Vector.h

#ifndef VECTOR_H
#define VECTOR_H

#include <iostream>
#include <new>
#include <stdbool.h>

using namespace std;

template <class T>
class Vector
{
    public:
        int* arr = new int[DEFAULT_CAPACITY];

        if (arr == nullptr) {
            cout << "Error: memory could not be allocated";
        }

        void incrementarr() {
            int n = sizeof(arr);
            int* controlarr = new int[n + 1];
            for (int i = 0; i < n; i++) {
                controlarr[i] = arr[i];
            }
            size++;
            arr = controlarr;
            delete[] controlarr;
        }

        void clearArray() {
            for (int i = 0; i < sizeof(arr); i++) {
                arr[i] = nullptr;
            }
            size = 0;
            delete[] arr;
        }

    private:
        const static int DEFAULT_CAPACITY = 50;
        int size = sizeof(arr); //keeping track of number of elements in use
};
#endif