-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday 02 April 2008 12:58 pm, Ross MacGregor wrote:
I just created a very small smart pointer libary for our project. It will contain two types of shared pointers: SharedHandle and NullableSharedHandle. SharedHandle will be a shared pointer that cannot be null by ensuring a non-null construction while NullableSharedHandle will basically be a typedef for boost::shared_ptr.
If you're going to make a shared_ptr wrapper that acts like a reference (no null, no reset, I assume no assignment) then why not complete the set and add another that acts like a value? That is, one that does deep copies of the template type on assignment, and it could also have the non-null requirement. It would differ from an ordinary value in that you could obtain shared_ptr (or your other wrapper types) from it which share ownership. It would be useful for cases where you currently have a class with a shared_ptr member but need to do deep copies of the object owned by the shared_ptr in the containing class' assignment/copy constructor. - -- Frank -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFH9NmK5vihyNWuA4URAg76AJ4/j4DbkRbaiS4KsByXXN+VAoh8uQCeNjY4 KMf3tP3jIKffiOFMZzRLMpA= =IIlH -----END PGP SIGNATURE-----