From: Kees Cook
> Sent: 13 March 2018 22:15
...
> I'll send a "const_max()" which will refuse to work on
> non-constant-values (so it doesn't get accidentally used on variables
> that could be exposed to double-evaluation), and will work for stack
> array declarations (to avoid the overly-sensitive -Wvla checks).
ISTR the definitions were of the form:
char foo[max(sizeof (struct bah), sizeof (struct baz))];
This doesn't generate a 'foo' with the required alignment.
It would be much better to use a union.
David
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