From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Beware: Rep spec on an enumeration type causes code explosion
Date: 1997/12/15
Date: 1997-12-15T00:00:00+00:00 [thread overview]
Message-ID: <dewar.882235092@merv> (raw)
In-Reply-To: gwinn-1212971925480001@dh5055236.res.ray.com
Joe says
<<I guess I would have to agree, because it's certainly too expensive for
realtime use. We will invent some such solution as you suggest.
>>
No, that's wrong. If you do nothing but assignments and comparisons, there
is no overhead in the use of enumeration types with holes. If you index
compact arrays, or worse, do Succ or Pred, then you should have an
implementation model which tells you immediately that there is extra
overhead. This should not be a mystery.
Similarly, how could you possibly be surprised that x'Image(a) causes
a formatted conversion, THAT IS WHAT IMAGE IS ABOUT. There is no resaon
to forbid this. If you need the function of Image, you should use it, if
not you should not. I must say I find the comment on Image *very* odd!
next prev parent reply other threads:[~1997-12-15 0:00 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-12-05 0:00 Beware: Rep spec on an enumeration type causes code explosion Joe Gwinn
1997-12-06 0:00 ` Robert Dewar
1997-12-06 0:00 ` Robert Dewar
1997-12-08 0:00 ` Joe Gwinn
1997-12-09 0:00 ` Stanley R. Allen
1997-12-06 0:00 ` Corey Minyard
1997-12-08 0:00 ` Joe Gwinn
1997-12-10 0:00 ` Robert Dewar
1997-12-06 0:00 ` Ken Garlington
1997-12-06 0:00 ` Robert Dewar
1997-12-06 0:00 ` Matthew Heaney
1997-12-10 0:00 ` GNORT information ( Was Re: Beware: Rep spec on an enumeration type causes code explosion ) Mark Bennison
1997-12-10 0:00 ` Robert Dewar
1997-12-06 0:00 ` Beware: Rep spec on an enumeration type causes code explosion David Marshall
1997-12-06 0:00 ` Kevin D. Heatwole
[not found] ` <dewar.881478386@merv>
1997-12-07 0:00 ` Robert Dewar
1997-12-09 0:00 ` Jim Gleason
1997-12-06 0:00 ` Tucker Taft
1997-12-06 0:00 ` Robert Dewar
1997-12-06 0:00 ` Robert Dewar
1997-12-08 0:00 ` Joe Gwinn
1997-12-08 0:00 ` Mats Weber
1997-12-09 0:00 ` Geert Bosch
1997-12-10 0:00 ` Robert Dewar
1997-12-09 0:00 ` Tucker Taft
1997-12-09 0:00 ` Matthew Heaney
1997-12-10 0:00 ` Charles Hixson
1997-12-10 0:00 ` Robert Dewar
1997-12-10 0:00 ` Jean-Pierre Rosen
1997-12-10 0:00 ` Ken Garlington
1997-12-11 0:00 ` John G. Volan
1997-12-11 0:00 ` Ken Garlington
1997-12-12 0:00 ` Matthew Heaney
1997-12-12 0:00 ` Ken Garlington
1997-12-16 0:00 ` John G. Volan
1997-12-17 0:00 ` Ken Garlington
1997-12-12 0:00 ` Joe Gwinn
1997-12-12 0:00 ` Robert Dewar
1997-12-16 0:00 ` John G. Volan
1997-12-17 0:00 ` Ken Garlington
1997-12-17 0:00 ` Joe Gwinn
1997-12-17 0:00 ` John G. Volan
1997-12-18 0:00 ` Joe Gwinn
1997-12-12 0:00 ` Alan E & Carmel J Brain
1997-12-12 0:00 ` Robert Dewar
1997-12-15 0:00 ` Tucker Taft
1997-12-16 0:00 ` Brian Rogoff
1997-12-10 0:00 ` Stephen Leake
1997-12-14 0:00 ` Robert Dewar
1997-12-10 0:00 ` Stanley R. Allen
1997-12-14 0:00 ` Robert Dewar
1997-12-11 0:00 ` Rakesh Malhotra
1997-12-11 0:00 ` Matthew Heaney
1997-12-12 0:00 ` Robert Dewar
1997-12-12 0:00 ` Rakesh Malhotra
1997-12-12 0:00 ` Samuel Tardieu
1997-12-12 0:00 ` Robert Dewar
1997-12-14 0:00 ` Alan E & Carmel J Brain
1997-12-12 0:00 ` Joe Gwinn
1997-12-15 0:00 ` Robert Dewar [this message]
1997-12-16 0:00 ` Joe Gwinn
1997-12-16 0:00 ` Robert Dewar
1997-12-06 0:00 ` Robert Dewar
1997-12-08 0:00 ` Joe Gwinn
1997-12-06 0:00 ` Robert Dewar
1997-12-07 0:00 ` Larry Kilgallen
-- strict thread matches above, loose matches on Subject: below --
1997-12-09 0:00 tmoran
1997-12-11 0:00 Marin David Condic, 561.796.8997, M/S 731-96
1997-12-11 0:00 Marin David Condic, 561.796.8997, M/S 731-96
1997-12-11 0:00 ` Robert Dewar
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