整理

include/boost/numeric/odeint/iterator/detail/ode_iterator_base.hpp

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+
+/*
+ [auto_generated]
+ boost/numeric/odeint/iterator/detail/ode_iterator_base.hpp
+
+ [begin_description]
+ Base class for const_step_iterator and adaptive_iterator.
+ [end_description]
+
+ Copyright 2012-2013 Karsten Ahnert
+ Copyright 2012-2013 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_ITERATOR_DETAIL_ODE_ITERATOR_BASE_HPP_INCLUDED
+#define BOOST_NUMERIC_ODEINT_ITERATOR_DETAIL_ODE_ITERATOR_BASE_HPP_INCLUDED
+
+#include <boost/iterator/iterator_facade.hpp>
+
+#include <boost/numeric/odeint/util/unwrap_reference.hpp>
+#include <boost/numeric/odeint/util/detail/less_with_sign.hpp>
+
+namespace boost {
+namespace numeric {
+namespace odeint {
+namespace detail {
+
+    struct ode_state_iterator_tag {};
+    struct ode_state_time_iterator_tag {};
+
+    template< class Iterator , class Stepper , class System , class State , typename Tag >
+    class ode_iterator_base;
+
+
+    /* Specialization for the state iterator that has only state_type as its value_type */
+    template< class Iterator , class Stepper , class System , class State >
+    class ode_iterator_base< Iterator , Stepper , System , State , ode_state_iterator_tag >
+        : public boost::iterator_facade
+          <
+              Iterator ,
+              typename traits::state_type< Stepper >::type const ,
+              boost::single_pass_traversal_tag
+          >
+    {
+    private:
+
+        typedef Stepper stepper_type;
+        typedef System system_type;
+        typedef typename boost::numeric::odeint::unwrap_reference< stepper_type >::type unwrapped_stepper_type;
+        typedef State state_type;
+        typedef typename unwrapped_stepper_type::time_type time_type;
+        typedef typename unwrapped_stepper_type::value_type ode_value_type;
+
+    public:
+   
+        ode_iterator_base( stepper_type stepper , system_type sys , time_type t , time_type dt )
+            : m_stepper( stepper ) , m_system( sys ) ,
+              m_t( t ) , m_dt( dt ) , m_at_end( false )
+        { }
+
+        ode_iterator_base( stepper_type stepper , system_type sys )
+            : m_stepper( stepper ) , m_system( sys ) ,
+              m_t() , m_dt() , m_at_end( true )
+        { }
+
+        // this function is only for testing
+        bool same( const ode_iterator_base &iter ) const
+        {
+            return (
+                //( static_cast<Iterator>(*this).get_state() ==
+                //  static_cast<Iterator>(iter).get_state ) &&
+                ( m_t == iter.m_t ) && 
+                ( m_dt == iter.m_dt ) &&
+                ( m_at_end == iter.m_at_end )
+                );
+        }
+
+
+    protected:
+
+        friend class boost::iterator_core_access;
+
+        bool equal( ode_iterator_base const& other ) const
+        {
+            if( m_at_end == other.m_at_end )
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        const state_type& dereference() const
+        {
+            return static_cast<const Iterator*>(this)->get_state();
+        }
+
+    protected:
+
+        stepper_type m_stepper;
+        system_type m_system;
+        time_type m_t;
+        time_type m_dt;
+        bool m_at_end;
+    };
+
+
+
+    /* Specialization for the state-time iterator that has pair<state_type,time_type> as its value_type */
+
+    template< class Iterator , class Stepper , class System , class State >
+    class ode_iterator_base< Iterator , Stepper , System , State , ode_state_time_iterator_tag >
+        : public boost::iterator_facade
+          <
+              Iterator ,
+              std::pair< const State , const typename traits::time_type< Stepper >::type > ,
+              boost::single_pass_traversal_tag ,
+              std::pair< const State& , const typename traits::time_type< Stepper >::type& >
+          >
+    {
+    private:
+
+        typedef Stepper stepper_type;
+        typedef System system_type;
+        typedef typename boost::numeric::odeint::unwrap_reference< stepper_type >::type unwrapped_stepper_type;
+        typedef State state_type;
+        typedef typename unwrapped_stepper_type::time_type time_type;
+        typedef typename unwrapped_stepper_type::value_type ode_value_type;
+
+    public:
+
+        ode_iterator_base( stepper_type stepper , system_type sys ,
+                           time_type t , time_type dt )
+            : m_stepper( stepper ) , m_system( sys ) ,
+              m_t( t ) , m_dt( dt ) , m_at_end( false )
+        { }
+
+        ode_iterator_base( stepper_type stepper , system_type sys )
+            : m_stepper( stepper ) , m_system( sys ) , m_at_end( true )
+        { }
+
+        bool same( ode_iterator_base const& iter )
+        {
+            return (
+                //( static_cast<Iterator>(*this).get_state() ==
+                //  static_cast<Iterator>(iter).get_state ) &&
+                ( m_t == iter.m_t ) &&
+                ( m_dt == iter.m_dt ) &&
+                ( m_at_end == iter.m_at_end )
+                );
+        }
+
+
+    protected:
+
+        friend class boost::iterator_core_access;
+
+        bool equal( ode_iterator_base const& other ) const
+        {
+            if( m_at_end == other.m_at_end )
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        std::pair< const state_type& , const time_type& > dereference() const
+        {
+            return std::pair< const state_type & , const time_type & >(
+                    static_cast<const Iterator*>(this)->get_state() , m_t );
+        }
+
+        stepper_type m_stepper;
+        system_type m_system;
+        time_type m_t;
+        time_type m_dt;
+        bool m_at_end;
+
+    };
+
+
+
+} // namespace detail
+} // namespace odeint
+} // namespace numeric
+} // namespace boost
+
+
+
+#endif // BOOST_NUMERIC_ODEINT_ITERATOR_DETAIL_ODE_ITERATOR_BASE_HPP_INCLUDED