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| 1 | 13 | up20180614 | // -*- C++ -*- |
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| 2 | //===-------------------------- codecvt -----------------------------------===// |
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| 3 | // |
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| 4 | // The LLVM Compiler Infrastructure |
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| 5 | // |
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| 6 | // This file is dual licensed under the MIT and the University of Illinois Open |
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| 7 | // Source Licenses. See LICENSE.TXT for details. |
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| 8 | // |
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| 9 | //===----------------------------------------------------------------------===// |
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| 10 | |||
| 11 | #ifndef _LIBCPP_CODECVT |
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| 12 | #define _LIBCPP_CODECVT |
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| 13 | |||
| 14 | /* |
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| 15 | codecvt synopsis |
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| 16 | |||
| 17 | namespace std |
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| 18 | {
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| 19 | |||
| 20 | enum codecvt_mode |
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| 21 | {
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| 22 | consume_header = 4, |
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| 23 | generate_header = 2, |
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| 24 | little_endian = 1 |
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| 25 | }; |
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| 26 | |||
| 27 | template <class Elem, unsigned long Maxcode = 0x10ffff, |
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| 28 | codecvt_mode Mode = (codecvt_mode)0> |
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| 29 | class codecvt_utf8 |
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| 30 | : public codecvt<Elem, char, mbstate_t> |
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| 31 | {
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| 32 | explicit codecvt_utf8(size_t refs = 0); |
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| 33 | ~codecvt_utf8(); |
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| 34 | }; |
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| 35 | |||
| 36 | template <class Elem, unsigned long Maxcode = 0x10ffff, |
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| 37 | codecvt_mode Mode = (codecvt_mode)0> |
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| 38 | class codecvt_utf16 |
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| 39 | : public codecvt<Elem, char, mbstate_t> |
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| 40 | {
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| 41 | explicit codecvt_utf16(size_t refs = 0); |
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| 42 | ~codecvt_utf16(); |
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| 43 | }; |
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| 44 | |||
| 45 | template <class Elem, unsigned long Maxcode = 0x10ffff, |
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| 46 | codecvt_mode Mode = (codecvt_mode)0> |
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| 47 | class codecvt_utf8_utf16 |
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| 48 | : public codecvt<Elem, char, mbstate_t> |
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| 49 | {
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| 50 | explicit codecvt_utf8_utf16(size_t refs = 0); |
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| 51 | ~codecvt_utf8_utf16(); |
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| 52 | }; |
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| 53 | |||
| 54 | } // std |
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| 55 | |||
| 56 | */ |
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| 57 | |||
| 58 | #include <__config> |
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| 59 | #include <__locale> |
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| 60 | |||
| 61 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
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| 62 | #pragma GCC system_header |
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| 63 | #endif |
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| 64 | |||
| 65 | _LIBCPP_BEGIN_NAMESPACE_STD |
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| 66 | |||
| 67 | enum codecvt_mode |
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| 68 | {
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| 69 | consume_header = 4, |
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| 70 | generate_header = 2, |
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| 71 | little_endian = 1 |
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| 72 | }; |
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| 73 | |||
| 74 | // codecvt_utf8 |
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| 75 | |||
| 76 | template <class _Elem> class __codecvt_utf8; |
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| 77 | |||
| 78 | template <> |
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| 79 | class _LIBCPP_TYPE_VIS __codecvt_utf8<wchar_t> |
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| 80 | : public codecvt<wchar_t, char, mbstate_t> |
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| 81 | {
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| 82 | unsigned long _Maxcode_; |
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| 83 | codecvt_mode _Mode_; |
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| 84 | public: |
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| 85 | typedef wchar_t intern_type; |
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| 86 | typedef char extern_type; |
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| 87 | typedef mbstate_t state_type; |
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| 88 | |||
| 89 | _LIBCPP_ALWAYS_INLINE |
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| 90 | explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode, |
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| 91 | codecvt_mode _Mode) |
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| 92 | : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 93 | _Mode_(_Mode) {}
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| 94 | protected: |
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| 95 | virtual result |
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| 96 | do_out(state_type& __st, |
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| 97 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 98 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 99 | virtual result |
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| 100 | do_in(state_type& __st, |
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| 101 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 102 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 103 | virtual result |
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| 104 | do_unshift(state_type& __st, |
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| 105 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 106 | virtual int do_encoding() const throw(); |
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| 107 | virtual bool do_always_noconv() const throw(); |
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| 108 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 109 | size_t __mx) const; |
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| 110 | virtual int do_max_length() const throw(); |
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| 111 | }; |
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| 112 | |||
| 113 | template <> |
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| 114 | class _LIBCPP_TYPE_VIS __codecvt_utf8<char16_t> |
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| 115 | : public codecvt<char16_t, char, mbstate_t> |
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| 116 | {
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| 117 | unsigned long _Maxcode_; |
