//ww:run-exit 42
package main;
type bs = struct { rbuf: []u8, mark: i32 };
fn main() i32 = {
	let raw: [8]u8; raw[0] = 0u8; let rbuf: []u8 = raw[0:5]; let b: bs;
	b.mark = 7; b.rbuf = rbuf;
	if (b.rbuf.len != 5) { return 1; }; if (b.rbuf.cap != 8) { return 2; };
	if (b.mark != 7) { return 3; }; return 42;
};