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ReverseIte.hpp
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ReverseIte.hpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mli <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/01/09 18:56:40 by mli #+# #+# */
/* Updated: 2021/02/21 14:31:11 by mli ### ########.fr */
/* */
/* ************************************************************************** */
#ifndef REVERSEITE_CLASS_HPP
# define REVERSEITE_CLASS_HPP
# include "base.hpp"
# include "RandomIte.hpp"
namespace ft {
template <class Iterator>
class reverse_iterator {
protected:
typedef Iterator super;
Iterator _base;
public:
typedef Iterator iterator_type;
typedef typename super::difference_type difference_type;
typedef typename super::reference reference;
typedef typename super::pointer pointer;
reverse_iterator(void);
explicit reverse_iterator(Iterator x);
template <class U> reverse_iterator(const reverse_iterator<U> &u);
template <class U> reverse_iterator &operator=(const reverse_iterator<U> &u);
Iterator base(void) const { return this->_base; };
reference operator*(void) const { return (--super(this->_base)).operator*(); };
pointer operator->(void) const { return &this->operator*(); };
reverse_iterator &operator++(void) { this->_base.operator--(); return *this; };
reverse_iterator operator++(int) { return reverse_iterator(this->_base.operator--(0)); };
reverse_iterator &operator--(void) { this->_base.operator++(); return *this; };
reverse_iterator operator--(int) { return reverse_iterator(this->_base.operator++(0)); };
template <class U>
difference_type operator-(const reverse_iterator<U> &u) { return u.base().operator-(this->_base); };
reverse_iterator operator+ (difference_type n) const { return reverse_iterator(this->_base.operator-(n)); };
reverse_iterator &operator+=(difference_type n) { this->_base.operator-=(n); return *this; };
reverse_iterator operator- (difference_type n) const { return reverse_iterator(this->_base.operator+(n)); };
reverse_iterator &operator-=(difference_type n) { this->_base.operator+=(n); return *this; };
reference operator[](difference_type n) const { return *this->operator+(n); };
friend reverse_iterator operator+(difference_type n, const reverse_iterator &rhs)
{ return rhs.operator+(n); };
template <class U> bool operator==(const reverse_iterator<U> &rhs) const { return this->_base.operator==(rhs.base()); };
template <class U> bool operator!=(const reverse_iterator<U> &rhs) const { return this->_base.operator!=(rhs.base()); };
template <class U> bool operator< (const reverse_iterator<U> &rhs) const { return this->_base.operator> (rhs.base()); };
template <class U> bool operator<=(const reverse_iterator<U> &rhs) const { return this->_base.operator>=(rhs.base()); };
template <class U> bool operator> (const reverse_iterator<U> &rhs) const { return this->_base.operator< (rhs.base()); };
template <class U> bool operator>=(const reverse_iterator<U> &rhs) const { return this->_base.operator<=(rhs.base()); };
}; // ************************************************** class ReverseIte end //
template <class Iterator>
reverse_iterator<Iterator>::reverse_iterator(void) : _base() { };
template <class Iterator>
reverse_iterator<Iterator>::reverse_iterator(Iterator x) : _base(x) { };
template <class Iterator> template <class U>
reverse_iterator<Iterator>::reverse_iterator(const reverse_iterator<U> &u) : _base(u.base()) { };
template <class Iterator> template <class U>
reverse_iterator<Iterator> &reverse_iterator<Iterator>::operator=(const reverse_iterator<U> &u) {
if (reinterpret_cast<const void *>(this) == reinterpret_cast<const void *>(&u))
return (*this);
this->_base = u.base();
return (*this);
};
} // ******************************************************* ft namespace end //
#endif // ****************************************** REVERSEITE_CLASS_HPP end //