Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
List::Rotation::Cycle(User Contributed Perl DocumentatList::Rotation::Cycle(3)

NAME
       List::Rotation::Cycle - Cycle through a list of values via a singleton
       object implemented as closure.

SYNOPSIS
	   use List::Rotation::Cycle;

	   my @array = qw( A B C );

	   my $first_cycle  = List::Rotation::Cycle->new(@array);
	   my $second_cycle = List::Rotation::Cycle->new(@array);

	   print $first_cycle->next;  ## prints	A
	   print $second_cycle->next; ## prints	B
	   print $first_cycle->next;  ## prints	C
	   print $second_cycle->next; ## prints	A, looping back	to beginning

DESCRIPTION
       Use "List::Rotation::Cycle" to loop through a list of values.  Once you
       get to the end of the list, you go back to the beginning.

       "List::Rotation::Cycle" is implemented as a Singleton Pattern. You
       always just get 1 (the very same) Cycle object even if you use the new
       method several times.  This is done by using "Memoize" on the "new"
       method. It returns the same object for every use	of "new" that comes
       with the	same List of parameters.

OBJECT METHODS
       new Create a Cycle object for the list of values	in the list.

       next
	   Return the next element.  This method is implemented	as a closure.

AUTHOR
       Imre Saling, "<pelagicatcpandotorg>"

COPYRIGHT and LICENSE
       Copyright 2000-2004, Imre Saling, All rights reserved.

       This software is	available under	the same terms as perl.

perl v5.32.1			  2008-02-19	      List::Rotation::Cycle(3)

NAME | SYNOPSIS | DESCRIPTION | OBJECT METHODS | AUTHOR | COPYRIGHT and LICENSE

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=List::Rotation::Cycle&sektion=3&manpath=FreeBSD+13.0-RELEASE+and+Ports>

home | help