| // -*- 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_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, 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 <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...)>; |
| |
| } // std |
| |
| */ |
| #include <__config> |
| #include <cstddef> |
| |
| #pragma GCC system_header |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <bool _B, class _If, class _Then> |
| struct _LIBCPP_VISIBLE conditional {typedef _If type;}; |
| template <class _If, class _Then> |
| struct _LIBCPP_VISIBLE conditional<false, _If, _Then> {typedef _Then type;}; |
| |
| template <bool, class _Tp = void> struct _LIBCPP_VISIBLE enable_if {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE enable_if<true, _Tp> {typedef _Tp type;}; |
| |
| struct __two {char _[2];}; |
| |
| // helper class: |
| |
| template <class _Tp, _Tp __v> |
| struct _LIBCPP_VISIBLE integral_constant |
| { |
| static constexpr _Tp value = __v; |
| typedef _Tp value_type; |
| typedef integral_constant type; |
| _LIBCPP_INLINE_VISIBILITY |
| #ifndef _LIBCPP_HAS_NO_CONSTEXPR |
| constexpr |
| #endif |
| operator value_type() |
| #ifdef _LIBCPP_HAS_NO_CONSTEXPR |
| const |
| #endif |
| {return value;} |
| }; |
| |
| template <class _Tp, _Tp __v> |
| constexpr _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_VISIBLE is_const : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_const<_Tp const> : public true_type {}; |
| |
| // is_volatile |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_volatile : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_volatile<_Tp volatile> : public true_type {}; |
| |
| // remove_const |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_const {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_const<const _Tp> {typedef _Tp type;}; |
| |
| // remove_volatile |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_volatile {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_volatile<volatile _Tp> {typedef _Tp type;}; |
| |
| // remove_cv |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_cv |
| {typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;}; |
| |
| // is_void |
| |
| template <class _Tp> struct __is_void : public false_type {}; |
| template <> struct __is_void<void> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_void |
| : public __is_void<typename remove_cv<_Tp>::type> {}; |
| |
| // __is_nullptr_t |
| |
| template <class _Tp> struct ____is_nullptr_t : public false_type {}; |
| template <> struct ____is_nullptr_t<nullptr_t> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE __is_nullptr_t |
| : public ____is_nullptr_t<typename remove_cv<_Tp>::type> {}; |
| |
| // is_integral |
| |
| template <class _Tp> struct __is_integral : public false_type {}; |
| template <> struct __is_integral<bool> : public true_type {}; |
| template <> struct __is_integral<char> : public true_type {}; |
| template <> struct __is_integral<signed char> : public true_type {}; |
| template <> struct __is_integral<unsigned char> : public true_type {}; |
| template <> struct __is_integral<wchar_t> : public true_type {}; |
| #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS |
| template <> struct __is_integral<char16_t> : public true_type {}; |
| template <> struct __is_integral<char32_t> : public true_type {}; |
| #endif // _LIBCPP_HAS_NO_UNICODE_CHARS |
| template <> struct __is_integral<short> : public true_type {}; |
| template <> struct __is_integral<unsigned short> : public true_type {}; |
| template <> struct __is_integral<int> : public true_type {}; |
| template <> struct __is_integral<unsigned int> : public true_type {}; |
| template <> struct __is_integral<long> : public true_type {}; |
| template <> struct __is_integral<unsigned long> : public true_type {}; |
| template <> struct __is_integral<long long> : public true_type {}; |
| template <> struct __is_integral<unsigned long long> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_integral |
| : public __is_integral<typename remove_cv<_Tp>::type> {}; |
| |
| // is_floating_point |
| |
| template <class _Tp> struct __is_floating_point : public false_type {}; |
| template <> struct __is_floating_point<float> : public true_type {}; |
| template <> struct __is_floating_point<double> : public true_type {}; |
| template <> struct __is_floating_point<long double> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_floating_point |
| : public __is_floating_point<typename remove_cv<_Tp>::type> {}; |
| |
| // is_array |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_array |
| : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_array<_Tp[]> |
| : public true_type {}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE is_array<_Tp[_Np]> |
| : public true_type {}; |
| |
| // is_pointer |
| |
| template <class _Tp> struct __is_pointer : public false_type {}; |
| template <class _Tp> struct __is_pointer<_Tp*> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_pointer |
| : public __is_pointer<typename remove_cv<_Tp>::type> {}; |
| |
| // is_reference |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_lvalue_reference : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_lvalue_reference<_Tp&> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_rvalue_reference : public false_type {}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> struct _LIBCPP_VISIBLE is_rvalue_reference<_Tp&&> : public true_type {}; |
| #endif |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_reference : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_reference<_Tp&> : public true_type {}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> struct _LIBCPP_VISIBLE is_reference<_Tp&&> : public true_type {}; |
