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How to use background thread in swift?

... Could you please update this for Swift 3? The auto converter turned it into DispatchQueue.global(priority: Int(DispatchQoS.QoSClass.userInitiated.rawValue)).async { but this throws an error like cannot invoke initializer for type 'Int' with an argument list of type '(qos_clas...
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Undefined reference to static constexpr char[]

...h says : A glvalue (3.10) of a non-function, non-array type T can be converted to a prvalue.53 [...] What is applied in the array-to-pointer conversion. This wording of [basic.def.odr] was changed due to Defect Report 712 since some cases were not covered by this wording but these changes d...
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Really weird eclipse keyboard behavior/bug?

.... They worked in other applications. Option-Arrows worked fine to move a selection around. Arrows worked in the keyboard preferences window. Switching to another application and back didn't work. Restarting eclipse made no difference. Switching keyboard schemes from Emacs -> Default -> E...
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Worth switching to zsh for casual use? [closed]

...s not clear that zmv is just renaming files; I thought you might have been converting the format. I don't know what "hashes" support even means. This post seems like it's only "useful" to people that already know zsh. – mpen Mar 26 '14 at 17:52 ...
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How do I get the parent directory in Python?

...directory so you can put it in a JSON string. It would be kind of silly to convert to a Pathlib object and back again for that. If none of the above apply, use Pathlib. What is Pathlib? If you don't know what Pathlib is, the Pathlib module is a terrific module that makes working with files e...
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Define all functions in one .R file, call them from another .R file. How, if possible?

... have to re-source it. If your functions are changing a lot since you are converting the code, put them all in one file and just source the whole thing every time. You could also have a separate smaller file that 1. sources the larger collection of functions and 2. Runs your test cases. In R ther...
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Method has the same erasure as another method in type

... template methods, but yeah: the compiler makes sure the right method gets selected before type erasure. Beautiful. If it weren't tainted by the legacy code compatibility issues. – Jonas Eicher Dec 5 '12 at 9:03 ...
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AngularJS - wait for multiple resource queries to complete

... Your answer is very helpful and I believe it is the most sensible way to convert resources to promises in the current angular. It might be helpful to add that in the documentation of $q, which you linked to, it guarantees that the result array is in the same order as the promise array. ...
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MySQL pagination without double-querying?

...p a lot. The other way is to use SQL_CALC_FOUND_ROWS clause and then call SELECT FOUND_ROWS(). apart from the fact you have to put the FOUND_ROWS() call afterwards, there is a problem with this: There is a bug in MySQL that this tickles that affects ORDER BY queries making it much slower on large t...
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Should I compile with /MD or /MT?

...nes _MT so that multithread-specific versions of the run-time routines are selected from the standard header (.h) files. This option also causes the compiler to place the library name LIBCMT.lib into the .obj file so that the linker will use LIBCMT.lib to resolve external symbols. Either /MT or /MD ...