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Why is address zero used for the null pointer?

...tandard has a note that makes clear that converting "an integral constant em>xm>pression with value zero always yields a null pointer, but converting other em>xm>pressions that happen to have value zero need not yield a null pointer". a negative value might be just as usable by the platform as an address - ...
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Bootstrap 3 offset on right not left

...hey don't add up to more than 12. <link rel="stylesheet" href="//mam>xm>cdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css"> <div class="container"> <div class="row"> <div class="col-m>xm>s-3 col-m>xm>s-offset-9"> I'm a right column of 3 </div> ...
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Why does the 260 character path length limit em>xm>ist in Windows?

...le https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#mam>xm>imum-path-length-limitation Mam>xm>imum Path Length Limitation In the Windows API (with some em>xm>ceptions discussed in the following paragraphs), the mam>xm>imum length for a path is MAm>Xm>_PATH, which is defined as 260 characte...
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Is there an easy way to add a border to the top and bottom of an Android View?

I have a Tem>xm>tView and I'd like to add a black border along its top and bottom borders. I tried adding android:drawableTop and android:drawableBottom to the Tem>xm>tView, but that only caused the entire view to become black. ...
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HashSet vs. List performance

... Thank you so much! This is a great em>xm>planation, I was looking for something that could add and remove faster than a List<T> for a game engine, and since I will usually have a high volume of objects, this kind of a collection would be perfect. ...
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Running a cron every 30 seconds

...30-sec boundaries, keep commands in sync. * * * * * /path/to/em>xm>ecutable param1 param2 * * * * * ( sleep 30 ; /path/to/em>xm>ecutable param1 param2 ) You'll see I've added comments and formatted to ensure it's easy to keep them synchronised. Both cron jobs actually run every minute but the ...
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What is the best way to force yourself to master vi? [closed]

...r of viemu , clearing up a lot of the misconceptions about vi, as well as em>xm>plaining why it's a good idea (and why it's been very popular for the last 30 years+). The same guy also has a great set of graphical cheat sheets that teach the basics a few bits at a time. ...
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What characters are forbidden in Windows and Linum>xm> directory names?

I know that / is illegal in Linum>xm>, and the following are illegal in Windows (I think) * . " / \ [ ] : ; | , ...
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How do you test functions and closures for equality?

...ure optimizations in closures. Further, equality of this sort would be em>xm>tremely surprising in some generics contem>xm>ts, where you can get reabstraction thunks that adjust the actual signature of a function to the one the function type em>xm>pects. https://devforums.apple.com/message/1035180#10...
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How do I undo 'git add' before commit?

... 1 2 Nem>xm>t 10757 ...