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vector_iterator.h
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vector_iterator.h
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//
// Created by chris on 21-Apr-18.
//
#ifndef POO_TEMA2_2_VECTOR_ITERATOR_H
#define POO_TEMA2_2_VECTOR_ITERATOR_H
#include "vector"
namespace util {
template<typename T>
class iterator {
friend class vector<T>;
private:
T *mPtr;
int mIndex;
iterator() {
mPtr = nullptr;
}
iterator(const vector<T> &vect) {
*this = vect.begin();
}
iterator(const vector<T> &vect, T *ptr) {
mPtr = ptr;
mIndex = ptr - vect.vect;
}
public:
iterator(const iterator &other) {
*this = other;
}
~iterator() {}
T &operator*() {
return *mPtr;
}
T *operator->() {
return mPtr;
}
iterator &operator=(const iterator &other) {
mPtr = other.mPtr;
mIndex = other.mIndex;
return *this;
}
iterator &operator++() {
++mPtr;
++mIndex;
return *this;
}
iterator operator++(int) {
iterator it = *this;
++(*this);
return it;
}
iterator &operator--() {
--mPtr;
--mIndex;
return *this;
}
iterator operator--(int) {
iterator it = *this;
--(*this);
return it;
}
bool operator==(const iterator &other) const {
return mIndex == other.mIndex;
}
bool operator!=(const iterator &other) const {
return mIndex < other.mIndex;
}
bool operator<(const iterator &other) const {
return mIndex < other.mIndex;
}
};
}
#endif //POO_TEMA2_2_VECTOR_ITERATOR_H