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    std::shared_ptr::reset

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    C++
     
    Utilities-Bibliothek
     
    Dynamische Speicherverwaltung
    Low-Level-Speicherverwaltung
    Zuweiser
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    Allocators
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    allocator
    allocator_traits(C++11)
    allocator_arg_t(C++11)
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    Intelligente Zeiger
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    Smart pointers
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    unique_ptr(C++11)
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    std::shared_ptr
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    Modifiers
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    shared_ptr::reset
    shared_ptr::swap
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    std::hash
     
    void reset();
    		 (1) (seit C++11)
    template<class Y >
    void reset( Y* ptr );
    		 (2) (seit C++11)
    template<class Y, class Deleter >
    void reset( Y* ptr, Deleter d );
    		 (3) (seit C++11)
    template<class Y, class Deleter, class Alloc >
    void reset( Y* ptr, Deleter d, Alloc alloc );
    		 (4) (seit C++11)
    Ersetzt das verwaltete Objekt mit einem Objekt, auf das ptr. Optional deleter d zugeführt werden kann, die später verwendet werden, um das neue Objekt zu zerstören, wenn keine shared_ptr Objekte, die es zu besitzen. Standardmäßig wird delete Ausdruck als deleter verwendet. Proper delete Ausdruck, der dem bereitgestellten Typ immer gewählt wird, ist dies der Grund, warum die Funktion als Vorlage mit einem separaten Parameter Y umgesetzt wird .
    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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    Wenn *this besitzt bereits ein Objekt und es ist die letzte shared_ptr es zu besitzen, wird das Objekt durch den Besitz deleter zerstört .
    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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    Wenn das Objekt, auf das ptr ist bereits im Besitz der Funktion führt zu einem undefinierten Verhalten .
    Original:
    If the object pointed to by ptr is already owned, the function results in undefined behavior.
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    1)
    Gibt den Besitz des verwalteten Objekts, falls vorhanden. Nach dem Aufruf verwaltet *this kein Objekt .
    Original:
    Releases the ownership of the managed object, if any. After the call, *this manages no object.
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    2-4)
    Ersetzt das verwaltete Objekt mit einem Objekt, auf das ptr. Y muss eine vollständige Art und implizit konvertierbar T sein. Zusätzlich:
    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)
    Verwendet die delete-Ausdruck als deleter. Eine gültige löschen Ausdruck muss verfügbar sein, dh delete ptr müssen gut ausgebildet sein, genau definierte Verhalten und nicht werfen keine Ausnahmen. Effektiv nennt 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)
    Verwendet die angegebene deleter d als deleter. Deleter muss für die Art kündbare T, dh d(ptr) müssen gut geformt sein, genau definierte Verhalten und nicht werfen keine Ausnahmen. Deleter müssen CopyConstructible sein. Effektiv nennt 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)
    Gleich wie (3), sondern nutzt zusätzlich eine Kopie des alloc für die Zuweisung von Daten für den internen Gebrauch. Alloc muss ein Allocator sein. Der Copy-Konstruktor und Destruktor dürfen keine Ausnahmen auslösen. Effektiv nennt 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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    Inhaltsverzeichnis

    [Bearbeiten]Parameter

    ptr -
    Zeiger auf ein Objekt Eigentum erwerben
    Original:
    pointer to an object to acquire ownership of
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    d -
    deleter zum Löschen des Objekts zu speichern
    Original:
    deleter to store for deletion of the object
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    alloc -
    allocator für interne Zuweisungen verwenden
    Original:
    allocator to use for internal allocations
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    [Bearbeiten]Rückgabewert

    (None)
    Original:
    (none)
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    [Bearbeiten]Ausnahmen

    1)
    noexcept specification:  
    noexcept
      (seit C++11)
    2-4)
    Wie von der zuständigen Konstruktor angegeben
    This section is incomplete
    .
    Original:
    As specified by the relevant constructor
    This section is incomplete
    .
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    [Bearbeiten]Beispiel

    This section is incomplete
    Reason: no example

    [Bearbeiten]Siehe auch

    		 erzeugt einen neuen shared_ptr
    (öffentliche Elementfunktion)[edit]
    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/memory/shared_ptr/reset&oldid=29442“
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