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Does ARC support dispatch queues?

... The short answer: YES, ARC retains and releases dispatch queues. And now for the long answer… If your deployment target is lower than iOS 6.0 or Mac OS X 10.8 You need to use dispatch_retain and dispatch_release on your queue. ARC does not manage ...
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Center a DIV horizontally and vertically [duplicate]

Is there a way to CENTER A DIV vertically and horizontally but, and that is important, that the content will not be cut when the window is smaller than the content The div must have a background color and a width and hight. ...
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How do I create a simple 'Hello World' module in Magento?

... First and foremost, I highly recommend you buy the PDF/E-Book from PHP Architect. It's US$20, but is the only straightforward "Here's how Magento works" resource I've been able to find. I've also started writing Magento tutorials a...
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Constant Amortized Time

...erations". Amortised time doesn't have to be constant; you can have linear and logarithmic amortised time or whatever else. Let's take mats' example of a dynamic array, to which you repeatedly add new items. Normally adding an item takes constant time (that is, O(1)). But each time the array is ful...
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Best way to iterate through a Perl array

Which is the best implementation(in terms of speed and memory usage) for iterating through a Perl array? Is there any better way? ( @Array need not be retained). ...
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Does ruby have real multithreading?

...e confusing two very different things here: the Ruby Programming Language and the specific threading model of one specific implementation of the Ruby Programming Language. There are currently around 11 different implementations of the Ruby Programming Language, with very different and unique thr...
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What is the difference between exit(0) and exit(1) in C?

Can anyone tell me? What is the difference between exit(0) and exit(1) in C language? 11 Answers ...
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.gitignore for PhoneGap/Cordova 3.0 projects - what should I commit?

... The answer depends on wich platforms you're developing the phongap app, and if you're following the standard directory structure. If your project directory structure is standard, then you can start from this gitignore and modify it for your needs. On a rule of thumb you've to exclude all genera...
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Is there a way to crack the password on an Excel VBA Project?

...pdate some Excel 2003 macros, but the VBA projects are password protected, and it seems there's a lack of documentation... no-one knows the passwords. ...
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What does static_assert do, and what would you use it for?

...n example where static_assert(...) ('C++11') would solve the problem in hand elegantly? 8 Answers ...