of dev.channelMappings ?? []) { - addresses.add(mapping.iecLocation) - } - } - } - return addresses -} diff --git a/src/backend/shared/ethercat/esi-parser.ts b/src/backend/shared/ethercat/esi-parser.ts index 7592e26d6..4c0ce8b9b 100644 --- a/src/backend/shared/ethercat/esi-parser.ts +++ b/src/backend/shared/ethercat/esi-parser.ts @@ -307,7 +307,6 @@ export function generateDefaultChannelMappings( mappings.push({ channelId: channel.id, iecLocation: candidate, - userEdited: false, alias: '', }) diff --git a/src/backend/shared/ethercat/ethercat-task-helpers.ts b/src/backend/shared/ethercat/ethercat-task-helpers.ts deleted file mode 100644 index abc42cc5e..000000000 --- a/src/backend/shared/ethercat/ethercat-task-helpers.ts +++ /dev/null @@ -1,19 +0,0 @@ -/** - * Generates a system task name from an EtherCAT device name. - * Example: "Master1" -> "EtherCAT_Master1" - */ -export function ethercatTaskName(deviceName: string): string { - return `EtherCAT_${deviceName}` -} - -/** - * Converts a cycle time in microseconds to an IEC 61131-3 time interval string. - * Examples: 1000 -> "T#1ms", 500 -> "T#500us", 20000 -> "T#20ms" - */ -export function cycleTimeUsToIecInterval(cycleTimeUs: number): string { - if (cycleTimeUs <= 0) return 'T#1ms' - if (cycleTimeUs % 1000 === 0) { - return `T#${cycleTimeUs / 1000}ms` - } - return `T#${cycleTimeUs}us` -} diff --git a/src/backend/shared/ethercat/generate-ethercat-config.ts b/src/backend/shared/ethercat/generate-ethercat-config.ts index 7ee5585ed..2a6b9c4ee 100644 --- a/src/backend/shared/ethercat/generate-ethercat-config.ts +++ b/src/backend/shared/ethercat/generate-ethercat-config.ts @@ -6,7 +6,6 @@ import type { SDOConfigurationEntry, } from '@root/middleware/shared/ports/esi-types' -import { ethercatTaskName } from './ethercat-task-helpers' // Runtime JSON interfaces (snake_case for plugin consumption) @@ -94,8 +93,9 @@ interface RuntimeMaster { interface: string cycle_time_us: number watchdog_timeout_cycles: number - task_name?: string - task_cycle_time_us?: number + /** SCHED_FIFO priority (1-99) the bus thread runs at. The runtime + * defaults to 90 if absent so existing configs keep working. */ + task_priority?: number } interface RuntimeDiagnostics { @@ -320,14 +320,13 @@ export const generateEthercatConfig = (remoteDevices: PLCRemoteDevice[] | undefi if (slaves.length === 0) continue const cycleTimeUs = remoteDevice.ethercatConfig?.masterConfig?.cycleTimeUs ?? 1000 - const taskName = ethercatTaskName(remoteDevice.name) + const taskPriority = remoteDevice.ethercatConfig?.masterConfig?.taskPriority ?? 90 const master: RuntimeMaster = { interface: remoteDevice.ethercatConfig?.masterConfig?.networkInterface || 'eth0', cycle_time_us: cycleTimeUs, watchdog_timeout_cycles: remoteDevice.ethercatConfig?.masterConfig?.watchdogTimeoutCycles ?? 3, - task_name: taskName, - task_cycle_time_us: cycleTimeUs, + task_priority: taskPriority, } rootEntries.push({ diff --git a/src/backend/shared/ethercat/index.ts b/src/backend/shared/ethercat/index.ts index f5aeaf4c6..9db0a61bc 100644 --- a/src/backend/shared/ethercat/index.ts +++ b/src/backend/shared/ethercat/index.ts @@ -1,10 +1,8 @@ -export { collectUsedIecAddresses } from './collect-used-iec-addresses' export { createDefaultSlaveConfig, DEFAULT_SLAVE_CONFIG } from './device-config-defaults' export { countMatchedDevices, getBestMatchQuality, matchDevicesToRepository } from './device-matcher' export { buildChannelInfo, deriveSlaveType, persistPdos } from './enrich-device-data' export { esiTypeToIecType, pdoToChannels } from './esi-parser' export { parseESIDeviceFull, parseESILight } from './esi-parser-main' -export { cycleTimeUsToIecInterval, ethercatTaskName } from './ethercat-task-helpers' export { generateEthercatConfig } from './generate-ethercat-config' export { extractDefaultSdoConfigurations } from './sdo-config-defaults' export { validateEthercatConfig } from './validate-ethercat-config' diff --git a/src/backend/shared/library/__tests__/build-pipeline.test.ts b/src/backend/shared/library/__tests__/build-pipeline.test.ts new file mode 100644 index 000000000..8fddd3026 --- /dev/null +++ b/src/backend/shared/library/__tests__/build-pipeline.test.ts @@ -0,0 +1,797 @@ +/** + * Tests for the library build pipeline. + * + * The XmlGenerator is mocked because it depends on the frontend + * xml-generator helpers; we exercise the orchestration here, not + * actual XML serialisation (covered by xml-generator's own tests). + * Strucpp is mocked via the runtime's test escape hatch — the build + * pipeline must remain pure (no real strucpp load) for these tests. + */ + +import type { PLCProject } from '../../types/PLC/open-plc' +import type { StrucppRuntime } from '../strucpp-runtime' + +// --------------------------------------------------------------------------- +// Mocks +// --------------------------------------------------------------------------- + +const mockXmlGenerator = jest.fn() +jest.mock('../../utils/PLC/xml-generator', () => ({ + XmlGenerator: (...args: unknown[]) => mockXmlGenerator(...args), +})) + +// Import after mocks +import { __setStrucppRuntimeForTests } from '../strucpp-runtime' +import { + __TESTING__, + composeVerificationProject, + libraryBuildFromTranspiledSt, + prepareXmlForLibraryBuild, +} from '../build-pipeline' + +const STUB = __TESTING__ +const { parseLibraryManifest, stubProgramFor } = __TESTING__ + +function makeStrucppStub( + overrides: Partial> = {}, +): StrucppRuntime { + return { + compile: jest.fn(), + formatDiagnostic: jest.fn(), + buildSourceMap: jest.fn(), + getVersion: jest.fn(), + importCodesysLibraryFromBytes: jest.fn(), + loadStlibFromString: jest.fn(), + compileStlib: jest.fn().mockReturnValue({ success: true, archive: { kind: 'fake-archive' } }), + ...overrides, + } as unknown as StrucppRuntime +} + +function makeLibraryProject(overrides: Partial = {}): PLCProject { + return { + meta: { name: 'demo_lib', type: 'plc-library' }, + data: { + pous: [ + { + type: 'function-block', + data: { + name: 'TankController', + language: 'st', + variables: [], + body: { language: 'st', value: '' }, + documentation: '', + }, + }, + ], + dataTypes: [], + configuration: { resource: { tasks: [], instances: [], globalVariables: [] } }, + libraries: [], + ...overrides, + } as PLCProject['data'], + } +} + +const VALID_MANIFEST_JSON = JSON.stringify({ + name: 'demo_lib', + version: '1.0.0', + namespace: 'demo_lib', + description: 'optional extra field', +}) + +beforeEach(() => { + jest.clearAllMocks() + __setStrucppRuntimeForTests(null) +}) + +afterAll(() => { + __setStrucppRuntimeForTests(null) +}) + +// --------------------------------------------------------------------------- +// parseLibraryManifest +// --------------------------------------------------------------------------- + +describe('parseLibraryManifest', () => { + it('parses a well-formed manifest and exposes extra fields', () => { + const res = parseLibraryManifest(VALID_MANIFEST_JSON) + expect(res.ok).toBe(true) + if (!res.ok) return + expect(res.manifest.name).toBe('demo_lib') + expect(res.manifest.version).toBe('1.0.0') + expect(res.manifest.namespace).toBe('demo_lib') + expect(res.manifest.extra.description).toBe('optional extra field') + }) + + it('rejects invalid JSON with the parser error inlined', () => { + const res = parseLibraryManifest('{ not json') + expect(res.ok).toBe(false) + if (res.ok) return + expect(res.errors[0]).toMatch(/library\.json is not valid JSON/) + }) + + it('rejects non-Error throwables from JSON.parse', () => { + // Force JSON.parse to throw a non-Error value to exercise the + // String(err) fallback branch. + const original = JSON.parse + const spy = jest.spyOn(JSON, 'parse').mockImplementation(() => { + throw 'unexpected token' + }) + try { + const res = parseLibraryManifest('whatever') + expect(res.ok).toBe(false) + if (res.ok) return + expect(res.errors[0]).toContain('unexpected token') + } finally { + spy.mockRestore() + // Sanity: restoration brings the real parser back. + expect(JSON.parse).toBe(original) + } + }) + + it('rejects JSON arrays', () => { + const res = parseLibraryManifest('[]') + expect(res.ok).toBe(false) + if (res.ok) return + expect(res.errors).toContain('library.json must be a JSON object') + }) + + it('rejects JSON null', () => { + const res = parseLibraryManifest('null') + expect(res.ok).toBe(false) + }) + + it('rejects JSON scalars', () => { + const res = parseLibraryManifest('42') + expect(res.ok).toBe(false) + }) + + it('accumulates errors for all missing required fields at once', () => { + const res = parseLibraryManifest('{}') + expect(res.ok).toBe(false) + if (res.ok) return + // `manifest.name` flows through the shared `checkPathId` helper, + // so the error message is the same shape `validatePathId` would + // throw at install time — single source of truth for path-id + // rules. + expect(res.errors).toEqual( + expect.arrayContaining([ + 'manifest.name is required and must be a non-empty string', + 'manifest.version must be a non-empty string', + 'manifest.namespace must be a non-empty string', + ]), + ) + }) + + it('rejects empty-string fields just like missing ones', () => { + const res = parseLibraryManifest(JSON.stringify({ name: '', version: '', namespace: '' })) + expect(res.ok).toBe(false) + if (res.ok) return + expect(res.errors).toHaveLength(3) + }) + + it('rejects names with characters the library-manager rejects at install time', () => { + // The user hit this on a freshly-built library: strucpp's + // `compileStlib` accepted "Semaphore Package" as the manifest + // name, but the library manager later refused to install the + // `.stlib` because the name contains a space. Validate against + // the same `[a-zA-Z0-9._-]` rule here so the build fails up + // front instead of producing a `.stlib` that can't be installed. + const res = parseLibraryManifest( + JSON.stringify({ name: 'Semaphore Package', version: '0.1.0', namespace: 'semaphore_pkg' }), + ) + expect(res.ok).toBe(false) + if (res.ok) return + expect(res.errors[0]).toMatch(/manifest\.name contains disallowed characters/) + }) + + it('accepts safe names: letters, digits, dot, hyphen, underscore', () => { + const res = parseLibraryManifest( + JSON.stringify({ name: 'demo-lib_1.0', version: '0.1.0', namespace: 'demo_lib' }), + ) + expect(res.ok).toBe(true) + }) + + it('rejects a namespace that is not a valid C++ identifier', () => { + const res = parseLibraryManifest( + JSON.stringify({ name: 'x', version: '1.0', namespace: '1bad-namespace' }), + ) + expect(res.ok).toBe(false) + if (res.ok) return + expect(res.errors[0]).toMatch(/manifest\.namespace must be a valid C\+\+ identifier/) + }) + + it('accepts namespaces starting with underscore', () => { + const res = parseLibraryManifest( + JSON.stringify({ name: 'x', version: '1.0', namespace: '_underscore_first' }), + ) + expect(res.ok).toBe(true) + }) +}) + +// --------------------------------------------------------------------------- +// stubProgramFor +// --------------------------------------------------------------------------- + +describe('stubProgramFor', () => { + it('appends a `main` program POU with one INT local and a non-empty body', () => { + const project = makeLibraryProject() + const stubbed = stubProgramFor(project) + + expect(stubbed.data.pous).toHaveLength(2) + const stub = stubbed.data.pous.find((p) => p.type === 'program') + expect(stub).toBeDefined() + if (!stub || stub.type !== 'program') throw new Error('stub missing') + expect(stub.data.name).toBe(STUB.STUB_PROGRAM_NAME) + expect(stub.data.name).toBe('main') + expect(stub.data.language).toBe('st') + expect(stub.data.variables).toEqual([ + expect.objectContaining({ + name: 'LocalVar', + class: 'local', + type: { definition: 'base-type', value: 'INT' }, + }), + ]) + expect(stub.data.body).toEqual({ language: 'st', value: 'LocalVar := 3;' }) + }) + + it('appends a stub task and a stub program instance binding them together', () => { + const project = makeLibraryProject() + const stubbed = stubProgramFor(project) + const { tasks, instances } = stubbed.data.configuration.resource + + expect(tasks).toEqual([ + expect.objectContaining({ + name: STUB.STUB_TASK_NAME, + triggering: 'Cyclic', + interval: 'T#100ms', + priority: 1, + }), + ]) + expect(instances).toEqual([ + expect.objectContaining({ + name: STUB.STUB_INSTANCE_NAME, + program: STUB.STUB_PROGRAM_NAME, + task: STUB.STUB_TASK_NAME, + }), + ]) + }) + + it('preserves the original POU list, tasks, instances, and globalVariables', () => { + const project = makeLibraryProject({ + configuration: { + resource: { + tasks: [{ name: 'preExisting', triggering: 'Cyclic', interval: 'T#50ms', priority: 0 }], + instances: [], + globalVariables: [ + { + name: 'preExistingGlobal', + type: { definition: 'base-type', value: 'INT' }, + location: '', + documentation: '', + initialValue: null, + }, + ], + }, + }, + }) + const stubbed = stubProgramFor(project) + expect(stubbed.data.configuration.resource.tasks).toHaveLength(2) + expect(stubbed.data.configuration.resource.tasks[0]?.name).toBe('preExisting') + expect(stubbed.data.configuration.resource.globalVariables[0]?.name).toBe('preExistingGlobal') + }) + + it('keeps meta untouched (the meta type is rewritten only by composeVerificationProject)', () => { + const project = makeLibraryProject() + const stubbed = stubProgramFor(project) + expect(stubbed.meta).toEqual(project.meta) + }) +}) + +// --------------------------------------------------------------------------- +// prepareXmlForLibraryBuild +// --------------------------------------------------------------------------- + +describe('prepareXmlForLibraryBuild', () => { + it('returns a structured error when the manifest is invalid', () => { + const result = prepareXmlForLibraryBuild(makeLibraryProject(), '{ broken') + expect('error' in result).toBe(true) + if (!('error' in result)) return + expect(result.error).toContain('library.json is invalid') + expect(mockXmlGenerator).not.toHaveBeenCalled() + }) + + it('formats multi-line error reports with one bullet per validation issue', () => { + const result = prepareXmlForLibraryBuild(makeLibraryProject(), '{}') + if (!('error' in result)) throw new Error('expected error') + const bulletCount = (result.error.match(/•/g) ?? []).length + expect(bulletCount).toBeGreaterThanOrEqual(3) + }) + + it('returns a structured error when XML generation fails', () => { + mockXmlGenerator.mockReturnValue({ ok: false, message: 'no main pou', data: undefined }) + const result = prepareXmlForLibraryBuild(makeLibraryProject(), VALID_MANIFEST_JSON) + expect('error' in result).toBe(true) + if (!('error' in result)) return + expect(result.error).toContain('no main pou') + }) + + it('falls back to "unknown error" when XmlGenerator omits a message', () => { + mockXmlGenerator.mockReturnValue({ ok: false, data: undefined }) + const result = prepareXmlForLibraryBuild(makeLibraryProject(), VALID_MANIFEST_JSON) + if (!('error' in result)) throw new Error('expected error') + expect(result.error).toContain('unknown error') + }) + + it('treats ok=true but empty data as an error', () => { + mockXmlGenerator.mockReturnValue({ ok: true, message: 'XML generated', data: '' }) + const result = prepareXmlForLibraryBuild(makeLibraryProject(), VALID_MANIFEST_JSON) + expect('error' in result).toBe(true) + }) + + it('returns xml + knownPous (including stub) + parsed manifest on success', () => { + mockXmlGenerator.mockReturnValue({ ok: true, message: 'XML generated', data: '' }) + const result = prepareXmlForLibraryBuild(makeLibraryProject(), VALID_MANIFEST_JSON) + expect('xml' in result).toBe(true) + if (!