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    std::pointer_traits::pointer_to

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    C++
     
    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
    Original:
    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
    Original:
    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
    Original:
    Miscellaneous
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    pointer_traits(C++11)
    addressof(C++11)
    align(C++11)
    C-Bibliothek
    Original:
    C Library
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    std::pointer_traits
    Member-Funktionen
    Original:
    Member functions
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    pointer_traits::pointer_to
     
    definiert 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)
    		 ermittelt die tatsächlichen Adresse eines Objekts, selbst wenn der Dereferenzierungsoperator überladen ist
    (Funktions-Template)[edit]
    		 erhält die Adresse eines Objekts, selbst wenn operator& überladen ist
    (öffentliche Elementfunktion of std::allocator)[edit]
    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/memory/pointer_traits/pointer_to&oldid=27273“
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