rust/src/test/run-fail/alt-wildcards.rs

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// error-pattern:squirrelcupcake
fn cmp() -> int {
    match (option::Some('a'), option::None::<char>) {
        (option::Some(_), _) => { fail!(~"squirrelcupcake"); }
        (_, option::Some(_)) => { fail!(); }
        _                    => { fail!(~"wat"); }
    }
}

fn main() { log(error, cmp()); }