Reorganize the gcc vendor import work area. This flattens out a bunch

of unnecessary path components that are relics of cvs2svn.

(These are directory moves)

1 files changed, 1557 insertions, 0 deletions

diff --git a/libstdc++/include/bits/stl_tree.h b/libstdc++/include/bits/stl_tree.h
new file mode 100644
index 0000000..22e132f
--- /dev/null
+++ b/libstdc++/include/bits/stl_tree.h
@@ -0,0 +1,1557 @@
+// RB tree implementation -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
+// 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.
+
+/*
+ *
+ * Copyright (c) 1996,1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ *
+ */
+
+/** @file stl_tree.h
+ *  This is an internal header file, included by other library headers.
+ *  You should not attempt to use it directly.
+ */
+
+#ifndef _TREE_H
+#define _TREE_H 1
+
+#include <bits/stl_algobase.h>
+#include <bits/allocator.h>
+#include <bits/stl_construct.h>
+#include <bits/stl_function.h>
+#include <bits/cpp_type_traits.h>
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
+
+  // Red-black tree class, designed for use in implementing STL
+  // associative containers (set, multiset, map, and multimap). The
+  // insertion and deletion algorithms are based on those in Cormen,
+  // Leiserson, and Rivest, Introduction to Algorithms (MIT Press,
+  // 1990), except that
+  //
+  // (1) the header cell is maintained with links not only to the root
+  // but also to the leftmost node of the tree, to enable constant
+  // time begin(), and to the rightmost node of the tree, to enable
+  // linear time performance when used with the generic set algorithms
+  // (set_union, etc.)
+  // 
+  // (2) when a node being deleted has two children its successor node
+  // is relinked into its place, rather than copied, so that the only
+  // iterators invalidated are those referring to the deleted node.
+
+  enum _Rb_tree_color { _S_red = false, _S_black = true };
+
+  struct _Rb_tree_node_base
+  {
+    typedef _Rb_tree_node_base* _Base_ptr;
+    typedef const _Rb_tree_node_base* _Const_Base_ptr;
+
+    _Rb_tree_color	_M_color;
+    _Base_ptr		_M_parent;
+    _Base_ptr		_M_left;
+    _Base_ptr		_M_right;
+
+    static _Base_ptr
+    _S_minimum(_Base_ptr __x)
+    {
+      while (__x->_M_left != 0) __x = __x->_M_left;
+      return __x;
+    }
+
+    static _Const_Base_ptr
+    _S_minimum(_Const_Base_ptr __x)
+    {
+      while (__x->_M_left != 0) __x = __x->_M_left;
+      return __x;
+    }
+
+    static _Base_ptr
+    _S_maximum(_Base_ptr __x)
+    {
+      while (__x->_M_right != 0) __x = __x->_M_right;
+      return __x;
+    }
+
+    static _Const_Base_ptr
+    _S_maximum(_Const_Base_ptr __x)
+    {
+      while (__x->_M_right != 0) __x = __x->_M_right;
+      return __x;
+    }
+  };
+
+  template<typename _Val>
+    struct _Rb_tree_node : public _Rb_tree_node_base
+    {
+      typedef _Rb_tree_node<_Val>* _Link_type;
+      _Val _M_value_field;
+    };
+
+  _Rb_tree_node_base*
+  _Rb_tree_increment(_Rb_tree_node_base* __x);
+
+  const _Rb_tree_node_base*
+  _Rb_tree_increment(const _Rb_tree_node_base* __x);
+
+  _Rb_tree_node_base*
+  _Rb_tree_decrement(_Rb_tree_node_base* __x);
+
+  const _Rb_tree_node_base*
+  _Rb_tree_decrement(const _Rb_tree_node_base* __x);
+
+  template<typename _Tp>
+    struct _Rb_tree_iterator
+    {
+      typedef _Tp  value_type;
+      typedef _Tp& reference;
+      typedef _Tp* pointer;
+
+      typedef bidirectional_iterator_tag iterator_category;
+      typedef ptrdiff_t                  difference_type;
+
+      typedef _Rb_tree_iterator<_Tp>        _Self;
+      typedef _Rb_tree_node_base::_Base_ptr _Base_ptr;
+      typedef _Rb_tree_node<_Tp>*           _Link_type;
+
+      _Rb_tree_iterator()
+      : _M_node() { }
+
+      explicit
+      _Rb_tree_iterator(_Link_type __x)
+      : _M_node(__x) { }
+
+      reference
+      operator*() const
+      { return static_cast<_Link_type>(_M_node)->_M_value_field; }
+
+      pointer
+      operator->() const
+      { return &static_cast<_Link_type>(_M_node)->_M_value_field; }
+
+      _Self&
+      operator++()
+      {
+	_M_node = _Rb_tree_increment(_M_node);
+	return *this;
+      }
+
+      _Self
+      operator++(int)
+      {
+	_Self __tmp = *this;
+	_M_node = _Rb_tree_increment(_M_node);
+	return __tmp;
+      }
+
+      _Self&
+      operator--()
+      {
+	_M_node = _Rb_tree_decrement(_M_node);
+	return *this;
+      }
+
+      _Self
+      operator--(int)
+      {
+	_Self __tmp = *this;
+	_M_node = _Rb_tree_decrement(_M_node);
+	return __tmp;
+      }
+
+      bool
+      operator==(const _Self& __x) const
+      { return _M_node == __x._M_node; }
+
+      bool
+      operator!=(const _Self& __x) const
+      { return _M_node != __x._M_node; }
+
+      _Base_ptr _M_node;
+  };
+
+  template<typename _Tp>
+    struct _Rb_tree_const_iterator
+    {
+      typedef _Tp        value_type;
+      typedef const _Tp& reference;
+      typedef const _Tp* pointer;
+
