void
notmuch_threads_destroy (notmuch_threads_t *threads);
+/* Return an estimate of the number of messages matching a search
+ *
+ * This function performs a search and returns Xapian's best
+ * guess as to number of matching messages.
+ */
+unsigned
+notmuch_query_count_messages (notmuch_query_t *query);
+
/* Get the thread ID of 'thread'.
*
* The returned string belongs to 'thread' and as such, should not be