5466d13d43
If you define lang items in your crate, add `#[feature(lang_items)]`. If you define intrinsics (`extern "rust-intrinsic"`), add `#[feature(intrinsics)]`. Closes #12858. [breaking-change]
25 lines
733 B
Rust
25 lines
733 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.
|
|
|
|
#![feature(intrinsics)]
|
|
|
|
pub mod rusti {
|
|
extern "rust-intrinsic" {
|
|
pub fn atomic_xchg<T>(dst: *mut T, src: T) -> T;
|
|
}
|
|
}
|
|
|
|
#[inline(always)]
|
|
pub fn atomic_xchg(dst: *mut int, src: int) -> int {
|
|
unsafe {
|
|
rusti::atomic_xchg(dst, src)
|
|
}
|
|
}
|