GNU bug report logs - #17681
24.3.91; "Arithmetic Error" in hide-ifdef mode when using shift operators

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Package: emacs;

Reported by: David Engster <deng <at> randomsample.de>

Date: Tue, 3 Jun 2014 19:14:02 UTC

Severity: normal

Found in version 24.3.91

Fixed in version 25.0.95

Done: Noam Postavsky <npostavs <at> users.sourceforge.net>

Bug is archived. No further changes may be made.

Full log

Message #17 received at 17681 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Luke Lee <luke.yx.lee <at> gmail.com>
Cc: 17681 <at> debbugs.gnu.org, Stefan Monnier <monnier <at> iro.umontreal.ca>,
 David Engster <deng <at> randomsample.de>
Subject: Re: bug#17681: 24.3.91;
 "Arithmetic Error" in hide-ifdef mode when using shift operators
Date: Fri, 06 Jun 2014 03:17:09 -0400

Luke Lee wrote:

>>I think he already sent me a patch fixing this problem
>
> Yes, I think my new patch fixed that problem.

Is this patch posted anywhere?

> However, if you're trying to hide jiffies.h it will eventually failed
> at some other place due to the "unsigned long" integer postfix (i.e.
> the "UL" in 100000UL), which hideif still consider it a "TODO".
>
> #define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ)

When you say fail, do you mean it will give an error?
If so, why not ignore-errors around these evaluations?
This bug report was last modified 9 years and 25 days ago.

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