PV024DynMemBasics

#include <iostream>


int* createInt()
{
    int* ptr{ nullptr };
    ptr = new int{42};

    std::cout << "ptr = " << ptr << " *ptr = " << *ptr << '\n';

    *ptr = 38;

    std::cout << "ptr = " << ptr << " *ptr = " << *ptr << '\n';

    return ptr;
}


int main()
{
    //int num{ 33 };
    int* pointToInt{ nullptr };

    pointToInt = createInt();

    std::cout << "pointToInt = " << pointToInt << " *pointToInt = " << *pointToInt << '\n';
    ++pointToInt;
    std::cout << "pointToInt = " << pointToInt << " *pointToInt = " << *pointToInt << '\n';

//  *pointToInt = 7777;

    std::cout << "pointToInt = " << pointToInt << " *pointToInt = " << *pointToInt << '\n';

    --pointToInt;
    std::cout << "pointToInt = " << pointToInt << " *pointToInt = " << *pointToInt << '\n';

    delete pointToInt;


    int arrSize{ 5 };
    //std::cin >> arrSize;
    //int arr[arrSize]{ 11,22,33,44,55 };
    //pointToInt = arr;

    //pointToInt = new int{ 11 };
    //pointToInt = new int[arrSize]{1,2,3,4,5};
    *pointToInt = 66;

    //for (int i{ 0 }; i < arrSize; ++i)
    //{
    //  std::cout << "pointToInt = " << (pointToInt + i) << " *pointToInt = " << *(pointToInt + i) << '\n';
    //}


    delete pointToInt;

    return 0;
}