forked from OctaForge/libostd
more type traits cleanups
parent
1aeebb69a7
commit
49188f78ea
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@ -24,142 +24,150 @@ namespace detail {
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template<typename ...> struct CommonTypeBase;
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}
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template<typename> struct __OctaAddLr;
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template<typename> struct __OctaAddRr;
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template<typename> struct __OctaAddConst;
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template<typename> struct IsReference;
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template<typename> struct __OctaRemoveReference;
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template<typename> struct __OctaRemoveAllExtents;
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template<typename> struct IsTriviallyDefaultConstructible;
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template<typename> struct __OctaAddConst;
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template<typename> struct IsReference;
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template<typename> struct __OctaRemoveReference;
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template<typename> struct __OctaRemoveAllExtents;
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template<typename> struct IsTriviallyDefaultConstructible;
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template<typename _T>
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using RemoveCv = typename octa::detail::RemoveCv<_T>::Type;
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template<typename _T>
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using RemoveCv = typename octa::detail::RemoveCv<_T>::Type;
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template<typename _T>
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using AddLvalueReference = typename __OctaAddLr<_T>::Type;
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template<typename _T>
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using AddLvalueReference = typename octa::detail::AddLr<_T>::Type;
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template<typename _T>
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using AddRvalueReference = typename __OctaAddRr<_T>::Type;
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template<typename _T>
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using AddRvalueReference = typename octa::detail::AddRr<_T>::Type;
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template<typename _T>
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using AddConst = typename __OctaAddConst<_T>::Type;
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template<typename _T>
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using AddConst = typename __OctaAddConst<_T>::Type;
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template<typename _T>
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using RemoveReference = typename __OctaRemoveReference<_T>::Type;
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template<typename _T>
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using RemoveReference = typename __OctaRemoveReference<_T>::Type;
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template<typename _T>
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using RemoveAllExtents = typename __OctaRemoveAllExtents<_T>::Type;
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template<typename _T>
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using RemoveAllExtents = typename __OctaRemoveAllExtents<_T>::Type;
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namespace detail {
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template<typename _T> octa::AddRvalueReference<_T> declval_in();
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}
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/* integral constant */
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/* integral constant */
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template<typename _T, _T __val>
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struct IntegralConstant {
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static constexpr _T value = __val;
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template<typename _T, _T val>
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struct IntegralConstant {
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static constexpr _T value = val;
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typedef _T Value;
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typedef IntegralConstant<_T, __val> Type;
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typedef _T Value;
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typedef IntegralConstant<_T, val> Type;
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constexpr operator Value() const { return value; }
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constexpr Value operator()() const { return value; }
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};
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constexpr operator Value() const { return value; }
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constexpr Value operator()() const { return value; }
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};
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typedef IntegralConstant<bool, true> True;
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typedef IntegralConstant<bool, false> False;
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typedef IntegralConstant<bool, true> True;
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typedef IntegralConstant<bool, false> False;
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template<typename _T, _T val> constexpr _T IntegralConstant<_T, val>::value;
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template<typename _T, _T val> constexpr _T IntegralConstant<_T, val>::value;
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/* is void */
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/* is void */
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template<typename _T> struct __OctaIsVoid : False {};
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template< > struct __OctaIsVoid<void>: True {};
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namespace detail {
