Thanks for coming up with a fun diversion for this morning!

T'is fun isn't it ;) But, it will also serve a very practical purpose, which (for me) makes it all the more fun. It always amazes me the diversity of approaches that the monks come up with for tackling seemingly quite tightly defined problems like this. That's why I posted it; and one of the very best things about this community.

See also Re: unpacking 6-bit values for my benchmark of 4 pure perl solutions and 3 C routines, including one of yours. I would have posted it earlier, but it took a considerable amount of effort to ensure that all the routines actually produced the same output. That meant adapting almost of the posted code to some degree or another.

jmacnamara's solution is hands down winner in the pure perl stakes, being roughly twice as fast as my original. But the C versions, which are all much of a muchness, despite being radically different in the way they achieve the solutions, are a good 5 times faster still. Had there been a directly usable pack/unpack version, I would have expected a far smaller differential, perhaps small enough to warrant avoiding moving to C; but as is, I think C will be necessary for this.

Thank you (and everyone) for your time and effort, it helped me a lot.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^4: unpacking 6-bit values by BrowserUk
in thread unpacking 6-bit values by BrowserUk

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