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diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/regex_nfa.tcc b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/regex_nfa.tcc
new file mode 100644
index 0000000..9e4a6ce
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/bits/regex_nfa.tcc
@@ -0,0 +1,174 @@
+// class template regex -*- C++ -*-
+
+// 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/**
+ * @file bits/regex_nfa.tcc
+ *  This is an internal header file, included by other library headers.
+ *  Do not attempt to use it directly. @headername{regex}
+ */
+#include <regex>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+namespace __regex
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+#ifdef _GLIBCXX_DEBUG
+inline std::ostream& _State::
+_M_print(std::ostream& ostr) const
+{
+  switch (_M_opcode)
+  {
+    case _S_opcode_alternative:
+      ostr << "alt next=" << _M_next << " alt=" << _M_alt;
+      break;
+    case _S_opcode_subexpr_begin:
+      ostr << "subexpr begin next=" << _M_next << " index=" << _M_subexpr;
+      break;
+    case _S_opcode_subexpr_end:
+      ostr << "subexpr end next=" << _M_next << " index=" << _M_subexpr;
+      break;
+    case _S_opcode_match:
+      ostr << "match next=" << _M_next;
+      break;
+    case _S_opcode_accept:
+      ostr << "accept next=" << _M_next;
+      break;
+    default:
+      ostr << "unknown next=" << _M_next;
+      break;
+  }
+  return ostr;
+}
+
+// Prints graphviz dot commands for state.
+inline std::ostream& _State::
+_M_dot(std::ostream& __ostr, _StateIdT __id) const
+{
+  switch (_M_opcode)
+  {
+    case _S_opcode_alternative:
+      __ostr << __id << " [label=\"" << __id << "\\nALT\"];\n" 
+             << __id << " -> " << _M_next
+             << " [label=\"epsilon\", tailport=\"s\"];\n"
+             << __id << " -> " << _M_alt 
+             << " [label=\"epsilon\", tailport=\"n\"];\n";
+      break;
+    case _S_opcode_subexpr_begin:
+      __ostr << __id << " [label=\"" << __id << "\\nSBEGIN "
+             << _M_subexpr << "\"];\n" 
+             << __id << " -> " << _M_next << " [label=\"epsilon\"];\n";
+      break;
+    case _S_opcode_subexpr_end:
+      __ostr << __id << " [label=\"" << __id << "\\nSEND "
+             << _M_subexpr << "\"];\n" 
+             << __id << " -> " << _M_next << " [label=\"epsilon\"];\n";
+      break;
+    case _S_opcode_match:
+      __ostr << __id << " [label=\"" << __id << "\\nMATCH\"];\n" 
+             << __id << " -> " << _M_next << " [label=\"<match>\"];\n";
+      break;
+    case _S_opcode_accept:
+      __ostr << __id << " [label=\"" << __id << "\\nACC\"];\n" ;
+      break;
+    default:
+      __ostr << __id << " [label=\"" << __id << "\\nUNK\"];\n" 
+             << __id << " -> " << _M_next << " [label=\"?\"];\n";
+      break;
+  }
+  return __ostr;
+}
+
+inline std::ostream& _Nfa::
+_M_dot(std::ostream& __ostr) const
+{
+  __ostr << "digraph _Nfa {\n"
+   << "  rankdir=LR;\n";
+  for (unsigned int __i = 0; __i < this->size(); ++__i)
+  { this->at(__i)._M_dot(__ostr, __i); }
+  __ostr << "}\n";
+  return __ostr;
+}
+#endif
+
+inline _StateSeq& _StateSeq::
+operator=(const _StateSeq& __rhs)
+{
+  _M_start = __rhs._M_start;
+  _M_end1  = __rhs._M_end1;
+  _M_end2  = __rhs._M_end2;
+  return *this;
+}
+
+inline void _StateSeq::
+_M_push_back(_StateIdT __id)
+{
+  if (_M_end1 != _S_invalid_state_id)
+    _M_nfa[_M_end1]._M_next = __id;
+  _M_end1 = __id;
+}
+
+inline void _StateSeq::
+_M_append(_StateIdT __id)
+{
+  if (_M_end2 != _S_invalid_state_id)
+  {
+    if (_M_end2 == _M_end1)
+      _M_nfa[_M_end2]._M_alt = __id;
+    else
+      _M_nfa[_M_end2]._M_next = __id;
+    _M_end2 = _S_invalid_state_id;
+  }
+  if (_M_end1 != _S_invalid_state_id)
+    _M_nfa[_M_end1]._M_next = __id;
+  _M_end1 = __id;
+}
+
+inline void _StateSeq::
+_M_append(_StateSeq& __rhs)
+{
+  if (_M_end2 != _S_invalid_state_id)
+  {
+    if (_M_end2 == _M_end1)
+      _M_nfa[_M_end2]._M_alt = __rhs._M_start;
+    else
+      _M_nfa[_M_end2]._M_next = __rhs._M_start;
+    _M_end2 = _S_invalid_state_id;
+  }
+  if (__rhs._M_end2 != _S_invalid_state_id)
+    _M_end2 = __rhs._M_end2;
+  if (_M_end1 != _S_invalid_state_id)
+    _M_nfa[_M_end1]._M_next = __rhs._M_start;
+  _M_end1 = __rhs._M_end1;
+}
+
+// @todo implement this function.
+inline _StateIdT _StateSeq::
+_M_clone()
+{ return 0; }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace __regex
+} // namespace