Bug Extermination Techniques
In This Chapter
Defining a bug and why you should squash it
Recognizing types of program bugs you may encounter
Using techniques for debugging your code
Using the VBA built-in debugging tools
If the word bugs conjures up an image of a cartoon rabbit, this chapter can set you straight. Simply put, a bug is an error in your programming. Here I cover the topic of programming bugs — how to identify them and how to wipe them off the face of your module.
Species of Bugs
Welcome to Entomology 101. The term program bug, as you probably know, refers to a problem with software. In other words, if software doesn’t perform as expected, it has a bug. Fact is, all major software programs have bugs — lots of bugs. Excel itself has hundreds (if not thousands) of bugs. Fortunately, the vast majority of these bugs are relatively obscure and appear in only very specific circumstances.
When you write nontrivial VBA programs, your code probably will have bugs. This is a fact of life and not necessarily a reflection of your programming ability. The bugs may fall ...