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
|
/* Store a character in UTF-16 string.
Copyright (C) 2002, 2005-2006, 2009-2024 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2002.
This file is free software.
It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
You can redistribute it and/or modify it under either
- the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3, or (at your
option) any later version, or
- the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option)
any later version, or
- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
This file 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
Lesser General Public License and the GNU General Public License
for more details.
You should have received a copy of the GNU Lesser General Public
License and of the GNU General Public License along with this
program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#if defined IN_LIBUNISTRING
/* Tell unistr.h to declare u16_uctomb as 'extern', not 'static inline'. */
# include "unistring-notinline.h"
#endif
/* Specification. */
#include "unistr.h"
#if !HAVE_INLINE
int
u16_uctomb (uint16_t *s, ucs4_t uc, ptrdiff_t n)
{
if (uc < 0xd800)
{
if (n > 0)
{
s[0] = uc;
return 1;
}
/* else return -2, below. */
}
else if (uc < 0x10000)
{
if (uc >= 0xe000)
{
if (n >= 1)
{
s[0] = uc;
return 1;
}
}
else
return -1;
}
else
{
if (uc < 0x110000)
{
if (n >= 2)
{
s[0] = 0xd800 + ((uc - 0x10000) >> 10);
s[1] = 0xdc00 + ((uc - 0x10000) & 0x3ff);
return 2;
}
}
else
return -1;
}
return -2;
}
#endif
|
