| // -*- C++ -*- |
| //===------------------------ type_traits ---------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_TYPE_TRAITS |
| #define _LIBCPP_TYPE_TRAITS |
| |
| /* |
| type_traits synopsis |
| |
| namespace std |
| { |
| |
| // helper class: |
| template <class T, T v> struct integral_constant; |
| typedef integral_constant<bool, true> true_type; |
| typedef integral_constant<bool, false> false_type; |
| |
| // helper traits |
| template <bool, class T = void> struct enable_if; |
| template <bool, class T, class F> struct conditional; |
| |
| // Primary classification traits: |
| template <class T> struct is_void; |
| template <class T> struct is_null_pointer; // C++14 |
| template <class T> struct is_integral; |
| template <class T> struct is_floating_point; |
| template <class T> struct is_array; |
| template <class T> struct is_pointer; |
| template <class T> struct is_lvalue_reference; |
| template <class T> struct is_rvalue_reference; |
| template <class T> struct is_member_object_pointer; |
| template <class T> struct is_member_function_pointer; |
| template <class T> struct is_enum; |
| template <class T> struct is_union; |
| template <class T> struct is_class; |
| template <class T> struct is_function; |
| |
| // Secondary classification traits: |
| template <class T> struct is_reference; |
| template <class T> struct is_arithmetic; |
| template <class T> struct is_fundamental; |
| template <class T> struct is_member_pointer; |
| template <class T> struct is_scalar; |
| template <class T> struct is_object; |
| template <class T> struct is_compound; |
| |
| // Const-volatile properties and transformations: |
| template <class T> struct is_const; |
| template <class T> struct is_volatile; |
| template <class T> struct remove_const; |
| template <class T> struct remove_volatile; |
| template <class T> struct remove_cv; |
| template <class T> struct add_const; |
| template <class T> struct add_volatile; |
| template <class T> struct add_cv; |
| |
| // Reference transformations: |
| template <class T> struct remove_reference; |
| template <class T> struct add_lvalue_reference; |
| template <class T> struct add_rvalue_reference; |
| |
| // Pointer transformations: |
| template <class T> struct remove_pointer; |
| template <class T> struct add_pointer; |
| |
| // Integral properties: |
| template <class T> struct is_signed; |
| template <class T> struct is_unsigned; |
| template <class T> struct make_signed; |
| template <class T> struct make_unsigned; |
| |
| // Array properties and transformations: |
| template <class T> struct rank; |
| template <class T, unsigned I = 0> struct extent; |
| template <class T> struct remove_extent; |
| template <class T> struct remove_all_extents; |
| |
| // Member introspection: |
| template <class T> struct is_pod; |
| template <class T> struct is_trivial; |
| template <class T> struct is_trivially_copyable; |
| template <class T> struct is_standard_layout; |
| template <class T> struct is_literal_type; |
| template <class T> struct is_empty; |
| template <class T> struct is_polymorphic; |
| template <class T> struct is_abstract; |
| template <class T> struct is_final; // C++14 |
| |
| template <class T, class... Args> struct is_constructible; |
| template <class T> struct is_default_constructible; |
| template <class T> struct is_copy_constructible; |
| template <class T> struct is_move_constructible; |
| template <class T, class U> struct is_assignable; |
| template <class T> struct is_copy_assignable; |
| template <class T> struct is_move_assignable; |
| template <class T> struct is_destructible; |
| |
| template <class T, class... Args> struct is_trivially_constructible; |
| template <class T> struct is_trivially_default_constructible; |
| template <class T> struct is_trivially_copy_constructible; |
| template <class T> struct is_trivially_move_constructible; |
| template <class T, class U> struct is_trivially_assignable; |
| template <class T> struct is_trivially_copy_assignable; |
| template <class T> struct is_trivially_move_assignable; |
| template <class T> struct is_trivially_destructible; |
| |
| template <class T, class... Args> struct is_nothrow_constructible; |
| template <class T> struct is_nothrow_default_constructible; |
| template <class T> struct is_nothrow_copy_constructible; |
| template <class T> struct is_nothrow_move_constructible; |
| template <class T, class U> struct is_nothrow_assignable; |
| template <class T> struct is_nothrow_copy_assignable; |
| template <class T> struct is_nothrow_move_assignable; |
| template <class T> struct is_nothrow_destructible; |
| |
| template <class T> struct has_virtual_destructor; |
| |
| // Relationships between types: |
| template <class T, class U> struct is_same; |
| template <class Base, class Derived> struct is_base_of; |
| template <class From, class To> struct is_convertible; |
| |
| // Alignment properties and transformations: |
| template <class T> struct alignment_of; |
| template <size_t Len, size_t Align = most_stringent_alignment_requirement> |
| struct aligned_storage; |
| template <size_t Len, class... Types> struct aligned_union; |
| |
| template <class T> struct decay; |
| template <class... T> struct common_type; |
| template <class T> struct underlying_type; |
| template <class> class result_of; // undefined |
| template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>; |
| |
| // const-volatile modifications: |
| template <class T> |
| using remove_const_t = typename remove_const<T>::type; // C++14 |
| template <class T> |
| using remove_volatile_t = typename remove_volatile<T>::type; // C++14 |
| template <class T> |
| using remove_cv_t = typename remove_cv<T>::type; // C++14 |
| template <class T> |
| using add_const_t = typename add_const<T>::type; // C++14 |
| template <class T> |
| using add_volatile_t = typename add_volatile<T>::type; // C++14 |
| template <class T> |
| using add_cv_t = typename add_cv<T>::type; // C++14 |
| |
| // reference modifications: |
| template <class T> |
| using remove_reference_t = typename remove_reference<T>::type; // C++14 |
| template <class T> |
| using add_lvalue_reference_t = typename add_lvalue_reference<T>::type; // C++14 |
| template <class T> |
| using add_rvalue_reference_t = typename add_rvalue_reference<T>::type; // C++14 |
| |
| // sign modifications: |
| template <class T> |
| using make_signed_t = typename make_signed<T>::type; // C++14 |
| template <class T> |
| using make_unsigned_t = typename make_unsigned<T>::type; // C++14 |
| |
| // array modifications: |
| template <class T> |
| using remove_extent_t = typename remove_extent<T>::type; // C++14 |
| template <class T> |
| using remove_all_extents_t = typename remove_all_extents<T>::type; // C++14 |
| |
| // pointer modifications: |
| template <class T> |
| using remove_pointer_t = typename remove_pointer<T>::type; // C++14 |
| template <class T> |
| using add_pointer_t = typename add_pointer<T>::type; // C++14 |
| |
| // other transformations: |
| template <size_t Len, std::size_t Align=default-alignment> |
| using aligned_storage_t = typename aligned_storage<Len,Align>::type; // C++14 |
| template <std::size_t Len, class... Types> |
| using aligned_union_t = typename aligned_union<Len,Types...>::type; // C++14 |
| template <class T> |
| using decay_t = typename decay<T>::type; // C++14 |
| template <bool b, class T=void> |
| using enable_if_t = typename enable_if<b,T>::type; // C++14 |
| template <bool b, class T, class F> |
| using conditional_t = typename conditional<b,T,F>::type; // C++14 |
| template <class... T> |
| using common_type_t = typename common_type<T...>::type; // C++14 |
| template <class T> |
| using underlying_type_t = typename underlying_type<T>::type; // C++14 |
| template <class F, class... ArgTypes> |
| using result_of_t = typename result_of<F(ArgTypes...)>::type; // C++14 |
| |
| } // std |
| |
| */ |
| #include <__config> |
| #include <cstddef> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <bool _Bp, class _If, class _Then> |
| struct _LIBCPP_TYPE_VIS_ONLY conditional {typedef _If type;}; |
| template <class _If, class _Then> |
| struct _LIBCPP_TYPE_VIS_ONLY conditional<false, _If, _Then> {typedef _Then type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <bool _Bp, class _If, class _Then> using conditional_t = typename conditional<_Bp, _If, _Then>::type; |
| #endif |
| |
| template <bool, class _Tp = void> struct _LIBCPP_TYPE_VIS_ONLY enable_if {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY enable_if<true, _Tp> {typedef _Tp type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <bool _Bp, class _Tp = void> using enable_if_t = typename enable_if<_Bp, _Tp>::type; |
| #endif |
| |
| |
| struct __two {char __lx[2];}; |
| |
| // helper class: |
| |
| template <class _Tp, _Tp __v> |
| struct _LIBCPP_TYPE_VIS_ONLY integral_constant |
| { |
| static _LIBCPP_CONSTEXPR const _Tp value = __v; |
| typedef _Tp value_type; |
| typedef integral_constant type; |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR operator value_type() const _NOEXCEPT {return value;} |
| #if _LIBCPP_STD_VER > 11 |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr value_type operator ()() const _NOEXCEPT {return value;} |
| #endif |
| }; |
| |
| template <class _Tp, _Tp __v> |
| _LIBCPP_CONSTEXPR const _Tp integral_constant<_Tp, __v>::value; |
| |
| typedef integral_constant<bool, true> true_type; |
| typedef integral_constant<bool, false> false_type; |
| |
| // is_const |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const<_Tp const> : public true_type {}; |
| |
| // is_volatile |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile<_Tp volatile> : public true_type {}; |
| |
| // remove_const |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const<const _Tp> {typedef _Tp type;}; |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_const_t = typename remove_const<_Tp>::type; |
