| // Copyright (C) 2019-2021 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/>. |
| |
| // { dg-options "-std=gnu++2a" } |
| // { dg-do compile { target c++2a } } |
| |
| #include <concepts> |
| |
| static_assert( std::regular<int> ); |
| static_assert( std::regular<int*> ); |
| static_assert( ! std::regular<int&> ); |
| static_assert( ! std::regular<void> ); |
| static_assert( ! std::regular<void()> ); |
| static_assert( ! std::regular<void() noexcept> ); |
| static_assert( ! std::regular<void() const> ); |
| |
| struct Trivial { }; |
| static_assert( ! std::regular<Trivial> ); |
| |
| struct NotTrivial |
| { |
| NotTrivial() { } |
| ~NotTrivial() { } |
| }; |
| static_assert( ! std::regular<NotTrivial> ); |
| |
| struct NotDefaultConstructible |
| { |
| NotDefaultConstructible(int) { } |
| }; |
| static_assert( ! std::regular<NotDefaultConstructible> ); |
| |
| struct HasReference |
| { |
| int& ref; |
| }; |
| static_assert( ! std::regular<HasReference> ); |
| |
| struct HasEq { }; |
| bool operator==(HasEq, HasEq) { return true; } |
| #ifdef __cpp_impl_three_way_comparison |
| static_assert( std::regular<HasEq> ); |
| #else |
| static_assert( ! std::regular<HasEq> ); |
| #endif |
| |
| struct HasEqNeq { }; |
| bool operator==(HasEqNeq, HasEqNeq) { return true; } |
| bool operator!=(HasEqNeq, HasEqNeq) { return false; } |
| static_assert( std::regular<HasEqNeq> ); |