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#ifndef OPAQUE_UTILITY_HPP
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#define OPAQUE_UTILITY_HPP
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//
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// Copyright (c) 2016
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// Kyle Markley. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// 3. Neither the name of the author nor the names of any contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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#include <type_traits>
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#include <utility>
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namespace opaque {
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/// \addtogroup internal
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/// @{
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#if __cplusplus >= 201402L
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using std::forward;
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using std::move;
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#else
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template <typename T>
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constexpr T&& forward(typename std::remove_reference<T>::type& t) noexcept {
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return static_cast<T&&>(t);
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}
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template <typename T>
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constexpr T&& forward(typename std::remove_reference<T>::type&& t) noexcept {
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static_assert(not std::is_lvalue_reference<T>::value, "lvalue reference");
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return static_cast<T&&>(t);
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}
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template <typename T>
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constexpr typename std::remove_reference<T>::type&& move(T&& t) noexcept {
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return static_cast<typename std::remove_reference<T>::type&&>(t);
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}
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#endif
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/// @}
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}
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#endif
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