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When you exit a C application, is the malloc-ed memory automatically freed?
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It depends on the operating system. The majority of modern (and all major) operating systems will free memory not freed by the program when it ends.
Relying on this is bad practice and it is better to free it explicitly. The issue isn't just that your code looks bad. You may decide y...
How do I remove the “extended attributes” on a file in Mac OS X?
...Script script that runs a stress test. Part of the test is to open, save, and close certain files. Somehow, the files have picked up some "extended attributes" that prohibit the files from being saved. That causes the stress test to fail.
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Command to get time in milliseconds
Is there a shell command in Linux to get the time in milliseconds?
12 Answers
12
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Can't install PIL after Mac OS X 10.9
I've just updated my Mac OS to 10.9 and I discovered that some (all?) of my Python modules are not here anymore, especially the Image one.
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How to Copy Text to Clip Board in Android?
...bel, text);
clipboard.setPrimaryClip(clip);
make sure you have imported android.content.ClipboardManager and NOT android.text.ClipboardManager. Latter is deprecated.
Check this link for Further information.
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How to measure time taken by a function to execute
...is required to import the performance class
Using console.time: (non-standard) (living standard)
console.time('someFunction')
someFunction() // Whatever is timed goes between the two "console.time"
console.timeEnd('someFunction')
Note: The string being pass to the time() and timeEnd() metho...
Python exit commands - why so many and when should each be used?
It seems that python supports many different commands to stop script execution. The choices I've found are: quit() , exit() , sys.exit() , os._exit()
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dyld: Library not loaded … Reason: Image not found
...libSystem.B.dylib (compatibility version 1.0.0, current version 169.3.0)
and for each libboost_xxx.dylib, do:
$ install_name_tool -change @executable_path/libboost_something.dylib /opt/local/lib/libboost_something.dylib exefile
and finally verify using otool again:
$ otool -L exefile
exefile:
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How can I remove a trailing newline?
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Try the method rstrip() (see doc Python 2 and Python 3)
>>> 'test string\n'.rstrip()
'test string'
Python's rstrip() method strips all kinds of trailing whitespace by default, not just one newline as Perl does with chomp.
>>> 'test string \n \r\...
Allowed characters in filename [closed]
...bitten by that once when I shortened an include file from const.h to con.h and spent half an hour figuring out why the compiler hung.
Turns out DOS ignored extensions for devices so that con.h was exactly the same as con, the input console (meaning, of course, the compiler was waiting for me to typ...