// RB tree implementation -*- C++ -*-
-// Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+// Copyright (C) 2001-2014 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)
+// 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,
// 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
+// 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.
-// 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.
+// 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 stl_tree.h
+/** @file bits/stl_tree.h
* This is an internal header file, included by other library headers.
- * You should not attempt to use it directly.
+ * Do not attempt to use it directly. @headername{map,set}
*/
-#ifndef _TREE_H
-#define _TREE_H 1
-
-/*
-
-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.
-
-*/
+#ifndef _STL_TREE_H
+#define _STL_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>
+#include <ext/alloc_traits.h>
+#if __cplusplus >= 201103L
+#include <ext/aligned_buffer.h>
+#endif
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // 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.
-namespace std
-{
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)
+
+ _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) _GLIBCXX_NOEXCEPT
{
while (__x->_M_left != 0) __x = __x->_M_left;
return __x;
}
static _Const_Base_ptr
- _S_minimum(_Const_Base_ptr __x)
+ _S_minimum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_left != 0) __x = __x->_M_left;
return __x;
}
- static _Base_ptr
- _S_maximum(_Base_ptr __x)
+ static _Base_ptr
+ _S_maximum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_right != 0) __x = __x->_M_right;
return __x;
}
static _Const_Base_ptr
- _S_maximum(_Const_Base_ptr __x)
+ _S_maximum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{
while (__x->_M_right != 0) __x = __x->_M_right;
return __x;
struct _Rb_tree_node : public _Rb_tree_node_base
{
typedef _Rb_tree_node<_Val>* _Link_type;
+
+#if __cplusplus < 201103L
_Val _M_value_field;
+
+ _Val*
+ _M_valptr()
+ { return std::__addressof(_M_value_field); }
+
+ const _Val*
+ _M_valptr() const
+ { return std::__addressof(_M_value_field); }
+#else
+ __gnu_cxx::__aligned_buffer<_Val> _M_storage;
+
+ _Val*
+ _M_valptr()
+ { return _M_storage._M_ptr(); }
+
+ const _Val*
+ _M_valptr() const
+ { return _M_storage._M_ptr(); }
+#endif
};
-
- _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);
+ _GLIBCXX_PURE _Rb_tree_node_base*
+ _Rb_tree_increment(_Rb_tree_node_base* __x) throw ();
- _Rb_tree_node_base*
- _Rb_tree_decrement(_Rb_tree_node_base* __x);
+ _GLIBCXX_PURE const _Rb_tree_node_base*
+ _Rb_tree_increment(const _Rb_tree_node_base* __x) throw ();
+
+ _GLIBCXX_PURE _Rb_tree_node_base*
+ _Rb_tree_decrement(_Rb_tree_node_base* __x) throw ();
- const _Rb_tree_node_base*
- _Rb_tree_decrement(const _Rb_tree_node_base* __x);
+ _GLIBCXX_PURE const _Rb_tree_node_base*
+ _Rb_tree_decrement(const _Rb_tree_node_base* __x) throw ();
template<typename _Tp>
struct _Rb_tree_iterator
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() {}
- _Rb_tree_iterator(_Link_type __x)
- : _M_node(__x) {}
+ _Rb_tree_iterator() _GLIBCXX_NOEXCEPT
+ : _M_node() { }
- reference
- operator*() const
- { return static_cast<_Link_type>(_M_node)->_M_value_field; }
+ explicit
+ _Rb_tree_iterator(_Link_type __x) _GLIBCXX_NOEXCEPT
+ : _M_node(__x) { }
- pointer
- operator->() const
- { return &static_cast<_Link_type>(_M_node)->_M_value_field; }
+ reference
+ operator*() const _GLIBCXX_NOEXCEPT
+ { return *static_cast<_Link_type>(_M_node)->_M_valptr(); }
- _Self&
- operator++()
- {
+ pointer
+ operator->() const _GLIBCXX_NOEXCEPT
+ { return static_cast<_Link_type> (_M_node)->_M_valptr(); }
+
+ _Self&
+ operator++() _GLIBCXX_NOEXCEPT
+ {
_M_node = _Rb_tree_increment(_M_node);
- return *this;
+ return *this;
}
- _Self
- operator++(int)
+ _Self
+ operator++(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_increment(_M_node);
return __tmp;
}
-
- _Self&
- operator--()
+
+ _Self&
+ operator--() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_decrement(_M_node);
return *this;
}
- _Self
- operator--(int)
+ _Self
+ operator--(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_decrement(_M_node);
}
bool
- operator==(const _Self& __x) const
+ operator==(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node == __x._M_node; }
bool
- operator!=(const _Self& __x) const
+ operator!=(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node != __x._M_node; }
_Base_ptr _M_node;
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() {}
- _Rb_tree_const_iterator(_Link_type __x)
- : _M_node(__x) {}
+ _Rb_tree_const_iterator() _GLIBCXX_NOEXCEPT
+ : _M_node() { }
+
+ explicit
+ _Rb_tree_const_iterator(_Link_type __x) _GLIBCXX_NOEXCEPT
+ : _M_node(__x) { }
- _Rb_tree_const_iterator(const iterator& __it)
- : _M_node(__it._M_node) {}
+ _Rb_tree_const_iterator(const iterator& __it) _GLIBCXX_NOEXCEPT
+ : _M_node(__it._M_node) { }
+
+ iterator
+ _M_const_cast() const _GLIBCXX_NOEXCEPT
+ { return iterator(static_cast<typename iterator::_Link_type>
+ (const_cast<typename iterator::_Base_ptr>(_M_node))); }
reference
- operator*() const
- { return static_cast<_Link_type>(_M_node)->_M_value_field; }
+ operator*() const _GLIBCXX_NOEXCEPT
+ { return *static_cast<_Link_type>(_M_node)->_M_valptr(); }
pointer
- operator->() const
- { return &static_cast<_Link_type>(_M_node)->_M_value_field; }
+ operator->() const _GLIBCXX_NOEXCEPT
+ { return static_cast<_Link_type>(_M_node)->_M_valptr(); }
- _Self&
- operator++()
- {
+ _Self&
+ operator++() _GLIBCXX_NOEXCEPT
+ {
_M_node = _Rb_tree_increment(_M_node);
- return *this;
+ return *this;
}
- _Self
- operator++(int)
+ _Self
+ operator++(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_increment(_M_node);
return __tmp;
}
-
- _Self&
- operator--()
+
+ _Self&
