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bug#32485: 27.0.50; Problem with zerop on 32-bit platforms

From: Ken Brown
Subject: bug#32485: 27.0.50; Problem with zerop on 32-bit platforms
Date: Mon, 20 Aug 2018 15:54:46 -0400
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

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

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:

Yes, that does fix the error.  Thanks.

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.


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