By Andy Oram, Greg Wilson
This ebook is a set of many articles via diversified authors, that is speculated to remove darkness from what they behold as attractive engineering. Now it truly is stated that attractiveness is within the eye of beholder, and a few readers could be surprised through attractiveness and aha moments throughout the publication. in spite of the fact that to me it appears like such a lot articles describe how authors used the obvious logic to architect this or that, and that stunning aha second to behold is nowhere to be visible. i used to be tempted to place the booklet down as a rule, yet saved on studying merely in hopes that subsequent bankruptcy via diversified writer approximately various subject might make it eventually worthy it.
And one bankruptcy did it! Titled "Accelerated inhabitants count number" through Henry S. Warren, Jr (which is set calculating bit counts in arrays) is really breathtaking and encouraging. Now, is it worthy purchasing this publication only for one small yet first-class article? might be, because A) it is that sturdy, and B) i will not locate it pointed out wherever else, together with the really fabulous "Hacker's pride" by way of similar Henry S. Warren Jr. (the "Hacker's pride" describes cool methods within the bit counting quarter, yet does not point out CSA).
If you have an interest within the premise of this booklet, here's my recommendation:
1. purchase the "Programming Pearls", and get to grasp the true appealing code one zero one via heart
2. purchase the "Hacker's Delight", and retain is as a reference at the bit twiddling algorithms
3. cease on the library or book place for quarter-hour, and browse the "Accelerated inhabitants count number" from the "Beautiful Code"
Read or Download Beautiful Code: Leading Programmers Explain How They Think (Theory in Practice (O'Reilly)) PDF
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Extra info for Beautiful Code: Leading Programmers Explain How They Think (Theory in Practice (O'Reilly))
Think of the repository as an array of revision numbers, stretching off into infinity. By convention, revision 0 is always an empty directory. In Figure 2-1, revision 1 has a tree hanging off it (typically the initial import of content into the repository), and no other revisions have been committed yet. The boxes represent nodes in this virtual filesystem: each node is either a directory (labeled DIR in the upper-right corner) or a file (labeled FILE). What happens when we modify tuna? First, we make a new file node, containing the latest text.
Although the adjunct behaviors did usually line up with editor call boundaries, they often weren’t appropriate at all call boundaries, or even at most of them. The result was an overly high infrastructure-to-work ratio: by setting up an entire parallel editor, we were misleadingly implying to readers of the code that the adjunct behaviors would be invoked more often than they actually were. 26 CHAPTER TWO Having gone as far as we could with editor composition and then retreated, we were still free to implement it by hand when we really wanted it, however.
And as if to confirm suspicions about the origins of good design, the delta editor was created by a single person over the course of a few hours (although that person was very familiar with the problem and the code base). To understand what makes the delta editor beautiful, we must start by examining the problem it solves. Version Control and Tree Transformation Very early in the Subversion project, the team realized we had a general task that would be performed over and over: that of minimally expressing the difference between two similar (usually related) directory trees.