Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot

Re^2: Quicksort problem

by JediMasterT (Sexton)
on Nov 22, 2011 at 13:49 UTC ( #939456=note: print w/replies, xml ) Need Help??

in reply to Re: Quicksort problem
in thread Quicksort problem

how does the // part work?

Replies are listed 'Best First'.
Re^3: Quicksort problem
by Limbic~Region (Chancellor) on Nov 22, 2011 at 14:12 UTC
    See perlop. The // operator essentially is a special or operator where it is testing the left hand side for definedness. I am pretty sure this became available in perl 5.10 four years ago but you can check perlhist and perldelta if you want to be sure.

    Cheers - L~R

Re^3: Quicksort problem
by choroba (Chancellor) on Nov 22, 2011 at 14:13 UTC
    If the left part is not defined, the right is returned, otherwise the left one is. See perlop.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://939456]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (3)
As of 2016-10-24 04:52 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (303 votes). Check out past polls.