| 6 | template<typename T> |
| 7 | class Vector{ |
| 8 | class VectorIterator { |
| 9 | friend class Vector; |
| 10 | protected: |
| 11 | size_t pos = 0; |
| 12 | const Vector<T>& vector; |
| 13 | public: |
| 14 | VectorIterator(const Vector<T>& newVector) : vector(newVector) {}; |
| 15 | VectorIterator(const VectorIterator& it) : vector(it.vector) { pos = it.pos; }; |
| 16 | |
| 17 | VectorIterator& operator++(){ |
| 18 | pos++; |
| 19 | return *this; |
| 20 | } |
| 21 | |
| 22 | VectorIterator& operator=(const VectorIterator& other){ |
| 23 | VectorIterator(other.vector); |
| 24 | |
| 25 | pos = other.pos; |
| 26 | |
| 27 | return *this; |
| 28 | } |
| 29 | |
| 30 | T& operator*() const{ |
| 31 | return vector.data[pos]; |
| 32 | } |
| 33 | |
| 34 | T* operator->() const{ |
| 35 | return &vector.data[pos]; |
| 36 | } |
| 37 | |
| 38 | friend bool operator==(const VectorIterator& l, const VectorIterator& r){ |
| 39 | if(l.pos == r.pos){ |
| 40 | return true; |
| 41 | } else { |
| 42 | return false; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | friend bool operator!=(const VectorIterator& l, const VectorIterator& r){ |
| 47 | if(l.pos != r.pos){ |
| 48 | return true; |
| 49 | } else { |
| 50 | return false; |
| 51 | } |
| 52 | } |
| 53 | }; |
| 54 | private: |
| 55 | T* data = nullptr; |
| 56 | size_t count = 0; |