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1 | // -*- C++ -*- | |
2 | ||
3 | // Copyright (C) 2005-2020 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 erase_test.hpp | |
34 | * Contains a generic erase test. | |
35 | */ | |
36 | ||
37 | #ifndef PB_DS_ERASE_TEST_HPP | |
38 | #define PB_DS_ERASE_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/assoc/string_form.hpp> | |
45 | ||
46 | namespace __gnu_pbds | |
47 | { | |
48 | namespace test | |
49 | { | |
50 | template<typename It> | |
51 | class erase_test | |
52 | { | |
53 | public: | |
54 | erase_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 | erase_test(const erase_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 | erase_test<It>:: | |
75 | operator()(Cntnr) | |
76 | { | |
77 | typedef string_form<Cntnr> sform_type; | |
78 | typedef xml_result_set_performance_formatter formatter_type; | |
79 | formatter_type res_set_fmt(sform_type::name(), sform_type::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 | ||
85 | It ins_it_b = m_ins_b; | |
86 | It ins_it_e = m_ins_b; | |
87 | std::advance(ins_it_e, ins_size); | |
88 | ||
89 | typedef __gnu_test::tracker_allocator_counter counter_type; | |
90 | __gnu_test::tracker_allocator<char> alloc; | |
91 | const size_t init_mem = counter_type::get_allocation_count() | |
92 | - counter_type::get_deallocation_count(); | |
93 | Cntnr cntnr(ins_it_b, ins_it_e); | |
94 | ||
95 | while (cntnr.size() > 1) | |
96 | cntnr.erase(*cntnr.begin()); | |
97 | ||
98 | const size_t final_mem = counter_type::get_allocation_count() | |
99 | - counter_type::get_deallocation_count(); | |
100 | assert(final_mem > init_mem); | |
101 | const size_t delta_mem = final_mem - init_mem; | |
102 | res_set_fmt.add_res(ins_size, static_cast<double>(delta_mem)); | |
103 | } | |
104 | } | |
105 | } // namespace test | |
106 | } // namespace __gnu_pbds | |
107 | ||
108 | #endif | |
109 |