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 // UNSUPPORTED: libcpp-has-no-threads
10 
11 // <atomic>
12 
13 // void atomic_thread_fence(memory_order m);
14 
15 #include <atomic>
16 
17 int main(int, char**)
18 {
19     std::atomic_thread_fence(std::memory_order_seq_cst);
20 
21   return 0;
22 }
23