change_variable_via_pointer_v1.c

/*

    change_variable_via_pointer_v1.c


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

    https://pastebin.com/u/dmilicev

*/

#include <stdio.h>

int main(void)
{
    int a, b;
    int *pa, *pb;

    a = 2;  // initialization
    b = 3;

    printf("\n a = %d \t b = %d \n", a, b);

    pa = &a;    // pa is pointer to a. It is memory address where value of a is stored.
    pb = &b;

    *pa = 4;    // changing value of a by its pointer pa
    *pb = 5;

    printf("\n a = %d \t b = %d \n", a, b);

    // or, by pointers

    printf("\n a = %d \t b = %d \n", *pa, *pb);


    return 0;

} // main()