Promote -Wno-sizeof-array-argument to an error

[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.

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.

Any opinions?

Have a lovely night!
Alex

-- 
<https://www.alejandro-colomar.es/>
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