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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
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