3 // Copyright (C) 2005-2020 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
8 // Foundation; either version 3, or (at your option) any later
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.
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/>.
21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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
33 * @file native_hash_multimap.hpp
34 * Contains an adapter to TR1 unordered containers.
37 #ifndef PB_DS_NATIVE_HASH_MULTIMAP_HPP
38 #define PB_DS_NATIVE_HASH_MULTIMAP_HPP
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>
51 #define PB_DS_BASE_C_DEC \
52 std::tr1::unordered_multimap<Key, Data, Hash_Fn, Eq_Fn, _Alloc>
54 template<typename Key,
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
64 typedef PB_DS_BASE_C_DEC base_type;
65 typedef std::pair<Key, Data> pair_type;
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;
74 typename allocator::template rebind<pair_type>::other::const_reference
77 native_hash_multimap() : base_type(Init_Size)
81 native_hash_multimap(It f, It l) : base_type(f, l)
85 insert(const_reference r_val)
87 typedef std::pair<iterator, iterator> eq_range_t;
88 eq_range_t f = base_type::equal_range(r_val.first);
90 iterator it = f.first;
91 while (it != f.second)
93 if (it->second == r_val.second)
97 base_type::insert(r_val);
101 find(const_reference r_val)
103 typedef std::pair<iterator, iterator> eq_range_t;
104 eq_range_t f = base_type::equal_range(r_val.first);
106 iterator it = f.first;
107 while (it != f.second)
109 if (it->second == r_val.second)
113 return base_type::end();
116 inline const_iterator
117 find(const_reference r_val) const
119 typedef std::pair<const_iterator, const_iterator> eq_range_t;
120 eq_range_t f = base_type::equal_range(r_val.first);
122 const_iterator it = f.first;
123 while (it != f.second)
125 if (it->second == r_val.second)
129 return base_type::end();
134 { return std::string("n_hash_mmap"); }
138 { return make_xml_tag("type", "value", "__gnucxx_hash_multimap"); }
141 #undef PB_DS_BASE_C_DEC
144 } // namespace __gnu_pbds