// RB tree implementation -*- C++ -*-
-// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
-// Free Software Foundation, Inc.
+// Copyright (C) 2001-2015 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-// 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 _STL_TREE_H
#define _STL_TREE_H 1
+#pragma GCC system_header
+
#include <bits/stl_algobase.h>
#include <bits/allocator.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
-_GLIBCXX_BEGIN_NAMESPACE(std)
+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
_Base_ptr _M_right;
static _Base_ptr
- _S_minimum(_Base_ptr __x)
+ _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)
+ _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);
+ _GLIBCXX_PURE _Rb_tree_node_base*
+ _Rb_tree_increment(_Rb_tree_node_base* __x) throw ();
- const _Rb_tree_node_base*
- _Rb_tree_increment(const _Rb_tree_node_base* __x);
+ _GLIBCXX_PURE const _Rb_tree_node_base*
+ _Rb_tree_increment(const _Rb_tree_node_base* __x) throw ();
- _Rb_tree_node_base*
- _Rb_tree_decrement(_Rb_tree_node_base* __x);
+ _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_node_base::_Base_ptr _Base_ptr;
typedef _Rb_tree_node<_Tp>* _Link_type;
- _Rb_tree_iterator()
+ _Rb_tree_iterator() _GLIBCXX_NOEXCEPT
: _M_node() { }
explicit
- _Rb_tree_iterator(_Link_type __x)
+ _Rb_tree_iterator(_Link_type __x) _GLIBCXX_NOEXCEPT
: _M_node(__x) { }
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++()
+ operator++() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_increment(_M_node);
return *this;
}
_Self
- operator++(int)
+ operator++(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_increment(_M_node);
}
_Self&
- operator--()
+ operator--() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_decrement(_M_node);
return *this;
}
_Self
- operator--(int)
+ 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_node_base::_Const_Base_ptr _Base_ptr;
typedef const _Rb_tree_node<_Tp>* _Link_type;
- _Rb_tree_const_iterator()
+ _Rb_tree_const_iterator() _GLIBCXX_NOEXCEPT
: _M_node() { }
explicit
- _Rb_tree_const_iterator(_Link_type __x)
+ _Rb_tree_const_iterator(_Link_type __x) _GLIBCXX_NOEXCEPT
: _M_node(__x) { }
- _Rb_tree_const_iterator(const iterator& __it)
+ _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++()
+ operator++() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_increment(_M_node);
return *this;
}
_Self
- operator++(int)
+ operator++(int) _GLIBCXX_NOEXCEPT
{
_Self __tmp = *this;
_M_node = _Rb_tree_increment(_M_node);
}
_Self&
- operator--()
+ operator--() _GLIBCXX_NOEXCEPT
{
_M_node = _Rb_tree_decrement(_M_node);
return *this;
}
_Self
- operator--(int)
+ 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
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
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_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_node_base& __header) throw ();
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;
+ 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_base* _Base_ptr;
+ typedef const _Rb_tree_node_base* _Const_Base_ptr;
+ typedef _Rb_tree_node<_Val>* _Link_type;
+ typedef const _Rb_tree_node<_Val>* _Const_Link_type;
+
+ private:
+ // Functor recycling a pool of nodes and using allocation once the pool
+ // is empty.
+ struct _Reuse_or_alloc_node
+ {
+ _Reuse_or_alloc_node(_Rb_tree& __t)
+ : _M_root(__t._M_root()), _M_nodes(__t._M_rightmost()), _M_t(__t)
+ {
+ if (_M_root)
+ {
+ _M_root->_M_parent = 0;
+
+ if (_M_nodes->_M_left)
+ _M_nodes = _M_nodes->_M_left;
+ }
+ else
+ _M_nodes = 0;
+ }
+
+#if __cplusplus >= 201103L
+ _Reuse_or_alloc_node(const _Reuse_or_alloc_node&) = delete;
+#endif
+
+ ~_Reuse_or_alloc_node()
+ { _M_t._M_erase(static_cast<_Link_type>(_M_root)); }
+
+ template<typename _Arg>
+ _Link_type
+#if __cplusplus < 201103L
+ operator()(const _Arg& __arg)
+#else
+ operator()(_Arg&& __arg)
+#endif
+ {
+ _Link_type __node = static_cast<_Link_type>(_M_extract());
+ if (__node)
+ {
+ _M_t._M_destroy_node(__node);
+ _M_t._M_construct_node(__node, _GLIBCXX_FORWARD(_Arg, __arg));
+ return __node;
+ }
+
+ return _M_t._M_create_node(_GLIBCXX_FORWARD(_Arg, __arg));
+ }
+
+ private:
+ _Base_ptr
+ _M_extract()
+ {
+ if (!_M_nodes)
+ return _M_nodes;
+
+ _Base_ptr __node = _M_nodes;
+ _M_nodes = _M_nodes->_M_parent;
+ if (_M_nodes)
+ {
+ if (_M_nodes->_M_right == __node)
+ {
+ _M_nodes->_M_right = 0;
+
+ if (_M_nodes->_M_left)
+ {
+ _M_nodes = _M_nodes->_M_left;
+
+ while (_M_nodes->_M_right)
+ _M_nodes = _M_nodes->_M_right;
+
+ if (_M_nodes->_M_left)
+ _M_nodes = _M_nodes->_M_left;
+ }
+ }
+ else // __node is on the left.
