>>>>> "H" == Hal E Fulton <hal9000 / hypermetrics.com> writes:

>> I believe you need to implement dup or clone yourself, to ensure a deep
>> copy. 

H> Generally true. But there's the trick of using Marshal to dump an object
H> and then load it again.

 This is more complex than this. Think, for example, about RCO

 You must first build a graph and then clone the object using this graph. 


Guy Decoux