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Provides information on the techniques of debugging software and code.
When the pressure is on to resolve an elusive software or hardware glitch, what’s needed is a cool head courtesy of a set of rules guaranteed to work on any system, in any circumstance. Written in a frank but engaging style, this book provides simple, foolproof principles guaranteed to help find any bug quickly. Recognized tech expert and author David Agans changes the way you think about debugging, making those pesky problems suddenly much easier to find and fix. Agans identifies nine simple, practical rules that are applicable to any software application or hardware system, which can help detect any bug, no matter how tricky or obscure. Illustrating the rules with real-life bug-detection war stories, Debugging shows you how to: Understand the system: how perceiving the ""roadmap"" can hasten your journey Quit thinking and look: when hands-on investigation can’t be avoided Isolate critical factors: why changing one element at a time can be an essential tool Keep an audit trail: how keeping a record of the debugging process can win the day Whether the system or program you’re working on has been designed wrong, built wrong, or used wrong, Debugging helps you think correctly about bugs, so the problems virtually reveal themselves.
The book teaches How to Approach Software Debugging As a Reproducible Science. Noting in life is certain except death, taxes, and software bugs. Effective debugging involves for more than walking through code with a debugger. This book recognized this and teaches a mindset that allows you to reliably find and fix bugs. It sets out to make debugging less baffling, faster, and more effective by providing you with the knowledge and techniques needed to rapidly identify, track down, and repair bugs. It goes further by offering practical tips on minimizing bugs and making them easier to find when they do occur. Learn to use techniques that have been developed over decades by experienced professionals!Chapter 1: Introduction to DebuggingChapter 2: Case Studies of Famous (and Not So Famous) BugsChapter 3: What are Bugs?Chapter 4: Life Cycle of a BugChapter 5: A Bug TaxonomyChapter 6: Detective WorkChapter 7: Debugging Tools and When to Use ThemChapter 8: The General Process of DebuggingChapter 9: Debugging TechniquesChapter 10: Debugging Different Application TypesChapter 11: Post DebuggingChapter 12: PrebuggingChapter 13: TestingChapter 14: MaintenanceChapter 15: Debugging as a Profession
Prevent program bugs right from the start and quickly exterminate existing ones! Bug Proofing VISUAL BASIC(r) Let's face it, most programs with more than ten lines of code contain bugs. And as you know, the longer a bug exists in a system, the harder it becomes to locate and repair. Help is here! Packed with code, this practical guide shows you how to write effective, error-free programs and, best of all, how to test your programs at crucial stages of development. You'll find out how to handle unexpected bugs that do occur and how to locate and fix them quickly. You'll get bug prevention and repair techniques that just aren't available anywhere else! You'll get the kind of advice and information that usually only comes from years and years of hard-won experience! You'll find out: * How to design bug-free programs * How to code proactively to prevent bugs before they start * How to write code that exposes bugs instead of hiding them * How to catch bugs before they do any serious harm * How to find bugs using tools like the debugger and code profiler * How to use debug and runtime versions of a program to make debugging easier * How to use On Error statements to handle unexpected conditions * How to record information automatically, so you can fix bugs after users encounter them * How to use proven methods to find errors quickly * How to create and analyze special foolproof tests for errors
An Essential Reference for Intermediate and Advanced R Programmers Advanced R presents useful tools and techniques for attacking many types of R programming problems, helping you avoid mistakes and dead ends. With more than ten years of experience programming in R, the author illustrates the elegance, beauty, and flexibility at the heart of R. The book develops the necessary skills to produce quality code that can be used in a variety of circumstances. You will learn: The fundamentals of R, including standard data types and functions Functional programming as a useful framework for solving wide classes of problems The positives and negatives of metaprogramming How to write fast, memory-efficient code This book not only helps current R users become R programmers but also shows existing programmers what’s special about R. Intermediate R programmers can dive deeper into R and learn new strategies for solving diverse problems while programmers from other languages can learn the details of R and understand why R works the way it does.
