C vs C++ (Objective-C vs Objective-C++) for iPhone

Question

I would like to create a portable library for iPhone, that also could be used for other platforms.

My question is the fallowing:

Does anyone knows what is the be

Answer 1

"Objective-C is a strict superset of C, and Objective-C++ is a strict superset of C++." - https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/CppRuntimeEnv/Articles/SymbolVisibility.html