On Friday 03 April 2009 21:41:26 Harrison, John R wrote:
> | I can agree with you on this argument, but a question still remains:
> |
> | why should you ever do things like:
> | > # s.[0] <- 'a';;
>
> The point is that it might not be your own code that does it, but a
> function written by someone else to which you innocently pass a string
> argument. You may think you're writing purely functional code...

Why? This data structure is a mutable array of bytes and should be treated as 
such.

-- 
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e