15a83710eSEric Fiselier //===----------------------------------------------------------------------===// 25a83710eSEric Fiselier // 357b08b09SChandler Carruth // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 457b08b09SChandler Carruth // See https://llvm.org/LICENSE.txt for license information. 557b08b09SChandler Carruth // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 65a83710eSEric Fiselier // 75a83710eSEric Fiselier //===----------------------------------------------------------------------===// 85a83710eSEric Fiselier 95a83710eSEric Fiselier // <atomic> 105a83710eSEric Fiselier 115a83710eSEric Fiselier // struct atomic_flag 125a83710eSEric Fiselier 135a83710eSEric Fiselier // atomic_flag() = default; 145a83710eSEric Fiselier 155a83710eSEric Fiselier #include <atomic> 165a83710eSEric Fiselier #include <new> 175a83710eSEric Fiselier #include <cassert> 185a83710eSEric Fiselier 196ce45e08SEric Fiselier #include "test_macros.h" 206ce45e08SEric Fiselier main(int,char **)21*2df59c50SJF Bastienint main(int, char**) 225a83710eSEric Fiselier { 235a83710eSEric Fiselier std::atomic_flag f; 24b67e689fSEric Fiselier f.clear(); 25b67e689fSEric Fiselier assert(f.test_and_set() == 0); 265a83710eSEric Fiselier { 275a83710eSEric Fiselier typedef std::atomic_flag A; 286ce45e08SEric Fiselier TEST_ALIGNAS_TYPE(A) char storage[sizeof(A)] = {1}; 295a83710eSEric Fiselier A& zero = *new (storage) A(); 305a83710eSEric Fiselier assert(!zero.test_and_set()); 315a83710eSEric Fiselier zero.~A(); 325a83710eSEric Fiselier } 33*2df59c50SJF Bastien 34*2df59c50SJF Bastien return 0; 355a83710eSEric Fiselier } 36