Hugh Sasse Staff Elec Eng <hgs / dmu.ac.uk> writes:

> Is there an idiom for 3-dimensional arrays in Ruby?  I see that
> some fo the array operators assume you are handling an array of arrays...
> I'm concerned about clean ways to address the contents, and yet have
> reasonable access times.
> If there isn't I will use the same techniques I did for C++.

     a = [ 
           [
              [ 1 , 2 ],
              [ 3 , 4 ]
           ],
           [
              [ 5 , 6 ],
              [ 7 , 8 ]
           ]
         ]

     for i in 0..1
       for j in 0..1
         for k in 0..1
           puts "a[#{i}][#{j}][#{k}] = #{a[i][j][k]}"
         end
       end
     end


Arrays of arrays of arrays are handled, the main problem being the
need to ensure that you actually have arrays in there--there's no
auto-creation as with Perl.

Dave