v1/__atomic/check_memory_order.h

0001 //===----------------------------------------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H
0010 #define _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H
0011
0012 #include <__config>
0013
0014 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0015 #  pragma GCC system_header
0016 #endif
0017
0018 #define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m)                                                                          \
0019   _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_consume || __m == memory_order_acquire || __m == memory_order_acq_rel,  \
0020                            "memory order argument to atomic operation is invalid")
0021
0022 #define _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m)                                                                           \
0023   _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || __m == memory_order_acq_rel,                                 \
0024                            "memory order argument to atomic operation is invalid")
0025
0026 #define _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__m, __f)                                                                  \
0027   _LIBCPP_DIAGNOSE_WARNING(__f == memory_order_release || __f == memory_order_acq_rel,                                 \
0028                            "memory order argument to atomic operation is invalid")
0029
0030 #define _LIBCPP_CHECK_WAIT_MEMORY_ORDER(__m)                                                                           \
0031   _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || __m == memory_order_acq_rel,                                 \
0032                            "memory order argument to atomic operation is invalid")
0033
0034 #endif // _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H