From: "Grein, Christoph" <christoph.grein@eurocopter.com>
Subject: Re: Why is Ada NOT a good choice for a beginner to programming?
Date: Fri, 10 Jan 2003 07:38:18 +0100 (MET)
Date: 2003-01-10T07:38:18+01:00 [thread overview]
Message-ID: <mailman.1042181162.27181.comp.lang.ada@ada.eu.org> (raw)
> > One complaint he had was that it be possible to define a Length
> > using derived types and still have "*" return values of type Length,
> > when it should return an area. He had a point, hadn't he?
> > OTOH, with only structural equivalence of types, and no way to derive
> > both an integral length type and an integral area type, that are really
> > diferent, how can you build areas into your types, such that the compiler
> > will prevent use of values of the wrong type?
> >
> > In which languages has this been fixed?
>
> This is relatively easy to do in C++.
> See http://www.fnal.gov/docs/working-groups/fpcltf/html/SIunits-summary.html
This is also easy in Ada.
For a collection of methods how to deal with dimensions in Ada, see
<http://home.T-Online.de/home/Christ-Usch.Grein/Ada/Dimension.html>
next reply other threads:[~2003-01-10 6:38 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-10 6:38 Grein, Christoph [this message]
2003-01-10 8:21 ` Why is Ada NOT a good choice for a beginner to programming? Hyman Rosen
2003-01-10 15:51 ` Kevin Cline
2003-01-11 18:32 ` Dimension checking was " Robert C. Leif
2003-01-13 17:34 ` Stephen Leake
2003-01-13 23:20 ` Kevin Cline
2003-01-10 19:00 ` Kevin Cline
-- strict thread matches above, loose matches on Subject: below --
2003-01-13 6:13 Grein, Christoph
2003-01-10 8:35 Grein, Christoph
2003-01-10 9:26 ` Hyman Rosen
2003-01-13 16:49 ` Hyman Rosen
2002-12-21 15:47 Alexandre E. Kopilovitch
2002-12-23 14:48 ` Wes Groleau
2002-12-21 3:30 David Wright
2002-12-21 5:44 ` sk
2002-12-23 14:29 ` Wes Groleau
2002-12-23 17:36 ` sk
2002-12-23 18:24 ` David Wright
2002-12-23 19:16 ` sk
2002-12-23 19:48 ` David Wright
2002-12-23 21:33 ` Wes Groleau
2002-12-23 21:17 ` Robert A Duff
2002-12-24 19:22 ` faust
2002-12-24 0:46 ` Robert A Duff
2002-12-24 9:41 ` Pascal Obry
2002-12-25 4:43 ` faust
2002-12-27 17:54 ` Warren W. Gay VE3WWG
2003-01-02 13:50 ` Wes Groleau
2002-12-25 7:24 ` AG
2003-01-02 9:56 ` John McCabe
2003-01-02 13:47 ` Wes Groleau
2003-01-08 19:39 ` faust
2003-01-08 2:44 ` Jeffrey Creem
2003-01-08 18:54 ` Wes Groleau
2003-01-08 19:48 ` chris.danx
2003-01-08 21:59 ` Wes Groleau
2003-01-09 15:31 ` Georg Bauhaus
2003-01-10 3:26 ` Hyman Rosen
2003-01-10 22:58 ` Georg Bauhaus
2003-01-10 3:51 ` Kevin Cline
2003-01-10 13:29 ` Wes Groleau
2003-01-11 12:09 ` Richard Riehle
2003-01-11 18:13 ` Wes Groleau
2003-01-09 16:52 ` faust
2003-01-08 21:57 ` Vinzent Hoefler
2003-01-09 0:59 ` faust
2003-01-09 0:59 ` faust
2003-01-08 13:14 ` Ted Dennison
2003-01-08 17:41 ` Warren W. Gay VE3WWG
2003-01-09 16:40 ` faust
2003-01-08 21:58 ` Vinzent Hoefler
2002-12-23 21:30 ` Wes Groleau
2002-12-23 22:11 ` David Wright
2002-12-30 16:22 ` Mark
2002-12-24 0:50 ` Craig Carey
2002-12-29 14:44 ` Colin Paul Gloster
2002-12-21 8:39 ` arvids lemchens
2002-12-21 8:53 ` Gautier
2002-12-21 9:42 ` Craig Carey
2002-12-21 10:44 ` Dale Stanbrough
2002-12-21 15:47 ` Alfred Hilscher
2002-12-21 19:01 ` tmoran
2002-12-22 1:06 ` Robert C. Leif
2002-12-23 14:56 ` Wes Groleau
2002-12-23 11:05 ` Alfred Hilscher
2002-12-22 0:34 ` James S. Rogers
2002-12-23 11:11 ` Alfred Hilscher
2002-12-23 14:32 ` Wes Groleau
2002-12-23 19:54 ` tmoran
2002-12-21 11:57 ` David Marceau
2002-12-21 15:59 ` Alfred Hilscher
2002-12-21 17:48 ` Britt Snodgrass
2002-12-21 20:05 ` Peter Hend�n
2002-12-22 1:54 ` faust
2002-12-22 1:28 ` Hyman Rosen
2002-12-22 2:11 ` Larry Kilgallen
2002-12-22 22:49 ` faust
[not found] ` <u7m2ua.qk3.ln@beastie.ix.netcom.com>
2002-12-23 14:55 ` Wes Groleau
2002-12-24 14:01 ` W D Tate
2002-12-24 20:06 ` Rod Haper
2002-12-25 0:37 ` noone
2002-12-26 13:23 ` W D Tate
2002-12-26 20:37 ` David Starner
2002-12-27 14:02 ` W D Tate
2003-01-13 12:18 ` John English
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