pointerPractice

#include <iostream>


void print(const int* begin, const int* end)
{
    while (begin != end)
    {
        std::cout << *(begin++) << ' ';
    }
    std::cout << '\n';
}

int main()
{
    int num{ 1 };
    const int arrSize{ 5 };
    int arr[arrSize]{ 1,2,3,4,5 }; //[100(1)][104(2)][108(3)][112(4)][116(5)]// int* const
    bool arrB[arrSize]{ true,true,false,false,true }; //[200][201][202][203][204]


    print(arr+2, arr + 4);
    int* ptrI{};
    //ptrI = &num;
    //ptrI = new int;
    ptrI = arr + 3; //100 + sizeof(int) * 3 = 100 + 4 * 3 = 112

    std::cout << (ptrI != arr) << '\n';

    std::cout << (int)arr - (int)ptrI << '\n'; //12 / sizeof(int) = 12 /4 -> 3


    std::cout << *(ptrI) << '\n'; //112(4)
    *(ptrI - 1) = 333;
    std::cout << *(ptrI - 1) << '\n'; // 112 - sizeof(int) * 1 = 112 - 4 * 1 = 108(3)
    std::cout << *(--ptrI) << '\n'; // 108

    std::cout << ptrI[0] << '\n'; // 108 - sizeof(int) * 1 = 108 - 4 * 1 = 104(2)
    std::cout << *ptrI << '\n';
    std::cout << *(ptrI + 0) << '\n';

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


    //ptrI+=1; //116 ptrI = ptrI + 1
  //  ptrI -= 2; // 112 - sizeof(int) * 2 -> 112 - 4 * 2 -> 112 -8 = 104
    return 0;
//    ptrI = new int[5];


    arr[0] = 333;


    //print(arr, arrSize);
    //print(arr, arrSize);


    int val{ 12 };
    val = 45;

    const int answer{42};


    float temp{ 12.0 };
    char symb{ 'a' };
 //   const int* ptrI{ &val };
    int* const cPtrI{ &val };
    const int* const zPtrI{ &answer };

    std::cout << zPtrI << '\n';
    std::cout << *zPtrI << '\n';

    //*zPtrI = 13;
    //zPtrI = &val;

    //*cPtrI = 13;
    //cPtrI = &num;

    std::cout << *cPtrI << '\n';
    std::cout << cPtrI << '\n';

    //ptrI = &answer;
    //*ptrI = 13;
    std::cout << ptrI << '\n';

    ptrI = &val;
 //   *ptrI = 13;

    float* ptrF{ &temp };

 //   std::cout << *((int*)ptrV) << '\n';
    std::cout << val << '\n';

    return 0;
}