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std::unordered_map::rehash

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std::unordered_map
Member-Funktionen
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Member functions
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unordered_map::unordered_map
unordered_map::~unordered_map
unordered_map::operator=
unordered_map::get_allocator
Iteratoren
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Iterators
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unordered_map::begin
unordered_map::cbegin
unordered_map::end
unordered_map::cend
Kapazität
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Capacity
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unordered_map::erase
unordered_map::size
unordered_map::max_size
Modifiers
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Modifiers
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unordered_map::clear
unordered_map::insert
unordered_map::emplace
unordered_map::emplace_hint
unordered_map::erase
unordered_map::swap
Lookup
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Lookup
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unordered_map::count
unordered_map::find
unordered_map::equal_range
Eimer Schnittstelle
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Bucket interface
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unordered_map::begin2
unordered_map::end2
unordered_map::bucket_count
unordered_map::max_bucket_count
unordered_map::bucket_size
unordered_map::bucket
Hash Politik
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Hash policy
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unordered_map::load_factor
unordered_map::max_load_factor
unordered_map::rehash
unordered_map::reserve
Beobachter
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Observers
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unordered_map::hash_function
unordered_map::key_eq
 
void rehash( size_type count );
(seit C++11)

Sets the number of buckets to count and rehashes the container, i.e. puts the elements into appropriate buckets considering that total number of buckets has changed. If the new number of buckets makes load factor more than maximum load factor (count < size() / max_load_factor()), then the new number of buckets is at least size() / max_load_factor().

Inhaltsverzeichnis

[Bearbeiten] Parameter

count - new number of buckets

[Bearbeiten] Rückgabewert

(None)
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(none)
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[Bearbeiten] Komplexität

durchschnittlichen Fall linear in der Größe des Behälters, schlimmsten Fall quadratische .
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average case linear in the size of the container, worst case quadratic.
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[Bearbeiten] Siehe auch

reserviert Platz für mindestens die angegebene Anzahl von elements.
This regeneriert die Hash-Tabelle .
Original:
reserves space for at least the specified number of elements.
This regenerates the hash table.
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(öffentliche Elementfunktion) [edit]