Re: [boost] smart pointer puzzle

From: James Kanze (kanze_at_[hidden])
Date: 2002-04-08 01:17:36

"Richard Damon \(E-mail\)" <RDamon_at_[hidden]> writes:

|>  2) You need a much smarter shared_ptr that can reconnect to other
|>  copies from the stored pointer, and if there is none to remember
|>  that it does not own it. A normal shared_ptr will not be smart
|>  enough to do this due to the overhead that will be added, as it
|>  requires the keeping of a map of some sort of values under
|>  controlled by all shared_ptrs in the program.

I'm not quite sure what you mean by the first sentence.  In general, to
be useful, you must be able to create a smart pointer from a raw pointer
multiple times (or find some way of making "this" a smart pointer).  The
current boost::shared_ptr doesn't support this, but it is the only
implementation of reference counted pointers I have encountered that
doesn't.

-- 
James Kanze                                mailto:kanze_at_[hidden]
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