How do the Haskell examples handle those cases?

It doesn't. You can use "boolean guards" though to handle different cases: 

    fac 0 = 1;
    fac n | n > 0     = n * fac (n-1)
          | otherwise = ...

[download]
otherwise is just a standard alias for True to make it read well.

ihb

In reply to Re^5: RFC: A Perlesque Introduction to Haskell, Part One (draft) by ihb
in thread RFC: A Perlesque Introduction to Haskell, Part One (DRAFT) by FoxtrotUniform

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