mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 23:04:33 +00:00
32 lines
737 B
Rust
32 lines
737 B
Rust
|
// 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.
|
||
|
|
|
||
|
|
// Some traits can be derived for unions.
|
||
|
|
|
||
|
|
#![feature(untagged_unions)]
|
||
|
|
|
||
|
|
#[derive(
|
||
|
|
Copy,
|
||
|
|
)]
|
||
|
|
union U {
|
||
|
|
a: u8,
|
||
|
|
b: u16,
|
||
|
|
}
|
||
|
|
|
||
|
|
impl Clone for U {
|
||
|
|
fn clone(&self) -> Self { *self }
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let u = U { b: 0 };
|
||
|
|
let u1 = u;
|
||
|
|
let u2 = u.clone();
|
||
|
|
}
|