| #endif |
| |
| #if defined(__clang__) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| #define _LIBCPP_HAS_TYPE_TRAITS |
| #endif |
| |
| // is_union |
| |
| #if __has_feature(is_union) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_union |
| : public integral_constant<bool, __is_union(_Tp)> {}; |
| |
| #else |
| |
| template <class _Tp> struct __libcpp_union : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_union |
| : public __libcpp_union<typename remove_cv<_Tp>::type> {}; |
| |
| #endif |
| |
| // is_class |
| |
| #if __has_feature(is_class) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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_VISIBLE 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_VISIBLE is_same : public false_type {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE is_same<_Tp, _Tp> : public true_type {}; |
| |
| // is_function |
| |
| namespace __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_same<_Tp, nullptr_t>::value > |
| struct __is_function |
| : public integral_constant<bool, sizeof(__is_function_imp::__test<_Tp>(__is_function_imp::__source<_Tp>())) == 1> |
| {}; |
| template <class _Tp> struct __is_function<_Tp, true> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_function |
| : public __is_function<_Tp> {}; |
| |
| // is_member_function_pointer |
| |
| template <class _Tp> struct __is_member_function_pointer : public false_type {}; |
| template <class _Tp, class _Up> struct __is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_member_function_pointer |
| : public __is_member_function_pointer<typename remove_cv<_Tp>::type> {}; |
| |
| // is_member_pointer |
| |
| template <class _Tp> struct __is_member_pointer : public false_type {}; |
| template <class _Tp, class _Up> struct __is_member_pointer<_Tp _Up::*> : public true_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_member_pointer |
| : public __is_member_pointer<typename remove_cv<_Tp>::type> {}; |
| |
| // is_member_object_pointer |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_enum |
| : public integral_constant<bool, __is_enum(_Tp)> {}; |
| |
| #else |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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_VISIBLE is_arithmetic |
| : public integral_constant<bool, is_integral<_Tp>::value || |
| is_floating_point<_Tp>::value> {}; |
| |
| // is_fundamental |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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_VISIBLE 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_VISIBLE is_scalar<nullptr_t> : public true_type {}; |
| |
| // is_object |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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_VISIBLE 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_VISIBLE add_const |
| {typedef typename __add_const<_Tp>::type type;}; |
| |
| // 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_VISIBLE add_volatile |
| {typedef typename __add_volatile<_Tp>::type type;}; |
| |
| // add_cv |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE add_cv |
| {typedef typename add_const<typename add_volatile<_Tp>::type>::type type;}; |
| |
| // remove_reference |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_reference {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_reference<_Tp&> {typedef _Tp type;}; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_reference<_Tp&&> {typedef _Tp type;}; |
| #endif |
| |
| // add_lvalue_reference |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE add_lvalue_reference {typedef _Tp& type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE add_lvalue_reference<_Tp&> {typedef _Tp& type;}; // for older compiler |
| template <> struct _LIBCPP_VISIBLE add_lvalue_reference<void> {typedef void type;}; |
| template <> struct _LIBCPP_VISIBLE add_lvalue_reference<const void> {typedef const void type;}; |
| template <> struct _LIBCPP_VISIBLE add_lvalue_reference<volatile void> {typedef volatile void type;}; |
| template <> struct _LIBCPP_VISIBLE add_lvalue_reference<const volatile void> {typedef const volatile void type;}; |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE add_rvalue_reference {typedef _Tp&& type;}; |
| template <> struct _LIBCPP_VISIBLE add_rvalue_reference<void> {typedef void type;}; |
| template <> struct _LIBCPP_VISIBLE add_rvalue_reference<const void> {typedef const void type;}; |
| template <> struct _LIBCPP_VISIBLE add_rvalue_reference<volatile void> {typedef volatile void type;}; |
| template <> struct _LIBCPP_VISIBLE add_rvalue_reference<const volatile void> {typedef const volatile void type;}; |
| |
| #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_VISIBLE remove_pointer {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp*> {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp* const> {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp* volatile> {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_pointer<_Tp* const volatile> {typedef _Tp type;}; |
| |
| // add_pointer |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE add_pointer |
| {typedef typename remove_reference<_Tp>::type* type;}; |
| |
| // is_signed |
| |
| template <class _Tp, bool = is_integral<_Tp>::value> |
| struct ___is_signed : public integral_constant<bool, _Tp(-1) < _Tp(0)> {}; |
| |
| template <class _Tp> |
| struct ___is_signed<_Tp, false> : public true_type {}; // floating point |
| |
| template <class _Tp, bool = is_arithmetic<_Tp>::value> |
| struct __is_signed : public ___is_signed<_Tp> {}; |
