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What is a “static” function in C?
...nctions are functions that are only visible to other functions in the same file (more precisely the same translation unit).
EDIT: For those who thought, that the author of the questions meant a 'class method': As the question is tagged C he means a plain old C function. For (C++/Java/...) class met...
Why do I need to override the equals and hashCode methods in Java?
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Joshua Bloch says on Effective Java
You must override hashCode() in every class that overrides equals(). Failure to do so will result in a violation of the general contract for Object.hashCode(), which will prevent your class from functioning properly in conjunction with all...
How do I send a file as an email attachment using Linux command line?
...server that uses mysqldump to back up each of my MySQL databases to .sql files and packages them together as a compressed .tar file. The next step I want to accomplish is to send that tar file through email to a remote email server for safekeeping. I've been able to send the raw script in the bo...
How to duplicate sys.stdout to a log file?
...ures the output is in the correct order)
sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
tee = subprocess.Popen(["tee", "log.txt"], stdin=subprocess.PIPE)
os.dup2(tee.stdin.fileno(), sys.stdout.fileno())
os.dup2(tee.stdin.fileno(), sys.stderr.fileno())
print "\nstdout"
print >>sys.stderr...
Delete files older than 15 days using PowerShell
I would like to delete only the files that were created more than 15 days ago in a particular folder. How could I do this using PowerShell?
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Two way sync with rsync
...a folder a/ and a remote folder A/.
I now run something like this on a Makefile:
10 Answers
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How to do something to each file in a directory with a batch script
How do you iterate over each file in a directory with a .bat or .cmd file?
6 Answers
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Android and setting alpha for (image) view alpha
...e alternative is to use View.setAlpha(float) whose XML counterpart is android:alpha. It takes a range of 0.0 to 1.0 instead of 0 to 255. Use it e.g. like
<ImageView android:alpha="0.4">
However, the latter in available only since API level 11.
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Resize svg when window is resized in d3.js
... I can't agree less. The method of cminatti will work on all d3js files that we deal with. This method of transforming with a resize per chart is overkill. Also, it needs to be rewritten for every possible chart that we could think up. The method mentioned above works for everything. I've t...
Share variables between files in Node.js?
Here are 2 files:
6 Answers
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