using System;

public struct SDummy : IDisposable

{

    private bool _dispose;

    public void Dispose() => _dispose = true;

    public bool GetDispose() => _dispose;

    private static void Main(string[] args)

    {

        var d = new SDummy();

        using (d)

        {

            Console.WriteLine(d.GetDispose());

        }

        Console.WriteLine(d.GetDispose());

    }

}