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Presenting a UIAlertController properly on an iPad using iOS 8
...ewController:alertController animated:YES completion:nil];
Editing for Swift 4.2, though there are many blogs available for the same but it may save your time to go and search for them.
if let popoverController = yourAlert.popoverPresentationController {
popoverController.sourceV...
How do I specify a pointer to an overloaded function?
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You can use static_cast<>() to specify which f to use according to the function signature implied by the function pointer type:
// Uses the void f(char c); overload
std::for_each(s.begin(), s.end(), static_cast<void (*)(char)>(&f));
// Uses the void...
What's your most controversial programming opinion?
...oid it becoming argumentative. I think it could be an interesting question if people treat it appropriately.
407 Answers
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How long does it take for GitHub page to show changes after changing index.html
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it takes ages sometimes if you use custom, how much of a benifit is the cdn?
– SuperUberDuper
Dec 17 '16 at 12:23
19
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Will using goto leak variables?
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Warning: This answer pertains to C++ only; the rules are quite different in C.
Won't x be leaked?
No, absolutely not.
It is a myth that goto is some low-level construct that allows you to override C++'s built-in scoping mechanisms. (If anything, it's longjmp that may be prone to ...
Android - Spacing between CheckBox and text
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The red line shows the paddingLeft offset value of the entire CheckBox
If I just override that padding in my XML layout, it messes up the layout. Here's what setting paddingLeft="0" does:
Turns out you can't fix this in XML. You have do it in code. Here's my snippet with a hardcoded paddin...
What is the coolest thing you can do in
...I'm sure you can write a Mandelbrot set in Haskell in 15 lines but it's difficult to follow.
87 Answers
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What's up with Java's “%n” in printf?
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From a quick google:
There is also one specifier that doesn't correspond to an argument. It is "%n" which outputs a line break. A "\n" can also be used in some cases, but since "%n" always outputs the correct platform-specific line separator, it is portable across pla...
How to extract filename.tar.gz file
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If file filename.tar.gz gives this message: POSIX tar archive,
the archive is a tar, not a GZip archive.
Unpack a tar without the z, it is for gzipped (compressed), only:
mv filename.tar.gz filename.tar # optional
tar xvf ...
How can I list ALL grants a user received?
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If you want more than just direct table grants (e.g., grants via roles, system privileges such as select any table, etc.), here are some additional queries:
System privileges for a user:
SELECT PRIVILEGE
FROM sys.dba_sys_...