// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002631/uintptr-subtract

​

// @nuget: Z.ExtensionMethods

​

using System;

public class Program

{

    public static void Main()

    {

        int[] arr = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

        UIntPtr ptr = (UIntPtr) arr[arr.GetUpperBound(0)];

        for (int ctr = 0; ctr <= arr.GetUpperBound(0); ctr++)

        {

            // C# Extension Method: UIntPtr - Subtract

            UIntPtr newPtr = ptr.Subtract(ctr);

            Console.Write("{0}   ", newPtr);

        } 

    }

}