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I never said that the type was known before runtime in OO. Your not a bug comment sounds awfully like an all bugs are features. Implementing static member funct

• 1718627440 1y ago
  > Implementing static member functions this way would cause undefined behavior, which is a bug. Yes. My point is, that it can't be a static member function, because it's overridden by subclasses.
  • ryao 1y ago
    It cannot be overridden by subclasses without risking undefined behavior because there is no this pointer for it to use.
    • 1718627440 1y ago
      Yes it can. It simply means the subclass implementation has no access to a this pointer. When would undefined behaviour occur here? When a function tries to use a parameter that does not exist in the function signature, that's a compile time error not UB. Maybe you think that, because a this pointer is needed for dynamic dispatch? A this pointer exists there, it is just not passed to the implementation.