+ rset_null_parms *null_parms = parms;
+
+ ct->no_rset_terms = 1;
+ ct->rset_terms = xmalloc (sizeof(*ct->rset_terms));
+ if (parms)
+ ct->rset_terms[0] = null_parms->rset_term;
+ else
+ ct->rset_terms[0] = rset_term_create ("term", -1, "rank-0");
+ ct->rset_terms[0]->nn = 0;
+