Update version to 0.16
[ust.git] / snprintf / wcio.h
1 /* $OpenBSD: wcio.h,v 1.1 2005/06/17 20:40:32 espie Exp $ */
2 /* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */
3
4 /*-
5 * Copyright (c)2001 Citrus Project,
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $Citrus$
30 */
31
32 #ifndef _WCIO_H_
33 #define _WCIO_H_
34
35 /* minimal requirement of SUSv2 */
36 #define WCIO_UNGETWC_BUFSIZE 1
37
38 struct wchar_io_data {
39 mbstate_t wcio_mbstate_in;
40 mbstate_t wcio_mbstate_out;
41
42 wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE];
43 size_t wcio_ungetwc_inbuf;
44
45 int wcio_mode; /* orientation */
46 };
47
48 #define WCIO_GET(fp) \
49 (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0)
50
51 #define WCIO_GET_NONULL(fp) \
52 (&(_EXT(fp)->_wcio))
53
54 #define _SET_ORIENTATION(fp, mode) \
55 do {\
56 struct wchar_io_data *_wcio = WCIO_GET(fp); \
57 if (_wcio && _wcio->wcio_mode == 0) \
58 _wcio->wcio_mode = (mode);\
59 } while (0)
60
61 /*
62 * WCIO_FREE should be called by fclose
63 */
64 #define WCIO_FREE(fp) \
65 do {\
66 struct wchar_io_data *_wcio = WCIO_GET(fp); \
67 if (_wcio) { \
68 _wcio->wcio_mode = 0;\
69 _wcio->wcio_ungetwc_inbuf = 0;\
70 } \
71 } while (0)
72
73 #define WCIO_FREEUB(fp) \
74 do {\
75 struct wchar_io_data *_wcio = WCIO_GET(fp); \
76 if (_wcio) { \
77 _wcio->wcio_ungetwc_inbuf = 0;\
78 } \
79 } while (0)
80
81 #define WCIO_INIT(fp) \
82 memset(WCIO_GET_NONULL(fp), 0, sizeof(struct wchar_io_data))
83
84 #endif /*_WCIO_H_*/
This page took 0.041113 seconds and 4 git commands to generate.