Abstract Classes

[slarty]

There are good reasons for declaring an abstract class.

- Make a base class abstract, then you can subclass it. You can use it in polymorphism.
- Make it a "pure abstract class" by declaring its virtual methods as abstract

class MyBaseClass {
  virtual int GetSomething() = 0;
  virtual std::string GetName() = 0;
  virtual ~MyBaseClass();
};

Then the compiler should make sure that you never instantiate a MyBaseClass by accident (it would crash as soon as you called one of the virtual methods anyway).

Slarty