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Name	Size	Permission	Date
algorithmfwd.h	21.23 KB	-rw-r--r--	2025-03-31 10:36
alloc_traits.h	19.6 KB	-rw-r--r--	2025-03-31 10:36
allocated_ptr.h	3.22 KB	-rw-r--r--	2025-03-31 10:36
allocator.h	7.39 KB	-rw-r--r--	2025-03-31 10:36
atomic_base.h	23.28 KB	-rw-r--r--	2025-03-31 10:36
atomic_futex.h	9.35 KB	-rw-r--r--	2025-03-31 10:36
atomic_lockfree_defines.h	2.2 KB	-rw-r--r--	2025-03-31 10:36
basic_ios.h	15.7 KB	-rw-r--r--	2025-03-31 10:36
basic_ios.tcc	5.94 KB	-rw-r--r--	2025-03-31 10:36
basic_string.h	237.01 KB	-rw-r--r--	2025-03-31 10:36
basic_string.tcc	52.5 KB	-rw-r--r--	2025-03-31 10:36
boost_concept_check.h	26.52 KB	-rw-r--r--	2025-03-31 10:36
c++0x_warning.h	1.44 KB	-rw-r--r--	2025-03-31 10:36
char_traits.h	20.42 KB	-rw-r--r--	2025-03-31 10:36
codecvt.h	20.79 KB	-rw-r--r--	2025-03-31 10:36
concept_check.h	3.34 KB	-rw-r--r--	2025-03-31 10:36
cpp_type_traits.h	9.56 KB	-rw-r--r--	2025-03-31 10:36
cxxabi_forced.h	1.77 KB	-rw-r--r--	2025-03-31 10:36
cxxabi_init_exception.h	2.17 KB	-rw-r--r--	2025-03-31 10:36
deque.tcc	33.32 KB	-rw-r--r--	2025-03-31 10:36
enable_special_members.h	12.1 KB	-rw-r--r--	2025-03-31 10:36
exception.h	2.23 KB	-rw-r--r--	2025-03-31 10:36
exception_defines.h	1.61 KB	-rw-r--r--	2025-03-31 10:36
exception_ptr.h	5.84 KB	-rw-r--r--	2025-03-31 10:36
forward_list.h	47.77 KB	-rw-r--r--	2025-03-31 10:36
forward_list.tcc	12.86 KB	-rw-r--r--	2025-03-31 10:36
fs_dir.h	14.38 KB	-rw-r--r--	2025-03-31 10:36
fs_fwd.h	10.04 KB	-rw-r--r--	2025-03-31 10:36
fs_ops.h	9.5 KB	-rw-r--r--	2025-03-31 10:36
fs_path.h	32.12 KB	-rw-r--r--	2025-03-31 10:36
fstream.tcc	32.03 KB	-rw-r--r--	2025-03-31 10:36
functexcept.h	3.18 KB	-rw-r--r--	2025-03-31 10:36
functional_hash.h	8.04 KB	-rw-r--r--	2025-03-31 10:36
gslice.h	5.39 KB	-rw-r--r--	2025-03-31 10:36
gslice_array.h	7.59 KB	-rw-r--r--	2025-03-31 10:36
hash_bytes.h	2.1 KB	-rw-r--r--	2025-03-31 10:36
hashtable.h	72.06 KB	-rw-r--r--	2025-03-31 10:36
hashtable_policy.h	66.38 KB	-rw-r--r--	2025-03-31 10:36
indirect_array.h	7.68 KB	-rw-r--r--	2025-03-31 10:36
invoke.h	3.57 KB	-rw-r--r--	2025-03-31 10:36
ios_base.h	30.3 KB	-rw-r--r--	2025-03-31 10:36
istream.tcc	30.36 KB	-rw-r--r--	2025-03-31 10:36
