| // Copyright 2016 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. |
| |
| #![allow(unused)] |
| #![deny(improper_ctypes)] |
| |
| #[repr(C)] |
| union U { |
| a: u8, |
| } |
| |
| union W { |
| a: u8, |
| } |
| |
| extern "C" { |
| static FOREIGN1: U; // OK |
| static FOREIGN2: W; //~ ERROR union has unspecified layout |
| } |
| |
| fn main() {} |