Varianti

    std::weak_ptr::use_count

    Da cppreference.com.

    Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.

    La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui.

    Click here for the English version of this page

    <metanoindex/>

     
    C++
     
    Utilità libreria
    Tipo di supporto (basic types, RTTI, type traits)
    Gestione della memoria dinamica
    La gestione degli errori
    Programma di utilità
    Funzioni variadic
    Data e ora
    Funzione oggetti
    initializer_list(C++11)
    bitset
    hash(C++11)
    Gli operatori relazionali
    Original:
    Relational operators
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    rel_ops::operator!=
    rel_ops::operator>
    rel_ops::operator<=
    rel_ops::operator>=
    Coppie e tuple
    Original:
    Pairs and tuples
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    pair
    tuple(C++11)
    piecewise_construct_t(C++11)
    piecewise_construct(C++11)
    Swap, in avanti e spostare
    Original:
    Swap, forward and move
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    swap
    forward(C++11)
    move(C++11)
    move_if_noexcept(C++11)
    declval(C++11)
     
    Gestione della memoria dinamica
    Basso livello di gestione della memoria
    Allocatori
    Original:
    Allocators
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    allocator
    allocator_traits(C++11)
    allocator_arg_t(C++11)
    allocator_arg(C++11)
    uses_allocator(C++11)
    scoped_allocator_adaptor(C++11)
    Non inizializzata stoccaggio
    Original:
    Uninitialized storage
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    uninitialized_copy
    uninitialized_copy_n(C++11)
    uninitialized_fill
    uninitialized_fill_n
    raw_storage_iterator
    get_temporary_buffer
    return_temporary_buffer
    Puntatori intelligenti
    Original:
    Smart pointers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    unique_ptr(C++11)
    shared_ptr(C++11)
    weak_ptr(C++11)
    auto_ptr(deprecato)
    owner_less(C++11)
    enable_shared_from_this(C++11)
    bad_weak_ptr(C++11)
    default_delete(C++11)
    Garbage collection supporto
    Original:
    Garbage collection support
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    declare_reachable(C++11)
    undeclare_reachable(C++11)
    declare_no_pointers(C++11)
    undeclare_no_pointers(C++11)
    pointer_safety(C++11)
    get_pointer_safety(C++11)
    Varie
    Original:
    Miscellaneous
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    pointer_traits(C++11)
    addressof(C++11)
    align(C++11)
    C Library
    Original:
    C Library
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
     
    std::weak_ptr
    Membri funzioni
    Original:
    Member functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    weak_ptr::weak_ptr
    weak_ptr::~weak_ptr
    weak_ptr::operator=
    Modificatori
    Original:
    Modifiers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    weak_ptr::reset
    weak_ptr::swap
    Osservatori
    Original:
    Observers
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    weak_ptr::use_count
    weak_ptr::expired
    weak_ptr::lock
    weak_ptr::owner_before
    Non membri funzioni
    Original:
    Non-member functions
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    std::swap
     
    <tbody> </tbody>
    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.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Parametri

    (Nessuno)
    Original:
    (none)
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    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.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Eccezioni