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 subscript_find_test.hpp
34 * Contains a generic subscript_find_test test.
35 */
36
37#ifndef PB_DS_SUBSCRIPT_TEST_HPP
38#define PB_DS_SUBSCRIPT_TEST_HPP
39
40#include <performance/time/timing_test_base.hpp>
41#include <common_type/assoc/string_form.hpp>
42#include <iterator>
43
44namespace __gnu_pbds
45{
46  namespace test
47  {
48    namespace detail
49    {
50      template<typename It, class Cntnr>
51      class subscript_find_functor
52      {
53      public:
54        subscript_find_functor(Cntnr& container,  It fnd_it_b,  It fnd_it_e)
55	: m_r_container(container), m_fnd_it_b(fnd_it_b), m_fnd_it_e(fnd_it_e)
56	{ }
57
58	void
59        operator()(std::size_t resolution)
60	{
61	  for (std::size_t i = 0; i < resolution; ++i)
62	    {
63	      It fnd_it = m_fnd_it_b;
64	      while (fnd_it != m_fnd_it_e)
65                ++m_r_container[(fnd_it++)->first];
66	      ++fnd_it;
67	    }
68	}
69
70      private:
71	Cntnr& m_r_container;
72	const It m_fnd_it_b;
73	const It m_fnd_it_e;
74      };
75
76    } // namespace detail
77
78    template<typename It>
79    class subscript_find_test : private __gnu_pbds::test::detail::timing_test_base
80    {
81    public:
82      subscript_find_test(It ins_b, It b, size_t ins_vn, size_t ins_vs,
83			  size_t ins_vm, size_t vn, size_t vs, size_t vm)
84      : m_ins_b(ins_b), m_fnd_b(b), m_ins_vn(ins_vn), m_ins_vs(ins_vs),
85	m_ins_vm(ins_vm), m_fnd_vn(vn), m_fnd_vs(vs), m_fnd_vm(vm)
86      { }
87
88      template<typename Cntnr>
89      void
90      operator()(Cntnr);
91
92    private:
93      subscript_find_test(const subscript_find_test&);
94
95    private:
96      const It m_ins_b;
97      const It m_fnd_b;
98      const size_t m_ins_vn;
99      const size_t m_ins_vs;
100      const size_t m_ins_vm;
101      const size_t m_fnd_vn;
102      const size_t m_fnd_vs;
103      const size_t m_fnd_vm;
104    };
105
106   template<typename It>
107   template<typename Cntnr>
108    void
109    subscript_find_test<It>::
110    operator()(Cntnr)
111    {
112      typedef xml_result_set_performance_formatter formatter_type;
113      formatter_type res_set_fmt(string_form<Cntnr>::name(),
114				 string_form<Cntnr>::desc());
115
116      for (size_t i = 0; m_ins_vn + i*  m_ins_vs < m_ins_vm; ++i)
117	{
118	  const size_t v = m_ins_vn + i*  m_ins_vs;
119	  const size_t fnd_size = m_fnd_vn + i*  m_fnd_vs;
120
121	  It ins_it_b = m_ins_b;
122	  It ins_it_e = m_ins_b;
123	  std::advance(ins_it_e, v);
124
125	  Cntnr test_container(ins_it_b, ins_it_e);
126
127	  It fnd_it_b = m_fnd_b;
128	  It fnd_it_e = m_fnd_b;
129	  std::advance(fnd_it_e, fnd_size);
130
131	  __gnu_pbds::test::detail::subscript_find_functor<It, Cntnr>
132            fn(test_container, fnd_it_b, fnd_it_e);
133
134	  const double res =
135            __gnu_pbds::test::detail::timing_test_base::operator()(fn);
136
137	  res_set_fmt.add_res(v, res / fnd_size);
138	}
139    }
140  } // namespace test
141} // namespace __gnu_pbds
142
143#endif
144
145