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Why does an NSInteger variable have to be cast to long when used as a format argument?

...ending on the platform, the compiler recommends to add a cast to long generally. Update: Since iOS 7 supports 64-bit now as well, you can get the same warning when compiling for iOS. share | improv...
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Unresolved reference issue in PyCharm

... Manually adding it as you have done is indeed one way of doing this, but there is a simpler method, and that is by simply telling pycharm that you want to add the src folder as a source root, and then adding the sources root to y...
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Checking if a double (or float) is NaN in C++

...nly if f is NaN. Note that, as some comments below have pointed out, not all compilers respect this when optimizing code. For any compiler which claims to use IEEE floating point, this trick should work. But I can't guarantee that it will work in practice. Check with your compiler, if in doubt. ...
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Unpacking array into separate variables in JavaScript

...nd I've done it before. I just can't remember how, or what exactly it was called. 7 Answers ...
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PDO Prepared Inserts multiple rows in single query

... table (fielda, fieldb, ... ) values (?,?...), (?,?...).... That is basically how we want the insert statement to look like. Now, the code: function placeholders($text, $count=0, $separator=","){ $result = array(); if($count > 0){ for($x=0; $x<$count; $x++){ $re...
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Check whether an array is empty [duplicate]

...pty($errors)) { } array_filter() function's default behavior will remove all values from array which are equal to null, 0, '' or false. Otherwise in your particular case empty() construct will always return true if there is at least one element even with "empty" value. ...
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Visual Studio 2012 Express is suddenly “incompatible with this version of Windows”?

...e same message on Visual Studio 2012 Premium (on PC where Windows 7 re-installed in last month) - the suggested fix was "Update for Microsoft Visual Studio 2012 (KB2781514)" which seems to have fixed it www.microsoft.com/en-us/download/details.aspx?id=36020 ...
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Android Studio: Android Manifest doesn't exists or has incorrect root tag

... Thanks. Hope all the answers keep helping people. – axierjhtjz Sep 26 '14 at 16:04 4 ...
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Difference between the Facade, Proxy, Adapter and Decorator design patterns? [closed]

...o a new interface. In the case of the former, multiple inheritance is typically employed. In the latter case, the object is wrapped by a conforming adapter object and passed around. The problem we are solving here is that of non-compatible interfaces. Facade is more like a simple gateway to a compl...
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How to do a GitHub pull request

...ng sure your patch is still working) will update the pull request automagically (no need to click on anything) update that branch: if your pull request is rejected, you simply can add new commits, and/or redo your history completely: it will activate your existing pull request again. "focus" that br...