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An efficient way to transpose a file in Bash
...real 0m0.390s
user 0m0.370s
sys 0m0.010s
EDIT by Ed Morton (@ghostdog74 feel free to delete if you disapprove).
Maybe this version with some more explicit variable names will help answer some of the questions below and generally clarify what the script is doing. It also uses tabs as the...
dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib
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This was my resolution as well. I have an existing iOS app project (ObjC) to which I'm adding a Today Extension (new target in the project, extension is a plugin for the main app). I had to go into the app target settings and enable that Build Setting and viola... problem went...
How is malloc() implemented internally? [duplicate]
...ran out of elements. This would be quite space efficient but would not be possible with every design. If you just get another bucket via sbrk/mmap that might be faster and even easier, but not as space efficient. Also, the design must of course take into account that "free" needs to make space avail...
Concurrent.futures vs Multiprocessing in Python 3
...if any) of a speedup you get depends on the details of your hardware, your OS, and especially on how much inter-process communication your specific tasks require. Under the covers, all inter-process parallelization gimmicks rely on the same OS primitives - the high-level API you use to get at those...
Keyboard Interrupts with python's multiprocessing Pool
...ever returns, so the interrupt never happens. KeyboardInterrupt should almost certainly interrupt a condition wait.
Note that this doesn't happen if a timeout is specified; cond.wait(1) will receive the interrupt immediately. So, a workaround is to specify a timeout. To do that, replace
res...
What is the native keyword in Java for?
While playing this puzzle (It's a Java keyword trivia game), I came across the native keyword.
10 Answers
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How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?
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Just use Ctrl+K, Ctrl+D.
(for OS X: Cmd+K, Cmd+D)
Needs a bit of practice, but gets the job done!
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How does Apple find dates, times and addresses in emails?
In the iOS email client, when an email contains a date, time or location, the text becomes a hyperlink and it is possible to create an appointment or look at a map simply by tapping the link. It not only works for emails in English, but in other languages also. I love this feature and would like to ...
Run PHP Task Asynchronously
I work on a somewhat large web application, and the backend is mostly in PHP. There are several places in the code where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when they h...
How do I prevent the iPhone screen from dimming or turning off while my application is running?
... answered Sep 24 '08 at 6:07
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