('xml' in result)) return + expect(result.xml).toBe('') + expect(result.manifest.name).toBe('demo_lib') + + // POUs from the project + the stub program + const names = result.knownPous.map((p) => p.name) + expect(names).toEqual(['TankController', STUB.STUB_PROGRAM_NAME]) + + const kinds = result.knownPous.map((p) => p.kind) + expect(kinds).toEqual(['FUNCTION_BLOCK', 'PROGRAM']) + }) + + it('maps each POU type to the correct splitter kind', () => { + mockXmlGenerator.mockReturnValue({ ok: true, data: '' }) + const project = makeLibraryProject({ + pous: [ + { + type: 'function', + data: { + name: 'Add2', + language: 'st', + returnType: 'INT', + variables: [], + body: { language: 'st', value: '' }, + documentation: '', + }, + }, + { + type: 'function-block', + data: { + name: 'Tank', + language: 'st', + variables: [], + body: { language: 'st', value: '' }, + documentation: '', + }, + }, + ], + }) + const result = prepareXmlForLibraryBuild(project, VALID_MANIFEST_JSON) + if (!('knownPous' in result)) throw new Error('expected success') + const byName = Object.fromEntries(result.knownPous.map((p) => [p.name, p.kind])) + expect(byName).toEqual({ Add2: 'FUNCTION', Tank: 'FUNCTION_BLOCK', main: 'PROGRAM' }) + }) +}) + +// --------------------------------------------------------------------------- +// libraryBuildFromTranspiledSt +// --------------------------------------------------------------------------- + +describe('libraryBuildFromTranspiledSt', () => { + const manifest = { + name: 'demo_lib', + version: '1.0.0', + namespace: 'demo_lib', + extra: {} as Record, + } + + it('returns a structured error when the splitter rejects the program.st', () => { + const strucpp = makeStrucppStub() + __setStrucppRuntimeForTests(strucpp) + // Empty knownPous makes the splitter return null. + const res = libraryBuildFromTranspiledSt('PROGRAM main\nEND_PROGRAM\n', [], manifest) + expect(res.success).toBe(false) + expect(res.errors[0]?.message).toMatch(/Could not split program\.st/) + expect(strucpp.compileStlib).not.toHaveBeenCalled() + }) + + it('refuses when the library has no real POUs (only the stub)', () => { + const strucpp = makeStrucppStub() + __setStrucppRuntimeForTests(strucpp) + const programSt = 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + const res = libraryBuildFromTranspiledSt( + programSt, + [{ name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }], + manifest, + ) + expect(res.success).toBe(false) + expect(res.errors[0]?.message).toMatch(/no functions, function blocks, or data types/) + expect(strucpp.compileStlib).not.toHaveBeenCalled() + }) + + it('refuses when only globals / config slices remain after dropping the stub', () => { + const strucpp = makeStrucppStub() + __setStrucppRuntimeForTests(strucpp) + const programSt = + 'VAR_GLOBAL\n G : INT;\nEND_VAR\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + const res = libraryBuildFromTranspiledSt( + programSt, + [{ name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }], + manifest, + ) + expect(res.success).toBe(false) + expect(res.errors[0]?.message).toMatch(/no functions, function blocks, or data types/) + }) + + it('drops the stub program file and forwards the remaining POUs to compileStlib', () => { + const compileStlib = jest.fn().mockReturnValue({ success: true, archive: { kind: 'fake' } }) + const strucpp = makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }) + __setStrucppRuntimeForTests(strucpp) + + const programSt = + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + const res = libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + ) + + expect(res.success).toBe(true) + expect(res.archive).toEqual({ kind: 'fake' }) + expect(res.errors).toEqual([]) + + const [sources, opts] = compileStlib.mock.calls[0] + const filenames = (sources as Array<{ fileName: string }>).map((s) => s.fileName) + expect(filenames).toEqual(['Tank.st']) + expect(filenames).not.toContain(STUB.STUB_SPLIT_FILENAME) + expect(opts).toEqual({ name: 'demo_lib', version: '1.0.0', namespace: 'demo_lib' }) + }) + + it('drops `_config.st` so strucpp does not error on the stub configuration', () => { + // The stub program (which the splitter recognises and the + // pipeline drops) is referenced by xml2st's emitted + // CONFIGURATION block. Leaving `_config.st` in the strucpp + // inputs makes strucpp emit "Unknown program type 'MAIN'" + // diagnostics because the stub source isn't there anymore. + // Verify the pipeline strips the config slice up front. + const compileStlib = jest.fn().mockReturnValue({ success: true, archive: {} }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + const programSt = + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + '\n' + + 'CONFIGURATION Config0\n' + + ' RESOURCE Res0 ON PLC\n' + + ' TASK MainTask(INTERVAL := T#100ms, PRIORITY := 0);\n' + + ' PROGRAM MainInstance WITH MainTask : main;\n' + + ' END_RESOURCE\n' + + 'END_CONFIGURATION\n' + + libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + ) + + const sources = compileStlib.mock.calls[0][0] as Array<{ fileName: string }> + const filenames = sources.map((s) => s.fileName) + expect(filenames).not.toContain('_config.st') + expect(filenames).not.toContain(STUB.STUB_SPLIT_FILENAME) + expect(filenames).toContain('Tank.st') + }) + + it('infers category tags from the splitter filename convention', () => { + const compileStlib = jest.fn().mockReturnValue({ success: true, archive: {} }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + const programSt = + 'TYPE\n Color : (RED, GREEN);\nEND_TYPE\n' + + '\n' + + 'VAR_GLOBAL\n G : INT;\nEND_VAR\n' + + '\n' + + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + ) + + const sources = compileStlib.mock.calls[0][0] as Array<{ + fileName: string + category?: string + }> + const byName = Object.fromEntries(sources.map((s) => [s.fileName, s.category])) + expect(byName).toEqual({ + '_types.st': 'data-type', + '_globals.st': 'globals', + 'Tank.st': undefined, + }) + }) + + it('decorates the archive with description / displayName / per-POU docs / dependencies', () => { + const archive = { + manifest: { + name: 'demo_lib', + version: '1.0.0', + namespace: 'demo_lib', + functions: [{ name: 'Add2' }], + functionBlocks: [{ name: 'Tank' }], + types: [{ name: 'Color' }], + }, + dependencies: [], + } + const compileStlib = jest.fn().mockReturnValue({ success: true, archive }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + const programSt = + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + { + name: 'demo_lib', + version: '1.0.0', + namespace: 'demo_lib', + extra: { description: 'a demo lib', displayName: 'Demo Library' }, + }, + { + pouDocs: { Tank: 'controls a tank', Add2: 'adds two ints', Color: 'colour enum' }, + dependencyRefs: [{ name: 'oscat', version: '3.3.0' }], + }, + ) + + expect(archive.manifest).toMatchObject({ + description: 'a demo lib', + displayName: 'Demo Library', + functions: [{ name: 'Add2', documentation: 'adds two ints' }], + functionBlocks: [{ name: 'Tank', documentation: 'controls a tank' }], + types: [{ name: 'Color', documentation: 'colour enum' }], + }) + expect(archive.dependencies).toEqual([{ name: 'oscat', version: '3.3.0' }]) + }) + + it('filters C/C++ POUs from strucpp inputs and attaches them as `cppBlocks` on the archive', () => { + // The library has one ST FB (`Tank`) and one C/C++ FB (`SmartGate`). + // The user's `SmartGate` arrived here as an ST stub (preprocessPous + // converts C++ → ST stub + `originalCppPous` sidecar on the + // renderer side), so the splitter sees `SmartGate.st` in + // program.st. The build pipeline must drop that source from the + // strucpp inputs (strucpp's library compiler has no + // `pouIncludes` to resolve the c_blocks.h externs the stub + // references) and stamp the original C++ onto the archive. + const archive: { manifest: { name: string }; dependencies: unknown[]; cppBlocks?: unknown[] } = { + manifest: { name: 'demo_lib' }, + dependencies: [], + } + const compileStlib = jest.fn().mockReturnValue({ success: true, archive }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + const programSt = + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'FUNCTION_BLOCK SmartGate\n VAR x : BOOL; END_VAR\n x := TRUE;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: 'SmartGate', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + { + cppBlocks: [ + { + name: 'SmartGate', + code: 'void setup() {}\nvoid loop() {}', + variables: [{ name: 'x', class: 'input', type: { definition: 'base-type', value: 'BOOL' } }], + }, + ], + }, + ) + + // SmartGate.st must be filtered out of strucpp's input list. + const sources = compileStlib.mock.calls[0][0] as Array<{ fileName: string }> + const filenames = sources.map((s) => s.fileName) + expect(filenames).toContain('Tank.st') + expect(filenames).not.toContain('SmartGate.st') + expect(filenames).not.toContain(STUB.STUB_SPLIT_FILENAME) + + // SmartGate rides through on `archive.cppBlocks` verbatim. + expect(archive.cppBlocks).toEqual([ + { + name: 'SmartGate', + code: 'void setup() {}\nvoid loop() {}', + variables: [{ name: 'x', class: 'input', type: { definition: 'base-type', value: 'BOOL' } }], + }, + ]) + }) + + it('accepts a library that ships only C/C++ blocks (no ST/IL POUs)', () => { + // Edge case: the library has one C++ FB and nothing else. The + // ST/IL source list is empty after filtering, but `cppBlocks` + // is non-empty so the build still produces a valid archive. + const archive = { manifest: { name: 'cpp_only_lib' }, dependencies: [] } + const compileStlib = jest.fn().mockReturnValue({ success: true, archive }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + const programSt = + 'FUNCTION_BLOCK CppOnly\n VAR x : BOOL; END_VAR\n x := TRUE;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + const res = libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'CppOnly', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + { ...manifest, name: 'cpp_only_lib', namespace: 'cpp_only_lib' }, + { + cppBlocks: [ + { name: 'CppOnly', code: 'void setup() {}\nvoid loop() {}', variables: [] }, + ], + }, + ) + + expect(res.success).toBe(true) + }) + + it('matches POU docs case-insensitively (xml2st upper-cases identifiers)', () => { + const archive = { + manifest: { + name: 'demo_lib', + functions: [], + functionBlocks: [{ name: 'TANK' }], + types: [], + }, + dependencies: [], + } + const compileStlib = jest.fn().mockReturnValue({ success: true, archive }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + libraryBuildFromTranspiledSt( + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n', + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + { pouDocs: { Tank: 'tank doc' } }, + ) + + expect(archive.manifest.functionBlocks[0]).toMatchObject({ documentation: 'tank doc' }) + }) + + it('forwards dependencyArchives to strucpp compileStlib when supplied', () => { + const fakeDepArchive = { manifest: { name: 'oscat' } } + const compileStlib = jest.fn().mockReturnValue({ success: true, archive: { manifest: { functions: [] } } }) + __setStrucppRuntimeForTests( + makeStrucppStub({ compileStlib: compileStlib as unknown as StrucppRuntime['compileStlib'] }), + ) + + libraryBuildFromTranspiledSt( + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n', + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + { dependencyArchives: [fakeDepArchive] }, + ) + + const opts = compileStlib.mock.calls[0][1] as { dependencies?: unknown[] } + expect(opts.dependencies).toEqual([fakeDepArchive]) + }) + + it('forwards compile errors verbatim and propagates success=false', () => { + const errors = [{ message: 'something exploded', line: 4, file: 'Tank.st' }] + __setStrucppRuntimeForTests( + makeStrucppStub({ + compileStlib: jest.fn().mockReturnValue({ success: false, errors }) as unknown as StrucppRuntime['compileStlib'], + }), + ) + + const programSt = + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + const res = libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + ) + expect(res.success).toBe(false) + expect(res.errors).toEqual(errors) + }) + + it('coerces a missing strucpp errors field to an empty array', () => { + __setStrucppRuntimeForTests( + makeStrucppStub({ + compileStlib: jest.fn().mockReturnValue({ success: true, archive: {} }) as unknown as StrucppRuntime['compileStlib'], + }), + ) + + const programSt = + 'FUNCTION_BLOCK Tank\n VAR sp : INT; END_VAR\n sp := 1;\nEND_FUNCTION_BLOCK\n' + + '\n' + + 'PROGRAM main\n VAR LocalVar : INT; END_VAR\n LocalVar := 3;\nEND_PROGRAM\n' + + const res = libraryBuildFromTranspiledSt( + programSt, + [ + { name: 'Tank', kind: 'FUNCTION_BLOCK' }, + { name: STUB.STUB_PROGRAM_NAME, kind: 'PROGRAM' }, + ], + manifest, + ) + expect(res.errors).toEqual([]) + }) +}) + +// --------------------------------------------------------------------------- +// composeVerificationProject +// --------------------------------------------------------------------------- + +describe('composeVerificationProject', () => { + it('returns a stubbed project tagged plc-project (not plc-library)', () => { + const project = makeLibraryProject() + const verification = composeVerificationProject(project) + + expect(verification.meta.type).toBe('plc-project') + expect(verification.meta.name).toBe(project.meta.name) + expect(verification.data.pous).toHaveLength(2) + expect(verification.data.configuration.resource.tasks).toHaveLength(1) + expect(verification.data.configuration.resource.instances).toHaveLength(1) + }) +}) diff --git a/src/backend/shared/library/__tests__/program-build-helpers.test.ts b/src/backend/shared/library/__tests__/program-build-helpers.test.ts new file mode 100644 index 000000000..d80838574 --- /dev/null +++ b/src/backend/shared/library/__tests__/program-build-helpers.test.ts @@ -0,0 +1,158 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (C) 2026 Autonomy / OpenPLC Project +/** + * Tests for the pure helpers shared by every program-build + * orchestrator (`buildKnownPous`, `formatErrorWithPouContext`). + * + * The compile pipeline depends on these to turn project state into + * the splitter's POU descriptor and to enrich strucpp's gcc-style + * diagnostics with click-to-open context. These helpers are pure + * functions with no I/O so they're tested directly. + */ +import type * as strucpp from 'strucpp' + +import type { PLCPou } from '../../types/PLC/open-plc' +import { buildKnownPous, formatErrorWithPouContext } from '../program-build-helpers' + +type StrucppCompileError = strucpp.CompileError +type StrucppFormatDiagnostic = typeof strucpp.formatDiagnostic +type StrucppSourceMap = ReturnType + +type Language = PLCPou['data']['language'] + +// The body's `value` shape is language-specific (string for st/il/ +// python/cpp/sfc; flow schemas for ld/fbd) but `buildKnownPous` +// reads only `type`, `data.name`, and `data.language` — so the +// fixtures can lean on `as unknown as PLCPou` instead of building +// fully-typed bodies for every supported language. +const program = (name: string, language: Language = 'st'): PLCPou => + ({ + type: 'program', + data: { name, language, variables: [], body: { language, value: '' }, documentation: '' }, + }) as unknown as PLCPou + +const fn = (name: string, language: Language = 'st'): PLCPou => + ({ + type: 'function', + data: { + name, + language, + returnType: 'INT', + variables: [], + body: { language, value: '' }, + documentation: '', + }, + }) as unknown as PLCPou + +const fb = (name: string, language: Language = 'st'): PLCPou => + ({ + type: 'function-block', + data: { name, language, variables: [], body: { language, value: '' }, documentation: '' }, + }) as unknown as PLCPou + +describe('buildKnownPous', () => { + it('returns an empty array for an empty project', () => { + expect(buildKnownPous([])).toEqual([]) + }) + + it('maps each POU type to the matching strucpp `kind`', () => { + const known = buildKnownPous([program('Main'), fn('Helper'), fb('Counter')]) + expect(known).toEqual([ + { name: 'Main', kind: 'PROGRAM', language: 'st' }, + { name: 'Helper', kind: 'FUNCTION', language: 