+      typedef _Rb_tree_iterator<_Tp> iterator;
+
+      typedef bidirectional_iterator_tag iterator_category;
+      typedef ptrdiff_t                  difference_type;
+
+      typedef _Rb_tree_const_iterator<_Tp>        _Self;
+      typedef _Rb_tree_node_base::_Const_Base_ptr _Base_ptr;
+      typedef const _Rb_tree_node<_Tp>*           _Link_type;
+
+      _Rb_tree_const_iterator()
+      : _M_node() { }
+
+      explicit
+      _Rb_tree_const_iterator(_Link_type __x)
+      : _M_node(__x) { }
+
+      _Rb_tree_const_iterator(const iterator& __it)
+      : _M_node(__it._M_node) { }
+
+      reference
+      operator*() const
+      { return static_cast<_Link_type>(_M_node)->_M_value_field; }
+
+      pointer
+      operator->() const
+      { return &static_cast<_Link_type>(_M_node)->_M_value_field; }
+
+      _Self&
+      operator++()
+      {
+	_M_node = _Rb_tree_increment(_M_node);
+	return *this;
+      }
+
+      _Self
+      operator++(int)
+      {
+	_Self __tmp = *this;
+	_M_node = _Rb_tree_increment(_M_node);
+	return __tmp;
+      }
+
+      _Self&
+      operator--()
+      {
+	_M_node = _Rb_tree_decrement(_M_node);
+	return *this;
+      }
+
+      _Self
+      operator--(int)
+      {
+	_Self __tmp = *this;
+	_M_node = _Rb_tree_decrement(_M_node);
+	return __tmp;
+      }
+
+      bool
+      operator==(const _Self& __x) const
+      { return _M_node == __x._M_node; }
+
+      bool
+      operator!=(const _Self& __x) const
+      { return _M_node != __x._M_node; }
+
+      _Base_ptr _M_node;
+    };
+
+  template<typename _Val>
+    inline bool
+    operator==(const _Rb_tree_iterator<_Val>& __x,
+               const _Rb_tree_const_iterator<_Val>& __y)
+    { return __x._M_node == __y._M_node; }
+
+  template<typename _Val>
+    inline bool
+    operator!=(const _Rb_tree_iterator<_Val>& __x,
+               const _Rb_tree_const_iterator<_Val>& __y)
+    { return __x._M_node != __y._M_node; }
+
+  void
+  _Rb_tree_rotate_left(_Rb_tree_node_base* const __x,
+                       _Rb_tree_node_base*& __root);
+
+  void
+  _Rb_tree_rotate_right(_Rb_tree_node_base* const __x,
+                        _Rb_tree_node_base*& __root);
+
+  void
+  _Rb_tree_insert_and_rebalance(const bool __insert_left,
+                                _Rb_tree_node_base* __x,
+                                _Rb_tree_node_base* __p,
+                                _Rb_tree_node_base& __header);
+
+  _Rb_tree_node_base*
+  _Rb_tree_rebalance_for_erase(_Rb_tree_node_base* const __z,
+			       _Rb_tree_node_base& __header);
+
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc = allocator<_Val> >
+    class _Rb_tree
+    {
+      typedef typename _Alloc::template rebind<_Rb_tree_node<_Val> >::other
+              _Node_allocator;
+
+    protected:
+      typedef _Rb_tree_node_base* _Base_ptr;
+      typedef const _Rb_tree_node_base* _Const_Base_ptr;
+      typedef _Rb_tree_node<_Val> _Rb_tree_node;
+
+    public:
+      typedef _Key key_type;
+      typedef _Val value_type;
+      typedef value_type* pointer;
+      typedef const value_type* const_pointer;
+      typedef value_type& reference;
+      typedef const value_type& const_reference;
+      typedef _Rb_tree_node* _Link_type;
+      typedef const _Rb_tree_node* _Const_Link_type;
+      typedef size_t size_type;
+      typedef ptrdiff_t difference_type;
+      typedef _Alloc allocator_type;
+
+      _Node_allocator&
+      _M_get_Node_allocator()
+      { return *static_cast<_Node_allocator*>(&this->_M_impl); }
+      
+      const _Node_allocator&
+      _M_get_Node_allocator() const
+      { return *static_cast<const _Node_allocator*>(&this->_M_impl); }
+
+      allocator_type
+      get_allocator() const
+      { return allocator_type(_M_get_Node_allocator()); }
+
+    protected:
+      _Rb_tree_node*
+      _M_get_node()
+      { return _M_impl._Node_allocator::allocate(1); }
+
+      void
+      _M_put_node(_Rb_tree_node* __p)
+      { _M_impl._Node_allocator::deallocate(__p, 1); }
+
+      _Link_type
+      _M_create_node(const value_type& __x)
+      {
+	_Link_type __tmp = _M_get_node();
+	try
+	  { get_allocator().construct(&__tmp->_M_value_field, __x); }
+	catch(...)
+	  {
+	    _M_put_node(__tmp);
+	    __throw_exception_again;
+	  }
+	return __tmp;
+      }
+
+      _Link_type
+      _M_clone_node(_Const_Link_type __x)
+      {
+	_Link_type __tmp = _M_create_node(__x->_M_value_field);
+	__tmp->_M_color = __x->_M_color;
+	__tmp->_M_left = 0;
+	__tmp->_M_right = 0;
+	return __tmp;
+      }
+
+      void
+      _M_destroy_node(_Link_type __p)
+      {
+	get_allocator().destroy(&__p->_M_value_field);
+	_M_put_node(__p);
+      }
+
+    protected:
+      template<typename _Key_compare, 
+	       bool _Is_pod_comparator = std::__is_pod<_Key_compare>::__value>
+        struct _Rb_tree_impl : public _Node_allocator
+        {
+	  _Key_compare		_M_key_compare;
+	  _Rb_tree_node_base 	_M_header;
+	  size_type 		_M_node_count; // Keeps track of size of tree.
