AFAIK, it is for circle-of-reference problems. If two objects have a shared_ptr to each other, they won't get deleted. If one has a weak_ptr to the other, then hopefully things should work out, but you probably have to be careful (Haven't actually used a weak_ptr yet, but may need to). Cheers Russell Edward Diener wrote:

I don't understand what the practical use of Boost weak_ptr<> is ? Anyone like to clue me in ? I understand that Boost weak_ptr<> creates an internal reference to a Boost shared_ptr<> but I don't understand what that is supposed to accomplish.

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