/*
 * swap.c -- A modular program that swaps 2 numbers.
 */

#include <stdio.h>

void swap (int *, int *);

main()
{
  int input1, input2;

  printf ("Enter first integer:  ");
  scanf ("%d", &input1);

  printf ("Enter second integer:  ");
  scanf ("%d", &input2);

  swap (&input1, &input2);

  printf ("The swapped values are %d and %d.\n", input1, input2);
}

void swap(int *x, int *y)
{
  int temp;

  temp = *x;
  *x = *y;
  *y = temp;
}