using System;

using System.Collections.Generic;

​

public class Program

{

    public struct Point

    {

        public double X;

        public double Y;

    }

​

    public static void Main()

    {

        var listOfPoints = new List<Point>();

        listOfPoints.Add(new Point());

        var point = listOfPoints[0];

        point.X = 1;

        var areEqual = point.X == listOfPoints[0].X;

        Console.WriteLine("Are equal: " + areEqual.ToString());

    }

}