+struct COS_Cons_ent
+{
+ COS_Object_Header header;
+
+ COS_object car;
+ COS_object cdr;
+};
+
+#define COS_CAR(obj) \
+ (((COS_Cons)(obj))->car)
+#define COS_CDR(obj) \
+ (((COS_Cons)(obj))->cdr)
+
+int cos_retain_cons (COS_Object obj);
+int cos_release_cons (COS_Object obj);
+
+