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From: Larry Evans (jcampbell3_at_[hidden])
Date: 2003-05-27 17:51:10

Chuck Messenger wrote:
> In general, the abstraction is: you have a group of intra-referential
> objects. When any of the group is constructed, they are all constructed
> (so that the master count is temporarily > 1), and the master count is
> reset to 1. When the master count goes to 0, the group is destructed.
> Hence, the group only remains alive as long as there are any external
> references (and as long as the intra-group references remain static).
> Could a standard smart pointer be designed to encapsulate this
> abstraction? Hmmm....
Just FYI, this "abstraction" is the basic idea behind recoverying
cycles in:

Chrisopher's altorithm:

is basically the same, except the "group" is the whole heap. Christopher's
is the basis of Colvin's cyclic_ptr:

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