-----Original Message----- From: boost-bounces@lists.boost.org on behalf of Tobias Schwinger Sent: Fri 12/1/2006 3:57 AM To: boost@lists.boost.org Subject: Re: [boost] FW: Suggestion for boost`s smart pointers Sohail Somani wrote:
Please see the following email about additional template parameters for scoped_ptr. The quick hack I wrote for it is below (I've used this in previous project as well). I think it would be very useful to many users and wouldn't change any source using scoped_ptr.
This question makes me feel nostalgic. My first request on this list looked very similar (I needed to Release() COM objects). I just dug up the reply and it seems there used to be this kind of parametrized deletion for shared_ptr. ---------------- Thanks for your reply but the domain of COM objects lends itself well to shared_ptr. ----------------- Actually, I don't think that parametrized deletion belongs into the interface of a smart pointer. It's up to other components to have proper deletion semantics. Still, there sure are cases (dealing with third-party or plain C components) where it is a practical thing to have. ------------------ I went through the archives after the posts and I have realized that scoped_ptr is not changing! I will still disagree that the deleter shouldn't be a parameterized type. The only other option is using a type erasure mechanism like shared_ptr which is more trouble than its worth for things like deallocating C resources.