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From: johnherro@aol.com (John Herro)
Subject: Re: GNAT messages and the not operator (pitfall alert!)
Date: 1996/10/29
Date: 1996-10-29T00:00:00+00:00	[thread overview]
Message-ID: <554f6p$4m8@newsbf02.news.aol.com> (raw)
In-Reply-To: dewar.846332907@merv


dewar@merv.cs.nyu.edu (Robert Dewar)
corrects my error, writing that Ada
requires parentheses when mixing
"and" and "or" in an expression.

I'm surprised, but of course you're right!  I was thinking of mentioning
this in the "Loose Ends and Pitfalls" section of my AdaTutor program, but
then decided against it.  If a person writes A and B or C, the compiler
will complain, so that's not really a pitfall, just a possible surprise..

Fortunately, the tutorial _does_ already list as a pitfall the fact that
-A mod B means -(A mod B).

- John Herro
Software Innovations Technology
http://members.aol.com/AdaTutor
ftp://members.aol.com/AdaTutor
-----
The mathematical relationship between Christmas and Halloween:
31     =  25
  OCT       DEC




  reply	other threads:[~1996-10-29  0:00 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-10-24  0:00 GNAT messages and the not operator (pitfall alert!) Robert Dewar
1996-10-24  0:00 ` Robert Dewar
1996-10-25  0:00   ` whiting_ms@corning.com (Matt Whiting)
1996-10-26  0:00     ` David C. Hoos, Sr.
1996-10-27  0:00     ` Robert Dewar
1996-10-28  0:00       ` Matthew S. Whiting
1996-10-26  0:00   ` John Herro
1996-10-26  0:00     ` Matthew Heaney
1996-10-29  0:00       ` Robert Dewar
1996-10-26  0:00     ` Robert Dewar
1996-10-29  0:00       ` John Herro [this message]
1996-10-29  0:00         ` Robert Dewar
1996-10-30  0:00     ` Dr. Peter E. Obermayer
1996-10-30  0:00       ` John Herro
1996-10-30  0:00         ` Robert Dewar
1996-11-01  0:00         ` User Password expiration date extractor? Stein-Aksel Basma
1996-10-29  0:00   ` GNAT messages and the not operator (pitfall alert!) Norman H. Cohen
1996-10-29  0:00     ` whiting_ms@corning.com (Matt Whiting)
1996-10-30  0:00       ` David C. Hoos, Sr.
1996-10-30  0:00         ` whiting_ms@corning.com (Matt Whiting)
1996-10-30  0:00           ` Norman H. Cohen
1996-10-30  0:00       ` Norman H. Cohen
1996-11-06  0:00         ` Richard A. O'Keefe
1996-11-18  0:00           ` Norman H. Cohen
1996-11-18  0:00             ` Robert Dewar
1996-10-30  0:00       ` Robert Dewar
1996-11-05  0:00     ` Robert Dewar
1996-10-28  0:00 ` Cary Jamison
1996-10-29  0:00   ` Robert Dewar
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