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1 | // Copyright (C) 2018-2024 Free Software Foundation, Inc. | |
2 | // | |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
18 | // { dg-do compile { target c++17 } } | |
19 | ||
20 | #include <unordered_set> | |
21 | ||
22 | std::pmr::unordered_set<int> c{1, 2, 3, 4}; | |
23 | ||
24 | struct X { }; | |
25 | struct Hash { std::size_t operator()(X) const { return 0; } }; | |
26 | struct Eq { bool operator()(X, X) const { return true; } }; | |
27 | ||
28 | static_assert(std::is_same_v<std::pmr::unordered_set<X>, | |
29 | std::unordered_set<X, std::hash<X>, std::equal_to<X>, | |
30 | std::pmr::polymorphic_allocator<X>>>); | |
31 | static_assert(std::is_same_v<std::pmr::unordered_set<X, Hash>, | |
32 | std::unordered_set<X, Hash, std::equal_to<X>, | |
33 | std::pmr::polymorphic_allocator<X>>>); | |
34 | static_assert(std::is_same_v<std::pmr::unordered_set<X, Hash, Eq>, | |
35 | std::unordered_set<X, Hash, Eq, | |
36 | std::pmr::polymorphic_allocator<X>>>); |