1// { dg-do compile }
2// { dg-options "-std=gnu++11" }
3
4// Copyright (C) 2011-2015 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21#include <string>
22#include <unordered_map>
23
24namespace
25{
26  template<typename _Tp>
27  struct final_hash final
28  {
29    std::size_t operator() (const _Tp&) const noexcept
30    { return 0; }
31  };
32}
33
34// A non-integral type:
35template class std::unordered_map<std::string, int, final_hash<std::string>>;
36
37// An integral type;
38template class std::unordered_map<int, int, final_hash<int>>;
39
40