Pass by reference in C

Question

I\'m trying to use pass by reference in C so that the function can modify the values of the parameters passed to it. This is the function signature:

int loc         


        

Answer 1

C does not have references. You need to pass a pointer to the variable you wish to modify:

int locate(char *name, int *s, int *i)
{
    /* ... */

    *s = 123;
    *i = 456;
}

int s = 0;
int i = 0;
locate("GMan", &s, &i);

/* s & i have been modified */