You can make numeric class instances from arbitrary Applicatives [1]. I imagine a lot of them (e.g. Stream) would want at least some non-strictness. We might provide strict alternatives for sum and product. I wonder what else.
[1] http://hackage.haskell.org/cgi-bin/hackage-scripts/package/applicative-numbers - Conal On Sat, Jun 13, 2009 at 7:03 AM, Keith Sheppard <keiths...@gmail.com> wrote: > Is there any reason that sum isn't strict? I can't think of any case > where that is a good thing. > > Prelude> sum [0 .. 1000000] > *** Exception: stack overflow > > -Keith > -- > keithsheppard.name > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe >
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