[Bug libfortran/77393] [7 Regression] Revision r237735 changed the behavior of F0.0

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77393

--- Comment #13 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Author: jvdelisle
Date: Tue Sep  6 23:22:26 2016
New Revision: 240018

URL: https://gcc.gnu.org/viewcvs?rev=240018&root=gcc&view=rev
Log:
2016-09-06  Jerry DeLisle  <jvdeli...@gcc.gnu.org>

        PR libgfortran/77393
        * io/write_float.def (build_float_string): Recognize when the
        result will not fit in the user provided, star fill, and exit
        early.

        * gfortran.dg/fmt_f0_2.f90: Update test.
        * gfortran.dg/fmt_f0_3.f90: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/fmt_f0_3.f90
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/fmt_f0_2.f90
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/io/write_float.def