enum.h File Reference

#include <compare>
#include <type_traits>

Include dependency graph for enum.h:

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Classes
struct	fe::is_bit_enum< T >

Namespaces
namespace	fe

Concepts
concept	fe::BitEnum

Functions
Bit operations for enum classs
Provides all kind of bit and comparison operators for an enum class E. Note that the bit operators return E's underlying type and not the original enum E. This is because the result may not be a valid enum value. For the same reason, it doesn't make sense to declare operators such as &=. Use like this: using fe::operator&; using fe::operator|; using fe::operator^; using fe::operator<=>; using fe::operator==; using fe::operator!=; enum class MyEnum : unsigned { A = 1 << 0, B = 1 << 1, C = 1 << 2, }; template<> struct fe::is_bit_enum<MyEnum> : std::true_type { };
template<BitEnum E>
constexpr auto	fe::operator& (E x, E y)
template<BitEnum E>
constexpr auto	fe::operator& (std::underlying_type_t< E > x, E y)
template<BitEnum E>
constexpr auto	fe::operator& (E x, std::underlying_type_t< E > y)
template<BitEnum E>
constexpr auto	fe::operator| (E x, E y)
template<BitEnum E>
constexpr auto	fe::operator| (std::underlying_type_t< E > x, E y)
template<BitEnum E>
constexpr auto	fe::operator| (E x, std::underlying_type_t< E > y)
template<BitEnum E>
constexpr auto	fe::operator^ (E x, E y)
template<BitEnum E>
constexpr auto	fe::operator^ (std::underlying_type_t< E > x, E y)
template<BitEnum E>
constexpr auto	fe::operator^ (E x, std::underlying_type_t< E > y)
template<BitEnum E>
constexpr std::strong_ordering	fe::operator<=> (std::underlying_type_t< E > x, E y)
template<BitEnum E>
constexpr std::strong_ordering	fe::operator<=> (E x, std::underlying_type_t< E > y)
template<BitEnum E>
constexpr bool	fe::operator== (std::underlying_type_t< E > x, E y)
template<BitEnum E>
constexpr bool	fe::operator!= (std::underlying_type_t< E > x, E y)
template<BitEnum E>
constexpr bool	fe::operator== (E x, std::underlying_type_t< E > y)
template<BitEnum E>
constexpr bool	fe::operator!= (E x, std::underlying_type_t< E > y)

Variables
is_enum
template<class T >
constexpr bool	fe::is_bit_enum_v = is_bit_enum<T>::value