From: Pit Capitain <pit@...>
Date: 2002-11-10T02:01:41+09:00
Subject: Re: Multi-dimensional (like 2) arrays in Ruby

On 9 Nov 2002 at 11:15, ahoward wrote:

> On Sat, 9 Nov 2002, Ted wrote:
> 
> > Does Ruby support other than 1 dimensional arrays?
> 
> class Array
>   def Array.Array dims, default=nil, accum=[]
>     if dims.size == 1
>       return Array.new(dims[0], default)
>     else
>       return accum = Array.new(dims.shift, Array.Array(dims, default,
>       accum))
>     end
>   end
> end
> 
> m = Array.Array [4,3,2], 42
> 
> p m >>
> 
> [[[42, 42], [42, 42], [42, 42]], [[42, 42], [42, 42], [42, 42]], [[42,
> 42], [42, 42], [42, 42]], [[42, 42], [42, 42], [42, 42]]]

and then

m[0][0][0] = 0
p m >>

[[[0, 42], [0, 42], [0, 42]], [[0, 42], [0, 42], [0, 42]], [[0, 42], 
[0, 42], [0, 42]], [[0, 42], [0, 42], [0, 42]]]

Please see the other posts to this thread for ways to improve the 
code.

Regards,
Pit