+ _M_nodes->_M_left = 0;
+ }
+ else
+ _M_root = 0;
+
+ return __node;
+ }
+
+ _Base_ptr _M_root;
+ _Base_ptr _M_nodes;
+ _Rb_tree& _M_t;
+ };
+
+ // Functor similar to the previous one but without any pool of nodes to
+ // recycle.
+ struct _Alloc_node
+ {
+ _Alloc_node(_Rb_tree& __t)
+ : _M_t(__t) { }
+
+ template<typename _Arg>
+ _Link_type
+#if __cplusplus < 201103L
+ operator()(const _Arg& __arg) const
+#else
+ operator()(_Arg&& __arg) const
+#endif
+ { return _M_t._M_create_node(_GLIBCXX_FORWARD(_Arg, __arg)); }
+
+ private:
+ _Rb_tree& _M_t;
+ };
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<_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;
+ 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 size_t size_type;
+ typedef ptrdiff_t difference_type;
+ typedef _Alloc allocator_type;
_Node_allocator&
- _M_get_Node_allocator()
+ _M_get_Node_allocator() _GLIBCXX_NOEXCEPT
{ return *static_cast<_Node_allocator*>(&this->_M_impl); }
const _Node_allocator&
- _M_get_Node_allocator() const
+ _M_get_Node_allocator() const _GLIBCXX_NOEXCEPT
{ return *static_cast<const _Node_allocator*>(&this->_M_impl); }
allocator_type
- get_allocator() const
+ get_allocator() const _GLIBCXX_NOEXCEPT
{ return allocator_type(_M_get_Node_allocator()); }
protected:
_Link_type
_M_get_node()
- { return _M_impl._Node_allocator::allocate(1); }
+ { return _Alloc_traits::allocate(_M_get_Node_allocator(), 1); }
void
- _M_put_node(_Link_type __p)
- { _M_impl._Node_allocator::deallocate(__p, 1); }
+ _M_put_node(_Link_type __p) _GLIBCXX_NOEXCEPT
+ { _Alloc_traits::deallocate(_M_get_Node_allocator(), __p, 1); }
- _Link_type
- _M_create_node(const value_type& __x)
+#if __cplusplus < 201103L
+ void
+ _M_construct_node(_Link_type __node, const value_type& __x)
{
- _Link_type __tmp = _M_get_node();
- try
- { get_allocator().construct(&__tmp->_M_value_field, __x); }
- catch(...)
+ __try
+ { get_allocator().construct(__node->_M_valptr(), __x); }
+ __catch(...)
{
- _M_put_node(__tmp);
+ _M_put_node(__node);
__throw_exception_again;
}
- return __tmp;
}
_Link_type
- _M_clone_node(_Const_Link_type __x)
+ _M_create_node(const value_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;
+ _Link_type __tmp = _M_get_node();
+ _M_construct_node(__tmp, __x);
return __tmp;
}
void
_M_destroy_node(_Link_type __p)
+ { get_allocator().destroy(__p->_M_valptr()); }
+#else
+ template<typename... _Args>
+ void
+ _M_construct_node(_Link_type __node, _Args&&... __args)
+ {
+ __try
+ {
+ ::new(__node) _Rb_tree_node<_Val>;
+ _Alloc_traits::construct(_M_get_Node_allocator(),
+ __node->_M_valptr(),
+ std::forward<_Args>(__args)...);
+ }
+ __catch(...)
+ {
+ __node->~_Rb_tree_node<_Val>();
+ _M_put_node(__node);
+ __throw_exception_again;
+ }
+ }
+
+ template<typename... _Args>
+ _Link_type
+ _M_create_node(_Args&&... __args)
+ {
+ _Link_type __tmp = _M_get_node();
+ _M_construct_node(__tmp, std::forward<_Args>(__args)...);
+ return __tmp;
+ }
+
+ void
+ _M_destroy_node(_Link_type __p) noexcept
+ {
+ _Alloc_traits::destroy(_M_get_Node_allocator(), __p->_M_valptr());
+ __p->~_Rb_tree_node<_Val>();
+ }
+#endif
+
+ void
+ _M_drop_node(_Link_type __p) _GLIBCXX_NOEXCEPT
{
- get_allocator().destroy(&__p->_M_value_field);
+ _M_destroy_node(__p);
_M_put_node(__p);
}
+ template<typename _NodeGen>
+ _Link_type
+ _M_clone_node(_Const_Link_type __x, _NodeGen& __node_gen)
+ {
+ _Link_type __tmp = __node_gen(*__x->_M_valptr());
+ __tmp->_M_color = __x->_M_color;
+ __tmp->_M_left = 0;
+ __tmp->_M_right = 0;
+ return __tmp;
+ }
+
protected:
- template<typename _Key_compare,
- bool _Is_pod_comparator = __is_pod(_Key_compare)>
+ // Unused _Is_pod_comparator is kept as it is part of mangled name.
