Swap Two Numbers Using Pointers in C++

A very simple program to ask the user to give two numbers and swap the arrangement of the numbers using functions and pointers in C++ programming language.

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Program Listing

swap.cpp

#include <iostream>

#include <stdlib.h>

using namespace std;

void GetVal(int& Get1,int& Get2);

void SwapVal(int& Swap1,int& Swap2);

void ShowVal(int& Show1,int& Show2);

int main()

{

    int FirstNum,SecondNum;

    GetVal(FirstNum,SecondNum);

    SwapVal(FirstNum,SecondNum);

    ShowVal(FirstNum,SecondNum);

    system("PAUSE");

    return 0;

}

void GetVal(int& Get1,int& Get2)

{

 cout <<"SWAP TWO NUMBERS USING POINTERS AND FUNCTIONS IN C++";

cout << "Enter 2 values: ";

     cin >> Get1 >> Get2;

}

void SwapVal(int& Swap1,int& Swap2)

{

     int temp;

     temp = Swap1;

     Swap1 = Swap2;

     Swap2 = temp;

}

void ShowVal(int& Show1,int& Show2)

{

     cout << Show1 << "  " << Show2 << "\n";

}