C++ can be supported on RLP but as of now we do not. If you notice we alway say C/assembly but not c++
If you really want to do it then you have to write C++ runtime initialization code that goes through all constructors. This requires good knowledge of the internals of C++
Ok I was misled by the C++ label in the RLP class description . Right under the text Extensions are accessed through the RLPext structure. There is a label/title that says C++ and I assumed that C++ code was supported. In fact there are I couple of times that C++ label/title was used in the class description. I assume it is mistyped.