+ * Revision 1.11 1996-10-29 13:43:44 adam
+ * Removed definition of SYSNO.
+ *
+ * Revision 1.10 1995/09/06 16:10:57 adam
+ * More work on boolean sets.
+ *
+ * Revision 1.9 1994/09/28 16:58:26 quinn
+ * Small mod.
+ *
+ * Revision 1.8 1994/09/28 12:56:09 quinn
+ * Added access functions (ISPT)
+ *
+ * Revision 1.7 1994/09/28 11:56:13 quinn
+ * Removed const from input to is_merge
+ *
+ * Revision 1.6 1994/09/28 11:29:28 quinn