statistic helper classes

test-cases
modified grid importance for better trap-detection

math/stats/Minimum.h

@@ -0,0 +1,40 @@
+#ifndef STATS_MINIMUM_H
+#define STATS_MINIMUM_H
+
+namespace Stats {
+
+	template <typename Scalar> class Minimum {
+
+	private:
+
+		const Scalar START = +999999999;
+		Scalar curMin;
+
+	public:
+
+		/** ctor */
+		Minimum() : curMin(START) {
+			;
+		}
+
+		/** is a valid minimum available? */
+		inline bool isValid() const {
+			return curMin != START;
+		}
+
+		/** add a new value */
+		void add(const Scalar val) {
+			if (val < curMin) {curMin = val;}
+		}
+
+		/** get the current value */
+		Scalar get() const {
+			Assert::notEqual(curMin, START, "add() values first!");
+			return curMin;
+		}
+
+	};
+
+}
+
+#endif // STATS_MINIMUM_H