Deriving from TStandardException

• Define a public enum type with a value for each error specific to the exception.
• Define a public constructor that takes an argument of the enum type and stores its value in the private member fData.
• Override these TStandardException member functions:
  • The default constructor (takes no arguments)
  • The copy constructor
  • The assignment operator (operator=)
  • GetReason()--must return a value of the enum type; override as a public member function
  • Throw()--define this inline, substituting your exception class name:

          Throw() {throw *(exception-class-name *)this;}

  • The destructor