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RedHat 9 (Linux i386) - man page for rewind (redhat section 3)

FSEEK(3)			    Linux Programmer's Manual				 FSEEK(3)

       fgetpos, fseek, fsetpos, ftell, rewind - reposition a stream

       #include <stdio.h>

       int fseek(FILE *stream, long offset, int whence);
       long ftell(FILE *stream);
       void rewind(FILE *stream);
       int fgetpos(FILE *stream, fpos_t *pos);
       int fsetpos(FILE *stream, fpos_t *pos);

       The  fseek  function sets the file position indicator for the stream pointed to by stream.
       The new position, measured in bytes, is obtained by adding offset bytes	to  the  position
       specified  by  whence.  If whence is set to SEEK_SET, SEEK_CUR, or SEEK_END, the offset is
       relative to the start of the file, the current position indicator, or end-of-file, respec-
       tively.	 A successful call to the fseek function clears the end-of-file indicator for the
       stream and undoes any effects of the ungetc(3) function on the same stream.

       The ftell function obtains the current value of the file position indicator for the stream
       pointed to by stream.

       The  rewind  function sets the file position indicator for the stream pointed to by stream
       to the beginning of the file.  It is equivalent to:

	      (void)fseek(stream, 0L, SEEK_SET)

       except that the error indicator for the stream is also cleared (see clearerr(3)).

       The fgetpos and fsetpos functions are alternate interfaces equivalent to ftell  and  fseek
       (with  whence  set  to SEEK_SET), setting and storing the current value of the file offset
       into or from the object referenced by pos.  On some non-UNIX systems an fpos_t object  may
       be  a  complex object and these routines may be the only way to portably reposition a text

       The rewind function returns no value.  Upon successful completion, fgetpos, fseek, fsetpos
       return  0, and ftell returns the current offset.  Otherwise, -1 is returned and the global
       variable errno is set to indicate the error.

       EBADF  The stream specified is not a seekable stream.

       EINVAL The whence argument to fseek was not SEEK_SET, SEEK_END, or SEEK_CUR.

       The function fgetpos, fseek, fsetpos, and ftell may also fail and set errno for any of the
       errors specified for the routines fflush(3), fstat(2), lseek(2), and malloc(3).

       The  fgetpos,  fsetpos,	fseek,	ftell,	and  rewind functions conform to ANSI X3.159-1989
       (``ANSI C'').

       lseek(2), fseeko(3)

BSD MANPAGE				    1993-11-29					 FSEEK(3)

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