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diff --git a/libstdc++-v3/include/profile/bitset b/libstdc++-v3/include/profile/bitset
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+++ b/libstdc++-v3/include/profile/bitset
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+// Profiling bitset implementation -*- C++ -*-
+
+// Copyright (C) 2003, 2004, 2005, 2006, 2007 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 2, 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 COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+/** @file profile/bitset
+ *  This file is a GNU profile extension to the Standard C++ Library.
+ */
+
+#ifndef _GLIBCXX_PROFILE_BITSET
+#define _GLIBCXX_PROFILE_BITSET
+
+#include <bitset>
+
+namespace std
+{
+namespace __profile
+{
+  template<size_t _Nb>
+    class bitset
+    : public _GLIBCXX_STD_PR::bitset<_Nb> 
+    {
+      typedef _GLIBCXX_STD_PR::bitset<_Nb> _Base;
+
+    public:
+      bitset() : _Base() { }
+
+      bitset(unsigned long __val) : _Base(__val) { }
+
+      template<typename _CharT, typename _Traits, typename _Allocator>
+        explicit
+        bitset(const std::basic_string<_CharT,_Traits,_Allocator>& __str,
+           typename std::basic_string<_CharT,_Traits,_Allocator>::size_type
+           __pos = 0,
+           typename std::basic_string<_CharT,_Traits,_Allocator>::size_type
+           __n = (std::basic_string<_CharT,_Traits,_Allocator>::npos))
+    : _Base(__str, __pos, __n) { }
+
+      // _GLIBCXX_RESOLVE_LIB_DEFECTS
+      // 778. std::bitset does not have any constructor taking a string literal
+      explicit
+      bitset(const char* __s)
+      : _Base(__s) { }
+
+      bitset(const _Base& __x) : _Base(__x) { }
+
+      bool
+      operator==(const bitset<_Nb>& __rhs) const
+      { return _M_base() == __rhs; }
+
+      bool
+      operator!=(const bitset<_Nb>& __rhs) const
+      { return _M_base() != __rhs; }
+
+      bitset<_Nb>
+      operator<<(size_t __pos) const
+      { return bitset<_Nb>(_M_base() << __pos); }
+
+      bitset<_Nb>
+      operator>>(size_t __pos) const
+      { return bitset<_Nb>(_M_base() >> __pos); }
+
+      _Base&
+      _M_base() { return *this; }
+
+      const _Base&
+      _M_base() const { return *this; }
+
+    };
+
+  template<size_t _Nb>
+    bitset<_Nb>
+    operator&(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
+    { return bitset<_Nb>(__x) &= __y; }
+
+  template<size_t _Nb>
+    bitset<_Nb>
+    operator|(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
+    { return bitset<_Nb>(__x) |= __y; }
+
+  template<size_t _Nb>
+    bitset<_Nb>
+    operator^(const bitset<_Nb>& __x, const bitset<_Nb>& __y)
+    { return bitset<_Nb>(__x) ^= __y; }
+
+  template<typename _CharT, typename _Traits, size_t _Nb>
+    std::basic_istream<_CharT, _Traits>&
+    operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
+    { return __is >> __x._M_base(); }
+
+  template<typename _CharT, typename _Traits, size_t _Nb>
+    std::basic_ostream<_CharT, _Traits>&
+    operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+           const bitset<_Nb>& __x)
+    { return __os << __x._M_base(); }
+
+} // namespace __profile
+} // namespace std
+
+#endif