xref: /freebsd/contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear_explicit.c (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1 //===-- atomic_flag_clear_explicit.c --------------------------------------===//
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 // This file implements atomic_flag_clear_explicit from C11's stdatomic.h.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef __has_include
14 #define __has_include(inc) 0
15 #endif
16 
17 #if __has_include(<stdatomic.h>)
18 
19 #include <stdatomic.h>
20 #undef atomic_flag_clear_explicit
21 void atomic_flag_clear_explicit(volatile atomic_flag *object,
22                                 memory_order order) {
23   __c11_atomic_store(&(object)->_Value, 0, order);
24 }
25 
26 #endif
27