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
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1 files changed, 55 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/23_containers/list/debug/invalidation/4.cc b/libstdc++-v3/testsuite/23_containers/list/debug/invalidation/4.cc
new file mode 100644
index 000000000..a5c9219a2
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/list/debug/invalidation/4.cc
@@ -0,0 +1,55 @@
+// List iterator invalidation tests
+
+// Copyright (C) 2003, 2004, 2005, 2006, 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 <debug/list>
+#include <iterator>
+#include <testsuite_hooks.h>
+
+// Splice
+void test04()
+{
+  using std::advance;
+  
+  bool test __attribute__((unused)) = true;
+
+  typedef __gnu_debug::list<int>  list_type;
+
+  list_type l1(10, 17);
+  list_type l2(10, 42);
+  
+  list_type::iterator start2 = l2.begin();
+  list_type::iterator end2 = start2;
+  advance(end2, 5);
+  list_type::iterator after2 = end2;
+  advance(after2, 2);
+  
+  l1.splice(l1.begin(), l2, start2, end2);
+  VERIFY(start2._M_dereferenceable());
+  VERIFY(end2._M_dereferenceable());
+  VERIFY(after2._M_dereferenceable());
+  VERIFY(start2._M_attached_to(&l1));
+  VERIFY(end2._M_attached_to(&l2));
+  VERIFY(after2._M_attached_to(&l2));
+}
+
+int main()
+{
+  test04();
+  return 0;
+}