On Thu, Aug 08, 2024 at 09:31:37AM GMT, Martin Uecker wrote: > Am Donnerstag, dem 08.08.2024 um 02:36 +0200 schrieb Alejandro Colomar: > > Hi Martin, > > > > Can we promote -Wno-sizeof-array-argument to a hard error? I don't > > think there's any legitimate use sizeof() on such a parameter. > > I am a bit worried that it might prevent people from adding size information > to arguments, by transforming later use of sizeof on such a pointer argument > into a hard error. > > So I would not do this at this time, until we have fully evolved the > size checking and the benefits are clear.
Hmmm, I see; makes sense. Thanks! Alex > > > > > It would be an incompatible extension to ISO C, which would make sure > > that there are no remaining uses of sizeof(array_param), which would > > itself allow in the future --if n2906 or something similar is accepted-- > > repurposing sizeof() to return the size in bytes of the array (instead > > of the size of a pointer) without worrying about breaking existing code. > > I agree with this goal, but this is a long term goal. > > > Martin > > > > > > -- <https://www.alejandro-colomar.es/>
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