// 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.

fn force<F>(f: F) where F: FnOnce() { f(); }
fn main() {
    let x: isize;
    force(|| {  //~ ERROR capture of possibly uninitialized variable: `x`
        println!("{}", x);
    });
}