+ template<typename _Key_compare,
+ bool /* _Is_pod_comparator */ = __is_pod(_Key_compare)>
struct _Rb_tree_impl : public _Node_allocator
{
_Key_compare _M_key_compare;
_M_node_count(0)
{ _M_initialize(); }
- private:
+#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
+
void
- _M_initialize()
+ _M_reset()
{
- 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()
- : _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(); }
+ this->_M_node_count = 0;
+ }
private:
void
protected:
_Base_ptr&
- _M_root()
+ _M_root() _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_parent; }
_Const_Base_ptr
- _M_root() const
+ _M_root() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_parent; }
_Base_ptr&
- _M_leftmost()
+ _M_leftmost() _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_left; }
_Const_Base_ptr
- _M_leftmost() const
+ _M_leftmost() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_left; }
_Base_ptr&
- _M_rightmost()
+ _M_rightmost() _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_right; }
_Const_Base_ptr
- _M_rightmost() const
+ _M_rightmost() const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_header._M_right; }
_Link_type
- _M_begin()
+ _M_begin() _GLIBCXX_NOEXCEPT
{ return static_cast<_Link_type>(this->_M_impl._M_header._M_parent); }
_Const_Link_type
- _M_begin() const
+ _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_impl._M_header); }
+ _M_end() _GLIBCXX_NOEXCEPT
+ { return reinterpret_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); }
+ _M_end() const _GLIBCXX_NOEXCEPT
+ { return reinterpret_cast<_Const_Link_type>(&this->_M_impl._M_header); }
static const_reference
_S_value(_Const_Link_type __x)
- { return __x->_M_value_field; }
+ { return *__x->_M_valptr(); }
static const _Key&
_S_key(_Const_Link_type __x)
{ return _KeyOfValue()(_S_value(__x)); }
static _Link_type
- _S_left(_Base_ptr __x)
+ _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)
+ _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)
+ _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)
+ _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; }
+ { return *static_cast<_Const_Link_type>(__x)->_M_valptr(); }
static const _Key&
_S_key(_Const_Base_ptr __x)
{ return _KeyOfValue()(_S_value(__x)); }
static _Base_ptr
- _S_minimum(_Base_ptr __x)
+ _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:
+ 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, typename _NodeGen>
+ iterator
+ _M_insert_(_Base_ptr __x, _Base_ptr __y, _Arg&& __v, _NodeGen&);
+
+ 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);
+
+ iterator
+ _M_insert_lower_node(_Base_ptr __p, _Link_type __z);
+
iterator
- _M_insert_(_Const_Base_ptr __x, _Const_Base_ptr __y,
- const value_type& __v);
+ _M_insert_equal_lower_node(_Link_type __z);
+#else
+ template<typename _NodeGen>
+ iterator
+ _M_insert_(_Base_ptr __x, _Base_ptr __y,
+ const value_type& __v, _NodeGen&);
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 233. Insertion hints in associative containers.
iterator
- _M_insert_lower(_Base_ptr __x, _Base_ptr __y, const value_type& __v);
+ _M_insert_lower(_Base_ptr __y, const value_type& __v);
iterator
_M_insert_equal_lower(const value_type& __x);
+#endif
+
+ template<typename _NodeGen>
+ _Link_type
+ _M_copy(_Const_Link_type __x, _Link_type __p, _NodeGen&);
_Link_type
- _M_copy(_Const_Link_type __x, _Link_type __p);
+ _M_copy(_Const_Link_type __x, _Link_type __p)
+ {
+ _Alloc_node __an(*this);
+ return _M_copy(__x, __p, __an);
+ }
void
_M_erase(_Link_type __x);
_Rb_tree(const _Compare& __comp,
const allocator_type& __a = allocator_type())
- : _M_impl(__comp, __a) { }
+ : _M_impl(__comp, _Node_allocator(__a)) { }
_Rb_tree(const _Rb_tree& __x)
- : _M_impl(__x._M_impl._M_key_compare, __x._M_get_Node_allocator())
+ : _M_impl(__x._M_impl._M_key_compare,
+ _Alloc_traits::_S_select_on_copy(__x._M_get_Node_allocator()))
{
if (__x._M_root() != 0)
{
}
}
- ~_Rb_tree()
+#if __cplusplus >= 201103L
+ _Rb_tree(const allocator_type& __a)
+ : _M_impl(_Compare(), _Node_allocator(__a))
+ { }
+
+ _Rb_tree(const _Rb_tree& __x, const allocator_type& __a)
+ : _M_impl(__x._M_impl._M_key_compare, _Node_allocator(__a))
+ {
+ if (__x._M_root() != nullptr)
+ {
+ _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(_Rb_tree&& __x)
+ : _M_impl(__x._M_impl._M_key_compare, __x._M_get_Node_allocator())
+ {
+ if (__x._M_root() != 0)
+ _M_move_data(__x, std::true_type());
+ }
+
+ _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&
{ return _M_impl._M_key_compare; }
iterator
- begin()
+ begin() _GLIBCXX_NOEXCEPT
{
return iterator(static_cast<_Link_type>
(this->_M_impl._M_header._M_left));
}
const_iterator
- begin() const
+ begin() const _GLIBCXX_NOEXCEPT
{
return const_iterator(static_cast<_Const_Link_type>
(this->_M_impl._M_header._M_left));
}
iterator
- end()
+ end() _GLIBCXX_NOEXCEPT
{ return iterator(static_cast<_Link_type>(&this->_M_impl._M_header)); }
const_iterator
- end() const
+ end() const _GLIBCXX_NOEXCEPT
{
return const_iterator(static_cast<_Const_Link_type>
(&this->_M_impl._M_header));
}
reverse_iterator
- rbegin()
+ rbegin() _GLIBCXX_NOEXCEPT
{ return reverse_iterator(end()); }
const_reverse_iterator
- rbegin() const
+ rbegin() const _GLIBCXX_NOEXCEPT
{ return const_reverse_iterator(end()); }
reverse_iterator
- rend()
+ rend() _GLIBCXX_NOEXCEPT
{ return reverse_iterator(begin()); }
const_reverse_iterator
- rend() const
+ rend() const _GLIBCXX_NOEXCEPT
{ return const_reverse_iterator(begin()); }
bool
- empty() const
+ empty() const _GLIBCXX_NOEXCEPT
{ return _M_impl._M_node_count == 0; }
size_type
- size() const
+ size() const _GLIBCXX_NOEXCEPT
{ return _M_impl._M_node_count; }
size_type
- max_size() const
- { return get_allocator().max_size(); }
+ max_size() const _GLIBCXX_NOEXCEPT
+ { return _Alloc_traits::max_size(_M_get_Node_allocator()); }
void
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
- swap(_Rb_tree&& __t);
+#if __cplusplus >= 201103L
+ swap(_Rb_tree& __t) noexcept(_Alloc_traits::_S_nothrow_swap());
#else
- swap(_Rb_tree& __t);
+ swap(_Rb_tree& __t);
#endif
// Insert/erase.
