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From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: New aggregates with Ada 2022.
Date: Wed, 22 Jun 2022 20:06:53 -0500	[thread overview]
Message-ID: <t90ebe$nve$1@dont-email.me> (raw)
In-Reply-To: t8ulu9$jca$1@gioia.aioe.org

"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:t8ulu9$jca$1@gioia.aioe.org...
> On 2022-06-22 01:28, Randy Brukardt wrote:
...
> Well, I can give a useful example straight away. A string has two array 
> interfaces, the encoding and the character view. The former must be a 
> built-in array.

The interface for a string should be quite different from that for an array, 
they're not related at all. One might implement a string with a record type 
that has an array component, but never as a bare array. (That leads to 
nonsense, which Ada sadly has proven clearly.

Indeed, if you consider everything to have an interface, arrays themselves 
cease to be a fundemental part of a language design and just become another 
interface. (How something gets implemented should not be part of a language 
design, so long as the design does not prevent an efficient implementation.) 
I certainly would not treat them as special in any way, just a series of 
function calls. (Possibly records could be treated that way as well, 
although it is less clear that an efficient implementation is possible for 
them.)

                         Randy.


                                  Randy.


  reply	other threads:[~2022-06-23  1:06 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-19  7:59 New aggregates with Ada 2022 Blady
2022-06-19 14:15 ` Simon Wright
2022-06-20 19:36   ` Blady
2022-06-20 22:01     ` Simon Wright
2022-06-20 21:47 ` Randy Brukardt
2022-06-20 22:18   ` Dmitry A. Kazakov
2022-06-21 23:28     ` Randy Brukardt
2022-06-22  9:04       ` Dmitry A. Kazakov
2022-06-23  1:06         ` Randy Brukardt [this message]
2022-06-23  9:32           ` Dmitry A. Kazakov
2022-06-23 10:53             ` G.B.
2022-06-24  1:21               ` Randy Brukardt
2022-06-24  1:24             ` Randy Brukardt
2022-06-24  6:50               ` Dmitry A. Kazakov
2022-06-25  3:13                 ` Randy Brukardt
2022-06-25  8:50                   ` Dmitry A. Kazakov
2022-06-27 21:37                     ` Randy Brukardt
2022-06-28  5:36                       ` Niklas Holsti
2022-06-29  4:01                         ` Randy Brukardt
2022-06-29  8:30                           ` Jeffrey R.Carter
2022-06-29  9:04                             ` Dmitry A. Kazakov
2022-06-30  5:03                               ` Randy Brukardt
2022-06-30  8:44                                 ` Dmitry A. Kazakov
2022-06-29 11:06                             ` Niklas Holsti
2022-06-29 12:53                               ` Jeffrey R.Carter
2022-06-30  5:07                                 ` Randy Brukardt
2022-06-30  5:14                               ` Randy Brukardt
2022-06-30  8:31                                 ` Marius Amado-Alves
2022-07-01  5:20                                   ` Randy Brukardt
2022-06-30 10:30                                 ` Jeffrey R.Carter
2022-06-30 15:48                                   ` Marius Amado-Alves
2022-06-30 16:39                                     ` Jeffrey R.Carter
2022-07-01  0:07                                       ` Marius Amado-Alves
2022-06-28  7:52                       ` Dmitry A. Kazakov
2022-06-29  4:07                         ` Randy Brukardt
2022-06-29  7:24                           ` Dmitry A. Kazakov
2022-06-30  5:00                             ` Randy Brukardt
2022-06-21 23:39     ` Randy Brukardt
2022-06-22  8:26       ` Dmitry A. Kazakov
2022-06-23  1:10         ` Randy Brukardt
2022-06-23  9:32           ` Dmitry A. Kazakov
2022-06-20 22:10 ` Jesper Quorning
2022-06-20 22:59   ` Jesper Quorning
2022-06-21 23:20     ` Randy Brukardt
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