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From: dmurdoch@watstat.waterloo.edu (Duncan Murdoch)
Newsgroups: comp.lang.pascal
Subject: Re: I/O checking
Keywords: Turbo Pascal, I/O checking
Message-ID: <1991Jun7.025541.9437@maytag.waterloo.edu>
Date: 7 Jun 91 02:55:41 GMT
References: <6832@gara.une.oz.au>
Sender: news@maytag.waterloo.edu (News Owner)
Organization: University of Waterloo
Lines: 15

In article <6832@gara.une.oz.au> ijohnson@gara.une.oz.au (Ian Johnson) writes:
>
>If I have a program with several units, and switch the I/O checking off
>in one of them, {$I-}, does this affect checking in the other units?

No.

$I- affects the way code is generated - there's no call to an error status 
routine in code generated with $I- in effect.

There's one long range effect of $I-, though:  after an error occurs, all I/O
fails until the error is cleared by a call to IOResult.  

Duncan Murdoch
dmurdoch@watstat.waterloo.edu