cppArrPointerConnection

#include <iostream>

int main()
{
    const int arrSize{ 10 };
    int arr[arrSize]{1,2,3,4,5,6,7,8,9,10};
    //[****][****][****][****][****][****][****][****][****][****]
    // arr => 100
    // &arr[0] => 100
    // &arr[1] => 104

    // arr + 1 => 100 + 1 => 100 + sizeof(int) * 1 => 100 + 4 * 1 => 104
    // arr + 3 -> 100 + 3 => 100 + sizeof(int) * 3 -> 100 + 4 * 3 => 112
    // &arr[3] => 112 - 2 => 112 - sizeof(int) * 2 -> 112 - 4 * 2 => 104
    std::cout << "arr[0] value:\t" << arr[0] << "\tarr[0] address:\t" << &arr[0] << "\tarr value\t" << arr << '\n';

    int num{ 42 };//[42 0 0 0][? ? ? ?]

    arr[0] = 123;
    // arr -> &arr[0]
    // *arr -> *(&arr[0]) -> *arr -> arr[0]
    // arr + 1 -> &arr[1]
    // *(arr +1) -> arr[1]
    //
    // *( arr + i ) => arr[i]
    // ( arr + i ) => &arr[i]

    int* ptrI{arr};
    ptrI++; // ???
    std::cout << *ptrI << '\n';
    bool* ptrB{};
    double* ptrD{};

    std::cout << "ptrI value:\t" << ptrI << "\t*ptrI:\t" << *ptrI << '\n';

    *ptrI = 456;

    std::cout << "arr[0] value:\t" << arr[0] << "\tarr[0] address:\t" << &arr[0] << "\tarr value\t" << arr << '\n';


    std::cout << "Is pointers equal? " << ((arr + 1) == ptrI) << '\n';

    std::cout << sizeof(int) << ' ' << sizeof(double) << ' ' << sizeof(bool) << '\n';

    return 0;
}