# HG changeset patch
# User Chris Cannam
# Date 1417103772 0
# Node ID 8b33cb568b109d70d32f8b793ac6be24d14daea3
# Parent  c665173b3a3369c2ceb540f90bd98ee0331173b7
Fix inconsistency (with Finder) in choice of preference where two costs come out equal

diff -r c665173b3a33 -r 8b33cb568b10 src/Matcher.cpp
--- a/src/Matcher.cpp	Thu Nov 27 15:29:43 2014 +0000
+++ b/src/Matcher.cpp	Thu Nov 27 15:56:12 2014 +0000
@@ -337,8 +337,13 @@
             double cost1 = min1 + distance;
             double cost2 = min2 + distance;
             double cost3 = min3 + diagDistance;
+
+            // Choosing is easy if there is a strict cheapest of the
+            // three. If two or more share the lowest cost, we choose
+            // in order of preference: cost3 (AdvanceBoth), cost2
+            // (AdvanceThis), cost1 (AdvanceOther).
             
-            if (cost1 <= cost2) {
+            if (cost1 < cost2) {
                 if (cost3 <= cost1) {
                     updateValue(m_frameCount, index, AdvanceBoth,
                                 min3, distance);