PV024PointersBasics

#include <iostream>

int max(int a, int b)
{
    static int flag{};

    return a > b ? a : b;
}

int main()
{
    int numI{ 42 };
    float numF{ 42.0 };


    for (int i{ 0 }; i < 4; ++i)
    {
        std::cout << "numI[" << i << "]" << (int)((uint8_t*)&numI)[i] << "\n";
    }

    for (int i{ 0 }; i < 4; ++i)
    {
        std::cout << "numF[" << i << "]" << (int)((uint8_t*)&numF)[i] << "\n";
    }
    //int num{ 42 };
    //int otherNum{ 32 };

    //float temp{ 42.0 };

    //int* ptr{ &num };
    //float* ptrFl{ &temp };

    //char symb{ 'A' };
    //char* ptrCh{ &symb };

    //std::cout << "Value of *ptr = " << *ptr << '\n'; //42
    //ptr = (int*)&symb;

    //std::cout << "Value of ptr = " << ptr << '\n'; //XX the same!!
    //std::cout << "Value of ptrCh = " << (int*)ptrCh << '\n';//XX the same!!

    //std::cout << "Value of *ptr = " << *ptr << '\n'; //42???
    //std::cout << "Value of *ptrCh = " << *ptrCh << '\n'; // 42

    //return 0;

    /*std::cout << "Enter some number";
    std::cin >> *ptr;
    std::cout << "Value of num = " << *ptr << '\n';
    std::cout << "Value of num = " << num << '\n';

    *ptr += 10;
    std::cout << "Value of num = " << *ptr << '\n';
    std::cout << "Value of num = " << num << '\n';

    ptr = &otherNum;

    std::cout << "Enter some number";
    std::cin >> *ptr;
    std::cout << "Value of num = " << *ptr << '\n';
    std::cout << "Value of num = " << num << '\n';

    *ptr += 10;
    std::cout << "Value of num = " << *ptr << '\n';
    std::cout << "Value of num = " << num << '\n';*/


    //int x{ 42 };
    //int y{ 65 };

    //bool flag{ true };
    //const int arrSize{ 5 };
    //char arr[arrSize];
    //double number{ 333.33 };

    //int* ptrI{&x};
    //std::cout << "Addr of x is " << &x << " ptrI = " << ptrI << " *ptrI = " << *ptrI << '\n';
    //ptrI = &y;
    //*ptrI = 456;
    //std::cout << *ptrI << '\n';

    //std::cout << "Addr of x is " << &x << " ptrI = " << ptrI << " *ptrI = " << *ptrI << '\n';
    //std::cout << "Addr of y is " << &y << " ptrI = " << ptrI << " *ptrI = " << *ptrI << '\n';

    //return 0;
    //bool* ptrB{ &flag };
    //const int* ptrCI{ &arrSize };
    //double* ptrD{ &number };

    //*ptrI = 333;
    //
    //std::cout << " x = " << x << '\n';

    //std::cout <<"Addr of x is " << &x << " ptrI = " << ptrI << " *ptrI = " << *ptrI << '\n';
    ////std::cout << "Addr of flag is " << &flag << " ptrB = " << ptrB << " *ptrB = " << *ptrB << '\n';
    /////std::cout << "Addr of arrSize is " << &arrSize << " ptrCI = " << ptrCI << " *ptrCI = " << *ptrCI << '\n';
    ////std::cout << "Addr of number is " << &number << " ptrB = " << ptrB << " *ptrB = " << *ptrB << '\n';

    return 0;
}