rust/src/test/compile-fail/once-fn-subtyping.rs
2013-05-03 20:01:42 -04:00

17 lines
620 B
Rust

// 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 main() {
let f: &once fn() = ||();
let g: &fn() = f; //~ ERROR mismatched types
let h: &fn() = ||();
let i: &once fn() = h; // ok
}