Why is the “virtuality” of methods implicitly propagated in C++?

Question

What is the reason for removing the ability to stop the propagation of methods virtuality?

Let me be clearer: In C++, whether you write \"virtual void foo()\" or \"v

Answer 1

C++11 added the contextual keyword final for this purpose.

class VectIterator : public Iterator
{
public:
    T& next() final { ... }
    ...
};

struct Nope : VecIterator {
    T& next() { ... } // ill-formed
};