| // 2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com> |
| // Copyright (C) 2019-2023 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/>. |
| |
| // { dg-do compile { target c++14 } } |
| |
| #include <type_traits> |
| // Example taken from LWG2960 |
| |
| using std::__nonesuch; |
| struct such {}; |
| void f(const such&){}; |
| void f(const std::__nonesuch&); |
| |
| int main(){ |
| static_assert(!std::is_default_constructible<__nonesuch>::value, |
| "__nonesuch is default constructible"); |
| static_assert(!std::is_copy_constructible<__nonesuch>::value, |
| "__nonesuch is copy constructible"); |
| static_assert(!std::is_assignable<__nonesuch, __nonesuch>::value, |
| "__nonesuch is assignable"); |
| static_assert(!std::is_destructible<__nonesuch>::value, |
| "__nonesuch is destructible"); |
| f({}); |
| } |
