Difference between revisions of "cpp/language/final"
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Specifies that a [[cpp/language/virtual|virtual function]] can not be overridden in a derived class or that a class cannot be inherited | Specifies that a [[cpp/language/virtual|virtual function]] can not be overridden in a derived class or that a class cannot be inherited | ||
Revision as of 13:11, 15 June 2012
Specifies that a virtual function can not be overridden in a derived class or that a class cannot be inherited
Contents |
Syntax
Template:sparam final ;
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class Template:sparam final Template:sparam
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| This section is incomplete Reason: function_declaration is probably wrong terminology |
Explanation
In a virtual function declaration, it specifies that the function may not be overridden by derived classes
final is an identifier with a special meaning when used in a member function declaration or class head, otherwise it's not reserved.
Example
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 { };
See also
- override specifier (since C++11)
