PV913Destructors

#include <iostream>

class DynArray
{
    int* arr;
    int size;
public:
    DynArray(int pSize) : arr{ new int[pSize] {} }, size{ pSize } {std::cout << "DynArr constructed for " << size << " elements!\n"; };
    int getElem(int idx) { return arr[idx]; };
    void setElem(int idx, int val) { arr[idx] = val; };
    void print();
    ~DynArray() { if (arr) { delete[] arr; }; std::cout << "DynArr destructed for " << size << " elements!\n"; };
};

void DynArray::print()
{
    for (int i{ 0 }; i < size; ++i)
    {
        std::cout << arr[i] << ' ';
    }
    std::cout << '\n';
}

void testFun()
{
    DynArray funMas{ 11 };
    funMas.print();
    funMas.setElem(6, 867);
    funMas.print();
}

int main()
{
    //int x{ 5 };
    //x = 25;
    //std::cout << x << '\n';


    //int* y{ new int{6} };
    //*y = 36;
    //std::cout << *y << '\n';
    //delete y;

    DynArray arr1{ 8 };
    arr1.print();
    arr1.setElem(5, 87);
    arr1.print();


    //DynArray* mas{ new DynArray{ 5 } };
    //(*mas).print();
    //(*mas).setElem(3, 55);
    //(*mas).print();
    //delete mas;

    std::cout << "Pre testFun\n";
    testFun();
    std::cout << "Post testFun\n";
}