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template<typename _T> struct IsVoidBase : False {};
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template< > struct IsVoidBase<void>: True {};
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}
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template<typename _T>
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struct IsVoid: __OctaIsVoid<RemoveCv<_T>> {};
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struct IsVoid: octa::detail::IsVoidBase<RemoveCv<_T>> {};
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/* is null pointer */
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/* is null pointer */
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template<typename> struct __OctaIsNullPointer : False {};
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template< > struct __OctaIsNullPointer<nullptr_t>: True {};
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namespace detail {
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template<typename> struct IsNullPointerBase : False {};
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template< > struct IsNullPointerBase<nullptr_t>: True {};
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}
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template<typename _T> struct IsNullPointer:
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__OctaIsNullPointer<RemoveCv<_T>> {};
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template<typename _T> struct IsNullPointer:
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octa::detail::IsNullPointerBase<RemoveCv<_T>> {};
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/* is integer */
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/* is integer */
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template<typename _T> struct __OctaIsIntegral: False {};
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namespace detail {
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template<typename _T> struct IsIntegralBase: False {};
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template<> struct __OctaIsIntegral<bool >: True {};
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template<> struct __OctaIsIntegral<char >: True {};
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template<> struct __OctaIsIntegral<uchar >: True {};
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template<> struct __OctaIsIntegral<schar >: True {};
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template<> struct __OctaIsIntegral<short >: True {};
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template<> struct __OctaIsIntegral<ushort>: True {};
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template<> struct __OctaIsIntegral<int >: True {};
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template<> struct __OctaIsIntegral<uint >: True {};
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template<> struct __OctaIsIntegral<long >: True {};
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template<> struct __OctaIsIntegral<ulong >: True {};
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template<> struct __OctaIsIntegral<llong >: True {};
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template<> struct __OctaIsIntegral<ullong>: True {};
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template<> struct IsIntegralBase<bool >: True {};
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template<> struct IsIntegralBase<char >: True {};
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template<> struct IsIntegralBase<uchar >: True {};
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template<> struct IsIntegralBase<schar >: True {};
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template<> struct IsIntegralBase<short >: True {};
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template<> struct IsIntegralBase<ushort>: True {};
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template<> struct IsIntegralBase<int >: True {};
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template<> struct IsIntegralBase<uint >: True {};
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template<> struct IsIntegralBase<long >: True {};
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template<> struct IsIntegralBase<ulong >: True {};
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template<> struct IsIntegralBase<llong >: True {};
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template<> struct IsIntegralBase<ullong>: True {};
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template<> struct __OctaIsIntegral<char16_t>: True {};
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template<> struct __OctaIsIntegral<char32_t>: True {};
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template<> struct __OctaIsIntegral< wchar_t>: True {};
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template<> struct IsIntegralBase<char16_t>: True {};
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template<> struct IsIntegralBase<char32_t>: True {};
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template<> struct IsIntegralBase< wchar_t>: True {};
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}
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template<typename _T>
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struct IsIntegral: __OctaIsIntegral<RemoveCv<_T>> {};
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template<typename _T>
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struct IsIntegral: octa::detail::IsIntegralBase<RemoveCv<_T>> {};
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/* is floating point */
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/* is floating point */
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template<typename _T> struct __OctaIsFloatingPoint: False {};
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namespace detail {
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template<typename _T> struct IsFloatingPointBase: False {};
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template<> struct __OctaIsFloatingPoint<float >: True {};
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template<> struct __OctaIsFloatingPoint<double >: True {};
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template<> struct __OctaIsFloatingPoint<ldouble>: True {};
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template<> struct IsFloatingPointBase<float >: True {};