+ operator--() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_decrement(_M_node);
return *this;
}
- _Self
- operator--(int)
+ _Self
+ operator--(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_decrement(_M_node);
}
bool
- operator==(const _Self& __x) const
+ operator==(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node == __x._M_node; }
bool
- operator!=(const _Self& __x) const
+ operator!=(const _Self& __x) const _GLIBCXX_NOEXCEPT
{ return _M_node != __x._M_node; }
_Base_ptr _M_node;
- };
+ };
template<typename _Val>
- inline bool
+ inline bool
operator==(const _Rb_tree_iterator<_Val>& __x,
- const _Rb_tree_const_iterator<_Val>& __y)
+ const _Rb_tree_const_iterator<_Val>& __y) _GLIBCXX_NOEXCEPT
{ return __x._M_node == __y._M_node; }
template<typename _Val>
- inline bool
+ inline bool
operator!=(const _Rb_tree_iterator<_Val>& __x,
- const _Rb_tree_const_iterator<_Val>& __y)
+ const _Rb_tree_const_iterator<_Val>& __y) _GLIBCXX_NOEXCEPT
{ 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,
+ 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& __header) throw ();
_Rb_tree_node_base*
- _Rb_tree_rebalance_for_erase(_Rb_tree_node_base* const __z,
- _Rb_tree_node_base& __header);
+ _Rb_tree_rebalance_for_erase(_Rb_tree_node_base* const __z,
+ _Rb_tree_node_base& __header) throw ();
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc = allocator<_Val> >
class _Rb_tree
- : protected _Alloc::template rebind<_Rb_tree_node<_Val> >::other
{
- typedef typename _Alloc::template rebind<_Rb_tree_node<_Val> >::other
- _Node_allocator;
-
+ typedef typename __gnu_cxx::__alloc_traits<_Alloc>::template
+ rebind<_Rb_tree_node<_Val> >::other _Node_allocator;
+
+ typedef __gnu_cxx::__alloc_traits<_Node_allocator> _Alloc_traits;
+
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;
-
+ typedef _Rb_tree_node_base* _Base_ptr;
+ typedef const _Rb_tree_node_base* _Const_Base_ptr;
+
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;
- allocator_type get_allocator() const {
- return *static_cast<const _Node_allocator*>(this);
- }
+ 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<_Val>* _Link_type;
+ typedef const _Rb_tree_node<_Val>* _Const_Link_type;
+ typedef size_t size_type;
+ typedef ptrdiff_t difference_type;
+ typedef _Alloc allocator_type;
+
+ _Node_allocator&
+ _M_get_Node_allocator() _GLIBCXX_NOEXCEPT
+ { return *static_cast<_Node_allocator*>(&this->_M_impl); }
+ const _Node_allocator&
+ _M_get_Node_allocator() const _GLIBCXX_NOEXCEPT
+ { return *static_cast<const _Node_allocator*>(&this->_M_impl); }
+
+ allocator_type
+ get_allocator() const _GLIBCXX_NOEXCEPT
+ { return allocator_type(_M_get_Node_allocator()); }
+
protected:
- _Rb_tree_node*
- _M_get_node() { return _Node_allocator::allocate(1); }
+ _Link_type
+ _M_get_node()
+ { return _Alloc_traits::allocate(_M_get_Node_allocator(), 1); }
- void
- _M_put_node(_Rb_tree_node* __p) { _Node_allocator::deallocate(__p, 1); }
-
+ void
+ _M_put_node(_Link_type __p) _GLIBCXX_NOEXCEPT
+ { _Alloc_traits::deallocate(_M_get_Node_allocator(), __p, 1); }
+
+#if __cplusplus < 201103L
_Link_type
_M_create_node(const value_type& __x)
{
_Link_type __tmp = _M_get_node();
- try
- { std::_Construct(&__tmp->_M_value_field, __x); }
- catch(...)
+ __try
+ { get_allocator().construct(__tmp->_M_valptr(), __x); }
+ __catch(...)
{
- _M_put_node(__tmp);
- __throw_exception_again;
+ _M_put_node(__tmp);
+ __throw_exception_again;
}
return __tmp;
}
-
- _Link_type
- _M_clone_node(_Const_Link_type __x)
+
+ void
+ _M_destroy_node(_Link_type __p)
{
- _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;
+ get_allocator().destroy(__p->_M_valptr());
+ _M_put_node(__p);
}
+#else
+ template<typename... _Args>
+ _Link_type
+ _M_create_node(_Args&&... __args)
+ {
+ _Link_type __tmp = _M_get_node();
+ __try
+ {
+ ::new(__tmp) _Rb_tree_node<_Val>;
+ _Alloc_traits::construct(_M_get_Node_allocator(),
+ __tmp->_M_valptr(),
+ std::forward<_Args>(__args)...);
+ }
+ __catch(...)
+ {
+ _M_put_node(__tmp);
+ __throw_exception_again;
+ }
+ return __tmp;
+ }
void
- destroy_node(_Link_type __p)
+ _M_destroy_node(_Link_type __p) noexcept
{
- std::_Destroy(&__p->_M_value_field);
+ _Alloc_traits::destroy(_M_get_Node_allocator(), __p->_M_valptr());
+ __p->~_Rb_tree_node<_Val>();
_M_put_node(__p);
}
+#endif
+
+ _Link_type
+ _M_clone_node(_Const_Link_type __x)
+ {
+ _Link_type __tmp = _M_create_node(*__x->_M_valptr());
+ __tmp->_M_color = __x->_M_color;
+ __tmp->_M_left = 0;
+ __tmp->_M_right = 0;
+ return __tmp;
+ }
protected:
- _Rb_tree_node_base _M_header;
- size_type _M_node_count; // keeps track of size of tree
- _Compare _M_key_compare;
-
+ template<typename _Key_compare,
+ bool _Is_pod_comparator = __is_pod(_Key_compare)>
+ 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()
+ : _Node_allocator(), _M_key_compare(), _M_header(),
+ _M_node_count(0)
+ { _M_initialize(); }
+
+ _Rb_tree_impl(const _Key_compare& __comp, const _Node_allocator& __a)
+ : _Node_allocator(__a), _M_key_compare(__comp), _M_header(),
+ _M_node_count(0)
+ { _M_initialize(); }
+
+#if __cplusplus >= 201103L
+ _Rb_tree_impl(const _Key_compare& __comp, _Node_allocator&& __a)
+ : _Node_allocator(std::move(__a)), _M_key_compare(__comp),
+ _M_header(), _M_node_count(0)
+ { _M_initialize(); }
+#endif
+
+ private:
+ void
+ _M_initialize()
+ {
+ 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_header._M_parent; }
+ _M_root() _GLIBCXX_NOEXCEPT
+ { return this->_M_impl._M_header._M_parent; }
_Const_Base_ptr
- _M_root() const { return this->_M_header._M_parent; }
+ _M_root() const _GLIBCXX_NOEXCEPT
+ { return this->_M_impl._M_header._M_parent; }
_Base_ptr&
- _M_leftmost() { return this->_M_header._M_left; }
+ _M_leftmost() _GLIBCXX_NOEXCEPT
+ { return this->_M_impl._M_header._M_left; }
_Const_Base_ptr
- _M_leftmost() const { return this->_M_header._M_left; }