+
+	  _Rb_tree_impl(const _Node_allocator& __a = _Node_allocator(),
+			const _Key_compare& __comp = _Key_compare())
+	  : _Node_allocator(__a), _M_key_compare(__comp), _M_header(), 
+	    _M_node_count(0)
+	  {
+	    this->_M_header._M_color = _S_red;
+	    this->_M_header._M_parent = 0;
+	    this->_M_header._M_left = &this->_M_header;
+	    this->_M_header._M_right = &this->_M_header;
+	  }
+	};
+
+      // Specialization for _Comparison types that are not capable of
+      // being base classes / super classes.
+      template<typename _Key_compare>
+        struct _Rb_tree_impl<_Key_compare, true> : public _Node_allocator 
+	{
+	  _Key_compare 		_M_key_compare;
+	  _Rb_tree_node_base 	_M_header;
+	  size_type 		_M_node_count; // Keeps track of size of tree.
+
+	  _Rb_tree_impl(const _Node_allocator& __a = _Node_allocator(),
+			const _Key_compare& __comp = _Key_compare())
+	  : _Node_allocator(__a), _M_key_compare(__comp), _M_header(),
+	    _M_node_count(0)
+	  { 
+	    this->_M_header._M_color = _S_red;
+	    this->_M_header._M_parent = 0;
+	    this->_M_header._M_left = &this->_M_header;
+	    this->_M_header._M_right = &this->_M_header;
+	  }
+	};
+
+      _Rb_tree_impl<_Compare> _M_impl;
+
+    protected:
+      _Base_ptr&
+      _M_root()
+      { return this->_M_impl._M_header._M_parent; }
+
+      _Const_Base_ptr
+      _M_root() const
+      { return this->_M_impl._M_header._M_parent; }
+
+      _Base_ptr&
+      _M_leftmost()
+      { return this->_M_impl._M_header._M_left; }
+
+      _Const_Base_ptr
+      _M_leftmost() const
+      { return this->_M_impl._M_header._M_left; }
+
+      _Base_ptr&
+      _M_rightmost()
+      { return this->_M_impl._M_header._M_right; }
+
+      _Const_Base_ptr
+      _M_rightmost() const
+      { return this->_M_impl._M_header._M_right; }
+
+      _Link_type
+      _M_begin()
+      { return static_cast<_Link_type>(this->_M_impl._M_header._M_parent); }
+
+      _Const_Link_type
+      _M_begin() const
+      {
+	return static_cast<_Const_Link_type>
+	  (this->_M_impl._M_header._M_parent);
+      }
+
+      _Link_type
+      _M_end()
+      { return static_cast<_Link_type>(&this->_M_impl._M_header); }
+
+      _Const_Link_type
+      _M_end() const
+      { return static_cast<_Const_Link_type>(&this->_M_impl._M_header); }
+
+      static const_reference
+      _S_value(_Const_Link_type __x)
+      { return __x->_M_value_field; }
+
+      static const _Key&
+      _S_key(_Const_Link_type __x)
+      { return _KeyOfValue()(_S_value(__x)); }
+
+      static _Link_type
+      _S_left(_Base_ptr __x)
+      { return static_cast<_Link_type>(__x->_M_left); }
+
+      static _Const_Link_type
+      _S_left(_Const_Base_ptr __x)
+      { return static_cast<_Const_Link_type>(__x->_M_left); }
+
+      static _Link_type
+      _S_right(_Base_ptr __x)
+      { return static_cast<_Link_type>(__x->_M_right); }
+
+      static _Const_Link_type
+      _S_right(_Const_Base_ptr __x)
+      { return static_cast<_Const_Link_type>(__x->_M_right); }
+
+      static const_reference
+      _S_value(_Const_Base_ptr __x)
+      { return static_cast<_Const_Link_type>(__x)->_M_value_field; }
+
+      static const _Key&
+      _S_key(_Const_Base_ptr __x)
+      { return _KeyOfValue()(_S_value(__x)); }
+
+      static _Base_ptr
+      _S_minimum(_Base_ptr __x)
+      { return _Rb_tree_node_base::_S_minimum(__x); }
+
+      static _Const_Base_ptr
+      _S_minimum(_Const_Base_ptr __x)
+      { return _Rb_tree_node_base::_S_minimum(__x); }
+
+      static _Base_ptr
+      _S_maximum(_Base_ptr __x)
+      { return _Rb_tree_node_base::_S_maximum(__x); }
+
+      static _Const_Base_ptr
+      _S_maximum(_Const_Base_ptr __x)
+      { return _Rb_tree_node_base::_S_maximum(__x); }
+
+    public:
+      typedef _Rb_tree_iterator<value_type>       iterator;
+      typedef _Rb_tree_const_iterator<value_type> const_iterator;
+
+      typedef std::reverse_iterator<iterator>       reverse_iterator;
+      typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+
+    private:
+      iterator
+      _M_insert(_Base_ptr __x, _Base_ptr __y, const value_type& __v);
+
+      // _GLIBCXX_RESOLVE_LIB_DEFECTS
+      // 233. Insertion hints in associative containers.
