swap functions - use of pointers and functions (C language)

Using C languages- swapping the values

 #include <stdio.h>

// swapping function

void swap(int *a, int *b)

{

    int temp;

    temp = *a;

    *a = *b;

    *b = temp;

    // printf("Value of :\n c= %d   d= %d\n", a, b);

}

int main()

{

    int c = 9;

    int d = 3;

    /////////////////Pointers

    int *ptr_c;

    int *ptr_d;

    ptr_c = &c;

    ptr_d = &d;

    //////////////

    // Deferencing the values stored at pointer by using '*' at start of pointer

    printf("--->%d \n", *ptr_c);

    // Deferencing the values stored at pointer by using '*' at start of pointer

    printf("--->%d \n", *ptr_d);

    //////////////////////////

    // swapping two values ---CAll by Reference

    swap(ptr_c, ptr_d);

    printf("Value of :\n c= %d   d= %d\n", c, d);

    return 0;

}