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Store boolean value in SQLite

...rate Boolean storage class. Instead, Boolean values are stored as integers 0 (false) and 1 (true). share | improve this answer | follow | ...
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Find the version of an installed npm package

...lt in: projectName@projectVersion /path/to/project/folder └── grunt@0.4.1 Alternatively, you can just run npm list without passing a package name as an argument to see the versions of all your packages: ├─┬ cli-color@0.1.6 │ └── es5-ext@0.7.1 ├── coffee-script@1.3.3 ...
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Error to install Nokogiri on OSX 10.9 Maverick?

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Java - get pixel array from image

...ation I was able to reduce the time of processing the pixels by more than 90% by just switching from the first approach to the second! Here is a comparison I've setup to compare the two approaches: import java.awt.image.BufferedImage; import java.awt.image.DataBufferByte; import java.io.IOExceptio...
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Find which version of package is installed with pip

... 1070 As of pip 1.3, there is a pip show command. $ pip show Jinja2 --- Name: Jinja2 Version: 2.7.3...
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Performance of Arrays vs. Lists

... List/for: 1971ms (589725196) Array/for: 1864ms (589725196) List/foreach: 3054ms (589725196) Array/foreach: 1860ms (589725196) based on the test rig: using System; using System.Collections.Generic; using System.Diagnostics; static class Program { static void Main() { List<int&g...
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Sort points in clockwise order?

...ook like this: bool less(point a, point b) { if (a.x - center.x >= 0 && b.x - center.x < 0) return true; if (a.x - center.x < 0 && b.x - center.x >= 0) return false; if (a.x - center.x == 0 && b.x - center.x == 0) { if (a.y - c...
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一分钟明白 VS manifest 原理 - C/C++ - 清泛网 - 专注C/C++及内核技术

...本,相反。 为什么我的manifest明明指明 name="Microsoft.VC80.DebugCRT" version="8.0.50608.0", 但是用depends.exe工具却发现引用的是8.00.50727.42呢? 因为在C:/WINDOWS/WinSxS/Policies下,有publisher configuration file也叫policy文件,如8.0.50727.42.policy文件...
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C++/COM VARIANT实现二维数组 - C/C++ - 清泛网 - 专注C/C++及内核技术

...ND sab[2]; /*用于定义数组的维数和下标的起始值*/   sab[0].cElements = 2;   sab[0].lLbound = 0;   sab[1].cElements = 2;   sab[1].lLbound = 0;   /*创建一个2*2的类型为long的二维数组*/   SAFEARRAY* psa = SafeArrayCreate(vt, sizeof(sab)/sizeof(SAF...
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iOS White to Transparent Gradient Layer is Gray

... clearColor has a black color channel with an alpha of 0, so I had to use [UIColor colorWithWhite:1 alpha:0] and it works fine. share | improve this answer | ...