From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Community Input for the Maintenance and Revision of the Ada Programming Language
Date: Tue, 12 Sep 2017 18:58:53 +0200
Date: 2017-09-12T18:58:53+02:00 [thread overview]
Message-ID: <op93oe$ofq$1@gioia.aioe.org> (raw)
In-Reply-To: 800285a3-22de-4b22-a0bf-afc53bc1c1c6@googlegroups.com
On 2017-09-12 18:30, Shark8 wrote:
> On Tuesday, September 12, 2017 at 4:07:27 AM UTC-6, Dmitry A. Kazakov wrote:
>>
>> No DB bindings I know deploy bounded-length strings.
>
> Isn't that a failing of those bindings? (Just like we could have a
> thin C-binding which used return codes.)
If you mean the side turned towards the DB, it is a requirement, since
the counterpart is a char * or void *.
If you mean the Ada interface's side, it is convenience. Bounded_Strings
are difficult to use, while the advantage is zero. If the DB has a field
constraint that is dynamic on the Ada side. There is no way you could
push that constraint into the instance of Ada.Strings.Bounded.
Since copying is involved anyway, there is no reason not to have
Fetch (Column)
just returning String of the actual length. Simple and clean.
If we wanted in-place semantics, a stream is the answer. Fetch would
supply chunks of data which are accumulated in the stream. There are
lots of protocols working this way, e.g. HTTP's chunked transfer.
The stream can be backed by a String on an embedded system or by a
container of dynamically allocated memory chunks. Anyway, no good reason
to use Ada.Strings.Bounded.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2017-09-12 16:58 UTC|newest]
Thread overview: 228+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-03 5:45 Community Input for the Maintenance and Revision of the Ada Programming Language Randy Brukardt
2017-08-03 12:06 ` Lucretia
2017-08-03 12:52 ` Lucretia
2017-08-09 21:08 ` Luke A. Guest
2017-08-09 21:12 ` Luke A. Guest
2017-08-10 14:43 ` Lucretia
2017-08-10 15:14 ` Dmitry A. Kazakov
2017-08-11 1:27 ` Randy Brukardt
2017-08-11 1:24 ` Randy Brukardt
2017-08-11 5:54 ` G.B.
2017-08-10 5:41 ` G.B.
2017-08-10 14:41 ` Lucretia
2017-08-10 15:25 ` J-P. Rosen
2017-08-10 15:42 ` Luke A. Guest
2017-08-10 15:44 ` Dmitry A. Kazakov
2017-08-11 0:56 ` Randy Brukardt
2017-08-11 1:10 ` Randy Brukardt
2017-08-11 22:43 ` Shark8
2017-08-12 2:40 ` Luke A. Guest
2017-08-11 14:42 ` Justin Sq
2017-08-11 14:48 ` jsquirek
2017-08-11 17:10 ` Luke A. Guest
2017-08-11 17:24 ` Justin Sq
2017-08-11 20:09 ` Dmitry A. Kazakov
2017-08-11 21:13 ` Randy Brukardt
2017-08-18 21:06 ` Robert Eachus
2017-08-31 0:49 ` Randy Brukardt
2017-08-31 7:36 ` Jacob Sparre Andersen
2017-08-31 9:52 ` Dmitry A. Kazakov
2017-08-31 12:49 ` Jacob Sparre Andersen
2017-08-31 13:16 ` Dmitry A. Kazakov
2017-08-31 14:09 ` Jacob Sparre Andersen
2017-08-31 14:41 ` Dmitry A. Kazakov
2017-08-31 15:45 ` Simon Wright
2017-08-31 16:08 ` Dmitry A. Kazakov
2017-08-31 18:51 ` Georg Bauhaus
2017-08-31 23:54 ` Randy Brukardt
2017-09-01 3:51 ` Justin Sq
2017-09-01 7:24 ` Dmitry A. Kazakov
2017-09-01 12:23 ` jsquirek
2017-09-03 1:17 ` Randy Brukardt
2017-08-18 20:33 ` Robert Eachus
2017-08-19 1:24 ` Shark8
2017-08-19 8:55 ` Dmitry A. Kazakov
2017-08-19 16:38 ` Shark8
2017-08-19 17:09 ` Dmitry A. Kazakov
2017-08-22 6:02 ` Robert Eachus
2017-08-22 7:34 ` Dmitry A. Kazakov
2017-08-26 4:41 ` Robert Eachus
2017-08-26 6:29 ` Dmitry A. Kazakov
2017-08-26 7:16 ` Jacob Sparre Andersen
2017-08-26 7:48 ` Dmitry A. Kazakov
2017-08-27 12:03 ` Robert Eachus
2017-08-27 12:35 ` Dmitry A. Kazakov
2017-08-27 14:44 ` Dennis Lee Bieber
2017-08-27 16:32 ` Dmitry A. Kazakov
2017-08-19 8:47 ` Dmitry A. Kazakov
2017-08-10 12:18 ` J-P. Rosen
2017-08-10 12:40 ` Lucretia
2017-08-10 15:17 ` J-P. Rosen
2017-08-11 8:33 ` AdaMagica
2017-08-10 16:28 ` Pascal Obry
2017-08-10 16:52 ` Dmitry A. Kazakov
2017-08-10 17:08 ` Luke A. Guest
2017-08-10 17:25 ` Dmitry A. Kazakov
2017-08-11 1:02 ` Lucretia
2017-08-11 6:08 ` Dmitry A. Kazakov
2017-08-11 20:51 ` Randy Brukardt
2017-08-10 17:06 ` Luke A. Guest
2017-08-11 1:31 ` Randy Brukardt
2017-08-11 6:24 ` G.B.
