| // -*- C++ -*- | 
 | //===------------------------------ vector --------------------------------===// | 
 | // | 
 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
 | // See https://llvm.org/LICENSE.txt for license information. | 
 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
 | // | 
 | //===----------------------------------------------------------------------===// | 
 |  | 
 | #ifndef _LIBCPP_VECTOR | 
 | #define _LIBCPP_VECTOR | 
 |  | 
 | /* | 
 |     vector synopsis | 
 |  | 
 | namespace std | 
 | { | 
 |  | 
 | template <class T, class Allocator = allocator<T> > | 
 | class vector | 
 | { | 
 | public: | 
 |     typedef T                                        value_type; | 
 |     typedef Allocator                                allocator_type; | 
 |     typedef typename allocator_type::reference       reference; | 
 |     typedef typename allocator_type::const_reference const_reference; | 
 |     typedef implementation-defined                   iterator; | 
 |     typedef implementation-defined                   const_iterator; | 
 |     typedef typename allocator_type::size_type       size_type; | 
 |     typedef typename allocator_type::difference_type difference_type; | 
 |     typedef typename allocator_type::pointer         pointer; | 
 |     typedef typename allocator_type::const_pointer   const_pointer; | 
 |     typedef std::reverse_iterator<iterator>          reverse_iterator; | 
 |     typedef std::reverse_iterator<const_iterator>    const_reverse_iterator; | 
 |  | 
 |     vector() | 
 |         noexcept(is_nothrow_default_constructible<allocator_type>::value); | 
 |     explicit vector(const allocator_type&); | 
 |     explicit vector(size_type n); | 
 |     explicit vector(size_type n, const allocator_type&); // C++14 | 
 |     vector(size_type n, const value_type& value, const allocator_type& = allocator_type()); | 
 |     template <class InputIterator> | 
 |         vector(InputIterator first, InputIterator last, const allocator_type& = allocator_type()); | 
 |     vector(const vector& x); | 
 |     vector(vector&& x) | 
 |         noexcept(is_nothrow_move_constructible<allocator_type>::value); | 
 |     vector(initializer_list<value_type> il); | 
 |     vector(initializer_list<value_type> il, const allocator_type& a); | 
 |     ~vector(); | 
 |     vector& operator=(const vector& x); | 
 |     vector& operator=(vector&& x) | 
 |         noexcept( | 
 |              allocator_type::propagate_on_container_move_assignment::value || | 
 |              allocator_type::is_always_equal::value); // C++17 | 
 |     vector& operator=(initializer_list<value_type> il); | 
 |     template <class InputIterator> | 
 |         void assign(InputIterator first, InputIterator last); | 
 |     void assign(size_type n, const value_type& u); | 
 |     void assign(initializer_list<value_type> il); | 
 |  | 
 |     allocator_type get_allocator() const noexcept; | 
 |  | 
 |     iterator               begin() noexcept; | 
 |     const_iterator         begin()   const noexcept; | 
 |     iterator               end() noexcept; | 
 |     const_iterator         end()     const noexcept; | 
 |  | 
 |     reverse_iterator       rbegin() noexcept; | 
 |     const_reverse_iterator rbegin()  const noexcept; | 
 |     reverse_iterator       rend() noexcept; | 
 |     const_reverse_iterator rend()    const noexcept; | 
 |  | 
 |     const_iterator         cbegin()  const noexcept; | 
 |     const_iterator         cend()    const noexcept; | 
 |     const_reverse_iterator crbegin() const noexcept; | 
 |     const_reverse_iterator crend()   const noexcept; | 
 |  | 
 |     size_type size() const noexcept; | 
 |     size_type max_size() const noexcept; | 
 |     size_type capacity() const noexcept; | 
 |     bool empty() const noexcept; | 
 |     void reserve(size_type n); | 
 |     void shrink_to_fit() noexcept; | 
 |  | 
 |     reference       operator[](size_type n); | 
 |     const_reference operator[](size_type n) const; | 
 |     reference       at(size_type n); | 
 |     const_reference at(size_type n) const; | 
 |  | 
 |     reference       front(); | 
 |     const_reference front() const; | 
 |     reference       back(); | 
 |     const_reference back() const; | 
 |  | 
 |     value_type*       data() noexcept; | 
 |     const value_type* data() const noexcept; | 
 |  | 
 |     void push_back(const value_type& x); | 
 |     void push_back(value_type&& x); | 
 |     template <class... Args> | 
 |         reference emplace_back(Args&&... args); // reference in C++17 | 
 |     void pop_back(); | 
 |  | 
 |     template <class... Args> iterator emplace(const_iterator position, Args&&... args); | 
 |     iterator insert(const_iterator position, const value_type& x); | 
 |     iterator insert(const_iterator position, value_type&& x); | 
 |     iterator insert(const_iterator position, size_type n, const value_type& x); | 
 |     template <class InputIterator> | 
 |         iterator insert(const_iterator position, InputIterator first, InputIterator last); | 
 |     iterator insert(const_iterator position, initializer_list<value_type> il); | 
 |  | 
 |     iterator erase(const_iterator position); | 
 |     iterator erase(const_iterator first, const_iterator last); | 
 |  | 
 |     void clear() noexcept; | 
 |  | 
 |     void resize(size_type sz); | 
 |     void resize(size_type sz, const value_type& c); | 
 |  | 
 |     void swap(vector&) | 
 |         noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || | 
 |                  allocator_traits<allocator_type>::is_always_equal::value);  // C++17 | 
 |  | 
 |     bool __invariants() const; | 
 | }; | 
 |  | 
 | template <class Allocator = allocator<T> > | 
 | class vector<bool, Allocator> | 
 | { | 
 | public: | 
 |     typedef bool                                     value_type; | 
 |     typedef Allocator                                allocator_type; | 
 |     typedef implementation-defined                   iterator; | 
 |     typedef implementation-defined                   const_iterator; | 
 |     typedef typename allocator_type::size_type       size_type; | 
 |     typedef typename allocator_type::difference_type difference_type; | 
 |     typedef iterator                                 pointer; | 
 |     typedef const_iterator                           const_pointer; | 
 |     typedef std::reverse_iterator<iterator>          reverse_iterator; | 
 |     typedef std::reverse_iterator<const_iterator>    const_reverse_iterator; | 
 |  | 
 |     class reference | 
 |     { | 
 |     public: | 
 |         reference(const reference&) noexcept; | 
 |         operator bool() const noexcept; | 
 |         reference& operator=(bool x) noexcept; | 
 |         reference& operator=(const reference& x) noexcept; | 
 |         iterator operator&() const noexcept; | 
 |         void flip() noexcept; | 
 |     }; | 
 |  | 
 |     class const_reference | 
 |     { | 
 |     public: | 
 |         const_reference(const reference&) noexcept; | 
 |         operator bool() const noexcept; | 
 |         const_iterator operator&() const noexcept; | 
 |     }; | 
 |  | 
 |     vector() | 
 |         noexcept(is_nothrow_default_constructible<allocator_type>::value); | 
 |     explicit vector(const allocator_type&); | 
 |     explicit vector(size_type n, const allocator_type& a = allocator_type()); // C++14 | 
 |     vector(size_type n, const value_type& value, const allocator_type& = allocator_type()); | 
 |     template <class InputIterator> | 
 |         vector(InputIterator first, InputIterator last, const allocator_type& = allocator_type()); | 
 |     vector(const vector& x); | 
 |     vector(vector&& x) | 
 |         noexcept(is_nothrow_move_constructible<allocator_type>::value); | 
 |     vector(initializer_list<value_type> il); | 
 |     vector(initializer_list<value_type> il, const allocator_type& a); | 
 |     ~vector(); | 
 |     vector& operator=(const vector& x); | 
 |     vector& operator=(vector&& x) | 
 |         noexcept( | 
 |              allocator_type::propagate_on_container_move_assignment::value || | 
 |              allocator_type::is_always_equal::value); // C++17 | 
 |     vector& operator=(initializer_list<value_type> il); | 
 |     template <class InputIterator> | 
 |         void assign(InputIterator first, InputIterator last); | 
 |     void assign(size_type n, const value_type& u); | 
 |     void assign(initializer_list<value_type> il); | 
 |  | 
 |     allocator_type get_allocator() const noexcept; | 
 |  | 
 |     iterator               begin() noexcept; | 
 |     const_iterator         begin()   const noexcept; | 
 |     iterator               end() noexcept; | 
 |     const_iterator         end()     const noexcept; | 
 |  | 
 |     reverse_iterator       rbegin() noexcept; | 
 |     const_reverse_iterator rbegin()  const noexcept; | 
 |     reverse_iterator       rend() noexcept; | 
 |     const_reverse_iterator rend()    const noexcept; | 
 |  | 
 |     const_iterator         cbegin()  const noexcept; | 
 |     const_iterator         cend()    const noexcept; | 
 |     const_reverse_iterator crbegin() const noexcept; | 
 |     const_reverse_iterator crend()   const noexcept; | 
 |  | 
 |     size_type size() const noexcept; | 
 |     size_type max_size() const noexcept; | 
 |     size_type capacity() const noexcept; | 
 |     bool empty() const noexcept; | 
 |     void reserve(size_type n); | 
 |     void shrink_to_fit() noexcept; | 
 |  | 
 |     reference       operator[](size_type n); | 
 |     const_reference operator[](size_type n) const; | 
 |     reference       at(size_type n); | 
 |     const_reference at(size_type n) const; | 
 |  | 
 |     reference       front(); | 
 |     const_reference front() const; | 
 |     reference       back(); | 
 |     const_reference back() const; | 
 |  | 
 |     void push_back(const value_type& x); | 
 |     template <class... Args> reference emplace_back(Args&&... args);  // C++14; reference in C++17 | 
 |     void pop_back(); | 
 |  | 
 |     template <class... Args> iterator emplace(const_iterator position, Args&&... args);  // C++14 | 
 |     iterator insert(const_iterator position, const value_type& x); | 
 |     iterator insert(const_iterator position, size_type n, const value_type& x); | 
 |     template <class InputIterator> | 
 |         iterator insert(const_iterator position, InputIterator first, InputIterator last); | 
 |     iterator insert(const_iterator position, initializer_list<value_type> il); | 
 |  | 
 |     iterator erase(const_iterator position); | 
 |     iterator erase(const_iterator first, const_iterator last); | 
 |  | 
 |     void clear() noexcept; | 
 |  | 
 |     void resize(size_type sz); | 
 |     void resize(size_type sz, value_type x); | 
 |  | 
 |     void swap(vector&) | 
 |         noexcept(allocator_traits<allocator_type>::propagate_on_container_swap::value || | 
 |                  allocator_traits<allocator_type>::is_always_equal::value);  // C++17 | 
 |     void flip() noexcept; | 
 |  | 
 |     bool __invariants() const; | 
 | }; | 
 |  | 
 | template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>> | 
 |    vector(InputIterator, InputIterator, Allocator = Allocator()) | 
 |    -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>; | 
 |  | 
 | template <class Allocator> struct hash<std::vector<bool, Allocator>>; | 
 |  | 
 | template <class T, class Allocator> bool operator==(const vector<T,Allocator>& x, const vector<T,Allocator>& y); | 
 | template <class T, class Allocator> bool operator< (const vector<T,Allocator>& x, const vector<T,Allocator>& y); | 
 | template <class T, class Allocator> bool operator!=(const vector<T,Allocator>& x, const vector<T,Allocator>& y); | 
 | template <class T, class Allocator> bool operator> (const vector<T,Allocator>& x, const vector<T,Allocator>& y); | 
 | template <class T, class Allocator> bool operator>=(const vector<T,Allocator>& x, const vector<T,Allocator>& y); | 
 | template <class T, class Allocator> bool operator<=(const vector<T,Allocator>& x, const vector<T,Allocator>& y); | 
 |  | 
 | template <class T, class Allocator> | 
 | void swap(vector<T,Allocator>& x, vector<T,Allocator>& y) | 
 |     noexcept(noexcept(x.swap(y))); | 
 |  | 
 | template <class T, class Allocator, class U> | 
 | typename vector<T, Allocator>::size_type | 
 | erase(vector<T, Allocator>& c, const U& value);       // C++20 | 
 | template <class T, class Allocator, class Predicate> | 
 | typename vector<T, Allocator>::size_type | 
 | erase_if(vector<T, Allocator>& c, Predicate pred);    // C++20 | 
 |  | 
 | }  // std | 
 |  | 
 | */ | 
 |  | 
 | #include <__config> | 
 | #include <__bit_reference> | 
 | #include <__debug> | 
 | #include <__functional_base> | 
 | #include <__iterator/wrap_iter.h> | 
 | #include <__split_buffer> | 
 | #include <__utility/forward.h> | 
 | #include <algorithm> | 
 | #include <climits> | 
 | #include <compare> | 
 | #include <cstring> | 
 | #include <initializer_list> | 
 | #include <iosfwd> // for forward declaration of vector | 
 | #include <limits> | 
 | #include <memory> | 
 | #include <stdexcept> | 
 | #include <type_traits> | 
 | #include <version> | 
 |  | 
 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
 | #pragma GCC system_header | 
 | #endif | 
 |  | 
 | _LIBCPP_PUSH_MACROS | 
 | #include <__undef_macros> | 
 |  | 
 |  | 
 | _LIBCPP_BEGIN_NAMESPACE_STD | 
 |  | 
 | template <bool> | 
 | class _LIBCPP_TEMPLATE_VIS __vector_base_common | 
 | { | 
 | protected: | 
 |     _LIBCPP_INLINE_VISIBILITY __vector_base_common() {} | 
 |     _LIBCPP_NORETURN void __throw_length_error() const; | 
 |     _LIBCPP_NORETURN void __throw_out_of_range() const; | 
 | }; | 
 |  | 
 | template <bool __b> | 
 | void | 
 | __vector_base_common<__b>::__throw_length_error() const | 
 | { | 
 |     _VSTD::__throw_length_error("vector"); | 
 | } | 
 |  | 
 | template <bool __b> | 
 | void | 
 | __vector_base_common<__b>::__throw_out_of_range() const | 
 | { | 
 |     _VSTD::__throw_out_of_range("vector"); | 
 | } | 
 |  | 
 | _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS __vector_base_common<true>) | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | class __vector_base | 
 |     : protected __vector_base_common<true> | 
 | { | 
 | public: | 
 |     typedef _Allocator                               allocator_type; | 
 |     typedef allocator_traits<allocator_type>         __alloc_traits; | 
 |     typedef typename __alloc_traits::size_type       size_type; | 
 | protected: | 
 |     typedef _Tp                                      value_type; | 
 |     typedef value_type&                              reference; | 
 |     typedef const value_type&                        const_reference; | 
 |     typedef typename __alloc_traits::difference_type difference_type; | 
 |     typedef typename __alloc_traits::pointer         pointer; | 
 |     typedef typename __alloc_traits::const_pointer   const_pointer; | 
 |     typedef pointer                                  iterator; | 
 |     typedef const_pointer                            const_iterator; | 
 |  | 
