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e2882c85 | 1 | // Copyright (C) 2013-2018 Free Software Foundation, Inc. |
d35d1958 PA |
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 | ||
18 | namespace cons_default { | |
19 | ||
20 | struct tracker | |
21 | { | |
22 | tracker() { ++count; } | |
23 | ~tracker() { --count; } | |
24 | ||
25 | tracker(tracker const&) { ++count; } | |
26 | tracker(tracker&&) { ++count; } | |
27 | ||
28 | tracker& operator=(tracker const&) = default; | |
29 | tracker& operator=(tracker&&) = default; | |
30 | ||
31 | static int count; | |
32 | }; | |
33 | ||
34 | int tracker::count = 0; | |
35 | ||
36 | void test() | |
37 | { | |
38 | // [20.5.4.1] Constructors | |
39 | ||
40 | { | |
41 | gdb::optional<tracker> o; | |
42 | VERIFY( !o ); | |
43 | } | |
44 | ||
45 | { | |
46 | gdb::optional<tracker> o {}; | |
47 | VERIFY( !o ); | |
48 | } | |
49 | ||
50 | { | |
51 | gdb::optional<tracker> o = {}; | |
52 | VERIFY( !o ); | |
53 | } | |
54 | ||
55 | VERIFY( tracker::count == 0 ); | |
56 | } | |
57 | ||
58 | } // namespace cons_default |