PV024arr2DSimpleExample

#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* ptrInt{ nullptr };
    bool* ptrBool{ nullptr };
    float* ptrFloat{ nullptr };
    char* ptrChar{ nullptr };


    ptrInt = new int{ 33 };
    ptrBool = new bool[3]{ true,false,true };
    ptrFloat = new float{ 42.1 };
    ptrChar = new char[10]{ 'H','e','l','l','o','!' };

    //arr[i] <=> *(arr+i)

    ptrBool[1] = true;
    *(ptrBool + 1) = true;
    *ptrInt = 44;
    ptrInt[0] = 44;

    delete ptrInt;
    delete[] ptrBool;
    delete ptrFloat;
    delete[] ptrChar;

    ptrInt = &num;
    //delete ptrInt;

    return 0;
}