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7adcbafe | 1 | // Copyright (C) 2018-2022 Free Software Foundation, Inc. |
dfaa3c47 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 | ||
dfaa3c47 JW |
18 | // { dg-do run { target c++17 } } |
19 | ||
20 | #include <memory_resource> | |
21 | #include <testsuite_allocator.h> | |
22 | ||
23 | void | |
24 | test01() | |
25 | { | |
26 | __gnu_test::memory_resource r; | |
27 | const auto null = std::pmr::null_memory_resource(); | |
28 | const auto newdel = std::pmr::new_delete_resource(); | |
29 | std::pmr::set_default_resource(null); | |
30 | ||
31 | { | |
32 | std::pmr::monotonic_buffer_resource mr(&r); | |
33 | VERIFY( mr.upstream_resource() == &r ); | |
34 | __gnu_test::default_resource_mgr _(newdel); | |
35 | VERIFY( mr.upstream_resource() == &r ); | |
36 | } | |
37 | { | |
38 | std::pmr::monotonic_buffer_resource mr(128, &r); | |
39 | VERIFY( mr.upstream_resource() == &r ); | |
40 | __gnu_test::default_resource_mgr _(newdel); | |
41 | VERIFY( mr.upstream_resource() == &r ); | |
42 | } | |
43 | { | |
44 | unsigned char buf[64]; | |
45 | std::pmr::monotonic_buffer_resource mr((void*)buf, sizeof(buf), &r); | |
46 | VERIFY( mr.upstream_resource() == &r ); | |
47 | __gnu_test::default_resource_mgr _(newdel); | |
48 | VERIFY( mr.upstream_resource() == &r ); | |
49 | } | |
50 | { | |
51 | std::pmr::monotonic_buffer_resource mr; | |
52 | VERIFY( mr.upstream_resource() == null ); | |
53 | __gnu_test::default_resource_mgr _(newdel); | |
54 | VERIFY( mr.upstream_resource() == null ); | |
55 | } | |
56 | { | |
57 | std::pmr::monotonic_buffer_resource mr(64); | |
58 | VERIFY( mr.upstream_resource() == null ); | |
59 | __gnu_test::default_resource_mgr _(newdel); | |
60 | VERIFY( mr.upstream_resource() == null ); | |
61 | } | |
62 | { | |
63 | unsigned char buf[64]; | |
64 | std::pmr::monotonic_buffer_resource mr((void*)buf, sizeof(buf)); | |
65 | VERIFY( mr.upstream_resource() == null ); | |
66 | __gnu_test::default_resource_mgr _(newdel); | |
67 | VERIFY( mr.upstream_resource() == null ); | |
68 | } | |
69 | } | |
70 | ||
71 | int | |
72 | main() | |
73 | { | |
74 | test01(); | |
75 | } |