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Error to install Nokogiri on OSX 10.9 Maverick?

I upgraded my OSX (Lion) to Mavericks and I can't install Nokogiri for my projects. 30 Answers ...
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Realistic usage of the C99 'restrict' keyword?

...aw it mentioned. I read a brief description, stating that it would be basically a promise from the programmer that the pointer won't be used to point somewhere else. ...
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Get a random boolean in python?

... but I found that random.getrandbits(1) to be quite a lot faster. If you really want a boolean instead of a long then bool(random.getrandbits(1)) is still about twice as fast as random.choice([True, False]) Both solutions need to import random If utmost speed isn't to priority then random.choic...
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enum - getting value of enum on string conversion

...>> member.value 1 You could add a __str__ method to your enum, if all you wanted was to provide a custom string representation: class D(Enum): def __str__(self): return str(self.value) x = 1 y = 2 Demo: >>> from enum import Enum >>> class D(Enum): ...
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Positioning MKMapView to show multiple annotations at once

...tations I want to add to my MKMapView (it could 0-n items, where n is generally around 5). I can add the annotations fine, but I want to resize the map to fit all annotations onscreen at once, and I'm not sure how to do this. ...
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What's the difference between echo, print, and print_r in PHP?

...s, although such usage is rare; echo is slightly faster than print. (Personally, I always use echo, never print.) var_dump prints out a detailed dump of a variable, including its type and the type of any sub-items (if it's an array or an object). print_r prints a variable in a more human-readable f...
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Android: Bitmaps loaded from gallery are rotated in ImageView

When I load an image from the media gallery into a Bitmap, everything is working fine, except that pictures that were shot with the camera while holding the phone vertically, are rotated so that I always get a horizontal picture even though it appears vertical in the gallery. Why is that and how can...
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Detect Browser Language in PHP

... do you say they are one letter? Dutch (nl), Greek (el) and Slovenian (sl) all appear to be two letter: msdn.microsoft.com/en-us/library/ms533052(v=vs.85).aspx – Peter K. Nov 19 '12 at 17:35 ...
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Linux bcc tools使用总结(持续更新) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...后,手动Ctrl + C 结束统计,输出此段时间内各自耗时区间IO事件个数。 默认微秒区间,-m 参数则是毫秒区间。 # /usr/share/bcc/tools/biolatency Tracing block device I/O... Hit Ctrl-C to end. ^C usecs : count distribution ...
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Linux bcc tools使用总结(持续更新) - 操作系统(内核) - 清泛网 - 专注IT技能提升

...后,手动Ctrl + C 结束统计,输出此段时间内各自耗时区间IO事件个数。 默认微秒区间,-m 参数则是毫秒区间。 # /usr/share/bcc/tools/biolatency Tracing block device I/O... Hit Ctrl-C to end. ^C usecs : count distribution ...