From: Leo <sdl.web@gmail.com>
To: jay.p.belanger@gmail.com
Cc: emacs-pretest-bug@gnu.org, 3356@emacsbugs.donarmstrong.com
Subject: bug#3356: 23.0.93; Loss of undo info in calc
Date: Sun, 02 Aug 2009 15:21:52 +0100 [thread overview]
Message-ID: <xbaid47ewb27.fsf@cam.ac.uk> (raw)
In-Reply-To: <87my93g6rc.fsf@gmail.com> (Jay Belanger's message of "Sat, 23 May 2009 10:48:23 -0500")
On 2009-05-23 16:48 +0100, Jay Belanger wrote:
> Leo <sdl.web@gmail.com> writes:
> ...
>> 1. M-x calc
>> 2. do some calculation for example: ' sqrt ( x ) RET a t x 5 RET
>> 3. type q to quit calc
>> 4. M-x calc to bring it back
>> 5. type U
>>
>> You will get "No further undo information is available".
>
> calc-quit sets the undo list to nil on purpose, probably to save limited
> memory in the early days. If there are still memory considerations,
> then calc-quit could truncate the undo list rather than remove it,
> otherwise it'd be easy to have calc-quit not do anything with the undo
> list.
>
>> Incidentally, I wonder whether making the two windows dedicated is more
>> desirable than current behaviour.
>
> Maybe, but I wonder if this would cause problems in some situations.
> How would full-calc be affected, for instance.
>
> Jay
It seems this bug can be closed.
--
Leo's Emacs uptime: 1 day, 15 hours, 20 minutes, 27 seconds
prev parent reply other threads:[~2009-08-02 14:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-23 13:15 bug#3357: 23.0.93; Loss of undo info in calc Leo
2009-05-23 15:48 ` bug#3356: " Jay Belanger
2009-05-24 0:25 ` Leo
2009-08-02 14:21 ` Leo [this message]
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