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// { dg-do compile { target c++11 } }
// Copyright (C) 2011-2024 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 <string>
#include <unordered_set>
namespace
{
template<typename _Tp>
struct final_hash final
{
std::size_t operator() (const _Tp&) const noexcept
{ return 0; }
};
}
// A non-integral type:
template class std::unordered_set<std::string, final_hash<std::string>>;
// An integral type;
template class std::unordered_set<int, final_hash<int>>;
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