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Diffstat (limited to 'data/iphoneos-sdk/v1/deque')
| -rwxr-xr-x | data/iphoneos-sdk/v1/deque | 2910 |
1 files changed, 2910 insertions, 0 deletions
diff --git a/data/iphoneos-sdk/v1/deque b/data/iphoneos-sdk/v1/deque new file mode 100755 index 000000000..08cb29540 --- /dev/null +++ b/data/iphoneos-sdk/v1/deque @@ -0,0 +1,2910 @@ +// -*- C++ -*- +//===---------------------------- deque -----------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP_DEQUE +#define _LIBCPP_DEQUE + +/* + deque synopsis + +namespace std +{ + +template <class T, class Allocator = allocator<T> > +class deque +{ +public: + // types: + 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; + + // construct/copy/destroy: + deque() noexcept(is_nothrow_default_constructible<allocator_type>::value); + explicit deque(const allocator_type& a); + explicit deque(size_type n); + explicit deque(size_type n, const allocator_type& a); // C++14 + deque(size_type n, const value_type& v); + deque(size_type n, const value_type& v, const allocator_type& a); + template <class InputIterator> + deque(InputIterator f, InputIterator l); + template <class InputIterator> + deque(InputIterator f, InputIterator l, const allocator_type& a); + deque(const deque& c); + deque(deque&& c) + noexcept(is_nothrow_move_constructible<allocator_type>::value); + deque(initializer_list<value_type> il, const Allocator& a = allocator_type()); + deque(const deque& c, const allocator_type& a); + deque(deque&& c, const allocator_type& a); + ~deque(); + + deque& operator=(const deque& c); + deque& operator=(deque&& c) + noexcept( + allocator_type::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value); + deque& operator=(initializer_list<value_type> il); + + template <class InputIterator> + void assign(InputIterator f, InputIterator l); + void assign(size_type n, const value_type& v); + void assign(initializer_list<value_type> il); + + allocator_type get_allocator() const noexcept; + + // iterators: + + 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; + + // capacity: + size_type size() const noexcept; + size_type max_size() const noexcept; + void resize(size_type n); + void resize(size_type n, const value_type& v); + void shrink_to_fit(); + bool empty() const noexcept; + + // element access: + reference operator[](size_type i); + const_reference operator[](size_type i) const; + reference at(size_type i); + const_reference at(size_type i) const; + reference front(); + const_reference front() const; + reference back(); + const_reference back() const; + + // modifiers: + void push_front(const value_type& v); + void push_front(value_type&& v); + void push_back(const value_type& v); + void push_back(value_type&& v); + template <class... Args> reference emplace_front(Args&&... args); // reference in C++17 + template <class... Args> reference emplace_back(Args&&... args); // reference in C++17 + template <class... Args> iterator emplace(const_iterator p, Args&&... args); + iterator insert(const_iterator p, const value_type& v); + iterator insert(const_iterator p, value_type&& v); + iterator insert(const_iterator p, size_type n, const value_type& v); + template <class InputIterator> + iterator insert(const_iterator p, InputIterator f, InputIterator l); + iterator insert(const_iterator p, initializer_list<value_type> il); + void pop_front(); + void pop_back(); + iterator erase(const_iterator p); + iterator erase(const_iterator f, const_iterator l); + void swap(deque& c) + noexcept(allocator_traits<allocator_type>::is_always_equal::value); // C++17 + void clear() noexcept; +}; + +template <class T, class Allocator> + bool operator==(const deque<T,Allocator>& x, const deque<T,Allocator>& y); +template <class T, class Allocator> + bool operator< (const deque<T,Allocator>& x, const deque<T,Allocator>& y); +template <class T, class Allocator> + bool operator!=(const deque<T,Allocator>& x, const deque<T,Allocator>& y); +template <class T, class Allocator> + bool operator> (const deque<T,Allocator>& x, const deque<T,Allocator>& y); +template <class T, class Allocator> + bool operator>=(const deque<T,Allocator>& x, const deque<T,Allocator>& y); +template <class T, class Allocator> + bool operator<=(const deque<T,Allocator>& x, const deque<T,Allocator>& y); + +// specialized algorithms: +template <class T, class Allocator> + void swap(deque<T,Allocator>& x, deque<T,Allocator>& y) + noexcept(noexcept(x.swap(y))); + +} // std + +*/ + +#include <__config> +#include <__split_buffer> +#include <type_traits> +#include <initializer_list> +#include <iterator> +#include <algorithm> +#include <stdexcept> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_PUSH_MACROS +#include <__undef_macros> + + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <class _Tp, class _Allocator> class __deque_base; +template <class _Tp, class _Allocator = allocator<_Tp> > class _LIBCPP_TEMPLATE_VIS deque; + +template <class _ValueType, class _Pointer, class _Reference, class _MapPointer, + class _DiffType, _DiffType _BlockSize> +class _LIBCPP_TEMPLATE_VIS __deque_iterator; + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type* = 0); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +copy(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy_backward(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type* = 0); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +copy_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type* = 0); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +move(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move_backward(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type* = 0); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +move_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + +template <class _ValueType, class _DiffType> +struct __deque_block_size { + static const _DiffType value = sizeof(_ValueType) < 256 ? 4096 / sizeof(_ValueType) : 16; +}; + +template <class _ValueType, class _Pointer, class _Reference, class _MapPointer, + class _DiffType, _DiffType _BS = +#ifdef _LIBCPP_ABI_INCOMPLETE_TYPES_IN_DEQUE +// Keep template parameter to avoid changing all template declarations thoughout +// this file. + 0 +#else + __deque_block_size<_ValueType, _DiffType>::value +#endif + > +class _LIBCPP_TEMPLATE_VIS __deque_iterator +{ + typedef _MapPointer __map_iterator; +public: + typedef _Pointer pointer; + typedef _DiffType difference_type; +private: + __map_iterator __m_iter_; + pointer __ptr_; + + static const difference_type __block_size; +public: + typedef _ValueType value_type; + typedef random_access_iterator_tag iterator_category; + typedef _Reference reference; + + _LIBCPP_INLINE_VISIBILITY __deque_iterator() _NOEXCEPT +#if _LIBCPP_STD_VER > 11 + : __m_iter_(nullptr), __ptr_(nullptr) +#endif + {} + + template <class _Pp, class _Rp, class _MP> + _LIBCPP_INLINE_VISIBILITY + __deque_iterator(const __deque_iterator<value_type, _Pp, _Rp, _MP, difference_type, _BS>& __it, + typename enable_if<is_convertible<_Pp, pointer>::value>::type* = 0) _NOEXCEPT + : __m_iter_(__it.__m_iter_), __ptr_(__it.__ptr_) {} + + _LIBCPP_INLINE_VISIBILITY reference operator*() const {return *__ptr_;} + _LIBCPP_INLINE_VISIBILITY pointer operator->() const {return __ptr_;} + + _LIBCPP_INLINE_VISIBILITY __deque_iterator& operator++() + { + if (++__ptr_ - *__m_iter_ == __block_size) + { + ++__m_iter_; + __ptr_ = *__m_iter_; + } + return *this; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator operator++(int) + { + __deque_iterator __tmp = *this; + ++(*this); + return __tmp; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator& operator--() + { + if (__ptr_ == *__m_iter_) + { + --__m_iter_; + __ptr_ = *__m_iter_ + __block_size; + } + --__ptr_; + return *this; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator operator--(int) + { + __deque_iterator __tmp = *this; + --(*this); + return __tmp; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator& operator+=(difference_type __n) + { + if (__n != 0) + { + __n += __ptr_ - *__m_iter_; + if (__n > 0) + { + __m_iter_ += __n / __block_size; + __ptr_ = *__m_iter_ + __n % __block_size; + } + else // (__n < 0) + { + difference_type __z = __block_size - 1 - __n; + __m_iter_ -= __z / __block_size; + __ptr_ = *__m_iter_ + (__block_size - 1 - __z % __block_size); + } + } + return *this; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator& operator-=(difference_type __n) + { + return *this += -__n; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator operator+(difference_type __n) const + { + __deque_iterator __t(*this); + __t += __n; + return __t; + } + + _LIBCPP_INLINE_VISIBILITY __deque_iterator operator-(difference_type __n) const + { + __deque_iterator __t(*this); + __t -= __n; + return __t; + } + + _LIBCPP_INLINE_VISIBILITY + friend __deque_iterator operator+(difference_type __n, const __deque_iterator& __it) + {return __it + __n;} + + _LIBCPP_INLINE_VISIBILITY + friend difference_type operator-(const __deque_iterator& __x, const __deque_iterator& __y) + { + if (__x != __y) + return (__x.__m_iter_ - __y.__m_iter_) * __block_size + + (__x.__ptr_ - *__x.__m_iter_) + - (__y.__ptr_ - *__y.__m_iter_); + return 0; + } + + _LIBCPP_INLINE_VISIBILITY reference operator[](difference_type __n) const + {return *(*this + __n);} + + _LIBCPP_INLINE_VISIBILITY friend + bool operator==(const __deque_iterator& __x, const __deque_iterator& __y) + {return __x.__ptr_ == __y.__ptr_;} + + _LIBCPP_INLINE_VISIBILITY friend + bool operator!=(const __deque_iterator& __x, const __deque_iterator& __y) + {return !(__x == __y);} + + _LIBCPP_INLINE_VISIBILITY friend + bool operator<(const __deque_iterator& __x, const __deque_iterator& __y) + {return __x.__m_iter_ < __y.__m_iter_ || + (__x.__m_iter_ == __y.__m_iter_ && __x.__ptr_ < __y.__ptr_);} + + _LIBCPP_INLINE_VISIBILITY friend + bool operator>(const __deque_iterator& __x, const __deque_iterator& __y) + {return __y < __x;} + + _LIBCPP_INLINE_VISIBILITY friend + bool operator<=(const __deque_iterator& __x, const __deque_iterator& __y) + {return !