Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re^2: Efficient bit counting with a twist.

by BrowserUk (Pope)
on Jan 27, 2013 at 08:33 UTC ( #1015567=note: print w/ replies, xml ) Need Help??


in reply to Re: Efficient bit counting with a twist.
in thread Efficient bit counting with a twist.

Why pack 'V'?

substr( $v, $p / 8, 1 ) is a byte, why mask with 4 bytes?


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.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
div class=Why

Replies are listed 'Best First'.
Re^3: Efficient bit counting with a twist.
by quester (Vicar) on Jan 27, 2013 at 09:02 UTC
    Oh. That. It's just force of habit, I adapted this bit of code from the way I code bitmasks for IPv4 subnets. It would make more sense to code it as pack 'C',... rather than pack 'V', although it works either way.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1015567]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (8)
As of 2016-06-30 12:09 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My preferred method of making French fries (chips) is in a ...











    Results (394 votes). Check out past polls.