| // { dg-do compile } |
| // { dg-options "-std=gnu++11" } |
| |
| // Copyright (C) 2013-2014 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 |
| // <http://www.gnu.org/licenses/>. |
| |
| #include <utility> |
| #include <type_traits> |
| |
| typedef std::pair<int, long> test_type; |
| |
| static_assert( std::tuple_size<test_type>::value == 2, "size is 2" ); |
| |
| template<std::size_t N, typename T> |
| using Tuple_elt = typename std::tuple_element<N, T>::type; |
| |
| using std::is_same; |
| |
| static_assert( is_same<Tuple_elt<0, test_type>, test_type::first_type>::value, |
| "first type is int" ); |
| |
| static_assert( is_same<Tuple_elt<1, test_type>, test_type::second_type>::value, |
| "second type is long" ); |
