C.35 First enforcement is too broad, should only apply to base classes

Hi,

I believe the first bullet of the enforcement section of C.35 is too broad. The rule title says:

A base class destructor should be either public and virtual, or protected and non-virtual

Note that it only talks about base classes.

However, the enforcement says:

A class with any virtual functions should have a destructor that is either public and virtual or else protected and non-virtual.

So it talks about any class instead of a base class. This is rather strict, in my opinion.

Consider the following example:

class Base
{
    public: 
        virtual void foo() = 0;

    protected:
        // We don't want Base to be used polymorphically. 
        // We just want to enforce that Derived classes implement the public interface.
        // Therefore, use protected non-virtual destructor
        ~Interface() = default;
};

class Derived final : public Base
{
  public:
      void foo() override
      { 
          ....
      }
};

In this example, C.35 would be violated for Derived - it contains a virtual function foo, and the destructor is public non-virtual. Does that make sense or should the enforcement only apply to base classes?