Namensräume
Varianten
Aktionen

std::shared_ptr

Aus cppreference.com

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
Utilities-Bibliothek
 
Dynamische Speicherverwaltung
Low-Level-Speicherverwaltung
Zuweiser
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)
Initialisierter Speicher
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
Intelligente Zeiger
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(veraltet)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
Garbage Collection Unterstützung
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)
Verschiedenes
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-Bibliothek
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::shared_ptr
Member-Funktionen
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=
Modifiers
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
Beobachter
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-Member-Funktionen
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
std::hash
 
Defined in header <memory>
template< class T > class shared_ptr;
 (seit C++11)
std::shared_ptr ist ein intelligenter Zeiger, der gemeinsamen Trägerschaft eines Objekts über einen Zeiger behält. Mehrere shared_ptr Objekte besitzen darf das gleiche Objekt, das Objekt zerstört wird, wenn der letzte verbleibende shared_ptr auf sie zeigen zerstört oder zurückzusetzen. Das Objekt zerstört wird mit delete-expression oder eine benutzerdefinierte deleter, die shared_ptr während der Bauphase geliefert wird .
Original:
std::shared_ptr is a smart pointer that retains shared ownership of an object through a pointer. Several shared_ptr objects may own the same object; the object is destroyed when the last remaining shared_ptr pointing to it is destroyed or reset. The object is destroyed using delete-expression or a custom deleter that is supplied to shared_ptr during construction.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
A shared_ptr kann auch besitzen keine Objekte, in diesem Fall wird er als leer .
Original:
A shared_ptr may also own no objects, in which case it is called empty.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
shared_ptr erfüllt die Anforderungen der CopyConstructible und CopyAssignable .
Original:
shared_ptr meets the requirements of CopyConstructible and CopyAssignable.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Inhaltsverzeichnis

[Bearbeiten] Mitglied Typen

Mitglied Typ
Original:
Member type
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 Definition
element_type T

[Bearbeiten] Member-Funktionen

 constructs new shared_ptr
(öffentliche Elementfunktion) [edit]
zerstört sich die Besitz-Objekt, wenn nicht mehr shared_ptrs verlinken
Original:
destructs the owned object if no more shared_ptrs link to it
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]
ordnet die shared_ptr
Original:
assigns the shared_ptr
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]
Modifiers
Original:
Modifiers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ersetzt das verwaltete Objekt
Original:
replaces 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.

(öffentliche Elementfunktion) [edit]
Swaps die verwalteten Objekte
Original:
swaps the managed objects
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]
Beobachter
Original:
Observers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
liefert einen Zeiger auf das verwaltete Objekt
Original:
returns a pointer to 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.

(öffentliche Elementfunktion) [edit]
dereferences Zeiger auf das verwaltete Objekt
Original:
dereferences pointer to 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.

(öffentliche Elementfunktion) [edit]
gibt die Anzahl der Objekte shared_ptr auf dieselbe verwalteten Objekts
Original:
returns the number of shared_ptr objects referring to the same managed object
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]
prüft, ob das verwaltete Objekt ist nur durch die aktuelle shared_ptr Instanz verwaltet
Original:
checks whether the managed object is managed only by the current shared_ptr instance
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]
prüft, ob verwalteten Objekt verknüpft ist
Original:
checks if there is associated managed object
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]
bietet Inhaber-basierte Bestellsystem der geteilten Zeiger
Original:
provides owner-based ordering of shared pointers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(öffentliche Elementfunktion) [edit]

[Bearbeiten] Non-Member-Funktionen
schafft eine gemeinsame Zeiger, der ein neues Objekt verwaltet
Original:
creates a shared pointer that manages a new object
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
schafft eine gemeinsame Zeiger, der ein neues Objekt zugewiesen werden, indem eine Allocator verwaltet
Original:
creates a shared pointer that manages a new object allocated using an allocator
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
static_cast gilt, dynamic_cast oder const_cast dem Typ des verwalteten Objekts
Original:
applies static_cast, dynamic_cast or const_cast to the type 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.

(Funktions-Template) [edit]
gibt die deleter des angegebenen Typs, wenn Besitz
Original:
returns the deleter of specified type, if owned
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
vergleicht mit einem anderen oder mit shared_ptr nullptr
Original:
compares with another shared_ptr or with nullptr
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
gibt den Wert des verwalteten Zeiger auf einen Ausgabestrom
Original:
outputs the value of the managed pointer to an output stream
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
(C++11)
spezialisiert die std::swap Algorithmus
Original:
specializes the std::swap algorithm
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]
spezialisiert atomare Operationen
Original:
specializes atomic operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(Funktions-Template) [edit]

[Bearbeiten] Helper-Klassen

(C++11)
Hash-Unterstützung für std::shared_ptr
Original:
hash support for std::shared_ptr
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(class Template-Spezialisierung) [edit]

[Bearbeiten] Hinweise zur Umsetzung

In einer typischen Implementierung hält std::shared_ptr nur zwei Zeigern:
Original:
In a typical implementation, std::shared_ptr holds only two pointers:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • ein Pointer auf das referenzierte Objekt
    Original:
    a pointer to the referenced object
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • ein Zeiger auf Steuerblock
    Original:
    a pointer to control block
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
Wo der Steuerblock ist ein dynamisch-zugewiesene Objekt, gilt:
Original:
Where the control block is a dynamically-allocated object that holds:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
  • ein Zeiger auf das verwaltete Objekt oder dem verwalteten Objekt
    Original:
    a pointer to the managed object or the managed object itself
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • Die deleter
    Original:
    the deleter
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • der Verteiler
    Original:
    the allocator
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
  • die Zahl der shared_ptrs, die das verwaltete Objekt besitzen
    Original:
    the number of shared_ptrs that own 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.
  • die Anzahl der weak_ptrs, die das verwaltete Objekt beziehen
    Original:
    the number of weak_ptrs that refer to 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.
Wenn shared_ptr indem erstellt std::make_shared oder std::allocate_shared der Steuerblock hält das verwaltete Objekt direkt als Daten-Mitglied. Wenn shared_ptr durch den Aufruf eines Konstruktors erstellt wird, wird ein Zeiger gespeichert .
Original:
When shared_ptr is created by calling std::make_shared or std::allocate_shared, the control block holds the managed object directly, as a data member. When shared_ptr is created by calling a constructor, a pointer is stored.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Der Zeiger des shared_ptr direkt gehalten ist, die durch get() zurückgegeben, während der Zeiger / Gegenstand durch den Steuerblock gehalten ist diejenige, die gelöscht werden, wenn die Anzahl der gemeinsamen Eigentümer Null erreicht wird: diese Zeiger sind nicht notwendigerweise gleich .
Original:
The pointer held by the shared_ptr directly is the one returned by get(), while the pointer/object held by the control block is the one that will be deleted when the number of shared owners reaches zero: these pointers are not necessarily equal.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Die Destruktor shared_ptr dekrementiert die Anzahl der gemeinsam Eigentümer des Steuerblocks, und wenn das Null erreicht, ruft der Steuerblock die destructor des verwalteten Objekts, sondern der Steuerblock nicht deallocate selbst, bis der Zähler gleich Null ist std::weak_ptr als auch .
Original:
The destructor of shared_ptr decrements the number of shared owners of the control block, and if that reaches zero, the control block calls the destructor of the managed object, but the control block does not deallocate itself until the std::weak_ptr counter reaches zero as well.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Von „http://de.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr&oldid=20603“