[Bug c++/16977] New: Bogus warning using HUGE_VAL
thor at math dot tu-berlin dot de
gcc-bugzilla@gcc.gnu.org
Wed Aug 11 08:40:00 GMT 2004
g++3.4 generates a bogus warning when using the ANSI defined HUGE_VAL floating
point constant when compiling with -pedantic. To reproduce, enter the following
test program and save it as test.c:
/* snip */
#include <cmath>
int main(int argc,char **argv)
{
double v = HUGE_VAL;
return 0;
}
/* snip */
and compile it with
$ g++3.4 -pedantic test.c
g++ reports the following warnings on compilation:
test.c:5:14: warning: use of C99 hexadecimal floating constant
test.c: In function `int main(int, char**)':
test.c:5: warning: floating constant exceeds range of "double"
However, the above program is fully within the limits of ANSI-C++ and
well-defined, so it should not warn at all, not even with -pedantic.
--
Summary: Bogus warning using HUGE_VAL
Product: gcc
Version: 3.4.1
Status: UNCONFIRMED
Severity: minor
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: thor at math dot tu-berlin dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux
GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16977
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