[Bug fortran/57822] New: I/O: "(g0)" wrongly prints "E+0000"

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57822

            Bug ID: 57822
           Summary: I/O: "(g0)" wrongly prints "E+0000"
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org

g0 should print the minimal output. However, gfortran shows the exponent
("E+0000") for REAL(10) and REAL(16):

.100000001
.10000000000000001
.100000000000000000001E+0000
.100000000000000000000000000000000005E+0000

Test case:

print '(g0)', 0.1_4
print '(g0)', 0.1_8
print '(g0)', 0.1_10
print '(g0)', 0.1_16
end