unit okslreb;

fn first(s: []u8) -> u8 { return s[0]; }

fn test() -> u8 {
    var a: [2]u8 = [1 as u8, 2 as u8];
    var s = a[..];
    let v = first(s);
    s[0] = 9 as u8;
    return v;
}