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[Bug fortran/20441] -finit-local-zero is missing from gfortran
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Nov 2006 16:47:32 -0000
- Subject: [Bug fortran/20441] -finit-local-zero is missing from gfortran
- References: <bug-20441-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from pinskia at gcc dot gnu dot org 2006-11-27 16:47 -------
(In reply to comment #5)
> > > Besides zero initialization [...] a initialization to a (signaling) NaN (for
> > > complex, real) would be also nice to find uninitialized variables.
> >
> > Why use -Wuninitialize will warn about those cases (though it can produce some
> > false positives).
>
> -Wuninitialize does not always work (false negative). Or how do you expect a
> compiler to find the problem in such cases:
Well in that case r is unused so .. but if you made it used by a write(*,*) r
in the program, this becomes another PR with a C example which I cannot find
right now.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20441