+#if __cplusplus >= 201103L
+ template<typename _Arg>
+ pair<iterator, bool>
+ _M_insert_unique(_Arg&& __x);
+
+ template<typename _Arg>
+ iterator
+ _M_insert_equal(_Arg&& __x);
+
+ template<typename _Arg, typename _NodeGen>
+ iterator
+ _M_insert_unique_(const_iterator __pos, _Arg&& __x, _NodeGen&);
+
+ template<typename _Arg>
+ iterator
+ _M_insert_unique_(const_iterator __pos, _Arg&& __x)
+ {
+ _Alloc_node __an(*this);
+ return _M_insert_unique_(__pos, std::forward<_Arg>(__x), __an);
+ }
+
+ template<typename _Arg, typename _NodeGen>
+ iterator
+ _M_insert_equal_(const_iterator __pos, _Arg&& __x, _NodeGen&);
+
+ template<typename _Arg>
+ iterator
+ _M_insert_equal_(const_iterator __pos, _Arg&& __x)
+ {
+ _Alloc_node __an(*this);
+ return _M_insert_equal_(__pos, std::forward<_Arg>(__x), __an);
+ }
+
+ 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);
+ template<typename _NodeGen>
+ iterator
+ _M_insert_unique_(const_iterator __pos, const value_type& __x,
+ _NodeGen&);
+
iterator
- _M_insert_unique_(const_iterator __position, const value_type& __x);
+ _M_insert_unique_(const_iterator __pos, const value_type& __x)
+ {
+ _Alloc_node __an(*this);
+ return _M_insert_unique_(__pos, __x, __an);
+ }
+ template<typename _NodeGen>
+ iterator
+ _M_insert_equal_(const_iterator __pos, const value_type& __x,
+ _NodeGen&);
iterator
- _M_insert_equal_(const_iterator __position, const value_type& __x);
+ _M_insert_equal_(const_iterator __pos, const value_type& __x)
+ {
+ _Alloc_node __an(*this);
+ return _M_insert_equal_(__pos, __x, __an);
+ }
+#endif
template<typename _InputIterator>
void
void
_M_insert_equal(_InputIterator __first, _InputIterator __last);
+ private:
+ void
+ _M_erase_aux(const_iterator __position);
+
void
- erase(iterator __position);
+ _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();
+ }
+
+ // LWG 2059.
+ _GLIBCXX_ABI_TAG_CXX11
+ iterator
+ erase(iterator __position)
+ {
+ iterator __result = __position;
+ ++__result;
+ _M_erase_aux(__position);
+ return __result;
+ }
+#else
void
- erase(const_iterator __position);
+ erase(iterator __position)
+ { _M_erase_aux(__position); }
+ void
+ erase(const_iterator __position)
+ { _M_erase_aux(__position); }
+#endif
size_type
erase(const key_type& __x);
+#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);
+ erase(iterator __first, iterator __last)
+ { _M_erase_aux(__first, __last); }
void
- erase(const_iterator __first, const_iterator __last);
-
+ 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_impl._M_node_count = 0;
+ _M_impl._M_reset();
}
// Set operations.
