Date: Sat, 15 Feb 2003 20:03:18 +1300 From: Jonathan Chen <jonc@chen.org.nz> To: Huang wen hui <hwh@gddsn.org.cn> Cc: Greg Lewis <glewis@eyesbeyond.com>, java@FreeBSD.ORG Subject: Re: Math.pow bug for jdk1.3.1-p8 ? Message-ID: <20030215070318.GA655@grimoire.chen.org.nz> In-Reply-To: <3E4D8F19.4050204@gddsn.org.cn> References: <3E4C9DDD.4040204@gddsn.org.cn> <20030215092059.A8186@misty.eyesbeyond.com> <3E4D8F19.4050204@gddsn.org.cn>
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On Sat, Feb 15, 2003 at 08:51:37AM +0800, Huang wen hui wrote:
[...]
> >>public class TestPow {
> >>public static void main(String[] args) {
> >>int exp =9;
> >>int i = (int)Math.pow(2.0,(double)exp);
> >>System.out.println("i="+i);
> >>}
> >>}
> >>
> >>----------output------------
> >>%java TestPow
> >>i=0
I can confirm the problem on my machine as well:
% uname -a
FreeBSD grimoire.chen.org.nz 4.7-STABLE FreeBSD 4.7-STABLE #0: Sat Feb 15 15:42:09 NZDT 2003 root@grimoire.chen.org.nz:/usr/obj/usr/src/sys/GRIMOIRE i386
% java -version
java version "1.3.1-p8"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-p8-root-030214-07:23)
Classic VM (build 1.3.1-p8-root-030214-07:23, green threads, nojit)
% java TestPow
i = 0
Java was built using base-system's cc.
--
Jonathan Chen <jonc@chen.org.nz>
----------------------------------------------------------------------
Power corrupts, Absolute Power is pretty neat
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