module io

const (
	buf_max_len = 1024
)

pub fn cp(dst Writer, src Reader) ? {
	mut buf := []byte{len: buf_max_len}
	for {
		len := src.read(mut buf) or { break }
		dst.write(buf[..len]) or {
			return err
		}
	}
	unsafe {
		buf.free()
	}
}