Good afternoon

I am currently in C++ Programming I, so this probably comes as no surprise that I am confused -- a lot. 

Comments on a recent assignment are:

"Be sure to add embedded code documentation for code segments."

Can you give me some pointers/guidance on embedded code. 

The chapter discussed static_cast.  Is it possible that this is what is being suggested?  If so, do you have a video on static_cast because, although I read that portion of the chapter -- several times, I still do not understand its function :ermm:.  Thanks