list.tcc	15.6 KB	-rw-r--r--	2025-03-31 10:36
locale_classes.h	24.31 KB	-rw-r--r--	2025-03-31 10:36
locale_classes.tcc	8.18 KB	-rw-r--r--	2025-03-31 10:36
locale_conv.h	15.72 KB	-rw-r--r--	2025-03-31 10:36
locale_facets.h	90.16 KB	-rw-r--r--	2025-03-31 10:36
locale_facets.tcc	38.62 KB	-rw-r--r--	2025-03-31 10:36
locale_facets_nonio.h	67.36 KB	-rw-r--r--	2025-03-31 10:36
locale_facets_nonio.tcc	44.22 KB	-rw-r--r--	2025-03-31 10:36
localefwd.h	5.51 KB	-rw-r--r--	2025-03-31 10:36
mask_array.h	7.42 KB	-rw-r--r--	2025-03-31 10:36
memoryfwd.h	2.4 KB	-rw-r--r--	2025-03-31 10:36
move.h	6.38 KB	-rw-r--r--	2025-03-31 10:36
nested_exception.h	4.69 KB	-rw-r--r--	2025-03-31 10:36
node_handle.h	8.02 KB	-rw-r--r--	2025-03-31 10:36
ostream.tcc	12.03 KB	-rw-r--r--	2025-03-31 10:36
ostream_insert.h	3.91 KB	-rw-r--r--	2025-03-31 10:36
parse_numbers.h	7.76 KB	-rw-r--r--	2025-03-31 10:36
postypes.h	8.02 KB	-rw-r--r--	2025-03-31 10:36
predefined_ops.h	8.87 KB	-rw-r--r--	2025-03-31 10:36
ptr_traits.h	6.47 KB	-rw-r--r--	2025-03-31 10:36
quoted_string.h	4.93 KB	-rw-r--r--	2025-03-31 10:36
random.h	171.14 KB	-rw-r--r--	2025-03-31 10:36
random.tcc	103.12 KB	-rw-r--r--	2025-03-31 10:36
range_access.h	9.79 KB	-rw-r--r--	2025-03-31 10:36
refwrap.h	11.61 KB	-rw-r--r--	2025-03-31 10:36
regex.h	95.12 KB	-rw-r--r--	2025-03-31 10:36
regex.tcc	16.18 KB	-rw-r--r--	2025-03-31 10:36
regex_automaton.h	10.47 KB	-rw-r--r--	2025-03-31 10:36
regex_automaton.tcc	7.65 KB	-rw-r--r--	2025-03-31 10:36
regex_compiler.h	17.63 KB	-rw-r--r--	2025-03-31 10:36
regex_compiler.tcc	18.84 KB	-rw-r--r--	2025-03-31 10:36
regex_constants.h	14.36 KB	-rw-r--r--	2025-03-31 10:36
regex_error.h	4.79 KB	-rw-r--r--	2025-03-31 10:36
regex_executor.h	7.31 KB	-rw-r--r--	2025-03-31 10:36
regex_executor.tcc	18.4 KB	-rw-r--r--	2025-03-31 10:36
regex_scanner.h	6.92 KB	-rw-r--r--	2025-03-31 10:36
regex_scanner.tcc	14.66 KB	-rw-r--r--	2025-03-31 10:36
shared_ptr.h	22.88 KB	-rw-r--r--	2025-03-31 10:36
shared_ptr_atomic.h	9.54 KB	-rw-r--r--	2025-03-31 10:36
shared_ptr_base.h	53.01 KB	-rw-r--r--	2025-03-31 10:36
slice_array.h	9.13 KB	-rw-r--r--	2025-03-31 10:36
specfun.h	45.95 KB	-rw-r--r--	2025-03-31 10:36
sstream.tcc	9.9 KB	-rw-r--r--	2025-03-31 10:36
