[C++-sig] Re: Shared Pointers and Boost.Python

Brian Hall bhall at gamers-fix.com
Sun Jul 25 17:32:04 CEST 2004

Actually, everything he did was fine.  Wrapping classes with
shared_ptr is almost completely pointless now, since any Python object
holding an X object can be converted to a shared_ptr<X>.  The
shared_ptr has a custom deleter that manages the owning Python object's

You might want to use register_ptr_to_python<shared_ptr<X> >() for
some shared pointers if you ever create them from C++ code, but in
this case it never happens so they can all be automatically converted
back into Python objects by (we just extract the owning Python object
from the deleter).


Actually before I tried putting the shared_ptr<> declaration in the class_
exposure, the application would crash in some code having to do with the
custom deleter.  It also was saying something about being unable to make a
to_python coverter.


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