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fbd26352 | 1 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
b7aaabf0 | 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 | ||
be58e01d | 18 | // { dg-do run { target c++11 } } |
77d81397 | 19 | // COW strings don't support C++11 allocators: |
20 | // { dg-require-effective-target cxx11-abi } | |
b7aaabf0 | 21 | |
22 | #include <string> | |
23 | #include <testsuite_hooks.h> | |
24 | #include <testsuite_allocator.h> | |
25 | ||
7a2ea99f | 26 | using C = wchar_t; |
27 | const C c = L'a'; | |
b7aaabf0 | 28 | using traits = std::char_traits<C>; |
29 | ||
30 | using __gnu_test::propagating_allocator; | |
31 | ||
32 | // It is undefined behaviour to swap() containers wth unequal allocators | |
33 | // if the allocator doesn't propagate, so ensure the allocators compare | |
34 | // equal, while still being able to test propagation via get_personality(). | |
35 | bool | |
36 | operator==(const propagating_allocator<C, false>&, | |
37 | const propagating_allocator<C, false>&) | |
38 | { | |
39 | return true; | |
40 | } | |
41 | ||
42 | bool | |
43 | operator!=(const propagating_allocator<C, false>&, | |
44 | const propagating_allocator<C, false>&) | |
45 | { | |
46 | return false; | |
47 | } | |
48 | ||
49 | void test01() | |
50 | { | |
b7aaabf0 | 51 | typedef propagating_allocator<C, false> alloc_type; |
52 | typedef std::basic_string<C, traits, alloc_type> test_type; | |
53 | test_type v1(alloc_type(1)); | |
54 | v1.push_back(C()); | |
55 | test_type v2(alloc_type(2)); | |
56 | v2.push_back(C()); | |
57 | std::swap(v1, v2); | |
58 | VERIFY(1 == v1.get_allocator().get_personality()); | |
59 | VERIFY(2 == v2.get_allocator().get_personality()); | |
60 | // swap back so assertions in uneq_allocator::deallocate don't fail | |
61 | std::swap(v1, v2); | |
62 | } | |
63 | ||
64 | void test02() | |
65 | { | |
b7aaabf0 | 66 | typedef propagating_allocator<C, true> alloc_type; |
67 | typedef std::basic_string<C, traits, alloc_type> test_type; | |
68 | test_type v1(alloc_type(1)); | |
69 | v1.push_back(C()); | |
70 | test_type v2(alloc_type(2)); | |
71 | v2.push_back(C()); | |
72 | std::swap(v1, v2); | |
73 | VERIFY(2 == v1.get_allocator().get_personality()); | |
74 | VERIFY(1 == v2.get_allocator().get_personality()); | |
75 | } | |
76 | ||
77 | int main() | |
78 | { | |
79 | test01(); | |
80 | test02(); | |
81 | return 0; | |
82 | } |