Exercise 1 and 2 and 3

exercise/01/color.cpp

@@ -0,0 +1,71 @@
+#include "stdafx.h"
+#include "color.h"
+
+namespace
+{
+  double value_cutoff(double value)
+  {
+    return value > 0 ? std::min(value, 1.) : std::max(value, 0.);
+  }
+
+  long scale_color(double value)
+  {
+    return 255 * value;
+  }
+}
+
+color::color() : color{0, 0, 0}
+{
+}
+
+color::color(const double red, const double green, const double blue)
+{
+  set_red(red);
+  set_green(green);
+  set_blue(blue);
+}
+
+void color::set_red(double red)
+{
+  red_ = value_cutoff(red);
+}
+
+void color::set_green(double green)
+{
+  green_ = value_cutoff(green);
+}
+
+void color::set_blue(double blue)
+{
+  blue_ = value_cutoff(blue);
+}
+
+double color::get_red() const
+{
+  return red_;
+}
+
+double color::get_green() const
+{
+  return green_;
+}
+
+double color::get_blue() const
+{
+  return blue_;
+}
+
+unsigned long color::get_color_ref() const
+{
+  return scale_color(red_) + scale_color(green_) * 256 + scale_color(blue_) * 65536;
+}
+
+double color::get_luminance() const
+{
+  return 0.2126 * red_ + 0.7152 * green_ + 0.0722 * blue_;
+}
+
+bool operator==(const color& lhs, const color& rhs)
+{
+  return lhs.red_ == rhs.red_ && lhs.green_ == rhs.green_ && lhs.blue_ == rhs.blue_;
+}

exercise/01/color.h

@@ -0,0 +1,28 @@
+#pragma once
+
+class color
+{
+private:
+  double red_;
+  double green_;
+  double blue_;
+
+public:
+  color();
+  color(double red, double green, double blue);
+
+  double get_red() const;
+  double get_green() const;
+  double get_blue() const;
+
+  void set_red(double red);
+  void set_green(double green);
+  void set_blue(double blue);
+
+  unsigned long get_color_ref() const;
+  double get_luminance() const;
+
+  friend bool operator==(const color&, const color&);
+};
+
+bool operator==(const color& lhs, const color& rhs);

exercise/01/color_test.cpp

@@ -69,6 +69,13 @@ namespace color_test
 
 		TEST_METHOD(test_conversion_colorref)
 		{
+      auto t1 = RGB(255, 0, 0);
+      auto t2 = RGB(0, 255, 0);
+      auto t3 = RGB(0, 0, 255);
+      auto t4 = RGB(255, 255, 255);
+      auto t5 = RGB(127, 127, 127);
+      long t6 = 255 * 0.5;
+
 			Assert::AreEqual(RGB(255,   0,   0), color( 1, 0, 0 ).get_color_ref());
 			Assert::AreEqual(RGB(  0, 255,   0), color( 0, 1, 0 ).get_color_ref());
 			Assert::AreEqual(RGB(  0,   0, 255), color( 0, 0, 1 ).get_color_ref());

exercise/01/color_test.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28010.2050
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "color_test", "color_test.vcxproj", "{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Debug|x64.ActiveCfg = Debug|x64
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Debug|x64.Build.0 = Debug|x64
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Debug|x86.ActiveCfg = Debug|Win32
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Debug|x86.Build.0 = Debug|Win32
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Release|x64.ActiveCfg = Release|x64
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Release|x64.Build.0 = Release|x64
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Release|x86.ActiveCfg = Release|Win32
+		{F6408CAA-4C86-4D98-8D13-9AF4DF77D23B}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {770F20AC-2CA1-418A-9FEF-E30F914E55E6}
+	EndGlobalSection
+EndGlobal

exercise/01/stdafx.h

@@ -2,3 +2,4 @@
 
 #include <SDKDDKVer.h>
 #include "CppUnitTest.h"
+#include <algorithm>

exercise/02/array.cpp

@@ -1 +1,67 @@
 #include "array.h"
+#include <stdexcept>
+#include <algorithm>
+
+array::array() : p_{nullptr}, n_{0}
+{
+}
+
+array::array(int size, double value) : p_{new double[size]}, n_{size}
+{
+  std::fill_n(p_, size, value);
+}
+
+array::array(const array& other) : array(other.n_, other.p_ != nullptr ? other.at(0) : 0)
+{
+}
+
+array::array(array&& other) noexcept : p_{other.p_}, n_{other.n_}
+{
+  other.p_ = nullptr;
+  other.n_ = 0;
+}
+
+array::~array()
+{
+  delete[] p_;
+  p_ = nullptr;
+}
+
+int array::size() const
+{
+  return n_;
+}
+
+double array::at(int index) const
+{
+  if (index < 0 || index >= n_) throw std::out_of_range("Index is out of range");
+  return p_[index];
+}
+
+array& array::operator=(const array& other)
+{
+  if (this != &other)
+  {
+    delete[] p_;
+    n_ = other.n_;
+    p_ = new double[n_];
+
+    std::fill_n(p_, n_, other.at(0));
+  }
+
+  return *this;
+}
+
+array& array::operator=(array&& other) noexcept
+{
+  if (this != &other)
+  {
+    delete[] p_;
+    p_ = other.p_;
+    n_ = other.n_;
+
+    other.p_ = nullptr;
+    other.n_ = 0;
+  }
+  return *this;
+}

exercise/02/array.h

@@ -1,7 +1,22 @@
+#pragma once
+
 // do not use standard container as member or base class
 class array
 {
-	double* p;
-	int n;
+private:
+  double* p_;
+  int n_;
+
 public:
+  array();
+  array(int size, double value);
+  array(const array& other);
+  array(array&& other) noexcept;
+  ~array();
+
+  int size() const;
+  double at(int index) const;
+
+  array& operator=(const array& other);
+  array& operator=(array&& other) noexcept;
 };

exercise/02/array.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28010.2050
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "array", "array.vcxproj", "{BB15329E-10D8-4740-94BC-64C50BA4EE12}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x86 = Debug|x86
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{BB15329E-10D8-4740-94BC-64C50BA4EE12}.Debug|x86.ActiveCfg = Debug|Win32
+		{BB15329E-10D8-4740-94BC-64C50BA4EE12}.Debug|x86.Build.0 = Debug|Win32
+		{BB15329E-10D8-4740-94BC-64C50BA4EE12}.Release|x86.ActiveCfg = Release|Win32
+		{BB15329E-10D8-4740-94BC-64C50BA4EE12}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {8FF17F18-E60F-4D76-B3B6-97439B571F92}
+	EndGlobalSection
+EndGlobal

exercise/02/array.vcxproj

@@ -56,6 +56,7 @@
       <AdditionalIncludeDirectories>$(VCInstallDir)UnitTest\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <UseFullPaths>true</UseFullPaths>
+      <LanguageStandard>stdcpp17</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>