From: matz@... (Yukihiro Matsumoto)
Date: 2003-02-06T18:31:39+09:00
Subject: Re: empty Array returned but expect nil

Hi,

In message "Re: empty Array returned but expect nil"
    on 03/02/06, "Barry Shultz" <barry_sh@hotmail.com> writes:

|But a[4] = nil ( it's a 4-element Array), so isn't a[4,0] also out of the 
|boundary?

Imagine index point at the beginning of elements, i.e.

 a = [0,1,2,3]

 |0|1|2|3|
 0 1 2 3 4 5
         ^
         |
so that a[4,0] touches at the end of an array, whereas a[5,0] does
not.

							matz.