Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Re^2: Which bit is set? (inverse of (1<<$value) operator)

by wirito (Acolyte)
on Sep 17, 2012 at 12:11 UTC ( #994023=note: print w/replies, xml ) Need Help??


in reply to Re: Which bit is set? (inverse of (1<<$value) operator)
in thread Which bit is set? (inverse of (1<<$value) operator)

Many thanks!

The lookup idea is nice and clean. I will use it as I only have 9 different bits.

However, your second option is the one I was (foolish) looking for. In my code, this could be the line:

# return the first less significant bit set. return $_ for grep { $bit & 1<<$_ } (0..8)';

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://994023]
help
Chatterbox?
[erix]: well, dutch royals are germans, really
[choroba]: Utrecht? Is that where we made the trip, LanX?
[erix]: we should really dupm the lot, but I got no say in the matter :)
[LanX]: yeah its a religious mafia , the only two big calvinist houses are dutch and prussian. ..
[LanX]: choroba yes
[erix]: Utrecht has a beautiful old center, and less mass-tourism than Amsterdam
[erix]: next time, drop by :)
[LanX]: religion is also the reason how the house of Hanover aquire the English throne, all other candidates on succession where catholics...
[erix]: Henry VIII has a lot to answer for :P
[LanX]: erix sure next time you miss a conference nearby we drop by ...

How do I use this? | Other CB clients
Other Users?
Others exploiting the Monastery: (9)
As of 2017-12-15 16:38 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    What programming language do you hate the most?




















    Results (439 votes). Check out past polls.

    Notices?