Structured fields

GDDM V3R2 Base Application Programming Reference

Structured fields

GDDM V3R2 Base Application Programming Reference
SC33-0868-02

A document consists of a sequence of structured fields, each of which has the following format:

0 - 1

Length of the structured field in bytes. This is the length of the parameters specific to the type of structured field, plus the 8-byte introducer. In no case may the length of a structured field be more than 8200. (This differs from AFPDS documents, for which the maximum is 8202.)

2 - 4

String identifying the type of structured field. The hexadecimal value for each type is shown in the heading for each structured field; see "Structured field formats" in topic 15.4.

5 - 7

X'000000'.

8 - n

Parameter information as described for each structured field under "Structured field formats" in topic 15.4.

Offsets, for example in error messages, are shown in hexadecimal and are calculated from the start of the structured field, including the two length bytes.

Notices | Terms of use | Support | Contact z/OS