33 lines
917 B
C
33 lines
917 B
C
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/*
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* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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// This implementation is borrowed from Chromium.
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#ifndef RTC_BASE_CONTAINERS_AS_CONST_H_
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#define RTC_BASE_CONTAINERS_AS_CONST_H_
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#include <type_traits>
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namespace webrtc {
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// C++14 implementation of C++17's std::as_const():
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// https://en.cppreference.com/w/cpp/utility/as_const
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template <typename T>
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constexpr std::add_const_t<T>& as_const(T& t) noexcept {
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return t;
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}
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template <typename T>
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void as_const(const T&& t) = delete;
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} // namespace webrtc
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#endif // RTC_BASE_CONTAINERS_AS_CONST_H_
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