| // Copyright 2014 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. |
| |
| // tests that input to a macro is checked for use of gated features. If this |
| // test succeeds due to the acceptance of a feature, pick a new feature to |
| // test. Not ideal, but oh well :( |
| |
| fn main() { |
| let a = &[1, 2, 3]; |
| println!("{}", { |
| extern "rust-intrinsic" { //~ ERROR intrinsics are subject to change |
| fn atomic_fence(); |
| } |
| atomic_fence(); |
| 42 |
| }); |
| } |
