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      1 // rb_tree extension -*- C++ -*-
      2 
      3 // Copyright (C) 2002-2024 Free Software Foundation, Inc.
      4 //
      5 // This file is part of the GNU ISO C++ Library.  This library is free
      6 // software; you can redistribute it and/or modify it under the
      7 // terms of the GNU General Public License as published by the
      8 // Free Software Foundation; either version 3, or (at your option)
      9 // any later version.
     10 
     11 // This library is distributed in the hope that it will be useful,
     12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 // GNU General Public License for more details.
     15 
     16 // Under Section 7 of GPL version 3, you are granted additional
     17 // permissions described in the GCC Runtime Library Exception, version
     18 // 3.1, as published by the Free Software Foundation.
     19 
     20 // You should have received a copy of the GNU General Public License and
     21 // a copy of the GCC Runtime Library Exception along with this program;
     22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     23 // <http://www.gnu.org/licenses/>.
     24 
     25 /*
     26  *
     27  * Copyright (c) 1994
     28  * Hewlett-Packard Company
     29  *
     30  * Permission to use, copy, modify, distribute and sell this software
     31  * and its documentation for any purpose is hereby granted without fee,
     32  * provided that the above copyright notice appear in all copies and
     33  * that both that copyright notice and this permission notice appear
     34  * in supporting documentation.  Hewlett-Packard Company makes no
     35  * representations about the suitability of this software for any
     36  * purpose.  It is provided "as is" without express or implied warranty.
     37  *
     38  *
     39  * Copyright (c) 1996
     40  * Silicon Graphics Computer Systems, Inc.
     41  *
     42  * Permission to use, copy, modify, distribute and sell this software
     43  * and its documentation for any purpose is hereby granted without fee,
     44  * provided that the above copyright notice appear in all copies and
     45  * that both that copyright notice and this permission notice appear
     46  * in supporting documentation.  Silicon Graphics makes no
     47  * representations about the suitability of this software for any
     48  * purpose.  It is provided "as is" without express or implied warranty.
     49  */
     50 
     51 /** @file ext/rb_tree
     52  *  This file is a GNU extension to the Standard C++ Library (possibly
     53  *  containing extensions from the HP/SGI STL subset). 
     54  */
     55 
     56 #ifndef _RB_TREE
     57 #define _RB_TREE 1
     58 
     59 #pragma GCC system_header
     60 
     61 #include <bits/requires_hosted.h> // GNU extensions are currently omitted
     62 
     63 #include <bits/stl_tree.h>
     64 
     65 namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
     66 {
     67 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     68 
     69   // Class rb_tree is not part of the C++ standard.  It is provided for
     70   // compatibility with the HP STL.
     71 
     72   /**
     73    *  This is an SGI extension.
     74    *  @ingroup SGIextensions
     75    *  @doctodo
     76    */
     77   template <class _Key, class _Value, class _KeyOfValue, class _Compare,
     78 	    class _Alloc = std::allocator<_Value> >
     79     struct rb_tree
     80     : public std::_Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc>
     81     {
     82       typedef std::_Rb_tree<_Key, _Value, _KeyOfValue, _Compare, _Alloc> _Base;
     83       typedef typename _Base::allocator_type allocator_type;
     84 
     85       rb_tree(const _Compare& __comp = _Compare(),
     86 	      const allocator_type& __a = allocator_type())
     87       : _Base(__comp, __a) { }
     88 
     89       ~rb_tree() { }
     90     };
     91 
     92 _GLIBCXX_END_NAMESPACE_VERSION
     93 } // namespace
     94 
     95 #endif
     96