From: David Wells <wellsd2@rpi.edu>
Date: Sat, 8 Apr 2017 21:57:39 +0000 (-0400)
Subject: Wrap C++14's std::make_unique as std_cxx14::make_unique.
X-Git-Tag: v9.0.0-rc1~1707^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3328da3da1183014efa0c1b094c3cc542d50f7e7;p=dealii.git

Wrap C++14's std::make_unique as std_cxx14::make_unique.
---

diff --git a/include/deal.II/base/std_cxx14/memory.h b/include/deal.II/base/std_cxx14/memory.h
new file mode 100644
index 0000000000..437bb81bf3
--- /dev/null
+++ b/include/deal.II/base/std_cxx14/memory.h
@@ -0,0 +1,46 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2017 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+#ifndef dealii__cxx14_memory_h
+#define dealii__cxx14_memory_h
+
+#include <deal.II/base/config.h>
+
+#include <memory>
+
+#ifndef DEAL_II_WITH_CXX14
+// needed for array type check
+#  include <type_traits>
+#endif
+
+DEAL_II_NAMESPACE_OPEN
+namespace std_cxx14
+{
+#ifdef DEAL_II_WITH_CXX14
+  using std::make_unique;
+#else
+  template <typename T, typename... Args>
+  inline
+  std::unique_ptr<T>
+  make_unique(Args &&... constructor_arguments)
+  {
+    static_assert(!std::is_array<T>::value,
+                  "This function is not implemented for array types.");
+    return std::unique_ptr<T>(new T(std::forward<Args>(constructor_arguments)...));
+  }
+#endif
+}
+DEAL_II_NAMESPACE_CLOSE
+
+#endif // dealii__cxx14_memory_h