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ARC and bridged cast

...__bridge_transfer? Otherwise it would seem that the moment CFRelease() is called the object is gone and points to nothing. Similarly, when you use __bridge_retain, does ARC reduce the op's retain count by 1? Else it seems that the object would never be properly released. – Tony...
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Authorize a non-admin developer in Xcode / Mac OS

... Finally, I was able to get rid of it using DevToolsSecurity -enable on Terminal. Thanks to @joar_at_work! FYI: I'm on Xcode 4.3, and pressed the disable button when it launched for the first time, don't ask why, just assume my ...
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What is the difference between AF_INET and PF_INET in socket programming?

... to do is to use AF_INET in your struct sockaddr_in and PF_INET in your call to socket(). But practically speaking, you can use AF_INET everywhere. And, since that's what W. Richard Stevens does in his book, that's what I'll do here. ...
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Count number of records returned by group by

...his to DISTINCT COUNT() OVER(), and the query performance improved dramatically. – Joe Aldrich Sep 20 '17 at 13:33  |  show 3 more comments ...
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How do I view the SQL generated by the Entity Framework?

... redirecting to Immediate (Tools > Options > Debugging > Redirect all Output Window text to Immediate Window) – rkawano May 21 '14 at 17:41 ...
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Why is SQL Server 2008 Management Studio Intellisense not working?

...en to insanity trying to figure out why Intellisense just fails to work at all. The server I'm using is local and is 2008, the database is set to 2008 compatibility, Intellisense is on in every menu I can find, and yet no member list will pop up even with a CTRL-J. ...
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Best explanation for languages without null

... that every reference type gets this extra state in its space that is typically undesired. A string variable could be any sequence of characters, or it could be this crazy extra null value that doesn't map into my problem domain. A Triangle object has three Points, which themselves have X and Y va...
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Retain cycle on `self` with blocks

...nswered Dec 4 '10 at 8:14 Lily BallardLily Ballard 164k2525 gold badges355355 silver badges331331 bronze badges ...
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SqlAlchemy - Filtering by Relationship Attribute

...ts = Patient.query.filter(Patient.mother.has(phenoscore=10)) or join (usually faster): patients = Patient.query.join(Patient.mother, aliased=True)\ .filter_by(phenoscore=10) share | ...
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Resize image in PHP

I'm wanting to write some PHP code which automatically resizes any image uploaded via a form to 147x147px, but I have no idea how to go about it (I'm a relative PHP novice). ...