+      iterator
+      _M_insert_lower(_Base_ptr __x, _Base_ptr __y, const value_type& __v);
+
+      const_iterator
+      _M_insert(_Const_Base_ptr __x, _Const_Base_ptr __y,
+		const value_type& __v);
+
+      _Link_type
+      _M_copy(_Const_Link_type __x, _Link_type __p);
+
+      void
+      _M_erase(_Link_type __x);
+
+    public:
+      // allocation/deallocation
+      _Rb_tree()
+      { }
+
+      _Rb_tree(const _Compare& __comp)
+      : _M_impl(allocator_type(), __comp)
+      { }
+
+      _Rb_tree(const _Compare& __comp, const allocator_type& __a)
+      : _M_impl(__a, __comp)
+      { }
+
+      _Rb_tree(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x)
+      : _M_impl(__x._M_get_Node_allocator(), __x._M_impl._M_key_compare)
+      {
+	if (__x._M_root() != 0)
+	  {
+	    _M_root() = _M_copy(__x._M_begin(), _M_end());
+	    _M_leftmost() = _S_minimum(_M_root());
+	    _M_rightmost() = _S_maximum(_M_root());
+	    _M_impl._M_node_count = __x._M_impl._M_node_count;
+	  }
+      }
+
+      ~_Rb_tree()
+      { _M_erase(_M_begin()); }
+
+      _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&
+      operator=(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x);
+
+      // Accessors.
+      _Compare
+      key_comp() const
+      { return _M_impl._M_key_compare; }
+
+      iterator
+      begin()
+      { 
+	return iterator(static_cast<_Link_type>
+			(this->_M_impl._M_header._M_left));
+      }
+
+      const_iterator
+      begin() const
+      { 
+	return const_iterator(static_cast<_Const_Link_type>
+			      (this->_M_impl._M_header._M_left));
+      }
+
+      iterator
+      end()
+      { return iterator(static_cast<_Link_type>(&this->_M_impl._M_header)); }
+
+      const_iterator
+      end() const
+      { 
+	return const_iterator(static_cast<_Const_Link_type>
+			      (&this->_M_impl._M_header));
+      }
+
+      reverse_iterator
+      rbegin()
+      { return reverse_iterator(end()); }
+
+      const_reverse_iterator
+      rbegin() const
+      { return const_reverse_iterator(end()); }
+
+      reverse_iterator
+      rend()
+      { return reverse_iterator(begin()); }
+
+      const_reverse_iterator
+      rend() const
+      { return const_reverse_iterator(begin()); }
+
+      bool
+      empty() const
+      { return _M_impl._M_node_count == 0; }
+
+      size_type
+      size() const
+      { return _M_impl._M_node_count; }
+
+      size_type
+      max_size() const
+      { return get_allocator().max_size(); }
+
+      void
+      swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __t);
+
+      // Insert/erase.
+      pair<iterator, bool>
+      _M_insert_unique(const value_type& __x);
+
+      iterator
+      _M_insert_equal(const value_type& __x);
+
+      // _GLIBCXX_RESOLVE_LIB_DEFECTS
+      // 233. Insertion hints in associative containers.
+      iterator
+      _M_insert_equal_lower(const value_type& __x);
+
+      iterator
+      _M_insert_unique(iterator __position, const value_type& __x);
+
+      const_iterator
+      _M_insert_unique(const_iterator __position, const value_type& __x);
+
+      iterator
+      _M_insert_equal(iterator __position, const value_type& __x);
+
+      const_iterator
+      _M_insert_equal(const_iterator __position, const value_type& __x);
+
+      template<typename _InputIterator>
+        void
+        _M_insert_unique(_InputIterator __first, _InputIterator __last);
+
+      template<typename _InputIterator>
+        void
+        _M_insert_equal(_InputIterator __first, _InputIterator __last);
+
+      void
+      erase(iterator __position);
+
+      void
+      erase(const_iterator __position);
+
+      size_type
+      erase(const key_type& __x);
+
+      void
+      erase(iterator __first, iterator __last);
+
+      void
+      erase(const_iterator __first, const_iterator __last);
+
+      void
+      erase(const key_type* __first, const key_type* __last);
+
+      void
+      clear()
+      {
+        _M_erase(_M_begin());
+        _M_leftmost() = _M_end();
+        _M_root() = 0;
+        _M_rightmost() = _M_end();
+        _M_impl._M_node_count = 0;
+      }
+
+      // Set operations.
+      iterator
+      find(const key_type& __x);
+
+      const_iterator
+      find(const key_type& __x) const;
+
+      size_type
+      count(const key_type& __x) const;
+
+      iterator
+      lower_bound(const key_type& __x);
+
+      const_iterator
+      lower_bound(const key_type& __x) const;
+
+      iterator
+      upper_bound(const key_type& __x);
+
+      const_iterator
+      upper_bound(const key_type& __x) const;
+
+      pair<iterator,iterator>
+      equal_range(const key_type& __x);
+
+      pair<const_iterator, const_iterator>
+      equal_range(const key_type& __x) const;
+
+      // Debugging.
+      bool
+      __rb_verify() const;
+    };
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline bool
+    operator==(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	       const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    {
+      return __x.size() == __y.size()
+	     && std::equal(__x.begin(), __x.end(), __y.begin());
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline bool
+    operator<(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	      const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    {
+      return std::lexicographical_compare(__x.begin(), __x.end(), 
+					  __y.begin(), __y.end());
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline bool
+    operator!=(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	       const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    { return !(__x == __y); }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline bool
+    operator>(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	      const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    { return __y < __x; }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline bool
+    operator<=(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	       const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    { return !(__y < __x); }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline bool
+    operator>=(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	       const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    { return !(__x < __y); }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline void
+    swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+	 _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
+    { __x.swap(__y); }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    operator=(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x)
+    {
+      if (this != &__x)
+	{
+	  // Note that _Key may be a constant type.
