Swapping Two Values using call by reference

/*

 * swapping_values_using_call_by_reference.cpp

 *

 *  Created on: Jan 12, 2011

 *      Author: bgsudeep

 */

#include<iostream.h>

void swap(int &, int &);

int main()

{

int a, b;

cout<<"Please input two numbers separated by space or an enter key: "<<endl;

cin>>a>>b;

swap(a,b);

cout<<"Your swapped number is: "<<endl<<a<<" and "<<b;

return 0;

}

void swap(int &pa, int &pb)

{

int temp;

temp=pa;

pa=pb;

pb=temp;

}