Namespace
Varianti

std::unordered_map::rehash

Da cppreference.com.

 
 
 
std::unordered_map
Membri funzioni
Original:
Member functions
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unordered_map::unordered_map
unordered_map::~unordered_map
unordered_map::operator=
unordered_map::get_allocator
Iteratori
Original:
Iterators
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unordered_map::begin
unordered_map::cbegin
unordered_map::end
unordered_map::cend
Capacità
Original:
Capacity
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unordered_map::erase
unordered_map::size
unordered_map::max_size
Modificatori
Original:
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
Original:
Lookup
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unordered_map::count
unordered_map::find
unordered_map::equal_range
Benna interfaccia
Original:
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
Politica di Hash
Original:
Hash policy
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unordered_map::load_factor
unordered_map::max_load_factor
unordered_map::rehash
unordered_map::reserve
Osservatori
Original:
Observers
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unordered_map::hash_function
unordered_map::key_eq
 
void rehash( size_type count );
(dal 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().

Indice

[modifica] Parametri

count - new number of buckets

[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Complessità

caso medio lineare nella dimensione del, quadratica caso peggiore contenitore.
Original:
average case linear in the size of the container, worst case quadratic.
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[modifica] Vedi anche

riserva spazio per almeno il numero specificato di elements.
This rigenera la tabella di hash .
Original:
reserves space for at least the specified number of elements.
This regenerates the hash table.
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(membro pubblico funzione) [edit]