Additional Resources
My favorite reference on code tuning is Writing Efficient Programs (Bentley, Englewood Cliffs, NJ: Prentice Hall, 1982). The book is out of print but worth reading if you can find it. It's an expert treatment of code tuning, broadly considered. Bentley describes techniques that trade time for space and space for time. He provides several examples of redesigning data types to reduce both space and time. His approach is a little more anecdotal than the one taken here, and his anecdotes are interesting. He takes a few routines through several optimization steps so that you can see the effects of first, second, and third attempts on a single problem. Bentley strolls through the primary contents of the book in 135 ...
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