libstdc++-v3/testsuite/util/performance/priority_queue/timing/push_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
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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 push_test.hpp
  44  * Contains a push performance test.
  45  */
  46
  47 #ifndef PB_DS_PUSH_TEST_HPP
  48 #define PB_DS_PUSH_TEST_HPP
  49
  50 #include <performance/time/timing_test_base.hpp>
  51 #include <ext/pb_ds/detail/type_utils.hpp>
  52 #include <performance/io/xml_formatter.hpp>
  53 #include <common_type/priority_queue/string_form.hpp>
  54 #include <iterator>
  55
  56 namespace __gnu_pbds
  57 {
  58   namespace test
  59   {
  60     namespace detail
  61     {
  62       template<typename It, class Cntnr>
  63       class push_push_functor
  64       {
  65       public:
  66         push_push_functor(It ins_it_b,  It ins_it_e)
  67         : m_ins_it_b(ins_it_b), m_ins_it_e(ins_it_e)
  68         { }
  69
  70         void
  71         operator()(std::size_t resolution)
  72         {
  73           for (std::size_t i = 0; i < resolution; ++i)
  74             {
  75               Cntnr cntnr;
  76               for (It ins_it = m_ins_it_b; ins_it != m_ins_it_e; ++ins_it)
  77                 cntnr.push((typename Cntnr::const_reference)(ins_it->first));
  78             }
  79         }
  80
  81       private:
  82         const It m_ins_it_b;
  83         const It m_ins_it_e;
  84       };
  85     } // namespace detail
  86
  87     template<typename It>
  88     class push_test : private __gnu_pbds::test::detail::timing_test_base
  89     {
  90     public:
  91       push_test(It ins_b, size_t ins_vn, size_t ins_vs, size_t ins_vm)
  92       : m_ins_b(ins_b), m_ins_vn(ins_vn), m_ins_vs(ins_vs), m_ins_vm(ins_vm)
  93       { }
  94
  95       template<typename Cntnr>
  96       void
  97       operator()(Cntnr);
  98
  99     private:
 100       push_test(const push_test& );
 101
 102       template<typename Cntnr>
 103       void
 104       push(Cntnr, It ins_it_b, It ins_it_e);
 105
 106       const It m_ins_b;
 107       const size_t m_ins_vn;
 108       const size_t m_ins_vs;
 109       const size_t m_ins_vm;
 110     };
 111
 112
 113     template<typename It>
 114     template<typename Cntnr>
 115     void
 116     push_test<It>::
 117     operator()(Cntnr)
 118     {
 119       typedef xml_result_set_performance_formatter formatter_type;
 120       formatter_type res_set_fmt(string_form<Cntnr>::name(),
 121                                  string_form<Cntnr>::desc());
 122
 123       for (size_t i = 0; m_ins_vn + i * m_ins_vs < m_ins_vm; ++i)
 124         {
 125           const size_t v = m_ins_vn + i * m_ins_vs;
 126           It ins_it_b = m_ins_b;
 127           It ins_it_e = m_ins_b;
 128           std::advance(ins_it_e, v);
 129
 130           __gnu_pbds::test::detail::push_push_functor<It, Cntnr>
 131             fn(ins_it_b, ins_it_e);
 132
 133           const double res =
 134             __gnu_pbds::test::detail::timing_test_base::operator()(fn);
 135
 136           res_set_fmt.add_res(v, res / v);
 137         }
 138     }
 139
 140     template<typename It>
 141     template<typename Cntnr>
 142     void
 143     push_test<It>::
 144     push(Cntnr, It ins_it_b, It ins_it_e)
 145     {
 146       Cntnr cntnr;
 147       for (It ins_it = ins_it_b; ins_it != ins_it_e; ++ins_it)
 148         cntnr.push((typename Cntnr::const_reference)(*ins_it));
 149     }
 150   } // namespace test
 151 } // namespace __gnu_pbds
 152
 153 #endif
 154