# HG changeset patch
# User Chris Cannam
# Date 1409740959 -3600
# Node ID 312b92ffb04e258b3329a1d3c5d7eacc10534141
# Parent  f84f1828420b255452bb0de000be8aa915130450
Fix potential divide by zero

diff -r f84f1828420b -r 312b92ffb04e layer/SliceLayer.cpp
--- a/layer/SliceLayer.cpp	Wed Sep 03 11:41:58 2014 +0100
+++ b/layer/SliceLayer.cpp	Wed Sep 03 11:42:39 2014 +0100
@@ -396,7 +396,9 @@
 
     float max = 0.f;
     for (int bin = 0; bin < mh; ++bin) {
-        if (m_samplingMode == SampleMean) m_values[bin] /= divisor;
+        if (m_samplingMode == SampleMean && divisor > 0) {
+            m_values[bin] /= divisor;
+        }
         if (m_values[bin] > max) max = m_values[bin];
     }
     if (max != 0.f && m_normalize) {