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Merge pull request #4629 from FearlessTobi/bunnei-fooled-me

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Port minor changes for BitField from yuzu
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Weiyi Wang 2019-02-25 10:22:44 -05:00 committed by GitHub
commit fdb5a8c2df
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1 changed files with 5 additions and 8 deletions
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13
src/common/bit_field.h
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@ -125,7 +125,7 @@ private:
using StorageTypeWithEndian = typename AddEndian<StorageType, EndianTag>::type; using StorageTypeWithEndian = typename AddEndian<StorageType, EndianTag>::type;
public: public:
BitField& operator=(const BitField&) = default; constexpr BitField& operator=(const BitField&) = default;
/// Constants to allow limited introspection of fields if needed /// Constants to allow limited introspection of fields if needed
static constexpr std::size_t position = Position; static constexpr std::size_t position = Position;
@ -166,15 +166,15 @@ public:
// so that we can use this within unions // so that we can use this within unions
constexpr BitField() = default; constexpr BitField() = default;
FORCE_INLINE operator T() const { constexpr operator T() const {
return Value(); return Value();
} }
FORCE_INLINE void Assign(const T& value) { constexpr void Assign(const T& value) {
storage = (static_cast<StorageType>(storage) & ~mask) | FormatValue(value); storage = (static_cast<StorageType>(storage) & ~mask) | FormatValue(value);
} }
FORCE_INLINE T Value() const { constexpr T Value() const {
return ExtractValue(storage); return ExtractValue(storage);
} }
@ -191,12 +191,9 @@ private:
static_assert(position < 8 * sizeof(T), "Invalid position"); static_assert(position < 8 * sizeof(T), "Invalid position");
static_assert(bits <= 8 * sizeof(T), "Invalid number of bits"); static_assert(bits <= 8 * sizeof(T), "Invalid number of bits");
static_assert(bits > 0, "Invalid number of bits"); static_assert(bits > 0, "Invalid number of bits");
static_assert(std::is_pod<T>::value, "Invalid base type"); static_assert(std::is_trivially_copyable_v<T>, "T must be trivially copyable in a BitField");
}; };
#pragma pack() #pragma pack()
static_assert(std::is_trivially_copyable<BitField<0, 1, unsigned>>::value,
"BitField must be trivially copyable");
template <std::size_t Position, std::size_t Bits, typename T> template <std::size_t Position, std::size_t Bits, typename T>
using BitFieldBE = BitField<Position, Bits, T, BETag>; using BitFieldBE = BitField<Position, Bits, T, BETag>;