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b811d2c2 | 1 | // Copyright (C) 2013-2020 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 assign_6 { | |
19 | ||
20 | int counter = 0; | |
21 | ||
22 | struct mixin_counter | |
23 | { | |
24 | mixin_counter() { ++counter; } | |
25 | mixin_counter(mixin_counter const&) { ++counter; } | |
26 | ~mixin_counter() { --counter; } | |
27 | }; | |
28 | ||
29 | struct value_type : private mixin_counter | |
30 | { | |
31 | value_type() = default; | |
32 | value_type(int) : state(1) { } | |
33 | value_type(std::initializer_list<char>, const char*) : state(2) { } | |
34 | int state = 0; | |
35 | }; | |
36 | ||
dd694d77 SM |
37 | static void |
38 | test () | |
d35d1958 PA |
39 | { |
40 | using O = gdb::optional<value_type>; | |
41 | ||
42 | // Check emplace | |
43 | ||
44 | { | |
45 | O o; | |
46 | o.emplace(); | |
47 | VERIFY( o && o->state == 0 ); | |
48 | } | |
49 | { | |
50 | O o { gdb::in_place, 0 }; | |
51 | o.emplace(); | |
52 | VERIFY( o && o->state == 0 ); | |
53 | } | |
54 | ||
55 | { | |
56 | O o; | |
57 | o.emplace(0); | |
58 | VERIFY( o && o->state == 1 ); | |
59 | } | |
60 | { | |
61 | O o { gdb::in_place }; | |
62 | o.emplace(0); | |
63 | VERIFY( o && o->state == 1 ); | |
64 | } | |
65 | ||
66 | #ifndef GDB_OPTIONAL | |
67 | { | |
68 | O o; | |
69 | o.emplace({ 'a' }, ""); | |
70 | VERIFY( o && o->state == 2 ); | |
71 | } | |
72 | { | |
73 | O o { gdb::in_place }; | |
74 | o.emplace({ 'a' }, ""); | |
75 | VERIFY( o && o->state == 2 ); | |
76 | } | |
77 | #endif | |
78 | { | |
79 | O o; | |
80 | VERIFY(&o.emplace(0) == &*o); | |
81 | #ifndef GDB_OPTIONAL | |
82 | VERIFY(&o.emplace({ 'a' }, "") == &*o); | |
83 | #endif | |
84 | } | |
85 | ||
86 | static_assert( !std::is_constructible<O, std::initializer_list<int>, int>(), "" ); | |
87 | ||
88 | VERIFY( counter == 0 ); | |
89 | } | |
90 | ||
91 | } // namespace assign_6 |