// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // xfail-fast - check-fast doesn't understand aux-build // aux-build:cci_intrinsic.rs extern mod cci_intrinsic; use cci_intrinsic::atomic_xchg; fn main() { unsafe { let mut x = 1; atomic_xchg(&mut x, 5); assert x == 5; } }