2 * Copyright 2017 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
24 inline std::memory_order default_failure_memory_order(
25 std::memory_order successMode) {
26 switch (successMode) {
27 case std::memory_order_acq_rel:
28 return std::memory_order_acquire;
29 case std::memory_order_release:
30 return std::memory_order_relaxed;