How to use the deque::begin and deque:end STL functions in Visual C++

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This article was previously published under Q156591

SUMMARY

The sample code below illustrates how to use the deque::begin and deque::end STL functions in Visual C++.

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MORE INFORMATION

Required header

< deque>

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Prototype

   const_iterator begin() const;
   iterator begin();

   const_iterator end() const;
   iterator end();

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

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Description

The begin member function returns a random-access iterator that points at the first element of the sequence, or just beyond the end of an empty sequence.

The end member function returns a random-access iterator that points just beyond the end of the sequence.

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Sample code

Note In the first line of the sample code section, /GX is equivalent to /EHsc in Visual C++ .NET or in Visual C ++ 2005 and is set by default.

////////////////////////////////////////////////////////////////////// 
// 
// Compile options needed: -GX
// 
// deque.cpp :
// 
// Functions:
// 
//    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<int, allocator<int> >  INTDEQUE;

void main()

{

    // Create A and fill it with elements 1,2,3,4 and 5
    // using push_back function

    INTDEQUE  A;
    A.push_back(1);
    A.push_back(2);
    A.push_back(3);
    A.push_back(4);
    A.push_back(5);

    // Print the contents of A using iterator
    // and functions begin() and end()

     INTDEQUE::iterator pi;

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

}

Program Output is:

1 2 3 4 5

If you experience the C1010 error when you compile the sample code in Visual Studio .NET, see the following article in Microsoft Knowledge base:

815644 (http://support.microsoft.com/kb/815644/ ) INFO: Most common causes of C1010 error

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REFERENCES

For the same topic about deque::begin and deque::end, visit the following MSDN Web site: http://msdn.microsoft.com/en-us/library/1ew0xf3z.aspx (http://msdn.microsoft.com/en-us/library/1ew0xf3z.aspx)

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