1 files changed, 58 insertions, 0 deletions
diff --git a/gdb/unittests/optional/cons/default.cc b/gdb/unittests/optional/cons/default.cc
new file mode 100644
index 0000000..b075f5c
--- /dev/null
+++ b/gdb/unittests/optional/cons/default.cc
@@ -0,0 +1,58 @@
+// Copyright (C) 2013-2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+namespace cons_default {
+
+struct tracker
+{
+  tracker() { ++count; }
+  ~tracker() { --count; }
+
+  tracker(tracker const&) { ++count; }
+  tracker(tracker&&) { ++count; }
+
+  tracker& operator=(tracker const&) = default;
+  tracker& operator=(tracker&&) = default;
+
+  static int count;
+};
+
+int tracker::count = 0;
+
+void test()
+{
+  // [20.5.4.1] Constructors
+
+  {
+    gdb::optional<tracker> o;
+    VERIFY( !o );
+  }
+
+  {
+    gdb::optional<tracker> o {};
+    VERIFY( !o );
+  }
+
+  {
+    gdb::optional<tracker> o = {};
+    VERIFY( !o );
+  }
+
+  VERIFY( tracker::count == 0 );
+}
+
+} // namespace cons_default