The C++ language is derived from C. With a few exceptions, it is a superset of C, meaning that everything available in C is also available in C++. C++ adds some simple enhancements to C's own features and some major new features that don't exist in C.
This chapter covers some of the differences in conventions between C and C++. It begins with a new way of handling input and output, which you'll need to know for later programs that print results on the screen. This chapter also covers C++ comments and function prototypes.