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