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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4 files changed, 182 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/2020.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/2020.cc
new file mode 100644
index 000000000..377e519a5
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/2020.cc
@@ -0,0 +1,52 @@
+// 1999-01-17 bkoz test functionality of basic_filebuf for char_type == char
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 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/>.
+
+// 27.8.1.1 - Template class basic_filebuf 
+// NB: This file is for testing basic_filebuf with NO OTHER INCLUDES.
+
+#include <fstream>
+#include <testsuite_hooks.h>
+#include <testsuite_character.h>
+
+// libstdc++/2020
+// should be able to use custom char_type, custom traits type
+void test07()
+{
+  bool test __attribute__((unused)) = true;
+  typedef std::basic_filebuf<__gnu_test::pod_ushort> gnu_filebuf;
+  
+  try
+    { gnu_filebuf obj; }
+  catch(std::exception& obj)
+    { 
+      test = false; 
+      VERIFY( test );
+    }
+}
+
+int main() 
+{
+  test07();
+  return 0;
+}
+
+
+
+// more surf!!!
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/char/1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/char/1.cc
new file mode 100644
index 000000000..ab2e2c70f
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/char/1.cc
@@ -0,0 +1,39 @@
+// 2004-09-29  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 2004, 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/>.
+
+// 27.8.1.2  basic_filebuf constructors  [lib.filebuf.cons]
+
+#include <fstream>
+#include <testsuite_hooks.h>
+#include <testsuite_io.h>
+
+// http://gcc.gnu.org/ml/libstdc++/2004-09/msg00243.html
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_test::constraint_filebuf fbuf;
+  VERIFY( fbuf.check_pointers() );
+}
+
+int main() 
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/wchar_t/1.cc
new file mode 100644
index 000000000..e2081de7c
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/wchar_t/1.cc
@@ -0,0 +1,39 @@
+// 2004-09-29  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 2004, 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/>.
+
+// 27.8.1.2  basic_filebuf constructors  [lib.filebuf.cons]
+
+#include <fstream>
+#include <testsuite_hooks.h>
+#include <testsuite_io.h>
+
+// http://gcc.gnu.org/ml/libstdc++/2004-09/msg00243.html
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_test::constraint_wfilebuf fbuf;
+  VERIFY( fbuf.check_pointers() );
+}
+
+int main() 
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/wchar_t/10132-1.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/wchar_t/10132-1.cc
new file mode 100644
index 000000000..69d2d4517
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/cons/wchar_t/10132-1.cc
@@ -0,0 +1,52 @@
+// 2003-04-24 Pétur Runólfsson <peturr02@ru.is>
+// Copyright (C) 2003, 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 <fstream>
+#include <locale>
+#include <stdexcept>
+#include <testsuite_hooks.h>
+
+class Cvt : public std::codecvt<wchar_t, char, std::mbstate_t>
+{
+protected:
+  virtual std::codecvt_base::result
+  do_out(std::mbstate_t&, const wchar_t*, const wchar_t*, const wchar_t*&, 
+	 char*, char*, char*&) const
+  { throw std::runtime_error("codecvt failed"); }
+};
+
+int main()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::locale loc = std::locale(std::locale::classic(), new Cvt);
+  std::wfilebuf* fb = new std::wfilebuf;
+  fb->pubimbue(loc);
+  fb->open("tmp_10132", std::ios_base::out);
+  fb->sputc(L'a');
+  
+  try
+    {
+      delete fb;
+    }
+  catch(std::exception& obj)
+    {
+      VERIFY( false ); 
+    }
+  return 0;
+}