Defining Your Own C++ Functions

by Larry Ullman, Andreas Signer

Need to know HTML and PHP programming right now, but don't want a 1,000-page tome? Check out the Peachpit's new Short Cuts! Quick PDF guides that are...Smart...Handy...Concise. This mini guide covers exactly what you need to know about defining your own C++ functions, and nothing more. Why define functions? The premise behind any function in any language is simple: encapsulate a process under one name. Then, by calling that name (invoking the function), you can repeat that sequence of steps with ease. New to C++? No problem. You'll get all the fundamentals, techniques, and key concepts you need to understand how to define and call your own functions. First you'll create a simple function, one that takes no arguments and returns no values. Then you'll begin writing functions that take required arguments, optional arguments, and overloading. The guide concludes with a lesson on variable scope: understanding where variables exist.

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Published August 25, 2006

About the author

Larry Ullman is a writer, Web and software developer, trainer, instructor, speaker, and consultant. He has written 23 books and numerous articles. His books have sold over 350,000 copies world wide in more than 20 languages. As his readers, students, and co-workers can attest, Larry’s strength is in Translating Geek into English: converting the technical and arcane into something comprehensible and useful.