| // Copyright (C) 2020-2025 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/>. |
| |
| // { dg-do compile { target c++20 } } |
| |
| // PR libstdc++/93983 |
| |
| // LWG 3420. |
| // cpp17-iterator should check that the type looks like an iterator first |
| |
| #include <filesystem> |
| #include <iterator> |
| #include <concepts> |
| |
| struct Foo |
| { |
| Foo(const std::filesystem::path& p); |
| }; |
| |
| static_assert(std::copyable<Foo>); |
| |
| struct X |
| { |
| template<typename T, typename = std::iterator_traits<T>::iterator_category> |
| X(const T&); |
| }; |
| |
| static_assert(std::copyable<X>); |
