C++ All-in-One For Dummies, 4th Edition

Chapter 7

Splitting Up Source Code Files

IN THIS CHAPTER

Creating multiple source code files

Creating header files

Sharing variables among source files

Making use of the mysterious header wrappers

Just as you can divide your work into functions, so you can divide your work into multiple source code files. The main reason to do so is to help keep your project manageable. Also, with multiple source code files, you can have several people working on a single project, each working on a different source code file at the same time.

The key to multiple source files is knowing where to break the source code into pieces. As with anything else, if you break the source code in the wrong place, it will, well, break.

In this chapter, you discover how to divide your source code into multiple files (and in all the right places). The examples use Code::Blocks, but most modern IDEs work in about the same manner. You create multiple files and import them into a project (a description of what you want to do), which then manages the files for you and ensures that the right files are compiled at the ...