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richardwhiuk
on Sept 14, 2020
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Massacring C Pointers (2018)
IIRC, both of those are undefined.
edflsafoiewq
on Sept 21, 2020
[–]
&a[3] is allowed, it's a one-past-the-end-of-the-array pointer. &a[4] would be UB (if it were evaluated).
sizeof(a[3]) is not evaluating a[3], so it also isn't UB.
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