From: "Wayne E. Seguin" <wayneeseguin@...>
Date: 2007-08-09T22:30:44+09:00
Subject: Re: Deep Clone of array?

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On Aug 09, 2007, at 04:13 , Ronald Fischer wrote:
> Is there a standard way of doing a deep copy of an object (in
> particular, of an array)?
>
> http://www.ruby-doc.org/core/classes/Object.html#M000379 mentions a
> function 'dclone',
> but this doesn't seem to exist:
>
>  		undefined method `dclone'

Ronald,

I don't know about a "standard" way, however the method that I use to  
deep copy uses built in constructs:

hashish =  { :a => "a", :b => "b", :c => ["a","b","c"] } # some  
arbitrary object with references to other objects

hashish_deep_copy = Marshal.load( Marshal.dump( hashish ) )

hashish_deep_copy will then be a deep copy of hashish.

Hope this helps,

   ~Wayne

s///g
Wayne E. Seguin
Sr. Systems Architect & Systems Administrator


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