[Ragnarork]

> Then the statement "Stuff can't interoperate with c++" is true

Where is that statement? The statement I reacted to (and with some caveats) was the following: "Libraries written in C++ or Java can generally only be used by applications written in the same language. It is difficult to get an application written in Haskell or Java to invoke a library written in C++."

Which in my opinion is not true for the reason I mentioned.

> Nothing from c++ ever gets exposed

Depends what's your definition for "getting exposed". If you mean "no C++ feature from the language gets exposed" then it's mostly true (you can still wrap certain things like allocators, though painful, but there's certain C++ features that have no real equivalent in some target languages indeed). But you can definitely expose the functionality of C++ code through a C interface.