libcxx/include/__atomic/check_memory_order.h

   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_CHECK_MEMORY_ORDER_H
  10 #define _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H
  11
  12 #include <__config>
  13
  14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  15 #  pragma GCC system_header
  16 #endif
  17
  18 #define _LIBCPP_CHECK_STORE_MEMORY_ORDER(__m) \
  19   _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_consume || \
  20                            __m == memory_order_acquire || \
  21                            __m == memory_order_acq_rel,   \
  22                         "memory order argument to atomic operation is invalid")
  23
  24 #define _LIBCPP_CHECK_LOAD_MEMORY_ORDER(__m) \
  25   _LIBCPP_DIAGNOSE_WARNING(__m == memory_order_release || \
  26                            __m == memory_order_acq_rel,   \
  27                         "memory order argument to atomic operation is invalid")
  28
  29 #define _LIBCPP_CHECK_EXCHANGE_MEMORY_ORDER(__m, __f) \
  30   _LIBCPP_DIAGNOSE_WARNING(__f == memory_order_release || \
  31                            __f == memory_order_acq_rel,   \
  32                         "memory order argument to atomic operation is invalid")
  33
  34 #endif // _LIBCPP___ATOMIC_CHECK_MEMORY_ORDER_H