Chris@16: /*
Chris@16:  [auto_generated]
Chris@16:  boost/numeric/odeint/util/state_wrapper.hpp
Chris@16: 
Chris@16:  [begin_description]
Chris@16:  State wrapper for the state type in all stepper. The state wrappers are responsible for construction,
Chris@16:  destruction, copying construction, assignment and resizing.
Chris@16:  [end_description]
Chris@16: 
Chris@101:  Copyright 2011-2013 Karsten Ahnert
Chris@101:  Copyright 2011 Mario Mulansky
Chris@16: 
Chris@16:  Distributed under the Boost Software License, Version 1.0.
Chris@16:  (See accompanying file LICENSE_1_0.txt or
Chris@16:  copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: 
Chris@16: 
Chris@16: #ifndef BOOST_NUMERIC_ODEINT_UTIL_RESIZE_HPP_INCLUDED
Chris@16: #define BOOST_NUMERIC_ODEINT_UTIL_RESIZE_HPP_INCLUDED
Chris@16: 
Chris@16: #include <boost/range.hpp>
Chris@16: 
Chris@16: #include <boost/utility/enable_if.hpp>
Chris@16: #include <boost/fusion/include/is_sequence.hpp>
Chris@16: #include <boost/fusion/include/zip_view.hpp>
Chris@16: #include <boost/fusion/include/vector.hpp>
Chris@16: #include <boost/fusion/include/make_fused.hpp>
Chris@16: #include <boost/fusion/include/for_each.hpp>
Chris@16: 
Chris@16: #include <boost/numeric/odeint/util/is_resizeable.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace numeric {
Chris@16: namespace odeint {
Chris@16: 
Chris@101: 
Chris@101: template< class StateOut , class StateIn , class Enabler = void >
Chris@101: struct resize_impl_sfinae
Chris@101: {
Chris@101:     static void resize( StateOut &x1 , const StateIn &x2 )
Chris@101:     {
Chris@101:         x1.resize( boost::size( x2 ) );
Chris@101:     }
Chris@101: };
Chris@101: 
Chris@16: // resize function
Chris@16: // standard implementation relies on boost.range and resize member function
Chris@101: template< class StateOut , class StateIn >
Chris@16: struct resize_impl
Chris@16: {
Chris@16:     static void resize( StateOut &x1 , const StateIn &x2 )
Chris@16:     {
Chris@101:         resize_impl_sfinae< StateOut , StateIn >::resize( x1 , x2 );
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: // do not overload or specialize this function, specialize resize_impl<> instead
Chris@16: template< class StateOut , class StateIn >
Chris@16: void resize( StateOut &x1 , const StateIn &x2 )
Chris@16: {
Chris@16:     resize_impl< StateOut , StateIn >::resize( x1 , x2 );
Chris@16: }
Chris@16: 
Chris@16: 
Chris@16: namespace detail {
Chris@16: 
Chris@16:     struct resizer
Chris@16:     {
Chris@16:         typedef void result_type;
Chris@16: 
Chris@16:         template< class StateOut , class StateIn >
Chris@16:         void operator()( StateOut &x1 , const StateIn &x2 ) const
Chris@16:         {
Chris@16:             resize_op( x1 , x2 , typename is_resizeable< StateOut >::type() );
Chris@16:         }
Chris@16: 
Chris@16:         template< class StateOut , class StateIn >
Chris@16:         void resize_op( StateOut &x1 , const StateIn &x2 , boost::true_type ) const
Chris@16:         {
Chris@16:             resize( x1 , x2 );
Chris@16:         }
Chris@16: 
Chris@16:         template< class StateOut , class StateIn >
Chris@16:         void resize_op( StateOut &x1 , const StateIn &x2 , boost::false_type ) const
Chris@16:         {
Chris@16:         }
Chris@16: 
Chris@16:     };
Chris@16: } // namespace detail
Chris@16: 
Chris@16: 
Chris@16: /*
Chris@16:  * specialization for fusion sequences
Chris@16:  */
Chris@16: template< class FusionSeq >
Chris@101: struct resize_impl_sfinae< FusionSeq , FusionSeq ,
Chris@101:     typename boost::enable_if< typename boost::fusion::traits::is_sequence< FusionSeq >::type >::type >
Chris@16: {
Chris@16:     static void resize( FusionSeq &x1 , const FusionSeq &x2 )
Chris@16:     {
Chris@16:         typedef boost::fusion::vector< FusionSeq& , const FusionSeq& > Sequences;
Chris@16:         Sequences sequences( x1 , x2 );
Chris@16:         boost::fusion::for_each( boost::fusion::zip_view< Sequences >( sequences ) , boost::fusion::make_fused( detail::resizer() ) );
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: }
Chris@16: }
Chris@16: }
Chris@16: 
Chris@16: 
Chris@16: 
Chris@16: #endif // BOOST_NUMERIC_ODEINT_UTIL_RESIZE_HPP_INCLUDED