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Tip of the Day
Language: C++
Expertise: Intermediate
Jan 22, 1999

Non-Virtual Multiple Inheritance

Virtual inheritance is used to avoid multiple copies of a base class in a multiple-inherited object. However, there are cases where multiple copies of a base are needed in a derived class. In such cases, virtual inheritance is intentionally avoided. Suppose you have a scrollbar class that serves as a base for two other subclasses:
 
  class Scrollbar{
    private: int x; int y;
    public:  void Scroll(units n);
   //
Danny Kalev
 
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