pointer_2.cpp

#include <iostream>
#include <string>

int main()
{

    int arr[4] = {2, 4, 8, 16};
    int *ptr_arr = &arr[0];
    size_t lengthOfArray = sizeof(arr) / sizeof(arr[0]);

    for (int i = 0; i < lengthOfArray; i++)
    {

        std::cout << "value : " << arr[i] << " : "
                  << "address : " << &arr[i] << std::endl;
    }

    for (int i = 0; i < lengthOfArray; i++)
    {

        std::cout << "value holded by pointer : " << (ptr_arr + i) << " : "
                  << "value : " << *(ptr_arr + i) << std::endl;
    }

    std::cout << "-------------------------------------------" << std::endl;

    std::string distros[4] = {"arch", "manjaro", "ubuntu", "debian"};
    std::string *ptr_linux = &distros[0];
    size_t lengthOfDist = sizeof(distros) / sizeof(distros[0]);

    for (int i = 0; i < lengthOfDist; i++)
    {

        std::cout << " distribution : " << distros[i] << " : "
                  << " address : " << &distros[i] << std::endl;
    }

    for (int i = 0; i < lengthOfDist; i++)
    {

        std::cout << "value holded by pointer : " << (ptr_linux + i) << " : "
                  << " distribution : " << *(ptr_linux + i) << std::endl;
    }
}

//Compile and run. It should print simiar
/*---------------------------------------------------------------
value : 2 : address : 0x7ffd57403dd0
value : 4 : address : 0x7ffd57403dd4
value : 8 : address : 0x7ffd57403dd8
value : 16 : address : 0x7ffd57403ddc
value holded by pointer : 0x7ffd57403dd0 : value : 2
value holded by pointer : 0x7ffd57403dd4 : value : 4
value holded by pointer : 0x7ffd57403dd8 : value : 8
value holded by pointer : 0x7ffd57403ddc : value : 16
-------------------------------------------
distribution : arch :  address : 0x7ffd57403de0
distribution : manjaro :  address : 0x7ffd57403e00
distribution : ubuntu :  address : 0x7ffd57403e20
distribution : debian :  address : 0x7ffd57403e40
value holded by pointer : 0x7ffd57403de0 :  distribution : arch
value holded by pointer : 0x7ffd57403e00 :  distribution : manjaro
value holded by pointer : 0x7ffd57403e20 :  distribution : ubuntu
value holded by pointer : 0x7ffd57403e40 :  distribution : debian
---------------------------------------------------------------*/