139 lines
4.7 KiB
C++
139 lines
4.7 KiB
C++
// std::rel_ops implementation -*- C++ -*-
|
|
|
|
// Copyright (C) 2001, 2002, 2004, 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.
|
|
|
|
/*
|
|
*
|
|
* Copyright (c) 1994
|
|
* Hewlett-Packard Company
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Hewlett-Packard Company makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
* Copyright (c) 1996,1997
|
|
* Silicon Graphics
|
|
*
|
|
* Permission to use, copy, modify, distribute and sell this software
|
|
* and its documentation for any purpose is hereby granted without fee,
|
|
* provided that the above copyright notice appear in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation. Silicon Graphics makes no
|
|
* representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
*/
|
|
|
|
/** @file stl_relops.h
|
|
* This is an internal header file, included by other library headers.
|
|
* You should not attempt to use it directly.
|
|
*
|
|
* @if maint
|
|
* Inclusion of this file has been removed from
|
|
* all of the other STL headers for safety reasons, except std_utility.h.
|
|
* For more information, see the thread of about twenty messages starting
|
|
* with http://gcc.gnu.org/ml/libstdc++/2001-01/msg00223.html , or the
|
|
* FAQ at http://gcc.gnu.org/onlinedocs/libstdc++/faq/index.html#4_4 .
|
|
*
|
|
* Short summary: the rel_ops operators should be avoided for the present.
|
|
* @endif
|
|
*/
|
|
|
|
#ifndef _STL_RELOPS_H
|
|
#define _STL_RELOPS_H 1
|
|
|
|
_GLIBCXX_BEGIN_NAMESPACE(std)
|
|
|
|
namespace rel_ops
|
|
{
|
|
/** @namespace std::rel_ops
|
|
* @brief The generated relational operators are sequestered here.
|
|
*/
|
|
|
|
/**
|
|
* @brief Defines @c != for arbitrary types, in terms of @c ==.
|
|
* @param x A thing.
|
|
* @param y Another thing.
|
|
* @return x != y
|
|
*
|
|
* This function uses @c == to determine its result.
|
|
*/
|
|
template <class _Tp>
|
|
inline bool
|
|
operator!=(const _Tp& __x, const _Tp& __y)
|
|
{ return !(__x == __y); }
|
|
|
|
/**
|
|
* @brief Defines @c > for arbitrary types, in terms of @c <.
|
|
* @param x A thing.
|
|
* @param y Another thing.
|
|
* @return x > y
|
|
*
|
|
* This function uses @c < to determine its result.
|
|
*/
|
|
template <class _Tp>
|
|
inline bool
|
|
operator>(const _Tp& __x, const _Tp& __y)
|
|
{ return __y < __x; }
|
|
|
|
/**
|
|
* @brief Defines @c <= for arbitrary types, in terms of @c <.
|
|
* @param x A thing.
|
|
* @param y Another thing.
|
|
* @return x <= y
|
|
*
|
|
* This function uses @c < to determine its result.
|
|
*/
|
|
template <class _Tp>
|
|
inline bool
|
|
operator<=(const _Tp& __x, const _Tp& __y)
|
|
{ return !(__y < __x); }
|
|
|
|
/**
|
|
* @brief Defines @c >= for arbitrary types, in terms of @c <.
|
|
* @param x A thing.
|
|
* @param y Another thing.
|
|
* @return x >= y
|
|
*
|
|
* This function uses @c < to determine its result.
|
|
*/
|
|
template <class _Tp>
|
|
inline bool
|
|
operator>=(const _Tp& __x, const _Tp& __y)
|
|
{ return !(__x < __y); }
|
|
|
|
} // namespace rel_ops
|
|
|
|
_GLIBCXX_END_NAMESPACE
|
|
|
|
#endif /* _STL_RELOPS_H */
|