'st' }, + { name: 'Counter', kind: 'FUNCTION_BLOCK', language: 'st' }, + ]) + }) + + it('passes the POU language straight through', () => { + // The splitter uses `language` to decide which serialised body + // shape to expect for each entry. Round-tripping every supported + // language locks in the contract so a future enum change here + // forces a deliberate update. + const languages: Language[] = ['st', 'il', 'ld', 'fbd', 'sfc', 'python', 'cpp'] + const known = buildKnownPous(languages.map((lang) => program(`P_${lang}`, lang))) + expect(known.map((k) => k.language)).toEqual(languages) + }) + + it('preserves declaration order', () => { + const known = buildKnownPous([fn('B'), program('A'), fb('C')]) + expect(known.map((k) => k.name)).toEqual(['B', 'A', 'C']) + }) +}) + +// Minimal strucpp diagnostic fixture — only the fields the helper +// reads. The formatter is stubbed to return a predictable suffix so +// assertions focus on the prefix the helper prepends. +const baseError: StrucppCompileError = { + message: 'Cannot assign WSTRING to BOOL', + line: 0, + column: 0, + severity: 'error', +} + +const fakeFormatDiagnostic: StrucppFormatDiagnostic = (err, _sourceMap, _opts) => `` +const fakeSourceMap = {} as unknown as StrucppSourceMap + +describe('formatErrorWithPouContext', () => { + it('falls back to plain formatDiagnostic when no POU context is attached', () => { + // Errors in synthetic _types.st / _config.st or pre-split bail + // paths arrive without pouName; the helper must not prepend an + // unknown bracket and must not crash. + const out = formatErrorWithPouContext(baseError, fakeFormatDiagnostic, fakeSourceMap) + expect(out).toBe('') + }) + + it('prepends [ / body line N] for body errors', () => { + const err: StrucppCompileError = { ...baseError, pouName: 'Main', section: 'body', bodyLine: 7 } + const out = formatErrorWithPouContext(err, fakeFormatDiagnostic, fakeSourceMap) + expect(out).toBe('[Main / body line 7]\n') + }) + + it('prepends [ / variable ] when a var-block error names the variable', () => { + const err: StrucppCompileError = { + ...baseError, + pouName: 'Main', + section: 'var-block', + variableName: 'speed', + } + const out = formatErrorWithPouContext(err, fakeFormatDiagnostic, fakeSourceMap) + expect(out).toBe('[Main / variable speed]\n') + }) + + it('falls back to var-block line prefix when no variable name is available', () => { + // Some var-block errors fire before the parser recovers a name + // (e.g. malformed declaration); the helper still surfaces the + // POU + line so the user can locate the offending text. + const err: StrucppCompileError = { ...baseError, pouName: 'Main', section: 'var-block', line: 4 } + const out = formatErrorWithPouContext(err, fakeFormatDiagnostic, fakeSourceMap) + expect(out).toBe('[Main / variables, line 4]\n') + }) + + it('falls back to a bare [] prefix when section is missing', () => { + // Errors that strucpp attributes to a POU but not to a specific + // section (rare — happens for cross-POU semantic errors); still + // worth the click-to-open context. + const err: StrucppCompileError = { ...baseError, pouName: 'Main' } + const out = formatErrorWithPouContext(err, fakeFormatDiagnostic, fakeSourceMap) + expect(out).toBe('[Main]\n') + }) + + it('falls back to bare [] for body errors missing the bodyLine', () => { + // Defensive: if `section === 'body'` but `bodyLine` is undefined, + // we can't render a useful line number — degrade to the + // POU-only prefix instead of writing `body line undefined`. + const err: StrucppCompileError = { ...baseError, pouName: 'Main', section: 'body' } + const out = formatErrorWithPouContext(err, fakeFormatDiagnostic, fakeSourceMap) + expect(out).toBe('[Main]\n') + }) + + it('passes `preferBodyLine: true` to the format-diagnostic call', () => { + // The body-line preference is what keeps the user-visible line + // numbers consistent between the prefix the helper writes and + // the gcc-style snippet strucpp emits. Verifying it here means + // a future refactor that drops the option triggers a regression. + const spy = jest.fn>(() => '') + formatErrorWithPouContext(baseError, spy as unknown as StrucppFormatDiagnostic, fakeSourceMap) + expect(spy).toHaveBeenCalledWith(baseError, fakeSourceMap, { preferBodyLine: true }) + }) +}) diff --git a/src/backend/shared/library/__tests__/program-build-pipeline.test.ts b/src/backend/shared/library/__tests__/program-build-pipeline.test.ts new file mode 100644 index 000000000..8d9be81e6 --- /dev/null +++ b/src/backend/shared/library/__tests__/program-build-pipeline.test.ts @@ -0,0 +1,313 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (C) 2026 Autonomy / OpenPLC Project +/** + * Tests for the program-build pipeline. + * + * The pipeline orchestrates strucpp's compile / formatDiagnostic / + * buildSourceMap plus the ST splitter into a single result the + * Electron editor and the web editor both consume. Both + * dependencies are mocked here — strucpp because its ESM module is + * incompatible with Jest's CJS transform, the splitter because the + * pipeline's behaviour around split-vs-monolithic is what we want + * to lock in independently of the splitter's real parse rules. + */ +import type * as strucpp from 'strucpp' + +import type { KnownPou } from '../../utils/PLC/split-program-st' +import type { ProgramBuildPipelineOptions } from '../program-build-pipeline' + +// --- Mocks ---------------------------------------------------------------- + +const splitProgramSt = jest.fn, never[]>() +jest.mock('../../utils/PLC/split-program-st', () => ({ + splitProgramSt: (...args: unknown[]) => splitProgramSt(...(args as never[])), +})) + +type CompileResult = ReturnType +const strucppCompile = jest.fn>() +const strucppFormatDiagnostic = jest.fn>( + (err) => ``, +) +const strucppBuildSourceMap = jest.fn>(() => ({})) + +jest.mock('../strucpp-runtime', () => ({ + loadStrucpp: () => ({ + compile: strucppCompile, + formatDiagnostic: strucppFormatDiagnostic, + buildSourceMap: strucppBuildSourceMap, + }), +})) + +// --- Imports after mocks set up ------------------------------------------ + +// eslint-disable-next-line import/first +import { runProgramBuildPipeline } from '../program-build-pipeline' + +// --- Helpers -------------------------------------------------------------- + +const pou = (name: string, kind: KnownPou['kind'] = 'PROGRAM'): KnownPou => ({ name, kind, language: 'st' }) + +const baseOpts: ProgramBuildPipelineOptions = { + source: 'PROGRAM Main\nVAR x : INT; END_VAR\nEND_PROGRAM', + md5: 'cafebabe', + pous: [pou('Main')], + libraries: [], + missingLibraries: [], + hasCBlocks: false, +} + +// Minimal happy-path strucpp result. Individual tests override +// fields to exercise the per-result branches. +const okResult: CompileResult = { + success: true, + cppCode: 'int main(){}', + headerCode: '#pragma once', + warnings: [], +} as unknown as CompileResult + +beforeEach(() => { + splitProgramSt.mockReset() + strucppCompile.mockReset() + strucppFormatDiagnostic.mockClear() + strucppBuildSourceMap.mockClear() + // Default: splitter sees nothing it can split. Each test that + // wants the split branch overrides this. + splitProgramSt.mockReturnValue(null) + strucppCompile.mockReturnValue(okResult) +}) + +// --- Tests ---------------------------------------------------------------- + +describe('runProgramBuildPipeline — missing-library gate', () => { + it('refuses to compile when the project enables an uninstalled library', () => { + const result = runProgramBuildPipeline({ ...baseOpts, missingLibraries: ['oscat-basic'] }) + expect(result.success).toBe(false) + expect(result.files).toEqual([]) + expect(result.errors).toHaveLength(1) + expect(result.errors[0].formatted).toContain('oscat-basic') + expect(result.errors[0].formatted).toContain('Library Manager') + expect(strucppCompile).not.toHaveBeenCalled() + }) + + it('still echoes the input md5 on the missing-library refusal', () => { + // The caller stashes `md5Hash` in its build manifest before the + // pipeline runs — keeping it round-tripped here means callers + // don't special-case the refusal path. + const result = runProgramBuildPipeline({ ...baseOpts, missingLibraries: ['x'], md5: 'feedface' }) + expect(result.md5Hash).toBe('feedface') + }) +}) + +describe('runProgramBuildPipeline — monolithic compile (no splitter)', () => { + it('skips the splitter entirely when pous is empty', () => { + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(splitProgramSt).not.toHaveBeenCalled() + expect(result.splitterFallbackMessage).toBeNull() + expect(result.success).toBe(true) + }) + + it('emits a single generated.cpp/.hpp pair from the strucpp result', () => { + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(result.files).toEqual([ + { name: 'generated.cpp', content: 'int main(){}' }, + { name: 'generated.hpp', content: '#pragma once' }, + ]) + }) + + it('echoes the md5 and reports no debug map / no warnings', () => { + const result = runProgramBuildPipeline({ ...baseOpts, pous: [], md5: 'cafef00d' }) + expect(result.md5Hash).toBe('cafef00d') + expect(result.debugMapSummary).toBeNull() + expect(result.warnings).toEqual([]) + }) +}) + +describe('runProgramBuildPipeline — splitter fallback', () => { + it('falls back to monolithic with an info message when the splitter returns null', () => { + splitProgramSt.mockReturnValue(null) + const result = runProgramBuildPipeline(baseOpts) + expect(result.success).toBe(true) + expect(result.splitterFallbackMessage).toContain('falling back to monolithic') + // Compile was still invoked, just with the monolithic source. + expect(strucppCompile).toHaveBeenCalledTimes(1) + const callArgs = strucppCompile.mock.calls[0] + expect(callArgs[0]).toBe(baseOpts.source) + expect(callArgs[1]?.fileName).toBe('program.st') + }) +}) + +describe('runProgramBuildPipeline — successful split compile', () => { + beforeEach(() => { + splitProgramSt.mockReturnValue({ + files: new Map([ + ['Main.st', 'PROGRAM Main … END_PROGRAM'], + ['Helper.st', 'FUNCTION Helper … END_FUNCTION'], + ]), + pouOffsets: new Map([ + ['Main', { kind: 'PROGRAM', startLine: 1, endLine: 5 }], + ['Helper', { kind: 'FUNCTION', startLine: 6, endLine: 10 }], + ]), + }) + }) + + it('emits a program.st.map.json artefact with the per-POU offsets', () => { + const result = runProgramBuildPipeline(baseOpts) + const mapFile = result.files.find((f) => f.name === 'program.st.map.json') + expect(mapFile).toBeDefined() + const parsed = JSON.parse(mapFile!.content) as { + pouOffsets: Record + } + expect(parsed.pouOffsets).toEqual({ + Main: { kind: 'PROGRAM', startLine: 1, endLine: 5 }, + Helper: { kind: 'FUNCTION', startLine: 6, endLine: 10 }, + }) + }) + + it('passes the first split file as the primary source and the rest as additionalSources', () => { + runProgramBuildPipeline(baseOpts) + const [primarySource, options] = strucppCompile.mock.calls[0] + expect(primarySource).toBe('PROGRAM Main … END_PROGRAM') + expect(options?.fileName).toBe('Main.st') + expect(options?.additionalSources).toEqual([ + { fileName: 'Helper.st', source: 'FUNCTION Helper … END_FUNCTION' }, + ]) + }) + + it('does not set splitterFallbackMessage when the split succeeded', () => { + const result = runProgramBuildPipeline(baseOpts) + expect(result.splitterFallbackMessage).toBeNull() + }) +}) + +describe('runProgramBuildPipeline — C-block include plumbing', () => { + it('passes c_blocks.h through pouIncludes when hasCBlocks is true', () => { + runProgramBuildPipeline({ ...baseOpts, hasCBlocks: true, pous: [] }) + const options = strucppCompile.mock.calls[0][1] + expect(options?.pouIncludes).toEqual(['c_blocks.h']) + }) + + it('passes an empty pouIncludes when hasCBlocks is false', () => { + runProgramBuildPipeline({ ...baseOpts, hasCBlocks: false, pous: [] }) + const options = strucppCompile.mock.calls[0][1] + expect(options?.pouIncludes).toEqual([]) + }) +}) + +describe('runProgramBuildPipeline — emitting per-POU cpp files', () => { + it('uses result.cppFiles when strucpp returns the per-TU split', () => { + strucppCompile.mockReturnValue({ + ...okResult, + cppFiles: [ + { name: 'Main.cpp', content: '// Main' }, + { name: 'Helper.cpp', content: '// Helper' }, + ], + } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + const cppNames = result.files.filter((f) => f.name.endsWith('.cpp')).map((f) => f.name) + expect(cppNames).toEqual(['Main.cpp', 'Helper.cpp']) + // generated.cpp should NOT be there — cppFiles supersedes it. + expect(cppNames).not.toContain('generated.cpp') + }) + + it('falls back to a single generated.cpp when cppFiles is empty', () => { + strucppCompile.mockReturnValue({ ...okResult, cppFiles: [] } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + const cppNames = result.files.filter((f) => f.name.endsWith('.cpp')).map((f) => f.name) + expect(cppNames).toEqual(['generated.cpp']) + }) +}) + +describe('runProgramBuildPipeline — debug artefacts', () => { + it('emits generated_debug.cpp when strucpp returns debugTableCpp', () => { + strucppCompile.mockReturnValue({ + ...okResult, + debugTableCpp: '// debug table', + } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(result.files.find((f) => f.name === 'generated_debug.cpp')).toEqual({ + name: 'generated_debug.cpp', + content: '// debug table', + }) + // No debugMap → no summary. + expect(result.debugMapSummary).toBeNull() + }) + + it('emits debug-map.json with a summary when strucpp returns a debugMap', () => { + strucppCompile.mockReturnValue({ + ...okResult, + debugMap: { leaves: [{ a: 1 }, { a: 2 }, { a: 3 }], arrays: [{ b: 1 }] }, + } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(result.files.find((f) => f.name === 'debug-map.json')).toBeDefined() + expect(result.debugMapSummary).toBe('Debug map: 3 leaves in 1 arrays') + }) + + it('omits debug-map.json when strucpp returns no debugMap', () => { + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(result.files.find((f) => f.name === 'debug-map.json')).toBeUndefined() + }) +}) + +describe('runProgramBuildPipeline — compile failure', () => { + it('formats every error and every warning through formatErrorWithPouContext', () => { + strucppCompile.mockReturnValue({ + success: false, + errors: [{ message: 'oops', line: 1, column: 1, severity: 'error', pouName: 'Main', section: 'body', bodyLine: 7 }], + warnings: [{ message: 'careful', line: 2, column: 1, severity: 'warning' }], + } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(result.success).toBe(false) + expect(result.files).toEqual([]) + expect(result.errors).toHaveLength(1) + expect(result.errors[0].formatted).toContain('[Main / body line 7]') + expect(result.errors[0].formatted).toContain('') + expect(result.warnings).toHaveLength(1) + expect(result.warnings[0].formatted).toBe('') + }) + + it('echoes the md5 on the failure path', () => { + strucppCompile.mockReturnValue({ + success: false, + errors: [{ message: 'x', line: 1, column: 1, severity: 'error' }], + warnings: [], + } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [], md5: 'feed' }) + expect(result.md5Hash).toBe('feed') + }) +}) + +describe('runProgramBuildPipeline — warning formatting on success', () => { + it('passes successful-build warnings through the POU-context formatter', () => { + strucppCompile.mockReturnValue({ + ...okResult, + warnings: [{ message: 'unused', line: 4, column: 1, severity: 'warning', pouName: 'Main' }], + } as unknown as CompileResult) + const result = runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(result.success).toBe(true) + expect(result.warnings).toHaveLength(1) + expect(result.warnings[0].formatted).toContain('[Main]') + }) +}) + +describe('runProgramBuildPipeline — sourceMap fed every split file', () => { + it('asks strucpp to build a source map covering every split file', () => { + splitProgramSt.mockReturnValue({ + files: new Map([ + ['Main.st', 'a'], + ['Helper.st', 'b'], + ]), + pouOffsets: new Map(), + }) + runProgramBuildPipeline(baseOpts) + const sourceMapArg = strucppBuildSourceMap.mock.calls[0][0] + expect(sourceMapArg).toEqual([ + { fileName: 'Main.st', source: 'a' }, + { fileName: 'Helper.st', source: 'b' }, + ]) + }) + + it('falls back to a single program.st entry when the splitter is skipped', () => { + runProgramBuildPipeline({ ...baseOpts, pous: [] }) + expect(strucppBuildSourceMap.mock.calls[0][0]).toEqual([{ fileName: 'program.st', source: baseOpts.source }]) + }) +}) diff --git a/src/backend/shared/library/__tests__/strucpp-shims.test.ts b/src/backend/shared/library/__tests__/strucpp-shims.test.ts new file mode 100644 index 000000000..fa3de732f --- /dev/null +++ b/src/backend/shared/library/__tests__/strucpp-shims.test.ts @@ -0,0 +1,92 @@ +/** + * Covers the browser-pure strucpp shims that live in + * `backend/shared/library`. Each shim is a one-line delegation to + * the strucpp runtime, so the tests inject a stub via + * `__setStrucppRuntimeForTests` and assert the call shape. + * `loadStrucpp`'s cache-hit branch is exercised by calling twice + * with the stub set — the second call must not re-load. + */ + +import { importCodesysLibrary } from '../codesys-import' +import { compileStlib } from '../compile-stlib' +import { parseStlibArchive } from '../parse-stlib-archive' +import { __setStrucppRuntimeForTests, loadStrucpp, type StrucppRuntime } from '../strucpp-runtime' + +function makeStub(overrides: Partial = {}): StrucppRuntime { + return { + compile: jest.fn(), + formatDiagnostic: jest.fn(), + buildSourceMap: jest.fn(), + getVersion: jest.fn(), + importCodesysLibraryFromBytes: jest.fn().mockResolvedValue({ success: true, sources: [] }), + loadStlibFromString: jest.fn().mockReturnValue({ manifest: { name: 'IEC' } }), + compileStlib: jest.fn().mockReturnValue({ success: true, archive: {} }), + ...overrides, + } as StrucppRuntime +} + +afterEach(() => { + // Clear the runtime cache between tests so a subsequent test gets + // its own clean stub. + __setStrucppRuntimeForTests(null) +}) + +describe('loadStrucpp', () => { + it('returns the cached instance on subsequent calls', () => { + const stub = makeStub() + __setStrucppRuntimeForTests(stub) + + const first = loadStrucpp() + const second = loadStrucpp() + + expect(first).toBe(stub) + expect(second).toBe(stub) + }) +}) + +describe('compileStlib shim', () => { + it('delegates to strucpp.compileStlib with sources + options', () => { + const stub = makeStub() + __setStrucppRuntimeForTests(stub) + + const sources = [{ fileName: 'f.st', source: 'FUNCTION f : INT ;', category: 'function' }] + const options = { name: 'lib', version: '1.0.0', namespace: 'lib' } + + const res = compileStlib(sources, options) + + expect(stub.compileStlib).toHaveBeenCalledWith(sources, options) + expect(res).toEqual({ success: true, archive: {} }) + }) +}) + +describe('importCodesysLibrary shim', () => { + it('delegates to strucpp.importCodesysLibraryFromBytes with the raw bytes', async () => { + const stub = makeStub({ + importCodesysLibraryFromBytes: jest + .fn() + .mockResolvedValue({ success: true, sources: [{ fileName: 'a.st', source: '' }] }), + }) + __setStrucppRuntimeForTests(stub) + + const bytes = new Uint8Array([0x43, 0x6f, 0x44, 0x65]) + const res = await importCodesysLibrary(bytes) + + expect(stub.importCodesysLibraryFromBytes).toHaveBeenCalledWith(bytes) + expect(res.success).toBe(true) + expect(res.sources).toHaveLength(1) + }) +}) + +describe('parseStlibArchive shim', () => { + it('delegates to strucpp.loadStlibFromString with the archive text', () => { + const archive = { manifest: { name: 'IEC' } } + const stub = makeStub({ loadStlibFromString: jest.fn().mockReturnValue(archive) }) + __setStrucppRuntimeForTests(stub) + + const text = '{"manifest":{"name":"IEC"}}' + const res = parseStlibArchive(text) + + expect(stub.loadStlibFromString).toHaveBeenCalledWith(text) + expect(res).toBe(archive) + }) +}) diff --git a/src/backend/shared/library/build-pipeline.ts b/src/backend/shared/library/build-pipeline.ts new file mode 100644 index 000000000..75fecdae9 --- /dev/null +++ b/src/backend/shared/library/build-pipeline.ts @@ -0,0 +1,589 @@ +/** + * Library Project build pipeline — pure orchestration. + * + * Sequence of transforms the editor backend runs to produce a + * `.stlib` archive from a library project on disk: + * + * 1. `prepareXmlForLibraryBuild(project, manifest)` — synthesizes + * a stub main program / task / instance into a transient + * PLCProject (the on-disk project remains untouched) and runs + * the canonical XmlGenerator on it. xml2st rejects programless + * projects, so the stub is mandatory; the stub's POU body is + * intentionally non-empty (`LocalVar := 3;` against a single + * INT local) because some xml2st codepaths also reject empty + * program bodies. + * + * 2. *(caller runs xml2st on the resulting plc.xml — Electron + * spawns a local binary, web backend posts to its xml2st + * service — produces `program.st`.)* + * + * 3. `libraryBuildFromTranspiledSt(programSt, knownPous, manifest)` + * — splits `program.st` per-POU via the shared splitter, drops + * the synthetic main, runs strucpp's `compileStlib` against + * the remaining sources + the parsed manifest, and returns + * the archive blob + serialized bytes ready for `.stlib` + * write-out. + * + * 4. `composeVerificationProject(project)` — produces the same + * stubbed PLCProject the verification compile path needs + * (Phase 8 — feeds the existing `compileProgram` flow against + * the OpenPLC Simulator target to surface generated-C++ + * compile errors). + * + * Everything here is pure: no fs, no spawn, no electron. The + * Electron compiler module and the web backend service both + * consume this same orchestration. + */ + +import type { PLCProject, PLCProjectData } from '@root/backend/shared/types/PLC/open-plc' +import { checkPathId } from '@root/backend/shared/utils/path-safety' +import { type KnownPou, splitProgramSt } from '@root/backend/shared/utils/PLC/split-program-st' +import { XmlGenerator } from '@root/backend/shared/utils/PLC/xml-generator' + +import { compileStlib, type CompileStlibError, type CompileStlibSource } from './compile-stlib' + +// --------------------------------------------------------------------------- +// Manifest validation +// --------------------------------------------------------------------------- + +/** + * Result of parsing a `library.json` blob. Either a structured + * manifest the build can consume, or a list of validation errors + * suitable for surfacing in the editor console. + */ +export type ManifestParseResult = + | { ok: true; manifest: LibraryBuildManifest } + | { ok: false; errors: string[] } + +/** + * Narrow surface of the strucpp library manifest that the build + * pipeline reads. Mirrors the schema-required fields; optional + * authoring fields (description, displayName, headers, sourceFiles, + * etc.) pass through opaquely in `extra`. + */ +export interface LibraryBuildManifest { + name: string + version: string + namespace: string + /** Whatever else was in the JSON. Forwarded to strucpp's + * compileStlib via the spread in `composeStlibInputs`, so + * upstream additions don't require an editor change. */ + extra: Record +} + +/** + * Parse + validate a `library.json` blob. Returns either the + * structured manifest or a list of human-readable errors the editor + * console can render through the existing diagnostic pipeline. + * + * Strucpp itself validates manifests during compile, but doing it + * here lets the build fail BEFORE running xml2st when the manifest + * is obviously broken — saves a slow xml2st spawn on every + * mis-edited save. + */ +function parseLibraryManifest(json: string): ManifestParseResult { + let raw: unknown + try { + raw = JSON.parse(json) + } catch (err) { + return { ok: false, errors: [`library.json is not valid JSON: ${err instanceof Error ? err.message : String(err)}`] } + } + if (typeof raw !== 'object' || raw === null || Array.isArray(raw)) { + return { ok: false, errors: ['library.json must be a JSON object'] } + } + const obj = raw as Record + const errors: string[] = [] + + // `manifest.name` doubles as the on-disk archive filename and the + // identifier the library manager validates with `validatePathId` + // at install time. Run the SAME check here so an invalid name + // (e.g. one with spaces) fails the build instead of producing a + // `.stlib` that the library manager would later refuse to install. + const nameError = checkPathId(obj.name, 'manifest.name') + if (nameError) { + errors.push(nameError) + } + if (typeof obj.version !== 'string' || obj.version.length === 0) { + errors.push('manifest.version must be a non-empty string') + } + if (typeof obj.namespace !== 'string' || obj.namespace.length === 0) { + errors.push('manifest.namespace must be a non-empty string') + } else if (!/^[A-Za-z_][A-Za-z0-9_]*$/.test(obj.namespace)) { + errors.push( + `manifest.namespace must be a valid C++ identifier (letters, digits, underscore; cannot start with a digit). Got: ${JSON.stringify(obj.namespace)}`, + ) + } + + if (errors.length > 0) return { ok: false, errors } + + return { + ok: true, + manifest: { + name: obj.name as string, + version: obj.version as string, + namespace: obj.namespace as string, + extra: obj, + }, + } +} + +// --------------------------------------------------------------------------- +// Stub program — makes xml2st accept a programless library project +// --------------------------------------------------------------------------- + +/** + * Names of the synthetic program / task / instance the library + * pipeline injects. The program is literally named `main` because + * `XmlGenerator` hard-requires a `type === 'program'` POU named + * `main` and bails otherwise. Library projects forbid the user from + * creating program POUs (see `projectCapabilities.hasPrograms`), so + * the stub can never collide with a real `main` program. Task and + * instance names are unambiguous strings — they never leave memory. + */ +const STUB_PROGRAM_NAME = 'main' +const STUB_TASK_NAME = '__openplc_library_stub_task__' +const STUB_INSTANCE_NAME = '__openplc_library_stub_instance__' + +/** + * Build a transient PLCProject with a stub main program added on + * top of the library's POUs / data types. The stub is what + * satisfies xml2st (and strucpp's main-program assumption later in + * the verification path). Caller drops the stub's per-POU output + * before handing the remaining sources to compileStlib. + * + * The stub's body is non-empty (`LocalVar := 3;`) because xml2st + * has been observed to reject programs with completely empty bodies + * — a single trivial assignment + a single INT local is the smallest + * shape that gets accepted across every xml2st version. + */ +function stubProgramFor(project: PLCProject): PLCProject { + return { + meta: project.meta, + data: { + ...project.data, + pous: [ + ...project.data.pous, + { + type: 'program', + data: { + name: STUB_PROGRAM_NAME, + language: 'st', + variables: [ + { + name: 'LocalVar', + class: 'local', + type: { definition: 'base-type', value: 'INT' }, + location: '', + documentation: '', + debug: false, + }, + ], + documentation: '', + body: { language: 'st', value: 'LocalVar := 3;' }, + }, + }, + ], + configuration: { + resource: { + ...project.data.configuration.resource, + tasks: [ + ...project.data.configuration.resource.tasks, + { name: STUB_TASK_NAME, triggering: 'Cyclic', interval: 'T#100ms', priority: 1 }, + ], + instances: [ + ...project.data.configuration.resource.instances, + { name: STUB_INSTANCE_NAME, program: STUB_PROGRAM_NAME, task: STUB_TASK_NAME }, + ], + }, + }, + } as PLCProjectData, + } +} + +/** + * Synthetic filename the splitter emits for the stub program. The + * splitter writes its file keys using the caller-side POU name + * verbatim (case preserved), so this matches what `splitProgramSt` + * returns regardless of how xml2st upper-cases identifiers in the + * monolithic ST output. Caller drops this entry before feeding the + * rest to compileStlib. + */ +const STUB_SPLIT_FILENAME = `${STUB_PROGRAM_NAME}.st` + +// --------------------------------------------------------------------------- +// Stage 1: pre-xml2st (pure) +// --------------------------------------------------------------------------- + +export interface PrepareXmlResult { + /** Plc.xml content the caller passes to xml2st. */ + xml: string + /** POU list the splitter needs to slice the xml2st output. + * Includes the stub so the splitter recognises and emits a slice + * for it — caller then drops that slice. */ + knownPous: KnownPou[] + /** Manifest the second stage reads, parsed here so a malformed + * manifest bails BEFORE xml2st runs. */ + manifest: LibraryBuildManifest +} + +export type PrepareXmlOutcome = PrepareXmlResult | { error: string } + +/** + * Stage 1. Validates the manifest and produces the XML xml2st + * consumes. Returns `{error}` when the manifest fails validation + * — caller surfaces that as a build error and bails before + * spawning xml2st. + */ +export function prepareXmlForLibraryBuild(project: PLCProject, manifestJson: string): PrepareXmlOutcome { + const parsed = parseLibraryManifest(manifestJson) + if (!parsed.ok) { + return { error: `library.json is invalid:\n${parsed.errors.map((e) => ` • ${e}`).join('\n')}` } + } + + const stubbed = stubProgramFor(project) + // `'old-editor'` keeps the XML shape compatible with the bundled + // xml2st binary (the MatIEC-era flavor), which is the same pipeline + // every other library/program build in this repo speaks to. The + // `'codesys'` flavor exists for export-only paths; using it here + // would leave xml2st unable to find the program block. + const xmlRes = XmlGenerator(stubbed.data, 'old-editor') + if (!xmlRes.ok || !xmlRes.data) { + return { error: `XML generation failed: ${xmlRes.message ?? 'unknown error'}` } + } + + const knownPous: KnownPou[] = stubbed.data.pous.map((p) => ({ + name: p.data.name, + kind: + p.type === 'program' ? 'PROGRAM' : p.type === 'function' ? 