1 /*
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms are permitted
6 * provided that the above copyright notice and this paragraph are
7 * duplicated in all such forms and that any documentation,
8 * and/or other materials related to such
9 * distribution and use acknowledge that the software was developed
10 * by the University of California, Berkeley. The name of the
11 * University may not be used to endorse or promote products derived
12 * from this software without specific prior written permission.
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16 */
17
18 /*
19 FUNCTION
20 <<rewind>>---reinitialize a file or stream
21
22 INDEX
23 rewind
24 INDEX
25 _rewind_r
26
27 SYNOPSIS
28 #include <stdio.h>
29 void rewind(FILE *<[fp]>);
30 void rewind( FILE *<[fp]>);
31
32 DESCRIPTION
33 <<rewind>> returns the file position indicator (if any) for the file
34 or stream identified by <[fp]> to the beginning of the file. It also
35 clears any error indicator and flushes any pending output.
36
37 RETURNS
38 <<rewind>> does not return a result.
39
40 PORTABILITY
41 ANSI C requires <<rewind>>.
42
43 No supporting OS subroutines are required.
44 */
45
46 #if defined(LIBC_SCCS) && !defined(lint)
47 static char sccsid[] = "%W% (Berkeley) %G%";
48 #endif /* LIBC_SCCS and not lint */
49
50 #define _DEFAULT_SOURCE
51 #include <_ansi.h>
52 #include <stdio.h>
53
54 void
rewind(register FILE * fp)55 rewind (
56 register FILE * fp)
57 {
58 (void) fseek ( fp, 0L, SEEK_SET);
59 clearerr (fp);
60 }
61
