The IBAN consists of up to 34 alphanumeric characters, comprising a country code, two check digits and a long and detailed bank account-number. The check digits enable a sanity check of the bank account number to confirm its integrity before submitting a transaction.he Basic Bank Account Number (BBAN) format is decided by the national central bank or designated payment authority of each country. There is no consistency between the formats adopted. The national authority may register its BBAN format with SWIFT, but is not obliged to do so. It may adopt IBAN without registration.
You can detect at compile time if a type is an interface with __is_interface_class(type) . For more information, see Compiler Support for Type Traits (C++ Component Extensions) .
An interface can contain declarations for functions, events, and properties. All interface members have public accessibility. An interface can also contain static data members, functions, events, and properties, and these static members must be defined in the interface. An interface defines how a class may be implemented. An interface is not a class and classes can only implement interfaces. When a class defines a function declared in an interface, the function is implemented, not overridden. Therefore, name lookup does not include interface members. A class or struct that derives from an interface must implement all members of the interface.