Pure CORBA

C++ Example of Passing anys

C++ mapping maps the IDL type any to the C++ class CORBA::Any. A corresponding _var class, CORBA::Any_var, is also generated. The C++ mapping of the any is focussed on the definition of the following two operators: the insertion operator <<= (left-shift assignment) and the extraction operator >>= (right-shift assignment).

The motivation for using operators for insertion and extraction is to take advantage of the C++ overloading mechanism. With the help of operator overloading, the appropriate function is chosen automatically by the C++ compiler according to the type of data being inserted or extracted.

For a variety of reasons, however, overloading cannot automatically cope with the full range of CORBA data types. ...