(__y < __x);} + + _LIBCPP_INLINE_VISIBILITY friend + bool operator>=(const __deque_iterator& __x, const __deque_iterator& __y) + {return !(__x < __y);} + +private: + _LIBCPP_INLINE_VISIBILITY __deque_iterator(__map_iterator __m, pointer __p) _NOEXCEPT + : __m_iter_(__m), __ptr_(__p) {} + + template <class _Tp, class _Ap> friend class __deque_base; + template <class _Tp, class _Ap> friend class _LIBCPP_TEMPLATE_VIS deque; + template <class _Vp, class _Pp, class _Rp, class _MP, class _Dp, _Dp> + friend class _LIBCPP_TEMPLATE_VIS __deque_iterator; + + template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + copy(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> + friend + _OutputIterator + copy(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + copy(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + + template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + copy_backward(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> + friend + _OutputIterator + copy_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + copy_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + + template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + move(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> + friend + _OutputIterator + move(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + move(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); + + template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + move_backward(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> + friend + _OutputIterator + move_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r); + + template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> + friend + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> + move_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r); +}; + +template <class _ValueType, class _Pointer, class _Reference, class _MapPointer, + class _DiffType, _DiffType _BlockSize> +const _DiffType __deque_iterator<_ValueType, _Pointer, _Reference, _MapPointer, + _DiffType, _BlockSize>::__block_size = + __deque_block_size<_ValueType, _DiffType>::value; + +// copy + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*) +{ + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::difference_type difference_type; + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::pointer pointer; + const difference_type __block_size = __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::__block_size; + while (__f != __l) + { + pointer __rb = __r.__ptr_; + pointer __re = *__r.__m_iter_ + __block_size; + difference_type __bs = __re - __rb; + difference_type __n = __l - __f; + _RAIter __m = __l; + if (__n > __bs) + { + __n = __bs; + __m = __f + __n; + } + _VSTD::copy(__f, __m, __rb); + __f = __m; + __r += __n; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +copy(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + const difference_type __block_size = __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::__block_size; + difference_type __n = __l - __f; + while (__n > 0) + { + pointer __fb = __f.__ptr_; + pointer __fe = *__f.__m_iter_ + __block_size; + difference_type __bs = __fe - __fb; + if (__bs > __n) + { + __bs = __n; + __fe = __fb + __bs; + } + __r = _VSTD::copy(__fb, __fe, __r); + __n -= __bs; + __f += __bs; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + const difference_type __block_size = __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::__block_size; + difference_type __n = __l - __f; + while (__n > 0) + { + pointer __fb = __f.__ptr_; + pointer __fe = *__f.__m_iter_ + __block_size; + difference_type __bs = __fe - __fb; + if (__bs > __n) + { + __bs = __n; + __fe = __fb + __bs; + } + __r = _VSTD::copy(__fb, __fe, __r); + __n -= __bs; + __f += __bs; + } + return __r; +} + +// copy_backward + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy_backward(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*) +{ + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::difference_type difference_type; + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::pointer pointer; + while (__f != __l) + { + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __rp = _VSTD::prev(__r); + pointer __rb = *__rp.__m_iter_; + pointer __re = __rp.__ptr_ + 1; + difference_type __bs = __re - __rb; + difference_type __n = __l - __f; + _RAIter __m = __f; + if (__n > __bs) + { + __n = __bs; + __m = __l - __n; + } + _VSTD::copy_backward(__m, __l, __re); + __l = __m; + __r -= __n; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +copy_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + difference_type __n = __l - __f; + while (__n > 0) + { + --__l; + pointer __lb = *__l.__m_iter_; + pointer __le = __l.__ptr_ + 1; + difference_type __bs = __le - __lb; + if (__bs > __n) + { + __bs = __n; + __lb = __le - __bs; + } + __r = _VSTD::copy_backward(__lb, __le, __r); + __n -= __bs; + __l -= __bs - 1; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +copy_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + difference_type __n = __l - __f; + while (__n > 0) + { + --__l; + pointer __lb = *__l.__m_iter_; + pointer __le = __l.__ptr_ + 1; + difference_type __bs = __le - __lb; + if (__bs > __n) + { + __bs = __n; + __lb = __le - __bs; + } + __r = _VSTD::copy_backward(__lb, __le, __r); + __n -= __bs; + __l -= __bs - 1; + } + return __r; +} + +// move + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*) +{ + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::difference_type difference_type; + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::pointer pointer; + const difference_type __block_size = __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::__block_size; + while (__f != __l) + { + pointer __rb = __r.__ptr_; + pointer __re = *__r.__m_iter_ + __block_size; + difference_type __bs = __re - __rb; + difference_type __n = __l - __f; + _RAIter __m = __l; + if (__n > __bs) + { + __n = __bs; + __m = __f + __n; + } + _VSTD::move(__f, __m, __rb); + __f = __m; + __r += __n; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +move(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + const difference_type __block_size = __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::__block_size; + difference_type __n = __l - __f; + while (__n > 0) + { + pointer __fb = __f.__ptr_; + pointer __fe = *__f.__m_iter_ + __block_size; + difference_type __bs = __fe - __fb; + if (__bs > __n) + { + __bs = __n; + __fe = __fb + __bs; + } + __r = _VSTD::move(__fb, __fe, __r); + __n -= __bs; + __f += __bs; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + const difference_type __block_size = __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::__block_size; + difference_type __n = __l - __f; + while (__n > 0) + { + pointer __fb = __f.__ptr_; + pointer __fe = *__f.__m_iter_ + __block_size; + difference_type __bs = __fe - __fb; + if (__bs > __n) + { + __bs = __n; + __fe = __fb + __bs; + } + __r = _VSTD::move(__fb, __fe, __r); + __n -= __bs; + __f += __bs; + } + return __r; +} + +// move_backward + +template <class _RAIter, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move_backward(_RAIter __f, + _RAIter __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*) +{ + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::difference_type difference_type; + typedef typename __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2>::pointer pointer; + while (__f != __l) + { + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __rp = _VSTD::prev(__r); + pointer __rb = *__rp.__m_iter_; + pointer __re = __rp.__ptr_ + 1; + difference_type __bs = __re - __rb; + difference_type __n = __l - __f; + _RAIter __m = __f; + if (__n > __bs) + { + __n = __bs; + __m = __l - __n; + } + _VSTD::move_backward(__m, __l, __re); + __l = __m; + __r -= __n; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _OutputIterator> +_OutputIterator +move_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + _OutputIterator __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + difference_type __n = __l - __f; + while (__n > 0) + { + --__l; + pointer __lb = *__l.__m_iter_; + pointer __le = __l.__ptr_ + 1; + difference_type __bs = __le - __lb; + if (__bs > __n) + { + __bs = __n; + __lb = __le - __bs; + } + __r = _VSTD::move_backward(__lb, __le, __r); + __n -= __bs; + __l -= __bs - 1; + } + return __r; +} + +template <class _V1, class _P1, class _R1, class _M1, class _D1, _D1 _B1, + class _V2, class _P2, class _R2, class _M2, class _D2, _D2 _B2> +__deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> +move_backward(__deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __f, + __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1> __l, + __deque_iterator<_V2, _P2, _R2, _M2, _D2, _B2> __r) +{ + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::difference_type difference_type; + typedef typename __deque_iterator<_V1, _P1, _R1, _M1, _D1, _B1>::pointer pointer; + difference_type __n = __l - __f; + while (__n > 0) + { + --__l; + pointer __lb = *__l.__m_iter_; + pointer __le = __l.