[Haskell-cafe] no sparks?

[Gregory Crosswhite]

On Dec 20, 2009, at 2:25 PM, Jamie Morgenstern wrote:

> Also, I was wondering if something akin to a "parallel or" exists. By this, I mean I am looking for a function which, given x : a , y : a, returns
> either, whichever computation returns first.  Can I use strategies to code up something like this?
> I suppose this doesn't play nicely with the idea of determinism, but thought it might be worth asking 
> anyway.


There is in fact a package that seems to do exactly that;  look up "unamb" (short for "unambiguous choice") on Hackage.

Cheers,
Greg