f_truncate

The f_truncate function truncates the file size.

FRESULT f_truncate (
  FIL* fp     /* [IN] File object */
);

Parameter

fp
Pointer to the open file object to be truncated.

Return Values

FR_OK, FR_DISK_ERR, FR_INT_ERR, FR_NOT_READY, FR_INVALID_OBJECT, FR_TIMEOUT

Description

The f_truncate() function truncates the file size to the current file read/write pointer. This function has no effect if the file read/write pointer is already pointing end of the file.

QuickInfo

Available when _FS_READONLY == 0 and _FS_MINIMIZE == 0.

See Also

f_open, f_lseek, FIL

Return