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From: dick@ucsfcca.UUCP (Dick Karpinski)
Newsgroups: net.lang.mod2
Subject: Re: structured function values
Message-ID: <416@ucsfcca.UUCP>
Date: Mon, 14-Oct-85 21:40:01 EDT
Article-I.D.: ucsfcca.416
Posted: Mon Oct 14 21:40:01 1985
Date-Received: Thu, 17-Oct-85 00:40:34 EDT
References: <53@noscvax.UUCP>
Reply-To: dick@ucsfcca.UUCP (Dick Karpinski)
Distribution: net
Organization: UCSF Computer Center
Lines: 26

In article <53@noscvax.UUCP> broman@noscvax.UUCP (Vincent P. Broman) writes:
>     Modula-2's restriction of function procedure results to be of 
>unstructured types seems to have no solid justification.  Many implementations 

Modula-2 does not restrict function results.  Some implementations do
but Wirth allowed that those were indeed implementation restrictions.
The British Standards Institution is midway into producing a candidate
for ISO standardization, and they allow functions to return anything.
I don't know why you should not be able to dereference or subscript
function results, but neither the Report nor the developing standard
permit that.  

Incidentally, I am acting as the US distributer for BSI documents on
Modula-2.  Write for details.  Mostly, documents are available for
about 10 cents per page.  i would be anxious to discover any way to
do low volume demand publishing from paper masters for less.  Also
want to find access to OCR in order to make machine readable without
rekeying 50 page documents.

Dick

-- 
Dick Karpinski    Manager of Unix Services, UCSF Computer Center
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