1 // Copyright (C) 2013-2022 Free Software Foundation, Inc.
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)
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.
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/>.
23 // [20.5.5] In-place construction
25 gdb::optional
<int> o
{ gdb::in_place
};
27 VERIFY( *o
== int() );
30 static_assert( !std::is_convertible
<gdb::in_place_t
, gdb::optional
<int>>(), "" );
35 gdb::optional
<int> o
{ gdb::in_place
, 42 };
41 gdb::optional
<std::vector
<int>> o
{ gdb::in_place
, 18, 4 };
43 VERIFY( o
->size() == 18 );
44 VERIFY( (*o
)[17] == 4 );
49 gdb::optional
<std::vector
<int>> o
{ gdb::in_place
, { 18, 4 } };
51 VERIFY( o
->size() == 2 );
52 VERIFY( (*o
)[0] == 18 );
58 gdb::optional
<std::vector
<int>> o
{ gdb::in_place
, { 18, 4 }, std::allocator
<int> {} };
60 VERIFY( o
->size() == 2 );
61 VERIFY( (*o
)[0] == 18 );
66 } // namespace in_place