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 $ */
5 * Copyright (c)2001 Citrus Project,
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
35 /* minimal requirement of SUSv2 */
36 #define WCIO_UNGETWC_BUFSIZE 1
38 struct wchar_io_data
{
39 mbstate_t wcio_mbstate_in
;
40 mbstate_t wcio_mbstate_out
;
42 wchar_t wcio_ungetwc_buf
[WCIO_UNGETWC_BUFSIZE
];
43 size_t wcio_ungetwc_inbuf
;
45 int wcio_mode
; /* orientation */
48 #define WCIO_GET(fp) \
49 (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0)
51 #define WCIO_GET_NONULL(fp) \
54 #define _SET_ORIENTATION(fp, mode) \
56 struct wchar_io_data *_wcio = WCIO_GET(fp); \
57 if (_wcio && _wcio->wcio_mode == 0) \
58 _wcio->wcio_mode = (mode);\
62 * WCIO_FREE should be called by fclose
64 #define WCIO_FREE(fp) \
66 struct wchar_io_data *_wcio = WCIO_GET(fp); \
68 _wcio->wcio_mode = 0;\
69 _wcio->wcio_ungetwc_inbuf = 0;\
73 #define WCIO_FREEUB(fp) \
75 struct wchar_io_data *_wcio = WCIO_GET(fp); \
77 _wcio->wcio_ungetwc_inbuf = 0;\
81 #define WCIO_INIT(fp) \
82 memset(WCIO_GET_NONULL(fp), 0, sizeof(struct wchar_io_data))
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