From: Josselin <josselin@...>
Date: 2007-04-29T00:10:05+09:00
Subject: Re: cyclic array

On 2007-04-28 15:05:48 +0200, Josselin <josselin@wanadoo.fr> said:

> I would like to print  n elements from an Array in a cyclic way.
> 
> I mean :
> 
> using anArray = [ "a", "b", "c", "d", "e", "f", "g"], I should do :
> 
>  anArray.print_cyclic(4, 0) => "a", "b", "c", "d"   (first print  4 
> elements starting with the first one)
> 
> anArray.print_cyclic_next => "b", "c", "d", "e"
> anArray.print_cyclic_next => "c", "d", "e", "f"
> anArray.print_cyclic_next => "d", "e", "f", "g"
> anArray.print_cyclic_next => "e", "f", "g", "a"
> anArray.print_cyclic_next =>  "f", "g", "a", "b"
> anArray.print_cyclic_next => "g", "a", "b", "c"
> .....
> also in reverse cycle
> anArray.print_cyclic(4, 0) => "a", "b", "c", "d"
>  anArray.print_cyclic_previous => "g", "a", "b", "c"
>  anArray.print_cyclic_previous => "f", "g", "a", "b",
> 
> what could be the simplest way to do it ?  no simple way using Array 
> class methods only  ,
> should I define a class and methods to loop into the array ?  any 
> existing lib ?  if it has been already done why should I rewrite it ....
> 
> 
> tfyh
> 
> joss

Thanks to all of u . As always different ways .. the most difficult 
step for a newbie is : where should I start ?

joss