Vulkan-Hpp/snippets/Flags.hpp

185 lines
5.1 KiB
C++

template <typename FlagBitsType>
struct FlagTraits
{};
template <typename BitType>
class Flags
{
public:
using MaskType = typename std::underlying_type<BitType>::type;
// constructors
VULKAN_HPP_CONSTEXPR Flags() VULKAN_HPP_NOEXCEPT
: m_mask( 0 )
{}
VULKAN_HPP_CONSTEXPR Flags( BitType bit ) VULKAN_HPP_NOEXCEPT
: m_mask( static_cast<MaskType>( bit ) )
{}
VULKAN_HPP_CONSTEXPR Flags( Flags<BitType> const & rhs ) VULKAN_HPP_NOEXCEPT = default;
VULKAN_HPP_CONSTEXPR explicit Flags( MaskType flags ) VULKAN_HPP_NOEXCEPT
: m_mask( flags )
{}
// relational operators
#if defined( VULKAN_HPP_HAS_SPACESHIP_OPERATOR )
auto operator<=>( Flags<BitType> const & ) const = default;
#else
VULKAN_HPP_CONSTEXPR bool operator<( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return m_mask < rhs.m_mask;
}
VULKAN_HPP_CONSTEXPR bool operator<=( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return m_mask <= rhs.m_mask;
}
VULKAN_HPP_CONSTEXPR bool operator>( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return m_mask > rhs.m_mask;
}
VULKAN_HPP_CONSTEXPR bool operator>=( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return m_mask >= rhs.m_mask;
}
VULKAN_HPP_CONSTEXPR bool operator==( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return m_mask == rhs.m_mask;
}
VULKAN_HPP_CONSTEXPR bool operator!=( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return m_mask != rhs.m_mask;
}
#endif
// logical operator
VULKAN_HPP_CONSTEXPR bool operator!() const VULKAN_HPP_NOEXCEPT
{
return !m_mask;
}
// bitwise operators
VULKAN_HPP_CONSTEXPR Flags<BitType> operator&( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return Flags<BitType>( m_mask & rhs.m_mask );
}
VULKAN_HPP_CONSTEXPR Flags<BitType> operator|( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return Flags<BitType>( m_mask | rhs.m_mask );
}
VULKAN_HPP_CONSTEXPR Flags<BitType> operator^( Flags<BitType> const & rhs ) const VULKAN_HPP_NOEXCEPT
{
return Flags<BitType>( m_mask ^ rhs.m_mask );
}
VULKAN_HPP_CONSTEXPR Flags<BitType> operator~() const VULKAN_HPP_NOEXCEPT
{
return Flags<BitType>( m_mask ^ FlagTraits<BitType>::allFlags );
}
// assignment operators
VULKAN_HPP_CONSTEXPR_14 Flags<BitType> & operator=( Flags<BitType> const & rhs ) VULKAN_HPP_NOEXCEPT = default;
VULKAN_HPP_CONSTEXPR_14 Flags<BitType> & operator|=( Flags<BitType> const & rhs ) VULKAN_HPP_NOEXCEPT
{
m_mask |= rhs.m_mask;
return *this;
}
VULKAN_HPP_CONSTEXPR_14 Flags<BitType> & operator&=( Flags<BitType> const & rhs ) VULKAN_HPP_NOEXCEPT
{
m_mask &= rhs.m_mask;
return *this;
}
VULKAN_HPP_CONSTEXPR_14 Flags<BitType> & operator^=( Flags<BitType> const & rhs ) VULKAN_HPP_NOEXCEPT
{
m_mask ^= rhs.m_mask;
return *this;
}
// cast operators
explicit VULKAN_HPP_CONSTEXPR operator bool() const VULKAN_HPP_NOEXCEPT
{
return !!m_mask;
}
explicit VULKAN_HPP_CONSTEXPR operator MaskType() const VULKAN_HPP_NOEXCEPT
{
return m_mask;
}
#if defined( VULKAN_HPP_FLAGS_MASK_TYPE_AS_PUBLIC )
public:
#else
private:
#endif
MaskType m_mask;
};
#if !defined( VULKAN_HPP_HAS_SPACESHIP_OPERATOR )
// relational operators only needed for pre C++20
template <typename BitType>
VULKAN_HPP_CONSTEXPR bool operator<( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator>( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR bool operator<=( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator>=( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR bool operator>( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator<( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR bool operator>=( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator<=( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR bool operator==( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator==( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR bool operator!=( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator!=( bit );
}
#endif
// bitwise operators
template <typename BitType>
VULKAN_HPP_CONSTEXPR Flags<BitType> operator&( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator&( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR Flags<BitType> operator|( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator|( bit );
}
template <typename BitType>
VULKAN_HPP_CONSTEXPR Flags<BitType> operator^( BitType bit, Flags<BitType> const & flags ) VULKAN_HPP_NOEXCEPT
{
return flags.operator^( bit );
}