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, 277 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/1.cc b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/1.cc
new file mode 100644
index 000000000..655b3242d
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/1.cc
@@ -0,0 +1,75 @@
+// 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 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 <iterator>
+#include <sstream>
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+// In the occasion of libstdc++/25482
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  typedef istreambuf_iterator<wchar_t> in_iterator_type;
+  typedef ostreambuf_iterator<wchar_t> out_iterator_type;
+
+  const wchar_t data1[] = L"Drei Phantasien nach Friedrich Holderlin";
+  const wstring str1(data1);
+  wistringstream iss1(str1);
+  in_iterator_type beg1(iss1);
+  in_iterator_type end1;
+
+  wostringstream oss1;
+  out_iterator_type out1(oss1);
+
+  out1 = copy(beg1, beg1, out1);
+  VERIFY( oss1.str().empty() );
+
+  out1 = copy(end1, end1, out1);
+  VERIFY( oss1.str().empty() );
+
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 );
+  *out1 = L'x';
+  VERIFY( oss1.str() == str1 + L'x' );
+  oss1.str(L"");
+
+  iss1.seekg(0);
+  oss1.seekp(0);
+  oss1.str(L"");
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 );
+  *out1 = L'y';
+  VERIFY( oss1.str() == str1 + L'y' );
+  oss1.str(L"");
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == L"" );
+
+  iss1.seekg(0);
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/2.cc b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/2.cc
new file mode 100644
index 000000000..d7871320b
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/2.cc
@@ -0,0 +1,76 @@
+// 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 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 <iterator>
+#include <sstream>
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+// In the occasion of libstdc++/25482
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  typedef istreambuf_iterator<wchar_t> in_iterator_type;
+
+  const wchar_t data1[] = L"Drei Phantasien nach Friedrich Holderlin";
+  const wstring str1(data1);
+  wistringstream iss1(str1);
+  in_iterator_type beg1(iss1);
+  in_iterator_type end1;
+
+  wchar_t buffer1[sizeof(data1) * 5 / sizeof(wchar_t)];
+  wmemset(buffer1, L'*', sizeof(buffer1) / sizeof(wchar_t));
+  wchar_t* out1 = buffer1;
+
+  out1 = copy(beg1, beg1, out1);
+  VERIFY( out1 == buffer1 );
+
+  out1 = copy(end1, end1, out1);
+  VERIFY( out1 == buffer1 );
+
+  out1 = copy(beg1, end1, out1);
+  VERIFY( wstring(buffer1, out1) == str1 );
+  *out1++ = L'x';
+  VERIFY( wstring(buffer1, out1) == str1 + L'x' );
+  wmemset(buffer1, L'*', sizeof(buffer1) / sizeof(wchar_t));
+
+  iss1.seekg(0);
+  out1 = buffer1;
+  wmemset(buffer1, L'*', sizeof(buffer1) / sizeof(wchar_t));
+  out1 = copy(beg1, end1, out1);
+  VERIFY( wstring(buffer1, out1) == str1 );
+  *out1++ = L'y';
+  VERIFY( wstring(buffer1, out1) == str1 + L'y' );
+  out1 = buffer1;
+  wmemset(buffer1, L'*', sizeof(buffer1) / sizeof(wchar_t));
+  out1 = copy(beg1, end1, out1);
+  VERIFY( wstring(buffer1, out1) == L"" );
+
+  iss1.seekg(0);
+  out1 = copy(beg1, end1, out1);
+  VERIFY( wstring(buffer1, out1) == str1 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/3.cc b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/3.cc
new file mode 100644
index 000000000..ac50b87de
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/3.cc
@@ -0,0 +1,71 @@
+// 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 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 <iterator>
+#include <sstream>
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+// In the occasion of libstdc++/25482
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  typedef ostreambuf_iterator<wchar_t> out_iterator_type;
+
+  const wchar_t data1[] = L"Drei Phantasien nach Friedrich Holderlin";
+  const wstring str1(data1);
+  const wchar_t* beg1 = data1;
+  const wchar_t* end1 = beg1 + str1.size();
+
+  wostringstream oss1;
+  out_iterator_type out1(oss1);
+
+  out1 = copy(beg1, beg1, out1);
+  VERIFY( oss1.str().empty() );
+
+  out1 = copy(end1, end1, out1);
+  VERIFY( oss1.str().empty() );
+  
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 );
+  *out1 = L'x';
+  VERIFY( oss1.str() == str1 + L'x' );
+  oss1.str(L"");
+
+  oss1.seekp(0);
+  oss1.str(L"");
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 );
+  *out1 = L'y';
+  VERIFY( oss1.str() == str1 + L'y' );
+  oss1.str(L"");
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 );
+
+  out1 = copy(beg1, end1, out1);
+  VERIFY( oss1.str() == str1 + str1 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc
new file mode 100644
index 000000000..56a5cdef6
--- /dev/null
+++ b/libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc
@@ -0,0 +1,55 @@
+// 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
+
+// Copyright (C) 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 <iterator>
+#include <fstream>
+#include <algorithm>
+#include <testsuite_hooks.h>
+
+// In the occasion of libstdc++/25482
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+  
+  typedef istreambuf_iterator<wchar_t> in_iterator_type;
+
+  wifstream fbuf_ref("istream_unformatted-1.txt"),
+            fbuf("istream_unformatted-1.txt");
+
+  wchar_t buffer_ref[16500],
+          buffer[16500];
+
+  fbuf_ref.read(buffer_ref, 16500);
+
+  in_iterator_type beg(fbuf);
+  in_iterator_type end;
+  copy(beg, end, buffer);
+
+  VERIFY( fbuf_ref.good() );
+  VERIFY( fbuf.good() );
+
+  VERIFY( !wmemcmp(buffer, buffer_ref, 16500) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}