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