scc

 1struct str {
 2	int a;
 3	char v[];
 4};
 5
 6int
 7main(void)
 8{
 9	struct str *p;
10	int ary[20];
11
12	p = (struct str *) ary;
13	p->a = 2;
14	p->v[0] = 1;
15
16	return !(p->a + p->v[0] == 3);
17}