1 files changed, 13 insertions, 7 deletions
diff --git a/src/vZ/Simple.hpp b/src/vZ/Simple.hpp
index 706b52c..103357e 100644
--- a/src/vZ/Simple.hpp
+++ b/src/vZ/Simple.hpp
@@ -27,22 +27,20 @@ namespace vZ
 {
   // Base class for non-adaptive RK-style algorithms
   template <typename T>
-  class GenericSimpleIntegrator : public GenericIntegrator<T>
+  class GenericSimpleIntegrator : public GenericRKIntegrator<T>
   {
-  protected:
-    // Coefficients in the tableau representation of the RK algorithm
-    typedef std::vector<std::vector<T> > ACoefficients;
-    typedef std::vector<T>               BCoefficients;
-
   public:
     typedef typename GenericIntegrator<T>::Function Function;
 
+  protected:
+    typedef typename GenericRKIntegrator<T>::ACoefficients ACoefficients;
+    typedef typename GenericRKIntegrator<T>::BCoefficients BCoefficients;
+
     GenericSimpleIntegrator(Function f, T dt,
                             ACoefficients a, BCoefficients b)
       : GenericIntegrator<T>(f, dt), m_a(a), m_b(b) { }
     virtual ~GenericSimpleIntegrator() { }
 
-  protected:
     virtual void step(T& t, T& dt);
 
   private:
@@ -52,6 +50,14 @@ namespace vZ
 
   // Type alias
   typedef GenericSimpleIntegrator<double> SimpleIntegrator;
+
+  // Implementations
+
+  template <typename T>
+  void
+  GenericSimpleIntegrator<T>::step(T& t, T& dt)
+  {
+  }
 }
 
 #endif // VZ_SIMPLE_HPP