extern bool constraintList_isEmpty (/*@sef@*/ constraintList p_e) /*@*/;
-# define constraintList_isEmpty(e) ( (constraintList_isUndefined((e)) ) ||( ( (e)->nelements == 0) ) )
+# define constraintList_isEmpty(e) ((constraintList_isUndefined((e)) ) ||(( (e)->nelements == 0) ) )
extern constraintList constraintList_single (/*@only@*/ constraint) ;