fn main() {
    // error handling with tuples
    let (a, err) = another(5);
    println!("another returned {} and said \"{}\"", a, err);

    // error handling with Rust's error handling
    let b = something(150);
    match b {
        Ok(ans) => { println!("something returned {}", ans); }
        Err(badans) => { println!("something said \"{}\"", badans); }
    }
}

fn another<'r>(x: int) -> (int, &'r str) { // &'static is required for returning string literals
    (x * 2i, "something happened!") //implict return. DO NOT add a semicolon here.
}

fn something<'r>(x :int) -> Result<int, &'r str> {
    if x > 99 {
        return Err("das a big numba bro");
    }
    Ok(x * 2)
}