From: William Djaja Tjokroaminata <billtj@...>
Date: 2002-12-10T06:39:55+09:00
Subject: Re: Extension: array size?

Mark Probert <probertm@nortelnetworks.com> wrote:

> Rubyists,

> I know I am missing something obvious here.  How do I
> find the number of elements in an array from C?  In other
> words,  what is the equivalent of Array#size/length in C?

Hi,

It is mentioned "informally" on the second page of "Extending
Ruby" Chapter in the pickaxe book (p. 172).  It is 'RARRAY(arr)->len',
which is of type 'long'.  (Well, in this case actually we are dealing with
the internal structure of RARRAY; just hope that Matz will never change
it...)

Regards,

Bill