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override specifier

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Gibt an, dass ein virtuelle Funktion andere virtuelle Funktion überschreibt .
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Specifies that a virtuelle Funktion overrides another virtual function.
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Inhaltsverzeichnis

[Bearbeiten] Syntax

function_declaration override ;

[Bearbeiten] Erklärung

In einem Verfahren Erklärung gibt override, dass die Funktion muss Überschreiben einer Methode der Basisklasse .
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In a method declaration, override specifies that the function must be overriding a base class method.
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override wird eine Kennung mit einer besonderen Bedeutung, wenn nach der Funktion Deklaration verwendet, sonst ist es nicht reserviert .
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override is an identifier with a special meaning when used after function declaration, otherwise it's not reserved.
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[Bearbeiten] Beispiel

struct A
{
    virtual void foo();
    void bar();
};
 
struct B : A
{
    void foo() const override; // Error: Has a different signature from A::foo
    void foo() override; // OK: base class contains a virtual function with the same signature
    void bar() override; // Error: B::bar doesn't override because A::bar is not virtual
};

[Bearbeiten] Siehe auch