How much of the "Objective-C" I'm learning is universal Objective-C, and not Apple's frameworks?

Posted by Chris Cooper on Stack Overflow See other posts from Stack Overflow or by Chris Cooper
Published on 2010-06-05T22:50:15Z Indexed on 2010/06/05 22:52 UTC
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Filed under:

iphone

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objective-c

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iphone-sdk

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programming-languages

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language-features

This question is related to one of my others about C: What can you do in C without “std” includes? Are they part of “C,” or just libraries?

I've become curious lately as to what is really contained the the core Objective-C language, and what parts of the Objective-C I've done for iPhone/OS X development is specific to Apple platforms.

I know that things like syntax are the same, but for instance, is NSObject and its torrent of NS-subclasses actually part of "standard" Objective-C? Could I use them in, say, Windows?

What parts are universal for the most part, and what parts would I only find on an Apple platform?

If you want, giving an example of Objective-C used elsewhere as an example of what is more "universal" would help me as well.

Thanks! =)

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