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deque.hpp
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deque.hpp
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* deque.hpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ncarob <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/02/23 14:37:03 by ncarob #+# #+# */
/* Updated: 2023/02/23 21:53:47 by ncarob ### ########.fr */
/* */
/* ************************************************************************** */
#ifndef DEQUE_H
# define DEQUE_H
# include <memory>
# include "Additional/equal.hpp"
# include "Additional/is_integral.hpp"
# include "Additional/lexicographical_compare.hpp"
# include "Additional/reverse_iterator.hpp"
namespace ft
{
template <typename T, typename Allocator = std::allocator<T> >
class deque_node {
public:
typedef T value_type;
typedef Allocator allocator_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
typedef deque_node<value_type>* link_type;
typedef ptrdiff_t difference_type;
deque_node(const allocator_type& alloc = allocator_type());
deque_node(const deque_node& other);
~deque_node();
deque_node& operator = (const deque_node& other);
void init(void);
void add_front(const value_type& val);
void add_back(const value_type& val);
void remove_front(void);
void remove_back(void);
const static difference_type _capacity = (sizeof (T) <= 1 ? 16 \
: sizeof (T) <= 2 ? 8 \
: sizeof (T) <= 4 ? 4 \
: sizeof (T) <= 8 ? 2 : 1);
pointer _left_border;
pointer _left;
pointer _right_border;
pointer _right;
link_type _next;
link_type _prev;
allocator_type _alloc;
};
template <typename T, typename Allocator>
deque_node<T, Allocator>::deque_node(const allocator_type& alloc) : _left_border(nullptr), _left(nullptr), _right_border(nullptr), _right(nullptr), _next(nullptr), _prev(nullptr), _alloc(alloc) { }
template <typename T, typename Allocator>
deque_node<T, Allocator>::deque_node(const deque_node& other) : _alloc(other._alloc) {
*this = other;
}
template <typename T, typename Allocator>
deque_node<T, Allocator>::~deque_node() {
if (!_left_border)
return ;
while (_left <= _right)
_alloc.destroy(_left++);
_alloc.deallocate(_left_border, _capacity);
}
template <typename T, typename Allocator>
deque_node<T, Allocator>& deque_node<T, Allocator>::operator = (const deque_node& other) {
if (!other._left_border)
return ;
_left_border = _alloc.allocate(_capacity);
_right_border = _left_border + _capacity - 1;
_left = _left_border + (other._left - other._left_border);
_right = _left;
for (difference_type i = 0; other._left + i != other._right; ++i, ++_right)
_alloc.construct(_right, *(other._left + i));
}
template <typename T, typename Allocator>
void deque_node<T, Allocator>::init(void) {
_left_border = _alloc.allocate(_capacity);
_right_border = _left_border + _capacity - 1;
}
template <typename T, typename Allocator>
void deque_node<T, Allocator>::add_front(const value_type& val) {
if (!_left) {
_left = _right_border;
_right = _left;
_alloc.construct(_left, val);
}
else {
_left--;
_alloc.construct(_left, val);
}
}
template <typename T, typename Allocator>
void deque_node<T, Allocator>::add_back(const value_type& val) {
if (!_right) {
_right = _left_border;
_left = _right;
_alloc.construct(_right, val);
}
else {
_right++;
_alloc.construct(_right, val);
}
}
template <typename T, typename Allocator>
void deque_node<T, Allocator>::remove_front(void) {
_alloc.destroy(_left);
if (_left == _right) {
_left = nullptr;
_right = nullptr;
}
else
_left++;
}
template <typename T, typename Allocator>
void deque_node<T, Allocator>::remove_back(void) {
_alloc.destroy(_right);
if (_left == _right) {
_left = nullptr;
_right = nullptr;
}
else
_right--;
}
template <typename T, typename Node>
class deque_iterator {
public:
typedef Node* iterator;
typedef T value_type;
typedef T* pointer;
typedef T& reference;
typedef std::ptrdiff_t difference_type;
typedef std::bidirectional_iterator_tag iterator_category;
deque_iterator(const iterator& base = iterator(), const pointer& elem = pointer(), const iterator& null = iterator());
deque_iterator(const deque_iterator& other);
~deque_iterator();
deque_iterator& operator = (const deque_iterator& other);
reference operator * (void) const;
pointer operator -> (void) const;
deque_iterator operator ++ (int);
deque_iterator& operator ++ (void);
deque_iterator operator -- (int);
deque_iterator& operator -- (void);
deque_iterator operator + (difference_type diff) const;