+ _M_leftmost() const _GLIBCXX_NOEXCEPT
+ { return this->_M_impl._M_header._M_left; }
_Base_ptr&
- _M_rightmost() { return this->_M_header._M_right; }
+ _M_rightmost() _GLIBCXX_NOEXCEPT
+ { return this->_M_impl._M_header._M_right; }
_Const_Base_ptr
- _M_rightmost() const { return this->_M_header._M_right; }
+ _M_rightmost() const _GLIBCXX_NOEXCEPT
+ { return this->_M_impl._M_header._M_right; }
_Link_type
- _M_begin() { return static_cast<_Link_type>(this->_M_header._M_parent); }
+ _M_begin() _GLIBCXX_NOEXCEPT
+ { 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_header._M_parent); }
+ _M_begin() const _GLIBCXX_NOEXCEPT
+ {
+ return static_cast<_Const_Link_type>
+ (this->_M_impl._M_header._M_parent);
+ }
_Link_type
- _M_end() { return static_cast<_Link_type>(&this->_M_header); }
+ _M_end() _GLIBCXX_NOEXCEPT
+ { return static_cast<_Link_type>(&this->_M_impl._M_header); }
_Const_Link_type
- _M_end() const { return static_cast<_Const_Link_type>(&this->_M_header); }
+ _M_end() const _GLIBCXX_NOEXCEPT
+ { 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_reference
+ _S_value(_Const_Link_type __x)
+ { return *__x->_M_valptr(); }
- static const _Key&
- _S_key(_Const_Link_type __x) { return _KeyOfValue()(_S_value(__x)); }
+ 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); }
+ _S_left(_Base_ptr __x) _GLIBCXX_NOEXCEPT
+ { 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); }
+ _S_left(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
+ { 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); }
+ _S_right(_Base_ptr __x) _GLIBCXX_NOEXCEPT
+ { 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); }
+ _S_right(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
+ { 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; }
+ _S_value(_Const_Base_ptr __x)
+ { return *static_cast<_Const_Link_type>(__x)->_M_valptr(); }
- static const _Key&
- _S_key(_Const_Base_ptr __x) { return _KeyOfValue()(_S_value(__x)); }
+ static const _Key&
+ _S_key(_Const_Base_ptr __x)
+ { return _KeyOfValue()(_S_value(__x)); }
- static _Base_ptr
- _S_minimum(_Base_ptr __x)
+ static _Base_ptr
+ _S_minimum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_minimum(__x); }
static _Const_Base_ptr
- _S_minimum(_Const_Base_ptr __x)
+ _S_minimum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_minimum(__x); }
static _Base_ptr
- _S_maximum(_Base_ptr __x)
+ _S_maximum(_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_maximum(__x); }
static _Const_Base_ptr
- _S_maximum(_Const_Base_ptr __x)
+ _S_maximum(_Const_Base_ptr __x) _GLIBCXX_NOEXCEPT
{ return _Rb_tree_node_base::_S_maximum(__x); }
public:
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
private:
- iterator
- _M_insert(_Base_ptr __x, _Base_ptr __y, const value_type& __v);
+ pair<_Base_ptr, _Base_ptr>
+ _M_get_insert_unique_pos(const key_type& __k);
+
+ pair<_Base_ptr, _Base_ptr>
+ _M_get_insert_equal_pos(const key_type& __k);
+
+ pair<_Base_ptr, _Base_ptr>
+ _M_get_insert_hint_unique_pos(const_iterator __pos,
+ const key_type& __k);
+
+ pair<_Base_ptr, _Base_ptr>
+ _M_get_insert_hint_equal_pos(const_iterator __pos,
+ const key_type& __k);
+
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+ iterator
+ _M_insert_(_Base_ptr __x, _Base_ptr __y, _Arg&& __v);
+
+ iterator
+ _M_insert_node(_Base_ptr __x, _Base_ptr __y, _Link_type __z);
+
+ template<typename _Arg>
+ iterator
+ _M_insert_lower(_Base_ptr __y, _Arg&& __v);
+
+ template<typename _Arg>
+ iterator
+ _M_insert_equal_lower(_Arg&& __x);
- _Link_type
+ iterator
+ _M_insert_lower_node(_Base_ptr __p, _Link_type __z);
+
+ iterator
+ _M_insert_equal_lower_node(_Link_type __z);
+#else
+ 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 __y, const value_type& __v);
+
+ iterator
+ _M_insert_equal_lower(const value_type& __x);
+#endif
+
+ _Link_type
_M_copy(_Const_Link_type __x, _Link_type __p);
- void
+ void
_M_erase(_Link_type __x);
+ iterator
+ _M_lower_bound(_Link_type __x, _Link_type __y,
+ const _Key& __k);
+
+ const_iterator
+ _M_lower_bound(_Const_Link_type __x, _Const_Link_type __y,
+ const _Key& __k) const;
+
+ iterator
+ _M_upper_bound(_Link_type __x, _Link_type __y,
+ const _Key& __k);
+
+ const_iterator
+ _M_upper_bound(_Const_Link_type __x, _Const_Link_type __y,
+ const _Key& __k) const;
+
public:
// allocation/deallocation
- _Rb_tree()
- : _Node_allocator(allocator_type()),
- _M_node_count(0),
- _M_key_compare()
- { _M_empty_initialize(); }
-
- _Rb_tree(const _Compare& __comp)
- : _Node_allocator(allocator_type()),
- _M_node_count(0),
- _M_key_compare(__comp)
- { _M_empty_initialize(); }
-
- _Rb_tree(const _Compare& __comp, const allocator_type& __a)
- : _Node_allocator(__a),
- _M_node_count(0),
- _M_key_compare(__comp)
- { _M_empty_initialize(); }
-
- _Rb_tree(const _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>& __x)
- : _Node_allocator(__x.get_allocator()),
- _M_node_count(0),
- _M_key_compare(__x._M_key_compare)
- {
- if (__x._M_root() == 0)
- _M_empty_initialize();
- else
+ _Rb_tree() { }
+
+ _Rb_tree(const _Compare& __comp,
+ const allocator_type& __a = allocator_type())
+ : _M_impl(__comp, _Node_allocator(__a)) { }
+
+ _Rb_tree(const _Rb_tree& __x)
+ : _M_impl(__x._M_impl._M_key_compare,
+ _Alloc_traits::_S_select_on_copy(__x._M_get_Node_allocator()))
+ {
+ if (__x._M_root() != 0)
{
- this->_M_header._M_color = _S_red;
_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;
}
- _M_node_count = __x._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);
+#if __cplusplus >= 201103L
+ _Rb_tree(const allocator_type& __a)
+ : _M_impl(_Compare(), _Node_allocator(__a))
+ { }
- private:
- void _M_empty_initialize()
+ _Rb_tree(const _Rb_tree& __x, const allocator_type& __a)
+ : _M_impl(__x._M_impl._M_key_compare, _Node_allocator(__a))
{
- // Used to distinguish header from __root, in iterator.operator++.