 |     pointer                                         __begin_; | 
 |     pointer                                         __end_; | 
 |     __compressed_pair<pointer, allocator_type> __end_cap_; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     allocator_type& __alloc() _NOEXCEPT | 
 |         {return __end_cap_.second();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const allocator_type& __alloc() const _NOEXCEPT | 
 |         {return __end_cap_.second();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     pointer& __end_cap() _NOEXCEPT | 
 |         {return __end_cap_.first();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const pointer& __end_cap() const _NOEXCEPT | 
 |         {return __end_cap_.first();} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __vector_base() | 
 |         _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value); | 
 |     _LIBCPP_INLINE_VISIBILITY __vector_base(const allocator_type& __a); | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY __vector_base(allocator_type&& __a) _NOEXCEPT; | 
 | #endif | 
 |     ~__vector_base(); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void clear() _NOEXCEPT {__destruct_at_end(__begin_);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type capacity() const _NOEXCEPT | 
 |         {return static_cast<size_type>(__end_cap() - __begin_);} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __destruct_at_end(pointer __new_last) _NOEXCEPT; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __copy_assign_alloc(const __vector_base& __c) | 
 |         {__copy_assign_alloc(__c, integral_constant<bool, | 
 |                       __alloc_traits::propagate_on_container_copy_assignment::value>());} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __move_assign_alloc(__vector_base& __c) | 
 |         _NOEXCEPT_( | 
 |             !__alloc_traits::propagate_on_container_move_assignment::value || | 
 |             is_nothrow_move_assignable<allocator_type>::value) | 
 |         {__move_assign_alloc(__c, integral_constant<bool, | 
 |                       __alloc_traits::propagate_on_container_move_assignment::value>());} | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __copy_assign_alloc(const __vector_base& __c, true_type) | 
 |         { | 
 |             if (__alloc() != __c.__alloc()) | 
 |             { | 
 |                 clear(); | 
 |                 __alloc_traits::deallocate(__alloc(), __begin_, capacity()); | 
 |                 __begin_ = __end_ = __end_cap() = nullptr; | 
 |             } | 
 |             __alloc() = __c.__alloc(); | 
 |         } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __copy_assign_alloc(const __vector_base&, false_type) | 
 |         {} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __move_assign_alloc(__vector_base& __c, true_type) | 
 |         _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) | 
 |         { | 
 |             __alloc() = _VSTD::move(__c.__alloc()); | 
 |         } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __move_assign_alloc(__vector_base&, false_type) | 
 |         _NOEXCEPT | 
 |         {} | 
 | }; | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | __vector_base<_Tp, _Allocator>::__destruct_at_end(pointer __new_last) _NOEXCEPT | 
 | { | 
 |     pointer __soon_to_be_end = __end_; | 
 |     while (__new_last != __soon_to_be_end) | 
 |         __alloc_traits::destroy(__alloc(), _VSTD::__to_address(--__soon_to_be_end)); | 
 |     __end_ = __new_last; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | __vector_base<_Tp, _Allocator>::__vector_base() | 
 |         _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) | 
 |     : __begin_(nullptr), | 
 |       __end_(nullptr), | 
 |       __end_cap_(nullptr, __default_init_tag()) | 
 | { | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | __vector_base<_Tp, _Allocator>::__vector_base(const allocator_type& __a) | 
 |     : __begin_(nullptr), | 
 |       __end_(nullptr), | 
 |       __end_cap_(nullptr, __a) | 
 | { | 
 | } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | __vector_base<_Tp, _Allocator>::__vector_base(allocator_type&& __a) _NOEXCEPT | 
 |     : __begin_(nullptr), | 
 |       __end_(nullptr), | 
 |       __end_cap_(nullptr, _VSTD::move(__a)) {} | 
 | #endif | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | __vector_base<_Tp, _Allocator>::~__vector_base() | 
 | { | 
 |     if (__begin_ != nullptr) | 
 |     { | 
 |         clear(); | 
 |         __alloc_traits::deallocate(__alloc(), __begin_, capacity()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator /* = allocator<_Tp> */> | 
 | class _LIBCPP_TEMPLATE_VIS vector | 
 |     : private __vector_base<_Tp, _Allocator> | 
 | { | 
 | private: | 
 |     typedef __vector_base<_Tp, _Allocator>           __base; | 
 |     typedef allocator<_Tp>                           __default_allocator_type; | 
 | public: | 
 |     typedef vector                                   __self; | 
 |     typedef _Tp                                      value_type; | 
 |     typedef _Allocator                               allocator_type; | 
 |     typedef typename __base::__alloc_traits          __alloc_traits; | 
 |     typedef typename __base::reference               reference; | 
 |     typedef typename __base::const_reference         const_reference; | 
 |     typedef typename __base::size_type               size_type; | 
 |     typedef typename __base::difference_type         difference_type; | 
 |     typedef typename __base::pointer                 pointer; | 
 |     typedef typename __base::const_pointer           const_pointer; | 
 |     typedef __wrap_iter<pointer>                     iterator; | 
 |     typedef __wrap_iter<const_pointer>               const_iterator; | 
 |     typedef _VSTD::reverse_iterator<iterator>         reverse_iterator; | 
 |     typedef _VSTD::reverse_iterator<const_iterator>   const_reverse_iterator; | 
 |  | 
 |     static_assert((is_same<typename allocator_type::value_type, value_type>::value), | 
 |                   "Allocator::value_type must be same type as value_type"); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector() _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) | 
 |         { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |             __get_db()->__insert_c(this); | 
 | #endif | 
 |         } | 
 |     _LIBCPP_INLINE_VISIBILITY explicit vector(const allocator_type& __a) | 
 | #if _LIBCPP_STD_VER <= 14 | 
 |         _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value) | 
 | #else | 
 |         _NOEXCEPT | 
 | #endif | 
 |         : __base(__a) | 
 |     { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |         __get_db()->__insert_c(this); | 
 | #endif | 
 |     } | 
 |     explicit vector(size_type __n); | 
 | #if _LIBCPP_STD_VER > 11 | 
 |     explicit vector(size_type __n, const allocator_type& __a); | 
 | #endif | 
 |     vector(size_type __n, const value_type& __x); | 
 |     vector(size_type __n, const value_type& __x, const allocator_type& __a); | 
 |     template <class _InputIterator> | 
 |         vector(_InputIterator __first, | 
 |                typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                                  !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |                                  is_constructible< | 
 |                                     value_type, | 
 |                                     typename iterator_traits<_InputIterator>::reference>::value, | 
 |                                  _InputIterator>::type __last); | 
 |     template <class _InputIterator> | 
 |         vector(_InputIterator __first, _InputIterator __last, const allocator_type& __a, | 
 |                typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                                  !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |                                  is_constructible< | 
 |                                     value_type, | 
 |                                     typename iterator_traits<_InputIterator>::reference>::value>::type* = 0); | 
 |     template <class _ForwardIterator> | 
 |         vector(_ForwardIterator __first, | 
 |                typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |                                  is_constructible< | 
 |                                     value_type, | 
 |                                     typename iterator_traits<_ForwardIterator>::reference>::value, | 
 |                                  _ForwardIterator>::type __last); | 
 |     template <class _ForwardIterator> | 
 |         vector(_ForwardIterator __first, _ForwardIterator __last, const allocator_type& __a, | 
 |                typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |                                  is_constructible< | 
 |                                     value_type, | 
 |                                     typename iterator_traits<_ForwardIterator>::reference>::value>::type* = 0); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     ~vector() | 
 |     { | 
 |         __annotate_delete(); | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |         __get_db()->__erase_c(this); | 
 | #endif | 
 |     } | 
 |  | 
 |     vector(const vector& __x); | 
 |     vector(const vector& __x, const __identity_t<allocator_type>& __a); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector& operator=(const vector& __x); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector(initializer_list<value_type> __il); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector(initializer_list<value_type> __il, const allocator_type& __a); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector(vector&& __x) | 
 | #if _LIBCPP_STD_VER > 14 | 
 |         _NOEXCEPT; | 
 | #else | 
 |         _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value); | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector(vector&& __x, const __identity_t<allocator_type>& __a); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector& operator=(vector&& __x) | 
 |         _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector& operator=(initializer_list<value_type> __il) | 
 |         {assign(__il.begin(), __il.end()); return *this;} | 
 |  | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 |     template <class _InputIterator> | 
 |         typename enable_if | 
 |         < | 
 |              __is_cpp17_input_iterator  <_InputIterator>::value && | 
 |             !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |             is_constructible< | 
 |                  value_type, | 
 |                  typename iterator_traits<_InputIterator>::reference>::value, | 
 |             void | 
 |         >::type | 
 |         assign(_InputIterator __first, _InputIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |             is_constructible< | 
 |                  value_type, | 
 |                  typename iterator_traits<_ForwardIterator>::reference>::value, | 
 |             void | 
 |         >::type | 
 |         assign(_ForwardIterator __first, _ForwardIterator __last); | 
 |  | 
 |     void assign(size_type __n, const_reference __u); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void assign(initializer_list<value_type> __il) | 
 |         {assign(__il.begin(), __il.end());} | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     allocator_type get_allocator() const _NOEXCEPT | 
 |         {return this->__alloc();} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY iterator               begin() _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY const_iterator         begin()   const _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY iterator               end() _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY const_iterator         end()     const _NOEXCEPT; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     reverse_iterator       rbegin() _NOEXCEPT | 
 |         {return       reverse_iterator(end());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator rbegin()  const _NOEXCEPT | 
 |         {return const_reverse_iterator(end());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     reverse_iterator       rend() _NOEXCEPT | 
 |         {return       reverse_iterator(begin());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator rend()    const _NOEXCEPT | 
 |         {return const_reverse_iterator(begin());} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator         cbegin()  const _NOEXCEPT | 
 |         {return begin();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator         cend()    const _NOEXCEPT | 
 |         {return end();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator crbegin() const _NOEXCEPT | 
 |         {return rbegin();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator crend()   const _NOEXCEPT | 
 |         {return rend();} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type size() const _NOEXCEPT | 
 |         {return static_cast<size_type>(this->__end_ - this->__begin_);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type capacity() const _NOEXCEPT | 
 |         {return __base::capacity();} | 
 |     _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY | 
 |     bool empty() const _NOEXCEPT | 
 |         {return this->__begin_ == this->__end_;} | 
 |     size_type max_size() const _NOEXCEPT; | 
 |     void reserve(size_type __n); | 
 |     void shrink_to_fit() _NOEXCEPT; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY reference       operator[](size_type __n) _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY const_reference operator[](size_type __n) const _NOEXCEPT; | 
 |     reference       at(size_type __n); | 
 |     const_reference at(size_type __n) const; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY reference       front() _NOEXCEPT | 
 |     { | 
 |         _LIBCPP_ASSERT(!empty(), "front() called on an empty vector"); | 
 |         return *this->__begin_; | 
 |     } | 
 |     _LIBCPP_INLINE_VISIBILITY const_reference front() const _NOEXCEPT | 
 |     { | 
 |         _LIBCPP_ASSERT(!empty(), "front() called on an empty vector"); | 
 |         return *this->__begin_; | 
 |     } | 
 |     _LIBCPP_INLINE_VISIBILITY reference       back() _NOEXCEPT | 
 |     { | 
 |         _LIBCPP_ASSERT(!empty(), "back() called on an empty vector"); | 
 |         return *(this->__end_ - 1); | 
 |     } | 
 |     _LIBCPP_INLINE_VISIBILITY const_reference back()  const _NOEXCEPT | 
 |     { | 
 |         _LIBCPP_ASSERT(!empty(), "back() called on an empty vector"); | 
 |         return *(this->__end_ - 1); | 
 |     } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     value_type*       data() _NOEXCEPT | 
 |         {return _VSTD::__to_address(this->__begin_);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const value_type* data() const _NOEXCEPT | 
 |         {return _VSTD::__to_address(this->__begin_);} | 
 |  | 
 | #ifdef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __emplace_back(const value_type& __x) { push_back(__x); } | 
 | #else | 
 |     template <class _Arg> | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __emplace_back(_Arg&& __arg) { | 