| #endif |
| |
| // remove_volatile |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile<volatile _Tp> {typedef _Tp type;}; |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_volatile_t = typename remove_volatile<_Tp>::type; |
| #endif |
| |
| // remove_cv |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_cv |
| {typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;}; |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_cv_t = typename remove_cv<_Tp>::type; |
| #endif |
| |
| // is_void |
| |
| template <class _Tp> struct __libcpp_is_void : public false_type {}; |
| template <> struct __libcpp_is_void<void> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_void |
| : public __libcpp_is_void<typename remove_cv<_Tp>::type> {}; |
| |
| // __is_nullptr_t |
| |
| template <class _Tp> struct __is_nullptr_t_impl : public false_type {}; |
| template <> struct __is_nullptr_t_impl<nullptr_t> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __is_nullptr_t |
| : public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_null_pointer |
| : public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {}; |
| #endif |
| |
| // is_integral |
| |
| template <class _Tp> struct __libcpp_is_integral : public false_type {}; |
| template <> struct __libcpp_is_integral<bool> : public true_type {}; |
| template <> struct __libcpp_is_integral<char> : public true_type {}; |
| template <> struct __libcpp_is_integral<signed char> : public true_type {}; |
| template <> struct __libcpp_is_integral<unsigned char> : public true_type {}; |
| template <> struct __libcpp_is_integral<wchar_t> : public true_type {}; |
| #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS |
| template <> struct __libcpp_is_integral<char16_t> : public true_type {}; |
| template <> struct __libcpp_is_integral<char32_t> : public true_type {}; |
| #endif // _LIBCPP_HAS_NO_UNICODE_CHARS |
| template <> struct __libcpp_is_integral<short> : public true_type {}; |
| template <> struct __libcpp_is_integral<unsigned short> : public true_type {}; |
| template <> struct __libcpp_is_integral<int> : public true_type {}; |
| template <> struct __libcpp_is_integral<unsigned int> : public true_type {}; |
| template <> struct __libcpp_is_integral<long> : public true_type {}; |
| template <> struct __libcpp_is_integral<unsigned long> : public true_type {}; |
| template <> struct __libcpp_is_integral<long long> : public true_type {}; |
| template <> struct __libcpp_is_integral<unsigned long long> : public true_type {}; |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| template <> struct __libcpp_is_integral<__int128_t> : public true_type {}; |
| template <> struct __libcpp_is_integral<__uint128_t> : public true_type {}; |
| #endif |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_integral |
| : public __libcpp_is_integral<typename remove_cv<_Tp>::type> {}; |
| |
| // is_floating_point |
| |
| template <class _Tp> struct __libcpp_is_floating_point : public false_type {}; |
| template <> struct __libcpp_is_floating_point<float> : public true_type {}; |
| template <> struct __libcpp_is_floating_point<double> : public true_type {}; |
| template <> struct __libcpp_is_floating_point<long double> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_floating_point |
| : public __libcpp_is_floating_point<typename remove_cv<_Tp>::type> {}; |
| |
| // is_array |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array |
| : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[]> |
| : public true_type {}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[_Np]> |
| : public true_type {}; |
| |
| // is_pointer |
| |
| template <class _Tp> struct __libcpp_is_pointer : public false_type {}; |
| template <class _Tp> struct __libcpp_is_pointer<_Tp*> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pointer |
| : public __libcpp_is_pointer<typename remove_cv<_Tp>::type> {}; |
| |
| // is_reference |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference<_Tp&> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference : public false_type {}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference<_Tp&&> : public true_type {}; |
| #endif |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&> : public true_type {}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&&> : public true_type {}; |
| #endif |
| |
| // is_union |
| |
| #if __has_feature(is_union) || (_GNUC_VER >= 403) |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union |
| : public integral_constant<bool, __is_union(_Tp)> {}; |
| |
| #else |
| |
| template <class _Tp> struct __libcpp_union : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union |
| : public __libcpp_union<typename remove_cv<_Tp>::type> {}; |
| |
| #endif |
| |
| // is_class |
| |
| #if __has_feature(is_class) || (_GNUC_VER >= 403) |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class |
| : public integral_constant<bool, __is_class(_Tp)> {}; |
| |
| #else |
| |
| namespace __is_class_imp |
| { |
| template <class _Tp> char __test(int _Tp::*); |
| template <class _Tp> __two __test(...); |
| } |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class |
| : public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {}; |
| |
| #endif |
| |
| // is_same |
| |
| template <class _Tp, class _Up> struct _LIBCPP_TYPE_VIS_ONLY is_same : public false_type {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_same<_Tp, _Tp> : public true_type {}; |
| |
| // is_function |
| |
| namespace __libcpp_is_function_imp |
| { |
| template <class _Tp> char __test(_Tp*); |
| template <class _Tp> __two __test(...); |
| template <class _Tp> _Tp& __source(); |
| } |
| |
| template <class _Tp, bool = is_class<_Tp>::value || |
| is_union<_Tp>::value || |
| is_void<_Tp>::value || |
| is_reference<_Tp>::value || |
| __is_nullptr_t<_Tp>::value > |
| struct __libcpp_is_function |
| : public integral_constant<bool, sizeof(__libcpp_is_function_imp::__test<_Tp>(__libcpp_is_function_imp::__source<_Tp>())) == 1> |
| {}; |
| template <class _Tp> struct __libcpp_is_function<_Tp, true> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_function |
| : public __libcpp_is_function<_Tp> {}; |
| |
| // is_member_function_pointer |
| |
| // template <class _Tp> struct __libcpp_is_member_function_pointer : public false_type {}; |
| // template <class _Tp, class _Up> struct __libcpp_is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {}; |
| // |
| |
| template <class _MP, bool _IsMemberFuctionPtr, bool _IsMemberObjectPtr> |
| struct __member_pointer_traits_imp |
| { // forward declaration; specializations later |
| }; |
| |
| |
| namespace __libcpp_is_member_function_pointer_imp { |
| template <typename _Tp> |
| char __test(typename std::__member_pointer_traits_imp<_Tp, true, false>::_FnType *); |
| |
| template <typename> |
| std::__two __test(...); |
| }; |
| |
| template <class _Tp> struct __libcpp_is_member_function_pointer |
| : public integral_constant<bool, sizeof(__libcpp_is_member_function_pointer_imp::__test<_Tp>(nullptr)) == 1> {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_function_pointer |
| : public __libcpp_is_member_function_pointer<typename remove_cv<_Tp>::type> {}; |
| |
| // is_member_pointer |
| |
| template <class _Tp> struct __libcpp_is_member_pointer : public false_type {}; |
| template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_pointer |
| : public __libcpp_is_member_pointer<typename remove_cv<_Tp>::type> {}; |
| |
| // is_member_object_pointer |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_object_pointer |
| : public integral_constant<bool, is_member_pointer<_Tp>::value && |
| !is_member_function_pointer<_Tp>::value> {}; |
| |
| // is_enum |
| |
| #if __has_feature(is_enum) || (_GNUC_VER >= 403) |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum |
| : public integral_constant<bool, __is_enum(_Tp)> {}; |
| |
| #else |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum |
| : public integral_constant<bool, !is_void<_Tp>::value && |
| !is_integral<_Tp>::value && |
| !is_floating_point<_Tp>::value && |
| !is_array<_Tp>::value && |
| !is_pointer<_Tp>::value && |
| !is_reference<_Tp>::value && |
| !is_member_pointer<_Tp>::value && |
| !is_union<_Tp>::value && |
| !is_class<_Tp>::value && |
| !is_function<_Tp>::value > {}; |
| |
| #endif |
| |
| // is_arithmetic |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_arithmetic |
| : public integral_constant<bool, is_integral<_Tp>::value || |
| is_floating_point<_Tp>::value> {}; |
| |
| // is_fundamental |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_fundamental |
| : public integral_constant<bool, is_void<_Tp>::value || |
| __is_nullptr_t<_Tp>::value || |
| is_arithmetic<_Tp>::value> {}; |
| |
| // is_scalar |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_scalar |
| : public integral_constant<bool, is_arithmetic<_Tp>::value || |
| is_member_pointer<_Tp>::value || |
| is_pointer<_Tp>::value || |
| __is_nullptr_t<_Tp>::value || |
| is_enum<_Tp>::value > {}; |
| |
| template <> struct _LIBCPP_TYPE_VIS_ONLY is_scalar<nullptr_t> : public true_type {}; |
| |
| // is_object |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_object |
| : public integral_constant<bool, is_scalar<_Tp>::value || |
| is_array<_Tp>::value || |
| is_union<_Tp>::value || |
| is_class<_Tp>::value > {}; |
| |
| // is_compound |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_compound |
| : public integral_constant<bool, !is_fundamental<_Tp>::value> {}; |
| |
| // add_const |
| |
| template <class _Tp, bool = is_reference<_Tp>::value || |
| is_function<_Tp>::value || |
| is_const<_Tp>::value > |
| struct __add_const {typedef _Tp type;}; |
| |
| template <class _Tp> |
| struct __add_const<_Tp, false> {typedef const _Tp type;}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_const |
