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Re: gcc-current: badly worded warning?
"Dave Korn" <dave.korn@artimi.com> writes:
> On 30 May 2007 18:05, Andreas Schwab wrote:
>
>> Lothar Werzinger writes:
>>
>>> Eyal Lebedinsky wrote:
>>>
>>>> I see two kinds of warnings:
>>>> warning: logical '||' with non-zero constant will always evaluate as true
>>>> warning: logical '&&' with non-zero constant will always evaluate as true
>>>>
>>>> The first statement is true, the second false. It can say (if the case is
>>>> such) warning: logical '&&' with zero constant will always evaluate as
>>>> false and even warn of warning: logical '&&' with non-zero constant will
>>>> have no effect
>>>
>>> That depends, if the non-zero constant is the LHS of the && operator the
>>> warning is IMHO correct.
>>
>> 1 && 0 is still 0.
>
> But the 0 will never be evaluated.
Sure it will.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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