libstdc++-v3/testsuite/util/performance/assoc/timing/find_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 find_test.hpp
  34  * Contains a generic find test.
  35  */
  36
  37 #ifndef PB_DS_FIND_TEST_HPP
  38 #define PB_DS_FIND_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 LOR>
  52       class find_find_functor
  53       {
  54       public:
  55         find_find_functor(Cntnr& contnr,  It fnd_it_b,  It fnd_it_e)
  56         : m_contnr(contnr), m_fnd_it_b(fnd_it_b), m_fnd_it_e(fnd_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               It fnd_it = m_fnd_it_b;
  65               while (fnd_it != m_fnd_it_e)
  66                 ++m_contnr.find((fnd_it++)->first)->second;
  67             }
  68         }
  69
  70       private:
  71         Cntnr& m_contnr;
  72         const It m_fnd_it_b;
  73         const It m_fnd_it_e;
  74       };
  75
  76       template<typename It, class Cntnr>
  77       class find_find_functor<It, Cntnr, true>
  78       {
  79       public:
  80         find_find_functor(Cntnr& contnr,  It fnd_it_b,  It fnd_it_e)
  81         : m_contnr(contnr), m_fnd_it_b(fnd_it_b), m_fnd_it_e(fnd_it_e)
  82         { }
  83
  84         void
  85         operator()(std::size_t resolution)
  86         {
  87           It fnd_it = m_fnd_it_b;
  88           while (fnd_it != m_fnd_it_e)
  89             {
  90               for (std::size_t i = 0; i < resolution; ++i)
  91                 ++m_contnr.find(fnd_it->first)->second;
  92               ++fnd_it;
  93             }
  94         }
  95
  96       private:
  97         Cntnr& m_contnr;
  98         const It m_fnd_it_b;
  99         const It m_fnd_it_e;
 100       };
 101     } // namespace detail
 102
 103     template<typename It, bool LOR = false>
 104     class find_test : private __gnu_pbds::test::detail::timing_test_base
 105     {
 106     public:
 107       find_test(It ins_b, It fnd_it_b, size_t ins_vn, size_t ins_vs,
 108                 size_t ins_vm, size_t fnd_vn, size_t fnd_vs, size_t fnd_vm):
 109       m_ins_b(ins_b), m_fnd_it_b(fnd_it_b), m_ins_vn(ins_vn), m_ins_vs(ins_vs),
 110       m_ins_vm(ins_vm), m_fnd_vn(fnd_vn), m_fnd_vs(fnd_vs), m_fnd_vm(fnd_vm)
 111       { }
 112
 113       template<typename Cntnr>
 114       void
 115       operator()(Cntnr);
 116
 117     private:
 118       find_test(const find_test& );
 119
 120     private:
 121       const It          m_ins_b;
 122       const It          m_fnd_it_b;
 123       const size_t      m_ins_vn;
 124       const size_t      m_ins_vs;
 125       const size_t      m_ins_vm;
 126       const size_t      m_fnd_vn;
 127       const size_t      m_fnd_vs;
 128       const size_t      m_fnd_vm;
 129     };
 130
 131     template<typename It, bool LOR>
 132     template<typename Cntnr>
 133     void
 134     find_test<It, LOR>::
 135     operator()(Cntnr)
 136     {
 137       typedef string_form<Cntnr> sform_type;
 138       typedef xml_result_set_performance_formatter formatter_type;
 139       formatter_type res_set_fmt(sform_type::name(), sform_type::desc());
 140
 141       for (size_t i = 0; m_ins_vn + i * m_ins_vs < m_ins_vm; ++i)
 142         {
 143           const size_t v = m_ins_vn + i * m_ins_vs;
 144           const size_t fnd_size = m_fnd_vn + i * m_fnd_vs;
 145           It ins_it_b = m_ins_b;
 146           It ins_it_e = m_ins_b;
 147           std::advance(ins_it_e, v);
 148
 149           Cntnr test_container(ins_it_b, ins_it_e);
 150           It fnd_it_b = m_fnd_it_b;
 151           It fnd_it_e = m_fnd_it_b;
 152           std::advance(fnd_it_e, fnd_size);
 153
 154           __gnu_pbds::test::detail::find_find_functor<It, Cntnr, LOR>
 155             fn(test_container, fnd_it_b, fnd_it_e);
 156
 157           const double res =
 158             __gnu_pbds::test::detail::timing_test_base::operator()(fn);
 159           res_set_fmt.add_res(v, res / fnd_size);
 160         }
 161     }
 162   } // namespace test
 163 } // namespace __gnu_pbds
 164
 165 #endif
 166