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99dee823 | 1 | // Copyright (C) 2016-2021 Free Software Foundation, Inc. |
8cab3d18 JW |
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 | ||
52066eae | 18 | // { dg-do run { target c++11 } } |
8cab3d18 JW |
19 | |
20 | #include <set> | |
21 | #include <testsuite_hooks.h> | |
22 | ||
23 | template<typename T> | |
24 | struct mv_allocator | |
25 | { | |
26 | using value_type = T; | |
27 | using size_type = unsigned; | |
28 | ||
29 | mv_allocator() | |
30 | : moved_to(false), moved_from(false) { } | |
31 | ||
32 | template<typename U> | |
33 | mv_allocator(const mv_allocator<U> & a) | |
34 | : moved_to(a.moved_to), moved_from(a.moved_from) { } | |
35 | ||
36 | mv_allocator(const mv_allocator &) = default; | |
37 | ||
38 | mv_allocator(mv_allocator && a) noexcept : moved_to(true) | |
39 | { | |
40 | a.moved_from = true; | |
41 | } | |
42 | ||
43 | T* allocate(unsigned n) { return std::allocator<T>{}.allcoate(n); } | |
44 | void deallocate(T* p, unsigned n) { std::allocator<T>{}.deallocate(p, n); } | |
45 | ||
46 | bool moved_to; | |
47 | bool moved_from; | |
48 | }; | |
49 | ||
50 | template<typename T, typename U> | |
51 | bool | |
52 | operator==(const mv_allocator<T>&, const mv_allocator<U>&) { return true; } | |
53 | ||
54 | template<typename T, typename U> | |
55 | bool | |
56 | operator!=(const mv_allocator<T>&, const mv_allocator<U>&) { return false; } | |
57 | ||
58 | void | |
59 | test01() | |
60 | { | |
61 | std::set<int, std::less<int>, mv_allocator<int>> s; | |
62 | auto t = std::move(s); | |
63 | VERIFY( s.get_allocator().moved_from ); | |
64 | VERIFY( t.get_allocator().moved_to ); | |
65 | } | |
66 | ||
67 | int | |
68 | main() | |
69 | { | |
70 | test01(); | |
71 | } |