| // { dg-do compile { target c++11 } } |
| |
| // Copyright (C) 2013-2023 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/>. |
| |
| // libstdc++/55043 |
| |
| #include <unordered_set> |
| #include <vector> |
| |
| struct MoveOnly |
| { |
| MoveOnly() = default; |
| MoveOnly(MoveOnly&&) = default; |
| }; |
| |
| struct equal |
| { |
| bool |
| operator()(const MoveOnly&, const MoveOnly&) const |
| { return true; } |
| }; |
| |
| struct hash |
| { |
| std::size_t |
| operator()(const MoveOnly&) const |
| { return 0; } |
| }; |
| |
| template<typename Alloc> |
| using test_type = std::unordered_set<MoveOnly, hash, equal, Alloc>; |
| |
| void test01() |
| { |
| typedef test_type<std::allocator<MoveOnly>> uim; |
| std::vector<uim> v; |
| v.emplace_back(uim()); |
| } |