[Haskell-cafe] Combining computations

michael rice nowgate at yahoo.com
Sat May 2 23:26:22 EDT 2009

I posted something similar about an hour ago but it seems to have gotten lost. Very strange.

I've read that Monads can combine computations. Can a Maybe monad be combined with a List monad such that

Nothing `mplus` [] ==> [] 
Just 1 `mplus` [] ==> [1]

If not, can someone supply a simple example of combining computations?


-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.haskell.org/pipermail/haskell-cafe/attachments/20090502/f0e9d420/attachment.htm

More information about the Haskell-Cafe mailing list