Visible to Intel only — GUID: GUID-4F3CCEA9-F476-4758-9A81-D796E9847093
Visible to Intel only — GUID: GUID-4F3CCEA9-F476-4758-9A81-D796E9847093
PXFLSEEK
POSIX Subroutine: Positions a file a specified distance in bytes.
Module
USE IFPOSIX
CALL PXFLSEEK (ifildes,ioffset,iwhence,iposition,ierror)
ifildes |
(Input) INTEGER(4). A file descriptor. |
ioffset |
(Input) INTEGER(4). The number of bytes to move. |
iwhence |
(Input) INTEGER(4). The starting position. The value must be one of the following:
|
iposition |
(Output) INTEGER(4). The ending position; the resulting offset location as measured in bytes from the beginning of the file. |
ierror |
(Output) INTEGER(4). The error status. |
If successful, ierror is set to zero; otherwise, an error code.
The PXFLSEEK subroutine repositions the offset of file descriptor ifildes to the argument ioffset according to the value of argument iwhence.
PXFLSEEK allows the file offset to be set beyond the end of the existing end-of-file. If data is later written at this point, subsequent reads of the data in the gap return bytes of zeros (until data is actually written into the gap).