From: Panicz Maciej Godek <godek.maciek@gmail.com>
To: guile-user@gnu.org
Subject: Reader syntax for accessing arrays
Date: Tue, 23 Aug 2011 01:17:38 +0200 [thread overview]
Message-ID: <CAMFYt2ZqK7ax7uU3os0c+Oe_gGFY0aiPsHoVdCc_Zu2Xe41GeQ@mail.gmail.com> (raw)
Hi,
I've noticed that one of the biggest inconveniences of lisp is a very
clumsy way of accessing arrays.
Having to write
(array-set! a (* (array-ref a i j) 2) i j))
seems to be unnecessarily prolix, for in C, language designed
specifically to access arrays,
the same operation could be written as
a[i][j] *= 2;
Indeed, LISP is intended for processing lists, but there are certain
tasks where dealing with
arrays is inevitable. So perhaps it would be a good idea to use square
brackets, as it is
done in C, to access arrays, so that
[a i j]
could be understood by the interpreter as
(ref-array a i j)
where ref-array is the appropriate getter with setter.
Therefore I wonder how could this functionality be implemented in
guile, or, preferably,
in generic R^5RS. [I've heard that R^6RS makes no distinction between [] and ()]
Regards
Maciek
next reply other threads:[~2011-08-22 23:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-22 23:17 Panicz Maciej Godek [this message]
2011-08-23 8:10 ` Reader syntax for accessing arrays Johan Hidding
2011-08-23 18:03 ` Panicz Maciej Godek
2011-08-24 10:51 ` Ludovic Courtès
2011-08-24 18:45 ` Panicz Maciej Godek
2011-08-24 19:52 ` Johan Hidding
2011-08-26 21:02 ` Panicz Maciej Godek
2012-01-09 15:39 ` Andy Wingo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/guile/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAMFYt2ZqK7ax7uU3os0c+Oe_gGFY0aiPsHoVdCc_Zu2Xe41GeQ@mail.gmail.com \
--to=godek.maciek@gmail.com \
--cc=guile-user@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).