[Openmcl-devel] Bug in integer arithmetic (AMD64)

Leo sdl.web at gmail.com
Thu Jul 21 03:07:58 UTC 2011


On 2011-07-20 18:52 +0800, Eric Marsden wrote:
> Surprising!
>
> ,----
> | ? (lisp-implementation-version)
> | "Version 1.7-dev-r14890M  (LinuxX8664)"
> | ? (let ((a 1)) (* 144115188075855873 a -1))
> | 144115188075855872
> `----

Welcome to Clozure Common Lisp Version 1.7-dev-r14882M-trunk  (DarwinX8664)!
? (let ((a 1)) (* 144115188075855873 a -1))
-144115188075855873

Leo



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