[plt-scheme] Enumeration types

> 
> It would greatly depend on what you were doing. If you're using the 
> enumerated symbols to stand for some properties as they are very
> commonly used, then all you need are symbols in scheme. If you are
> using them another way, then I'm affraid I'd need more context as
> scheme is very different from C and often there are no equivalents
>

I just wish to associate a number to a symbol. So that each
symbol that is part of a enum has a given number associated with
it. This is part of a protocol. The protocol says that it send 1
for error, 2 for acknowledge, etc. I would like to treat these by
the name acknowledge and error and not by the number that could
change...

Any ideas?

Best regards,

Paulo
 
> -mike
> 
> On Mon, Jul 08, 2002 at 02:16:17PM +0100, Paulo J. Matos wrote:
> > [Please handle PLT Scheme list administrative tasks through the Web:
> >    http://list.cs.brown.edu/mailman/listinfo/plt-scheme]
> > 
> > Hi all,
> > 
> > Is it possible to create a enumeration type in scheme? Just like
> > enums in C? Or a way to emulate the workings?
> > 
> > I though about:
> > (define ENUM1 1)
> > (define ENUM2 2)
> > ...
> > (define ENUMn n)
> > 
> > but this is dirty... is there a cleaner way?
> > 
> > Best regards,
> > 
> > -- 
> > Paulo J. Matos : pocm(_at_)rnl.ist.utl.pt
> > Instituto Superior Tecnico - Lisbon    
> > Software & Computer Engineering - A.I.
> >  - > http://www.rnl.ist.utl.pt/~pocm 
> >  ---	
> > 	Yes, God had a deadline...
> > 		So, He wrote it all in Lisp!
> > 
> > 
> 
> 

-- 
Paulo J. Matos : pocm(_at_)rnl.ist.utl.pt
Instituto Superior Tecnico - Lisbon    
Software & Computer Engineering - A.I.
 - > http://www.rnl.ist.utl.pt/~pocm 
 ---	
	Yes, God had a deadline...
		So, He wrote it all in Lisp!