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 #ifndef __NetBSD__ 38 #include <xlocale.h> 39 #endif 40 41 namespace std _GLIBCXX_VISIBILITY(default) 42 { 43 _GLIBCXX_BEGIN_NAMESPACE_VERSION 44 45 template<> 46 void 47 __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err, 48 const __c_locale& __cloc) throw() 49 { 50 char* __sanity; 51 __v = strtof_l(__s, &__sanity, (locale_t)__cloc); 52 53 // _GLIBCXX_RESOLVE_LIB_DEFECTS 54 // 23. Num_get overflow result. 55 if (__sanity == __s || *__sanity != '\0') 56 { 57 __v = 0.0f; 58 __err = ios_base::failbit; 59 } 60 else if (__v == numeric_limits<float>::infinity()) 61 { 62 __v = numeric_limits<float>::max(); 63 __err = ios_base::failbit; 64 } 65 else if (__v == -numeric_limits<float>::infinity()) 66 { 67 __v = -numeric_limits<float>::max(); 68 __err = ios_base::failbit; 69 } 70 } 71 72 template<> 73 void 74 __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err, 75 const __c_locale& __cloc) throw() 76 { 77 char* __sanity; 78 __v = strtod_l(__s, &__sanity, (locale_t)__cloc); 79 80 // _GLIBCXX_RESOLVE_LIB_DEFECTS 81 // 23. Num_get overflow result. 82 if (__sanity == __s || *__sanity != '\0') 83 { 84 __v = 0.0; 85 __err = ios_base::failbit; 86 } 87 else if (__v == numeric_limits<double>::infinity()) 88 { 89 __v = numeric_limits<double>::max(); 90 __err = ios_base::failbit; 91 } 92 else if (__v == -numeric_limits<double>::infinity()) 93 { 94 __v = -numeric_limits<double>::max(); 95 __err = ios_base::failbit; 96 } 97 } 98 99 template<> 100 void 101 __convert_to_v(const char* __s, long double& __v, ios_base::iostate& __err, 102 const __c_locale& __cloc) throw() 103 { 104 char* __sanity; 105 __v = strtold_l(__s, &__sanity, (locale_t)__cloc); 106 107 // _GLIBCXX_RESOLVE_LIB_DEFECTS 108 // 23. Num_get overflow result. 109 if (__sanity == __s || *__sanity != '\0') 110 { 111 __v = 0.0l; 112 __err = ios_base::failbit; 113 } 114 else if (__v == numeric_limits<long double>::infinity()) 115 { 116 __v = numeric_limits<long double>::max(); 117 __err = ios_base::failbit; 118 } 119 else if (__v == -numeric_limits<long double>::infinity()) 120 { 121 __v = -numeric_limits<long double>::max(); 122 __err = ios_base::failbit; 123 } 124 } 125 126 void 127 locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s, 128 __c_locale __old) 129 { 130 __cloc = (__c_locale)newlocale(LC_ALL_MASK, __s, (locale_t)__old); 131 if (!__cloc) 132 { 133 // This named locale is not supported by the underlying OS. 134 __throw_runtime_error(__N("locale::facet::_S_create_c_locale " 135 "name not valid")); 136 } 137 } 138 139 void 140 locale::facet::_S_destroy_c_locale(__c_locale& __cloc) 141 { 142 if (__cloc && _S_get_c_locale() != __cloc) 143 freelocale((locale_t)__cloc); 144 } 145 146 __c_locale 147 locale::facet::_S_clone_c_locale(__c_locale& __cloc) throw() 148 { return (__c_locale)duplocale((locale_t)__cloc); } 149 150 __c_locale 151 locale::facet::_S_lc_ctype_c_locale(__c_locale __cloc, const char* __s) 152 { 153 __c_locale __dup = (__c_locale)duplocale((locale_t)__cloc); 154 if (__dup == __c_locale(0)) 155 __throw_runtime_error(__N("locale::facet::_S_lc_ctype_c_locale " 156 "duplocale error")); 157 __c_locale __changed = (__c_locale)newlocale(LC_CTYPE_MASK, __s, 158 (locale_t)__dup); 159 if (__changed == __c_locale(0)) 160 { 161 freelocale((locale_t)__dup); 162 __throw_runtime_error(__N("locale::facet::_S_lc_ctype_c_locale " 163 "newlocale error")); 164 } 165 return __changed; 166 } 167 168 _GLIBCXX_END_NAMESPACE_VERSION 169 } // namespace 170 171 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) 172 { 173 _GLIBCXX_BEGIN_NAMESPACE_VERSION 174 175 const char* const category_names[6 + _GLIBCXX_NUM_CATEGORIES] = 176 { 177 "LC_CTYPE", 178 "LC_NUMERIC", 179 "LC_TIME", 180 "LC_COLLATE", 181 "LC_MONETARY", 182 "LC_MESSAGES" 183 }; 184 185 _GLIBCXX_END_NAMESPACE_VERSION 186 } // namespace 187 188 namespace std _GLIBCXX_VISIBILITY(default) 189 { 190 _GLIBCXX_BEGIN_NAMESPACE_VERSION 191 192 const char* const* const locale::_S_categories = __gnu_cxx::category_names; 193 194 _GLIBCXX_END_NAMESPACE_VERSION 195 } // namespace 196 197 // XXX GLIBCXX_ABI Deprecated 198 #ifdef _GLIBCXX_LONG_DOUBLE_COMPAT 199 #define _GLIBCXX_LDBL_COMPAT(dbl, ldbl) \ 200 extern "C" void ldbl (void) __attribute__ ((alias (#dbl))) 201 _GLIBCXX_LDBL_COMPAT(_ZSt14__convert_to_vIdEvPKcRT_RSt12_Ios_IostateRKP15__locale_struct, _ZSt14__convert_to_vIeEvPKcRT_RSt12_Ios_IostateRKP15__locale_struct); 202 #endif // _GLIBCXX_LONG_DOUBLE_COMPAT 203