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a73d2fa8 | 1 | // 2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com> |
a945c346 | 2 | // Copyright (C) 2019-2024 Free Software Foundation, Inc. |
a73d2fa8 NDR |
3 | // |
4 | // This file is part of the GNU ISO C++ Library. This library is free | |
5 | // software; you can redistribute it and/or modify it under the | |
6 | // terms of the GNU General Public License as published by the | |
7 | // Free Software Foundation; either version 3, or (at your option) | |
8 | // any later version. | |
9 | ||
10 | // This library is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | // GNU General Public License for more details. | |
14 | ||
15 | // You should have received a copy of the GNU General Public License along | |
16 | // with this library; see the file COPYING3. If not see | |
17 | // <http://www.gnu.org/licenses/>. | |
18 | ||
19 | // { dg-do compile { target c++14 } } | |
20 | ||
21 | #include <type_traits> | |
22 | // Example taken from LWG2960 | |
23 | ||
24 | using std::__nonesuch; | |
25 | struct such {}; | |
26 | void f(const such&){}; | |
27 | void f(const std::__nonesuch&); | |
28 | ||
29 | int main(){ | |
30 | static_assert(!std::is_default_constructible<__nonesuch>::value, | |
31 | "__nonesuch is default constructible"); | |
32 | static_assert(!std::is_copy_constructible<__nonesuch>::value, | |
33 | "__nonesuch is copy constructible"); | |
34 | static_assert(!std::is_assignable<__nonesuch, __nonesuch>::value, | |
35 | "__nonesuch is assignable"); | |
36 | static_assert(!std::is_destructible<__nonesuch>::value, | |
37 | "__nonesuch is destructible"); | |
38 | f({}); | |
39 | } |