Can you catch an exception by the type of a conversion operator?

Question

I don\'t know how to phrase the question very well in a short subject line, so let me try a longer explanation. Suppose I have these exception classes:

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Answer 1

You cannot. Standardese at 15.3/3:

A handler is a match for an exception object of type E if

• The handler is of type cv T or cv T& and E and T are the same type (ignoring the top-level cv- qualifiers), or
• the handler is of type cv T or cv T& and T is an unambiguous public base class of E, or
• the handler is of type cv1 T* cv2 and E is a pointer type that can be converted to the type of the handler by either or both of
  • a standard pointer conversion (4.10) not involving conversions to pointers to private or protected or ambiguous classes
  • a qualification conversion

Your desired scenario matches none of these. cv means "const and/or volatile combination"