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99dee823 | 1 | // Copyright (C) 2015-2021 Free Software Foundation, Inc. |
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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 | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
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 | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
6458742a | 18 | // { dg-do run { target c++17 } } |
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19 | |
20 | #include <any> | |
21 | #include <set> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | std::set<const void*> live_objects; | |
25 | ||
26 | struct A { | |
27 | A() { live_objects.insert(this); } | |
28 | ~A() { live_objects.erase(this); } | |
29 | A(const A& a) { VERIFY(live_objects.count(&a)); live_objects.insert(this); } | |
30 | }; | |
31 | ||
32 | void | |
33 | test01() | |
34 | { | |
35 | using std::any; | |
36 | ||
37 | any a; | |
38 | a = a; | |
25a69162 | 39 | VERIFY( !a.has_value() ); |
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40 | |
41 | a = A{}; | |
42 | a = a; | |
25a69162 | 43 | VERIFY( a.has_value() ); |
52e86221 | 44 | |
25a69162 | 45 | a.reset(); |
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46 | VERIFY( live_objects.empty() ); |
47 | } | |
48 | ||
49 | void | |
50 | test02() | |
51 | { | |
52 | using std::any; | |
53 | ||
54 | struct X { | |
55 | any a; | |
56 | }; | |
57 | ||
58 | X x; | |
59 | std::swap(x, x); // results in "self-move-assignment" of X::a | |
25a69162 | 60 | VERIFY( !x.a.has_value() ); |
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61 | |
62 | x.a = A{}; | |
63 | std::swap(x, x); // results in "self-move-assignment" of X::a | |
25a69162 | 64 | VERIFY( x.a.has_value() ); |
52e86221 | 65 | |
25a69162 | 66 | x.a.reset(); |
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67 | VERIFY( live_objects.empty() ); |
68 | } | |
69 | ||
70 | void | |
71 | test03() | |
72 | { | |
73 | using std::any; | |
74 | ||
75 | any a; | |
76 | a.swap(a); | |
25a69162 | 77 | VERIFY( !a.has_value() ); |
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78 | |
79 | a = A{}; | |
80 | a.swap(a); | |
25a69162 | 81 | VERIFY( a.has_value() ); |
52e86221 | 82 | |
25a69162 | 83 | a.reset(); |
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84 | VERIFY( live_objects.empty() ); |
85 | } | |
86 | ||
87 | int | |
88 | main() | |
89 | { | |
90 | test01(); | |
91 | test02(); | |
92 | test03(); | |
93 | } |