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#pragma pack effect
...it on a 7 byte boundary will hurt performance. But putting it on a 16, 32, 64 or 4096 byte boundary buys you nothing above what the 8 byte boundary already gave you. You'll get the same performance from the CPU, while getting much worse cache utilization for the reasons outlined in that post.
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What are naming conventions for MongoDB?
...asz NurkiewiczTomasz Nurkiewicz
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Android: ProgressDialog.show() crashes with getApplicationContext
...getApplicationContext());
dialog.show();
}
});
Based on the previous answers that suggested the context was the wrong one, i changed the getApplicationContext() to retrieve the context from the View passed in to the buttons onClick method.
myButton.setOnClickListener(new...
AngularJS UI Router - change url without reloading state
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+100
Simply ...
PHP array_filter with arguments
...me, and is just as evil. Using it should be discouraged. The wacky class-based workaround given in the accepted answer is a better solution than using create_function() in this case.
– Charles
Mar 30 '11 at 17:43
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ros 基本调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的kdcom.dll文件，编译的时候还需要加上WINDK=1开关。而在64位的ros上，windbg是最主要的调试方法，和x64版本的kdcom.dll有很好的兼容性。
生成更多输出
如果想要得到更多有意义的输出，有必要额外开启verbosity功能。
编译时开启ver...
How to install grunt and how to build script with it
...OTE:
You can use grunt-init for creating Gruntfile.js if you want wizard-based creation instead of raw coding for step 5.
To do so, please follow these steps:
npm install -g grunt-init
git clone https://github.com/gruntjs/grunt-init-gruntfile.git ~/.grunt-init/gruntfile
grunt-init gruntfile
F...
Storing sex (gender) in database
I want to store a user's gender in a database with as little (size/performance) cost as possible.
8 Answers
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Loadbalancing web sockets
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Put a L3 load-balancer that distributes IP packets based on source-IP-port hash to your WebSocket server farm. Since the L3 balancer maintains no state (using hashed source-IP-port) it will scale to wire speed on low-end hardware (say 10GbE). Since the distribution is determi...
WebService Client Generation Error with JDK8
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Well, I found the solution. (based on http://docs.oracle.com/javase/7/docs/api/javax/xml/XMLConstants.html#ACCESS_EXTERNAL_SCHEMA)
Create a file named jaxp.properties (if it doesn't exist) under /path/to/jdk1.8.0/jre/lib and then write this line in it:
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