Hello,
afaik there is currently no plan to re-engineer the SSP to a C++ implementation at the moment.
Seamless integration in a C++ application would be the target for the next release.
In the meantime, you can refer to this slightly more complex procedure
en-eu.knowledgebase.renesas.com/.../How_to_Create_a_C___Project_in_the_Synergy_Platformthe
to use the SSP in a C++ project
Regards