pair<const_iterator, const_iterator>
equal_range(const key_type& __k) const;
+#if __cplusplus > 201103L
+ template<typename _Cmp, typename _Kt, typename = __void_t<>>
+ struct __is_transparent { };
+
+ template<typename _Cmp, typename _Kt>
+ struct
+ __is_transparent<_Cmp, _Kt, __void_t<typename _Cmp::is_transparent>>
+ { typedef void type; };
+
+ static auto _S_iter(_Link_type __x) { return iterator(__x); }
+
+ static auto _S_iter(_Const_Link_type __x) { return const_iterator(__x); }
+
+ template<typename _Cmp, typename _Link, typename _Kt>
+ static auto
+ _S_lower_bound_tr(_Cmp& __cmp, _Link __x, _Link __y, const _Kt& __k)
+ {
+ while (__x != 0)
+ if (!__cmp(_S_key(__x), __k))
+ __y = __x, __x = _S_left(__x);
+ else
+ __x = _S_right(__x);
+ return _S_iter(__y);
+ }
+
+ template<typename _Cmp, typename _Link, typename _Kt>
+ static auto
+ _S_upper_bound_tr(_Cmp& __cmp, _Link __x, _Link __y, const _Kt& __k)
+ {
+ while (__x != 0)
+ if (__cmp(__k, _S_key(__x)))
+ __y = __x, __x = _S_left(__x);
+ else
+ __x = _S_right(__x);
+ return _S_iter(__y);
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ iterator
+ _M_find_tr(const _Kt& __k)
+ {
+ auto& __cmp = _M_impl._M_key_compare;
+ auto __j = _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
+ return (__j == end() || __cmp(__k, _S_key(__j._M_node)))
+ ? end() : __j;
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ const_iterator
+ _M_find_tr(const _Kt& __k) const
+ {
+ auto& __cmp = _M_impl._M_key_compare;
+ auto __j = _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
+ return (__j == end() || __cmp(__k, _S_key(__j._M_node)))
+ ? end() : __j;
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ size_type
+ _M_count_tr(const _Kt& __k) const
+ {
+ auto __p = _M_equal_range_tr(__k);
+ return std::distance(__p.first, __p.second);
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ iterator
+ _M_lower_bound_tr(const _Kt& __k)
+ {
+ auto& __cmp = _M_impl._M_key_compare;
+ return _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ const_iterator
+ _M_lower_bound_tr(const _Kt& __k) const
+ {
+ auto& __cmp = _M_impl._M_key_compare;
+ return _S_lower_bound_tr(__cmp, _M_begin(), _M_end(), __k);
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ iterator
+ _M_upper_bound_tr(const _Kt& __k)
+ {
+ auto& __cmp = _M_impl._M_key_compare;
+ return _S_upper_bound_tr(__cmp, _M_begin(), _M_end(), __k);
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ const_iterator
+ _M_upper_bound_tr(const _Kt& __k) const
+ {
+ auto& __cmp = _M_impl._M_key_compare;
+ return _S_upper_bound_tr(__cmp, _M_begin(), _M_end(), __k);
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ pair<iterator, iterator>
+ _M_equal_range_tr(const _Kt& __k)
+ {
+ auto __low = _M_lower_bound_tr(__k);
+ auto __high = __low;
+ auto& __cmp = _M_impl._M_key_compare;
+ while (__high != end() && !__cmp(__k, _S_key(__high._M_node)))
+ ++__high;
+ return { __low, __high };
+ }
+
+ template<typename _Kt,
+ typename _Req = typename __is_transparent<_Compare, _Kt>::type>
+ pair<const_iterator, const_iterator>
+ _M_equal_range_tr(const _Kt& __k) const
+ {
+ auto __low = _M_lower_bound_tr(__k);
+ auto __high = __low;
+ auto& __cmp = _M_impl._M_key_compare;
+ while (__high != end() && !__cmp(__k, _S_key(__high._M_node)))
+ ++__high;
+ return { __low, __high };
+ }
+#endif
+
// Debugging.
bool
__rb_verify() const;
+
+#if __cplusplus >= 201103L
+ _Rb_tree&
+ operator=(_Rb_tree&&) noexcept(_Alloc_traits::_S_nothrow_move());
+
+ template<typename _Iterator>
+ void
+ _M_assign_unique(_Iterator, _Iterator);
+
+ template<typename _Iterator>
+ void
+ _M_assign_equal(_Iterator, _Iterator);
+
+ private:
+ // Move elements from container with equal allocator.
+ void
+ _M_move_data(_Rb_tree&, std::true_type);
+
+ // Move elements from container with possibly non-equal allocator,
+ // which might result in a copy not a move.
