From: moi <findlaybill@blueyonder.co.uk>
Subject: Re: Map iteration and modification
Date: Wed, 3 Jan 2024 04:05:59 +0000 [thread overview]
Message-ID: <kvk4p7Ffv1bU1@mid.individual.net> (raw)
In-Reply-To: <un2jrc$3324e$1@dont-email.me>
On 03/01/2024 03:22, Randy Brukardt wrote:
> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
> news:umv8rg$2b4on$1@dont-email.me...
> ...
>> It is same benefit Ada arrays have over C's T* pointers and arithmetic of.
>> Cursor is merely a fat pointer.
>
> A cursor is an abstract reference. It *might* be implemented with a pointer
> or with an array index. Indeed, the bounded containers pretty much have to
> be implemented with an underlying array.
>
> It would be nice if there was some terminology for abstract references that
> hadn't been stolen by some programming language. Terms like "pointer" and
> "access" and "reference" all imply an implementation strategy. That's not
> relevant most of the time, and many programming language design mistakes
> follow from that. (Anonymous access types come to mind).
What about "currency", as used in DB systems?
--
Bill F.
next prev parent reply other threads:[~2024-01-03 4:05 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-28 13:53 Map iteration and modification DrPi
2023-12-28 13:59 ` DrPi
2023-12-28 16:06 ` Dmitry A. Kazakov
2023-12-28 17:57 ` DrPi
2023-12-29 3:20 ` Randy Brukardt
2023-12-29 9:51 ` Dmitry A. Kazakov
2023-12-29 15:03 ` G.B.
2023-12-29 16:52 ` Dmitry A. Kazakov
2024-01-01 19:27 ` G.B.
2024-01-01 20:55 ` Dmitry A. Kazakov
2024-01-02 16:40 ` G.B.
2024-01-02 20:57 ` Dmitry A. Kazakov
2024-01-03 3:22 ` Randy Brukardt
2024-01-03 4:05 ` moi [this message]
2023-12-30 7:21 ` Randy Brukardt
2023-12-30 11:07 ` Dmitry A. Kazakov
2024-01-03 3:15 ` Randy Brukardt
2024-01-03 10:04 ` Dmitry A. Kazakov
2024-01-04 4:07 ` Randy Brukardt
2024-01-04 11:28 ` Dmitry A. Kazakov
2024-01-05 2:00 ` Randy Brukardt
2024-01-05 9:26 ` Simon Wright
2024-01-05 11:51 ` Dmitry A. Kazakov
2024-01-06 7:25 ` Randy Brukardt
2024-01-07 15:06 ` Jeffrey R.Carter
2024-01-09 4:46 ` Randy Brukardt
2024-01-09 5:56 ` when-clauses (was Re: Map iteration and modification) Lawrence D'Oliveiro
2024-01-09 9:43 ` Map iteration and modification Jeffrey R.Carter
2024-04-17 10:12 ` Cóilín Nioclás Pól Glostéir
2024-01-06 2:54 ` “Usability” (was Re: Map iteration and modification) Lawrence D'Oliveiro
2024-01-06 7:03 ` "Usability" " Randy Brukardt
2024-01-06 8:14 ` Niklas Holsti
2024-01-06 23:41 ` Lawrence D'Oliveiro
2024-01-07 1:21 ` J-P. Rosen
2024-01-09 15:19 ` Bill Findlay
2024-01-09 20:30 ` Lawrence D'Oliveiro
2023-12-29 3:08 ` Map iteration and modification Randy Brukardt
2023-12-29 13:53 ` DrPi
2023-12-30 6:29 ` Randy Brukardt
2023-12-31 13:56 ` DrPi
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