oop tutorials

[Simen Kjaeraas]

On Tue, 04 Mar 2008 17:38:31 +0100, Saaa <empty at needmail.com> wrote:

>> Could anybody give a simple example of unallocated class reference use?
>> I think that would explain it all to me :)
>
> Class className; // This will create a reference
> className=new Class(); // This will allocate an instance of Class
>
> Why do I need to name the class twice?
> Is there a shortcut?


   Class className = new Class();

should work, as should

   auto className = new Class();


>
> And, could I do:
>
> Class className;
> className=new Class_2();

Depending on whether or not Class_2 is inherited from Class, this might  
work.
i.e, this works

class Foo{}
class Bar : Foo{}

Foo f = new Bar();

And this does not:

class FooBar{}
class BarFoo{}

FooBar f = new BarFoo();


> I know some of my questions might be interpreted as being rhetorical,  
> when
> they really aren't.
> I am that unknowing :)

Hey, we all started out knowing nothing. :p

-- Simen