From: Chong Yidong <cyd@gnu.org>
To: 11019@debbugs.gnu.org
Subject: bug#11019: 24.0.94; ring-insert+extend does not grow ring properly
Date: Thu, 15 Mar 2012 14:31:42 +0800 [thread overview]
Message-ID: <87sjha1ik1.fsf@gnu.org> (raw)
Looks like ring-insert+extend with a non-nil GROW-P argument does not
grow the ring properly if the ring is already "wrapped around":
(require 'ring)
(setq ring (make-ring 4))
(ring-insert ring 0)
(ring-insert ring 1)
(ring-insert ring 2)
(ring-insert ring 3)
(ring-insert ring 4)
(setq foo (ring-elements ring))
;; ==> (4 3 2 1)
(ring-insert+extend ring 5 t)
(setq bar (ring-elements ring))
;; ==> (1 4 5 3 2)
;; expected: (5 4 3 2 1)
I will write up a fix for this soon.
next reply other threads:[~2012-03-15 6:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-15 6:31 Chong Yidong [this message]
2012-03-15 8:13 ` bug#11019: 24.0.94; ring-insert+extend does not grow ring properly Chong Yidong
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