c++-cli – How is the handling \ displaying of exceptions from C ++ CLI code in C # code?

Question:

Probably, one of the main questions that remain is how exactly the handling / display of exceptions from C ++ CLI code in C # code is done.

After all, the C ++ CLI combines managed and unmanaged code, and in addition is called from managed C # code.

How to correctly handle exceptions of C ++ CLI code on the C # side:

• If try\catch blocks from <exception> not placed in the managed part of CLI code?

• If try\catch blocks from <exception> are placed in the managed part of CLI code? Forward on?

• If on the side of the unmanaged code AcсessViolation knocks out, and in the managed part of the CLI this method is in the try\catch – will the application crash all the same?

Answer:

Throwing exceptions between libraries and languages ​​should be avoided.

The reason is that C ++ does not have a fixed ABI, even different versions of the compiler can implement these things in different ways inside.

If you want reliable and portable code, localize exceptions within a single binary.