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template<> struct IsFloatingPointBase<double >: True {};
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template<> struct IsFloatingPointBase<ldouble>: True {};
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}
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template<typename _T>
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struct IsFloatingPoint: __OctaIsFloatingPoint<RemoveCv<_T>> {};
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template<typename _T>
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struct IsFloatingPoint: octa::detail::IsFloatingPointBase<RemoveCv<_T>> {};
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/* is array */
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/* is array */
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template<typename > struct IsArray : False {};
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template<typename _T > struct IsArray<_T[] >: True {};
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template<typename _T, size_t _N> struct IsArray<_T[_N]>: True {};
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template<typename > struct IsArray : False {};
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template<typename _T > struct IsArray<_T[] >: True {};
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template<typename _T, size_t _N> struct IsArray<_T[_N]>: True {};
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/* is pointer */
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/* is pointer */
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template<typename > struct __OctaIsPointer : False {};
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template<typename _T> struct __OctaIsPointer<_T *>: True {};
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namespace detail {
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template<typename > struct IsPointerBase : False {};
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template<typename _T> struct IsPointerBase<_T *>: True {};
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}
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template<typename _T>
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struct IsPointer: __OctaIsPointer<RemoveCv<_T>> {};
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template<typename _T>
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struct IsPointer: octa::detail::IsPointerBase<RemoveCv<_T>> {};
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/* is lvalue reference */
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/* is lvalue reference */
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template<typename > struct IsLvalueReference : False {};
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template<typename _T> struct IsLvalueReference<_T &>: True {};
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template<typename > struct IsLvalueReference : False {};
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template<typename _T> struct IsLvalueReference<_T &>: True {};
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/* is rvalue reference */
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/* is rvalue reference */
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template<typename > struct IsRvalueReference : False {};
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template<typename _T> struct IsRvalueReference<_T &&>: True {};
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template<typename > struct IsRvalueReference : False {};
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template<typename _T> struct IsRvalueReference<_T &&>: True {};
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/* is enum */
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/* is enum */
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template<typename _T> struct IsEnum: IntegralConstant<bool, __is_enum(_T)> {};
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template<typename _T> struct IsEnum: IntegralConstant<bool, __is_enum(_T)> {};
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/* is union */
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/* is union */
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template<typename _T> struct IsUnion: IntegralConstant<bool, __is_union(_T)> {};
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template<typename _T> struct IsUnion: IntegralConstant<bool, __is_union(_T)> {};
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/* is class */
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/* is class */
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template<typename _T> struct IsClass: IntegralConstant<bool, __is_class(_T)> {};
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template<typename _T> struct IsClass: IntegralConstant<bool, __is_class(_T)> {};
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/* is function */
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/* is function */
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namespace detail {
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struct FunctionTestDummy {};
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@ -185,149 +193,155 @@ namespace detail {
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template<typename _T> struct IsFunction: octa::detail::IsFunctionBase<_T> {};
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/* is arithmetic */
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/* is arithmetic */
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template<typename _T> struct IsArithmetic: IntegralConstant<bool,
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(IsIntegral<_T>::value || IsFloatingPoint<_T>::value)
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> {};
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template<typename _T> struct IsArithmetic: IntegralConstant<bool,
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(IsIntegral<_T>::value || IsFloatingPoint<_T>::value)
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> {};
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/* is fundamental */
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/* is fundamental */
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template<typename _T> struct IsFundamental: IntegralConstant<bool,
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(IsArithmetic<_T>::value || IsVoid<_T>::value || IsNullPointer<_T>::value)
