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Re: [plt-scheme] define-datatype


define-datatype is an extension of Scheme that Friedman 
et al defined. 

If you're using 103p1, you need to download their package for DrScheme. 

If you're using 200alphaN, just set the language to EoPL (Essentials)
and you're all set. 

-- Matthias


At 03 May 2002 12:22:36 +0100, Paulo J. Matos wrote:
> Hi all,
> I've been EOPL by Friedman and he in page 44 of his book mentions
> that define-datatype is a scheme extension. I've not been able to
> use it in DrScheme. I've searched the Help Desk and I know that
> there is a eopl collection but how can I use it?
> 
> 
> 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!