Fixed-Length Opaque Data

At times, fixed-length uninterpreted data needs to be passed among machines. This data is called opaque.

Declaration

Opaque data is declared as follows.

opaque identifier[n]; 

In this declaration, the constant n is the static number of bytes necessary to contain the opaque data. The n bytes are followed by enough (0 to 3) residual zero bytes r to make the total byte count of the opaque object a multiple of four.

Fixed-Length Opaque Encoding

The n bytes are followed by enough (0 to 3) residual zero bytes r to make the total byte count of the opaque object a multiple of four.