deque_iterator operator - (difference_type diff) const;
deque_iterator& operator += (difference_type diff);
deque_iterator& operator -= (difference_type diff);
const iterator& base(void) const;
const pointer& elem(void) const;
const iterator& null(void) const;
iterator _base;
pointer _elem;
iterator _null;
};
template <typename T, typename Node>
deque_iterator<T, Node>::deque_iterator(const iterator& base, const pointer& elem, const iterator& null) : _base(base), _elem(elem), _null(null) { }
template <typename T, typename Node>
deque_iterator<T, Node>::deque_iterator(const deque_iterator& other) : _base(other.base()), _elem(other.elem()), _null(other.null()) { }
template <typename T, typename Node>
deque_iterator<T, Node>::~deque_iterator() { }
template <typename T, typename Node>
deque_iterator<T, Node>& deque_iterator<T, Node>::operator = (const deque_iterator& other) {
if (*this != other) {
_base = other.base();
_elem = other.elem();
_null = other.null();
}
return *this;
}
template <typename T, typename Node>
typename deque_iterator<T, Node>::reference deque_iterator<T, Node>::operator * (void) const {
return *_elem;
}
template <typename T, typename Node>
typename deque_iterator<T, Node>::pointer deque_iterator<T, Node>::operator -> (void) const {
return _elem;
}
template <typename T, typename Node>
deque_iterator<T, Node> deque_iterator<T, Node>::operator ++ (int) {
deque_iterator copy(*this);
if (_elem && _elem != _base->_right)
_elem++;
else if (_elem && _elem == _base->_right) {
_base = _base->_next;
_elem = _base->_left;
}
else {
_base = _base->_next;
_elem = _base->_left;
}
return copy;
}
template <typename T, typename Node>
deque_iterator<T, Node>& deque_iterator<T, Node>::operator ++ (void) {
if (_elem && _elem != _base->_right)
_elem++;
else if (_elem && _elem == _base->_right) {
_base = _base->_next;
_elem = _base->_left;
}
else {
_base = _base->_next;
_elem = _base->_left;
}
return *this;
}
template <typename T, typename Node>
deque_iterator<T, Node> deque_iterator<T, Node>::operator -- (int) {
deque_iterator copy(*this);
if (_elem && _elem != _base->_left)
_elem--;
else if (_elem && _elem == _base->_left) {
_base = _base->_prev;
_elem = _base->_right;
}
else {
_base = _base->_prev;
_elem = _base->_right;
}
return copy;
}
template <typename T, typename Node>
deque_iterator<T, Node>& deque_iterator<T, Node>::operator -- (void) {
if (_elem && _elem != _base->_left)
_elem--;
else if (_elem && _elem == _base->_left) {
_base = _base->_prev;
_elem = _base->_right;
}
else {
_base = _base->_prev;
_elem = _base->_right;
}
return *this;
}
template <typename T, typename Node>
deque_iterator<T, Node> deque_iterator<T, Node>::operator + (difference_type diff) const {
deque_iterator copy(*this);
difference_type offset = _base->_right - _elem;
if (offset >= diff)
copy._elem = _elem + diff;
else {
diff -= offset;
copy._base = copy._base->_next;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
copy._base = copy._base->_next;
if (_base == _null) {
copy._elem = nullptr;
return copy;
}
}
copy._elem = copy._base->_left + diff - 1;
}
return copy;
}
template <typename T, typename Node>
deque_iterator<T, Node> deque_iterator<T, Node>::operator - (difference_type diff) const {
deque_iterator copy(*this);
difference_type offset = _elem - _base->_left;
if (offset >= diff)
copy._elem = _elem - diff;
else {
diff -= offset;
copy._base = copy._base->_prev;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
copy._base = copy._base->_prev;
if (_base == _null) {
copy._elem = nullptr;
return copy;
}
}
copy._elem = copy._base->_right - diff + 1;
}
return copy;
}
template <typename T, typename Node>
deque_iterator<T, Node>& deque_iterator<T, Node>::operator += (difference_type diff) {
difference_type offset = _base->_right - _elem;
if (offset >= diff)
_elem = _elem + diff;
else {
diff -= offset;
_base = _base->_next;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
_base = _base->_next;
if (_base == _null) {
_elem = nullptr;
return *this;
}
}
_elem = _base->_left + diff - 1;
}
return *this;
}
template <typename T, typename Node>
deque_iterator<T, Node>& deque_iterator<T, Node>::operator -= (difference_type diff) {
difference_type offset = _elem - _base->_left;
if (offset >= diff)
_elem = _elem - diff;
else {
diff -= offset;
_base = _base->_prev;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
_base = _base->_prev;
if (_base == _null) {
_elem = nullptr;
return *this;
}
}
_elem = _base->_right - diff + 1;
