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Understanding reference counting with Cocoa and Objective-C

...e count is decremented. If, after calling release, the reference count is now zero, then that object's memory is freed by the system. The basic way this differs from malloc and free is that any given object doesn't need to worry about other parts of the system crashing because you've freed memory ...
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When exactly is it leak safe to use (anonymous) inner classes?

...u are actually asking several questions at once. I'll do my best with the knowledge that I have to cover it and, hopefully, some others will join in to cover what I may miss. Nested Classes: Introduction As I'm not sure how comfortable you are with OOP in Java, this will hit a couple of basics. A ...
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What's the bad magic number error?

...s -- this didn't directly help me figure out my problem, but it's nice to know the answer anyways! – Noah Feb 5 '09 at 3:36 ...
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How to get week number in Python?

... week number using strftime, best import datetime today = datetime.now() week = today.strftime("%W") – bipsa Jun 9 '15 at 16:39 7 ...
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Why is “copy and paste” of code dangerous? [closed]

...nge you ever need to make in the code (not just bugfixes, any change) will now be twice as expensive to do because you have to update two places - and more risky because you WILL forget one of them eventually. In other words, making it work faster now will make your work even slower in the future, w...
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How do I find a “gap” in running counter with SQL?

...rt into artificial_range( name ) select name from artificial_range; -- you now have two rows insert into artificial_range( name ) select name from artificial_range; -- you now have four rows insert into artificial_range( name ) select name from artificial_range; -- you now have eight rows --etc. ...
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iPhone and OpenCV

I know that OpenCV was ported to Mac OS X , however I did not find any info about a port to the iPhone. 13 Answers ...
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How to install an npm package from GitHub directly?

... Only solution I think of for now is to specify a commit with .../express.git#commit – Gaston Sanchez Dec 8 '14 at 18:23 40 ...
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How to remove focus without setting focus to another control?

... @InteXX: I came across this problem again today and found a solution. I know you've gone down a different route now, but give this a try if you ever find yourself in the same boat again! – actionshrimp May 28 '11 at 16:34 ...
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How does PHP 'foreach' actually work?

Let me prefix this by saying that I know what foreach is, does and how to use it. This question concerns how it works under the bonnet, and I don't want any answers along the lines of "this is how you loop an array with foreach ". ...