namespace boost {
  namespace numeric {
    namespace odeint {
      template<typename Stepper, typename System, typename State,
               typename TimeIterator, typename Time, typename Observer,
               typename StepOverflowChecker>
        size_t integrate_times(Stepper stepper, System system,
                               State & start_state, TimeIterator times_start,
                               TimeIterator times_end, Time dt,
                               Observer observer,
                               StepOverflowChecker checker);
      // Solves the forwarding problem, can be called with Boost.Range as start_state. 
      template<typename Stepper, typename System, typename State,
               typename TimeIterator, typename Time, typename Observer,
               typename StepOverflowChecker>
        size_t integrate_times(Stepper stepper, System system,
                               const State & start_state,
                               TimeIterator times_start,
                               TimeIterator times_end, Time dt,
                               Observer observer,
                               StepOverflowChecker checker);
      // The same function as above, but with the observation times given as range. 
      template<typename Stepper, typename System, typename State,
               typename TimeRange, typename Time, typename Observer,
               typename StepOverflowChecker>
        size_t integrate_times(Stepper stepper, System system,
                               State & start_state, const TimeRange & times,
                               Time dt, Observer observer,
                               StepOverflowChecker checker);
      // Solves the forwarding problem, can be called with Boost.Range as start_state. 
      template<typename Stepper, typename System, typename State,
               typename TimeRange, typename Time, typename Observer,
               typename StepOverflowChecker>
        size_t integrate_times(Stepper stepper, System system,
                               const State & start_state,
                               const TimeRange & times, Time dt,
                               Observer observer,
                               StepOverflowChecker checker);
      template<typename Stepper, typename System, typename State,
               typename TimeIterator, typename Time, typename Observer>
        size_t integrate_times(Stepper, System, State &, TimeIterator,
                               TimeIterator, Time, Observer);
      // Solves the forwarding problem, can be called with Boost.Range as start_state. 
      template<typename Stepper, typename System, typename State,
               typename TimeIterator, typename Time, typename Observer>
        size_t integrate_times(Stepper stepper, System system,
                               const State & start_state,
                               TimeIterator times_start,
                               TimeIterator times_end, Time dt,
                               Observer observer);
      // The same function as above, but with the observation times given as range. 
      template<typename Stepper, typename System, typename State,
               typename TimeRange, typename Time, typename Observer>
        size_t integrate_times(Stepper stepper, System system,
                               State & start_state, const TimeRange & times,
                               Time dt, Observer observer);
      // Solves the forwarding problem, can be called with Boost.Range as start_state. 
      template<typename Stepper, typename System, typename State,
               typename TimeRange, typename Time, typename Observer>
        size_t integrate_times(Stepper stepper, System system,
                               const State & start_state,
                               const TimeRange & times, Time dt,
                               Observer observer);
    }
  }
}