> On Jul 29, 2019, at 6:24 AM, David Laight <david.lai...@aculab.com> wrote:
>
> 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’.
The clang will generate a warning only if “foo" is NULL.
