extern void abort(void);
extern void __assert_fail(const char *, const char *, unsigned int, const char *) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
void reach_error() { __assert_fail("0", "test16.c", 3, "reach_error"); }


void equal(int *a, int *b) {
        if (*a != *b) {
                goto ERROR;
        }
        return;

        ERROR: {reach_error();abort();}
        return;
}

int a, b;
int *pa, *pb;

int main() {
        pa = &a;
        pb = &b;

        a = 0;
        b = 1;

        *pa = *pb;

        equal(&a, &b);
        return 0;
}