2017-08-11 7:57 ` Stefan.Lucks
2017-08-11 8:34 ` Dmitry A. Kazakov
2017-08-11 8:53 ` Stefan.Lucks
2017-08-11 9:12 ` Dmitry A. Kazakov
2017-08-11 9:22 ` AdaMagica
2017-08-12 18:29 ` Jacob Sparre Andersen
2017-08-29 16:01 ` Alejandro R. Mosteo
2017-08-09 15:24 ` Johan Söderlind Åström
2017-08-09 17:23 ` Shark8
2017-08-09 18:49 ` Dmitry A. Kazakov
2017-08-31 6:59 ` Jacob Sparre Andersen
2017-08-28 23:49 ` faryumg
2017-08-29 8:17 ` Simon Wright
2017-08-31 13:35 ` Johan Söderlind Åström
2017-09-02 10:49 ` Vincent DIEMUNSCH
2017-09-02 11:04 ` Dmitry A. Kazakov
2017-09-02 11:21 ` Johan Söderlind Åström
2017-09-02 15:22 ` Vincent DIEMUNSCH
2017-09-02 17:19 ` Jeffrey R. Carter
2017-09-04 20:52 ` Johan Söderlind Åström
2017-09-03 1:30 ` Randy Brukardt
2017-09-06 15:02 ` Johan Söderlind Åström
2017-09-06 15:57 ` Jacob Sparre Andersen
2017-09-06 18:56 ` Johan Söderlind Åström
2017-09-06 21:21 ` Randy Brukardt
2017-09-08 21:04 ` Johan Söderlind Åström
2017-09-08 21:46 ` Dmitry A. Kazakov
2017-09-08 23:55 ` Johan Söderlind Åström
2017-09-16 12:49 ` Johan Söderlind Åström
2017-09-16 13:10 ` Dmitry A. Kazakov
2017-09-17 11:05 ` AdaMagica
2017-09-17 12:51 ` Dmitry A. Kazakov
2017-09-08 22:13 ` Jeffrey R. Carter
2017-09-10 21:09 ` Johan Söderlind Åström
[not found] ` <9d4274d7-5ad1-42d0-8ec3-de822e28ec6c@googlegroups.com>
2017-10-02 19:01 ` Randy Brukardt
2017-09-08 23:07 ` Randy Brukardt
2017-09-09 20:35 ` Johan Söderlind Åström
2017-10-02 18:57 ` Randy Brukardt
2017-09-09 14:48 ` G.B.
2017-09-03 1:35 ` Randy Brukardt
2017-09-03 10:32 ` Alejandro R. Mosteo
2017-09-03 12:59 ` Dmitry A. Kazakov
2017-09-05 22:25 ` Randy Brukardt
2017-09-05 22:29 ` Randy Brukardt
2017-09-02 16:49 ` Jeffrey R. Carter
2017-09-03 10:34 ` Alejandro R. Mosteo
2017-09-02 17:08 ` Jeffrey R. Carter
2017-09-06 16:38 ` Vincent DIEMUNSCH
2017-09-06 20:52 ` Egil H H
2017-09-06 21:30 ` Randy Brukardt
2017-09-08 15:49 ` Jeffrey R. Carter
2017-09-03 1:28 ` Randy Brukardt
2017-09-06 6:15 ` Shark8
2017-09-01 14:11 ` Björn Lundin
2017-09-01 14:47 ` J-P. Rosen
2017-09-01 16:02 ` Dmitry A. Kazakov
2017-09-01 17:53 ` Jacob Sparre Andersen
2017-09-01 18:06 ` J-P. Rosen
2017-09-01 19:02 ` Dmitry A. Kazakov
2017-09-03 1:22 ` Randy Brukardt
2017-09-11 18:49 ` Tarjei Jensen
2017-09-11 19:33 ` Dmitry A. Kazakov
2017-09-12 6:18 ` Tarjei Jensen
2017-09-12 6:38 ` gautier_niouzes
2017-09-12 7:02 ` Tarjei Jensen
2017-09-12 7:15 ` Dmitry A. Kazakov
2017-09-12 7:35 ` Simon Wright
2017-09-12 9:23 ` J-P. Rosen
2017-09-12 10:07 ` Dmitry A. Kazakov
2017-09-12 16:30 ` Shark8
2017-09-12 16:58 ` Dmitry A. Kazakov [this message]
2017-09-12 19:30 ` J-P. Rosen
2017-09-12 19:53 ` Dmitry A. Kazakov
2017-09-12 10:44 ` gautier_niouzes
2017-09-12 6:39 ` Egil H H
2017-09-12 7:02 ` Tarjei Jensen
