3 // Copyright (C) 2005, 2006 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
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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
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18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19 // MA 02111-1307, USA.
21 // As a special exception, you may use this file as part of a free
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31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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43 * @file standard_policies.hpp
44 * Contains standard policies for containers.
47 #ifndef PB_DS_STANDARD_POLICIES_HPP
48 #define PB_DS_STANDARD_POLICIES_HPP
51 #include <ext/pb_ds/hash_policy.hpp>
52 #include <ext/pb_ds/list_update_policy.hpp>
53 #include <ext/pb_ds/tree_policy.hpp>
54 #include <ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp>
55 #include <ext/pb_ds/trie_policy.hpp>
56 #include <ext/pb_ds/tag_and_trait.hpp>
57 #include <ext/hash_map>
63 template<typename Key>
64 struct default_hash_fn
66 typedef __gnu_cxx::hash< Key> type;
69 template<typename Key>
72 typedef std::equal_to< Key> type;
77 default_store_hash = false
80 struct default_comb_hash_fn
82 typedef __gnu_pbds::direct_mask_range_hashing<> type;
85 template<typename Comb_Hash_Fn>
86 struct default_resize_policy
89 typedef typename Comb_Hash_Fn::size_type size_type;
92 typename __conditional_type<
94 __gnu_pbds::direct_mask_range_hashing<
97 __gnu_pbds::hash_exponential_size_policy<
99 __gnu_pbds::hash_prime_size_policy>::__type
104 __gnu_pbds::hash_standard_resize_policy<
106 __gnu_pbds::hash_load_check_resize_trigger<
114 struct default_update_policy
116 typedef __gnu_pbds::move_to_front_lu_policy<> type;
119 template<typename Comb_Probe_Fn>
120 struct default_probe_fn
123 typedef typename Comb_Probe_Fn::size_type size_type;
127 typename __conditional_type<
129 __gnu_pbds::direct_mask_range_hashing<size_t>,
130 Comb_Probe_Fn>::value,
131 __gnu_pbds::linear_probe_fn<
133 __gnu_pbds::quadratic_probe_fn<
138 template<typename Key>
139 struct default_trie_e_access_traits;
141 template<typename Char, class Char_Traits>
142 struct default_trie_e_access_traits<
150 __gnu_pbds::string_trie_e_access_traits<
159 } // namespace detail
160 } // namespace __gnu_pbds
162 #endif // #ifndef PB_DS_STANDARD_POLICIES_HPP