+	  clear();
+	  _M_impl._M_key_compare = __x._M_impl._M_key_compare;
+	  if (__x._M_root() != 0)
+	    {
+	      _M_root() = _M_copy(__x._M_begin(), _M_end());
+	      _M_leftmost() = _S_minimum(_M_root());
+	      _M_rightmost() = _S_maximum(_M_root());
+	      _M_impl._M_node_count = __x._M_impl._M_node_count;
+	    }
+	}
+      return *this;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert(_Base_ptr __x, _Base_ptr __p, const _Val& __v)
+    {
+      bool __insert_left = (__x != 0 || __p == _M_end()
+			    || _M_impl._M_key_compare(_KeyOfValue()(__v), 
+						      _S_key(__p)));
+
+      _Link_type __z = _M_create_node(__v);
+
+      _Rb_tree_insert_and_rebalance(__insert_left, __z, __p,  
+				    this->_M_impl._M_header);
+      ++_M_impl._M_node_count;
+      return iterator(__z);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_lower(_Base_ptr __x, _Base_ptr __p, const _Val& __v)
+    {
+      bool __insert_left = (__x != 0 || __p == _M_end()
+			    || !_M_impl._M_key_compare(_S_key(__p),
+						       _KeyOfValue()(__v)));
+
+      _Link_type __z = _M_create_node(__v);
+
+      _Rb_tree_insert_and_rebalance(__insert_left, __z, __p,  
+				    this->_M_impl._M_header);
+      ++_M_impl._M_node_count;
+      return iterator(__z);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::const_iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert(_Const_Base_ptr __x, _Const_Base_ptr __p, const _Val& __v)
+    {
+      bool __insert_left = (__x != 0 || __p == _M_end()
+			    || _M_impl._M_key_compare(_KeyOfValue()(__v), 
+						      _S_key(__p)));
+
+      _Link_type __z = _M_create_node(__v);
+
+      _Rb_tree_insert_and_rebalance(__insert_left, __z,
+				    const_cast<_Base_ptr>(__p),  
+				    this->_M_impl._M_header);
+      ++_M_impl._M_node_count;
+      return const_iterator(__z);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_equal(const _Val& __v)
+    {
+      _Link_type __x = _M_begin();
+      _Link_type __y = _M_end();
+      while (__x != 0)
+	{
+	  __y = __x;
+	  __x = _M_impl._M_key_compare(_KeyOfValue()(__v), _S_key(__x)) ?
+	        _S_left(__x) : _S_right(__x);
+	}
+      return _M_insert(__x, __y, __v);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_equal_lower(const _Val& __v)
+    {
+      _Link_type __x = _M_begin();
+      _Link_type __y = _M_end();
+      while (__x != 0)
+	{
+	  __y = __x;
+	  __x = !_M_impl._M_key_compare(_S_key(__x), _KeyOfValue()(__v)) ?
+	        _S_left(__x) : _S_right(__x);
+	}
+      return _M_insert_lower(__x, __y, __v);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __t)
+    {
+      if (_M_root() == 0)
+	{
+	  if (__t._M_root() != 0)
+	    {
+	      _M_root() = __t._M_root();
+	      _M_leftmost() = __t._M_leftmost();
+	      _M_rightmost() = __t._M_rightmost();
+	      _M_root()->_M_parent = _M_end();
+	      
+	      __t._M_root() = 0;
+	      __t._M_leftmost() = __t._M_end();
+	      __t._M_rightmost() = __t._M_end();
+	    }
+	}
+      else if (__t._M_root() == 0)
+	{
+	  __t._M_root() = _M_root();
+	  __t._M_leftmost() = _M_leftmost();
+	  __t._M_rightmost() = _M_rightmost();
+	  __t._M_root()->_M_parent = __t._M_end();
+	  
+	  _M_root() = 0;
+	  _M_leftmost() = _M_end();
+	  _M_rightmost() = _M_end();
+	}
+      else
+	{
+	  std::swap(_M_root(),__t._M_root());
+	  std::swap(_M_leftmost(),__t._M_leftmost());
+	  std::swap(_M_rightmost(),__t._M_rightmost());
+	  
+	  _M_root()->_M_parent = _M_end();
+	  __t._M_root()->_M_parent = __t._M_end();
+	}
+      // No need to swap header's color as it does not change.
+      std::swap(this->_M_impl._M_node_count, __t._M_impl._M_node_count);
+      std::swap(this->_M_impl._M_key_compare, __t._M_impl._M_key_compare);
+      
+      // _GLIBCXX_RESOLVE_LIB_DEFECTS
+      // 431. Swapping containers with unequal allocators.