+ void
+ _M_move_data(_Rb_tree&, std::false_type);
+#endif
};
template<typename _Key, typename _Val, typename _KeyOfValue,
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __y)
{ __x.swap(__y); }
+#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(_Rb_tree&& __x, _Node_allocator&& __a)
+ : _M_impl(__x._M_impl._M_key_compare, std::move(__a))
{
- 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;
+ using __eq = integral_constant<bool, _Alloc_traits::_S_always_equal()>;
+ if (__x._M_root() != nullptr)
+ _M_move_data(__x, __eq());
}
template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ void
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- _M_insert_(_Const_Base_ptr __x, _Const_Base_ptr __p, const _Val& __v)
+ _M_move_data(_Rb_tree& __x, std::true_type)
{
- bool __insert_left = (__x != 0 || __p == _M_end()
- || _M_impl._M_key_compare(_KeyOfValue()(__v),
- _S_key(__p)));
+ _M_root() = __x._M_root();
+ _M_leftmost() = __x._M_leftmost();
+ _M_rightmost() = __x._M_rightmost();
+ _M_root()->_M_parent = _M_end();
- _Link_type __z = _M_create_node(__v);
+ __x._M_root() = 0;
+ __x._M_leftmost() = __x._M_end();
+ __x._M_rightmost() = __x._M_end();
- _Rb_tree_insert_and_rebalance(__insert_left, __z,
- const_cast<_Base_ptr>(__p),
- this->_M_impl._M_header);
- ++_M_impl._M_node_count;
- return iterator(__z);
+ this->_M_impl._M_node_count = __x._M_impl._M_node_count;
+ __x._M_impl._M_node_count = 0;
}
template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ void
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- _M_insert_lower(_Base_ptr __x, _Base_ptr __p, const _Val& __v)
+ _M_move_data(_Rb_tree& __x, std::false_type)
{
- 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);
+ if (_M_get_Node_allocator() == __x._M_get_Node_allocator())
+ _M_move_data(__x, std::true_type());
+ else
+ {
+ _Alloc_node __an(*this);
+ auto __lbd =
+ [&__an](const value_type& __cval)
+ {
+ auto& __val = const_cast<value_type&>(__cval);
+ return __an(std::move_if_noexcept(__val));
+ };
+ _M_root() = _M_copy(__x._M_begin(), _M_end(), __lbd);
+ _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_insert_and_rebalance(__insert_left, __z, __p,
- this->_M_impl._M_header);
+ 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=(_Rb_tree&& __x)
+ noexcept(_Alloc_traits::_S_nothrow_move())
+ {
+ _M_impl._M_key_compare = __x._M_impl._M_key_compare;
+ if (_Alloc_traits::_S_propagate_on_move_assign()
+ || _Alloc_traits::_S_always_equal()
+ || _M_get_Node_allocator() == __x._M_get_Node_allocator())
+ {
+ clear();
+ if (__x._M_root() != nullptr)
+ _M_move_data(__x, std::true_type());
+ std::__alloc_on_move(_M_get_Node_allocator(),
+ __x._M_get_Node_allocator());
+ return *this;
+ }
+
+ // Try to move each node reusing existing nodes and copying __x nodes
+ // structure.
+ _Reuse_or_alloc_node __roan(*this);
+ _M_impl._M_reset();
+ if (__x._M_root() != nullptr)
+ {
+ auto __lbd =
+ [&__roan](const value_type& __cval)
+ {
+ auto& __val = const_cast<value_type&>(__cval);
+ return __roan(std::move_if_noexcept(__val));
+ };
+ _M_root() = _M_copy(__x._M_begin(), _M_end(), __lbd);
+ _M_leftmost() = _S_minimum(_M_root());
+ _M_rightmost() = _S_maximum(_M_root());
+ _M_impl._M_node_count = __x._M_impl._M_node_count;
+ __x.clear();
+ }
+ return *this;
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ template<typename _Iterator>
+ void
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_assign_unique(_Iterator __first, _Iterator __last)
+ {
+ _Reuse_or_alloc_node __roan(*this);
+ _M_impl._M_reset();
+ for (; __first != __last; ++__first)
+ _M_insert_unique_(end(), *__first, __roan);
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+ template<typename _Iterator>
+ void
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_assign_equal(_Iterator __first, _Iterator __last)
+ {
+ _Reuse_or_alloc_node __roan(*this);
+ _M_impl._M_reset();
+ for (; __first != __last; ++__first)
+ _M_insert_equal_(end(), *__first, __roan);
+ }
+#endif
+
+ 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& __x)
+ {
+ if (this != &__x)
+ {
+ // Note that _Key may be a constant type.
+#if __cplusplus >= 201103L
+ if (_Alloc_traits::_S_propagate_on_copy_assign())
+ {
+ 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)
+ {
+ // Replacement allocator cannot free existing storage, we need
+ // to erase nodes first.
+ clear();
+ std::__alloc_on_copy(__this_alloc, __that_alloc);
+ }
+ }
+#endif
+
+ _Reuse_or_alloc_node __roan(*this);
+ _M_impl._M_reset();
+ _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(), __roan);
+ _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>
+#if __cplusplus >= 201103L
+ template<typename _Arg, typename _NodeGen>
+#else
+ template<typename _NodeGen>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_insert_(_Base_ptr __x, _Base_ptr __p,
+#if __cplusplus >= 201103L
+ _Arg&& __v,
+#else
+ const _Val& __v,
+#endif
+ _NodeGen& __node_gen)
+ {
+ bool __insert_left = (__x != 0 || __p == _M_end()
+ || _M_impl._M_key_compare(_KeyOfValue()(__v),
+ _S_key(__p)));
+
+ _Link_type __z = __node_gen(_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,
+ 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_lower(_Base_ptr __p, _Arg&& __v)
+#else
+ _M_insert_lower(_Base_ptr __p, const _Val& __v)
+#endif
+ {
+ 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,
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_lower(_Arg&& __v)
+#else
_M_insert_equal_lower(const _Val& __v)
+#endif
{
_Link_type __x = _M_begin();
_Link_type __y = _M_end();
__x = !_M_impl._M_key_compare(_S_key(__x), _KeyOfValue()(__v)) ?
_S_left(__x) : _S_right(__x);
}
- return _M_insert_lower(__x, __y, __v);
+ return _M_insert_lower(__y, _GLIBCXX_FORWARD(_Arg, __v));
}
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);
+ typename _Compare, typename _Alloc>
+ template<typename _NodeGen>
+ 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, _NodeGen& __node_gen)
+ {
+ // Structural copy. __x and __p must be non-null.
