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Replace Common::BitCast with std::bit_cast

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Pokechu22
2022-08-05 21:10:17 -07:00
parent 57c890d4fc
commit fbbfea8e8e
36 changed files with 177 additions and 215 deletions
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33
Source/Core/Common/BitUtils.h
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@ -125,39 +125,6 @@ constexpr bool IsValidLowMask(const T mask) noexcept
return (mask & (mask + 1)) == 0;
}
///
/// Reinterpret objects of one type as another by bit-casting between object representations.
///
/// @remark This is the example implementation of std::bit_cast which is to be included
/// in C++2a. See http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0476r2.html
/// for more details. The only difference is this variant is not constexpr,
/// as the mechanism for bit_cast requires a compiler built-in to have that quality.
///
/// @param source The source object to convert to another representation.
///
/// @tparam To The type to reinterpret source as.
/// @tparam From The initial type representation of source.
///
/// @return The representation of type From as type To.
///
/// @pre Both To and From types must be the same size
/// @pre Both To and From types must satisfy the TriviallyCopyable concept.
///
template <typename To, typename From>
inline To BitCast(const From& source) noexcept
{
static_assert(sizeof(From) == sizeof(To),
"BitCast source and destination types must be equal in size.");
static_assert(std::is_trivially_copyable<From>(),
"BitCast source type must be trivially copyable.");
static_assert(std::is_trivially_copyable<To>(),
"BitCast destination type must be trivially copyable.");
alignas(To) std::byte storage[sizeof(To)];
std::memcpy(&storage, &source, sizeof(storage));
return reinterpret_cast<To&>(storage);
}
template <typename T, typename PtrType>
class BitCastPtrType
{