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In C++, we can get the exception information through catch(bad_cast& ex), then output the content of ex.what()

try{ //… }catch(std::bad_alloc& e) { cout << “Catch bad alloc exception ” << e.what() << endl; } catch(std::bad_cast& e) { cout << “Catch bad alloc exception ” << e.what() << endl; } catch(std::bad_exception& e) { cout << “Catch bad alloc exception ” << e.what() << endl; } // catch more exception types here // … catch(...) { // how to get the content of unknown exception? }

How to get the exception information from catch(...)?

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    In short: You can't reliably. Commented Sep 18, 2014 at 7:53

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It's not something the language by itself can do.

... literally means "anything".

Which operations can you safely do on the "anything" ? You need in any case a type to check for. And that's noting more what you already did.

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