Add ProductType description also for SymmetricTensor.

diff --git a/include/deal.II/base/symmetric_tensor.h b/include/deal.II/base/symmetric_tensor.h
index 0b42c16f3d3b7ee4ca278d3f994e196b32617726..cb6179434e86cc655028726d8fcca09d0e130620 100644 (file)
--- a/include/deal.II/base/symmetric_tensor.h
+++ b/include/deal.II/base/symmetric_tensor.h
@@ -2703,6 +2703,24 @@ operator * (const Number                            factor,
 }
 
 
+#ifndef DEAL_II_WITH_CXX11
+
+template <typename T, typename U, int rank, int dim>
+struct ProductType<T,SymmetricTensor<rank,dim,U> >
+{
+  typedef SymmetricTensor<rank,dim,typename ProductType<T,U>::type> type;
+};
+
+template <typename T, typename U, int rank, int dim>
+struct ProductType<SymmetricTensor<rank,dim,T>,U>
+{
+  typedef SymmetricTensor<rank,dim,typename ProductType<T,U>::type> type;
+};
+
+#endif
+
+
+
 /**
  * Multiplication of a symmetric tensor with a scalar number from the right.
  *