}
return *this;
}
template <typename T, typename Node>
const typename deque_iterator<T, Node>::iterator& deque_iterator<T, Node>::base(void) const {
return _base;
}
template <typename T, typename Node>
const typename deque_iterator<T, Node>::pointer& deque_iterator<T, Node>::elem(void) const {
return _elem;
}
template <typename T, typename Node>
const typename deque_iterator<T, Node>::iterator& deque_iterator<T, Node>::null(void) const {
return _null;
}
template <typename T, typename Node>
class const_deque_iterator {
public:
typedef Node* iterator;
typedef T value_type;
typedef T* pointer;
typedef T& reference;
typedef std::ptrdiff_t difference_type;
typedef std::bidirectional_iterator_tag iterator_category;
const_deque_iterator(const iterator& base = iterator(), const pointer& elem = pointer(), const iterator& null = iterator());
const_deque_iterator(const const_deque_iterator& other);
const_deque_iterator(const deque_iterator<T, Node>& other);
~const_deque_iterator();
const_deque_iterator& operator = (const const_deque_iterator& other);
const_deque_iterator& operator = (const deque_iterator<T, Node>& other);
reference operator * (void) const;
pointer operator -> (void) const;
const_deque_iterator operator ++ (int);
const_deque_iterator& operator ++ (void);
const_deque_iterator operator -- (int);
const_deque_iterator& operator -- (void);
const_deque_iterator operator + (difference_type diff) const;
const_deque_iterator operator - (difference_type diff) const;
const_deque_iterator& operator += (difference_type diff);
const_deque_iterator& operator -= (difference_type diff);
const iterator& base(void) const;
const pointer& elem(void) const;
const iterator& null(void) const;
iterator _base;
pointer _elem;
iterator _null;
};
template <typename T, typename Node>
const_deque_iterator<T, Node>::const_deque_iterator(const iterator& base, const pointer& elem, const iterator& null) : _base(base), _elem(elem), _null(null) { }
template <typename T, typename Node>
const_deque_iterator<T, Node>::const_deque_iterator(const const_deque_iterator& other) : _base(other.base()), _elem(other.elem()), _null(other.null()) { }
template <typename T, typename Node>
const_deque_iterator<T, Node>::const_deque_iterator(const deque_iterator<T, Node>& other) : _base(other.base()), _elem(other.elem()), _null(other.null()) { }
template <typename T, typename Node>
const_deque_iterator<T, Node>::~const_deque_iterator() { }
template <typename T, typename Node>
const_deque_iterator<T, Node>& const_deque_iterator<T, Node>::operator = (const const_deque_iterator& other) {
if (*this != other) {
_base = other.base();
_elem = other.elem();
_null = other.null();
}
return *this;
}
template <typename T, typename Node>
const_deque_iterator<T, Node>& const_deque_iterator<T, Node>::operator = (const deque_iterator<T, Node>& other) {
if (*this != other) {
_base = other.base();
_elem = other.elem();
_null = other.null();
}
return *this;
}
template <typename T, typename Node>
typename const_deque_iterator<T, Node>::reference const_deque_iterator<T, Node>::operator * (void) const {
return *_elem;
}
template <typename T, typename Node>
typename const_deque_iterator<T, Node>::pointer const_deque_iterator<T, Node>::operator -> (void) const {
return _elem;
}
template <typename T, typename Node>
const_deque_iterator<T, Node> const_deque_iterator<T, Node>::operator ++ (int) {
const_deque_iterator copy(*this);
if (_elem && _elem != _base->_right)
_elem++;
else if (_elem && _elem == _base->_right) {
_base = _base->_next;
_elem = _base->_left;
}
else {
_base = _base->_next;
_elem = _base->_left;
}
return copy;
}
template <typename T, typename Node>
const_deque_iterator<T, Node>& const_deque_iterator<T, Node>::operator ++ (void) {
if (_elem && _elem != _base->_right)
_elem++;
else if (_elem && _elem == _base->_right) {
_base = _base->_next;
_elem = _base->_left;
}
else {
_base = _base->_next;
_elem = _base->_left;
}
return *this;
}
template <typename T, typename Node>
const_deque_iterator<T, Node> const_deque_iterator<T, Node>::operator -- (int) {
const_deque_iterator copy(*this);
if (_elem && _elem != _base->_left)
_elem--;
else if (_elem && _elem == _base->_left) {
_base = _base->_prev;
_elem = _base->_right;
}
else {
_base = _base->_prev;
_elem = _base->_right;
}
return copy;
}
template <typename T, typename Node>
const_deque_iterator<T, Node>& const_deque_iterator<T, Node>::operator -- (void) {
if (_elem && _elem != _base->_left)
