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What is the best way to create constants in Objective-C
I am creating a Reddit client for learning purposes. I need to have a file with constants in it. I was thinking about importing the file in the Reddit-Prefix.pch file to make the constants available to all the files. Is it a good way of doing things? Also, I've done my research and found several...
Fastest sort of fixed length 6 int array
...inds of data. For example, insertion sort performs better on sorted or almost-sorted dat, so it will be the better choice if there's an above-average chance of almost-sorted data.
The algorithm you posted is similar to an insertion sort, but it looks like you've minimized the number of swaps at th...
Appropriate hashbang for Node.js scripts
...e environments. Particularly for me, I'm switching back and forth between OS X and Ubuntu. In the former, Node is installed as node , but in the latter it is nodejs . At the top of my script, I can have:
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How many threads is too many?
... into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
...
How to read the Stock CPU Usage data
...CPU usage, and the green bar underneath it shows the CPU time spent in compositing the screen. Note: You cannot turn this feature off once it is on, without restarting the emulator. developer.android.com/tools/debugging/debugging-devtools.html
– Rolf ツ
Sep 2...
Android: How can I pass parameters to AsyncTask's onPreExecute()?
...} // doInBackground() et al. }
– Steven Meliopoulos
Jun 20 '10 at 21:48
1
Yup, that was prett...
Network usage top/htop on Linux
...ol. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process.
NetHogs does not rely on a special kernel module to be loaded. If there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing ...
C# vs C - Big performance difference
...seems that what you're measuring is basically "which compiler inserts the most debugging overhead". And turns out the answer is C. But that doesn't tell us which program is fastest. Because when you want speed, you enable optimizations.
By the way, you'll save yourself a lot of headaches in the lon...
Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
...ows by googling either Unicode Triangles or Unicode Arrows. Starting with iOS6 Apple changed the character to be an emoji character with a border. To disable the border I add the 0xFE0E Unicode Variation Selector.
NSString *backArrowString = @"\U000025C0\U0000FE0E"; //BLACK LEFT-POINTING TRIANGLE ...
Override Java System.currentTimeMillis for testing time sensitive code
....currentTimeMillis , other than manually changing the system clock on the host machine?
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