+ * Revision 1.13 1997-12-18 10:54:24 adam
+ * New method result set method rs_hits that returns the number of
+ * hits in result-set (if known). The ranked result set returns real
+ * number of hits but only when not combined with other operands.
+ *
+ * Revision 1.12 1997/09/05 15:30:03 adam
+ * Changed prototype for chr_map_input - added const.
+ * Added support for C++, headers uses extern "C" for public definitions.
+ *
+ * Revision 1.11 1995/12/11 09:07:53 adam
+ * New rset member 'flag', that holds various flags about a result set -
+ * currently 'volatile' (set is register dependent) and 'ranked' (set is
+ * ranked).
+ * New set types sand/sor/snot. They handle and/or/not for ranked and
+ * semi-ranked result sets.
+ *
+ * Revision 1.10 1995/10/12 12:40:36 adam