1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2013 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 pop_test.hpp
34  * Contains a generic pop test.
35  */
36 
37 #ifndef PB_DS_POP_TEST_HPP
38 #define PB_DS_POP_TEST_HPP
39 
40 #include <iterator>
41 #include <testsuite_allocator.h>
42 #include <ext/pb_ds/detail/type_utils.hpp>
43 #include <performance/io/xml_formatter.hpp>
44 #include <common_type/priority_queue/string_form.hpp>
45 
46 namespace __gnu_pbds
47 {
48   namespace test
49   {
50     template<typename It>
51     class pop_test
52     {
53     public:
pop_test(It ins_b,size_t ins_vn,size_t ins_vs,size_t ins_vm)54       pop_test(It ins_b, size_t ins_vn, size_t ins_vs, size_t ins_vm)
55       : m_ins_b(ins_b), m_ins_vn(ins_vn), m_ins_vs(ins_vs), m_ins_vm(ins_vm)
56       { }
57 
58       template<typename Cntnr>
59       void
60       operator()(Cntnr);
61 
62     private:
63       pop_test(const pop_test&);
64 
65       const It m_ins_b;
66       const size_t m_ins_vn;
67       const size_t m_ins_vs;
68       const size_t m_ins_vm;
69     };
70 
71     template<typename It>
72     template<typename Cntnr>
73     void
74     pop_test<It>::
operator ()(Cntnr)75     operator()(Cntnr)
76     {
77       typedef xml_result_set_performance_formatter formatter_type;
78      formatter_type res_set_fmt(string_form<Cntnr>::name(),
79 				string_form<Cntnr>::desc());
80 
81       for (size_t i = 0; m_ins_vn + i * m_ins_vs < m_ins_vm; ++i)
82 	{
83 	  const size_t ins_size = m_ins_vn + i * m_ins_vs;
84 	  It ins_it_b = m_ins_b;
85 	  It ins_it_e = m_ins_b;
86 	  std::advance(ins_it_e, ins_size);
87 
88 	  typedef __gnu_test::tracker_allocator_counter counter_type;
89 	  __gnu_test::tracker_allocator<char> alloc;
90 
91 	  const size_t init_mem = counter_type::get_allocation_count()
92 	                          - counter_type::get_deallocation_count();
93 	  Cntnr cntnr;
94 	  for (It ins_it =    ins_it_b; ins_it != ins_it_e; ++ins_it)
95             cntnr.push(ins_it->first);
96 
97 	  while (cntnr.size() > 1)
98             cntnr.pop();
99 
100 	  const size_t final_mem = counter_type::get_allocation_count()
101 	                           - counter_type::get_deallocation_count();
102 	  assert(final_mem > init_mem);
103 	  const size_t delta_mem = final_mem - init_mem;
104 	  res_set_fmt.add_res(ins_size, static_cast<double>(delta_mem));
105 	}
106     }
107   } // namespace test
108 } // namespace __gnu_pbds
109 
110 #endif
111 
112