http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57004
Bug #: 57004
Summary: False warning: comparison is always true due to
limited range of data type [-Wtype-limits]
Classification: Unclassified
Product: gcc
Version: 4.7.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: slava.garbu...@gmail.com
Reproduced with cross linaro-gcc 4.6.3 and FSF 4.7.2 for ARM.
Cannot be reproduced with native GCC 4.6.3 on x86
$ cat test.c
int main() {
char a = 'a';
return (a >= 0);
}
$
$ arm-none-linux-gnueabi-gcc test.c -Wextra
test.c: In function 'main':
test.c:3:3: warning: comparison is always true due to limited range of data
type [-Wtype-limits]
$