| {typedef typename __add_const<_Tp>::type type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using add_const_t = typename add_const<_Tp>::type; |
| #endif |
| |
| // add_volatile |
| |
| template <class _Tp, bool = is_reference<_Tp>::value || |
| is_function<_Tp>::value || |
| is_volatile<_Tp>::value > |
| struct __add_volatile {typedef _Tp type;}; |
| |
| template <class _Tp> |
| struct __add_volatile<_Tp, false> {typedef volatile _Tp type;}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_volatile |
| {typedef typename __add_volatile<_Tp>::type type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using add_volatile_t = typename add_volatile<_Tp>::type; |
| #endif |
| |
| // add_cv |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_cv |
| {typedef typename add_const<typename add_volatile<_Tp>::type>::type type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using add_cv_t = typename add_cv<_Tp>::type; |
| #endif |
| |
| // remove_reference |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&> {typedef _Tp type;}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&&> {typedef _Tp type;}; |
| #endif |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_reference_t = typename remove_reference<_Tp>::type; |
| #endif |
| |
| // add_lvalue_reference |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference {typedef _Tp& type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<_Tp&> {typedef _Tp& type;}; // for older compiler |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<void> {typedef void type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<const void> {typedef const void type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<volatile void> {typedef volatile void type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<const volatile void> {typedef const volatile void type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using add_lvalue_reference_t = typename add_lvalue_reference<_Tp>::type; |
| #endif |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference {typedef _Tp&& type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<void> {typedef void type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<const void> {typedef const void type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<volatile void> {typedef volatile void type;}; |
| template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<const volatile void> {typedef const volatile void type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using add_rvalue_reference_t = typename add_rvalue_reference<_Tp>::type; |
| #endif |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| typename add_rvalue_reference<_Tp>::type |
| declval() _NOEXCEPT; |
| |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| typename add_lvalue_reference<_Tp>::type |
| declval(); |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| struct __any |
| { |
| __any(...); |
| }; |
| |
| // remove_pointer |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp*> {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const> {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* volatile> {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const volatile> {typedef _Tp type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_pointer_t = typename remove_pointer<_Tp>::type; |
| #endif |
| |
| // add_pointer |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_pointer |
| {typedef typename remove_reference<_Tp>::type* type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using add_pointer_t = typename add_pointer<_Tp>::type; |
| #endif |
| |
| // is_signed |
| |
| template <class _Tp, bool = is_integral<_Tp>::value> |
| struct __libcpp_is_signed_impl : public integral_constant<bool, _Tp(-1) < _Tp(0)> {}; |
| |
| template <class _Tp> |
| struct __libcpp_is_signed_impl<_Tp, false> : public true_type {}; // floating point |
| |
| template <class _Tp, bool = is_arithmetic<_Tp>::value> |
| struct __libcpp_is_signed : public __libcpp_is_signed_impl<_Tp> {}; |
| |
| template <class _Tp> struct __libcpp_is_signed<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_signed : public __libcpp_is_signed<_Tp> {}; |
| |
| // is_unsigned |
| |
| template <class _Tp, bool = is_integral<_Tp>::value> |
| struct __libcpp_is_unsigned_impl : public integral_constant<bool, _Tp(0) < _Tp(-1)> {}; |
| |
| template <class _Tp> |
| struct __libcpp_is_unsigned_impl<_Tp, false> : public false_type {}; // floating point |
| |
| template <class _Tp, bool = is_arithmetic<_Tp>::value> |
| struct __libcpp_is_unsigned : public __libcpp_is_unsigned_impl<_Tp> {}; |
| |
| template <class _Tp> struct __libcpp_is_unsigned<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_unsigned : public __libcpp_is_unsigned<_Tp> {}; |
| |
| // rank |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank |
| : public integral_constant<size_t, 0> {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[]> |
| : public integral_constant<size_t, rank<_Tp>::value + 1> {}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[_Np]> |
| : public integral_constant<size_t, rank<_Tp>::value + 1> {}; |
| |
| // extent |
| |
| template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TYPE_VIS_ONLY extent |
| : public integral_constant<size_t, 0> {}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], 0> |
| : public integral_constant<size_t, 0> {}; |
| template <class _Tp, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], _Ip> |
| : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], 0> |
| : public integral_constant<size_t, _Np> {}; |
| template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], _Ip> |
| : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; |
| |
| // remove_extent |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent |
| {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[]> |
| {typedef _Tp type;}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[_Np]> |
| {typedef _Tp type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_extent_t = typename remove_extent<_Tp>::type; |
| #endif |
| |
| // remove_all_extents |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents |
| {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[]> |
| {typedef typename remove_all_extents<_Tp>::type type;}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[_Np]> |
| {typedef typename remove_all_extents<_Tp>::type type;}; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using remove_all_extents_t = typename remove_all_extents<_Tp>::type; |
| #endif |
| |
| // decay |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY decay |
| { |
| private: |
| typedef typename remove_reference<_Tp>::type _Up; |
| public: |
| typedef typename conditional |
| < |
| is_array<_Up>::value, |
| typename remove_extent<_Up>::type*, |
| typename conditional |
| < |
| is_function<_Up>::value, |
| typename add_pointer<_Up>::type, |
| typename remove_cv<_Up>::type |
| >::type |
| >::type type; |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using decay_t = typename decay<_Tp>::type; |
| #endif |
| |
| // is_abstract |
| |
| namespace __is_abstract_imp |
| { |
| template <class _Tp> char __test(_Tp (*)[1]); |
| template <class _Tp> __two __test(...); |
| } |
| |
| template <class _Tp, bool = is_class<_Tp>::value> |
| struct __libcpp_abstract : public integral_constant<bool, sizeof(__is_abstract_imp::__test<_Tp>(0)) != 1> {}; |
| |
| template <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_abstract : public __libcpp_abstract<_Tp> {}; |
| |
| // is_final |
| |
| #if _LIBCPP_STD_VER > 11 && __has_feature(is_final) |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY |
| is_final : public integral_constant<bool, __is_final(_Tp)> {}; |
| #endif |
| |
| // is_base_of |
| |
| #ifdef _LIBCPP_HAS_IS_BASE_OF |
| |
| template <class _Bp, class _Dp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_base_of |
| : public integral_constant<bool, __is_base_of(_Bp, _Dp)> {}; |
| |
| #else // _LIBCPP_HAS_IS_BASE_OF |
| |
| namespace __is_base_of_imp |
| { |
| template <class _Tp> |
| struct _Dst |
| { |
| _Dst(const volatile _Tp &); |
| }; |
| template <class _Tp> |
| struct _Src |
| { |
| operator const volatile _Tp &(); |
| template <class _Up> operator const _Dst<_Up> &(); |
| }; |
| template <size_t> struct __one { typedef char type; }; |
| template <class _Bp, class _Dp> typename __one<sizeof(_Dst<_Bp>(declval<_Src<_Dp> >()))>::type __test(int); |
| template <class _Bp, class _Dp> __two __test(...); |
| } |
| |
| template <class _Bp, class _Dp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_base_of |
| : public integral_constant<bool, is_class<_Bp>::value && |
| sizeof(__is_base_of_imp::__test<_Bp, _Dp>(0)) == 2> {}; |
| |
| #endif // _LIBCPP_HAS_IS_BASE_OF |
| |
| // is_convertible |
| |
| #if __has_feature(is_convertible_to) |
| |
| template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible |
| : public integral_constant<bool, __is_convertible_to(_T1, _T2) && |
| !is_abstract<_T2>::value> {}; |
| |
| #else // __has_feature(is_convertible_to) |
| |
| namespace __is_convertible_imp |
| { |
| template <class _Tp> char __test(_Tp); |
| template <class _Tp> __two __test(...); |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> _Tp&& __source(); |
| #else |
| template <class _Tp> typename remove_reference<_Tp>::type& __source(); |
| #endif |
| |
| template <class _Tp, bool _IsArray = is_array<_Tp>::value, |
| bool _IsFunction = is_function<_Tp>::value, |
| bool _IsVoid = is_void<_Tp>::value> |
| struct __is_array_function_or_void {enum {value = 0};}; |
| template <class _Tp> struct __is_array_function_or_void<_Tp, true, false, false> {enum {value = 1};}; |
| template <class _Tp> struct __is_array_function_or_void<_Tp, false, true, false> {enum {value = 2};}; |
| template <class _Tp> struct __is_array_function_or_void<_Tp, false, false, true> {enum {value = 3};}; |
| } |
| |
| template <class _Tp, |
