common/bit_cast: Add function matching std::bit_cast without constexpr
Add a std::bit_cast-like function archiving the same runtime results as the standard function, without compile time support. This allows us to use bit_cast while we wait for compiler support, it can be trivially replaced in the future.
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2 changed files with 23 additions and 0 deletions
src/common
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@ -102,6 +102,7 @@ add_library(common STATIC
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atomic_ops.h
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detached_tasks.cpp
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detached_tasks.h
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bit_cast.h
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bit_field.h
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bit_util.h
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cityhash.cpp
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22
src/common/bit_cast.h
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22
src/common/bit_cast.h
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@ -0,0 +1,22 @@
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// Copyright 2020 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <cstring>
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#include <type_traits>
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namespace Common {
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template <typename To, typename From>
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[[nodiscard]] std::enable_if_t<sizeof(To) == sizeof(From) && std::is_trivially_copyable_v<From> &&
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std::is_trivially_copyable_v<To>,
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To>
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BitCast(const From& src) noexcept {
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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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} // namespace Common
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