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define() vs. const
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1057
As of PHP 5.3 there are two ways to define constants: Either using the const keyword or using...
What does value & 0xff do in Java?
...ake ZEROs) all but the lowest 8 bits of the number (will be as-is).
... 01100100 00000101 & ...00000000 11111111 = 00000000 00000101
& is something like % but not really.
And why 0xff? this in ((power of 2) - 1).
All ((power of 2) - 1) (e.g 7, 255...) will behave something like % operato...
How can I link to a specific glibc version?
When I compile something on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
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Using the field of an object as a generic Dictionary key
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answered Apr 2 '16 at 10:51
Behzad EbrahimiBehzad Ebrahimi
6701010 silver badges2424 bronze badges
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How to execute multi-line statements within Python's own debugger (PDB)
...mport code; code.interact(local=vars())
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>>
When you're done, use Ctrl-D to return to the regular pdb prompt.
Just don't hi...
Most common way of writing a HTML table with vertical headers?
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
Why are Perl 5's function prototypes bad?
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Correction: array slicing returns a list, so an array slice in a scalar context returns the final element of the list. Your second-to-las...
Understanding Fragment's setRetainInstance(boolean)
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As far as I can tell, if you have setRetainInstance(true), the Fragment java object, and all its contents are not destroyed on rotation, b...
Javascript Thousand Separator / string format [duplicate]
...thought perhaps I'd get lucky and find out that it was necessary back in 2010, but no. According to this more reliable reference, toLocaleString has been part of the standard since ECMAScript 3rd Edition [1999], which I believe means it would have been supported as far back as IE 5.5.)
Original ...
What do the python file extensions, .pyc .pyd .pyo stand for?
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Bill LynchBill Lynch
68k1313 gold badges108108 silver badges155155 bronze badges
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