37 lines
1.2 KiB
C
37 lines
1.2 KiB
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_VOID_T_H_
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#define RTC_BASE_CONTAINERS_VOID_T_H_
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namespace webrtc {
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namespace void_t_internal {
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// Implementation detail of webrtc::void_t below.
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template <typename...>
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struct make_void {
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using type = void;
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};
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} // namespace void_t_internal
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// webrtc::void_t is an implementation of std::void_t from C++17.
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//
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// We use |webrtc::void_t_internal::make_void| as a helper struct to avoid a
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// C++14 defect:
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// http://en.cppreference.com/w/cpp/types/void_t
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// http://open-std.org/JTC1/SC22/WG21/docs/cwg_defects.html#1558
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template <typename... Ts>
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using void_t = typename ::webrtc::void_t_internal::make_void<Ts...>::type;
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} // namespace webrtc
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#endif // RTC_BASE_CONTAINERS_VOID_T_H_
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