Virtual inheritance is a C++ mechanism that assures that grandchild derived classes inherit only one copy of a base class's member variables.
To avoid ambiguity in inheritance, the virtual keyword is employed. This is to avoid ambiguity when many base classes have member functions with the same prototype.
When dealing with multiple inheritance, virtual inheritance is used to avoid several instances of the same class from appearing in the inheritance hierarchy.
A virtual function is a base class member function that will be redefined in derived classes. In essence, the base class uses a virtual function to ensure that the method is overridden. This is especially true when a pointer from a base class points to a derived class object.
Hybrid inheritance is a type of inheritance that combines multiple, simple, and hierarchical inheritance. One class is descended from a single base class in simple inheritance. A class is derived from two classes in multiple inheritances, where one of the parents is itself a derived class.
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