swap_integers_by_pointers_v1.c

/*

    swap_integers_by_pointers_v1.c

    Task from Mirha Wali
    https://web.facebook.com/mirha.wali.3154

    https://web.facebook.com/photo.php?fbid=144111560601973&set=gm.1591028384389339&type=3&theater


    You can find all my C programs at Dragan Milicev's pastebin:

    https://pastebin.com/u/dmilicev

*/

#include <stdio.h>

// function to swap the integers a and b
void swap( int *a, int *b )
{
    int temp;

    printf("\n In function swap(), before swapping: \n");
    printf("\n Value a = %d is on address %p \n", *a, a );
    printf("\n Value b = %d is on address %p \n\n", *b, b );

    temp = *a;
    *a = *b;
    *b = temp;

    printf("\n In function swap(), after swapping: \n");
    printf("\n Value a = %d is on address %p \n", *a, a );
    printf("\n Value b = %d is on address %p \n", *b, b );
}

int main(void)
{
    int a=2, b=3;

    swap( &a, &b );

    printf("\n\n In main(), after calling function swap() \n");
    printf("\n Value a = %d is on address %p \n", a, &a );
    printf("\n Value b = %d is on address %p \n", b, &b );

    return 0;

} // main()