match.rs

fn main() {
    let bar = result_err();

    match bar {
        Ok(foo) => io::println(fmt!("Success: %?", foo)),
        Err(foo) => fail foo.to_str()
    }
}

fn result_ok() -> Result<int, int> {
    Ok(0)
}

fn result_err() -> Result<int, int> {
    Err(1)
}