Concrete classes

Lecture 4 - Slide 30 : 40

Concrete classes

Bjarne Stroustrup distinguishes between concrete classes and abstract classes

In a concrete class the representation is part of the class definition

In contrast, a non-concrete class can provides an interfaces to a variety of different representations

Concrete classes
- Value types, as programmed with structs in C#
- Similar to built in types
- No superclasses - no subclasses
- Can be allocated on the stack
Non-concrete classes
- Classes with pure virtual member functions: Polymorphic types
- Classes in class hierarchies
- Object-oriented programming

The class Date in §16.3 in The C++ Prog. Lang. (4. edition) is an example of a concrete class