From: Dwaddle <rmborchers@gmail.com>
To: info-gnus-english@gnu.org
Subject: Strange results
Date: Fri, 6 Sep 2013 23:54:12 -0700 (PDT) [thread overview]
Message-ID: <73ac625b-72a4-4719-9ca4-e4d5da9e8c0a@googlegroups.com> (raw)
Hi
i've been dabbling around in elisp for a while. Made this function
The issue is the byte var which 'remembers' the result from a previous calculation.
(integer-bin 5) [0 0 0 0 0 1 0 1]
(integer-bin 3) [0 0 0 0 0 1 1 1]
To beat the critics I know it isn't very clean programmed and a loop would make it al lot shorter
<code>
(defun integer-bin (dec)
"Convert integer to binairy"
(setq 8bit [128 64 32 16 8 4 2 1])
(setq byte [0 0 0 0 0 0 0 0])
(if (= 1 (/ dec (aref 8bit 0))) (when
(aset byte 0 1)
(setq dec (- dec 128))))
(if (< 0 dec)
(if (= 1 (/ dec (aref 8bit 1))) (when
(aset byte 1 1)
(setq dec (- dec 64)))))
(if (< 0 dec)
(if (= 1 (/ dec (aref 8bit 2))) (when
(aset byte 2 1)
(setq dec (- dec 32)))))
(if (< 0 dec)
(if (= 1 (/ dec (aref 8bit 3))) (when
(aset byte 3 1)
(setq dec (- dec 16)))))
(if (< 0 dec)
(if (= 1 (/ dec (aref 8bit 4))) (when
(aset byte 4 1)
(setq dec (- dec 8)))))
(if (< 0 dec)
(if (= 1 (/ d<ec (aref 8bit 5))) (when
(aset byte 5 1)
(setq dec (- dec 4)))))
(if (< 0 dec)
(if (= 1 (/ dec (aref 8bit 6))) (when
(aset byte 6 1)
(setq dec (- dec 2)))))
(if (< 0 dec)
(if (= 1 1) (when (aset byte 7 1)
(setq dec (- dec 1)))))
(print byte)
)
</code>
next reply other threads:[~2013-09-07 6:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-07 6:54 Dwaddle [this message]
2013-09-07 12:32 ` Pascal J. Bourguignon
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=73ac625b-72a4-4719-9ca4-e4d5da9e8c0a@googlegroups.com \
--to=rmborchers@gmail.com \
--cc=info-gnus-english@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 NNTP newsgroup(s).