1 // localization implementation details, DragonFly version -*- C++ -*- 2 3 // Copyright (C) 2014-2020 Free Software Foundation, Inc. 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 // 26 // ISO C++ 14882: 22.8 Standard locale categories. 27 // 28 29 // Written by Benjamin Kosnik <bkoz@redhat.com> 30 // Modified for DragonFly by John Marino <gnugcc@marino.st> 31 // Modified for NetBSD by Christos Zoulas <christos@zoulas.com> and 32 // matthew green <mrg@eterna.com.au> 33 34 #include <cstdlib> 35 #include <locale> 36 #include <stdexcept> 37 #include <limits> 38 #include <langinfo.h> 39 #ifndef __NetBSD__ 40 #include <xlocale.h> 41 #endif 42 43 namespace std _GLIBCXX_VISIBILITY(default) 44 { 45 _GLIBCXX_BEGIN_NAMESPACE_VERSION 46 47 template<> 48 void __convert_to_v(const char * __s,float & __v,ios_base::iostate & __err,const __c_locale & __cloc)49 __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err, 50 const __c_locale& __cloc) throw() 51 { 52 char* __sanity; 53 __v = strtof_l(__s, &__sanity, (locale_t)__cloc); 54 55 // _GLIBCXX_RESOLVE_LIB_DEFECTS 56 // 23. Num_get overflow result. 57 if (__sanity == __s || *__sanity != '\0') 58 { 59 __v = 0.0f; 60 __err = ios_base::failbit; 61 } 62 else if (__v == numeric_limits<float>::infinity()) 63 { 64 __v = numeric_limits<float>::max(); 65 __err = ios_base::failbit; 66 } 67 else if (__v == -numeric_limits<float>::infinity()) 68 { 69 __v = -numeric_limits<float>::max(); 70 __err = ios_base::failbit; 71 } 72 } 73 74 template<> 75 void __convert_to_v(const char * __s,double & __v,ios_base::iostate & __err,const __c_locale & __cloc)76 __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err, 77 const __c_locale& __cloc) throw() 78 { 79 char* __sanity; 80 __v = strtod_l(__s, &__sanity, (locale_t)__cloc); 81 82 // _GLIBCXX_RESOLVE_LIB_DEFECTS 83 // 23. Num_get overflow result. 84 if (__sanity == __s || *__sanity != '\0') 85 { 86 __v = 0.0; 87 __err = ios_base::failbit; 88 } 89 else if (__v == numeric_limits<double>::infinity()) 90 { 91 __v = numeric_limits<double>::max(); 92 __err = ios_base::failbit; 93 } 94 else if (__v == -numeric_limits<double>::infinity()) 95 { 96 __v = -numeric_limits<double>::max(); 97 __err = ios_base::failbit; 98 } 99 } 100 101 template<> 102 void __convert_to_v(const char * __s,long double & __v,ios_base::iostate & __err,const __c_locale & __cloc)103 __convert_to_v(const char* __s, long double& __v, ios_base::iostate& __err, 104 const __c_locale& __cloc) throw() 105 { 106 char* __sanity; 107 __v = strtold_l(__s, &__sanity, (locale_t)__cloc); 108 109 // _GLIBCXX_RESOLVE_LIB_DEFECTS 110 // 23. Num_get overflow result. 111 if (__sanity == __s || *__sanity != '\0') 112 { 113 __v = 0.0l; 114 __err = ios_base::failbit; 115 } 116 else if (__v == numeric_limits<long double>::infinity()) 117 { 118 __v = numeric_limits<long double>::max(); 119 __err = ios_base::failbit; 120 } 121 else if (__v == -numeric_limits<long double>::infinity()) 122 { 123 __v = -numeric_limits<long double>::max(); 124 __err = ios_base::failbit; 125 } 126 } 127 128 void _S_create_c_locale(__c_locale & __cloc,const char * __s,__c_locale __old)129 locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s, 130 __c_locale __old) 131 { 132 __cloc = (__c_locale)newlocale(LC_ALL_MASK, __s, (locale_t)__old); 133 if (!