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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
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