[Bug fortran/118793] request NAMELIST reports of input errors indicate position of error and show line containing error

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D118793

--- Comment #13 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jerry DeLisle <[email protected]>:

https://gcc.gnu.org/g:86b7458e072b0651f8b04bcba64f5e2d1586bdec

commit r17-2906-g86b7458e072b0651f8b04bcba64f5e2d1586bdec
Author: Jerry DeLisle <[email protected]>
Date:   Tue Jul 28 19:02:36 2026 -0700

    fortran: [PR118793] Additional expanded namelist read diagnostics

    These changes add expanded diagnostics to error locations not addressed
    in the original patch. This is done by using a new helper function that
    saves the error message information for namelist related errors in a
    buffer and keeping a status bit in the st_parameter_dt structure.

            PR libfortran/118793

    libgfortran/ChangeLog:

            * io/io.h (NML_ERR_MSG_LEN): New macro.
            (st_parameter_dt): Add nml_err_pending bit.
            (gfc_unit): Add nml_err_msg.
            * io/list_read.c (nml_error): New function.
            (eat_separator): Use new function
            (convert_integer): Likewise.
            (convert_unsigned): Likewise.
            (parse_repeat): Likewise.  Save the position where the repeat
            count starts and report it.
            (read_logical): Likewise.
            (read_integer): Likewise.
            (parse_real): Likewise.
            (read_complex): Likewise.
            (read_real): Likewise.
            (check_type): Likewise.
            (list_formatted_read_scalar): Likewise.
            (read_character): Likewise.  Save the initial position of the v=
alue
            (nml_read_obj): Unwind to nml_err_ret on a deferred error.
            (namelist_read): Store deferred errors in the unit's nml_err_msg
            buffer.

    gcc/testsuite/ChangeLog:

            * gfortran.dg/namelist_101.f90: Fix dg-do directive typo and
            check the expanded diagnostic.
            * gfortran.dg/namelist_104.f90: New test.=