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, 174 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/cstring.cc b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/cstring.cc
new file mode 100644
index 000000000..b91453c0e
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/cstring.cc
@@ -0,0 +1,37 @@
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+
+// 2007-03-12  Stephen M. Webb  <stephen.webb@bregmasoft.com>
+//
+// Copyright (C) 2007, 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/>.
+
+// 7.8.2 basic_regex constructors
+
+#include <regex>
+
+void
+test01() 
+{ 
+  std::regex re("(a|b)*abb", std::regex::basic);
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/pstring_char.cc b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/pstring_char.cc
new file mode 100644
index 000000000..2f011fe52
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/pstring_char.cc
@@ -0,0 +1,42 @@
+// { dg-do run }
+// { dg-options "-std=gnu++0x" }
+
+// 2007-03-12  Stephen M. Webb  <stephen.webb@bregmasoft.com>
+//
+// Copyright (C) 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/>.
+
+// [28.8.2] class template basic_regex constructor
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+// Tests Pascal-style counted-string constructor of the basic_regex class.  
+void test01()
+{
+  const char* cs = "aab";
+	std::regex re(cs, 3, std::regex::basic);
+
+  VERIFY( re.flags() & std::regex_constants::basic );
+}
+
+int
+main()
+{ 
+  test01();
+  return 0;
+};
diff --git a/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/pstring_wchar_t.cc b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/pstring_wchar_t.cc
new file mode 100644
index 000000000..89deef6f1
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/pstring_wchar_t.cc
@@ -0,0 +1,44 @@
+// { dg-do run }
+// { dg-options "-std=c++0x" }
+
+// 2007-03-12  Stephen M. Webb  <stephen.webb@bregmasoft.com>
+//
+// Copyright (C) 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/>.
+
+// [28.8.2] class template basic_regex constructor
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+// Tests Pascal-style counted-string constructor of the basic_regex class.  
+void test01()
+{
+	bool test __attribute__((unused)) = true;
+
+  const wchar_t* cs = L"aab";
+	std::wregex re(cs, 3, std::wregex::basic);
+
+  VERIFY( re.flags() & std::regex_constants::basic );
+}
+
+int
+main()
+{ 
+  test01();
+  return 0;
+};
diff --git a/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/string_range_01_02_03.cc b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/string_range_01_02_03.cc
new file mode 100644
index 000000000..70ae2fa2a
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/string_range_01_02_03.cc
@@ -0,0 +1,51 @@
+// { dg-options "-std=gnu++0x" }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010, 2011 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/>.
+
+// 28.8.2 basic_regex ctor
+// Tests for invalid range expression
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	try
+	{
+		std::regex  re("a\\{1,2,3\\}", std::regex::basic);
+	}
+	catch (std::regex_error& ex)
+	{
+		VERIFY( ex.code() == std::regex_constants::error_brace );
+	}
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+