1 /* Convert string to 32-bit wide string.
2 Copyright (C) 2020-2021 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 2020.
4
5 This file is free software: you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 This file is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17
18 #include <config.h>
19
20 /* Specification. */
21 #include <uchar.h>
22
23 #include <wchar.h>
24
25 #if (HAVE_WORKING_MBRTOC32 && !defined __GLIBC__) || _GL_LARGE_CHAR32_T
26 /* The char32_t encoding of a multibyte character may be different than its
27 wchar_t encoding, or char32_t is wider than wchar_t. */
28
29 # include <errno.h>
30 # include <limits.h>
31 # include <stdlib.h>
32
33 # include "strnlen1.h"
34
35 extern mbstate_t _gl_mbsrtoc32s_state;
36
37 # define FUNC mbsrtoc32s
38 # define DCHAR_T char32_t
39 # define INTERNAL_STATE _gl_mbsrtoc32s_state
40 # define MBRTOWC mbrtoc32
41 # include "mbsrtowcs-impl.h"
42
43 #else
44 /* char32_t and wchar_t are equivalent. */
45
46 # include "verify.h"
47
48 verify (sizeof (char32_t) == sizeof (wchar_t));
49
50 size_t
mbsrtoc32s(char32_t * dest,const char ** srcp,size_t len,mbstate_t * ps)51 mbsrtoc32s (char32_t *dest, const char **srcp, size_t len, mbstate_t *ps)
52 {
53 return mbsrtowcs ((wchar_t *) dest, srcp, len, ps);
54 }
55
56 #endif
57