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+/*
+ [auto_generated]
+ boost/numeric/odeint/stepper/detail/rotating_buffer.hpp
+
+ [begin_description]
+ Implemetation of a rotating (cyclic) buffer for use in the Adam Bashforth stepper
+ [end_description]
+
+ Copyright 2011 Karsten Ahnert
+ Copyright 2011 Mario Mulansky
+
+ Distributed under the Boost Software License, Version 1.0.
+ (See accompanying file LICENSE_1_0.txt or
+ copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+
+#ifndef BOOST_NUMERIC_ODEINT_STEPPER_DETAIL_ROTATING_BUFFER_HPP_INCLUDED
+#define BOOST_NUMERIC_ODEINT_STEPPER_DETAIL_ROTATING_BUFFER_HPP_INCLUDED
+
+#include <boost/array.hpp>
+
+namespace boost {
+namespace numeric {
+namespace odeint {
+namespace detail {
+
+template< class T , size_t N >
+class rotating_buffer
+{
+public:
+
+ typedef T value_type;
+ const static size_t dim = N;
+
+ rotating_buffer( void ) : m_first( 0 )
+ { }
+
+ size_t size( void ) const
+ {
+ return dim;
+ }
+
+ value_type& operator[]( size_t i )
+ {
+ return m_data[ get_index( i ) ];
+ }
+
+ const value_type& operator[]( size_t i ) const
+ {
+ return m_data[ get_index( i ) ];
+ }
+
+ void rotate( void )
+ {
+ if( m_first == 0 )
+ m_first = dim-1;
+ else
+ --m_first;
+ }
+
+protected:
+
+ value_type m_data[N];
+
+private:
+
+ size_t get_index( size_t i ) const
+ {
+ return ( ( i + m_first ) % dim );
+ }
+
+ size_t m_first;
+
+};
+
+
+} // detail
+} // odeint
+} // numeric
+} // boost
+
+
+#endif // BOOST_NUMERIC_ODEINT_STEPPER_DETAIL_ROTATING_BUFFER_HPP_INCLUDED