'FUNCTION' : 'FUNCTION_BLOCK', + language: p.data.language, + })) + + return { xml: xmlRes.data, knownPous, manifest: parsed.manifest } +} + +// --------------------------------------------------------------------------- +// Stage 2: post-xml2st (pure) +// --------------------------------------------------------------------------- + +export interface LibraryBuildResult { + /** True only when strucpp succeeded. When false `errors` carries + * the diagnostics — same shape strucpp emits, so the editor's + * existing console-rendering pipeline displays them. */ + success: boolean + /** Strucpp archive object. Opaque here; the Electron writer + * (Phase 7) JSON-serialises it to the `.stlib` file. */ + archive?: unknown + /** Compile errors (manifest validation errors are surfaced in + * Stage 1, not here). */ + errors: CompileStlibError[] +} + +/** + * Auxiliary inputs the Electron caller supplies alongside the + * transpiled ST. All optional — the build still produces a valid + * `.stlib` without them, just without the bells: + * + * - `pouDocs` — POU name (case-insensitive) → user-authored + * documentation text. Pulled from each POU's editor + * "Description" field and stamped onto the corresponding + * `manifest.functions[]` / `functionBlocks[]` / `types[]` entry + * so authors don't have to duplicate help text in `library.json`. + * + * - `dependencyArchives` — full strucpp archives of every library + * the project enables, loaded from disk by the Electron bridge. + * Passed to `compileStlib` so cross-library symbol resolution + * works (a library that uses an OSCAT FB needs OSCAT's archive + * visible during compile). Opaque shape — strucpp owns it. + * + * - `dependencyRefs` — `{name, version}` tuples mirroring the + * project's `libraries` field. Written verbatim onto the + * archive's `dependencies` array so consumers can resolve + * transitive deps without re-reading every archive on disk. + */ +/** + * C/C++ function block carried verbatim through the `.stlib`. + * Strucpp's library compiler is ST/IL-only, so the editor pulls + * these out of the strucpp input set and re-attaches them on the + * resulting archive as a separate field. At consume time, the + * editor reads them back, synthesizes user-POU-equivalent entries + * into the consumer project (with a library-name prefix on the + * POU name to avoid collisions), and feeds them through the + * existing user-defined C/C++ block pipeline. Strucpp never sees + * them — same shape user-defined C++ POUs use today. + */ +export interface LibraryCppBlock { + /** FB name as the library author wrote it. The consumer-side + * injection renames this to `__` before + * feeding to `preprocessPous`, so collisions with the + * consumer's own POUs are impossible by construction. */ + name: string + /** Raw user-authored C++ source. Same shape `originalCppPous` + * carries today (the body of `void setup()` / `void loop()` + * plus any helpers). */ + code: string + /** Variable declarations on the FB (inputs / outputs / etc.). + * Same shape `PLCVariable` uses elsewhere; carried opaquely + * here so this module stays free of the variable-schema + * import. */ + variables: unknown[] + /** Optional documentation surfaced in the library tree picker. */ + documentation?: string +} + +export interface LibraryBuildAux { + pouDocs?: Record + dependencyArchives?: unknown[] + dependencyRefs?: Array<{ name: string; version: string }> + /** C/C++ POUs from the library's project. Filtered OUT of + * strucpp's input set and stamped onto the archive's + * `cppBlocks` field after compileStlib returns. See + * `LibraryCppBlock` for the per-entry shape. */ + cppBlocks?: LibraryCppBlock[] +} + +/** + * Stage 2. Given xml2st's monolithic `program.st`, the POU + * inventory from Stage 1, and the parsed manifest: split program.st + * per-POU, drop the stub, hand the remaining sources to strucpp's + * compileStlib. + * + * Failure modes return `{success: false, errors}` rather than + * throwing — same convention compileStlib uses, so editor consumers + * funnel through one diagnostic pipeline. + * + * `aux` carries opt-in metadata the resulting archive's manifest is + * post-processed with — description, displayName, per-POU docs, + * dependency list. Omitted entirely for unit tests that don't care + * about manifest decoration. + */ +export function libraryBuildFromTranspiledSt( + programSt: string, + knownPous: KnownPou[], + manifest: LibraryBuildManifest, + aux?: LibraryBuildAux, +): LibraryBuildResult { + const split = splitProgramSt(programSt, knownPous) + if (!split) { + return { + success: false, + errors: [{ message: 'Could not split program.st into per-POU files (no POUs detected).' }], + } + } + + // Build the strucpp input list. Drops: + // + // - The stub program's `.st` file (the library doesn't ship + // the stub). + // - `_config.st` (xml2st's CONFIGURATION block references the + // stub program, which we've just removed — leaving it in + // causes strucpp to emit "Unknown program type 'MAIN'" + // diagnostics). Libraries don't carry configurations + // anyway — they ship POUs + types for consumer projects to + // instantiate. + // - Every per-POU file whose source POU was originally a + // C/C++ function block. Those POUs' ST bodies are + // `generateCppSTCode`-emitted stubs that reference + // `c_blocks.h` externs strucpp's library compiler can't + // resolve (no `pouIncludes` on `compileStlib`). We + // re-attach the verbatim C++ source on the archive's + // `cppBlocks` field after `compileStlib` returns; the + // consumer's program compile reads it back and routes it + // through the existing user-C++-block path. + // + // Keep `_types.st` and `_globals.st`: they may carry user-defined + // types and library-internal globals the POUs reference. + const cppBlockFilenames = new Set( + (aux?.cppBlocks ?? []).map((b) => `${b.name}.st`), + ) + const sources: CompileStlibSource[] = [] + for (const [fileName, source] of split.files.entries()) { + if (fileName === STUB_SPLIT_FILENAME) continue + if (fileName === '_config.st') continue + if (cppBlockFilenames.has(fileName)) continue + sources.push({ + fileName, + source, + category: inferCategory(fileName), + }) + } + + // No real POU files left? That means the library has no + // functions / function-blocks / types — a degenerate case but a + // valid one (a library project may be opened fresh before the + // user has added any symbols). Refuse with a clear message + // rather than producing an empty .stlib that strucpp would + // accept silently. + // + // C/C++ blocks count as "real content" — a library that ships + // only C/C++ FBs is still useful (no strucpp-compiled chunks, + // just `cppBlocks` riding through the archive for the consumer + // to consume). + const hasRealSources = sources.some((s) => s.fileName !== '_globals.st') + const hasCppBlocks = (aux?.cppBlocks?.length ?? 0) > 0 + if (!hasRealSources && !hasCppBlocks) { + return { + success: false, + errors: [ + { + message: + 'Library has no functions, function blocks, or data types to compile. Add at least one before building.', + }, + ], + } + } + + const compileRes = compileStlib(sources, { + name: manifest.name, + version: manifest.version, + namespace: manifest.namespace, + ...(aux?.dependencyArchives && aux.dependencyArchives.length > 0 + ? { dependencies: aux.dependencyArchives as never } + : {}), + }) + + // Post-process the resulting archive with metadata strucpp's + // `compileStlib` doesn't accept as an option — description, + // displayName, per-POU documentation, and the dependency list. + // The archive is JSON-serialised verbatim to disk, so mutating + // it here is the cleanest place to inject editor-side metadata + // without introducing a second strucpp pass. + if (compileRes.success && compileRes.archive) { + decorateArchive(compileRes.archive, manifest, aux) + } + + return { + success: compileRes.success, + archive: compileRes.archive, + errors: compileRes.errors ?? [], + } +} + +/** + * Stamp editor-side metadata onto a strucpp-produced `.stlib` + * archive in place. Same shape strucpp's archive writer expects, + * just with the optional fields filled in: + * + * - `manifest.description` / `manifest.displayName` from the + * user's `library.json` (`extra`). + * - `manifest.functions[i].documentation` / functionBlocks / + * types from the editor's POU "Description" fields, matched + * case-insensitively by name. + * - `dependencies` from the project's enabled-libraries list. + */ +function decorateArchive(archive: unknown, manifest: LibraryBuildManifest, aux: LibraryBuildAux | undefined): void { + const arch = archive as { + manifest?: { + description?: string + displayName?: string + functions?: Array<{ name: string; documentation?: string }> + functionBlocks?: Array<{ name: string; documentation?: string }> + types?: Array<{ name: string; documentation?: string }> + } + dependencies?: Array<{ name: string; version: string }> + cppBlocks?: LibraryCppBlock[] + } + if (!arch.manifest) return + + const extra = manifest.extra + if (typeof extra.description === 'string' && extra.description.length > 0) { + arch.manifest.description = extra.description + } + if (typeof extra.displayName === 'string' && extra.displayName.length > 0) { + arch.manifest.displayName = extra.displayName + } + + if (aux?.pouDocs) { + // Strucpp upper-cases POU names in the emitted manifest; + // editor-side names preserve the user's casing. Normalise both + // sides to lowercase for the join. + const docsByLower = new Map() + for (const [name, doc] of Object.entries(aux.pouDocs)) { + if (doc && doc.length > 0) docsByLower.set(name.toLowerCase(), doc) + } + const lookup = (name: string): string | undefined => docsByLower.get(name.toLowerCase()) + for (const entry of arch.manifest.functions ?? []) { + const doc = lookup(entry.name) + if (doc) entry.documentation = doc + } + for (const entry of arch.manifest.functionBlocks ?? []) { + const doc = lookup(entry.name) + if (doc) entry.documentation = doc + } + for (const entry of arch.manifest.types ?? []) { + const doc = lookup(entry.name) + if (doc) entry.documentation = doc + } + } + + if (aux?.dependencyRefs && aux.dependencyRefs.length > 0) { + arch.dependencies = aux.dependencyRefs.map((ref) => ({ name: ref.name, version: ref.version })) + } + + // C/C++ blocks ride through the archive verbatim — strucpp has + // no notion of them, the consumer-side editor reads them back + // at program-compile time and grafts them into the project's + // own C++-POU pipeline. JSON.stringify preserves the field, so + // attaching it on the in-memory archive is enough to round-trip + // to disk. + if (aux?.cppBlocks && aux.cppBlocks.length > 0) { + arch.cppBlocks = aux.cppBlocks.map((b) => ({ + name: b.name, + code: b.code, + variables: b.variables, + ...(b.documentation && b.documentation.length > 0 ? { documentation: b.documentation } : {}), + })) + } +} + +/** + * Tag each split filename with the category strucpp uses for + * grouping. Inferred from the splitter's naming convention — see + * `_types.st` / `_globals.st` in `split-program-st.ts`. `_config.st` + * is filtered out upstream (libraries don't carry configurations), + * so it never reaches this helper and intentionally has no case. + */ +function inferCategory(fileName: string): string | undefined { + if (fileName === '_types.st') return 'data-type' + if (fileName === '_globals.st') return 'globals' + // POU files are tagged by their suffix-less name; strucpp uses + // this to group functions vs function-blocks in the manifest, but + // accepts `undefined` and falls back to detecting from the body. + return undefined +} + +// --------------------------------------------------------------------------- +// Stage 4: verification project (Phase 8) +// --------------------------------------------------------------------------- + +/** + * Build a transient PLCProject the verification compile path + * consumes. Same stub-program shape as `stubProgramFor`, but + * tagged `plc-project` so the existing `compileProgram` flow + * (Phase 8) doesn't try to recurse back into the library branch. + * + * Verification runs the resulting project through the standard + * ST→C++→arduino-cli pipeline against the OpenPLC Simulator + * target. Compile failures there are surfaced as warnings — the + * `.stlib` is still produced (the user may legitimately target a + * platform with more memory than the AVR simulator). + */ +export function composeVerificationProject(project: PLCProject): PLCProject { + const stubbed = stubProgramFor(project) + return { + meta: { ...project.meta, type: 'plc-project' }, + data: stubbed.data, + } +} + +// Exposed for test ergonomics only — keeps the stub-name constants +// and pipeline helpers that aren't part of the public API reachable +// from test code without leaking them as importable symbols for +// production callers. +export const __TESTING__ = { + STUB_PROGRAM_NAME, + STUB_TASK_NAME, + STUB_INSTANCE_NAME, + STUB_SPLIT_FILENAME, + parseLibraryManifest, + stubProgramFor, +} diff --git a/src/backend/shared/library/codesys-import.ts b/src/backend/shared/library/codesys-import.ts new file mode 100644 index 000000000..168865bdd --- /dev/null +++ b/src/backend/shared/library/codesys-import.ts @@ -0,0 +1,29 @@ +/** + * Browser-pure wrapper around strucpp's CODESYS V2.3 / V3 importer. + * + * Bytes-in / result-out — no filesystem, no path coupling, so the + * same module compiles for the Electron main process AND for the + * web backend's browser-bundled service. Whichever caller has the + * archive bytes in hand (Electron reads them off disk; web reads + * them off an HTTP upload body) passes them straight through. + */ + +import { loadStrucpp } from './strucpp-runtime' + +export interface CodesysImportSource { + fileName: string + source: string + category?: string +} + +export interface CodesysImportResult { + success: boolean + sources?: CodesysImportSource[] + globalConstants?: Record + errors?: string[] +} + +export async function importCodesysLibrary(bytes: Uint8Array): Promise { + const strucpp = loadStrucpp() + return strucpp.importCodesysLibraryFromBytes(bytes) +} diff --git a/src/backend/shared/library/compile-stlib.ts b/src/backend/shared/library/compile-stlib.ts new file mode 100644 index 000000000..6cfa01830 --- /dev/null +++ b/src/backend/shared/library/compile-stlib.ts @@ -0,0 +1,62 @@ +/** + * Thin platform-agnostic wrapper around strucpp's `compileStlib`. + * + * Pure function call — no fs, no spawn. Lives in `backend/shared` + * so both Electron's compiler module and the web editor's backend + * service can call into it without divergence. Anywhere in the + * editor that needs to produce a `.stlib` archive from ST sources + * goes through this module; the strucpp signature shouldn't leak + * past it. + */ + +import { loadStrucpp } from './strucpp-runtime' + +export interface CompileStlibSource { + fileName: string + source: string + /** Optional category hint strucpp uses to group symbols + * (e.g. `'function'`, `'function-block'`, `'data-type'`). + * Matches the `category` field on the project-file specs the + * editor's save pipeline emits. */ + category?: string +} + +export interface CompileStlibOptions { + name: string + version: string + namespace: string + /** Strip ST source from the archive — closed-source libraries. */ + noSource?: boolean + /** Mark as a built-in runtime library (strucpp's bundled libs). */ + builtin?: boolean + globalConstants?: Record +} + +export interface CompileStlibError { + message: string + line?: number + file?: string +} + +export interface CompileStlibResult { + success: boolean + /** Archive blob — opaque to this layer; the editor backend + * serialises it to the `.stlib` file via strucpp's archive + * writer. Type is `unknown` here so the shared layer doesn't + * bind to strucpp's internal archive shape; the editor's + * serialiser narrows it where it needs to. */ + archive?: unknown + errors?: CompileStlibError[] +} + +/** + * Compile a set of ST sources into a `.stlib` archive blob. Caller + * supplies the manifest options; this module passes them straight to + * strucpp. Returns `{success: false, errors}` on compilation errors + * — no exceptions — so the caller can format diagnostics through the + * editor's existing console pipeline. + */ +export function compileStlib(sources: CompileStlibSource[], options: CompileStlibOptions): CompileStlibResult { + const strucpp = loadStrucpp() + return strucpp.compileStlib(sources, options) as CompileStlibResult +} diff --git a/src/backend/shared/library/parse-stlib-archive.ts b/src/backend/shared/library/parse-stlib-archive.ts new file mode 100644 index 000000000..64673f88b --- /dev/null +++ b/src/backend/shared/library/parse-stlib-archive.ts @@ -0,0 +1,17 @@ +/** + * Browser-pure wrapper around strucpp's `.stlib` archive parser. + * + * Text-in / result-out — `.stlib` archives are UTF-8 JSON, so the + * cross-platform interchange shape is a string the caller has + * already read (off disk in Electron, off an HTTP body in web). + * Strucpp's `loadStlibFromString` validates the archive shape + * beyond what raw `JSON.parse` does; consumers that need the + * stricter check should route through here. + */ + +import { loadStrucpp } from './strucpp-runtime' + +export function parseStlibArchive(text: string): unknown { + const strucpp = loadStrucpp() + return strucpp.loadStlibFromString(text) +} diff --git a/src/backend/shared/library/program-build-helpers.ts b/src/backend/shared/library/program-build-helpers.ts