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What is the correct answer for cout
...P0145R3 Refining Expression Evaluation Order for Idiomatic C++ for more details.
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What is the dependency inversion principle and why is it important?
... should depend upon abstractions.
Abstractions should never depend upon details. Details should depend upon abstractions.
As to why it is important, in short: changes are risky, and by depending on a concept instead of on an implementation, you reduce the need for change at call sites.
Effectivel...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...ens often, then multiple locks would increase parallelism. At the cost of maintainability, since more locking means more debugging of the locking.
How efficient is it to lock a mutex? I.e. how much assembler instructions are there likely and how much time do they take (in the case that the mutex...
【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...系统调用层直接调用的操作。udp_prot是底层协议的处理。可以看到相比TCP，UDP不用accept(),lis 创建udp socket
在socket()创建的时候，会设置对应协议的操作集。 inet_dgram_ops是系统调用层直接调用的操作。udp_prot是底层协议的处理。
...
What's the difference between utf8_general_ci and utf8_unicode_ci?
..., utf8 is a flawed UTF-8 implementation from early MySQL versions which remains only for backward compatibility. The fixed version was given the name utf8mb4.
Note: Newer versions of MySQL have updated Unicode sorting rules, available under names such as utf8mb4_0900_ai_ci for equivalent rules based...
Algorithm to compare two images
...the copy may do stuff like rotating, making negative, or adding trivial details (as well as changing the dimension of the image).
...
裁员！裁员！创业者们的2016“寒冬大逃杀” - 资讯 - 清泛网 - 专注IT技能提升
...般是先砍补贴、市场费用；接下来，边缘业务和边缘部门可以精简的精简；最后，就是裁人。”一家基金的合伙人对36kr说。
裁员，已是应对寒冬的最后一招。
二、 独角兽们
即使是最强壮、业务足够稳固的独角兽们，也在...
How to convert number to words in java
..." ");
}
/**
* testing
* @param args
*/
public static void main(String[] args) {
System.out.println("*** " + EnglishNumberToWords.convert(0));
System.out.println("*** " + EnglishNumberToWords.convert(1));
System.out.println("*** " + EnglishNumberToWords.convert(16));
S...
.a: error adding symbols: File format not recognized 原因 - 操作系统(...
...译出来的库文件，导致不能识别报错。
一般地，高版本可以链接成功低版本的，反之则不能。
VS 2015 Preview版已经发布，支持Android开发 - IT产品资讯 - 清泛网 - 专注IT技能提升
...得多，它最终将能独立工作，其它集成开发环境如Eclipse可以使用微软的 Android模拟器。VS 2015支持Java、ANT、SQL LITE和WebSocket4web，提供原生的 Git支持。一个新微软正在浮现？
Visual studio 2015 CTP6更新日志
此版本几乎解决了已知的 is...