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5.cc
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1// Copyright (C) 2013-2023 Free Software Foundation, Inc.
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
18namespace assign_5 {
19
20static int counter = 0;
21
28
29struct value_type : private mixin_counter { };
30
31static void
33{
34 using O = gdb::optional<value_type>;
35
36 // Check std::nullopt_t and 'default' (= {}) assignment
37
38#ifndef GDB_OPTIONAL
39 {
40 O o;
41 o = std::nullopt;
42 VERIFY( !o );
43 }
44#endif
45
46#ifndef GDB_OPTIONAL
47 {
48 O o { gdb::in_place };
49 o = std::nullopt;
50 VERIFY( !o );
51 }
52#endif
53
54#ifndef GDB_OPTIONAL
55 {
56 O o;
57 o = {};
58 VERIFY( !o );
59 }
60#endif
61
62#ifndef GDB_OPTIONAL
63 {
64 O o { gdb::in_place };
65 o = {};
66 VERIFY( !o );
67 }
68#endif
69 {
70 gdb::optional<std::vector<int>> ovi{{1, 2, 3}};
71 VERIFY(ovi->size() == 3);
72 VERIFY((*ovi)[0] == 1 && (*ovi)[1] == 2 && (*ovi)[2] == 3);
73 ovi = {4, 5, 6, 7};
74 VERIFY(ovi->size() == 4);
75 VERIFY((*ovi)[0] == 4 && (*ovi)[1] == 5 &&
76 (*ovi)[2] == 6 && (*ovi)[3] == 7);
77 }
78 VERIFY( counter == 0 );
79}
80
81} // namespace assign_5
#define VERIFY(x)
Definition 5.cc:18
static void test()
Definition 5.cc:32
static int counter
Definition 5.cc:20
mixin_counter(mixin_counter const &)
Definition 5.cc:25