John Lato <[email protected]> writes:
> Even in Haskell this separation isn't absolute. Programmer errors,
> such as dividing by 0, can and do lead to exceptional conditions. The
> proper way to handle dividing by 0 is to not do it in the first place,
> but if it happens because of a programming error, you've got an
> exception. Unfortunately this encourages programmers to think that
> handling the exception is the proper way to deal with this condition,
> but it isn't.
So I have another question. Is the following function safe
and legitimate?
> safeDiv :: (Exception e, Integral a) =>
> a -> a -> Either e a
> safeDiv x y = unsafePerformIO . try . evaluate $ div x y
I believe it should be okay to use this 'safeDiv'. What do
you think?
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