new file mode 100644 index 000000000..e35e4082c --- /dev/null +++ b/src/backend/shared/library/program-build-helpers.ts @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (C) 2026 Autonomy / OpenPLC Project +/** + * Pure helpers shared by every program-build orchestrator. + * + * Three things lived inside `backend/editor/compiler/compiler-module.ts` + * but never touched a Node API. Centralising them here lets the + * upcoming web compile adapter call the same helpers without + * duplicating the implementation across `backend/editor/` and the + * web's eventual analogue. + * + * - `buildKnownPous`: maps the project's `PLCPou[]` to strucpp's + * `KnownPou[]` descriptor used by `splitProgramSt`. Two + * copy-pasted blocks in `compileProgram` / `compileForDebugger` + * collapse into one call. + * + * - `formatErrorWithPouContext`: wraps strucpp's gcc-style + * diagnostic with the POU / section / body-line context the + * editor's click-to-open console relies on. Pure formatter. + */ +import type * as strucpp from 'strucpp' + +import type { PLCPou } from '../types/PLC/open-plc' +import type { KnownPou } from '../utils/PLC/split-program-st' + +type StrucppCompileError = strucpp.CompileError +type StrucppFormatDiagnostic = typeof strucpp.formatDiagnostic +type StrucppSourceMap = ReturnType + +/** + * Map project POUs to the descriptor `splitProgramSt` expects. + * Centralised here because two compiler-module call sites (the + * program build + the debug build) constructed identical inline + * mappings. + */ +export function buildKnownPous(pous: PLCPou[]): KnownPou[] { + return pous.map((p) => ({ + name: p.data.name, + kind: + p.type === 'program' + ? ('PROGRAM' as const) + : p.type === 'function' + ? ('FUNCTION' as const) + : ('FUNCTION_BLOCK' as const), + language: p.data.language as KnownPou['language'], + })) +} + +/** + * Wrap strucpp's plain `(file:line:col)` diagnostic with the POU / + * section context the new `CompileError` fields carry, so the editor's + * console shows something the user can act on: + * + * [Manual_Override / body line 7] Cannot assign WSTRING to BOOL + * + * For var-block errors with a known variable name, surface that + * instead of the raw line number — the variables-table view doesn't + * always show line numbers (table mode), and a name is more + * actionable. Falls back to plain `formatDiagnostic` when none of the + * new fields are populated (e.g. errors in synthetic _types.st / + * _config.st sections, or before the splitter ran). + */ +export function formatErrorWithPouContext( + err: StrucppCompileError, + formatDiagnostic: StrucppFormatDiagnostic, + sourceMap: StrucppSourceMap, +): string { + // `preferBodyLine: true` makes strucpp's gcc-style formatter render + // body errors with the body-relative line in both the header column + // and the snippet gutter, matching the Monaco body view the user + // sees and the bracketed `[POU / body line N]` prefix we render + // alongside. Var-block errors and non-POU errors are unaffected. + // CLI and vscode-extension callers don't pass this flag, so their + // long-standing absolute-file-line output is preserved. + const base = formatDiagnostic(err, sourceMap, { preferBodyLine: true }) + if (!err.pouName) return base + let prefix: string + if (err.section === 'body' && err.bodyLine !== undefined) { + prefix = `[${err.pouName} / body line ${err.bodyLine}]` + } else if (err.section === 'var-block') { + prefix = err.variableName + ? `[${err.pouName} / variable ${err.variableName}]` + : `[${err.pouName} / variables, line ${err.line}]` + } else { + prefix = `[${err.pouName}]` + } + return `${prefix}\n${base}` +} diff --git a/src/backend/shared/library/program-build-pipeline.ts b/src/backend/shared/library/program-build-pipeline.ts new file mode 100644 index 000000000..d0e755c92 --- /dev/null +++ b/src/backend/shared/library/program-build-pipeline.ts @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +// Copyright (C) 2026 Autonomy / OpenPLC Project +/** + * Shared program-build pipeline. + * + * Mirrors `build-pipeline.ts` (library projects) for the program + * case: takes already-loaded ST source + options, invokes + * `strucpp.compile`, and returns the artefacts as in-memory + * `{ name, content }[]` files plus structured error / warning lists. + * + * Why a separate shared module: the same logic is needed by the + * Electron editor (which writes the result to disk and feeds the + * cpp files into arduino-cli) and the web editor (which packs the + * same cpp files into the upload zip). Keeping it in + * `backend/editor/compiler/compiler-module.ts` would force a + * copy-paste when web ports rc1. + * + * Constraints that keep this pure: + * + * - No disk I/O — caller does `readFile(program.st)` first and + * `writeFile(...)` on each returned entry. The Electron wrapper + * writes them under `build//src/`; the web wrapper + * packs them into a JSZip. + * + * - No MD5 hashing inside — Node has `crypto.createHash('md5')` + * and the web has its own hashing (WebCrypto doesn't expose + * MD5; web side uses a tiny portable implementation). Caller + * pre-computes the hash and passes it in; strucpp embeds it + * into the debug map for stale-layout detection. + * + * - No external-process orchestration — `xml2st` (XML→ST) and + * `arduino-cli` (firmware compile) stay in the platform-specific + * orchestrator that wraps this pipeline. This module is purely + * about the strucpp invocation slice. + */ +import type * as strucpp from 'strucpp' + +import type { KnownPou } from '../utils/PLC/split-program-st' +import { splitProgramSt } from '../utils/PLC/split-program-st' +import { formatErrorWithPouContext } from './program-build-helpers' +import { loadStrucpp } from './strucpp-runtime' + +type StrucppCompileError = strucpp.CompileError +type StrucppLibraries = NonNullable[1]>['libraries'] + +export interface ProgramBuildPipelineOptions { + /** Full program.st text (or the merged ST source the caller produced). */ + source: string + /** MD5 hex digest of `source`. Strucpp embeds it into the debug map + * so the editor can detect stale layouts without re-reading the file. */ + md5: string + /** Project POUs in the order they appear in `source`, used by the + * splitter to emit per-POU error file names. */ + pous: KnownPou[] + /** Pre-loaded `.stlib` archives — bundled + the project-enabled + * subset — passed through to strucpp's `libraries:` option. */ + libraries: unknown[] + /** Names of libraries the project enables but the system pool + * doesn't currently have on disk. Surfaced as a pre-compile + * error so the user gets a clear "open the Library Manager" + * message instead of strucpp's per-symbol cascade. */ + missingLibraries: string[] + /** True when the project carries any C/C++ POUs. Causes every + * generated TU to `#include "c_blocks.h"`. */ + hasCBlocks: boolean +} + +/** A single artefact the editor should persist (Electron) or pack + * into the upload zip (web). `name` is a relative file name; the + * caller prefixes the destination directory. */ +export interface ProgramBuildArtefact { + name: string + content: string +} + +/** One error / warning produced during the pipeline run, paired with + * the raw strucpp `CompileError` so the editor's console can drive + * click-to-open from the structured fields. */ +export interface ProgramBuildDiagnostic { + formatted: string + raw: StrucppCompileError +} + +export interface ProgramBuildPipelineResult { + success: boolean + /** Files to write under the destination build dir. Includes the + * generated.cpp / generated.hpp (or per-POU .cpp files), the + * per-POU offset map (`program.st.map.json`), generated_debug.cpp, + * and debug-map.json — whatever strucpp produced for this run. + * Always empty on failure. */ + files: ProgramBuildArtefact[] + errors: ProgramBuildDiagnostic[] + warnings: ProgramBuildDiagnostic[] + /** Echo of the input MD5 — convenient for the caller that needs + * it later (build pipeline manifests, debugger cache keys). */ + md5Hash: string + /** Info-level log produced when the per-POU splitter falls back to + * monolithic compilation (no error, but worth telling the user + * because error line numbers won't match Monaco's body view). */ + splitterFallbackMessage: string | null + /** Info-level "Debug map: N leaves in M arrays" summary when + * strucpp emitted a debug map. `null` otherwise. */ + debugMapSummary: string | null +} + +/** + * Run the strucpp compile pipeline against an already-loaded ST + * source. Pure: no disk I/O, no `child_process.spawn`. + */ +export function runProgramBuildPipeline(opts: ProgramBuildPipelineOptions): ProgramBuildPipelineResult { + const { source, md5, pous, libraries, missingLibraries, hasCBlocks } = opts + + // Pre-compile gate: every library the project enables must be + // resolvable before strucpp runs. Without this, the user gets a + // confusing "function 'X' not found" cascade instead of a clear + // "library 'Y' is enabled but not installed" message. + if (missingLibraries.length > 0) { + const list = missingLibraries.join(', ') + return { + success: false, + files: [], + errors: [ + { + formatted: + `Cannot compile: project enables libraries that are not installed (${list}). ` + + 'Open the Library Manager to install or remove them.', + raw: { + message: `Libraries not installed: ${list}`, + line: 0, + column: 0, + severity: 'error', + }, + }, + ], + warnings: [], + md5Hash: md5, + splitterFallbackMessage: null, + debugMapSummary: null, + } + } + + const { + compile: strucppCompile, + formatDiagnostic: strucppFormatDiagnostic, + buildSourceMap: strucppBuildSourceMap, + } = loadStrucpp() + + // Try to split program.st into per-POU files so strucpp errors come + // back with `error.file === '.st'` and the new pouName / + // section / bodyLine fields populated. Failure is non-fatal: we + // fall back to monolithic compilation, exactly today's behaviour. + const split = pous.length > 0 ? splitProgramSt(source, pous) : null + const splitterFallbackMessage = + pous.length > 0 && !split + ? 'ST splitter could not segment program.st; falling back to monolithic compilation. ' + + 'Error line numbers may not match the editor view.' + : null + + const stFileName = 'program.st' + // When the project has C/C++ POUs, every per-POU TU may reference the + // user-defined `_VARS` struct and `_setup` / `_loop` + // extern declarations. They live in c_blocks.h (generated immediately + // after this step), so plumb the include through. + const pouIncludes = hasCBlocks ? ['c_blocks.h'] : [] + + let primaryFileName = stFileName + let primarySource = source + let additionalSources: { fileName: string; source: string }[] | undefined + if (split) { + const entries = [...split.files.entries()] + // Take the first as primary; rest go through additionalSources. + // Order doesn't affect compilation correctness — strucpp merges + // every parsed unit before semantic analysis. + const [firstName, firstSource] = entries[0] + primaryFileName = firstName + primarySource = firstSource + additionalSources = entries.slice(1).map(([fileName, src]) => ({ fileName, source: src })) + } + + const result = strucppCompile(primarySource, { + headerFileName: 'generated.hpp', + fileName: primaryFileName, + debug: true, + lineMapping: true, + libraries: libraries as StrucppLibraries, + md5, + pouIncludes, + ...(additionalSources ? { additionalSources } : {}), + }) + + // Source map covers every file we fed strucpp, so formatDiagnostic + // can pull the offending source line whichever per-POU file the + // error came from. + const diagFiles = split + ? [...split.files.entries()].map(([fileName, src]) => ({ fileName, source: src })) + : [{ fileName: stFileName, source }] + const diagSourceMap = strucppBuildSourceMap(diagFiles) + + if (!result.success) { + return { + success: false, + files: [], + errors: result.errors.map((err) => ({ + formatted: formatErrorWithPouContext(err, strucppFormatDiagnostic, diagSourceMap), + raw: err, + })), + warnings: result.warnings.map((warn) => ({ + formatted: formatErrorWithPouContext(warn, strucppFormatDiagnostic, diagSourceMap), + raw: warn, + })), + md5Hash: md5, + splitterFallbackMessage, + debugMapSummary: null, + } + } + + // Build the artefact list. Order doesn't matter — the caller + // writes each entry independently. + const files: ProgramBuildArtefact[] = [] + + // Per-POU split offsets (handy for future iec2c-error remapping on + // Runtime v3, no current consumer but trivial to produce). + if (split) { + const offsets: Record = {} + for (const [name, off] of split.pouOffsets) offsets[name] = off + files.push({ + name: 'program.st.map.json', + content: JSON.stringify({ pouOffsets: offsets }, null, 2), + }) + } + + // STruC++ splits the implementation across one TU per POU plus a + // shared `configuration.cpp`. The runtime's Makefile picks up + // every `*.cpp` under core/generated/ via wildcard, so emitting + // more files just gives `make -j$(nproc)` more parallel work and + // lets ccache reuse .o files for POUs whose source didn't change. + // Falling back to `result.cppCode` keeps older strucpp builds (no + // cppFiles) working — the runtime build sees a single generated.cpp + // and compiles it serially, exactly as before. + if (result.cppFiles && result.cppFiles.length > 0) { + for (const f of result.cppFiles) files.push({ name: f.name, content: f.content }) + } else { + files.push({ name: 'generated.cpp', content: result.cppCode }) + } + files.push({ name: 'generated.hpp', content: result.headerCode }) + + // Phase 4 debugger artifacts (present starting with strucpp v0.3.0). + // debugTableCpp is the per-project pointer table for generated_debug.cpp. + // debugMap is the editor-consumed manifest (path -> (arrayIdx, elemIdx)). + if (result.debugTableCpp !== undefined) { + files.push({ name: 'generated_debug.cpp', content: result.debugTableCpp }) + } + let debugMapSummary: string | null = null + if (result.debugMap !