/*@constant int functionScope;@*/
# define functionScope 3
-extern /*@falsenull@*/ bool usymtab_isDefined (usymtab p_u) /*@*/ ;
+extern /*@falsewhennull@*/ bool usymtab_isDefined (usymtab p_u) /*@*/ ;
/*@constant null usymtab usymtab_undefined; @*/
# define usymtab_undefined ((usymtab)NULL)