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[/] [or1200_soc/] [trunk/] [sw/] [Meansoffreedom/] [C_plus_hack/] [c++locale.cc] - Rev 26
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// Wrapper for underlying C-language localization -*- C++ -*- // Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 2, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING. If not, write to the Free // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, // USA. // As a special exception, you may use this file as part of a free software // library without restriction. Specifically, if other files instantiate // templates or use macros or inline functions from this file, or you compile // this file and link it with other files to produce an executable, this // file does not by itself cause the resulting executable to be covered by // the GNU General Public License. This exception does not however // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. // // ISO C++ 14882: 22.8 Standard locale categories. // // Written by Benjamin Kosnik <bkoz@redhat.com> #include <cerrno> // For errno #include <cmath> // For isinf, finite, finitef, fabs #include <cstdlib> // For strof, strtold #include <locale> #ifdef _GLIBCXX_HAVE_IEEEFP_H #include <ieeefp.h> #endif namespace std { // Specializations for all types used in num_get. template<> void __convert_to_v(const char* __s, float& __v, ios_base::iostate& __err, const __c_locale&) { if (!(__err & ios_base::failbit)) { // Assumes __s formatted for "C" locale. char* __old = strdup(setlocale(LC_ALL, NULL)); setlocale(LC_ALL, "C"); char* __sanity; errno = 0; // #if defined(_GLIBCXX_HAVE_STRTOF) #if 0 float __f = strtof(__s, &__sanity); #else double __d = strtod(__s, &__sanity); float __f = static_cast<float>(__d); // #ifdef _GLIBCXX_HAVE_FINITEF #if 0 if (!finitef (__f)) errno = ERANGE; // #elif defined (_GLIBCXX_HAVE_FINITE) #elif 0 if (!finite (static_cast<double> (__f))) errno = ERANGE; // #elif defined (_GLIBCXX_HAVE_ISINF) #elif 0 if (isinf (static_cast<double> (__f))) errno = ERANGE; #else if (fabs(__d) > numeric_limits<float>::max()) errno = ERANGE; #endif #endif if (__sanity != __s && errno != ERANGE) __v = __f; else __err |= ios_base::failbit; setlocale(LC_ALL, __old); free(__old); } } template<> void __convert_to_v(const char* __s, double& __v, ios_base::iostate& __err, const __c_locale&) { if (!(__err & ios_base::failbit)) { // Assumes __s formatted for "C" locale. char* __old = strdup(setlocale(LC_ALL, NULL)); setlocale(LC_ALL, "C"); char* __sanity; errno = 0; double __d = strtod(__s, &__sanity); if (__sanity != __s && errno != ERANGE) __v = __d; else __err |= ios_base::failbit; setlocale(LC_ALL, __old); free(__old); } } template<> void __convert_to_v(const char* __s, long double& __v, ios_base::iostate& __err, const __c_locale&) { if (!(__err & ios_base::failbit)) { // Assumes __s formatted for "C" locale. char* __old = strdup(setlocale(LC_ALL, NULL)); setlocale(LC_ALL, "C"); #if defined(_GLIBCXX_HAVE_STRTOLD) char* __sanity; errno = 0; long double __ld = strtold(__s, &__sanity); if (__sanity != __s && errno != ERANGE) __v = __ld; #else typedef char_traits<char>::int_type int_type; long double __ld; errno = 0; int __p = sscanf(__s, "%Lf", &__ld); if (errno == ERANGE) __p = 0; #ifdef _GLIBCXX_HAVE_FINITEL if ((__p == 1) && !finitel (__ld)) __p = 0; #endif if (__p && static_cast<int_type>(__p) != char_traits<char>::eof()) __v = __ld; #endif else __err |= ios_base::failbit; setlocale(LC_ALL, __old); free(__old); } } void locale::facet::_S_create_c_locale(__c_locale& __cloc, const char* __s, __c_locale) { // Currently, the generic model only supports the "C" locale. // See http://gcc.gnu.org/ml/libstdc++/2003-02/msg00345.html __cloc = NULL; if (strcmp(__s, "C")) __throw_runtime_error(__N("locale::facet::_S_create_c_locale " "name not valid")); } void locale::facet::_S_destroy_c_locale(__c_locale& __cloc) { __cloc = NULL; } __c_locale locale::facet::_S_clone_c_locale(__c_locale&) { return __c_locale(); } } // namespace std namespace __gnu_cxx { const char* const category_names[6 + _GLIBCXX_NUM_CATEGORIES] = { "LC_CTYPE", "LC_NUMERIC", "LC_TIME", "LC_COLLATE", "LC_MONETARY", "LC_MESSAGES" }; } namespace std { const char* const* const locale::_S_categories = __gnu_cxx::category_names; } // namespace std