sample_range_hashing.hpp
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// -*- C++ -*-
// Copyright (C) 2005-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
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// of the GNU General Public License as published by the Free Software
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// version.
// This library is distributed in the hope that it will be useful, but
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// Under Section 7 of GPL version 3, you are granted additional
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// 3.1, as published by the Free Software Foundation.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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/**
* @file sample_range_hashing.hpp
* Contains a range hashing policy.
*/
#ifndef PB_DS_SAMPLE_RANGE_HASHING_HPP
#define PB_DS_SAMPLE_RANGE_HASHING_HPP
namespace __gnu_pbds
{
/// A sample range-hashing functor.
class sample_range_hashing
{
public:
/// Size type.
typedef std::size_t size_type;
/// Default constructor.
sample_range_hashing();
/// Copy constructor.
sample_range_hashing(const sample_range_hashing& other);
/// Swaps content.
inline void
swap(sample_range_hashing& other);
protected:
/// Notifies the policy object that the container's size has
/// changed to argument's size.
void
notify_resized(size_type);
/// Transforms the __hash value hash into a ranged-hash value.
inline size_type
operator()(size_type ) const;
};
}
#endif // #ifndef PB_DS_SAMPLE_RANGE_HASHING_HPP
__gnu_pbds
GNU extensions for policy-based data structures for public use.
Definition: assoc_container.hpp:52
__gnu_pbds::sample_range_hashing
A sample range-hashing functor.
Definition: sample_range_hashing.hpp:48
__gnu_pbds::sample_range_hashing::notify_resized
void notify_resized(size_type)
Notifies the policy object that the container's size has changed to argument's size.
__gnu_pbds::sample_range_hashing::sample_range_hashing
sample_range_hashing(const sample_range_hashing &other)
Copy constructor.
__gnu_pbds::sample_range_hashing::swap
void swap(sample_range_hashing &other)
Swaps content.
__gnu_pbds::sample_range_hashing::sample_range_hashing
sample_range_hashing()
Default constructor.
__gnu_pbds::sample_range_hashing::operator()
size_type operator()(size_type) const
Transforms the __hash value hash into a ranged-hash value.
__gnu_pbds::sample_range_hashing::size_type
std::size_t size_type
Size type.
Definition: sample_range_hashing.hpp:51