2017-09-12 7:42 ` Egil H H
2017-09-12 8:24 ` Tarjei Jensen
2017-09-12 8:35 ` Dmitry A. Kazakov
2017-09-12 9:21 ` Egil H H
2017-09-12 10:22 ` Dmitry A. Kazakov
2017-09-12 10:48 ` Egil H H
2017-09-12 12:09 ` Dmitry A. Kazakov
2017-09-12 12:56 ` Egil H H
2017-09-12 13:14 ` Dmitry A. Kazakov
2017-09-12 13:25 ` Egil H H
2017-09-12 13:43 ` Dmitry A. Kazakov
2017-09-12 14:07 ` Egil H H
2017-09-12 15:59 ` Dmitry A. Kazakov
2017-09-12 14:36 ` Egil H H
2017-09-12 15:55 ` Dmitry A. Kazakov
2017-09-12 16:15 ` Egil H H
2017-09-12 16:40 ` Dmitry A. Kazakov
2017-09-12 16:47 ` Egil H H
2017-09-12 16:59 ` Dmitry A. Kazakov
2017-09-12 17:03 ` Egil H H
2017-09-12 17:17 ` Dmitry A. Kazakov
2017-09-12 17:29 ` Egil H H
2017-09-12 19:14 ` Dmitry A. Kazakov
2017-09-12 19:58 ` Egil H H
2017-09-13 7:24 ` Dmitry A. Kazakov
2017-09-13 8:13 ` Egil H H
2017-09-13 8:57 ` Dmitry A. Kazakov
2017-09-13 9:00 ` Egil H H
2017-09-12 18:55 ` Simon Wright
2017-09-12 17:43 ` Jeffrey R. Carter
2017-09-13 13:07 ` Alejandro R. Mosteo
2017-09-13 16:34 ` Jeffrey R. Carter
2017-09-13 18:34 ` Egil H H
2017-09-13 19:41 ` Jeffrey R. Carter
2017-09-14 12:30 ` Alejandro R. Mosteo
2017-09-14 13:36 ` J-P. Rosen
2017-09-14 18:08 ` Jeffrey R. Carter
2017-10-02 19:53 ` Randy Brukardt
2017-09-12 14:55 ` Simon Wright
2017-09-12 16:04 ` Dmitry A. Kazakov
2017-10-02 19:51 ` Randy Brukardt
2017-10-03 7:48 ` Simon Wright
2017-10-03 9:34 ` G.B.
2017-10-03 10:11 ` Dmitry A. Kazakov
2017-10-03 13:25 ` G.B.
2017-10-03 13:56 ` Dmitry A. Kazakov
2017-10-03 20:24 ` Randy Brukardt
2017-10-03 20:20 ` Randy Brukardt
2017-10-02 19:45 ` Randy Brukardt
2017-09-12 17:41 ` Jeffrey R. Carter
2017-09-12 21:04 ` G.B.
2017-09-13 7:30 ` Dmitry A. Kazakov
2017-09-13 17:39 ` G.B.
2017-09-13 19:34 ` Dmitry A. Kazakov
2017-09-14 6:57 ` G.B.
2017-09-14 7:33 ` Dmitry A. Kazakov
2017-10-02 10:06 ` reinert
2017-10-02 13:54 ` Jeffrey R. Carter
2017-10-02 14:56 ` reinert
2017-10-02 14:56 ` Dennis Lee Bieber
2017-10-02 15:02 ` G.B.
2017-10-02 16:23 ` reinert
2017-10-02 16:38 ` Dmitry A. Kazakov
2017-10-02 17:19 ` reinert
2017-10-02 17:39 ` Dmitry A. Kazakov
2017-10-02 19:10 ` Jeffrey R. Carter
2017-10-02 19:14 ` Jeffrey R. Carter
2017-10-03 3:30 ` reinert
2017-10-03 6:36 ` G.B.
2017-10-04 19:21 ` reinert
2017-10-04 19:33 ` Dmitry A. Kazakov
2017-10-04 21:45 ` G.B.
2017-10-04 22:04 ` Dmitry A. Kazakov
2017-10-05 6:50 ` G.B.
2017-10-05 7:21 ` Dmitry A. Kazakov
2017-10-04 12:38 ` Daniel Norte Moraes
-- strict thread matches above, loose matches on Subject: below --
2017-08-03 5:53 Randy Brukardt
2017-08-03 9:42 ` Dirk Craeynest
2017-08-03 9:52 ` Dirk Craeynest
2017-08-05 0:10 ` Randy Brukardt
2017-08-03 12:52 laguest9000
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