1 // localization implementation details, DragonFly version -*- C++ -*- 2 3 // Copyright (C) 2014-2018 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 32 #include <cstdlib> 33 #include <locale> 34 #include <stdexcept> 35 #include <limits> 36 #include <langinfo.h> 37 #include <xlocale.h> 38 39 namespace std _GLIBCXX_VISIBILITY(default) 40 { 41 _GLIBCXX_BEGIN_NAMESPACE_VERSION 42 43 template<> 44 void 45 __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err, 46 const __c_locale& __cloc) throw() 47 { 48 char* __sanity; 49 __v = strtof_l(__s, &__sanity, (locale_t)__cloc); 50 51 // _GLIBCXX_RESOLVE_LIB_DEFECTS 52 // 23. Num_get overflow result. 53 if (__sanity == __s || *__sanity != '\0') 54 { 55 __v = 0.0f; 56 __err = ios_base::failbit; 57 } 58 else if (__v == numeric_limits<float>::infinity()) 59 { 60 __v = numeric_limits<float>::max(); 61 __err = ios_base::failbit; 62 } 63 else if (__v == -numeric_limits<float>::infinity()) 64 { 65 __v = -numeric_limits<float>::max(); 66 __err = ios_base::failbit; 67 } 68 } 69 70 template<> 71 void 72 __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err, 73 const __c_locale& __cloc) throw() 74 { 75 char* __sanity; 76 __v = strtod_l(__s, &__sanity, (locale_t)__cloc); 77 78 // _GLIBCXX_RESOLVE_LIB_DEFECTS 79 // 23. Num_get overflow result. 80 if (__sanity == __s || *__sanity != '\0') 81 { 82 __v = 0.0; 83 __err = ios_base::failbit; 84 } 85 else if (__v == numeric_limits<double>::infinity()) 86 { 87 __v = numeric_limits<double>::max(); 88 __err = ios_base::failbit; 89 } 90 else if (__v == -numeric_limits<double>::infinity()) 91 { 92 __v = -numeric_limits<double>::max(); 93 __err = ios_base::failbit; 94 } 95 } 96 97 template<> 98 void 99 __convert_to_v(const char* __s, long double& __v, ios_base::iostate& __err, 100 const __c_locale& __cloc) throw() 101 { 102 char* __sanity; 103 __v = strtold_l(__s, &__sanity, (locale_t)__cloc); 104 105 // _GLIBCXX_RESOLVE_LIB_DEFECTS 106 // 23. Num_get overflow result. 107 if (__sanity == __s || *__sanity != '\0') 108 { 109 __v = 0.0l; 110 __err = ios_base::failbit; 111 } 112 else if (__v == numeric_limits<long double>::infinity()) 113 { 114 __v = numeric_limits<long double>::max(); 115 __err = ios_base::failbit; 116 } 117 else if (__v == -numeric_limits<long double>::infinity()) 118 { 119 __v = -numeric_limits<long double>::max(); 120 __err = ios_base::failbit; 121 } 122 } 123 124 void 125 locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s, 126 __c_locale __old) 127 { 128 __cloc = (__c_locale)newlocale(LC_ALL_MASK, __s, (locale_t)__old); 129 if (!__cloc) 130 { 131 // This named locale is not supported by the underlying OS. 132 __throw_runtime_error(__N("locale::facet::_S_create_c_locale " 133 "name not valid")); 134 } 135 } 136 137 void 138 locale::facet::_S_destroy_c_locale(__c_locale& __cloc) 139 { 140 if (__cloc && _S_get_c_locale() != __cloc) 141 freelocale((locale_t)__cloc); 142 } 143 144 __c_locale 145 locale::facet::_S_clone_c_locale(__c_locale& __cloc) throw() 146 { return (__c_locale)duplocale((locale_t)__cloc); } 147 148 __c_locale 149 locale::facet::_S_lc_ctype_c_locale(__c_locale __cloc, const char* __s) 150 { 151 __c_locale __dup = (__c_locale)duplocale((locale_t)__cloc); 152 if (__dup == __c_locale(0)) 153 __throw_runtime_error(__N("locale::facet::_S_lc_ctype_c_locale " 154 "duplocale error")); 155 __c_locale __changed = (__c_locale)newlocale(LC_CTYPE_MASK, __s, 156 (locale_t)__dup); 157 if (__changed == __c_locale(0)) 158 { 159 freelocale((locale_t)__dup); 160 __throw_runtime_error(__N("locale::facet::_S_lc_ctype_c_locale " 161 "newlocale error")); 162 } 163 return __changed; 164 } 165 166 _GLIBCXX_END_NAMESPACE_VERSION 167 } // namespace 168 169 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) 170 { 171 _GLIBCXX_BEGIN_NAMESPACE_VERSION 172 173 const char* const category_names[6 + _GLIBCXX_NUM_CATEGORIES] = 174 { 175 "LC_CTYPE", 176 "LC_NUMERIC", 177 "LC_TIME", 178 "LC_COLLATE", 179 "LC_MONETARY", 180 "LC_MESSAGES" 181 }; 182 183 _GLIBCXX_END_NAMESPACE_VERSION 184 } // namespace 185 186 namespace std _GLIBCXX_VISIBILITY(default) 187 { 188 _GLIBCXX_BEGIN_NAMESPACE_VERSION 189 190 const char* const* const locale::_S_categories = __gnu_cxx::category_names; 191 192 _GLIBCXX_END_NAMESPACE_VERSION 193 } // namespace 194 195 // XXX GLIBCXX_ABI Deprecated 196 #ifdef _GLIBCXX_LONG_DOUBLE_COMPAT 197 #define _GLIBCXX_LDBL_COMPAT(dbl, ldbl) \ 198 extern "C" void ldbl (void) __attribute__ ((alias (#dbl))) 199 _GLIBCXX_LDBL_COMPAT(_ZSt14__convert_to_vIdEvPKcRT_RSt12_Ios_IostateRKP15__locale_struct, _ZSt14__convert_to_vIeEvPKcRT_RSt12_Ios_IostateRKP15__locale_struct); 200 #endif // _GLIBCXX_LONG_DOUBLE_COMPAT 201