RF2NVL (10-digit signed integer)

Length of RF2NVD.

This specifies the length in bytes of the data in the RF2NVD field. To avoid problems with data conversion of the data (if any) that follows the RF2NVD field, RF2NVL should be a multiple of four.

Note:
The RF2NVL and RF2NVD fields are optional, but if present they must occur as a pair and be adjacent. The pair of fields can be repeated as many times as required, for example:

length1 data1 length2 data2 length3 data3

Because these fields are optional, they are omitted from the declarations of the structure that are provided for the various programming languages supported.