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git.proxmox.com Git - mirror_edk2.git/blob - StdLib/LibC/Stdio/fgetwc.c
2 Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
3 This program and the accompanying materials are licensed and made available
4 under the terms and conditions of the BSD License that accompanies this
5 distribution. The full text of the license may be found at
6 http://opensource.org/licenses/bsd-license.
8 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
9 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11 * Copyright (c)2001 Citrus Project,
12 * All rights reserved.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 NetBSD: fgetwc.c,v 1.5 2006/07/03 17:06:36 tnozaki Exp
39 #include <LibConfig.h>
40 #include <sys/EfiCdefs.h>
46 #include "reentrant.h"
50 __fgetwc_unlock(FILE *fp
)
52 struct wchar_io_data
*wcio
;
57 _DIAGASSERT(fp
!= NULL
);
63 _SET_ORIENTATION(fp
, 1);
70 /* if there're ungetwc'ed wchars, use them */
71 if (wcio
->wcio_ungetwc_inbuf
) {
72 wc
= wcio
->wcio_ungetwc_buf
[--wcio
->wcio_ungetwc_inbuf
];
77 st
= &wcio
->wcio_mbstate_in
;
88 size
= mbrtowc(&wc
, &c
, 1, st
);
89 if (size
== (size_t)-1) {
94 } while (size
== (size_t)-2);
96 _DIAGASSERT(size
== 1);
106 _DIAGASSERT(fp
!= NULL
);
113 r
= __fgetwc_unlock(fp
);