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From: "Mike Silva" <mjsilva@jps.net>
Subject: Re: Ada and Java. different behaviour. casting long to int problem.
Date: 1999/06/15
Date: 1999-06-15T00:00:00+00:00	[thread overview]
Message-ID: <7k64t7$igo$1@its.hooked.net> (raw)
In-Reply-To: 3766650F.705125B7@pwfl.com

I agree completely.  To my mind, quietly producing a non-intuitive result
(via truncation or wraparound) is in the same league as being able to
quietly step off the end of an array (something the Java folks beat up on
the C/C++ folks about constantly).

Mike

Marin David Condic wrote in message <3766650F.705125B7@pwfl.com>...

>I'm of the opinion that if one wishes behavior different from that of
>"normal" arithmetic, then this should be specified by a type with
>special properties. One acustomed to normal arithmetic is going to
>believe that X := X + 1 will yield the successor of X in the set of all
>integer numbers. If that isn't possible because of real world
>limitations, then we have encountered an exceptional condition which
>ought to raise some sort of flag and warn the world that the anticipated
>behavior was not achieved.







  reply	other threads:[~1999-06-15  0:00 UTC|newest]

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-06-12  0:00 Ada and Java. different behaviour. casting long to int problem nabbasi
1999-06-12  0:00 ` nabbasi
1999-06-12  0:00   ` jerry
1999-06-12  0:00     ` Robert Dewar
1999-06-14  0:00       ` Marin David Condic
1999-06-12  0:00 ` Tucker Taft
1999-06-12  0:00   ` PPAATT
1999-06-12  0:00   ` Keith Thompson
1999-06-12  0:00     ` kirck
1999-06-13  0:00       ` Robert Dewar
1999-06-12  0:00         ` Fred
1999-06-14  0:00           ` Mark Hood
1999-06-15  0:00             ` mike
1999-06-15  0:00               ` Samuel Mize
1999-06-15  0:00                 ` jerry
1999-06-16  0:00                   ` Richard D Riehle
1999-06-16  0:00                     ` jerry
1999-06-15  0:00               ` D'Arcy Smith
1999-06-16  0:00                 ` George W. Bayles
1999-06-16  0:00                   ` D'Arcy Smith
1999-06-17  0:00                   ` Matthew Heaney
1999-06-17  0:00                   ` Aidan Skinner
1999-06-15  0:00               ` Marin David Condic
1999-06-15  0:00                 ` Mike Silva [this message]
1999-06-15  0:00                   ` rich
1999-06-15  0:00                     ` Samuel Mize
1999-06-15  0:00                     ` tmoran
1999-06-15  0:00                       ` David Botton
1999-06-16  0:00                       ` Richard D Riehle
1999-06-16  0:00                       ` Samuel Mize
1999-06-15  0:00                     ` Marin David Condic
1999-06-15  0:00                       ` D'Arcy Smith
1999-06-15  0:00                         ` Keith Thompson
1999-06-16  0:00                           ` bill
1999-06-16  0:00                             ` George W. Bayles
1999-06-16  0:00                               ` Fraser Wilson
1999-06-17  0:00                               ` Chris Dollin
1999-06-17  0:00                               ` Aidan Skinner
1999-06-17  0:00                                 ` David Botton
1999-06-18  0:00                                   ` Dale Stanbrough
1999-06-18  0:00                                     ` David Botton
1999-06-18  0:00                                       ` Pascal Obry
1999-06-18  0:00                                     ` Matthew Heaney
1999-07-20  0:00                             ` Geoff Bull
1999-06-16  0:00                           ` D'Arcy Smith
1999-06-16  0:00                         ` Marin David Condic
1999-06-16  0:00                         ` Mike Silva
1999-06-16  0:00                           ` D'Arcy Smith
1999-06-16  0:00                             ` kirk
1999-06-16  0:00                               ` D'Arcy Smith
1999-06-17  0:00                                 ` Markus Kuhn
1999-06-17  0:00                                   ` john
1999-06-17  0:00                                     ` Ed Falis
1999-06-18  0:00                                     ` Aidan Skinner
1999-06-17  0:00                                   ` D'Arcy Smith
