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replace some traits with c++14 style nice definitions

master
Daniel Kolesa 2016-01-13 20:46:16 +00:00
parent 41174195bb
commit 1c5ba28f35
1 changed files with 9 additions and 29 deletions
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38
ostd/type_traits.hh
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@ -110,13 +110,8 @@ struct Not: IntegralConstant<bool, !T::Type::value> {};
/* type equality */
namespace detail {
template<typename, typename> struct IsSameBase : False {};
template<typename T > struct IsSameBase<T, T>: True {};
}
template<typename T, typename U>
constexpr bool IsSame = detail::IsSameBase<T, U>::value;
template<typename, typename> constexpr bool IsSame = false;
template<typename T > constexpr bool IsSame<T, T> = true;
/* is void */
@ -171,14 +166,9 @@ constexpr bool IsFloatingPoint = detail::IsFloatingPointBase<RemoveCv<T>>::value
/* is array */
namespace detail {
template<typename > struct IsArrayBase : False {};
template<typename T > struct IsArrayBase<T[] >: True {};
template<typename T, Size N> struct IsArrayBase<T[N]>: True {};
}
template<typename T>
constexpr bool IsArray = detail::IsArrayBase<T>::value;
template<typename > constexpr bool IsArray = false;
template<typename T > constexpr bool IsArray<T[]> = true;
template<typename T, Size N> constexpr bool IsArray<T[N]> = true;
/* is pointer */
@ -192,23 +182,13 @@ constexpr bool IsPointer = detail::IsPointerBase<RemoveCv<T>>::value;
/* is lvalue reference */
namespace detail {
template<typename > struct IsLvalueReferenceBase : False {};
template<typename T> struct IsLvalueReferenceBase<T &>: True {};
}
template<typename T>
constexpr bool IsLvalueReference = detail::IsLvalueReferenceBase<T>::value;
template<typename > constexpr bool IsLvalueReference = false;
template<typename T> constexpr bool IsLvalueReference<T &> = true;
/* is rvalue reference */
namespace detail {
template<typename > struct IsRvalueReferenceBase : False {};
template<typename T> struct IsRvalueReferenceBase<T &&>: True {};
}
template<typename T>
constexpr bool IsRvalueReference = detail::IsRvalueReferenceBase<T>::value;
template<typename > constexpr bool IsRvalueReference = false;
template<typename T> constexpr bool IsRvalueReference<T &&> = true;
/* is reference */