2012/10/24 David Hagood <david.hagood@gmail.com>
I am trying to wrapper around a C library (specifically, libxml2) so that I can use it within a C++ program. (yes, I am aware of libxml++ - but it doesn't play nice with libxslt).
If the core libxml2 objects were internally reference counted, I could use an intrusive_ptr, and have the friend intrusive_ptr_release call libxml2's release function, and all would be well - but unfortunately libxml2 does not internally reference count the objects (at least, not in a way I have seen).
If there were a way to specialize smart_ptr<T> such that instead of the destructor calling delete(), it called what I wanted, I'd be set, but I see no way to easily specialize smart_ptr<xmlDoc> in that way - or am I missing something?
Just provide it with your custom Deleter in the ctor. template<class Y, class D> shared_ptr(Y * p, D d);