If you take a look at Docker's features, most of them are already provided by LXC. 5 Answers ...

A fairly common requirement in database applications is to track changes to one or more specific entities in a database. I've heard this called row versioning, a log table or a history table (I'm sure there are other names for it). There are a number of ways to approach it in an RDBMS--you can wri...

I don't fully get what Node.js is all about. Maybe it's because I am mainly a web based business application developer. What is it and what is the use of it? ...

...at won't work as intended; you will still get copies. I'm pretty surprised by this, as I'd thought that initializer_list existed to keep an array of temporaries until they were move'd. begin and end for initializer_list return const T *, so the result of move in your code is T const && — ...

... There are three implementations that may be considered: Bash builtin getopts. This does not support long option names with the double-dash prefix. It only supports single-character options. BSD UNIX implementation of standalone getopt command (which is what MacOS...

...布了新的考核目标。简单来说，这家公司将在自己的销售BD体系中，实行末位淘汰。 具体规则是：一二三线城市的后15%员工，四五线城市的后20%员工，进入淘汰预警名单，两个月未达标，就要裁掉。对于这家有着至少3.5万名员...

...Fourier Transform coefficients of the audio signal. These coefficients can be used to get the frequency content of the audio. The FFT is defined for complex valued input functions, so the coefficients you get out will be imaginary numbers even though your input is all real values. In order to get th...

I've finished working on a feature branch feature-x . I want to merge results back to the default branch and close feature-x in order to get rid of it in the output of hg branches . ...

I'm trying to understand what the difference is between two options 4 Answers 4 ...

... It is bad form to use this in lock statements because it is generally out of your control who else might be locking on that object. In order to properly plan parallel operations, special care should be taken to consider possible d...