3 // Copyright (C) 2005, 2006, 2007, 2009, 2011 Free Software Foundation, Inc.
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
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.
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/>.
21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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
33 * @file native_hash_map.hpp
34 * Contains an adapter to TR1 unordered containers.
37 #ifndef PB_DS_NATIVE_HASH_MAP_HPP
38 #define PB_DS_NATIVE_HASH_MAP_HPP
41 #include <ext/pb_ds/detail/type_utils.hpp>
42 #include <ext/pb_ds/detail/standard_policies.hpp>
43 #include <native_type/native_hash_tag.hpp>
45 #include <tr1/unordered_map>
51 #define PB_DS_BASE_C_DEC \
52 std::tr1::__unordered_map<Key, Data, Hash_Fn, Eq_Fn, \
53 typename _Alloc::template rebind<std::pair<const Key, Data> >::other, Cache_Hash>
55 template<typename Key,
58 typename Hash_Fn = typename __gnu_pbds::detail::default_hash_fn<Key>::type,
59 typename Eq_Fn = std::equal_to<Key>,
60 typename Less_Fn = std::less<Key>,
61 typename _Alloc = std::allocator<char>, bool Cache_Hash = false
63 class native_hash_map : public PB_DS_BASE_C_DEC
66 typedef PB_DS_BASE_C_DEC base_type;
69 typedef native_hash_tag container_category;
72 native_hash_map() : base_type(Init_Size) { }
75 native_hash_map(It f, It l) : base_type(f, l) { }
80 return std::string("n_hash_map_")
81 + (Cache_Hash ? std::string("cah") : std::string("ncah"));
87 const std::string cache_hash_desc =
88 make_xml_tag("cache_hash_code",
90 (Cache_Hash ? std::string("true") : std::string("false")));
92 return make_xml_tag("type", "value", "std_tr1_unordered_map",
97 #undef PB_DS_BASE_C_DEC
100 } // namespace __gnu_pbds