DOCUMENT:Q158577  07-MAY-2001  [visualc]
TITLE   :STL Sample for the set::max_size Function
PRODUCT :Microsoft C Compiler
PROD/VER:winnt: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:

 - 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 
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SUMMARY
=======

The following sample code illustrates how to use the set::max_size STL function
in Visual C++.

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

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

      <set>

Prototype
---------

      template<class _K, class _Pr, class _A>
      class set {
      public:
      // Function 1:

         size_type max_size() const;

      }

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
-----------

The max_size function is used to determine the maximum number of elements the
controlled sequence can contain.

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

   ////////////////////////////////////////////////////////////////////// 
   // 
   // Compile options needed: -GX
   // 
   // SetMax_size.cpp:
   //      Illustrates how to use the max_size function to determine how
   //      many elements the controlled sequence can contain.
   // 
   // Functions:
   // 
   //    max_size     Returns the maximum number of elements the controlled
   //                 sequence can contain.
   // 
   // Written by Derek Jamison
   // of Microsoft Technical Support,
   // Copyright (c) 1996 Microsoft Corporation. All rights reserved.
   ////////////////////////////////////////////////////////////////////// 

   #pragma warning(disable:4786)

   #include <set>
   #include <iostream>
   #include <assert.h>
   using namespace std;

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

   typedef set<int,less<int>,allocator<int> > SET_INT;

   void main() {

     SET_INT s1;

     cout << "s1.max_size() returned ";
     cout << s1.max_size() << endl;  // 1073741823 [value may vary]
     for (int x=0;(x<1000 && x<s1.max_size());x++)

      assert(s1.insert(x).second);

     cout << "s1.size() returned ";
     cout << s1.size() << endl; // 1000
   }

Program Output
--------------

   s1.max_size() returned 1073741823
   s1.size() returned 1000

REFERENCES
==========

Visual C++ Books Online: Visual C++ Books; C/C++; Standard C++ Library Reference

Additional query words: STL STLSample max_size string

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Keywords          : kbcode kbVC420 kbVC500 kbVC600 kbDSupport 
Technology        : kbVCsearch kbAudDeveloper kbVC420 kbVC500 kbVC600 kbVC32bitSearch kbVC500Search
Version           : winnt:4.2,5.0,6.0
Issue type        : kbinfo

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