1 // Wrapper for underlying C-language localization -*- C++ -*-
3 // Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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 2, or (at your option)
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
31 // ISO C++ 14882: 22.8 Standard locale categories.
34 // Written by Benjamin Kosnik <bkoz@redhat.com>
38 #ifdef _GLIBCXX_HAVE_IEEEFP_H
44 // Specializations for all types used in num_get.
47 __convert_to_v(const char* __s, long& __v, ios_base::iostate& __err,
48 const __c_locale&, int __base)
50 if (!(__err & ios_base::failbit))
54 long __l = strtol(__s, &__sanity, __base);
55 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
58 __err |= ios_base::failbit;
64 __convert_to_v(const char* __s, unsigned long& __v,
65 ios_base::iostate& __err, const __c_locale&, int __base)
67 if (!(__err & ios_base::failbit))
71 unsigned long __ul = strtoul(__s, &__sanity, __base);
72 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
75 __err |= ios_base::failbit;
79 #ifdef _GLIBCXX_USE_LONG_LONG
82 __convert_to_v(const char* __s, long long& __v, ios_base::iostate& __err,
83 const __c_locale&, int __base)
85 if (!(__err & ios_base::failbit))
89 long long __ll = strtoll(__s, &__sanity, __base);
90 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
93 __err |= ios_base::failbit;
99 __convert_to_v(const char* __s, unsigned long long& __v,
100 ios_base::iostate& __err, const __c_locale&, int __base)
102 if (!(__err & ios_base::failbit))
106 unsigned long long __ull = strtoull(__s, &__sanity, __base);
107 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
110 __err |= ios_base::failbit;
117 __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err,
118 const __c_locale&, int)
120 if (!(__err & ios_base::failbit))
122 // Assumes __s formatted for "C" locale.
123 char* __old = strdup(setlocale(LC_ALL, NULL));
124 setlocale(LC_ALL, "C");
127 #if defined(_GLIBCXX_USE_C99)
128 float __f = strtof(__s, &__sanity);
130 double __d = strtod(__s, &__sanity);
131 float __f = static_cast<float>(__d);
132 #ifdef _GLIBCXX_HAVE_FINITEF
135 #elif defined (_GLIBCXX_HAVE_FINITE)
136 if (!finite (static_cast<double> (__f)))
138 #elif defined (_GLIBCXX_HAVE_ISINF)
139 if (isinf (static_cast<double> (__f)))
142 if (fabs(__d) > numeric_limits<float>::max())
146 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
149 __err |= ios_base::failbit;
150 setlocale(LC_ALL, __old);
157 __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err,
158 const __c_locale&, int)
160 if (!(__err & ios_base::failbit))
162 // Assumes __s formatted for "C" locale.
163 char* __old = strdup(setlocale(LC_ALL, NULL));
164 setlocale(LC_ALL, "C");
167 double __d = strtod(__s, &__sanity);
168 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
171 __err |= ios_base::failbit;
172 setlocale(LC_ALL, __old);
179 __convert_to_v(const char* __s, long double& __v,
180 ios_base::iostate& __err, const __c_locale&, int)
182 if (!(__err & ios_base::failbit))
184 // Assumes __s formatted for "C" locale.
185 char* __old = strdup(setlocale(LC_ALL, NULL));
186 setlocale(LC_ALL, "C");
187 #if defined(_GLIBCXX_USE_C99)
190 long double __ld = strtold(__s, &__sanity);
191 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
194 typedef char_traits<char>::int_type int_type;
197 int __p = sscanf(__s, "%Lf", &__ld);
200 #ifdef _GLIBCXX_HAVE_FINITEL
201 if ((__p == 1) && !finitel (__ld))
204 if (__p && static_cast<int_type>(__p) != char_traits<char>::eof())
208 __err |= ios_base::failbit;
209 setlocale(LC_ALL, __old);
215 locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s,
218 // Currently, the generic model only supports the "C" locale.
219 // See http://gcc.gnu.org/ml/libstdc++/2003-02/msg00345.html
221 if (strcmp(__s, "C"))
222 __throw_runtime_error("locale::facet::_S_create_c_locale "
227 locale::facet::_S_destroy_c_locale(__c_locale& __cloc)
231 locale::facet::_S_clone_c_locale(__c_locale&)
232 { return __c_locale(); }
237 const char* category_names[6 + _GLIBCXX_NUM_CATEGORIES] =
250 const char** locale::_S_categories = __gnu_cxx::category_names;