40 Thieves:

You can''t use the . operator on a pointer, unless you do this:


(*ptr).Sound();



Which is defined to mean exactly the same thing as the -> operator. A virtual function is a virtual function - you can''t mix and match where you want (because it wouldn''t make any sense). However, you can call any of the base class versions from within a derived class''s virtual function:


class Animal
{
public:
virtual void Sound() {}
};

class Dog
: public Animal
{
public:
virtual void Sound() { Animal::Sound() }



heh heh I don''t know how the VB discussion got started, but it''s interesting...I used QBASIC so long ago...ah, memories...

But what _is_ the technical definition of OOP?



- null_pointer
Sabre Multimedia

So in more englishish terms, VB is OOP already? Microsoft said that VB7 is going to finally have OOP, but I guess VB6 already has it.

So is it true?

------------------------
Captured Reality

VB still requires runtimes from my knowledge and it is possible to create an executable without writing ANY code (course it will suck). And yes, i have programmed a little VB myself.

-----------------------------

A wise man once said "A person with half a clue is more dangerous than a person with or without one."

Right.

So OOP is exactally those 3 things?

------------------------
Captured Reality

(That''s what my C++ book says, that is that nicba says, and that''s even what I say, but there should be more articles on this subject on the web...especially considering how importantly this topic is regarded...)

If you don''t include those three things, the definition of OOP seems to disintegrate into one of those "every-is-everything-else; everything-is-relative" definitions, which is the epitome of uselessness.

method - 1. a way of doing something, especially according to a defined plan. 2. the habit of acting according to plan and order; system in doing things; order in thinking.

methodology - 1. the science of method. 2. the system of methods or procedures used in any field. 3. a branch of logic dealing with the application of the principles of that science in the production of knowledge. 4. the methods of teaching; the branch of education dealing with the means and ways of instruction.

Perhaps some people can write software without a clear goal or even without a clear methodology, but I can''t.



- null_pointer
Sabre Multimedia