1 // Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. 2 // 3 // This file is part of the GNU ISO C++ Library. This library is free 4 // software; you can redistribute it and/or modify it under the 5 // terms of the GNU General Public License as published by the 6 // Free Software Foundation; either version 2, or (at your option) 7 // any later version. 8 9 // This library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 14 // You should have received a copy of the GNU General Public License along 15 // with this library; see the file COPYING. If not, write to the Free 16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 17 // USA. 18 19 // As a special exception, you may use this file as part of a free software 20 // library without restriction. Specifically, if other files instantiate 21 // templates or use macros or inline functions from this file, or you compile 22 // this file and link it with other files to produce an executable, this 23 // file does not by itself cause the resulting executable to be covered by 24 // the GNU General Public License. This exception does not however 25 // invalidate any other reasons why the executable file might be covered by 26 // the GNU General Public License. 27 28 // Written by Benjamin Kosnik <[email protected]> 29 30 #include <locale> 31 32 namespace std 33 { 34 // Definitions for locale::id of standard facets that are specialized. 35 locale::id codecvt<char, char, mbstate_t>::id; 36 37 #ifdef _GLIBCPP_USE_WCHAR_T 38 locale::id codecvt<wchar_t, char, mbstate_t>::id; 39 #endif 40 41 #ifdef _GLIBCPP_USE___ENC_TRAITS 42 // Definitions for static const data members of __enc_traits. 43 const int __enc_traits::_S_max_size; 44 #endif 45 46 codecvt<char, char, mbstate_t>:: 47 codecvt(size_t __refs) 48 : __codecvt_abstract_base<char, char, mbstate_t>(__refs) 49 { } 50 51 codecvt<char, char, mbstate_t>:: 52 ~codecvt() 53 { } 54 55 codecvt_base::result 56 codecvt<char, char, mbstate_t>:: 57 do_out(state_type&, const intern_type* __from, 58 const intern_type*, const intern_type*& __from_next, 59 extern_type* __to, extern_type*, 60 extern_type*& __to_next) const 61 { 62 // _GLIBCPP_RESOLVE_LIB_DEFECTS 63 // According to the resolution of DR19, "If returns noconv [...] 64 // there are no changes to the values in [to, to_limit)." 65 __from_next = __from; 66 __to_next = __to; 67 return noconv; 68 } 69 70 codecvt_base::result 71 codecvt<char, char, mbstate_t>:: 72 do_unshift(state_type&, extern_type* __to, 73 extern_type*, extern_type*& __to_next) const 74 { 75 __to_next = __to; 76 return noconv; 77 } 78 79 codecvt_base::result 80 codecvt<char, char, mbstate_t>:: 81 do_in(state_type&, const extern_type* __from, 82 const extern_type*, const extern_type*& __from_next, 83 intern_type* __to, intern_type*, 84 intern_type*& __to_next) const 85 { 86 // _GLIBCPP_RESOLVE_LIB_DEFECTS 87 // According to the resolution of DR19, "If returns noconv [...] 88 // there are no changes to the values in [to, to_limit)." 89 __from_next = __from; 90 __to_next = __to; 91 return noconv; 92 } 93 94 int 95 codecvt<char, char, mbstate_t>:: 96 do_encoding() const throw() 97 { return 1; } 98 99 bool 100 codecvt<char, char, mbstate_t>:: 101 do_always_noconv() const throw() 102 { return true; } 103 104 int 105 codecvt<char, char, mbstate_t>:: 106 do_length (const state_type&, const extern_type* __from, 107 const extern_type* __end, size_t __max) const 108 { return min(__max, static_cast<size_t>(__end - __from)); } 109 110 int 111 codecvt<char, char, mbstate_t>:: 112 do_max_length() const throw() 113 { return 1; } 114 115 #ifdef _GLIBCPP_USE_WCHAR_T 116 // codecvt<wchar_t, char, mbstate_t> required specialization 117 codecvt<wchar_t, char, mbstate_t>:: 118 codecvt(size_t __refs) 119 : __codecvt_abstract_base<wchar_t, char, mbstate_t>(__refs) 120 { } 121 122 codecvt<wchar_t, char, mbstate_t>:: 123 ~codecvt() 124 { } 125 126 codecvt_base::result 127 codecvt<wchar_t, char, mbstate_t>:: 128 do_unshift(state_type&, extern_type* __to, 129 extern_type*, extern_type*& __to_next) const 130 { 131 __to_next = __to; 132 return noconv; 133 } 134 135 int 136 codecvt<wchar_t, char, mbstate_t>:: 137 do_encoding() const throw() 138 { return sizeof(wchar_t); } 139 140 bool 141 codecvt<wchar_t, char, mbstate_t>:: 142 do_always_noconv() const throw() 143 { return false; } 144 145 int 146 codecvt<wchar_t, char, mbstate_t>:: 147 do_length(const state_type&, const extern_type* __from, 148 const extern_type* __end, size_t __max) const 149 { return min(__max, static_cast<size_t>(__end - __from)); } 150 151 int 152 codecvt<wchar_t, char, mbstate_t>:: 153 do_max_length() const throw() 154 { return 1; } 155 #endif // _GLIBCPP_USE_WCHAR_T 156 } // namespace std 157