Index: src/libchcore/MathFunctions.cpp
===================================================================
diff -u -N -rd9527df01ee91b35d9a5fdccb80ded25a9c8265f -rc1f7af79a52133c6d4b14944c3370288be7f5af5
--- src/libchcore/MathFunctions.cpp	(.../MathFunctions.cpp)	(revision d9527df01ee91b35d9a5fdccb80ded25a9c8265f)
+++ src/libchcore/MathFunctions.cpp	(.../MathFunctions.cpp)	(revision c1f7af79a52133c6d4b14944c3370288be7f5af5)
@@ -15,6 +15,9 @@
 
 		LIBCHCORE_API double Div64(unsigned long long ullNumber, double dDenominator)
 		{
+			if (dDenominator == 0.0)
+				return 0.0;
+
 			return ullNumber / dDenominator;
 		}
 	}