[or-cvs] r9532: add a comment so i stop worrying (tor/trunk/src/or)

[arma@xxxxxxxx]

Author: arma
Date: 2007-02-08 15:27:58 -0500 (Thu, 08 Feb 2007)
New Revision: 9532

Modified:
   tor/trunk/src/or/routerlist.c
Log:
add a comment so i stop worrying


Modified: tor/trunk/src/or/routerlist.c
===================================================================
--- tor/trunk/src/or/routerlist.c	2007-02-08 19:44:55 UTC (rev 9531)
+++ tor/trunk/src/or/routerlist.c	2007-02-08 20:27:58 UTC (rev 9532)
@@ -1008,6 +1008,8 @@
   if (n_unknown) {
     int32_t avg_fast, avg_slow;
     if (total_exit_bw+total_nonexit_bw) {
+      /* if there's some bandwidth, there's at least one known router,
+       * so no worries about div by 0 here */
       avg_fast = avg_slow =
         (total_exit_bw+total_nonexit_bw)/(smartlist_len(sl)-n_unknown);
     } else {