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// std::collate implementation details, generic version -*- C++ -*- |
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// Copyright (C) 2001-2015 Free Software Foundation, Inc. |
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// |
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// This file is part of the GNU ISO C++ Library. This library is free |
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// software; you can redistribute it and/or modify it under the |
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// terms of the GNU General Public License as published by the |
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// Free Software Foundation; either version 3, or (at your option) |
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// any later version. |
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// This library is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// Under Section 7 of GPL version 3, you are granted additional |
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// permissions described in the GCC Runtime Library Exception, version |
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// 3.1, as published by the Free Software Foundation. |
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// You should have received a copy of the GNU General Public License and |
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// a copy of the GCC Runtime Library Exception along with this program; |
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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// . |
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// |
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// ISO C++ 14882: 22.2.4.1.2 collate virtual functions |
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// |
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// Written by Benjamin Kosnik |
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#include |
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#include |
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namespace std _GLIBCXX_VISIBILITY(default) |
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{ |
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_GLIBCXX_BEGIN_NAMESPACE_VERSION |
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// These are basically extensions to char_traits, and perhaps should |
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// be put there instead of here. |
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template<> |
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int |
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collate::_M_compare(const char* __one, |
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const char* __two) const throw() |
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{ |
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int __cmp = strcoll(__one, __two); |
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return (__cmp >> (8 * sizeof (int) - 2)) | (__cmp != 0); |
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} |
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template<> |
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size_t |
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collate::_M_transform(char* __to, const char* __from, |
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size_t __n) const throw() |
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{ return strxfrm(__to, __from, __n); } |
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#ifdef _GLIBCXX_USE_WCHAR_T |
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template<> |
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int |
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collate::_M_compare(const wchar_t* __one, |
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const wchar_t* __two) const throw() |
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{ |
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int __cmp = wcscoll(__one, __two); |
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return (__cmp >> (8 * sizeof (int) - 2)) | (__cmp != 0); |
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} |
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template<> |
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size_t |
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collate::_M_transform(wchar_t* __to, const wchar_t* __from, |
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size_t __n) const throw() |
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{ return wcsxfrm(__to, __from, __n); } |
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#endif |
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_GLIBCXX_END_NAMESPACE_VERSION |
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} // namespace |