]>
Commit | Line | Data |
---|---|---|
28af1fb3 JW |
1 | // <codecvt> -*- C++ -*- |
2 | ||
a5544970 | 3 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
28af1fb3 JW |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // Under Section 7 of GPL version 3, you are granted additional | |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
24 | ||
25 | // ISO C++ 14882: 22.5 Standard code conversion facets | |
26 | ||
27 | /** @file include/codecvt | |
28 | * This is a Standard C++ Library header. | |
29 | */ | |
30 | ||
31 | #ifndef _GLIBCXX_CODECVT | |
32 | #define _GLIBCXX_CODECVT 1 | |
33 | ||
34 | #pragma GCC system_header | |
35 | ||
36 | #if __cplusplus < 201103L | |
37 | # include <bits/c++0x_warning.h> | |
38 | #else | |
39 | ||
40 | #include <bits/locale_classes.h> | |
41 | #include <bits/codecvt.h> | |
42 | ||
28af1fb3 JW |
43 | namespace std _GLIBCXX_VISIBILITY(default) |
44 | { | |
45 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
46 | ||
47 | enum codecvt_mode | |
48 | { | |
49 | consume_header = 4, | |
50 | generate_header = 2, | |
51 | little_endian = 1 | |
52 | }; | |
53 | ||
54 | template<typename _Elem, unsigned long _Maxcode = 0x10ffff, | |
55 | codecvt_mode _Mode = (codecvt_mode)0> | |
56 | class codecvt_utf8 : public codecvt<_Elem, char, mbstate_t> | |
57 | { | |
58 | public: | |
59 | explicit | |
60 | codecvt_utf8(size_t __refs = 0); | |
61 | ||
62 | ~codecvt_utf8(); | |
63 | }; | |
64 | ||
65 | template<typename _Elem, unsigned long _Maxcode = 0x10ffff, | |
66 | codecvt_mode _Mode = (codecvt_mode)0> | |
67 | class codecvt_utf16 : public codecvt<_Elem, char, mbstate_t> | |
68 | { | |
69 | public: | |
70 | explicit | |
71 | codecvt_utf16(size_t __refs = 0); | |
72 | ||
73 | ~codecvt_utf16(); | |
74 | }; | |
75 | ||
76 | template<typename _Elem, unsigned long _Maxcode = 0x10ffff, | |
77 | codecvt_mode _Mode = (codecvt_mode)0> | |
78 | class codecvt_utf8_utf16 : public codecvt<_Elem, char, mbstate_t> | |
79 | { | |
80 | public: | |
81 | explicit | |
82 | codecvt_utf8_utf16(size_t __refs = 0); | |
83 | ||
84 | ~codecvt_utf8_utf16(); | |
85 | }; | |
86 | ||
87 | #define _GLIBCXX_CODECVT_SPECIALIZATION2(_NAME, _ELEM) \ | |
88 | template<> \ | |
89 | class _NAME<_ELEM> \ | |
90 | : public codecvt<_ELEM, char, mbstate_t> \ | |
91 | { \ | |
92 | public: \ | |
93 | typedef _ELEM intern_type; \ | |
94 | typedef char extern_type; \ | |
95 | typedef mbstate_t state_type; \ | |
96 | \ | |
97 | protected: \ | |
98 | _NAME(unsigned long __maxcode, codecvt_mode __mode, size_t __refs) \ | |
99 | : codecvt(__refs), _M_maxcode(__maxcode), _M_mode(__mode) { } \ | |
100 | \ | |
101 | virtual \ | |
102 | ~_NAME(); \ | |
103 | \ | |
104 | virtual result \ | |
105 | do_out(state_type& __state, const intern_type* __from, \ | |
106 | const intern_type* __from_end, const intern_type*& __from_next, \ | |
107 | extern_type* __to, extern_type* __to_end, \ | |
108 | extern_type*& __to_next) const; \ | |
109 | \ | |
110 | virtual result \ | |
111 | do_unshift(state_type& __state, \ | |
112 | extern_type* __to, extern_type* __to_end, \ | |
113 | extern_type*& __to_next) const; \ | |
114 | \ | |
115 | virtual result \ | |
116 | do_in(state_type& __state, \ | |
117 | const extern_type* __from, const extern_type* __from_end, \ | |
118 | const extern_type*& __from_next, \ | |
119 | intern_type* __to, intern_type* __to_end, \ | |
120 | intern_type*& __to_next) const; \ | |
121 | \ | |
122 | virtual \ | |
123 | int do_encoding() const throw(); \ | |
124 | \ | |
125 | virtual \ | |
126 | bool do_always_noconv() const throw(); \ | |
127 | \ | |
128 | virtual \ | |
129 | int do_length(state_type&, const extern_type* __from, \ | |
130 | const extern_type* __end, size_t __max) const; \ | |
131 | \ | |
132 | virtual int \ | |
133 | do_max_length() const throw(); \ | |
134 | \ | |
135 | private: \ | |
136 | unsigned long _M_maxcode; \ | |
137 | codecvt_mode _M_mode; \ | |
138 | } | |
139 | ||
140 | #define _GLIBCXX_CODECVT_SPECIALIZATION(_NAME, _ELEM) \ | |
141 | _GLIBCXX_CODECVT_SPECIALIZATION2(__ ## _NAME ## _base, _ELEM); \ | |
142 | template<unsigned long _Maxcode, codecvt_mode _Mode> \ | |
143 | class _NAME<_ELEM, _Maxcode, _Mode> \ | |
144 | : public __ ## _NAME ## _base<_ELEM> \ | |
145 | { \ | |
146 | public: \ | |
147 | explicit \ | |
148 | _NAME(size_t __refs = 0) \ | |
b6584a72 JW |
149 | : __ ## _NAME ## _base<_ELEM>(std::min(_Maxcode, 0x10fffful), \ |
150 | _Mode, __refs) \ | |
151 | { } \ | |
28af1fb3 JW |
152 | } |
153 | ||
154 | template<typename _Elem> class __codecvt_utf8_base; | |
155 | template<typename _Elem> class __codecvt_utf16_base; | |
156 | template<typename _Elem> class __codecvt_utf8_utf16_base; | |
157 | ||
158 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8, char16_t); | |
159 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf16, char16_t); | |
160 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8_utf16, char16_t); | |
161 | ||
162 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8, char32_t); | |
163 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf16, char32_t); | |
164 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8_utf16, char32_t); | |
165 | ||
166 | #ifdef _GLIBCXX_USE_WCHAR_T | |
167 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8, wchar_t); | |
168 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf16, wchar_t); | |
169 | _GLIBCXX_CODECVT_SPECIALIZATION(codecvt_utf8_utf16, wchar_t); | |
170 | #endif | |
171 | ||
172 | _GLIBCXX_END_NAMESPACE_VERSION | |
173 | } // namespace | |
174 | ||
612c9c70 | 175 | #endif // C++11 |
28af1fb3 JW |
176 | |
177 | #endif /* _GLIBCXX_CODECVT */ |