On 2008 Dec 1, at 8:28, Andrew Wagner wrote:
Hm, I've been thinking about this this morning as I've gone about my commute. I could indeed imagine a class like the following that had multiple implementations like you're talking about:
One can indeed --- but it turns out to be even more general than just trees. Go look at the Foldable and Traversable classes.
-- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED] system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED] electrical and computer engineering, carnegie mellon university KF8NH
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