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diff --git a/boost/numeric/odeint/iterator/integrate/detail/integrate_n_steps.hpp b/boost/numeric/odeint/iterator/integrate/detail/integrate_n_steps.hpp
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+/*
+ [auto_generated]
+ boost/numeric/odeint/integrate/detail/integrate_n_steps.hpp
+
+ [begin_description]
+ integrate steps implementation
+ [end_description]
+
+ Copyright 2009-2012 Karsten Ahnert
+ Copyright 2009-2012 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)
+ */
+
+#ifndef BOOST_NUMERIC_ODEINT_INTEGRATE_DETAIL_INTEGRATE_N_STEPS_HPP_INCLUDED
+#define BOOST_NUMERIC_ODEINT_INTEGRATE_DETAIL_INTEGRATE_N_STEPS_HPP_INCLUDED
+
+#include <boost/numeric/odeint/util/unwrap_reference.hpp>
+#include <boost/numeric/odeint/stepper/stepper_categories.hpp>
+#include <boost/numeric/odeint/iterator/integrate/detail/integrate_adaptive.hpp>
+#include <boost/numeric/odeint/iterator/integrate/detail/functors.hpp>
+#include <boost/numeric/odeint/iterator/n_step_time_iterator.hpp>
+#include <boost/numeric/odeint/util/unit_helper.hpp>
+
+#include <boost/numeric/odeint/util/detail/less_with_sign.hpp>
+
+namespace boost {
+namespace numeric {
+namespace odeint {
+namespace detail {
+
+// forward declaration
+template< class Stepper , class System , class State , class Time , class Observer >
+size_t integrate_adaptive(
+        Stepper stepper , System system , State &start_state ,
+        Time &start_time , Time end_time , Time &dt ,
+        Observer observer , controlled_stepper_tag
+);
+
+
+/* basic version */
+template< class Stepper , class System , class State , class Time , class Observer>
+Time integrate_n_steps(
+        Stepper stepper , System system , State &start_state ,
+        Time start_time , Time dt , size_t num_of_steps ,
+        Observer observer , stepper_tag )
+{
+    // ToDo: is there a better way to extract the final time?
+    Time t;
+    boost::for_each( make_n_step_time_range( stepper , system , start_state ,
+                                             start_time , dt , num_of_steps ) ,
+                     obs_caller_time< Observer , Time >( t , observer ) );
+    return t;
+}
+
+
+/* controlled version */
+template< class Stepper , class System , class State , class Time , class Observer>
+Time integrate_n_steps(
+        Stepper stepper , System system , State &start_state ,
+        Time start_time , Time dt , size_t num_of_steps ,
+        Observer observer , controlled_stepper_tag )
+{
+    typename odeint::unwrap_reference< Observer >::type &obs = observer;
+
+    Time time = start_time;
+    Time time_step = dt;
+
+    for( size_t step = 0; step < num_of_steps ; ++step )
+    {
+        obs( start_state , time );
+        detail::integrate_adaptive( stepper , system , start_state , time , static_cast<Time>(time+time_step) , dt ,
+                null_observer() , controlled_stepper_tag() );
+        // direct computation of the time avoids error propagation happening when using time += dt
+        // we need clumsy type analysis to get boost units working here
+        time = start_time + static_cast< typename unit_value_type<Time>::type >(step+1) * time_step;
+    }
+    obs( start_state , time );
+
+    return time;
+}
+
+
+/* dense output version */
+template< class Stepper , class System , class State , class Time , class Observer>
+Time integrate_n_steps(
+        Stepper stepper , System system , State &start_state ,
+        Time start_time , Time dt , size_t num_of_steps ,
+        Observer observer , dense_output_stepper_tag )
+{
+    // ToDo: is there a better way to extract the final time?
+    Time t;
+    boost::for_each( make_n_step_time_range( stepper , system , start_state ,
+                                             start_time , dt , num_of_steps ) ,
+                     obs_caller_time< Observer , Time >( t , observer ) );
+    return t;
+}
+
+
+}
+}
+}
+}
+
+#endif /* BOOST_NUMERIC_ODEINT_INTEGRATE_DETAIL_INTEGRATE_N_STEPS_HPP_INCLUDED */