 |       emplace_back(_VSTD::forward<_Arg>(__arg)); | 
 |     } | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY void push_back(const_reference __x); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY void push_back(value_type&& __x); | 
 |  | 
 |     template <class... _Args> | 
 |         _LIBCPP_INLINE_VISIBILITY | 
 | #if _LIBCPP_STD_VER > 14 | 
 |         reference emplace_back(_Args&&... __args); | 
 | #else | 
 |         void      emplace_back(_Args&&... __args); | 
 | #endif | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void pop_back(); | 
 |  | 
 |     iterator insert(const_iterator __position, const_reference __x); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     iterator insert(const_iterator __position, value_type&& __x); | 
 |     template <class... _Args> | 
 |         iterator emplace(const_iterator __position, _Args&&... __args); | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 |     iterator insert(const_iterator __position, size_type __n, const_reference __x); | 
 |     template <class _InputIterator> | 
 |         typename enable_if | 
 |         < | 
 |              __is_cpp17_input_iterator  <_InputIterator>::value && | 
 |             !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |             is_constructible< | 
 |                  value_type, | 
 |                  typename iterator_traits<_InputIterator>::reference>::value, | 
 |             iterator | 
 |         >::type | 
 |         insert(const_iterator __position, _InputIterator __first, _InputIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |             is_constructible< | 
 |                  value_type, | 
 |                  typename iterator_traits<_ForwardIterator>::reference>::value, | 
 |             iterator | 
 |         >::type | 
 |         insert(const_iterator __position, _ForwardIterator __first, _ForwardIterator __last); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator insert(const_iterator __position, initializer_list<value_type> __il) | 
 |         {return insert(__position, __il.begin(), __il.end());} | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY iterator erase(const_iterator __position); | 
 |     iterator erase(const_iterator __first, const_iterator __last); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void clear() _NOEXCEPT | 
 |     { | 
 |         size_type __old_size = size(); | 
 |         __base::clear(); | 
 |         __annotate_shrink(__old_size); | 
 |         __invalidate_all_iterators(); | 
 |     } | 
 |  | 
 |     void resize(size_type __sz); | 
 |     void resize(size_type __sz, const_reference __x); | 
 |  | 
 |     void swap(vector&) | 
 | #if _LIBCPP_STD_VER >= 14 | 
 |         _NOEXCEPT; | 
 | #else | 
 |         _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || | 
 |                     __is_nothrow_swappable<allocator_type>::value); | 
 | #endif | 
 |  | 
 |     bool __invariants() const; | 
 |  | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |  | 
 |     bool __dereferenceable(const const_iterator* __i) const; | 
 |     bool __decrementable(const const_iterator* __i) const; | 
 |     bool __addable(const const_iterator* __i, ptrdiff_t __n) const; | 
 |     bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const; | 
 |  | 
 | #endif // _LIBCPP_DEBUG_LEVEL == 2 | 
 |  | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY void __invalidate_all_iterators(); | 
 |     _LIBCPP_INLINE_VISIBILITY void __invalidate_iterators_past(pointer __new_last); | 
 |     void __vallocate(size_type __n); | 
 |     void __vdeallocate() _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY size_type __recommend(size_type __new_size) const; | 
 |     void __construct_at_end(size_type __n); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __construct_at_end(size_type __n, const_reference __x); | 
 |     template <class _ForwardIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |             void | 
 |         >::type | 
 |         __construct_at_end(_ForwardIterator __first, _ForwardIterator __last, size_type __n); | 
 |     void __append(size_type __n); | 
 |     void __append(size_type __n, const_reference __x); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator       __make_iter(pointer __p) _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator __make_iter(const_pointer __p) const _NOEXCEPT; | 
 |     void __swap_out_circular_buffer(__split_buffer<value_type, allocator_type&>& __v); | 
 |     pointer __swap_out_circular_buffer(__split_buffer<value_type, allocator_type&>& __v, pointer __p); | 
 |     void __move_range(pointer __from_s, pointer __from_e, pointer __to); | 
 |     void __move_assign(vector& __c, true_type) | 
 |         _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value); | 
 |     void __move_assign(vector& __c, false_type) | 
 |         _NOEXCEPT_(__alloc_traits::is_always_equal::value); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __destruct_at_end(pointer __new_last) _NOEXCEPT | 
 |     { | 
 |         __invalidate_iterators_past(__new_last); | 
 |         size_type __old_size = size(); | 
 |         __base::__destruct_at_end(__new_last); | 
 |         __annotate_shrink(__old_size); | 
 |     } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     template <class _Up> | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     inline void __push_back_slow_path(_Up&& __x); | 
 |  | 
 |     template <class... _Args> | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     inline void __emplace_back_slow_path(_Args&&... __args); | 
 | #else | 
 |     template <class _Up> | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     inline void __push_back_slow_path(_Up& __x); | 
 | #endif | 
 |  | 
 |     // The following functions are no-ops outside of AddressSanitizer mode. | 
 |     // We call annotatations only for the default Allocator because other allocators | 
 |     // may not meet the AddressSanitizer alignment constraints. | 
 |     // See the documentation for __sanitizer_annotate_contiguous_container for more details. | 
 | #ifndef _LIBCPP_HAS_NO_ASAN | 
 |     void __annotate_contiguous_container(const void *__beg, const void *__end, | 
 |                                          const void *__old_mid, | 
 |                                          const void *__new_mid) const | 
 |     { | 
 |  | 
 |       if (__beg && is_same<allocator_type, __default_allocator_type>::value) | 
 |         __sanitizer_annotate_contiguous_container(__beg, __end, __old_mid, __new_mid); | 
 |     } | 
 | #else | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __annotate_contiguous_container(const void*, const void*, const void*, | 
 |                                          const void*) const _NOEXCEPT {} | 
 | #endif | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __annotate_new(size_type __current_size) const _NOEXCEPT { | 
 |       __annotate_contiguous_container(data(), data() + capacity(), | 
 |                                       data() + capacity(), data() + __current_size); | 
 |     } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __annotate_delete() const _NOEXCEPT { | 
 |       __annotate_contiguous_container(data(), data() + capacity(), | 
 |                                       data() + size(), data() + capacity()); | 
 |     } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __annotate_increase(size_type __n) const _NOEXCEPT | 
 |     { | 
 |       __annotate_contiguous_container(data(), data() + capacity(), | 
 |                                       data() + size(), data() + size() + __n); | 
 |     } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __annotate_shrink(size_type __old_size) const _NOEXCEPT | 
 |     { | 
 |       __annotate_contiguous_container(data(), data() + capacity(), | 
 |                                       data() + __old_size, data() + size()); | 
 |     } | 
 |  | 
 |   struct _ConstructTransaction { | 
 |     explicit _ConstructTransaction(vector &__v, size_type __n) | 
 |       : __v_(__v),  __pos_(__v.__end_), __new_end_(__v.__end_ + __n) { | 
 | #ifndef _LIBCPP_HAS_NO_ASAN | 
 |       __v_.__annotate_increase(__n); | 
 | #endif | 
 |     } | 
 |     ~_ConstructTransaction() { | 
 |       __v_.__end_ = __pos_; | 
 | #ifndef _LIBCPP_HAS_NO_ASAN | 
 |       if (__pos_ != __new_end_) { | 
 |         __v_.__annotate_shrink(__new_end_ - __v_.__begin_); | 
 |       } | 
 | #endif | 
 |     } | 
 |  | 
 |     vector &__v_; | 
 |     pointer __pos_; | 
 |     const_pointer const __new_end_; | 
 |  | 
 |   private: | 
 |     _ConstructTransaction(_ConstructTransaction const&) = delete; | 
 |     _ConstructTransaction& operator=(_ConstructTransaction const&) = delete; | 
 |   }; | 
 |  | 
 |   template <class ..._Args> | 
 |   _LIBCPP_INLINE_VISIBILITY | 
 |   void __construct_one_at_end(_Args&& ...__args) { | 
 |     _ConstructTransaction __tx(*this, 1); | 
 |     __alloc_traits::construct(this->__alloc(), _VSTD::__to_address(__tx.__pos_), | 
 |         _VSTD::forward<_Args>(__args)...); | 
 |     ++__tx.__pos_; | 
 |   } | 
 | }; | 
 |  | 
 | #ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES | 
 | template<class _InputIterator, | 
 |          class _Alloc = allocator<__iter_value_type<_InputIterator>>, | 
 |          class = _EnableIf<__is_allocator<_Alloc>::value> | 
 |          > | 
 | vector(_InputIterator, _InputIterator) | 
 |   -> vector<__iter_value_type<_InputIterator>, _Alloc>; | 
 |  | 
 | template<class _InputIterator, | 
 |          class _Alloc, | 
 |          class = _EnableIf<__is_allocator<_Alloc>::value> | 
 |          > | 
 | vector(_InputIterator, _InputIterator, _Alloc) | 
 |   -> vector<__iter_value_type<_InputIterator>, _Alloc>; | 
 | #endif | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__swap_out_circular_buffer(__split_buffer<value_type, allocator_type&>& __v) | 
 | { | 
 |  | 
 |     __annotate_delete(); | 
 |     _VSTD::__construct_backward_with_exception_guarantees(this->__alloc(), this->__begin_, this->__end_, __v.__begin_); | 
 |     _VSTD::swap(this->__begin_, __v.__begin_); | 
 |     _VSTD::swap(this->__end_, __v.__end_); | 
 |     _VSTD::swap(this->__end_cap(), __v.__end_cap()); | 
 |     __v.__first_ = __v.__begin_; | 
 |     __annotate_new(size()); | 
 |     __invalidate_all_iterators(); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::pointer | 
 | vector<_Tp, _Allocator>::__swap_out_circular_buffer(__split_buffer<value_type, allocator_type&>& __v, pointer __p) | 
 | { | 
 |     __annotate_delete(); | 
 |     pointer __r = __v.__begin_; | 
 |     _VSTD::__construct_backward_with_exception_guarantees(this->__alloc(), this->__begin_, __p, __v.__begin_); | 
 |     _VSTD::__construct_forward_with_exception_guarantees(this->__alloc(), __p, this->__end_, __v.__end_); | 
 |     _VSTD::swap(this->__begin_, __v.__begin_); | 
 |     _VSTD::swap(this->__end_, __v.__end_); | 
 |     _VSTD::swap(this->__end_cap(), __v.__end_cap()); | 
 |     __v.__first_ = __v.__begin_; | 
 |     __annotate_new(size()); | 
 |     __invalidate_all_iterators(); | 
 |     return __r; | 
 | } | 
 |  | 
 | //  Allocate space for __n objects | 
 | //  throws length_error if __n > max_size() | 
 | //  throws (probably bad_alloc) if memory run out | 
 | //  Precondition:  __begin_ == __end_ == __end_cap() == 0 | 
 | //  Precondition:  __n > 0 | 
 | //  Postcondition:  capacity() == __n | 
 | //  Postcondition:  size() == 0 | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__vallocate(size_type __n) | 
 | { | 
 |     if (__n > max_size()) | 
 |         this->__throw_length_error(); | 
 |     this->__begin_ = this->__end_ = __alloc_traits::allocate(this->__alloc(), __n); | 
 |     this->__end_cap() = this->__begin_ + __n; | 
 |     __annotate_new(0); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__vdeallocate() _NOEXCEPT | 
 | { | 
 |     if (this->__begin_ != nullptr) | 
 |     { | 
 |         clear(); | 
 |         __alloc_traits::deallocate(this->__alloc(), this->__begin_, capacity()); | 
 |         this->__begin_ = this->__end_ = this->__end_cap() = nullptr; | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::size_type | 
 | vector<_Tp, _Allocator>::max_size() const _NOEXCEPT | 
 | { | 
 |     return _VSTD::min<size_type>(__alloc_traits::max_size(this->__alloc()), | 
 |                                  numeric_limits<difference_type>::max()); | 
 | } | 
 |  | 
 | //  Precondition:  __new_size > capacity() | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::size_type | 
 | vector<_Tp, _Allocator>::__recommend(size_type __new_size) const | 
 | { | 
 |     const size_type __ms = max_size(); | 
 |     if (__new_size > __ms) | 
 |         this->__throw_length_error(); | 
 |     const size_type __cap = capacity(); | 
 |     if (__cap >= __ms / 2) | 
 |         return __ms; | 
 |     return _VSTD::max<size_type>(2 * __cap, __new_size); | 
 | } | 
 |  | 
 | //  Default constructs __n objects starting at __end_ | 
 | //  throws if construction throws | 
 | //  Precondition:  __n > 0 | 
 | //  Precondition:  size() + __n <= capacity() | 
 | //  Postcondition:  size() == size() + __n | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__construct_at_end(size_type __n) | 
 | { | 
 |     _ConstructTransaction __tx(*this, __n); | 
 |     const_pointer __new_end = __tx.__new_end_; | 
 |     for (pointer __pos = __tx.__pos_; __pos != __new_end; ++__pos, __tx.__pos_ = __pos) { | 
 |         __alloc_traits::construct(this->__alloc(), _VSTD::__to_address(__pos)); | 
 |     } | 
 | } | 
 |  | 
 | //  Copy constructs __n objects starting at __end_ from __x | 
 | //  throws if construction throws | 
 | //  Precondition:  __n > 0 | 
 | //  Precondition:  size() + __n <= capacity() | 
 | //  Postcondition:  size() == old size() + __n | 
 | //  Postcondition:  [i] == __x for all i in [size() - __n, __n) | 
 | template <class _Tp, class _Allocator> | 
 | inline | 
 | void | 
 | vector<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x) | 
 | { | 
 |     _ConstructTransaction __tx(*this, __n); | 
 |     const_pointer __new_end = __tx.__new_end_; | 
 |     for (pointer __pos = __tx.__pos_; __pos != __new_end; ++__pos, __tx.__pos_ = __pos) { | 
 |         __alloc_traits::construct(this->__alloc(), _VSTD::__to_address(__pos), __x); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _ForwardIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |     void | 
 | >::type | 
 | vector<_Tp, _Allocator>::__construct_at_end(_ForwardIterator __first, _ForwardIterator __last, size_type __n) | 
 | { | 
 |     _ConstructTransaction __tx(*this, __n); | 
 |     _VSTD::__construct_range_forward(this->__alloc(), __first, __last, __tx.__pos_); | 
 | } | 
 |  | 
 | //  Default constructs __n objects starting at __end_ | 
 | //  throws if construction throws | 
 | //  Postcondition:  size() == size() + __n | 
 | //  Exception safety: strong. | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__append(size_type __n) | 
 | { | 
 |     if (static_cast<size_type>(this->__end_cap() - this->__end_) >= __n) | 
 |         this->__construct_at_end(__n); | 