- this->_M_header._M_color = _S_red;
- _M_root() = 0;
- _M_leftmost() = _M_end();
- _M_rightmost() = _M_end();
+ 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;
+ }
}
- public:
+ _Rb_tree(_Rb_tree&& __x)
+ : _Rb_tree(std::move(__x), std::move(__x._M_get_Node_allocator()))
+ { }
+
+ _Rb_tree(_Rb_tree&& __x, const allocator_type& __a)
+ : _Rb_tree(std::move(__x), _Node_allocator(__a))
+ { }
+
+ _Rb_tree(_Rb_tree&& __x, _Node_allocator&& __a);
+#endif
+
+ ~_Rb_tree() _GLIBCXX_NOEXCEPT
+ { _M_erase(_M_begin()); }
+
+ _Rb_tree&
+ operator=(const _Rb_tree& __x);
+
// Accessors.
- _Compare
- key_comp() const { return _M_key_compare; }
+ _Compare
+ key_comp() const
+ { return _M_impl._M_key_compare; }
- iterator
- begin() { return static_cast<_Link_type>(this->_M_header._M_left); }
+ iterator
+ begin() _GLIBCXX_NOEXCEPT
+ {
+ return iterator(static_cast<_Link_type>
+ (this->_M_impl._M_header._M_left));
+ }
- const_iterator
- begin() const { return static_cast<_Const_Link_type>(this->_M_header._M_left); }
+ const_iterator
+ begin() const _GLIBCXX_NOEXCEPT
+ {
+ return const_iterator(static_cast<_Const_Link_type>
+ (this->_M_impl._M_header._M_left));
+ }
- iterator
- end() { return static_cast<_Link_type>(&this->_M_header); }
+ iterator
+ end() _GLIBCXX_NOEXCEPT
+ { return iterator(static_cast<_Link_type>(&this->_M_impl._M_header)); }
const_iterator
- end() const { return static_cast<_Const_Link_type>(&this->_M_header); }
+ end() const _GLIBCXX_NOEXCEPT
+ {
+ return const_iterator(static_cast<_Const_Link_type>
+ (&this->_M_impl._M_header));
+ }
- reverse_iterator
- rbegin() { return reverse_iterator(end()); }
+ reverse_iterator
+ rbegin() _GLIBCXX_NOEXCEPT
+ { return reverse_iterator(end()); }
- const_reverse_iterator
- rbegin() const { return const_reverse_iterator(end()); }
+ const_reverse_iterator
+ rbegin() const _GLIBCXX_NOEXCEPT
+ { return const_reverse_iterator(end()); }
- reverse_iterator
- rend() { return reverse_iterator(begin()); }
+ reverse_iterator
+ rend() _GLIBCXX_NOEXCEPT
+ { return reverse_iterator(begin()); }
- const_reverse_iterator
- rend() const { return const_reverse_iterator(begin()); }
-
- bool
- empty() const { return _M_node_count == 0; }
+ const_reverse_iterator
+ rend() const _GLIBCXX_NOEXCEPT
+ { return const_reverse_iterator(begin()); }
- size_type
- size() const { return _M_node_count; }
+ bool
+ empty() const _GLIBCXX_NOEXCEPT
+ { return _M_impl._M_node_count == 0; }
+
+ size_type
+ size() const _GLIBCXX_NOEXCEPT
+ { return _M_impl._M_node_count; }
- size_type
- max_size() const { return size_type(-1); }
+ size_type
+ max_size() const _GLIBCXX_NOEXCEPT
+ { return _Alloc_traits::max_size(_M_get_Node_allocator()); }
+
+ void
+#if __cplusplus >= 201103L
+ swap(_Rb_tree& __t) noexcept(_Alloc_traits::_S_nothrow_swap());
+#else
+ swap(_Rb_tree& __t);
+#endif
- void
- swap(_Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>& __t);
-
// Insert/erase.
- pair<iterator,bool>
- insert_unique(const value_type& __x);
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+ pair<iterator, bool>
+ _M_insert_unique(_Arg&& __x);
- iterator
- insert_equal(const value_type& __x);
+ template<typename _Arg>
+ iterator
+ _M_insert_equal(_Arg&& __x);
- iterator
- insert_unique(iterator __position, const value_type& __x);
+ template<typename _Arg>
+ iterator
+ _M_insert_unique_(const_iterator __position, _Arg&& __x);
- iterator
- insert_equal(iterator __position, const value_type& __x);
+ template<typename _Arg>
+ iterator
+ _M_insert_equal_(const_iterator __position, _Arg&& __x);
+
+ template<typename... _Args>
+ pair<iterator, bool>
+ _M_emplace_unique(_Args&&... __args);
+
+ template<typename... _Args>
+ iterator
+ _M_emplace_equal(_Args&&... __args);
+
+ template<typename... _Args>
+ iterator
+ _M_emplace_hint_unique(const_iterator __pos, _Args&&... __args);
+
+ template<typename... _Args>
+ iterator
+ _M_emplace_hint_equal(const_iterator __pos, _Args&&... __args);
+#else
+ pair<iterator, bool>
+ _M_insert_unique(const value_type& __x);
+
+ iterator
+ _M_insert_equal(const value_type& __x);
+
+ iterator
+ _M_insert_unique_(const_iterator __position, const value_type& __x);
+
+ iterator
+ _M_insert_equal_(const_iterator __position, const value_type& __x);
+#endif
template<typename _InputIterator>
- void
- insert_unique(_InputIterator __first, _InputIterator __last);
+ void
+ _M_insert_unique(_InputIterator __first, _InputIterator __last);
template<typename _InputIterator>
- void
- insert_equal(_InputIterator __first, _InputIterator __last);
+ void
+ _M_insert_equal(_InputIterator __first, _InputIterator __last);
+
+ private:
+ void
+ _M_erase_aux(const_iterator __position);
+
+ void
+ _M_erase_aux(const_iterator __first, const_iterator __last);
+
+ public:
+#if __cplusplus >= 201103L
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 130. Associative erase should return an iterator.
+ _GLIBCXX_ABI_TAG_CXX11
+ iterator
+ erase(const_iterator __position)
+ {
+ const_iterator __result = __position;
+ ++__result;
+ _M_erase_aux(__position);
+ return __result._M_const_cast();
+ }
- void
- erase(iterator __position);
+ // LWG 2059.
+ _GLIBCXX_ABI_TAG_CXX11
+ iterator
+ erase(iterator __position)
+ {
+ iterator __result = __position;
+ ++__result;
+ _M_erase_aux(__position);
+ return __result;
+ }
+#else
+ void
+ erase(iterator __position)
+ { _M_erase_aux(__position); }
- size_type
+ void
+ erase(const_iterator __position)
+ { _M_erase_aux(__position); }
+#endif
+ size_type
erase(const key_type& __x);
- void
- erase(iterator __first, iterator __last);
+#if __cplusplus >= 201103L
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 130. Associative erase should return an iterator.
