Re: sparse segfaults
From: Nikita Danilov
Date: Sun Nov 21 2004 - 17:31:17 EST
linux-os <linux-os@xxxxxxxxxxxxxxxxxx> writes:
> On Sat, 20 Nov 2004, Russell King wrote:
>
[...]
>>
>> int tickadj = 500/HZ ? : 1; /* microsecs */
>>
>> which makes it look like sparse doesn't understand such constructions.
>
> I don't think any 'C' compiler should understand such constructions
> either.
> There is no result for the TRUE condition, and the standard
> does not provide for a default. The compiler should have written
> a diagnostic.
This is GCC extension.
foo ? : bar
is equivalent to
foo ? foo : bar
except that foo is evaluated only once.
Nikita.
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