| // { dg-additional-options "-Wno-deprecated" { target c++2a } } |
| // { dg-do compile { target c++17 } } |
| |
| // Copyright (C) 2014-2021 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. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| #include <type_traits> |
| |
| using namespace std; |
| |
| // These tests are rather simple, the front-end tests already test |
| // variable templates, and the library tests for the underlying |
| // traits are more elaborate. These are just simple sanity tests. |
| |
| static_assert(is_void_v<void> && is_void<void>::value, ""); |
| static_assert(!is_void_v<int> && !is_void<int>::value, ""); |
| |
| static_assert(is_null_pointer_v<nullptr_t> |
| && is_null_pointer<nullptr_t>::value, ""); |
| static_assert(!is_null_pointer_v<void*> |
| && !is_null_pointer<void*>::value, ""); |
| |
| static_assert(is_integral_v<int> && is_integral<int>::value, ""); |
| static_assert(!is_integral_v<int*> && !is_integral<int*>::value, ""); |
| |
| static_assert(is_floating_point_v<float> |
| && is_floating_point<float>::value, ""); |
| static_assert(!is_floating_point_v<int> |
| && !is_floating_point<int>::value, ""); |
| |
| static_assert(is_array_v<char[42]> && is_array<char[42]>::value, ""); |
| static_assert(!is_array_v<char*> && !is_array<char*>::value, ""); |
| |
| static_assert(is_pointer_v<int*> && is_pointer<int*>::value, ""); |
| static_assert(!is_pointer_v<int> && !is_pointer<int>::value, ""); |
| |
| static_assert(is_lvalue_reference_v<int&> |
| && is_lvalue_reference<int&>::value, ""); |
| static_assert(!is_lvalue_reference_v<int> |
| && !is_lvalue_reference<int>::value, ""); |
| |
| static_assert(is_rvalue_reference_v<int&&> |
| && is_rvalue_reference<int&&>::value, ""); |
| static_assert(!is_rvalue_reference_v<int> |
| && !is_rvalue_reference<int>::value, ""); |
| |
| struct EmptyFinal final {}; |
| |
| static_assert(is_member_object_pointer_v<int (EmptyFinal::*)> |
| && is_member_object_pointer<int (EmptyFinal::*)>::value, ""); |
| static_assert(!is_member_object_pointer_v<void*> |
| && !is_member_object_pointer<void*>::value, ""); |
| |
| static_assert(is_member_function_pointer_v<int (EmptyFinal::*)()> |
| && is_member_function_pointer<int (EmptyFinal::*)()>::value, ""); |
| static_assert(!is_member_function_pointer_v<void*> |
| && !is_member_function_pointer<void*>::value, ""); |
| |
| enum Enum {}; |
| |
| static_assert(is_enum_v<Enum> && is_enum<Enum>::value, ""); |
| static_assert(!is_enum_v<int> && !is_enum<int>::value, ""); |
| |
| union Union; |
| |
| static_assert(is_union_v<Union> && is_union<Union>::value, ""); |
| static_assert(!is_union_v<int> && !is_union<int>::value, ""); |
| |
| static_assert(is_class_v<EmptyFinal> && is_class<EmptyFinal>::value, ""); |
| static_assert(!is_class_v<int> && !is_class<int>::value, ""); |
| |
| static_assert(is_function_v<void()> && is_function<void()>::value, ""); |
| static_assert(!is_function_v<void(*)()> && !is_function<void(*)()>::value, ""); |
| |
| static_assert(is_reference_v<int&> && is_reference<int&>::value, ""); |
| static_assert(!is_reference_v<int> && !is_reference<int>::value, ""); |
| |
| static_assert(is_arithmetic_v<int> && is_arithmetic<int>::value, ""); |
| static_assert(!is_arithmetic_v<void*> && !is_arithmetic<void*>::value, ""); |
| |
| static_assert(is_fundamental_v<int> && is_fundamental<int>::value, ""); |
