Write a C++ program that explain the call by value functionality.

Write a C++ program that explain the call by value functionality.

Program Code:

#include <iostream>

using namespace std;

// function declaration 

void changeValue(int a);

// definition of main() function with function call to user defined function changeValue()

int main()

{

int a=50;

// call to user defined function in main()

changeValue(a);

cout << "The value of a is remain same after manipulation in function definition : " ;

cout<< a << "." ;

cout<< endl;

return 0;

}

// definition of user defined function which change the value

void changeValue(int value)

{

value = 600;

}

The program output is tested on www.jdoodle.com

Output:

The value of a is remain same after manipulation in function definition : 5

Thanks

Mukesh Rajput