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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/* Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU IO Library.
This library 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 2, or (at
your option) any later version.
This library 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 library; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA.
As a special exception, if you link this library with files
compiled with a GNU compiler to produce an executable, this does
not cause the resulting executable to be covered by the GNU General
Public License. This exception does not however invalidate any
other reasons why the executable file might be covered by the GNU
General Public License. */
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/* Slightly modified from glibc/libio/iofwide.c */
#include <libio.h>
#ifdef _GLIBCPP_USE_WCHAR_T
/* Prototypes of libio's codecvt functions. */
static enum __codecvt_result
do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const wchar_t *from_start, const wchar_t *from_end,
const wchar_t **from_stop, char *to_start, char *to_end,
char **to_stop);
static enum __codecvt_result
do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep, char *to_start,
char *to_end, char **to_stop);
static enum __codecvt_result
do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, const char **from_stop,
wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop);
static int
do_encoding(struct _IO_codecvt *codecvt);
static int
do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, _IO_size_t max);
static int
do_max_length(struct _IO_codecvt *codecvt);
static int
do_always_noconv(struct _IO_codecvt *codecvt);
/* The functions used in `codecvt' for libio are always the same. */
struct _IO_codecvt __c_libio_codecvt =
{
.__codecvt_destr = NULL, /* Destructor, never used. */
.__codecvt_do_out = do_out,
.__codecvt_do_unshift = do_unshift,
.__codecvt_do_in = do_in,
.__codecvt_do_encoding = do_encoding,
.__codecvt_do_always_noconv = do_always_noconv,
.__codecvt_do_length = do_length,
.__codecvt_do_max_length = do_max_length
};
static enum __codecvt_result
do_out(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const wchar_t *from_start, const wchar_t *from_end,
const wchar_t **from_stop, char *to_start, char *to_end,
char **to_stop)
{
enum __codecvt_result res = __codecvt_ok;
while (from_start < from_end)
{
if (to_start >= to_end)
{
res = __codecvt_partial;
break;
}
*to_start++ = (char) *from_start++;
}
*from_stop = from_start;
*to_stop = to_start;
return res;
}
static enum __codecvt_result
do_unshift(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
char *to_start, char *to_end, char **to_stop)
{
*to_stop = to_start;
return __codecvt_ok;
}
static enum __codecvt_result
do_in(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, const char **from_stop,
wchar_t *to_start, wchar_t *to_end, wchar_t **to_stop)
{
enum __codecvt_result res = __codecvt_ok;
while (from_start < from_end)
{
if (to_start >= to_end)
{
res = __codecvt_partial;
break;
}
*to_start++ = (wchar_t) *from_start++;
}
*from_stop = from_start;
*to_stop = to_start;
return res;
}
static int
do_encoding(struct _IO_codecvt *codecvt)
{ return 1; }
static int
do_always_noconv(struct _IO_codecvt *codecvt)
{ return 0; }
static int
do_length(struct _IO_codecvt *codecvt, __c_mbstate_t *statep,
const char *from_start, const char *from_end, _IO_size_t max)
{ return from_end - from_start; }
static int
do_max_length(struct _IO_codecvt *codecvt)
{ return 1; }
#endif /* _GLIBCPP_USE_WCHAR_T */
|
