[Patch, fortran] PR83344 - Use of uninitialized memory with ASSOCIATE and strings

[Paul Richard Thomas]

Bootstraps and regtests on FC27/x86_64 - OK for trunk?

Paul

2018-02-18  Paul Thomas  <pault@gcc.gnu.org>

    PR fortran/83344
    * resolve.c (resolve_assoc_var): Character associate names that
    have no length expression that have variable targets and are
    not deferred length have assumed length.
    * trans-decl.c (gfc_get_symbol_decl): Set 'length' to
    gfc_index_zero_node for character associate names, whose string
    length is a PARM_DECL.

2018-02-18  Paul Thomas  <pault@gcc.gnu.org>

    PR fortran/83344
    * gfortran.dg/associate_36.f90: New test.