 |     else | 
 |     { | 
 |         allocator_type& __a = this->__alloc(); | 
 |         __split_buffer<value_type, allocator_type&> __v(__recommend(size() + __n), size(), __a); | 
 |         __v.__construct_at_end(__n); | 
 |         __swap_out_circular_buffer(__v); | 
 |     } | 
 | } | 
 |  | 
 | //  Default constructs __n objects starting at __end_ | 
 | //  throws if construction throws | 
 | //  Postcondition:  size() == size() + __n | 
 | //  Exception safety: strong. | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__append(size_type __n, const_reference __x) | 
 | { | 
 |     if (static_cast<size_type>(this->__end_cap() - this->__end_) >= __n) | 
 |         this->__construct_at_end(__n, __x); | 
 |     else | 
 |     { | 
 |         allocator_type& __a = this->__alloc(); | 
 |         __split_buffer<value_type, allocator_type&> __v(__recommend(size() + __n), size(), __a); | 
 |         __v.__construct_at_end(__n, __x); | 
 |         __swap_out_circular_buffer(__v); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | vector<_Tp, _Allocator>::vector(size_type __n) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n); | 
 |     } | 
 | } | 
 |  | 
 | #if _LIBCPP_STD_VER > 11 | 
 | template <class _Tp, class _Allocator> | 
 | vector<_Tp, _Allocator>::vector(size_type __n, const allocator_type& __a) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n); | 
 |     } | 
 | } | 
 | #endif | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | vector<_Tp, _Allocator>::vector(size_type __n, const value_type& __x) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n, __x); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | vector<_Tp, _Allocator>::vector(size_type __n, const value_type& __x, const allocator_type& __a) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n, __x); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _InputIterator> | 
 | vector<_Tp, _Allocator>::vector(_InputIterator __first, | 
 |        typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                          !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |                          is_constructible< | 
 |                             value_type, | 
 |                             typename iterator_traits<_InputIterator>::reference>::value, | 
 |                           _InputIterator>::type __last) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     for (; __first != __last; ++__first) | 
 |         __emplace_back(*__first); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _InputIterator> | 
 | vector<_Tp, _Allocator>::vector(_InputIterator __first, _InputIterator __last, const allocator_type& __a, | 
 |        typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                          !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |                          is_constructible< | 
 |                             value_type, | 
 |                             typename iterator_traits<_InputIterator>::reference>::value>::type*) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     for (; __first != __last; ++__first) | 
 |         __emplace_back(*__first); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _ForwardIterator> | 
 | vector<_Tp, _Allocator>::vector(_ForwardIterator __first, | 
 |                                 typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |                                 is_constructible< | 
 |                                    value_type, | 
 |                                    typename iterator_traits<_ForwardIterator>::reference>::value, | 
 |                                                    _ForwardIterator>::type __last) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__first, __last, __n); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _ForwardIterator> | 
 | vector<_Tp, _Allocator>::vector(_ForwardIterator __first, _ForwardIterator __last, const allocator_type& __a, | 
 |                                 typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |                                 is_constructible< | 
 |                                    value_type, | 
 |                                    typename iterator_traits<_ForwardIterator>::reference>::value>::type*) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__first, __last, __n); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | vector<_Tp, _Allocator>::vector(const vector& __x) | 
 |     : __base(__alloc_traits::select_on_container_copy_construction(__x.__alloc())) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     size_type __n = __x.size(); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__x.__begin_, __x.__end_, __n); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | vector<_Tp, _Allocator>::vector(const vector& __x, const __identity_t<allocator_type>& __a) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     size_type __n = __x.size(); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__x.__begin_, __x.__end_, __n); | 
 |     } | 
 | } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<_Tp, _Allocator>::vector(vector&& __x) | 
 | #if _LIBCPP_STD_VER > 14 | 
 |         _NOEXCEPT | 
 | #else | 
 |         _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) | 
 | #endif | 
 |     : __base(_VSTD::move(__x.__alloc())) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 |     __get_db()->swap(this, &__x); | 
 | #endif | 
 |     this->__begin_ = __x.__begin_; | 
 |     this->__end_ = __x.__end_; | 
 |     this->__end_cap() = __x.__end_cap(); | 
 |     __x.__begin_ = __x.__end_ = __x.__end_cap() = nullptr; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<_Tp, _Allocator>::vector(vector&& __x, const __identity_t<allocator_type>& __a) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__a == __x.__alloc()) | 
 |     { | 
 |         this->__begin_ = __x.__begin_; | 
 |         this->__end_ = __x.__end_; | 
 |         this->__end_cap() = __x.__end_cap(); | 
 |         __x.__begin_ = __x.__end_ = __x.__end_cap() = nullptr; | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |         __get_db()->swap(this, &__x); | 
 | #endif | 
 |     } | 
 |     else | 
 |     { | 
 |         typedef move_iterator<iterator> _Ip; | 
 |         assign(_Ip(__x.begin()), _Ip(__x.end())); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<_Tp, _Allocator>::vector(initializer_list<value_type> __il) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__il.size() > 0) | 
 |     { | 
 |         __vallocate(__il.size()); | 
 |         __construct_at_end(__il.begin(), __il.end(), __il.size()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<_Tp, _Allocator>::vector(initializer_list<value_type> __il, const allocator_type& __a) | 
 |     : __base(__a) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__insert_c(this); | 
 | #endif | 
 |     if (__il.size() > 0) | 
 |     { | 
 |         __vallocate(__il.size()); | 
 |         __construct_at_end(__il.begin(), __il.end(), __il.size()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<_Tp, _Allocator>& | 
 | vector<_Tp, _Allocator>::operator=(vector&& __x) | 
 |     _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) | 
 | { | 
 |     __move_assign(__x, integral_constant<bool, | 
 |           __alloc_traits::propagate_on_container_move_assignment::value>()); | 
 |     return *this; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__move_assign(vector& __c, false_type) | 
 |     _NOEXCEPT_(__alloc_traits::is_always_equal::value) | 
 | { | 
 |     if (__base::__alloc() != __c.__alloc()) | 
 |     { | 
 |         typedef move_iterator<iterator> _Ip; | 
 |         assign(_Ip(__c.begin()), _Ip(__c.end())); | 
 |     } | 
 |     else | 
 |         __move_assign(__c, true_type()); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__move_assign(vector& __c, true_type) | 
 |     _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) | 
 | { | 
 |     __vdeallocate(); | 
 |     __base::__move_assign_alloc(__c); // this can throw | 
 |     this->__begin_ = __c.__begin_; | 
 |     this->__end_ = __c.__end_; | 
 |     this->__end_cap() = __c.__end_cap(); | 
 |     __c.__begin_ = __c.__end_ = __c.__end_cap() = nullptr; | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->swap(this, &__c); | 
 | #endif | 
 | } | 
 |  | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<_Tp, _Allocator>& | 
 | vector<_Tp, _Allocator>::operator=(const vector& __x) | 
 | { | 
 |     if (this != &__x) | 
 |     { | 
 |         __base::__copy_assign_alloc(__x); | 
 |         assign(__x.__begin_, __x.__end_); | 
 |     } | 
 |     return *this; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _InputIterator> | 
 | typename enable_if | 
 | < | 
 |      __is_cpp17_input_iterator  <_InputIterator>::value && | 
 |     !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |     is_constructible< | 
 |        _Tp, | 
 |        typename iterator_traits<_InputIterator>::reference>::value, | 
 |     void | 
 | >::type | 
 | vector<_Tp, _Allocator>::assign(_InputIterator __first, _InputIterator __last) | 
 | { | 
 |     clear(); | 
 |     for (; __first != __last; ++__first) | 
 |         __emplace_back(*__first); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _ForwardIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |     is_constructible< | 
 |        _Tp, | 
 |        typename iterator_traits<_ForwardIterator>::reference>::value, | 
 |     void | 
 | >::type | 
 | vector<_Tp, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last) | 
 | { | 
 |     size_type __new_size = static_cast<size_type>(_VSTD::distance(__first, __last)); | 
 |     if (__new_size <= capacity()) | 
 |     { | 
 |         _ForwardIterator __mid = __last; | 
 |         bool __growing = false; | 
 |         if (__new_size > size()) | 
 |         { | 
 |             __growing = true; | 
 |             __mid =  __first; | 
 |             _VSTD::advance(__mid, size()); | 
 |         } | 
 |         pointer __m = _VSTD::copy(__first, __mid, this->__begin_); | 
 |         if (__growing) | 
 |             __construct_at_end(__mid, __last, __new_size - size()); | 
 |         else | 
 |             this->__destruct_at_end(__m); | 
 |     } | 
 |     else | 
 |     { | 
 |         __vdeallocate(); | 
 |         __vallocate(__recommend(__new_size)); | 
 |         __construct_at_end(__first, __last, __new_size); | 
 |     } | 
 |     __invalidate_all_iterators(); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::assign(size_type __n, const_reference __u) | 
 | { | 
 |     if (__n <= capacity()) | 
 |     { | 
 |         size_type __s = size(); | 
 |         _VSTD::fill_n(this->__begin_, _VSTD::min(__n, __s), __u); | 
 |         if (__n > __s) | 
 |             __construct_at_end(__n - __s, __u); | 
 |         else | 
 |             this->__destruct_at_end(this->__begin_ + __n); | 
 |     } | 
 |     else | 
 |     { | 
 |         __vdeallocate(); | 
 |         __vallocate(__recommend(static_cast<size_type>(__n))); | 
 |         __construct_at_end(__n, __u); | 
 |     } | 
 |     __invalidate_all_iterators(); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::__make_iter(pointer __p) _NOEXCEPT | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     return iterator(this, __p); | 
 | #else | 
 |     return iterator(__p); | 
 | #endif | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::const_iterator | 
 | vector<_Tp, _Allocator>::__make_iter(const_pointer __p) const _NOEXCEPT | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     return const_iterator(this, __p); | 
 | #else | 
 |     return const_iterator(__p); | 
 | #endif | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::begin() _NOEXCEPT | 
 | { | 
 |     return __make_iter(this->__begin_); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::const_iterator | 
 | vector<_Tp, _Allocator>::begin() const _NOEXCEPT | 
 | { | 
 |     return __make_iter(this->__begin_); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::end() _NOEXCEPT | 
 | { | 
 |     return __make_iter(this->__end_); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::const_iterator | 
 | vector<_Tp, _Allocator>::end() const _NOEXCEPT | 
 | { | 
 |     return __make_iter(this->__end_); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::reference | 
 | vector<_Tp, _Allocator>::operator[](size_type __n) _NOEXCEPT | 
 | { | 
 |     _LIBCPP_ASSERT(__n < size(), "vector[] index out of bounds"); | 
 |     return this->__begin_[__n]; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::const_reference | 
 | vector<_Tp, _Allocator>::operator[](size_type __n) const _NOEXCEPT | 
 | { | 
 |     _LIBCPP_ASSERT(__n < size(), "vector[] index out of bounds"); | 
 |     return this->__begin_[__n]; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::reference | 
 | vector<_Tp, _Allocator>::at(size_type __n) | 
 | { | 
 |     if (__n >= size()) | 
 |         this->__throw_out_of_range(); | 
 |     return this->__begin_[__n]; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::const_reference | 
 | vector<_Tp, _Allocator>::at(size_type __n) const | 
 | { | 
 |     if (__n >= size()) | 
 |         this->__throw_out_of_range(); | 
 |     return this->__begin_[__n]; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::reserve(size_type __n) | 
 | { | 
 |     if (__n > capacity()) | 
 |     { | 
 |         allocator_type& __a = this->__alloc(); | 
 |         __split_buffer<value_type, allocator_type&> __v(__n, size(), __a); | 
 |         __swap_out_circular_buffer(__v); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::shrink_to_fit() _NOEXCEPT | 
 | { | 
 |     if (capacity() > size()) | 
 |     { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         try | 
 |         { | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |             allocator_type& __a = this->__alloc(); | 
 |             __split_buffer<value_type, allocator_type&> __v(size(), size(), __a); | 
 |             __swap_out_circular_buffer(__v); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         } | 
 |         catch (...) | 
 |         { | 
 |         } | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _Up> | 
 | void | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 | vector<_Tp, _Allocator>::__push_back_slow_path(_Up&& __x) | 
 | #else | 
 | vector<_Tp, _Allocator>::__push_back_slow_path(_Up& __x) | 
 | #endif | 
 | { | 
 |     allocator_type& __a = this->__alloc(); | 
 |     __split_buffer<value_type, allocator_type&> __v(__recommend(size() + 1), size(), __a); | 
 |     // __v.push_back(_VSTD::forward<_Up>(__x)); | 
 |     __alloc_traits::construct(__a, _VSTD::__to_address(__v.__end_), _VSTD::forward<_Up>(__x)); | 
 |     __v.__end_++; | 
 |     __swap_out_circular_buffer(__v); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | vector<_Tp, _Allocator>::push_back(const_reference __x) | 
 | { | 
 |     if (this->__end_ != this->__end_cap()) | 
 |     { | 
 |         __construct_one_at_end(__x); | 
 |     } | 
 |     else | 
 |         __push_back_slow_path(__x); | 
 | } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | vector<_Tp, _Allocator>::push_back(value_type&& __x) | 
 | { | 
