// expect error: zy: index 4 out of range (length 0)
// spec 3.7.4: a freed block has length 0, so an index through a stale copy of its pointer traps
include rt;
void pn(int x) { rt.put_n(x); rt.put_c(10); }
int g;
// unchecked: the analyzer stays out, so the block is freed (quarantined, with its check word) rather than recycled
unchecked int make() { let p = rt.new(5); p[4] = 1; g = p; return 0; }
unchecked int drop() { let p = g; rt.free(p); return 0; }
fn main() {
	word* q; int i = 4;
	make(); q = g as word*; pn(q[i]);
	drop(); q = g as word*; pn(q[i]);
	return 0;
}
// zc0: skip