/* REWIND.C
*
* Portions Copyright (c) 1990-1999 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
*/
/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/*
FUNCTION
<<rewind>>---reinitialize a file or stream
INDEX
rewind
ANSI_SYNOPSIS
#include <stdio.h>
void rewind(FILE *<[fp]>);
TRAD_SYNOPSIS
#include <stdio.h>
void rewind(<[fp]>)
FILE *<[fp]>;
DESCRIPTION
<<rewind>> returns the file position indicator (if any) for the file
or stream identified by <[fp]> to the beginning of the file. It also
clears any error indicator and flushes any pending output.
RETURNS
<<rewind>> does not return a result.
PORTABILITY
ANSI C requires <<rewind>>.
No supporting OS subroutines are required.
*/
#include <stdio.h>
/**
Repositions the file pointer to the beginning of a stream.
Sets the file pointer associated with the stream
to the beginning of the file.
@param Pointer to an open file.
*/
EXPORT_C void
rewind (FILE * fp)
{
(void) fflush (fp);
clearerr (fp);
if (fp->_seek == NULL)
return; /* ??? */
fp->_r = 0;
fp->_p = fp->_bf._base;
(void) (*fp->_seek) (fp->_cookie, (fpos_t) 0, SEEK_SET);
}