| |
| template <class _Tp> struct __is_signed<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_signed : public __is_signed<_Tp> {}; |
| |
| // is_unsigned |
| |
| template <class _Tp, bool = is_integral<_Tp>::value> |
| struct ___is_unsigned : public integral_constant<bool, _Tp(0) < _Tp(-1)> {}; |
| |
| template <class _Tp> |
| struct ___is_unsigned<_Tp, false> : public false_type {}; // floating point |
| |
| template <class _Tp, bool = is_arithmetic<_Tp>::value> |
| struct __is_unsigned : public ___is_unsigned<_Tp> {}; |
| |
| template <class _Tp> struct __is_unsigned<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_unsigned : public __is_unsigned<_Tp> {}; |
| |
| // rank |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE rank |
| : public integral_constant<size_t, 0> {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE rank<_Tp[]> |
| : public integral_constant<size_t, rank<_Tp>::value + 1> {}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE rank<_Tp[_Np]> |
| : public integral_constant<size_t, rank<_Tp>::value + 1> {}; |
| |
| // extent |
| |
| template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_VISIBLE extent |
| : public integral_constant<size_t, 0> {}; |
| template <class _Tp> struct _LIBCPP_VISIBLE extent<_Tp[], 0> |
| : public integral_constant<size_t, 0> {}; |
| template <class _Tp, unsigned _Ip> struct _LIBCPP_VISIBLE extent<_Tp[], _Ip> |
| : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE extent<_Tp[_Np], 0> |
| : public integral_constant<size_t, _Np> {}; |
| template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_VISIBLE extent<_Tp[_Np], _Ip> |
| : public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {}; |
| |
| // remove_extent |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_extent |
| {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_extent<_Tp[]> |
| {typedef _Tp type;}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE remove_extent<_Tp[_Np]> |
| {typedef _Tp type;}; |
| |
| // remove_all_extents |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_all_extents |
| {typedef _Tp type;}; |
| template <class _Tp> struct _LIBCPP_VISIBLE remove_all_extents<_Tp[]> |
| {typedef typename remove_all_extents<_Tp>::type type;}; |
| template <class _Tp, size_t _Np> struct _LIBCPP_VISIBLE remove_all_extents<_Tp[_Np]> |
| {typedef typename remove_all_extents<_Tp>::type type;}; |
| |
| // 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_VISIBLE is_abstract : public __libcpp_abstract<_Tp> {}; |
| |
| // is_convertible |
| |
| #if __has_feature(is_convertible_to) |
| |
| template <class _T1, class _T2> struct _LIBCPP_VISIBLE is_convertible |
| : public integral_constant<bool, __is_convertible_to(_T1, _T2)> {}; |
| |
| #else // __has_feature(is_convertible_to) |
| |
| namespace __is_convertible_imp |
| { |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Tp> char __test(const volatile typename remove_reference<_Tp>::type&&); |
| #else |
| template <class _Tp> char __test(_Tp); |
| #endif |
| 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, |
| sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1 |
| > |
| {}; |
| |
| 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*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_VISIBLE 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_base_of |
| |
| #if __has_feature(is_base_of) |
| |
| template <class _Bp, class _Dp> |
| struct _LIBCPP_VISIBLE is_base_of |
| : public integral_constant<bool, __is_base_of(_Bp, _Dp)> {}; |
| |
| #else // __has_feature(is_base_of) |
| |
| // (C) Copyright Rani Sharoni 2003. |
| // Use, modification and distribution are subject to the Boost Software License, |
| // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt). |
| // |
| // See http://www.boost.org/libs/type_traits for most recent version including documentation. |
| |
| template <class _Bp, class _Dp> |
| struct __is_base_of_tests |
| { |
| template <class _Tp> |
| static char __test(const volatile _Dp*, _Tp); |
| static __two __test(const volatile _Bp*, int); |
| }; |
| |
| template <class _Bp, class _Dp> |
| struct __is_base_of_imp |
| { |
| struct __host |
| { |
| operator const volatile _Bp*() const; |
| operator const volatile _Dp*(); |
| }; |
| |
| static const size_t __complete_check = sizeof(_Dp); |
| static const bool value = sizeof(__is_base_of_tests<_Bp, _Dp>::__test(__host(), 0)) == 1; |
| }; |
| |
| template <class _Bp, class _Dp, bool = is_class<_Bp>::value, |
| bool = is_class<_Dp>::value, |
| bool = is_same<_Bp, _Dp>::value> |
| struct __libcpp_base_of : public false_type {}; |
| |
| template <class _Bp, class _Dp> |
| struct __libcpp_base_of<_Bp, _Dp, true, true, true> : public true_type {}; |
| |
| template <class _Bp, class _Dp> |
| struct __libcpp_base_of<_Bp, _Dp, true, true, false> |
| : public integral_constant<bool, __is_base_of_imp<_Bp, _Dp>::value> {}; |
| |
| template <class _Bp, class _Dp> |
| struct _LIBCPP_VISIBLE is_base_of |
| : public __libcpp_base_of<typename remove_cv<_Bp>::type, typename remove_cv<_Dp>::type> |
| { |
| }; |
| |
| #endif // __has_feature(is_base_of) |
| |
| // is_empty |
| |
| template <class _Tp> |
| struct __is_empty1 |
| : public _Tp |
| { |
| double _; |
| }; |
| |
| struct __is_empty2 |
| { |
| double _; |
| }; |
| |
| 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_VISIBLE is_empty : public __libcpp_empty<_Tp> {}; |
| |
| // is_polymorphic |
| |
| template <class _Tp> struct __is_polymorphic1 : public _Tp {}; |
| template <class _Tp> struct __is_polymorphic2 : public _Tp {virtual ~__is_polymorphic2() throw();}; |
| |
| template <class _Tp, bool = is_class<_Tp>::value> |
| struct __libcpp_polymorphic |
| : public integral_constant<bool, sizeof(__is_polymorphic1<_Tp>) == sizeof(__is_polymorphic2<_Tp>)> {}; |
| |
| template <class _Tp> struct __libcpp_polymorphic<_Tp, false> : public false_type {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_polymorphic |
| : public __libcpp_polymorphic<_Tp> {}; |
| |
| // has_virtual_destructor |
| |
| #if __has_feature(has_virtual_destructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE has_virtual_destructor |
| : public integral_constant<bool, __has_virtual_destructor(_Tp)> {}; |
| |
| #else // _LIBCPP_HAS_TYPE_TRAITS |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE has_virtual_destructor |
| : public false_type {}; |
| |
| #endif // _LIBCPP_HAS_TYPE_TRAITS |
| |
| // alignment_of |
| |
| template <class _Tp> struct __alignment_of {_Tp _;}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE alignment_of |
| : public integral_constant<size_t, __alignof__(__alignment_of<typename remove_all_extents<_Tp>::type>)> {}; |
| |
| // 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 _;}; |
| struct __struct_double4 {double _[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, const size_t _Align = __find_max_align<__all_types, _Len>::value> |
| struct _LIBCPP_VISIBLE 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]; |
| }; |
| }; |
| |
| #define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \ |
| template <size_t _Len>\ |
| struct __attribute__ ((__visibility__("default"))) aligned_storage<_Len, n>\ |
| {\ |
| struct type\ |
| {\ |
| unsigned char _[_Len];\ |
| } __attribute__((__aligned__(n)));\ |
| } |
| |
| _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); |
| _CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000); |
| |
| #undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION |
| |
| // __promote |
| |
| template <class _A1, class _A2 = void, class _A3 = void, |
| bool = (is_arithmetic<_A1>::value || is_void<_A1>::value) && |
| (is_arithmetic<_A2>::value || is_void<_A2>::value) && |
| (is_arithmetic<_A3>::value || is_void<_A3>::value)> |
| class __promote {}; |
| |
| 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 __typeof__(__type1() + __type2() + __type3()) type; |
| }; |
| |
| 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 __typeof__(__type1() + __type2()) type; |
| }; |
| |
| template <class _A1> |
| class __promote<_A1, void, void, true> |
| { |
| public: |
| typedef typename conditional<is_arithmetic<_A1>::value, |
| typename conditional<is_integral<_A1>::value, double, _A1>::type, |
| void |
| >::type type; |
| }; |
| |
| #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, |
| __nat |
| > > > > > __signed_types; |
| |
| typedef |
| __type_list<unsigned char, |
| __type_list<unsigned short, |
| __type_list<unsigned int, |
| __type_list<unsigned long, |
| __type_list<unsigned long long, |
| __nat |
| > > > > > __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;}; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE make_signed |
| { |
| typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type; |
| }; |
| |
| 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;}; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE make_unsigned |
| { |
| typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type; |
| }; |
| |
| #ifdef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp, class _Up = void, class V = void> |
| struct _LIBCPP_VISIBLE common_type |
| { |
| public: |
| typedef typename common_type<typename common_type<_Tp, _Up>::type, V>::type type; |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE common_type<_Tp, void, void> |
| { |
| public: |
| typedef _Tp type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct _LIBCPP_VISIBLE 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 decltype(true ? __t() : __u()) type; |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class ..._Tp> struct common_type; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE common_type<_Tp> |
| { |
| typedef _Tp type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct _LIBCPP_VISIBLE common_type<_Tp, _Up> |
| { |
| private: |
| static _Tp&& __t(); |
| static _Up&& __u(); |
| static bool __f(); |
| public: |
| typedef decltype(__f() ? __t() : __u()) type; |
| }; |
| |
| template <class _Tp, class _Up, class ..._Vp> |
| struct _LIBCPP_VISIBLE common_type<_Tp, _Up, _Vp...> |
| { |
| typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp...>::type type; |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // is_assignable |
| |
| template <class _Tp, class _Arg> |
| decltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>(), true_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_VISIBLE 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_VISIBLE 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 |
| |
| template <class _Tp> |
| struct __destructible_test |
| { |
| _Tp __t; |
| }; |
| |
| template <class _Tp> |
| decltype((_VSTD::declval<__destructible_test<_Tp> >().~__destructible_test<_Tp>(), true_type())) |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| __is_destructible_test(_Tp&&); |
| #else |
| __is_destructible_test(_Tp&); |
| #endif |
| |
| false_type |
| __is_destructible_test(__any); |
| |
| template <class _Tp, bool = is_void<_Tp>::value || is_abstract<_Tp>::value> |
| struct __destructible_imp |
| : public common_type |
| < |
| decltype(__is_destructible_test(declval<_Tp>())) |
| >::type {}; |
| |
| template <class _Tp> |
| struct __destructible_imp<_Tp, true> |
| : public false_type {}; |
| |
| template <class _Tp> |
| struct is_destructible |
| : public __destructible_imp<_Tp> {}; |
| |
| // move |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| 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 |
| _Tp&& |
| forward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT |
| { |
| return static_cast<_Tp&&>(__t); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _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> |
| 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) {} |
| }; |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_convertible<_Tp, __rv<_Tp> >::value, |
| _Tp& |
| >::type |
| move(_Tp& __t) |
| { |
| return __t; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_convertible<_Tp, __rv<_Tp> >::value, |
| _Tp |
| >::type |
| move(_Tp& __t) |
| { |
| return _Tp(__rv<_Tp>(__t)); |
| } |
| |
| template <class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_convertible<_Tp, __rv<_Tp> >::value, |
| typename add_lvalue_reference<_Tp>::type |
| >::type |
| forward(_Up& __t) |
| { |
| return __t; |
| } |
| |
| template <class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_convertible<_Tp, __rv<_Tp> >::value, |
| typename add_lvalue_reference<_Tp>::type |
| >::type |
| forward(const _Up& __t) |
| { |
| return __t; |
| } |
| |
| template <class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_convertible<_Tp, __rv<_Tp> >::value, |
| _Tp |
| >::type |
| forward(_Up& __t) |
| { |
| return _Tp(__rv<_Tp>(__t)); |
| } |
| |
| template <class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| is_convertible<_Tp, __rv<_Tp> >::value, |
| _Tp |
| >::type |
| forward(const _Up& __t) |
| { |
| return _Tp(__rv<_Tp>(__t)); |
| } |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE 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; |
| }; |
| |
| #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 |
| |
| template <class _MP, bool _IsMemberFuctionPtr, bool _IsMemberObjectPtr> |
| struct __member_pointer_traits_imp |
| { |
| }; |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| #if __has_feature(cxx_reference_qualified_functions) |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) &, true, false> |
| { |
| typedef _Class& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const&, true, false> |
| { |
| typedef _Class const& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) volatile&, true, false> |
| { |
| typedef _Class volatile& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const volatile&, true, false> |
| { |
| typedef _Class const volatile& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) &&, true, false> |
| { |
| typedef _Class&& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const&&, true, false> |
| { |
| typedef _Class const&& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) volatile&&, true, false> |
| { |
| typedef _Class volatile&& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class ..._Param> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_Param...) const volatile&&, true, false> |
| { |
| typedef _Class const volatile&& _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| #endif // __has_feature(cxx_reference_qualified_functions) |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _R, class _Class> |
| struct __member_pointer_traits_imp<_R (_Class::*)(), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2), true, false> |
| { |
| typedef _Class _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class> |
| struct __member_pointer_traits_imp<_R (_Class::*)() const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2) const, true, false> |
| { |
| typedef _Class const _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class> |
| struct __member_pointer_traits_imp<_R (_Class::*)() volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2) volatile, true, false> |
| { |
| typedef _Class volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class> |
| struct __member_pointer_traits_imp<_R (_Class::*)() const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _R, class _Class, class _P0, class _P1, class _P2> |
| struct __member_pointer_traits_imp<_R (_Class::*)(_P0, _P1, _P2) const volatile, true, false> |
| { |
| typedef _Class const volatile _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _R, class _Class> |
| struct __member_pointer_traits_imp<_R _Class::*, false, true> |
| { |
| typedef _Class _ClassType; |
| typedef _R _ReturnType; |
| }; |
| |
| template <class _MP> |
| struct __member_pointer_traits |
| : public __member_pointer_traits_imp<_MP, |
| is_member_function_pointer<_MP>::value, |
| is_member_object_pointer<_MP>::value> |
| { |
| // typedef ... _ClassType; |
| // typedef ... _ReturnType; |
| }; |
| |
| // result_of |
| |
| template <class _Callable> class result_of; |
| |
| template <class _Fn, bool, bool> |
| class __result_of |
| { |
| }; |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Fn, class ..._ArgTypes> |
| class __result_of<_Fn(_ArgTypes...), true, false> |
| { |
| public: |
| typedef decltype(declval<_Fn>()(declval<_ArgTypes>()...)) 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 _R, class _Class, class _Tp> |
| struct __result_of_mdp<_R _Class::*, _Tp, false> |
| { |
| typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _R>::type&& type; |
| }; |
| |
| template <class _R, class _Class, class _Tp> |
| struct __result_of_mdp<_R _Class::*, _Tp, true> |
| { |
| typedef typename __apply_cv<_Tp, _R>::type&& type; |
| }; |
| |
| template <class _R, class _Class, class _Tp> |
| struct __result_of_mp<_R _Class::*, _Tp, false> |
| : public __result_of_mdp<_R _Class::*, _Tp, |
| is_base_of<_Class, typename remove_reference<_Tp>::type>::value> |
| { |
| }; |
| |
| template <class _Fn, class _Tp, class ..._ArgTypes> |
| class __result_of<_Fn(_Tp, _ArgTypes...), 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 ..._ArgTypes> |
| class _LIBCPP_VISIBLE result_of<_Fn(_ArgTypes...)> |
| : public __result_of<_Fn(_ArgTypes...), |
| 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 |
| > |
| { |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| 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 _R, class _Class, class _Tp> |
| struct __result_of_mdp<_R _Class::*, _Tp, false> |
| { |
| typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _R>::type& type; |
| }; |
| |
| template <class _R, class _Class, class _Tp> |
| struct __result_of_mdp<_R _Class::*, _Tp, true> |
| { |
| typedef typename __apply_cv<_Tp, _R>::type& type; |
| }; |
| |
| template <class _R, class _Class, class _Tp> |
| struct __result_of_mp<_R _Class::*, _Tp, false> |
| : public __result_of_mdp<_R _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_VISIBLE 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_VISIBLE 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_VISIBLE 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_VISIBLE 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 |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| // template <class T, class... Args> struct is_constructible; |
| |
| // main is_constructible test |
| |
| template <class _Tp, class ..._Args> |
| decltype(_VSTD::move(_Tp(_VSTD::declval<_Args>()...)), true_type()) |
| __is_constructible_test(_Tp&&, _Args&& ...); |
| |
| template <class ..._Args> |
| false_type |
| __is_constructible_test(__any, _Args&& ...); |
| |
| template <bool, class _Tp, class... _Args> |
| struct __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 _R, class... _A1, class... _A2> |
| struct __is_constructible<false, _R(_A1...), _A2...> |
| : public false_type |
| {}; |
| |
| // handle scalars and reference types |
| |
| // Scalars are default constructible, references are not |
| |
| template <class _Tp> |
| struct __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 __(_Tp); |
| false_type static __(...); |
| }; |
| |
| template <class _Tp, class _A0> |
| struct __is_constructible<true, _Tp, _A0> |
| : public common_type |
| < |
| decltype(__is_constructible_ref<_Tp>::__(declval<_A0>())) |
| >::type |
| {}; |
| |
| // Scalars and references are not constructible from multiple args. |
| |
| template <class _Tp, class _A0, class ..._Args> |
| struct __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 __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_VISIBLE 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 _A, size_t _N> |
| struct __is_constructible<false, _A[_N]> |
| : public is_constructible<typename remove_all_extents<_A>::type> |
| {}; |
| |
| // Otherwise array types are not constructible by this syntax |
| |
| template <class _A, size_t _N, class ..._Args> |
| struct __is_constructible<false, _A[_N], _Args...> |
| : public false_type |
| {}; |
| |
| // Incomplete array types are not constructible |
| |
| template <class _A, class ..._Args> |
| struct __is_constructible<false, _A[], _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 |
| |
| namespace __is_construct |
| { |
| |
| struct __nat {}; |
| |
| } |
| |
| template <class _Tp, class _A0 = __is_construct::__nat, |
| class _A1 = __is_construct::__nat> |
| struct _LIBCPP_VISIBLE 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_VISIBLE 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_VISIBLE 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 _A, size_t _N> |
| struct __is_constructible0_imp<false, _A[_N]> |
| : public is_constructible<typename remove_all_extents<_A>::type> |
| {}; |
| |
| template <class _A, size_t _N, class _A0> |
| struct __is_constructible1_imp<false, _A[_N], _A0> |
| : public false_type |
| {}; |
| |
| template <class _A, size_t _N, class _A0, class _A1> |
| struct __is_constructible2_imp<false, _A[_N], _A0, _A1> |
| : public false_type |
| {}; |
| |
| // Incomplete array types are not constructible |
| |
| template <class _A> |
| struct __is_constructible0_imp<false, _A[]> |
| : public false_type |
| {}; |
| |
| template <class _A, class _A0> |
| struct __is_constructible1_imp<false, _A[], _A0> |
| : public false_type |
| {}; |
| |
| template <class _A, class _A0, class _A1> |
| struct __is_constructible2_imp<false, _A[], _A0, _A1> |
| : public false_type |
| {}; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // is_default_constructible |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_default_constructible |
| : public is_constructible<_Tp> |
| {}; |
| |
| // is_copy_constructible |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_copy_constructible |
| : public is_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> |
| {}; |
| |
| // is_move_constructible |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE 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 |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_VISIBLE is_trivially_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp> |
| #if __has_feature(has_trivial_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : 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_VISIBLE is_trivially_constructible<_Tp, _Tp&&> |
| #else |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp> |
| #endif |
| #if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, const _Tp&> |
| #if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp&> |
| #if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp, class _A0 = __is_construct::__nat, |
