libstdc++
sample_range_hashing.hpp
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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
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11 // This library is distributed in the hope that it will be useful, but
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16 // Under Section 7 of GPL version 3, you are granted additional
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18 // 3.1, as published by the Free Software Foundation.
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25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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35 
36 /**
37  * @file sample_range_hashing.hpp
38  * Contains a range hashing policy.
39  */
40 
41 #ifndef PB_DS_SAMPLE_RANGE_HASHING_HPP
42 #define PB_DS_SAMPLE_RANGE_HASHING_HPP
43 
44 namespace __gnu_pbds
45 {
46  /// A sample range-hashing functor.
48  {
49  public:
50  /// Size type.
51  typedef std::size_t size_type;
52 
53  /// Default constructor.
55 
56  /// Copy constructor.
58 
59  /// Swaps content.
60  inline void
61  swap(sample_range_hashing& other);
62 
63  protected:
64  /// Notifies the policy object that the container's size has
65  /// changed to argument's size.
66  void
67  notify_resized(size_type);
68 
69  /// Transforms the __hash value hash into a ranged-hash value.
70  inline size_type
71  operator()(size_type ) const;
72  };
73 }
74 #endif // #ifndef PB_DS_SAMPLE_RANGE_HASHING_HPP
A sample range-hashing functor.
void notify_resized(size_type)
Notifies the policy object that the container's size has changed to argument's size.
GNU extensions for policy-based data structures for public use.
size_type operator()(size_type) const
Transforms the __hash value hash into a ranged-hash value.
sample_range_hashing()
Default constructor.
void swap(sample_range_hashing &other)
Swaps content.