I'm trying to provide a concise overview of different language features and to highlight some common gotchas when using them. I'm assuming that most of my read

I'm trying to provide a concise overview of different language features and to highlight some common gotchas when using them. I'm assuming that most of my readers already know how to program well in at least one language, but are inexperienced with C and Objective-C. I agree that it's not a good tutorial for people just learning to program.