https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111022
--- Comment #20 from john.harper at vuw dot ac.nz --- With the first test case all the EN outputs were 666. but the Fortran 2018 standard 13.7.2.3.4 paragraph 2 requires that EN0.0 produce 666.E+0 but Table 13.2 first ENw.d line appears to require either 666.E+00 or 666.+000 unless my copy of F2018 is out of date. (I note that the F2023 standard removed the ambiguity by including "with w > 0" in the offending line of Table 13.2.) However F2018 is unambiguous and agrees with F2023 on EN0.0E0, requiring 666.E+0 With the second test case, which used 66600, I think all Jerry's outputs are correct. On Mon, 4 Sep 2023, jvdelisle at gcc dot gnu.org wrote: > Date: Mon, 4 Sep 2023 17:12:30 +0000 > From: jvdelisle at gcc dot gnu.org <gcc-bugzi...@gcc.gnu.org> > To: John Harper <john.har...@vuw.ac.nz> > Subject: [Bug libfortran/111022] ES0.0E0 format gave ES0.dE0 output with d too > high. > Resent-Date: Tue, 5 Sep 2023 05:12:45 +1200 (NZST) > Resent-From: <john.har...@vuw.ac.nz> > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111022 > > --- Comment #18 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- > With Johns test case from Comment #15 and the patch in Comment #17 I get the > following: > > $ ./a.out > real kinds 4 8 10 16 > With (A,1X,EN0.0 ) 666. > With (A,1X,EN0.0 ) 666. > With (A,1X,EN0.0 ) 666. > With (A,1X,EN0.0 ) 666. > With (A,1X,EN0.0E0) 666. > With (A,1X,EN0.0E0) 666. > With (A,1X,EN0.0E0) 666. > With (A,1X,EN0.0E0) 666. > With (A,1X,ES0.0 ) 7.E+2 > With (A,1X,ES0.0 ) 7.E+2 > With (A,1X,ES0.0 ) 7.E+2 > With (A,1X,ES0.0 ) 7.E+2 > With (A,1X,ES0.0E0) 7.E+2 > With (A,1X,ES0.0E0) 7.E+2 > With (A,1X,ES0.0E0) 7.E+2 > With (A,1X,ES0.0E0) 7.E+2 > ERROR STOP Scale factor out of range in format specifier 'E' or 'D' > > Notice that the width of exponents is also minimized and where the exponent is > zero it is not shown at all. If I do specify an exponent width it shown. For > example with exponent width of 4 and changing the value to 66600 I get: > > $ ./a.out > real kinds 4 8 10 16 > With (A,1X,EN0.0 ) 67.E+3 > With (A,1X,EN0.0 ) 67.E+3 > With (A,1X,EN0.0 ) 67.E+3 > With (A,1X,EN0.0 ) 67.E+3 > With (A,1X,EN0.0E4) 67.E+0003 > With (A,1X,EN0.0E4) 67.E+0003 > With (A,1X,EN0.0E4) 67.E+0003 > With (A,1X,EN0.0E4) 67.E+0003 > With (A,1X,ES0.0 ) 7.E+4 > With (A,1X,ES0.0 ) 7.E+4 > With (A,1X,ES0.0 ) 7.E+4 > With (A,1X,ES0.0 ) 7.E+4 > With (A,1X,ES0.0E4) 7.E+0004 > With (A,1X,ES0.0E4) 7.E+0004 > With (A,1X,ES0.0E4) 7.E+0004 > With (A,1X,ES0.0E4) 7.E+0004 > ERROR STOP Scale factor out of range in format specifier 'E' or 'D' > > This seems reasonable to me. Other opinions? > > -- > You are receiving this mail because: > You reported the bug. > -- John Harper, School of Mathematics and Statistics Victoria Univ. of Wellington, PO Box 600, Wellington 6140, New Zealand. e-mail john.har...@vuw.ac.nz
