From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Wed, 6 Jun 2018 00:57:47 +0000 (+0200)
Subject: Fix instantiations of SymmetricTensor
X-Git-Tag: v9.1.0-rc1~1068^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6719%2Fhead;p=dealii.git

Fix instantiations of SymmetricTensor
---

diff --git a/include/deal.II/base/symmetric_tensor.h b/include/deal.II/base/symmetric_tensor.h
index 6879b34e66..9ac9040c7f 100644
--- a/include/deal.II/base/symmetric_tensor.h
+++ b/include/deal.II/base/symmetric_tensor.h
@@ -578,7 +578,7 @@ public:
    * describe a symmetric tensor. In $d$ space dimensions, this number equals
    * $\frac 12 (d^2+d)$ for symmetric tensors of rank 2.
    */
-  static const unsigned int n_independent_components =
+  static constexpr unsigned int n_independent_components =
     internal::SymmetricTensorAccessors::StorageType<rank_, dim, Number>::
       n_independent_components;
 
diff --git a/source/base/symmetric_tensor.cc b/source/base/symmetric_tensor.cc
index b526983396..bf74f26e32 100644
--- a/source/base/symmetric_tensor.cc
+++ b/source/base/symmetric_tensor.cc
@@ -30,7 +30,8 @@ template <int rank, int dim, typename Number>
 const unsigned int SymmetricTensor<rank, dim, Number>::dimension;
 
 template <int rank, int dim, typename Number>
-const unsigned int SymmetricTensor<rank, dim, Number>::n_independent_components;
+constexpr unsigned int
+  SymmetricTensor<rank, dim, Number>::n_independent_components;
 
 
 // explicit instantiations