From: Robert Dewar <robert_dewar@my-deja.com>
Subject: Re: Ammo-zilla
Date: 1999/10/31
Date: 1999-10-31T00:00:00+00:00 [thread overview]
Message-ID: <7vhg2n$7ht$1@nnrp1.deja.com> (raw)
In-Reply-To: 7vb3c4$8a21@news.cis.okstate.edu
In article <7vb3c4$8a21@news.cis.okstate.edu>,
dvdeug@x8b4e53cd. (David Starner) wrote:
> As a side question: Ada 95's designers must have been familiar
> with Modula 3's support of garbage collection while letting
> real time stuff keep track of its own memory. What stopped
> them from adopting something like that for Ada 95?
By the way, speaking as someone quite familiar with garbage
collection (remember I chaired WG2.1 for many years, and
was responsible for the SPITBOL compilers -- see for example
the 1977 paper in SP&E that discusses a new GC algorithm used
very successfully in SPITBOL), I find the mixture of low level
system facilities, including those that let you break the type
model, and GC to be very worrisome, sounds like it can easily
create a debugging nightmare. Note that one of the reasons that
GC can succeed in Java is the extremely limited nature of the
language. GC is more practical in Ada if you severely restrict
the subset of Ada you support, and eliminate for instance
stuff like Unchecked_Conversion and address overlays.
What for instance does it mean to do address overlays that
reference the address of some object if the address of that
object changes due to GC? I have no idea what a sensible answer
to this question might be!
Sent via Deja.com http://www.deja.com/
Before you buy.
next prev parent reply other threads:[~1999-10-31 0:00 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-10-23 0:00 Ammo-zilla Stanley R. Allen
1999-10-24 0:00 ` Ammo-zilla Aidan Skinner
1999-10-24 0:00 ` Ammo-zilla Robert Dewar
1999-10-24 0:00 ` Ammo-zilla Matthew Heaney
1999-10-24 0:00 ` Ammo-zilla Aidan Skinner
1999-10-25 0:00 ` Ammo-zilla Jean-Pierre Rosen
1999-10-24 0:00 ` Ammo-zilla David Botton
1999-10-28 0:00 ` Ammo-zilla Charles Hixson
1999-10-28 0:00 ` Ammo-zilla Matthew Heaney
1999-10-28 0:00 ` Ammo-zilla mitch
1999-10-29 0:00 ` Ammo-zilla Matthew Heaney
1999-10-28 0:00 ` Ammo-zilla Tucker Taft
1999-10-31 0:00 ` Ammo-zilla Brian Rogoff
1999-11-01 0:00 ` Ammo-zilla Robert Dewar
1999-11-01 0:00 ` Ammo-zilla Brian Rogoff
1999-11-02 0:00 ` Ammo-zilla Robert Dewar
1999-11-02 0:00 ` Ammo-zilla Brian Rogoff
1999-11-02 0:00 ` Ammo-zilla Robert A Duff
1999-10-28 0:00 ` Ammo-zilla Laurent Guerby
1999-10-28 0:00 ` Ammo-zilla David Starner
1999-10-29 0:00 ` Ammo-zilla Larry Kilgallen
1999-10-29 0:00 ` Ammo-zilla David Starner
1999-10-29 0:00 ` Ammo-zilla David Botton
1999-10-29 0:00 ` Ammo-zilla mike
1999-10-29 0:00 ` Ammo-zilla David Botton