+ _Link_type __top = _M_clone_node(__x, __node_gen);
+ __top->_M_parent = __p;
- 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;
- }
+ __try
+ {
+ if (__x->_M_right)
+ __top->_M_right = _M_copy(_S_right(__x), __top, __node_gen);
+ __p = __top;
+ __x = _S_left(__x);
+
+ while (__x != 0)
+ {
+ _Link_type __y = _M_clone_node(__x, __node_gen);
+ __p->_M_left = __y;
+ __y->_M_parent = __p;
+ if (__x->_M_right)
+ __y->_M_right = _M_copy(_S_right(__x), __y, __node_gen);
+ __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>
{
_M_erase(_S_right(__x));
_Link_type __y = _S_left(__x);
- _M_destroy_node(__x);
+ _M_drop_node(__x);
__x = __y;
}
}
typename _Compare, typename _Alloc>
void
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
-#ifdef __GXX_EXPERIMENTAL_CXX0X__
- swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&& __t)
-#else
swap(_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __t)
+#if __cplusplus >= 201103L
+ noexcept(_Alloc_traits::_S_nothrow_swap())
#endif
{
if (_M_root() == 0)
_M_leftmost() = __t._M_leftmost();
_M_rightmost() = __t._M_rightmost();
_M_root()->_M_parent = _M_end();
+ _M_impl._M_node_count = __t._M_impl._M_node_count;
- __t._M_root() = 0;
- __t._M_leftmost() = __t._M_end();
- __t._M_rightmost() = __t._M_end();
+ __t._M_impl._M_reset();
}
}
else if (__t._M_root() == 0)
__t._M_leftmost() = _M_leftmost();
__t._M_rightmost() = _M_rightmost();
__t._M_root()->_M_parent = __t._M_end();
+ __t._M_impl._M_node_count = _M_impl._M_node_count;
- _M_root() = 0;
- _M_leftmost() = _M_end();
- _M_rightmost() = _M_end();
+ _M_impl._M_reset();
}
else
{
_M_root()->_M_parent = _M_end();
__t._M_root()->_M_parent = __t._M_end();
+ std::swap(this->_M_impl._M_node_count, __t._M_impl._M_node_count);
}
// 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());
+
+ _Alloc_traits::_S_on_swap(_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>
+ _Compare, _Alloc>::_Base_ptr,
+ typename _Rb_tree<_Key, _Val, _KeyOfValue,
+ _Compare, _Alloc>::_Base_ptr>
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- _M_insert_unique(const _Val& __v)
+ _M_get_insert_unique_pos(const key_type& __k)
{
+ 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(_KeyOfValue()(__v), _S_key(__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 pair<iterator, bool>(_M_insert_(__x, __y, __v), true);
+ return _Res(__x, __y);
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);
+ 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,
typename _Compare, typename _Alloc>
- typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ 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_insert_equal(const _Val& __v)
+ _M_get_insert_equal_pos(const key_type& __k)
{
+ 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(_KeyOfValue()(__v), _S_key(__x)) ?
+ __x = _M_impl._M_key_compare(__k, _S_key(__x)) ?
_S_left(__x) : _S_right(__x);
}
- return _M_insert_(__x, __y, __v);
+ return _Res(__x, __y);
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+#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)
+ {
+ _Alloc_node __an(*this);
+ return _Res(_M_insert_(__res.first, __res.second,
+ _GLIBCXX_FORWARD(_Arg, __v), __an),
+ true);
+ }
+
+ return _Res(iterator(static_cast<_Link_type>(__res.first)), false);
}
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>::
- _M_insert_unique_(const_iterator __position, const _Val& __v)
+#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));
+ _Alloc_node __an(*this);
+ return _M_insert_(__res.first, __res.second,
+ _GLIBCXX_FORWARD(_Arg, __v), __an);
+ }
+
+ 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 (__position._M_node == _M_end())
+ if (__pos._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);
+ && _M_impl._M_key_compare(_S_key(_M_rightmost()), __k))
+ return _Res(0, _M_rightmost());
else
- return _M_insert_unique(__v).first;
+ return _M_get_insert_unique_pos(__k);
}
- else if (_M_impl._M_key_compare(_KeyOfValue()(__v),
- _S_key(__position._M_node)))
+ else if (_M_impl._M_key_compare(__k, _S_key(__pos._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)))
+ 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 _M_insert_(0, __before._M_node, __v);
+ return _Res(0, __before._M_node);
else
- return _M_insert_(__position._M_node,
- __position._M_node, __v);
+ return _Res(__pos._M_node, __pos._M_node);
}
else
- return _M_insert_unique(__v).first;
+ return _M_get_insert_unique_pos(__k);
}
- else if (_M_impl._M_key_compare(_S_key(__position._M_node),
- _KeyOfValue()(__v)))
+ else if (_M_impl._M_key_compare(_S_key(__pos._M_node), __k))
{
// ... 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)))
+ 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(__position._M_node) == 0)
- return _M_insert_(0, __position._M_node, __v);
+ if (_S_right(__pos._M_node) == 0)
+ return _Res(0, __pos._M_node);
else
- return _M_insert_(__after._M_node, __after._M_node, __v);
+ return _Res(__after._M_node, __after._M_node);
}
else
- return _M_insert_unique(__v).first;
+ return _M_get_insert_unique_pos(__k);
}
else
// Equivalent keys.
