From: Martin DeMello <martindemello@...>
Date: 2005-04-11T16:39:43+09:00
Subject: Re: Array#last_index

Robert Klemme <bob.news@gmx.net> wrote:
> 
> "Trans" <transfire@gmail.com> schrieb im Newsbeitrag
> news:1113074095.070106.22910@l41g2000cwc.googlegroups.com...
> > > Can you not just use -1 as the index?
> >
> > No. Because, it is not always simply a matter of getting to the last
> > element. If it were then #last itself would suffice. The use case here
> > is when the last index is needed.
> 
> Care to unveil the use case?  I never neede that myself - just
> wondering...

I've written C code that started with a pointer at either end of an
array and walked them towards each other.

martin