[Bug fortran/47293] New: libquadmath: strtoflt128 - C99 hex floating point format missing

["burnus at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47293

           Summary: libquadmath: strtoflt128 - C99 hex floating point
                    format missing
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: burnus@gcc.gnu.org


(At some point, I - or someone else - should really create a libquadmath
component in Bugzilla.)

Follow up to http://gcc.gnu.org/ml/gcc-patches/2011-01/msg00369.html

strtoflt128 currently does not support the C99 hex floating point format

However, there is: "gethex" in gdtoa/strtodg.c (called from strtoflt128) thus
it might already be implemented.

>From POSIX 2003 for strtod:

"The expected form of the subject sequence is an optional plus or minus sign,
 then one of the following:
 [...]
 * A 0x or 0X, then a non-empty sequence of hexadecimal digits optionally
   containing a radix character, then an optional binary exponent part"