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>
36 #include <cerrno> // For errno
39 #ifdef _GLIBCXX_HAVE_IEEEFP_H
45 // Specializations for all types used in num_get.
48 __convert_to_v(const char* __s, long& __v, ios_base::iostate& __err,
49 const __c_locale&, int __base)
51 if (!(__err & ios_base::failbit))
55 long __l = strtol(__s, &__sanity, __base);
56 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
59 __err |= ios_base::failbit;
65 __convert_to_v(const char* __s, unsigned long& __v,
66 ios_base::iostate& __err, const __c_locale&, int __base)
68 if (!(__err & ios_base::failbit))
72 unsigned long __ul = strtoul(__s, &__sanity, __base);
73 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
76 __err |= ios_base::failbit;
80 #ifdef _GLIBCXX_USE_LONG_LONG
83 __convert_to_v(const char* __s, long long& __v, ios_base::iostate& __err,
84 const __c_locale&, int __base)
86 if (!(__err & ios_base::failbit))
90 long long __ll = strtoll(__s, &__sanity, __base);
91 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
94 __err |= ios_base::failbit;
100 __convert_to_v(const char* __s, unsigned long long& __v,
101 ios_base::iostate& __err, const __c_locale&, int __base)
103 if (!(__err & ios_base::failbit))
107 unsigned long long __ull = strtoull(__s, &__sanity, __base);
108 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
111 __err |= ios_base::failbit;
118 __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err,
119 const __c_locale&, int)
121 if (!(__err & ios_base::failbit))
123 // Assumes __s formatted for "C" locale.
124 char* __old = strdup(setlocale(LC_ALL, NULL));
125 setlocale(LC_ALL, "C");
128 #if defined(_GLIBCXX_USE_C99)
129 float __f = strtof(__s, &__sanity);
131 double __d = strtod(__s, &__sanity);
132 float __f = static_cast<float>(__d);
133 #ifdef _GLIBCXX_HAVE_FINITEF
136 #elif defined (_GLIBCXX_HAVE_FINITE)
137 if (!finite (static_cast<double> (__f)))
139 #elif defined (_GLIBCXX_HAVE_ISINF)
140 if (isinf (static_cast<double> (__f)))
143 if (fabs(__d) > numeric_limits<float>::max())
147 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
150 __err |= ios_base::failbit;
151 setlocale(LC_ALL, __old);
158 __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err,
159 const __c_locale&, int)
161 if (!(__err & ios_base::failbit))
163 // Assumes __s formatted for "C" locale.
164 char* __old = strdup(setlocale(LC_ALL, NULL));
165 setlocale(LC_ALL, "C");
168 double __d = strtod(__s, &__sanity);
169 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
172 __err |= ios_base::failbit;
173 setlocale(LC_ALL, __old);
180 __convert_to_v(const char* __s, long double& __v,
181 ios_base::iostate& __err, const __c_locale&, int)
183 if (!(__err & ios_base::failbit))
185 // Assumes __s formatted for "C" locale.
186 char* __old = strdup(setlocale(LC_ALL, NULL));
187 setlocale(LC_ALL, "C");
188 #if defined(_GLIBCXX_USE_C99)
191 long double __ld = strtold(__s, &__sanity);
192 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
195 typedef char_traits<char>::int_type int_type;
198 int __p = sscanf(__s, "%Lf", &__ld);
201 #ifdef _GLIBCXX_HAVE_FINITEL
202 if ((__p == 1) && !finitel (__ld))
205 if (__p && static_cast<int_type>(__p) != char_traits<char>::eof())
209 __err |= ios_base::failbit;
210 setlocale(LC_ALL, __old);
216 locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s,
219 // Currently, the generic model only supports the "C" locale.
220 // See http://gcc.gnu.org/ml/libstdc++/2003-02/msg00345.html
222 if (strcmp(__s, "C"))
223 __throw_runtime_error("locale::facet::_S_create_c_locale "
228 locale::facet::_S_destroy_c_locale(__c_locale& __cloc)
232 locale::facet::_S_clone_c_locale(__c_locale&)
233 { return __c_locale(); }
238 const char* const category_names[6 + _GLIBCXX_NUM_CATEGORIES] =
251 const char* const* const locale::_S_categories = __gnu_cxx::category_names;