module main

const buf_len = 256

__global not_used_in_code_but_helps_triggering = u64(-1)

struct Buffer {
mut:
	data [256]u8
	pos  int
}

fn (mut buf Buffer) clear() {
	buf.pos = 0
	for i in 0 .. buf_len {
		buf.data[i] = 0
	}
}