std::shared_ptr::reset

 

C++

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Espressioni regolari(C++11)

Operazioni atomicche(C++11)

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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.
malloc calloc	realloc free

 

std::shared_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.

shared_ptr::shared_ptr

shared_ptr::~shared_ptr

shared_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.

shared_ptr::reset

shared_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.

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 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

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 atomic_load_explicit atomic_store atomic_store_explicit atomic_exchange atomic_exchange_explicit atomic_compare_exchange_weak atomic_compare_exchange_strong atomic_compare_exchange_weak_explicit atomic_compare_exchange_strong_explicit

std::hash

 

void reset();	(1)	(dal C++11)
template<class Y > void reset( Y* ptr );	(2)	(dal C++11)
template<class Y, class Deleter > void reset( Y* ptr, Deleter d );	(3)	(dal C++11)
template<class Y, class Deleter, class Alloc > void reset( Y* ptr, Deleter d, Alloc alloc );	(4)	(dal C++11)

Sostituisce l'oggetto gestito con un oggetto puntato da ptr. Opzionale deleter d possono essere forniti, che viene poi usato per distruggere il nuovo oggetto quando nessun oggetto shared_ptr lo possiede. Per impostazione predefinita, l'espressione è usata come delete deleter. delete espressione corretta corrispondente al tipo fornito è sempre selezionata, questo è il motivo per cui è implementata la funzione come template usando un parametro separato Y.

Original:

Replaces the managed object with an object pointed to by ptr. Optional deleter d can be supplied, which is later used to destroy the new object when no shared_ptr objects own it. By default, delete expression is used as deleter. Proper delete expression corresponding to the supplied type is always selected, this is the reason why the function is implemented as template using a separate parameter Y.

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Se *this già possiede un oggetto ed è l'ultimo shared_ptr possederlo, l'oggetto viene distrutto attraverso la proprietà deleter.

Original:

If *this already owns an object and it is the last shared_ptr owning it, the object is destroyed through the owned deleter.

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Se l'oggetto puntato da ptr è già di proprietà, i risultati della funzione in un comportamento indefinito.

Original:

If the object pointed to by ptr is already owned, the function results in undefined behavior.

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1)

Rilascia la proprietà dell'oggetto gestito, se presente. Dopo la chiamata, *this gestisce nessun oggetto.

Original:

Releases the ownership of the managed object, if any. After the call, *this manages no object.

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2-4)

Sostituisce l'oggetto gestito con un oggetto puntato da ptr. Y deve essere di tipo completo e convertibile in modo implicito T. Inoltre:

Original:

Replaces the managed object with an object pointed to by ptr. Y must be a complete type and implicitly convertible to T. Additionally:

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2)

Utilizza l'espressione di eliminazione come il deleter. Un'espressione di cancellazione valida deve essere disponibile, delete ptr cioè devono essere ben formati, hanno un comportamento ben definito e non generare alcuna eccezione. Chiama efficacemente shared_ptr<T>(ptr).swap(*this);.

Original:

Uses the delete expression as the deleter. A valid delete expression must be available, i.e. delete ptr must be well formed, have well-defined behavior and not throw any exceptions. Effectively calls shared_ptr<T>(ptr).swap(*this);.

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3)

Utilizza la d specificato deleter come deleter. Deleter deve essere richiamabile per il tipo di T, cioè d(ptr) devono essere ben formati, hanno un comportamento ben definito e non generare alcuna eccezione. DeleterCopyConstructible deve essere. Chiama efficacemente shared_ptr<T>(ptr, d).swap(*this);.

Original:

Uses the specified deleter d as the deleter. Deleter must be callable for the type T, i.e. d(ptr) must be well formed, have well-defined behavior and not throw any exceptions. Deleter must be CopyConstructible. Effectively calls shared_ptr<T>(ptr, d).swap(*this);.

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4)

Stessa (3), ma utilizza inoltre una copia di alloc per l'assegnazione dei dati per uso interno. Alloc deve essere un Allocator. Il costruttore di copia e distruttore non devono generare eccezioni. Chiama efficacemente shared_ptr<T>(ptr, d, alloc).swap(*this);.

Original:

Same as (3), but additionally uses a copy of alloc for allocation of data for internal use. Alloc must be a Allocator. The copy constructor and destructor must not throw exceptions. Effectively calls shared_ptr<T>(ptr, d, alloc).swap(*this);.

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Parametri

ptr	-	puntatore ad un oggetto di acquisire la proprietà di Original: pointer to an object to acquire ownership of The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
d	-	deleter per memorizzare per l'eliminazione dell'oggetto Original: deleter to store for deletion of the object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
alloc	-	allocatore da utilizzare per l'assegnazione interna Original: allocator to use for internal allocations 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

(Nessuno)

Original:

(none)

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Eccezioni

1)

noexcept specification:  

noexcept

  (dal C++11)

2-4)

Come specificato dal costruttore in questione .

Original:

As specified by the relevant constructor .

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Vedi anche

(costruttore)	constructs new shared_ptr (metodo pubblico)