C program to swap the address of two variables.
C Program
#include <stdio.h> #include <conio.h> void swap(int *,int *); void main() { int a=10,b=20; clrscr(); printf("\nVALUES OF a AND b BEFORE SWAPING ARE %d %d",a,b); swap(&a,&b); printf("\nVALUES OF a AND b AFTER SWAPING ARE %d %d",a,b); getch(); } void swap(x,y) int *x,*y; { int t; t=*x; *x=*y; *y=t; }