libstdc++-v3/testsuite/util/native_type/native_hash_map.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_hash_map.hpp
  34  * Contains an adapter to TR1 unordered containers.
  35  */
  36
  37 #ifndef PB_DS_NATIVE_HASH_MAP_HPP
  38 #define PB_DS_NATIVE_HASH_MAP_HPP
  39
  40 #include <string>
  41 #include <ext/pb_ds/detail/type_utils.hpp>
  42 #include <ext/pb_ds/detail/standard_policies.hpp>
  43 #include <native_type/native_hash_tag.hpp>
  44 #include <io/xml.hpp>
  45 #include <tr1/unordered_map>
  46
  47 namespace __gnu_pbds
  48 {
  49   namespace test
  50   {
  51 #define PB_DS_BASE_C_DEC \
  52     std::tr1::__unordered_map<Key, Data, Hash_Fn, Eq_Fn, \
  53     typename _Alloc::template rebind<std::pair<const Key, Data> >::other, Cache_Hash>
  54
  55     template<typename Key,
  56              typename Data,
  57              size_t Init_Size = 8,
  58              typename Hash_Fn = typename __gnu_pbds::detail::default_hash_fn<Key>::type,
  59              typename Eq_Fn = std::equal_to<Key>,
  60              typename Less_Fn = std::less<Key>,
  61              typename _Alloc = std::allocator<char>, bool Cache_Hash = false
  62              >
  63     class native_hash_map : public PB_DS_BASE_C_DEC
  64     {
  65     private:
  66       typedef PB_DS_BASE_C_DEC base_type;
  67
  68     public:
  69       typedef native_hash_tag container_category;
  70
  71     public:
  72       native_hash_map() : base_type(Init_Size) { }
  73
  74       template<typename It>
  75       native_hash_map(It f, It l) : base_type(f, l) { }
  76
  77       static std::string
  78       name()
  79       {
  80         return std::string("n_hash_map_")
  81                + (Cache_Hash ? std::string("cah") : std::string("ncah"));
  82       }
  83
  84       static std::string
  85       desc()
  86       {
  87         const std::string cache_hash_desc =
  88         make_xml_tag("cache_hash_code",
  89                      "value",
  90                     (Cache_Hash ? std::string("true") : std::string("false")));
  91
  92         return make_xml_tag("type", "value", "std_tr1_unordered_map",
  93                             cache_hash_desc);
  94       }
  95     };
  96
  97 #undef PB_DS_BASE_C_DEC
  98
  99   } // namespace test
 100 } // namespace __gnu_pbds
 101
 102 #endif
 103