1 files changed, 126 insertions, 0 deletions
diff --git a/gdb/unittests/optional/cons/copy.cc b/gdb/unittests/optional/cons/copy.cc
new file mode 100644
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--- /dev/null
+++ b/gdb/unittests/optional/cons/copy.cc
@@ -0,0 +1,126 @@
+// 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_copy {
+
+struct tracker
+{
+  tracker(int value) : value(value) { ++count; }
+  ~tracker() { --count; }
+
+  tracker(tracker const& other) : value(other.value) { ++count; }
+  tracker(tracker&& other) : value(other.value)
+  {
+    other.value = -1;
+    ++count;
+  }
+
+  tracker& operator=(tracker const&) = default;
+  tracker& operator=(tracker&&) = default;
+
+  int value;
+
+  static int count;
+};
+
+int tracker::count = 0;
+
+struct exception { };
+
+struct throwing_copy
+{
+  throwing_copy() = default;
+  throwing_copy(throwing_copy const&) { throw exception {}; }
+};
+
+void test()
+{
+  // [20.5.4.1] Constructors
+
+  {
+    gdb::optional<long> o;
+    auto copy = o;
+    VERIFY( !copy );
+    VERIFY( !o );
+  }
+
+  {
+    const long val = 0x1234ABCD;
+    gdb::optional<long> o { gdb::in_place, val};
+    auto copy = o;
+    VERIFY( copy );
+    VERIFY( *copy == val );
+#ifndef GDB_OPTIONAL
+    VERIFY( o && o == val );
+#endif
+  }
+
+  {
+    gdb::optional<tracker> o;
+    auto copy = o;
+    VERIFY( !copy );
+    VERIFY( tracker::count == 0 );
+    VERIFY( !o );
+  }
+
+  {
+    gdb::optional<tracker> o { gdb::in_place, 333 };
+    auto copy = o;
+    VERIFY( copy );
+    VERIFY( copy->value == 333 );
+    VERIFY( tracker::count == 2 );
+    VERIFY( o && o->value == 333 );
+  }
+
+  enum outcome { nothrow, caught, bad_catch };
+
+  {
+    outcome result = nothrow;
+    gdb::optional<throwing_copy> o;
+
+    try
+    {
+      auto copy = o;
+    }
+    catch(exception const&)
+    { result = caught; }
+    catch(...)
+    { result = bad_catch; }
+
+    VERIFY( result == nothrow );
+  }
+
+  {
+    outcome result = nothrow;
+    gdb::optional<throwing_copy> o { gdb::in_place };
+
+    try
+    {
+      auto copy = o;
+    }
+    catch(exception const&)
+    { result = caught; }
+    catch(...)
+    { result = bad_catch; }
+
+    VERIFY( result == caught );
+  }
+
+  VERIFY( tracker::count == 0 );
+}
+
+} // namespace cons_copy