#include <iostream>
    #include <exception>
    using namespace std;
    class NewExcep: public exception
    {
        virtual const char* what() const throw()
        {
            return "New exception occurred...";
        }
    } NewExcep;
    int main () 
    {
        try
        {
            throw NewExcep;
        }
        catch (exception& excep)
        {
            cout << excep.what() << endl;
        }
        return 0;
    }