Date: Sat, 15 Feb 2003 02:30:42 -0600 From: David Booth <wbooth@austin.rr.com> To: parv <parv_fm@emailgroups.net>, Huang wen hui <hwh@gddsn.org.cn> Cc: java@FreeBSD.ORG Subject: Re: Math.pow bug for jdk1.3.1-p8 ? Message-ID: <200302150230.42889.wbooth@austin.rr.com> In-Reply-To: <20030215081046.GA68158@moo.holy.cow> References: <3E4C9DDD.4040204@gddsn.org.cn> <20030215011004.GB65944@moo.holy.cow> <20030215081046.GA68158@moo.holy.cow>
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On Saturday 15 February 2003 02:10 am, parv wrote:
> in message <20030215011004.GB65944@moo.holy.cow>,
> wrote parv thusly...
>
> > in message <3E4C9DDD.4040204@gddsn.org.cn>,
> > wrote Huang wen hui thusly...
> >
> > > I build jdk1.3.1-p8 for 4.7-STABLE(today)...
> > >
> > > 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);
> > > }
> > > }
> > >
> > > %java TestPow
> > > i=0
> >
> > I tried it w/ jdk-1.3.1-p8 on 4.7-Release-p3; same result. But then
> > Alexander said something about the gcc 3.2.1 bug, which i do have
> > installed. I will try w/ gcc 3.2.2.
>
> Well it seems GCC 3.2.1 is not at fault. According to the log, the
> port was built w/ system GCC (2.9.5). I did...
>
> grep -i gcc log-0213-2202 | grep -v '^/usr/bin/gcc'
>
>
> ...which produced 71 lines beginning w/ 'gcc', plus patching log,
> plus a few lines beginning w/ "adding: sun/rmi...".
>
> Java version is...
>
> java version "1.3.1-p8"
> Java(TM) 2 Runtime Environment, Standard Edition (build
> 1.3.1-p8-toor-030213-22:07) Classic VM (build 1.3.1-p8-toor-030213-22:07,
> green threads, nojit)
>
>
> - Parv
I can confirm that it is not due to gcc3.2.1. I just built 1.3.1-p8 forcing
it to compile wiht gcc3.2.2 and I see bogus output from TestPow, altho
different from above:
# java TestPow
i=17
It worked correctly with 1.3.1-p7 built with the system gcc. I will now try
rebuilding 1.3.7-p7 with gcc3.2.2 and see what happens.
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