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std::weak_ptr::operator=

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< cpp‎ | memory‎ | weak ptr

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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
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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)
uses_allocator(C++11)
scoped_allocator_adaptor(C++11)
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
raw_storage_iterator
get_temporary_buffer
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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)
pointer_safety(C++11)
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Varie
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Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
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C Library
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C Library
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std::weak_ptr
Membri funzioni
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Member functions
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weak_ptr::weak_ptr
weak_ptr::~weak_ptr
weak_ptr::operator=
Modificatori
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Modifiers
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weak_ptr::reset
weak_ptr::swap
Osservatori
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Observers
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weak_ptr::use_count
weak_ptr::expired
weak_ptr::lock
weak_ptr::owner_before
Non membri funzioni
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Non-member functions
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std::swap
 
weak_ptr& operator=( const weak_ptr& r );
 (1) (dal C++11)
template< class Y >
weak_ptr& operator=( const weak_ptr<Y>& r );
 (2) (dal C++11)
template< class Y >
weak_ptr& operator=( const shared_ptr<Y>& r );
 (3) (dal C++11)
Sostituisce l'oggetto gestito con quello gestito da r. L'oggetto è in comune con r. Se r gestisce nessun oggetto, *this gestisce nessun oggetto troppo. Equivalente a weak_ptr<T>(r).swap(*this).
Original:
Replaces the managed object with the one managed by r. The object is shared with r. If r manages no object, *this manages no object too. Equivalent to weak_ptr<T>(r).swap(*this).
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Indice

[modifica] Parametri

r -
puntatore intelligente per condividere un oggetto con
Original:
smart pointer to share an object with
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[modifica] Valore di ritorno

*this

[modifica] Eccezioni

noexcept specification:  
noexcept
  (dal C++11)

[modifica] Note

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