__ptr_ + 1; + difference_type __bs = __le - __lb; + if (__bs > __n) + { + __bs = __n; + __lb = __le - __bs; + } + __r = _VSTD::move_backward(__lb, __le, __r); + __n -= __bs; + __l -= __bs - 1; + } + return __r; +} + +template <bool> +class __deque_base_common +{ +protected: + _LIBCPP_NORETURN void __throw_length_error() const; + _LIBCPP_NORETURN void __throw_out_of_range() const; +}; + +template <bool __b> +void +__deque_base_common<__b>::__throw_length_error() const +{ + _VSTD::__throw_length_error("deque"); +} + +template <bool __b> +void +__deque_base_common<__b>::__throw_out_of_range() const +{ + _VSTD::__throw_out_of_range("deque"); +} + +template <class _Tp, class _Allocator> +class __deque_base + : protected __deque_base_common<true> +{ + __deque_base(const __deque_base& __c); + __deque_base& operator=(const __deque_base& __c); +protected: + typedef _Tp value_type; + typedef _Allocator allocator_type; + typedef allocator_traits<allocator_type> __alloc_traits; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef typename __alloc_traits::size_type size_type; + typedef typename __alloc_traits::difference_type difference_type; + typedef typename __alloc_traits::pointer pointer; + typedef typename __alloc_traits::const_pointer const_pointer; + + static const difference_type __block_size; + + typedef typename __rebind_alloc_helper<__alloc_traits, pointer>::type __pointer_allocator; + typedef allocator_traits<__pointer_allocator> __map_traits; + typedef typename __map_traits::pointer __map_pointer; + typedef typename __rebind_alloc_helper<__alloc_traits, const_pointer>::type __const_pointer_allocator; + typedef typename allocator_traits<__const_pointer_allocator>::const_pointer __map_const_pointer; + typedef __split_buffer<pointer, __pointer_allocator> __map; + + typedef __deque_iterator<value_type, pointer, reference, __map_pointer, + difference_type> iterator; + typedef __deque_iterator<value_type, const_pointer, const_reference, __map_const_pointer, + difference_type> const_iterator; + + __map __map_; + size_type __start_; + __compressed_pair<size_type, allocator_type> __size_; + + iterator begin() _NOEXCEPT; + const_iterator begin() const _NOEXCEPT; + iterator end() _NOEXCEPT; + const_iterator end() const _NOEXCEPT; + + _LIBCPP_INLINE_VISIBILITY size_type& size() {return __size_.first();} + _LIBCPP_INLINE_VISIBILITY + const size_type& size() const _NOEXCEPT {return __size_.first();} + _LIBCPP_INLINE_VISIBILITY allocator_type& __alloc() {return __size_.second();} + _LIBCPP_INLINE_VISIBILITY + const allocator_type& __alloc() const _NOEXCEPT {return __size_.second();} + + _LIBCPP_INLINE_VISIBILITY + __deque_base() + _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value); + _LIBCPP_INLINE_VISIBILITY + explicit __deque_base(const allocator_type& __a); +public: + ~__deque_base(); + +#ifndef _LIBCPP_CXX03_LANG + __deque_base(__deque_base&& __c) + _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value); + __deque_base(__deque_base&& __c, const allocator_type& __a); +#endif // _LIBCPP_CXX03_LANG + + void swap(__deque_base& __c) +#if _LIBCPP_STD_VER >= 14 + _NOEXCEPT; +#else + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || + __is_nothrow_swappable<allocator_type>::value); +#endif +protected: + void clear() _NOEXCEPT; + + bool __invariants() const; + + _LIBCPP_INLINE_VISIBILITY + void __move_assign(__deque_base& __c) + _NOEXCEPT_(__alloc_traits::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value) + { + __map_ = _VSTD::move(__c.__map_); + __start_ = __c.__start_; + size() = __c.size(); + __move_assign_alloc(__c); + __c.__start_ = __c.size() = 0; + } + + _LIBCPP_INLINE_VISIBILITY + void __move_assign_alloc(__deque_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 __move_assign_alloc(__deque_base& __c, true_type) + _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) + { + __alloc() = _VSTD::move(__c.__alloc()); + } + + _LIBCPP_INLINE_VISIBILITY + void __move_assign_alloc(__deque_base&, false_type) _NOEXCEPT + {} +}; + +template <class _Tp, class _Allocator> +const typename __deque_base<_Tp, _Allocator>::difference_type + __deque_base<_Tp, _Allocator>::__block_size = + __deque_block_size<value_type, difference_type>::value; + +template <class _Tp, class _Allocator> +bool +__deque_base<_Tp, _Allocator>::__invariants() const +{ + if (!__map_.__invariants()) + return false; + if (__map_.size() >= size_type(-1) / __block_size) + return false; + for (typename __map::const_iterator __i = __map_.begin(), __e = __map_.end(); + __i != __e; ++__i) + if (*__i == nullptr) + return false; + if (__map_.size() != 0) + { + if (size() >= __map_.size() * __block_size) + return false; + if (__start_ >= __map_.size() * __block_size - size()) + return false; + } + else + { + if (size() != 0) + return false; + if (__start_ != 0) + return false; + } + return true; +} + +template <class _Tp, class _Allocator> +typename __deque_base<_Tp, _Allocator>::iterator +__deque_base<_Tp, _Allocator>::begin() _NOEXCEPT +{ + __map_pointer __mp = __map_.begin() + __start_ / __block_size; + return iterator(__mp, __map_.empty() ? 0 : *__mp + __start_ % __block_size); +} + +template <class _Tp, class _Allocator> +typename __deque_base<_Tp, _Allocator>::const_iterator +__deque_base<_Tp, _Allocator>::begin() const _NOEXCEPT +{ + __map_const_pointer __mp = static_cast<__map_const_pointer>(__map_.begin() + __start_ / __block_size); + return const_iterator(__mp, __map_.empty() ? 0 : *__mp + __start_ % __block_size); +} + +template <class _Tp, class _Allocator> +typename __deque_base<_Tp, _Allocator>::iterator +__deque_base<_Tp, _Allocator>::end() _NOEXCEPT +{ + size_type __p = size() + __start_; + __map_pointer __mp = __map_.begin() + __p / __block_size; + return iterator(__mp, __map_.empty() ? 0 : *__mp + __p % __block_size); +} + +template <class _Tp, class _Allocator> +typename __deque_base<_Tp, _Allocator>::const_iterator +__deque_base<_Tp, _Allocator>::end() const _NOEXCEPT +{ + size_type __p = size() + __start_; + __map_const_pointer __mp = static_cast<__map_const_pointer>(__map_.begin() + __p / __block_size); + return const_iterator(__mp, __map_.empty() ? 0 : *__mp + __p % __block_size); +} + +template <class _Tp, class _Allocator> +inline +__deque_base<_Tp, _Allocator>::__deque_base() + _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) + : __start_(0), __size_(0) {} + +template <class _Tp, class _Allocator> +inline +__deque_base<_Tp, _Allocator>::__deque_base(const allocator_type& __a) + : __map_(__pointer_allocator(__a)), __start_(0), __size_(0, __a) {} + +template <class _Tp, class _Allocator> +__deque_base<_Tp, _Allocator>::~__deque_base() +{ + clear(); + typename __map::iterator __i = __map_.begin(); + typename __map::iterator __e = __map_.end(); + for (; __i != __e; ++__i) + __alloc_traits::deallocate(__alloc(), *__i, __block_size); +} + +#ifndef _LIBCPP_CXX03_LANG + +template <class _Tp, class _Allocator> +__deque_base<_Tp, _Allocator>::__deque_base(__deque_base&& __c) + _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) + : __map_(_VSTD::move(__c.__map_)), + __start_(_VSTD::move(__c.__start_)), + __size_(_VSTD::move(__c.__size_)) +{ + __c.__start_ = 0; + __c.size() = 0; +} + +template <class _Tp, class _Allocator> +__deque_base<_Tp, _Allocator>::__deque_base(__deque_base&& __c, const allocator_type& __a) + : __map_(_VSTD::move(__c.__map_), __pointer_allocator(__a)), + __start_(_VSTD::move(__c.__start_)), + __size_(_VSTD::move(__c.size()), __a) +{ + if (__a == __c.__alloc()) + { + __c.__start_ = 0; + __c.size() = 0; + } + else + { + __map_.clear(); + __start_ = 0; + size() = 0; + } +} + +#endif // _LIBCPP_CXX03_LANG + +template <class _Tp, class _Allocator> +void +__deque_base<_Tp, _Allocator>::swap(__deque_base& __c) +#if _LIBCPP_STD_VER >= 14 + _NOEXCEPT +#else + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || + __is_nothrow_swappable<allocator_type>::value) +#endif +{ + __map_.swap(__c.__map_); + _VSTD::swap(__start_, __c.__start_); + _VSTD::swap(size(), __c.size()); + __swap_allocator(__alloc(), __c.__alloc()); +} + +template <class _Tp, class _Allocator> +void +__deque_base<_Tp, _Allocator>::clear() _NOEXCEPT +{ + allocator_type& __a = __alloc(); + for (iterator __i = begin(), __e = end(); __i != __e; ++__i) + __alloc_traits::destroy(__a, _VSTD::addressof(*__i)); + size() = 0; + while (__map_.size() > 2) + { + __alloc_traits::deallocate(__a, __map_.front(), __block_size); + __map_.pop_front(); + } + switch (__map_.size()) + { + case 1: + __start_ = __block_size / 2; + break; + case 2: + __start_ = __block_size; + break; + } +} + +template <class _Tp, class _Allocator /*= allocator<_Tp>*/> +class _LIBCPP_TEMPLATE_VIS deque + : private __deque_base<_Tp, _Allocator> +{ +public: + // types: + + typedef _Tp value_type; + typedef _Allocator allocator_type; + + static_assert((is_same<typename allocator_type::value_type, value_type>::value), + "Allocator::value_type must be same type as value_type"); + + typedef __deque_base<value_type, allocator_type> __base; + + typedef typename __base::__alloc_traits __alloc_traits; + typedef typename __base::reference reference; + typedef typename __base::const_reference const_reference; + typedef typename __base::iterator iterator; + typedef typename __base::const_iterator const_iterator; + 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 _VSTD::reverse_iterator<iterator> reverse_iterator; + typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator; + + // construct/copy/destroy: + _LIBCPP_INLINE_VISIBILITY + deque() + _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) + {} + _LIBCPP_INLINE_VISIBILITY explicit deque(const allocator_type& __a) : __base(__a) {} + explicit deque(size_type __n); +#if _LIBCPP_STD_VER > 11 + explicit deque(size_type __n, const _Allocator& __a); +#endif + deque(size_type __n, const value_type& __v); + deque(size_type __n, const value_type& __v, const allocator_type& __a); + template <class _InputIter> + deque(_InputIter __f, _InputIter __l, + typename enable_if<__is_input_iterator<_InputIter>::value>::type* = 0); + template <class _InputIter> + deque(_InputIter __f, _InputIter __l, const allocator_type& __a, + typename enable_if<__is_input_iterator<_InputIter>::value>::type* = 0); + deque(const deque& __c); + deque(const deque& __c, const allocator_type& __a); + + deque& operator=(const deque& __c); + +#ifndef _LIBCPP_CXX03_LANG + deque(initializer_list<value_type> __il); + deque(initializer_list<value_type> __il, const allocator_type& __a); + + _LIBCPP_INLINE_VISIBILITY + deque& operator=(initializer_list<value_type> __il) {assign(__il); return *this;} + + _LIBCPP_INLINE_VISIBILITY + deque(deque&& __c) _NOEXCEPT_(is_nothrow_move_constructible<__base>::value); + _LIBCPP_INLINE_VISIBILITY + deque(deque&& __c, const allocator_type& __a); + _LIBCPP_INLINE_VISIBILITY + deque& operator=(deque&& __c) + _NOEXCEPT_(__alloc_traits::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value); + + _LIBCPP_INLINE_VISIBILITY + void assign(initializer_list<value_type> __il) {assign(__il.begin(), __il.end());} +#endif // _LIBCPP_CXX03_LANG + + template <class _InputIter> + void assign(_InputIter __f, _InputIter __l, + typename enable_if<__is_input_iterator<_InputIter>::value && + !