| static_assert(!is_fundamental_v<EmptyFinal> |
| && !is_fundamental<EmptyFinal>::value, ""); |
| |
| static_assert(is_object_v<int> && is_object<int>::value, ""); |
| static_assert(!is_object_v<int&> && !is_object<int&>::value, ""); |
| |
| static_assert(is_scalar_v<int> && is_scalar<int>::value, ""); |
| static_assert(!is_scalar_v<int&> && !is_scalar<int&>::value, ""); |
| |
| static_assert(is_compound_v<EmptyFinal> |
| && is_compound<EmptyFinal>::value, ""); |
| static_assert(!is_compound_v<int> && !is_compound<int>::value, ""); |
| |
| static_assert(is_member_pointer_v<int (EmptyFinal::*)> |
| && is_member_pointer<int (EmptyFinal::*)>::value, ""); |
| static_assert(!is_member_pointer_v<void*> |
| && !is_member_pointer<void*>::value, ""); |
| |
| static_assert(is_const_v<const int> && is_const<const int>::value, ""); |
| static_assert(!is_const_v<int> && !is_const<int>::value, ""); |
| |
| static_assert(is_volatile_v<volatile int> |
| && is_volatile<volatile int>::value, ""); |
| static_assert(!is_volatile_v<int> && !is_volatile<int>::value, ""); |
| |
| struct NType |
| { |
| NType(int); |
| ~NType(); |
| int i; |
| private: |
| NType(const NType&); |
| NType& operator=(const NType&); |
| int i2; |
| }; |
| |
| static_assert(is_trivial_v<int> && is_trivial<int>::value, ""); |
| static_assert(!is_trivial_v<NType> && !is_trivial<NType>::value, ""); |
| |
| static_assert(is_trivially_copyable_v<int> |
| && is_trivially_copyable<int>::value, ""); |
| static_assert(!is_trivially_copyable_v<NType> |
| && !is_trivially_copyable<NType>::value, ""); |
| |
| static_assert(is_standard_layout_v<int> |
| && is_standard_layout<int>::value, ""); |
| static_assert(!is_standard_layout_v<NType> |
| && !is_standard_layout<NType>::value, ""); |
| |
| // Deprecated in C++20 |
| static_assert(is_pod_v<int> |
| && is_pod<int>::value, ""); |
| static_assert(!is_pod_v<NType> |
| && !is_pod<NType>::value, ""); |
| |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wdeprecated-declarations" |
| static_assert(is_literal_type_v<int> |
| && is_literal_type<int>::value, ""); |
| static_assert(!is_literal_type_v<NType> |
| && !is_literal_type<NType>::value, ""); |
| #pragma GCC diagnostic pop |
| |
| static_assert(is_empty_v<EmptyFinal> |
| && is_empty<EmptyFinal>::value, ""); |
| static_assert(!is_empty_v<NType> |
| && !is_empty<NType>::value, ""); |
| |
| struct Abstract {protected: virtual ~Abstract() = 0;}; |
| struct Poly : Abstract {virtual ~Poly();}; |
| |
| static_assert(is_polymorphic_v<Poly> |
| && is_polymorphic<Poly>::value, ""); |
| static_assert(!is_polymorphic_v<EmptyFinal> |
| && !is_polymorphic<EmptyFinal>::value, ""); |
| |
| |
| |
| static_assert(is_abstract_v<Abstract> |
| && is_abstract<Abstract>::value, ""); |
| static_assert(!is_abstract_v<EmptyFinal> |
| && !is_abstract<EmptyFinal>::value, ""); |
| |
| static_assert(is_final_v<EmptyFinal> |
| && is_final<EmptyFinal>::value, ""); |
| static_assert(!is_final_v<Abstract> |
| && !is_final<Abstract>::value, ""); |
| |
| static_assert(is_signed_v<int> && is_signed<int>::value, ""); |
| static_assert(!is_signed_v<unsigned int> |
| && !is_signed<unsigned int>::value, ""); |
| |
| static_assert(is_constructible_v<int, int> |
| && is_constructible<int, int>::value, ""); |
| static_assert(!is_constructible_v<int, void*> |
| && !is_constructible<int, void*>::value, ""); |
| |
