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Re^3: next power of two

by trizen (Hermit)
on Dec 25, 2012 at 16:08 UTC ( #1010274=note: print w/replies, xml ) Need Help??


in reply to Re^2: next power of two
in thread next power of two

...and here is the fastest :-)

sub next_power_of_two {2 << log($_[0]) / log(2)}

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[Corion]: ambrus: Oh - that one would be much harder to automate... The SYNOPSIS section should mostly be a runnable program IMO, but I write only small snippets in my documentation for single functions/methods, and creating the appropriate environment for ...
[Corion]: ... those in an automated fashion seems somewhat hard to me. Although it should do wonders for the test coverage ;)
[haukex]: Corion: I once wrote an automated thingy for that here
[haukex]: here's the code that uses it
[Corion]: haukex: Hmm - maybe I can reuse that. I see that it uses Pod::Parser, which I think was one of the more fragile parsers. But if I'm statically (re)generating the tests instead of doing that "live" on the client/tester machines, that's a much smaller...
[Corion]: ... problem space than trying to cater to all versions of Pod::Parser(s)

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