bitfield: Make interface fully constexpr

Given C++17 is being used, the entire interface is capable of being
constexpr.
This commit is contained in:
Lioncash 2020-06-23 05:27:38 -04:00
parent 840a80670f
commit a27aa45e6a

View file

@ -21,97 +21,97 @@ struct BitField
return ((static_cast<BackingDataType>(~0)) >> (8 * sizeof(BackingDataType) - BitCount)) << BitIndex;
}
ALWAYS_INLINE operator DataType() const { return GetValue(); }
ALWAYS_INLINE constexpr operator DataType() const { return GetValue(); }
ALWAYS_INLINE BitField& operator=(DataType value)
ALWAYS_INLINE constexpr BitField& operator=(DataType value)
{
SetValue(value);
return *this;
}
ALWAYS_INLINE DataType operator++()
ALWAYS_INLINE constexpr DataType operator++()
{
DataType value = GetValue() + 1;
SetValue(value);
return GetValue();
}
ALWAYS_INLINE DataType operator++(int)
ALWAYS_INLINE constexpr DataType operator++(int)
{
DataType value = GetValue();
SetValue(value + 1);
return value;
}
ALWAYS_INLINE DataType operator--()
ALWAYS_INLINE constexpr DataType operator--()
{
DataType value = GetValue() - 1;
SetValue(value);
return GetValue();
}
ALWAYS_INLINE DataType operator--(int)
ALWAYS_INLINE constexpr DataType operator--(int)
{
DataType value = GetValue();
SetValue(value - 1);
return value;
}
ALWAYS_INLINE BitField& operator+=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator+=(DataType rhs)
{
SetValue(GetValue() + rhs);
return *this;
}
ALWAYS_INLINE BitField& operator-=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator-=(DataType rhs)
{
SetValue(GetValue() - rhs);
return *this;
}
ALWAYS_INLINE BitField& operator*=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator*=(DataType rhs)
{
SetValue(GetValue() * rhs);
return *this;
}
ALWAYS_INLINE BitField& operator/=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator/=(DataType rhs)
{
SetValue(GetValue() / rhs);
return *this;
}
ALWAYS_INLINE BitField& operator&=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator&=(DataType rhs)
{
SetValue(GetValue() & rhs);
return *this;
}
ALWAYS_INLINE BitField& operator|=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator|=(DataType rhs)
{
SetValue(GetValue() | rhs);
return *this;
}
ALWAYS_INLINE BitField& operator^=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator^=(DataType rhs)
{
SetValue(GetValue() ^ rhs);
return *this;
}
ALWAYS_INLINE BitField& operator<<=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator<<=(DataType rhs)
{
SetValue(GetValue() << rhs);
return *this;
}
ALWAYS_INLINE BitField& operator>>=(DataType rhs)
ALWAYS_INLINE constexpr BitField& operator>>=(DataType rhs)
{
SetValue(GetValue() >> rhs);
return *this;
}
ALWAYS_INLINE DataType GetValue() const
ALWAYS_INLINE constexpr DataType GetValue() const
{
if constexpr (std::is_same_v<DataType, bool>)
{
@ -128,7 +128,7 @@ struct BitField
}
}
ALWAYS_INLINE void SetValue(DataType value)
ALWAYS_INLINE constexpr void SetValue(DataType value)
{
data = (data & ~GetMask()) | ((static_cast<BackingDataType>(value) << BitIndex) & GetMask());
}