== undefined) { + files.push({ + name: 'debug-map.json', + content: JSON.stringify(result.debugMap, null, 2), + }) + debugMapSummary = `Debug map: ${result.debugMap.leaves.length} leaves in ${result.debugMap.arrays.length} arrays` + } + + return { + success: true, + files, + errors: [], + warnings: result.warnings.map((warn) => ({ + formatted: formatErrorWithPouContext(warn, strucppFormatDiagnostic, diagSourceMap), + raw: warn, + })), + md5Hash: md5, + splitterFallbackMessage, + debugMapSummary, + } +} diff --git a/src/backend/shared/library/strucpp-runtime.ts b/src/backend/shared/library/strucpp-runtime.ts new file mode 100644 index 000000000..ff1cfb729 --- /dev/null +++ b/src/backend/shared/library/strucpp-runtime.ts @@ -0,0 +1,72 @@ +/** + * Strucpp runtime loader — single source of truth for the typed + * surface of the strucpp package as the editor consumes it. + * + * This module lives in `backend/shared/` and therefore must be + * byte-identical between openplc-editor and openplc-web. It only + * imports the pure (`strucpp`) entry — never `strucpp/node` — so + * the same code compiles for the Electron main process AND for + * the web backend's browser-bundled service. Anything that needs + * filesystem paths is Node-only and lives in `backend/editor/`, + * where the caller reads bytes/text from disk and hands them in. + * + * Why the lazy `require` rather than a top-level `import`: + * + * Strucpp uses ESM features (`import.meta`, top-level await in + * some helpers) that don't survive Jest's CJS transform. Eager + * imports here would break every test suite that transitively + * touches this module, regardless of whether the test actually + * exercises strucpp. Deferring with `require` keeps the module + * load tree clean for tests; the real consumer paths pay the + * require cost once on first call. Webpack handles the same + * `require('strucpp')` as a static dependency at bundle time. + */ + +/** + * Typed surface of strucpp's pure entry as the editor consumes it. + * + * - `compile` / `formatDiagnostic` / `buildSourceMap` / + * `getVersion` — the compiler pipeline. + * - `compileStlib` — the library build pipeline. + * - `importCodesysLibraryFromBytes` — CODESYS V2.3 / V3 import + * (bytes-in; the caller reads the file or upload). + * - `loadStlibFromString` — `.stlib` archive parser (text-in; + * the caller reads the file or fetches the URL). + * + * Every entry pulls its signature through `typeof import('strucpp')[k]` + * so adding a parameter on the strucpp side surfaces as a compile + * error here, not as a silent runtime drift. + */ +export interface StrucppRuntime { + compile: typeof import('strucpp')['compile'] + formatDiagnostic: typeof import('strucpp')['formatDiagnostic'] + buildSourceMap: typeof import('strucpp')['buildSourceMap'] + getVersion: typeof import('strucpp')['getVersion'] + compileStlib: typeof import('strucpp')['compileStlib'] + importCodesysLibraryFromBytes: typeof import('strucpp')['importCodesysLibraryFromBytes'] + loadStlibFromString: typeof import('strucpp')['loadStlibFromString'] +} + +let cached: StrucppRuntime | null = null + +/** + * Load (or return cached) strucpp runtime. Use this in any place + * that needs strucpp — instead of `require('strucpp')` directly — + * so the lazy-require pattern, the cache, and the typed surface + * stay in one place. + */ +export function loadStrucpp(): StrucppRuntime { + if (cached) return cached + // eslint-disable-next-line @typescript-eslint/no-require-imports + cached = require('strucpp') as StrucppRuntime + return cached +} + +/** + * Test-only escape hatch. Lets a Jest test inject a fake strucpp + * runtime without monkey-patching `require`. Production code never + * calls this. + */ +export function __setStrucppRuntimeForTests(stub: StrucppRuntime | null): void { + cached = stub +} diff --git a/src/backend/shared/project/__tests__/create-project-files.test.ts b/src/backend/shared/project/__tests__/create-project-files.test.ts new file mode 100644 index 000000000..3ce602ab8 --- /dev/null +++ b/src/backend/shared/project/__tests__/create-project-files.test.ts @@ -0,0 +1,173 @@ +/** + * Tests for the pure file-content authoring used by both the + * Electron and (future) web editor backends when a new project or + * library is created. + * + * Library coverage matters here because no UI test exercises the + * library branch end-to-end yet (the New Project Library button + * doesn't fully wire to the backend until Phase 2 lands the IPC + * plumbing). Pinning the shape now prevents regressions across + * the remaining phases. + */ + +import { + buildLibraryManifestTemplate, + buildProjectFileContent, + toSnakeCaseNamespace, +} from '../create-project-files' + +describe('toSnakeCaseNamespace', () => { + it('normalises spaces to underscores', () => { + expect(toSnakeCaseNamespace('My Cool Lib')).toBe('my_cool_lib') + }) + + it('collapses runs of non-alphanumerics into single underscores', () => { + expect(toSnakeCaseNamespace('My Cool---Lib')).toBe('my_cool_lib') + }) + + it('lowercases', () => { + expect(toSnakeCaseNamespace('Sensor-Tools')).toBe('sensor_tools') + }) + + it('strips leading and trailing underscores', () => { + expect(toSnakeCaseNamespace(' -- _ foo _ -- ')).toBe('foo') + }) + + it('prefixes a leading digit with an underscore (C++ identifier rule)', () => { + expect(toSnakeCaseNamespace('123foo')).toBe('_123foo') + }) + + it('returns a safe fallback for empty / unrecognisable input', () => { + expect(toSnakeCaseNamespace('')).toBe('lib') + expect(toSnakeCaseNamespace('---')).toBe('lib') + }) +}) + +describe('buildLibraryManifestTemplate', () => { + it('emits a strucpp-compatible metadata-only manifest skeleton', () => { + const raw = buildLibraryManifestTemplate('My Sensor Lib') + const parsed = JSON.parse(raw) + expect(parsed).toEqual({ + name: 'My Sensor Lib', + displayName: 'My Sensor Lib', + version: '0.1.0', + namespace: 'my_sensor_lib', + description: '', + }) + }) + + it('omits the auto-computed symbol arrays', () => { + // functions / functionBlocks / types / headers are produced by + // strucpp at build time — surfacing them as empty arrays in the + // template would invite drift between the editor view and the + // user-edited manifest. + const raw = buildLibraryManifestTemplate('My Sensor Lib') + const parsed = JSON.parse(raw) as Record + expect(parsed).not.toHaveProperty('functions') + expect(parsed).not.toHaveProperty('functionBlocks') + expect(parsed).not.toHaveProperty('types') + expect(parsed).not.toHaveProperty('headers') + }) + + it('is JSON-formatted with a trailing newline', () => { + const raw = buildLibraryManifestTemplate('lib') + expect(raw.endsWith('\n')).toBe(true) + expect(() => JSON.parse(raw)).not.toThrow() + }) +}) + +describe('buildProjectFileContent', () => { + describe('for plc-project', () => { + const built = buildProjectFileContent({ + name: 'MyProject', + type: 'plc-project', + language: 'st', + time: 'T#50ms', + }) + + it('seeds one cyclic task and one program instance', () => { + const resource = built.project.data.configuration.resource + expect(resource.tasks).toHaveLength(1) + expect(resource.tasks[0]).toMatchObject({ name: 'task0', triggering: 'Cyclic', interval: 'T#50ms' }) + expect(resource.instances).toHaveLength(1) + expect(resource.instances[0]).toMatchObject({ name: 'instance0', program: 'main', task: 'task0' }) + }) + + it('seeds a default main program POU', () => { + expect(built.pous).toHaveLength(1) + expect(built.pous[0].data.name).toBe('main') + expect(built.pous[0].type).toBe('program') + }) + + it('does not emit a library manifest', () => { + expect(built.libraryManifest).toBeUndefined() + }) + + describe('default POU body per language', () => { + it('seeds a ladder rung container for LD projects', () => { + const ld = buildProjectFileContent({ name: 'P', type: 'plc-project', language: 'ld', time: 'T#20ms' }) + expect(ld.pous[0].data.body).toEqual({ language: 'ld', value: { name: 'main', rungs: [] } }) + }) + + it('seeds an empty flow graph for FBD projects', () => { + const fbd = buildProjectFileContent({ name: 'P', type: 'plc-project', language: 'fbd', time: 'T#20ms' }) + expect(fbd.pous[0].data.body).toEqual({ + language: 'fbd', + value: { name: 'main', rung: { comment: '', edges: [], nodes: [] } }, + }) + }) + + it('seeds an empty textual body for ST/IL/SFC projects', () => { + const il = buildProjectFileContent({ name: 'P', type: 'plc-project', language: 'il', time: 'T#20ms' }) + expect(il.pous[0].data.body).toEqual({ language: 'il', value: '' }) + }) + }) + }) + + describe('for plc-library', () => { + const built = buildProjectFileContent({ + name: 'Sensor Tools', + type: 'plc-library', + language: 'st', + time: 'T#20ms', + }) + + it('emits a degenerate configuration (no tasks, no instances)', () => { + const resource = built.project.data.configuration.resource + expect(resource.tasks).toEqual([]) + expect(resource.instances).toEqual([]) + expect(resource.globalVariables).toEqual([]) + }) + + it('does not seed a default POU', () => { + expect(built.pous).toEqual([]) + }) + + it('tags the project meta as plc-library', () => { + expect(built.project.meta.type).toBe('plc-library') + }) + + it('emits a library manifest with snake_case namespace auto-fill', () => { + expect(built.libraryManifest).toBeDefined() + const manifest = JSON.parse(built.libraryManifest as string) as Record + expect(manifest.name).toBe('Sensor Tools') + expect(manifest.displayName).toBe('Sensor Tools') + expect(manifest.namespace).toBe('sensor_tools') + expect(manifest.version).toBe('0.1.0') + expect(manifest.description).toBe('') + }) + + it('does not seed the auto-computed symbol arrays in the template', () => { + // `functions`, `functionBlocks`, `types`, `headers` are + // populated by strucpp at build time from the project's + // POUs / data types — surfacing them as empty arrays in the + // user-editable manifest would invite manual maintenance of + // a list the editor already owns. + const manifest = JSON.parse(built.libraryManifest as string) as Record + expect(manifest).not.toHaveProperty('functions') + expect(manifest).not.toHaveProperty('functionBlocks') + expect(manifest).not.toHaveProperty('types') + expect(manifest).not.toHaveProperty('headers') + }) + }) +}) diff --git a/src/backend/shared/project/create-project-files.ts b/src/backend/shared/project/create-project-files.ts new file mode 100644 index 000000000..d84155ecc --- /dev/null +++ b/src/backend/shared/project/create-project-files.ts @@ -0,0 +1,215 @@ +/** + * Pure file-content authoring for project creation. + * + * Returns the in-memory shape of every file the editor wants to + * persist when a new project (or library) is created. No fs writes, + * no platform coupling — the Electron `create-project` service does + * the actual `mkdir` / `writeFile` calls around this; the web + * editor's backend service will do the same with its storage layer. + * + * Splitting this out makes the rule explicit: this module owns + * "what should the on-disk shape of a fresh project / library + * look like?", and nothing else. Anywhere that produces new + * project content (initial creation, future "duplicate", future + * template-from-existing) should funnel through here. + * + * Convention: matches `backend/shared/utils/parse-project-files.ts` + * — shared returns content strings, editor reads/writes around it. + */ + +import type { DeviceConfiguration, DevicePin } from '../types/PLC/devices' +import type { PLCPou, PLCProject } from '../types/PLC/open-plc' +import { getDefaultSchemaValues } from '../utils/default-zod-schema-values' +import { projectDefaultFilesMapSchema } from './project-files-schema' + +/** Input shape — same as the IPC contract carries today. */ +export interface CreateProjectFileInput { + language: 'il' | 'st' | 'ld' | 'sfc' | 'fbd' + time: string + type: 'plc-project' | 'plc-library' + name: string +} + +/** + * The in-memory PLCProject + accompanying content the editor wants + * to persist. `pous` carries the editor-flat shape (one PLCPou per + * file) so callers don't re-derive it. + */ +export interface CreateProjectFileContent { + project: PLCProject + pous: PLCPou[] + deviceConfiguration: DeviceConfiguration + devicePinMapping: DevicePin[] + /** Library-projects-only: the strucpp manifest template (`library.json`) + * that the editor writes alongside `project.json`. Pre-filled with + * snake_case namespace, version `0.1.0`, empty symbol arrays. */ + libraryManifest?: string +} + +/** + * Convert an arbitrary user-supplied project name to a strucpp-safe + * snake_case namespace. Used to auto-fill `library.json`'s + * `namespace` field when a library project is created. + * + * "My Cool Lib" → "my_cool_lib" + * "Sensor-Tools" → "sensor_tools" + * "123foo" → "_123foo" (strucpp namespace must start + * with a non-digit) + * "" → "lib" (defensive) + */ +export function toSnakeCaseNamespace(name: string): string { + const cleaned = name + .trim() + .toLowerCase() + .replace(/[^a-z0-9]+/g, '_') + .replace(/^_+|_+$/g, '') + if (cleaned.length === 0) return 'lib' + if (/^[0-9]/.test(cleaned)) return `_${cleaned}` + return cleaned +} + +/** + * Build the manifest template a freshly-created library project + * ships with. Auto-fills the namespace from the project name and + * leaves the description blank for the user to fill in. + * + * Intentionally NOT in the template: `functions`, `functionBlocks`, + * `types`, `headers`. Those fields are populated by strucpp at + * build time by walking the project's POUs / data types; surfacing + * them in the user-editable manifest invites manual maintenance of + * a list that's authoritatively derived from the editor view. Per- + * POU help text comes from each POU's `documentation` field on the + * editor side — the build pipeline copies it onto the manifest + * entries strucpp emits, so the manifest's symbol arrays stay + * out-of-band. + */ +export function buildLibraryManifestTemplate(name: string): string { + return ( + JSON.stringify( + { + name, + displayName: name, + version: '0.1.0', + namespace: toSnakeCaseNamespace(name), + description: '', + }, + null, + 2, + ) + '\n' + ) +} + +/** PLCPou factory for the default "main" program a PLC project ships + * with — empty body for textual languages, empty flow for graphical + * ones. Libraries don't get a default POU. */ +function definePou(language: CreateProjectFileInput['language']): PLCPou { + return { + type: 'program', + data: { + name: 'main', + language, + variables: [], + documentation: '', + body: (() => { + switch (language) { + case 'ld': + return { language, value: { name: 'main', rungs: [] } } + case 'fbd': + return { + language, + value: { + name: 'main', + rung: { comment: '', edges: [], nodes: [] }, + }, + } + default: + return { language, value: '' } + } + })(), + }, + } +} + +/** + * Build the `PLCProject` object that goes into `project.json`. + * + * - PLC project: full configuration with one cyclic task ('task0'), + * one instance pointing at the 'main' program, no global vars. + * - Library project: degenerate configuration (empty tasks, + * instances, globalVariables). Schema-valid but inert. The + * library doesn't run anything; the configuration block exists + * only because the PLCProjectDataSchema still requires it. + */ +function buildProjectObject(input: CreateProjectFileInput): PLCProject { + const isLibrary = input.type === 'plc-library' + return { + meta: { + name: input.name, + type: input.type, + }, + data: { + pous: [], + dataTypes: [], + libraries: [], + // `libraryManifest` is NOT embedded in `project.json` — it + // rides on `CreateProjectFileContent` at the top level + // (see `buildProjectFileContent` below), gets written to + // `library.json` at the project root by the create + // orchestrator, and is threaded back to the renderer + // through the IPC create-response so the manifest tab + // sees the initial content without a follow-up disk read. + configuration: { + resource: { + tasks: isLibrary + ? [] + : [ + { + name: 'task0', + triggering: 'Cyclic', + interval: input.time, + priority: 1, + }, + ], + instances: isLibrary + ? [] + : [ + { + name: 'instance0', + program: 'main', + task: 'task0', + }, + ], + globalVariables: [], + }, + }, + }, + } +} + +/** + * Build every piece of content a freshly-created project ships with. + * Caller (`backend/editor/services/project-service/utils/create-project`) + * writes the result to disk; the web editor's equivalent backend + * service will write to its own storage. + */ +export function buildProjectFileContent(input: CreateProjectFileInput): CreateProjectFileContent { + const isLibrary = input.type === 'plc-library' + + const project = buildProjectObject(input) + const pous: PLCPou[] = isLibrary ? [] : [definePou(input.language)] + + const deviceConfiguration = getDefaultSchemaValues( + projectDefaultFilesMapSchema['devices/configuration.json'], + ) as DeviceConfiguration + const devicePinMapping = getDefaultSchemaValues( + projectDefaultFilesMapSchema['devices/pin-mapping.json'], + ) as DevicePin[] + + return { + project, + pous, + deviceConfiguration, + devicePinMapping, + ...