// Variable Templates For Type Traits -*- C++ -*- // Copyright (C) 2014-2018 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. /** @file experimental/type_traits * This is a TS C++ Library header. */ // // N3932 Variable Templates For Type Traits (Revision 1) // #ifndef _GLIBCXX_EXPERIMENTAL_TYPE_TRAITS #define _GLIBCXX_EXPERIMENTAL_TYPE_TRAITS 1 #pragma GCC system_header #if __cplusplus >= 201402L #include <type_traits> #include <experimental/bits/lfts_config.h> namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION namespace experimental { inline namespace fundamentals_v1 { #define __cpp_lib_experimental_type_trait_variable_templates 201402 // See C++14 §20.10.4.1, primary type categories template <typename _Tp> constexpr bool is_void_v = is_void<_Tp>::value; template <typename _Tp> constexpr bool is_null_pointer_v = is_null_pointer<_Tp>::value; template <typename _Tp> constexpr bool is_integral_v = is_integral<_Tp>::value; template <typename _Tp> constexpr bool is_floating_point_v = is_floating_point<_Tp>::value; template <typename _Tp> constexpr bool is_array_v = is_array<_Tp>::value; template <typename _Tp> constexpr bool is_pointer_v = is_pointer<_Tp>::value; template <typename _Tp> constexpr bool is_lvalue_reference_v = is_lvalue_reference<_Tp>::value; template <typename _Tp> constexpr bool is_rvalue_reference_v = is_rvalue_reference<_Tp>::value; template <typename _Tp> constexpr bool is_member_object_pointer_v = is_member_object_pointer<_Tp>::value; template <typename _Tp> constexpr bool is_member_function_pointer_v = is_member_function_pointer<_Tp>::value; template <typename _Tp> constexpr bool is_enum_v = is_enum<_Tp>::value; template <typename _Tp> constexpr bool is_union_v = is_union<_Tp>::value; template <typename _Tp> constexpr bool is_class_v = is_class<_Tp>::value; template <typename _Tp> constexpr bool is_function_v = is_function<_Tp>::value; // See C++14 §20.10.4.2, composite type categories template <typename _Tp> constexpr bool is_reference_v = is_reference<_Tp>::value; template <typename _Tp> constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; template <typename _Tp> constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; template <typename _Tp> constexpr bool is_object_v = is_object<_Tp>::value; template <typename _Tp> constexpr bool is_scalar_v = is_scalar<_Tp>::value; template <typename _Tp> constexpr bool is_compound_v = is_compound<_Tp>::value; template <typename _Tp> constexpr bool is_member_pointer_v = is_member_pointer<_Tp>::value; // See C++14 §20.10.4.3, type properties template <typename _Tp> constexpr bool is_const_v = is_const<_Tp>::value; template <typename _Tp> constexpr bool is_volatile_v = is_volatile<_Tp>::value; template <typename _Tp> constexpr bool is_trivial_v = is_trivial<_Tp>::value; template <typename _Tp> constexpr bool is_trivially_copyable_v = is_trivially_copyable<_Tp>::value; template <typename _Tp> constexpr bool is_standard_layout_v = is_standard_layout<_Tp>::value; template <typename _Tp> constexpr bool is_pod_v = is_pod<_Tp>::value; template <typename _Tp> constexpr bool is_literal_type_v = is_literal_type<_Tp>::value; template <typename _Tp> constexpr bool is_empty_v = is_empty<_Tp>::value; template <typename _Tp> constexpr bool is_polymorphic_v = is_polymorphic<_Tp>::value; template <typename _Tp> constexpr bool is_abstract_v = is_abstract<_Tp>::value; template <typename _Tp> constexpr bool is_final_v = is_final<_Tp>::value; template <typename _Tp> constexpr bool is_signed_v = is_signed<_Tp>::value; template <typename _Tp> constexpr bool is_unsigned_v = is_unsigned<_Tp>::value; template <typename _Tp, typename... _Args> constexpr bool is_constructible_v = is_constructible<_Tp, _Args...>::value; template <typename _Tp> constexpr bool is_default_constructible_v = is_default_constructible<_Tp>::value; template <typename _Tp> constexpr bool is_copy_constructible_v = is_copy_constructible<_Tp>::value; template <typename _Tp> constexpr bool is_move_constructible_v = is_move_constructible<_Tp>::value; template <typename _Tp, typename _Up> constexpr bool is_assignable_v = is_assignable<_Tp, _Up>::value; template <typename _Tp> constexpr bool is_copy_assignable_v = is_copy_assignable<_Tp>::value; template <typename _Tp> constexpr bool is_move_assignable_v = is_move_assignable<_Tp>::value; template <typename _Tp> constexpr bool is_destructible_v = is_destructible<_Tp>::value; template <typename _Tp, typename... _Args> constexpr bool is_trivially_constructible_v = is_trivially_constructible<_Tp, _Args...