anchor.diff:    (declare (ignore type))
     (copy-from-alien-function (first args)))
   
  +(defmethod reader-function ((type (eql 'copy-of)) &rest args)
  +  (declare (ignore type))
  +  (reader-function (first args)))
  +
  +(defmethod writer-function ((type (eql 'copy-of)) &rest args)
  +  (declare (ignore type))
  +  (writer-function (first args)))
  +
   (export 'copy-of)
  
positive.code: ;; License along with this library; if not, write to the Free Software
  ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  ;; $Id: ffi.lisp,v 1.6 2004-11-19 13:02:51 espen Exp $
  
  (in-package "GLIB")
  
  
negative.code: 
  (defmethod destroy-function ((type t) &rest args)
    (declare (ignore type args))
    #'(lambda (location &optional offset)
        (declare (ignore location offset))))
  
  (defmethod copy-to-alien-form  (form (type t) &rest args)
  