+      std::__alloc_swap<_Node_allocator>::
+	_S_do_it(_M_get_Node_allocator(), __t._M_get_Node_allocator());
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+			   _Compare, _Alloc>::iterator, bool>
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_unique(const _Val& __v)
+    {
+      _Link_type __x = _M_begin();
+      _Link_type __y = _M_end();
+      bool __comp = true;
+      while (__x != 0)
+	{
+	  __y = __x;
+	  __comp = _M_impl._M_key_compare(_KeyOfValue()(__v), _S_key(__x));
+	  __x = __comp ? _S_left(__x) : _S_right(__x);
+	}
+      iterator __j = iterator(__y);
+      if (__comp)
+	if (__j == begin())
+	  return pair<iterator,bool>(_M_insert(__x, __y, __v), true);
+	else
+	  --__j;
+      if (_M_impl._M_key_compare(_S_key(__j._M_node), _KeyOfValue()(__v)))
+	return pair<iterator, bool>(_M_insert(__x, __y, __v), true);
+      return pair<iterator, bool>(__j, false);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_unique(iterator __position, const _Val& __v)
+    {
+      // end()
+      if (__position._M_node == _M_end())
+	{
+	  if (size() > 0
+	      && _M_impl._M_key_compare(_S_key(_M_rightmost()), 
+					_KeyOfValue()(__v)))
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else
+	    return _M_insert_unique(__v).first;
+	}
+      else if (_M_impl._M_key_compare(_KeyOfValue()(__v),
+				      _S_key(__position._M_node)))
+	{
+	  // First, try before...
+	  iterator __before = __position;
+	  if (__position._M_node == _M_leftmost()) // begin()
+	    return _M_insert(_M_leftmost(), _M_leftmost(), __v);
+	  else if (_M_impl._M_key_compare(_S_key((--__before)._M_node), 
+					  _KeyOfValue()(__v)))
+	    {
+	      if (_S_right(__before._M_node) == 0)
+		return _M_insert(0, __before._M_node, __v);
+	      else
+		return _M_insert(__position._M_node,
+				 __position._M_node, __v);
+	    }
+	  else
+	    return _M_insert_unique(__v).first;
+	}
+      else if (_M_impl._M_key_compare(_S_key(__position._M_node),
+				      _KeyOfValue()(__v)))
+	{
+	  // ... then try after.
+	  iterator __after = __position;
+	  if (__position._M_node == _M_rightmost())
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else if (_M_impl._M_key_compare(_KeyOfValue()(__v),
+					  _S_key((++__after)._M_node)))
+	    {
+	      if (_S_right(__position._M_node) == 0)
+		return _M_insert(0, __position._M_node, __v);
+	      else
+		return _M_insert(__after._M_node, __after._M_node, __v);
+	    }
+	  else
+	    return _M_insert_unique(__v).first;
+	}
+      else
+	return __position; // Equivalent keys.
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::const_iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_unique(const_iterator __position, const _Val& __v)
+    {
+      // end()
+      if (__position._M_node == _M_end())
+	{
+	  if (size() > 0
+	      && _M_impl._M_key_compare(_S_key(_M_rightmost()), 
+					_KeyOfValue()(__v)))
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else
+	    return const_iterator(_M_insert_unique(__v).first);
+	}
+      else if (_M_impl._M_key_compare(_KeyOfValue()(__v),
+				      _S_key(__position._M_node)))
+	{
+	  // First, try before...
+	  const_iterator __before = __position;
+	  if (__position._M_node == _M_leftmost()) // begin()
+	    return _M_insert(_M_leftmost(), _M_leftmost(), __v);
+	  else if (_M_impl._M_key_compare(_S_key((--__before)._M_node), 
+					  _KeyOfValue()(__v)))
+	    {
+	      if (_S_right(__before._M_node) == 0)
+		return _M_insert(0, __before._M_node, __v);
+	      else
+		return _M_insert(__position._M_node,
+				 __position._M_node, __v);
+	    }
+	  else
+	    return const_iterator(_M_insert_unique(__v).first);
+	}
+      else if (_M_impl._M_key_compare(_S_key(__position._M_node),
+				      _KeyOfValue()(__v)))
+	{
+	  // ... then try after.
+	  const_iterator __after = __position;
+	  if (__position._M_node == _M_rightmost())
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else if (_M_impl._M_key_compare(_KeyOfValue()(__v),
+					  _S_key((++__after)._M_node)))
+	    {
+	      if (_S_right(__position._M_node) == 0)
+		return _M_insert(0, __position._M_node, __v);
+	      else
+		return _M_insert(__after._M_node, __after._M_node, __v);
+	    }
+	  else
+	    return const_iterator(_M_insert_unique(__v).first);
+	}
+      else
+	return __position; // Equivalent keys.
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_equal(iterator __position, const _Val& __v)
+    {
+      // end()
+      if (__position._M_node == _M_end())
+	{
+	  if (size() > 0
+	      && !_M_impl._M_key_compare(_KeyOfValue()(__v),
+					 _S_key(_M_rightmost())))
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else
+	    return _M_insert_equal(__v);
+	}
+      else if (!_M_impl._M_key_compare(_S_key(__position._M_node),
+				       _KeyOfValue()(__v)))
+	{
+	  // First, try before...
+	  iterator __before = __position;
+	  if (__position._M_node == _M_leftmost()) // begin()
+	    return _M_insert(_M_leftmost(), _M_leftmost(), __v);
+	  else if (!_M_impl._M_key_compare(_KeyOfValue()(__v),
+					   _S_key((--__before)._M_node)))
+	    {
+	      if (_S_right(__before._M_node) == 0)
+		return _M_insert(0, __before._M_node, __v);
+	      else
+		return _M_insert(__position._M_node,
+				 __position._M_node, __v);
+	    }
+	  else
+	    return _M_insert_equal(__v);
+	}
+      else
+	{
+	  // ... then try after.  
