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52066eae | 1 | // { dg-do run { target c++14 } } |
930d5602 | 2 | |
a5544970 | 3 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
930d5602 FY |
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 | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
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 | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | // 8.2.1 Class template shared_ptr [memory.smartptr.shared] | |
21 | ||
22 | #include <experimental/memory> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | struct A | |
26 | { | |
27 | A() { ++ctor_count; } | |
28 | virtual ~A() { ++dtor_count; } | |
29 | static long ctor_count; | |
30 | static long dtor_count; | |
31 | }; | |
32 | long A::ctor_count = 0; | |
33 | long A::dtor_count = 0; | |
34 | ||
35 | struct D | |
36 | { | |
37 | void operator()(A* p) const { delete [] p; ++delete_count; } | |
38 | static long delete_count; | |
39 | }; | |
40 | long D::delete_count = 0; | |
41 | ||
42 | struct reset_count_struct | |
43 | { | |
44 | ~reset_count_struct() | |
45 | { | |
46 | A::ctor_count = 0; | |
47 | A::dtor_count = 0; | |
48 | D::delete_count = 0; | |
49 | } | |
50 | }; | |
51 | ||
52 | // 8.2.1.1 shared_ptr constructors [memory.smartptr.shared.const] | |
53 | ||
54 | // Rvalue construction | |
55 | int test01() | |
56 | { | |
57 | reset_count_struct __attribute__((unused)) reset; | |
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58 | |
59 | std::experimental::shared_ptr<A[5]> a1; | |
60 | std::experimental::shared_ptr<A[5]> a2(std::move(a1)); | |
61 | VERIFY( a1.use_count() == 0 ); | |
62 | VERIFY( a2.use_count() == 0 ); | |
63 | VERIFY( A::ctor_count == 0 ); | |
64 | VERIFY( A::dtor_count == 0 ); | |
65 | ||
66 | return 0; | |
67 | } | |
68 | ||
69 | int | |
70 | test02() | |
71 | { | |
72 | reset_count_struct __attribute__((unused)) reset; | |
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73 | |
74 | std::experimental::shared_ptr<A[5]> a1(new A[5]); | |
75 | std::experimental::shared_ptr<A[5]> a2(std::move(a1)); | |
76 | VERIFY( a2.use_count() == 1 ); | |
77 | VERIFY( A::ctor_count == 5 ); | |
78 | VERIFY( A::dtor_count == 0 ); | |
79 | ||
80 | return 0; | |
81 | } | |
82 | ||
83 | int | |
84 | test03() | |
85 | { | |
86 | reset_count_struct __attribute__((unused)) reset; | |
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87 | |
88 | std::experimental::shared_ptr<A[5]> b(new A[5], D()); | |
89 | std::experimental::shared_ptr<A[5]> b1(std::move(b)); | |
90 | VERIFY( b.use_count() == 0 ); | |
91 | VERIFY( b1.use_count() == 1 ); | |
92 | VERIFY( A::ctor_count == 5 ); | |
93 | VERIFY( A::dtor_count == 0 ); | |
94 | ||
95 | b1 = std::move(std::experimental::shared_ptr<A[5]> ()); | |
96 | ||
97 | VERIFY( A::ctor_count == 5 ); | |
98 | VERIFY( A::dtor_count == 5 ); | |
99 | VERIFY( D::delete_count == 1 ); | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
104 | void | |
105 | test04() | |
106 | { | |
107 | reset_count_struct __attribute__((unused)) reset; | |
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108 | |
109 | std::experimental::shared_ptr<A[5]> a(std::move(std::experimental | |
110 | ::shared_ptr<A[5]> | |
111 | (new A[5]))); | |
112 | ||
113 | VERIFY( a.use_count() == 1 ); | |
114 | VERIFY( A::ctor_count == 5 ); | |
115 | VERIFY( A::dtor_count == 0 ); | |
116 | } | |
117 | ||
118 | void | |
119 | test05() | |
120 | { | |
121 | reset_count_struct __attribute__((unused)) reset; | |
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122 | |
123 | std::experimental::shared_ptr<A[]> a(std::move(std::experimental | |
124 | ::shared_ptr<A[5]> | |
125 | (new A[5]))); | |
126 | ||
127 | VERIFY( a.use_count() == 1 ); | |
128 | VERIFY( A::ctor_count == 5 ); | |
129 | VERIFY( A::dtor_count == 0 ); | |
130 | } | |
131 | ||
132 | int | |
133 | main() | |
134 | { | |
135 | test01(); | |
136 | test02(); | |
137 | test03(); | |
138 | test04(); | |
139 | test05(); | |
140 | return 0; | |
141 | } |