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4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
7adcbafe | 3 | // Copyright (C) 2005-2022 Free Software Foundation, Inc. |
4569a895 AT |
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 | |
748086b7 | 8 | // Foundation; either version 3, or (at your option) any later |
4569a895 AT |
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 | |
748086b7 JJ |
17 | // along with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
4569a895 AT |
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_if_fn.hpp | |
2e3f9c21 | 34 | * Contains traits for a random regression test |
4569a895 AT |
35 | * for a specific container type. |
36 | */ | |
37 | ||
38 | #ifndef PB_DS_REGRESSION_TEST_ERASE_IF_FN_HPP | |
39 | #define PB_DS_REGRESSION_TEST_ERASE_IF_FN_HPP | |
40 | ||
41 | #include <functional> | |
42 | ||
5e11f978 | 43 | namespace __gnu_pbds |
4569a895 | 44 | { |
4569a895 AT |
45 | namespace test |
46 | { | |
4569a895 AT |
47 | namespace detail |
48 | { | |
4569a895 | 49 | template<typename T> |
f92ab29f | 50 | struct regression_test_erase_if_fn |
382a1351 | 51 | : public std::unary_function<T, bool> |
4569a895 AT |
52 | { |
53 | private: | |
54 | typedef const T& const_reference; | |
55 | ||
56 | public: | |
57 | bool | |
58 | operator()(const_reference r_t) const | |
59 | { | |
60 | return (r_t.length() == 0 || | |
61 | static_cast<size_t>(*((r_t).begin())) % 2 == 1); | |
62 | } | |
63 | }; | |
64 | ||
65 | template<typename Hd, class Tl> | |
f92ab29f | 66 | struct regression_test_erase_if_fn<std::pair<Hd, Tl> > |
382a1351 | 67 | : public std::unary_function<std::pair<Hd, Tl>, bool> |
4569a895 AT |
68 | { |
69 | private: | |
70 | typedef const std::pair<Hd, Tl>& const_reference; | |
382a1351 BK |
71 | typedef regression_test_erase_if_fn<Hd> hd_erase_if_fn; |
72 | typedef regression_test_erase_if_fn<Tl> tl_erase_if_fn; | |
4569a895 AT |
73 | |
74 | public: | |
75 | bool | |
76 | operator()(const_reference r_t) const | |
77 | { | |
382a1351 | 78 | return (hd_erase_if_fn()(r_t.first) && tl_erase_if_fn()(r_t.second)); |
4569a895 AT |
79 | } |
80 | }; | |
4569a895 | 81 | } // namespace detail |
4569a895 | 82 | } // namespace test |
5e11f978 | 83 | } // namespace __gnu_pbds |
4569a895 | 84 | |
f92ab29f | 85 | #endif |