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99dee823 | 1 | // Copyright (C) 2005-2021 Free Software Foundation, Inc. |
7dfded91 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 | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
7dfded91 JW |
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 | |
748086b7 JJ |
15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
7dfded91 JW |
17 | |
18 | // TR1 2.2.2 Template class shared_ptr [tr.util.smartptr.shared] | |
19 | ||
20 | #include <tr1/memory> | |
21 | #include <testsuite_hooks.h> | |
22 | ||
23 | struct A | |
24 | { | |
25 | A() { ++ctor_count; } | |
26 | virtual ~A() { ++dtor_count; } | |
27 | static long ctor_count; | |
28 | static long dtor_count; | |
29 | }; | |
30 | long A::ctor_count = 0; | |
31 | long A::dtor_count = 0; | |
32 | ||
33 | struct B : A | |
34 | { | |
35 | B() { ++ctor_count; } | |
36 | virtual ~B() { ++dtor_count; } | |
37 | static long ctor_count; | |
38 | static long dtor_count; | |
39 | }; | |
40 | long B::ctor_count = 0; | |
41 | long B::dtor_count = 0; | |
42 | ||
43 | void deleter(A* p) { delete p; } | |
44 | ||
45 | struct reset_count_struct | |
46 | { | |
47 | ~reset_count_struct() | |
48 | { | |
49 | A::ctor_count = 0; | |
50 | A::dtor_count = 0; | |
51 | B::ctor_count = 0; | |
52 | B::dtor_count = 0; | |
53 | } | |
54 | }; | |
55 | ||
56 | // 2.2.3.1 shared_ptr constructors [tr.util.smartptr.shared.const] | |
57 | ||
58 | // Copy construction | |
59 | int test01() | |
60 | { | |
61 | reset_count_struct __attribute__((unused)) reset; | |
7dfded91 JW |
62 | |
63 | std::tr1::shared_ptr<A> a1; | |
64 | std::tr1::shared_ptr<A> a2(a1); | |
65 | VERIFY( a2.use_count() == 0 ); | |
66 | VERIFY( A::ctor_count == 0 ); | |
67 | VERIFY( A::dtor_count == 0 ); | |
68 | VERIFY( B::ctor_count == 0 ); | |
69 | VERIFY( B::dtor_count == 0 ); | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | int | |
75 | test02() | |
76 | { | |
77 | reset_count_struct __attribute__((unused)) reset; | |
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78 | |
79 | std::tr1::shared_ptr<A> a1(new A); | |
80 | std::tr1::shared_ptr<A> a2(a1); | |
81 | VERIFY( a2.use_count() == 2 ); | |
82 | VERIFY( A::ctor_count == 1 ); | |
83 | VERIFY( A::dtor_count == 0 ); | |
84 | VERIFY( B::ctor_count == 0 ); | |
85 | VERIFY( B::dtor_count == 0 ); | |
86 | ||
87 | return 0; | |
88 | } | |
89 | ||
90 | int | |
91 | test03() | |
92 | { | |
93 | reset_count_struct __attribute__((unused)) reset; | |
7dfded91 JW |
94 | |
95 | std::tr1::shared_ptr<B> b(new B); | |
96 | std::tr1::shared_ptr<A> a(b); | |
97 | VERIFY( a.use_count() == 2 ); | |
98 | VERIFY( A::ctor_count == 1 ); | |
99 | VERIFY( A::dtor_count == 0 ); | |
100 | VERIFY( B::ctor_count == 1 ); | |
101 | VERIFY( B::dtor_count == 0 ); | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
106 | int | |
107 | test04() | |
108 | { | |
109 | reset_count_struct __attribute__((unused)) reset; | |
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110 | |
111 | std::tr1::shared_ptr<B> b(new B, &deleter); | |
112 | std::tr1::shared_ptr<A> a(b); | |
113 | VERIFY( a.use_count() == 2 ); | |
114 | VERIFY( A::ctor_count == 1 ); | |
115 | VERIFY( A::dtor_count == 0 ); | |
116 | VERIFY( B::ctor_count == 1 ); | |
117 | VERIFY( B::dtor_count == 0 ); | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
122 | int | |
123 | main() | |
124 | { | |
125 | test01(); | |
126 | test02(); | |
127 | test03(); | |
128 | test04(); | |
129 | return 0; | |
130 | } |