1// -*- C++ -*- 2 3// Copyright (C) 2005-2015 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// 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/>. 19 20 21// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 22 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 30// warranty. 31 32/** 33 * @file native_hash_multimap.hpp 34 * Contains an adapter to TR1 unordered containers. 35 */ 36 37#ifndef PB_DS_NATIVE_HASH_MULTIMAP_HPP 38#define PB_DS_NATIVE_HASH_MULTIMAP_HPP 39 40#include <string> 41#include <tr1/unordered_map> 42#include <ext/pb_ds/detail/type_utils.hpp> 43#include <ext/pb_ds/detail/standard_policies.hpp> 44#include <native_type/native_hash_tag.hpp> 45#include <io/xml.hpp> 46 47namespace __gnu_pbds 48{ 49 namespace test 50 { 51#define PB_DS_BASE_C_DEC \ 52 std::tr1::unordered_multimap<Key, Data, Hash_Fn, Eq_Fn, _Alloc> 53 54 template<typename Key, 55 typename Data, 56 size_t Init_Size = 8, 57 class Hash_Fn = typename __gnu_pbds::detail::default_hash_fn<Key>::type, 58 class Eq_Fn = std::equal_to<Key>, 59 class Less_Fn = std::less<Key>, 60 typename _Alloc = std::allocator<char> > 61 class native_hash_multimap : public PB_DS_BASE_C_DEC 62 { 63 private: 64 typedef PB_DS_BASE_C_DEC base_type; 65 typedef std::pair<Key, Data> pair_type; 66 67 public: 68 typedef native_hash_tag container_category; 69 typedef _Alloc allocator; 70 typedef typename base_type::iterator iterator; 71 typedef typename base_type::const_iterator const_iterator; 72 73 typedef 74 typename allocator::template rebind<pair_type>::other::const_reference 75 const_reference; 76 77 native_hash_multimap() : base_type(Init_Size) 78 { } 79 80 template<typename It> 81 native_hash_multimap(It f, It l) : base_type(f, l) 82 { } 83 84 inline void 85 insert(const_reference r_val) 86 { 87 typedef std::pair<iterator, iterator> eq_range_t; 88 eq_range_t f = base_type::equal_range(r_val.first); 89 90 iterator it = f.first; 91 while (it != f.second) 92 { 93 if (it->second == r_val.second) 94 return; 95 ++it; 96 } 97 base_type::insert(r_val); 98 } 99 100 inline iterator 101 find(const_reference r_val) 102 { 103 typedef std::pair<iterator, iterator> eq_range_t; 104 eq_range_t f = base_type::equal_range(r_val.first); 105 106 iterator it = f.first; 107 while (it != f.second) 108 { 109 if (it->second == r_val.second) 110 return it; 111 ++it; 112 } 113 return base_type::end(); 114 } 115 116 inline const_iterator 117 find(const_reference r_val) const 118 { 119 typedef std::pair<const_iterator, const_iterator> eq_range_t; 120 eq_range_t f = base_type::equal_range(r_val.first); 121 122 const_iterator it = f.first; 123 while (it != f.second) 124 { 125 if (it->second == r_val.second) 126 return it; 127 ++it; 128 } 129 return base_type::end(); 130 } 131 132 static std::string 133 name() 134 { return std::string("n_hash_mmap"); } 135 136 static std::string 137 desc() 138 { return make_xml_tag("type", "value", "__gnucxx_hash_multimap"); } 139 }; 140 141#undef PB_DS_BASE_C_DEC 142 143 } // namespace test 144} // namespace __gnu_pbds 145 146#endif 147