extern bool termNodeList_empty (/*@sef@*/ termNodeList);
# define termNodeList_empty(s) (termNodeList_size(s) == 0)
-extern /*@falsenull@*/ bool termNodeList_isDefined (termNodeList p_t);
+extern /*@falsewhennull@*/ bool termNodeList_isDefined (termNodeList p_t);
# define termNodeList_isDefined(s) ((s) != (termNodeList) 0)
extern /*@only@*/ termNodeList termNodeList_new(void);