// -*- C++ -*-
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// Copyright (C) 2005-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// warranty.
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/**
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* @file bin_search_tree_/insert_fn_imps.hpp
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* Contains an implementation class for bin_search_tree_.
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*/
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#ifdef PB_DS_CLASS_C_DEC
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PB_DS_CLASS_T_DEC
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inline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool>
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PB_DS_CLASS_C_DEC::
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insert_leaf(const_reference r_value)
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{
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PB_DS_STRUCT_ONLY_ASSERT_VALID((*this))
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if (m_size == 0)
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return std::make_pair(insert_imp_empty(r_value),
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true);
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node_pointer p_nd = m_p_head->m_p_parent;
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node_pointer p_pot = m_p_head;
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while (p_nd != 0)
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if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value),
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PB_DS_V2F(r_value)))
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{
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p_pot = p_nd;
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p_nd = p_nd->m_p_left;
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}
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else
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p_nd = p_nd->m_p_right;
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if (p_pot == m_p_head)
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return std::make_pair(insert_leaf_new(r_value, m_p_head->m_p_right, false),
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true);
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if (!Cmp_Fn::operator()(PB_DS_V2F(r_value),
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PB_DS_V2F(p_pot->m_value)))
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{
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PB_DS_STRUCT_ONLY_ASSERT_VALID((*this))
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PB_DS_CHECK_KEY_EXISTS(PB_DS_V2F(r_value))
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return std::make_pair(p_pot, false);
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}
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PB_DS_CHECK_KEY_DOES_NOT_EXIST(PB_DS_V2F(r_value))
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p_nd = p_pot->m_p_left;
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if (p_nd == 0)
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return std::make_pair(insert_leaf_new(r_value, p_pot, true),
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true);
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while (p_nd->m_p_right != 0)
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p_nd = p_nd->m_p_right;
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return std::make_pair(insert_leaf_new(r_value, p_nd, false),
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true);
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}
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PB_DS_CLASS_T_DEC
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inline typename PB_DS_CLASS_C_DEC::iterator
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PB_DS_CLASS_C_DEC::
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insert_leaf_new(const_reference r_value, node_pointer p_nd, bool left_nd)
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{
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node_pointer p_new_nd =
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get_new_node_for_leaf_insert(r_value,
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traits_base::m_no_throw_copies_indicator);
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if (left_nd)
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{
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_GLIBCXX_DEBUG_ASSERT(p_nd->m_p_left == 0);
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_GLIBCXX_DEBUG_ASSERT(Cmp_Fn::operator()(PB_DS_V2F(r_value),
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PB_DS_V2F(p_nd->m_value)));
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p_nd->m_p_left = p_new_nd;
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if (m_p_head->m_p_left == p_nd)
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m_p_head->m_p_left = p_new_nd;
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}
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else
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{
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_GLIBCXX_DEBUG_ASSERT(p_nd->m_p_right == 0);
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_GLIBCXX_DEBUG_ASSERT(Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value),
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PB_DS_V2F(r_value)));
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p_nd->m_p_right = p_new_nd;
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if (m_p_head->m_p_right == p_nd)
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m_p_head->m_p_right = p_new_nd;
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}
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p_new_nd->m_p_parent = p_nd;
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p_new_nd->m_p_left = p_new_nd->m_p_right = 0;
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PB_DS_ASSERT_NODE_CONSISTENT(p_nd)
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update_to_top(p_new_nd, (node_update* )this);
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_GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_value));)
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return iterator(p_new_nd);
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}
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PB_DS_CLASS_T_DEC
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inline typename PB_DS_CLASS_C_DEC::iterator
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PB_DS_CLASS_C_DEC::
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insert_imp_empty(const_reference r_value)
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{
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node_pointer p_new_node =
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get_new_node_for_leaf_insert(r_value, traits_base::m_no_throw_copies_indicator);
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m_p_head->m_p_left = m_p_head->m_p_right =
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m_p_head->m_p_parent = p_new_node;
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p_new_node->m_p_parent = m_p_head;
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p_new_node->m_p_left = p_new_node->m_p_right = 0;
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_GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_value));)
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update_to_top(m_p_head->m_p_parent, (node_update*)this);
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return iterator(p_new_node);
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}
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PB_DS_CLASS_T_DEC
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inline typename PB_DS_CLASS_C_DEC::node_pointer
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PB_DS_CLASS_C_DEC::
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get_new_node_for_leaf_insert(const_reference r_val, false_type)
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{
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node_pointer p_new_nd = s_node_allocator.allocate(1);
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cond_dealtor_t cond(p_new_nd);
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new (const_cast<void* >(static_cast<const void* >(&p_new_nd->m_value)))
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typename node::value_type(r_val);
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cond.set_no_action();
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p_new_nd->m_p_left = p_new_nd->m_p_right = 0;
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++m_size;
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return p_new_nd;
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}
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PB_DS_CLASS_T_DEC
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inline typename PB_DS_CLASS_C_DEC::node_pointer
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PB_DS_CLASS_C_DEC::
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get_new_node_for_leaf_insert(const_reference r_val, true_type)
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{
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node_pointer p_new_nd = s_node_allocator.allocate(1);
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new (const_cast<void* >(static_cast<const void* >(&p_new_nd->m_value)))
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typename node::value_type(r_val);
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p_new_nd->m_p_left = p_new_nd->m_p_right = 0;
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++m_size;
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return p_new_nd;
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}
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#endif
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