[Bug fortran/33469] New: Add one digit to the default formatted output

[dominiq at lps dot ens dot fr]

Following a discussion on IRC with FX Coudert, I think the number of digits
printed by default in formatted output should be increased by one. Otherwise
the logic of the test case large_real_kind_form_io_2.f90 is flawed as shown by
the attached code. Its output on AMD64 is

 real(4)
 default         808
 1PG20.6        1881
 1PG20.7         808
 1PG20.8           0

 real(8)
 default         1778
 1PG30.14        1978
 1PG30.15        1778
 1PG30.16           0

 real(10)
 default          916
 1PG60.18        1892
 1PG60.19         916
 1PG60.20           0

where the integers are the number of failures to read back a number. g95 gives:

 real(4)
 default 0
 1PG20.6 1881
 1PG20.7 808
 1PG20.8 0

 real(8)
 default  0
 1PG30.14 1978
 1PG30.15 1778
 1PG30.16 0

 real(10)
 default  0
 1PG60.18 1892
 1PG60.19 916
 1PG60.20 0


-- 
           Summary: Add one digit to the default formatted output
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dominiq at lps dot ens dot fr


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33469