From: Dale Stanbrough <MrNoSpam@bigpoop.net.au>
Subject: Re: Ada Popularity: Comparison of Ada/Charles with C++ STL (and Perl)
Date: Wed, 29 Sep 2004 06:03:12 GMT
Date: 2004-09-29T06:03:12+00:00 [thread overview]
Message-ID: <MrNoSpam-BAC732.16031229092004@news-server.bigpond.net.au> (raw)
In-Reply-To: e749549b.0409281904.f4c4e6e@posting.google.com
Kevin Cline wrote:
> 2. AFAIK, Ada does not support pointer-to-record member so it would
> have been necessary to somehow wrap each record member with a
> function.
You can take the address of a field in a record. I'm not sure what it
means if you have a representation clause for the record though.
If you do Gnat says...
gcc -c fred.adb
fred.adb:19:10: warning: taking address of object not aligned on storage
unit
so at least one compiler tells you there is danger. Presumably once you
have the address, the pointer knows nothing about the special alignment
of the object.
What happens in the C world in similar circumstances?
Dale
The following compile with gnat v3.3...
with system; use system;
procedure Fred is
type R is record
a : integer;
b : character;
end record;
A : System.Address;
rec : R;
begin
A := rec.a'address;
end;
with system; use system;
procedure Fred is
type R is record
a : integer;
b : boolean;
end record;
for R use
record
A at 0 range 0..31;
b at 4 range 3..3;
end record;
A : System.Address;
rec : R;
begin
A := rec.b'address;
end;
--
dstanbro@spam.o.matic.bigpond.net.au
next prev parent reply other threads:[~2004-09-29 6:03 UTC|newest]
Thread overview: 229+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-22 0:21 Ada Popularity: Comparison of Ada/Charles with C++ STL (and Perl) Kevin Cline
2004-09-22 2:16 ` Pylinius
2004-09-22 8:50 ` Björn Persson
2004-09-22 13:38 ` Benjamin Ketcham
2004-09-22 14:07 ` Hyman Rosen
2004-09-22 15:16 ` Cesar Rabak
2004-09-23 8:22 ` Kevin Cline
2004-09-23 10:52 ` Anders Wirzenius
2004-09-23 10:54 ` stephane richard
2004-09-23 11:17 ` Jean-Pierre Rosen
2004-09-23 11:47 ` Marius Amado Alves
2004-09-23 13:34 ` Anders Wirzenius
2004-09-23 16:53 ` Warren W. Gay VE3WWG
2004-09-23 18:30 ` Kevin Cline
2004-09-23 19:00 ` Marius Amado Alves
2004-09-24 6:04 ` [OT]Screen ergonomics, was " Anders Wirzenius
2004-09-26 7:22 ` Kevin Cline
2004-09-23 17:19 ` Cesar Rabak
2004-09-23 8:51 ` Kevin Cline
2004-09-23 11:01 ` Georg Bauhaus
2004-09-23 15:59 ` Matthew Heaney
2004-09-23 16:38 ` Kevin Cline
2004-09-24 2:47 ` Matthew Heaney
2004-09-24 13:43 ` Hyman Rosen
2004-09-24 17:47 ` Mark Lorenzen
2004-09-24 18:16 ` Matthew Heaney
2004-09-29 19:29 ` Mark Lorenzen
2004-09-29 22:44 ` Matthew Heaney
2004-09-25 14:09 ` Martin Krischik
2004-09-26 7:08 ` Kevin Cline
2004-09-26 15:13 ` Matthew Heaney
2004-09-23 19:10 ` jayessay
2004-09-23 21:13 ` Adam Ruth
2004-09-27 2:12 ` Keith H Duggar
2004-09-27 14:21 ` Adam Ruth
2004-09-27 14:51 ` Chris Humphries
2004-09-27 17:10 ` Adam Ruth
2004-09-27 20:16 ` Keith H Duggar
2004-09-27 21:15 ` Chris Humphries
2004-09-28 4:46 ` Keith H Duggar
2004-09-27 20:34 ` Kevin Cline
2004-09-27 21:15 ` Adam Ruth
2004-09-23 23:05 ` Brian May
2004-09-24 3:06 ` Matthew Heaney
2004-09-24 3:52 ` Randy Brukardt
