]>
Commit | Line | Data |
---|---|---|
52066eae | 1 | // { dg-do run { target c++11 } } |
7cc9022f | 2 | // { dg-require-effective-target hosted } |
aaf0ca6f | 3 | |
a945c346 | 4 | // Copyright (C) 2005-2024 Free Software Foundation, Inc. |
aaf0ca6f JW |
5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
748086b7 | 9 | // Free Software Foundation; either version 3, or (at your option) |
aaf0ca6f JW |
10 | // any later version. |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
17 | // You should have received a copy of the GNU General Public License along | |
748086b7 JJ |
18 | // with this library; see the file COPYING3. If not see |
19 | // <http://www.gnu.org/licenses/>. | |
aaf0ca6f JW |
20 | |
21 | // 20.6.6.2 Template class shared_ptr [util.smartptr.shared] | |
22 | ||
23 | #include <memory> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | struct A { }; | |
27 | struct B : A { }; | |
28 | ||
29 | // 20.6.6.2.5 shared_ptr observers [util.smartptr.shared.obs] | |
30 | ||
31 | // use_count | |
8dd5e93a | 32 | void |
aaf0ca6f JW |
33 | test01() |
34 | { | |
aaf0ca6f JW |
35 | const std::shared_ptr<A> p1; |
36 | VERIFY( p1.use_count() == 0 ); | |
37 | const std::shared_ptr<A> p2(p1); | |
38 | VERIFY( p1.use_count() == 0 ); | |
aaf0ca6f JW |
39 | } |
40 | ||
8dd5e93a | 41 | void |
aaf0ca6f JW |
42 | test02() |
43 | { | |
aaf0ca6f JW |
44 | std::shared_ptr<A> p1(new A); |
45 | std::shared_ptr<A> p2(p1); | |
46 | p1.reset(); | |
47 | VERIFY( p1.use_count() == 0 ); | |
48 | VERIFY( p2.use_count() == 1 ); | |
aaf0ca6f JW |
49 | } |
50 | ||
8dd5e93a | 51 | void |
aaf0ca6f JW |
52 | test03() |
53 | { | |
aaf0ca6f JW |
54 | std::shared_ptr<A> p1(new A); |
55 | std::shared_ptr<A> p2(p1); | |
56 | p2.reset(new B); | |
57 | VERIFY( p1.use_count() == 1 ); | |
58 | VERIFY( p2.use_count() == 1 ); | |
aaf0ca6f JW |
59 | } |
60 | ||
61 | ||
62 | int | |
63 | main() | |
64 | { | |
65 | test01(); | |
66 | test02(); | |
67 | test03(); | |
68 | return 0; | |
69 | } |