| // Copyright (C) 2016-2021 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-do compile { target c++11 } } |
| |
| // PR libstdc++/69293 |
| |
| #include <tuple> |
| #include <memory> |
| |
| using std::allocator; |
| using std::allocator_arg_t; |
| using std::uses_allocator; |
| using std::tuple; |
| using std::is_constructible; |
| |
| struct X |
| { |
| using allocator_type = allocator<int>; |
| }; |
| |
| using alloc_type = X::allocator_type; |
| |
| static_assert(uses_allocator<X, alloc_type>{}, ""); |
| static_assert(!is_constructible<X, allocator_arg_t, alloc_type>{}, ""); |
| static_assert(!is_constructible<X, alloc_type>{}, ""); |
| |
| void |
| test01() |
| { |
| alloc_type a; |
| std::tuple<X> t(std::allocator_arg, a); // this is required to be ill-formed |
| // { dg-error "failed: .* uses_allocator is true" "" { target *-*-* } 0 } |
| // { dg-error "too many initializers for 'X'" "" { target c++2a } 0 } |
| } |