2004-09-24 5:15 ` Matthew Heaney
2004-09-24 19:12 ` Kevin Cline
2004-09-24 20:54 ` Randy Brukardt
2004-09-24 21:23 ` Matthew Heaney
2004-09-27 13:22 ` Chris Humphries
2004-09-27 13:45 ` Chris Humphries
2004-09-27 21:31 ` Kevin Cline
2004-09-27 23:51 ` Brian May
2004-09-28 12:21 ` Chris Humphries
2004-09-26 17:10 ` jayessay
2004-09-26 20:00 ` Georg Bauhaus
2004-09-27 14:45 ` jayessay
2004-09-24 0:19 ` Stephen Leake
2004-09-24 14:54 ` Cesar Rabak
2004-09-22 15:27 ` James Alan Farrell
2004-09-22 21:24 ` Simon Wright
2004-09-23 0:03 ` Brian May
2004-09-23 9:17 ` Kevin Cline
2004-09-23 0:44 ` Jeffrey Carter
2004-09-23 11:08 ` Georg Bauhaus
2004-09-23 8:15 ` Martin Krischik
2004-09-23 16:20 ` Matthew Heaney
2004-09-23 19:23 ` Simon Wright
2004-09-24 7:19 ` Martin Krischik
2004-09-24 16:31 ` Matthew Heaney
2004-09-24 19:24 ` Kevin Cline
2004-09-25 14:04 ` Martin Krischik
2004-09-26 10:36 ` Robert Kawulak
2004-09-26 15:35 ` Martin Krischik
2004-09-28 17:46 ` Robert Kawulak
2004-09-29 7:49 ` Martin Krischik
2004-09-29 12:01 ` Xenos
2004-09-29 18:16 ` Robert Kawulak
2004-09-30 15:55 ` Martin Krischik
2004-09-27 22:22 ` Kevin Cline
2004-09-28 7:51 ` Martin Krischik
2004-09-29 3:04 ` Kevin Cline
2004-09-29 6:03 ` Dale Stanbrough [this message]
2004-09-29 13:31 ` Georg Bauhaus
2004-09-29 13:46 ` Matthew Heaney
2004-09-30 3:42 ` Kevin Cline
2004-09-30 7:54 ` Dale Stanbrough
2004-09-30 16:50 ` Matthew Heaney
2004-10-01 0:04 ` Kevin Cline
2004-10-01 12:25 ` Georg Bauhaus
2004-10-02 7:35 ` K
2004-10-02 10:00 ` Brian May
2004-10-02 20:39 ` Kevin Cline
2004-10-03 2:17 ` Brian May
2004-10-02 13:40 ` Matthew Heaney
2004-10-02 23:33 ` Randy Brukardt
2004-10-03 12:47 ` Stephen Leake
2004-09-30 19:01 ` Björn Persson
2004-09-30 23:54 ` Kevin Cline
2004-10-01 16:11 ` Björn Persson
2004-10-02 6:48 ` K
2004-10-02 10:41 ` Björn Persson
2004-10-02 13:32 ` Matthew Heaney
2004-10-04 9:02 ` Ole-Hjalmar Kristensen
2004-09-23 9:00 ` Kevin Cline
2004-09-23 11:27 ` Ole-Hjalmar Kristensen
2004-09-23 19:11 ` Kevin Cline
2004-09-23 21:01 ` Alexander E. Kopilovich
2004-09-26 6:53 ` Kevin Cline
2004-09-26 15:29 ` Alexander E. Kopilovich
2004-09-23 21:54 ` Eric Jacoboni
2004-09-24 9:44 ` Ole-Hjalmar Kristensen
2004-09-24 9:50 ` Georg Bauhaus
2004-09-24 13:47 ` Matthew Heaney
2004-09-24 14:14 ` Dmitry A. Kazakov
2004-09-25 14:17 ` Martin Krischik
2004-09-27 8:12 ` Dmitry A. Kazakov
2004-09-27 12:59 ` Georg Bauhaus
2004-09-27 13:53 ` Dmitry A. Kazakov
2004-09-26 7:17 ` Kevin Cline
2004-09-27 8:19 ` Dmitry A. Kazakov
2004-09-27 13:03 ` Georg Bauhaus
2004-09-27 14:00 ` Dmitry A. Kazakov
2004-09-24 16:28 ` Kevin Cline
2004-09-24 17:45 ` Georg Bauhaus
2004-09-24 20:14 ` Matthew Heaney
2004-09-24 20:10 ` Frank J. Lhota
2004-09-27 8:29 ` Dmitry A. Kazakov
2004-09-26 7:13 ` Kevin Cline
2004-09-26 15:15 ` Matthew Heaney
2004-09-27 14:31 ` Kevin Cline
2004-09-27 15:05 ` Dmitry A. Kazakov
2004-09-28 4:22 ` Kevin Cline
2004-09-28 8:20 ` Dmitry A. Kazakov
2004-09-28 23:26 ` Robert Kawulak
2004-09-29 12:19 ` Dmitry A. Kazakov
2004-09-30 18:52 ` Robert Kawulak
2004-10-01 7:55 ` Dmitry A. Kazakov
2004-10-03 19:35 ` Robert Kawulak
2004-10-04 10:24 ` Dmitry A. Kazakov
