183 lines
5.7 KiB
C++
183 lines
5.7 KiB
C++
/*
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[auto_generated]
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libs/numeric/odeint/test/runge_kutta_error_concepts.cpp
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[begin_description]
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This file tests the Stepper concepts of odeint with all Runge-Kutta Error steppers.
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It's one of the main tests of odeint.
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[end_description]
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Copyright 2012 Karsten Ahnert
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Copyright 2012-2013 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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// disable checked iterator warning for msvc
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#include <boost/config.hpp>
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#ifdef BOOST_MSVC
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#pragma warning(disable:4996)
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#endif
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#define BOOST_TEST_MODULE odeint_runge_kutta_error_concepts
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#include <vector>
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#include <cmath>
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#include <iostream>
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#include <boost/numeric/odeint/config.hpp>
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#include <boost/array.hpp>
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#include <boost/test/unit_test.hpp>
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#include <boost/ref.hpp>
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#include <boost/bind.hpp>
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#include <boost/utility.hpp>
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#include <boost/type_traits/add_reference.hpp>
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#include <boost/mpl/vector.hpp>
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#include <boost/mpl/for_each.hpp>
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#include <boost/mpl/insert_range.hpp>
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#include <boost/mpl/end.hpp>
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#include <boost/mpl/copy.hpp>
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#include <boost/mpl/placeholders.hpp>
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#include <boost/mpl/inserter.hpp>
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#include <boost/numeric/odeint/stepper/runge_kutta_cash_karp54_classic.hpp>
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#include <boost/numeric/odeint/stepper/runge_kutta_cash_karp54.hpp>
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#include <boost/numeric/odeint/stepper/runge_kutta_dopri5.hpp>
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#include <boost/numeric/odeint/stepper/runge_kutta_fehlberg78.hpp>
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#include "prepare_stepper_testing.hpp"
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#include "dummy_odes.hpp"
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using std::vector;
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using namespace boost::unit_test;
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using namespace boost::numeric::odeint;
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namespace mpl = boost::mpl;
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const double result = 2.4; // four steps total...
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const double eps = 1.0e-14;
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template< class Stepper , class System >
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void check_error_stepper_concept( Stepper &stepper , System system , typename Stepper::state_type &x , typename Stepper::state_type &xerr )
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{
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typedef Stepper stepper_type;
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typedef typename stepper_type::deriv_type container_type;
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typedef typename stepper_type::order_type order_type;
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typedef typename stepper_type::time_type time_type;
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stepper.do_step( system , x , static_cast<time_type>(0.0) , static_cast<time_type>(0.1) );
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stepper.do_step( system , x , static_cast<time_type>(0.0) , static_cast<time_type>(0.1) , xerr );
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}
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// default case is used for vector space types like plain double
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template< class Stepper , typename T >
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struct perform_error_stepper_test
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{
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typedef T vector_space_type;
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void operator()( void ) const
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{
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using std::abs;
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vector_space_type x , xerr;
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x = 2.0;
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Stepper stepper;
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constant_system_functor_vector_space sys;
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#ifndef _MSC_VER
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// dont run this for MSVC due to compiler bug 697006
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check_error_stepper_concept( stepper ,
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constant_system_vector_space< vector_space_type , vector_space_type , typename Stepper::time_type > ,
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x ,
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xerr );
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#else
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check_error_stepper_concept( stepper , boost::cref( sys ) , x , xerr );
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#endif
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check_error_stepper_concept( stepper , boost::cref( sys ) , x , xerr );
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BOOST_CHECK_MESSAGE( (abs( x - result )) < eps , x );
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}
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};
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template< class Stepper , typename T >
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struct perform_error_stepper_test< Stepper , std::vector<T> >
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{
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typedef std::vector<T> vector_type;
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void operator()( void )
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{
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using std::abs;
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vector_type x( 1 , 2.0 ) , xerr( 1 );
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Stepper stepper;
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constant_system_functor_standard sys;
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#ifndef _MSC_VER
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// dont run this for MSVC due to compiler bug 697006
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check_error_stepper_concept( stepper , constant_system_standard< vector_type , vector_type , typename Stepper::time_type > , x , xerr );
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#else
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check_error_stepper_concept( stepper , boost::cref( sys ) , x , xerr );
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#endif
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check_error_stepper_concept( stepper , boost::cref( sys ) , x , xerr );
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BOOST_CHECK( (abs( x[0] - result )) < eps );
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}
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};
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template< class Stepper , typename T >
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struct perform_error_stepper_test< Stepper , boost::array<T,1> >
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{
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typedef boost::array<T,1> array_type;
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void operator()( void )
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{
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using std::abs;
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array_type x , xerr;
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x[0] = 2.0;
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Stepper stepper;
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constant_system_functor_standard sys;
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#ifndef _MSC_VER
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// dont run this for MSVC due to compiler bug 697006
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check_error_stepper_concept( stepper , constant_system_standard< array_type , array_type , typename Stepper::time_type > , x , xerr );
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#else
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check_error_stepper_concept( stepper , boost::cref( sys ) , x , xerr );
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#endif
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check_error_stepper_concept( stepper , boost::cref( sys ) , x , xerr );
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BOOST_CHECK( (abs( x[0] - result )) < eps );
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}
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};
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template< class State > class error_stepper_methods : public mpl::vector<
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runge_kutta_cash_karp54_classic< State , typename detail::extract_value_type<State>::type > ,
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runge_kutta_cash_karp54< State , typename detail::extract_value_type<State>::type > ,
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runge_kutta_dopri5< State , typename detail::extract_value_type<State>::type > ,
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runge_kutta_fehlberg78< State , typename detail::extract_value_type<State>::type >
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> { };
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typedef mpl::copy
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<
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container_types ,
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mpl::inserter
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<
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mpl::vector0<> ,
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mpl::insert_range
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<
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mpl::_1 ,
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mpl::end< mpl::_1 > ,
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error_stepper_methods< mpl::_2 >
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>
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>
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>::type all_error_stepper_methods;
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BOOST_AUTO_TEST_SUITE( runge_kutta_error_concept_test )
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BOOST_AUTO_TEST_CASE_TEMPLATE( error_stepper_test , Stepper , all_error_stepper_methods )
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{
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perform_error_stepper_test< Stepper , typename Stepper::state_type > tester;
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tester();
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}
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BOOST_AUTO_TEST_SUITE_END()
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