There is no need to use the final specifier inside a final class. Everything in it is final by default.
Similarly, there is no need to use the final specifier for union, because unions can neither extend other
classes nor be extended.
Noncompliant code example
class Base {
virtual void fun();
};
class Derived final : Base {
void fun() final; // Noncompliant
};
union MyUnion final { // Noncompliant
// ...
};
Compliant solution
class Base {
virtual void fun();
};
class Derived final : Base {
void fun() override;
};
union MyUnion {
// ...
};
