1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* 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
SYNOPSIS
#include <stdio.h>
void rewind(FILE *<[fp]>);
void _rewind_r(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,
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 */
|
