At first blush, I dismissed it for violating 3.3.1, but now that I think of it, you're allowed to use Objective-C, C or C++. Visual Studio already has a C/C++ c

At first blush, I dismissed it for violating 3.3.1, but now that I think of it, you're allowed to use Objective-C, C or C++. Visual Studio already has a C/C++ compiler so they don't even need to introduce a new language into the mix. Section 3.3.1 also disallows using "compatibility layers" to access documented APIs. Since the Cocoa APIs are Objective-C, you wouldn't be able to write an app using only C++ without violating it (except perhaps in the case of an OpenGL game).