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How does this print “hello world”?

...g the number with the mask 31₁₀ = 11111₂ in the sentence l & 31 Now the code maps the 5-bit value to its corresponding 7-bit ascii character. This is the tricky part, check the binary representations for the lowercase alphabet letters in the following table: ascii | ascii | ...
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Why does SIGPIPE exist?

... You're right, I don't know why I accepted that in the first place. This answer makes sense, though IMO it's odd that e.g. on Linux this laziness is achieved by kernel and not the libc. – Shea Levy Mar 19 '14 a...
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How to iterate over arguments in a Bash script

... Rewrite of a now-deleted answer by VonC. Robert Gamble's succinct answer deals directly with the question. This one amplifies on some issues with filenames containing spaces. See also: ${1:+"$@"} in /bin/sh Basic thesis: "$@" is correc...
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vector::at vs. vector::operator[]

I know that at() is slower than [] because of its boundary checking, which is also discussed in similar questions like C++ Vector at/[] operator speed or ::std::vector::at() vs operator[] << surprising results!! 5 to 10 times slower/faster! . I just don't understand what the at() met...
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Can you control how an SVG's stroke-width is drawn?

... browser versions) but it does accurately provide a shapes outer width for now. – Steve Sep 2 '11 at 10:02 6 ...
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Setting an object to null vs Dispose()

...m fascinated by the way the CLR and GC works (I'm working on expanding my knowledge on this by reading CLR via C#, Jon Skeet's books/posts, and more). ...
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HTML - how can I show tooltip ONLY when ellipsis is activated

...low { text-overflow: ellipsis; overflow : hidden; white-space: nowrap; } .might-overflow:hover { text-overflow: clip; white-space: normal; word-break: break-all; } share | ...
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Why does Razor _layout.cshtml have a leading underscore in file name?

...ghtful answer. I was under the misapprehension that Razor was tied to MVC. Now I see the reason for the leading underscore is to prevent them from being served directly under ASP.NET Web Pages. – richb Jan 3 '11 at 1:53 ...
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CSS3 selector :first-of-type with class name?

...in some discussions of the feature: :nth-match(1 of p.myclass) This has now been implemented in WebKit, and is thus available in Safari, but that appears to be the only browser that supports it. There are tickets filed for implementing it Blink (Chrome), Gecko (Firefox), and a request to implemen...
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Use 'import module' or 'from module import'?

... No, in the last example, the name 'foo' is unknown – Ghislain Leveque Jan 11 '16 at 13:59 33 ...