_elem--;
else if (_elem && _elem == _base->_left) {
_base = _base->_prev;
_elem = _base->_right;
}
else {
_base = _base->_prev;
_elem = _base->_right;
}
return *this;
}
template <typename T, typename Node>
const_deque_iterator<T, Node> const_deque_iterator<T, Node>::operator + (difference_type diff) const {
const_deque_iterator copy(*this);
difference_type offset = _base->_right - _elem;
if (offset >= diff)
copy._elem = _elem + diff;
else {
diff -= offset;
copy._base = copy._base->_next;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
copy._base = copy._base->_next;
if (_base == _null) {
copy._elem = nullptr;
return copy;
}
}
copy._elem = copy._base->_left + diff - 1;
}
return copy;
}
template <typename T, typename Node>
const_deque_iterator<T, Node> const_deque_iterator<T, Node>::operator - (difference_type diff) const {
const_deque_iterator copy(*this);
difference_type offset = _elem - _base->_left;
if (offset >= diff)
copy._elem = _elem - diff;
else {
diff -= offset;
copy._base = copy._base->_prev;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
copy._base = copy._base->_prev;
if (_base == _null) {
copy._elem = nullptr;
return copy;
}
}
copy._elem = copy._base->_right - diff + 1;
}
return copy;
}
template <typename T, typename Node>
const_deque_iterator<T, Node>& const_deque_iterator<T, Node>::operator += (difference_type diff) {
difference_type offset = _base->_right - _elem;
if (offset >= diff)
_elem = _elem + diff;
else {
diff -= offset;
_base = _base->_next;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
_base = _base->_next;
if (_base == _null) {
_elem = nullptr;
return *this;
}
}
_elem = _base->_left + diff - 1;
}
return *this;
}
template <typename T, typename Node>
const_deque_iterator<T, Node>& const_deque_iterator<T, Node>::operator -= (difference_type diff) {
difference_type offset = _elem - _base->_left;
if (offset >= diff)
_elem = _elem - diff;
else {
diff -= offset;
_base = _base->_prev;
while (diff > _base->_capacity) {
diff -= _base->_capacity;
_base = _base->_prev;
if (_base == _null) {
_elem = nullptr;
return *this;
}
}
_elem = _base->_right - diff + 1;
}
return *this;
}
template <typename T, typename Node>
const typename const_deque_iterator<T, Node>::iterator& const_deque_iterator<T, Node>::base(void) const {
return _base;
}
template <typename T, typename Node>
const typename const_deque_iterator<T, Node>::pointer& const_deque_iterator<T, Node>::elem(void) const {
return _elem;
}
template <typename T, typename Node>
const typename const_deque_iterator<T, Node>::iterator& const_deque_iterator<T, Node>::null(void) const {
return _null;
}
template <typename _T, typename _Node>
bool operator == (const deque_iterator<_T, _Node>& lhs, const deque_iterator<_T, _Node>& rhs) {
return (lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator != (const deque_iterator<_T, _Node>& lhs, const deque_iterator<_T, _Node>& rhs) {
return !(lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator == (const const_deque_iterator<_T, _Node>& lhs, const const_deque_iterator<_T, _Node>& rhs) {
return (lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator != (const const_deque_iterator<_T, _Node>& lhs, const const_deque_iterator<_T, _Node>& rhs) {
return !(lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator == (const const_deque_iterator<_T, _Node>& lhs, const deque_iterator<_T, _Node>& rhs) {
return (lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator != (const const_deque_iterator<_T, _Node>& lhs, const deque_iterator<_T, _Node>& rhs) {
return !(lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator == (const deque_iterator<_T, _Node>& lhs, const const_deque_iterator<_T, _Node>& rhs) {
return (lhs.elem() == rhs.elem());
}
template <typename _T, typename _Node>
bool operator != (const deque_iterator<_T, _Node>& lhs, const const_deque_iterator<_T, _Node>& rhs) {
return !(lhs.elem() == rhs.elem());
}
template <typename T, typename Allocator = std::allocator<T> >
class deque {
public:
typedef T value_type;
private:
typedef deque_node<value_type> node_type;
typedef deque_node<value_type>* link_type;
public:
typedef typename node_type::pointer pointer;
typedef typename node_type::const_pointer const_pointer;
typedef typename node_type::reference reference;
typedef typename node_type::const_reference const_reference;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef typename Allocator::template rebind<node_type>::other allocator_type;