std_abs.h	3.19 KB	-rw-r--r--	2025-03-31 10:36
std_function.h	22.71 KB	-rw-r--r--	2025-03-31 10:36
std_mutex.h	9.08 KB	-rw-r--r--	2025-03-31 10:36
stl_algo.h	209.27 KB	-rw-r--r--	2025-03-31 10:36
stl_algobase.h	49.31 KB	-rw-r--r--	2025-03-31 10:36
stl_bvector.h	32.94 KB	-rw-r--r--	2025-03-31 10:36
stl_construct.h	7.22 KB	-rw-r--r--	2025-03-31 10:36
stl_deque.h	76.73 KB	-rw-r--r--	2025-03-31 10:36
stl_function.h	40.77 KB	-rw-r--r--	2025-03-31 10:36
stl_heap.h	19.73 KB	-rw-r--r--	2025-03-31 10:36
stl_iterator.h	41.3 KB	-rw-r--r--	2025-03-31 10:36
stl_iterator_base_funcs.h	7.99 KB	-rw-r--r--	2025-03-31 10:36
stl_iterator_base_types.h	8.48 KB	-rw-r--r--	2025-03-31 10:36
stl_list.h	65.97 KB	-rw-r--r--	2025-03-31 10:36
stl_map.h	51.55 KB	-rw-r--r--	2025-03-31 10:36
stl_multimap.h	40.58 KB	-rw-r--r--	2025-03-31 10:36
stl_multiset.h	34.97 KB	-rw-r--r--	2025-03-31 10:36
stl_numeric.h	13.51 KB	-rw-r--r--	2025-03-31 10:36
stl_pair.h	18.21 KB	-rw-r--r--	2025-03-31 10:36
stl_queue.h	23.51 KB	-rw-r--r--	2025-03-31 10:36
stl_raw_storage_iter.h	3.74 KB	-rw-r--r--	2025-03-31 10:36
stl_relops.h	4.49 KB	-rw-r--r--	2025-03-31 10:36
stl_set.h	35.28 KB	-rw-r--r--	2025-03-31 10:36
stl_stack.h	11.66 KB	-rw-r--r--	2025-03-31 10:36
stl_tempbuf.h	8.15 KB	-rw-r--r--	2025-03-31 10:36
stl_tree.h	73.15 KB	-rw-r--r--	2025-03-31 10:36
stl_uninitialized.h	27.06 KB	-rw-r--r--	2025-03-31 10:36
stl_vector.h	59.12 KB	-rw-r--r--	2025-03-31 10:36
stream_iterator.h	6.5 KB	-rw-r--r--	2025-03-31 10:36
streambuf.tcc	4.81 KB	-rw-r--r--	2025-03-31 10:36
streambuf_iterator.h	13.44 KB	-rw-r--r--	2025-03-31 10:36
string_view.tcc	6.54 KB	-rw-r--r--	2025-03-31 10:36
stringfwd.h	2.55 KB	-rw-r--r--	2025-03-31 10:36
uniform_int_dist.h	9.84 KB	-rw-r--r--	2025-03-31 10:36
unique_ptr.h	25.38 KB	-rw-r--r--	2025-03-31 10:36
unordered_map.h	73.58 KB	-rw-r--r--	2025-03-31 10:36
unordered_set.h	57.76 KB	-rw-r--r--	2025-03-31 10:36
uses_allocator.h	6.37 KB	-rw-r--r--	2025-03-31 10:36
valarray_after.h	22.12 KB	-rw-r--r--	2025-03-31 10:36
valarray_array.h	21.3 KB	-rw-r--r--	2025-03-31 10:36
valarray_array.tcc	7.08 KB	-rw-r--r--	2025-03-31 10:36
valarray_before.h	18.08 KB	-rw-r--r--	2025-03-31 10:36
vector.tcc	28.95 KB	-rw-r--r--	2025-03-31 10:36

