1// -*- C++ -*-
2
3// Copyright (C) 2005, 2006, 2009 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
45namespace __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
167