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, 91 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/3.cc b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/3.cc
new file mode 100644
index 000000000..6ea22e395
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/3.cc
@@ -0,0 +1,91 @@
+// Copyright (C) 2004, 2009, 2010 Free Software Foundation
+//
+// 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/>.
+
+// 27.6.1.2.3 character extractors
+
+#include <istream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void test01() 
+{
+  bool test __attribute__((unused)) = true;
+  std::wstring str_01;
+  const std::wstring str_02(L"coltrane playing 'softly as a morning sunrise'");
+  const std::wstring str_03(L"coltrane");
+
+  std::wstringbuf isbuf_01(std::ios_base::in);
+  std::wstringbuf isbuf_02(str_02, std::ios_base::in);
+  std::wistream is_01(0);
+  std::wistream is_02(&isbuf_02);
+
+  std::ios_base::iostate state1, state2, statefail;
+  statefail = std::ios_base::failbit;
+
+  // template<_CharT, _Traits>
+  //  basic_istream& operator>>(istream&, _CharT*)
+  int n = 20;
+  wchar_t array1[n];
+  typedef std::wios::traits_type ctraits_type;
+
+  // testing with width() control enabled.
+  is_02.width(8);
+  state1 = is_02.rdstate();
+  is_02 >> array1;   // should snake L"coltran"
+  state2 = is_02.rdstate();
+  VERIFY( state1 == state2 );
+  VERIFY( !ctraits_type::compare(array1, L"coltran", 7) );
+
+  is_02.width(1);
+  state1 = is_02.rdstate();
+  is_02 >> array1;   // should snake nothing, set failbit
+  state2 = is_02.rdstate();
+  VERIFY( state1 != state2 );
+  VERIFY( state2 == statefail );
+  VERIFY( array1[0] == L'\0' );
+
+  is_02.width(8);
+  is_02.clear();
+  state1 = is_02.rdstate();
+  VERIFY( !state1 );
+  is_02 >> array1;   // should snake L"e"
+  state2 = is_02.rdstate();
+  VERIFY( state1 == state2 );
+  VERIFY( !ctraits_type::compare(array1, L"e", 1) );
+
+  // testing for correct exception setting
+  const std::wstring str_04(L"   impulse!!");
+  std::wstringbuf isbuf_03(str_04, std::ios_base::in);
+  std::wstringbuf isbuf_04(str_04, std::ios_base::in);
+  std::wistream is_03(&isbuf_03);
+  std::wistream is_04(&isbuf_04);
+
+  is_03 >> array1;
+  VERIFY( !ctraits_type::compare(array1, L"impulse!!", 10) );
+  VERIFY( is_03.rdstate() == std::ios_base::eofbit );
+
+  is_04.width(9);
+  is_04 >> array1;
+  VERIFY( !ctraits_type::compare(array1, L"impulse!", 9) );
+  VERIFY( !is_04.rdstate() ); 
+}
+
+int main()
+{
+  test01();
+  return 0;
+}