Thank you very much. I also came up with your second solution during testing, and I might just stick with that, but I'll have a look at the pimpl pattern before surrendering completely. At least it might go into the to-do list for future refactoring.
Thank you for your help. Jesper D. Thomsen AnyBody Technology A/S -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Jean-Sébastien Guay Sent: 8. februar 2011 15:22 To: OpenSceneGraph Users Subject: Re: [osg-users] Forward declarations and ref_ptr members Hi Jesper, > error C2079: 'asg::ASGContainer::m_osgroot' uses undefined class > 'osg::ref_ptr<T>' Template classes/methods need to be completely defined when they are used, so what you're trying won't work. In addition to using the pimpl idiom which would completely solve your problem but might take some time to implement everywhere it would be needed, you could get by just including <osg/ref_ptr> and forward declaring the classes that will be contained in a ref_ptr. So instead of: namespace osg { class Node; class Material; template <typename T> class ref_ptr; }; you could do: #include <osg/ref_ptr> namespace osg { class Node; class Material; }; The ref_ptr header is small and if that is the only one included in most places then you've got 98% of what you wanted for much less effort than using pimpl everywhere. That said, if I were designing an OSG-based API today I would probably use pimpl from the start and keep my public interface independent of OSG as much as I can. But that's just a design preference, and when refactoring existing code the decisions are different... Hope this helps, J-S -- ______________________________________________________ Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com http://www.cm-labs.com/ http://whitestar02.webhop.org/ _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
