utils/math: added abs/min/max as static template functions

1 files changed, 69 insertions, 0 deletions

diff --git a/src/utils/math.hpp b/src/utils/math.hpp
new file mode 100644
index 00000000..d49ff18c
--- /dev/null
+++ b/src/utils/math.hpp
@@ -0,0 +1,69 @@
+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ */
+
+#ifndef MATH_HPP
+#define MATH_HPP
+
+namespace usdx
+{
+	class Math
+	{
+	public:
+		template <class T>
+		static const T min(const T a, const T b)
+		{
+			if (a < b)
+				return a;
+			return b;
+		}
+
+		template <class T>
+		static const T max(const T a, const T b)
+		{
+			if (a > b)
+				return a;
+			return b;
+		}
+
+		template <class T>
+		static const T abs(const T value)
+		{
+			if (value < 0)
+				return -value;
+			return value;
+		}
+
+	private:
+		/**
+		 * private constructor to ensure, that this class never gets
+		   instanciated
+		 */
+		Math() {};
+	};
+};
+
+
+#endif