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Diffstat (limited to 'libstdc++/include/bits/stl_relops.h')
| -rw-r--r-- | libstdc++/include/bits/stl_relops.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/libstdc++/include/bits/stl_relops.h b/libstdc++/include/bits/stl_relops.h new file mode 100644 index 0000000..11fc30d --- /dev/null +++ b/libstdc++/include/bits/stl_relops.h @@ -0,0 +1,138 @@ +// 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 */ |
