Why is driver support for C++ not available?
Hello @mavathurpruthvi and welcome to the Neo4j community 
There is a driver for C but it looks like it supports C++ but I never tried and I don't know if it supports the latest version of Neo4j (4.0).
Anyway, if you cannot use this driver or another one, there is still the HTTP API for Neo4j.
Regards,
Cobra