+static inline int
+ao_lisp_is_cons(ao_poly poly) {
+ return (ao_lisp_poly_base_type(poly) == AO_LISP_CONS);
+}
+
+static inline int
+ao_lisp_is_pair(ao_poly poly) {
+ return poly != AO_LISP_NIL && (ao_lisp_poly_base_type(poly) == AO_LISP_CONS);
+}
+