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, 233 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/1.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/1.cc
new file mode 100644
index 000000000..f60911bdc
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/1.cc
@@ -0,0 +1,68 @@
+// 981208 bkoz test functionality of basic_stringbuf for char_type == char
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+// 2006, 2007, 2009, 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 <sstream>
+#include <testsuite_hooks.h>
+
+std::string str_01("mykonos. . . or what?");
+std::string str_02("paris, or sainte-maxime?");
+std::string str_03;
+std::stringbuf strb_01(str_01);
+std::stringbuf strb_02(str_02, std::ios_base::in);
+std::stringbuf strb_03(str_03, std::ios_base::out);
+
+// test overloaded virtual functions
+void test04() 
+{
+  bool test __attribute__((unused)) = true;
+  typedef std::stringbuf::int_type int_type;
+  typedef std::stringbuf::traits_type traits_type;
+
+  // GET
+  strb_01.in_avail();
+  strb_02.in_avail();
+  strb_03.in_avail(); 
+
+  // int_type sbumpc()
+  // if read_cur not avail, return uflow(), else return *read_cur & increment
+  int_type c1 = strb_01.sbumpc();
+  int_type c2 = strb_02.sbumpc();
+  VERIFY( c1 != c2 );
+  VERIFY( c1 == traits_type::to_int_type(str_01[0]) );
+  VERIFY( c2 == traits_type::to_int_type(str_02[0]) ); //should equal first letter at this point
+  int_type c3 = strb_01.sbumpc();
+  int_type c4 = strb_02.sbumpc();
+  VERIFY( c1 != c2 );
+  VERIFY( c1 != c3 );
+  VERIFY( c2 != c4 );
+  int_type c5 = strb_03.sbumpc();
+  VERIFY( c5 == traits_type::eof() );
+}
+
+int main()
+{
+  test04();
+  return 0;
+}
+
+
+
+// more candy!!!
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/9825.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/9825.cc
new file mode 100644
index 000000000..bd4c41129
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/char/9825.cc
@@ -0,0 +1,49 @@
+// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
+
+// Copyright (C) 2001, 2002, 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/9825
+// filebuf::sputbackc breaks sbumpc
+void test12()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+
+  stringbuf sbuf;
+  sbuf.sputn("crazy bees!", 11);
+  sbuf.pubseekoff(0, ios_base::beg);
+  sbuf.sbumpc();
+  sbuf.sputbackc('x');
+  stringbuf::int_type c = sbuf.sbumpc();
+  VERIFY( c == 'x' );
+  c = sbuf.sbumpc();
+  VERIFY( c == 'r' );
+  c = sbuf.sbumpc();
+  VERIFY( c == 'a' );
+}
+
+int main() 
+{
+  test12();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/wchar_t/1.cc
new file mode 100644
index 000000000..3ec279a19
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/wchar_t/1.cc
@@ -0,0 +1,67 @@
+// 981208 bkoz test functionality of basic_stringbuf for char_type == wchar_t
+
+// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 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 <sstream>
+#include <testsuite_hooks.h>
+
+std::wstring str_01(L"mykonos. . . or what?");
+std::wstring str_02(L"paris, or sainte-maxime?");
+std::wstring str_03;
+std::wstringbuf strb_01(str_01);
+std::wstringbuf strb_02(str_02, std::ios_base::in);
+std::wstringbuf strb_03(str_03, std::ios_base::out);
+
+// test overloaded virtual functions
+void test04() 
+{
+  bool test __attribute__((unused)) = true;
+  typedef std::wstringbuf::int_type int_type;
+  typedef std::wstringbuf::traits_type traits_type;
+
+  // GET
+  strb_01.in_avail();
+  strb_02.in_avail();
+  strb_03.in_avail(); 
+
+  // int_type sbumpc()
+  // if read_cur not avail, return uflow(), else return *read_cur & increment
+  int_type c1 = strb_01.sbumpc();
+  int_type c2 = strb_02.sbumpc();
+  VERIFY( c1 != c2 );
+  VERIFY( c1 == traits_type::to_int_type(str_01[0]) );
+  VERIFY( c2 == traits_type::to_int_type(str_02[0]) ); //should equal first letter at this point
+  int_type c3 = strb_01.sbumpc();
+  int_type c4 = strb_02.sbumpc();
+  VERIFY( c1 != c2 );
+  VERIFY( c1 != c3 );
+  VERIFY( c2 != c4 );
+  int_type c5 = strb_03.sbumpc();
+  VERIFY( c5 == traits_type::eof() );
+}
+
+int main()
+{
+  test04();
+  return 0;
+}
+
+
+
+// more candy!!!
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/wchar_t/9825.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/wchar_t/9825.cc
new file mode 100644
index 000000000..93ca56f09
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sbumpc/wchar_t/9825.cc
@@ -0,0 +1,49 @@
+// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
+
+// Copyright (C) 2001, 2002, 2003, 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// libstdc++/9825
+// filebuf::sputbackc breaks sbumpc
+void test12()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+
+  wstringbuf sbuf;
+  sbuf.sputn(L"crazy bees!", 11);
+  sbuf.pubseekoff(0, ios_base::beg);
+  sbuf.sbumpc();
+  sbuf.sputbackc(L'x');
+  stringbuf::int_type c = sbuf.sbumpc();
+  VERIFY( c == L'x' );
+  c = sbuf.sbumpc();
+  VERIFY( c == L'r' );
+  c = sbuf.sbumpc();
+  VERIFY( c == L'a' );
+}
+
+int main() 
+{
+  test12();
+  return 0;
+}