| unsigned = __is_convertible_imp::__is_array_function_or_void<typename remove_reference<_Tp>::type>::value> |
| struct __is_convertible_check |
| { |
| static const size_t __v = 0; |
| }; |
| |
| template <class _Tp> |
| struct __is_convertible_check<_Tp, 0> |
| { |
| static const size_t __v = sizeof(_Tp); |
| }; |
| |
| template <class _T1, class _T2, |
| unsigned _T1_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T1>::value, |
| unsigned _T2_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T2>::value> |
| struct __is_convertible |
| : public integral_constant<bool, |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1 |
| #else |
| sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1 |
| && !(!is_function<_T1>::value && !is_reference<_T1>::value && is_reference<_T2>::value |
| && (!is_const<typename remove_reference<_T2>::type>::value |
| || is_volatile<typename remove_reference<_T2>::type>::value) |
| && (is_same<typename remove_cv<_T1>::type, |
| typename remove_cv<typename remove_reference<_T2>::type>::type>::value |
| || is_base_of<typename remove_reference<_T2>::type, _T1>::value)) |
| #endif |
| > |
| {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 0> : false_type {}; |
| |
| template <class _T1> struct __is_convertible<_T1, const _T1&, 1, 0> : true_type {}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _T1> struct __is_convertible<_T1, _T1&&, 1, 0> : true_type {}; |
| template <class _T1> struct __is_convertible<_T1, const _T1&&, 1, 0> : true_type {}; |
| template <class _T1> struct __is_convertible<_T1, volatile _T1&&, 1, 0> : true_type {}; |
| template <class _T1> struct __is_convertible<_T1, const volatile _T1&&, 1, 0> : true_type {}; |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2*, 1, 0> |
| : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*>::value> {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2* const, 1, 0> |
| : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const>::value> {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2* volatile, 1, 0> |
| : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*volatile>::value> {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2* const volatile, 1, 0> |
| : public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const volatile>::value> {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 0> : public false_type {}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _T1> struct __is_convertible<_T1, _T1&&, 2, 0> : public true_type {}; |
| #endif |
| template <class _T1> struct __is_convertible<_T1, _T1&, 2, 0> : public true_type {}; |
| template <class _T1> struct __is_convertible<_T1, _T1*, 2, 0> : public true_type {}; |
| template <class _T1> struct __is_convertible<_T1, _T1*const, 2, 0> : public true_type {}; |
| template <class _T1> struct __is_convertible<_T1, _T1*volatile, 2, 0> : public true_type {}; |
| template <class _T1> struct __is_convertible<_T1, _T1*const volatile, 2, 0> : public true_type {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 0> : public false_type {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 1> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 1> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 1> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 1> : public false_type {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 2> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 2> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 2> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 2> : public false_type {}; |
| |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 3> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {}; |
| template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {}; |
| |
| template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible |
| : public __is_convertible<_T1, _T2> |
| { |
| static const size_t __complete_check1 = __is_convertible_check<_T1>::__v; |
| static const size_t __complete_check2 = __is_convertible_check<_T2>::__v; |
| }; |
| |
| #endif // __has_feature(is_convertible_to) |
| |
| // is_empty |
| |
| #if __has_feature(is_empty) || (_GNUC_VER >= 407) |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_empty |
| : public integral_constant<bool, __is_empty(_Tp)> {}; |
| |
| #else // __has_feature(is_empty) |
| |
| template <class _Tp> |
| struct __is_empty1 |
| : public _Tp |
| { |
| double __lx; |
| }; |
| |
| struct __is_empty2 |
| { |
| double __lx; |
| }; |
| |
| template <class _Tp, bool = is_class<_Tp>::value> |
| struct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>) == sizeof(__is_empty2)> {}; |
| |
| template <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_empty : public __libcpp_empty<_Tp> {}; |
| |
| #endif // __has_feature(is_empty) |
| |
| // is_polymorphic |
| |
| #if __has_feature(is_polymorphic) || defined(_LIBCPP_MSVC) |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic |
| : public integral_constant<bool, __is_polymorphic(_Tp)> {}; |
| |
| #else |
| |
| template<typename _Tp> char &__is_polymorphic_impl( |
| typename enable_if<sizeof((_Tp*)dynamic_cast<const volatile void*>(declval<_Tp*>())) != 0, |
| int>::type); |
| template<typename _Tp> __two &__is_polymorphic_impl(...); |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic |
| : public integral_constant<bool, sizeof(__is_polymorphic_impl<_Tp>(0)) == 1> {}; |
| |
| #endif // __has_feature(is_polymorphic) |
| |
| // has_virtual_destructor |
| |
| #if __has_feature(has_virtual_destructor) || (_GNUC_VER >= 403) |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor |
| : public integral_constant<bool, __has_virtual_destructor(_Tp)> {}; |
| |
| #else |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor |
| : public false_type {}; |
| |
| #endif |
| |
| // alignment_of |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY alignment_of |
| : public integral_constant<size_t, __alignof__(_Tp)> {}; |
| |
| // aligned_storage |
| |
| template <class _Hp, class _Tp> |
| struct __type_list |
| { |
| typedef _Hp _Head; |
| typedef _Tp _Tail; |
| }; |
| |
| struct __nat |
| { |
| #ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS |
| __nat() = delete; |
| __nat(const __nat&) = delete; |
| __nat& operator=(const __nat&) = delete; |
| ~__nat() = delete; |
| #endif |
| }; |
| |
| template <class _Tp> |
| struct __align_type |
| { |
| static const size_t value = alignment_of<_Tp>::value; |
| typedef _Tp type; |
| }; |
| |
| struct __struct_double {long double __lx;}; |
| struct __struct_double4 {double __lx[4];}; |
| |
| typedef |
| __type_list<__align_type<unsigned char>, |
| __type_list<__align_type<unsigned short>, |
| __type_list<__align_type<unsigned int>, |
| __type_list<__align_type<unsigned long>, |
| __type_list<__align_type<unsigned long long>, |
| __type_list<__align_type<double>, |
| __type_list<__align_type<long double>, |
| __type_list<__align_type<__struct_double>, |
| __type_list<__align_type<__struct_double4>, |
| __type_list<__align_type<int*>, |
| __nat |
| > > > > > > > > > > __all_types; |
| |
| template <class _TL, size_t _Align> struct __find_pod; |
| |
| template <class _Hp, size_t _Align> |
| struct __find_pod<__type_list<_Hp, __nat>, _Align> |
| { |
| typedef typename conditional< |
| _Align == _Hp::value, |
| typename _Hp::type, |
| void |
| >::type type; |
| }; |
| |
| template <class _Hp, class _Tp, size_t _Align> |
| struct __find_pod<__type_list<_Hp, _Tp>, _Align> |
| { |
| typedef typename conditional< |
| _Align == _Hp::value, |
| typename _Hp::type, |
| typename __find_pod<_Tp, _Align>::type |
| >::type type; |
| }; |
| |
| template <class _TL, size_t _Len> struct __find_max_align; |
| |
| template <class _Hp, size_t _Len> |
| struct __find_max_align<__type_list<_Hp, __nat>, _Len> : public integral_constant<size_t, _Hp::value> {}; |
| |
| template <size_t _Len, size_t _A1, size_t _A2> |
| struct __select_align |
| { |
| private: |
| static const size_t __min = _A2 < _A1 ? _A2 : _A1; |
| static const size_t __max = _A1 < _A2 ? _A2 : _A1; |
| public: |
| static const size_t value = _Len < __max ? __min : __max; |
| }; |
| |
| template <class _Hp, class _Tp, size_t _Len> |
| struct __find_max_align<__type_list<_Hp, _Tp>, _Len> |
| : public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {}; |
| |
| template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value> |
| struct _LIBCPP_TYPE_VIS_ONLY aligned_storage |
| { |
| typedef typename __find_pod<__all_types, _Align>::type _Aligner; |
| static_assert(!is_void<_Aligner>::value, ""); |
| union type |
| { |
| _Aligner __align; |
| unsigned char __data[_Len]; |
| }; |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value> |
| using aligned_storage_t = typename aligned_storage<_Len, _Align>::type; |
| #endif |
| |
| #define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \ |
| template <size_t _Len>\ |
| struct _LIBCPP_TYPE_VIS_ONLY aligned_storage<_Len, n>\ |
| {\ |
| struct _ALIGNAS(n) type\ |
| {\ |
| unsigned char __lx[_Len];\ |
| };\ |
| } |
| |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x8); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x10); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x20); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x40); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x80); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x100); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x200); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x400); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x800); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1000); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2000); |
| // MSDN says that MSVC does not support alignment beyond 8192 (=0x2000) |
| #if !defined(_LIBCPP_MSVC) |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000); |
| #endif // !_LIBCPP_MSVC |
| |
| #undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| // aligned_union |
