Option!T
Andrei Alexandrescu
SeeWebsiteForEmail at erdani.org
Tue Dec 10 09:28:26 PST 2013
I talked to a programmer who knows Scala (among others) and he mentioned
the usefulness of the Option type - a zero or one element collection
(range in D terminology). Here's an article discussing it:
http://danielwestheide.com/blog/2012/12/19/the-neophytes-guide-to-scala-part-5-the-option-type.html
We have only(x) (http://dlang.org/phobos/std_range.html#.only) to be a
collection of exactly one value, but not a type for "a value of type T
or nothing at all". Should we follow Scala's example and add it?
Andrei
More information about the Digitalmars-d
mailing list