1 files changed, 5 insertions, 2 deletions
diff --git a/boost/numeric/odeint/stepper/bulirsch_stoer_dense_out.hpp b/boost/numeric/odeint/stepper/bulirsch_stoer_dense_out.hpp
index 6a1eed15fb..22eb373bb8 100644
--- a/boost/numeric/odeint/stepper/bulirsch_stoer_dense_out.hpp
+++ b/boost/numeric/odeint/stepper/bulirsch_stoer_dense_out.hpp
@@ -391,6 +391,11 @@ public:
     }
 
 
+protected:
+
+    time_type m_max_dt;
+
+
 private:
 
     template< class StateInOut , class StateVector >
@@ -667,8 +672,6 @@ private:
     default_error_checker< value_type, algebra_type , operations_type > m_error_checker;
     modified_midpoint_dense_out< state_type , value_type , deriv_type , time_type , algebra_type , operations_type , resizer_type > m_midpoint;
 
-    time_type m_max_dt;
-
     bool m_control_interpolation;
 
     bool m_last_step_rejected;