| |
| template <size_t _I0, size_t ..._In> |
| struct __static_max; |
| |
| template <size_t _I0> |
| struct __static_max<_I0> |
| { |
| static const size_t value = _I0; |
| }; |
| |
| template <size_t _I0, size_t _I1, size_t ..._In> |
| struct __static_max<_I0, _I1, _In...> |
| { |
| static const size_t value = _I0 >= _I1 ? __static_max<_I0, _In...>::value : |
| __static_max<_I1, _In...>::value; |
| }; |
| |
| template <size_t _Len, class _Type0, class ..._Types> |
| struct aligned_union |
| { |
| static const size_t alignment_value = __static_max<__alignof__(_Type0), |
| __alignof__(_Types)...>::value; |
| static const size_t __len = __static_max<_Len, sizeof(_Type0), |
| sizeof(_Types)...>::value; |
| typedef typename aligned_storage<__len, alignment_value>::type type; |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <size_t _Len, class ..._Types> using aligned_union_t = typename aligned_union<_Len, _Types...>::type; |
| #endif |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp> |
| struct __numeric_type |
| { |
| static void __test(...); |
| static float __test(float); |
| static double __test(char); |
| static double __test(int); |
| static double __test(unsigned); |
| static double __test(long); |
| static double __test(unsigned long); |
| static double __test(long long); |
| static double __test(unsigned long long); |
| static double __test(double); |
| static long double __test(long double); |
| |
| typedef decltype(__test(declval<_Tp>())) type; |
| static const bool value = !is_same<type, void>::value; |
| }; |
| |
| template <> |
| struct __numeric_type<void> |
| { |
| static const bool value = true; |
| }; |
| |
| // __promote |
| |
| template <class _A1, class _A2 = void, class _A3 = void, |
| bool = __numeric_type<_A1>::value && |
| __numeric_type<_A2>::value && |
| __numeric_type<_A3>::value> |
| class __promote |
| { |
| static const bool value = false; |
| }; |
| |
| template <class _A1, class _A2, class _A3> |
| class __promote<_A1, _A2, _A3, true> |
| { |
| private: |
| typedef typename __promote<_A1>::type __type1; |
| typedef typename __promote<_A2>::type __type2; |
| typedef typename __promote<_A3>::type __type3; |
| public: |
| typedef decltype(__type1() + __type2() + __type3()) type; |
| static const bool value = true; |
| }; |
| |
| template <class _A1, class _A2> |
| class __promote<_A1, _A2, void, true> |
| { |
| private: |
| typedef typename __promote<_A1>::type __type1; |
| typedef typename __promote<_A2>::type __type2; |
| public: |
| typedef decltype(__type1() + __type2()) type; |
| static const bool value = true; |
| }; |
| |
| template <class _A1> |
| class __promote<_A1, void, void, true> |
| { |
| public: |
| typedef typename __numeric_type<_A1>::type type; |
| static const bool value = true; |
| static const bool __does_not_throw = _NOEXCEPT_OR_FALSE(static_cast<type>(declval<_A1>())); |
| }; |
| |
| #ifdef _LIBCPP_STORE_AS_OPTIMIZATION |
| |
| // __transform |
| |
| template <class _Tp, size_t = sizeof(_Tp), bool = is_scalar<_Tp>::value> struct __transform {typedef _Tp type;}; |
| template <class _Tp> struct __transform<_Tp, 1, true> {typedef unsigned char type;}; |
| template <class _Tp> struct __transform<_Tp, 2, true> {typedef unsigned short type;}; |
| template <class _Tp> struct __transform<_Tp, 4, true> {typedef unsigned int type;}; |
| template <class _Tp> struct __transform<_Tp, 8, true> {typedef unsigned long long type;}; |
| |
| #endif // _LIBCPP_STORE_AS_OPTIMIZATION |
| |
| // make_signed / make_unsigned |
| |
| typedef |
| __type_list<signed char, |
| __type_list<signed short, |
| __type_list<signed int, |
| __type_list<signed long, |
| __type_list<signed long long, |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| __type_list<__int128_t, |
| #endif |
| __nat |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| > |
| #endif |
| > > > > > __signed_types; |
| |
| typedef |
| __type_list<unsigned char, |
| __type_list<unsigned short, |
| __type_list<unsigned int, |
| __type_list<unsigned long, |
| __type_list<unsigned long long, |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| __type_list<__uint128_t, |
| #endif |
| __nat |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| > |
| #endif |
| > > > > > __unsigned_types; |
| |
| template <class _TypeList, size_t _Size, bool = _Size <= sizeof(typename _TypeList::_Head)> struct __find_first; |
| |
| template <class _Hp, class _Tp, size_t _Size> |
| struct __find_first<__type_list<_Hp, _Tp>, _Size, true> |
| { |
| typedef _Hp type; |
| }; |
| |
| template <class _Hp, class _Tp, size_t _Size> |
| struct __find_first<__type_list<_Hp, _Tp>, _Size, false> |
| { |
| typedef typename __find_first<_Tp, _Size>::type type; |
| }; |
| |
| template <class _Tp, class _Up, bool = is_const<typename remove_reference<_Tp>::type>::value, |
| bool = is_volatile<typename remove_reference<_Tp>::type>::value> |
| struct __apply_cv |
| { |
| typedef _Up type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp, _Up, true, false> |
| { |
| typedef const _Up type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp, _Up, false, true> |
| { |
| typedef volatile _Up type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp, _Up, true, true> |
| { |
| typedef const volatile _Up type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp&, _Up, false, false> |
| { |
| typedef _Up& type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp&, _Up, true, false> |
| { |
| typedef const _Up& type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp&, _Up, false, true> |
| { |
| typedef volatile _Up& type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __apply_cv<_Tp&, _Up, true, true> |
| { |
| typedef const volatile _Up& type; |
| }; |
| |
| template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> |
| struct __make_signed {}; |
| |
| template <class _Tp> |
| struct __make_signed<_Tp, true> |
| { |
| typedef typename __find_first<__signed_types, sizeof(_Tp)>::type type; |
| }; |
| |
| template <> struct __make_signed<bool, true> {}; |
| template <> struct __make_signed< signed short, true> {typedef short type;}; |
| template <> struct __make_signed<unsigned short, true> {typedef short type;}; |
| template <> struct __make_signed< signed int, true> {typedef int type;}; |
| template <> struct __make_signed<unsigned int, true> {typedef int type;}; |
| template <> struct __make_signed< signed long, true> {typedef long type;}; |
| template <> struct __make_signed<unsigned long, true> {typedef long type;}; |
| template <> struct __make_signed< signed long long, true> {typedef long long type;}; |
| template <> struct __make_signed<unsigned long long, true> {typedef long long type;}; |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| template <> struct __make_signed<__int128_t, true> {typedef __int128_t type;}; |
| template <> struct __make_signed<__uint128_t, true> {typedef __int128_t type;}; |
| #endif |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY make_signed |
| { |
| typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type; |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using make_signed_t = typename make_signed<_Tp>::type; |
| #endif |
| |
| template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value> |
| struct __make_unsigned {}; |
| |
| template <class _Tp> |
| struct __make_unsigned<_Tp, true> |
| { |
| typedef typename __find_first<__unsigned_types, sizeof(_Tp)>::type type; |
| }; |
| |
| template <> struct __make_unsigned<bool, true> {}; |
| template <> struct __make_unsigned< signed short, true> {typedef unsigned short type;}; |
| template <> struct __make_unsigned<unsigned short, true> {typedef unsigned short type;}; |
| template <> struct __make_unsigned< signed int, true> {typedef unsigned int type;}; |
| template <> struct __make_unsigned<unsigned int, true> {typedef unsigned int type;}; |
| template <> struct __make_unsigned< signed long, true> {typedef unsigned long type;}; |
| template <> struct __make_unsigned<unsigned long, true> {typedef unsigned long type;}; |
| template <> struct __make_unsigned< signed long long, true> {typedef unsigned long long type;}; |
| template <> struct __make_unsigned<unsigned long long, true> {typedef unsigned long long type;}; |
| #ifndef _LIBCPP_HAS_NO_INT128 |
| template <> struct __make_unsigned<__int128_t, true> {typedef __uint128_t type;}; |
| template <> struct __make_unsigned<__uint128_t, true> {typedef __uint128_t type;}; |
| #endif |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY make_unsigned |
| { |
| typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type; |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class _Tp> using make_unsigned_t = typename make_unsigned<_Tp>::type; |
| #endif |
| |
| #ifdef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp, class _Up = void, class V = void> |
| struct _LIBCPP_TYPE_VIS_ONLY common_type |
| { |
| public: |
| typedef typename common_type<typename common_type<_Tp, _Up>::type, V>::type type; |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, void, void> |
| { |
| public: |
| typedef typename decay<_Tp>::type type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, void> |
| { |
| private: |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| static _Tp&& __t(); |
| static _Up&& __u(); |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| static _Tp __t(); |
| static _Up __u(); |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| public: |
| typedef typename remove_reference<decltype(true ? __t() : __u())>::type type; |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class ..._Tp> struct common_type; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp> |
| { |
| typedef typename decay<_Tp>::type type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up> |
| { |
| private: |
| static _Tp&& __t(); |
| static _Up&& __u(); |
| static bool __f(); |
