diff --git a/libmaxsi/include/libmaxsi/integer.h b/libmaxsi/include/libmaxsi/integer.h
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+++ b/libmaxsi/include/libmaxsi/integer.h
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+/******************************************************************************
+
+	COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2012.
+
+	This file is part of LibMaxsi.
+
+	LibMaxsi is free software: you can redistribute it and/or modify it under
+	the terms of the GNU Lesser General Public License as published by the Free
+	Software Foundation, either version 3 of the License, or (at your option)
+	any later version.
+
+	LibMaxsi 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 Lesser General Public License for
+	more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with LibMaxsi. If not, see <http://www.gnu.org/licenses/>.
+
+	integer.h
+	Functions and utilities related to integers.
+
+******************************************************************************/
+
+#ifndef LIBMAXSI_INTEGER_H
+#define LIBMAXSI_INTEGER_H
+
+namespace Maxsi
+{
+	namespace Error
+	{
+		template <class T> T DivUp(T a, T b)
+		{
+			return a / b + (a % b) ? 1 : 0;
+		}
+
+		template <class R, class A, class B> R (A a, B b)
+		{
+			return DivUp<R>((R) a, (R) b);
+		}
+	}
+}
+
+#endif
+