From owner-freebsd-current  Thu May 16  4:31:27 2002
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Date: Thu, 16 May 2002 20:31:19 +0900
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From: "Akinori MUSHA" <knu@iDaemons.org>
To: Bill Fenner <fenner@research.att.com>
Cc: obrien@FreeBSD.org, rivers@dignus.com, audit@FreeBSD.ORG,
	current@FreeBSD.ORG
Subject: Re: moused(8): char signed-ness problem with gcc 3.1
In-Reply-To: <200205160346.UAA27116@windsor.research.att.com>
References: <200205160346.UAA27116@windsor.research.att.com>
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[CC: obrien, who has been working on bringing in gcc 3.1]

At Wed, 15 May 2002 20:46:06 -0700,
Bill Fenner wrote:
> > So - yes - it seems gcc 3.1 does have a problem...
> 
> Indeed - easily determined by breaking down the expression.
> 
> So, who's gonna report it to gcc-bugs?  knu?...
> 
> int
> main()
> {
>    unsigned char i = 127;
>    char j;
> 
>    printf("%d\n", ((char)(i << 1)));
>    j = ((char)(i << 1)) / 2;
>    printf("%d\n", j);
>    j = ((char)(i << 1));
>    printf("%d\n", j / 2);
>    return 0;
> }

Somehow, specifying -fsigned-char, which I thought was the default,
fixed the problem.  So, the cause may be in our configuration of gcc?

I'll send-pr if it isn't.

-- 
                     /
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Akinori MUSHA aka / (_ /  ( (__(  @ iDaemons.org / and.or.jp

"Somewhere out of a memory.. of lighted streets on quiet nights.."

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