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SubjectRe: {put,get}_user() side effects
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On Tue, 2004-04-06 at 08:30 -0700, Kevin P. Fleming wrote:
> Xavier Bestel wrote:
>
> > Sorry, I read too fast. I didn't know sizeof could avoid side effects.
> >
>
> Both typeof and sizeof are compile-time constructs, so there is no
> opportunity for any expression side effects to occur. Presumably one
> could do:
>
> typeof(1/0UL)
>
> without ever causing the obvious side effect either (granted, this is a
> pointless piece of code :-)).

Yeah, now that you tell it, it seems obvious when you consider macros
like min/max and friends which rely on typeof to avoid side-effects.


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