From: ian <ian>
Date: Sat, 24 May 2008 00:32:36 +0000 (+0000)
Subject: really stop computing polarity when applicable
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=74b6a849f61d7e9f4e30c466c0f57a5ba2a3474e;p=trains.git

really stop computing polarity when applicable
---

diff --git a/hostside/safety.c b/hostside/safety.c
index 1bdfb18..6b9ca79 100644
--- a/hostside/safety.c
+++ b/hostside/safety.c
@@ -643,7 +643,7 @@ static int fdet_nextseg(TrackLocation *t, TrackAdvanceContext *c,
     }
     if (u->know_best_polarity &&
 	!t->seg->i->invertible &&
-	u->noninv_tally[ t->backwards ^ u->train_polarity_inverted ^ 1]) {
+	u->train_polarity_inverted != t->backwards) {
       /* incompatible, stop now */
       u->walk_compute_polarise= 0;
     }