using System;

using System.Collections.Generic;

public class Program

{

    public struct MyInt

    {

       private int _x;

​

       public MyInt(int x)

       {

        _x = x;

       }

​

       public void Increment()

       {

        _x++;

       }

​

       public override int GetHashCode()

       {

        return _x;

       }

    }   

    //----------------------------------------------------------

    // ------------------------Program--------------------------

    // ---------------------------------------------------------

    public void Main()

    {

        var dictionary = new Dictionary<MyInt, string>();

​

        var myInt = new MyInt(42);

​

        dictionary[myInt] = "some выавываыываываыва";

​

        myInt.Increment();

​

        var res = dictionary[myInt];

​

        // here we use res variable in some other method

        Console.WriteLine(res);

    }       

}

​

​

​

​