typedef deque_iterator<value_type, node_type> iterator;
typedef const_deque_iterator<value_type, node_type> const_iterator;
typedef ft::reverse_iterator<iterator> reverse_iterator;
typedef ft::reverse_iterator<const_iterator> const_reverse_iterator;
explicit deque(const allocator_type& alloc = allocator_type());
explicit deque(size_type n, const value_type& val = value_type(), const allocator_type& alloc = allocator_type());
template <class InputIterator>
deque(InputIterator first, InputIterator last, const allocator_type& alloc = allocator_type());
deque(const deque& x);
~deque();
deque& operator = (const deque& x);
iterator begin(void);
const_iterator begin(void) const;
iterator end(void);
const_iterator end(void) const;
reverse_iterator rbegin(void);
const_reverse_iterator rbegin(void) const;
reverse_iterator rend(void);
const_reverse_iterator rend(void) const;
size_type size(void) const;
size_type max_size(void) const;
void resize(size_type n, value_type val = value_type());
bool empty(void) const;
void shrink_to_fit(void);
reference operator [] (size_type n);
const_reference operator [] (size_type n) const;
reference at(size_type n);
const_reference at(size_type n) const;
reference front(void);
const_reference front(void) const;
reference back(void);
const_reference back(void) const;
template <class InputIterator>
void assign(InputIterator first, InputIterator last);
void assign(size_type n, const value_type& val);
void push_back (const value_type& val);
void push_front (const value_type& val);
void pop_back(void);
void pop_front(void);
template <class InputIterator>
void insert(iterator position, InputIterator first, InputIterator last);
iterator insert(iterator position, const value_type& val);
void insert(iterator position, size_type n, const value_type& val);
iterator erase(iterator position);
iterator erase(iterator first, iterator last);
void swap(deque& x);
void clear(void);
allocator_type get_allocator(void);
private:
template <typename _Iterator>
void __assign(_Iterator first, _Iterator last, ft::false_type);
template <typename _Integer>
void __assign(_Integer n, const _Integer& val, ft::true_type);
template <typename _Iterator>
void __insert(iterator position, _Iterator first, _Iterator last, ft::false_type);
template <typename _Integer>
void __insert(iterator position, _Integer n, const _Integer& val, ft::true_type);
void _node_push_back(void);
void _node_push_front(void);
void _node_pop_back(void);
void _node_pop_front(void);
size_type _size;
link_type _null;
allocator_type _node_alloc;
};
template <typename T, typename Allocator>
deque<T, Allocator>::deque(const allocator_type& alloc) : _size(0), _node_alloc(alloc) {
_null = _node_alloc.allocate(1);
_node_alloc.construct(_null);
_null->_next = _null;
_null->_prev = _null;
}
template <typename T, typename Allocator>
deque<T, Allocator>::deque(size_type n, const value_type& val, const allocator_type& alloc) : _node_alloc(alloc) {
_null = _node_alloc.allocate(1);
_node_alloc.construct(_null);
_null->_next = _null;
_null->_prev = _null;
assign(n, val);
}
template <typename T, typename Allocator>
template <class InputIterator>
deque<T, Allocator>::deque(InputIterator first, InputIterator last, const allocator_type& alloc) : _node_alloc(alloc) {
_null = _node_alloc.allocate(1);
_node_alloc.construct(_null);
_null->_next = _null;
_null->_prev = _null;
typedef typename ft::is_integral<InputIterator>::type _Type;
__assign(first, last, _Type());
}
template <typename T, typename Allocator>
deque<T, Allocator>::deque(const deque& x) {
_null = _node_alloc.allocate(1);
_node_alloc.construct(_null);
_null->_next = _null;
_null->_prev = _null;
__assign(x.begin(), x.end(), ft::false_type());
}
template <typename T, typename Allocator>
deque<T, Allocator>::~deque() {
clear();
_node_alloc.destroy(_null);
_node_alloc.deallocate(_null, 1);
}
template <typename T, typename Allocator>
deque<T, Allocator>& deque<T, Allocator>::operator = (const deque& x) {
__assign(x.begin(), x.end(), ft::false_type());
return *this;
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::iterator deque<T, Allocator>::begin() {
return iterator(_null->_next, _null->_next->_left, _null);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_iterator deque<T, Allocator>::begin() const {
return const_iterator(_null->_next, _null->_next->_left, _null);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::iterator deque<T, Allocator>::end() {
