Difference between revisions of "Linklist.getposition"
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(Created page with "== 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 == Exam...") |
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== Description == | == 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. | + | 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 == | == See Also == | ||
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* [[deque]] | * [[deque]] | ||
| + | * [[linklist]] | ||
* [[linklist.head]] | * [[linklist.head]] | ||
* [[linklist.insertafter]] | * [[linklist.insertafter]] | ||
Latest revision as of 14:41, 18 December 2010
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.**
