整理

include/boost/numeric/odeint/stepper/detail/rotating_buffer.hpp

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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 <array>
+
+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