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


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     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 left_child_next_sibling_heap_/node.hpp
    38	 * Contains an implementation struct for this type of heap's node.
    39	 */
    40	
    41	#ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
    42	#define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
    43	
    44	#include <ext/pb_ds/detail/types_traits.hpp>
    45	
    46	namespace __gnu_pbds
    47	{
    48	  namespace detail
    49	  {
    50	    /// Node.
    51	    template<typename _Value, typename _Metadata, typename _Alloc>
    52	    struct left_child_next_sibling_heap_node_
    53	    {
    54	    private:
    55	      typedef left_child_next_sibling_heap_node_<_Value, _Metadata, _Alloc> this_type;
    56	
    57	    public:
    58	      typedef _Value 				value_type;
    59	      typedef typename _Alloc::size_type 	size_type;
    60	      typedef _Metadata 			metadata_type;
    61	
    62	      typedef typename rebind_traits<_Alloc, this_type>::pointer node_pointer;
    63	
    64	      value_type 	m_value;
    65	      metadata_type 	m_metadata;
    66	      node_pointer 	m_p_l_child;
    67	      node_pointer 	m_p_next_sibling;
    68	      node_pointer 	m_p_prev_or_parent;
    69	    };
    70	
    71	    template<typename _Value, typename _Alloc>
    72	    struct left_child_next_sibling_heap_node_<_Value, null_type, _Alloc>
    73	    {
    74	    private:
    75	      typedef left_child_next_sibling_heap_node_<_Value, null_type, _Alloc> this_type;
    76	
    77	    public:
    78	      typedef _Value 				value_type;
    79	      typedef typename _Alloc::size_type 	size_type;
    80	
    81	      typedef typename rebind_traits<_Alloc, this_type>::pointer node_pointer;
    82	
    83	      value_type 	m_value;
    84	      node_pointer 	m_p_l_child;
    85	      node_pointer 	m_p_next_sibling;
    86	      node_pointer 	m_p_prev_or_parent;
    87	    };
    88	
    89	  } // namespace detail
    90	} // namespace __gnu_pbds
    91	
    92	#endif // #ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP