generic-library/cxx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Implement the first part of P0006R0: Adopt Type Traits Variable Templates for C++17. Significantly augment the existing tests.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@251766 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2015-11-01 20:24:59 +00:00
parent 9d6ca4962b
commit 94611a888b
35 changed files with 2510 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

314
include/type_traits
View File

@@ -203,8 +203,148 @@ namespace std
using result_of_t = typename result_of<F(ArgTypes...)>::type; // C++14
template <class...>
using void_t = void;
} // C++17
using void_t = void; // C++17
// See C++14 20.10.4.1, primary type categories
template <class T> constexpr bool is_void_v
= is_void<T>::value; // C++17
template <class T> constexpr bool is_null_pointer_v
= is_null_pointer<T>::value; // C++17
template <class T> constexpr bool is_integral_v
= is_integral<T>::value; // C++17
template <class T> constexpr bool is_floating_point_v
= is_floating_point<T>::value; // C++17
template <class T> constexpr bool is_array_v
= is_array<T>::value; // C++17
template <class T> constexpr bool is_pointer_v
= is_pointer<T>::value; // C++17
template <class T> constexpr bool is_lvalue_reference_v
= is_lvalue_reference<T>::value; // C++17
template <class T> constexpr bool is_rvalue_reference_v
= is_rvalue_reference<T>::value; // C++17
template <class T> constexpr bool is_member_object_pointer_v
= is_member_object_pointer<T>::value; // C++17
template <class T> constexpr bool is_member_function_pointer_v
= is_member_function_pointer<T>::value; // C++17
template <class T> constexpr bool is_enum_v
= is_enum<T>::value; // C++17
template <class T> constexpr bool is_union_v
= is_union<T>::value; // C++17
template <class T> constexpr bool is_class_v
= is_class<T>::value; // C++17
template <class T> constexpr bool is_function_v
= is_function<T>::value; // C++17
// See C++14 20.10.4.2, composite type categories
template <class T> constexpr bool is_reference_v
= is_reference<T>::value; // C++17
template <class T> constexpr bool is_arithmetic_v
= is_arithmetic<T>::value; // C++17
template <class T> constexpr bool is_fundamental_v
= is_fundamental<T>::value; // C++17
template <class T> constexpr bool is_object_v
= is_object<T>::value; // C++17
template <class T> constexpr bool is_scalar_v
= is_scalar<T>::value; // C++17
template <class T> constexpr bool is_compound_v
= is_compound<T>::value; // C++17
template <class T> constexpr bool is_member_pointer_v
= is_member_pointer<T>::value; // C++17
// See C++14 20.10.4.3, type properties
template <class T> constexpr bool is_const_v
= is_const<T>::value; // C++17
template <class T> constexpr bool is_volatile_v
= is_volatile<T>::value; // C++17
template <class T> constexpr bool is_trivial_v
= is_trivial<T>::value; // C++17
template <class T> constexpr bool is_trivially_copyable_v
= is_trivially_copyable<T>::value; // C++17
template <class T> constexpr bool is_standard_layout_v
= is_standard_layout<T>::value; // C++17
template <class T> constexpr bool is_pod_v
= is_pod<T>::value; // C++17
template <class T> constexpr bool is_literal_type_v
= is_literal_type<T>::value; // C++17
template <class T> constexpr bool is_empty_v
= is_empty<T>::value; // C++17
template <class T> constexpr bool is_polymorphic_v
= is_polymorphic<T>::value; // C++17
template <class T> constexpr bool is_abstract_v
= is_abstract<T>::value; // C++17
template <class T> constexpr bool is_final_v
= is_final<T>::value; // C++17
template <class T> constexpr bool is_signed_v
= is_signed<T>::value; // C++17
template <class T> constexpr bool is_unsigned_v
= is_unsigned<T>::value; // C++17
template <class T, class... Args> constexpr bool is_constructible_v
= is_constructible<T, Args...>::value; // C++17
template <class T> constexpr bool is_default_constructible_v
= is_default_constructible<T>::value; // C++17
template <class T> constexpr bool is_copy_constructible_v
= is_copy_constructible<T>::value; // C++17
template <class T> constexpr bool is_move_constructible_v
= is_move_constructible<T>::value; // C++17
template <class T, class U> constexpr bool is_assignable_v
= is_assignable<T, U>::value; // C++17
template <class T> constexpr bool is_copy_assignable_v
= is_copy_assignable<T>::value; // C++17
template <class T> constexpr bool is_move_assignable_v
= is_move_assignable<T>::value; // C++17
template <class T> constexpr bool is_destructible_v
= is_destructible<T>::value; // C++17
template <class T, class... Args> constexpr bool is_trivially_constructible_v
= is_trivially_constructible<T, Args...>::value; // C++17
template <class T> constexpr bool is_trivially_default_constructible_v
= is_trivially_default_constructible<T>::value; // C++17
template <class T> constexpr bool is_trivially_copy_constructible_v
= is_trivially_copy_constructible<T>::value; // C++17
template <class T> constexpr bool is_trivially_move_constructible_v
= is_trivially_move_constructible<T>::value; // C++17
template <class T, class U> constexpr bool is_trivially_assignable_v
= is_trivially_assignable<T, U>::value; // C++17
template <class T> constexpr bool is_trivially_copy_assignable_v
= is_trivially_copy_assignable<T>::value; // C++17
template <class T> constexpr bool is_trivially_move_assignable_v
= is_trivially_move_assignable<T>::value; // C++17
template <class T> constexpr bool is_trivially_destructible_v
= is_trivially_destructible<T>::value; // C++17
template <class T, class... Args> constexpr bool is_nothrow_constructible_v
= is_nothrow_constructible<T, Args...>::value; // C++17
template <class T> constexpr bool is_nothrow_default_constructible_v
= is_nothrow_default_constructible<T>::value; // C++17
template <class T> constexpr bool is_nothrow_copy_constructible_v
= is_nothrow_copy_constructible<T>::value; // C++17
template <class T> constexpr bool is_nothrow_move_constructible_v
= is_nothrow_move_constructible<T>::value; // C++17
template <class T, class U> constexpr bool is_nothrow_assignable_v
= is_nothrow_assignable<T, U>::value; // C++17
template <class T> constexpr bool is_nothrow_copy_assignable_v
= is_nothrow_copy_assignable<T>::value; // C++17
template <class T> constexpr bool is_nothrow_move_assignable_v
= is_nothrow_move_assignable<T>::value; // C++17
template <class T> constexpr bool is_nothrow_destructible_v
= is_nothrow_destructible<T>::value; // C++17
template <class T> constexpr bool has_virtual_destructor_v
= has_virtual_destructor<T>::value; // C++17
// See C++14 20.10.5, type property queries
template <class T> constexpr size_t alignment_of_v
= alignment_of<T>::value; // C++17
template <class T> constexpr size_t rank_v
= rank<T>::value; // C++17
template <class T, unsigned I = 0> constexpr size_t extent_v
= extent<T, I>::value; // C++17
// See C++14 20.10.6, type relations
template <class T, class U> constexpr bool is_same_v
= is_same<T, U>::value; // C++17
template <class Base, class Derived> constexpr bool is_base_of_v
= is_base_of<Base, Derived>::value; // C++17
template <class From, class To> constexpr bool is_convertible_v
= is_convertible<From, To>::value; // C++17
}
*/
#include <__config>
@@ -329,11 +469,21 @@ struct __lazy_not : integral_constant<bool, !_Pred::type::value> {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const<_Tp const> : public true_type {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_const_v
= is_const<_Tp>::value;
#endif
// is_volatile
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile<_Tp volatile> : public true_type {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_volatile_v
= is_volatile<_Tp>::value;
#endif
// remove_const
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const {typedef _Tp type;};
@@ -366,6 +516,11 @@ template <> struct __libcpp_is_void<void> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_void
: public __libcpp_is_void<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_void_v
= is_void<_Tp>::value;
#endif
// __is_nullptr_t
template <class _Tp> struct __is_nullptr_t_impl : public false_type {};
@@ -377,6 +532,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __is_nullptr_t
#if _LIBCPP_STD_VER > 11
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_null_pointer
: public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_null_pointer_v
= is_null_pointer<_Tp>::value;
#endif
#endif
// is_integral
@@ -407,6 +567,11 @@ template <> struct __libcpp_is_integral<__uint128_t> : public tr
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_integral
: public __libcpp_is_integral<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_integral_v
= is_integral<_Tp>::value;
#endif
// is_floating_point
template <class _Tp> struct __libcpp_is_floating_point : public false_type {};
@@ -417,6 +582,11 @@ template <> struct __libcpp_is_floating_point<long double> : public tru
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_floating_point
: public __libcpp_is_floating_point<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_floating_point_v
= is_floating_point<_Tp>::value;
#endif
// is_array
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array
@@ -426,6 +596,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[]>
template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[_Np]>
: public true_type {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_array_v
= is_array<_Tp>::value;
#endif
// is_pointer
template <class _Tp> struct __libcpp_is_pointer : public false_type {};
@@ -434,6 +609,11 @@ template <class _Tp> struct __libcpp_is_pointer<_Tp*> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pointer
: public __libcpp_is_pointer<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_pointer_v
= is_pointer<_Tp>::value;
#endif
// is_reference
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference : public false_type {};
@@ -450,6 +630,16 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&> : public t
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&&> : public true_type {};
#endif
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_reference_v
= is_reference<_Tp>::value;
template <class _Tp> _LIBCPP_CONSTEXPR bool is_lvalue_reference_v
= is_lvalue_reference<_Tp>::value;
template <class _Tp> _LIBCPP_CONSTEXPR bool is_rvalue_reference_v
= is_rvalue_reference<_Tp>::value;
#endif
// is_union
#if __has_feature(is_union) || (_GNUC_VER >= 403)
@@ -465,6 +655,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union
#endif
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_union_v
= is_union<_Tp>::value;
#endif
// is_class
#if __has_feature(is_class) || (_GNUC_VER >= 403)
@@ -485,11 +680,21 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class
#endif
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_class_v
= is_class<_Tp>::value;
#endif
// is_same
template <class _Tp, class _Up> struct _LIBCPP_TYPE_VIS_ONLY is_same : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_same<_Tp, _Tp> : public true_type {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp, class _Up> _LIBCPP_CONSTEXPR bool is_same_v
= is_same<_Tp, _Up>::value;
#endif
// is_function
namespace __libcpp_is_function_imp
@@ -515,6 +720,11 @@ template <class _Tp> struct __libcpp_is_function<_Tp, true> : public false_type
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_function
: public __libcpp_is_function<_Tp> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_function_v
= is_function<_Tp>::value;
#endif
// is_member_function_pointer
// template <class _Tp> struct __libcpp_is_member_function_pointer : public false_type {};
@@ -537,6 +747,11 @@ struct __libcpp_is_member_function_pointer<_Ret _Class::*>
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_function_pointer
: public __libcpp_is_member_function_pointer<typename remove_cv<_Tp>::type>::type {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_function_pointer_v
= is_member_function_pointer<_Tp>::value;
#endif
// is_member_pointer
template <class _Tp> struct __libcpp_is_member_pointer : public false_type {};
@@ -545,12 +760,22 @@ template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> :
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_pointer
: public __libcpp_is_member_pointer<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_pointer_v
= is_member_pointer<_Tp>::value;
#endif
// is_member_object_pointer
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_object_pointer
: public integral_constant<bool, is_member_pointer<_Tp>::value &&
!is_member_function_pointer<_Tp>::value> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_member_object_pointer_v
= is_member_object_pointer<_Tp>::value;
#endif
// is_enum
#if __has_feature(is_enum) || (_GNUC_VER >= 403)
@@ -574,12 +799,22 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum
#endif
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_enum_v
= is_enum<_Tp>::value;
#endif
// is_arithmetic
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_arithmetic
: public integral_constant<bool, is_integral<_Tp>::value ||
is_floating_point<_Tp>::value> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_arithmetic_v
= is_arithmetic<_Tp>::value;
#endif
// is_fundamental
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_fundamental
@@ -587,6 +822,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_fundamental
