diff --git a/Eigen/src/SparseCore/SparseBlock.h b/Eigen/src/SparseCore/SparseBlock.h
index f562b5479..3cbbfb185 100644
--- a/Eigen/src/SparseCore/SparseBlock.h
+++ b/Eigen/src/SparseCore/SparseBlock.h
@@ -607,7 +607,6 @@ struct unary_evaluator<Block<ArgType,BlockRows,BlockCols,InnerPanel>, IteratorBa
 
   protected:
     typedef typename evaluator<ArgType>::InnerIterator        EvalIterator;
-    typedef typename evaluator<ArgType>::ReverseInnerIterator EvalReverseIterator;
     
     typename evaluator<ArgType>::nestedType m_argImpl;
     const XprType &m_block;
@@ -620,7 +619,7 @@ class unary_evaluator<Block<ArgType,BlockRows,BlockCols,InnerPanel>, IteratorBas
   const XprType& m_block;
   Index m_end;
 public:
-
+  
   EIGEN_STRONG_INLINE InnerVectorInnerIterator(const unary_evaluator& aEval, Index outer)
     : EvalIterator(aEval.m_argImpl, outer + (IsRowMajor ? aEval.m_block.startRow() : aEval.m_block.startCol())),
       m_block(aEval.m_block),
diff --git a/Eigen/src/SparseCore/SparseDiagonalProduct.h b/Eigen/src/SparseCore/SparseDiagonalProduct.h
index cf0f77342..fd7fd1c24 100644
--- a/Eigen/src/SparseCore/SparseDiagonalProduct.h
+++ b/Eigen/src/SparseCore/SparseDiagonalProduct.h
@@ -266,24 +266,29 @@ struct sparse_diagonal_product_evaluator<SparseXprType, DiagCoeffType, SDP_AsCwi
   typedef typename evaluator<CwiseProductType>::type CwiseProductEval;
   typedef typename evaluator<CwiseProductType>::InnerIterator CwiseProductIterator;
   
-  class InnerIterator : public CwiseProductIterator
+  class InnerIterator
   {
   public:
     InnerIterator(const sparse_diagonal_product_evaluator &xprEval, Index outer)
-      : CwiseProductIterator(CwiseProductEval(xprEval.m_sparseXprNested.innerVector(outer).cwiseProduct(xprEval.m_diagCoeffNested)),0),
-        m_cwiseEval(xprEval.m_sparseXprNested.innerVector(outer).cwiseProduct(xprEval.m_diagCoeffNested)),
+      : m_cwiseEval(xprEval.m_sparseXprNested.innerVector(outer).cwiseProduct(xprEval.m_diagCoeffNested)),
+        m_cwiseIter(m_cwiseEval, 0),
         m_outer(outer)
-    {
-      ::new (static_cast<CwiseProductIterator*>(this)) CwiseProductIterator(m_cwiseEval,0);
-    }
+    {}
     
+    inline Scalar value() const  { return m_cwiseIter.value(); }
+    inline Index index() const  { return m_cwiseIter.index(); }
     inline Index outer() const  { return m_outer; }
-    inline Index col() const    { return SparseXprType::IsRowMajor ? CwiseProductIterator::index() : m_outer; }
-    inline Index row() const    { return SparseXprType::IsRowMajor ? m_outer : CwiseProductIterator::index(); }
+    inline Index col() const    { return SparseXprType::IsRowMajor ? m_cwiseIter.index() : m_outer; }
+    inline Index row() const    { return SparseXprType::IsRowMajor ? m_outer : m_cwiseIter.index(); }
+    
+    EIGEN_STRONG_INLINE InnerIterator& operator++()
+    { ++m_cwiseIter; return *this; }
+    inline operator bool() const  { return m_cwiseIter; }
     
   protected:
-    Index m_outer;
     CwiseProductEval m_cwiseEval;
+    CwiseProductIterator m_cwiseIter;
+    Index m_outer;
   };
   
   sparse_diagonal_product_evaluator(const SparseXprType &sparseXpr, const DiagCoeffType &diagCoeff)