134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
// std::rel_ops implementation -*- C++ -*-
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// Copyright (C) 2001-2020 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, 2009 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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// <http://www.gnu.org/licenses/>.
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/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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/** @file bits/stl_relops.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{utility}
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*
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* Inclusion of this file has been removed from
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* all of the other STL headers for safety reasons, except std_utility.h.
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* For more information, see the thread of about twenty messages starting
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* with http://gcc.gnu.org/ml/libstdc++/2001-01/msg00223.html, or
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* http://gcc.gnu.org/onlinedocs/libstdc++/faq.html#faq.ambiguous_overloads
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*
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* Short summary: the rel_ops operators should be avoided for the present.
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*/
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#ifndef _STL_RELOPS_H
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#define _STL_RELOPS_H 1
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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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namespace rel_ops
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{
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/** @namespace std::rel_ops
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* @brief The generated relational operators are sequestered here.
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*/
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/**
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* @brief Defines @c != for arbitrary types, in terms of @c ==.
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* @param __x A thing.
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* @param __y Another thing.
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* @return __x != __y
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*
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* This function uses @c == to determine its result.
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*/
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template <class _Tp>
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inline bool
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operator!=(const _Tp& __x, const _Tp& __y)
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{ return !(__x == __y); }
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/**
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* @brief Defines @c > for arbitrary types, in terms of @c <.
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* @param __x A thing.
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* @param __y Another thing.
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* @return __x > __y
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*
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* This function uses @c < to determine its result.
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*/
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template <class _Tp>
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inline bool
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operator>(const _Tp& __x, const _Tp& __y)
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{ return __y < __x; }
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/**
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* @brief Defines @c <= for arbitrary types, in terms of @c <.
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* @param __x A thing.
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* @param __y Another thing.
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* @return __x <= __y
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*
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* This function uses @c < to determine its result.
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*/
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template <class _Tp>
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inline bool
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operator<=(const _Tp& __x, const _Tp& __y)
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{ return !(__y < __x); }
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/**
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* @brief Defines @c >= for arbitrary types, in terms of @c <.
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* @param __x A thing.
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* @param __y Another thing.
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* @return __x >= __y
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*
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* This function uses @c < to determine its result.
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*/
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template <class _Tp>
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inline bool
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operator>=(const _Tp& __x, const _Tp& __y)
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{ return !(__x < __y); }
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} // namespace rel_ops
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace std
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#endif /* _STL_RELOPS_H */
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