From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Latest suggestion for 202x
Date: Mon, 17 Jun 2019 17:20:33 +0200
Date: 2019-06-17T17:20:33+02:00 [thread overview]
Message-ID: <qe8b41$pji$1@gioia.aioe.org> (raw)
In-Reply-To: 39e749cd-de5c-44fa-b8ec-50d36f3bd52c@googlegroups.com
On 2019-06-17 15:35, Maciej Sobczak wrote:
>> Conceptually, an array indexing operation *is* a function call.
>
> There are two basic aggregate data structures in software engineering: arrays and records. Both have elements, which have to be selected from the whole object. In both cases the selection operation is a mapping - hence, a function.
No, record is not a mapping. A mapping (properly typed) is
f : I -> V
where I and V are *types*. You cannot define record members this way.
Member names are not 1st class values, member values have different types.
> Yet, it's convenient to claim that Ada is consistent and readable, because it has round brackets for array indexing?
Right, A(I,J) is far more readable than A[I][J].
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2019-06-17 15:20 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-15 23:59 Latest suggestion for 202x Micah Waddoups
2019-06-16 5:14 ` Jerry
2019-06-16 7:17 ` Dmitry A. Kazakov
2019-06-16 10:22 ` Egil H H
2019-06-16 16:54 ` Maciej Sobczak
2019-06-16 20:09 ` Dmitry A. Kazakov
2019-06-17 6:54 ` Egil H H
2019-06-17 7:42 ` J-P. Rosen
2019-06-17 12:01 ` Mart van de Wege
2019-06-17 13:35 ` Maciej Sobczak
2019-06-17 15:20 ` Dmitry A. Kazakov [this message]
2019-06-17 15:32 ` Paul Rubin
2019-06-17 16:43 ` Dmitry A. Kazakov
2019-06-17 21:38 ` Keith Thompson
2019-06-18 15:48 ` Jeffrey R. Carter
2019-06-20 22:21 ` Randy Brukardt
2019-06-21 9:42 ` Dmitry A. Kazakov
2019-06-21 18:12 ` Keith Thompson
2019-06-21 18:43 ` Dmitry A. Kazakov
2019-06-21 20:24 ` Keith Thompson
2019-06-22 6:54 ` Dmitry A. Kazakov
2019-06-22 8:43 ` Randy Brukardt
2019-06-22 9:00 ` Dmitry A. Kazakov
2019-06-22 17:44 ` Keith Thompson
2019-06-22 18:34 ` Bill Findlay
2019-06-22 18:37 ` Dmitry A. Kazakov
2019-06-23 7:38 ` G.B.
2019-06-23 8:29 ` Dmitry A. Kazakov
2019-06-23 18:34 ` Optikos
2019-06-23 19:20 ` Dennis Lee Bieber
2019-06-22 20:48 ` Optikos
2019-06-22 20:53 ` Optikos
2019-06-23 17:42 ` Dennis Lee Bieber
2019-06-24 5:07 ` J-P. Rosen
2019-06-24 5:40 ` Paul Rubin
2019-06-24 7:16 ` Niklas Holsti
2019-06-26 18:00 ` Stephen Leake
2019-06-24 13:07 ` J-P. Rosen
2019-06-24 11:12 ` Stefan.Lucks
2019-06-24 12:06 ` Niklas Holsti
2019-06-24 20:22 ` Randy Brukardt
2019-06-24 20:32 ` Keith Thompson
2019-06-24 20:47 ` Jeffrey R. Carter
2019-06-24 13:10 ` J-P. Rosen
2019-06-22 8:36 ` Randy Brukardt
2019-06-22 17:39 ` Keith Thompson
2019-06-16 19:34 ` Optikos
2019-06-16 20:10 ` John Perry
2019-06-16 20:57 ` Optikos
2019-06-16 21:36 ` Dmitry A. Kazakov
2019-06-17 16:48 ` G. B.
2019-06-17 17:12 ` Paul Rubin
2019-06-16 21:41 ` Lucretia
2019-06-19 2:36 ` Micah Waddoups
2019-06-19 11:14 ` Lucretia
2019-06-19 11:45 ` briot.emmanuel
2019-06-19 14:34 ` Optikos
2019-06-19 19:29 ` Lucretia
2019-06-19 16:12 ` G. B.
2019-06-23 20:17 ` Per Sandberg
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