DOCUMENT:Q158092  29-APR-2002  [visualc]
TITLE   :STL Sample for the List::insert Function
PRODUCT :Microsoft C Compiler
PROD/VER::4.2,5.0,6.0
OPER/SYS:
KEYWORDS:kbcode kbVC420 kbVC500 kbVC600 kbDSupport

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The information in this article applies to:

 - The Standard C++ Library, used with:
    - Microsoft Visual C++, 32-bit Enterprise Edition, versions 4.2, 5.0, 6.0 
    - Microsoft Visual C++, 32-bit Professional Edition, versions 4.2, 5.0, 6.0 
    - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
    - Microsoft Visual C++.NET (2002) 
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SUMMARY
=======

The sample code below illustrates how to use the list::insert STL function in
Visual C++.

MORE INFORMATION
================

Required Header
---------------

      <list>

Prototype
---------

      iterator insert(iterator it, const T& x = T());
      void insert(iterator it, size_type n, const T& x);
      void insert(iterator it, const_iterator first, const_iterator last);
      void insert(iterator it, const T *first, const T *last);

NOTE: The class/parameter names in the prototype may not match the version in the
header file. Some have been modified to improve readability.

Description
-----------

Each of the member functions inserts, after the element pointed to by it in the
controlled sequence, a sequence specified by the remaining operands. The first
member function inserts a single element with value x and returns an iterator
that points to the newly inserted element. The second member function inserts a
repetition of n elements of value x. The last two member functions insert the
sequence [first, last).

Sample Code
-----------

      ////////////////////////////////////////////////////////////////////// 
      // 
      // Compile options needed: -GX
      // 
      // insert.cpp :  Shows the various ways to insert elements into a
      //               list<T>.
      // 
      // Functions:
      // 
      //    list::insert
      // 
      // Written by Andrew Bradnan
      // Copyright (c) 1996 Microsoft Corporation. All rights reserved.
      ////////////////////////////////////////////////////////////////////// 

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

   #if _MSC_VER > 1020   // if VC++ version is > 4.2
      using namespace std;  // std c++ libs implemented in std
      #endif

      typedef list<int, allocator<int> > LISTINT;

      void main()
      {
          int rgTest1[] = {5,6,7};
          int rgTest2[] = {10,11,12};

          LISTINT listInt;
          LISTINT listAnother;
          LISTINT::iterator i;

          // Insert one at a time
          listInt.insert (listInt.begin(), 2);
          listInt.insert (listInt.begin(), 1);
          listInt.insert (listInt.end(), 3);

          // 1 2 3
          for (i = listInt.begin(); i != listInt.end(); ++i)
              cout << *i << " ";
          cout << endl;

          // Insert 3 fours
          listInt.insert (listInt.end(), 3, 4);

          // 1 2 3 4 4 4
          for (i = listInt.begin(); i != listInt.end(); ++i)
              cout << *i << " ";
          cout << endl;

          // Insert an array in there
          listInt.insert (listInt.end(), rgTest1, rgTest1 + 3);

          // 1 2 3 4 4 4 5 6 7
          for (i = listInt.begin(); i != listInt.end(); ++i)
              cout << *i << " ";
          cout << endl;

          // Insert another LISTINT
          listAnother.insert (listAnother.begin(), rgTest2, rgTest2+3);
          listInt.insert (listInt.end(), listAnother.begin(),
          listAnother.end());

          // 1 2 3 4 4 4 5 6 7 10 11 12
          for (i = listInt.begin(); i != listInt.end(); ++i)
              cout << *i << " ";
          cout << endl;
      }

Program Output is as follows:

   1 2 3
   1 2 3 4 4 4
   1 2 3 4 4 4 5 6 7
   1 2 3 4 4 4 5 6 7 10 11 12

REFERENCES
==========

Visual C++ Books On Line: Visual C++ Books:C/C++:Standard C++ Library Reference.

Additional query words: STL STLSample list::insert

======================================================================
Keywords          : kbcode kbVC420 kbVC500 kbVC600 kbDSupport 
Technology        : kbVCsearch kbAudDeveloper kbVCLibrary
Version           : :4.2,5.0,6.0
Issue type        : kbinfo

=============================================================================

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