>::value; template <typename _Tp> constexpr bool is_trivially_default_constructible_v = is_trivially_default_constructible<_Tp>::value; template <typename _Tp> constexpr bool is_trivially_copy_constructible_v = is_trivially_copy_constructible<_Tp>::value; template <typename _Tp> constexpr bool is_trivially_move_constructible_v = is_trivially_move_constructible<_Tp>::value; template <typename _Tp, typename _Up> constexpr bool is_trivially_assignable_v = is_trivially_assignable<_Tp, _Up>::value; template <typename _Tp> constexpr bool is_trivially_copy_assignable_v = is_trivially_copy_assignable<_Tp>::value; template <typename _Tp> constexpr bool is_trivially_move_assignable_v = is_trivially_move_assignable<_Tp>::value; template <typename _Tp> constexpr bool is_trivially_destructible_v = is_trivially_destructible<_Tp>::value; template <typename _Tp, typename... _Args> constexpr bool is_nothrow_constructible_v = is_nothrow_constructible<_Tp, _Args...>::value; template <typename _Tp> constexpr bool is_nothrow_default_constructible_v = is_nothrow_default_constructible<_Tp>::value; template <typename _Tp> constexpr bool is_nothrow_copy_constructible_v = is_nothrow_copy_constructible<_Tp>::value; template <typename _Tp> constexpr bool is_nothrow_move_constructible_v = is_nothrow_move_constructible<_Tp>::value; template <typename _Tp, typename _Up> constexpr bool is_nothrow_assignable_v = is_nothrow_assignable<_Tp, _Up>::value; template <typename _Tp> constexpr bool is_nothrow_copy_assignable_v = is_nothrow_copy_assignable<_Tp>::value; template <typename _Tp> constexpr bool is_nothrow_move_assignable_v = is_nothrow_move_assignable<_Tp>::value; template <typename _Tp> constexpr bool is_nothrow_destructible_v = is_nothrow_destructible<_Tp>::value; template <typename _Tp> constexpr bool has_virtual_destructor_v = has_virtual_destructor<_Tp>::value; // See C++14 §20.10.5, type property queries template <typename _Tp> constexpr size_t alignment_of_v = alignment_of<_Tp>::value; template <typename _Tp> constexpr size_t rank_v = rank<_Tp>::value; template <typename _Tp, unsigned _Idx = 0> constexpr size_t extent_v = extent<_Tp, _Idx>::value; // See C++14 §20.10.6, type relations template <typename _Tp, typename _Up> constexpr bool is_same_v = is_same<_Tp, _Up>::value; template <typename _Base, typename _Derived> constexpr bool is_base_of_v = is_base_of<_Base, _Derived>::value; template <typename _From, typename _To> constexpr bool is_convertible_v = is_convertible<_From, _To>::value; // 3.3.2, Other type transformations // invocation_type (still unimplemented) // raw_invocation_type (still unimplemented) // invocation_type_t (still unimplemented) // raw_invocation_type_t (still unimplemented) } // namespace fundamentals_v1 inline namespace fundamentals_v2 { #define __cpp_lib_experimental_detect 201505 // [meta.detect] template<typename...> using void_t = void; struct nonesuch { nonesuch() = delete; ~nonesuch() = delete; nonesuch(nonesuch const&) = delete; void operator=(nonesuch const&) = delete; }; template<template<typename...> class _Op, typename... _Args> using is_detected = typename std::__detector<nonesuch, void, _Op, _Args...>::value_t; template<template<typename...> class _Op, typename... _Args> constexpr bool is_detected_v = is_detected<_Op, _Args...>::value; template<template<typename...> class _Op, typename... _Args> using detected_t = typename std::__detector<nonesuch, void, _Op, _Args...>::type; template<typename _Default, template<typename...> class _Op, typename... _Args> using detected_or = std::__detected_or<_Default, _Op, _Args...>; template<typename _Default, template<typename...> class _Op, typename... _Args> using detected_or_t = typename detected_or<_Default, _Op, _Args...>::type; template<typename _Expected, template<typename...> class _Op, typename... _Args> using is_detected_exact = is_same<_Expected, detected_t<_Op, _Args...>>; template<typename _Expected, template<typename...> class _Op, typename... _Args> constexpr bool is_detected_exact_v = is_detected_exact<_Expected, _Op, _Args...>::value; template<typename _To, template<typename...> class _Op, typename... _Args> using is_detected_convertible = is_convertible<detected_t<_Op, _Args...>, _To>; template<typename _To, template<typename...> class _Op, typename... _Args> constexpr bool is_detected_convertible_v = is_detected_convertible<_To, _Op, _Args...>::value; #define __cpp_lib_experimental_logical_traits 201511 template<typename... _Bn> struct conjunction : __and_<_Bn...> { }; template<typename... _Bn> struct disjunction : __or_<_Bn...> { }; template<typename _Pp> struct negation : __not_<_Pp> { }; template<typename... _Bn> constexpr bool conjunction_v = conjunction<_Bn...>::value; template<typename... _Bn> constexpr bool disjunction_v = disjunction<_Bn...>::value; template<typename _Pp> constexpr bool negation_v = negation<_Pp>::value; } // namespace fundamentals_v2 } // namespace experimental _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #endif // __cplusplus <= 201103L #endif // _GLIBCXX_EXPERIMENTAL_TYPE_TRAITS