Is there any way to get some information at least for catch(…)?

Question

Is there any way to get at least some information inside of here?

...
catch(...)
{
  std::cerr << \"Unhandled exception\" << std::endl;
}
         


        

Answer 1

Yes there is, but how useful it is is open to debate:

#include 
#include 
using namespace std;

int f() {
    throw "message";
}

int main() {
    try {
        f();
    }
    catch ( ... ) {
        try {
            throw;
        }
        catch( const char *  s ) {
            cout << "caught " << s << endl;
        }
    }
}

And to actually to answer your question, IMHO you should always have a catch(...) at the top level of your code, that terminates (or otherwise handles) when presented with an unexpected exception in your application, in a manner fully documented by your application's manual.