Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked

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

by grizzley (Chaplain)
on Sep 17, 2012 at 11:17 UTC ( #994014=note: print w/ replies, xml ) Need Help??

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

In description of unpack there is following method to count number of bits:

# Count the bits in a chunk of memory (e.g. a select vector) unpack( '%32b*', $mask );
Update: sorry, I misunderstood question. If you have string of bits with one bit set, then you could try just $bitstring =~ /1(0*)$/; $originalvalue = length($1)+1;

Comment on Re: Which bit is set? (inverse of (1<<$value) operator)
Select or Download Code
Replies are listed 'Best First'.
Re^2: Which bit is set? (inverse of (1<<$value) operator)
by wirito (Acolyte) on Sep 17, 2012 at 12:13 UTC
    Nope, it's a two-byte int, not a strings filled with 0's and 1's.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://994014]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (8)
As of 2016-02-12 19:43 GMT
Find Nodes?
    Voting Booth?

    How many photographs, souvenirs, artworks, trophies or other decorative objects are displayed in your home?

    Results (412 votes), past polls