Linklist.getposition
From OpenEUO
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.**
