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 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 26 27 // Permission to use, copy, modify, sell, and distribute this software 28 // is hereby granted without fee, provided that the above copyright 29 // notice appears in all copies, and that both that copyright notice 30 // and this permission notice appear in supporting documentation. None 31 // of the above authors, nor IBM Haifa Research Laboratories, make any 32 // representation about the suitability of this software for any 33 // purpose. It is provided "as is" without express or implied 34 // warranty. 35 36 /** 37 * @file sample_trie_e_access_traits.hpp 38 * Contains a sample probe policy. 39 */ 40 41 #ifndef PB_DS_SAMPLE_TRIE_E_ACCESS_TRAITS_HPP 42 #define PB_DS_SAMPLE_TRIE_E_ACCESS_TRAITS_HPP 43 44 // A sample trie element-access traits. 45 class sample_trie_e_access_traits 46 { 47 48 public: 49 50 // Size type. 51 typedef size_t size_type; 52 53 // Key type. 54 typedef std::string key_type; 55 56 // Const key reference type. 57 typedef 58 typename Allocator::template rebind< 59 key_type>::other::const_reference 60 const_key_reference; 61 62 // Element const iterator type. 63 typedef std::string::const_iterator const_iterator; 64 65 // Element type. 66 typedef char e_type; 67 68 enum 69 { 70 max_size = 4 71 }; 72 73 public: 74 75 // Returns a const_iterator to the first element of r_key. 76 inline static const_iterator 77 begin(const_key_reference r_key); 78 79 // Returns a const_iterator to the after-last element of r_key. 80 inline static const_iterator 81 end(const_key_reference r_key); 82 83 // Maps an element to a position. 84 inline static size_type 85 e_pos(e_type e); 86 87 }; 88 89 #endif // #ifndef PB_DS_SAMPLE_TRIE_E_ACCESS_TRAITS_HPP 90