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> {};
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template<typename _T> struct IsFundamental: IntegralConstant<bool,
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(IsArithmetic<_T>::value || IsVoid<_T>::value || IsNullPointer<_T>::value)
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> {};
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/* is compound */
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/* is compound */
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template<typename _T> struct IsCompound: IntegralConstant<bool,
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!IsFundamental<_T>::value
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> {};
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template<typename _T> struct IsCompound: IntegralConstant<bool,
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!IsFundamental<_T>::value
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> {};
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/* is pointer to member */
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/* is pointer to member */
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namespace detail {
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template<typename>
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struct __OctaIsMemberPointer: False {};
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struct IsMemberPointerBase: False {};
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template<typename _T, typename _U>
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struct __OctaIsMemberPointer<_T _U::*>: True {};
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struct IsMemberPointerBase<_T _U::*>: True {};
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}
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template<typename _T>
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struct IsMemberPointer: __OctaIsMemberPointer<RemoveCv<_T>> {};
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template<typename _T>
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struct IsMemberPointer: octa::detail::IsMemberPointerBase<RemoveCv<_T>> {};
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/* is pointer to member object */
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/* is pointer to member object */
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namespace detail {
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template<typename>
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struct __OctaIsMemberObjectPointer: False {};
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struct IsMemberObjectPointerBase: False {};
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template<typename _T, typename _U>
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struct __OctaIsMemberObjectPointer<_T _U::*>: IntegralConstant<bool,
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!IsFunction<_T>::value
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struct IsMemberObjectPointerBase<_T _U::*>: IntegralConstant<bool,
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!octa::IsFunction<_T>::value
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> {};
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}
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template<typename _T> struct IsMemberObjectPointer:
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__OctaIsMemberObjectPointer<RemoveCv<_T>> {};
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template<typename _T> struct IsMemberObjectPointer:
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octa::detail::IsMemberObjectPointerBase<RemoveCv<_T>> {};
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/* is pointer to member function */
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/* is pointer to member function */
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namespace detail {
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template<typename>
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struct __OctaIsMemberFunctionPointer: False {};
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struct IsMemberFunctionPointerBase: False {};
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template<typename _T, typename _U>
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struct __OctaIsMemberFunctionPointer<_T _U::*>: IntegralConstant<bool,
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IsFunction<_T>::value
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struct IsMemberFunctionPointerBase<_T _U::*>: IntegralConstant<bool,
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octa::IsFunction<_T>::value
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> {};
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}
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template<typename _T> struct IsMemberFunctionPointer:
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__OctaIsMemberFunctionPointer<RemoveCv<_T>> {};
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template<typename _T> struct IsMemberFunctionPointer:
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octa::detail::IsMemberFunctionPointerBase<RemoveCv<_T>> {};
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/* is reference */
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/* is reference */
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template<typename _T> struct IsReference: IntegralConstant<bool,
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(IsLvalueReference<_T>::value || IsRvalueReference<_T>::value)
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> {};
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template<typename _T> struct IsReference: IntegralConstant<bool,
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(IsLvalueReference<_T>::value || IsRvalueReference<_T>::value)
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> {};
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/* is object */
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/* is object */
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template<typename _T> struct IsObject: IntegralConstant<bool,
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(!IsFunction<_T>::value && !IsVoid<_T>::value && !IsReference<_T>::value)
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> {};
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template<typename _T> struct IsObject: IntegralConstant<bool,
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(!IsFunction<_T>::value && !IsVoid<_T>::value && !IsReference<_T>::value)
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> {};
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/* is scalar */
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/* is scalar */
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template<typename _T> struct IsScalar: IntegralConstant<bool,
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(IsMemberPointer<_T>::value || IsPointer<_T>::value || IsEnum<_T>::value
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|| IsNullPointer <_T>::value || IsArithmetic<_T>::value)
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> {};
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template<typename _T> struct IsScalar: IntegralConstant<bool,
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(IsMemberPointer<_T>::value || IsPointer<_T>::value || IsEnum<_T>::value
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|| IsNullPointer <_T>::value || IsArithmetic<_T>::value)
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> {};
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/* is abstract */
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/* is abstract */
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template<typename _T>
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struct IsAbstract: IntegralConstant<bool, __is_abstract(_T)> {};
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template<typename _T>
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struct IsAbstract: IntegralConstant<bool, __is_abstract(_T)> {};
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/* is const */
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/* is const */
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template<typename > struct IsConst : False {};
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template<typename _T> struct IsConst<const _T>: True {};
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template<typename > struct IsConst : False {};
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template<typename _T> struct IsConst<const _T>: True {};
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/* is volatile */
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/* is volatile */
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template<typename > struct IsVolatile : False {};
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template<typename _T> struct IsVolatile<volatile _T>: True {};
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template<typename > struct IsVolatile : False {};
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template<typename _T> struct IsVolatile<volatile _T>: True {};
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/* is empty */
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/* is empty */
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template<typename _T>
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struct IsEmpty: IntegralConstant<bool, __is_empty(_T)> {};
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template<typename _T>
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struct IsEmpty: IntegralConstant<bool, __is_empty(_T)> {};
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/* is POD */
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/* is POD */
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template<typename _T> struct IsPod: IntegralConstant<bool, __is_pod(_T)> {};
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template<typename _T> struct IsPod: IntegralConstant<bool, __is_pod(_T)> {};
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/* is polymorphic */
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/* is polymorphic */
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template<typename _T>
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struct IsPolymorphic: IntegralConstant<bool, __is_polymorphic(_T)> {};
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template<typename _T>
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struct IsPolymorphic: IntegralConstant<bool, __is_polymorphic(_T)> {};
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/* is signed */
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/* is signed */
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template<typename _T>
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struct IsSigned: IntegralConstant<bool, _T(-1) < _T(0)> {};
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template<typename _T>
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struct IsSigned: IntegralConstant<bool, _T(-1) < _T(0)> {};
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/* is unsigned */
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/* is unsigned */
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template<typename _T>
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struct IsUnsigned: IntegralConstant<bool, _T(0) < _T(-1)> {};
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template<typename _T>
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struct IsUnsigned: IntegralConstant<bool, _T(0) < _T(-1)> {};
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/* is standard layout */
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/* is standard layout */
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template<typename _T>
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struct IsStandardLayout: IntegralConstant<bool, __is_standard_layout(_T)> {};
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template<typename _T>
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struct IsStandardLayout: IntegralConstant<bool, __is_standard_layout(_T)> {};
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/* is literal type */
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/* is literal type */
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template<typename _T>
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struct IsLiteralType: IntegralConstant<bool, __is_literal_type(_T)> {};
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template<typename _T>
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struct IsLiteralType: IntegralConstant<bool, __is_literal_type(_T)> {};
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/* is trivially copyable */
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/* is trivially copyable */
