C++ Language Tutorial Needs Upgrade?

[PWWWWR]

I've noticed several unknown techniques that the language tutorial doesn't cover that I still want to learn. Here are some:

#pragma once //!??!?!

Making libraries....(DLL's)

Well, I know what headers are, but maybe other people dont.

It also needs a better reference section with more function explinations (especially for HARDWARE :))

[Duthomhas]

This is a non-standard preprocessor directive that prevents a file from being included in a single compilation more than once.

Read more about it at the Wikipedia
http://en.wikipedia.org/wiki/Pragma_once