Index: src/libchcore/RoundingFunctions.h
===================================================================
diff -u -N -r6103ac74583f2136b821dc67515ed8469abd8155 -rcdc76e1a95383dff63a5254aeb8d37035028512c
--- src/libchcore/RoundingFunctions.h	(.../RoundingFunctions.h)	(revision 6103ac74583f2136b821dc67515ed8469abd8155)
+++ src/libchcore/RoundingFunctions.h	(.../RoundingFunctions.h)	(revision cdc76e1a95383dff63a5254aeb8d37035028512c)
@@ -24,6 +24,7 @@
 BEGIN_CHCORE_NAMESPACE
 
 template<class T> T RoundUp(T number, T roundValue) { return ((number + roundValue - 1) & ~(roundValue - 1)); }
+template<class T> T RoundDown(T number, T roundValue) { return (number & ~(roundValue - 1)); }
 
 END_CHCORE_NAMESPACE