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deque
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2873 lines (2637 loc) · 101 KB
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// -*- 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> void emplace_front(Args&&... args);
template <class... Args> void emplace_back(Args&&... args);
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_type::propagate_on_container_swap::value ||
__is_nothrow_swappable<allocator_type>::value);
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
*/
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include <__config>
#include <__split_buffer>
#include <type_traits>
#include <initializer_list>
#include <iterator>
#include <algorithm>
#include <stdexcept>
#include <__undef_min_max>
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp, class _Allocator> class __deque_base;
template <class _ValueType, class _Pointer, class _Reference, class _MapPointer,
class _DiffType, _DiffType _BlockSize>
class _LIBCPP_TYPE_VIS_ONLY __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 _Pointer, class _Reference, class _MapPointer,
class _DiffType, _DiffType _BlockSize>
class _LIBCPP_TYPE_VIS_ONLY __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 = _BlockSize;
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, __block_size>& __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_TYPE_VIS_ONLY deque;
template <class _Vp, class _Pp, class _Rp, class _MP, class _Dp, _Dp>
friend class _LIBCPP_TYPE_VIS_ONLY __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);
};
// 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;
while (__f != __l)
{
pointer __rb = __r.__ptr_;
pointer __re = *__r.__m_iter_ + _B2;
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;
difference_type __n = __l - __f;
while (__n > 0)
{
pointer __fb = __f.__ptr_;
pointer __fe = *__f.__m_iter_ + _B1;
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;
difference_type __n = __l - __f;
while (__n > 0)
{
pointer __fb = __f.__ptr_;
pointer __fe = *__f.__m_iter_ + _B1;
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;
while (__f != __l)
{
pointer __rb = __r.__ptr_;
pointer __re = *__r.__m_iter_ + _B2;
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;
difference_type __n = __l - __f;
while (__n > 0)
{
pointer __fb = __f.__ptr_;
pointer __fe = *__f.__m_iter_ + _B1;
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;
difference_type __n = __l - __f;
while (__n > 0)
{
pointer __fb = __f.__ptr_;
pointer __fe = *__f.__m_iter_ + _B1;
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:
void __throw_length_error() const;
void __throw_out_of_range() const;
};
template <bool __b>
void
__deque_base_common<__b>::__throw_length_error() const
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw length_error("deque");
#endif
}
template <bool __b>
void
__deque_base_common<__b>::__throw_out_of_range() const
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw out_of_range("deque");
#endif
}
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 = sizeof(value_type) < 256 ? 4096 / sizeof(value_type) : 16;
typedef typename __alloc_traits::template
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
rebind_alloc<pointer>
#else
rebind_alloc<pointer>::other
#endif
__pointer_allocator;
typedef allocator_traits<__pointer_allocator> __map_traits;
typedef typename __map_traits::pointer __map_pointer;
typedef typename __alloc_traits::template
#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
rebind_alloc<const_pointer>
#else
rebind_alloc<const_pointer>::other
#endif
__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, __block_size> iterator;
typedef __deque_iterator<value_type, const_pointer, const_reference, __map_const_pointer,
difference_type, __block_size> 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();}
__deque_base()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
explicit __deque_base(const allocator_type& __a);
public:
~__deque_base();
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
__deque_base(__deque_base&& __c)
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value);
__deque_base(__deque_base&& __c, const allocator_type& __a);
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
void swap(__deque_base& __c)
_NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value ||
__is_nothrow_swappable<allocator_type>::value);
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());
}