Path: news.daimi.aau.dk!news-feed.inet.tele.dk!mr.net!www.nntp.primenet.com!nntp.primenet.com!news.mathworks.com!fu-berlin.de!zrz.TU-Berlin.DE!news
From: Kai Petzke <petz0433@idefix.physik.tu-berlin.de>
Newsgroups: comp.lang.beta
Subject: Re: Multidimensional Repetitions (arrays)
Date: Wed, 11 Dec 1996 16:05:15 +0100
Organization: Technical University Berlin, Germany
Lines: 38
Message-ID: <32AECDAB.41C6@idefix.physik.tu-berlin.de>
References: <pxuybf7xpja.fsf@femto.cs.auc.dk>
NNTP-Posting-Host: foxylady.physik.tu-berlin.de
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Mailer: Mozilla 2.0 (X11; I; IRIX 5.2 IP20)
Xref: news.daimi.aau.dk comp.lang.beta:10905

Michael Hoehle wrote:
> 
> Hello All,
> 
> I'm looking for a smart way to implement multideminsional arrays in
> beta. Is there a smart way to do that or is it necessary to use a
> 1-dimensional repitition and make a map function of some kind?

One possible solution is to use a set of objects at the first level:

	(#
	   lev1: (# r: [5] ^integerObject #);
	   twoDimRep: [10] ^lev1;
	do
	   (* init rep *)
	   (for i:10 repeat &lev1[]->twoDimRep[i] for);

	   &integerObject[]->twoDimRep[3].r[3][];
	   5->twoDimRep[3].r[3];
	#);

> 
> In other words I'm looking for something like this:
> 
> \begin{not proper beta Syntax}
> 
>  twoDimRep : [10][5] ^integerObject;
> ..
>  &integerObject[]->twoDimRep[3][3][];
>  5->twoDimRep[3][3];
> 
> \end{not proper beta Syntax}
> 
> How can I code something like that in _legal_ Beta? Small pieces of
> code, refs to FAQ's or other ressources would be highly appreciated :)
> 
> Regards,
> Michael Hoehle