// 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.

#[crate_type="lib"];

condition! {
    pub oops: int -> int;
}

pub fn guard(k: extern fn() -> int, x: int) -> int {
    do oops::cond.trap(|i| i*x).inside {
        k()
    }
}