__is_random_access_iterator<_InputIter>::value>::type* = 0); + template <class _RAIter> + void assign(_RAIter __f, _RAIter __l, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type* = 0); + void assign(size_type __n, const value_type& __v); + + _LIBCPP_INLINE_VISIBILITY + allocator_type get_allocator() const _NOEXCEPT; + + // iterators: + + _LIBCPP_INLINE_VISIBILITY + iterator begin() _NOEXCEPT {return __base::begin();} + _LIBCPP_INLINE_VISIBILITY + const_iterator begin() const _NOEXCEPT {return __base::begin();} + _LIBCPP_INLINE_VISIBILITY + iterator end() _NOEXCEPT {return __base::end();} + _LIBCPP_INLINE_VISIBILITY + const_iterator end() const _NOEXCEPT {return __base::end();} + + _LIBCPP_INLINE_VISIBILITY + reverse_iterator rbegin() _NOEXCEPT + {return reverse_iterator(__base::end());} + _LIBCPP_INLINE_VISIBILITY + const_reverse_iterator rbegin() const _NOEXCEPT + {return const_reverse_iterator(__base::end());} + _LIBCPP_INLINE_VISIBILITY + reverse_iterator rend() _NOEXCEPT + {return reverse_iterator(__base::begin());} + _LIBCPP_INLINE_VISIBILITY + const_reverse_iterator rend() const _NOEXCEPT + {return const_reverse_iterator(__base::begin());} + + _LIBCPP_INLINE_VISIBILITY + const_iterator cbegin() const _NOEXCEPT + {return __base::begin();} + _LIBCPP_INLINE_VISIBILITY + const_iterator cend() const _NOEXCEPT + {return __base::end();} + _LIBCPP_INLINE_VISIBILITY + const_reverse_iterator crbegin() const _NOEXCEPT + {return const_reverse_iterator(__base::end());} + _LIBCPP_INLINE_VISIBILITY + const_reverse_iterator crend() const _NOEXCEPT + {return const_reverse_iterator(__base::begin());} + + // capacity: + _LIBCPP_INLINE_VISIBILITY + size_type size() const _NOEXCEPT {return __base::size();} + _LIBCPP_INLINE_VISIBILITY + size_type max_size() const _NOEXCEPT + {return std::min<size_type>( + __alloc_traits::max_size(__base::__alloc()), + numeric_limits<difference_type>::max());} + void resize(size_type __n); + void resize(size_type __n, const value_type& __v); + void shrink_to_fit() _NOEXCEPT; + _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY + bool empty() const _NOEXCEPT {return __base::size() == 0;} + + // element access: + _LIBCPP_INLINE_VISIBILITY + reference operator[](size_type __i); + _LIBCPP_INLINE_VISIBILITY + const_reference operator[](size_type __i) const; + _LIBCPP_INLINE_VISIBILITY + reference at(size_type __i); + _LIBCPP_INLINE_VISIBILITY + const_reference at(size_type __i) const; + _LIBCPP_INLINE_VISIBILITY + reference front(); + _LIBCPP_INLINE_VISIBILITY + const_reference front() const; + _LIBCPP_INLINE_VISIBILITY + reference back(); + _LIBCPP_INLINE_VISIBILITY + const_reference back() const; + + // 23.2.2.3 modifiers: + void push_front(const value_type& __v); + void push_back(const value_type& __v); +#ifndef _LIBCPP_CXX03_LANG +#if _LIBCPP_STD_VER > 14 + template <class... _Args> reference emplace_front(_Args&&... __args); + template <class... _Args> reference emplace_back (_Args&&... __args); +#else + template <class... _Args> void emplace_front(_Args&&... __args); + template <class... _Args> void emplace_back (_Args&&... __args); +#endif + template <class... _Args> iterator emplace(const_iterator __p, _Args&&... __args); + + void push_front(value_type&& __v); + void push_back(value_type&& __v); + iterator insert(const_iterator __p, value_type&& __v); + + _LIBCPP_INLINE_VISIBILITY + iterator insert(const_iterator __p, initializer_list<value_type> __il) + {return insert(__p, __il.begin(), __il.end());} +#endif // _LIBCPP_CXX03_LANG + iterator insert(const_iterator __p, const value_type& __v); + iterator insert(const_iterator __p, size_type __n, const value_type& __v); + template <class _InputIter> + iterator insert(const_iterator __p, _InputIter __f, _InputIter __l, + typename enable_if<__is_input_iterator<_InputIter>::value + &&!__is_forward_iterator<_InputIter>::value>::type* = 0); + template <class _ForwardIterator> + iterator insert(const_iterator __p, _ForwardIterator __f, _ForwardIterator __l, + typename enable_if<__is_forward_iterator<_ForwardIterator>::value + &&!__is_bidirectional_iterator<_ForwardIterator>::value>::type* = 0); + template <class _BiIter> + iterator insert(const_iterator __p, _BiIter __f, _BiIter __l, + typename enable_if<__is_bidirectional_iterator<_BiIter>::value>::type* = 0); + + void pop_front(); + void pop_back(); + iterator erase(const_iterator __p); + iterator erase(const_iterator __f, const_iterator __l); + + _LIBCPP_INLINE_VISIBILITY + void swap(deque& __c) +#if _LIBCPP_STD_VER >= 14 + _NOEXCEPT; +#else + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || + __is_nothrow_swappable<allocator_type>::value); +#endif + _LIBCPP_INLINE_VISIBILITY + void clear() _NOEXCEPT; + + _LIBCPP_INLINE_VISIBILITY + bool __invariants() const {return __base::__invariants();} +private: + typedef typename __base::__map_const_pointer __map_const_pointer; + + _LIBCPP_INLINE_VISIBILITY + static size_type __recommend_blocks(size_type __n) + { + return __n / __base::__block_size + (__n % __base::__block_size != 0); + } + _LIBCPP_INLINE_VISIBILITY + size_type __capacity() const + { + return __base::__map_.size() == 0 ? 0 : __base::__map_.size() * __base::__block_size - 1; + } + _LIBCPP_INLINE_VISIBILITY + size_type __front_spare() const + { + return __base::__start_; + } + _LIBCPP_INLINE_VISIBILITY + size_type __back_spare() const + { + return __capacity() - (__base::__start_ + __base::size()); + } + + template <class _InpIter> + void __append(_InpIter __f, _InpIter __l, + typename enable_if<__is_input_iterator<_InpIter>::value && + !__is_forward_iterator<_InpIter>::value>::type* = 0); + template <class _ForIter> + void __append(_ForIter __f, _ForIter __l, + typename enable_if<__is_forward_iterator<_ForIter>::value>::type* = 0); + void __append(size_type __n); + void __append(size_type __n, const value_type& __v); + void __erase_to_end(const_iterator __f); + void __add_front_capacity(); + void __add_front_capacity(size_type __n); + void __add_back_capacity(); + void __add_back_capacity(size_type __n); + iterator __move_and_check(iterator __f, iterator __l, iterator __r, + const_pointer& __vt); + iterator __move_backward_and_check(iterator __f, iterator __l, iterator __r, + const_pointer& __vt); + void __move_construct_and_check(iterator __f, iterator __l, + iterator __r, const_pointer& __vt); + void __move_construct_backward_and_check(iterator __f, iterator __l, + iterator __r, const_pointer& __vt); + + _LIBCPP_INLINE_VISIBILITY + void __copy_assign_alloc(const deque& __c) + {__copy_assign_alloc(__c, integral_constant<bool, + __alloc_traits::propagate_on_container_copy_assignment::value>());} + + _LIBCPP_INLINE_VISIBILITY + void __copy_assign_alloc(const deque& __c, true_type) + { + if (__base::__alloc() != __c.__alloc()) + { + clear(); + shrink_to_fit(); + } + __base::__alloc() = __c.__alloc(); + __base::__map_.__alloc() = __c.__map_.__alloc(); + } + + _LIBCPP_INLINE_VISIBILITY + void __copy_assign_alloc(const deque&, false_type) + {} + + void __move_assign(deque& __c, true_type) + _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value); + void __move_assign(deque& __c, false_type); +}; + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(size_type __n) +{ + if (__n > 0) + __append(__n); +} + +#if _LIBCPP_STD_VER > 11 +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(size_type __n, const _Allocator& __a) + : __base(__a) +{ + if (__n > 0) + __append(__n); +} +#endif + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(size_type __n, const value_type& __v) +{ + if (__n > 0) + __append(__n, __v); +} + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(size_type __n, const value_type& __v, const allocator_type& __a) + : __base(__a) +{ + if (__n > 0) + __append(__n, __v); +} + +template <class _Tp, class _Allocator> +template <class _InputIter> +deque<_Tp, _Allocator>::deque(_InputIter __f, _InputIter __l, + typename enable_if<__is_input_iterator<_InputIter>::value>::type*) +{ + __append(__f, __l); +} + +template <class _Tp, class _Allocator> +template <class _InputIter> +deque<_Tp, _Allocator>::deque(_InputIter __f, _InputIter __l, const allocator_type& __a, + typename enable_if<__is_input_iterator<_InputIter>::value>::type*) + : __base(__a) +{ + __append(__f, __l); +} + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(const deque& __c) + : __base(__alloc_traits::select_on_container_copy_construction(__c.__alloc())) +{ + __append(__c.begin(), __c.end()); +} + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(const deque& __c, const allocator_type& __a) + : __base(__a) +{ + __append(__c.begin(), __c.end()); +} + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>& +deque<_Tp, _Allocator>::operator=(const deque& __c) +{ + if (this != &__c) + { + __copy_assign_alloc(__c); + assign(__c.begin(), __c.end()); + } + return *this; +} + +#ifndef _LIBCPP_CXX03_LANG + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(initializer_list<value_type> __il) +{ + __append(__il.begin(), __il.end()); +} + +template <class _Tp, class _Allocator> +deque<_Tp, _Allocator>::deque(initializer_list<value_type> __il, const allocator_type& __a) + : __base(__a) +{ + __append(__il.begin(), __il.end()); +} + +template <class _Tp, class _Allocator> +inline +deque<_Tp, _Allocator>::deque(deque&& __c) + _NOEXCEPT_(is_nothrow_move_constructible<__base>::value) + : __base(_VSTD::move(__c)) +{ +} + +template <class _Tp, class _Allocator> +inline +deque<_Tp, _Allocator>::deque(deque&& __c, const allocator_type& __a) + : __base(_VSTD::move(__c), __a) +{ + if (__a != __c.