https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91225
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |diagnostic
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-07-22
CC| |msebor at gcc dot gnu.org
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=52167
Ever confirmed|0 |1
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Clang has diagnosed the following with -Wuninitialized (included in -Wall)
since at least version 3.0:
int foo(void)
{
int a = a;
return a;
}
GCC requires -Winit-self to diagnose this bug.
Neither diagnoses the test case in comment #0 (the initialization is eliminated
and the variable is unused).
I suppose this could be viewed as a duplicate of pr52167 but that request (and
all its duplicates) is specific to C++ and classes with ctors where the fix I
suspect is substantially more involved than just flipping -Winit-self on.
With that I think it makes sense to treat this as separate. Confirmed.
