GNU bug report logs -
#32485
27.0.50; Problem with zerop on 32-bit platforms
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Reported by: Ken Brown <kbrown <at> cornell.edu>
Date: Mon, 20 Aug 2018 18:14:01 UTC
Severity: normal
Found in version 27.0.50
Done: Paul Eggert <eggert <at> cs.ucla.edu>
Bug is archived. No further changes may be made.
Full log
Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):
On Mon 20 Aug 2018, Ken Brown wrote:
> On 8/20/2018 2:46 PM, Andy Moreton wrote:
>> On Mon 20 Aug 2018, Ken Brown wrote:
>>
>>> Evaluating (zerop (lsh -1 32)) on 32-bit Cygwin yields
>>>
>>> Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p
>>> -4294967296)
>>>
>>> I realize that the fate of lsh is still being debated, but I think
>>> there's a problem with zerop anyway, because directly evaluating (zerop
>>> -4294967296) leads to the same error.
>>
>> Could this be bug#32477 ? Please try the patch I posted in:
>> http://lists.gnu.org/archive/html/bug-gnu-emacs/2018-08/msg00467.html
>
> Yes, that does fix the error. Thanks.
Good to confirm that its the same underlying problem (but note that an
update on that bug shows further fixes are needed).
> But let's leave the bug open, because vc-hg-state-fast might still need
> attention. Currently (zerop (lsh -1 32)) returns nil on all platforms, so
> it's useless; but that might change.
Agreed. That may need fixing after the semantics of lsh are sorted out.
AndyM
This bug report was last modified 6 years and 357 days ago.
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