throwing an exception in objective-c/cocoa

Question

What\'s the best way to throw an exception in objective-c/cocoa?

Answer 1

Since ObjC 2.0, Objective-C exceptions are no longer a wrapper for C's setjmp() longjmp(), and are compatible with C++ exception, the @try is "free of charge", but throwing and catching exceptions is way more expensive.

Anyway, assertions (using NSAssert and NSCAssert macro family) throw NSException, and that sane to use them as Ries states.