CALL BY ADDRESS

SOURCE CODE:
#include<iostream.h>
#include<conio.h>
void swap(int *x,int *y)
{
int temp;
temp=*x;
*x=*y;
*y=*temp;
cout<<"\n The value of a and b in swap fun is\t "<<*x<<"\t"<<*y;
}
void main()
{
int a,b;
clrscr();
cout<<"\n Enter the value of a and b:\n";
cin>>a>>b;
cout<<"\n The value of a and b before the swap fun is:\t"<<a<<"\t"<<b;
swap(&a,&b);
cout<<"\n\n The value of a and b after the swap fun is:\t"<<a<<"\t"<<b;
getch();
}

OUTPUT:

Enter the value of a and b:
6
8

The value of a and b before the swap fun is: 6    8

The value of a and b in swap fun is: 8    6

The value of a and b after the swap fun is: 6       8
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