1999-06-16  0:00                               ` Hyman Rosen
1999-06-17  0:00                                 ` Robert I. Eachus
1999-06-17  0:00                                   ` Hyman Rosen
1999-06-17  0:00                                     ` bob
1999-06-18  0:00                                       ` Hyman Rosen
1999-06-18  0:00                                         ` mike
1999-06-18  0:00                                           ` Hyman Rosen
1999-06-19  0:00                                             ` Samuel Mize
1999-06-21  0:00                                               ` Marin David Condic
1999-06-19  0:00                                             ` Dale Stanbrough
1999-06-21  0:00                                               ` Marin David Condic
1999-06-21  0:00                                             ` Mike Silva
1999-06-17  0:00                                     ` Marin David Condic
1999-06-17  0:00                                 ` Jean-Pierre Rosen
1999-06-17  0:00                                   ` Marin David Condic
1999-06-17  0:00                                     ` Samuel Mize
1999-06-17  0:00                                       ` Marin David Condic
1999-06-22  0:00                                         ` Hyman Rosen
1999-06-22  0:00                                           ` Keith Thompson
1999-06-23  0:00                                             ` Marin David Condic
1999-06-24  0:00                                               ` Robert A Duff
1999-06-24  0:00                                                 ` Marin David Condic
1999-06-23  0:00                                           ` Marin David Condic
1999-06-18  0:00                                       ` Aidan Skinner
1999-06-17  0:00                                 ` Markus Kuhn
1999-06-20  0:00                                 ` Sera Hirasuna
1999-06-19  0:00                                   ` Kio
1999-06-20  0:00                                   ` Vladimir Olensky
1999-06-21  0:00                                   ` Samuel T. Harris
1999-06-22  0:00                                     ` Richard D Riehle
1999-06-22  0:00                                     ` Robert I. Eachus
1999-06-23  0:00                                       ` Richard D Riehle
1999-06-23  0:00                                       ` Aidan Skinner
1999-06-21  0:00                                   ` Hyman Rosen
1999-06-17  0:00                           ` Jean-Pierre Rosen
1999-06-16  0:00                         ` George W. Bayles
1999-06-16  0:00                           ` D'Arcy Smith
1999-06-16  0:00                           ` Tucker Taft
1999-06-17  0:00                             ` George W. Bayles
1999-06-17  0:00                               ` Tucker Taft
1999-06-17  0:00                                 ` bob
1999-06-16  0:00                           ` D'Arcy Smith
1999-06-17  0:00                           ` Larry Kilgallen
1999-06-22  0:00                       ` Robert Dewar
1999-06-23  0:00                         ` Marin David Condic
1999-06-23  0:00                           ` Vladimir Olensky
1999-06-23  0:00                             ` Roedy Green
1999-06-23  0:00                               ` Marin David Condic
1999-06-23  0:00                                 ` Keith Thompson
1999-06-24  0:00                                   ` Marin David Condic
1999-06-24  0:00                                   ` Mike Silva
1999-06-23  0:00                             ` Marin David Condic
1999-06-16  0:00                 ` Mark Hood
1999-06-17  0:00                   ` Jean-Pierre Rosen
1999-06-17  0:00                 ` Robert I. Eachus
1999-06-17  0:00                   ` Marin David Condic
1999-06-17  0:00             ` Markus Kuhn
1999-06-17  0:00               ` David Botton
1999-06-13  0:00   ` Robert Dewar
1999-06-14  0:00     ` tmoran
1999-06-30  0:00       ` John Merryweather Cooper
1999-07-01  0:00         ` Chad R. Meiners
1999-07-02  0:00           ` Robert Dewar
1999-07-02  0:00             ` John Merryweather Cooper
1999-07-03  0:00               ` Robert Dewar
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