1 // Copyright (C) 2019-2021 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/>.
18 // { dg-do compile { target c++11 } }
22 using std::input_iterator_tag
;
23 using std::output_iterator_tag
;
24 using std::iterator_traits
;
26 static_assert( std::is_empty
<input_iterator_tag
>::value
);
27 static_assert( std::is_trivially_copy_constructible
<input_iterator_tag
>::value
);
29 static_assert( ! std::is_base_of
<output_iterator_tag
,
30 input_iterator_tag
>::value
);
31 static_assert( ! std::is_convertible
<input_iterator_tag
*,
32 output_iterator_tag
*>::value
);