GNU bug report logs - #8545
issues with recent doprnt-related changes

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Package: emacs;

Reported by: Paul Eggert <eggert <at> cs.ucla.edu>

Date: Mon, 25 Apr 2011 05:48:01 UTC

Severity: normal

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Richard Stallman <rms <at> gnu.org>
To: Paul Eggert <eggert <at> cs.ucla.edu>
Cc: lekktu <at> gmail.com, 8545 <at> debbugs.gnu.org
Subject: bug#8545: issues with recent doprnt-related changes
Date: Sun, 01 May 2011 19:59:06 -0400

    Second, it's easy to construct an example that involves only "int":

       int
       bar (int i)
       {
	 return i < i + 1;
       }
    With many compilers, BAR always returns 1, even when i == INT_MAX.

I see.

This would break many constructions intended to test whether an
operation did overflow.  Is there any reliable way to test for that?

-- 
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org, www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
  Use free telephony http://directory.fsf.org/category/tel/
This bug report was last modified 4 years and 251 days ago.

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