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From: Marin David Condic <mcondic.auntie.spam@acm.org>
Subject: Re: Ada to C++ translator?
Date: Sun, 25 Feb 2001 10:21:31 -0500
Date: 2001-02-25T15:22:22+00:00	[thread overview]
Message-ID: <3A9922FB.5D5C0479@acm.org> (raw)
In-Reply-To: l5Ul6.906$6L4.150105110@newssvr16.news.prodigy.com

Well, yes, in theory. However, in practice, I think that what was intended was
actually achieved. Do you remember Pascal compilers wherein the deviations were
of the form "I think feature X is inefficient or hard to implement, so I
modified the syntax and semantics to give you feature Y and no other compiler
did it the same way." Of course, Pascal was a fairly simple language, yet it
still had deviations from the "standard" definition in most compilers. More
complex languages were worse.

What we have today is a case where compilers purporting to be "Ada Compilers"
don't do screwy things like not implement Tasks (because its too hard) or change
the memory allocation/deallocation scheme from new/Unchecked_Deallocation to
some other scheme like mark/new/delete (because its more efficient). Sure, there
may be missing annexes and you may find some corner-case in the language that
doesn't work right, but mostly you get the full language. At least I know of no
important exceptions.

I think that's a useful improvement that Ada brought along and ought to be a
selling point because AFAIK, C++ is a long way from this goal.

MDC

Ken Garlington wrote:

> With a caveat that the term "full language" could mean (a) the Ada83
> dialect, (b) some subset of the Ada95 annexes, or even (c) known cases where
> a validation test fails.
>
> The reality is that a vendor can hopefully tell you which tests will pass
> for a given environment (compiler switches, etc.), as well as any known
> deficiencies. You may or may not be able to derive something useful from
> that information with regard to how much of the language is actually
> implemented.

--
=============================================================
Marin David Condic - Pace Micro - http://www.pacemicro.com/
Send Replies To: m c o n d i c @ a c m . o r g
Visit my web site at:  http://www.mcondic.com/

    "I'd trade it all for just a little more"
        --  Charles Montgomery Burns, [4F10]
=============================================================





  reply	other threads:[~2001-02-25 15:21 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-02-09 19:17 Ada to C++ translator? Robert Brantley
2001-02-09 20:48 ` Britt Snodgrass
2001-02-09 23:35   ` Jeffrey Carter
2001-02-09 23:47   ` Brian Rogoff
2001-02-12 15:07     ` Ted Dennison
2001-02-12 15:49       ` Brian Rogoff
2001-02-13 19:36         ` Ted Dennison
2001-02-12 20:25       ` David C. Hoos, Sr.
2001-02-11 10:36 ` Gautier
2001-02-11 11:15   ` Pascal Obry
2001-02-11 11:15   ` Jean-Pierre Rosen
2001-02-12 10:36     ` David C. Hoos, Sr.
2001-02-11 13:15   ` Larry Kilgallen
2001-02-11 14:50   ` Ken Garlington
2001-02-11 15:58   ` Florian Weimer
2001-02-11 17:05   ` Aaro Koskinen
2001-02-15 23:47   ` Robert Brantley
2001-02-16 15:20     ` Ted Dennison
     [not found]       ` <cyik6.1725$DE.61421700@newssvr10-int.news.prodigy.com>
     [not found]         ` <%Wvk6.102$aw5.380@www.newsranger.com>
2001-02-21  0:33           ` Ken Garlington
2001-02-21 10:54             ` Ole-Hjalmar Kristensen
2001-02-21 12:40               ` Ken Garlington
2001-02-21 12:56                 ` Ole-Hjalmar Kristensen
2001-02-21 18:36             ` Brian Rogoff
2001-02-21 19:05               ` Marin David Condic
2001-02-21 21:26                 ` Simon Wright
2001-02-23 21:05                   ` Marin David Condic
2001-02-24  8:38                     ` Simon Wright
2001-02-24 16:22                     ` Nick Williams
2001-02-24 19:22                       ` Marin David Condic
2001-02-24 19:38                         ` Ken Garlington
2001-02-25 15:21                           ` Marin David Condic [this message]
2001-02-12 15:33 ` Ted Dennison
2001-02-12 22:34   ` UML (Was: Ada to C++ translator?) Frode Tennebø
2001-02-14  4:48     ` Ken Garlington
2001-02-14  6:19       ` Ray Blaak
2001-02-14 20:38       ` Nick Williams
2001-02-15  7:57         ` Ray Blaak
2001-02-15 11:14           ` Pierre Dissaux
2001-02-15 23:37   ` Ada to C++ translator? Robert Brantley
2001-02-16  0:34     ` tmoran
2001-02-16  4:59       ` Lao Xiao Hai
2001-02-16 15:20         ` Marin David Condic
2001-02-16 11:02     ` Tarjei T. Jensen
2001-02-16 13:34       ` Ken Garlington
2001-02-16 14:55         ` Marin David Condic
2001-02-16 21:04         ` tmoran
2001-02-16 15:44     ` Ted Dennison
2001-02-21 13:21       ` Bob Jacobs
2001-02-21 14:14         ` Ted Dennison
2001-02-21 14:59           ` Bob Jacobs
2001-02-21 15:58         ` Martin Dowie
2001-02-21 16:15           ` Bob Jacobs
2001-02-21 16:57             ` Ted Dennison
2001-02-22  1:39               ` Andrew Berg
2001-02-22  9:47                 ` STL for Ada (was: Re: Ada to C++ translator?) Stefan Nobis
2001-02-22 15:20                   ` Lutz Donnerhacke
2001-02-22 15:30                   ` Ted Dennison
2001-02-22 17:55                   ` Brian Rogoff
2001-02-22  9:09             ` Ada to C++ translator? Martin Dowie
2001-02-22 13:32               ` Bob Jacobs
2001-02-22 14:30               ` Ted Dennison
2001-02-22  9:17             ` Martin Dowie
2001-02-15 23:09 ` Robert Brantley
  -- strict thread matches above, loose matches on Subject: below --
2001-02-22 10:40 gautier
2001-02-22  9:24 gautier
2001-02-22 10:21 ` Martin Dowie
2001-02-21 15:44 gautier
1998-02-04  0:00 Ada to C translator ? Stewart French
1998-02-05  0:00 ` Gautier
1994-11-16 13:10 Eric Labbe
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