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How can I get rid of an “unused variable” warning in Xcode?

...as an "unused" attribute you can use to suppress that warning: BOOL saved __attribute__((unused)) = [moc save:&error]; Alternatively (in case LLVM doesn't support the above), you could split the variable declaration into a separate line, guaranteeing that the variable would be "used" whether ...
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?

...ried explaining the quality of boost, then gave up after some time :( ). Smaller reason why I would like to do it is that I would like to learn c++11 features, because people will start writing code in it. So: ...
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How to get these two divs side-by-side?

... #parent_div_1, #parent_div_2, #parent_div_3 { width: 100px; height: 100px; border: 1px solid red; margin-right: 10px; float: left; } .child_div_1 { float: left; margin-right: 5px; } Check working example at http://js...
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Do declared properties require a corresponding instance variable?

... In your interface, you can formally declare an instance variable between the braces, or via @property outside the braces, or both. Either way, they become attributes of the class. The difference is that if you declare @property, then you can implement usin...
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ImportError: numpy.core.multiarray failed to import

... following command in my Mac terminal: python -c "import numpy;print(numpy.__version__);print(numpy.__file__)"; This command gave me the version and location of numpy that I was using (turned out it was 1.6.2). I went to this location and manually replaced it with the numpy folder for 1.8, which re...
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Auto line-wrapping in SVG text

...h, it needs to use one of the featurestrings defined in the svg spec. The fallback will never be used in your example. See w3.org/TR/SVG11/feature.html and w3.org/TR/SVG11/struct.html#SwitchElement. – Erik Dahlström Feb 14 '11 at 13:43 ...
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Completion block for popViewController

...where animated { coordinator.animateAlongsideTransition(nil) { _ in completion() } } else { completion() } } func popViewController(animated: Bool, completion: () -> ()) { popViewControllerAnimated(animated) ...
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“x not in y” or “not x in y”

...am' not in 'spam and eggs' >>> dis.dis(notin) 2 0 LOAD_CONST 1 ('ham') 3 LOAD_CONST 2 ('spam and eggs') 6 COMPARE_OP 7 (not in) 9 POP_TOP 10 LOAD_CONST 0 (...
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IIS_IUSRS and IUSR permissions in IIS8

... In short - you do not need to edit any Windows user account privileges at all. Doing so only introduces risk. The process is entirely managed in IIS using inherited privileges. Applying Modify/Write Permissions to the Correct User Account Right-click the domain when it appears under the Sites ...
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float64 with pandas to_csv

...mvent this problem, I recommend you create another CSV file which contains all figures as integers, for example multiplying by 100, 1000 or other factor which turns out to be convenient. Inside your application, read the CSV file as usual and you will get those integer figures back. Then convert tho...