2010-01-09  Tobias Burnus  <burnus@net-b.de>                                      

        PR fortran/41298
        * trans-expr.c (gfc_trans_structure_assign): Handle
        c_null_(fun)ptr.
        * symbol.c (gen_special_c_interop_ptr): Add NULL_EXPR
        to the constructor for c_null_(fun)ptr.
        * resolve.c (resolve_structure_cons): Add special case
        for c_null_(fun)ptr.

2010-01-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/41298
        * gfortran.dg/c_ptr_tests_14.f90: New test.

From-SVN: r155755