Re: [boost] weak_ptr triple states

From: Joe Gottman (jgottman_at_[hidden])
Date: 2005-07-16 19:09:50

"Peter Dimov" <pdimov_at_[hidden]> wrote in message 
news:006c01c588dc$8325c380$6501a8c0_at_pdimov2...
> Right... you can thank Joe for that, with the latest changes to TR1 (*)
> operator< can tell you whether a weak_ptr is empty. The original version 
> did
> not guarantee that all empty weak pointers compared equivalent. :-)

   I just checked the documentation for operator<() for shared_ptr and 
weak_ptr, and it says two shared_ptrs (or weak_ptrs) are equivalent if and 
only if they share ownership.  You should probably add "or are both empty".

Joe Gottman