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std::shared_ptr::operator=

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< cpp‎ | memory‎ | shared ptr

 
 
Utilità libreria
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Gestione della memoria dinamica
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Programma di utilità
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Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
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Swap, forward and move
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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
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Allocators
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allocator
allocator_traits(C++11)
allocator_arg_t(C++11)
allocator_arg(C++11)
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Non inizializzata stoccaggio
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Uninitialized storage
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uninitialized_copy
uninitialized_copy_n(C++11)
uninitialized_fill
uninitialized_fill_n
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Puntatori intelligenti
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Smart pointers
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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
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Garbage collection support
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declare_reachable(C++11)
undeclare_reachable(C++11)
declare_no_pointers(C++11)
undeclare_no_pointers(C++11)
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Varie
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Miscellaneous
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addressof(C++11)
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C Library
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C Library
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std::shared_ptr
Membri funzioni
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Member functions
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shared_ptr::shared_ptr
shared_ptr::~shared_ptr
shared_ptr::operator=
Modificatori
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Modifiers
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shared_ptr::reset
shared_ptr::swap
Osservatori
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Observers
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shared_ptr::get
shared_ptr::operator*
shared_ptr::operator->
shared_ptr::use_count
shared_ptr::unique
shared_ptr::operator bool
shared_ptr::owner_before
Non membri funzioni
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Non-member functions
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std::swap
make_shared
allocate_shared
static_pointer_cast
dynamic_pointer_cast
const_pointer_cast
get_deleter
operator==
operator|=
operator<
operator<=
operator>
operator>=
operator<<
atomic_is_lock_free
atomic_load
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atomic_compare_exchange_strong_explicit
std::hash
 
shared_ptr& operator=( const shared_ptr& r );
(1)
template< class Y >
shared_ptr& operator=( const shared_ptr<Y>& r );
(1)
shared_ptr& operator=( shared_ptr&& r );
(2)
template< class Y >
shared_ptr& operator=( shared_ptr<Y>&& r );
(2)
template< class Y >
shared_ptr& operator=( std::auto_ptr<Y>&& r );
(3)
template< class Y, class Deleter >
shared_ptr& operator=( std::unique_ptr<Y,Deleter>&& r );
(4)
Sostituisce l'oggetto gestito con quello gestito da r.
Original:
Replaces the managed object with the one managed by r.
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1)
Azioni proprietà dell'oggetto gestito da r. Se r gestisce nessun oggetto, *this gestisce nessun oggetto troppo. Il sovraccarico basato su modelli non prende parte alla risoluzione di sovraccarico se Y* non è convertibile in modo implicito T*. Equivalente a shared_ptr<T> p(r).swap(*this).
Original:
Shares ownership of the object managed by r. If r manages no object, *this manages no object too. The templated overload doesn't participate in the overload resolution if Y* is not implicitly convertible to T*. Equivalent to shared_ptr<T> p(r).swap(*this).
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2)
Move-assegna un shared_ptr da r. Dopo l'assegnazione, *this contiene una copia del precedente stato di r, r è vuoto. Il sovraccarico basato su modelli non prende parte alla risoluzione di sovraccarico se Y* non è convertibile in modo implicito T*. Equivalente a shared_ptr<T> p(std::move(r)).swap(*this).
Original:
Move-assigns a shared_ptr from r. After the assignment, *this contains a copy of the previous state of r, r is empty. The templated overload doesn't participate in the overload resolution if Y* is not implicitly convertible to T*. Equivalent to shared_ptr<T> p(std::move(r)).swap(*this).
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3) 4)
Trasferisce la proprietà dell'oggetto gestito da r a *this. Il deleter associata r viene memorizzato per l'eliminazione futuro l'oggetto gestito. r gestisce nessun oggetto dopo la chiamata. Equivalente a shared_ptr<T> p(std::move(r)).swap(*this).
Original:
Transfers the ownership of the object managed by r to *this. The deleter associated to r is stored for future deletion of the managed object. r manages no object after the call. Equivalent to shared_ptr<T> p(std::move(r)).swap(*this).
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Indice

[modifica] Parametri

r -
un altro puntatore intelligente per condividere la proprietà o acquisire la proprietà di
Original:
another smart pointer to share the ownership to or acquire the ownership from
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[modifica] Valore di ritorno

*this

[modifica] Note

L'implementazione può soddisfare le esigenze senza creare un oggetto temporaneo shared_ptr.
Original:
The implementation may meet the requirements without creating a temporary shared_ptr object.
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[modifica] Eccezioni

1-2)
noexcept specification:  
noexcept
  (dal C++11)
3)
(Nessuno)
Original:
(none)
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4-5)
noexcept specification:  
noexcept
  (dal C++11)

[modifica] Esempio

[modifica] Vedi anche

sostituisce l'oggetto gestito
Original:
replaces the managed object
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(membro pubblico funzione) [edit]