[Bug middle-end/79221] missing -Wstringop-overflow= on a strcat overflow

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79221

--- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #0)
> Similar to bug 79220, the -Wstringop-overflow option diagnoses the buffer
> overflow in the call to strcat in f() in the program below but fails to do
> the same for the strcat() overflow in g().  As in the referenced bug, GCC
> transforms the second strcat() to an assignment followed by a call to
> memcpy, defeating the overflow detection.  GCC should avoid this
> transformation when the destination isn't big enough for the copy.
> 
> I expect this bug will be resolved by a comprehensive fix for bug 79220

bug 79220 was fixed... was the fix for it comprehensive enough?