/* (codes -1 to -23 taken from previous xdf version when appliable) */
#define ERR_OK 0
#define ERR_NO_FILE -1          /* file is not open or does not exist */
#define ERR_FTAB_FULL -3        /* file table is full */
#define ERR_BAD_UNIT -5         /* invalid unit number */
#define ERR_NOT_COMP -6         /* src and dest files not compatible */
#define ERR_NO_WRITE -7         /* no write permission */
#define ERR_BAD_PAGENO -8       /* invalid page number */
#define ERR_BAD_HNDL -9         /* invalid handle */
#define ERR_SPECIAL -10         /* special record with idtyp=0 */
#define ERR_DELETED -11         /* deleted record */
#define ERR_NOT_FOUND -12       /* search target not found */
#define ERR_BAD_INIT -13        /* error in record initialisation */
#define ERR_BAD_DATYP -16       /* invalid datyp */
#define ERR_BAD_ADDR -18        /* addressing error (not a multiple of 64) */
#define ERR_BAD_DIM -19         /* dimension of buf too small */
#define ERR_BAD_OPT -20         /* invalid option name or value */
#define ERR_STILL_OPN -21       /* file already in used in write mode */
#define ERR_RDONLY -22          /* read only file */
#define ERR_BAD_LEN -23         /* invalid header length */

#define ERR_MEM_FULL -24        /* no more memory can be allocated */
#define ERR_NO_POS -25          /* no valid file position */
#define ERR_BAD_LINK -26        /* bad linked file reference */
#define ERR_FILE_OPN -27        /* file is already open */
#define ERR_DIR_FULL -28        /* directory of random file is full */
#define ERR_NO_FNOM -29         /* file not connected with fnom */
#define ERR_NO_LINK -30         /* file is not linked */
#define ERR_NO_TARGET -31       /* no valid search target */
#define ERR_BAD_CHKS -32        /* bad checksum */
#define ERR_BAD_DIR -33         /* incorect number of directory pages */
#define ERR_NOT_XDF -34         /* not an XDF file */
#define ERR_BAD_NSTAT -35       /* incorect number of stats */
#define ERR_OUT_RANGE -36       /* value out of valid range */
#define ERR_BAD_FTYPE -37       /* incorect file type */
#define ERR_NOT_IMPL -38        /* routine not implemented in FSTD98 */
#define ERR_NO_POSTFIX -39      /* invalid or no sequential record postfix */
#define ERR_STDF_VERSION -40    /* wrong version of standard file software */