Messages in this thread | | | Subject | Re: {put,get}_user() side effects | From | Xavier Bestel <> | Date | Tue, 06 Apr 2004 17:47:14 +0200 |
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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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