// std::collate implementation details, generic version -*- C++ -*- // Copyright (C) 2001, 2002, 2005 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // 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: 22.2.4.1.2 collate virtual functions // // Written by Benjamin Kosnik <bkoz@redhat.com> #include <locale> _GLIBCXX_BEGIN_NAMESPACE(std) // These are basically extensions to char_traits, and perhaps should // be put there instead of here. template<> int collate<char>::_M_compare(const char* __one, const char* __two) const { int __cmp = strcoll(__one, __two); return (__cmp >> (8 * sizeof (int) - 2)) | (__cmp != 0); } template<> size_t collate<char>::_M_transform(char* __to, const char* __from, size_t __n) const { return strxfrm(__to, __from, __n); } #ifdef _GLIBCXX_USE_WCHAR_T template<> int collate<wchar_t>::_M_compare(const wchar_t* __one, const wchar_t* __two) const { int __cmp = wcscoll(__one, __two); return (__cmp >> (8 * sizeof (int) - 2)) | (__cmp != 0); } template<> size_t collate<wchar_t>::_M_transform(wchar_t* __to, const wchar_t* __from, size_t __n) const { return wcsxfrm(__to, __from, __n); } #endif _GLIBCXX_END_NAMESPACE