View source for Linklist.getposition

== Calling Pattern ==
Call
 local k = sl.linklist()
 -- later
 local n = k.getposition(a[,b])

Arguments
 a is a number
 b optional, is a boolean

Results
 n is a number

== Example Usage ==

 local k = sl.linklist()
 local j = k.insertb(0,'one')
 local j0 = j
 j = k.insertb(j,'two')
 j = k.insertb(j,'three')
 print(k.getpos(j0))
 print(k.getpos(j))

 --> 3
     1 

== Description ==

Calling getposition returns the absolute position of a link psuedo-index relative to the head of the list. If b is specified and has a value of false then getposition returns the position relative to the tail of the list. Positions run from 1 to the length of the linked list.  If the parameter supplied is an invalid pseudo-index, then getposition returns 0. ** There is an error in version 0.06 that will be corrected in later versions.  If b is false, getposition will return the wrong values if the pseudo-index is either the head or tail of the list.**

== See Also ==

* [http://www.easyuo.com/openeuo/wiki/index.php/Simplelib simplelib]

* [[deque]]

* [[linklist]]
* [[linklist.head]]
* [[linklist.insertafter]]
* [[linklist.insertbefore]]
* [[linklist.length]]
* [[linklist.nextlink]]
* [[linklist.prevlink]]
* [[linklist.removelink]]
* [[linklist.returntable]]
* [[linklist.setvalue]]
* [[linklist.swap]]
* [[linklist.tail]]
* [[linklist.value]]