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What is a memory fence?

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“git pull” or “git merge” between master and development branches

...self. – k0pernikus Oct 25 '12 at 13:46 Yes, if you're the only user, of course it is safe. I use git push --force all ...
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How do I enable TODO/FIXME/XXX task tags in Eclipse?

... answered Dec 8 '10 at 14:20 GnoupiGnoupi 4,54344 gold badges3131 silver badges4848 bronze badges ...
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Argparse optional positional arguments?

... techtonik 16.3k88 gold badges102102 silver badges124124 bronze badges answered Dec 18 '10 at 21:15 Vinay SajipVinay Sajip 80.8k11...
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Django's SuspiciousOperation Invalid HTTP_HOST header

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Why does an NSInteger variable have to be cast to long when used as a format argument?

... 194 You get this warning if you compile on OS X (64-bit), because on that platform NSInteger is defi...
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Why is arr = [] faster than arr = new Array?

... IDENTIFIER, CALL new Array(5): NEW, IDENTIFIER, CALL (NUMBER) new Array(5,4): NEW, IDENTIFIER, CALL (NUMBER, NUMBER) new Array(5, foo): NEW, IDENTIFIER, CALL (NUMBER, IDENTIFIER) Hopefully this should provide you a sufficient visualization so you can understand how much more (or less) processing ...
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How To Check If A Key in **kwargs Exists?

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What does “atomic” mean in programming?

...of type long. The following operation is not an atomic operation: foo = 65465498L; Indeed, the variable is written using two separate operations: one that writes the first 32 bits, and a second one which writes the last 32 bits. That means that another thread might read the value of foo, and see ...
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What is the optimal Jewish toenail cutting algorithm?

...ort ifilter, permutations validseqs = ifilter(isValid, permutations([1,2,3,4,5])) for i in validseqs: print i (1, 3, 5, 2, 4) (1, 4, 2, 5, 3) (2, 4, 1, 3, 5) (2, 4, 1, 5, 3) (2, 5, 3, 1, 4) (3, 1, 4, 2, 5) (3, 1, 5, 2, 4) (3, 5, 1, 4, 2) (3, 5, 2, 4, 1) (4, 1, 3, 5, 2) (4, 2, 5, 1, 3) (4, 2, 5,...