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C++ Coding Standard

Rule:  OOP#004Checked automatically with code checker

Synopsis:If you derive from more than one base class with the same parent, that parent shall be a virtual base class that has a default constructor and no data members
Severity Level:9
Category:Object Oriented Programming


This rule prevents potential problems caused by multiple assignments by the multiple derived classes of the common base class. It also avoids that the most derived class must explicitly initialize the common base class, which need not be its direct parent.