]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/optional/cons/default.cc
1 // { dg-do run { target c++17 } }
3 // Copyright (C) 2013-2021 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
21 #include <testsuite_hooks.h>
25 tracker() { ++count
; }
26 ~tracker() { --count
; }
28 tracker(tracker
const&) { ++count
; }
29 tracker(tracker
&&) { ++count
; }
31 tracker
& operator=(tracker
const&) = default;
32 tracker
& operator=(tracker
&&) = default;
37 int tracker::count
= 0;
41 // [20.5.4.1] Constructors
44 std::optional
<tracker
> o
;
49 std::optional
<tracker
> o
{};
54 std::optional
<tracker
> o
= {};
58 VERIFY( tracker::count
== 0 );