+	  iterator __after = __position;
+	  if (__position._M_node == _M_rightmost())
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else if (!_M_impl._M_key_compare(_S_key((++__after)._M_node),
+					   _KeyOfValue()(__v)))
+	    {
+	      if (_S_right(__position._M_node) == 0)
+		return _M_insert(0, __position._M_node, __v);
+	      else
+		return _M_insert(__after._M_node, __after._M_node, __v);
+	    }
+	  else
+	    return _M_insert_equal_lower(__v);
+	}
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::const_iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_insert_equal(const_iterator __position, const _Val& __v)
+    {
+      // end()
+      if (__position._M_node == _M_end())
+	{
+	  if (size() > 0
+	      && !_M_impl._M_key_compare(_KeyOfValue()(__v),
+					 _S_key(_M_rightmost())))
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else
+	    return const_iterator(_M_insert_equal(__v));
+	}
+      else if (!_M_impl._M_key_compare(_S_key(__position._M_node),
+				       _KeyOfValue()(__v)))
+	{
+	  // First, try before...
+	  const_iterator __before = __position;
+	  if (__position._M_node == _M_leftmost()) // begin()
+	    return _M_insert(_M_leftmost(), _M_leftmost(), __v);
+	  else if (!_M_impl._M_key_compare(_KeyOfValue()(__v),
+					   _S_key((--__before)._M_node)))
+	    {
+	      if (_S_right(__before._M_node) == 0)
+		return _M_insert(0, __before._M_node, __v);
+	      else
+		return _M_insert(__position._M_node,
+				 __position._M_node, __v);
+	    }
+	  else
+	    return const_iterator(_M_insert_equal(__v));
+	}
+      else
+	{
+	  // ... then try after.  
+	  const_iterator __after = __position;
+	  if (__position._M_node == _M_rightmost())
+	    return _M_insert(0, _M_rightmost(), __v);
+	  else if (!_M_impl._M_key_compare(_S_key((++__after)._M_node),
+					   _KeyOfValue()(__v)))
+	    {
+	      if (_S_right(__position._M_node) == 0)
+		return _M_insert(0, __position._M_node, __v);
+	      else
+		return _M_insert(__after._M_node, __after._M_node, __v);
+	    }
+	  else
+	    return const_iterator(_M_insert_equal_lower(__v));
+	}
+    }
+
+  template<typename _Key, typename _Val, typename _KoV,
+           typename _Cmp, typename _Alloc>
+    template<class _II>
+      void
+      _Rb_tree<_Key, _Val, _KoV, _Cmp, _Alloc>::
+      _M_insert_equal(_II __first, _II __last)
+      {
+	for (; __first != __last; ++__first)
+	  _M_insert_equal(end(), *__first);
+      }
+
+  template<typename _Key, typename _Val, typename _KoV,
+           typename _Cmp, typename _Alloc>
+    template<class _II>
+      void
+      _Rb_tree<_Key, _Val, _KoV, _Cmp, _Alloc>::
+      _M_insert_unique(_II __first, _II __last)
+      {
+	for (; __first != __last; ++__first)
+	  _M_insert_unique(end(), *__first);
+      }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    erase(iterator __position)
+    {
+      _Link_type __y =
+	static_cast<_Link_type>(_Rb_tree_rebalance_for_erase
+				(__position._M_node,
+				 this->_M_impl._M_header));
+      _M_destroy_node(__y);
+      --_M_impl._M_node_count;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    erase(const_iterator __position)
+    {
+      _Link_type __y =
+	static_cast<_Link_type>(_Rb_tree_rebalance_for_erase
+				(const_cast<_Base_ptr>(__position._M_node),
+				 this->_M_impl._M_header));
+      _M_destroy_node(__y);
+      --_M_impl._M_node_count;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::size_type
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    erase(const _Key& __x)
+    {
+      pair<iterator, iterator> __p = equal_range(__x);
+      const size_type __old_size = size();
+      erase(__p.first, __p.second);
+      return __old_size - size();
+    }
+
+  template<typename _Key, typename _Val, typename _KoV,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::_Link_type
+    _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::
+    _M_copy(_Const_Link_type __x, _Link_type __p)
+    {
+      // Structural copy.  __x and __p must be non-null.
+      _Link_type __top = _M_clone_node(__x);
+      __top->_M_parent = __p;
+
+      try
+	{
+	  if (__x->_M_right)
+	    __top->_M_right = _M_copy(_S_right(__x), __top);
+	  __p = __top;
+	  __x = _S_left(__x);
+
+	  while (__x != 0)
+	    {
+	      _Link_type __y = _M_clone_node(__x);
+	      __p->_M_left = __y;
+	      __y->_M_parent = __p;
+	      if (__x->_M_right)
+		__y->_M_right = _M_copy(_S_right(__x), __y);
+	      __p = __y;
+	      __x = _S_left(__x);
+	    }
+	}
+      catch(...)
+	{
+	  _M_erase(__top);
+	  __throw_exception_again;
+	}
+      return __top;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    _M_erase(_Link_type __x)
+    {
+      // Erase without rebalancing.
+      while (__x != 0)
+	{
+	  _M_erase(_S_right(__x));
+	  _Link_type __y = _S_left(__x);
+	  _M_destroy_node(__x);
+	  __x = __y;
+	}
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    erase(iterator __first, iterator __last)
+    {
+      if (__first == begin() && __last == end())
+	clear();
+      else
+	while (__first != __last)
+	  erase(__first++);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    erase(const_iterator __first, const_iterator __last)
+    {
+      if (__first == begin() && __last == end())
+	clear();
+      else
+	while (__first != __last)
+	  erase(__first++);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    void
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    erase(const _Key* __first, const _Key* __last)
+    {
+      while (__first != __last)
+	erase(*__first++);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    find(const _Key& __k)
+    {
+      _Link_type __x = _M_begin(); // Current node.
+      _Link_type __y = _M_end(); // Last node which is not less than __k.