| public: |
| typedef typename decay<decltype(__f() ? __t() : __u())>::type type; |
| }; |
| |
| template <class _Tp, class _Up, class ..._Vp> |
| struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, _Vp...> |
| { |
| typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp...>::type type; |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| template <class ..._Tp> using common_type_t = typename common_type<_Tp...>::type; |
| #endif |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // is_assignable |
| |
| template<typename, typename _Tp> struct __select_2nd { typedef _Tp type; }; |
| |
| template <class _Tp, class _Arg> |
| typename __select_2nd<decltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>())), true_type>::type |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| __is_assignable_test(_Tp&&, _Arg&&); |
| #else |
| __is_assignable_test(_Tp, _Arg&); |
| #endif |
| |
| template <class _Arg> |
| false_type |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| __is_assignable_test(__any, _Arg&&); |
| #else |
| __is_assignable_test(__any, _Arg&); |
| #endif |
| |
| template <class _Tp, class _Arg, bool = is_void<_Tp>::value || is_void<_Arg>::value> |
| struct __is_assignable_imp |
| : public common_type |
| < |
| decltype(__is_assignable_test(declval<_Tp>(), declval<_Arg>())) |
| >::type {}; |
| |
| template <class _Tp, class _Arg> |
| struct __is_assignable_imp<_Tp, _Arg, true> |
| : public false_type |
| { |
| }; |
| |
| template <class _Tp, class _Arg> |
| struct is_assignable |
| : public __is_assignable_imp<_Tp, _Arg> {}; |
| |
| // is_copy_assignable |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_copy_assignable |
| : public is_assignable<typename add_lvalue_reference<_Tp>::type, |
| const typename add_lvalue_reference<_Tp>::type> {}; |
| |
| // is_move_assignable |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_move_assignable |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| : public is_assignable<typename add_lvalue_reference<_Tp>::type, |
| const typename add_rvalue_reference<_Tp>::type> {}; |
| #else |
| : public is_copy_assignable<_Tp> {}; |
| #endif |
| |
| // is_destructible |
| |
| // if it's a reference, return true |
| // if it's a function, return false |
| // if it's void, return false |
| // if it's an array of unknown bound, return false |
| // Otherwise, return "std::declval<_Up&>().~_Up()" is well-formed |
| // where _Up is remove_all_extents<_Tp>::type |
| |
| template <class> |
| struct __is_destructible_apply { typedef int type; }; |
| |
| template <typename _Tp> |
| struct __is_destructor_wellformed { |
| template <typename _Tp1> |
| static char __test ( |
| typename __is_destructible_apply<decltype(_VSTD::declval<_Tp1&>().~_Tp1())>::type |
| ); |
| |
| template <typename _Tp1> |
| static __two __test (...); |
| |
| static const bool value = sizeof(__test<_Tp>(12)) == sizeof(char); |
| }; |
| |
| template <class _Tp, bool> |
| struct __destructible_imp; |
| |
| template <class _Tp> |
| struct __destructible_imp<_Tp, false> |
| : public _VSTD::integral_constant<bool, |
| __is_destructor_wellformed<typename _VSTD::remove_all_extents<_Tp>::type>::value> {}; |
| |
| template <class _Tp> |
| struct __destructible_imp<_Tp, true> |
| : public _VSTD::true_type {}; |
| |
| template <class _Tp, bool> |
| struct __destructible_false; |
| |
| template <class _Tp> |
| struct __destructible_false<_Tp, false> : public __destructible_imp<_Tp, _VSTD::is_reference<_Tp>::value> {}; |
| |
| template <class _Tp> |
| struct __destructible_false<_Tp, true> : public _VSTD::false_type {}; |
| |
| template <class _Tp> |
| struct is_destructible |
| : public __destructible_false<_Tp, _VSTD::is_function<_Tp>::value> {}; |
| |
| template <class _Tp> |
| struct is_destructible<_Tp[]> |
| : public _VSTD::false_type {}; |
| |
| template <> |
| struct is_destructible<void> |
| : public _VSTD::false_type {}; |
| |
| // move |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| typename remove_reference<_Tp>::type&& |
| move(_Tp&& __t) _NOEXCEPT |
| { |
| typedef typename remove_reference<_Tp>::type _Up; |
| return static_cast<_Up&&>(__t); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| _Tp&& |
| forward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT |
| { |
| return static_cast<_Tp&&>(__t); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| _Tp&& |
| forward(typename std::remove_reference<_Tp>::type&& __t) _NOEXCEPT |
| { |
| static_assert(!std::is_lvalue_reference<_Tp>::value, |
| "Can not forward an rvalue as an lvalue."); |
| return static_cast<_Tp&&>(__t); |
| } |
| |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp& |
| move(_Tp& __t) |
| { |
| return __t; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| const _Tp& |
| move(const _Tp& __t) |
| { |
| return __t; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp& |
| forward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT |
| { |
| return __t; |
| } |
| |
| |
| template <class _Tp> |
| class __rv |
| { |
| typedef typename remove_reference<_Tp>::type _Trr; |
| _Trr& t_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| _Trr* operator->() {return &t_;} |
| _LIBCPP_INLINE_VISIBILITY |
| explicit __rv(_Trr& __t) : t_(__t) {} |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename decay<_Tp>::type |
| __decay_copy(_Tp&& __t) |
| { |
| return _VSTD::forward<_Tp>(__t); |
| } |
| |
| #else |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename decay<_Tp>::type |
| __decay_copy(const _Tp& __t) |
| { |
| return _VSTD::forward<_Tp>(__t); |
| } |
| |
| #endif |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| #if __has_feature(cxx_reference_qualified_functions) |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &, true, false> |
| { |
| typedef _Class& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&, true, false> |
| { |
| typedef _Class const& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&, true, false> |
| { |
| typedef _Class volatile& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&, true, false> |
| { |
| typedef _Class const volatile& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &&, true, false> |
| { |
| typedef _Class&& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&&, true, false> |
| { |
| typedef _Class const&& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&&, true, false> |
| { |
| typedef _Class volatile&& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| template <class _Rp, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&&, true, false> |
| { |
| typedef _Class const volatile&& _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_Param...); |
| }; |
| |
| #endif // __has_feature(cxx_reference_qualified_functions) |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Rp, class _Class> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (); |
| }; |
| |
| template <class _Rp, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1, _P2); |
| }; |
| |
| template <class _Rp, class _Class> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)() const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (); |
| }; |
| |
| template <class _Rp, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1, _P2); |
| }; |
| |
| template <class _Rp, class _Class> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)() volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (); |
| }; |
| |
| template <class _Rp, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1, _P2); |
| }; |
| |
| template <class _Rp, class _Class> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)() const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (); |
| }; |
| |
| template <class _Rp, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1); |
| }; |
| |
| template <class _Rp, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _Rp _ReturnType; |
| typedef _Rp (_FnType) (_P0, _P1, _P2); |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Rp, class _Class> |
| struct __member_pointer_traits_imp<_Rp _Class::*, false, true> |
| { |
| typedef _Class _ClassType; |
| typedef _Rp _ReturnType; |
| }; |
| |
| template <class _MP> |
| struct __member_pointer_traits |
| : public __member_pointer_traits_imp<typename remove_cv<_MP>::type, |
| is_member_function_pointer<_MP>::value, |
| is_member_object_pointer<_MP>::value> |
| { |
| // typedef ... _ClassType; |
| // typedef ... _ReturnType; |
| // typedef ... _FnType; |
| }; |
| |
| // result_of |
| |
| template <class _Callable> class result_of; |
| |
| #ifdef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Fn, bool, bool> |
| class __result_of |
| { |
| }; |
| |
| template <class _Fn> |
| class __result_of<_Fn(), true, false> |
| { |
| public: |
| typedef decltype(declval<_Fn>()()) type; |
| }; |
| |
| template <class _Fn, class _A0> |
| class __result_of<_Fn(_A0), true, false> |
| { |
| public: |
| typedef decltype(declval<_Fn>()(declval<_A0>())) type; |
| }; |
| |
| template <class _Fn, class _A0, class _A1> |
| class __result_of<_Fn(_A0, _A1), true, false> |
| { |
| public: |
| typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>())) type; |
| }; |
| |
| template <class _Fn, class _A0, class _A1, class _A2> |
| class __result_of<_Fn(_A0, _A1, _A2), true, false> |
| { |
| public: |
| typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>(), declval<_A2>())) type; |
| }; |
| |
| template <class _MP, class _Tp, bool _IsMemberFunctionPtr> |
| struct __result_of_mp; |
| |
| // member function pointer |
| |
| template <class _MP, class _Tp> |
| struct __result_of_mp<_MP, _Tp, true> |
| : public common_type<typename __member_pointer_traits<_MP>::_ReturnType> |
| { |
| }; |
| |
| // member data pointer |
| |
| template <class _MP, class _Tp, bool> |
| struct __result_of_mdp; |
| |
| template <class _Rp, class _Class, class _Tp> |
| struct __result_of_mdp<_Rp _Class::*, _Tp, false> |
| { |
| typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _Rp>::type& type; |
| }; |
| |
| template <class _Rp, class _Class, class _Tp> |
| struct __result_of_mdp<_Rp _Class::*, _Tp, true> |
| { |
| typedef typename __apply_cv<_Tp, _Rp>::type& type; |
| }; |
| |
| template <class _Rp, class _Class, class _Tp> |
| struct __result_of_mp<_Rp _Class::*, _Tp, false> |
| : public __result_of_mdp<_Rp _Class::*, _Tp, |
| is_base_of<_Class, typename remove_reference<_Tp>::type>::value> |
| { |
| }; |
| |
| |
| |
| template <class _Fn, class _Tp> |
| class __result_of<_Fn(_Tp), false, true> // _Fn must be member pointer |
| : public __result_of_mp<typename remove_reference<_Fn>::type, |
| _Tp, |
| is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| { |
| }; |
| |
| template <class _Fn, class _Tp, class _A0> |
| class __result_of<_Fn(_Tp, _A0), false, true> // _Fn must be member pointer |
| : public __result_of_mp<typename remove_reference<_Fn>::type, |
| _Tp, |
| is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| { |
| }; |
| |
| template <class _Fn, class _Tp, class _A0, class _A1> |
| class __result_of<_Fn(_Tp, _A0, _A1), false, true> // _Fn must be member pointer |
| : public __result_of_mp<typename remove_reference<_Fn>::type, |
| _Tp, |
| is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| { |
| }; |
| |
| template <class _Fn, class _Tp, class _A0, class _A1, class _A2> |
| class __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true> // _Fn must be member pointer |
| : public __result_of_mp<typename remove_reference<_Fn>::type, |
| _Tp, |
| is_member_function_pointer<typename remove_reference<_Fn>::type>::value> |
| { |
| }; |
| |
| // result_of |
| |
| template <class _Fn> |
| class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn()> |
| : public __result_of<_Fn(), |
| is_class<typename remove_reference<_Fn>::type>::value || |
| is_function<typename remove_reference<_Fn>::type>::value, |
| is_member_pointer<typename remove_reference<_Fn>::type>::value |
| > |
| { |
| }; |
| |
| template <class _Fn, class _A0> |
| class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0)> |
| : public __result_of<_Fn(_A0), |
| is_class<typename remove_reference<_Fn>::type>::value || |
| is_function<typename remove_reference<_Fn>::type>::value, |
| is_member_pointer<typename remove_reference<_Fn>::type>::value |
| > |
| { |
| }; |
| |
| template <class _Fn, class _A0, class _A1> |
| class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1)> |
| : public __result_of<_Fn(_A0, _A1), |
| is_class<typename remove_reference<_Fn>::type>::value || |
| is_function<typename remove_reference<_Fn>::type>::value, |
| is_member_pointer<typename remove_reference<_Fn>::type>::value |
| > |
| { |
| }; |
| |
| template <class _Fn, class _A0, class _A1, class _A2> |
| class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1, _A2)> |
| : public __result_of<_Fn(_A0, _A1, _A2), |
| is_class<typename remove_reference<_Fn>::type>::value || |
| is_function<typename remove_reference<_Fn>::type>::value, |
| is_member_pointer<typename remove_reference<_Fn>::type>::value |
| > |
| { |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // template <class T, class... Args> struct is_constructible; |
| |
| namespace __is_construct |
| { |
| struct __nat {}; |
| } |
| |
| #if __has_feature(is_constructible) |
| |
| template <class _Tp, class ..._Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_constructible |
| : public integral_constant<bool, __is_constructible(_Tp, _Args...)> |
| {}; |
| |
| #else |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| // main is_constructible test |
| |
| template <class _Tp, class ..._Args> |
| typename __select_2nd<decltype(_VSTD::move(_Tp(_VSTD::declval<_Args>()...))), true_type>::type |
| __is_constructible_test(_Tp&&, _Args&& ...); |
| |
| template <class ..._Args> |
| false_type |
| __is_constructible_test(__any, _Args&& ...); |
| |
| template <bool, class _Tp, class... _Args> |
| struct __libcpp_is_constructible // false, _Tp is not a scalar |
| : public common_type |
| < |
| decltype(__is_constructible_test(declval<_Tp>(), declval<_Args>()...)) |
| >::type |
| {}; |
| |
| // function types are not constructible |
| |
| template <class _Rp, class... _A1, class... _A2> |
| struct __libcpp_is_constructible<false, _Rp(_A1...), _A2...> |
| : public false_type |
| {}; |
| |
| // handle scalars and reference types |
| |
| // Scalars are default constructible, references are not |
| |
| template <class _Tp> |
| struct __libcpp_is_constructible<true, _Tp> |
| : public is_scalar<_Tp> |
| {}; |
| |
| // Scalars and references are constructible from one arg if that arg is |
| // implicitly convertible to the scalar or reference. |
| |
| template <class _Tp> |
| struct __is_constructible_ref |
| { |
| true_type static __lxx(_Tp); |
| false_type static __lxx(...); |
| }; |
| |
| template <class _Tp, class _A0> |
| struct __libcpp_is_constructible<true, _Tp, _A0> |
| : public common_type |
| < |
| decltype(__is_constructible_ref<_Tp>::__lxx(declval<_A0>())) |
| >::type |
| {}; |
| |
| // Scalars and references are not constructible from multiple args. |
| |
| template <class _Tp, class _A0, class ..._Args> |
| struct __libcpp_is_constructible<true, _Tp, _A0, _Args...> |
| : public false_type |
| {}; |
| |
| // Treat scalars and reference types separately |
| |
| template <bool, class _Tp, class... _Args> |
| struct __is_constructible_void_check |
| : public __libcpp_is_constructible<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| _Tp, _Args...> |
| {}; |
| |
| // If any of T or Args is void, is_constructible should be false |
| |
| template <class _Tp, class... _Args> |
| struct __is_constructible_void_check<true, _Tp, _Args...> |
| : public false_type |
| {}; |
| |
| template <class ..._Args> struct __contains_void; |
| |
| template <> struct __contains_void<> : false_type {}; |
| |
| template <class _A0, class ..._Args> |
| struct __contains_void<_A0, _Args...> |
| { |
| static const bool value = is_void<_A0>::value || |
| __contains_void<_Args...>::value; |
| }; |
| |
| // is_constructible entry point |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_constructible |
| : public __is_constructible_void_check<__contains_void<_Tp, _Args...>::value |
| || is_abstract<_Tp>::value, |
| _Tp, _Args...> |
| {}; |
| |
| // Array types are default constructible if their element type |
| // is default constructible |
| |
| template <class _Ap, size_t _Np> |
| struct __libcpp_is_constructible<false, _Ap[_Np]> |
| : public is_constructible<typename remove_all_extents<_Ap>::type> |
| {}; |
| |
| // Otherwise array types are not constructible by this syntax |
| |
| template <class _Ap, size_t _Np, class ..._Args> |
| struct __libcpp_is_constructible<false, _Ap[_Np], _Args...> |
| : public false_type |
| {}; |
| |
| // Incomplete array types are not constructible |
| |
| template <class _Ap, class ..._Args> |
| struct __libcpp_is_constructible<false, _Ap[], _Args...> |
| : public false_type |
| {}; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| // template <class T> struct is_constructible0; |
| |
| // main is_constructible0 test |
| |
| template <class _Tp> |
| decltype((_Tp(), true_type())) |
| __is_constructible0_test(_Tp&); |
| |
| false_type |
| __is_constructible0_test(__any); |
| |
| template <class _Tp, class _A0> |
| decltype((_Tp(_VSTD::declval<_A0>()), true_type())) |
| __is_constructible1_test(_Tp&, _A0&); |
| |
| template <class _A0> |
| false_type |
| __is_constructible1_test(__any, _A0&); |
| |
| template <class _Tp, class _A0, class _A1> |
| decltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>()), true_type())) |
| __is_constructible2_test(_Tp&, _A0&, _A1&); |
| |
| template <class _A0, class _A1> |
| false_type |
| __is_constructible2_test(__any, _A0&, _A1&); |
| |
| template <bool, class _Tp> |
| struct __is_constructible0_imp // false, _Tp is not a scalar |
| : public common_type |
| < |
| decltype(__is_constructible0_test(declval<_Tp&>())) |
| >::type |
| {}; |
| |
| template <bool, class _Tp, class _A0> |
| struct __is_constructible1_imp // false, _Tp is not a scalar |
| : public common_type |
| < |
| decltype(__is_constructible1_test(declval<_Tp&>(), declval<_A0&>())) |
| >::type |
| {}; |
| |
| template <bool, class _Tp, class _A0, class _A1> |
| struct __is_constructible2_imp // false, _Tp is not a scalar |
| : public common_type |
| < |
| decltype(__is_constructible2_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>())) |
| >::type |
| {}; |
| |
| // handle scalars and reference types |
| |
| // Scalars are default constructible, references are not |
| |
| template <class _Tp> |
| struct __is_constructible0_imp<true, _Tp> |
| : public is_scalar<_Tp> |
| {}; |
| |
| template <class _Tp, class _A0> |
| struct __is_constructible1_imp<true, _Tp, _A0> |
| : public is_convertible<_A0, _Tp> |
| {}; |
| |
| template <class _Tp, class _A0, class _A1> |
| struct __is_constructible2_imp<true, _Tp, _A0, _A1> |
| : public false_type |
| {}; |
| |
| // Treat scalars and reference types separately |
| |
| template <bool, class _Tp> |
| struct __is_constructible0_void_check |
| : public __is_constructible0_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| _Tp> |
| {}; |
| |
| template <bool, class _Tp, class _A0> |
| struct __is_constructible1_void_check |
| : public __is_constructible1_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| _Tp, _A0> |
| {}; |
| |
| template <bool, class _Tp, class _A0, class _A1> |
| struct __is_constructible2_void_check |
| : public __is_constructible2_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value, |
| _Tp, _A0, _A1> |
| {}; |
| |
| // If any of T or Args is void, is_constructible should be false |
| |
| template <class _Tp> |
| struct __is_constructible0_void_check<true, _Tp> |
| : public false_type |
| {}; |
| |
| template <class _Tp, class _A0> |