+ _GLIBCXX_ABI_TAG_CXX11
+ iterator
+ erase(const_iterator __first, const_iterator __last)
+ {
+ _M_erase_aux(__first, __last);
+ return __last._M_const_cast();
+ }
+#else
+ void
+ erase(iterator __first, iterator __last)
+ { _M_erase_aux(__first, __last); }
- void
+ void
+ erase(const_iterator __first, const_iterator __last)
+ { _M_erase_aux(__first, __last); }
+#endif
+ void
erase(const key_type* __first, const key_type* __last);
void
- clear()
+ clear() _GLIBCXX_NOEXCEPT
{
_M_erase(_M_begin());
_M_leftmost() = _M_end();
_M_root() = 0;
_M_rightmost() = _M_end();
- _M_node_count = 0;
+ _M_impl._M_node_count = 0;
}
// Set operations.
- iterator
- find(const key_type& __x);
+ iterator
+ find(const key_type& __k);
- const_iterator
- find(const key_type& __x) const;
+ const_iterator
+ find(const key_type& __k) const;
- size_type
- count(const key_type& __x) const;
+ size_type
+ count(const key_type& __k) const;
- iterator
- lower_bound(const key_type& __x);
+ iterator
+ lower_bound(const key_type& __k)
+ { return _M_lower_bound(_M_begin(), _M_end(), __k); }
- const_iterator
- lower_bound(const key_type& __x) const;
+ const_iterator
+ lower_bound(const key_type& __k) const
+ { return _M_lower_bound(_M_begin(), _M_end(), __k); }
- iterator
- upper_bound(const key_type& __x);
+ iterator
+ upper_bound(const key_type& __k)
+ { return _M_upper_bound(_M_begin(), _M_end(), __k); }
- const_iterator
- upper_bound(const key_type& __x) const;
+ const_iterator
+ upper_bound(const key_type& __k) const
+ { return _M_upper_bound(_M_begin(), _M_end(), __k); }
- pair<iterator,iterator>
- equal_range(const key_type& __x);
+ pair<iterator, iterator>
+ equal_range(const key_type& __k);
- pair<const_iterator, const_iterator>
- equal_range(const key_type& __x) const;
+ pair<const_iterator, const_iterator>
+ equal_range(const key_type& __k) const;
// Debugging.
- bool
+ bool
__rb_verify() const;
+
+#if __cplusplus >= 201103L
+ bool
+ _M_move_assign(_Rb_tree&);
+#endif
};
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)
+ 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() &&
- equal(__x.begin(), __x.end(), __y.begin());
+ return __x.size() == __y.size()
+ && std::equal(__x.begin(), __x.end(), __y.begin());
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)
+ inline bool
+ operator<(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
+ const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
{
- return lexicographical_compare(__x.begin(), __x.end(),
- __y.begin(), __y.end());
+ return std::lexicographical_compare(__x.begin(), __x.end(),
+ __y.begin(), __y.end());
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)
+ 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,
+ 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)
+ 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,
+ 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); }
+ 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,
+ 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); }
+ 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,
+ 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)
+ 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,
+#if __cplusplus >= 201103L
+ 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)
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _Rb_tree(_Rb_tree&& __x, _Node_allocator&& __a)
+ : _M_impl(__x._M_impl._M_key_compare, std::move(__a))
{
- if (this != &__x)
+ if (__x._M_root() != 0)
{
- // Note that _Key may be a constant type.
- clear();
- _M_key_compare = __x._M_key_compare;
- if (__x._M_root() != 0)
+ if (!_Alloc_traits::_S_always_equal()
+ && __x._M_get_Node_allocator() != __a)
{
_M_root() = _M_copy(__x._M_begin(), _M_end());
_M_leftmost() = _S_minimum(_M_root());
_M_rightmost() = _S_maximum(_M_root());
- _M_node_count = __x._M_node_count;
+ _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)
- {
- _Link_type __z = _M_create_node(__v);
- bool __insert_left;
-
- __insert_left = __x != 0 || __p == _M_end() ||
- _M_key_compare(_KeyOfValue()(__v), _S_key(__p));
+ else
+ {
+ _M_root() = __x._M_root();
+ _M_leftmost() = __x._M_leftmost();
+ _M_rightmost() = __x._M_rightmost();
+ _M_root()->_M_parent = _M_end();
- _Rb_tree_insert_and_rebalance(__insert_left, __z, __p, this->_M_header);
- ++_M_node_count;
- return iterator(__z);
- }
+ __x._M_root() = 0;
+ __x._M_leftmost() = __x._M_end();
+ __x._M_rightmost() = __x._M_end();
- 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>::
- insert_equal(const _Val& __v)
- {
- _Link_type __x = _M_begin();
- _Link_type __y = _M_end();
- while (__x != 0)
- {
- __y = __x;
- __x = _M_key_compare(_KeyOfValue()(__v), _S_key(__x)) ?
- _S_left(__x) : _S_right(__x);
+ this->_M_impl._M_node_count = __x._M_impl._M_node_count;
+ __x._M_impl._M_node_count = 0;
+ }
}
- return _M_insert(__x, __y, __v);
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)
+ bool
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_move_assign(_Rb_tree& __x)
{
- if (_M_root() == 0)
- {
- if (__t._M_root() != 0)
+ if (_Alloc_traits::_S_propagate_on_move_assign()
+ || _Alloc_traits::_S_always_equal()
+ || _M_get_Node_allocator() == __x._M_get_Node_allocator())
{
- _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());
+ clear();
+ if (__x._M_root() != 0)
+ {
+ _M_root() = __x._M_root();
+ _M_leftmost() = __x._M_leftmost();
+ _M_rightmost() = __x._M_rightmost();
+ _M_root()->_M_parent = _M_end();
- _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_node_count, __t._M_node_count);
- std::swap(this->_M_key_compare, __t._M_key_compare);
- }
+ __x._M_root() = 0;
+ __x._M_leftmost() = __x._M_end();
+ __x._M_rightmost() = __x._M_end();
- 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>::
- 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_key_compare(_KeyOfValue()(__v), _S_key(__x));
- __x = __comp ? _S_left(__x) : _S_right(__x);
+ this->_M_impl._M_node_count = __x._M_impl._M_node_count;
+ __x._M_impl._M_node_count = 0;
+ }
+ if (_Alloc_traits::_S_propagate_on_move_assign())
+ std::__alloc_on_move(_M_get_Node_allocator(),
+ __x._M_get_Node_allocator());
+ return true;
}
- iterator __j = iterator(__y);
- if (__comp)
- if (__j == begin())
- return pair<iterator,bool>(_M_insert(__x, __y, __v), true);
- else
- --__j;
- if (_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);
+ return false;
}
-
+#endif
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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>&
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- insert_unique(iterator __position, const _Val& __v)
+ operator=(const _Rb_tree& __x)
{
- if (__position._M_node == _M_leftmost())
- {
- // begin()
- if (size() > 0 &&
- _M_key_compare(_KeyOfValue()(__v), _S_key(__position._M_node)))
- return _M_insert(__position._M_node, __position._M_node, __v);
- // first argument just needs to be non-null
- else
- return insert_unique(__v).first;
- }
- else if (__position._M_node == _M_end())
- {
- // end()
- if (_M_key_compare(_S_key(_M_rightmost()), _KeyOfValue()(__v)))
- return _M_insert(0, _M_rightmost(), __v);
- else
- return insert_unique(__v).first;
- }
- else
+ if (this != &__x)
{
- iterator __before = __position;
- --__before;
- if (_M_key_compare(_S_key(__before._M_node), _KeyOfValue()(__v))
- && _M_key_compare(_KeyOfValue()(__v),_S_key(__position._M_node)))
+ // Note that _Key may be a constant type.