return iterator(_null, nullptr, _null);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_iterator deque<T, Allocator>::end() const {
return const_iterator(_null, nullptr, _null);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::reverse_iterator deque<T, Allocator>::rbegin() {
return reverse_iterator(end());
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_reverse_iterator deque<T, Allocator>::rbegin() const {
return const_reverse_iterator(end());
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::reverse_iterator deque<T, Allocator>::rend() {
return reverse_iterator(begin());
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_reverse_iterator deque<T, Allocator>::rend() const {
return const_reverse_iterator(begin());
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::size_type deque<T, Allocator>::size() const {
return _size;
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::size_type deque<T, Allocator>::max_size() const {
return _node_alloc.max_size() > __LONG_LONG_MAX__ ? __LONG_LONG_MAX__ : _node_alloc.max_size();
}
template <typename T, typename Allocator>
void deque<T, Allocator>::resize(size_type n, value_type val) {
while (n > _size)
push_back(val);
while (n < _size)
pop_back();
}
template <typename T, typename Allocator>
bool deque<T, Allocator>::empty() const {
return _size ? false : true;
}
template <typename T, typename Allocator>
void deque<T, Allocator>::shrink_to_fit(void) {
return ;
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::reference deque<T, Allocator>::operator [] (size_type n) {
link_type node = _null->_next;
difference_type offset = node->_right_border - node->_left;
if (static_cast<size_type>(offset) >= n)
return *(node->_left + n);
n -= offset;
node = node->_next;
while (n > node->_capacity) {
n -= node->_capacity;
node = node->_next;
}
return *(node->_left_border + n - 1);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_reference deque<T, Allocator>::operator [] (size_type n) const {
link_type node = _null->_next;
difference_type offset = node->_right_border - node->_left;
if (static_cast<size_type>(offset) < n) {
n -= offset;
node = node->_next;
}
while (n > node->_capacity) {
n -= node->_capacity;
node = node->_next;
}
return *(node->_left + n);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::reference deque<T, Allocator>::at(size_type n) {
if (n >= _size)
throw std::out_of_range("deque");
return operator[](n);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_reference deque<T, Allocator>::at(size_type n) const {
if (n >= _size)
throw std::out_of_range("deque");
return operator[](n);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::reference deque<T, Allocator>::front() {
return *(_null->_next->_left);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_reference deque<T, Allocator>::front() const {
return *(_null->_next->_left);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::reference deque<T, Allocator>::back() {
return *(_null->_prev->_right);
}
template <typename T, typename Allocator>
typename deque<T, Allocator>::const_reference deque<T, Allocator>::back() const {
return *(_null->_prev->_right);
}
template <typename T, typename Allocator>
template <class InputIterator>
void deque<T, Allocator>::assign(InputIterator first, InputIterator last) {
typedef typename ft::is_integral<InputIterator>::type _Type;
__assign(first, last, _Type());
}
template <typename T, typename Allocator>
void deque<T, Allocator>::assign(size_type n, const value_type& val) {
clear();
for (size_type i = 0; i < n; ++i)
push_back(val);
}
template <typename T, typename Allocator>
template <typename _Iterator>
void deque<T, Allocator>::__assign(_Iterator first, _Iterator last, ft::false_type) {
clear();
for (; first != last; ++first)
push_back(*first);
}
template <typename T, typename Allocator>
template <typename _Integer>
void deque<T, Allocator>::__assign(_Integer n, const _Integer& val, ft::true_type) {
assign(static_cast<size_type>(n), val);
}
template <typename T, typename Allocator>
void deque<T, Allocator>::push_back (const value_type& val) {
if (_null->_prev == _null || _null->_prev->_right == _null->_prev->_right_border)
_node_push_back();
_null->_prev->add_back(val);
_size++;
}
template <typename T, typename Allocator>
void deque<T, Allocator>::push_front (const value_type& val) {
if (_null->_next == _null || _null->_next->_left == _null->_next->_left_border)
_node_push_front();
_null->_next->add_front(val);