diff --git a/src/core/math_func.hpp b/src/core/math_func.hpp
--- a/src/core/math_func.hpp
+++ b/src/core/math_func.hpp
@@ -18,6 +18,12 @@
 #endif
 
 /**
+ * The largest value that can be entered in a variable
+ * @param type the type of the variable
+ */
+#define MAX_UVALUE(type) ((type)~(type)0)
+
+/**
  * Returns the maximum of two values.
  *
  * This function returns the greater value of two given values.