CPP11 — _primary_interface

Summary: From the C++ spec (CORBA2_3-c++.pdf) pg: 20-132

For static skeletons, the default implementation of the _get_interface
and _is_a functions provided by ServantBase use the interface associated
with the skeleton class to determine their respective return values. For
dynamic skeletons (see Section 20.37), these functions use the
_primary_interface function to determine their return values.

Does this mean that a dynamic implementation needs the IFR?
If not, then how can _is_a be implemented for sub-types?

I note that the java mapping includes the method _all_interfaces in Servant
for precisely this reason...

Already resolved.