countlist

blueznl · Post by **blueznl** » Wed Oct 01, 2003 7:09 pm

question as to the internal workings of the countlist command, is it simply a counter (thus using countlist does not impose a slowdown and it can be used as an easy check to see if a list is empty) or does it actually count elements in there?

Post by **Fred** » Thu Oct 02, 2003 9:34 am

It does actually count..

blueznl · Post by **blueznl** » Thu Oct 02, 2003 10:47 am

besides keeping your own counter, is there another way to check if a list is empty?

Saboteur · Post by **Saboteur** » Thu Oct 02, 2003 11:54 am

yes.

Code: Select all

if LastElement(linkedlist())
  debug "List if full"
else
  debug "List is empty"
endif

Post by **freak** » Thu Oct 02, 2003 2:54 pm

I think LastElement() also loops through the elements, till the last one is reached.

Timo

Post by **Fred** » Fri Oct 03, 2003 9:52 am

No the list structure get the point of the first and last element so LastElement() is an elegant solution for that.

Saboteur · Post by **Saboteur** » Fri Oct 03, 2003 11:34 am

Of course, I am elegant

Post by **Fred** » Fri Oct 03, 2003 4:02 pm