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diff --git a/chaos/src/chaos_base.hpp b/chaos/src/chaos_base.hpp
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+// 
+//  
+//  chaos~
+//  Copyright (C) 2004, 2006  Tim Blechmann
+//  
+//  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., 59 Temple Place - Suite 330,
+//  Boston, MA 02111-1307, USA.
+
+#ifndef __chaos_base_hpp
+
+#include "chaos.hpp"
+#include <map>
+
+template <int dimensions>
+class chaos_base
+{
+public:
+	chaos_base()
+	{
+	}
+
+	inline t_sample get_data(unsigned int i)
+	{
+        assert(i<dimensions);
+		return (t_sample)m_data[i]; /* this is not save, but fast */
+	}
+
+	inline int get_num_eq() const
+	{
+		return dimensions;
+	}
+
+//	inline void m_perform()
+//	{
+//		m_step();
+//		m_bash_denormals();
+//		m_verify();
+//	}
+
+ 	std::map<const t_symbol*,int> attr_ind;
+	
+	// check the integrity of the system
+	inline void m_verify() 
+	{
+	}
+	
+	inline void m_bash_denormals()
+	{
+		for (int i = 0; i != dimensions; ++i)
+		{
+#ifndef DOUBLE_PRECISION
+			if (PD_BIGORSMALL(m_data[i]))
+				m_data[i] = 0;
+#endif
+		}
+	};
+	
+	data_t m_data[dimensions];  // state of the system
+
+protected:
+//	void m_step() = 0;            // iteration
+ 	flext::AtomList Parameter;    // parameter
+ 	flext::AtomList System;       // system
+};
+
+#define __chaos_base_hpp
+#endif /* __chaos_base_hpp */