]>
Commit | Line | Data |
---|---|---|
52066eae | 1 | // { dg-do run { target c++11 } } |
aaf0ca6f | 2 | |
a5544970 | 3 | // Copyright (C) 2007-2019 Free Software Foundation, Inc. |
aaf0ca6f JW |
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/>. | |
aaf0ca6f JW |
19 | |
20 | // 20.6.6.2 Template class shared_ptr [util.smartptr.shared] | |
21 | ||
22 | #include <memory> | |
23 | #include <utility> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | struct A | |
27 | { | |
28 | A() { ++ctor_count; } | |
29 | virtual ~A() { ++dtor_count; } | |
30 | static long ctor_count; | |
31 | static long dtor_count; | |
32 | }; | |
33 | long A::ctor_count = 0; | |
34 | long A::dtor_count = 0; | |
35 | ||
36 | struct B : A | |
37 | { | |
38 | B() { ++ctor_count; } | |
39 | virtual ~B() { ++dtor_count; } | |
40 | static long ctor_count; | |
41 | static long dtor_count; | |
42 | }; | |
43 | long B::ctor_count = 0; | |
44 | long B::dtor_count = 0; | |
45 | ||
46 | struct reset_count_struct | |
47 | { | |
48 | ~reset_count_struct() | |
49 | { | |
50 | A::ctor_count = 0; | |
51 | A::dtor_count = 0; | |
52 | B::ctor_count = 0; | |
53 | B::dtor_count = 0; | |
54 | } | |
55 | }; | |
56 | ||
57 | ||
58 | // 20.6.6.2.1 shared_ptr constructors [util.smartptr.shared.const] | |
59 | ||
60 | // Rvalue assignment from shared_ptr | |
61 | void | |
62 | test01() | |
63 | { | |
64 | reset_count_struct __attribute__((unused)) reset; | |
aaf0ca6f JW |
65 | |
66 | std::shared_ptr<A> a1; | |
67 | std::shared_ptr<A> a2(new A); | |
68 | ||
69 | a1 = std::move(a2); | |
70 | VERIFY( a1.get() != 0 ); | |
71 | VERIFY( a2.get() == 0 ); | |
72 | VERIFY( a1.use_count() == 1 ); | |
73 | VERIFY( a2.use_count() == 0 ); | |
74 | VERIFY( A::ctor_count == 1 ); | |
75 | VERIFY( A::dtor_count == 0 ); | |
76 | ||
77 | a1 = std::move(std::shared_ptr<A>()); | |
78 | VERIFY( a1.get() == 0 ); | |
79 | VERIFY( A::ctor_count == 1 ); | |
80 | VERIFY( A::dtor_count == 1 ); | |
81 | } | |
82 | ||
83 | // Rvalue assignment from shared_ptr<Y> | |
84 | void | |
85 | test02() | |
86 | { | |
87 | reset_count_struct __attribute__((unused)) reset; | |
aaf0ca6f JW |
88 | |
89 | std::shared_ptr<A> a; | |
90 | std::shared_ptr<B> b(new B); | |
91 | ||
92 | a = std::move(b); | |
93 | VERIFY( a.get() != 0 ); | |
94 | VERIFY( b.get() == 0 ); | |
95 | VERIFY( a.use_count() == 1 ); | |
96 | VERIFY( b.use_count() == 0 ); | |
97 | VERIFY( A::ctor_count == 1 ); | |
98 | VERIFY( A::dtor_count == 0 ); | |
99 | VERIFY( B::ctor_count == 1 ); | |
100 | VERIFY( B::dtor_count == 0 ); | |
101 | ||
102 | a = std::move(std::shared_ptr<A>()); | |
103 | VERIFY( a.get() == 0 ); | |
104 | VERIFY( A::ctor_count == 1 ); | |
105 | VERIFY( A::dtor_count == 1 ); | |
106 | VERIFY( B::ctor_count == 1 ); | |
107 | VERIFY( B::dtor_count == 1 ); | |
108 | } | |
109 | ||
110 | int | |
111 | main() | |
112 | { | |
113 | test01(); | |
114 | test02(); | |
115 | return 0; | |
116 | } |