Proper/elegant way of implementing C++ exception chaining?

Question

I\'d like to implement an Exception class in C++ that mimics the one from .NET framework (and Java has something similar too), for the following purposes:

1. E

Answer 1

There is a lot of extra code, but the good thing is it's really EASY extra code that doesn't change at all from class to class, so it's possible to preprocessor macro it.

#define SUB_EXCEPTION(ClassName, BaseName) \
  class ClassName : public BaseName\
  {\
  protected:\
  \
      ClassName(const ClassName& source) : BaseName(source) {};\
      ClassName& operator= (const ClassName&) {};\
  \
  public:\
  \
      ClassName(const CString &message) : BaseName(message) {};\
      ClassName(const CString &message, const BaseName &innerException) : BaseName(message, innerException) {};\
  \
      virtual CString GetExceptionName() const { return L"ClassName"; }\
  \
      virtual BaseName *Clone() const\
      {\
          ClassName *ex = new ClassName(this->Message);\
          ex->InnerException = this->InnerException ? this->InnerException->Clone() : 0;\
          return ex;\
      }\
  };

Then you can define various utility exceptions by just doing:

SUB_EXCEPTION(IoException, Exception);
SUB_EXCEPTION(SerialPortException, IoException);