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[Bug c/49754] Let gcc warn about all uninitialized variables
- From: "giecrilj at stegny dot 2a.pl" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 15 Jul 2011 09:35:43 +0000
- Subject: [Bug c/49754] Let gcc warn about all uninitialized variables
- Auto-submitted: auto-generated
- References: <bug-49754-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49754
--- Comment #2 from Christopher Yeleighton <giecrilj at stegny dot 2a.pl> 2011-07-15 09:35:42 UTC ---
(In reply to comment #1)
> (In reply to comment #0)
> > == Expected Results ==
> > foo.c: In function âfooâ:
> > foo.c:2:?: warning: âxâ is used uninitialized in this function
>
> It should really warn if 'x.i' is used uninitialized, not 'x'
Since (x) is uninitialized, so is (x.i). It is impossible to recognize the
problem when (x.i) is eventually accessed by a client of foo:
{
struct i x = foo ();
printf ("%i", +x.i);
}