__alloc()) + { + typedef move_iterator<iterator> _Ip; + assign(_Ip(__c.begin()), _Ip(__c.end())); + } +} + +template <class _Tp, class _Allocator> +inline +deque<_Tp, _Allocator>& +deque<_Tp, _Allocator>::operator=(deque&& __c) + _NOEXCEPT_(__alloc_traits::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value) +{ + __move_assign(__c, integral_constant<bool, + __alloc_traits::propagate_on_container_move_assignment::value>()); + return *this; +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__move_assign(deque& __c, false_type) +{ + 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 +deque<_Tp, _Allocator>::__move_assign(deque& __c, true_type) + _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value) +{ + clear(); + shrink_to_fit(); + __base::__move_assign(__c); +} + +#endif // _LIBCPP_CXX03_LANG + +template <class _Tp, class _Allocator> +template <class _InputIter> +void +deque<_Tp, _Allocator>::assign(_InputIter __f, _InputIter __l, + typename enable_if<__is_input_iterator<_InputIter>::value && + !__is_random_access_iterator<_InputIter>::value>::type*) +{ + iterator __i = __base::begin(); + iterator __e = __base::end(); + for (; __f != __l && __i != __e; ++__f, (void) ++__i) + *__i = *__f; + if (__f != __l) + __append(__f, __l); + else + __erase_to_end(__i); +} + +template <class _Tp, class _Allocator> +template <class _RAIter> +void +deque<_Tp, _Allocator>::assign(_RAIter __f, _RAIter __l, + typename enable_if<__is_random_access_iterator<_RAIter>::value>::type*) +{ + if (static_cast<size_type>(__l - __f) > __base::size()) + { + _RAIter __m = __f + __base::size(); + _VSTD::copy(__f, __m, __base::begin()); + __append(__m, __l); + } + else + __erase_to_end(_VSTD::copy(__f, __l, __base::begin())); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::assign(size_type __n, const value_type& __v) +{ + if (__n > __base::size()) + { + _VSTD::fill_n(__base::begin(), __base::size(), __v); + __n -= __base::size(); + __append(__n, __v); + } + else + __erase_to_end(_VSTD::fill_n(__base::begin(), __n, __v)); +} + +template <class _Tp, class _Allocator> +inline +_Allocator +deque<_Tp, _Allocator>::get_allocator() const _NOEXCEPT +{ + return __base::__alloc(); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::resize(size_type __n) +{ + if (__n > __base::size()) + __append(__n - __base::size()); + else if (__n < __base::size()) + __erase_to_end(__base::begin() + __n); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::resize(size_type __n, const value_type& __v) +{ + if (__n > __base::size()) + __append(__n - __base::size(), __v); + else if (__n < __base::size()) + __erase_to_end(__base::begin() + __n); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::shrink_to_fit() _NOEXCEPT +{ + allocator_type& __a = __base::__alloc(); + if (empty()) + { + while (__base::__map_.size() > 0) + { + __alloc_traits::deallocate(__a, __base::__map_.back(), __base::__block_size); + __base::__map_.pop_back(); + } + __base::__start_ = 0; + } + else + { + if (__front_spare() >= __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.front(), __base::__block_size); + __base::__map_.pop_front(); + __base::__start_ -= __base::__block_size; + } + if (__back_spare() >= __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.back(), __base::__block_size); + __base::__map_.pop_back(); + } + } + __base::__map_.shrink_to_fit(); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::reference +deque<_Tp, _Allocator>::operator[](size_type __i) +{ + size_type __p = __base::__start_ + __i; + return *(*(__base::__map_.begin() + __p / __base::__block_size) + __p % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::const_reference +deque<_Tp, _Allocator>::operator[](size_type __i) const +{ + size_type __p = __base::__start_ + __i; + return *(*(__base::__map_.begin() + __p / __base::__block_size) + __p % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::reference +deque<_Tp, _Allocator>::at(size_type __i) +{ + if (__i >= __base::size()) + __base::__throw_out_of_range(); + size_type __p = __base::__start_ + __i; + return *(*(__base::__map_.begin() + __p / __base::__block_size) + __p % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::const_reference +deque<_Tp, _Allocator>::at(size_type __i) const +{ + if (__i >= __base::size()) + __base::__throw_out_of_range(); + size_type __p = __base::__start_ + __i; + return *(*(__base::__map_.begin() + __p / __base::__block_size) + __p % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::reference +deque<_Tp, _Allocator>::front() +{ + return *(*(__base::__map_.begin() + __base::__start_ / __base::__block_size) + + __base::__start_ % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::const_reference +deque<_Tp, _Allocator>::front() const +{ + return *(*(__base::__map_.begin() + __base::__start_ / __base::__block_size) + + __base::__start_ % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::reference +deque<_Tp, _Allocator>::back() +{ + size_type __p = __base::size() + __base::__start_ - 1; + return *(*(__base::__map_.begin() + __p / __base::__block_size) + __p % __base::__block_size); +} + +template <class _Tp, class _Allocator> +inline +typename deque<_Tp, _Allocator>::const_reference +deque<_Tp, _Allocator>::back() const +{ + size_type __p = __base::size() + __base::__start_ - 1; + return *(*(__base::__map_.begin() + __p / __base::__block_size) + __p % __base::__block_size); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::push_back(const value_type& __v) +{ + allocator_type& __a = __base::__alloc(); + if (__back_spare() == 0) + __add_back_capacity(); + // __back_spare() >= 1 + __alloc_traits::construct(__a, _VSTD::addressof(*__base::end()), __v); + ++__base::size(); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::push_front(const value_type& __v) +{ + allocator_type& __a = __base::__alloc(); + if (__front_spare() == 0) + __add_front_capacity(); + // __front_spare() >= 1 + __alloc_traits::construct(__a, _VSTD::addressof(*--__base::begin()), __v); + --__base::__start_; + ++__base::size(); +} + +#ifndef _LIBCPP_CXX03_LANG +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::push_back(value_type&& __v) +{ + allocator_type& __a = __base::__alloc(); + if (__back_spare() == 0) + __add_back_capacity(); + // __back_spare() >= 1 + __alloc_traits::construct(__a, _VSTD::addressof(*__base::end()), _VSTD::move(__v)); + ++__base::size(); +} + +template <class _Tp, class _Allocator> +template <class... _Args> +#if _LIBCPP_STD_VER > 14 +typename deque<_Tp, _Allocator>::reference +#else +void +#endif +deque<_Tp, _Allocator>::emplace_back(_Args&&... __args) +{ + allocator_type& __a = __base::__alloc(); + if (__back_spare() == 0) + __add_back_capacity(); + // __back_spare() >= 1 + __alloc_traits::construct(__a, _VSTD::addressof(*__base::end()), + _VSTD::forward<_Args>(__args)...); + ++__base::size(); +#if _LIBCPP_STD_VER > 14 + return *--__base::end(); +#endif +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::push_front(value_type&& __v) +{ + allocator_type& __a = __base::__alloc(); + if (__front_spare() == 0) + __add_front_capacity(); + // __front_spare() >= 1 + __alloc_traits::construct(__a, _VSTD::addressof(*--__base::begin()), _VSTD::move(__v)); + --__base::__start_; + ++__base::size(); +} + + +template <class _Tp, class _Allocator> +template <class... _Args> +#if _LIBCPP_STD_VER > 14 +typename deque<_Tp, _Allocator>::reference +#else +void +#endif +deque<_Tp, _Allocator>::emplace_front(_Args&&... __args) +{ + allocator_type& __a = __base::__alloc(); + if (__front_spare() == 0) + __add_front_capacity(); + // __front_spare() >= 1 + __alloc_traits::construct(__a, _VSTD::addressof(*--__base::begin()), _VSTD::forward<_Args>(__args)...); + --__base::__start_; + ++__base::size(); +#if _LIBCPP_STD_VER > 14 + return *__base::begin(); +#endif +} + +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::insert(const_iterator __p, value_type&& __v) +{ + size_type __pos = __p - __base::begin(); + size_type __to_end = __base::size() - __pos; + allocator_type& __a = __base::__alloc(); + if (__pos < __to_end) + { // insert by shifting things backward + if (__front_spare() == 0) + __add_front_capacity(); + // __front_spare() >= 1 + if (__pos == 0) + { + __alloc_traits::construct(__a, _VSTD::addressof(*--__base::begin()), _VSTD::move(__v)); + --__base::__start_; + ++__base::size(); + } + else + { + iterator __b = __base::begin(); + iterator __bm1 = _VSTD::prev(__b); + __alloc_traits::construct(__a, _VSTD::addressof(*__bm1), _VSTD::move(*__b)); + --__base::__start_; + ++__base::size(); + if (__pos > 1) + __b = _VSTD::move(_VSTD::next(__b), __b + __pos, __b); + *__b = _VSTD::move(__v); + } + } + else + { // insert by shifting things forward + if (__back_spare() == 0) + __add_back_capacity(); + // __back_capacity >= 1 + size_type __de = __base::size() - __pos; + if (__de == 0) + { + __alloc_traits::construct(__a, _VSTD::addressof(*__base::end()), _VSTD::move(__v)); + ++__base::size(); + } + else + { + iterator __e = __base::end(); + iterator __em1 = _VSTD::prev(__e); + __alloc_traits::construct(__a, _VSTD::addressof(*__e), _VSTD::move(*__em1)); + ++__base::size(); + if (__de > 1) + __e = _VSTD::move_backward(__e - __de, __em1, __e); + *--__e = _VSTD::move(__v); + } + } + return __base::begin() + __pos; +} + +template <class _Tp, class _Allocator> +template <class... _Args> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::emplace(const_iterator __p, _Args&&... __args) +{ + size_type __pos = __p - __base::begin(); + size_type __to_end = __base::size() - __pos; + allocator_type& __a = __base::__alloc(); + if (__pos < __to_end) + { // insert by shifting things backward + if (__front_spare() == 0) + __add_front_capacity(); + // __front_spare() >= 1 + if (__pos == 0) + { + __alloc_traits::construct(__a, _VSTD::addressof(*--__base::begin()), _VSTD::forward<_Args>(__args)...); + --__base::__start_; + ++__base::size(); + } + else + { + __temp_value<value_type, _Allocator> __tmp(this->__alloc(), _VSTD::forward<_Args>(__args)...); + iterator __b = __base::begin(); + iterator __bm1 = _VSTD::prev(__b); + __alloc_traits::construct(__a, _VSTD::addressof(*__bm1), _VSTD::move(*__b)); + --__base::__start_; + ++__base::size(); + if (__pos > 1) + __b = _VSTD::move(_VSTD::next(__b), __b + __pos, __b); + *__b = _VSTD::move(__tmp.get()); + } + } + else + { // insert by shifting things forward + if (__back_spare() == 0) + __add_back_capacity(); + // __back_capacity >= 1 + size_type __de = __base::size() - __pos; + if (__de == 0) + { + __alloc_traits::construct(__a, _VSTD::addressof(*__base::end()), _VSTD::forward<_Args>(__args)...); + ++__base::size(); + } + else + { + __temp_value<value_type, _Allocator> __tmp(this->__alloc(), _VSTD::forward<_Args>(__args)...); + iterator __e = __base::end(); + iterator __em1 = _VSTD::prev(__e); + __alloc_traits::construct(__a, _VSTD::addressof(*__e), _VSTD::move(*__em1)); + ++__base::size(); + if (__de > 1) + __e = _VSTD::move_backward(__e - __de, __em1, __e); + *--__e = _VSTD::move(__tmp.get()); + } + } + return __base::begin() + __pos; +} + +#endif // _LIBCPP_CXX03_LANG + + +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::insert(const_iterator __p, const value_type& __v) +{ + size_type __pos = __p - __base::begin(); + size_type __to_end = __base::size() - __pos; + allocator_type& __a = __base::__alloc(); + if (__pos < __to_end) + { // insert by shifting things backward + if (__front_spare() == 0) + __add_front_capacity(); + // __front_spare() >= 1 + if (__pos == 0) + { + __alloc_traits::construct(__a, _VSTD::addressof(*--__base::begin()), __v); + --__base::__start_; + ++__base::size(); + } + else + { + const_pointer __vt = pointer_traits<const_pointer>::pointer_to(__v); + iterator __b = __base::begin(); + iterator __bm1 = _VSTD::prev(__b); + if (__vt == pointer_traits<const_pointer>::pointer_to(*__b)) + __vt = pointer_traits<const_pointer>::pointer_to(*__bm1); + __alloc_traits::construct(__a, _VSTD::addressof(*__bm1), _VSTD::move(*__b)); + --__base::__start_; + ++__base::size(); + if (__pos > 1) + __b = __move_and_check(_VSTD::next(__b), __b + __pos, __b, __vt); + *__b = *__vt; + } + } + else + { // insert by shifting things forward + if (__back_spare() == 0) + __add_back_capacity(); + // __back_capacity >= 1 + size_type __de = __base::size() - __pos; + if (__de == 0) + { + __alloc_traits::construct(__a, _VSTD::addressof(*__base::end()), __v); + ++__base::size(); + } + else + { + const_pointer __vt = pointer_traits<const_pointer>::pointer_to(__v); + iterator __e = __base::end(); + iterator __em1 = _VSTD::prev(__e); + if (__vt == pointer_traits<const_pointer>::pointer_to(*__em1)) + __vt = pointer_traits<const_pointer>::pointer_to(*__e); + __alloc_traits::construct(__a, _VSTD::addressof(*__e), _VSTD::move(*__em1)); + ++__base::size(); + if (__de > 1) + __e = __move_backward_and_check(__e - __de, __em1, __e, __vt); + *--__e = *__vt; + } + } + return __base::begin() + __pos; +} + +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::insert(const_iterator __p, size_type __n, const value_type& __v) +{ + size_type __pos = __p - __base::begin(); + size_type __to_end = __base::size() - __pos; + allocator_type& __a = __base::__alloc(); + if (__pos < __to_end) + { // insert by shifting things backward + if (__n > __front_spare()) + __add_front_capacity(__n - __front_spare()); + // __n <= __front_spare() + iterator __old_begin = __base::begin(); + iterator __i = __old_begin; + if (__n > __pos) + { + for (size_type __m = __n - __pos; __m; --__m, --__base::__start_, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*--__i), __v); + __n = __pos; + } + if (__n > 0) + { + const_pointer __vt = pointer_traits<const_pointer>::pointer_to(__v); + iterator __obn = __old_begin + __n; + __move_construct_backward_and_check(__old_begin, __obn, __i, __vt); + if (__n < __pos) + __old_begin = __move_and_check(__obn, __old_begin + __pos, __old_begin, __vt); + _VSTD::fill_n(__old_begin, __n, *__vt); + } + } + else + { // insert by shifting things forward + size_type __back_capacity = __back_spare(); + if (__n > __back_capacity) + __add_back_capacity(__n - __back_capacity); + // __n <= __back_capacity + iterator __old_end = __base::end(); + iterator __i = __old_end; + size_type __de = __base::size() - __pos; + if (__n > __de) + { + for (size_type __m = __n - __de; __m; --__m, ++__i, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__i), __v); + __n = __de; + } + if (__n > 0) + { + const_pointer __vt = pointer_traits<const_pointer>::pointer_to(__v); + iterator __oen = __old_end - __n; + __move_construct_and_check(__oen, __old_end, __i, __vt); + if (__n < __de) + __old_end = __move_backward_and_check(__old_end - __de, __oen, __old_end, __vt); + _VSTD::fill_n(__old_end - __n, __n, *__vt); + } + } + return __base::begin() + __pos; +} + +template <class _Tp, class _Allocator> +template <class _InputIter> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::insert(const_iterator __p, _InputIter __f, _InputIter __l, + typename enable_if<__is_input_iterator<_InputIter>::value + &&!__is_forward_iterator<_InputIter>::value>::type*) +{ + __split_buffer<value_type, allocator_type&> __buf(__base::__alloc()); + __buf.__construct_at_end(__f, __l); + typedef typename __split_buffer<value_type, allocator_type&>::iterator __bi; + return insert(__p, move_iterator<__bi>(__buf.begin()), move_iterator<__bi>(__buf.end())); +} + +template <class _Tp, class _Allocator> +template <class _ForwardIterator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::insert(const_iterator __p, _ForwardIterator __f, _ForwardIterator __l, + typename enable_if<__is_forward_iterator<_ForwardIterator>::value + &&!__is_bidirectional_iterator<_ForwardIterator>::value>::type*) +{ + size_type __n = _VSTD::distance(__f, __l); + __split_buffer<value_type, allocator_type&> __buf(__n, 0, __base::__alloc()); + __buf.__construct_at_end(__f, __l); + typedef typename __split_buffer<value_type, allocator_type&>::iterator __fwd; + return insert(__p, move_iterator<__fwd>(__buf.begin()), move_iterator<__fwd>(__buf.end())); +} + +template <class _Tp, class _Allocator> +template <class _BiIter> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::insert(const_iterator __p, _BiIter __f, _BiIter __l, + typename enable_if<__is_bidirectional_iterator<_BiIter>::value>::type*) +{ + size_type __n = _VSTD::distance(__f, __l); + size_type __pos = __p - __base::begin(); + size_type __to_end = __base::size() - __pos; + allocator_type& __a = __base::__alloc(); + if (__pos < __to_end) + { // insert by shifting things backward + if (__n > __front_spare()) + __add_front_capacity(__n - __front_spare()); + // __n <= __front_spare() + iterator __old_begin = __base::begin(); + iterator __i = __old_begin; + _BiIter __m = __f; + if (__n > __pos) + { + __m = __pos < __n / 2 ? _VSTD::prev(__l, __pos) : _VSTD::next(__f, __n - __pos); + for (_BiIter __j = __m; __j != __f; --__base::__start_, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*--__i), *--__j); + __n = __pos; + } + if (__n > 0) + { + iterator __obn = __old_begin + __n; + for (iterator __j = __obn; __j != __old_begin;) + { + __alloc_traits::construct(__a, _VSTD::addressof(*--__i), _VSTD::move(*--__j)); + --__base::__start_; + ++__base::size(); + } + if (__n < __pos) + __old_begin = _VSTD::move(__obn, __old_begin + __pos, __old_begin); + _VSTD::copy(__m, __l, __old_begin); + } + } + else + { // insert by shifting things forward + size_type __back_capacity = __back_spare(); + if (__n > __back_capacity) + __add_back_capacity(__n - __back_capacity); + // __n <= __back_capacity + iterator __old_end = __base::end(); + iterator __i = __old_end; + _BiIter __m = __l; + size_type __de = __base::size() - __pos; + if (__n > __de) + { + __m = __de < __n / 2 ? _VSTD::next(__f, __de) : _VSTD::prev(__l, __n - __de); + for (_BiIter __j = __m; __j != __l; ++__i, (void) ++__j, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__i), *__j); + __n = __de; + } + if (__n > 0) + { + iterator __oen = __old_end - __n; + for (iterator __j = __oen; __j != __old_end; ++__i, ++__j, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__i), _VSTD::move(*__j)); + if (__n < __de) + __old_end = _VSTD::move_backward(__old_end - __de, __oen, __old_end); + _VSTD::copy_backward(__f, __m, __old_end); + } + } + return __base::begin() + __pos; +} + +template <class _Tp, class _Allocator> +template <class _InpIter> +void +deque<_Tp, _Allocator>::__append(_InpIter __f, _InpIter __l, + typename enable_if<__is_input_iterator<_InpIter>::value && + !__is_forward_iterator<_InpIter>::value>::type*) +{ + for (; __f != __l; ++__f) +#ifdef _LIBCPP_CXX03_LANG + push_back(*__f); +#else + emplace_back(*__f); +#endif +} + +template <class _Tp, class _Allocator> +template <class _ForIter> +void +deque<_Tp, _Allocator>::__append(_ForIter __f, _ForIter __l, + typename enable_if<__is_forward_iterator<_ForIter>::value>::type*) +{ + size_type __n = _VSTD::distance(__f, __l); + allocator_type& __a = __base::__alloc(); + size_type __back_capacity = __back_spare(); + if (__n > __back_capacity) + __add_back_capacity(__n - __back_capacity); + // __n <= __back_capacity + for (iterator __i = __base::end(); __f != __l; ++__i, (void) ++__f, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__i), *__f); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__append(size_type __n) +{ + allocator_type& __a = __base::__alloc(); + size_type __back_capacity = __back_spare(); + if (__n > __back_capacity) + __add_back_capacity(__n - __back_capacity); + // __n <= __back_capacity + for (iterator __i = __base::end(); __n; --__n, ++__i, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__i)); +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__append(size_type __n, const value_type& __v) +{ + allocator_type& __a = __base::__alloc(); + size_type __back_capacity = __back_spare(); + if (__n > __back_capacity) + __add_back_capacity(__n - __back_capacity); + // __n <= __back_capacity + for (iterator __i = __base::end(); __n; --__n, ++__i, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__i), __v); +} + +// Create front capacity for one block of elements. +// Strong guarantee. Either do it or don't touch anything. +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__add_front_capacity() +{ + allocator_type& __a = __base::__alloc(); + if (__back_spare() >= __base::__block_size) + { + __base::__start_ += __base::__block_size; + pointer __pt = __base::__map_.back(); + __base::__map_.pop_back(); + __base::__map_.push_front(__pt); + } + // Else if __base::__map_.size() < __base::__map_.capacity() then we need to allocate 1 buffer + else if (__base::__map_.size() < __base::__map_.capacity()) + { // we can put the new buffer into the map, but don't shift things around + // until all buffers are allocated. If we throw, we don't need to fix + // anything up (any added buffers are undetectible) + if (__base::__map_.