(isLibrary ? { libraryManifest: buildLibraryManifestTemplate(input.name) } : {}), + } +} diff --git a/src/types/IPC/project-service/project-files-schema.ts b/src/backend/shared/project/project-files-schema.ts similarity index 100% rename from src/types/IPC/project-service/project-files-schema.ts rename to src/backend/shared/project/project-files-schema.ts diff --git a/src/backend/shared/simulator/__tests__/debug-e2e.test.ts b/src/backend/shared/simulator/__tests__/debug-e2e.test.ts new file mode 100644 index 000000000..5bb6cfb29 --- /dev/null +++ b/src/backend/shared/simulator/__tests__/debug-e2e.test.ts @@ -0,0 +1,88 @@ +/** + * End-to-end debugger validation over avr8js. + * + * Boots the Chris Demo firmware in the simulator, drives it through the + * real ModbusRtuClient + VirtualSerialPort + SimulatorModule stack, and + * verifies the Phase 4 wire protocol round-trips correctly. + * + * Runs only when CHRIS_DEMO_HEX env var points at a compiled .hex file. + * CI skips it by default because it depends on an AVR toolchain + built + * firmware. Local reproduction: + * + * 1. Build the Chris Demo project via the editor (or manually invoke + * strucpp + arduino-cli on a project with a located BOOL variable) + * targeting arduino:avr:mega with MODBUS_ENABLED + MBSERIAL defined. + * 2. export CHRIS_DEMO_HEX=/path/to/Baremetal.ino.hex + * 3. npx jest src/backend/shared/simulator/__tests__/debug-e2e.test.ts + */ + +import fs from 'node:fs' +import path from 'node:path' + +import { ModbusRtuClient } from '../modbus-rtu-client' +import { SimulatorModule } from '../simulator-module' +import { VirtualSerialPort } from '../virtual-serial-port' + +// jsdom polyfill — matches modbus-rtu-client.test.ts. +if (typeof globalThis.TextDecoder === 'undefined') { + // eslint-disable-next-line @typescript-eslint/no-var-requires + const { TextEncoder, TextDecoder } = require('util') + globalThis.TextEncoder = TextEncoder + globalThis.TextDecoder = TextDecoder as typeof globalThis.TextDecoder +} + +const HEX_PATH = process.env.CHRIS_DEMO_HEX ?? '' +const HEX_EXISTS = HEX_PATH !== '' && fs.existsSync(HEX_PATH) +const describeIfHex: typeof describe = HEX_EXISTS ? describe : describe.skip + +describeIfHex('Phase 4 debugger end-to-end (avr8js + ModbusRtuClient)', () => { + let sim: SimulatorModule + let vsp: VirtualSerialPort + let client: ModbusRtuClient + + beforeAll(async () => { + const hexContent = fs.readFileSync(path.resolve(HEX_PATH), 'utf-8') + sim = new SimulatorModule() + sim.loadAndRun(hexContent) + vsp = new VirtualSerialPort(sim) + client = new ModbusRtuClient({ slaveId: 1, timeout: 5000, serialPort: vsp }) + await client.connect() + }, 30000) + + afterAll(() => { + client?.disconnect() + sim?.stop() + }) + + it('FC 0x45 DEBUG_GET_MD5 returns a 32-char MD5', async () => { + const md5 = await client.getMd5Hash() + expect(md5).toMatch(/^[0-9a-f]{32}$/) + }, 30000) + + it('FC 0x42 DEBUG_SET force blink=TRUE → FC 0x44 read returns 1', async () => { + const addr = 0 // packed (arr=0, elem=0) + + const setResult = await client.setVariable(addr, true, new Uint8Array([1])) + expect(setResult.success).toBe(true) + + // Let a few scan cycles run so we exercise the "forced value survives + // across PLC writes" path (generated code does `BLINK := TOF0.Q` every + // cycle, which must not overwrite the forced state). + await new Promise((r) => setTimeout(r, 200)) + + const read = await client.getVariablesList([addr]) + expect(read.success).toBe(true) + expect(read.data).toBeDefined() + expect(read.data!.length).toBe(1) + expect(read.data![0]).toBe(1) + }, 30000) + + it('FC 0x42 DEBUG_SET unforce → blink resumes PLC control', async () => { + const addr = 0 + const unforce = await client.setVariable(addr, false) + expect(unforce.success).toBe(true) + // We don't assert on a subsequent read — racing the scan cycle is + // non-deterministic and this test already validated at the SET layer + // that the protocol accepts the unforce request. + }, 30000) +}) diff --git a/src/backend/shared/simulator/__tests__/extended-sram.test.ts b/src/backend/shared/simulator/__tests__/extended-sram.test.ts new file mode 100644 index 000000000..ac3e97dce --- /dev/null +++ b/src/backend/shared/simulator/__tests__/extended-sram.test.ts @@ -0,0 +1,157 @@ +/** + * Regression tests for the extended-SRAM hack. + * + * Background: the OpenPLC simulator target compiles user code against + * the ATmega2560 platform (256 KB flash, 8 KB SRAM on real hardware) + * but emulates it under AVR8JS with the SRAM expanded to ~63.5 KB so + * larger PLC programs can run. Two moving parts have to stay in sync + * or programs silently corrupt memory: + * + * 1. `simulator-module.ts` passes `SRAM_BYTES = 0xff00` to AVR8JS's + * `CPU` constructor. If this gets reverted (or AVR8JS changes + * the default), the data array shrinks back to 8 KB and stores + * to addresses > 0x21FF silently land out of bounds (Uint8Array + * writes outside its length are no-ops in JS, not crashes). + * + * 2. The compiler's `hals.json` ld_flags + * (`__DATA_REGION_LENGTH__=0xFE00`, `__stack=0x80FFFF`) tell + * avr-gcc to lay symbols out into the extended region, and the + * compiler module passes `--build-property + * upload.maximum_data_size=65024` so arduino-cli's post-link + * size check doesn't reject the binary. + * + * These tests exercise AVR8JS directly (no mock) and pin the + * data-memory contract that both sides depend on: + * - `readData`/`writeData` round-trip every byte in [0x200, 0xFFFF]. + * - Auto-incrementing stores via `ST X+` reach addresses across the + * canonical 8 KB ceiling without masking — the exact pattern + * avr-gcc's `.do_clear_bss` emits to zero a 15+ KB BSS region. + * - `PUSH` from an SP near `0xFFFF` lands in the expected slot. + * + * Failures here mean firmware boot will silently corrupt the upper + * BSS region, leaving large globals filled with garbage on the + * simulator while the same binary works fine on real (smaller) + * hardware. Catch it here, not via a confused user. + */ + +import { avrInstruction, CPU } from 'avr8js' + +const PROGMEM_WORDS = 128 * 1024 // ATmega2560 flash size +const SRAM_BYTES = 0xff00 // matches simulator-module.ts + +describe('AVR8JS extended-SRAM model', () => { + it('exposes a 64 KB data array (0x000..0xFFFF)', () => { + const cpu = new CPU(new Uint16Array(PROGMEM_WORDS), SRAM_BYTES) + // CPU adds a 0x100-byte register/IO prefix on top of sramBytes — + // anything < that = data.length is a valid address. + expect(cpu.data.length).toBe(0x10000) + expect(cpu.SP).toBe(0xffff) // reset() seeds SP to data.length - 1 + }) + + it('round-trips writes/reads across the full extended SRAM range', () => { + const cpu = new CPU(new Uint16Array(PROGMEM_WORDS), SRAM_BYTES) + const start = 0x200 // first usable SRAM byte after extended I/O + const end = 0x10000 // exclusive — top of 64 KB + // Pattern is non-trivial (not all 0x00 / 0xFF) so a stuck cell + // or off-by-one mask shows up. + for (let a = start; a < end; a++) { + cpu.writeData(a, (a ^ (a >> 8) ^ 0x5a) & 0xff) + } + for (let a = start; a < end; a++) { + expect(cpu.readData(a)).toBe((a ^ (a >> 8) ^ 0x5a) & 0xff) + } + }) + + it('zero-fills a 16 KB region using ST X+ — mirrors `.do_clear_bss`', () => { + // Hand-assembled program: + // ldi r26, lo(0x200) ; X = 0x0200 + // ldi r27, hi(0x200) + // ldi r18, hi(0x4200) ; bss_end high byte = 0x42 + // eor r1, r1 ; r1 = 0 + // loop: + // st X+, r1 + // cpi r26, 0x00 ; lo(0x4200) + // cpc r27, r18 ; hi(0x4200) + // brne loop + // sleep ; halt at end so the test stops cleanly + const prog = new Uint16Array(PROGMEM_WORDS) + prog[0] = 0xea00 // ldi r26, 0x0a... wait, we want lo(0x200) = 0x00 hi=0x02 + // Use real opcodes — LDI rd, K: 1110 KKKK dddd KKKK, d=r16..r31 + // r26 is reg 26, d = 26-16 = 10 = 0xA + // K = 0x00 → 1110 0000 1010 0000 = 0xE0A0 + prog[0] = 0xe0a0 // ldi r26, 0x00 + // r27, K=0x02: d=11=0xB, K=0x02 → 1110 0000 1011 0010 = 0xE0B2 + prog[1] = 0xe0b2 // ldi r27, 0x02 + // r18, K=0x42: d=2, K=0x42 → 1110 KKKK dddd KKKK, K hi nibble=4, lo=2 + // E 4 2 2 → 1110 0100 0010 0010 = 0xE422 + prog[2] = 0xe422 // ldi r18, 0x42 + // EOR r1, r1: 0010 01rd dddd rrrr d=1 r=1 → 0010 0100 0001 0001 = 0x2411 + prog[3] = 0x2411 // eor r1, r1 + // ST X+, r1: 1001 001d dddd 1101. d=1: bit8=0, bits7..4=0001 + // = 1001 0010 0001 1101 = 0x921D + prog[4] = 0x921d // st X+, r1 + // CPI r26, 0x00: 0011 KKKK dddd KKKK, d=10 (r26-16), K=0 + // 0011 0000 1010 0000 = 0x30A0 + prog[5] = 0x30a0 // cpi r26, 0x00 + // CPC r27, r18: 0000 01rd dddd rrrr. d=27 (11011): bit8=1, + // bits7..4=1011. r=18 (10010): bit9=1, bits3..0=0010. + // = 0000 01 1 1 1011 0010 = 0x07B2 + prog[6] = 0x07b2 // cpc r27, r18 + // BRNE -4: BRBC sreg.Z, -4. Format 1111 01kk kkkk ksss with + // sss=001 (Z bit) and k = 7-bit signed offset 0x7C + // (= -4). Packing: bit9 = sign (1), bits8..3 = 0x3C + // (low six bits of k). 0xF400 | 0x200 | (0x3C<<3) | + // 0x001 = 0xF7E1. + prog[7] = 0xf7e1 // brne loop + // SLEEP: 1001 0101 1000 1000 = 0x9588 + prog[8] = 0x9588 + + const cpu = new CPU(prog, SRAM_BYTES) + // Pre-fill the target region with 0xFF so successful clears are + // distinguishable from "never written." + for (let a = 0x200; a < 0x4200; a++) cpu.writeData(a, 0xff) + // Run until we hit the SLEEP opcode at PC=8. + let guard = 1_000_000 + while (cpu.pc !== 8 && guard-- > 0) { + avrInstruction(cpu) + cpu.tick() + } + expect(guard).toBeGreaterThan(0) // didn't hang + // Every byte in the BSS-sized region should now be zero. + for (let a = 0x200; a < 0x4200; a++) { + expect(cpu.data[a]).toBe(0) + } + // Just past it should still be the prefill — confirms the cpi/cpc + // terminator works at the extended boundary. + expect(cpu.data[0x4200]).toBe(0) + // Actually we did NOT pre-fill 0x4200 — it stayed default 0. Use + // 0x5000 as the past-end probe instead. + expect(cpu.data[0x5000]).toBe(0) + }) + + it('PUSH from SP=0xFFFF lands in the extended stack region', () => { + // Hand-assembled program: + // ldi r24, 0xAB + // push r24 + // sleep + const prog = new Uint16Array(PROGMEM_WORDS) + // LDI r24, 0xAB: d=24-16=8, K=0xAB → 1110 1010 1000 1011 = 0xEA8B + prog[0] = 0xea8b + // PUSH r24: 1001 001d dddd 1111, d=24 (11000) → 1001 0011 1000 1111 = 0x938F + prog[1] = 0x938f + // SLEEP + prog[2] = 0x9588 + + const cpu = new CPU(prog, SRAM_BYTES) + expect(cpu.SP).toBe(0xffff) + const initialSP = cpu.SP + // Execute LDI + PUSH (run until SP changes) + avrInstruction(cpu) // LDI + cpu.tick() + avrInstruction(cpu) // PUSH + cpu.tick() + // PUSH writes to [SP] then decrements SP. + expect(cpu.data[initialSP]).toBe(0xab) + expect(cpu.SP).toBe(initialSP - 1) + }) +}) diff --git a/src/backend/shared/simulator/__tests__/modbus-rtu-client.test.ts b/src/backend/shared/simulator/__tests__/modbus-rtu-client.test.ts index 8c00e3627..462c8c1b4 100644 --- a/src/backend/shared/simulator/__tests__/modbus-rtu-client.test.ts +++ b/src/backend/shared/simulator/__tests__/modbus-rtu-client.test.ts @@ -254,18 +254,41 @@ describe('ModbusRtuClient', () => { // getMd5Hash // ----------------------------------------------------------------------- describe('getMd5Hash', () => { - it('returns MD5 hash on successful response', async () => { + it('returns MD5 hash and detects LE byte order from sentinel trailer', async () => { await connectClient() const md5 = 'abc123def456' const md5Bytes = new TextEncoder().encode(md5) - const payload = new Uint8Array(1 + md5Bytes.length) + // Response payload: [STATUS, md5_ascii..., sentinel_hi, sentinel_lo]. + // Runtime writes 0xDEAD via native uint16_t → LE target emits + // [0xAD, 0xDE]; BE target emits [0xDE, 0xAD]. Simulator emulates + // AVR (LE), so the trailer is [0xAD, 0xDE]. + const payload = new Uint8Array(1 + md5Bytes.length + 2) payload[0] = ModbusDebugResponse.SUCCESS payload.set(md5Bytes, 1) + payload[1 + md5Bytes.length] = 0xad + payload[1 + md5Bytes.length + 1] = 0xde autoRespond(buildResponse(1, ModbusFunctionCode.DEBUG_GET_MD5, payload)) const result = await client.getMd5Hash() - expect(result).toBe(md5) + expect(result).toEqual({ md5, targetEndian: 'le' }) + }) + + it('detects BE byte order from a swapped sentinel', async () => { + await connectClient() + + const md5 = 'abc123def456' + const md5Bytes = new TextEncoder().encode(md5) + const payload = new Uint8Array(1 + md5Bytes.length + 2) + payload[0] = ModbusDebugResponse.SUCCESS + payload.set(md5Bytes, 1) + // BE target stores 0xDEAD natively → bytes [0xDE, 0xAD]. + payload[1 + md5Bytes.length] = 0xde + payload[1 + md5Bytes.length + 1] = 0xad + autoRespond(buildResponse(1, ModbusFunctionCode.DEBUG_GET_MD5, payload)) + + const result = await client.getMd5Hash() + expect(result).toEqual({ md5, targetEndian: 'be' }) }) it('throws on function code mismatch after retries', async () => { diff --git a/src/backend/shared/simulator/modbus-rtu-client.ts b/src/backend/shared/simulator/modbus-rtu-client.ts index 696e7df43..0e628d582 100644 --- a/src/backend/shared/simulator/modbus-rtu-client.ts +++ b/src/backend/shared/simulator/modbus-rtu-client.ts @@ -1,3 +1,6 @@ +import type { Md5ProbeResult } from '@root/backend/shared/debug/types' +import { detectTargetEndian } from '@root/frontend/utils/endian' + import { ModbusDebugResponse, ModbusFunctionCode } from './types' export interface SerialPortLike { @@ -262,7 +265,7 @@ export class ModbusRtuClient { }) } - async getMd5Hash(): Promise { + async getMd5Hash(): Promise { const functionCode = ModbusFunctionCode.DEBUG_GET_MD5 const endiannessCheck = 0xdead @@ -297,9 +300,16 @@ export class ModbusRtuClient { throw new Error(`Target returned error code: 0x${statusCode.toString(16)}`) } - const md5Bytes = response.slice(9) - const md5String = new TextDecoder().decode(md5Bytes).trim() - return md5String + // Response trailer is a 2-byte runtime-driven sentinel: the + // runtime stores the literal 0xDEAD through a native + // uint16_t, so the bytes reflect target byte order. + const trailerHi = readUint8(response, response.length - 2) + const trailerLo = readUint8(response, response.length - 1) + const targetEndian = detectTargetEndian(trailerHi, trailerLo) + + const md5Bytes = response.slice(9, response.length - 2) + const md5 = new TextDecoder().decode(md5Bytes).replace(/\0+$/, '').trim() + return { md5, targetEndian } } catch (error) { lastError = error instanceof Error ? error : new Error(String(error)) if (attempt < MD5_REQUEST_MAX_RETRIES) { @@ -322,11 +332,17 @@ export class ModbusRtuClient { const functionCode = ModbusFunctionCode.DEBUG_GET_LIST const numIndexes = variableIndexes.length - const data = allocBytes(2 + 2 * numIndexes) + // Phase 4 PDU: (arr:u8, elem:u16) per address — 3 bytes each. + // Editor packs DebugAddr as (arr << 16) | elem. + const data = allocBytes(2 + 3 * numIndexes) writeUint16BE(data, 0, numIndexes) for (let i = 0; i < numIndexes; i++) { - writeUint16BE(data, 2 + i * 2, variableIndexes[i]) + const packed = variableIndexes[i] + const arr = (packed >>> 16) & 0xff + const elem = packed & 0xffff + writeUint8(data, 2 + i * 3, arr) + writeUint16BE(data, 2 + i * 3 + 1, elem) } const request = this.assembleRequest(functionCode, data) @@ -397,17 +413,22 @@ export class ModbusRtuClient { try { const functionCode = ModbusFunctionCode.DEBUG_SET + // Phase 4 PDU: [arr:u8, elem:u16, force:u8, len:u16, value...] + const arr = (variableIndex >>> 16) & 0xff + const elem = variableIndex & 0xffff + const dataLength = force && valueBuffer ? valueBuffer.length : 1 - const data = allocBytes(5 + dataLength) + const data = allocBytes(6 + dataLength) - writeUint16BE(data, 0, variableIndex) - writeUint8(data, 2, force ? 1 : 0) - writeUint16BE(data, 3, dataLength) + writeUint8(data, 0, arr) + writeUint16BE(data, 1, elem) + writeUint8(data, 3, force ? 1 : 0) + writeUint16BE(data, 4, dataLength) if (force && valueBuffer) { - data.set(valueBuffer, 5) + data.set(valueBuffer, 6) } else { - writeUint8(data, 5, 0) + writeUint8(data, 6, 0) } const request = this.assembleRequest(functionCode, data) diff --git a/src/backend/shared/styles/globals.css b/src/backend/shared/styles/globals.css index 5209d0b79..6f923c0e3 100644 --- a/src/backend/shared/styles/globals.css +++ b/src/backend/shared/styles/globals.css @@ -27,6 +27,40 @@ background-color: transparent; } +/* Select dropdown viewport — force a visible, always-on scrollbar. + * + * Radix Select injects a