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(7).

ATTRIBUTES

See attributes(7) 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(7), lf64(7), standards(7)

July 24, 2002 FSETPOS(3C)