gdb/unittests/optional/assignment/7.cc

   1 // Copyright (C) 2016-2023 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
  18 namespace assign_7 {
  19
  20 static void
  21 test ()
  22 {
  23   gdb::optional<int> o{666};
  24   VERIFY(o && *o == 666);
  25   o.reset();
  26   VERIFY(!o);
  27   static_assert(noexcept(std::declval<gdb::optional<int>>().reset()), "");
  28 }
  29
  30 } // namespace assign_7