2006-12-31  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/23060
	* intrinsic.c (compare_actual_formal ): Distinguish argument
	list functions from keywords.
	* intrinsic.c (sort_actual): If formal is NULL, the presence of
	an argument list function actual is an error.
	* trans-expr.c (conv_arglist_function) : New function to
	implement argument list functions %VAL, %REF and %LOC.
	(gfc_conv_function_call): Call it.
	* resolve.c (resolve_actual_arglist): Add arg ptype and check
	argument list functions.
	(resolve_function, resolve_call): Set value of ptype before
	calls to resolve_actual_arglist.
	* primary.c (match_arg_list_function): New function.
	(gfc_match_actual_arglist): Call it before trying for a
	keyword argument.

2006-12-31  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/23060
	* gfortran.dg/c_by_val.c: Called by c_by_val_1.f.
	* gfortran.dg/c_by_val_1.f: New test.
	* gfortran.dg/c_by_val_2.f: New test.
	* gfortran.dg/c_by_val_3.f: New test.

From-SVN: r120295