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 #ifndef _LIBCPP___ATOMIC_FENCE_H
10 #define _LIBCPP___ATOMIC_FENCE_H
11 
12 #include <__atomic/cxx_atomic_impl.h>
13 #include <__atomic/memory_order.h>
14 #include <__config>
15 
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 #  pragma GCC system_header
18 #endif
19 
20 _LIBCPP_BEGIN_NAMESPACE_STD
21 
22 inline _LIBCPP_HIDE_FROM_ABI
23 void
24 atomic_thread_fence(memory_order __m) _NOEXCEPT
25 {
26     __cxx_atomic_thread_fence(__m);
27 }
28 
29 inline _LIBCPP_HIDE_FROM_ABI
30 void
31 atomic_signal_fence(memory_order __m) _NOEXCEPT
32 {
33     __cxx_atomic_signal_fence(__m);
34 }
35 
36 _LIBCPP_END_NAMESPACE_STD
37 
38 #endif // _LIBCPP___ATOMIC_FENCE_H
39