| static_assert(is_default_constructible_v<int> |
| && is_default_constructible<int>::value, ""); |
| static_assert(!is_default_constructible_v<NType> |
| && !is_default_constructible<NType>::value, ""); |
| |
| static_assert(is_copy_constructible_v<int> |
| && is_copy_constructible<int>::value, ""); |
| static_assert(!is_copy_constructible_v<NType> |
| && !is_copy_constructible<NType>::value, ""); |
| |
| static_assert(is_move_constructible_v<int> |
| && is_copy_constructible<int>::value, ""); |
| static_assert(!is_move_constructible_v<NType> |
| && !is_copy_constructible<NType>::value, ""); |
| |
| static_assert(is_assignable_v<int&, int> |
| && is_assignable<int&, int>::value, ""); |
| static_assert(!is_assignable_v<int, int> |
| && !is_assignable<int, int>::value, ""); |
| |
| static_assert(is_copy_assignable_v<int> |
| && is_copy_assignable<int>::value, ""); |
| static_assert(!is_copy_assignable_v<NType> |
| && !is_copy_assignable<NType>::value, ""); |
| |
| static_assert(is_move_assignable_v<int> |
| && is_move_assignable<int>::value, ""); |
| static_assert(!is_move_assignable_v<NType> |
| && !is_move_assignable<NType>::value, ""); |
| |
| static_assert(is_destructible_v<int> |
| && is_destructible<int>::value, ""); |
| static_assert(!is_destructible_v<Abstract> |
| && !is_destructible<Abstract>::value, ""); |
| |
| static_assert(is_trivially_constructible_v<int, int> |
| && is_trivially_constructible<int, int>::value, ""); |
| static_assert(!is_trivially_constructible_v<NType, NType> |
| && !is_trivially_constructible<NType, NType>::value, ""); |
| |
| static_assert(is_trivially_default_constructible_v<int> |
| && is_trivially_default_constructible<int>::value, ""); |
| static_assert(!is_trivially_default_constructible_v<NType> |
| && !is_trivially_default_constructible<NType>::value, ""); |
| |
| static_assert(is_trivially_copy_constructible_v<int> |
| && is_trivially_copy_constructible<int>::value, ""); |
| static_assert(!is_trivially_copy_constructible_v<NType> |
| && !is_trivially_copy_constructible<NType>::value, ""); |
| |
| static_assert(is_trivially_move_constructible_v<int> |
| && is_trivially_move_constructible<int>::value, ""); |
| static_assert(!is_trivially_move_constructible_v<NType> |
| && !is_trivially_move_constructible<NType>::value, ""); |
| |
| static_assert(is_trivially_assignable_v<int&, int> |
| && is_trivially_assignable<int&, int>::value, ""); |
| static_assert(!is_trivially_assignable_v<NType, NType> |
| && !is_trivially_assignable<NType, NType>::value, ""); |
| |
| static_assert(is_trivially_copy_assignable_v<int> |
| && is_trivially_copy_assignable<int>::value, ""); |
| static_assert(!is_trivially_copy_assignable_v<NType> |
| && !is_trivially_copy_assignable<NType>::value, ""); |
| |
| static_assert(is_trivially_move_assignable_v<int> |
| && is_trivially_move_assignable<int>::value, ""); |
| static_assert(!is_trivially_move_assignable_v<NType> |
| && !is_trivially_move_assignable<NType>::value, ""); |
| |
| static_assert(is_trivially_destructible_v<int> |
| && is_trivially_destructible<int>::value, ""); |
| static_assert(!is_trivially_destructible_v<Abstract> |
| && !is_trivially_destructible<Abstract>::value, ""); |
| |
| static_assert(is_nothrow_constructible_v<int, int> |
| && is_nothrow_constructible<int, int>::value, ""); |
| static_assert(!is_nothrow_constructible_v<NType, NType> |
