ecency-mobile/ios/Pods/Folly/folly/ContainerTraits.h

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/*
* Copyright 2016 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <folly/Traits.h>
namespace folly {
FOLLY_CREATE_HAS_MEMBER_FN_TRAITS(container_emplace_back_traits, emplace_back);
template <class Container, typename... Args>
inline
typename std::enable_if<
container_emplace_back_traits<Container, void(Args...)>::value>::type
container_emplace_back_or_push_back(Container& container, Args&&... args) {
container.emplace_back(std::forward<Args>(args)...);
}
template <class Container, typename... Args>
inline
typename std::enable_if<
!container_emplace_back_traits<Container, void(Args...)>::value>::type
container_emplace_back_or_push_back(Container& container, Args&&... args) {
using v = typename Container::value_type;
container.push_back(v(std::forward<Args>(args)...));
}
}