/*
-** Copyright (C) University of Virginia, Massachusetts Institue of Technology 1994-2001.
+** Copyright (C) University of Virginia, Massachusetts Institue of Technology 1994-2003.
** See ../LICENSE for license information.
**
*/
/*@constant null sRefSet sRefSet_undefined;@*/
# define sRefSet_undefined ((sRefSet) 0)
-extern /*@truenull@*/ bool sRefSet_isUndefined (sRefSet p_s) /*@*/ ;
-extern /*@truenull@*/ bool sRefSet_isEmpty (/*@sef@*/ sRefSet p_s) /*@*/ ;
-extern /*@falsenull@*/ bool sRefSet_isDefined (sRefSet p_s) /*@*/ ;
+extern /*@nullwhentrue@*/ bool sRefSet_isUndefined (sRefSet p_s) /*@*/ ;
+extern /*@nullwhentrue@*/ bool sRefSet_isEmpty (/*@sef@*/ sRefSet p_s) /*@*/ ;
+extern /*@falsewhennull@*/ bool sRefSet_isDefined (sRefSet p_s) /*@*/ ;
# define sRefSet_isUndefined(s) ((s) == sRefSet_undefined)
# define sRefSet_isDefined(s) ((s) != sRefSet_undefined)