Standard C++ Library

NAME

  bad_cast - defines the type of object thrown by the implementation as an
  exception to report execution of an invalid dynamic-cast expression.

SYNOPSIS

  #include <typeinfo>

  namespace std {
    class bad_cast : public exception {
    public:
      bad_cast() throw();
      bad_cast(const bad_cast&) throw();
      bad_cast& operator=(const bad_cast&) throw();
      virtual ~bad_cast() throw();
      virtual const char* what() const throw();
    };
  }

DESCRIPTION

  bad_cast() throw();

  This function constructs an object of class bad_cast.

  bad_cast(const bad_cast&) throw();
  bad_cast& operator=(const bad_cast&) throw();

  These functions copy an object of class bad_cast.

  virtual const char* what() const throw();

  what() returns a string providing information about the error.  The string
  returned by what() is implementation defined.

SEE ALSO

  exception, dynamic_cast

STANDARDS CONFORMANCE

  ANSI X3J16/ISO WG21 Joint C++ Committee