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std::weak_ptr::use_count

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< cpp‎ | memory‎ | weak ptr

 
 
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std::swap
 
long use_count() const;
(dal C++11)
Restituisce il numero di istanze shared_ptr che la proprietà quota di oggetto gestito, o 0 se l'oggetto gestito è già stato eliminato, cioè *this è vuoto.
Original:
Returns the number of shared_ptr instances that share ownership of the managed object, or 0 if the managed object has already been deleted, i.e. *this is empty.
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Indice

[modifica] Parametri

(Nessuno)
Original:
(none)
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[modifica] Valore di ritorno

Il numero di istanze shored_ptr condividere la proprietà dell'oggetto gestito.
Original:
The number of shored_ptr instances sharing the ownership of the managed object.
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[modifica] Eccezioni

noexcept specification:  
noexcept
  (dal C++11)

[modifica] Note

expired() può essere più veloce use_count().
Original:
expired() may be faster than use_count().
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[modifica] Esempio

[modifica] Vedi anche

Verifica se l'oggetto di riferimento è già stato cancellato
Original:
checks whether the referenced object was already deleted
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(membro pubblico funzione) [edit]