 |     if (this->__end_ < this->__end_cap()) | 
 |     { | 
 |         __construct_one_at_end(_VSTD::move(__x)); | 
 |     } | 
 |     else | 
 |         __push_back_slow_path(_VSTD::move(__x)); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class... _Args> | 
 | void | 
 | vector<_Tp, _Allocator>::__emplace_back_slow_path(_Args&&... __args) | 
 | { | 
 |     allocator_type& __a = this->__alloc(); | 
 |     __split_buffer<value_type, allocator_type&> __v(__recommend(size() + 1), size(), __a); | 
 | //    __v.emplace_back(_VSTD::forward<_Args>(__args)...); | 
 |     __alloc_traits::construct(__a, _VSTD::__to_address(__v.__end_), _VSTD::forward<_Args>(__args)...); | 
 |     __v.__end_++; | 
 |     __swap_out_circular_buffer(__v); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class... _Args> | 
 | inline | 
 | #if _LIBCPP_STD_VER > 14 | 
 | typename vector<_Tp, _Allocator>::reference | 
 | #else | 
 | void | 
 | #endif | 
 | vector<_Tp, _Allocator>::emplace_back(_Args&&... __args) | 
 | { | 
 |     if (this->__end_ < this->__end_cap()) | 
 |     { | 
 |         __construct_one_at_end(_VSTD::forward<_Args>(__args)...); | 
 |     } | 
 |     else | 
 |         __emplace_back_slow_path(_VSTD::forward<_Args>(__args)...); | 
 | #if _LIBCPP_STD_VER > 14 | 
 |     return this->back(); | 
 | #endif | 
 | } | 
 |  | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline | 
 | void | 
 | vector<_Tp, _Allocator>::pop_back() | 
 | { | 
 |     _LIBCPP_ASSERT(!empty(), "vector::pop_back called on an empty vector"); | 
 |     this->__destruct_at_end(this->__end_ - 1); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::erase(const_iterator __position) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::erase(iterator) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     _LIBCPP_ASSERT(__position != end(), | 
 |         "vector::erase(iterator) called with a non-dereferenceable iterator"); | 
 |     difference_type __ps = __position - cbegin(); | 
 |     pointer __p = this->__begin_ + __ps; | 
 |     this->__destruct_at_end(_VSTD::move(__p + 1, this->__end_, __p)); | 
 |     this->__invalidate_iterators_past(__p-1); | 
 |     iterator __r = __make_iter(__p); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::erase(const_iterator __first, const_iterator __last) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this, | 
 |         "vector::erase(iterator,  iterator) called with an iterator not" | 
 |         " referring to this vector"); | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__last) == this, | 
 |         "vector::erase(iterator,  iterator) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     _LIBCPP_ASSERT(__first <= __last, "vector::erase(first, last) called with invalid range"); | 
 |     pointer __p = this->__begin_ + (__first - begin()); | 
 |     if (__first != __last) { | 
 |         this->__destruct_at_end(_VSTD::move(__p + (__last - __first), this->__end_, __p)); | 
 |         this->__invalidate_iterators_past(__p - 1); | 
 |     } | 
 |     iterator __r = __make_iter(__p); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::__move_range(pointer __from_s, pointer __from_e, pointer __to) | 
 | { | 
 |     pointer __old_last = this->__end_; | 
 |     difference_type __n = __old_last - __to; | 
 |     { | 
 |       pointer __i = __from_s + __n; | 
 |       _ConstructTransaction __tx(*this, __from_e - __i); | 
 |       for (pointer __pos = __tx.__pos_; __i < __from_e; | 
 |            ++__i, ++__pos, __tx.__pos_ = __pos) { | 
 |           __alloc_traits::construct(this->__alloc(), | 
 |                                     _VSTD::__to_address(__pos), | 
 |                                     _VSTD::move(*__i)); | 
 |       } | 
 |     } | 
 |     _VSTD::move_backward(__from_s, __from_s + __n, __old_last); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::insert(const_iterator __position, const_reference __x) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::insert(iterator, x) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     pointer __p = this->__begin_ + (__position - begin()); | 
 |     if (this->__end_ < this->__end_cap()) | 
 |     { | 
 |         if (__p == this->__end_) | 
 |         { | 
 |             __construct_one_at_end(__x); | 
 |         } | 
 |         else | 
 |         { | 
 |             __move_range(__p, this->__end_, __p + 1); | 
 |             const_pointer __xr = pointer_traits<const_pointer>::pointer_to(__x); | 
 |             if (__p <= __xr && __xr < this->__end_) | 
 |                 ++__xr; | 
 |             *__p = *__xr; | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 |         allocator_type& __a = this->__alloc(); | 
 |         __split_buffer<value_type, allocator_type&> __v(__recommend(size() + 1), __p - this->__begin_, __a); | 
 |         __v.push_back(__x); | 
 |         __p = __swap_out_circular_buffer(__v, __p); | 
 |     } | 
 |     return __make_iter(__p); | 
 | } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::insert(const_iterator __position, value_type&& __x) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::insert(iterator, x) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     pointer __p = this->__begin_ + (__position - begin()); | 
 |     if (this->__end_ < this->__end_cap()) | 
 |     { | 
 |         if (__p == this->__end_) | 
 |         { | 
 |             __construct_one_at_end(_VSTD::move(__x)); | 
 |         } | 
 |         else | 
 |         { | 
 |             __move_range(__p, this->__end_, __p + 1); | 
 |             *__p = _VSTD::move(__x); | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 |         allocator_type& __a = this->__alloc(); | 
 |         __split_buffer<value_type, allocator_type&> __v(__recommend(size() + 1), __p - this->__begin_, __a); | 
 |         __v.push_back(_VSTD::move(__x)); | 
 |         __p = __swap_out_circular_buffer(__v, __p); | 
 |     } | 
 |     return __make_iter(__p); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class... _Args> | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::emplace(const_iterator __position, _Args&&... __args) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::emplace(iterator, x) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     pointer __p = this->__begin_ + (__position - begin()); | 
 |     if (this->__end_ < this->__end_cap()) | 
 |     { | 
 |         if (__p == this->__end_) | 
 |         { | 
 |             __construct_one_at_end(_VSTD::forward<_Args>(__args)...); | 
 |         } | 
 |         else | 
 |         { | 
 |             __temp_value<value_type, _Allocator> __tmp(this->__alloc(), _VSTD::forward<_Args>(__args)...); | 
 |             __move_range(__p, this->__end_, __p + 1); | 
 |             *__p = _VSTD::move(__tmp.get()); | 
 |         } | 
 |     } | 
 |     else | 
 |     { | 
 |         allocator_type& __a = this->__alloc(); | 
 |         __split_buffer<value_type, allocator_type&> __v(__recommend(size() + 1), __p - this->__begin_, __a); | 
 |         __v.emplace_back(_VSTD::forward<_Args>(__args)...); | 
 |         __p = __swap_out_circular_buffer(__v, __p); | 
 |     } | 
 |     return __make_iter(__p); | 
 | } | 
 |  | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | typename vector<_Tp, _Allocator>::iterator | 
 | vector<_Tp, _Allocator>::insert(const_iterator __position, size_type __n, const_reference __x) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::insert(iterator, n, x) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     pointer __p = this->__begin_ + (__position - begin()); | 
 |     if (__n > 0) | 
 |     { | 
 |         if (__n <= static_cast<size_type>(this->__end_cap() - this->__end_)) | 
 |         { | 
 |             size_type __old_n = __n; | 
 |             pointer __old_last = this->__end_; | 
 |             if (__n > static_cast<size_type>(this->__end_ - __p)) | 
 |             { | 
 |                 size_type __cx = __n - (this->__end_ - __p); | 
 |                 __construct_at_end(__cx, __x); | 
 |                 __n -= __cx; | 
 |             } | 
 |             if (__n > 0) | 
 |             { | 
 |                 __move_range(__p, __old_last, __p + __old_n); | 
 |                 const_pointer __xr = pointer_traits<const_pointer>::pointer_to(__x); | 
 |                 if (__p <= __xr && __xr < this->__end_) | 
 |                     __xr += __old_n; | 
 |                 _VSTD::fill_n(__p, __n, *__xr); | 
 |             } | 
 |         } | 
 |         else | 
 |         { | 
 |             allocator_type& __a = this->__alloc(); | 
 |             __split_buffer<value_type, allocator_type&> __v(__recommend(size() + __n), __p - this->__begin_, __a); | 
 |             __v.__construct_at_end(__n, __x); | 
 |             __p = __swap_out_circular_buffer(__v, __p); | 
 |         } | 
 |     } | 
 |     return __make_iter(__p); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _InputIterator> | 
 | typename enable_if | 
 | < | 
 |      __is_cpp17_input_iterator  <_InputIterator>::value && | 
 |     !__is_cpp17_forward_iterator<_InputIterator>::value && | 
 |     is_constructible< | 
 |        _Tp, | 
 |        typename iterator_traits<_InputIterator>::reference>::value, | 
 |     typename vector<_Tp, _Allocator>::iterator | 
 | >::type | 
 | vector<_Tp, _Allocator>::insert(const_iterator __position, _InputIterator __first, _InputIterator __last) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::insert(iterator, range) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     difference_type __off = __position - begin(); | 
 |     pointer __p = this->__begin_ + __off; | 
 |     allocator_type& __a = this->__alloc(); | 
 |     pointer __old_last = this->__end_; | 
 |     for (; this->__end_ != this->__end_cap() && __first != __last; ++__first) | 
 |     { | 
 |         __construct_one_at_end(*__first); | 
 |     } | 
 |     __split_buffer<value_type, allocator_type&> __v(__a); | 
 |     if (__first != __last) | 
 |     { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         try | 
 |         { | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |             __v.__construct_at_end(__first, __last); | 
 |             difference_type __old_size = __old_last - this->__begin_; | 
 |             difference_type __old_p = __p - this->__begin_; | 
 |             reserve(__recommend(size() + __v.size())); | 
 |             __p = this->__begin_ + __old_p; | 
 |             __old_last = this->__begin_ + __old_size; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         } | 
 |         catch (...) | 
 |         { | 
 |             erase(__make_iter(__old_last), end()); | 
 |             throw; | 
 |         } | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     __p = _VSTD::rotate(__p, __old_last, this->__end_); | 
 |     insert(__make_iter(__p), _VSTD::make_move_iterator(__v.begin()), | 
 |                              _VSTD::make_move_iterator(__v.end())); | 
 |     return begin() + __off; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | template <class _ForwardIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_forward_iterator<_ForwardIterator>::value && | 
 |     is_constructible< | 
 |        _Tp, | 
 |        typename iterator_traits<_ForwardIterator>::reference>::value, | 
 |     typename vector<_Tp, _Allocator>::iterator | 
 | >::type | 
 | vector<_Tp, _Allocator>::insert(const_iterator __position, _ForwardIterator __first, _ForwardIterator __last) | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, | 
 |         "vector::insert(iterator, range) called with an iterator not" | 
 |         " referring to this vector"); | 
 | #endif | 
 |     pointer __p = this->__begin_ + (__position - begin()); | 
 |     difference_type __n = _VSTD::distance(__first, __last); | 
 |     if (__n > 0) | 
 |     { | 
 |         if (__n <= this->__end_cap() - this->__end_) | 
 |         { | 
 |             size_type __old_n = __n; | 
 |             pointer __old_last = this->__end_; | 
 |             _ForwardIterator __m = __last; | 
 |             difference_type __dx = this->__end_ - __p; | 
 |             if (__n > __dx) | 
 |             { | 
 |                 __m = __first; | 
 |                 difference_type __diff = this->__end_ - __p; | 
 |                 _VSTD::advance(__m, __diff); | 
 |                 __construct_at_end(__m, __last, __n - __diff); | 
 |                 __n = __dx; | 
 |             } | 
 |             if (__n > 0) | 
 |             { | 
 |                 __move_range(__p, __old_last, __p + __old_n); | 
 |                 _VSTD::copy(__first, __m, __p); | 
 |             } | 
 |         } | 
 |         else | 
 |         { | 
 |             allocator_type& __a = this->__alloc(); | 
 |             __split_buffer<value_type, allocator_type&> __v(__recommend(size() + __n), __p - this->__begin_, __a); | 
 |             __v.__construct_at_end(__first, __last); | 
 |             __p = __swap_out_circular_buffer(__v, __p); | 
 |         } | 
 |     } | 
 |     return __make_iter(__p); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::resize(size_type __sz) | 
 | { | 
 |     size_type __cs = size(); | 
 |     if (__cs < __sz) | 
 |         this->__append(__sz - __cs); | 
 |     else if (__cs > __sz) | 
 |         this->__destruct_at_end(this->__begin_ + __sz); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::resize(size_type __sz, const_reference __x) | 
 | { | 
 |     size_type __cs = size(); | 
 |     if (__cs < __sz) | 
 |         this->__append(__sz - __cs, __x); | 
 |     else if (__cs > __sz) | 
 |         this->__destruct_at_end(this->__begin_ + __sz); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | void | 
 | vector<_Tp, _Allocator>::swap(vector& __x) | 
 | #if _LIBCPP_STD_VER >= 14 | 
 |     _NOEXCEPT | 
 | #else | 
 |     _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || | 
 |                 __is_nothrow_swappable<allocator_type>::value) | 
 | #endif | 
 | { | 
 |     _LIBCPP_ASSERT(__alloc_traits::propagate_on_container_swap::value || | 
 |                    this->__alloc() == __x.__alloc(), | 
 |                    "vector::swap: Either propagate_on_container_swap must be true" | 
 |                    " or the allocators must compare equal"); | 
 |     _VSTD::swap(this->__begin_, __x.__begin_); | 
 |     _VSTD::swap(this->__end_, __x.__end_); | 
 |     _VSTD::swap(this->__end_cap(), __x.__end_cap()); | 
 |     _VSTD::__swap_allocator(this->__alloc(), __x.__alloc(), | 
 |         integral_constant<bool,__alloc_traits::propagate_on_container_swap::value>()); | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->swap(this, &__x); | 
 | #endif | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | bool | 
 | vector<_Tp, _Allocator>::__invariants() const | 
 | { | 
 |     if (this->__begin_ == nullptr) | 
 |     { | 
 |         if (this->__end_ != nullptr || this->__end_cap() != nullptr) | 
 |             return false; | 
 |     } | 
 |     else | 
 |     { | 
 |         if (this->__begin_ > this->__end_) | 
 |             return false; | 
 |         if (this->__begin_ == this->__end_cap()) | 
 |             return false; | 
 |         if (this->__end_ > this->__end_cap()) | 
