]>
Commit | Line | Data |
---|---|---|
4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
3 | // Copyright (C) 2005, 2006 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 2, 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 COPYING. If not, write to | |
18 | // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
19 | // MA 02111-1307, USA. | |
20 | ||
21 | // As a special exception, you may use this file as part of a free | |
22 | // software library without restriction. Specifically, if other files | |
23 | // instantiate templates or use macros or inline functions from this | |
24 | // file, or you compile this file and link it with other files to | |
25 | // produce an executable, this file does not by itself cause the | |
26 | // resulting executable to be covered by the GNU General Public | |
27 | // License. This exception does not however invalidate any other | |
28 | // reasons why the executable file might be covered by the GNU General | |
29 | // Public License. | |
30 | ||
31 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
32 | ||
33 | // Permission to use, copy, modify, sell, and distribute this software | |
34 | // is hereby granted without fee, provided that the above copyright | |
35 | // notice appears in all copies, and that both that copyright notice | |
36 | // and this permission notice appear in supporting documentation. None | |
37 | // of the above authors, nor IBM Haifa Research Laboratories, make any | |
38 | // representation about the suitability of this software for any | |
39 | // purpose. It is provided "as is" without express or implied | |
40 | // warranty. | |
41 | ||
42 | /** | |
43 | * @file native_hash_set.hpp | |
44 | * Contains an adapter to Dinkumware/SGI hash tables | |
45 | */ | |
46 | ||
47 | #ifndef PB_DS_NATIVE_HASH_SET_HPP | |
48 | #define PB_DS_NATIVE_HASH_SET_HPP | |
49 | ||
d7f245b1 BK |
50 | #include <string> |
51 | #include <ext/pb_ds/detail/type_utils.hpp> | |
4569a895 AT |
52 | #include <ext/pb_ds/detail/standard_policies.hpp> |
53 | #include <native_type/assoc/native_hash_tag.hpp> | |
54 | #include <io/xml.hpp> | |
4569a895 AT |
55 | |
56 | // Default to using tr1. | |
57 | #define PB_DS_USE_TR1 1 | |
58 | ||
59 | #ifdef PB_DS_USE_TR1 | |
60 | #include <tr1/unordered_set> | |
61 | #else | |
62 | #include <ext/hash_set> | |
63 | #endif | |
64 | ||
65 | namespace pb_ds | |
66 | { | |
67 | namespace test | |
68 | { | |
69 | #ifdef PB_DS_USE_TR1 | |
70 | #define PB_DS_BASE_C_DEC \ | |
71 | std::tr1::unordered_set<Key, Hash_Fn, Eq_Fn, \ | |
72 | typename Allocator::template rebind<Key>::other> | |
73 | #else | |
74 | #define PB_DS_BASE_C_DEC \ | |
75 | __gnu_cxx::hash_set<Key, Hash_Fn, Eq_Fn, \ | |
76 | typename Allocator::template rebind<Key>::other> | |
77 | #endif | |
78 | ||
79 | template<typename Key, | |
80 | size_t Init_Size = 8, | |
d7f245b1 | 81 | typename Hash_Fn = typename pb_ds::detail::default_hash_fn<Key>::type, |
4569a895 AT |
82 | typename Eq_Fn = std::equal_to<Key>, |
83 | typename Less_Fn = std::less<Key>, | |
84 | typename Allocator = std::allocator<char> | |
85 | #ifdef PB_DS_USE_TR1 | |
86 | , bool Cache_Hash = false | |
87 | #endif | |
88 | > | |
89 | class native_hash_set : public PB_DS_BASE_C_DEC | |
90 | { | |
91 | private: | |
92 | typedef PB_DS_BASE_C_DEC base_type; | |
93 | ||
94 | public: | |
95 | typedef native_hash_tag container_category; | |
96 | ||
97 | native_hash_set() : base_type(Init_Size) { } | |
98 | ||
99 | template<typename It> | |
100 | native_hash_set(It f, It l) : base_type(f, l) { } | |
101 | ||
102 | template<typename Pred> | |
103 | inline size_t | |
104 | erase_if(Pred pred) | |
105 | { | |
106 | size_t ersd = 0; | |
107 | bool done = false; | |
108 | while (!done) | |
109 | { | |
110 | typename base_type::iterator b_it = base_type::begin(); | |
111 | typename base_type::iterator e_it = base_type::end(); | |
112 | done = true; | |
113 | while (b_it != e_it) | |
114 | { | |
115 | if (pred(*b_it)) | |
116 | { | |
117 | ++ersd; | |
118 | done = false; | |
119 | base_type::erase(*b_it); | |
120 | b_it = e_it; | |
121 | } | |
122 | else | |
123 | ++b_it; | |
124 | } | |
125 | } | |
126 | return ersd; | |
127 | } | |
128 | ||
129 | static std::string | |
130 | name() | |
131 | { | |
132 | #ifdef PB_DS_USE_TR1 | |
133 | return std::string("n_hash_set_") | |
134 | + (Cache_Hash ? std::string("cah") : std::string("ncah")); | |
135 | #else | |
136 | return std::string("n_hash_set_ncah"); | |
137 | #endif | |
138 | } | |
139 | ||
140 | static std::string | |
141 | desc() | |
142 | { | |
143 | #ifdef PB_DS_USE_TR1 | |
144 | const std::string cache_hash_desc = | |
145 | make_xml_tag("cache_hash_code", "value", | |
146 | Cache_Hash ? std::string("true") : std::string("false")); | |
147 | ||
148 | return make_xml_tag("type", "value", "std_tr1_unordered_set", | |
149 | cache_hash_desc); | |
150 | #else | |
151 | return make_xml_tag("type", "value", "__gnucxx_hash_set"); | |
152 | #endif | |
153 | } | |
154 | }; | |
155 | ||
156 | #undef PB_DS_BASE_C_DEC | |
157 | } // namespace test | |
158 | } // namespace pb_ds | |
159 | ||
160 | #endif |