# create a subthread for each tree executing the above recursiveFringe
   # in such a way that the output from print above can be read in
   # while(<...>) in the main thread.
   # once a difference occurs return FALSE and terminate threads

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That looks more like a fork-based approach than a thread based.

See mine for a recursion and threads approach.

I'd love to see a Coro solution here.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re^2: Challenge: Perl 5: lazy sameFringe()? by BrowserUk
in thread Challenge: Perl 5: lazy sameFringe()? by BrowserUk

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