"Simon Peyton-Jones" <[EMAIL PROTECTED]> writes:
> So I propose to modify the instance decl for Ratio by
> adding explicit defns for succ/pred just like those in
> Float/Double.
I bet you guessed: once at it, what about removing those
unintuitive 1/2-s, like:
numericEnumFromTo n m = takeWhile (<= m) (numericEnumFrom n)
numericEnumFromThenTo n n' m = takeWhile p (numericEnumFromThen n n')
where
p | n' > n = (<= m + (n'-n))
| otherwise = (>= m + (n'-n))
Everybody working with floats should know their quirks, while
Rationals should be treated exactly.
Feri.
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