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52066eae | 1 | // { dg-do compile { target c++11 } } |
5db25ab1 | 2 | |
83ffe9cd | 3 | // Copyright (C) 2011-2023 Free Software Foundation, Inc. |
5db25ab1 DK |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | // | |
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | // | |
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
20 | #include <type_traits> | |
21 | ||
22 | struct A { }; | |
0ea89b15 JW |
23 | struct B : A { |
24 | #if __cpp_aggregate_bases && __cpp_aggregate_paren_init | |
25 | // A user-declared constructor prevents B from being an aggregate. | |
26 | // Otherwise 'B&& b{A{}};' becomes valid in C++17 (__cpp_aggregate_bases), | |
27 | // and 'B&& b(A{});' becomes valid in C++17 (__cpp_aggregate_paren_init). | |
28 | B(); | |
29 | #endif | |
30 | }; | |
5db25ab1 DK |
31 | |
32 | // libstdc++/51185 | |
33 | void f() | |
34 | { | |
35 | static_assert(!std::is_constructible<B &&, A>(), ""); | |
36 | static_assert(!std::is_constructible<B const &&, A>(), ""); | |
37 | static_assert(!std::is_constructible<B const &&, A const>(), ""); | |
38 | static_assert(!std::is_constructible<B volatile &&, A>(), ""); | |
39 | static_assert(!std::is_constructible<B volatile &&, A volatile>(), ""); | |
40 | static_assert(!std::is_constructible<B const volatile &&, A>(), ""); | |
41 | static_assert(!std::is_constructible<B const volatile &&, A const>(), ""); | |
42 | static_assert(!std::is_constructible<B const volatile &&, A volatile>(), ""); | |
43 | static_assert(!std::is_constructible<B const volatile &&, | |
44 | A const volatile>(), ""); | |
45 | } |