Catching all unhandled C++ exceptions?

Question

Is there some way to catch exceptions which are otherwise unhandled (including those thrown outside the catch block)?

I\'m not really concerned about all the normal

Answer 1

Update: This covers c++98 only.

From More Effective C++ by Meyers (pg 76), you could define a function that gets called when a function generates an exception that is not defined by its exception specification.

void convertUnexpected()
{
    // You could redefine the exception here into a known exception
    // throw UnexpectedException();

    // ... or I suppose you could log an error and exit.
}

In your application register the function:

std::set_unexpected( convertUnexpected );

Your function convertUnexpected() will get called if a function generates an exception that is not defined by its exception specification... which means this only works if you are using exception specifications. ;(