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/usr/include/c++/11/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.hpp


$ cat -n /usr/include/c++/11/ext/pb_ds/detail/thin_heap_/split_join_fn_imps.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 thin_heap_/split_join_fn_imps.hpp
    38	 * Contains an implementation for thin_heap_.
    39	 */
    40	
    41	#ifdef PB_DS_CLASS_C_DEC
    42	
    43	PB_DS_CLASS_T_DEC
    44	template<typename Pred>
    45	void
    46	PB_DS_CLASS_C_DEC::
    47	split(Pred pred, PB_DS_CLASS_C_DEC& other)
    48	{
    49	  PB_DS_ASSERT_VALID((*this))
    50	  PB_DS_ASSERT_VALID(other)
    51	
    52	  other.clear();
    53	  if (base_type::empty())
    54	    {
    55	      PB_DS_ASSERT_VALID((*this))
    56	      PB_DS_ASSERT_VALID(other)
    57	      return;
    58	    }
    59	
    60	  base_type::to_linked_list();
    61	  node_pointer p_out = base_type::prune(pred);
    62	
    63	  while (p_out != 0)
    64	    {
    65	      _GLIBCXX_DEBUG_ASSERT(base_type::m_size > 0);
    66	      --base_type::m_size;
    67	      ++other.m_size;
    68	      node_pointer p_next = p_out->m_p_next_sibling;
    69	      other.make_root_and_link(p_out);
    70	      p_out = p_next;
    71	    }
    72	
    73	  PB_DS_ASSERT_VALID(other)
    74	  node_pointer p_cur = base_type::m_p_root;
    75	  m_p_max = 0;
    76	  base_type::m_p_root = 0;
    77	  while (p_cur != 0)
    78	    {
    79	      node_pointer p_next = p_cur->m_p_next_sibling;
    80	      make_root_and_link(p_cur);
    81	      p_cur = p_next;
    82	    }
    83	
    84	  PB_DS_ASSERT_VALID((*this))
    85	  PB_DS_ASSERT_VALID(other)
    86	}
    87	
    88	PB_DS_CLASS_T_DEC
    89	inline void
    90	PB_DS_CLASS_C_DEC::
    91	join(PB_DS_CLASS_C_DEC& other)
    92	{
    93	  PB_DS_ASSERT_VALID((*this))
    94	  PB_DS_ASSERT_VALID(other)
    95	
    96	  node_pointer p_other = other.m_p_root;
    97	  while (p_other != 0)
    98	    {
    99	      node_pointer p_next = p_other->m_p_next_sibling;
   100	      make_root_and_link(p_other);
   101	      p_other = p_next;
   102	    }
   103	  base_type::m_size += other.m_size;
   104	  other.m_p_root = 0;
   105	  other.m_size = 0;
   106	  other.m_p_max = 0;
   107	
   108	  PB_DS_ASSERT_VALID((*this))
   109	  PB_DS_ASSERT_VALID(other)
   110	}
   111	#endif