Can C++ functions marked as Extern “C” throw?

Question

I\'ve got C++ functions that I want to declare using extern \"C\" even though they are only called in C++ code. Yes, I know this is strange but it\'s something

Answer 1

For GCC the answer seems inconclusive.

The MSVC documentation, however is relatively clear on the subject:

• /EHa and /EHs ... tells the compiler to assume that functions declared as extern "C" may throw an exception.
• /EHsc ... tells the compiler to assume that functions declared as extern "C" never throw a C++ exception

So for Visual-C++ it depends on the compiler options whether you get defined behavior.