Oh well, thanks for all the response.
I have a module with lots of one line function definitons, and they just
*look* ugly when I wrap the return type with Maybe. This is a
straightforward, and trivial job (the conversion) and I really don't care
about other problems (such as non-termination plus
On Wed, Apr 14, 2010 at 2:32 AM, Ivan Miljenovic
wrote:
> Why not use Maybe for func1 in the first place? Or are you wanting to
> automagically make all uses of head, tail, etc. safe?
In which case there is already the 'safe' package:
http://hackage.haskell.org/package/safe
_
On 13 April 2010 20:02, Ozgur Akgun wrote:
> func1 :: T -> T
> func1 A = B
>
> func1Fixed :: T -> Maybe T
> func1Fixed A = Just B
> func1Fixed _ = Nothing
Why not use Maybe for func1 in the first place? Or are you wanting to
automagically make all uses of head, tail, etc. safe?
--
Ivan Lazar
Excerpts from Ozgur Akgun's message of Tue Apr 13 12:02:06 +0200 2010:
> Cafe,
>
> Is there a way (without going into the IO lands) to achieve this:
> [..]
There's package for that on hackage:
http://hackage.haskell.org/packages/archive/spoon/0.3/doc/html/Control-Spoon.html
However, this is some
Cafe,
Is there a way (without going into the IO lands) to achieve this:
data T = A | B | C
func1 :: T -> T
func1 A = B
func1Fixed :: T -> Maybe T
func1Fixed A = Just B
func1Fixed _ = Nothing
I want a function to generate func1Fixed, given func1.
I guess this is doable with exception handling