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| 118 | codecvt_mode _Mode_; |
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| 119 | public: |
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| 120 | typedef char16_t intern_type; |
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| 121 | typedef char extern_type; |
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| 122 | typedef mbstate_t state_type; |
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| 123 | |||
| 124 | _LIBCPP_ALWAYS_INLINE |
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| 125 | explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode, |
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| 126 | codecvt_mode _Mode) |
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| 127 | : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 128 | _Mode_(_Mode) {}
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| 129 | protected: |
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| 130 | virtual result |
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| 131 | do_out(state_type& __st, |
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| 132 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 133 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 134 | virtual result |
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| 135 | do_in(state_type& __st, |
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| 136 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 137 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 138 | virtual result |
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| 139 | do_unshift(state_type& __st, |
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| 140 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 141 | virtual int do_encoding() const throw(); |
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| 142 | virtual bool do_always_noconv() const throw(); |
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| 143 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 144 | size_t __mx) const; |
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| 145 | virtual int do_max_length() const throw(); |
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| 146 | }; |
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| 147 | |||
| 148 | template <> |
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| 149 | class _LIBCPP_TYPE_VIS __codecvt_utf8<char32_t> |
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| 150 | : public codecvt<char32_t, char, mbstate_t> |
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| 151 | {
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| 152 | unsigned long _Maxcode_; |
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| 153 | codecvt_mode _Mode_; |
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| 154 | public: |
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| 155 | typedef char32_t intern_type; |
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| 156 | typedef char extern_type; |
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| 157 | typedef mbstate_t state_type; |
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| 158 | |||
| 159 | _LIBCPP_ALWAYS_INLINE |
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| 160 | explicit __codecvt_utf8(size_t __refs, unsigned long _Maxcode, |
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| 161 | codecvt_mode _Mode) |
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| 162 | : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 163 | _Mode_(_Mode) {}
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| 164 | protected: |
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| 165 | virtual result |
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| 166 | do_out(state_type& __st, |
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| 167 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 168 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 169 | virtual result |
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| 170 | do_in(state_type& __st, |
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| 171 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 172 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 173 | virtual result |
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| 174 | do_unshift(state_type& __st, |
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| 175 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 176 | virtual int do_encoding() const throw(); |
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| 177 | virtual bool do_always_noconv() const throw(); |
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| 178 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 179 | size_t __mx) const; |
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| 180 | virtual int do_max_length() const throw(); |
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| 181 | }; |
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| 182 | |||
| 183 | template <class _Elem, unsigned long _Maxcode = 0x10ffff, |
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| 184 | codecvt_mode _Mode = (codecvt_mode)0> |
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| 185 | class _LIBCPP_TYPE_VIS_ONLY codecvt_utf8 |
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| 186 | : public __codecvt_utf8<_Elem> |
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| 187 | {
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| 188 | public: |
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| 189 | _LIBCPP_ALWAYS_INLINE |
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| 190 | explicit codecvt_utf8(size_t __refs = 0) |
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| 191 | : __codecvt_utf8<_Elem>(__refs, _Maxcode, _Mode) {}
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| 192 | |||
| 193 | _LIBCPP_ALWAYS_INLINE |
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| 194 | ~codecvt_utf8() {}
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| 195 | }; |
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| 196 | |||
| 197 | // codecvt_utf16 |
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| 198 | |||
| 199 | template <class _Elem, bool _LittleEndian> class __codecvt_utf16; |
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| 200 | |||
| 201 | template <> |
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| 202 | class _LIBCPP_TYPE_VIS __codecvt_utf16<wchar_t, false> |
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| 203 | : public codecvt<wchar_t, char, mbstate_t> |
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| 204 | {
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| 205 | unsigned long _Maxcode_; |
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| 206 | codecvt_mode _Mode_; |
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| 207 | public: |
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| 208 | typedef wchar_t intern_type; |
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| 209 | typedef char extern_type; |
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| 210 | typedef mbstate_t state_type; |
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| 211 | |||
| 212 | _LIBCPP_ALWAYS_INLINE |
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| 213 | explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
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| 214 | codecvt_mode _Mode) |
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| 215 | : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 216 | _Mode_(_Mode) {}
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| 217 | protected: |
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| 218 | virtual result |
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| 219 | do_out(state_type& __st, |
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| 220 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 221 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 222 | virtual result |
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| 223 | do_in(state_type& __st, |
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| 224 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 225 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 226 | virtual result |
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| 227 | do_unshift(state_type& __st, |
