From: John English <je@bton.ac.uk>
Subject: Re: Philosophical Question (End_Of_File)
Date: 2000/02/14
Date: 2000-02-14T11:22:06+00:00 [thread overview]
Message-ID: <38A7E60C.F2CDA501@bton.ac.uk> (raw)
In-Reply-To: 38A4799B.6D2E7ABE@ftw.rsc.raytheon.com
Wes Groleau wrote:
> We're taught to embed file input statements inside a control structure
> with an End_Of_File test, right?
>
> The idea is that instead of reading and then handling the exception, we
> avoid the exception, right?
Sometimes you can't use End_Of_File reliably -- e.g. if you want
to read an integer from a file, End_Of_File may be false, but it
may become true in the process of skipping leading whitespace in
search of the start of the integer, so in this case you are forced
to use End_Error to detect the end of the file instead...
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prev parent reply other threads:[~2000-02-14 0:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-02-11 0:00 Philosophical Question (End_Of_File) Wes Groleau
2000-02-11 0:00 ` Gautier
2000-02-12 0:00 ` Gautier
2000-02-12 0:00 ` Pascal Martin
2000-02-13 0:00 ` Robert Dewar
2000-03-14 0:00 ` CFP OOPSLA 2000 Sherman Alpert
2000-02-14 0:00 ` John English [this message]
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