Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?

Re: Implementing a cyclic array

by citromatik (Curate)
on Jun 19, 2009 at 12:39 UTC ( #773018=note: print w/ replies, xml ) Need Help??

in reply to Implementing a cyclic array

Tie::Cycle is a simple module that implements cyclic arrays through a tied reference (to the array):

use strict; use warnings; use Tie::Cycle; my @names = qw/tom harry diana nick sally henry/; tie my $cycle, 'Tie::Cycle', [ sub{print "$_[0] plays\n"}, sub{print "$_[0] eats\n"}, sub{print "$_[0] sleeps\n"} ]; $cycle && $cycle->($_) for (@names);


tom plays harry eats diana sleeps nick plays sally eats henry sleeps

The last line ($cycle && $cycle->($_) for (@names);) seems a bit odd, but $cycle->($_) doesn't trigger the FETCH sub in the tied scalar (anybody knows why?) and a first call to $cycle is needed.


Comment on Re: Implementing a cyclic array
Select or Download Code

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://773018]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (9)
As of 2015-11-27 10:24 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (724 votes), past polls