// Copyright (C) 2013-2023 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . namespace cons_default { struct tracker { tracker() { ++count; } ~tracker() { --count; } tracker(tracker const&) { ++count; } tracker(tracker&&) { ++count; } tracker& operator=(tracker const&) = default; tracker& operator=(tracker&&) = default; static int count; }; int tracker::count = 0; static void test () { // [20.5.4.1] Constructors { gdb::optional o; VERIFY( !o ); } { gdb::optional o {}; VERIFY( !o ); } { gdb::optional o = {}; VERIFY( !o ); } VERIFY( tracker::count == 0 ); } } // namespace cons_default