C++ is a programming language, more specifically an object orientated pre-processor for C and has the processing power that C lacks in order to run higher level languages.
The language has been used in embedded programming and is also widely used in projects running Linux.
It adds layers of abstractions, classes and objects. By adding these and by using Linux, C++ lets developers extend programming code for embedded and IoT code.
C++ has inspired others languages including Java, Python C#, D and more.