Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH v2] acpica: fix -Wnull-pointer-arithmetic warnings | Date | Mon, 29 Jul 2019 10:24:27 +0000 |
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From: Moore, Robert > Sent: 26 July 2019 20:36 ... > This is because pointer arithmetic > on a pointer not pointing to an array is an undefined behavior (C11 6.5.6, constraint 8). ...
The standards committee as smoking dope again :-) If that is enforced as a compiler warning/error a lot of code 'breaks'. Anything that does: struct foo *foo = ...; struct bar *bar = (void *)(foo + 1); suddenly becomes 'invalid'.
David
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