Page 45 - INTRODUCTION_TO_C++_Neat

CALL BY VALUE

#include <iostream.h>
void swap(int x, int y); // function declaration
int main ()
{

int a = 100; // local variable declaration:
int b = 200;

cout << "Before swap, value of a :" << a << endl; cout << "Befo

swap, value of b :" << b << endl;

swap(a, b); // calling a function to swap the value
cout << "After swap, value of a :" << a << endl;
cout << "After swap, value of b :" << b << endl;
return 0; }