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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?

... 101 I'm not AMD or speaking for them, but I would have done it the same way. Because zeroing the hi...
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Visual Studio 2013 and BitBucket

Visual Studio 2013 apparently has some nice slick Git integration. 5 Answers 5 ...
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Parsing a comma-delimited std::string [duplicate]

...ss.peek() == ',') ss.ignore(); } for (std::size_t i = 0; i < vect.size(); i++) std::cout << vect[i] << std::endl; } share | improve this answer ...
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Error to run Android Studio

...ll went right the answer should be something like this: java version "1.8.0_91" Java(TM) SE Runtime Environment (build 1.8.0_91-b14) Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode) Check what compiler is used javac -version It should show something like this javac 1.8.0_91 F...
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mongoDB/mongoose: unique if not null

...types.html – damphat Oct 21 '13 at 10:15 I don't think this answers the question correctly, as a few documents without...
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Why are Standard iterator ranges [begin, end) instead of [begin, end]?

... +50 The best argument easily is the one made by Dijkstra himself: You want the size of the range to be a simple difference end − beg...
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Change bootstrap navbar collapse breakpoint without using LESS

...8px, the navbar changes to collapsed mode. I want to change this width to 1000px so when the browser is below 1000px the navbar changes to collapsed mode. I want to do this without using LESS, I am using stylus not LESS. ...
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Bash script absolute path with OS X

... [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}" } realpath "$0" This prints the path verbatim if it begins with a /. If not it must be a relative path, so it prepends $PWD to the front. The #./ part strips off ./ from the front of $1. ...
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How can I quantify difference between two images?

... img2 = to_grayscale(imread(file2).astype(float)) # compare n_m, n_0 = compare_images(img1, img2) print "Manhattan norm:", n_m, "/ per pixel:", n_m/img1.size print "Zero norm:", n_0, "/ per pixel:", n_0*1.0/img1.size How to compare. img1 and img2 are 2D SciPy arrays here: def comp...
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Difference between >>> and >>

...ss of the number. For example: -2 represented in 8 bits would be 11111110 (because the most significant bit has negative weight). Shifting it right one bit using arithmetic shift would give you 11111111, or -1. Logical right shift, however, does not care that the value could possibly represent ...