| class _A1 = __is_construct::__nat> |
| struct _LIBCPP_VISIBLE is_trivially_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, __is_construct::__nat, |
| __is_construct::__nat> |
| #if __has_feature(has_trivial_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_constructor(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp, |
| __is_construct::__nat> |
| #if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, const _Tp&, |
| __is_construct::__nat> |
| #if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_trivially_constructible<_Tp, _Tp&, |
| __is_construct::__nat> |
| #if __has_feature(has_trivial_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // is_trivially_default_constructible |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_trivially_default_constructible |
| : public is_trivially_constructible<_Tp> |
| {}; |
| |
| // is_trivially_copy_constructible |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_trivially_copy_constructible |
| : public is_trivially_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> |
| {}; |
| |
| // is_trivially_move_constructible |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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 |
| |
| template <class _Tp, class _Arg> |
| struct is_trivially_assignable |
| : public false_type {}; |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, _Tp> |
| #if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, _Tp&> |
| #if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, const _Tp&> |
| #if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| struct is_trivially_assignable<_Tp&, _Tp&&> |
| #if __has_feature(has_trivial_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_trivial_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| // is_trivially_copy_assignable |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE 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_VISIBLE 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__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_trivially_destructible |
| : public integral_constant<bool, __has_trivial_destructor(_Tp)> {}; |
| |
| #else // _LIBCPP_HAS_TYPE_TRAITS |
| |
| template <class _Tp> struct __libcpp_trivial_destructor |
| : public integral_constant<bool, is_scalar<_Tp>::value || |
| is_reference<_Tp>::value> {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_trivially_destructible |
| : public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {}; |
| |
| #endif // _LIBCPP_HAS_TYPE_TRAITS |
| |
| // is_nothrow_constructible |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| #if __has_feature(cxx_noexcept) |
| |
| template <bool, class _Tp, class... _Args> struct __is_nothrow_constructible; |
| |
| template <class _Tp, class... _Args> |
| struct __is_nothrow_constructible<true, _Tp, _Args...> |
| : public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))> |
| { |
| }; |
| |
| template <class _Tp, class... _Args> |
| struct __is_nothrow_constructible<false, _Tp, _Args...> |
| : public false_type |
| { |
| }; |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible |
| : __is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, _Tp, _Args...> |
| { |
| }; |
| |
| template <class _Tp, size_t _Ns> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp[_Ns]> |
| : __is_nothrow_constructible<is_constructible<_Tp>::value, _Tp> |
| { |
| }; |
| |
| #else // __has_feature(cxx_noexcept) |
| |
| template <class _Tp, class... _Args> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp> |
| #if __has_feature(has_nothrow_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : 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_VISIBLE is_nothrow_constructible<_Tp, _Tp&&> |
| #else |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp> |
| #endif |
| #if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, const _Tp&> |
| #if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp&> |
| #if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : 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_VISIBLE is_nothrow_constructible |
| : false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, __is_construct::__nat, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_constructor) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_constructor(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, const _Tp&, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_constructible<_Tp, _Tp&, |
| __is_construct::__nat> |
| #if __has_feature(has_nothrow_copy) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_copy(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> |
| #endif |
| { |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| // is_nothrow_default_constructible |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_default_constructible |
| : public is_nothrow_constructible<_Tp> |
| {}; |
| |
| // is_nothrow_copy_constructible |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_copy_constructible |
| : public is_nothrow_constructible<_Tp, const typename add_lvalue_reference<_Tp>::type> |
| {}; |
| |
| // is_nothrow_move_constructible |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_move_constructible |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| : public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type> |
| #else |
| : public is_nothrow_copy_constructible<_Tp> |
| #endif |
| {}; |
| |
| // is_nothrow_assignable |
| |
| #if __has_feature(cxx_noexcept) |
| |
| template <bool, class _Tp, class _Arg> struct __is_nothrow_assignable; |
| |
| template <class _Tp, class _Arg> |
| struct __is_nothrow_assignable<false, _Tp, _Arg> |
