34#pragma GCC system_header
36#if __cplusplus >= 201703L
37# define __cpp_lib_node_extract 201606L
43namespace std _GLIBCXX_VISIBILITY(default)
45_GLIBCXX_BEGIN_NAMESPACE_VERSION
63 template<
typename _Val,
typename _NodeAlloc>
72 get_allocator()
const noexcept
74 __glibcxx_assert(!this->empty());
78 explicit operator bool()
const noexcept {
return _M_ptr !=
nullptr; }
80 [[
nodiscard]]
bool empty()
const noexcept {
return _M_ptr ==
nullptr; }
107 else if (
__nh.empty())
112 _AllocTraits::destroy(*_M_alloc, _M_ptr->_M_valptr());
113 _AllocTraits::deallocate(*_M_alloc, _M_ptr, 1);
115 _M_alloc =
__nh._M_alloc.release();
116 _M_ptr =
__nh._M_ptr;
117 __nh._M_ptr =
nullptr;
126 __glibcxx_assert(
__ptr !=
nullptr);
137 else if (
__nh.empty())
142 swap(_M_ptr,
__nh._M_ptr);
143 _M_alloc.swap(
__nh._M_alloc);
155 _M_ptr =
__nh._M_ptr;
156 __nh._M_ptr =
nullptr;
166 _AllocTraits::destroy(
__alloc, _M_ptr->_M_valptr());
167 _AllocTraits::deallocate(
__alloc, _M_ptr, 1);
172 typename _AllocTraits::pointer _M_ptr;
194 if constexpr (_ATr::propagate_on_container_move_assignment::value)
196 else if constexpr (!_AllocTraits::is_always_equal::value)
197 __glibcxx_assert(_M_alloc ==
__alloc);
205 if constexpr (_AllocTraits::propagate_on_container_swap::value)
206 swap(_M_alloc, __other._M_alloc);
207 else if constexpr (!_AllocTraits::is_always_equal::value)
208 __glibcxx_assert(_M_alloc == __other._M_alloc);
218 _M_alloc.~_NodeAlloc();
232 friend class _Rb_tree;
238 template<
typename _Key,
typename _Value,
typename _NodeAlloc>
250 using mapped_type =
typename _Value::second_type;
255 __glibcxx_assert(!this->empty());
260 mapped()
const noexcept
262 __glibcxx_assert(!this->empty());
271 swap(_M_pkey,
__nh._M_pkey);
272 swap(_M_pmapped,
__nh._M_pmapped);
277 noexcept(
noexcept(__x.swap(
__y)))
290 _M_pkey = _S_pointer_to(
__key);
291 _M_pmapped = _S_pointer_to(
__ptr->_M_valptr()->second);
296 _M_pmapped =
nullptr;
300 template<
typename _Tp>
308 template<
typename _Tp>
310 _S_pointer_to(_Tp&
__obj)
314 _M_key()
const noexcept {
return key(); }
318 friend class _Rb_tree;
321 typename _ExtractKey,
typename _Equal,
324 friend class _Hashtable;
328 template<
typename _Value,
typename _NodeAlloc>
340 using value_type = _Value;
343 value()
const noexcept
345 __glibcxx_assert(!this->empty());
346 return *this->_M_ptr->_M_valptr();
351 { this->_M_swap(
__nh); }
355 noexcept(
noexcept(__x.swap(
__y)))
366 _M_key()
const noexcept {
return value(); }
369 typename _Compare,
typename _Alloc>
370 friend class _Rb_tree;
373 typename _ExtractKey,
typename _Equal,
376 friend class _Hashtable;
380 template<
typename _Iterator,
typename _NodeHandle>
383 _Iterator position = _Iterator();
384 bool inserted =
false;
390_GLIBCXX_END_NAMESPACE_VERSION
constexpr complex< _Tp > operator*(const complex< _Tp > &__x, const complex< _Tp > &__y)
Return new complex value x times y.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
ISO C++ entities toplevel namespace is std.
typename pointer_traits< _Ptr >::template rebind< _Tp > __ptr_rebind
Convenience alias for rebinding pointers.
Base class for node handle types of maps and sets.
Node handle type for maps.
Return type of insert(node_handle&&) on unique maps/sets.