contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear.c

   1 //===-- atomic_flag_clear.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 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
  21 void atomic_flag_clear(volatile atomic_flag *object) {
  22   __c11_atomic_store(&(object)->_Value, 0, __ATOMIC_SEQ_CST);
  23 }
  24
  25 #endif