Option!T

[Dicebot via Digitalmars-d]

On Wednesday, 2 July 2014 at 11:48:18 UTC, Shammah Chancellor 
wrote:
> I don't see a huge difference either.   I didn't realize 
> Nullable was already around.  The main thing is that is 
> valuable is that Nullable/Option extended to reference types, 
> and then disabling the usual null assignment to references.

There is a very important difference when all other types 
considered non-nullable - something we can only achieve by 
convention in D.