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How to create NS_OPTIONS-style bitmask enumerations in Swift?

... 0 } static var allZeros: MyOptions { return self(0) } static func fromMask(raw: UInt) -> MyOptions { return self(raw) } var rawValue: UInt { return self.value } static var None: MyOptions { return self(0) } static var FirstOption: MyOptions { return self(1 << 0) } ...
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Shared-memory objects in multiprocessing

..., where one process holds the memory and a manager arbitrates access to it from other processes (even over a network). The Manager approach can be used with arbitrary Python objects, but will be slower than the equivalent using shared memory because the objects need to be serialized/deserialized an...
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dealloc in Swift

... deinit { // perform the deinitialization } From the Swift Documentation: A deinitializer is called immediately before a class instance is deallocated. You write deinitializers with the deinit keyword, similar to how intializers are written with the init keywor...
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Checking if an object is a given type in Swift

...ld only use as without the ? if there is no way your program could recover from the object not being of that type because the program will immediately halt if it is not. Using the ? in the if statement allows the program to continue. – drewag Jun 6 '14 at 23:55...
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PHP Remove elements from associative array

I have an PHP array that looks something like this: 9 Answers 9 ...
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Difference between string and char[] types in C++

...are faster than heap-allocated char arrays for short texts and protect you from buffer overruns. Plus they're more readable and easier to use. However, C++ strings are not (very) suitable for usage across DLL boundaries, because this would require any user of such a DLL function to make sure he's...
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Rails 3: I want to list all paths defined in my rails application

I want to list all defined helper path functions (that are created from routes) in my rails 3 application, if that is possible. ...
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What is “entropy and information gain”?

... splits with low uncertainty/entropy). This process is applied recursively from the root-node down, and stops when a leaf node contains instances all having the same class (no need to split it further). Note that I skipped over some details which are beyond the scope of this post, including how to ...
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Android and XMPP: Currently available solutions [closed]

...smack for developing my xmpp client,I am facing a problem > When i come from 1st time login I start my chatting with user B and receiving messages from user B also that is fine.i switch off my wifi and switch on it again then programatically reconnecting my jabber server and again login my accoun...
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How can I setup & run PhantomJS on Ubuntu?

... For phantomjs to be available from any directory, it is enough if you add a symlink to one of the directories listed in your $PATH variable. (run "echo $PATH" to see which they are). – Juampy NR Mar 24 '14 at 10:23 ...