mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-07-06 07:17:25 +00:00
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_std_bit_cast_h
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#define vtk_m_std_bit_cast_h
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#include <cstring>
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#include <type_traits>
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namespace vtkmstd
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{
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// Copy/Paste from cppreference.com
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template <class To, class From>
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typename std::enable_if<sizeof(To) == sizeof(From) && std::is_trivially_copyable<From>::value &&
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std::is_trivially_copyable<To>::value,
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To>::type
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// constexpr support needs compiler magic
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bit_cast(const From& src) noexcept
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{
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static_assert(
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std::is_trivially_constructible<To>::value,
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"This implementation additionally requires destination type to be trivially constructible");
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To dst;
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std::memcpy(&dst, &src, sizeof(To));
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return dst;
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}
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}
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#endif //vtk_m_std_bit_cast_h
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