| // Copyright (C) 2012-2021 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 run { target c++11 } } |
| |
| #include <unordered_set> |
| #include <memory> |
| #include <testsuite_hooks.h> |
| #include <testsuite_allocator.h> |
| |
| struct T { int i; }; |
| |
| struct hash |
| { |
| std::size_t operator()(const T t) const noexcept |
| { return t.i; } |
| }; |
| |
| struct equal_to |
| { |
| bool operator()(const T& lhs, const T& rhs) const noexcept |
| { return lhs.i == rhs.i; } |
| }; |
| |
| |
| bool operator==(const T& l, const T& r) { return l.i == r.i; } |
| bool operator<(const T& l, const T& r) { return l.i < r.i; } |
| |
| using __gnu_test::SimpleAllocator; |
| |
| template class std::unordered_set<T, hash, equal_to, SimpleAllocator<T>>; |
| |
| void test01() |
| { |
| typedef SimpleAllocator<T> alloc_type; |
| typedef std::allocator_traits<alloc_type> traits_type; |
| typedef std::unordered_set<T, hash, equal_to, alloc_type> test_type; |
| test_type v(alloc_type{}); |
| v.insert(T()); |
| VERIFY( v.max_size() < traits_type::max_size(v.get_allocator()) ); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |