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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6 files changed, 382 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/1.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/1.cc
new file mode 100644
index 000000000..b7b76da0d
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/1.cc
@@ -0,0 +1,66 @@
+// 981208 bkoz test functionality of basic_stringbuf for char_type == char
+
+// Copyright (C) 1997, 1998, 1999, 2000, 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/>.
+
+#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;
+
+  int_type c1 = strb_01.sbumpc();
+  int_type c2 = strb_02.sbumpc();
+  int_type c3 = strb_01.sbumpc();
+
+  // PUT
+  // int_type sputc(char_type c)
+  // if out_cur not avail, return overflow. Else, stores c at out_cur,
+  // increments out_cur, and returns c as int_type
+  strb_03.str(str_01); //reset
+  std::string::size_type sz1 = strb_03.str().length();
+  c1 = strb_03.sputc('a'); 
+  std::string::size_type sz2 = strb_03.str().length();
+  VERIFY( sz1 == sz2 ); //cuz inserting at out_cur, which is at beg to start
+  c2 = strb_03.sputc('b'); 
+  VERIFY( c1 != c2 );
+  VERIFY( strb_03.str() != str_01 );
+  c3 = strb_02.sputc('a'); // should be EOF because this is read-only
+  VERIFY( c3 == traits_type::eof() );
+}
+
+int main()
+{
+  test04();
+  return 0;
+}
+
+
+
+// more candy!!!
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/1057.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/1057.cc
new file mode 100644
index 000000000..f88f28e39
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/1057.cc
@@ -0,0 +1,53 @@
+// 1999-10-11 bkoz
+
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 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/>.
+
+
+// 27.5.2 template class basic_streambuf
+
+#include <string>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+class nullsetpbuf : public std::stringbuf
+{
+  char foo[64];
+public:
+  nullsetpbuf()
+  {
+    setp(foo, foo + 64);
+    setp(0, 0);
+  }
+};
+
+// libstdc++/1057
+void test05()
+{
+  std::string text1 = "abcdefghijklmn";
+  
+  nullsetpbuf nsp;
+  // Immediate crash as sputc writes to null pointer
+  nsp.sputc('a');
+}
+
+int main() 
+{
+  test05();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/9404-1.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/9404-1.cc
new file mode 100644
index 000000000..3521c0454
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/char/9404-1.cc
@@ -0,0 +1,72 @@
+// 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/>.
+
+// 27.7.1.3 Overridden virtual functions
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+bool over_called;
+
+class Derived_stringbuf : public std::stringbuf
+{
+public:
+  int_type overflow(int_type c)
+  {
+    over_called = true;
+    return std::stringbuf::overflow(c);
+  }
+  
+  const char_type* pub_epptr() const
+  {
+    return epptr();
+  }
+  
+  const char_type* pub_pptr() const
+  {
+    return pptr();
+  }
+};
+
+// libstdc++/9404
+void test04()
+{
+  bool test __attribute__((unused)) = true;
+
+  bool over_expected;
+
+  // sputc
+  Derived_stringbuf dsbuf_01;
+  over_called = false;
+  dsbuf_01.sputc('i');
+  VERIFY( over_called );
+  over_expected = dsbuf_01.pub_epptr() == dsbuf_01.pub_pptr();
+  over_called = false;
+  dsbuf_01.sputc('v');
+  VERIFY( (!over_expected && !over_called)
+	  || (over_expected && over_called) );
+  dsbuf_01.sputc('i');
+  VERIFY( dsbuf_01.str() == "ivi" ); // Sanity check.
+}
+
+int main() 
+{
+  test04();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1.cc
new file mode 100644
index 000000000..e9c7fb174
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1.cc
@@ -0,0 +1,66 @@
+// 981208 bkoz test functionality of basic_stringbuf for char_type == wchar_t
+
+// Copyright (C) 1997, 1998, 1999, 2000, 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/>.
+
+#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;
+
+  int_type c1 = strb_01.sbumpc();
+  int_type c2 = strb_02.sbumpc();
+  int_type c3 = strb_01.sbumpc();
+
+  // PUT
+  // int_type sputc(char_type c)
+  // if out_cur not avail, return overflow. Else, stores c at out_cur,
+  // increments out_cur, and returns c as int_type
+  strb_03.str(str_01); //reset
+  std::wstring::size_type sz1 = strb_03.str().length();
+  c1 = strb_03.sputc(L'a'); 
+  std::wstring::size_type sz2 = strb_03.str().length();
+  VERIFY( sz1 == sz2 ); //cuz inserting at out_cur, which is at beg to start
+  c2 = strb_03.sputc(L'b'); 
+  VERIFY( c1 != c2 );
+  VERIFY( strb_03.str() != str_01 );
+  c3 = strb_02.sputc(L'a'); // should be EOF because this is read-only
+  VERIFY( c3 == traits_type::eof() );
+}
+
+int main()
+{
+  test04();
+  return 0;
+}
+
+
+
+// more candy!!!
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1057.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1057.cc
new file mode 100644
index 000000000..ae07ebf30
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1057.cc
@@ -0,0 +1,53 @@
+// 1999-10-11 bkoz
+
+// Copyright (C) 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/>.
+
+
+// 27.5.2 template class basic_streambuf
+
+#include <string>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+class nullsetpbuf : public std::wstringbuf
+{
+  wchar_t foo[64];
+public:
+  nullsetpbuf()
+  {
+    setp(foo, foo + 64);
+    setp(0, 0);
+  }
+};
+
+// libstdc++/1057
+void test05()
+{
+  std::wstring text1 = L"abcdefghijklmn";
+  
+  nullsetpbuf nsp;
+  // Immediate crash as sputc writes to null pointer
+  nsp.sputc(L'a');
+}
+
+int main() 
+{
+  test05();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/9404-1.cc b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/9404-1.cc
new file mode 100644
index 000000000..693af97aa
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/9404-1.cc
@@ -0,0 +1,72 @@
+// 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/>.
+
+// 27.7.1.3 Overridden virtual functions
+
+#include <sstream>
+#include <testsuite_hooks.h>
+
+bool over_called;
+
+class Derived_stringbuf : public std::wstringbuf
+{
+public:
+  int_type overflow(int_type c)
+  {
+    over_called = true;
+    return std::wstringbuf::overflow(c);
+  }
+  
+  const char_type* pub_epptr() const
+  {
+    return epptr();
+  }
+  
+  const char_type* pub_pptr() const
+  {
+    return pptr();
+  }
+};
+
+// libstdc++/9404
+void test04()
+{
+  bool test __attribute__((unused)) = true;
+
+  bool over_expected;
+
+  // sputc
+  Derived_stringbuf dsbuf_01;
+  over_called = false;
+  dsbuf_01.sputc(L'i');
+  VERIFY( over_called );
+  over_expected = dsbuf_01.pub_epptr() == dsbuf_01.pub_pptr();
+  over_called = false;
+  dsbuf_01.sputc(L'v');
+  VERIFY( (!over_expected && !over_called)
+	  || (over_expected && over_called) );
+  dsbuf_01.sputc(L'i');
+  VERIFY( dsbuf_01.str() == L"ivi" ); // Sanity check.
+}
+
+int main() 
+{
+  test04();
+  return 0;
+}