 |             return false; | 
 |     } | 
 |     return true; | 
 | } | 
 |  | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | bool | 
 | vector<_Tp, _Allocator>::__dereferenceable(const const_iterator* __i) const | 
 | { | 
 |     return this->__begin_ <= __i->base() && __i->base() < this->__end_; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | bool | 
 | vector<_Tp, _Allocator>::__decrementable(const const_iterator* __i) const | 
 | { | 
 |     return this->__begin_ < __i->base() && __i->base() <= this->__end_; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | bool | 
 | vector<_Tp, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const | 
 | { | 
 |     const_pointer __p = __i->base() + __n; | 
 |     return this->__begin_ <= __p && __p <= this->__end_; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | bool | 
 | vector<_Tp, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const | 
 | { | 
 |     const_pointer __p = __i->base() + __n; | 
 |     return this->__begin_ <= __p && __p < this->__end_; | 
 | } | 
 |  | 
 | #endif // _LIBCPP_DEBUG_LEVEL == 2 | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | vector<_Tp, _Allocator>::__invalidate_all_iterators() | 
 | { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |     __get_db()->__invalidate_all(this); | 
 | #endif | 
 | } | 
 |  | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | vector<_Tp, _Allocator>::__invalidate_iterators_past(pointer __new_last) { | 
 | #if _LIBCPP_DEBUG_LEVEL == 2 | 
 |   __c_node* __c = __get_db()->__find_c_and_lock(this); | 
 |   for (__i_node** __p = __c->end_; __p != __c->beg_; ) { | 
 |     --__p; | 
 |     const_iterator* __i = static_cast<const_iterator*>((*__p)->__i_); | 
 |     if (__i->base() > __new_last) { | 
 |       (*__p)->__c_ = nullptr; | 
 |       if (--__c->end_ != __p) | 
 |         _VSTD::memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*)); | 
 |     } | 
 |   } | 
 |   __get_db()->unlock(); | 
 | #else | 
 |   ((void)__new_last); | 
 | #endif | 
 | } | 
 |  | 
 | // vector<bool> | 
 |  | 
 | template <class _Allocator> class vector<bool, _Allocator>; | 
 |  | 
 | template <class _Allocator> struct hash<vector<bool, _Allocator> >; | 
 |  | 
 | template <class _Allocator> | 
 | struct __has_storage_type<vector<bool, _Allocator> > | 
 | { | 
 |     static const bool value = true; | 
 | }; | 
 |  | 
 | template <class _Allocator> | 
 | class _LIBCPP_TEMPLATE_VIS vector<bool, _Allocator> | 
 |     : private __vector_base_common<true> | 
 | { | 
 | public: | 
 |     typedef vector                                   __self; | 
 |     typedef bool                                     value_type; | 
 |     typedef _Allocator                               allocator_type; | 
 |     typedef allocator_traits<allocator_type>         __alloc_traits; | 
 |     typedef typename __alloc_traits::size_type       size_type; | 
 |     typedef typename __alloc_traits::difference_type difference_type; | 
 |     typedef size_type __storage_type; | 
 |     typedef __bit_iterator<vector, false>            pointer; | 
 |     typedef __bit_iterator<vector, true>             const_pointer; | 
 |     typedef pointer                                  iterator; | 
 |     typedef const_pointer                            const_iterator; | 
 |     typedef _VSTD::reverse_iterator<iterator>         reverse_iterator; | 
 |     typedef _VSTD::reverse_iterator<const_iterator>   const_reverse_iterator; | 
 |  | 
 | private: | 
 |     typedef typename __rebind_alloc_helper<__alloc_traits, __storage_type>::type __storage_allocator; | 
 |     typedef allocator_traits<__storage_allocator>    __storage_traits; | 
 |     typedef typename __storage_traits::pointer       __storage_pointer; | 
 |     typedef typename __storage_traits::const_pointer __const_storage_pointer; | 
 |  | 
 |     __storage_pointer                                      __begin_; | 
 |     size_type                                              __size_; | 
 |     __compressed_pair<size_type, __storage_allocator> __cap_alloc_; | 
 | public: | 
 |     typedef __bit_reference<vector>                  reference; | 
 |     typedef __bit_const_reference<vector>            const_reference; | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type& __cap() _NOEXCEPT | 
 |         {return __cap_alloc_.first();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const size_type& __cap() const _NOEXCEPT | 
 |         {return __cap_alloc_.first();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     __storage_allocator& __alloc() _NOEXCEPT | 
 |         {return __cap_alloc_.second();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const __storage_allocator& __alloc() const _NOEXCEPT | 
 |         {return __cap_alloc_.second();} | 
 |  | 
 |     static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     static size_type __internal_cap_to_external(size_type __n) _NOEXCEPT | 
 |         {return __n * __bits_per_word;} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     static size_type __external_cap_to_internal(size_type __n) _NOEXCEPT | 
 |         {return (__n - 1) / __bits_per_word + 1;} | 
 |  | 
 | public: | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector() _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY explicit vector(const allocator_type& __a) | 
 | #if _LIBCPP_STD_VER <= 14 | 
 |         _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value); | 
 | #else | 
 |         _NOEXCEPT; | 
 | #endif | 
 |     ~vector(); | 
 |     explicit vector(size_type __n); | 
 | #if _LIBCPP_STD_VER > 11 | 
 |     explicit vector(size_type __n, const allocator_type& __a); | 
 | #endif | 
 |     vector(size_type __n, const value_type& __v); | 
 |     vector(size_type __n, const value_type& __v, const allocator_type& __a); | 
 |     template <class _InputIterator> | 
 |         vector(_InputIterator __first, _InputIterator __last, | 
 |                typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                                  !__is_cpp17_forward_iterator<_InputIterator>::value>::type* = 0); | 
 |     template <class _InputIterator> | 
 |         vector(_InputIterator __first, _InputIterator __last, const allocator_type& __a, | 
 |                typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                                  !__is_cpp17_forward_iterator<_InputIterator>::value>::type* = 0); | 
 |     template <class _ForwardIterator> | 
 |         vector(_ForwardIterator __first, _ForwardIterator __last, | 
 |                typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value>::type* = 0); | 
 |     template <class _ForwardIterator> | 
 |         vector(_ForwardIterator __first, _ForwardIterator __last, const allocator_type& __a, | 
 |                typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value>::type* = 0); | 
 |  | 
 |     vector(const vector& __v); | 
 |     vector(const vector& __v, const allocator_type& __a); | 
 |     vector& operator=(const vector& __v); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     vector(initializer_list<value_type> __il); | 
 |     vector(initializer_list<value_type> __il, const allocator_type& __a); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector(vector&& __v) | 
 | #if _LIBCPP_STD_VER > 14 | 
 |         _NOEXCEPT; | 
 | #else | 
 |         _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value); | 
 | #endif | 
 |     vector(vector&& __v, const __identity_t<allocator_type>& __a); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector& operator=(vector&& __v) | 
 |         _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     vector& operator=(initializer_list<value_type> __il) | 
 |         {assign(__il.begin(), __il.end()); return *this;} | 
 |  | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 |     template <class _InputIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_input_iterator<_InputIterator>::value && | 
 |            !__is_cpp17_forward_iterator<_InputIterator>::value, | 
 |            void | 
 |         >::type | 
 |         assign(_InputIterator __first, _InputIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |            void | 
 |         >::type | 
 |         assign(_ForwardIterator __first, _ForwardIterator __last); | 
 |  | 
 |     void assign(size_type __n, const value_type& __x); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void assign(initializer_list<value_type> __il) | 
 |         {assign(__il.begin(), __il.end());} | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY allocator_type get_allocator() const _NOEXCEPT | 
 |         {return allocator_type(this->__alloc());} | 
 |  | 
 |     size_type max_size() const _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type capacity() const _NOEXCEPT | 
 |         {return __internal_cap_to_external(__cap());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_type size() const _NOEXCEPT | 
 |         {return __size_;} | 
 |     _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY | 
 |     bool empty() const _NOEXCEPT | 
 |         {return __size_ == 0;} | 
 |     void reserve(size_type __n); | 
 |     void shrink_to_fit() _NOEXCEPT; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator begin() _NOEXCEPT | 
 |         {return __make_iter(0);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator begin() const _NOEXCEPT | 
 |         {return __make_iter(0);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator end() _NOEXCEPT | 
 |         {return __make_iter(__size_);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator end()   const _NOEXCEPT | 
 |         {return __make_iter(__size_);} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     reverse_iterator rbegin() _NOEXCEPT | 
 |         {return       reverse_iterator(end());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator rbegin() const _NOEXCEPT | 
 |         {return const_reverse_iterator(end());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     reverse_iterator rend() _NOEXCEPT | 
 |         {return       reverse_iterator(begin());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator rend()   const _NOEXCEPT | 
 |         {return const_reverse_iterator(begin());} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator         cbegin()  const _NOEXCEPT | 
 |         {return __make_iter(0);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator         cend()    const _NOEXCEPT | 
 |         {return __make_iter(__size_);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator crbegin() const _NOEXCEPT | 
 |         {return rbegin();} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reverse_iterator crend()   const _NOEXCEPT | 
 |         {return rend();} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY reference       operator[](size_type __n)       {return __make_ref(__n);} | 
 |     _LIBCPP_INLINE_VISIBILITY const_reference operator[](size_type __n) const {return __make_ref(__n);} | 
 |     reference       at(size_type __n); | 
 |     const_reference at(size_type __n) const; | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY reference       front()       {return __make_ref(0);} | 
 |     _LIBCPP_INLINE_VISIBILITY const_reference front() const {return __make_ref(0);} | 
 |     _LIBCPP_INLINE_VISIBILITY reference       back()        {return __make_ref(__size_ - 1);} | 
 |     _LIBCPP_INLINE_VISIBILITY const_reference back()  const {return __make_ref(__size_ - 1);} | 
 |  | 
 |     void push_back(const value_type& __x); | 
 | #if _LIBCPP_STD_VER > 11 | 
 |     template <class... _Args> | 
 | #if _LIBCPP_STD_VER > 14 | 
 |     _LIBCPP_INLINE_VISIBILITY reference emplace_back(_Args&&... __args) | 
 | #else | 
 |     _LIBCPP_INLINE_VISIBILITY void      emplace_back(_Args&&... __args) | 
 | #endif | 
 |     { | 
 |         push_back ( value_type ( _VSTD::forward<_Args>(__args)... )); | 
 | #if _LIBCPP_STD_VER > 14 | 
 |         return this->back(); | 
 | #endif | 
 |     } | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY void pop_back() {--__size_;} | 
 |  | 
 | #if _LIBCPP_STD_VER > 11 | 
 |     template <class... _Args> | 
 |    _LIBCPP_INLINE_VISIBILITY iterator emplace(const_iterator position, _Args&&... __args) | 
 |         { return insert ( position, value_type ( _VSTD::forward<_Args>(__args)... )); } | 
 | #endif | 
 |  | 
 |     iterator insert(const_iterator __position, const value_type& __x); | 
 |     iterator insert(const_iterator __position, size_type __n, const value_type& __x); | 
 |     iterator insert(const_iterator __position, size_type __n, const_reference __x); | 
 |     template <class _InputIterator> | 
 |         typename enable_if | 
 |         < | 
 |              __is_cpp17_input_iterator  <_InputIterator>::value && | 
 |             !__is_cpp17_forward_iterator<_InputIterator>::value, | 
 |             iterator | 
 |         >::type | 
 |         insert(const_iterator __position, _InputIterator __first, _InputIterator __last); | 
 |     template <class _ForwardIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |             iterator | 
 |         >::type | 
 |         insert(const_iterator __position, _ForwardIterator __first, _ForwardIterator __last); | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator insert(const_iterator __position, initializer_list<value_type> __il) | 
 |         {return insert(__position, __il.begin(), __il.end());} | 
 | #endif | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY iterator erase(const_iterator __position); | 
 |     iterator erase(const_iterator __first, const_iterator __last); | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void clear() _NOEXCEPT {__size_ = 0;} | 
 |  | 
 |     void swap(vector&) | 
 | #if _LIBCPP_STD_VER >= 14 | 
 |         _NOEXCEPT; | 
 | #else | 
 |         _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || | 
 |                     __is_nothrow_swappable<allocator_type>::value); | 
 | #endif | 
 |     static void swap(reference __x, reference __y) _NOEXCEPT { _VSTD::swap(__x, __y); } | 
 |  | 
 |     void resize(size_type __sz, value_type __x = false); | 
 |     void flip() _NOEXCEPT; | 
 |  | 
 |     bool __invariants() const; | 
 |  | 
 | private: | 
 |     _LIBCPP_INLINE_VISIBILITY void __invalidate_all_iterators(); | 
 |     void __vallocate(size_type __n); | 
 |     void __vdeallocate() _NOEXCEPT; | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     static size_type __align_it(size_type __new_size) _NOEXCEPT | 
 |         {return __new_size + (__bits_per_word-1) & ~((size_type)__bits_per_word-1);} | 
 |     _LIBCPP_INLINE_VISIBILITY  size_type __recommend(size_type __new_size) const; | 
 |     _LIBCPP_INLINE_VISIBILITY void __construct_at_end(size_type __n, bool __x); | 
 |     template <class _ForwardIterator> | 
 |         typename enable_if | 
 |         < | 
 |             __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |             void | 
 |         >::type | 
 |         __construct_at_end(_ForwardIterator __first, _ForwardIterator __last); | 
 |     void __append(size_type __n, const_reference __x); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     reference __make_ref(size_type __pos) _NOEXCEPT | 
