| // Copyright (C) 2020-2021 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 <ranges> |
| |
| using std::ranges::subrange; |
| |
| // LWG 3282. subrange converting constructor should disallow derived to base |
| // conversions |
| |
| struct Base {}; |
| struct Derived : Base {}; |
| subrange<Derived*> sd; |
| subrange<Base*> sb = sd; // { dg-error "conversion" } |
| |
| void |
| test_lwg3404() |
| { |
| // LWG 3404. Finish removing subrange's conversions from pair-like |
| std::pair<char*, char*> p; |
| subrange sb1(p); // { dg-error "no matching function" } |
| // { dg-error "class template argument deduction" "" { target *-*-* } 38 } |
| subrange sb2(p, p.second - p.first); // { dg-error "no matching function" } |
| // { dg-error "class template argument deduction" "" { target *-*-* } 40 } |
| |
| // { dg-prune-output "in requirements with" } |
| } |