[Haskell-beginners] Empty type
KwangYul Seo
skyul at company100.com
Fri Oct 25 03:44:06 UTC 2013
Hello,
It seems there are three different ways to declare an empty type in Haskell.
http://www.haskell.org/haskellwiki/Empty_type
1) data E0 = E0
2) newtype Void = Void Void
3) data Void
I'd like to know how the second trick works. Is it possible to create a new
type from itself? How should I interpret this?
Thanks,
Kwang Yul Seo
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