fpdata_change()

Function fpdata_change is used to change a data node record.

The syntax for fpdata_change is as follows:

fpdata_change(int file_id, char *record, int *recno)

   int file_id       - File unit of open file from previous 
                       fpfile_open function.
    
   char *record      - Record buffer with key values to be changed.

   int *recno        - Record address from a previous get/lock operation.

The possible values for fperrno and an explanation of each value follow.

     Value            Explanation
     --------------------------------------------------
     FEROK  - Code  0: Successful FASTPLUS Operation 
     FERACC - Code  2: Illegal access rights
     FEROPN - Code  5: FAST file does not exist
     FERUNT - Code  6: Illegal FAST file id
     FERLEN - Code  7: Illegal record length
     FERDSK - Code  8: Disk is full
     FERFHE - Code  9: System file error
     FEREXT - Code 12: Record not found
     FERNLK - Code 16: Record not locked
     FERFCT - Code 19: Illegal function