libstdc++-v3/testsuite/util/performance/assoc/timing/multimap_insert_test.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2020 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 multimap_insert_test.hpp
  34  * Contains a generic multimap_insert_test test.
  35  */
  36
  37 #ifndef PB_DS_MULTIMAP_INSERT_TEST_HPP
  38 #define PB_DS_MULTIMAP_INSERT_TEST_HPP
  39
  40 #include <performance/time/timing_test_base.hpp>
  41 #include <performance/io/xml_formatter.hpp>
  42 #include <common_type/assoc/string_form.hpp>
  43 #include <iterator>
  44
  45 namespace __gnu_pbds
  46 {
  47   namespace test
  48   {
  49     namespace detail
  50     {
  51       template<typename It, class Cntnr, bool Native>
  52       class multimap_insert_functor
  53       {
  54       public:
  55         multimap_insert_functor(It ins_it_b, It ins_it_e)
  56         : m_ins_it_b(ins_it_b), m_ins_it_e(ins_it_e)
  57         { }
  58
  59         void
  60         operator()(std::size_t resolution)
  61         {
  62           for (std::size_t i = 0; i < resolution; ++i)
  63             {
  64               Cntnr cntnr;
  65               for (It ins_it = m_ins_it_b; ins_it != m_ins_it_e; ++ins_it)
  66                 cntnr[ins_it->first].insert(ins_it->second);
  67             }
  68         }
  69
  70       private:
  71         const It m_ins_it_b;
  72         const It m_ins_it_e;
  73       };
  74
  75       template<typename It, class Cntnr>
  76       class multimap_insert_functor<It, Cntnr, true>
  77       {
  78       public:
  79         multimap_insert_functor(It ins_it_b,  It ins_it_e)
  80         : m_ins_it_b(ins_it_b), m_ins_it_e(ins_it_e)
  81         { }
  82
  83         void
  84         operator()(std::size_t resolution)
  85         {
  86           for (std::size_t i = 0; i < resolution; ++i)
  87             {
  88               Cntnr cntnr;
  89               for (It ins_it = m_ins_it_b; ins_it != m_ins_it_e; ++ins_it)
  90                 cntnr.insert((typename Cntnr::const_reference)(*ins_it));
  91             }
  92         }
  93
  94       private:
  95         const It m_ins_it_b;
  96         const It m_ins_it_e;
  97       };
  98     } // namespace detail
  99
 100     template<typename It, bool Native>
 101     class multimap_insert_test
 102     : private __gnu_pbds::test::detail::timing_test_base
 103     {
 104     public:
 105       multimap_insert_test(It b, size_t ins_vn, size_t ins_vs, size_t ins_vm)
 106       : m_ins_b(b), m_ins_vn(ins_vn), m_ins_vs(ins_vs), m_ins_vm(ins_vm)
 107       { }
 108
 109       template<typename Cntnr>
 110       void
 111       operator()(Cntnr);
 112
 113     private:
 114       multimap_insert_test(const multimap_insert_test&);
 115
 116       const It m_ins_b;
 117       const size_t m_ins_vn;
 118       const size_t m_ins_vs;
 119       const size_t m_ins_vm;
 120     };
 121
 122     template<typename It, bool Native>
 123     template<typename Cntnr>
 124     void
 125     multimap_insert_test<It, Native>::
 126     operator()(Cntnr)
 127     {
 128       typedef xml_result_set_performance_formatter formatter_type;
 129       formatter_type res_set_fmt(string_form<Cntnr>::name(),
 130                                  string_form<Cntnr>::desc());
 131
 132       for (size_t i = 0; m_ins_vn + i * m_ins_vs < m_ins_vm; ++i)
 133         {
 134           const size_t v = m_ins_vn + i * m_ins_vs;
 135           It ins_it_b = m_ins_b;
 136           It ins_it_e = m_ins_b;
 137           std::advance(ins_it_e, v);
 138
 139           __gnu_pbds::test::detail::multimap_insert_functor<It, Cntnr, Native>
 140             fn(ins_it_b, ins_it_e);
 141
 142           const double res =
 143             __gnu_pbds::test::detail::timing_test_base::operator()(fn);
 144           res_set_fmt.add_res(v, res / v);
 145         }
 146     }
 147   } // namespace test
 148 } // namespace __gnu_pbds
 149
 150 #endif
 151