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(-2147483648> 0) returns true in C++?

...ndefined anyway. As a side note, this is the reason why constants like INT_MIN are typically defined as #define INT_MIN (-2147483647 - 1) instead of the seemingly more straightforward #define INT_MIN -2147483648 The latter would not work as intended. ...
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presentViewController:animated:YES view will not appear until user taps again

...eue: [self presentViewController:vc animated:YES completion:nil]; dispatch_async(dispatch_get_main_queue(), ^{}); It's funny, but if you shake the device, it'll also trigger the main loop (it has to process the motion events). Same thing with taps, but that's included in the original question :) ...
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Best way to find the intersection of multiple sets?

...e in a list, this translates to: u = set.intersection(*setlist) where *a_list is list expansion Note that set.intersection is not a static method, but this uses the functional notation to apply intersection of the first set with the rest of the list. So if the argument list is empty this will fa...
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Creating Unicode character from its number

...parse characters that are larger than a char. scala> "????‍????".map(_.toInt).flatMap((i: Int) => Character.toChars(i)).map(_.toHexString) gives res11: scala.collection.immutable.IndexedSeq[String] = Vector(f468, 200d, f3a8) This emoji, "male singer", is addressed with the three code point...
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Passing arguments forward to another javascript function

... for a complete, up to date data: kangax.github.io/compat-table/es6/#spread_%28...%29_operator – TMG Aug 13 '15 at 8:37 ...
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How do you disable browser Autocomplete on web form field / input tag?

...e to do is generate a new name on every page load and save that name to a $_SESSION for future use: $_SESSION['codefield_name'] = md5(uniqid('auth', true)); – enchance Nov 13 '11 at 9:03 ...
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Write to UTF-8 file in Python

... I believe the problem is that codecs.BOM_UTF8 is a byte string, not a Unicode string. I suspect the file handler is trying to guess what you really mean based on "I'm meant to be writing Unicode as UTF-8-encoded text, but you've given me a byte string!" Try writin...
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How do I return multiple values from a function? [closed]

...ins high (I was wrong in my last comment about "under 1 KB" for the class, _source by itself is typically 1.5 KB; _source is removed in 3.7, so it's likely closer to the original claim of just under 1 KB per class creation). – ShadowRanger Apr 20 '18 at 19:31 ...
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Java URL encoding of query string parameters

... url = "https://example.com?q=" + URLEncoder.encode(q, StandardCharsets.UTF_8); When you're still not on Java 10 or newer, then use StandardCharsets.UTF_8.toString() as charset argument, or when you're still not on Java 7 or newer, then use "UTF-8". Note that spaces in query parameters are represe...
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How to hide output of subprocess in Python 2.7

... use os.devnull if subprocess.DEVNULL is not available (<3.3), use check_call() instead of call() if you don't check its returned code, open files in binary mode for stdin/stdout/stderr, usage of os.system() should be discouraged, &> doesn't work for sh on Ubuntu an explicit >/dev/null ...