INFO: STL Sample for the make_pair Function (156899)

MORE INFORMATION

Required Header

   <utility>
				

Prototype

   template<class first, class second> inline

         pair<first, second> make_pair(const first& _X, const second& _Y)
				

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 make_pair function creates a pair structure that contains two data elements of any type.

Sample Code

/////////////////////////////////////////////////////////////////////// 
// Compile options needed: none
// 
// mkpair.cpp: Illustrates how to use the make_pair function.
// 
// Functions: make_pair - creates an object pair containing two data
//                        elements of any type.
// 
// Written by Mark Hagen
// of Microsoft Technical Support
// Copyright (c) 1996 Microsoft Corporation.
// All rights reserved.
/////////////////////////////////////////////////////////////////////// 

/* Compiler options needed: none
*/ 

#include <utility>
#include <iostream>

/* STL pair data type containing int and float
*/ 

using namespace std;

typedef struct pair<int,float> PAIR_IF;

void main(void)

{
  PAIR_IF pair1=make_pair(18,3.14f);

  cout << pair1.first << "  " << pair1.second << endl;
  pair1.first=10;
  pair1.second=1.0f;
  cout << pair1.first << "  " << pair1.second << endl;
}
				

Program Output is:

18  3.14
10  1