Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 95 insertions, 0 deletions

diff --git a/gcc-4.9/libstdc++-v3/testsuite/experimental/optional/swap/1.cc b/gcc-4.9/libstdc++-v3/testsuite/experimental/optional/swap/1.cc
new file mode 100644
index 000000000..db754ce3e
--- /dev/null
+++ b/gcc-4.9/libstdc++-v3/testsuite/experimental/optional/swap/1.cc
@@ -0,0 +1,95 @@
+// { dg-options "-std=gnu++1y" }
+// { dg-do run }
+
+// Copyright (C) 2013-2014 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 moved_to of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <experimental/optional>
+#include <testsuite_hooks.h>
+
+struct exception {};
+
+int counter = 0;
+
+struct mixin_counter
+{
+  mixin_counter() { ++counter; }
+  mixin_counter(mixin_counter const&) { ++counter; }
+  ~mixin_counter() { --counter; }
+};
+
+namespace ns
+{
+
+struct value_type : private mixin_counter
+{
+  explicit value_type(int state) : state(state) { }
+  int state;
+};
+
+int swaps = 0;
+
+void
+swap(value_type& lhs, value_type& rhs)
+{
+  ++swaps;
+  using std::swap;
+  swap(lhs.state, rhs.state);
+}
+
+} // namespace ns
+
+int main()
+{
+  using O = std::experimental::optional<ns::value_type>;
+
+  VERIFY( ns::swaps == 0 );
+
+  {
+    O o, p;
+    swap(o, p);
+    VERIFY( !o );
+    VERIFY( !p );
+  }
+
+  {
+    O o { std::experimental::in_place, 45 }, p;
+    swap(o, p);
+    VERIFY( !o );
+    VERIFY( p && p->state == 45 );
+  }
+
+  {
+    O o, p { std::experimental::in_place, 45 };
+    swap(o, p);
+    VERIFY( o && o->state == 45 );
+    VERIFY( !p );
+  }
+
+  {
+    O o { std::experimental::in_place, 167 }, p { std::experimental::in_place, 999 };
+    VERIFY( ns::swaps == 0 );
+
+    swap(o, p);
+
+    VERIFY( o && o->state == 999 );
+    VERIFY( p && p->state == 167 );
+    VERIFY( ns::swaps == 1 );
+  }
+
+  VERIFY( counter == 0 );
+}