CS202 3- ‹#›
Virtual Inheritance
nA virtual base class is specified in our class
derivation lists, with the
keyword virtual before each common base
class name as part of the base class header.
class common_base {...};
class base_1 : virtual public common_base
{...};
class base_2 : virtual public common_base
{...};
class derived : public base_1, public
base_2 {...};
nEach path leading from the derived class to the common base class must specify that the common base class is a virtual base class.
nIf the common base class is not a direct base class of
the derived class, then
the derived class does not need to use
the keyword virtual in the derivation list