1999-10-31 0:00 ` Ammo-zilla Robert Dewar
1999-11-02 0:00 ` Ammo-zilla Charles Hixson
1999-11-03 0:00 ` Ammo-zilla Wes Groleau
1999-11-01 0:00 ` Ammo-zilla Geoff Bull
1999-10-29 0:00 ` Ammo-zilla Matthew Heaney
1999-10-29 0:00 ` Ammo-zilla Charles Hixson
1999-10-29 0:00 ` Ammo-zilla Tucker Taft
1999-10-30 0:00 ` Ammo-zilla Lutz Donnerhacke
1999-10-31 0:00 ` Ammo-zilla Robert Dewar
1999-10-31 0:00 ` Garbage colletion Lutz Donnerhacke
1999-11-01 0:00 ` Robert Dewar
1999-11-01 0:00 ` Lutz Donnerhacke
1999-11-01 0:00 ` Larry Kilgallen
1999-11-01 0:00 ` Robert Dewar
1999-11-01 0:00 ` Lutz Donnerhacke
1999-11-01 0:00 ` Robert Dewar
1999-11-04 0:00 ` Didier Utheza
1999-11-04 0:00 ` David Starner
1999-11-01 0:00 ` Gnat IDE (was: Garbage colletion) Ted Dennison
1999-10-31 0:00 ` Robert Dewar [this message]
1999-10-31 0:00 ` Ammo-zilla David Starner
1999-11-01 0:00 ` Ammo-zilla Robert Dewar
1999-11-01 0:00 ` Ammo-zilla Robert Dewar
1999-11-01 0:00 ` Ada and GC. Was: Ammo-zilla Vladimir Olensky
1999-11-01 0:00 ` Vladimir Olensky
1999-11-01 0:00 ` Tucker Taft
1999-11-02 0:00 ` Robert Dewar
1999-11-02 0:00 ` Charles Hixson
1999-11-03 0:00 ` Robert Dewar
1999-11-03 0:00 ` Charles Hixson
1999-11-02 0:00 ` Vladimir Olensky
1999-11-01 0:00 ` Ammo-zilla Robert A Duff
1999-11-01 0:00 ` Ammo-zilla Robert Dewar
1999-11-02 0:00 ` Ammo-zilla Robert A Duff
1999-11-02 0:00 ` Ammo-zilla Robert Dewar
1999-11-03 0:00 ` Ammo-zilla Vladimir Olensky
1999-11-03 0:00 ` Ammo-zilla Robert Dewar
1999-11-04 0:00 ` Ada GC (was Re: Ammo-zilla) Vladimir Olensky
1999-11-06 0:00 ` Robert Dewar
1999-11-06 0:00 ` Vladimir Olensky
1999-11-06 0:00 ` Robert Dewar
1999-11-06 0:00 ` Vladimir Olensky
1999-11-09 0:00 ` Robert A Duff
1999-11-10 0:00 ` Vladimir Olensky
1999-11-10 0:00 ` Richard D Riehle
1999-11-10 0:00 ` Robert A Duff
1999-11-10 0:00 ` Nick Roberts
1999-11-12 0:00 ` Robert Dewar
1999-11-12 0:00 ` Robert I. Eachus
1999-11-12 0:00 ` Didier Utheza
1999-11-12 0:00 ` Robert I. Eachus
1999-11-04 0:00 ` Ada GC (was Ammo-zilla) Nick Roberts
1999-11-04 0:00 ` Wes Groleau
1999-11-01 0:00 ` Ammo-zilla Vladimir Olensky
1999-10-30 0:00 ` Ammo-zilla Lutz Donnerhacke
1999-10-30 0:00 ` Ammo-zilla Matthew Heaney
1999-10-31 0:00 ` Ammo-zilla Robert Dewar
1999-10-28 0:00 ` Ammo-zilla Charles Hixson
1999-10-29 0:00 ` Ada and GC (Was Re: Ammo-zilla) Vladimir Olensky
1999-10-29 0:00 ` David Botton
1999-10-31 0:00 ` Vladimir Olensky
1999-10-30 0:00 ` Samuel T. Harris
1999-10-30 0:00 ` David Botton
1999-10-29 0:00 ` Ammo-zilla Robert I. Eachus
1999-10-31 0:00 ` Ammo-zilla Robert Dewar
1999-10-24 0:00 ` Ammo-zilla Robert Dewar
1999-10-24 0:00 ` Ammo-zilla David Botton
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