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What is virtual base class? Give example. |
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Answer» The base class is declared as the virtual base class so that only one copy of its members are inherited by the derived class in a hybrid inheritance. For example, the derived class D derive from the classes B and C whereas both the classes B and C are derived from base class A. Then base class A is inherited twice and to avoid two copies of class A to class D, class A is declared virtual base class. |
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