HP 3000 Manuals

COBOL/HP-UX Operating Guide for the Series 700 and 800

Overview 

If an error has occurred, the file status indicates the reason for the
error.  It is returned in a data item called the file status item, which
you define in your program.  Defining a file status item is optional
although if you do not and a file error occurs, the run-time system
displays an error message and aborts your program.

This chapter explains the values of the first byte in file status data
item, the alternate file status table, how to globally alter file status
values, how to alter file status values for individual run-time systems
and restrictions on declaring USE procedures.

MPE/iX 5.0 Documentation