+ clear();
+#if __cplusplus >= 201103L
+ if (_Alloc_traits::_S_propagate_on_copy_assign())
{
- 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);
- // first argument just needs to be non-null
- }
- else
- return insert_unique(__v).first;
+ auto& __this_alloc = this->_M_get_Node_allocator();
+ auto& __that_alloc = __x._M_get_Node_allocator();
+ if (!_Alloc_traits::_S_always_equal()
+ && __this_alloc != __that_alloc)
+ {
+ std::__alloc_on_copy(__this_alloc, __that_alloc);
+ }
+ }
+#endif
+ _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,
+ 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>::
- insert_equal(iterator __position, const _Val& __v)
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_(_Base_ptr __x, _Base_ptr __p, _Arg&& __v)
+#else
+ _M_insert_(_Base_ptr __x, _Base_ptr __p, const _Val& __v)
+#endif
{
- if (__position._M_node == _M_leftmost())
- {
- // begin()
- if (size() > 0 &&
- !_M_key_compare(_S_key(__position._M_node), _KeyOfValue()(__v)))
- return _M_insert(__position._M_node, __position._M_node, __v);
- // first argument just needs to be non-null
- else
- return insert_equal(__v);
- }
- else if (__position._M_node == _M_end())
- {
- // end()
- if (!_M_key_compare(_KeyOfValue()(__v), _S_key(_M_rightmost())))
- return _M_insert(0, _M_rightmost(), __v);
- else
- return insert_equal(__v);
- }
- else
- {
- iterator __before = __position;
- --__before;
- if (!_M_key_compare(_KeyOfValue()(__v), _S_key(__before._M_node))
- && !_M_key_compare(_S_key(__position._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);
- // first argument just needs to be non-null
- }
- else
- return insert_equal(__v);
- }
- }
+ bool __insert_left = (__x != 0 || __p == _M_end()
+ || _M_impl._M_key_compare(_KeyOfValue()(__v),
+ _S_key(__p)));
- template<typename _Key, typename _Val, typename _KoV,
- typename _Cmp, typename _Alloc>
- template<class _II>
- void
- _Rb_tree<_Key,_Val,_KoV,_Cmp,_Alloc>::
- insert_equal(_II __first, _II __last)
- {
- for ( ; __first != __last; ++__first)
- insert_equal(*__first);
- }
+ _Link_type __z = _M_create_node(_GLIBCXX_FORWARD(_Arg, __v));
- template<typename _Key, typename _Val, typename _KoV,
- typename _Cmp, typename _Alloc>
- template<class _II>
- void
- _Rb_tree<_Key,_Val,_KoV,_Cmp,_Alloc>::
- insert_unique(_II __first, _II __last)
- {
- for ( ; __first != __last; ++__first)
- insert_unique(*__first);
+ _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,
+ template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- inline void
- _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>::erase(iterator __position)
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_lower(_Base_ptr __p, _Arg&& __v)
+#else
+ _M_insert_lower(_Base_ptr __p, const _Val& __v)
+#endif
{
- _Link_type __y =
- static_cast<_Link_type>(_Rb_tree_rebalance_for_erase(__position._M_node,
- this->_M_header));
- destroy_node(__y);
- --_M_node_count;
+ bool __insert_left = (__p == _M_end()
+ || !_M_impl._M_key_compare(_S_key(__p),
+ _KeyOfValue()(__v)));
+
+ _Link_type __z = _M_create_node(_GLIBCXX_FORWARD(_Arg, __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,
+ 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)
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_equal_lower(_Arg&& __v)
+#else
+ _M_insert_equal_lower(const _Val& __v)
+#endif
{
- pair<iterator,iterator> __p = equal_range(__x);
- size_type __n = std::distance(__p.first, __p.second);
- erase(__p.first, __p.second);
- return __n;
+ _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(__y, _GLIBCXX_FORWARD(_Arg, __v));
}
- template<typename _Key, typename _Val, typename _KoV,
+ 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>::
+ 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
+
+ __try
{
if (__x->_M_right)
__top->_M_right = _M_copy(_S_right(__x), __top);
__p = __top;
__x = _S_left(__x);
-
- while (__x != 0)
+
+ while (__x != 0)
{
_Link_type __y = _M_clone_node(__x);
__p->_M_left = __y;
__x = _S_left(__x);
}
}
- catch(...)
+ __catch(...)
{
_M_erase(__top);
- __throw_exception_again;
+ __throw_exception_again;
}
return __top;
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- void
- _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>::_M_erase(_Link_type __x)
+ void
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_erase(_Link_type __x)
{
// Erase without rebalancing.
- while (__x != 0)
+ while (__x != 0)
{
_M_erase(_S_right(__x));
_Link_type __y = _S_left(__x);
- destroy_node(__x);
+ _M_destroy_node(__x);
__x = __y;
}
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- void
- _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>::
- erase(iterator __first, iterator __last)
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_lower_bound(_Link_type __x, _Link_type __y,
+ const _Key& __k)
{
- if (__first == begin() && __last == end())
- clear();
- else
- while (__first != __last) erase(__first++);
+ 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,
+ 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++);
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::const_iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_lower_bound(_Const_Link_type __x, _Const_Link_type __y,
+ const _Key& __k) const
+ {
+ 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,
+ 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)
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_upper_bound(_Link_type __x, _Link_type __y,
+ 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_key_compare(_S_key(__x), __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);
-
- iterator __j = iterator(__y);
- return (__j == end() || _M_key_compare(__k, _S_key(__j._M_node))) ?
- end() : __j;
+ return iterator(__y);
}
-
- template<typename _Key, typename _Val, typename _KeyOfValue,
+
+ 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
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::const_iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_upper_bound(_Const_Link_type __x, _Const_Link_type __y,
+ 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_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_key_compare(__k, _S_key(__j._M_node))) ?
