Would I be able to keep in touch with some c++ work in the equivalent .m record? Will it compile? Assuming no, what changes would it be a good idea for me to do to compile it?

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What are layer objects in iOS operating system?

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How can we use NSOperation queue? what is the advantage of using it ?

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 How can an operating system improve battery life while running an app?

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Describe @objc inference?

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Explain how an autorelease pool works at the runtime level in iOS

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Tell me the hierarchy of uibutton.

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what is dispatchQueue?

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Define 'copy' keyword?

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what are fetched properties? How do you create a fetched property?

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what are the build phases available in Xcode?

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Explain the working of manual memory management?

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