+(defmacro make-pointer (addr type)
+ #+(or allegro mcl) (declare (ignore type))
+ #+(or cmu scl) `(alien:sap-alien (system:int-sap ,addr) (* ,(convert-from-uffi-type (eval type) :type)))
+ #+sbcl `(sb-alien:sap-alien (sb-sys:int-sap ,addr) (* ,(convert-from-uffi-type (eval type) :type)))
+ #+lispworks `(fli:make-pointer :address ,addr :type (quote ,(convert-from-uffi-type (eval type) :type)))
+ #+allegro addr
+ #+mcl `(ccl:%int-to-ptr addr)
+ )
+
+(defmacro pointer-address (ptr)
+ #+allegro ptr
+ #+(or cmu scl) `(system:sap-int (alien:alien-sap ,ptr))
+ #+sbcl `(sb-sys:sap-int (sb-alien:alien-sap ,ptr))
+ #+lispworks `(fli:pointer-address ,ptr)
+ #+mcl `(ccl:%ptr-to-int ,ptr))
+