FSETPOS(3C) Standard C Library Functions FSETPOS(3C)


NAME


fsetpos - reposition a file pointer in a stream

SYNOPSIS


#include <stdio.h>

int fsetpos(FILE *stream, const fpos_t *pos);


DESCRIPTION


The fsetpos() function sets the file position indicator for the stream
pointed to by stream according to the value of the object pointed to by
pos, which must be a value obtained from an earlier call to fgetpos(3C)
on the same stream.


A successful call to fsetpos() function clears the end-of-file indicator
for the stream and undoes any effects of ungetc(3C) on the same stream.
After an fsetpos() call, the next operation on an update stream may be
either input or output.

RETURN VALUES


The fsetpos() function returns 0 if it succeeds; otherwise it returns a
non-zero value and sets errno to indicate the error.

ERRORS


The fsetpos() function may fail if:

EBADF
The file descriptor underlying stream is not valid.


ESPIPE
The file descriptor underlying stream is associated with a
pipe, a FIFO, or a socket.


USAGE


The fsetpos() function has a transitional interface for 64-bit file
offsets. See lf64(5).

ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+

SEE ALSO


lseek(2), fgetpos(3C), fopen(3C), fseek(3C), ftell(3C), rewind(3C),
ungetc(3C), attributes(5), lf64(5), standards(5)


July 24, 2002 FSETPOS(3C)