- end() : __j;
+ 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,
+ 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<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)
{
- pair<const_iterator, const_iterator> __p = equal_range(__k);
- size_type __n = std::distance(__p.first, __p.second);
- return __n;
+ _Link_type __x = _M_begin();
+ _Link_type __y = _M_end();
+ while (__x != 0)
+ {
+ if (_M_impl._M_key_compare(_S_key(__x), __k))
+ __x = _S_right(__x);
+ else if (_M_impl._M_key_compare(__k, _S_key(__x)))
+ __y = __x, __x = _S_left(__x);
+ else
+ {
+ _Link_type __xu(__x), __yu(__y);
+ __y = __x, __x = _S_left(__x);
+ __xu = _S_right(__xu);
+ return pair<iterator,
+ iterator>(_M_lower_bound(__x, __y, __k),
+ _M_upper_bound(__xu, __yu, __k));
+ }
+ }
+ return pair<iterator, iterator>(iterator(__y),
+ iterator(__y));
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::const_iterator,
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::const_iterator>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ equal_range(const _Key& __k) const
{
- _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_key_compare(_S_key(__x), __k))
- __y = __x, __x = _S_left(__x);
- else
- __x = _S_right(__x);
-
- return iterator(__y);
+ _Const_Link_type __x = _M_begin();
+ _Const_Link_type __y = _M_end();
+ while (__x != 0)
+ {
+ if (_M_impl._M_key_compare(_S_key(__x), __k))
+ __x = _S_right(__x);
+ else if (_M_impl._M_key_compare(__k, _S_key(__x)))
+ __y = __x, __x = _S_left(__x);
+ else
+ {
+ _Const_Link_type __xu(__x), __yu(__y);
+ __y = __x, __x = _S_left(__x);
+ __xu = _S_right(__xu);
+ return pair<const_iterator,
+ const_iterator>(_M_lower_bound(__x, __y, __k),
+ _M_upper_bound(__xu, __yu, __k));
+ }
+ }
+ return pair<const_iterator, const_iterator>(const_iterator(__y),
+ const_iterator(__y));
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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
+ void
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __t)
+#if __cplusplus >= 201103L
+ noexcept(_Alloc_traits::_S_nothrow_swap())
+#endif
{
- _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_key_compare(_S_key(__x), __k))
- __y = __x, __x = _S_left(__x);
- else
- __x = _S_right(__x);
-
- return const_iterator(__y);
+ 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);
+
+ _Alloc_traits::_S_on_swap(_M_get_Node_allocator(),
+ __t._M_get_Node_allocator());
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr,
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_get_insert_unique_pos(const key_type& __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_key_compare(__k, _S_key(__x)))
- __y = __x, __x = _S_left(__x);
- else
- __x = _S_right(__x);
-
- return iterator(__y);
+ typedef pair<_Base_ptr, _Base_ptr> _Res;
+ _Link_type __x = _M_begin();
+ _Link_type __y = _M_end();
+ bool __comp = true;
+ while (__x != 0)
+ {
+ __y = __x;
+ __comp = _M_impl._M_key_compare(__k, _S_key(__x));
+ __x = __comp ? _S_left(__x) : _S_right(__x);
+ }
+ iterator __j = iterator(__y);
+ if (__comp)
+ {
+ if (__j == begin())
+ return _Res(__x, __y);
+ else
+ --__j;
+ }
+ if (_M_impl._M_key_compare(_S_key(__j._M_node), __k))
+ return _Res(__x, __y);
+ return _Res(__j._M_node, 0);
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr,
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_get_insert_equal_pos(const key_type& __k)
{
- _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_key_compare(__k, _S_key(__x)))
- __y = __x, __x = _S_left(__x);
- else
- __x = _S_right(__x);
-
- return const_iterator(__y);
+ typedef pair<_Base_ptr, _Base_ptr> _Res;
+ _Link_type __x = _M_begin();
+ _Link_type __y = _M_end();
+ while (__x != 0)
+ {
+ __y = __x;
+ __x = _M_impl._M_key_compare(__k, _S_key(__x)) ?
+ _S_left(__x) : _S_right(__x);
+ }
+ return _Res(__x, __y);
}
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ 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)); }
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::iterator, bool>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_unique(_Arg&& __v)
+#else
+ _M_insert_unique(const _Val& __v)
+#endif
+ {
+ typedef pair<iterator, bool> _Res;
+ pair<_Base_ptr, _Base_ptr> __res
+ = _M_get_insert_unique_pos(_KeyOfValue()(__v));
+
+ if (__res.second)
+ return _Res(_M_insert_(__res.first, __res.second,
+ _GLIBCXX_FORWARD(_Arg, __v)),
+ true);
- template<typename _Key, typename _Val, typename _KoV,
+ return _Res(iterator(static_cast<_Link_type>(__res.first)), false);
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
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));
- }
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_equal(_Arg&& __v)
+#else
+ _M_insert_equal(const _Val& __v)
+#endif
+ {
+ pair<_Base_ptr, _Base_ptr> __res
+ = _M_get_insert_equal_pos(_KeyOfValue()(__v));
+ return _M_insert_(__res.first, __res.second, _GLIBCXX_FORWARD(_Arg, __v));
+ }
- 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>
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr,
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_get_insert_hint_unique_pos(const_iterator __position,
+ const key_type& __k)
+ {
+ iterator __pos = __position._M_const_cast();
+ typedef pair<_Base_ptr, _Base_ptr> _Res;
+
+ // end()
+ if (__pos._M_node == _M_end())
+ {
+ if (size() > 0
+ && _M_impl._M_key_compare(_S_key(_M_rightmost()), __k))
+ return _Res(0, _M_rightmost());
+ else
+ return _M_get_insert_unique_pos(__k);
+ }
+ else if (_M_impl._M_key_compare(__k, _S_key(__pos._M_node)))
+ {
+ // First, try before...
+ iterator __before = __pos;
+ if (__pos._M_node == _M_leftmost()) // begin()
+ return _Res(_M_leftmost(), _M_leftmost());
+ else if (_M_impl._M_key_compare(_S_key((--__before)._M_node), __k))
+ {
+ if (_S_right(__before._M_node) == 0)
+ return _Res(0, __before._M_node);
+ else
+ return _Res(__pos._M_node, __pos._M_node);
+ }
+ else
+ return _M_get_insert_unique_pos(__k);
+ }
+ else if (_M_impl._M_key_compare(_S_key(__pos._M_node), __k))
+ {
+ // ... then try after.
+ iterator __after = __pos;
+ if (__pos._M_node == _M_rightmost())
+ return _Res(0, _M_rightmost());
+ else if (_M_impl._M_key_compare(__k, _S_key((++__after)._M_node)))
+ {
+ if (_S_right(__pos._M_node) == 0)
+ return _Res(0, __pos._M_node);
+ else
+ return _Res(__after._M_node, __after._M_node);
+ }
+ else
+ return _M_get_insert_unique_pos(__k);
+ }
+ else
+ // Equivalent keys.