| struct __is_constructible1_void_check<true, _Tp, _A0> |
| : public false_type |
| {}; |
| |
| template <class _Tp, class _A0, class _A1> |
| struct __is_constructible2_void_check<true, _Tp, _A0, _A1> |
| : public false_type |
| {}; |
| |
| // is_constructible entry point |
| |
| template <class _Tp, class _A0 = __is_construct::__nat, |
| class _A1 = __is_construct::__nat> |
| struct _LIBCPP_TYPE_VIS_ONLY is_constructible |
| : public __is_constructible2_void_check<is_void<_Tp>::value |
| || is_abstract<_Tp>::value |
| || is_function<_Tp>::value |
| || is_void<_A0>::value |
| || is_void<_A1>::value, |
| _Tp, _A0, _A1> |
| {}; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat> |
| : public __is_constructible0_void_check<is_void<_Tp>::value |
| || is_abstract<_Tp>::value |
| || is_function<_Tp>::value, |
| _Tp> |
| {}; |
| |
| template <class _Tp, class _A0> |
| struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, _A0, __is_construct::__nat> |
| : public __is_constructible1_void_check<is_void<_Tp>::value |
| || is_abstract<_Tp>::value |
| || is_function<_Tp>::value |
| || is_void<_A0>::value, |
| _Tp, _A0> |
| {}; |
| |
| // Array types are default constructible if their element type |
| // is default constructible |
| |
| template <class _Ap, size_t _Np> |
| struct __is_constructible0_imp<false, _Ap[_Np]> |
| : public is_constructible<typename remove_all_extents<_Ap>::type> |
| {}; |
| |
| template <class _Ap, size_t _Np, class _A0> |
| struct __is_constructible1_imp<false, _Ap[_Np], _A0> |
| : public false_type |
| {}; |
| |
| template <class _Ap, size_t _Np, class _A0, class _A1> |
| struct __is_constructible2_imp<false, _Ap[_Np], _A0, _A1> |
| : public false_type |
| {}; |
| |
| // Incomplete array types are not constructible |
| |
| template <class _Ap> |
| struct __is_constructible0_imp<false, _Ap[]> |
| : public false_type |
| {}; |
| |
| template <class _Ap, class _A0> |
| struct __is_constructible1_imp<false, _Ap[], _A0> |
| : public false_type |
| {}; |
| |
| template <class _Ap, class _A0, class _A1> |
| struct __is_constructible2_imp<false, _Ap[], _A0, _A1> |
| : public false_type |
| {}; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| #endif // __has_feature(is_constructible) |
| |
| // is_default_constructible |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_default_constructible |
| : public is_constructible<_Tp> |
| {}; |
| |
| // is_copy_constructible |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_copy_constructible |
| : public is_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> |
| {}; |
| |
| // is_move_constructible |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_move_constructible |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| : public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> |
| #else |
| : public is_copy_constructible<_Tp> |
| #endif |
| {}; |
| |
| // is_trivially_constructible |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| #if __has_feature(is_trivially_constructible) |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible |
| : integral_constant<bool, __is_trivially_constructible(_Tp, _Args...)> |
| { |
| }; |
| |
| #else // !__has_feature(is_trivially_constructible) |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp> |
| #if __has_feature(has_trivial_constructor) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_trivial_constructor(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&&> |
| #else |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp> |
| #endif |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&> |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&> |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| #endif // !__has_feature(is_trivially_constructible) |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp, class _A0 = __is_construct::__nat, |
| class _A1 = __is_construct::__nat> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible |
| : false_type |
| { |
| }; |
| |
| #if __has_feature(is_trivially_constructible) |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat, |
| __is_construct::__nat> |
| : integral_constant<bool, __is_trivially_constructible(_Tp)> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp, |
| __is_construct::__nat> |
| : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp)> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&, |
| __is_construct::__nat> |
| : integral_constant<bool, __is_trivially_constructible(_Tp, const _Tp&)> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&, |
| __is_construct::__nat> |
| : integral_constant<bool, __is_trivially_constructible(_Tp, _Tp&)> |
| { |
| }; |
| |
| #else // !__has_feature(is_trivially_constructible) |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat, |
| __is_construct::__nat> |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp, |
| __is_construct::__nat> |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&, |
| __is_construct::__nat> |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&, |
| __is_construct::__nat> |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| { |
| }; |
| |
| #endif // !__has_feature(is_trivially_constructible) |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // is_trivially_default_constructible |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_default_constructible |
| : public is_trivially_constructible<_Tp> |
| {}; |
| |
| // is_trivially_copy_constructible |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_constructible |
| : public is_trivially_constructible<_Tp, typename add_lvalue_reference<const _Tp>::type> |
| {}; |
| |
| // is_trivially_move_constructible |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_constructible |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| : public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> |
| #else |
| : public is_trivially_copy_constructible<_Tp> |
| #endif |
| {}; |
| |
| // is_trivially_assignable |
| |
| #if __has_feature(is_trivially_assignable) |
| |
| template <class _Tp, class _Arg> |
| struct is_trivially_assignable |
| : integral_constant<bool, __is_trivially_assignable(_Tp, _Arg)> |
| { |
| }; |
| |
| #else // !__has_feature(is_trivially_assignable) |
| |
| template <class _Tp, class _Arg> |
| struct is_trivially_assignable |
| : public false_type {}; |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, _Tp> |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, _Tp&> |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, const _Tp&> |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, _Tp&&> |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #endif // !__has_feature(is_trivially_assignable) |
| |
| // is_trivially_copy_assignable |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_assignable |
| : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, |
| const typename add_lvalue_reference<_Tp>::type> |
| {}; |
| |
| // is_trivially_move_assignable |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_assignable |
| : public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type, |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| typename add_rvalue_reference<_Tp>::type> |
| #else |
| typename add_lvalue_reference<_Tp>::type> |
| #endif |
| {}; |
| |
| // is_trivially_destructible |
| |
| #if __has_feature(has_trivial_destructor) || (_GNUC_VER >= 403) |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible |
| : public integral_constant<bool, __has_trivial_destructor(_Tp)> {}; |
| |
| #else |
| |
| template <class _Tp> struct __libcpp_trivial_destructor |
| : public integral_constant<bool, is_scalar<_Tp>::value || |
| is_reference<_Tp>::value> {}; |
| |
| template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible |
| : public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {}; |
| |
| #endif |
| |
| // is_nothrow_constructible |
| |
| #if 0 |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
| : public integral_constant<bool, __is_nothrow_constructible(_Tp(_Args...))> |
| { |
| }; |
| |
| #else |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| #if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L) |
| |
| template <bool, class _Tp, class... _Args> struct __libcpp_is_nothrow_constructible; |
| |
| template <class _Tp, class... _Args> |
| struct __libcpp_is_nothrow_constructible<true, _Tp, _Args...> |
| : public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))> |
| { |
| }; |
| |
| template <class _Tp, class... _Args> |
| struct __libcpp_is_nothrow_constructible<false, _Tp, _Args...> |
| : public false_type |
| { |
| }; |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
| : __libcpp_is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, _Tp, _Args...> |
| { |
| }; |
| |
| template <class _Tp, size_t _Ns> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp[_Ns]> |
| : __libcpp_is_nothrow_constructible<is_constructible<_Tp>::value, _Tp> |
| { |
| }; |
| |
| #else // __has_feature(cxx_noexcept) |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp> |
| #if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_constructor(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&&> |
| #else |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp> |
| #endif |
| #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&> |
| #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&> |
| #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| #endif // __has_feature(cxx_noexcept) |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp, class _A0 = __is_construct::__nat, |
| class _A1 = __is_construct::__nat> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, __is_construct::__nat, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_constructor(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| #endif // __has_feature(is_nothrow_constructible) |
| |
| // is_nothrow_default_constructible |
| |
| template <class _Tp> |
