Polymorphism (Inheritance with Dynamic Binding)
Problem: Multiple Sub-Types
Problem: Only Derived Type Knows Real Implementation
Problem: Clients Must Know Object's Type when Statically Bound
Solution: Use Late Binding to Allow Objects to Determine Impl.
Solution: Base Class Defines Abstraction & Derived Supplies Impl.
Key Points
"Inheritance of Type"
"Inheritance of Class"
Dynamic vs. Static Typing
Container Problem with Static Typing
Message Binding
Pointers To Functions
An Inside Look at a Member Function Pointer
C++ Class Structure Mapped to C Implementation
C++ Call Mapped to C
Email: jim.stafford@apl.jhu.edu
Home Page: http://www.apl.jhu.edu/~jcstaff