[Bug libfortran/111022] ES0.0E0 format gave ES0.dE0 output with d too high.

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111022

--- Comment #21 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
(In reply to john.harper from comment #20)
> 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 unless my copy of F2018 is out of date.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.

I did not touch the code that writes the Exponent parts yet. So will have a
look.