//ww:run-exit 42
package main;
type bs = struct { rbuf: []u8, mark: i32 };
fn main() i32 = {
	let raw: [16]u8;
	raw[0] = 0xAAu8; raw[1] = 0xBBu8; raw[2] = 0xCCu8;
	raw[3] = 0xDDu8; raw[4] = 0xEEu8; raw[5] = 0xFFu8;
	let b: bs; b.mark = 0x33; b.rbuf = raw[0:6];
	if (b.rbuf.len != 6) { return 1; }; if (b.rbuf.cap != 16) { return 2; };
	if (b.mark != 0x33) { return 3; }; if (b.rbuf[0] != 0xAAu8) { return 4; };
	if (b.rbuf[5] != 0xFFu8) { return 5; }; return 42;
};