1// -*- C++ -*-
2
3// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the terms
7// of the GNU General Public License as published by the Free Software
8// Foundation; either version 3, or (at your option) any later
9// version.
10
11// This library is distributed in the hope that it will be useful, but
12// WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14// General Public License for more details.
15
16// You should have received a copy of the GNU General Public License
17// along with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20
21// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
22
23// Permission to use, copy, modify, sell, and distribute this software
24// is hereby granted without fee, provided that the above copyright
25// notice appears in all copies, and that both that copyright notice
26// and this permission notice appear in supporting documentation. None
27// of the above authors, nor IBM Haifa Research Laboratories, make any
28// representation about the suitability of this software for any
29// purpose. It is provided "as is" without express or implied
30// warranty.
31
32/**
33 * @file trie_supports_order_statistics.hpp
34 * Checks whether a trie supports order stats.
35 */
36
37#ifndef PB_DS_TRIE_SUPPORTS_ORDER_STATISTICS_HPP
38#define PB_DS_TRIE_SUPPORTS_ORDER_STATISTICS_HPP
39
40#include <ext/pb_ds/trie_policy.hpp>
41
42namespace __gnu_pbds
43{
44
45  namespace test
46  {
47
48    namespace detail
49    {
50
51      template<typename Tree_Cntnr>
52      struct trie_supports_order_statistics
53      {
54	enum
55	  {
56	    value = __gnu_pbds::detail::is_same<
57            typename Tree_Cntnr::node_update,
58            __gnu_pbds::trie_order_statistics_node_update<
59            typename Tree_Cntnr::const_node_iterator,
60            typename Tree_Cntnr::node_iterator,
61            typename Tree_Cntnr::e_access_traits,
62            typename Tree_Cntnr::allocator_type> >::value
63	  };
64      };
65
66    } // namespace detail
67
68  } // namespace test
69
70} // namespace __gnu_pbds
71
72#endif // #ifndef PB_DS_TRIE_SUPPORTS_ORDER_STATISTICS_HPP
73
74