Is this URL not up to date?

http://www.digitalmars.com/d/comparison.html

I noticed that it states that D doesnt have
inner classes, but as you know it does.

Phill.




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>Is this URL not up to date?
>
>http://www.digitalmars.com/d/comparison.html
>
>I noticed that it states that D doesnt have
>inner classes, but as you know it does.

It does? I didn't know about it. Thanks for telling me. Or do you mix it up with nested classes? Nested classes != inner classes!!!

The difference seems to be a bit blurred to me,
after reading this quote from this URL:
========================
Like other members, a nested class can be declared static (or not). A static
nested class is called just that: a static nested class. A nonstatic nested
class is called an inner class. These are illustrated in the following code:

class EnclosingClass{
    . . .
    static class AStaticNestedClass {
        . . .
    }
    class InnerClass {
        . . .
    }
}
===================================
http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html

Phill.


"Matthias Becker" <Matthias_member@pathlink.com> wrote in message news:c4ofkm$21ld$1@digitaldaemon.com...
> >Is this URL not up to date?
> >
> >http://www.digitalmars.com/d/comparison.html
> >
> >I noticed that it states that D doesnt have
> >inner classes, but as you know it does.
>
> It does? I didn't know about it. Thanks for telling me. Or do you mix it
up with
> nested classes? Nested classes != inner classes!!!
>
>


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But then again:

 Definition:  An inner class is a nested class whose instance exists within
an instance of its enclosing class and has direct access to the instance
members of its enclosing instance.

So it is clearly not an Inner class that D has.....

Phill.



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"Phill" <phill@pacific.net.au> wrote in message news:c4ogmn$22un$1@digitaldaemon.com...
> But then again:
>
>  Definition:  An inner class is a nested class whose instance exists
within
> an instance of its enclosing class and has direct access to the instance members of its enclosing instance.
>
> So it is clearly not an Inner class that D has.....

I was thinking about how great would it be to have that but i didn't know it
is
called inner class. It would solve a big design problem in one of my
projects!

On Sun, 04 Apr 2004 16:50:53 +0200, Ivan Senji wrote:

> "Phill" <phill@pacific.net.au> wrote in message news:c4ogmn$22un$1@digitaldaemon.com...
>> But then again:
>>
>>  Definition:  An inner class is a nested class whose instance exists
> within
>> an instance of its enclosing class and has direct access to the instance members of its enclosing instance.
>>
>> So it is clearly not an Inner class that D has.....
> 
> I was thinking about how great would it be to have that but i didn't know it
> is
> called inner class. It would solve a big design problem in one of my
> projects!

I don't know why we don't have them.

for your design problems just pass a pointer of the
outer (nesting?) class to the nested class
I do it all the time.

I can't believe that it would be any problem at all to add inner classes to the language.

Ant

"Ant" <duitoolkit@yahoo.ca> wrote in message news:pan.2004.04.04.14.00.38.516985@yahoo.ca...
> On Sun, 04 Apr 2004 16:50:53 +0200, Ivan Senji wrote:
>
> > "Phill" <phill@pacific.net.au> wrote in message news:c4ogmn$22un$1@digitaldaemon.com...
> >> But then again:
> >>
> >>  Definition:  An inner class is a nested class whose instance exists
> > within
> >> an instance of its enclosing class and has direct access to the
instance
> >> members of its enclosing instance.
> >>
> >> So it is clearly not an Inner class that D has.....
> >
> > I was thinking about how great would it be to have that but i didn't
know it
> > is
> > called inner class. It would solve a big design problem in one of my
> > projects!
>
> I don't know why we don't have them.
>
> for your design problems just pass a pointer of the
> outer (nesting?) class to the nested class
> I do it all the time.

I would do it too but i have some really small classes (not so many data) and the inner classes solution would be much nicer.

> I can't believe that it would be any problem at all to
> add inner classes to the language.
>
> Ant
>

On Sun, 04 Apr 2004 22:26:52 +0200, Ivan Senji wrote:

> "Ant" <duitoolkit@yahoo.ca> wrote in message news:pan.2004.04.04.14.00.38.516985@yahoo.ca...
>> On Sun, 04 Apr 2004 16:50:53 +0200, Ivan Senji wrote:
>>
>> > "Phill" <phill@pacific.net.au> wrote in message news:c4ogmn$22un$1@digitaldaemon.com...
>> >> But then again:
>> >>
>> >>  Definition:  An inner class is a nested class whose instance exists
>> > within
>> >> an instance of its enclosing class and has direct access to the
> instance
>> >> members of its enclosing instance.
>> >>
>> >> So it is clearly not an Inner class that D has.....
>> >
>> > I was thinking about how great would it be to have that but i didn't
> know it
>> > is
>> > called inner class. It would solve a big design problem in one of my
>> > projects!
>>
>> I don't know why we don't have them.
>>
>> for your design problems just pass a pointer of the
>> outer (nesting?) class to the nested class
>> I do it all the time.
> 
> I would do it too but i have some really small classes (not so many data) and the inner classes solution would be much nicer.
> 

We agree. I do that with nested classes,
and the nested class is a friend of the outer class
so it has access to all it's members.

this compiles and runs as expected:

public class A
{
	private int a;

	this()
	{
		new B(this);
	}

	private class B
	{
		int a;
		this(A outerClassThatIsAFriend)
		{
			outerClassThatIsAFriend.a = 1;
			a = 23;
			printf("B.this outerClassThatIsAFriend.a = %d\n", outerClassThatIsAFriend.a);
			printf("B.this a = %d\n", a);
		}
	}
}

int main(char[][] args)
{
	new A;
	return 0;
}




Ant

Ant wrote:
> I don't know why we don't have them.
[...]

What is the difference between an inner class and a nested class which is derived from its enclosing class?

So long!

On Mon, 05 Apr 2004 04:24:57 +0200, Manfred Nowak wrote:

> 
> Ant wrote:
>> I don't know why we don't have them.
> [...]
> 
> What is the difference between an inner class and a nested class which is derived from its enclosing class?
> 
> So long!

you only have one enclosing instance for all the inners you instanciate.

Ant