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Diffstat (limited to 'src/boost/libs/numeric/odeint/test/adams_moulton.cpp')
-rw-r--r-- | src/boost/libs/numeric/odeint/test/adams_moulton.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/boost/libs/numeric/odeint/test/adams_moulton.cpp b/src/boost/libs/numeric/odeint/test/adams_moulton.cpp new file mode 100644 index 00000000..faccdda5 --- /dev/null +++ b/src/boost/libs/numeric/odeint/test/adams_moulton.cpp @@ -0,0 +1,104 @@ +/* + [auto_generated] + libs/numeric/odeint/test/adams_moulton.cpp + + [begin_description] + This file tests the use of the Adams-Moulton stepper. + [end_description] + + Copyright 2011-2012 Karsten Ahnert + Copyright 2011-2012 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) + */ + + +#define BOOST_TEST_MODULE odeint_adams_moulton + +#include <utility> + +#include <boost/array.hpp> + +#include <boost/test/unit_test.hpp> + +#include <boost/mpl/list.hpp> +#include <boost/mpl/size_t.hpp> +#include <boost/mpl/range_c.hpp> + + +#include <boost/numeric/odeint/stepper/detail/adams_moulton_coefficients.hpp> +#include <boost/numeric/odeint/stepper/detail/rotating_buffer.hpp> +#include <boost/numeric/odeint/stepper/adams_moulton.hpp> + +using namespace boost::unit_test; +using namespace boost::numeric::odeint; + +typedef double value_type; + +struct lorenz +{ + template< class State , class Deriv , class Value > + void operator()( const State &_x , Deriv &_dxdt , const Value &dt ) const + { + const value_type sigma = 10.0; + const value_type R = 28.0; + const value_type b = 8.0 / 3.0; + + typename boost::range_iterator< const State >::type x = boost::begin( _x ); + typename boost::range_iterator< Deriv >::type dxdt = boost::begin( _dxdt ); + + dxdt[0] = sigma * ( x[1] - x[0] ); + dxdt[1] = R * x[0] - x[1] - x[0] * x[2]; + dxdt[2] = x[0]*x[1] - b * x[2]; + } +}; + +BOOST_AUTO_TEST_SUITE( adams_moulton_test ) + +BOOST_AUTO_TEST_CASE( test_adams_moulton_coefficients ) +{ + detail::adams_moulton_coefficients< value_type , 1 > c1; + detail::adams_moulton_coefficients< value_type , 2 > c2; + detail::adams_moulton_coefficients< value_type , 3 > c3; + detail::adams_moulton_coefficients< value_type , 4 > c4; + detail::adams_moulton_coefficients< value_type , 5 > c5; + detail::adams_moulton_coefficients< value_type , 6 > c6; + detail::adams_moulton_coefficients< value_type , 7 > c7; + detail::adams_moulton_coefficients< value_type , 8 > c8; +} + +typedef boost::mpl::range_c< size_t , 1 , 6 > vector_of_steps; + +BOOST_AUTO_TEST_CASE_TEMPLATE( test_init_and_steps , step_type , vector_of_steps ) +{ + const static size_t steps = step_type::value; + typedef boost::array< value_type , 3 > state_type; + + adams_moulton< steps , state_type > stepper; +// state_type x = {{ 10.0 , 10.0 , 10.0 }}; +// const value_type dt = 0.01; +// value_type t = 0.0; + +// stepper.do_step( lorenz() , x , t , dt ); +} + +BOOST_AUTO_TEST_CASE( test_instantiation ) +{ + typedef boost::array< double , 3 > state_type; + adams_moulton< 1 , state_type > s1; + adams_moulton< 2 , state_type > s2; + adams_moulton< 3 , state_type > s3; + adams_moulton< 4 , state_type > s4; + adams_moulton< 5 , state_type > s5; + adams_moulton< 6 , state_type > s6; + adams_moulton< 7 , state_type > s7; + adams_moulton< 8 , state_type > s8; + +// state_type x = {{ 10.0 , 10.0 , 10.0 }}; +// value_type t = 0.0 , dt = 0.01; +} + + +BOOST_AUTO_TEST_SUITE_END() |