| // { dg-do compile { target c++17 } } |
| |
| // Copyright (C) 2014-2023 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 <tuple> |
| |
| using namespace std; |
| |
| // These tests are rather simple, the front-end tests already test |
| // variable templates, and the library tests for the underlying |
| // traits are more elaborate. These are just simple sanity tests. |
| |
| static_assert(tuple_size_v<tuple<int>> == 1 |
| && tuple_size<tuple<int>>::value == 1, ""); |
| |
| static_assert(tuple_size_v<tuple<int, int>> == 2 |
| && tuple_size<tuple<int, int>>::value == 2, ""); |
