[C++-sig] Is there a way to automatically convert a smart_ptr to a held_type (try 2)

[Allen Bierbaum]

>
> Thanks for your help.  I will let you know if anything else crops up
> but I think I am starting to understand this part of boost.python much
> better now so hopefully I will be able to fix it myself. :)

It looks like everything related to the auto-converting to ref_ptr
held type and handling of converting to and from None.

I have one remaining problem that I know of with this code.  How do I
make it possible to compare the wrapped ref_ptrs for equality?  I am
assuming that I need to add an __eq__ operator for the ref_ptr types
but since they are used as held_type I am not really exposing them in
the "normal" way.

This is how it is behaving right now (note: all the objects here have
ref_ptr held type)

>> n = osg.Node.create()
>> g = osg.Group.create()
>> n.setCore(g)
>> g
<osg._osg.Group object at 0xb785fcac>
>> n.getCore()
<osg._osg.Group object at 0xb785f16c>
>> g == n.getCore()
False


Does anyone know if this is also an issue when wrapping an API and
using boost::shared_ptr<> as the held type?  If so, how is that case
handled?

Thanks,
Allen