MPE/iX Intrinsics Reference Manual (32650-90905)

282 Chapter6
Command Definitions (FLUSHLOG-GETUSERMODE)
FUPDATE
Operation Notes
This intrinsic affects the logical record (or block for NOBUF files) of the file last referenced
by any intrinsic call, except an FPOINT call, which affects the record prior to the last record
referenced. FUPDATE moves the specified information from the stack into this record. The
file containing this record must be opened with the update
aoption specified in the
FOPEN/HPFOPEN call and the file cannot have variable-length records. If RIO access is used,
the modified record is set to the ACTIVE state.
FUPDATE intrinsic fails with a CCL condition:
•If filenum references a byte stream file.
•IfFCHECK intrinsic is called to obtain the error code associated with a CCL condition
code.
The FUPDATE intrinsic is not applicable to message files.
Related Information
Manual Accessing Files Programmer's Guide