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override specifier

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Especifica que uma função virtual substitui outra função virtual.
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Specifies that a função virtual overrides another virtual function.
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Índice

[editar] Sintaxe

function_declaration override ;
Esta seção está incompleta
Motivo: function_declaration is probably wrong terminology

[editar] Explicação

Em uma declaração de método, override especifica que a função deve ser substituir um método de classe base.
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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 é um identificador com um significado especial quando usado após declaração da função, caso contrário não é reservado.
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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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[editar] Exemplo

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
};

[editar] Veja também

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