3 boost/numeric/odeint/stepper/generation/make_controlled.hpp
6 Factory function to simplify the creation of controlled steppers from error steppers.
9 Copyright 2011-2012 Karsten Ahnert
10 Copyright 2011-2012 Mario Mulansky
12 Distributed under the Boost Software License, Version 1.0.
13 (See accompanying file LICENSE_1_0.txt or
14 copy at http://www.boost.org/LICENSE_1_0.txt)
18 #ifndef BOOST_NUMERIC_ODEINT_STEPPER_GENERATION_MAKE_CONTROLLED_HPP_INCLUDED
19 #define BOOST_NUMERIC_ODEINT_STEPPER_GENERATION_MAKE_CONTROLLED_HPP_INCLUDED
30 // default template for the controller
31 template< class Stepper > struct get_controller { };
35 // default controller factory
36 template< class Stepper , class Controller >
37 struct controller_factory
39 Controller operator()(
40 typename Stepper::value_type abs_error ,
41 typename Stepper::value_type rel_error ,
42 const Stepper &stepper )
44 return Controller( abs_error , rel_error , stepper );
47 Controller operator()(
48 typename Stepper::value_type abs_error ,
49 typename Stepper::value_type rel_error ,
50 typename Stepper::time_type max_dt ,
51 const Stepper &stepper )
53 return Controller( abs_error , rel_error , max_dt, stepper );
62 template< class Stepper >
63 struct make_controlled
65 typedef typename get_controller< Stepper >::type type;
70 template< class Stepper >
71 typename result_of::make_controlled< Stepper >::type make_controlled(
72 typename Stepper::value_type abs_error ,
73 typename Stepper::value_type rel_error ,
74 const Stepper & stepper = Stepper() )
76 typedef Stepper stepper_type;
77 typedef typename result_of::make_controlled< stepper_type >::type controller_type;
78 typedef controller_factory< stepper_type , controller_type > factory_type;
80 return factory( abs_error , rel_error , stepper );
84 template< class Stepper >
85 typename result_of::make_controlled< Stepper >::type make_controlled(
86 typename Stepper::value_type abs_error ,
87 typename Stepper::value_type rel_error ,
88 typename Stepper::time_type max_dt ,
89 const Stepper & stepper = Stepper() )
91 typedef Stepper stepper_type;
92 typedef typename result_of::make_controlled< stepper_type >::type controller_type;
93 typedef controller_factory< stepper_type , controller_type > factory_type;
95 return factory( abs_error , rel_error , max_dt, stepper );
103 #endif // BOOST_NUMERIC_ODEINT_STEPPER_GENERATION_MAKE_CONTROLLED_HPP_INCLUDED