- return iterator(static_cast<_Link_type>
- (const_cast<_Base_ptr>(__position._M_node)));
+ return _Res(__pos._M_node, 0);
}
template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+#if __cplusplus >= 201103L
+ template<typename _Arg, typename _NodeGen>
+#else
+ template<typename _NodeGen>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_insert_unique_(const_iterator __position,
+#if __cplusplus >= 201103L
+ _Arg&& __v,
+#else
+ const _Val& __v,
+#endif
+ _NodeGen& __node_gen)
+ {
+ 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),
+ __node_gen);
+ 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_insert_equal_(const_iterator __position, const _Val& __v)
+ _M_get_insert_hint_equal_pos(const_iterator __position, const key_type& __k)
{
+ iterator __pos = __position._M_const_cast();
+ typedef pair<_Base_ptr, _Base_ptr> _Res;
+
// end()
- if (__position._M_node == _M_end())
+ if (__pos._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);
+ && !_M_impl._M_key_compare(__k, _S_key(_M_rightmost())))
+ return _Res(0, _M_rightmost());
else
- return _M_insert_equal(__v);
+ return _M_get_insert_equal_pos(__k);
}
- else if (!_M_impl._M_key_compare(_S_key(__position._M_node),
- _KeyOfValue()(__v)))
+ else if (!_M_impl._M_key_compare(_S_key(__pos._M_node), __k))
{
// 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)))
+ 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 _M_insert_(0, __before._M_node, __v);
+ return _Res(0, __before._M_node);
else
- return _M_insert_(__position._M_node,
- __position._M_node, __v);
+ return _Res(__pos._M_node, __pos._M_node);
}
else
- return _M_insert_equal(__v);
+ return _M_get_insert_equal_pos(__k);
}
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)))
+ 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(__position._M_node) == 0)
- return _M_insert_(0, __position._M_node, __v);
+ if (_S_right(__pos._M_node) == 0)
+ return _Res(0, __pos._M_node);
else
- return _M_insert_(__after._M_node, __after._M_node, __v);
+ return _Res(__after._M_node, __after._M_node);
}
else
- return _M_insert_equal_lower(__v);
+ return _Res(0, 0);
+ }
+ }
+
+ template<typename _Key, typename _Val, typename _KeyOfValue,
+ typename _Compare, typename _Alloc>
+#if __cplusplus >= 201103L
+ template<typename _Arg, typename _NodeGen>
+#else
+ template<typename _NodeGen>
+#endif
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::iterator
+ _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
+ _M_insert_equal_(const_iterator __position,
+#if __cplusplus >= 201103L
+ _Arg&& __v,
+#else
+ const _Val& __v,
+#endif
+ _NodeGen& __node_gen)
+ {
+ 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),
+ __node_gen);
+
+ 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)
+ {
+ _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);
+
+ _M_drop_node(__z);
+ return _Res(iterator(static_cast<_Link_type>(__res.first)), false);
+ }
+ __catch(...)
+ {
+ _M_drop_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_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_drop_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_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_drop_node(__z);
+ return iterator(static_cast<_Link_type>(__res.first));
+ }
+ __catch(...)
+ {
+ _M_drop_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_drop_node(__z);
+ __throw_exception_again;
+ }
+ }
+#endif
+
template<typename _Key, typename _Val, typename _KoV,
typename _Cmp, typename _Alloc>
template<class _II>
_Rb_tree<_Key, _Val, _KoV, _Cmp, _Alloc>::
_M_insert_unique(_II __first, _II __last)
{
+ _Alloc_node __an(*this);
for (; __first != __last; ++__first)
- _M_insert_unique_(end(), *__first);
+ _M_insert_unique_(end(), *__first, __an);
}
template<typename _Key, typename _Val, typename _KoV,
_Rb_tree<_Key, _Val, _KoV, _Cmp, _Alloc>::
_M_insert_equal(_II __first, _II __last)
{
+ _Alloc_node __an(*this);
for (; __first != __last; ++__first)
- _M_insert_equal_(end(), *__first);
+ _M_insert_equal_(end(), *__first, __an);
}
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
+ void
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- erase(const_iterator __position)
+ _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_drop_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 _KeyOfValue,
typename _Compare, typename _Alloc>
void
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- erase(iterator __first, iterator __last)
+ _M_erase_aux(const_iterator __first, const_iterator __last)
{
if (__first == begin() && __last == end())
clear();
template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
- void
+ typename _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::size_type
_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::
- erase(const_iterator __first, const_iterator __last)
+ erase(const _Key& __x)
{
- if (__first == begin() && __last == end())
- clear();
- else
- while (__first != __last)
- erase(__first++);
+ 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,
return __n;
}
- unsigned int
+ _GLIBCXX_PURE unsigned int
_Rb_tree_black_count(const _Rb_tree_node_base* __node,
- const _Rb_tree_node_base* __root);
+ const _Rb_tree_node_base* __root) throw ();
template<typename _Key, typename _Val, typename _KeyOfValue,
typename _Compare, typename _Alloc>
return true;
}
-_GLIBCXX_END_NAMESPACE
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
#endif
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