 |         {return reference(__begin_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_reference __make_ref(size_type __pos) const _NOEXCEPT | 
 |         {return const_reference(__begin_ + __pos / __bits_per_word, __storage_type(1) << __pos % __bits_per_word);} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator __make_iter(size_type __pos) _NOEXCEPT | 
 |         {return iterator(__begin_ + __pos / __bits_per_word, static_cast<unsigned>(__pos % __bits_per_word));} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     const_iterator __make_iter(size_type __pos) const _NOEXCEPT | 
 |         {return const_iterator(__begin_ + __pos / __bits_per_word, static_cast<unsigned>(__pos % __bits_per_word));} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     iterator __const_iterator_cast(const_iterator __p) _NOEXCEPT | 
 |         {return begin() + (__p - cbegin());} | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __copy_assign_alloc(const vector& __v) | 
 |         {__copy_assign_alloc(__v, integral_constant<bool, | 
 |                       __storage_traits::propagate_on_container_copy_assignment::value>());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __copy_assign_alloc(const vector& __c, true_type) | 
 |         { | 
 |             if (__alloc() != __c.__alloc()) | 
 |                 __vdeallocate(); | 
 |             __alloc() = __c.__alloc(); | 
 |         } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __copy_assign_alloc(const vector&, false_type) | 
 |         {} | 
 |  | 
 |     void __move_assign(vector& __c, false_type); | 
 |     void __move_assign(vector& __c, true_type) | 
 |         _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value); | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __move_assign_alloc(vector& __c) | 
 |         _NOEXCEPT_( | 
 |             !__storage_traits::propagate_on_container_move_assignment::value || | 
 |             is_nothrow_move_assignable<allocator_type>::value) | 
 |         {__move_assign_alloc(__c, integral_constant<bool, | 
 |                       __storage_traits::propagate_on_container_move_assignment::value>());} | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __move_assign_alloc(vector& __c, true_type) | 
 |         _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) | 
 |         { | 
 |             __alloc() = _VSTD::move(__c.__alloc()); | 
 |         } | 
 |  | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     void __move_assign_alloc(vector&, false_type) | 
 |         _NOEXCEPT | 
 |         {} | 
 |  | 
 |     size_t __hash_code() const _NOEXCEPT; | 
 |  | 
 |     friend class __bit_reference<vector>; | 
 |     friend class __bit_const_reference<vector>; | 
 |     friend class __bit_iterator<vector, false>; | 
 |     friend class __bit_iterator<vector, true>; | 
 |     friend struct __bit_array<vector>; | 
 |     friend struct _LIBCPP_TEMPLATE_VIS hash<vector>; | 
 | }; | 
 |  | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | vector<bool, _Allocator>::__invalidate_all_iterators() | 
 | { | 
 | } | 
 |  | 
 | //  Allocate space for __n objects | 
 | //  throws length_error if __n > max_size() | 
 | //  throws (probably bad_alloc) if memory run out | 
 | //  Precondition:  __begin_ == __end_ == __cap() == 0 | 
 | //  Precondition:  __n > 0 | 
 | //  Postcondition:  capacity() == __n | 
 | //  Postcondition:  size() == 0 | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::__vallocate(size_type __n) | 
 | { | 
 |     if (__n > max_size()) | 
 |         this->__throw_length_error(); | 
 |     __n = __external_cap_to_internal(__n); | 
 |     this->__begin_ = __storage_traits::allocate(this->__alloc(), __n); | 
 |     this->__size_ = 0; | 
 |     this->__cap() = __n; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::__vdeallocate() _NOEXCEPT | 
 | { | 
 |     if (this->__begin_ != nullptr) | 
 |     { | 
 |         __storage_traits::deallocate(this->__alloc(), this->__begin_, __cap()); | 
 |         __invalidate_all_iterators(); | 
 |         this->__begin_ = nullptr; | 
 |         this->__size_ = this->__cap() = 0; | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | typename vector<bool, _Allocator>::size_type | 
 | vector<bool, _Allocator>::max_size() const _NOEXCEPT | 
 | { | 
 |     size_type __amax = __storage_traits::max_size(__alloc()); | 
 |     size_type __nmax = numeric_limits<size_type>::max() / 2;  // end() >= begin(), always | 
 |     if (__nmax / __bits_per_word <= __amax) | 
 |         return __nmax; | 
 |     return __internal_cap_to_external(__amax); | 
 | } | 
 |  | 
 | //  Precondition:  __new_size > capacity() | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<bool, _Allocator>::size_type | 
 | vector<bool, _Allocator>::__recommend(size_type __new_size) const | 
 | { | 
 |     const size_type __ms = max_size(); | 
 |     if (__new_size > __ms) | 
 |         this->__throw_length_error(); | 
 |     const size_type __cap = capacity(); | 
 |     if (__cap >= __ms / 2) | 
 |         return __ms; | 
 |     return _VSTD::max(2 * __cap, __align_it(__new_size)); | 
 | } | 
 |  | 
 | //  Default constructs __n objects starting at __end_ | 
 | //  Precondition:  __n > 0 | 
 | //  Precondition:  size() + __n <= capacity() | 
 | //  Postcondition:  size() == size() + __n | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | vector<bool, _Allocator>::__construct_at_end(size_type __n, bool __x) | 
 | { | 
 |     size_type __old_size = this->__size_; | 
 |     this->__size_ += __n; | 
 |     if (__old_size == 0 || ((__old_size - 1) / __bits_per_word) != ((this->__size_ - 1) / __bits_per_word)) | 
 |     { | 
 |         if (this->__size_ <= __bits_per_word) | 
 |             this->__begin_[0] = __storage_type(0); | 
 |         else | 
 |             this->__begin_[(this->__size_ - 1) / __bits_per_word] = __storage_type(0); | 
 |     } | 
 |     _VSTD::fill_n(__make_iter(__old_size), __n, __x); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _ForwardIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |     void | 
 | >::type | 
 | vector<bool, _Allocator>::__construct_at_end(_ForwardIterator __first, _ForwardIterator __last) | 
 | { | 
 |     size_type __old_size = this->__size_; | 
 |     this->__size_ += _VSTD::distance(__first, __last); | 
 |     if (__old_size == 0 || ((__old_size - 1) / __bits_per_word) != ((this->__size_ - 1) / __bits_per_word)) | 
 |     { | 
 |         if (this->__size_ <= __bits_per_word) | 
 |             this->__begin_[0] = __storage_type(0); | 
 |         else | 
 |             this->__begin_[(this->__size_ - 1) / __bits_per_word] = __storage_type(0); | 
 |     } | 
 |     _VSTD::copy(__first, __last, __make_iter(__old_size)); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<bool, _Allocator>::vector() | 
 |     _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __default_init_tag()) | 
 | { | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<bool, _Allocator>::vector(const allocator_type& __a) | 
 | #if _LIBCPP_STD_VER <= 14 | 
 |         _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value) | 
 | #else | 
 |         _NOEXCEPT | 
 | #endif | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, static_cast<__storage_allocator>(__a)) | 
 | { | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(size_type __n) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __default_init_tag()) | 
 | { | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n, false); | 
 |     } | 
 | } | 
 |  | 
 | #if _LIBCPP_STD_VER > 11 | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(size_type __n, const allocator_type& __a) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, static_cast<__storage_allocator>(__a)) | 
 | { | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n, false); | 
 |     } | 
 | } | 
 | #endif | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(size_type __n, const value_type& __x) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __default_init_tag()) | 
 | { | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n, __x); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(size_type __n, const value_type& __x, const allocator_type& __a) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, static_cast<__storage_allocator>(__a)) | 
 | { | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__n, __x); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _InputIterator> | 
 | vector<bool, _Allocator>::vector(_InputIterator __first, _InputIterator __last, | 
 |        typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                          !__is_cpp17_forward_iterator<_InputIterator>::value>::type*) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __default_init_tag()) | 
 | { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     try | 
 |     { | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |         for (; __first != __last; ++__first) | 
 |             push_back(*__first); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     catch (...) | 
 |     { | 
 |         if (__begin_ != nullptr) | 
 |             __storage_traits::deallocate(__alloc(), __begin_, __cap()); | 
 |         __invalidate_all_iterators(); | 
 |         throw; | 
 |     } | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _InputIterator> | 
 | vector<bool, _Allocator>::vector(_InputIterator __first, _InputIterator __last, const allocator_type& __a, | 
 |        typename enable_if<__is_cpp17_input_iterator  <_InputIterator>::value && | 
 |                          !__is_cpp17_forward_iterator<_InputIterator>::value>::type*) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, static_cast<__storage_allocator>(__a)) | 
 | { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     try | 
 |     { | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |         for (; __first != __last; ++__first) | 
 |             push_back(*__first); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     catch (...) | 
 |     { | 
 |         if (__begin_ != nullptr) | 
 |             __storage_traits::deallocate(__alloc(), __begin_, __cap()); | 
 |         __invalidate_all_iterators(); | 
 |         throw; | 
 |     } | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _ForwardIterator> | 
 | vector<bool, _Allocator>::vector(_ForwardIterator __first, _ForwardIterator __last, | 
 |                                 typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value>::type*) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __default_init_tag()) | 
 | { | 
 |     size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__first, __last); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _ForwardIterator> | 
 | vector<bool, _Allocator>::vector(_ForwardIterator __first, _ForwardIterator __last, const allocator_type& __a, | 
 |                                 typename enable_if<__is_cpp17_forward_iterator<_ForwardIterator>::value>::type*) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, static_cast<__storage_allocator>(__a)) | 
 | { | 
 |     size_type __n = static_cast<size_type>(_VSTD::distance(__first, __last)); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__first, __last); | 
 |     } | 
 | } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(initializer_list<value_type> __il) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __default_init_tag()) | 
 | { | 
 |     size_type __n = static_cast<size_type>(__il.size()); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__il.begin(), __il.end()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(initializer_list<value_type> __il, const allocator_type& __a) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, static_cast<__storage_allocator>(__a)) | 
 | { | 
 |     size_type __n = static_cast<size_type>(__il.size()); | 
 |     if (__n > 0) | 
 |     { | 
 |         __vallocate(__n); | 
 |         __construct_at_end(__il.begin(), __il.end()); | 
 |     } | 
 | } | 
 |  | 
 | #endif // _LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::~vector() | 
 | { | 
 |     if (__begin_ != nullptr) | 
 |         __storage_traits::deallocate(__alloc(), __begin_, __cap()); | 
 |     __invalidate_all_iterators(); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(const vector& __v) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __storage_traits::select_on_container_copy_construction(__v.__alloc())) | 
 | { | 
 |     if (__v.size() > 0) | 
 |     { | 
 |         __vallocate(__v.size()); | 
 |         __construct_at_end(__v.begin(), __v.end()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(const vector& __v, const allocator_type& __a) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __a) | 
 | { | 
 |     if (__v.size() > 0) | 
 |     { | 
 |         __vallocate(__v.size()); | 
 |         __construct_at_end(__v.begin(), __v.end()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>& | 
 | vector<bool, _Allocator>::operator=(const vector& __v) | 
 | { | 
 |     if (this != &__v) | 
 |     { | 
 |         __copy_assign_alloc(__v); | 
 |         if (__v.__size_) | 
 |         { | 
 |             if (__v.__size_ > capacity()) | 
 |             { | 
 |                 __vdeallocate(); | 
 |                 __vallocate(__v.__size_); | 
 |             } | 
 |             _VSTD::copy(__v.__begin_, __v.__begin_ + __external_cap_to_internal(__v.__size_), __begin_); | 
 |         } | 
 |         __size_ = __v.__size_; | 
 |     } | 
 |     return *this; | 
 | } | 
 |  | 
 | #ifndef _LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY vector<bool, _Allocator>::vector(vector&& __v) | 
 | #if _LIBCPP_STD_VER > 14 | 
 |     _NOEXCEPT | 
 | #else | 
 |     _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) | 
 | #endif | 
 |     : __begin_(__v.__begin_), | 
 |       __size_(__v.__size_), | 
 |       __cap_alloc_(_VSTD::move(__v.__cap_alloc_)) { | 
 |     __v.__begin_ = nullptr; | 
 |     __v.__size_ = 0; | 
 |     __v.__cap() = 0; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | vector<bool, _Allocator>::vector(vector&& __v, const __identity_t<allocator_type>& __a) | 
 |     : __begin_(nullptr), | 
 |       __size_(0), | 
 |       __cap_alloc_(0, __a) | 
 | { | 
 |     if (__a == allocator_type(__v.__alloc())) | 
 |     { | 
 |         this->__begin_ = __v.__begin_; | 
 |         this->__size_ = __v.__size_; | 
 |         this->__cap() = __v.__cap(); | 
 |         __v.__begin_ = nullptr; | 
 |         __v.__cap() = __v.__size_ = 0; | 
 |     } | 
 |     else if (__v.size() > 0) | 
 |     { | 
 |         __vallocate(__v.size()); | 
 |         __construct_at_end(__v.begin(), __v.end()); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | vector<bool, _Allocator>& | 
 | vector<bool, _Allocator>::operator=(vector&& __v) | 
 |     _NOEXCEPT_((__noexcept_move_assign_container<_Allocator, __alloc_traits>::value)) | 
 | { | 
 |     __move_assign(__v, integral_constant<bool, | 
 |           __storage_traits::propagate_on_container_move_assignment::value>()); | 
 |     return *this; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::__move_assign(vector& __c, false_type) | 
 | { | 
