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