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diff --git a/src/3rdparty/adaptagrams/libcola/pseudorandom.h b/src/3rdparty/adaptagrams/libcola/pseudorandom.h
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+/*
+ * vim: ts=4 sw=4 et tw=0 wm=0
+ *
+ * libcola - A library providing force-directed network layout using the 
+ *           stress-majorization method subject to separation constraints.
+ *
+ * Copyright (C) 2015  Monash University
+ *
+ * This library 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 2.1 of the License, or (at your option) any later version.
+ * See the file LICENSE.LGPL distributed with the library.
+ *
+ * This library 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.
+ *
+ * Author(s):  Tim Dwyer
+*/
+
+#ifndef COLA_PSEUDORANDOM_H
+#define COLA_PSEUDORANDOM_H
+
+namespace cola {
+
+class PseudoRandom 
+{
+public:
+    PseudoRandom(double s = 1);
+
+    double getNext(void);
+    double getNextBetween(double min, double max);
+
+private:
+    int a;
+    int c;
+    unsigned int m;
+    double range;
+    unsigned int seed;
+};
+     
+}
+#endif // COLA_PSEUDORANDOM_H