libstdc++: sample_resize_policy.hpp Source File

libstdc++

sample_resize_policy.hpp
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25// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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35
36/**
37 * @file sample_resize_policy.hpp
38 * Contains a sample resize policy for hash tables.
39 */
40
41#ifndef PB_DS_SAMPLE_RESIZE_POLICY_HPP
42#define PB_DS_SAMPLE_RESIZE_POLICY_HPP
43
44namespace __gnu_pbds
45{
46 /// A sample resize policy.
47 class sample_resize_policy
48 {
49 public:
50 /// Size type.
51 typedef std::size_t size_type;
52
53 /// Default constructor.
54 sample_resize_policy();
55
56 /// Copy constructor.
57 sample_range_hashing(const sample_resize_policy& other);
58
59 /// Swaps content.
60 inline void
61 swap(sample_resize_policy& other);
62
63 protected:
64 /// Notifies a search started.
65 inline void
66 notify_insert_search_start();
67
68 /// Notifies a search encountered a collision.
69 inline void
70 notify_insert_search_collision();
71
72 /// Notifies a search ended.
73 inline void
74 notify_insert_search_end();
75
76 /// Notifies a search started.
77 inline void
78 notify_find_search_start();
79
80 /// Notifies a search encountered a collision.
81 inline void
82 notify_find_search_collision();
83
84 /// Notifies a search ended.
85 inline void
86 notify_find_search_end();
87
88 /// Notifies a search started.
89 inline void
90 notify_erase_search_start();
91
92 /// Notifies a search encountered a collision.
93 inline void
94 notify_erase_search_collision();
95
96 /// Notifies a search ended.
97 inline void
98 notify_erase_search_end();
99
100 /// Notifies an element was inserted.
101 inline void
102 notify_inserted(size_type num_e);
103
104 /// Notifies an element was erased.
105 inline void
106 notify_erased(size_type num_e);
107
108 /// Notifies the table was cleared.
109 void
110 notify_cleared();
111
112 /// Notifies the table was resized to new_size.
113 void
114 notify_resized(size_type new_size);
115
116 /// Queries whether a resize is needed.
117 inline bool
118 is_resize_needed() const;
119
120 /// Queries what the new size should be.
121 size_type
122 get_new_size(size_type size, size_type num_used_e) const;
123 };
124}
125#endif
__gnu_pbds
GNU extensions for policy-based data structures for public use.
Definition assoc_container.hpp:52
__gnu_pbds::sample_resize_policy::notify_find_search_start
void notify_find_search_start()
Notifies a search started.
__gnu_pbds::sample_resize_policy::notify_cleared
void notify_cleared()
Notifies the table was cleared.
__gnu_pbds::sample_resize_policy::notify_resized
void notify_resized(size_type new_size)
Notifies the table was resized to new_size.
__gnu_pbds::sample_resize_policy::get_new_size
size_type get_new_size(size_type size, size_type num_used_e) const
Queries what the new size should be.
__gnu_pbds::sample_resize_policy::notify_insert_search_end
void notify_insert_search_end()
Notifies a search ended.
__gnu_pbds::sample_resize_policy::notify_erase_search_end
void notify_erase_search_end()
Notifies a search ended.
__gnu_pbds::sample_resize_policy::sample_resize_policy
sample_resize_policy()
Default constructor.
__gnu_pbds::sample_resize_policy::notify_erase_search_collision
void notify_erase_search_collision()
Notifies a search encountered a collision.
__gnu_pbds::sample_resize_policy::is_resize_needed
bool is_resize_needed() const
Queries whether a resize is needed.
__gnu_pbds::sample_resize_policy::notify_find_search_collision
void notify_find_search_collision()
Notifies a search encountered a collision.
__gnu_pbds::sample_resize_policy::notify_erase_search_start
void notify_erase_search_start()
Notifies a search started.
__gnu_pbds::sample_resize_policy::sample_range_hashing
sample_range_hashing(const sample_resize_policy &other)
Copy constructor.
__gnu_pbds::sample_resize_policy::notify_find_search_end
void notify_find_search_end()
Notifies a search ended.
__gnu_pbds::sample_resize_policy::notify_erased
void notify_erased(size_type num_e)
Notifies an element was erased.
__gnu_pbds::sample_resize_policy::notify_insert_search_collision
void notify_insert_search_collision()
Notifies a search encountered a collision.
__gnu_pbds::sample_resize_policy::notify_inserted
void notify_inserted(size_type num_e)
Notifies an element was inserted.
__gnu_pbds::sample_resize_policy::swap
void swap(sample_resize_policy &other)
Swaps content.
__gnu_pbds::sample_resize_policy::notify_insert_search_start
void notify_insert_search_start()
Notifies a search started.
__gnu_pbds::sample_resize_policy::size_type
std::size_t size_type
Size type.
Definition sample_resize_policy.hpp:51