__cloc) 134 { 135 // This named locale is not supported by the underlying OS. 136 __throw_runtime_error(__N("locale::facet::_S_create_c_locale " 137 "name not valid")); 138 } 139 } 140 141 void _S_destroy_c_locale(__c_locale & __cloc)142 locale::facet::_S_destroy_c_locale(__c_locale& __cloc) 143 { 144 if (__cloc && _S_get_c_locale() != __cloc) 145 freelocale((locale_t)__cloc); 146 } 147 148 __c_locale _S_clone_c_locale(__c_locale & __cloc)149 locale::facet::_S_clone_c_locale(__c_locale& __cloc) throw() 150 { return (__c_locale)duplocale((locale_t)__cloc); } 151 152 __c_locale _S_lc_ctype_c_locale(__c_locale __cloc,const char * __s)153 locale::facet::_S_lc_ctype_c_locale(__c_locale __cloc, const char* __s) 154 { 155 __c_locale __dup = (__c_locale)duplocale((locale_t)__cloc); 156 if (__dup == __c_locale(0)) 157 __throw_runtime_error(__N("locale::facet::_S_lc_ctype_c_locale " 158 "duplocale error")); 159 __c_locale __changed = (__c_locale)newlocale(LC_CTYPE_MASK, __s, 160 (locale_t)__dup); 161 if (__changed == __c_locale(0)) 162 { 163 freelocale((locale_t)__dup); 164 __throw_runtime_error(__N("locale::facet::_S_lc_ctype_c_locale " 165 "newlocale error")); 166 } 167 return __changed; 168 } 169 170 _GLIBCXX_END_NAMESPACE_VERSION 171 } // namespace 172 173 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) 174 { 175 _GLIBCXX_BEGIN_NAMESPACE_VERSION 176 177 const char* const category_names[6 + _GLIBCXX_NUM_CATEGORIES] = 178 { 179 "LC_CTYPE", 180 "LC_NUMERIC", 181 "LC_TIME", 182 "LC_COLLATE", 183 "LC_MONETARY", 184 "LC_MESSAGES" 185 }; 186 187 _GLIBCXX_END_NAMESPACE_VERSION 188 } // namespace 189 190 namespace std _GLIBCXX_VISIBILITY(default) 191 { 192 _GLIBCXX_BEGIN_NAMESPACE_VERSION 193 194 const char* const* const locale::_S_categories = __gnu_cxx::category_names; 195 196 #ifdef __NetBSD__ 197 int __convert_from_v(const __c_locale & __cloc,char * __out,const int __size,const char * __fmt,...)198 __convert_from_v(const __c_locale& __cloc, char* __out, 199 const int __size __attribute__ ((__unused__)), 200 const char* __fmt, ...) 201 { 202 __builtin_va_list __args; 203 __builtin_va_start(__args, __fmt); 204 205 const int __ret = vsnprintf_l(__out, __size, (struct _locale *)__cloc, 206 __fmt, __args); 207 208 __builtin_va_end(__args); 209 210 return __ret; 211 } 212 #endif 213 214 _GLIBCXX_END_NAMESPACE_VERSION 215 } // namespace 216 217 // XXX GLIBCXX_ABI Deprecated 218 #ifdef _GLIBCXX_LONG_DOUBLE_COMPAT 219 #define _GLIBCXX_LDBL_COMPAT(dbl, ldbl) \ 220 extern "C" void ldbl (void) __attribute__ ((alias (#dbl))) 221 _GLIBCXX_LDBL_COMPAT(_ZSt14__convert_to_vIdEvPKcRT_RSt12_Ios_IostateRKP15__locale_struct, _ZSt14__convert_to_vIeEvPKcRT_RSt12_Ios_IostateRKP15__locale_struct); 222 #endif // _GLIBCXX_LONG_DOUBLE_COMPAT 223