1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // XFAIL: c++03
10 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
11 
12 // <atomic>
13 
14 // struct atomic_flag
15 
16 // atomic_flag() = ATOMIC_FLAG_INIT;
17 
18 #include <atomic>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 
23 int main(int, char**)
24 {
25     std::atomic_flag f = ATOMIC_FLAG_INIT;
26     assert(f.test_and_set() == 0);
27 
28   return 0;
29 }
30