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 26