  Seeking COBOL documentation? 
 The Question is:
 
Where do I locate COBOL file status error codes?
 
 The Answer is:
    See the Compaq COBOL Reference Manual, Appendix C - File Status
    Values.
 
    Also, the online help lists those file status values impacted
    by the /STANDARD qualifier:
 
$ help cobol /standard
 
COBOL
 
  /STANDARD
...
       b. I-O file status values
 
   If you specify /STANDARD=V3, you receive the file status values
   listed in the left-hand column, labeled V3.
 
   If you specify /STANDARD=85, you receive the file status values
   listed in the right-hand column, labeled 85.
 
   The following table explains the I-O error conditions and lists the
   corresponding file status values for the /STANDARD qualifier using
   the V3 and 85 options.
 
    __________________________________________________________________
           I-O File Status Values for the /STANDARD Qualifier
    __________________________________________________________________
    I-O Error Condition                             Status Value
                                              ________________________
                                                  V3           85
    __________________________________________________________________
    READ successful -- detected alternate
    duplicate key.                                00           02
    READ successful -- record shorter than
    fixed file attribute.                         00           04
    CLOSE reel/unit attempted on nonreel/unit
    device.                                       00           07
    READ fails -- relative key digits exceed
    relative key.                                 00           14
    WRITE fails -- relative key digits exceed
    relative key.                                 00           24
    OPEN I-O on file that is not mass storage.    00           37
    WRITE fails -- attempt to write a record
    of a different size than in the file
    description.                                  00           44
    READ fails -- no next logical record
    (EOF detected).                               13           10
    READ fails -- no next logical record
    (EOF on OPTIONAL file).                       15           10
    READ fails -- no valid next record
    (already at EOF).                             16           10
    READ NEXT or sequential READ -- no valid
    next record pointer.                          16           46
    READ or START fails -- optional input
    file not present.                             25           23
    READ successful -- record longer than
    fixed file attribute.                         30           04
    OPEN on relative or indexed file that
    is not mass storage.                          30           37
    REWRITE fails -- attempt to rewrite
    record of different size.                     30           44
    CLOSE fails -- file not currently open.       94           42
    DELETE or REWRITE fails -- previous I-O
    not successful READ.                          93           43
    OPEN fails -- file previously closed with
    LOCK.                                         94           38
    OPEN fails -- file created with different
    organization.                                 94           39
    OPEN fails -- file created with different
    prime record key.                             94           39
    OPEN fails -- file created with different
    alternate record keys.                        94           39
    OPEN fails -- file currently open.            94           41
    READ or START fails -- file not opened
    INPUT or I-O.                                 94           47
    WRITE fails -- file not opened OUTPUT,
    EXTEND, or I-O.                               94           48
    DELETE or REWRITE fails -- file not
    opened I-O.                                   94           49
    OPEN INPUT on a nonoptional file -- file
    not found.                                    97           35
    __________________________________________________________________
