(Tips) AS/400 Built In Functions %EOF

%EOF returns ’1’ if the most recent read operation or write to a subfile ended in an
end of file or beginning of file condition; otherwise, it returns ’0’.
The operations that set %EOF are:
“READ (Read a Record)”
“READC (Read Next Changed Record)”
“READE (Read Equal Key)”
“READP (Read Prior Record)”
“READPE (Read Prior Equal)”
“WRITE (Create New Records)” subfile only).

The following operations, if successful, set %EOF(filename) off. If the operation is
not successful, %EOF(filename) is not changed. %EOF with no parameter is not
changed by these operations.
“CHAIN (Random Retrieval from a File)”
“OPEN (Open File for Processing)”
“SETGT (Set Greater Than)”
“SETLL (Set Lower Limit)”

When a full-procedural file is specified, this function returns ’1’ if the previous
operation in the list above, for the specified file, resulted in an end of file or
beginning of file condition. For primary and secondary files, %EOF is available
only if the file name is specified. It is set to ’1’ if the most recent input operation
during *GETIN processing resulted in an end of file or beginning of file condition.
Otherwise, it returns ’0’.

This function is allowed for input, update, and record-address files; and for display
files allowing WRITE to subfile records.