Re: [Caml-list] [ANN] PEC ver. 1.1

[Satoshi Ogasawara <ogasawara@itpl.co.jp>]

(2012/04/18 2:52), Adrien wrote:
> I haven't been able to take more than a close look at PEC but I'm
> interested in it (in particular for the ability to send values to
> events during the update cycle).

Thank you for your interest in my library.

> I've noticed EventSig.scan: val scan : ('a ->  'b ->  'a) ->  'a ->  'b t ->  'a t
> Is this function like a fold? Is there a particular reason for naming
> it "scan" (rather than "fold")?

Because I thought Haskell's scanl is more similar to EventSig.scan than foldl.

scanl : (a -> b -> a) -> a -> [b] -> [a]
foldl : (a -> b -> a) -> a -> [b] -> a

BTW, I have just noticed Event.scan has a bug. The result of scan function should
  contain initial value specified second argument, but Event.scan doesn't.
That has been fixed.


Regards,
   Ogasawara