Merge commit '4ebe6417a5fce5f0994fc0c31bebf732be96a07c' as 'boost'

boost/libs/numeric/odeint/examples/bind_member_functions.cpp

@@ -0,0 +1,126 @@
+/*
+ [auto_generated]
+ libs/numeric/odeint/examples/bind_member_functions.hpp
+
+ [begin_description]
+ tba.
+ [end_description]
+
+ Copyright 2012 Karsten Ahnert
+ Copyright 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)
+ */
+
+#include <iostream>
+
+#include <boost/numeric/odeint.hpp>
+
+namespace odeint = boost::numeric::odeint;
+
+typedef boost::array< double , 3 > state_type;
+
+//[ ode_wrapper
+template< class Obj , class Mem >
+class ode_wrapper
+{
+    Obj m_obj;
+    Mem m_mem;
+
+public:
+
+    ode_wrapper( Obj obj , Mem mem ) : m_obj( obj ) , m_mem( mem ) { }
+
+    template< class State , class Deriv , class Time >
+    void operator()( const State &x , Deriv &dxdt , Time t )
+    {
+        (m_obj.*m_mem)( x , dxdt , t );
+    }
+};
+
+template< class Obj , class Mem >
+ode_wrapper< Obj , Mem > make_ode_wrapper( Obj obj , Mem mem )
+{
+    return ode_wrapper< Obj , Mem >( obj , mem );
+}
+//]
+
+
+template< class Obj , class Mem >
+class observer_wrapper
+{
+    Obj m_obj;
+    Mem m_mem;
+
+public:
+
+    observer_wrapper( Obj obj , Mem mem ) : m_obj( obj ) , m_mem( mem ) { }
+
+    template< class State , class Time >
+    void operator()( const State &x , Time t )
+    {
+        (m_obj.*m_mem)( x , t );
+    }
+};
+
+template< class Obj , class Mem >
+observer_wrapper< Obj , Mem > make_observer_wrapper( Obj obj , Mem mem )
+{
+    return observer_wrapper< Obj , Mem >( obj , mem );
+}
+
+
+
+//[ bind_member_function
+struct lorenz
+{
+    void ode( const state_type &x , state_type &dxdt , double t ) const
+    {
+        dxdt[0] = 10.0 * ( x[1] - x[0] );
+        dxdt[1] = 28.0 * x[0] - x[1] - x[0] * x[2];
+        dxdt[2] = -8.0 / 3.0 * x[2] + x[0] * x[1];
+    }
+};
+
+int main( int argc , char *argv[] )
+{
+    using namespace boost::numeric::odeint;
+    state_type x = {{ 10.0 , 10.0 , 10.0 }};
+    integrate_const( runge_kutta4< state_type >() , make_ode_wrapper( lorenz() , &lorenz::ode ) ,
+                     x , 0.0 , 10.0 , 0.01 );
+    return 0;
+}
+//]
+
+
+/*
+struct lorenz
+{
+    void ode( const state_type &x , state_type &dxdt , double t ) const
+    {
+        dxdt[0] = 10.0 * ( x[1] - x[0] );
+        dxdt[1] = 28.0 * x[0] - x[1] - x[0] * x[2];
+        dxdt[2] = -8.0 / 3.0 * x[2] + x[0] * x[1];
+    }
+
+    void obs( const state_type &x , double t ) const
+    {
+        std::cout << t << " " << x[0] << " " << x[1] << " " << x[2] << "\n";
+    }
+};
+
+int main( int argc , char *argv[] )
+{
+    using namespace boost::numeric::odeint;
+
+    state_type x = {{ 10.0 , 10.0 , 10.0 }};
+    integrate_const( runge_kutta4< state_type >() ,
+                     make_ode_wrapper( lorenz() , &lorenz::ode ) ,
+                     x , 0.0 , 10.0 , 0.01 ,
+                     make_observer_wrapper( lorenz() , &lorenz::obs ) );
+
+    return 0;
+}
+*/