From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Sun, 20 Jan 2019 16:26:44 +0000 (+0100)
Subject: Fix a conversion from SymmetricTensor to Tensor
X-Git-Tag: v9.1.0-rc1~420^2~2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=230f13fd9f55c8d199508657740ff2bfbb7538c0;p=dealii.git

Fix a conversion from SymmetricTensor to Tensor
---

diff --git a/include/deal.II/base/symmetric_tensor.templates.h b/include/deal.II/base/symmetric_tensor.templates.h
index 7ce41471ee..b5b496379b 100644
--- a/include/deal.II/base/symmetric_tensor.templates.h
+++ b/include/deal.II/base/symmetric_tensor.templates.h
@@ -160,7 +160,8 @@ namespace internal
 
       // Initialize the transformation matrix as the
       // identity tensor
-      Q = dealii::unit_symmetric_tensor<dim, Number>();
+      Q = static_cast<Tensor<2, dim, Number>>(
+        dealii::unit_symmetric_tensor<dim, Number>());
 
       // Make the first row and column to be of the
       // desired form