[Bug fortran/17190] New: MPFR semantics for mpfr_get_z_exp changed

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

mpfr_get_z_exp() changed to return both a negative exponent and a negative 
value between 2.0.1 (included in gmp-4.1.3) and 2.0.2.  
fortran/arith.c:gfc_mpfr_to_mpz() expects a positive value and negates the 
sign, producing an incorrect result with newer versions of MPFR.

-- 
           Summary: MPFR semantics for mpfr_get_z_exp changed
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dje at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: *-*-*
  GCC host triplet: *-*-*
GCC target triplet: *-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17190