PR fortran/15326
* trans-array.c (gfc_add_loop_ss_code): Set ss->string_length in
the GFC_SS_FUNCTION case too.
* trans-expr.c (gfc_conv_function_val): Allow symbols to be bound
to function pointers as well as function decls.
(gfc_interface_sym_mapping, gfc_interface_mapping): New structures.
(gfc_init_interface_mapping, gfc_free_interface_mapping)
(gfc_get_interface_mapping_charlen, gfc_get_interface_mapping_array)
(gfc_set_interface_mapping_bounds, gfc_add_interface_mapping)
(gfc_finish_interface_mapping, gfc_apply_interface_mapping_to_cons)
(gfc_apply_interface_mapping_to_ref)
(gfc_apply_interface_mapping_to_expr)
(gfc_apply_interface_mapping): New functions.
(gfc_conv_function_call): Evaluate the arguments before working
out where the result should go. Make the null pointer case provide
the string length in parmse.string_length. Cope with non-constant
string lengths, using the above functions to evaluate such lengths.
Use a temporary typespec; don't assign to sym->cl->backend_decl.
Don't assign to se->string_length when returning a cached array
descriptor.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104040
138bc75d-0d04-0410-961f-
82ee72b054a4