| // { dg-options "-std=gnu++17" } |
| // { dg-do compile { target c++17 } } |
| |
| // Copyright (C) 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. |
| |
| // 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 <memory_resource> |
| |
| static_assert(std::is_abstract_v<std::pmr::memory_resource>); |
| static_assert(std::is_polymorphic_v<std::pmr::memory_resource>); |
| static_assert(!std::is_final_v<std::pmr::memory_resource>); |
| |
| struct R0 : std::pmr::memory_resource { }; |
| static_assert(std::is_abstract_v<R0>); |
| |
| struct R1 : R0 { |
| void* do_allocate(std::size_t, std::size_t) override; |
| }; |
| static_assert(std::is_abstract_v<R1>); |
| |
| struct R2 : R1 { |
| void do_deallocate(void*, std::size_t, std::size_t) override; |
| }; |
| static_assert(std::is_abstract_v<R2>); |
| |
| struct R3 : R2 { |
| bool do_is_equal(const std::pmr::memory_resource&) const noexcept override; |
| }; |
| static_assert(!std::is_abstract_v<R3>); |
| static_assert(std::is_default_constructible_v<R3>); |
| static_assert(std::is_copy_constructible_v<R3>); |
| static_assert(std::is_copy_assignable_v<R3>); |
| static_assert(std::is_destructible_v<R3>); |