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;
}