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What are bitwise shift (bit-shift) operators and how do they work?
I've been attempting to learn C in my spare time, and other languages (C#, Java, etc.) have the same concept (and often the same operators) ...
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How to read all files in a folder from Java?
... concern is efficiency, is it fast enough to be used for systems with thousands of files or is there a better alternative?
– Nitin Labhishetty
Mar 10 '14 at 15:28
17
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How do I install Maven with Yum?
...g not to learn much about either yum or maven. I've inherited this code and I don't want to spend more time than I have to in this environment.
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How to check if a number is a power of 2
...eturn (x != 0) && ((x & (x - 1)) == 0);
}
Explanation
First and foremost the bitwise binary & operator from MSDN definition:
Binary & operators are predefined for the integral types and bool. For
integral types, & computes the logical bitwise AND of its operands.
F...
What is the best way to dump entire objects to a log in C#?
... It also doesn't work for arrays (it just displays the type and the length of the array, but doesn't print its contents).
– Konrad Morawski
Sep 20 '12 at 6:57
5
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What are the drawbacks of Stackless Python? [closed]
I've been reading recently about Stackless Python and it seems to have many advantages compared with vanilla cPython. It has all those cool features like infinite recursion, microthreads, continuations, etc. and at the same time is faster than cPython (around 10%, if the Python wiki is to be bel...
How can I call controller/view helper methods from the console in Ruby on Rails?
...one app.get (a thread error ensues). Is there a way I can flush the system and execute more gets?
– JellicleCat
May 22 '12 at 17:53
2
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Postgres - FATAL: database files are incompatible with server
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If you recently upgraded to 11 or 12 from 10.x you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
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ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
...u.imageutil.aix
版本：5
发布日期：2022年3月8日
最低 API：19 (Android 4.4 KitKat)
下载链接
com.gordonlu.imageutil.aix
ImageUtil.aia - 示例项目
功能概述
ImageUtil 扩展提供了一系列强大的图像处理功能，包括...
“Thinking in AngularJS” if I have a jQuery background? [closed]
...ency injection (DI). If you come from a server-side language (from Java to PHP) you're probably familiar with this concept already, but if you're a client-side guy coming from jQuery, this concept can seem anything from silly to superfluous to hipster. But it's not. :-)
From a broad perspective, DI...