Rename

// Node handles for containers -*- C++ -*-

// Copyright (C) 2016-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/node_handle.h
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly.
 *  @headername{map,set,unordered_map,unordered_set}
 */

#ifndef _NODE_HANDLE
#define _NODE_HANDLE 1

#pragma GCC system_header

#if __cplusplus > 201402L
# define __cpp_lib_node_extract 201606

#include <optional>
#include <bits/alloc_traits.h>
#include <bits/ptr_traits.h>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

/// Base class for node handle types of maps and sets.
  template<typename _Val, typename _NodeAlloc>
    class _Node_handle_common
    {
      using _AllocTraits = allocator_traits<_NodeAlloc>;

public:
      using allocator_type = __alloc_rebind<_NodeAlloc, _Val>;

allocator_type
      get_allocator() const noexcept
      {
	__glibcxx_assert(!this->empty());
	return allocator_type(*_M_alloc);
      }

explicit operator bool() const noexcept { return _M_ptr != nullptr; }

[[nodiscard]] bool empty() const noexcept { return _M_ptr == nullptr; }

protected:
      constexpr _Node_handle_common() noexcept : _M_ptr(), _M_alloc() {}

~_Node_handle_common() { _M_destroy(); }

_Node_handle_common(_Node_handle_common&& __nh) noexcept
      : _M_ptr(__nh._M_ptr), _M_alloc(std::move(__nh._M_alloc))
      {
	__nh._M_ptr = nullptr;
	__nh._M_alloc = nullopt;
      }

_Node_handle_common&
      operator=(_Node_handle_common&& __nh) noexcept
      {
	_M_destroy();
	_M_ptr = __nh._M_ptr;
	if constexpr (is_move_assignable_v<_NodeAlloc>)
	  {
	    if (_AllocTraits::propagate_on_container_move_assignment::value
		|| !this->_M_alloc)
	      this->_M_alloc = std::move(__nh._M_alloc);
	    else
	      {
		__glibcxx_assert(this->_M_alloc == __nh._M_alloc);
	      }
	  }
	else
	  {
	    __glibcxx_assert(_M_alloc);
	  }
	__nh._M_ptr = nullptr;
	__nh._M_alloc = nullopt;
	return *this;
      }

_Node_handle_common(typename _AllocTraits::pointer __ptr,
			  const _NodeAlloc& __alloc)
      : _M_ptr(__ptr), _M_alloc(__alloc) { }

void
      _M_swap(_Node_handle_common& __nh) noexcept
      {
	using std::swap;
	swap(_M_ptr, __nh._M_ptr);
	if (_AllocTraits::propagate_on_container_swap::value
	    || !_M_alloc || !__nh._M_alloc)
	  _M_alloc.swap(__nh._M_alloc);
	else
	  {
	    __glibcxx_assert(_M_alloc == __nh._M_alloc);
	  }
      }

private:
      void
      _M_destroy() noexcept
      {
	if (_M_ptr != nullptr)
	  {
	    allocator_type __alloc(*_M_alloc);
	    allocator_traits<allocator_type>::destroy(__alloc,
						      _M_ptr->_M_valptr());
	    _AllocTraits::deallocate(*_M_alloc, _M_ptr, 1);
	  }
      }

protected:
      typename _AllocTraits::pointer	_M_ptr;
    private:
      optional<_NodeAlloc>		_M_alloc;

template<typename _Key2, typename _Value2, typename _KeyOfValue,
	       typename _Compare, typename _ValueAlloc>
	friend class _Rb_tree;
    };

/// Node handle type for maps.
  template<typename _Key, typename _Value, typename _NodeAlloc>
    class _Node_handle : public _Node_handle_common<_Value, _NodeAlloc>
    {
    public:
      constexpr _Node_handle() noexcept = default;
      ~_Node_handle() = default;
      _Node_handle(_Node_handle&&) noexcept = default;

