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Real world use cases of bitwise operators [closed]
...UIs used to rely on this for selection highlighting and other overlays, in order to eliminate the need for costly redraws. They're still useful in slow graphics protocols (i.e. remote desktop).
Those were just the first few examples I came up with - this is hardly an exhaustive list.
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Mixins vs. Traits
...s highly inconsistent and at least one of the points here is mostly wrong. PHP and Wikipedia (and according to @Sergio, also Scala) disagree with you about traits being stateless. I don't find this answer useful because it's made up of bare assertions, and it's unclear to me that this is anything mo...
Grep not as a regular expression
I need to search for a PHP variable $someVar . However, Grep thinks that I am trying to run a regex and is complaining:
6 ...
Getting started with Haskell
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I'm going to order this guide by the level of skill you have in Haskell, going from an absolute beginner right up to an expert. Note that this process will take many months (years?), so it is rather long.
Absolute Beginner
Firstly, Haskel...
libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
...明，libev 的成本要低得多，因此比 libevent 更快。API 设计问题也在结果中发挥作用，因为在使用计时器时，本机 API 可以比模拟 API 做得更好。尽管这使 libev 处于劣势（仿真层必须模拟其原生 API 没有的 libevent 的某些方面。它还...
Grunt watch error - Waiting…Fatal error: watch ENOSPC
...ll also persist across reboots. For more details: wiki.archlinux.org/index.php/Sysctl
– tnajdek
Sep 27 '13 at 9:20
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What is a memory fence?
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For performance gains modern CPUs often execute instructions out of order to make maximum use of the available silicon (including memory read/writes). Because the hardware enforces instructions integrity you never notice this in a single thread of execution. However for multiple threads or en...
技术和资本玩转创客圈 英特尔在中国的动作才刚刚开始 - 资讯 - 清泛网 - 专...
...2月的终极加速和路演，其中既有关注环保、医疗等社会问题的“智慧低碳社区”、“医院罗盘”项目，又有提升智能生活体验的“完美幻境”、“智能行车记录仪”、“图传机械臂”等智能硬件。
这些项目大多有一个特点——...
Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...哇，就一行代码啊，很爽吧~
爽完了，我们就来看看反射问题吧。因为不是系统给出的api，所以谷歌在不同的版本上用了不同的方法名来做处理，用反射的话我们就必须进行版本的判断，这是需要注意的，此外反射在性能方面确...
java.net.URLEncoder.encode(String) is deprecated, what should I use instead?
...rmat
UTF-16BE Sixteen-bit UCS Transformation Format, big-endian byte order
UTF-16LE Sixteen-bit UCS Transformation Format, little-endian byte order
UTF-16 Sixteen-bit UCS Transformation Format, byte order identified by an optional byte-order mark
Example:
import java.net.URLEnco...