How to simulate inner exception in C++

Question

Basically I want to simulate .NET Exception.InnerException in C++. I want to catch exception from bottom layer and wrap it with another exception and throw again to upper la

Answer 1

Since C++ 11 you have new options:

1. You can use std::exception_ptr.

   The exception is then preserve until last exception_ptr to this exception is destroyed.

   struct base_exception : public std::exception
   {
       std::exception_ptr InnerException;
   
       base_exception() {}
       base_exception(std::exception& innerException)
        : InnerException(std::make_exception_ptr(innerException))
       {}
   
   };
   

2. Or you can simply use std::nested_exception.