2004-10-06 17:28 ` Robert Kawulak
2004-10-07 8:24 ` Dmitry A. Kazakov
2004-10-10 21:09 ` Robert Kawulak
2004-10-11 8:08 ` Dmitry A. Kazakov
2004-10-15 9:34 ` Robert Kawulak
2004-10-15 16:58 ` Martin Krischik
2004-09-29 15:44 ` Matthew Heaney
2004-09-30 18:27 ` Robert Kawulak
2004-09-28 17:21 ` Robert Kawulak
2004-09-29 1:38 ` Georg Bauhaus
2004-09-29 18:08 ` Robert Kawulak
2004-09-30 18:30 ` Georg Bauhaus
2004-09-29 8:08 ` Dmitry A. Kazakov
2004-09-29 18:11 ` Robert Kawulak
2004-09-30 8:57 ` Dmitry A. Kazakov
[not found] ` <cji06f$17a$2@atlantis.news.tpi.pl>
2004-10-01 8:58 ` Dmitry A. Kazakov
2004-10-03 19:53 ` Robert Kawulak
2004-10-04 10:15 ` Dmitry A. Kazakov
2004-10-04 12:16 ` Matthew Heaney
2004-10-04 13:21 ` Dmitry A. Kazakov
2004-10-06 17:20 ` Robert Kawulak
2004-10-07 10:08 ` Dmitry A. Kazakov
2004-10-10 22:21 ` Robert Kawulak
2004-10-11 8:46 ` Dmitry A. Kazakov
2004-10-15 9:25 ` Robert Kawulak
2004-10-15 11:56 ` Dmitry A. Kazakov
2004-10-20 20:06 ` Robert Kawulak
2004-10-21 2:51 ` Kevin Cline
2004-10-21 8:39 ` Dmitry A. Kazakov
2004-10-27 21:41 ` Robert Kawulak
2004-10-01 13:02 ` Robert Kawulak
2004-10-28 10:26 ` Larry Kilgallen
2004-09-27 16:21 ` Matthew Heaney
2004-09-28 2:47 ` Kevin Cline
2004-09-28 4:03 ` Brian May
2004-09-28 4:46 ` Matthew Heaney
2004-09-29 3:14 ` Kevin Cline
2004-09-29 3:50 ` Matthew Heaney
2004-09-29 3:52 ` Matthew Heaney
2004-09-29 13:44 ` Matthew Heaney
2004-09-26 6:32 ` Kevin Cline
2004-09-26 15:05 ` Matthew Heaney
2004-09-27 14:35 ` Kevin Cline
2004-09-23 19:30 ` jayessay
2004-09-23 19:42 ` Alexander E. Kopilovich
2004-09-22 21:05 ` Georg Bauhaus
2004-09-23 9:20 ` Kevin Cline
2004-09-23 16:58 ` Warren W. Gay VE3WWG
2004-09-23 6:24 ` Matthew Heaney
2004-09-23 11:23 ` Jeff C r e e.m
2004-09-23 11:35 ` Georg Bauhaus
2004-09-23 17:05 ` Pascal Obry
2004-09-23 17:07 ` Pascal Obry
2004-09-23 18:30 ` Matthew Heaney
2004-09-23 19:31 ` Simon Wright
2004-09-24 0:09 ` Stephen Leake
2004-09-25 10:41 ` Simon Wright
2004-09-23 18:24 ` Kevin Cline
2004-09-23 17:12 ` Dan Andreatta
2004-09-23 18:10 ` Pascal Obry
2004-09-23 19:21 ` Eric Jacoboni
2004-09-23 19:31 ` Ed Falis
2004-09-23 19:37 ` Eric Jacoboni
2004-09-24 20:09 ` Kevin Cline
2004-09-25 0:18 ` Eric Jacoboni
2004-09-26 6:37 ` Kevin Cline
2004-09-26 14:57 ` Matthew Heaney
2004-09-23 19:24 ` Eric Jacoboni
2004-09-23 21:30 ` Eric Jacoboni
2004-09-26 11:44 ` Jacob Sparre Andersen
2004-09-26 17:02 ` jayessay
2004-09-24 8:26 ` Ole-Hjalmar Kristensen
2004-09-23 22:08 ` Anders Gidenstam
2004-09-24 8:10 ` Ole-Hjalmar Kristensen
2004-09-24 17:43 ` Dan Andreatta
2004-09-24 17:40 ` Dan Andreatta
2004-09-24 18:50 ` Pascal Obry
2004-09-23 22:34 ` Randy Brukardt
2004-09-23 23:11 ` Dale Stanbrough
2004-09-24 1:57 ` Matthew Heaney
2004-09-24 6:32 ` Dale Stanbrough
2004-09-24 21:01 ` Randy Brukardt
2004-09-24 0:43 ` Jeffrey Carter
2004-09-24 1:51 ` Matthew Heaney
2004-09-24 20:21 ` Kevin Cline
2004-09-26 11:09 ` Jacob Sparre Andersen
2004-09-27 13:49 ` Björn Persson
2004-10-12 5:21 ` Ada Popularity: Comparison of languages Brian May
2004-10-12 11:43 ` Peter Hermann
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