diff -r d5faf7afaafd -r 9ce95e16f9f9 src/core/math_func.hpp
--- a/src/core/math_func.hpp	Sun Nov 25 20:20:16 2007 +0000
+++ b/src/core/math_func.hpp	Mon Nov 26 16:01:29 2007 +0000
@@ -175,7 +175,7 @@
  * @param b The second scalar
  * @return The absolute difference between the given scalars
  */
-template <typename T> static inline T delta(const T a, const T b) {
+template <typename T> static inline T Delta(const T a, const T b) {
 	return (a < b) ? b - a : a - b;
 }