Debugging is crucial to successful software development, but even many experienced programmers find it challenging. Sophisticated debugging tools are available, yet it may be difficult to determine which features are useful in which situations. The Art of Debugging is your guide to making the debugging process more efficient and effective. The Art of Debugging illustrates the use three of the most popular debugging tools on Linux/Unix platforms: GDB, DDD, and Eclipse. The text-command based GDB (the GNU Project Debugger) is included with most distributions. DDD is a popular GUI front end for GDB, while Eclipse provides a complete integrated development environment. In addition to offering specific advice for debugging with each tool, authors Norm Matloff and Pete Salzman cover general strategies for improving the process of finding and fixing coding errors, including how to: –Inspect variables and data structures –Understand segmentation faults and core dumps –Know why your program crashes or throws exceptions –Use features like catchpoints, convenience variables, and artificial arrays –Avoid common debugging pitfalls Real world examples of coding errors help to clarify the authors’ guiding principles, and coverage of complex topics like thread, client-server, GUI, and parallel programming debugging will make you even more proficient. You'll also learn how to prevent errors in the first place with text editors, compilers, error reporting, and static code checkers. Whether you dread the thought of debugging your programs or simply want to improve your current debugging efforts, you'll find a valuable ally in The Art of Debugging.
Software has bugs. Period. That's true, unfortunately. Even the good old "hello, world" program, known to virtually every C and C++ programmer in the world, can be considered to be buggy. Developing software means having to deal with defects; old ones, new ones, ones you created yourself and those that others brought to life. Software developers debug programs for a living. Hence, good debugging skills are a must-have. That said, I always found it regretable that debugging is hardly taught in engineering schools. Well, it is a tricky subject, and there are no good textbooks. The latter can be helped, I thought. That's how the idea for this book was born. "The Developer's Guide to Debugging" is a book for both professional software developers seeking to broaden their skills and students that want to learn the tricks of the trade from the ground up. With small inlined examples and exercises at the end of each chapter it is well suited to accompany a CS course or lecture. At the same time it can be used as a reference used to address problems as the need arises. This book goes beyond the level of simple source code debugging scenarios. In addition, it covers the most frequent real-world problems from the areas of program linking, memory access, parallel processing and performance analysis. The picture is completed by chapters covering static checkers and techniques to write code that leans well towards debugging. While the focus lies on C and C++, the workhorses of the software industry, one can apply most principles described in "The Developer's Guide to Debugging" to programs written in other languages. The techniques are not restricted to a particular compiler, debugger or operating system. The examples are structured such that they can be reproduced with free open-source software.
In the course of their 20+-year engineering careers, authors Brian Fitzpatrick and Ben Collins-Sussman have picked up a treasure trove of wisdom and anecdotes about how successful teams work together. Their conclusion? Even among people who have spent decades learning the technical side of their jobs, most haven’t really focused on the human component. Learning to collaborate is just as important to success. If you invest in the "soft skills" of your job, you can have a much greater impact for the same amount of effort. The authors share their insights on how to lead a team effectively, navigate an organization, and build a healthy relationship with the users of your software. This is valuable information from two respected software engineers whose popular series of talks—including "Working with Poisonous People"—has attracted hundreds of thousands of followers.
The only two eternals of software development are writing the code - and then debugging it. Effective debugging involves far more than walking through code with a debugger. This book recognizes that and sets out to make debugging less baffling, faster, and more effective by providing readers with the knowledge, tips, and techniques needed to rapidly identify, track down, and repair bugs. It goes further by offering practical tips on minimizing bugs and making them easier to find when they do occur. It includes chapters on testing and maintenance as they relate to debugging. Each chapter concludes with a "bug problem" and answers to these problems are provided in the last chapter. Above all, this is a book written by developers who've spent years tracking down bugs and offers practical, hands-on advice to make that task more predictable.