Hello, I have recently started using boost::shared_ptr in my code. I understand that cycles of shared_ptr will cause a problem. Now, I strongly believe that such a situation has arisen in my code and am wondering if there is any advice/tips on how one can detect when a cycles of shared_ptr has occured. The code I am working on is developed by several people and the shared_ptr of interest is passed to many objects. Thanks for any and all help. Cheers, Donovan PS: This is my first time posting to boost-users.