Do all functions (unlike class / instance methods) use Objective-C's C syntax to declare and call?
well, actually it's C. Objective-C is a superset of C, meaning you can use whatever C construct you want, and the compiler will handle it. Just declare the C functions as usual, and name them as you normally would.
Yes Yes. Objective-C is built on top of C, so the C syntax is valid.
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