//ww:run-exit 54
package main;
type inner = struct { x: i64, y: i64 };
type big = struct { a: i64, ib: inner };
type t = struct { pc: size, bg: big };
fn setbg(ts: *[]t, i: size) void = {
	(*ts)[i].bg = big { a = 1, ib = inner { x = 2, y = 3 } };
};
export fn main() i32 = {
	let z: big = big { a = 0, ib = inner { x = 0, y = 0 } };
	let ts: []t = [];
	append(ts, t { pc = 7, bg = z });
	setbg(&ts, 0);
	let bp: *u8 = ts.ptr: *u8;
	if (bp[8] != 1u8) { return 1; };
	if (bp[16] != 2u8) { return 2; };
	if (bp[24] != 3u8) { return 3; };
	if (ts[0].pc != 7) { return 4; };
	return 54;
};