From: Jean-Paul Pelteret <jppelteret@gmail.com>
Date: Fri, 2 Feb 2018 05:51:04 +0000 (+0100)
Subject: Add operator assigning a scalar to a Tensor<0>.
X-Git-Tag: v9.0.0-rc1~481^2~2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2263ac72b63a99089a3adcd55cde5172c1fce1a8;p=dealii.git

Add operator assigning a scalar to a Tensor<0>.
---

diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index 7dd5ee19e2..3664211322 100644
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -205,6 +205,13 @@ public:
   template <typename OtherNumber>
   Tensor<0,dim,Number> &operator = (const Tensor<0,dim,OtherNumber> &rhs);
 
+  /**
+   * This operator assigns a scalar to a tensor. This obviously requires
+   * that the @p OtherNumber type is convertible to @p Number.
+   */
+  template <typename OtherNumber>
+  Tensor<0,dim,Number> &operator = (const OtherNumber &d);
+
   /**
    * Test for equality of two tensors.
    */
@@ -797,6 +804,16 @@ Tensor<0,dim,Number> &Tensor<0,dim,Number>::operator = (const Tensor<0,dim,Other
 }
 
 
+template <int dim, typename Number>
+template <typename OtherNumber>
+inline
+Tensor<0,dim,Number> &Tensor<0,dim,Number>::operator = (const OtherNumber &d)
+{
+  value = internal::NumberType<Number>::value(d);
+  return *this;
+}
+
+
 template <int dim, typename Number>
 template <typename OtherNumber>
 inline