| && !is_nothrow_constructible<NType, NType>::value, ""); |
| |
| static_assert(is_nothrow_default_constructible_v<int> |
| && is_nothrow_default_constructible<int>::value, ""); |
| static_assert(!is_nothrow_default_constructible_v<NType> |
| && !is_nothrow_default_constructible<NType>::value, ""); |
| |
| static_assert(is_nothrow_copy_constructible_v<int> |
| && is_nothrow_copy_constructible<int>::value, ""); |
| static_assert(!is_nothrow_copy_constructible_v<NType> |
| && !is_nothrow_copy_constructible<NType>::value, ""); |
| |
| static_assert(is_nothrow_move_constructible_v<int> |
| && is_nothrow_move_constructible<int>::value, ""); |
| static_assert(!is_nothrow_move_constructible_v<NType> |
| && !is_nothrow_move_constructible<NType>::value, ""); |
| |
| static_assert(is_nothrow_assignable_v<int&, int> |
| && is_nothrow_assignable<int&, int>::value, ""); |
| static_assert(!is_nothrow_assignable_v<NType, NType> |
| && !is_nothrow_assignable<NType, NType>::value, ""); |
| |
| static_assert(is_nothrow_copy_assignable_v<int> |
| && is_nothrow_copy_assignable<int>::value, ""); |
| static_assert(!is_nothrow_copy_assignable_v<NType> |
| && !is_nothrow_copy_assignable<NType>::value, ""); |
| |
| static_assert(is_nothrow_move_assignable_v<int> |
| && is_nothrow_move_assignable<int>::value, ""); |
| static_assert(!is_nothrow_move_assignable_v<NType> |
| && !is_nothrow_move_assignable<NType>::value, ""); |
| |
| static_assert(has_virtual_destructor_v<Abstract> |
| && has_virtual_destructor<Abstract>::value, ""); |
| static_assert(!has_virtual_destructor_v<NType> |
| && !has_virtual_destructor<NType>::value, ""); |
| |
| static_assert(alignment_of_v<int> == alignof(int) |
| && alignment_of<int>::value == alignof(int) , ""); |
| |
| static_assert(rank_v<int[1][1]> == rank<int[1][1]>::value, ""); |
| |
| static_assert(extent_v<int[1][2], 1> == 2 |
| && extent<int[1][2], 1>::value == 2, ""); |
| |
| static_assert(is_same_v<int, int> && is_same<int, int>::value, ""); |
| static_assert(!is_same_v<int, char> && !is_same<int, char>::value, ""); |
| |
| static_assert(is_base_of_v<Abstract, Poly> |
| && is_base_of<Abstract, Poly>::value, ""); |
| static_assert(!is_base_of_v<Abstract, NType> |
| && !is_base_of<Abstract, NType>::value, ""); |
| |
| static_assert(is_convertible_v<int&, const int&> |
| && is_convertible<int&, const int&>::value, ""); |
| static_assert(!is_convertible_v<const int&, int&> |
| && !is_convertible<const int&, int&>::value, ""); |
| |
| static_assert(negation_v<false_type>, ""); |
| static_assert(!negation_v<true_type>, ""); |
| static_assert(conjunction_v<>, ""); |
| static_assert(!disjunction_v<>, ""); |
| static_assert(conjunction_v<true_type>, ""); |
| static_assert(!conjunction_v<false_type>, ""); |
| static_assert(disjunction_v<true_type>, ""); |
| static_assert(!disjunction_v<false_type>, ""); |
| static_assert(conjunction_v<true_type, true_type>, ""); |
| static_assert(!conjunction_v<true_type, false_type>, ""); |
| static_assert(disjunction_v<false_type, true_type>, ""); |
| static_assert(!disjunction_v<false_type, false_type>, ""); |
| static_assert(conjunction_v<true_type, true_type, |
| true_type>, ""); |
| static_assert(!conjunction_v<true_type, true_type, |
| false_type>, ""); |
| static_assert(disjunction_v<false_type, false_type, |
| true_type>, ""); |
| static_assert(!disjunction_v<false_type, false_type, |
| false_type>, ""); |