# HG changeset patch
# User Chris Cannam
# Date 1434022251 -3600
# Node ID edd9c1c769a0583f7f5828358d82bfc5c4cc2a76
# Parent  f5fdc397975a17695a3d3dac27a537a15ad835ea
Fix crash in looking up expand direction, when the entire reference audio has been fed before any performance has (a pathological case)

diff -r f5fdc397975a -r edd9c1c769a0 src/Finder.cpp
--- a/src/Finder.cpp	Thu Apr 23 13:47:48 2015 +0100
+++ b/src/Finder.cpp	Thu Jun 11 12:30:51 2015 +0100
@@ -14,6 +14,9 @@
     COPYING included with this distribution for more information.
 */
 
+//#define DEBUG_FINDER 1
+//#define PERFORM_ERROR_CHECKS 1
+
 #include "Finder.h"
 
 #include "Path.h"
@@ -23,9 +26,6 @@
 
 using namespace std;
 
-//#define DEBUG_FINDER 1
-//#define PERFORM_ERROR_CHECKS 1
-
 Finder::Finder(Matcher *pm)
 {
     m_m = pm;
diff -r f5fdc397975a -r edd9c1c769a0 src/Matcher.cpp
--- a/src/Matcher.cpp	Thu Apr 23 13:47:48 2015 +0100
+++ b/src/Matcher.cpp	Thu Jun 11 12:30:51 2015 +0100
@@ -24,6 +24,7 @@
 using namespace std;
 
 //#define DEBUG_MATCHER 1
+//#define PERFORM_ERROR_CHECKS 1
 
 Matcher::Matcher(Parameters parameters, DistanceMetric::Parameters dparams,
                  Matcher *p) :
@@ -350,15 +351,23 @@
 
         } else if (m_frameCount == 0) { // first row
 
-            updateValue(0, index, AdvanceOther,
-                        getPathCost(0, index-1),
-                        distance);
+            pathcost_t cost {};
+
+            if (isInRange(0, index - 1)) {
+                cost = getPathCost(0, index - 1);
+            }
+            
+            updateValue(0, index, AdvanceOther, cost, distance);
             
         } else if (index == 0) { // first column
 
-            updateValue(m_frameCount, index, AdvanceThis,
-                        getPathCost(m_frameCount - 1, 0),
-                        distance);
+            pathcost_t cost {};
+
+            if (isInRange(m_frameCount - 1, 0)) {
+                cost = getPathCost(m_frameCount - 1, 0);
+            }
+            
+            updateValue(m_frameCount, index, AdvanceThis, cost, distance);
             
         } else if (index == m_otherMatcher->m_frameCount - m_blockSize) {