obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

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.

9 files changed, 573 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/20_util/forward/1.cc b/libstdc++-v3/testsuite/20_util/forward/1.cc
new file mode 100644
index 000000000..7d40416ff
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/1.cc
@@ -0,0 +1,43 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2007-07-10  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2007, 2009 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 <memory>
+#include <utility>
+
+template<class T, class A1, class A2>
+  std::shared_ptr<T>
+  factory(A1&& a1, A2&& a2)
+  {
+    return std::shared_ptr<T>(new T(std::forward<A1>(a1),
+				    std::forward<A2>(a2)));
+  }
+
+struct A
+{
+  A(int&, const double&);
+};
+
+void g()
+{
+  int i = 2;
+  std::shared_ptr<A> sp1 = factory<A>(i, 1.414);
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/1_neg.cc b/libstdc++-v3/testsuite/20_util/forward/1_neg.cc
new file mode 100644
index 000000000..6c007bee2
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/1_neg.cc
@@ -0,0 +1,44 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// 2007-07-10  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2007, 2009 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 <memory>
+#include <utility>
+
+template<class T, class A1, class A2>
+  std::shared_ptr<T>
+  factory(A1&& a1, A2&& a2)
+  {
+    return std::shared_ptr<T>(new T(std::forward<A1>(a1),
+				    std::forward<A2>(a2))); // { dg-error "no matching function" }
+  }
+
+struct A
+{
+  A(int&, const double&);
+};
+
+void g()
+{
+  std::shared_ptr<A> sp1 = factory<A>(2, 1.414); // { dg-error "instantiated from here" }
+}
+
+// { dg-excess-errors "" }
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());
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/b.cc b/libstdc++-v3/testsuite/20_util/forward/b.cc
new file mode 100644
index 000000000..4168800b4
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/b.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
+{
+  A a_;
+public:
+  explicit Awrap(const A& a) : a_(a) { }
+  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 B.
+int main()
+{
+  std::list<C<A> > list;
+  A a(3);
+  C<A> c((Awrap(a)));
+  list.push_back(c);
+  test(c);
+  test(list.front());
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/c_neg.cc b/libstdc++-v3/testsuite/20_util/forward/c_neg.cc
new file mode 100644
index 000000000..50bfbf028
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/c_neg.cc
@@ -0,0 +1,78 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010, 2011 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/>.
+
+// { dg-error "static assertion failed" "" { target *-*-* } 69 }
+
+#include <list>
+
+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
+  {
+    __builtin_abort();
+  }
+};
+
+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 C.
+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());
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/d.cc b/libstdc++-v3/testsuite/20_util/forward/d.cc
new file mode 100644
index 000000000..c2c7eb3c8
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/d.cc
@@ -0,0 +1,78 @@
+// { 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
+{
+  A& a_;
+public:
+  explicit Awrap(A& a) : a_(a) { }
+  const A& get() const { return a_; }
+        A& get()       { 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 D.
+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());
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/e.cc b/libstdc++-v3/testsuite/20_util/forward/e.cc
new file mode 100644
index 000000000..4d89cd1a8
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/e.cc
@@ -0,0 +1,54 @@
+// { dg-do compile }
+// { 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 <utility>
+
+template <class T>
+  struct C
+  {
+    T t_;
+
+    C() { }
+
+    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())) { }
+
+    C(C&& c) : t_(std::forward<T>(c.t_)) { }
+  };
+
+template <class T>
+  struct Derived
+  : C<T>
+  {
+    Derived() { }
+    Derived(Derived&& d) : C<T>(std::forward<C<T>>(d)) { }
+  };
+
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2951.html
+// Test E.
+int main()
+{
+  Derived<int> d;
+  Derived<int> d2(std::move(d));
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/f_neg.cc b/libstdc++-v3/testsuite/20_util/forward/f_neg.cc
new file mode 100644
index 000000000..418a469df
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/f_neg.cc
@@ -0,0 +1,90 @@
+// { dg-do compile }
+// { 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/>.
+
+// { dg-error "static assertion failed" "" { target *-*-* } 69 }
+
+#include <utility>
+
+template <class T>
+  struct C
+  {
+    T t_;
+
+    C() {}
+
+    explicit C(const T& t) : t_(t) { }
+
+    template <class U,
+              class = typename std::enable_if
+                    <
+                        std::is_convertible<U, T>::value
+                    >::type>
+      C(C<U>&& c) : t_(std::forward<T>(c.t_)) { }
+  };
+
+class B;
+
+class A
+{
+  int data_;
+
+  friend class B;
+public:
+  explicit
+  A(int data = 1)
+  : data_(data) { }
+
+  ~A() { data_ = -1; }
+
+  void test() const
+  {
+    __builtin_abort();
+  }
+};
+
+class B
+{
+  int data_;
+public:
+  explicit
+  B(int data = 1)
+  : data_(data) { }
+
+  B(const A& a) : data_(a.data_) { }
+
+  B(A&& a) : data_(a.data_) { a.data_ = 100; }
+
+  ~B() { data_ = -1; }
+
+  void test() const
+  {
+    __builtin_abort();
+  }
+};
+
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2951.html
+// Test F.
+int main()
+{
+  A a(3);
+  C<A> ca(a);
+  C<const B&> cb(std::move(ca));
+  cb.t_.test();
+}
diff --git a/libstdc++-v3/testsuite/20_util/forward/requirements/explicit_instantiation.cc b/libstdc++-v3/testsuite/20_util/forward/requirements/explicit_instantiation.cc
new file mode 100644
index 000000000..88ba9e548
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/forward/requirements/explicit_instantiation.cc
@@ -0,0 +1,32 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// 2007-07-10  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 2007, 2009 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/>.
+
+
+// NB: This file is for testing utility with NO OTHER INCLUDES.
+
+#include <utility>
+
+namespace std
+{
+  typedef short test_type;
+  template test_type&& forward<test_type>(test_type&&);
+}