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| 228 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 229 | virtual int do_encoding() const throw(); |
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| 230 | virtual bool do_always_noconv() const throw(); |
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| 231 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 232 | size_t __mx) const; |
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| 233 | virtual int do_max_length() const throw(); |
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| 234 | }; |
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| 235 | |||
| 236 | template <> |
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| 237 | class _LIBCPP_TYPE_VIS __codecvt_utf16<wchar_t, true> |
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| 238 | : public codecvt<wchar_t, char, mbstate_t> |
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| 239 | {
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| 240 | unsigned long _Maxcode_; |
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| 241 | codecvt_mode _Mode_; |
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| 242 | public: |
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| 243 | typedef wchar_t intern_type; |
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| 244 | typedef char extern_type; |
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| 245 | typedef mbstate_t state_type; |
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| 246 | |||
| 247 | _LIBCPP_ALWAYS_INLINE |
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| 248 | explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
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| 249 | codecvt_mode _Mode) |
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| 250 | : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 251 | _Mode_(_Mode) {}
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| 252 | protected: |
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| 253 | virtual result |
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| 254 | do_out(state_type& __st, |
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| 255 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 256 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 257 | virtual result |
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| 258 | do_in(state_type& __st, |
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| 259 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 260 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 261 | virtual result |
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| 262 | do_unshift(state_type& __st, |
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| 263 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 264 | virtual int do_encoding() const throw(); |
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| 265 | virtual bool do_always_noconv() const throw(); |
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| 266 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 267 | size_t __mx) const; |
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| 268 | virtual int do_max_length() const throw(); |
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| 269 | }; |
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| 270 | |||
| 271 | template <> |
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| 272 | class _LIBCPP_TYPE_VIS __codecvt_utf16<char16_t, false> |
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| 273 | : public codecvt<char16_t, char, mbstate_t> |
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| 274 | {
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| 275 | unsigned long _Maxcode_; |
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| 276 | codecvt_mode _Mode_; |
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| 277 | public: |
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| 278 | typedef char16_t intern_type; |
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| 279 | typedef char extern_type; |
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| 280 | typedef mbstate_t state_type; |
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| 281 | |||
| 282 | _LIBCPP_ALWAYS_INLINE |
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| 283 | explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
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| 284 | codecvt_mode _Mode) |
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| 285 | : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 286 | _Mode_(_Mode) {}
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| 287 | protected: |
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| 288 | virtual result |
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| 289 | do_out(state_type& __st, |
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| 290 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 291 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 292 | virtual result |
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| 293 | do_in(state_type& __st, |
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| 294 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 295 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 296 | virtual result |
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| 297 | do_unshift(state_type& __st, |
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| 298 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 299 | virtual int do_encoding() const throw(); |
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| 300 | virtual bool do_always_noconv() const throw(); |
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| 301 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 302 | size_t __mx) const; |
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| 303 | virtual int do_max_length() const throw(); |
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| 304 | }; |
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| 305 | |||
| 306 | template <> |
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| 307 | class _LIBCPP_TYPE_VIS __codecvt_utf16<char16_t, true> |
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| 308 | : public codecvt<char16_t, char, mbstate_t> |
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| 309 | {
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| 310 | unsigned long _Maxcode_; |
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| 311 | codecvt_mode _Mode_; |
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| 312 | public: |
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| 313 | typedef char16_t intern_type; |
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| 314 | typedef char extern_type; |
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| 315 | typedef mbstate_t state_type; |
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| 316 | |||
| 317 | _LIBCPP_ALWAYS_INLINE |
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| 318 | explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
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| 319 | codecvt_mode _Mode) |
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| 320 | : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 321 | _Mode_(_Mode) {}
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| 322 | protected: |
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| 323 | virtual result |
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| 324 | do_out(state_type& __st, |
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| 325 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 326 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 327 | virtual result |
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| 328 | do_in(state_type& __st, |
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| 329 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 330 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 331 | virtual result |
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| 332 | do_unshift(state_type& __st, |
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| 333 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 334 | virtual int do_encoding() const throw(); |
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| 335 | virtual bool do_always_noconv() const throw(); |
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| 336 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 337 | size_t __mx) const; |
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| 338 | virtual int do_max_length() const throw(); |
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| 339 | }; |
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| 340 | |||
| 341 | template <> |
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| 342 | class _LIBCPP_TYPE_VIS __codecvt_utf16<char32_t, false> |
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| 343 | : public codecvt<char32_t, char, mbstate_t> |
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| 344 | {
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| 345 | unsigned long _Maxcode_; |
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| 346 | codecvt_mode _Mode_; |
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| 347 | public: |
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| 348 | typedef char32_t intern_type; |
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| 349 | typedef char extern_type; |
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| 350 | typedef mbstate_t state_type; |
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| 351 | |||
| 352 | _LIBCPP_ALWAYS_INLINE |
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| 353 | explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
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| 354 | codecvt_mode _Mode) |
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| 355 | : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 356 | _Mode_(_Mode) {}
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| 357 | protected: |
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| 358 | virtual result |
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| 359 | do_out(state_type& __st, |
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| 360 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 361 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 362 | virtual result |
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| 363 | do_in(state_type& __st, |
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| 364 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 365 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 366 | virtual result |
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| 367 | do_unshift(state_type& __st, |
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| 368 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 369 | virtual int do_encoding() const throw(); |
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| 370 | virtual bool do_always_noconv() const throw(); |
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| 371 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 372 | size_t __mx) const; |
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| 373 | virtual int do_max_length() const throw(); |
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| 374 | }; |
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| 375 | |||
| 376 | template <> |
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| 377 | class _LIBCPP_TYPE_VIS __codecvt_utf16<char32_t, true> |
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| 378 | : public codecvt<char32_t, char, mbstate_t> |
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| 379 | {
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| 380 | unsigned long _Maxcode_; |
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| 381 | codecvt_mode _Mode_; |
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| 382 | public: |
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| 383 | typedef char32_t intern_type; |
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| 384 | typedef char extern_type; |
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| 385 | typedef mbstate_t state_type; |
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| 386 | |||
| 387 | _LIBCPP_ALWAYS_INLINE |
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| 388 | explicit __codecvt_utf16(size_t __refs, unsigned long _Maxcode, |
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| 389 | codecvt_mode _Mode) |
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| 390 | : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 391 | _Mode_(_Mode) {}
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| 392 | protected: |
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| 393 | virtual result |
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| 394 | do_out(state_type& __st, |
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| 395 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 396 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 397 | virtual result |
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| 398 | do_in(state_type& __st, |
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| 399 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 400 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 401 | virtual result |
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| 402 | do_unshift(state_type& __st, |
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| 403 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 404 | virtual int do_encoding() const throw(); |
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| 405 | virtual bool do_always_noconv() const throw(); |
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| 406 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 407 | size_t __mx) const; |
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| 408 | virtual int do_max_length() const throw(); |
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| 409 | }; |
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| 410 | |||
| 411 | template <class _Elem, unsigned long _Maxcode = 0x10ffff, |
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| 412 | codecvt_mode _Mode = (codecvt_mode)0> |
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| 413 | class _LIBCPP_TYPE_VIS_ONLY codecvt_utf16 |
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| 414 | : public __codecvt_utf16<_Elem, _Mode & little_endian> |
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| 415 | {
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| 416 | public: |
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| 417 | _LIBCPP_ALWAYS_INLINE |
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| 418 | explicit codecvt_utf16(size_t __refs = 0) |
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| 419 | : __codecvt_utf16<_Elem, _Mode & little_endian>(__refs, _Maxcode, _Mode) {}
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| 420 | |||
| 421 | _LIBCPP_ALWAYS_INLINE |
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| 422 | ~codecvt_utf16() {}
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| 423 | }; |
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| 424 | |||
| 425 | // codecvt_utf8_utf16 |
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| 426 | |||
| 427 | template <class _Elem> class __codecvt_utf8_utf16; |
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| 428 | |||
| 429 | template <> |
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| 430 | class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<wchar_t> |
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| 431 | : public codecvt<wchar_t, char, mbstate_t> |
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| 432 | {
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| 433 | unsigned long _Maxcode_; |
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| 434 | codecvt_mode _Mode_; |
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| 435 | public: |
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| 436 | typedef wchar_t intern_type; |
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| 437 | typedef char extern_type; |
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| 438 | typedef mbstate_t state_type; |
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| 439 | |||
| 440 | _LIBCPP_ALWAYS_INLINE |
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| 441 | explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode, |
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| 442 | codecvt_mode _Mode) |
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| 443 | : codecvt<wchar_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 444 | _Mode_(_Mode) {}
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| 445 | protected: |
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| 446 | virtual result |
