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Professional C++, Second Edition by Scott J. Kleper, Nicholas A. Solter, Marc Gregoire

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Chapter 27

Conquering Debugging

WHAT’S IN THIS CHAPTER?

  • What the Fundamental Law of Debugging, and bug taxonomies are
  • Tips for avoiding bugs
  • How to plan for bugs
  • The different kinds of memory errors
  • How to use a debugger to pinpoint code causing a bug

Your code will contain bugs. Every professional programmer would like to write bug-free code, but the reality is that few software engineers succeed in this endeavor. As computer users know, bugs are endemic in computer software. The software that you write is probably no exception. Therefore, unless you plan to bribe your co-workers into fixing all your bugs, you cannot be a Professional C++ programmer without knowing how to debug C++ code. One factor that often distinguishes experienced programmers from novices is their debugging skills.

Despite the obvious importance of debugging, it is rarely given enough attention in courses and books. Debugging seems to be the type of skill that everyone wants you to know, but no one knows how to teach. This chapter attempts to provide you with concrete guidelines and techniques for debugging even the most galling problems.

The contents include an introduction to the Fundamental Law of Debugging and bug taxonomies, followed by tips for avoiding bugs. Techniques for planning for bugs include error logging, debug traces, and asserts. The chapter concludes with specific tips for debugging the problems that arise, including techniques for reproducing bugs, debugging reproducible bugs, debugging ...

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