libstdc++-v3/testsuite/util/common_type/assoc/template_policy.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2022 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 template_policy.hpp
  34  * Contains template versions of policies.
  35  */
  36
  37 #ifndef PB_DS_TEMPLATE_POLICY_HPP
  38 #define PB_DS_TEMPLATE_POLICY_HPP
  39
  40 #include <ext/typelist.h>
  41 #include <ext/pb_ds/hash_policy.hpp>
  42 #include <ext/pb_ds/tree_policy.hpp>
  43 #include <ext/pb_ds/list_update_policy.hpp>
  44
  45 namespace __gnu_pbds
  46 {
  47   namespace test
  48   {
  49     template<typename _Alloc>
  50     struct direct_mask_range_hashing_t_
  51     : public __gnu_pbds::direct_mask_range_hashing<typename _Alloc::size_type>
  52     {
  53       typedef typename _Alloc::size_type size_type;
  54       typedef __gnu_pbds::direct_mask_range_hashing<size_type> base_type;
  55     };
  56
  57     template<typename _Alloc>
  58     struct direct_mod_range_hashing_t_
  59     : public __gnu_pbds::direct_mod_range_hashing<typename _Alloc::size_type>
  60     {
  61       typedef typename _Alloc::size_type size_type;
  62       typedef __gnu_pbds::direct_mod_range_hashing<size_type> base_type;
  63     };
  64
  65     template<typename _Alloc,
  66              typename _Alloc::size_type Min_Load_Nom,
  67              typename _Alloc::size_type Min_Load_Denom,
  68              typename _Alloc::size_type Max_Load_Nom,
  69              typename _Alloc::size_type Max_Load_Denom,
  70              bool External_Access>
  71     struct hash_load_check_resize_trigger_t_
  72     : public __gnu_pbds::hash_load_check_resize_trigger<External_Access,
  73                                                    typename _Alloc::size_type>
  74     {
  75       typedef typename _Alloc::size_type size_type;
  76       typedef __gnu_pbds::hash_load_check_resize_trigger<External_Access, size_type>  base_type;
  77
  78       inline
  79       hash_load_check_resize_trigger_t_()
  80       : base_type(static_cast<float>(Min_Load_Nom) / static_cast<float>(Min_Load_Denom), static_cast<float>(Max_Load_Nom) / static_cast<float>(Max_Load_Denom))
  81       { }
  82
  83       enum
  84         {
  85           get_set_loads = External_Access,
  86           get_set_load = false
  87         };
  88     };
  89
  90     template<typename _Alloc,
  91              typename _Alloc::size_type Load_Nom,
  92              typename _Alloc::size_type Load_Denom,
  93              bool External_Access>
  94     struct cc_hash_max_collision_check_resize_trigger_t_
  95     : public __gnu_pbds::cc_hash_max_collision_check_resize_trigger<External_Access,
  96       typename _Alloc::size_type>
  97     {
  98       typedef typename _Alloc::size_type size_type;
  99       typedef __gnu_pbds::cc_hash_max_collision_check_resize_trigger<External_Access, size_type> base_type;
 100
 101       inline
 102       cc_hash_max_collision_check_resize_trigger_t_()
 103       : base_type(static_cast<float>(Load_Nom) / static_cast<float>(Load_Denom))
 104       { }
 105
 106       enum
 107         {
 108           get_set_load = External_Access,
 109           get_set_loads = false
 110         };
 111     };
 112
 113     struct hash_prime_size_policy_t_ : public __gnu_pbds::hash_prime_size_policy
 114     { };
 115
 116     template<typename _Alloc>
 117     struct hash_exponential_size_policy_t_
 118     : public __gnu_pbds::hash_exponential_size_policy<typename _Alloc::size_type>
 119     { };
 120
 121     template<typename Key, typename _Alloc>
 122     struct linear_probe_fn_t_
 123     : public __gnu_pbds::linear_probe_fn<typename _Alloc::size_type>
 124     { };
 125
 126     template<typename Key, typename _Alloc>
 127     struct quadratic_probe_fn_t_
 128     : public __gnu_pbds::quadratic_probe_fn<typename _Alloc::size_type>
 129     { };
 130
 131     template<typename _Alloc, typename _Alloc::size_type Max_Count>
 132     struct lu_counter_policy_t_
 133     : public __gnu_pbds::lu_counter_policy<Max_Count, _Alloc>
 134     {
 135       typedef __gnu_pbds::lu_counter_policy<Max_Count, _Alloc> base_type;
 136     };
 137
 138     struct lu_move_to_front_policy_t_
 139     : public __gnu_pbds::lu_move_to_front_policy<>
 140     { };
 141   } // namespace test
 142 } // namespace __gnu_pbds
 143
 144 #endif
 145