libstdc++
sample_ranged_hash_fn.hpp
Go to the documentation of this file.
1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2014 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 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26 
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
29 // notice appears in all copies, and that both that copyright notice
30 // and this permission notice appear in supporting documentation. None
31 // of the above authors, nor IBM Haifa Research Laboratories, make any
32 // representation about the suitability of this software for any
33 // purpose. It is provided "as is" without express or implied
34 // warranty.
35 
36 /**
37  * @file sample_ranged_hash_fn.hpp
38  * Contains a ranged hash policy.
39  */
40 
41 #ifndef PB_DS_SAMPLE_RANGED_HASH_FN_HPP
42 #define PB_DS_SAMPLE_RANGED_HASH_FN_HPP
43 
44 namespace __gnu_pbds
45 {
46  /// A sample ranged-hash functor.
48  {
49  public:
50  typedef std::size_t size_type;
51 
52  /// Default constructor.
54 
55  /// Copy constructor.
57 
58  /// Swaps content.
59  inline void
61 
62  protected:
63 
64  /// Notifies the policy object that the container's __size has
65  /// changed to size.
66  void
67  notify_resized(size_type);
68 
69  /// Transforms key_const_reference into a position within the table.
70  inline size_type
71  operator()(key_const_reference) const;
72 
73  };
74 }
75 #endif // #ifndef PB_DS_SAMPLE_RANGED_HASH_FN_HPP
void notify_resized(size_type)
Notifies the policy object that the container&#39;s __size has changed to size.
size_type operator()(key_const_reference) const
Transforms key_const_reference into a position within the table.
sample_ranged_hash_fn()
Default constructor.
void swap(sample_ranged_hash_fn &)
Swaps content.
A sample ranged-hash functor.