HP RPG/XL Programmer's Guide (30318-90001)

7-: 6
Figure 7-6. A USWITCH Error
BUFCHK Errors. BUFCHK errors are data buffer handling errors that may
occur when you use the BUFCHK Defaults feature (column 28 in the Header
Specification). Appendix B of the HP RPG Reference Manual contains a
complete description of the BUFCHK errors and recovery procedures for
them.
These are the BUFCHK error messages you may encounter:
INTERNAL OR INTRINSIC ERROR
ATTEMPTED UPDATE BEFORE INPUT OF FIRST RECORD.
ATTEMPTED UPDATE ON SAME RECORD OR ON AN INTERVENING "ADD" RECORD.
ATTEMPTED LOCKING FILE AT BOTH RECORD-LEVEL AND FILE-LEVEL
Figure 7-7 shows what a typical BUFCHK error display looks like.
Figure 7-7. A BUFCHK -4 Error