//ww:run-exit 73
package main;
type holder = struct { tag: i64, xs: []i64 };
fn addfield(h: *holder, v: i64) void = { append(h.xs, v); };
export fn main() i32 = {
	let hl: holder = holder { tag = 2, xs = [] };
	addfield(&hl, 9);
	addfield(&hl, 11);
	if (hl.xs[0] != 9) { return 1; };
	if (hl.xs[1] != 11) { return 2; };
	if (hl.xs.len != 2) { return 3; };
	if (hl.tag != 2) { return 4; };
	return 73;
};