};

};

}

> struct my_struct {
>    void (*my_func)(struct my_struct *);
>    unsigned char my_flag;
> };

> void f (struct my_struct *a) {
>    a->my_flag = 1;
> };

> int main (void) {
>    struct my_struct a;
>    a.my_func = &f;
>    a.my_flag = 0;
>    a.my_func (&a);
>    return 0;
> }

> Is this code acceptable according to the C standard? What if the function f()
> modified a->my_func instead of my_flag?