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How to convert CFStringRef to NSString?

...reviously retained using retain will result in a reference count underflow error. PS: can't seem to comment on Peter Hosey's answer - sorry for adding my own unnecessarily. share | improve this a...
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Why is UICollectionViewCell's outlet nil?

... But when I don't use it, it gives me error Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:] – Shaheera Jun 30 '16 at 11:04 ...
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Show SOME invisible/whitespace characters in Eclipse

...exp rules to detect lines with TABs and then mark such lines as checkstyle ERROR, which is clearly visible in Eclipse editor. Works fine. share | improve this answer | follow...
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How do I make an Android EditView 'Done' button and hide the keyboard when clicked?

... This is what ended up working for me. I decided to error with having actionDone in there as well, just in case some devices react differently. – Jacksonkr Mar 28 '16 at 16:10 ...
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Getting Chrome to accept self-signed localhost certificate

... self-signed certs worked fine in the past but suddenly started generating errors in Chrome 58, this is why. So whatever method you are using to generate your self-signed cert (or cert signed by a self-signed CA), ensure that the server's cert contains a subjectAltName with the proper DNS and/or IP...
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How can I get current date in Android?

... There are errors, new Date() is asking for arguments, and you are initializing the DateFormat with SimpleDateFormat, also not valid – Chatar Veer Suthar Dec 28 '11 at 11:18 ...
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Is it OK to leave a channel open?

...e it's nondeterministic. Most common related gotcha is too many open files error. You keep opening files... You expect GC to do so... You don't run out of memory (therefore GC doesn't kick in)... You run out of file descriptors at the OS level. OS kills the process :) – Pijusn ...
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Check whether a cell contains a substring

... got an error using , instead of ;. After changing the provided formula to =ISNUMBER(SEARCH("Some Text"; A3)) it worked. Thanks! – renatov Apr 22 '15 at 19:18 ...
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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess

...ions {} GNU Parallel will give you exit code: 0 - All jobs ran without error. 1-253 - Some of the jobs failed. The exit status gives the number of failed jobs 254 - More than 253 jobs failed. 255 - Other error. Watch the intro videos to learn more: http://pi.dk/1 ...
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What's is the difference between include and extend in use case diagram?

...when certain criteria are met. a typical example: between login and show error message (only happened sometimes) (login) <--- << extend >> --- (show error message) "show error message" only happens sometimes when the login process failed. ...