The Single UNIX ® Specification, Version 2
Copyright © 1997 The Open Group


fsetpos - set current file position


#include <stdio.h>

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


The fsetpos() function sets the file position and state indicators 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() 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() on the same stream. After an fsetpos() call, the next operation on an update stream may be either input or output.


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


The fsetpos() function may fail if:
The file descriptor underlying stream is not valid.
The file descriptor underlying stream is associated with a pipe or FIFO.








fopen(), ftell(), rewind(), ungetc(), <stdio.h>.


Derived from the ISO C standard.

UNIX ® is a registered Trademark of The Open Group.
Copyright © 1997 The Open Group
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