generics/nullable/nullable.cs - A partial reproduction of struct Nullable<T>. | Lecture 11 - slide 13 : 21 Program 1 |
using System; public struct Nullable<T> where T : struct{ private T value; private bool hasValue; public Nullable(T value){ this.value = value; this.hasValue = true; } public bool HasValue{ get{ return hasValue; } } public T Value{ get{ if(hasValue) return value; else throw new InvalidOperationException(); } } }