Subversion Repositories openrisc_2011-10-31

/*

 * 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

INDEX

        _rewind_r

ANSI_SYNOPSIS

        #include <stdio.h>

        void rewind(FILE *<[fp]>);

        void _rewind_r(struct _reent *<[ptr]>, FILE *<[fp]>);

TRAD_SYNOPSIS

        #include <stdio.h>

        void rewind(<[fp]>)

        FILE *<[fp]>;

        void _rewind_r(<[ptr]>, <[fp]>)

        struct _reent *<[ptr]>;

        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.

*/

#if defined(LIBC_SCCS) && !defined(lint)

static char sccsid[] = "%W% (Berkeley) %G%";

#endif /* LIBC_SCCS and not lint */

#include <_ansi.h>

#include <reent.h>

#include <stdio.h>

_VOID

_DEFUN(_rewind_r, (ptr, fp),

       struct _reent * ptr _AND

       register FILE * fp)

{

  _CAST_VOID _fseek_r (ptr, fp, 0L, SEEK_SET);

  clearerr (fp);

}

#ifndef _REENT_ONLY

_VOID

_DEFUN(rewind, (fp),

       register FILE * fp)

{

  _rewind_r (_REENT, fp);

}

#endif /* !_REENT_ONLY */