From: matz@... (Yukihiro Matsumoto)
Date: 2000-06-20T01:29:30+09:00
Subject: [ruby-talk:03534] Re: Deep copy?

Hi,

In message "[ruby-talk:03516] Deep copy?"
    on 00/06/19, Hugh Sasse Staff Elec Eng <hgs@dmu.ac.uk> writes:

|Given that I cannot overload =, how should I go about ensuring a deep
|copy of an object, as opposed to a shallow copy?

There's no independent way to copy deeply.  Only way I can think of
is:

   copy = Marshal::load(Marshal::dump(obj))

This is not perfect; you cannot copy several data types such as IOs.
But it handles cyclic data structures.
							matz.