1 // Wrapper for underlying C-language localization -*- C++ -*-
3 // Copyright (C) 2001, 2002 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 _GLIBCPP_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 _GLIBCPP_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 const char* __old = setlocale(LC_ALL, "C");
126 #if defined(_GLIBCPP_USE_C99) || defined(_GLIBCPP_HAVE_STRTOF)
127 float __f = strtof(__s, &__sanity);
129 double __d = strtod(__s, &__sanity);
130 float __f = static_cast<float>(__d);
131 #ifdef _GLIBCPP_HAVE_FINITEF
134 #elif defined (_GLIBCPP_HAVE_FINITE)
135 if (!finite (static_cast<double> (__f)))
137 #elif defined (_GLIBCPP_HAVE_ISINF)
138 if (isinf (static_cast<double> (__f)))
141 if (fabs(__d) > numeric_limits<float>::max())
145 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
148 __err |= ios_base::failbit;
149 setlocale(LC_ALL, __old);
155 __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err,
156 const __c_locale&, int)
158 if (!(__err & ios_base::failbit))
160 // Assumes __s formatted for "C" locale.
161 const char* __old = setlocale(LC_ALL, "C");
164 double __d = strtod(__s, &__sanity);
165 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
168 __err |= ios_base::failbit;
169 setlocale(LC_ALL, __old);
175 __convert_to_v(const char* __s, long double& __v,
176 ios_base::iostate& __err, const __c_locale&, int)
178 if (!(__err & ios_base::failbit))
180 // Assumes __s formatted for "C" locale.
181 const char* __old = setlocale(LC_ALL, "C");
182 #if defined(_GLIBCPP_USE_C99) || defined(_GLIBCPP_HAVE_STRTOLD)
185 long double __ld = strtold(__s, &__sanity);
186 if (__sanity != __s && *__sanity == '\0' && errno != ERANGE)
189 typedef char_traits<char>::int_type int_type;
192 int __p = sscanf(__s, "%Lf", &__ld);
195 #ifdef _GLIBCPP_HAVE_FINITEL
196 if ((__p == 1) && !finitel (__ld))
199 if (__p && static_cast<int_type>(__p) != char_traits<char>::eof())
203 __err |= ios_base::failbit;
204 setlocale(LC_ALL, __old);
209 locale::facet::_S_create_c_locale(__c_locale& __cloc, const char*)
213 locale::facet::_S_destroy_c_locale(__c_locale&)
217 locale::facet::_S_clone_c_locale(__c_locale&)
218 { return __c_locale(); }