From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libstdc++-v3/testsuite/20_util/forward/a.cc | 77 +++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 libstdc++-v3/testsuite/20_util/forward/a.cc

(limited to 'libstdc++-v3/testsuite/20_util/forward/a.cc')

diff --git a/libstdc++-v3/testsuite/20_util/forward/a.cc b/libstdc++-v3/testsuite/20_util/forward/a.cc
new file mode 100644
index 000000000..296c9f449
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/a.cc
@@ -0,0 +1,77 @@
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 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/>.
+
+#include <list>
+#include <testsuite_hooks.h>
+
+template <class T>
+  struct C
+  {
+    T t_;
+
+    template <class U,
+              class = typename std::enable_if
+                    <
+                        !std::is_lvalue_reference<U>::value
+                    >::type>
+      C(U&& u) : t_(std::forward<T>(std::move(u).get())) {}
+  };
+
+class A
+{
+  int data_;
+public:
+  explicit
+  A(int data = 1)
+  : data_(data) {}
+  
+  ~A() { data_ = -1; }
+
+  void test() const
+  {
+    bool test __attribute__((unused)) = true;
+    VERIFY( data_ == 3 );
+  }
+};
+
+class Awrap
+{
+  const A& a_;
+public:
+  explicit Awrap(const A& a) : a_(a) { }
+  const A& get() const { return a_; }
+};
+
+template <class C>
+  void test(C c)
+  {
+    c.t_.test();
+  }
+
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2951.html
+// Test A.
+int main()
+{
+  std::list<C<const A&> > list;
+  A a(3);
+  C<const A&> c((Awrap(a)));
+  list.push_back(c);
+  test(c);
+  test(list.front());
+}
-- 
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