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template<typename _T>
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struct IsTriviallyCopyable: IntegralConstant<bool,
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IsScalar<RemoveAllExtents<_T>>::value
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> {};
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template<typename _T>
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struct IsTriviallyCopyable: IntegralConstant<bool,
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IsScalar<RemoveAllExtents<_T>>::value
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> {};
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/* is trivial */
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/* is trivial */
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template<typename _T>
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struct IsTrivial: IntegralConstant<bool, __is_trivial(_T)> {};
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template<typename _T>
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struct IsTrivial: IntegralConstant<bool, __is_trivial(_T)> {};
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/* has virtual destructor */
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/* has virtual destructor */
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template<typename _T>
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struct HasVirtualDestructor: IntegralConstant<bool,
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__has_virtual_destructor(_T)
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> {};
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template<typename _T>
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struct HasVirtualDestructor: IntegralConstant<bool,
|
||||
__has_virtual_destructor(_T)
|
||||
> {};
|
||||
|
||||
/* is constructible */
|
||||
/* is constructible */
|
||||
|
||||
namespace detail {
|
||||
#define OCTA_MOVE(v) static_cast<octa::RemoveReference<decltype(v)> &&>(v)
|
||||
|
|
@ -416,23 +430,23 @@ namespace detail {
|
|||
template<typename _T, typename ..._A>
|
||||
struct IsConstructible: octa::detail::Ctible<_T, _A...> {};
|
||||
|
||||
/* is default constructible */
|
||||
/* is default constructible */
|
||||
|
||||
template<typename _T> struct IsDefaultConstructible: IsConstructible<_T> {};
|
||||
template<typename _T> struct IsDefaultConstructible: IsConstructible<_T> {};
|
||||
|
||||
/* is copy constructible */
|
||||
/* is copy constructible */
|
||||
|
||||
template<typename _T> struct IsCopyConstructible: IsConstructible<_T,
|
||||
AddLvalueReference<AddConst<_T>>
|
||||
> {};
|
||||
template<typename _T> struct IsCopyConstructible: IsConstructible<_T,
|
||||
AddLvalueReference<AddConst<_T>>
|
||||
> {};
|
||||
|
||||
/* is move constructible */
|
||||
/* is move constructible */
|
||||
|
||||
template<typename _T> struct IsMoveConstructible: IsConstructible<_T,
|
||||
AddRvalueReference<_T>
|
||||
> {};
|
||||
template<typename _T> struct IsMoveConstructible: IsConstructible<_T,
|
||||
AddRvalueReference<_T>
|
||||
> {};
|
||||
|
||||
/* is assignable */
|
||||
/* is assignable */
|
||||
|
||||
namespace detail {
|
||||
template<typename _T, typename _U> typename octa::detail::Select2nd<
|
||||
|
|
@ -454,19 +468,19 @@ namespace detail {
|
|||
template<typename _T, typename _U>
|
||||
struct IsAssignable: octa::detail::IsAssignableBase<_T, _U> {};
|
||||
|
||||
/* is copy assignable */
|
||||
/* is copy assignable */
|
||||
|
||||
template<typename _T> struct IsCopyAssignable: IsAssignable<
|
||||
AddLvalueReference<_T>,
|
||||
AddLvalueReference<AddConst<_T>>
|
||||
> {};
|
||||
template<typename _T> struct IsCopyAssignable: IsAssignable<
|
||||
AddLvalueReference<_T>,
|
||||
AddLvalueReference<AddConst<_T>>
|
||||
> {};
|
||||
|
||||
/* is move assignable */
|
||||
/* is move assignable */
|
||||
|
||||
template<typename _T> struct IsMoveAssignable: IsAssignable<
|
||||
AddLvalueReference<_T>,
|
||||
const AddRvalueReference<_T>
|
||||
> {};
|
||||
template<typename _T> struct IsMoveAssignable: IsAssignable<
|
||||
AddLvalueReference<_T>,
|
||||
const AddRvalueReference<_T>
|
||||
> {};
|
||||
|
||||
/* is destructible */
|
||||
|
||||
|
|
@ -753,39 +767,43 @@ namespace detail {
|
|||
|
||||
/* add lvalue reference */
|
||||
|
||||
template<typename _T> struct __OctaAddLr { typedef _T &Type; };
|
||||
template<typename _T> struct __OctaAddLr<_T &> { typedef _T &Type; };
|
||||
template<typename _T> struct __OctaAddLr<_T &&> { typedef _T &Type; };
|
||||
template<> struct __OctaAddLr<void> {
|
||||
namespace detail {
|
||||
template<typename _T> struct AddLr { typedef _T &Type; };
|
||||
template<typename _T> struct AddLr<_T &> { typedef _T &Type; };
|
||||
template<typename _T> struct AddLr<_T &&> { typedef _T &Type; };
|
||||
template<> struct AddLr<void> {
|
||||
typedef void Type;
|
||||
};
|
||||
template<> struct __OctaAddLr<const void> {
|
||||
template<> struct AddLr<const void> {
|
||||
typedef const void Type;
|
||||
};
|
||||
template<> struct __OctaAddLr<volatile void> {
|
||||
template<> struct AddLr<volatile void> {
|
||||
typedef volatile void Type;
|
||||
};
|
||||
template<> struct __OctaAddLr<const volatile void> {
|
||||
template<> struct AddLr<const volatile void> {
|
||||
typedef const volatile void Type;
|
||||
};
|
||||
}
|
||||
|
||||
/* add rvalue reference */
|
||||
|
||||
template<typename _T> struct __OctaAddRr { typedef _T &&Type; };
|
||||
template<typename _T> struct __OctaAddRr<_T &> { typedef _T &&Type; };
|
||||
template<typename _T> struct __OctaAddRr<_T &&> { typedef _T &&Type; };
|
||||
template<> struct __OctaAddRr<void> {
|
||||
namespace detail {
|
||||
template<typename _T> struct AddRr { typedef _T &&Type; };
|
||||
template<typename _T> struct AddRr<_T &> { typedef _T &&Type; };
|
||||
template<typename _T> struct AddRr<_T &&> { typedef _T &&Type; };
|
||||
template<> struct AddRr<void> {
|
||||
typedef void Type;
|
||||
};
|
||||
template<> struct __OctaAddRr<const void> {
|
||||
template<> struct AddRr<const void> {
|
||||
typedef const void Type;
|
||||
};
|
||||
template<> struct __OctaAddRr<volatile void> {
|
||||
template<> struct AddRr<volatile void> {
|
||||
typedef volatile void Type;
|
||||
};
|
||||
template<> struct __OctaAddRr<const volatile void> {
|
||||
template<> struct AddRr<const volatile void> {
|
||||
typedef const volatile void Type;
|
||||
};
|
||||
}
|
||||
|
||||
/* remove extent */
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue