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std::undeclare_reachable

Da cppreference.com.
< cpp‎ | memory

 
 
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
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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
return_temporary_buffer
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)
get_pointer_safety(C++11)
Varie
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Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C Library
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C Library
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Defined in header <memory>
template< class T >
T* undeclare_reachable( T* p )
(dal C++11)
Rimuove lo stato raggiungibile dell'oggetto, cui fa riferimento il puntatore p, se è stato precedentemente impostato da std::declare_reachable. Se l'oggetto è stato dichiarato raggiungibili più volte, il numero uguale di chiamate undeclare_reachable sarebbe necessaria per rimuovere questo stato. Una volta che l'oggetto non viene dichiarata raggiungibile e non ha puntatori riferimento a esso, può essere recuperato dal garbage collector o segnalati come una perdita da un rilevatore di perdite.
Original:
Removes the reachable status of the object, referenced by the pointer p, if it was previously set by std::declare_reachable. If the object was declared reachable multiple times, equal number of calls to undeclare_reachable would be needed to remove this status. Once the object is not declared reachable and has no pointers referencing it, it may be reclaimed by garbage collector or reported as a leak by a leak detector.
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Indice

[modifica] Parametri

p -
un puntatore a un oggetto precedentemente dichiarato raggiungibile e non distrutto da allora
Original:
a pointer to an object previously declared reachable and not destructed since then
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[modifica] Valore di ritorno

Una copia in sicurezza di derivazione di p.
Original:
A safely-derived copy of p.
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[modifica] Eccezioni

Nessuno
Original:
None
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[modifica] Esempio

[modifica] Vedi anche

dichiara che un oggetto non può essere riciclato
Original:
declares that an object can not be recycled
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(funzione) [edit]