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52066eae | 1 | // { dg-do run { target c++11 } } |
aaf0ca6f | 2 | |
99dee823 | 3 | // Copyright (C) 2005-2021 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
aaf0ca6f JW |
9 | // any later version. |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 20.6.6.2 Template class shared_ptr [util.smartptr.shared] | |
21 | ||
22 | #include <memory> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | struct A { }; | |
26 | struct B : A { }; | |
27 | struct D | |
28 | { | |
29 | void operator()(B* p) { delete p; ++delete_count; } | |
30 | static long delete_count; | |
31 | }; | |
32 | long D::delete_count = 0; | |
33 | ||
34 | // 20.6.6.2.4 shared_ptr modifiers [util.smartptr.shared.mod] | |
35 | ||
36 | // reset | |
37 | int | |
38 | test01() | |
39 | { | |
aaf0ca6f JW |
40 | A * const a = new A; |
41 | std::shared_ptr<A> p1(a); | |
42 | std::shared_ptr<A> p2(p1); | |
43 | p1.reset(); | |
44 | VERIFY( p1.get() == 0 ); | |
45 | VERIFY( p2.get() == a ); | |
46 | ||
47 | return 0; | |
48 | } | |
49 | ||
50 | int | |
51 | test02() | |
52 | { | |
aaf0ca6f JW |
53 | A * const a = new A; |
54 | B * const b = new B; | |
55 | std::shared_ptr<A> p1(a); | |
56 | std::shared_ptr<A> p2(p1); | |
57 | p1.reset(b); | |
58 | VERIFY( p1.get() == b ); | |
59 | VERIFY( p2.get() == a ); | |
60 | ||
61 | return 0; | |
62 | } | |
63 | ||
64 | int | |
65 | test03() | |
66 | { | |
aaf0ca6f JW |
67 | { |
68 | std::shared_ptr<A> p1; | |
69 | p1.reset(new B, D()); | |
70 | } | |
71 | VERIFY( D::delete_count == 1 ); | |
72 | ||
73 | return 0; | |
74 | } | |
75 | ||
76 | int | |
77 | main() | |
78 | { | |
79 | test01(); | |
80 | test02(); | |
81 | test03(); | |
82 | return 0; | |
83 | } |