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Date: Tue, 29 Nov 2005 23:58:35 -0500
To: Debian BTS Submission <[EMAIL PROTECTED]>
Subject: gcc-4.0: Please warn on impossible && conditionals
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From: Justin Pryzby <[EMAIL PROTECTED]>
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Package: gcc-4.0
Version: 4.0.2-4
Severity: wishlist
Tags: upstream
gcc will warn on something like
char c;
// ...
if (c>256) {
// warning: comparison is always false due to limited range of data type
// ...
}
Please consider also warning on things like:
if (0==c && 1==c)
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Date: Wed, 30 Nov 2005 08:17:25 -0500
To: Falk Hueffner <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: Bug#341345: gcc-4.0: Please warn on impossible && conditionals
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From: Justin Pryzby <[EMAIL PROTECTED]>
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On Wed, Nov 30, 2005 at 10:01:00AM +0100, Falk Hueffner wrote:
> Justin Pryzby <[EMAIL PROTECTED]> writes:
>
> > Please consider also warning on things like:
> >
> > if (0==c && 1==c)
>
> How would this be different from -Wunreachable-code?
It wouldn't; thanks.
--
Clear skies,
Justin
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