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[Bug c/46015] New: -Wunused-but-set-variable false positive
- From: "foldy at rmki dot kfki.hu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 14 Oct 2010 12:01:25 +0000
- Subject: [Bug c/46015] New: -Wunused-but-set-variable false positive
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46015
Summary: -Wunused-but-set-variable false positive
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: foldy@rmki.kfki.hu
/* test.c */
int f(int i)
{
static void* labs[2] =
{ &&lab1,
&&lab2
};
goto *(labs[i&1]);
lab1: return 1;
lab2: return 2;
return 0;
}
/* test.c end */
GCC 4.6.0 20101014 -Wall prints the followiung warning:
test.c: In function 'f':
test.c:5:16: warning: variable 'labs' set but not used
[-Wunused-but-set-variable]
(GCC 4.5.1 is OK.)