From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Fri, 4 May 2018 16:36:22 +0000 (+0200)
Subject: Restrict memset to trivial types in SparseMatrix
X-Git-Tag: v9.0.0-rc1~13^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F6451%2Fhead;p=dealii.git

Restrict memset to trivial types in SparseMatrix
---

diff --git a/include/deal.II/lac/sparse_matrix.templates.h b/include/deal.II/lac/sparse_matrix.templates.h
index 10832ee663..70c7fb191e 100644
--- a/include/deal.II/lac/sparse_matrix.templates.h
+++ b/include/deal.II/lac/sparse_matrix.templates.h
@@ -171,12 +171,22 @@ namespace internal
     typedef types::global_dof_index size_type;
 
     template <typename T>
-    void zero_subrange (const size_type begin,
-                        const size_type end,
-                        T *dst)
+    typename std::enable_if<std::is_trivial<T>::value>::type
+    zero_subrange (const size_type begin,
+                   const size_type end,
+                   T              *dst)
     {
       std::memset (dst+begin,0,(end-begin)*sizeof(T));
     }
+
+    template <typename T>
+    typename std::enable_if<!std::is_trivial<T>::value>::type
+    zero_subrange (const size_type begin,
+                   const size_type end,
+                   T              *dst)
+    {
+      std::fill (dst+begin,dst+end,0);
+    }
   }
 }