Quoting [Thilo Kielmann] (Aug 03 2006):
it is not clear (to me ;-) why prev. error condition and callbacks MUST NOT get copied can anybody give a motivation for this, please? (and include it in the document)
just about that for now: - about the error condition: I think it makes sense to start a new object instance with a clean error record. I am not sure though - either way is fine with me. - about the callbacks: callbacks have a simple way to avoid getting called twice (they get removed on returning false). By copying the cb's to the new instance, that mechanism is effectively disabled (the cb can be called on both instances, hence twice). Also, a cb is a application level object, so the SAGA implementor has no control whatsoever on how large that object is, and copying can be very expensive. Cheers, Andre. -- "So much time, so little to do..." -- Garfield