DOCUMENT:Q156589  26-MAR-2002  [visualc]
TITLE   :STL Sample for deque::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 deque::insert, begin, and end
STL functions in Visual C++.

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

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

      <deque>

Prototype
---------

      iterator insert(iterator iter, const T& x = T());
      void insert(iterator iter, size_type n, const T& x);
      void insert(iterator iter, const_iterator first,const_iterator 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 these functions inserts a sequence specified by the remaining operands
after the element pointed to by iter in the container. 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 third member function inserts the sequence [first,
last).

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

NOTE: In the first line of the sample code section, /GX is equivalent to /EHsc in
VC++ .NET and is set by default.

   ////////////////////////////////////////////////////////////////////// 
   // 
   // Compile options needed: -GX
   // 
   // deque.cpp :
   // 
   // Functions:
   // 
   //    insert
   //    begin
   //    end
   // 
   // Written by Bobby Mattappally
   // of Microsoft Product Support Services,
   // Copyright (c) 1996 Microsoft Corporation. All rights reserved.
   ////////////////////////////////////////////////////////////////////// 

   /* Compile options needed:-GX
   */ 
   #include <iostream>
   #include <deque>

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

   typedef deque<char, allocator<char> >  CHARDEQUE;

   void print_contents (CHARDEQUE  deque);

   void main()

   {

       //create a with 3 A's
       CHARDEQUE  a(3,'A');

       //create b with 2 B's.
       CHARDEQUE  b(2,'B');

       //print out the contents
       print_contents (a);
       print_contents (b);

       //insert 'X' to the beginning of a
       a.insert(a.begin(),'X');
       print_contents (a);

       //insert 'Y' to the end of a
       a.insert(a.end(),'Y');
       print_contents (a);

       //inset 3 'Z's to one item before the end of a
       a.insert(a.end()-1,3,'Z');
       print_contents (a);

       //insert to the end of a from b
       a.insert(a.end(),b.begin(),b.end());
       print_contents (a);

   }

   //function to print the contents of deque
   void print_contents (CHARDEQUE  deque)

   {

       CHARDEQUE::iterator pdeque;

       cout <<"The output is: ";

       for(pdeque = deque.begin();
           pdeque != deque.end();
           pdeque++)
       {
           cout << *pdeque <<" " ;
       }
           cout<<endl;

   }

Program Output is:

The output is: A A A
The output is: B B
The output is: X A A A
The output is: X A A A Y
The output is: X A A A Z Z Z Y
The output is: X A A A Z Z Z Y B B

REFERENCES
==========

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

Additional query words: STL STLSample insert begin end

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

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