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std::pointer_traits::pointer_to

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Dynamische Speicherverwaltung
Low-Level-Speicherverwaltung
Zuweiser
Original:
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)
Initialisierter Speicher
Original:
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
Intelligente Zeiger
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Smart pointers
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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
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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)
Verschiedenes
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Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C-Bibliothek
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C Library
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std::pointer_traits
Member-Funktionen
Original:
Member functions
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pointer_traits::pointer_to
 
Defined in header <memory>
static pointer pointer_traits<Ptr>::pointer_to(element_type& r );
(seit C++11)
static pointer pointer_traits<T*>::pointer_to(element_type& r);
(seit C++11)
Erzeugt ein dereferenceable Zeiger auf das Argument .
Original:
Constructs a dereferenceable pointer to its argument.
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1)
Die Version dieser Funktion in der nicht-spezialisierten std::pointer_traits Vorlage ruft einfach Ptr::pointer_to(r), und wenn Ptr nicht zur Verfügung stellt eine statische Member-Funktion pointer_to, Instanziierung dieser Funktion ist ein Fehler bei der Kompilierung .
Original:
The version of this function in the non-specialized std::pointer_traits template simply calls Ptr::pointer_to(r), and if Ptr does not provide a static member function pointer_to, instantiation of this function is a compile-time error.
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2)
Die Version dieser Funktion in der Spezialisierung der std::pointer_traits für Zeiger Typen zurückgibt std::addressof(r)
Original:
The version of this function in the specialization of std::pointer_traits for pointer types returns std::addressof(r)
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Inhaltsverzeichnis

[Bearbeiten] Parameter

r -
Verweis auf ein Objekt vom Typ element_type&, außer wenn ELEMENT_TYPE ist void, in welchem ​​Fall die Art der r ist nicht spezifiziert
Original:
reference to an object of type element_type&, except if element_type is void, in which case the type of r is unspecified
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[Bearbeiten] Rückgabewert

Ein Zeiger auf dereferenceable r, des Typs pointer_traits <> :: Zeiger .
Original:
A dereferenceable pointer to r, of the type pointer_traits<>::pointer.
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[Bearbeiten] Ausnahmen

1)
Unspezifisch (typischerweise wie Ptr::pointer_to)
Original:
Unspecified (typically same as Ptr::pointer_to)
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2)
noexcept specification:  
noexcept
  (seit C++11)

[Bearbeiten] Notes

Die boost library version dieser Funktion gibt pointer(std::addressof(r)) wenn Ptr :: pointer_to existiert nicht .
Original:
The boost library version of this function returns pointer(std::addressof(r)) if Ptr::pointer_to does not exist.
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[Bearbeiten] Siehe auch

(C++11)
erhält tatsächlichen Adresse eines Objekts, selbst wenn der Bediener' & überlastet ist
Original:
obtains actual address of an object, even if the & operator is overloaded
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(Funktions-Template) [edit]
erhält die Adresse eines Objekts, selbst wenn operator& überladen ist
(öffentliche Elementfunktion of std::allocator) [edit]