+ return _Res(__pos._M_node, 0);
+ }
- template<typename _Key, typename _Val, typename _KeyOfValue,
+ template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- bool
- _Rb_tree<_Key,_Val,_KeyOfValue,_Compare,_Alloc>::__rb_verify() const
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_unique_(const_iterator __position, _Arg&& __v)
+#else
+ _M_insert_unique_(const_iterator __position, const _Val& __v)
+#endif
+ {
+ pair<_Base_ptr, _Base_ptr> __res
+ = _M_get_insert_hint_unique_pos(__position, _KeyOfValue()(__v));
+
+ if (__res.second)
+ return _M_insert_(__res.first, __res.second,
+ _GLIBCXX_FORWARD(_Arg, __v));
+ return iterator(static_cast<_Link_type>(__res.first));
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr,
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_get_insert_hint_equal_pos(const_iterator __position, const key_type& __k)
{
- if (_M_node_count == 0 || begin() == end())
- return _M_node_count == 0 && begin() == end() &&
- this->_M_header._M_left == _M_end() &&
- this->_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)
+ iterator __pos = __position._M_const_cast();
+ typedef pair<_Base_ptr, _Base_ptr> _Res;
+
+ // end()
+ if (__pos._M_node == _M_end())
+ {
+ if (size() > 0
+ && !_M_impl._M_key_compare(__k, _S_key(_M_rightmost())))
+ return _Res(0, _M_rightmost());
+ else
+ return _M_get_insert_equal_pos(__k);
+ }
+ else if (!_M_impl._M_key_compare(_S_key(__pos._M_node), __k))
+ {
+ // First, try before...
+ iterator __before = __pos;
+ if (__pos._M_node == _M_leftmost()) // begin()
+ return _Res(_M_leftmost(), _M_leftmost());
+ else if (!_M_impl._M_key_compare(__k, _S_key((--__before)._M_node)))
+ {
+ if (_S_right(__before._M_node) == 0)
+ return _Res(0, __before._M_node);
+ else
+ return _Res(__pos._M_node, __pos._M_node);
+ }
+ else
+ return _M_get_insert_equal_pos(__k);
+ }
+ else
+ {
+ // ... then try after.
+ iterator __after = __pos;
+ if (__pos._M_node == _M_rightmost())
+ return _Res(0, _M_rightmost());
+ else if (!_M_impl._M_key_compare(_S_key((++__after)._M_node), __k))
+ {
+ if (_S_right(__pos._M_node) == 0)
+ return _Res(0, __pos._M_node);
+ else
+ return _Res(__after._M_node, __after._M_node);
+ }
+ else
+ return _Res(0, 0);
+ }
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+#if __cplusplus >= 201103L
+ _M_insert_equal_(const_iterator __position, _Arg&& __v)
+#else
+ _M_insert_equal_(const_iterator __position, const _Val& __v)
+#endif
+ {
+ pair<_Base_ptr, _Base_ptr> __res
+ = _M_get_insert_hint_equal_pos(__position, _KeyOfValue()(__v));
+
+ if (__res.second)
+ return _M_insert_(__res.first, __res.second,
+ _GLIBCXX_FORWARD(_Arg, __v));
+
+ return _M_insert_equal_lower(_GLIBCXX_FORWARD(_Arg, __v));
+ }
+
+#if __cplusplus >= 201103L
+ 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_node(_Base_ptr __x, _Base_ptr __p, _Link_type __z)
+ {
+ bool __insert_left = (__x != 0 || __p == _M_end()
+ || _M_impl._M_key_compare(_S_key(__z),
+ _S_key(__p)));
+
+ _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_node(_Base_ptr __p, _Link_type __z)
+ {
+ bool __insert_left = (__p == _M_end()
+ || !_M_impl._M_key_compare(_S_key(__p),
+ _S_key(__z)));
+
+ _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_equal_lower_node(_Link_type __z)
+ {
+ _Link_type __x = _M_begin();
+ _Link_type __y = _M_end();
+ while (__x != 0)
+ {
+ __y = __x;
+ __x = !_M_impl._M_key_compare(_S_key(__x), _S_key(__z)) ?
+ _S_left(__x) : _S_right(__x);
+ }
+ return _M_insert_lower_node(__y, __z);
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ template<typename... _Args>
+ pair<typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::iterator, bool>
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_emplace_unique(_Args&&... __args)
{
- _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;
+ _Link_type __z = _M_create_node(std::forward<_Args>(__args)...);
+
+ __try
+ {
+ typedef pair<iterator, bool> _Res;
+ auto __res = _M_get_insert_unique_pos(_S_key(__z));
+ if (__res.second)
+ return _Res(_M_insert_node(__res.first, __res.second, __z), true);
- if (__L && _M_key_compare(_S_key(__x), _S_key(__L)))
- return false;
- if (__R && _M_key_compare(_S_key(__R), _S_key(__x)))
- return false;
+ _M_destroy_node(__z);
+ return _Res(iterator(static_cast<_Link_type>(__res.first)), false);
+ }
+ __catch(...)
+ {
+ _M_destroy_node(__z);
+ __throw_exception_again;
+ }
+ }
- if (!__L && !__R && _Rb_tree_black_count(__x, _M_root()) != __len)
- return false;
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ template<typename... _Args>
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_emplace_equal(_Args&&... __args)
+ {
+ _Link_type __z = _M_create_node(std::forward<_Args>(__args)...);
+
+ __try
+ {
+ auto __res = _M_get_insert_equal_pos(_S_key(__z));
+ return _M_insert_node(__res.first, __res.second, __z);
+ }
+ __catch(...)
+ {
+ _M_destroy_node(__z);
+ __throw_exception_again;
+ }
}
-
- 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;
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ template<typename... _Args>
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_emplace_hint_unique(const_iterator __pos, _Args&&... __args)
+ {
+ _Link_type __z = _M_create_node(std::forward<_Args>(__args)...);
+
+ __try
+ {
+ auto __res = _M_get_insert_hint_unique_pos(__pos, _S_key(__z));
+
+ if (__res.second)
+ return _M_insert_node(__res.first, __res.second, __z);
+
+ _M_destroy_node(__z);
+ return iterator(static_cast<_Link_type>(__res.first));
+ }
+ __catch(...)
+ {
+ _M_destroy_node(__z);
+ __throw_exception_again;
+ }
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ template<typename... _Args>
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_emplace_hint_equal(const_iterator __pos, _Args&&... __args)
+ {
+ _Link_type __z = _M_create_node(std::forward<_Args>(__args)...);
+
+ __try
+ {
+ auto __res = _M_get_insert_hint_equal_pos(__pos, _S_key(__z));
+
+ if (__res.second)
+ return _M_insert_node(__res.first, __res.second, __z);
+
+ return _M_insert_equal_lower_node(__z);
+ }
+ __catch(...)
+ {
+ _M_destroy_node(__z);
+ __throw_exception_again;
+ }
+ }
+#endif
+
+ 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 _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 _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ void
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_erase_aux(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;
}
-} // namespace std
-#endif
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ void
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_erase_aux(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>
+ 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 _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)
+ {
+ iterator __j = _M_lower_bound(_M_begin(), _M_end(), __k);
+ 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_iterator __j = _M_lower_bound(_M_begin(), _M_end(), __k);
+ 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;
+ }
+
+ _GLIBCXX_PURE unsigned int
+ _Rb_tree_black_count(const _Rb_tree_node_base* __node,
+ const _Rb_tree_node_base* __root) throw ();
+
+ 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_VERSION
+} // namespace
+
+#endif
projects / thirdparty / gcc.git / blobdiff