+
+      while (__x != 0)
+	if (!_M_impl._M_key_compare(_S_key(__x), __k))
+	  __y = __x, __x = _S_left(__x);
+	else
+	  __x = _S_right(__x);
+
+      iterator __j = iterator(__y);
+      return (__j == end()
+	      || _M_impl._M_key_compare(__k,
+					_S_key(__j._M_node))) ? end() : __j;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::const_iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    find(const _Key& __k) const
+    {
+      _Const_Link_type __x = _M_begin(); // Current node.
+      _Const_Link_type __y = _M_end(); // Last node which is not less than __k.
+
+     while (__x != 0)
+       {
+	 if (!_M_impl._M_key_compare(_S_key(__x), __k))
+	   __y = __x, __x = _S_left(__x);
+	 else
+	   __x = _S_right(__x);
+       }
+     const_iterator __j = const_iterator(__y);
+     return (__j == end()
+	     || _M_impl._M_key_compare(__k, 
+				       _S_key(__j._M_node))) ? end() : __j;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::size_type
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    count(const _Key& __k) const
+    {
+      pair<const_iterator, const_iterator> __p = equal_range(__k);
+      const size_type __n = std::distance(__p.first, __p.second);
+      return __n;
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    lower_bound(const _Key& __k)
+    {
+      _Link_type __x = _M_begin(); // Current node.
+      _Link_type __y = _M_end(); // Last node which is not less than __k.
+
+      while (__x != 0)
+	if (!_M_impl._M_key_compare(_S_key(__x), __k))
+	  __y = __x, __x = _S_left(__x);
+	else
+	  __x = _S_right(__x);
+
+      return iterator(__y);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::const_iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    lower_bound(const _Key& __k) const
+    {
+      _Const_Link_type __x = _M_begin(); // Current node.
+      _Const_Link_type __y = _M_end(); // Last node which is not less than __k.
+
+      while (__x != 0)
+	if (!_M_impl._M_key_compare(_S_key(__x), __k))
+	  __y = __x, __x = _S_left(__x);
+	else
+	  __x = _S_right(__x);
+
+      return const_iterator(__y);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    upper_bound(const _Key& __k)
+    {
+      _Link_type __x = _M_begin(); // Current node.
+      _Link_type __y = _M_end(); // Last node which is greater than __k.
+
+      while (__x != 0)
+	if (_M_impl._M_key_compare(__k, _S_key(__x)))
+	  __y = __x, __x = _S_left(__x);
+	else
+	  __x = _S_right(__x);
+
+      return iterator(__y);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::const_iterator
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    upper_bound(const _Key& __k) const
+    {
+      _Const_Link_type __x = _M_begin(); // Current node.
+      _Const_Link_type __y = _M_end(); // Last node which is greater than __k.
+
+      while (__x != 0)
+	if (_M_impl._M_key_compare(__k, _S_key(__x)))
+	  __y = __x, __x = _S_left(__x);
+	else
+	  __x = _S_right(__x);
+
+      return const_iterator(__y);
+    }
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    inline
+    pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+			   _Compare, _Alloc>::iterator,
+	 typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator>
+    _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+    equal_range(const _Key& __k)
+    { return pair<iterator, iterator>(lower_bound(__k), upper_bound(__k)); }
+
+  template<typename _Key, typename _Val, typename _KoV,
+           typename _Compare, typename _Alloc>
+    inline
+    pair<typename _Rb_tree<_Key, _Val, _KoV,
+			   _Compare, _Alloc>::const_iterator,
+	 typename _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::const_iterator>
+    _Rb_tree<_Key, _Val, _KoV, _Compare, _Alloc>::
+    equal_range(const _Key& __k) const
+    { return pair<const_iterator, const_iterator>(lower_bound(__k),
+						  upper_bound(__k)); }
+
+  unsigned int
+  _Rb_tree_black_count(const _Rb_tree_node_base* __node,
+                       const _Rb_tree_node_base* __root);
+
+  template<typename _Key, typename _Val, typename _KeyOfValue,
+           typename _Compare, typename _Alloc>
+    bool
+    _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>::__rb_verify() const
+    {
+      if (_M_impl._M_node_count == 0 || begin() == end())
+	return _M_impl._M_node_count == 0 && begin() == end()
+	       && this->_M_impl._M_header._M_left == _M_end()
+	       && this->_M_impl._M_header._M_right == _M_end();
+
+      unsigned int __len = _Rb_tree_black_count(_M_leftmost(), _M_root());
+      for (const_iterator __it = begin(); __it != end(); ++__it)
+	{
+	  _Const_Link_type __x = static_cast<_Const_Link_type>(__it._M_node);
+	  _Const_Link_type __L = _S_left(__x);
+	  _Const_Link_type __R = _S_right(__x);
+
+	  if (__x->_M_color == _S_red)
+	    if ((__L && __L->_M_color == _S_red)
+		|| (__R && __R->_M_color == _S_red))
+	      return false;
+
+	  if (__L && _M_impl._M_key_compare(_S_key(__x), _S_key(__L)))
+	    return false;
+	  if (__R && _M_impl._M_key_compare(_S_key(__R), _S_key(__x)))
+	    return false;
+
+	  if (!__L && !__R && _Rb_tree_black_count(__x, _M_root()) != __len)
+	    return false;
+	}
+
+      if (_M_leftmost() != _Rb_tree_node_base::_S_minimum(_M_root()))
+	return false;
+      if (_M_rightmost() != _Rb_tree_node_base::_S_maximum(_M_root()))
+	return false;
+      return true;
+    }
+
+_GLIBCXX_END_NAMESPACE
+
+#endif