What I meant to say:
C++ protects data by encapsulation, for example if you define int ii inside a class this integer is only seen by the class members and non existance to the outside world, it can only be accessed by a member function.
In C language treat the data defined inside a module like C++ class and never access it directly, always use functions to access the data.
I use both C and C++ coments in my programs.
Regards
Mahmood