Standard-Exceptions

try {
    double final_grade = grade(midterm, final, homework);
    streamsize prec = cout.precision();
    cout << „Your final grade is “ << setprecision(3)
               << final_grade << setprecision(prec) << endl;}
} catch (domain_error) {
   cout << endl << „You must enter your grades. „
       „Please try again.“ << endl;
   return 1;
}

Es gibt Standard-Exceptions, definiert im Header <stdexcept>.