| : public false_type |
| { |
| }; |
| |
| template <class _Tp, class _Arg> |
| struct __is_nothrow_assignable<true, _Tp, _Arg> |
| : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>()) > |
| { |
| }; |
| |
| template <class _Tp, class _Arg> |
| struct _LIBCPP_VISIBLE is_nothrow_assignable |
| : public __is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg> |
| { |
| }; |
| |
| #else // __has_feature(cxx_noexcept) |
| |
| template <class _Tp, class _Arg> |
| struct _LIBCPP_VISIBLE is_nothrow_assignable |
| : public false_type {}; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_assignable<_Tp&, _Tp> |
| #if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_assignable<_Tp&, _Tp&> |
| #if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_assignable<_Tp&, const _Tp&> |
| #if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| struct is_nothrow_assignable<_Tp&, _Tp&&> |
| #if __has_feature(has_nothrow_assign) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| : integral_constant<bool, __has_nothrow_assign(_Tp)> {}; |
| #else |
| : integral_constant<bool, is_scalar<_Tp>::value> {}; |
| #endif |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #endif // __has_feature(cxx_noexcept) |
| |
| // is_nothrow_copy_assignable |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_copy_assignable |
| : public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type, |
| const typename add_lvalue_reference<_Tp>::type> |
| {}; |
| |
| // is_nothrow_move_assignable |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_move_assignable |
| : public is_nothrow_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_nothrow_destructible |
| |
| #if __has_feature(cxx_noexcept) |
| |
| template <bool, class _Tp> struct __is_nothrow_destructible; |
| |
| template <class _Tp> |
| struct __is_nothrow_destructible<false, _Tp> |
| : public false_type |
| { |
| }; |
| |
| template <class _Tp> |
| struct __is_nothrow_destructible<true, _Tp> |
| : public integral_constant<bool, noexcept(_VSTD::declval<_Tp>().~_Tp()) > |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_destructible |
| : public __is_nothrow_destructible<is_destructible<_Tp>::value, _Tp> |
| { |
| }; |
| |
| template <class _Tp, size_t _Ns> |
| struct _LIBCPP_VISIBLE is_nothrow_destructible<_Tp[_Ns]> |
| : public is_nothrow_destructible<_Tp> |
| { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_destructible<_Tp&> |
| : public true_type |
| { |
| }; |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp> |
| struct _LIBCPP_VISIBLE is_nothrow_destructible<_Tp&&> |
| : public true_type |
| { |
| }; |
| |
| #endif |
| |
| #else |
| |
| template <class _Tp> struct __libcpp_nothrow_destructor |
| : public integral_constant<bool, is_scalar<_Tp>::value || |
| is_reference<_Tp>::value> {}; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_nothrow_destructible |
| : public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {}; |
| |
| #endif |
| |
| // is_pod |
| |
| #if __has_feature(is_pod) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_pod |
| : public integral_constant<bool, __is_pod(_Tp)> {}; |
| |
| #else // _LIBCPP_HAS_TYPE_TRAITS |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_pod |
| : public integral_constant<bool, is_trivially_default_constructible<_Tp>::value && |
| is_trivially_copy_constructible<_Tp>::value && |
| is_trivially_copy_assignable<_Tp>::value && |
| is_trivially_destructible<_Tp>::value> {}; |
| |
| #endif // _LIBCPP_HAS_TYPE_TRAITS |
| |
| // is_literal_type; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_literal_type |
| #if __has_feature(is_literal) |
| : public integral_constant<bool, __is_literal(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value || |
| is_reference<typename remove_all_extents<_Tp>::type>::value> |
| #endif |
| {}; |
| |
| // is_standard_layout; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_standard_layout |
| #if __has_feature(is_standard_layout) |
| : public integral_constant<bool, __is_standard_layout(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> |
| #endif |
| {}; |
| |
| // is_trivially_copyable; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_trivially_copyable |
| #if __has_feature(is_trivially_copyable) |
| : public integral_constant<bool, __is_trivially_copyable(_Tp)> |
| #else |
| : integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value> |
| #endif |
| {}; |
| |
| // is_trivial; |
| |
| template <class _Tp> struct _LIBCPP_VISIBLE is_trivial |
| #if __has_feature(is_trivial) |
| : public integral_constant<bool, __is_trivial(_Tp)> |
| #else |
| : integral_constant<bool, is_trivially_copyable<_Tp>::value && |
| is_trivially_default_constructible<_Tp>::value> |
| #endif |
| {}; |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| // Check for complete types |
| |
| template <class ..._T> struct __check_complete; |
| |
| template <> |
| struct __check_complete<> |
| { |
| }; |
| |
| template <class _H, class _T0, class ..._T> |
| struct __check_complete<_H, _T0, _T...> |
| : private __check_complete<_H>, |
| private __check_complete<_T0, _T...> |
| { |
| }; |
| |
| template <class _H> |
| struct __check_complete<_H, _H> |
| : private __check_complete<_H> |
| { |
| }; |
| |
| template <class _T> |
| struct __check_complete<_T> |
| { |
| static_assert(sizeof(_T) > 0, "Type must be complete."); |
| }; |
| |
| template <class _T> |
| struct __check_complete<_T&> |
| : private __check_complete<_T> |
| { |
| }; |
| |
| template <class _T> |
| struct __check_complete<_T&&> |
| : private __check_complete<_T> |
| { |
| }; |
| |
| template <class _R, |