// -*- C++ -*- // Copyright (C) 2005, 2006 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 2, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // You should have received a copy of the GNU General Public License // along with this library; see the file COPYING. If not, write to // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, // MA 02111-1307, USA. // As a special exception, you may use this file as part of a free // software library without restriction. Specifically, if other files // instantiate templates or use macros or inline functions from this // file, or you compile this file and link it with other files to // produce an executable, this file does not by itself cause the // resulting executable to be covered by the GNU General Public // License. This exception does not however invalidate any other // reasons why the executable file might be covered by the GNU General // Public License. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice // and this permission notice appear in supporting documentation. None // of the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied // warranty. /** * @file standard_policies.hpp * Contains standard policies for containers. */ #ifndef PB_DS_STANDARD_POLICIES_HPP #define PB_DS_STANDARD_POLICIES_HPP #include <memory> #include <ext/pb_ds/hash_policy.hpp> #include <ext/pb_ds/list_update_policy.hpp> #include <ext/pb_ds/tree_policy.hpp> #include <ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp> #include <ext/pb_ds/trie_policy.hpp> #include <ext/pb_ds/tag_and_trait.hpp> #include <ext/hash_map> namespace pb_ds { namespace detail { template<typename Key> struct default_hash_fn { typedef __gnu_cxx::hash< Key> type; }; template<typename Key> struct default_eq_fn { typedef std::equal_to< Key> type; }; enum { default_store_hash = false }; struct default_comb_hash_fn { typedef pb_ds::direct_mask_range_hashing<> type; }; template<typename Comb_Hash_Fn> struct default_resize_policy { private: typedef typename Comb_Hash_Fn::size_type size_type; typedef typename __conditional_type< is_same< pb_ds::direct_mask_range_hashing< size_type>, Comb_Hash_Fn>::value, pb_ds::hash_exponential_size_policy< size_type>, pb_ds::hash_prime_size_policy>::__type size_policy_type; public: typedef pb_ds::hash_standard_resize_policy< size_policy_type, pb_ds::hash_load_check_resize_trigger< false, size_type>, false, size_type> type; }; struct default_update_policy { typedef pb_ds::move_to_front_lu_policy<> type; }; template<typename Comb_Probe_Fn> struct default_probe_fn { private: typedef typename Comb_Probe_Fn::size_type size_type; public: typedef typename __conditional_type< is_same< pb_ds::direct_mask_range_hashing<size_t>, Comb_Probe_Fn>::value, pb_ds::linear_probe_fn< size_type>, pb_ds::quadratic_probe_fn< size_type> >::__type type; }; template<typename Key> struct default_trie_e_access_traits; template<typename Char, class Char_Traits> struct default_trie_e_access_traits< std::basic_string< Char, Char_Traits, std::allocator< char> > > { typedef pb_ds::string_trie_e_access_traits< std::basic_string< Char, Char_Traits, std::allocator< char> > > type; }; } // namespace detail } // namespace pb_ds #endif // #ifndef PB_DS_STANDARD_POLICIES_HPP