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How do I find the location of the executable in C? [duplicate]
...e path, ie, it contains a /, determine the current working directory with getcwd() and then append argv[0] to it.
If argv[0] is a plain word, search $PATH looking for argv[0], and append argv[0] to whatever directory you find it in.
Note that all of these can be circumvented by the process which i...
Deleting all pending tasks in celery / rabbitmq
...ee an option to pick a different named queue.
Here's my process:
$ sudo /etc/init.d/celeryd stop # Wait for analytics task to be last one, Ctrl-C
$ ps -ef | grep analytics # Get the PID of the worker, not the root PID reported by celery
$ sudo kill <PID>
$ sudo /etc/init.d/celeryd stop # ...
Xcode 4.2 debug doesn't symbolicate stack call
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Nothing I tried would fix this (tried both compilers, both debuggers, etc.)
After upgrading XCode for the iOS 5 update, no stack traces seemed to work.
However, I have found an effective work-around - creating my own exception handler (which is also useful for other reasons). First, create a f...
Replacement for deprecated sizeWithFont: in iOS 7?
... a UILabel (not ALWAYS the case, but often so), to prevent duplicated code/etc, you can also replace [UIFont systemFontOfSize:17.0f] with label.font - helps code maintenance by referencing existing data vs. you typing it multiple times or referencing constants all over the place, etc
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Argument list too long error for rm, cp, mv commands
...eading NULL-delimited input. And the whole dangerous (broken, exploitable, etc.), is fairly ridiculous. Undoubtedly you should be careful when using xargs, but it is not quite eval/evil.
– Reinstate Monica Please
Jul 25 '14 at 22:37
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What is the purpose of Serialization in Java?
...rbs, biomedical abbreviations, words semantically connected to each other, etc. The contents of these files are simple: words!
Now for each project, I needed to read the words from each of these files and put them into different arrays; as the contents of the file never changed, it became a common...
How do you use vim's quickfix feature?
...own, [<Space> and ]<Space> insert blank lines above and below, etc. I was surprised nobody mentioned it here before; that's probably because it didn't exist until January 2010, though the question was asked in 2009.
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What exactly are “spin-locks”?
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When you use regular locks (mutexes, critical sections etc), operating system puts your thread in the WAIT state and preempts it by scheduling other threads on the same core. This has a performance penalty if the wait time is really short, because your thread now has to wait for ...
Why use apparently meaningless do-while and if-else statements in macros?
...ive in the real world. Unless we can guarantee that all the if statements, etc, in our code use braces, then wrapping macros like this is a simple way of avoiding problems.
– Steve Melnikoff
Nov 20 '13 at 17:16
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How to read from standard input in the console?
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Good answer, but this fails when I try using backspace, etc keys
– kumarharsh
Feb 16 '17 at 8:33
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