STL Sample for the min_element Function
ID: Q156619
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The information in this article applies to:
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The Standard C++ Library, included with:
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Microsoft Visual C++ 32-bit Edition, version 4.2
SUMMARY
The sample code below illustrates how to use the min_element STL function
in Visual C++.
MORE INFORMATION
Required Header
<algorithm>
Prototype
template<class InputIterator> inline
InputIterator min_element(InputIterator first,
InputIterator last)
NOTE: The class/parameter names in the prototype do not match the original
version in the header file. Some have been modified to improve readability.
Description
The min_element algorithm returns the location of the minimum element in
the sequence [first, last).
The non-predicate version of min_element uses operator< for comparisons.
Sample Code
//////////////////////////////////////////////////////////////////////
//
// Compile options needed: /GX
//
// min_element.cpp : Illustrates how to use the min_element
// function.
//
// Functions:
//
// min_element - Return the minimum element within a range.
//
// Written by Kalindi Sanghrajka
// of Microsoft Product Support Services,
// Software Core Developer Support.
// Copyright (c) 1996 Microsoft Corporation. All rights reserved.
//////////////////////////////////////////////////////////////////////
// disable warning C4786: symbol greater than 255 character,
// okay to ignore
#pragma warning(disable: 4786)
#include <iostream>
#include <algorithm>
#include <functional>
#include <vector>
void main()
{
const int VECTOR_SIZE = 8 ;
// Define a template class vector of int
typedef vector<int, allocator<int> > IntVector ;
//Define an iterator for template class vector of strings
typedef IntVector::iterator IntVectorIt ;
IntVector Numbers(VECTOR_SIZE) ;
IntVectorIt start, end, it, location ;
// Initialize vector Numbers
Numbers[0] = 4 ;
Numbers[1] = 10 ;
Numbers[2] = 10 ;
Numbers[3] = 30 ;
Numbers[4] = 69 ;
Numbers[5] = 70 ;
Numbers[6] = 96 ;
Numbers[7] = 100 ;
start = Numbers.begin() ; // location of first
// element of Numbers
end = Numbers.end() ; // one past the location
// last element of Numbers
// print content of Numbers
cout << "Numbers { " ;
for(it = start; it != end; it++)
cout << *it << " " ;
cout << " }\n" << endl ;
// return the minimum element in the Numbers
location = min_element(start, end) ;
cout << "The minimum element in Numbers is: "
<< *location << endl ;
}
Program Output is:
Numbers { 4 10 10 30 69 70 96 100 }
The minimum element in Numbers is: 4
REFERENCES
Visual C++ Books On Line: Visual C++ Books:C/C++:Standard C++ Library
Reference.
Additional query words:
STL min_element
Keywords : kbcode STLIss
Version : winnt:
Platform : winnt
Issue type : kbhowto