__is_nullptr_t<_Tp>::value ||
is_arithmetic<_Tp>::value> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_fundamental_v
= is_fundamental<_Tp>::value;
#endif
// is_scalar
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_scalar
@@ -598,6 +838,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_scalar
template <> struct _LIBCPP_TYPE_VIS_ONLY is_scalar<nullptr_t> : public true_type {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_scalar_v
= is_scalar<_Tp>::value;
#endif
// is_object
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_object
@@ -606,11 +851,21 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_object
is_union<_Tp>::value ||
is_class<_Tp>::value > {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_object_v
= is_object<_Tp>::value;
#endif
// is_compound
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_compound
: public integral_constant<bool, !is_fundamental<_Tp>::value> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_compound_v
= is_compound<_Tp>::value;
#endif
// add_const
template <class _Tp, bool = is_reference<_Tp>::value ||
@@ -748,6 +1003,11 @@ template <class _Tp> struct __libcpp_is_signed<_Tp, false> : public false_type {
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_signed : public __libcpp_is_signed<_Tp> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_signed_v
= is_signed<_Tp>::value;
#endif
// is_unsigned
template <class _Tp, bool = is_integral<_Tp>::value>
@@ -763,6 +1023,11 @@ template <class _Tp> struct __libcpp_is_unsigned<_Tp, false> : public false_type
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_unsigned : public __libcpp_is_unsigned<_Tp> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_unsigned_v
= is_unsigned<_Tp>::value;
#endif
// rank
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank
@@ -851,6 +1116,11 @@ template <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {}
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_abstract : public __libcpp_abstract<_Tp> {};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_abstract_v
= is_abstract<_Tp>::value;
#endif
// is_final
#if defined(_LIBCPP_HAS_IS_FINAL)
@@ -866,6 +1136,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY
is_final : public integral_constant<bool, __is_final(_Tp)> {};
#endif
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_final_v
= is_final<_Tp>::value;
#endif
// is_base_of
#ifdef _LIBCPP_HAS_IS_BASE_OF
@@ -1059,6 +1334,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_empty : public __libcpp_emp
#endif // __has_feature(is_empty)
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_empty_v
= is_empty<_Tp>::value;
#endif
// is_polymorphic
#if __has_feature(is_polymorphic) || defined(_LIBCPP_MSVC)
@@ -1079,6 +1359,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic
#endif // __has_feature(is_polymorphic)
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_polymorphic_v
= is_polymorphic<_Tp>::value;
#endif
// has_virtual_destructor
#if __has_feature(has_virtual_destructor) || (_GNUC_VER >= 403)
@@ -3323,6 +3608,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod
#endif
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_pod_v
= is_pod<_Tp>::value;
#endif
// is_literal_type;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_literal_type
@@ -3334,6 +3624,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_literal_type
#endif
{};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_literal_type_v
= is_literal_type<_Tp>::value;
#endif
// is_standard_layout;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_standard_layout
@@ -3344,6 +3639,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_standard_layout
#endif
{};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_standard_layout_v
= is_standard_layout<_Tp>::value;
#endif
// is_trivially_copyable;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copyable
@@ -3356,6 +3656,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copyable
#endif
{};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivially_copyable_v
= is_trivially_copyable<_Tp>::value;
#endif
// is_trivial;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivial
@@ -3367,6 +3672,11 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivial
#endif
{};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _Tp> _LIBCPP_CONSTEXPR bool is_trivial_v
= is_trivial<_Tp>::value;
#endif
#ifndef _LIBCPP_HAS_NO_VARIADICS
// Check for complete types