From 986bc18543c9a9d04fe169097885bb0675871916 Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Mon, 5 Apr 2021 11:19:26 -0600
Subject: [PATCH] Add a test.

---
 tests/base/aligned_vector_06.cc     | 60 +++++++++++++++++++++++++++++
 tests/base/aligned_vector_06.output |  2 +
 2 files changed, 62 insertions(+)
 create mode 100644 tests/base/aligned_vector_06.cc
 create mode 100644 tests/base/aligned_vector_06.output

diff --git a/tests/base/aligned_vector_06.cc b/tests/base/aligned_vector_06.cc
new file mode 100644
index 0000000000..425ac01d3c
--- /dev/null
+++ b/tests/base/aligned_vector_06.cc
@@ -0,0 +1,60 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2012 - 2018 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.md at
+// the top level directory of deal.II.
+//
+// ---------------------------------------------------------------------
+
+
+// Make sure that we don't get into troubl for a vector that is empty
+// -- the AlignedVector class uses a custom deleter that aborts if the
+// object is not storing any data, but this deleter should not be
+// called in that case.
+
+#include <deal.II/base/aligned_vector.h>
+
+#include "../tests.h"
+
+
+void
+test()
+{
+  {
+    AlignedVector<int> i;
+
+    // Do nothing -- the object just goes out of scope again.
+  }
+
+  {
+    AlignedVector<int> i;
+    i.resize(0); // Do not allocate any elements here either
+
+    // Do nothing more -- the object just goes out of scope again.
+  }
+
+  {
+    AlignedVector<int> i(0);
+
+    // Do nothing more -- the object just goes out of scope again.
+  }
+
+  deallog << "OK" << std::endl;
+}
+
+
+
+int
+main()
+{
+  initlog();
+
+  test();
+}
diff --git a/tests/base/aligned_vector_06.output b/tests/base/aligned_vector_06.output
new file mode 100644
index 0000000000..0fd8fc12f0
--- /dev/null
+++ b/tests/base/aligned_vector_06.output
@@ -0,0 +1,2 @@
+
+DEAL::OK
-- 
2.39.5