Chapter 24 – Working with Multi-File Programs

1. Yes, and this is often the best place to declare a structure.
2. Yes, you can, but this is a really bad programming practice. You should define an array either in a function where it is used, in main(), or as a global variable (as we did with bRandomize).
3. Yes, you can, but this is a really bad programming practice. Instead, declare function prototypes in the header and define the functions in the source file.
4. You can define a function exactly once.
5. To prevent name clashes, in the header file, use the #ifndef _HEADER_NAME_H_, #define _HEADER_NAME_H_, and #endif macros around the contents of the header file.
6. Getting tricksy with the preprocessor not only takes an added amount of time to get right, but it also adds little to the overall reliability and maintainability of your programs. In other words, don't try to get tricksy with the preprocessor unless you have a good reason to and you absolutely must do...