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52066eae | 1 | // { dg-do run { target c++11 } } |
7cc9022f | 2 | // { dg-require-effective-target hosted } |
6d00745b | 3 | |
a945c346 | 4 | // Copyright (C) 2010-2024 Free Software Foundation, Inc. |
6d00745b 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 | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
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 | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | // 20.9.11.2 Class template shared_ptr [util.smartptr.shared] | |
22 | ||
23 | #include <memory> | |
24 | #include <cstddef> | |
25 | #include <testsuite_hooks.h> | |
26 | #include <testsuite_allocator.h> | |
27 | ||
28 | // 20.9.11.2.1 shared_ptr constructors [util.smartptr.shared.const] | |
29 | ||
30 | // Construction from nullptr | |
31 | ||
32 | struct deleter | |
33 | { | |
34 | int count; | |
35 | deleter() : count(0) { } | |
36 | void operator()(std::nullptr_t) { ++count; } | |
37 | void operator()(int*) const { throw "wrong type passed to deleter"; } | |
38 | }; | |
39 | ||
40 | void | |
41 | test01() | |
42 | { | |
6d00745b JW |
43 | std::shared_ptr<int> p = nullptr; |
44 | VERIFY( p.get() == nullptr ); | |
45 | VERIFY( p.use_count() == 0 ); | |
46 | ||
47 | } | |
48 | ||
49 | void | |
50 | test02() | |
51 | { | |
6d00745b JW |
52 | deleter d; |
53 | std::shared_ptr<int> p(nullptr, std::ref(d)); | |
54 | VERIFY( p.get() == nullptr ); | |
55 | VERIFY( p.use_count() == 1 ); | |
56 | ||
57 | p = nullptr; | |
58 | VERIFY( p.use_count() == 0 ); | |
59 | VERIFY( d.count == 1 ); | |
60 | } | |
61 | ||
62 | ||
63 | void | |
64 | test03() | |
65 | { | |
6d00745b JW |
66 | deleter d; |
67 | __gnu_test::tracker_allocator<int> a; | |
68 | std::shared_ptr<int> p(nullptr, std::ref(d), a); | |
69 | VERIFY( p.get() == nullptr ); | |
70 | VERIFY( p.use_count() == 1 ); | |
71 | ||
72 | p = nullptr; | |
73 | VERIFY( p.use_count() == 0 ); | |
74 | VERIFY( d.count == 1 ); | |
75 | ||
76 | typedef __gnu_test::tracker_allocator_counter c; | |
77 | VERIFY( c::get_destruct_count() == c::get_construct_count() ); | |
78 | VERIFY( c::get_deallocation_count() == c::get_allocation_count() ); | |
79 | } | |
80 | ||
81 | int | |
82 | main() | |
83 | { | |
84 | test01(); | |
85 | test02(); | |
86 | test03(); | |
87 | return 0; | |
88 | } |