// std::collate implementation details, GNU version -*- C++ -*- // Copyright (C) 2001-2020 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 3, 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. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // . // // ISO C++ 14882: 22.2.4.1.2 collate virtual functions // // Written by Benjamin Kosnik #include #include namespace std _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION // These are basically extensions to char_traits, and perhaps should // be put there instead of here. template<> int collate::_M_compare(const char* __one, const char* __two) const throw() { int __cmp = __strcoll_l(__one, __two, _M_c_locale_collate); return (__cmp >> (8 * sizeof (int) - 2)) | (__cmp != 0); } template<> size_t collate::_M_transform(char* __to, const char* __from, size_t __n) const throw() { return __strxfrm_l(__to, __from, __n, _M_c_locale_collate); } #ifdef _GLIBCXX_USE_WCHAR_T template<> int collate::_M_compare(const wchar_t* __one, const wchar_t* __two) const throw() { int __cmp = __wcscoll_l(__one, __two, _M_c_locale_collate); return (__cmp >> (8 * sizeof (int) - 2)) | (__cmp != 0); } template<> size_t collate::_M_transform(wchar_t* __to, const wchar_t* __from, size_t __n) const throw() { return __wcsxfrm_l(__to, __from, __n, _M_c_locale_collate); } #endif _GLIBCXX_END_NAMESPACE_VERSION } // namespace