_Node_handle&
      operator=(_Node_handle&&) noexcept = default;

using key_type = _Key;
      using mapped_type = typename _Value::second_type;

key_type&
      key() const noexcept
      {
	__glibcxx_assert(!this->empty());
	return *_M_pkey;
      }

mapped_type&
      mapped() const noexcept
      {
	__glibcxx_assert(!this->empty());
	return *_M_pmapped;
      }

void
      swap(_Node_handle& __nh) noexcept
      {
	this->_M_swap(__nh);
	using std::swap;
	swap(_M_pkey, __nh._M_pkey);
	swap(_M_pmapped, __nh._M_pmapped);
      }

friend void
      swap(_Node_handle& __x, _Node_handle& __y)
      noexcept(noexcept(__x.swap(__y)))
      { __x.swap(__y); }

private:
      using _AllocTraits = allocator_traits<_NodeAlloc>;

_Node_handle(typename _AllocTraits::pointer __ptr,
		   const _NodeAlloc& __alloc)
      : _Node_handle_common<_Value, _NodeAlloc>(__ptr, __alloc)
      {
	if (__ptr)
	  {
	    auto& __key = const_cast<_Key&>(__ptr->_M_valptr()->first);
	    _M_pkey = _S_pointer_to(__key);
	    _M_pmapped = _S_pointer_to(__ptr->_M_valptr()->second);
	  }
	else
	  {
	    _M_pkey = nullptr;
	    _M_pmapped = nullptr;
	  }
      }

template<typename _Tp>
	using __pointer
	  = __ptr_rebind<typename _AllocTraits::pointer,
			 remove_reference_t<_Tp>>;

__pointer<_Key>				_M_pkey = nullptr;
      __pointer<typename _Value::second_type>	_M_pmapped = nullptr;

template<typename _Tp>
	__pointer<_Tp>
	_S_pointer_to(_Tp& __obj)
	{ return pointer_traits<__pointer<_Tp>>::pointer_to(__obj); }

const key_type&
      _M_key() const noexcept { return key(); }

template<typename _Key2, typename _Value2, typename _KeyOfValue,
	       typename _Compare, typename _ValueAlloc>
	friend class _Rb_tree;

template<typename _Key2, typename _Value2, typename _ValueAlloc,
	       typename _ExtractKey, typename _Equal,
	       typename _H1, typename _H2, typename _Hash,
	       typename _RehashPolicy, typename _Traits>
	friend class _Hashtable;
    };

/// Node handle type for sets.
  template<typename _Value, typename _NodeAlloc>
    class _Node_handle<_Value, _Value, _NodeAlloc>
    : public _Node_handle_common<_Value, _NodeAlloc>
    {
    public:
      constexpr _Node_handle() noexcept = default;
      ~_Node_handle() = default;
      _Node_handle(_Node_handle&&) noexcept = default;

_Node_handle&
      operator=(_Node_handle&&) noexcept = default;

using value_type = _Value;

value_type&
      value() const noexcept
      {
	__glibcxx_assert(!this->empty());
	return *this->_M_ptr->_M_valptr();
      }

void
      swap(_Node_handle& __nh) noexcept
      { this->_M_swap(__nh); }

friend void
      swap(_Node_handle& __x, _Node_handle& __y)
      noexcept(noexcept(__x.swap(__y)))
      { __x.swap(__y); }

private:
      using _AllocTraits = allocator_traits<_NodeAlloc>;

_Node_handle(typename _AllocTraits::pointer __ptr,
		   const _NodeAlloc& __alloc)
      : _Node_handle_common<_Value, _NodeAlloc>(__ptr, __alloc) { }

const value_type&
      _M_key() const noexcept { return value(); }

template<typename _Key, typename _Val, typename _KeyOfValue,
	       typename _Compare, typename _Alloc>
	friend class _Rb_tree;

/// Return type of insert(node_handle&&) on unique maps/sets.
  template<typename _Iterator, typename _NodeHandle>
    struct _Node_insert_return
    {
      _Iterator		position = _Iterator();
      bool		inserted = false;
      _NodeHandle	node;
    };

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif // C++17
#endif