Pointer to array in C#

using System;

namespace arrayDemo

{

    class Program

    {

       unsafe static void Main(string[] args)

        {

          

           int[] arr={10,20,30,40};

           //ptr is pointer to array of integer

            fixed (int* ptr = arr)

            {

                int* p = ptr;

                for (int i =0; i<arr.Length ;i++)

                {

                    Console.Write("{0} ",*p);

                    p++;

                }

            }

            Console.ReadKey();

        }

    }

}

Output:

10 20 30 40