- Hardcover: 306 pages
- Publisher: Addison-Wesley; 1st edition (July 27, 2002)
- Language: English
- ISBN-10: 0201914654
- ISBN-13: 978-0201914658
- Product Dimensions: 6.5 x 0.8 x 9.4 inches
- Shipping Weight: 1.3 pounds
- Average Customer Review: 28 customer reviews
- Amazon Best Sellers Rank: #1,047,125 in Books (See Top 100 in Books)
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Hacker's Delight 1st Edition
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From the Back Cover
"This is the first book that promises to tell the deep, dark secrets of computer arithmetic, and it delivers in spades. It contains every trick I knew plus many, many more. A godsend for library developers, compiler writers, and lovers of elegant hacks, it deserves a spot on your shelf right next to Knuth."--Josh Bloch
"When I first saw the title, I figured that the book must be either a cookbook for breaking into computers (unlikely) or some sort of compendium of little programming tricks. It's the latter, but it's thorough, almost encyclopedic, in its coverage."--Guy Steele
These are the timesaving techniques relished by computer hackers--those devoted and persistent code developers who seek elegant and efficient ways to build better software. The truth is that much of the computer programmer's job involves a healthy mix of arithmetic and logic. In Hacker's Delight , veteran programmer Hank Warren shares the tricks he has collected from his considerable experience in the worlds of application and system programming. Most of these techniques are eminently practical, but a few are included just because they are interesting and unexpected. The resulting work is an irresistible collection that will help even the most seasoned programmers better their craft.
Topics covered include:
- A broad collection of useful programming tricks
- Small algorithms for common tasks
- Power-of-2 boundaries and bounds checking
- Rearranging bits and bytes
- Integer division and division by constants
- Some elementary functions on integers
- Gray code
- Hilbert's space-filling curve
- And even formulas for prime numbers!
This book is for anyone who wants to create efficient code. Hacker's Delight will help you learn to program at a higher level--well beyond what is generally taught in schools and training courses--and will advance you substantially further than is possible through ordinary self-study alone.
About the Author
Henry S. Warren, Jr., has had a forty-year career with IBM, spanning from the IBM 704 to the PowerPC. He has worked on various military command and control systems and on the SETL project under Jack Schwartz at New York University. Since 1973 he has been with IBM's Research Division, focusing on compilers and computer architectures. Hank currently works on the Blue Gene petaflop computer project. He received his Ph.D. in computer science from the Courant Institute at New York University.
Top customer reviews
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This book is a collection of tricks that show the reader better ways to do things they already know how to do. And it's also a book that can give the reader insight into different approaches and mechanisms for solving problems.
Computer programmers translate their ideas and requirements into any of several computer languages. Those expressions are limited by the language the programmer is using, and maybe even the machine the programmer is targeting. But there is a wide continum of expressions that result in the same -- hopefully correct -- results. Choosing the most efficient, and most elegant, expression to some is "real" hacking.
This book is for real hackers. It's a great collection of tricks for performing usually simple operations in an elegant way. What's elegant? Well, elegant is efficeint. If there's a side-effect of an elegant operation, it turns out that side-effect is probably useful and not simply discarded.
This book catalogs insights into concrete binary math, shortcuts derived from different boolean operators, and even approaches some interesting numerical analysis problems.
If you already know how to write software, and you already know you want to find faster or more efficient ways to check for overflows on integers, divide nubmers, count bits, search for binary patterns, or do other twiddling, then this book is for you.
If the application of such techniques doesn't seem important to you, then this book probably isn't going to be of interest to you.
This book also *explains* the tricks very clearly. That's why it rocks. Warren doesn't talk to you like a professor, but like a good friend. He explains stuff, often in plain English, the way we all do when we really want someone to understand what we mean.
He uses some math too, but only when really appropriate, never in a pedantic way or to impress us with his vast knowledge (like a professor would).
This book sports a quick little introduction to RISC assembly, a couple of silly little poems, formulas for prime numbers... how can I explain it?
In any way, buy this book, it is worth every penny and something you must read if you are CS student or you have interest in programming and math.