From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Thu, 17 Apr 2014 11:58:55 +0000 (+0000)
Subject: Extend friendship more so that we can actually declare Accessor::Reference a friend... 
X-Git-Tag: v8.2.0-rc1~589
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ef704bff27889c74ff9ab4fdb24468ff768ec9c;p=dealii.git

Extend friendship more so that we can actually declare Accessor::Reference a friend of SparseMatrix.

git-svn-id: https://svn.dealii.org/trunk@32788 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 1b3b9e1fc9..f0cf4bf438 100644
--- a/deal.II/include/deal.II/lac/sparse_matrix.h
+++ b/deal.II/include/deal.II/lac/sparse_matrix.h
@@ -301,9 +301,10 @@ namespace SparseMatrixIterators
     friend class Iterator;
 
     /**
-     * Make the inner reference class a friend if the compiler has a bug and
-     * requires this.
+     * Make the SparseMatrix class a friend so that it, in turn, can
+     * declare the Reference class a friend.
      */
+    template <typename> friend class dealii::SparseMatrix;
   };