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BAN: Implement is_unsigned* traits and (un)?signed_integral concepts

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Bananymous 2024-01-25 14:16:41 +02:00
parent 210b24b6e3
commit 0408aa9bbc
1 changed files with 8 additions and 0 deletions
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8
BAN/include/BAN/Traits.h
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@ -94,9 +94,17 @@ namespace BAN
{ {
template<typename T, bool = is_arithmetic_v<T>> struct is_signed { static constexpr bool value = T(-1) < T(0); }; template<typename T, bool = is_arithmetic_v<T>> struct is_signed { static constexpr bool value = T(-1) < T(0); };
template<typename T> struct is_signed<T, false> : false_type {}; template<typename T> struct is_signed<T, false> : false_type {};
template<typename T, bool = is_arithmetic_v<T>> struct is_unsigned { static constexpr bool value = T(0) < T(-1); };
template<typename T> struct is_unsigned<T, false> : false_type {};
} }
template<typename T> struct is_signed : detail::is_signed<T> {}; template<typename T> struct is_signed : detail::is_signed<T> {};
template<typename T> inline constexpr bool is_signed_v = is_signed<T>::value; template<typename T> inline constexpr bool is_signed_v = is_signed<T>::value;
template<typename T> concept signed_integral = is_signed_v<T> && is_integral_v<T>;
template<typename T> struct is_unsigned : detail::is_unsigned<T> {};
template<typename T> inline constexpr bool is_unsigned_v = is_unsigned<T>::value;
template<typename T> concept unsigned_integral = is_unsigned_v<T> && is_integral_v<T>;
template<typename T> struct less { constexpr bool operator()(const T& lhs, const T& rhs) const { return lhs < rhs; } }; template<typename T> struct less { constexpr bool operator()(const T& lhs, const T& rhs) const { return lhs < rhs; } };
template<typename T> struct equal { constexpr bool operator()(const T& lhs, const T& rhs) const { return lhs == rhs; } }; template<typename T> struct equal { constexpr bool operator()(const T& lhs, const T& rhs) const { return lhs == rhs; } };