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
73
74
75
76
77
78
79
80
|
/* Convert wide character to multibyte character.
Copyright (C) 2008-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2008.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <wchar.h>
#include <errno.h>
#include <stdlib.h>
size_t
wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
#undef wcrtomb
{
/* This implementation of wcrtomb supports only stateless encodings.
ps must be in the initial state. */
if (ps != NULL && !mbsinit (ps))
{
errno = EINVAL;
return (size_t)(-1);
}
#if !HAVE_WCRTOMB /* IRIX 6.5 */ \
|| WCRTOMB_RETVAL_BUG /* Solaris 11.3, MSVC */ \
|| WCRTOMB_C_LOCALE_BUG /* Android */
if (s == NULL)
/* We know the NUL wide character corresponds to the NUL character. */
return 1;
else
#endif
{
#if HAVE_WCRTOMB
# if WCRTOMB_C_LOCALE_BUG /* Android */
/* Implement consistently with mbrtowc(): through a 1:1 correspondence,
as in ISO-8859-1. */
if (wc >= 0 && wc <= 0xff)
{
*s = (unsigned char) wc;
return 1;
}
else
{
errno = EILSEQ;
return (size_t)(-1);
}
# else
return wcrtomb (s, wc, ps);
# endif
#else /* IRIX 6.5 */
/* Fallback for platforms that don't have wcrtomb().
Implement on top of wctomb().
This code is not multithread-safe. */
int ret = wctomb (s, wc);
if (ret >= 0)
return ret;
else
{
errno = EILSEQ;
return (size_t)(-1);
}
#endif
}
}
|
