[Haskell] Better Exception Handling

[Marcin 'Qrczak' Kowalczyk]

Ben Rudiak-Gould <Benjamin.Rudiak-Gould at cl.cam.ac.uk> writes:

> The intended semantics is
>
>                          / Nothing   if x is a set of exceptions
>     exceptionToMaybe x = | _|_       if x is _|_
>                          \ Just x    otherwise

What is
   exceptionToMaybe (f 0 + error "x")
where
   f x = f x
?

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak at knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/