libstdc++-v3/testsuite/util/native_type/native_multimap.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2024 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_multimap.hpp
  34  * Contains an adapter to std::multimap
  35  */
  36
  37 #ifndef PB_DS_NATIVE_MULTIMAP_HPP
  38 #define PB_DS_NATIVE_MULTIMAP_HPP
  39
  40 #include <map>
  41 #include <string>
  42 #include <ext/pb_ds/detail/type_utils.hpp>
  43 #include <native_type/native_tree_tag.hpp>
  44
  45 namespace __gnu_pbds
  46 {
  47   namespace test
  48   {
  49 #define PB_DS_BASE_C_DEC \
  50     std::multimap<Key, Data, Less_Fn, \
  51       typename _Alloc::template rebind<std::pair<const Key, Data> >::other>
  52
  53     template<typename Key, typename Data, class Less_Fn = std::less<Key>,
  54              typename _Alloc = std::allocator<char> >
  55     class native_multimap : public PB_DS_BASE_C_DEC
  56     {
  57     private:
  58       typedef PB_DS_BASE_C_DEC base_type;
  59
  60     public:
  61       typedef native_tree_tag container_category;
  62
  63       typedef _Alloc allocator;
  64
  65       typedef
  66       typename _Alloc::template rebind<
  67         std::pair<Key, Data> >::other::const_reference
  68       const_reference;
  69
  70       typedef typename base_type::iterator iterator;
  71       typedef typename base_type::const_iterator const_iterator;
  72
  73       native_multimap()  { }
  74
  75       template<typename It>
  76       native_multimap(It f, It l) : base_type(f, l)
  77       { }
  78
  79       inline void
  80       insert(const_reference r_val)
  81       {
  82         typedef std::pair<iterator, iterator> eq_range_t;
  83         eq_range_t f = base_type::equal_range(r_val.first);
  84
  85         iterator it = f.first;
  86         while (it != f.second)
  87           {
  88             if (it->second == r_val.second)
  89               return;
  90             ++it;
  91           }
  92         base_type::insert(r_val);
  93       }
  94
  95       inline iterator
  96       find(const_reference r_val)
  97       {
  98         typedef std::pair<iterator, iterator> eq_range_t;
  99         eq_range_t f = base_type::equal_range(r_val.first);
 100
 101         iterator it = f.first;
 102         while (it != f.second)
 103           {
 104             if (it->second == r_val.second)
 105               return it;
 106             ++it;
 107           }
 108
 109         return base_type::end();
 110       }
 111
 112       inline const_iterator
 113       find(const_reference r_val) const
 114       {
 115         typedef std::pair<const_iterator, const_iterator> eq_range_t;
 116         eq_range_t f = base_type::equal_range(r_val.first);
 117
 118         const_iterator it = f.first;
 119         while (it != f.second)
 120           {
 121             if (it->second == r_val.second)
 122               return it;
 123             ++it;
 124           }
 125         return base_type::end();
 126       }
 127
 128       static std::string
 129       name()
 130       { return std::string("n_mmap"); }
 131
 132       static std::string
 133       desc()
 134       { return make_xml_tag("type", "value", "std_multimap"); }
 135     };
 136
 137 #undef PB_DS_BASE_C_DEC
 138 } // namespace test
 139
 140 } // namespace __gnu_pbds
 141
 142 #endif // #ifndef PB_DS_NATIVE_MULTIMAP_HPP