__front_spare() > 0) + __base::__map_.push_front(__alloc_traits::allocate(__a, __base::__block_size)); + else + { + __base::__map_.push_back(__alloc_traits::allocate(__a, __base::__block_size)); + // Done allocating, reorder capacity + pointer __pt = __base::__map_.back(); + __base::__map_.pop_back(); + __base::__map_.push_front(__pt); + } + __base::__start_ = __base::__map_.size() == 1 ? + __base::__block_size / 2 : + __base::__start_ + __base::__block_size; + } + // Else need to allocate 1 buffer, *and* we need to reallocate __map_. + else + { + __split_buffer<pointer, typename __base::__pointer_allocator&> + __buf(max<size_type>(2 * __base::__map_.capacity(), 1), + 0, __base::__map_.__alloc()); + + typedef __allocator_destructor<_Allocator> _Dp; + unique_ptr<pointer, _Dp> __hold( + __alloc_traits::allocate(__a, __base::__block_size), + _Dp(__a, __base::__block_size)); + __buf.push_back(__hold.get()); + __hold.release(); + + for (typename __base::__map_pointer __i = __base::__map_.begin(); + __i != __base::__map_.end(); ++__i) + __buf.push_back(*__i); + _VSTD::swap(__base::__map_.__first_, __buf.__first_); + _VSTD::swap(__base::__map_.__begin_, __buf.__begin_); + _VSTD::swap(__base::__map_.__end_, __buf.__end_); + _VSTD::swap(__base::__map_.__end_cap(), __buf.__end_cap()); + __base::__start_ = __base::__map_.size() == 1 ? + __base::__block_size / 2 : + __base::__start_ + __base::__block_size; + } +} + +// Create front capacity for __n elements. +// Strong guarantee. Either do it or don't touch anything. +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__add_front_capacity(size_type __n) +{ + allocator_type& __a = __base::__alloc(); + size_type __nb = __recommend_blocks(__n + __base::__map_.empty()); + // Number of unused blocks at back: + size_type __back_capacity = __back_spare() / __base::__block_size; + __back_capacity = _VSTD::min(__back_capacity, __nb); // don't take more than you need + __nb -= __back_capacity; // number of blocks need to allocate + // If __nb == 0, then we have sufficient capacity. + if (__nb == 0) + { + __base::__start_ += __base::__block_size * __back_capacity; + for (; __back_capacity > 0; --__back_capacity) + { + pointer __pt = __base::__map_.back(); + __base::__map_.pop_back(); + __base::__map_.push_front(__pt); + } + } + // Else if __nb <= __map_.capacity() - __map_.size() then we need to allocate __nb buffers + else if (__nb <= __base::__map_.capacity() - __base::__map_.size()) + { // we can put the new buffers into the map, but don't shift things around + // until all buffers are allocated. If we throw, we don't need to fix + // anything up (any added buffers are undetectible) + for (; __nb > 0; --__nb, __base::__start_ += __base::__block_size - (__base::__map_.size() == 1)) + { + if (__base::__map_.__front_spare() == 0) + break; + __base::__map_.push_front(__alloc_traits::allocate(__a, __base::__block_size)); + } + for (; __nb > 0; --__nb, ++__back_capacity) + __base::__map_.push_back(__alloc_traits::allocate(__a, __base::__block_size)); + // Done allocating, reorder capacity + __base::__start_ += __back_capacity * __base::__block_size; + for (; __back_capacity > 0; --__back_capacity) + { + pointer __pt = __base::__map_.back(); + __base::__map_.pop_back(); + __base::__map_.push_front(__pt); + } + } + // Else need to allocate __nb buffers, *and* we need to reallocate __map_. + else + { + size_type __ds = (__nb + __back_capacity) * __base::__block_size - __base::__map_.empty(); + __split_buffer<pointer, typename __base::__pointer_allocator&> + __buf(max<size_type>(2* __base::__map_.capacity(), + __nb + __base::__map_.size()), + 0, __base::__map_.__alloc()); +#ifndef _LIBCPP_NO_EXCEPTIONS + try + { +#endif // _LIBCPP_NO_EXCEPTIONS + for (; __nb > 0; --__nb) + __buf.push_back(__alloc_traits::allocate(__a, __base::__block_size)); +#ifndef _LIBCPP_NO_EXCEPTIONS + } + catch (...) + { + for (typename __base::__map_pointer __i = __buf.begin(); + __i != __buf.end(); ++__i) + __alloc_traits::deallocate(__a, *__i, __base::__block_size); + throw; + } +#endif // _LIBCPP_NO_EXCEPTIONS + for (; __back_capacity > 0; --__back_capacity) + { + __buf.push_back(__base::__map_.back()); + __base::__map_.pop_back(); + } + for (typename __base::__map_pointer __i = __base::__map_.begin(); + __i != __base::__map_.end(); ++__i) + __buf.push_back(*__i); + _VSTD::swap(__base::__map_.__first_, __buf.__first_); + _VSTD::swap(__base::__map_.__begin_, __buf.__begin_); + _VSTD::swap(__base::__map_.__end_, __buf.__end_); + _VSTD::swap(__base::__map_.__end_cap(), __buf.__end_cap()); + __base::__start_ += __ds; + } +} + +// Create back capacity for one block of elements. +// Strong guarantee. Either do it or don't touch anything. +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__add_back_capacity() +{ + allocator_type& __a = __base::__alloc(); + if (__front_spare() >= __base::__block_size) + { + __base::__start_ -= __base::__block_size; + pointer __pt = __base::__map_.front(); + __base::__map_.pop_front(); + __base::__map_.push_back(__pt); + } + // Else if __nb <= __map_.capacity() - __map_.size() then we need to allocate __nb buffers + else if (__base::__map_.size() < __base::__map_.capacity()) + { // we can put the new buffer into the map, but don't shift things around + // until it is allocated. If we throw, we don't need to fix + // anything up (any added buffers are undetectible) + if (__base::__map_.__back_spare() != 0) + __base::__map_.push_back(__alloc_traits::allocate(__a, __base::__block_size)); + else + { + __base::__map_.push_front(__alloc_traits::allocate(__a, __base::__block_size)); + // Done allocating, reorder capacity + pointer __pt = __base::__map_.front(); + __base::__map_.pop_front(); + __base::__map_.push_back(__pt); + } + } + // Else need to allocate 1 buffer, *and* we need to reallocate __map_. + else + { + __split_buffer<pointer, typename __base::__pointer_allocator&> + __buf(max<size_type>(2* __base::__map_.capacity(), 1), + __base::__map_.size(), + __base::__map_.__alloc()); + + typedef __allocator_destructor<_Allocator> _Dp; + unique_ptr<pointer, _Dp> __hold( + __alloc_traits::allocate(__a, __base::__block_size), + _Dp(__a, __base::__block_size)); + __buf.push_back(__hold.get()); + __hold.release(); + + for (typename __base::__map_pointer __i = __base::__map_.end(); + __i != __base::__map_.begin();) + __buf.push_front(*--__i); + _VSTD::swap(__base::__map_.__first_, __buf.__first_); + _VSTD::swap(__base::__map_.__begin_, __buf.__begin_); + _VSTD::swap(__base::__map_.__end_, __buf.__end_); + _VSTD::swap(__base::__map_.__end_cap(), __buf.__end_cap()); + } +} + +// Create back capacity for __n elements. +// Strong guarantee. Either do it or don't touch anything. +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__add_back_capacity(size_type __n) +{ + allocator_type& __a = __base::__alloc(); + size_type __nb = __recommend_blocks(__n + __base::__map_.empty()); + // Number of unused blocks at front: + size_type __front_capacity = __front_spare() / __base::__block_size; + __front_capacity = _VSTD::min(__front_capacity, __nb); // don't take more than you need + __nb -= __front_capacity; // number of blocks need to allocate + // If __nb == 0, then we have sufficient capacity. + if (__nb == 0) + { + __base::__start_ -= __base::__block_size * __front_capacity; + for (; __front_capacity > 0; --__front_capacity) + { + pointer __pt = __base::__map_.front(); + __base::__map_.pop_front(); + __base::__map_.push_back(__pt); + } + } + // Else if __nb <= __map_.capacity() - __map_.size() then we need to allocate __nb buffers + else if (__nb <= __base::__map_.capacity() - __base::__map_.size()) + { // we can put the new buffers into the map, but don't shift things around + // until all buffers are allocated. If we throw, we don't need to fix + // anything up (any added buffers are undetectible) + for (; __nb > 0; --__nb) + { + if (__base::__map_.__back_spare() == 0) + break; + __base::__map_.push_back(__alloc_traits::allocate(__a, __base::__block_size)); + } + for (; __nb > 0; --__nb, ++__front_capacity, __base::__start_ += + __base::__block_size - (__base::__map_.size() == 1)) + __base::__map_.push_front(__alloc_traits::allocate(__a, __base::__block_size)); + // Done allocating, reorder capacity + __base::__start_ -= __base::__block_size * __front_capacity; + for (; __front_capacity > 0; --__front_capacity) + { + pointer __pt = __base::__map_.front(); + __base::__map_.pop_front(); + __base::__map_.push_back(__pt); + } + } + // Else need to allocate __nb buffers, *and* we need to reallocate __map_. + else + { + size_type __ds = __front_capacity * __base::__block_size; + __split_buffer<pointer, typename __base::__pointer_allocator&> + __buf(max<size_type>(2* __base::__map_.capacity(), + __nb + __base::__map_.size()), + __base::__map_.size() - __front_capacity, + __base::__map_.