[Haskell-cafe] testing for exceptions

[Roelof Wobben]

Op 31-10-2015 om 11:40 schreef Darren Grant:
>
> Unfrotunately the answer to this is not simple:
>
> http://stackoverflow.com/questions/4243117/how-to-catch-and-ignore-a-call-to-the-error-function
>
> 'error' more or less terminates the program in an unreasonable way.
>
> It would be preferable for f2 to result in a type that can contain the 
> error result to be parsed.
>
> Cheers,
> Darren
>
>


Oke,

So I have to change the type of f2.

To what do I have to change it to make it testable.

Roelof