From: Lars Magne Ingebrigtsen <larsi@gnus.org>
To: Helmut Eller <eller.helmut@gmail.com>
Cc: 5114@debbugs.gnu.org
Subject: bug#5114: 23.1.50; (string-to-number (number-to-string most-positive-fixnum))
Date: Sun, 18 Sep 2011 11:47:58 +0200 [thread overview]
Message-ID: <m3ipoqp4fl.fsf@stories.gnus.org> (raw)
In-Reply-To: <m28wdkgm50.fsf@gmail.com> (Helmut Eller's message of "Thu, 03 Dec 2009 15:36:27 +0100")
Helmut Eller <eller.helmut@gmail.com> writes:
> (setq x (string-to-number (number-to-string most-positive-fixnum)))
> (= most-positive-fixnum x) => nil
>
> x is 2305843009213693440 but it should be most-positive-fixnum
> which is 2305843009213693951.
>
> The test
> (= most-positive-fixnum
> (string-to-number (number-to-string most-positive-fixnum)))
> seems to work as expected on 32-bit machines but not so on 64 bit.
I'm unable to reproduce this on Emacs 24, so I think it's likely that
this has been fixed by all the numerical fixes that have been applied
the last year.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
next prev parent reply other threads:[~2011-09-18 9:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-03 14:36 bug#5114: 23.1.50; (string-to-number (number-to-string most-positive-fixnum)) Helmut Eller
2009-12-03 20:52 ` Stefan Monnier
2009-12-05 12:36 ` Helmut Eller
2009-12-05 14:25 ` Eli Zaretskii
2009-12-05 15:18 ` Helmut Eller
2009-12-05 16:44 ` Eli Zaretskii
2011-09-18 9:47 ` Lars Magne Ingebrigtsen [this message]
2011-09-18 10:57 ` Leo
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