| // { dg-do compile { target c++11 } } |
| |
| // Copyright (C) 2015-2021 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 <type_traits> |
| |
| struct ExplicitDefault |
| { |
| explicit ExplicitDefault() {} |
| }; |
| |
| struct ExplicitDefaultDefault |
| { |
| explicit ExplicitDefaultDefault() = default; |
| }; |
| |
| void test01() |
| { |
| using std::__is_implicitly_default_constructible; |
| // Positive tests. |
| static_assert(__is_implicitly_default_constructible<int>::value, ""); |
| // Negative tests. |
| static_assert(!__is_implicitly_default_constructible<int&>::value, ""); |
| static_assert(!__is_implicitly_default_constructible< |
| ExplicitDefault>::value, ""); |
| static_assert(!__is_implicitly_default_constructible< |
| ExplicitDefaultDefault>::value, ""); |
| } |
