Patch by k3daevin: Add Reference class as a friend of sparse matrix to make

IBM xlC work.

git-svn-id: https://svn.dealii.org/trunk@32787 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/include/deal.II/lac/sparse_matrix.h b/deal.II/include/deal.II/lac/sparse_matrix.h
index 037913ea1d34ea3894ee891884184c12faa95389..1b3b9e1fc9177d193e3ff1ffd71ea7f1f5df1a73 100644 (file)
--- a/deal.II/include/deal.II/lac/sparse_matrix.h
+++ b/deal.II/include/deal.II/lac/sparse_matrix.h
@@ -1656,6 +1656,8 @@ private:
    */
   template <typename,bool> friend class SparseMatrixIterators::Iterator;
   template <typename,bool> friend class SparseMatrixIterators::Accessor;
+
+  template <typename number2> friend class SparseMatrixIterators::Accessor<number2, false>::Reference;
 };
 
 #ifndef DOXYGEN