From 8ec9f0051b8a39428a10de13b9147374f1ea7861 Mon Sep 17 00:00:00 2001
From: Jean-Paul Pelteret <jppelteret@gmail.com>
Date: Thu, 18 Apr 2019 15:49:59 +0200
Subject: [PATCH] Add a test to check std::copy and std::swap with vector of
 Expressions

---
 tests/symengine/symengine_number_type_03.cc   | 56 +++++++++++++++++++
 .../symengine/symengine_number_type_03.output | 12 ++++
 2 files changed, 68 insertions(+)
 create mode 100644 tests/symengine/symengine_number_type_03.cc
 create mode 100644 tests/symengine/symengine_number_type_03.output

diff --git a/tests/symengine/symengine_number_type_03.cc b/tests/symengine/symengine_number_type_03.cc
new file mode 100644
index 0000000000..743745db23
--- /dev/null
+++ b/tests/symengine/symengine_number_type_03.cc
@@ -0,0 +1,56 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2019 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.
+//
+// ---------------------------------------------------------------------
+
+
+// Check that the wrapper for symengine expressions can be use with some
+// of the algorithms defined in the standard namespace
+
+#include <deal.II/differentiation/sd.h>
+
+#include <algorithm>
+
+#include "../tests.h"
+
+using namespace dealii;
+namespace SD = Differentiation::SD;
+
+int
+main()
+{
+  initlog();
+
+  const SD::types::symbol_vector copy_from{SD::Expression(1),
+                                           SD::Expression(true),
+                                           SD::Expression(2.5),
+                                           SD::Expression("a")};
+  SD::types::symbol_vector       copy_to(copy_from.size());
+
+  // Mimics Tensor operator=
+  std::copy(copy_from.begin(), copy_from.end(), copy_to.begin());
+
+  deallog << "Copy" << std::endl;
+  for (unsigned int i = 0; i < copy_from.size(); ++i)
+    deallog << i << ": " << copy_from[i] << " -> " << copy_to[i] << std::endl;
+
+
+  SD::types::symbol_vector swap_to;
+  std::swap(copy_to, swap_to);
+
+  deallog << "Swap" << std::endl;
+  for (unsigned int i = 0; i < swap_to.size(); ++i)
+    deallog << i << ": " << swap_to[i] << std::endl;
+
+  deallog << "OK" << std::endl;
+}
diff --git a/tests/symengine/symengine_number_type_03.output b/tests/symengine/symengine_number_type_03.output
new file mode 100644
index 0000000000..acf7106b08
--- /dev/null
+++ b/tests/symengine/symengine_number_type_03.output
@@ -0,0 +1,12 @@
+
+DEAL::Copy
+DEAL::0: 1 -> 1
+DEAL::1: True -> True
+DEAL::2: 2.5 -> 2.5
+DEAL::3: a -> a
+DEAL::Swap
+DEAL::0: 1
+DEAL::1: True
+DEAL::2: 2.5
+DEAL::3: a
+DEAL::OK
-- 
2.39.5