libstdc++-v3/testsuite/util/performance/assoc/timing/insert_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
  36 // and this permission notice appear in supporting documentation. None
  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
  39 // purpose. It is provided "as is" without express or implied
  40 // warranty.
  41
  42 /**
  43  * @file insert_test.hpp
  44  * Contains an insert performance test.
  45  */
  46
  47 #ifndef PB_DS_INSERT_TEST_HPP
  48 #define PB_DS_INSERT_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/assoc/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 insert_insert_functor
  64       {
  65       public:
  66         insert_insert_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.insert((typename Cntnr::const_reference)(*ins_it));
  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 insert_test : private __gnu_pbds::test::detail::timing_test_base
  89     {
  90     public:
  91       insert_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       insert_test(const insert_test& );
 101
 102       template<typename Cntnr>
 103       void
 104       insert(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     template<typename It>
 113     template<typename Cntnr>
 114     void
 115     insert_test<It>::
 116     operator()(Cntnr)
 117     {
 118       typedef xml_result_set_performance_formatter formatter_type;
 119       formatter_type res_set_fmt(string_form<Cntnr>::name(),
 120                                  string_form<Cntnr>::desc());
 121
 122       for (size_t i = 0; m_ins_vn + i*  m_ins_vs < m_ins_vm; ++i)
 123         {
 124           const size_t v = m_ins_vn + i*  m_ins_vs;
 125           It ins_it_b = m_ins_b;
 126           It ins_it_e = m_ins_b;
 127           std::advance(ins_it_e, v);
 128
 129           __gnu_pbds::test::detail::insert_insert_functor<It, Cntnr>
 130             fn(ins_it_b, ins_it_e);
 131
 132           const double res =
 133             __gnu_pbds::test::detail::timing_test_base::operator()(fn);
 134
 135           res_set_fmt.add_res(v, res / v);
 136         }
 137     }
 138
 139     template<typename It>
 140     template<typename Cntnr>
 141     void
 142     insert_test<It>::
 143     insert(Cntnr, It ins_it_b, It ins_it_e)
 144     {
 145       Cntnr cntnr;
 146       for (It ins_it = ins_it_b; ins_it != ins_it_e; ++ins_it)
 147         cntnr.insert((typename Cntnr::const_reference)(*ins_it));
 148     }
 149   } // namespace test
 150 } // namespace __gnu_pbds
 151
 152 #endif
 153