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final specifier

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C++
 
Sprache C++
Allgemeine Themen
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General topics
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Flusskontrolle
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Flow control
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Bedingte Ausführung Aussagen
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Conditional execution statements
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Iterationsanweisungen
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Iteration statements
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Gehe Aussagen
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Jump statements
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Funktionen
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Functions
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Funktion Erklärung
Lambda-Funktion Erklärung
Funktions-Template
inline-Spezifizierer
Exception-Spezifikationen (veraltet)
noexcept Spezifizierer (C++11)
Ausnahmen
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Exceptions
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Namespaces
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Namespaces
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Types
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Types
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decltype specifier (C++11)
Specifiers
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Specifiers
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cv Planer
Lagerdauer Planer
constexpr Spezifizierer (C++11)
auto Spezifizierer (C++11)
alignas Spezifizierer (C++11)
Initialisierung
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Initialization
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Literale
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Literals
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Expressions
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Expressions
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alternative Darstellungen
Utilities
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Utilities
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Types
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Types
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typedef declaration
Typ Aliasdeklaration (C++11)
Attribute (C++11)
Wirft
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Casts
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impliziten Konvertierungen
const_cast conversion
static_cast conversion
dynamic_cast conversion
reinterpret_cast conversion
C-Stil und funktionale Besetzung
Speicherzuweisung
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Memory allocation
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Classes
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Classes
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Class-spezifische Funktion Eigenschaften
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Class-specific function properties
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virtuelle Funktion
Überschreibungsspezifizierer (C++11)
endgültigen Spezifizierer (C++11)
explizit (C++11)
statisch
Besondere Member-Funktionen
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Special member functions
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Templates
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Templates
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Klassen-Template
Funktions-Template
Template-Spezialisierung
Parameter Packs (C++11)
Verschiedenes
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Miscellaneous
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Inline Montage
 
Gibt an, dass ein virtuelle Funktion kann nicht in einer abgeleiteten Klasse oder eine Klasse kann nicht vererbt werden überschrieben
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Specifies that a virtuelle Funktion can not be overridden in a derived class or that a class cannot be inherited
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Inhaltsverzeichnis

[Bearbeiten] Syntax

function_declaration final ;
class class_name final base_classes
This section is incomplete
Reason: function_declaration is probably wrong terminology

[Bearbeiten] Erklärung

Wenn in einer virtuellen Funktion Erklärung verwendet wird, gibt final, dass die Funktion kann nicht überschrieben werden von abgeleiteten Klassen .
Original:
When used in a virtual function declaration, final specifies that the function may not be overridden by derived classes.
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final ist eine Kennung mit einer besonderen Bedeutung, wenn in einem Mitgliedstaat Funktion Erklärung oder Klasse Kopf verwendet. In anderen Zusammenhängen ist nicht reserviert und kann zu Namen Objekte und Funktionen verwendet werden .
Original:
final is an identifier with a special meaning when used in a member function declaration or class head. In other contexts it is not reserved and may be used to name objects and functions.
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[Bearbeiten] Beispiel

struct A
{
    virtual void foo() final;
};
 
struct B final : A
{
    void foo(); // Error: foo cannot be overridden as it's final in A
};
 
struct C : B // Error: B is final
{
};

[Bearbeiten] Siehe auch

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