__alloc()); +#ifndef _LIBCPP_NO_EXCEPTIONS + try + { +#endif // _LIBCPP_NO_EXCEPTIONS + for (; __nb > 0; --__nb) + __buf.push_back(__alloc_traits::allocate(__a, __base::__block_size)); +#ifndef _LIBCPP_NO_EXCEPTIONS + } + catch (...) + { + for (typename __base::__map_pointer __i = __buf.begin(); + __i != __buf.end(); ++__i) + __alloc_traits::deallocate(__a, *__i, __base::__block_size); + throw; + } +#endif // _LIBCPP_NO_EXCEPTIONS + for (; __front_capacity > 0; --__front_capacity) + { + __buf.push_back(__base::__map_.front()); + __base::__map_.pop_front(); + } + for (typename __base::__map_pointer __i = __base::__map_.end(); + __i != __base::__map_.begin();) + __buf.push_front(*--__i); + _VSTD::swap(__base::__map_.__first_, __buf.__first_); + _VSTD::swap(__base::__map_.__begin_, __buf.__begin_); + _VSTD::swap(__base::__map_.__end_, __buf.__end_); + _VSTD::swap(__base::__map_.__end_cap(), __buf.__end_cap()); + __base::__start_ -= __ds; + } +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::pop_front() +{ + allocator_type& __a = __base::__alloc(); + __alloc_traits::destroy(__a, __to_raw_pointer(*(__base::__map_.begin() + + __base::__start_ / __base::__block_size) + + __base::__start_ % __base::__block_size)); + --__base::size(); + if (++__base::__start_ >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.front(), __base::__block_size); + __base::__map_.pop_front(); + __base::__start_ -= __base::__block_size; + } +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::pop_back() +{ + allocator_type& __a = __base::__alloc(); + size_type __p = __base::size() + __base::__start_ - 1; + __alloc_traits::destroy(__a, __to_raw_pointer(*(__base::__map_.begin() + + __p / __base::__block_size) + + __p % __base::__block_size)); + --__base::size(); + if (__back_spare() >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.back(), __base::__block_size); + __base::__map_.pop_back(); + } +} + +// move assign [__f, __l) to [__r, __r + (__l-__f)). +// If __vt points into [__f, __l), then subtract (__f - __r) from __vt. +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::__move_and_check(iterator __f, iterator __l, iterator __r, + const_pointer& __vt) +{ + // as if + // for (; __f != __l; ++__f, ++__r) + // *__r = _VSTD::move(*__f); + difference_type __n = __l - __f; + while (__n > 0) + { + pointer __fb = __f.__ptr_; + pointer __fe = *__f.__m_iter_ + __base::__block_size; + difference_type __bs = __fe - __fb; + if (__bs > __n) + { + __bs = __n; + __fe = __fb + __bs; + } + if (__fb <= __vt && __vt < __fe) + __vt = (const_iterator(static_cast<__map_const_pointer>(__f.__m_iter_), __vt) -= __f - __r).__ptr_; + __r = _VSTD::move(__fb, __fe, __r); + __n -= __bs; + __f += __bs; + } + return __r; +} + +// move assign [__f, __l) to [__r - (__l-__f), __r) backwards. +// If __vt points into [__f, __l), then add (__r - __l) to __vt. +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::__move_backward_and_check(iterator __f, iterator __l, iterator __r, + const_pointer& __vt) +{ + // as if + // while (__f != __l) + // *--__r = _VSTD::move(*--__l); + difference_type __n = __l - __f; + while (__n > 0) + { + --__l; + pointer __lb = *__l.__m_iter_; + pointer __le = __l.__ptr_ + 1; + difference_type __bs = __le - __lb; + if (__bs > __n) + { + __bs = __n; + __lb = __le - __bs; + } + if (__lb <= __vt && __vt < __le) + __vt = (const_iterator(static_cast<__map_const_pointer>(__l.__m_iter_), __vt) += __r - __l - 1).__ptr_; + __r = _VSTD::move_backward(__lb, __le, __r); + __n -= __bs; + __l -= __bs - 1; + } + return __r; +} + +// move construct [__f, __l) to [__r, __r + (__l-__f)). +// If __vt points into [__f, __l), then add (__r - __f) to __vt. +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__move_construct_and_check(iterator __f, iterator __l, + iterator __r, const_pointer& __vt) +{ + allocator_type& __a = __base::__alloc(); + // as if + // for (; __f != __l; ++__r, ++__f, ++__base::size()) + // __alloc_traits::construct(__a, _VSTD::addressof(*__r), _VSTD::move(*__f)); + difference_type __n = __l - __f; + while (__n > 0) + { + pointer __fb = __f.__ptr_; + pointer __fe = *__f.__m_iter_ + __base::__block_size; + difference_type __bs = __fe - __fb; + if (__bs > __n) + { + __bs = __n; + __fe = __fb + __bs; + } + if (__fb <= __vt && __vt < __fe) + __vt = (const_iterator(static_cast<__map_const_pointer>(__f.__m_iter_), __vt) += __r - __f).__ptr_; + for (; __fb != __fe; ++__fb, ++__r, ++__base::size()) + __alloc_traits::construct(__a, _VSTD::addressof(*__r), _VSTD::move(*__fb)); + __n -= __bs; + __f += __bs; + } +} + +// move construct [__f, __l) to [__r - (__l-__f), __r) backwards. +// If __vt points into [__f, __l), then subtract (__l - __r) from __vt. +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__move_construct_backward_and_check(iterator __f, iterator __l, + iterator __r, const_pointer& __vt) +{ + allocator_type& __a = __base::__alloc(); + // as if + // for (iterator __j = __l; __j != __f;) + // { + // __alloc_traitsconstruct(__a, _VSTD::addressof(*--__r), _VSTD::move(*--__j)); + // --__base::__start_; + // ++__base::size(); + // } + difference_type __n = __l - __f; + while (__n > 0) + { + --__l; + pointer __lb = *__l.__m_iter_; + pointer __le = __l.__ptr_ + 1; + difference_type __bs = __le - __lb; + if (__bs > __n) + { + __bs = __n; + __lb = __le - __bs; + } + if (__lb <= __vt && __vt < __le) + __vt = (const_iterator(static_cast<__map_const_pointer>(__l.__m_iter_), __vt) -= __l - __r + 1).__ptr_; + while (__le != __lb) + { + __alloc_traits::construct(__a, _VSTD::addressof(*--__r), _VSTD::move(*--__le)); + --__base::__start_; + ++__base::size(); + } + __n -= __bs; + __l -= __bs - 1; + } +} + +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::erase(const_iterator __f) +{ + iterator __b = __base::begin(); + difference_type __pos = __f - __b; + iterator __p = __b + __pos; + allocator_type& __a = __base::__alloc(); + if (static_cast<size_t>(__pos) <= (__base::size() - 1) / 2) + { // erase from front + _VSTD::move_backward(__b, __p, _VSTD::next(__p)); + __alloc_traits::destroy(__a, _VSTD::addressof(*__b)); + --__base::size(); + ++__base::__start_; + if (__front_spare() >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.front(), __base::__block_size); + __base::__map_.pop_front(); + __base::__start_ -= __base::__block_size; + } + } + else + { // erase from back + iterator __i = _VSTD::move(_VSTD::next(__p), __base::end(), __p); + __alloc_traits::destroy(__a, _VSTD::addressof(*__i)); + --__base::size(); + if (__back_spare() >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.back(), __base::__block_size); + __base::__map_.pop_back(); + } + } + return __base::begin() + __pos; +} + +template <class _Tp, class _Allocator> +typename deque<_Tp, _Allocator>::iterator +deque<_Tp, _Allocator>::erase(const_iterator __f, const_iterator __l) +{ + difference_type __n = __l - __f; + iterator __b = __base::begin(); + difference_type __pos = __f - __b; + iterator __p = __b + __pos; + if (__n > 0) + { + allocator_type& __a = __base::__alloc(); + if (static_cast<size_t>(__pos) <= (__base::size() - __n) / 2) + { // erase from front + iterator __i = _VSTD::move_backward(__b, __p, __p + __n); + for (; __b != __i; ++__b) + __alloc_traits::destroy(__a, _VSTD::addressof(*__b)); + __base::size() -= __n; + __base::__start_ += __n; + while (__front_spare() >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.front(), __base::__block_size); + __base::__map_.pop_front(); + __base::__start_ -= __base::__block_size; + } + } + else + { // erase from back + iterator __i = _VSTD::move(__p + __n, __base::end(), __p); + for (iterator __e = __base::end(); __i != __e; ++__i) + __alloc_traits::destroy(__a, _VSTD::addressof(*__i)); + __base::size() -= __n; + while (__back_spare() >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.back(), __base::__block_size); + __base::__map_.pop_back(); + } + } + } + return __base::begin() + __pos; +} + +template <class _Tp, class _Allocator> +void +deque<_Tp, _Allocator>::__erase_to_end(const_iterator __f) +{ + iterator __e = __base::end(); + difference_type __n = __e - __f; + if (__n > 0) + { + allocator_type& __a = __base::__alloc(); + iterator __b = __base::begin(); + difference_type __pos = __f - __b; + for (iterator __p = __b + __pos; __p != __e; ++__p) + __alloc_traits::destroy(__a, _VSTD::addressof(*__p)); + __base::size() -= __n; + while (__back_spare() >= 2 * __base::__block_size) + { + __alloc_traits::deallocate(__a, __base::__map_.back(), __base::__block_size); + __base::__map_.pop_back(); + } + } +} + +template <class _Tp, class _Allocator> +inline +void +deque<_Tp, _Allocator>::swap(deque& __c) +#if _LIBCPP_STD_VER >= 14 + _NOEXCEPT +#else + _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || + __is_nothrow_swappable<allocator_type>::value) +#endif +{ + __base::swap(__c); +} + +template <class _Tp, class _Allocator> +inline +void +deque<_Tp, _Allocator>::clear() _NOEXCEPT +{ + __base::clear(); +} + +template <class _Tp, class _Allocator> +inline _LIBCPP_INLINE_VISIBILITY +bool +operator==(const deque<_Tp, _Allocator>& __x, const deque<_Tp, _Allocator>& __y) +{ + const typename deque<_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 deque<_Tp, _Allocator>& __x, const deque<_Tp, _Allocator>& __y) +{ + return !(__x == __y); +} + +template <class _Tp, class _Allocator> +inline _LIBCPP_INLINE_VISIBILITY +bool +operator< (const deque<_Tp, _Allocator>& __x, const deque<_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 deque<_Tp, _Allocator>& __x, const deque<_Tp, _Allocator>& __y) +{ + return __y < __x; +} + +template <class _Tp, class _Allocator> +inline _LIBCPP_INLINE_VISIBILITY +bool +operator>=(const deque<_Tp, _Allocator>& __x, const deque<_Tp, _Allocator>& __y) +{ + return !(__x < __y); +} + +template <class _Tp, class _Allocator> +inline _LIBCPP_INLINE_VISIBILITY +bool +operator<=(const deque<_Tp, _Allocator>& __x, const deque<_Tp, _Allocator>& __y) +{ + return !(__y < __x); +} + +template <class _Tp, class _Allocator> +inline _LIBCPP_INLINE_VISIBILITY +void +swap(deque<_Tp, _Allocator>& __x, deque<_Tp, _Allocator>& __y) + _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) +{ + __x.swap(__y); +} + +_LIBCPP_END_NAMESPACE_STD + +_LIBCPP_POP_MACROS + +#endif // _LIBCPP_DEQUE |