 |     if (__alloc() != __c.__alloc()) | 
 |         assign(__c.begin(), __c.end()); | 
 |     else | 
 |         __move_assign(__c, true_type()); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::__move_assign(vector& __c, true_type) | 
 |     _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) | 
 | { | 
 |     __vdeallocate(); | 
 |     __move_assign_alloc(__c); | 
 |     this->__begin_ = __c.__begin_; | 
 |     this->__size_ = __c.__size_; | 
 |     this->__cap() = __c.__cap(); | 
 |     __c.__begin_ = nullptr; | 
 |     __c.__cap() = __c.__size_ = 0; | 
 | } | 
 |  | 
 | #endif // !_LIBCPP_CXX03_LANG | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::assign(size_type __n, const value_type& __x) | 
 | { | 
 |     __size_ = 0; | 
 |     if (__n > 0) | 
 |     { | 
 |         size_type __c = capacity(); | 
 |         if (__n <= __c) | 
 |             __size_ = __n; | 
 |         else | 
 |         { | 
 |             vector __v(__alloc()); | 
 |             __v.reserve(__recommend(__n)); | 
 |             __v.__size_ = __n; | 
 |             swap(__v); | 
 |         } | 
 |         _VSTD::fill_n(begin(), __n, __x); | 
 |     } | 
 |   __invalidate_all_iterators(); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _InputIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_input_iterator<_InputIterator>::value && | 
 |    !__is_cpp17_forward_iterator<_InputIterator>::value, | 
 |    void | 
 | >::type | 
 | vector<bool, _Allocator>::assign(_InputIterator __first, _InputIterator __last) | 
 | { | 
 |     clear(); | 
 |     for (; __first != __last; ++__first) | 
 |         push_back(*__first); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _ForwardIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |    void | 
 | >::type | 
 | vector<bool, _Allocator>::assign(_ForwardIterator __first, _ForwardIterator __last) | 
 | { | 
 |     clear(); | 
 |     difference_type __ns = _VSTD::distance(__first, __last); | 
 |     _LIBCPP_ASSERT(__ns >= 0, "invalid range specified"); | 
 |     const size_t __n = static_cast<size_type>(__ns); | 
 |     if (__n) | 
 |     { | 
 |         if (__n > capacity()) | 
 |         { | 
 |             __vdeallocate(); | 
 |             __vallocate(__n); | 
 |         } | 
 |         __construct_at_end(__first, __last); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::reserve(size_type __n) | 
 | { | 
 |     if (__n > capacity()) | 
 |     { | 
 |         vector __v(this->__alloc()); | 
 |         __v.__vallocate(__n); | 
 |         __v.__construct_at_end(this->begin(), this->end()); | 
 |         swap(__v); | 
 |         __invalidate_all_iterators(); | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::shrink_to_fit() _NOEXCEPT | 
 | { | 
 |     if (__external_cap_to_internal(size()) > __cap()) | 
 |     { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         try | 
 |         { | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |             vector(*this, allocator_type(__alloc())).swap(*this); | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         } | 
 |         catch (...) | 
 |         { | 
 |         } | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | typename vector<bool, _Allocator>::reference | 
 | vector<bool, _Allocator>::at(size_type __n) | 
 | { | 
 |     if (__n >= size()) | 
 |         this->__throw_out_of_range(); | 
 |     return (*this)[__n]; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | typename vector<bool, _Allocator>::const_reference | 
 | vector<bool, _Allocator>::at(size_type __n) const | 
 | { | 
 |     if (__n >= size()) | 
 |         this->__throw_out_of_range(); | 
 |     return (*this)[__n]; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::push_back(const value_type& __x) | 
 | { | 
 |     if (this->__size_ == this->capacity()) | 
 |         reserve(__recommend(this->__size_ + 1)); | 
 |     ++this->__size_; | 
 |     back() = __x; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | typename vector<bool, _Allocator>::iterator | 
 | vector<bool, _Allocator>::insert(const_iterator __position, const value_type& __x) | 
 | { | 
 |     iterator __r; | 
 |     if (size() < capacity()) | 
 |     { | 
 |         const_iterator __old_end = end(); | 
 |         ++__size_; | 
 |         _VSTD::copy_backward(__position, __old_end, end()); | 
 |         __r = __const_iterator_cast(__position); | 
 |     } | 
 |     else | 
 |     { | 
 |         vector __v(__alloc()); | 
 |         __v.reserve(__recommend(__size_ + 1)); | 
 |         __v.__size_ = __size_ + 1; | 
 |         __r = _VSTD::copy(cbegin(), __position, __v.begin()); | 
 |         _VSTD::copy_backward(__position, cend(), __v.end()); | 
 |         swap(__v); | 
 |     } | 
 |     *__r = __x; | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | typename vector<bool, _Allocator>::iterator | 
 | vector<bool, _Allocator>::insert(const_iterator __position, size_type __n, const value_type& __x) | 
 | { | 
 |     iterator __r; | 
 |     size_type __c = capacity(); | 
 |     if (__n <= __c && size() <= __c - __n) | 
 |     { | 
 |         const_iterator __old_end = end(); | 
 |         __size_ += __n; | 
 |         _VSTD::copy_backward(__position, __old_end, end()); | 
 |         __r = __const_iterator_cast(__position); | 
 |     } | 
 |     else | 
 |     { | 
 |         vector __v(__alloc()); | 
 |         __v.reserve(__recommend(__size_ + __n)); | 
 |         __v.__size_ = __size_ + __n; | 
 |         __r = _VSTD::copy(cbegin(), __position, __v.begin()); | 
 |         _VSTD::copy_backward(__position, cend(), __v.end()); | 
 |         swap(__v); | 
 |     } | 
 |     _VSTD::fill_n(__r, __n, __x); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _InputIterator> | 
 | typename enable_if | 
 | < | 
 |      __is_cpp17_input_iterator  <_InputIterator>::value && | 
 |     !__is_cpp17_forward_iterator<_InputIterator>::value, | 
 |     typename vector<bool, _Allocator>::iterator | 
 | >::type | 
 | vector<bool, _Allocator>::insert(const_iterator __position, _InputIterator __first, _InputIterator __last) | 
 | { | 
 |     difference_type __off = __position - begin(); | 
 |     iterator __p = __const_iterator_cast(__position); | 
 |     iterator __old_end = end(); | 
 |     for (; size() != capacity() && __first != __last; ++__first) | 
 |     { | 
 |         ++this->__size_; | 
 |         back() = *__first; | 
 |     } | 
 |     vector __v(__alloc()); | 
 |     if (__first != __last) | 
 |     { | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         try | 
 |         { | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |             __v.assign(__first, __last); | 
 |             difference_type __old_size = static_cast<difference_type>(__old_end - begin()); | 
 |             difference_type __old_p = __p - begin(); | 
 |             reserve(__recommend(size() + __v.size())); | 
 |             __p = begin() + __old_p; | 
 |             __old_end = begin() + __old_size; | 
 | #ifndef _LIBCPP_NO_EXCEPTIONS | 
 |         } | 
 |         catch (...) | 
 |         { | 
 |             erase(__old_end, end()); | 
 |             throw; | 
 |         } | 
 | #endif // _LIBCPP_NO_EXCEPTIONS | 
 |     } | 
 |     __p = _VSTD::rotate(__p, __old_end, end()); | 
 |     insert(__p, __v.begin(), __v.end()); | 
 |     return begin() + __off; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | template <class _ForwardIterator> | 
 | typename enable_if | 
 | < | 
 |     __is_cpp17_forward_iterator<_ForwardIterator>::value, | 
 |     typename vector<bool, _Allocator>::iterator | 
 | >::type | 
 | vector<bool, _Allocator>::insert(const_iterator __position, _ForwardIterator __first, _ForwardIterator __last) | 
 | { | 
 |     const difference_type __n_signed = _VSTD::distance(__first, __last); | 
 |     _LIBCPP_ASSERT(__n_signed >= 0, "invalid range specified"); | 
 |     const size_type __n = static_cast<size_type>(__n_signed); | 
 |     iterator __r; | 
 |     size_type __c = capacity(); | 
 |     if (__n <= __c && size() <= __c - __n) | 
 |     { | 
 |         const_iterator __old_end = end(); | 
 |         __size_ += __n; | 
 |         _VSTD::copy_backward(__position, __old_end, end()); | 
 |         __r = __const_iterator_cast(__position); | 
 |     } | 
 |     else | 
 |     { | 
 |         vector __v(__alloc()); | 
 |         __v.reserve(__recommend(__size_ + __n)); | 
 |         __v.__size_ = __size_ + __n; | 
 |         __r = _VSTD::copy(cbegin(), __position, __v.begin()); | 
 |         _VSTD::copy_backward(__position, cend(), __v.end()); | 
 |         swap(__v); | 
 |     } | 
 |     _VSTD::copy(__first, __last, __r); | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | typename vector<bool, _Allocator>::iterator | 
 | vector<bool, _Allocator>::erase(const_iterator __position) | 
 | { | 
 |     iterator __r = __const_iterator_cast(__position); | 
 |     _VSTD::copy(__position + 1, this->cend(), __r); | 
 |     --__size_; | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | typename vector<bool, _Allocator>::iterator | 
 | vector<bool, _Allocator>::erase(const_iterator __first, const_iterator __last) | 
 | { | 
 |     iterator __r = __const_iterator_cast(__first); | 
 |     difference_type __d = __last - __first; | 
 |     _VSTD::copy(__last, this->cend(), __r); | 
 |     __size_ -= __d; | 
 |     return __r; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::swap(vector& __x) | 
 | #if _LIBCPP_STD_VER >= 14 | 
 |     _NOEXCEPT | 
 | #else | 
 |     _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || | 
 |                 __is_nothrow_swappable<allocator_type>::value) | 
 | #endif | 
 | { | 
 |     _VSTD::swap(this->__begin_, __x.__begin_); | 
 |     _VSTD::swap(this->__size_, __x.__size_); | 
 |     _VSTD::swap(this->__cap(), __x.__cap()); | 
 |     _VSTD::__swap_allocator(this->__alloc(), __x.__alloc(), | 
 |         integral_constant<bool, __alloc_traits::propagate_on_container_swap::value>()); | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::resize(size_type __sz, value_type __x) | 
 | { | 
 |     size_type __cs = size(); | 
 |     if (__cs < __sz) | 
 |     { | 
 |         iterator __r; | 
 |         size_type __c = capacity(); | 
 |         size_type __n = __sz - __cs; | 
 |         if (__n <= __c && __cs <= __c - __n) | 
 |         { | 
 |             __r = end(); | 
 |             __size_ += __n; | 
 |         } | 
 |         else | 
 |         { | 
 |             vector __v(__alloc()); | 
 |             __v.reserve(__recommend(__size_ + __n)); | 
 |             __v.__size_ = __size_ + __n; | 
 |             __r = _VSTD::copy(cbegin(), cend(), __v.begin()); | 
 |             swap(__v); | 
 |         } | 
 |         _VSTD::fill_n(__r, __n, __x); | 
 |     } | 
 |     else | 
 |         __size_ = __sz; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | void | 
 | vector<bool, _Allocator>::flip() _NOEXCEPT | 
 | { | 
 |     // do middle whole words | 
 |     size_type __n = __size_; | 
 |     __storage_pointer __p = __begin_; | 
 |     for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) | 
 |         *__p = ~*__p; | 
 |     // do last partial word | 
 |     if (__n > 0) | 
 |     { | 
 |         __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); | 
 |         __storage_type __b = *__p & __m; | 
 |         *__p &= ~__m; | 
 |         *__p |= ~__b & __m; | 
 |     } | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | bool | 
 | vector<bool, _Allocator>::__invariants() const | 
 | { | 
 |     if (this->__begin_ == nullptr) | 
 |     { | 
 |         if (this->__size_ != 0 || this->__cap() != 0) | 
 |             return false; | 
 |     } | 
 |     else | 
 |     { | 
 |         if (this->__cap() == 0) | 
 |             return false; | 
 |         if (this->__size_ > this->capacity()) | 
 |             return false; | 
 |     } | 
 |     return true; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | size_t | 
 | vector<bool, _Allocator>::__hash_code() const _NOEXCEPT | 
 | { | 
 |     size_t __h = 0; | 
 |     // do middle whole words | 
 |     size_type __n = __size_; | 
 |     __storage_pointer __p = __begin_; | 
 |     for (; __n >= __bits_per_word; ++__p, __n -= __bits_per_word) | 
 |         __h ^= *__p; | 
 |     // do last partial word | 
 |     if (__n > 0) | 
 |     { | 
 |         const __storage_type __m = ~__storage_type(0) >> (__bits_per_word - __n); | 
 |         __h ^= *__p & __m; | 
 |     } | 
 |     return __h; | 
 | } | 
 |  | 
 | template <class _Allocator> | 
 | struct _LIBCPP_TEMPLATE_VIS hash<vector<bool, _Allocator> > | 
 |     : public unary_function<vector<bool, _Allocator>, size_t> | 
 | { | 
 |     _LIBCPP_INLINE_VISIBILITY | 
 |     size_t operator()(const vector<bool, _Allocator>& __vec) const _NOEXCEPT | 
 |         {return __vec.__hash_code();} | 
 | }; | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator==(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) | 
 | { | 
 |     const typename vector<_Tp, _Allocator>::size_type __sz = __x.size(); | 
 |     return __sz == __y.size() && _VSTD::equal(__x.begin(), __x.end(), __y.begin()); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator!=(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) | 
 | { | 
 |     return !(__x == __y); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator< (const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) | 
 | { | 
 |     return _VSTD::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end()); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator> (const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) | 
 | { | 
 |     return __y < __x; | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator>=(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) | 
 | { | 
 |     return !(__x < __y); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | bool | 
 | operator<=(const vector<_Tp, _Allocator>& __x, const vector<_Tp, _Allocator>& __y) | 
 | { | 
 |     return !(__y < __x); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator> | 
 | inline _LIBCPP_INLINE_VISIBILITY | 
 | void | 
 | swap(vector<_Tp, _Allocator>& __x, vector<_Tp, _Allocator>& __y) | 
 |     _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) | 
 | { | 
 |     __x.swap(__y); | 
 | } | 
 |  | 
 | #if _LIBCPP_STD_VER > 17 | 
 | template <class _Tp, class _Allocator, class _Up> | 
 | inline _LIBCPP_INLINE_VISIBILITY typename vector<_Tp, _Allocator>::size_type | 
 | erase(vector<_Tp, _Allocator>& __c, const _Up& __v) { | 
 |   auto __old_size = __c.size(); | 
 |   __c.erase(_VSTD::remove(__c.begin(), __c.end(), __v), __c.end()); | 
 |   return __old_size - __c.size(); | 
 | } | 
 |  | 
 | template <class _Tp, class _Allocator, class _Predicate> | 
 | inline _LIBCPP_INLINE_VISIBILITY typename vector<_Tp, _Allocator>::size_type | 
 | erase_if(vector<_Tp, _Allocator>& __c, _Predicate __pred) { | 
 |   auto __old_size = __c.size(); | 
 |   __c.erase(_VSTD::remove_if(__c.begin(), __c.end(), __pred), __c.end()); | 
 |   return __old_size - __c.size(); | 
 | } | 
 | #endif | 
 |  | 
 | _LIBCPP_END_NAMESPACE_STD | 
 |  | 
 | _LIBCPP_POP_MACROS | 
 |  | 
 | #endif // _LIBCPP_VECTOR |