17 Oct
2011
17 Oct
'11
8:32 p.m.
On 17 October 2011 23:59, Captain Freako
In this excerpt from the `StateArrow' page:
runState :: Arrow a => StateArrow s a e b -> a (e, s) (b, s)Source
what's the significance of having written "StateArrow s a e b", instead of "StateArrow s a b c"?
In the context of that page, do you think e might stand for something? btw. what's the URL? Conrad.