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diff --git a/sc/source/core/tool/random.cxx b/sc/source/core/tool/random.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Contributor(s):
+ *   Copyright (C) 2012 Tino Kluge <tino.kluge@hrz.tu-chemnitz.de>
+ *
+ */
+
+#include <boost/random.hpp>
+
+// this is nothing but a simple wrapper around
+// the boost random generators
+
+namespace sc
+{
+namespace rng
+{
+
+// underlying random number generator
+// boost::mt19937 implements the Mersenne twister algorithm which
+// is fast and has good statistical properties, it produces integers
+// in the range of [0, 2^32-1] internally
+// memory requirement: 625*sizeof(uint32_t)
+// http://en.wikipedia.org/wiki/Mersenne_twister
+#define BOOST_RNG_ALGO  boost::mt19937
+BOOST_RNG_ALGO global_rng;
+
+// initialises the state of the global random number generator
+// should only be called once at the start of the main programme
+// (note, a few boost::variate_generator<> (like normal) have their
+// own state which would need a reset as well to guarantee identical
+// sequence of numbers, e.g. via myrand.distribution().reset())
+void seed(int i)
+{
+    global_rng.seed(i);
+}
+
+// uniform [0,1) or [a,b) distribution
+double uniform()
+{
+    static boost::uniform_01<BOOST_RNG_ALGO&> myrand(global_rng);
+    return myrand();
+}
+
+} // namespace
+} // namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */