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When to use -retainCount?

...meaningless. If you're trying to track down why an object isn't getting deallocated, use the Leaks tool in Instruments. If you're trying to track down why an object was deallocated too soon, use the Zombies tool in Instruments. But don't use -retainCount. It's a truly worthless method. edit Pl...
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Decimal separator comma (',') with numberDecimal inputType in EditText

...har[] getAcceptedChars() { return mAccepted; } /** * Allocates a DigitsKeyListener that accepts the digits 0 through 9. */ public MyDigitsKeyListener() { this(false, false); } /** * Allocates a DigitsKeyListener that accepts the digits 0 through 9...
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Proper way to exit iPhone application?

... it to exit due to certain user actions. After cleaning up memory the app allocated, what's the appropriate method to call to terminate the application? ...
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Reason to Pass a Pointer by Reference in C++?

...reference. For instance, if you have a class holding data in a dynamically allocated array, but you want to provide (nonconstant) access to this data to the client. At the same time, you do not want the client to be able to manipulate the memory through the pointer. – user23218...
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How to “return an object” in C++?

...hat, you'd probably want to do the out parameter. It avoids dynamic memory allocation, which is safer and generally faster. It does require you have some way to construct the object prior to calling the function, which doesn't always make sense for all objects. If you want to use dynamic allocation...
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Is there a way to cause git-reflog to show a date alongside each entry?

...ed-by: Jeff King (peff). (Merged by Junio C Hamano -- gitster -- in commit 0d32799, 08 Aug 2016) The rev-list options is updated: The reflog designator in the output may be shown as ref@{Nth} (where Nth is the reverse-chronological index in the reflog) or as ref@{timestamp} (with the timestam...
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Is it possible to use AutoLayout with UITableView's tableHeaderView?

...viewDidLoad { [super viewDidLoad]; self.header = [[SCAMessageView alloc] init]; self.header.titleLabel.text = @"Warning"; self.header.subtitleLabel.text = @"This is a message with enough text to span multiple lines. This text is set at runtime and might be short or long."; //se...
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What is the difference between `git merge` and `git merge --no-ff`?

... 14 (delta 10), reused 0 (delta 0) To git@github.com:me/mywebsite.git 8a0d9ec..333eff5 master -> master Script for automating the above Having used this process 10+ times in a day, I have taken to writing batch scripts to execute the commands, so I made an almost-proper git_update.sh &l...
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Fastest way to reset every value of std::vector to 0

... does assigning it to a new vector do heap allocation ? and then discard the allocation of the existing vector ? I could see that being slower than memset et al – Conrad Jones Jan 12 '18 at 19:40 ...
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Create batches in linq

...are simpler solutions that do not accumulate at all. Furthermore this will allocate space even for non-existent elements: Batch(new int[] { 1, 2 }, 1000000) – Nick Whaley Jul 12 '13 at 18:56 ...