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

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006 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 2, 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 COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 // MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free
  22 // software library without restriction.  Specifically, if other files
  23 // instantiate templates or use macros or inline functions from this
  24 // file, or you compile this file and link it with other files to
  25 // produce an executable, this file does not by itself cause the
  26 // resulting executable to be covered by the GNU General Public
  27 // License.  This exception does not however invalidate any other
  28 // reasons why the executable file might be covered by the GNU General
  29 // Public License.
  30
  31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  32
  33 // Permission to use, copy, modify, sell, and distribute this software
  34 // is hereby granted without fee, provided that the above copyright
  35 // notice appears in all copies, and that both that copyright notice
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  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
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  40 // warranty.
  41
  42 /**
  43  * @file subscript_find_test.hpp
  44  * Contains a generic subscript_find_test test.
  45  */
  46
  47 #ifndef PB_DS_SUBSCRIPT_TEST_HPP
  48 #define PB_DS_SUBSCRIPT_TEST_HPP
  49
  50 #include <performance/time/timing_test_base.hpp>
  51 #include <common_type/assoc/string_form.hpp>
  52 #include <iterator>
  53
  54 namespace __gnu_pbds
  55 {
  56   namespace test
  57   {
  58     namespace detail
  59     {
  60       template<typename It, class Cntnr>
  61       class subscript_find_functor
  62       {
  63       public:
  64         subscript_find_functor(Cntnr& container,  It fnd_it_b,  It fnd_it_e)
  65         : m_r_container(container), m_fnd_it_b(fnd_it_b), m_fnd_it_e(fnd_it_e)
  66         { }
  67
  68         void
  69         operator()(std::size_t resolution)
  70         {
  71           for (std::size_t i = 0; i < resolution; ++i)
  72             {
  73               It fnd_it = m_fnd_it_b;
  74               while (fnd_it != m_fnd_it_e)
  75                 ++m_r_container[(fnd_it++)->first];
  76               ++fnd_it;
  77             }
  78         }
  79
  80       private:
  81         Cntnr& m_r_container;
  82         const It m_fnd_it_b;
  83         const It m_fnd_it_e;
  84       };
  85
  86     } // namespace detail
  87
  88     template<typename It>
  89     class subscript_find_test : private __gnu_pbds::test::detail::timing_test_base
  90     {
  91     public:
  92       subscript_find_test(It ins_b, It b, size_t ins_vn, size_t ins_vs,
  93                           size_t ins_vm, size_t vn, size_t vs, size_t vm)
  94       : m_ins_b(ins_b), m_fnd_b(b), m_ins_vn(ins_vn), m_ins_vs(ins_vs),
  95         m_ins_vm(ins_vm), m_fnd_vn(vn), m_fnd_vs(vs), m_fnd_vm(vm)
  96       { }
  97
  98       template<typename Cntnr>
  99       void
 100       operator()(Cntnr);
 101
 102     private:
 103       subscript_find_test(const subscript_find_test&);
 104
 105     private:
 106       const It m_ins_b;
 107       const It m_fnd_b;
 108       const size_t m_ins_vn;
 109       const size_t m_ins_vs;
 110       const size_t m_ins_vm;
 111       const size_t m_fnd_vn;
 112       const size_t m_fnd_vs;
 113       const size_t m_fnd_vm;
 114     };
 115
 116    template<typename It>
 117    template<typename Cntnr>
 118     void
 119     subscript_find_test<It>::
 120     operator()(Cntnr)
 121     {
 122       typedef xml_result_set_performance_formatter formatter_type;
 123       formatter_type res_set_fmt(string_form<Cntnr>::name(),
 124                                  string_form<Cntnr>::desc());
 125
 126       for (size_t i = 0; m_ins_vn + i*  m_ins_vs < m_ins_vm; ++i)
 127         {
 128           const size_t v = m_ins_vn + i*  m_ins_vs;
 129           const size_t fnd_size = m_fnd_vn + i*  m_fnd_vs;
 130
 131           It ins_it_b = m_ins_b;
 132           It ins_it_e = m_ins_b;
 133           std::advance(ins_it_e, v);
 134
 135           Cntnr test_container(ins_it_b, ins_it_e);
 136
 137           It fnd_it_b = m_fnd_b;
 138           It fnd_it_e = m_fnd_b;
 139           std::advance(fnd_it_e, fnd_size);
 140
 141           __gnu_pbds::test::detail::subscript_find_functor<It, Cntnr>
 142             fn(test_container, fnd_it_b, fnd_it_e);
 143
 144           const double res =
 145             __gnu_pbds::test::detail::timing_test_base::operator()(fn);
 146
 147           res_set_fmt.add_res(v, res / fnd_size);
 148         }
 149     }
 150   } // namespace test
 151 } // namespace __gnu_pbds
 152
 153 #endif
 154