[Haskell-beginners] Bool -> a -> Maybe a, or something similar

[Felipe Almeida Lessa]

On Sat, Jun 18, 2011 at 12:37 AM, Michael Xavier
<nemesisdesign at gmail.com> wrote:
> Hayoo seems to me to do a better job at type signature searching.

Hoogle usually does a great job with type signatures.  The problem
seems to be that by default it searches through just a small number of
packages, and AFAIK you can't tell it to search on all Hackage.  See
these three links:

http://haskell.org/hoogle/?hoogle=Bool+-%3E+a+-%3E+Maybe+a
http://haskell.org/hoogle/?hoogle=Bool+-%3E+a+-%3E+Maybe+a+++%2Butility-ht
http://haskell.org/hoogle/?hoogle=Bool+-%3E+a+-%3E+m+a+++%2Butility-ht

Cheers,

-- 
Felipe.