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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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First the left four bits are swapped with the right four bits. Then all adjacent pairs are swapped and then all adjacent single bits. This results in a reversed order.
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PHP Regex to check date is in YYYY-MM-DD format
...ing to be more fuss -- and February 29 cannot be validated with a regex at all.
The drawback of this approach is that you have to be very careful to reject all possible "bad" inputs while not emitting a notice under any circumstances. Here's how:
explode is limited to return 3 tokens (so that if ...
Default initialization of std::array?
...rantee that the syntax std::array<T, N> x; will default-initialize all the elements of the array ?
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Setting design time DataContext on a Window is giving a compiler error?
...set the design time d:DataContext below, which I can successfully do for all my various UserControls, but it gives me this error when I try to do it on the window...
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Java: getMinutes and getHours
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From the Javadoc for Date.getHours
As of JDK version 1.1, replaced by Calendar.get(Calendar.HO...
How do I draw a shadow under a UIView?
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In your current code, you save the GState of the current context, configure it to draw a shadow...
Set type for function parameters?
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Dan DascalescuDan Dascalescu
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Using :after to clear floating elements
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The text 'dasda' will never not be within a tag, right? Semantically and to be valid HTML it as to be, just add the clear class to that:
http://jsfiddle.net/EyNnk/2/
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Where in memory are my variables stored in C?
...declared in functions), variables (in main function), pointers, and dynamically allocated space (using malloc and calloc) get stored in memory?
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Why does Google prepend while(1); to their JSON responses?
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It prevents JSON hijacking, a major JSON security issue that is formally fixed in all major browsers since 2011 with ECMAScript 5.
Contrived example: say Google has a URL like mail.google.com/json?action=inbox which returns the first 50 messages of your inbox in JSON format. Evil websites on...