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| 447 | do_out(state_type& __st, |
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| 448 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 449 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 450 | virtual result |
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| 451 | do_in(state_type& __st, |
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| 452 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 453 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 454 | virtual result |
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| 455 | do_unshift(state_type& __st, |
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| 456 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 457 | virtual int do_encoding() const throw(); |
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| 458 | virtual bool do_always_noconv() const throw(); |
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| 459 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 460 | size_t __mx) const; |
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| 461 | virtual int do_max_length() const throw(); |
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| 462 | }; |
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| 463 | |||
| 464 | template <> |
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| 465 | class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<char32_t> |
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| 466 | : public codecvt<char32_t, char, mbstate_t> |
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| 467 | {
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| 468 | unsigned long _Maxcode_; |
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| 469 | codecvt_mode _Mode_; |
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| 470 | public: |
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| 471 | typedef char32_t intern_type; |
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| 472 | typedef char extern_type; |
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| 473 | typedef mbstate_t state_type; |
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| 474 | |||
| 475 | _LIBCPP_ALWAYS_INLINE |
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| 476 | explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode, |
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| 477 | codecvt_mode _Mode) |
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| 478 | : codecvt<char32_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 479 | _Mode_(_Mode) {}
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| 480 | protected: |
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| 481 | virtual result |
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| 482 | do_out(state_type& __st, |
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| 483 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 484 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 485 | virtual result |
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| 486 | do_in(state_type& __st, |
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| 487 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 488 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 489 | virtual result |
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| 490 | do_unshift(state_type& __st, |
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| 491 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 492 | virtual int do_encoding() const throw(); |
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| 493 | virtual bool do_always_noconv() const throw(); |
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| 494 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 495 | size_t __mx) const; |
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| 496 | virtual int do_max_length() const throw(); |
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| 497 | }; |
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| 498 | |||
| 499 | template <> |
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| 500 | class _LIBCPP_TYPE_VIS __codecvt_utf8_utf16<char16_t> |
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| 501 | : public codecvt<char16_t, char, mbstate_t> |
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| 502 | {
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| 503 | unsigned long _Maxcode_; |
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| 504 | codecvt_mode _Mode_; |
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| 505 | public: |
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| 506 | typedef char16_t intern_type; |
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| 507 | typedef char extern_type; |
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| 508 | typedef mbstate_t state_type; |
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| 509 | |||
| 510 | _LIBCPP_ALWAYS_INLINE |
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| 511 | explicit __codecvt_utf8_utf16(size_t __refs, unsigned long _Maxcode, |
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| 512 | codecvt_mode _Mode) |
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| 513 | : codecvt<char16_t, char, mbstate_t>(__refs), _Maxcode_(_Maxcode), |
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| 514 | _Mode_(_Mode) {}
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| 515 | protected: |
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| 516 | virtual result |
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| 517 | do_out(state_type& __st, |
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| 518 | const intern_type* __frm, const intern_type* __frm_end, const intern_type*& __frm_nxt, |
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| 519 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 520 | virtual result |
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| 521 | do_in(state_type& __st, |
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| 522 | const extern_type* __frm, const extern_type* __frm_end, const extern_type*& __frm_nxt, |
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| 523 | intern_type* __to, intern_type* __to_end, intern_type*& __to_nxt) const; |
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| 524 | virtual result |
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| 525 | do_unshift(state_type& __st, |
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| 526 | extern_type* __to, extern_type* __to_end, extern_type*& __to_nxt) const; |
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| 527 | virtual int do_encoding() const throw(); |
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| 528 | virtual bool do_always_noconv() const throw(); |
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| 529 | virtual int do_length(state_type&, const extern_type* __frm, const extern_type* __end, |
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| 530 | size_t __mx) const; |
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| 531 | virtual int do_max_length() const throw(); |
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| 532 | }; |
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| 533 | |||
| 534 | template <class _Elem, unsigned long _Maxcode = 0x10ffff, |
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| 535 | codecvt_mode _Mode = (codecvt_mode)0> |
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| 536 | class _LIBCPP_TYPE_VIS_ONLY codecvt_utf8_utf16 |
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| 537 | : public __codecvt_utf8_utf16<_Elem> |
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| 538 | {
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| 539 | public: |
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| 540 | _LIBCPP_ALWAYS_INLINE |
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| 541 | explicit codecvt_utf8_utf16(size_t __refs = 0) |
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| 542 | : __codecvt_utf8_utf16<_Elem>(__refs, _Maxcode, _Mode) {}
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| 543 | |||
| 544 | _LIBCPP_ALWAYS_INLINE |
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| 545 | ~codecvt_utf8_utf16() {}
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| 546 | }; |
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| 547 | |||
| 548 | _LIBCPP_END_NAMESPACE_STD |
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| 549 | |||
| 550 | #endif // _LIBCPP_CODECVT |