[Bug libfortran/83811] fortran 'e' format broken for single digit exponents

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83811

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2018-01-14
           Assignee|unassigned at gcc dot gnu.org      |jvdelisle at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #3 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Further investigation is showing me that the buffer containing the float string
is wrong before it goes into build_float_string.  Ths means it has something to
do with snprintf.

In the wrong output case with write(s, '(1pe5.0e1)') 1.e-4, the buffer contains
"+1.e-0" with nprinted=7. This indicates we have an off by 1 like error here.