18.3 ListInsert.cpp

#include <list>
#include <iostream>
using namespace std;

template <typename T>
void DisplayContents (const T& container)
{
	for (auto element = container.cbegin();
         element != container.cend();
         ++ element )
       cout << *element << ' ';

   cout << endl;
}

int main ()
{
   list <int> linkInts1;

   // Inserting elements at the beginning...
   linkInts1.insert (linkInts1.begin (), 2);
   linkInts1.insert (linkInts1.begin (), 1);

   // Inserting an element at the end...
   linkInts1.insert (linkInts1.end (), 3);

   cout << "The contents of list 1 after inserting elements:" << endl;
   DisplayContents (linkInts1);

   list <int> linkInts2;

   // Inserting 4 elements of the same value 0...
   linkInts2.insert (linkInts2.begin (), 4, 0);

   cout << "The contents of list 2 after inserting '";
   cout << linkInts2.size () << "' elements of a value:" << endl;
   DisplayContents (linkInts2);

   list <int> linkInts3;

   // Inserting elements from another list at the beginning...
   linkInts3.insert (linkInts3.begin (),
                    linkInts1.begin (), linkInts1.end ());

   cout << "The contents of list 3 after inserting the contents of ";
   cout << "list 1 at the beginning:" << endl;
   DisplayContents (linkInts3);

   // Inserting elements from another list at the end...
   linkInts3.insert (linkInts3.end (),
                  linkInts2.begin (), linkInts2.end ());

   cout << "The contents of list 3 after inserting ";
   cout << "the contents of list 2 at the end:" << endl;
   DisplayContents (linkInts3);

   return 0;
}