Nullable or Optional? Or something else?

[Jarrett Billingsley]

On Wed, Sep 2, 2009 at 4:13 PM, Simen Kjaeraas<simen.kjaras at gmail.com> wrote:
> Danny Wilson <bluezenix at gmail.com> wrote:
>
>> Op Wed, 02 Sep 2009 21:39:28 +0200 schreef Andrei Alexandrescu
>> <SeeWebsiteForEmail at erdani.org>:
>>
>>> I plan to add a Nullable struct to Phobos (akin to C#'s Nullable, Boost's
>>> Optional).
>>>
>>> Apparently a good design is to define Optional!T with a minimum of member
>>> functions (ideally none) and have it use the "alias this" feature to
>>> masquerade as a T. That way Optional!T looks and feels much like a T, except
>>> that it supports a function
>>>
>>> bool isNull(T)(Optional!T value);
>>>
>>> Am I on the right track? If so, what is the name you'd prefer for this
>>> artifact?
>>>
>>>
>>> Andrei
>>
>>
>> How about:  Maybe!T
>>
>>
>> Got that from Haskell :-)
>
> I also feel the bikeshed should be colored 'Maybe'.

Thirded!