Rewrite the record indicated by a relative record number (random rewrite).
long cobfa_rewrec ( long fd, /* file descriptor */ const char *recarea, /* record area */ long reclen, /* rewritten record length */ unsigned long recnum /* relative record number */ );
Description
In the file indicated by the file descriptor <fd>, the record indicated by a relative record number <recnum> is rewritten by the contents of the record area <recarea>.
The rewritten record length <reclen> specified is valid only if the file is in the variable-length format.
Execution Conditions
File Organization | Sequential file | - |
Record sequential file | - | |
Relative file | Executable | |
Indexed file | - | |
Open Mode | INPUT mode | - |
OUTPUT mode | - | |
I-O mode | Executable | |
EXTEND mode | - | |
Access Mode | Sequential | - |
Random | Executable | |
Dynamic | Executable |
Return Values
0: Successful | Function executed successfully |
-1: Failed | Function failed. To get extended error information, call the cobfa_errno or cobfa_stat functions |
Generated Status
Return value of cobfa_errno () | Return value of cobfa_stat () | ||
|---|---|---|---|
Successful | FA_ENOERR | 0 | Function executed successfully |
Failure (not all) (*) | FA_EBADLENG | 44 | The specified value of the rewritten record length is out of the permissible range |
* : See "3.4 cobfa_delrec()" for additional values.
