Nullable implementation

Question

I am trying to implement Nullable type. But below mentioned code doesn\'t support null value for valuetype datatypes.

using System;
using System.Runtime;
using S         


        

Answer 1

You are declaring your homegrown Nullable as a struct, and a struct is not nullable. You should declare it as a class instead.

this code should throw the same error you are having, switching the Point type declaration from struct to class should fix it.

void Main()
{
    Point p = null;
}

// Define other methods and classes here
struct Point
{
 public int X   {get; set;}
 public int Y   {get; set;}
}