Can a C program handle C++ exceptions?

Question

I am developing C++ component dll that can be used by C or C++ applications. The exposed dll functions are as follows

#include 
#ifdef IMPORT
         


        

Answer 1

As a general rule, you should never allow C++ exceptions to propagate beyond a module's boundary. This is because the C++ standard does not specify how exception propagation has to be implemented, and as such this is compiler (and compiler flags) and operating system dependent. You cannot guarantee that the code calling your module will be compiled with the same compiler with the same compiler flags as your module. In fact, as you're demonstrating with this question is that you cannot guarantee that code calling your module will be written in the same language.

For more details, please refer to Item 62 in C++ Coding Standards by Sutter and Alexandrescu.