The base/derived class relationship is explicitly recognized in C++ by predefined standard conversions
i.e., a pointer to a derived class may always be assigned to a pointer to a base class that was inherited publicly. But not vice-versa.
When combined with dynamic binding, this special relationship between inherited class types promotes a type-secure, polymorphic style of programming.
– i.e., the programmer need not know the actual type of a class at compile-time.
– Note, C++ is not arbitrarily polymorphic.
- i.e., operations are not applicable to objects that don’t contain definitions of these operations at some point in their inheritance hierarchy.
i.e., a pointer to a derived class may always be assigned to a pointer to a base class that was inherited publicly. But not vice-versa.
When combined with dynamic binding, this special relationship between inherited class types promotes a type-secure, polymorphic style of programming.
– i.e., the programmer need not know the actual type of a class at compile-time.
– Note, C++ is not arbitrarily polymorphic.
- i.e., operations are not applicable to objects that don’t contain definitions of these operations at some point in their inheritance hierarchy.
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