]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/23_containers/array/requirements/non_default_constructible.cc
1 // { dg-do compile { target c++11 } }
3 // Copyright (C) 2012-2022 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/>.
24 template < typename
...Types
>
30 static auto optioned_types() -> std::array
<std::type_index
, 0>
31 { return std::array
<std::type_index
, 0>{ {} }; }
34 template < typename Head
, typename
...Tail
>
35 union super_union
<Head
, Tail
...>
38 auto optioned_types() -> std::array
<std::type_index
, 1 + sizeof...(Tail
)>
40 using std::type_index
;
42 return { {type_index(typeid(Head
)), type_index(typeid(Tail
))...} };
46 super_union
<Tail
...> rest
;