Where Online Learning is simpler!

The C and C++ Include Header Files

/usr/include/c++/11/ext/pb_ds/detail/splay_tree_/node.hpp


$ cat -n /usr/include/c++/11/ext/pb_ds/detail/splay_tree_/node.hpp

     1	// -*- C++ -*-
     2	
     3	// Copyright (C) 2005-2021 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 terms
     7	// of the GNU General Public License as published by the Free Software
     8	// Foundation; either version 3, or (at your option) any later
     9	// version.
    10	
    11	// This library is distributed in the hope that it will be useful, but
    12	// WITHOUT ANY WARRANTY; without even the implied warranty of
    13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    14	// 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	// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
    26	
    27	// Permission to use, copy, modify, sell, and distribute this software
    28	// is hereby granted without fee, provided that the above copyright
    29	// notice appears in all copies, and that both that copyright notice
    30	// and this permission notice appear in supporting documentation. None
    31	// of the above authors, nor IBM Haifa Research Laboratories, make any
    32	// representation about the suitability of this software for any
    33	// purpose. It is provided "as is" without express or implied
    34	// warranty.
    35	
    36	/**
    37	 * @file splay_tree_/node.hpp
    38	 * Contains an implementation struct for splay_tree_'s node.
    39	 */
    40	
    41	#ifndef PB_DS_SPLAY_TREE_NODE_HPP
    42	#define PB_DS_SPLAY_TREE_NODE_HPP
    43	
    44	namespace __gnu_pbds
    45	{
    46	  namespace detail
    47	  {
    48	    /// Node for splay tree.
    49	    template<typename Value_Type, class Metadata, typename _Alloc>
    50	    struct splay_tree_node_
    51	    {
    52	    public:
    53	      typedef Value_Type value_type;
    54	      typedef Metadata metadata_type;
    55	
    56	      typedef typename rebind_traits<_Alloc, splay_tree_node_>::pointer
    57		node_pointer;
    58	
    59	      typedef typename rebind_traits<_Alloc, metadata_type>::reference
    60		metadata_reference;
    61	
    62	      typedef typename rebind_traits<_Alloc, metadata_type>::const_reference
    63		metadata_const_reference;
    64	
    65	#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
    66	      void
    67	      trace() const
    68	      { std::cout << PB_DS_V2F(m_value) << "(" << m_metadata << ")"; }
    69	#endif
    70	
    71	      inline bool
    72	      special() const
    73	      { return m_special; }
    74	
    75	      inline metadata_const_reference
    76	      get_metadata() const
    77	      { return m_metadata; }
    78	
    79	      inline metadata_reference
    80	      get_metadata()
    81	      { return m_metadata; }
    82	
    83	      value_type m_value;
    84	      bool m_special;
    85	      node_pointer m_p_left;
    86	      node_pointer m_p_right;
    87	      node_pointer m_p_parent;
    88	      metadata_type m_metadata;
    89	    };
    90	
    91	    template<typename Value_Type, typename _Alloc>
    92	    struct splay_tree_node_<Value_Type, null_type, _Alloc>
    93	    {
    94	    public:
    95	      typedef Value_Type value_type;
    96	      typedef null_type metadata_type;
    97	
    98	      typedef typename rebind_traits<_Alloc, splay_tree_node_>::pointer
    99		node_pointer;
   100	
   101	      inline bool
   102	      special() const
   103	      { return m_special; }
   104	
   105	#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
   106	      void
   107	      trace() const
   108	      { std::cout << PB_DS_V2F(m_value); }
   109	#endif 
   110	
   111	      node_pointer m_p_left;
   112	      node_pointer m_p_right;
   113	      node_pointer m_p_parent;
   114	      value_type m_value;
   115	      bool m_special;
   116	    };
   117	  } // namespace detail
   118	} // namespace __gnu_pbds
   119	
   120	#endif