gcc 4.2 shows the following bogus warning message. I'm not sure whether this
is a regression or a new warning but it would be great if this could be
improved. The warning shows up in elfutils, the minimal testcase was extracted
by Eugeniy Meshcheryakov.
41714:[EMAIL PROTECTED]: ~] /usr/lib/gcc-snapshot/bin/gcc -c -W -Wall test.c
test.c: In function 'fun':
test.c:9: warning: statement with no effect
41715:[EMAIL PROTECTED]: ~] gcc-4.1 -c -W -Wall test.c
41716:[EMAIL PROTECTED]: ~] cat test.c
#include <inttypes.h>
void * fun(char *desc, int descsz)
{
struct
{
uint32_t os;
uint32_t version[descsz / 4 - 1];
} *tag = (__typeof (tag)) desc;
return tag;
}
--
Summary: [4.2 regression] bogus "statement with no effect"
warning
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28280
