libstdc++-v3/testsuite/util/native_type/assoc/native_hash_multimap.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2007 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 2, 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 COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 // MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free
  22 // software library without restriction.  Specifically, if other files
  23 // instantiate templates or use macros or inline functions from this
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  25 // produce an executable, this file does not by itself cause the
  26 // resulting executable to be covered by the GNU General Public
  27 // License.  This exception does not however invalidate any other
  28 // reasons why the executable file might be covered by the GNU General
  29 // Public License.
  30
  31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  32
  33 // Permission to use, copy, modify, sell, and distribute this software
  34 // is hereby granted without fee, provided that the above copyright
  35 // notice appears in all copies, and that both that copyright notice
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  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
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  40 // warranty.
  41
  42 /**
  43  * @file native_hash_multimap.hpp
  44  * Contains an adapter to TR1 unordered containers.
  45  */
  46
  47 #ifndef PB_DS_NATIVE_HASH_MULTIMAP_HPP
  48 #define PB_DS_NATIVE_HASH_MULTIMAP_HPP
  49
  50 #include <string>
  51 #include <tr1/unordered_map>
  52 #include <ext/pb_ds/detail/type_utils.hpp>
  53 #include <ext/pb_ds/detail/standard_policies.hpp>
  54 #include <native_type/assoc/native_hash_tag.hpp>
  55 #include <io/xml.hpp>
  56
  57 namespace __gnu_pbds
  58 {
  59   namespace test
  60   {
  61 #define PB_DS_BASE_C_DEC \
  62     std::tr1::unordered_multimap<Key, Data, Hash_Fn, Eq_Fn, Allocator>
  63
  64     template<typename Key,
  65              typename Data,
  66              size_t Init_Size = 8,
  67        class Hash_Fn = typename __gnu_pbds::detail::default_hash_fn<Key>::type,
  68              class Eq_Fn = std::equal_to<Key>,
  69              class Less_Fn = std::less<Key>,
  70              class Allocator = std::allocator<char> >
  71     class native_hash_multimap : public PB_DS_BASE_C_DEC
  72     {
  73     private:
  74       typedef PB_DS_BASE_C_DEC                  base_type;
  75       typedef std::pair<Key, Data>              pair_type;
  76
  77     public:
  78       typedef native_hash_tag                   container_category;
  79       typedef Allocator                         allocator;
  80       typedef typename base_type::iterator      iterator;
  81       typedef typename base_type::const_iterator const_iterator;
  82
  83       typedef
  84       typename allocator::template rebind<pair_type>::other::const_reference
  85       const_reference;
  86
  87       native_hash_multimap() : base_type(Init_Size)
  88       { }
  89
  90       template<typename It>
  91       native_hash_multimap(It f, It l) : base_type(f, l)
  92       { }
  93
  94       inline void
  95       insert(const_reference r_val)
  96       {
  97         typedef std::pair<iterator, iterator> eq_range_t;
  98         eq_range_t f = base_type::equal_range(r_val.first);
  99
 100         iterator it = f.first;
 101         while (it != f.second)
 102           {
 103             if (it->second == r_val.second)
 104               return;
 105             ++it;
 106           }
 107         base_type::insert(r_val);
 108       }
 109
 110       inline iterator
 111       find(const_reference r_val)
 112       {
 113         typedef std::pair<iterator, iterator> eq_range_t;
 114         eq_range_t f = base_type::equal_range(r_val.first);
 115
 116         iterator it = f.first;
 117         while (it != f.second)
 118           {
 119             if (it->second == r_val.second)
 120               return it;
 121             ++it;
 122           }
 123         return base_type::end();
 124       }
 125
 126       inline const_iterator
 127       find(const_reference r_val) const
 128       {
 129         typedef std::pair<const_iterator, const_iterator> eq_range_t;
 130         eq_range_t f = base_type::equal_range(r_val.first);
 131
 132         const_iterator it = f.first;
 133         while (it != f.second)
 134           {
 135             if (it->second == r_val.second)
 136               return it;
 137             ++it;
 138           }
 139         return base_type::end();
 140       }
 141
 142       static std::string
 143       name()
 144       { return std::string("n_hash_mmap"); }
 145
 146       static std::string
 147       desc()
 148       { return make_xml_tag("type", "value", "__gnucxx_hash_multimap"); }
 149     };
 150
 151 #undef PB_DS_BASE_C_DEC
 152
 153   } // namespace test
 154 } // namespace __gnu_pbds
 155
 156 #endif