]> oss.titaniummirror.com Git - msp430-gcc.git/blobdiff - libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp
Imported gcc-4.4.3
[msp430-gcc.git] / libstdc++-v3 / include / ext / pb_ds / detail / bin_search_tree_ / insert_fn_imps.hpp
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/bin_search_tree_/insert_fn_imps.hpp
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+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software
+// Foundation; either version 3, or (at your option) any later
+// version.
+
+// This library is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
+
+// Permission to use, copy, modify, sell, and distribute this software
+// is hereby granted without fee, provided that the above copyright
+// notice appears in all copies, and that both that copyright notice
+// and this permission notice appear in supporting documentation. None
+// of the above authors, nor IBM Haifa Research Laboratories, make any
+// representation about the suitability of this software for any
+// purpose. It is provided "as is" without express or implied
+// warranty.
+
+/**
+ * @file insert_fn_imps.hpp
+ * Contains an implementation class for bin_search_tree_.
+ */
+
+PB_DS_CLASS_T_DEC
+inline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool>
+PB_DS_CLASS_C_DEC::
+insert_leaf(const_reference r_value)
+{
+  _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();)
+
+    if (m_size == 0)
+      return (std::make_pair(
+                            insert_imp_empty(r_value),
+                            true));
+
+  node_pointer p_nd = m_p_head->m_p_parent;
+  node_pointer p_pot = m_p_head;
+
+  while (p_nd != NULL)
+    if (!Cmp_Fn::operator()(
+                           PB_DS_V2F(p_nd->m_value),
+                           PB_DS_V2F(r_value)))
+      {
+       p_pot = p_nd;
+
+       p_nd = p_nd->m_p_left;
+      }
+    else
+      p_nd = p_nd->m_p_right;
+
+  if (p_pot == m_p_head)
+    return (std::make_pair(
+                          insert_leaf_new(r_value,  m_p_head->m_p_right, false),
+                          true));
+
+  if (!Cmp_Fn::operator()(
+                         PB_DS_V2F(r_value),
+                         PB_DS_V2F(p_pot->m_value)))
+    {
+      _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();)
+
+        _GLIBCXX_DEBUG_ONLY(debug_base::check_key_exists(
+                                                       PB_DS_V2F(r_value)));
+
+      return (std::make_pair(p_pot, false));
+    }
+
+  _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(
+                                                         PB_DS_V2F(r_value)));
+
+  p_nd = p_pot->m_p_left;
+  if (p_nd == NULL)
+    return (std::make_pair(
+                          insert_leaf_new(r_value, p_pot, true),
+                          true));
+
+  while (p_nd->m_p_right != NULL)
+    p_nd = p_nd->m_p_right;
+
+  return (std::make_pair(
+                        insert_leaf_new(r_value, p_nd, false),
+                        true));
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::iterator
+PB_DS_CLASS_C_DEC::
+insert_leaf_new(const_reference r_value, node_pointer p_nd, bool left_nd)
+{
+  node_pointer p_new_nd =
+    get_new_node_for_leaf_insert(            r_value, traits_base::m_no_throw_copies_indicator);
+
+  if (left_nd)
+    {
+      _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_left == NULL);
+      _GLIBCXX_DEBUG_ASSERT(Cmp_Fn::operator()(
+                                         PB_DS_V2F(r_value),
+                                         PB_DS_V2F(p_nd->m_value)));
+
+      p_nd->m_p_left = p_new_nd;
+
+      if (m_p_head->m_p_left == p_nd)
+       m_p_head->m_p_left = p_new_nd;
+    }
+  else
+    {
+      _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_right == NULL);
+      _GLIBCXX_DEBUG_ASSERT(Cmp_Fn::operator()(
+                                         PB_DS_V2F(p_nd->m_value),
+                                         PB_DS_V2F(r_value)));
+
+      p_nd->m_p_right = p_new_nd;
+
+      if (m_p_head->m_p_right == p_nd)
+       m_p_head->m_p_right = p_new_nd;
+    }
+
+  p_new_nd->m_p_parent = p_nd;
+
+  p_new_nd->m_p_left = p_new_nd->m_p_right = NULL;
+
+  _GLIBCXX_DEBUG_ONLY(assert_node_consistent(p_nd));
+
+  update_to_top(p_new_nd, (node_update* )this);
+
+  _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(
+                                           PB_DS_V2F(r_value)));
+
+  return (iterator(p_new_nd));
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::iterator
+PB_DS_CLASS_C_DEC::
+insert_imp_empty(const_reference r_value)
+{
+  node_pointer p_new_node =
+    get_new_node_for_leaf_insert(        r_value, traits_base::m_no_throw_copies_indicator);
+
+  m_p_head->m_p_left = m_p_head->m_p_right =
+    m_p_head->m_p_parent = p_new_node;
+
+  p_new_node->m_p_parent = m_p_head;
+
+  p_new_node->m_p_left = p_new_node->m_p_right = NULL;
+
+  _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(
+                                           PB_DS_V2F(r_value)));
+
+  update_to_top(m_p_head->m_p_parent, (node_update* )this);
+
+  return (iterator(p_new_node));
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::node_pointer
+PB_DS_CLASS_C_DEC::
+get_new_node_for_leaf_insert(const_reference r_val, false_type)
+{
+  node_pointer p_new_nd = s_node_allocator.allocate(1);
+
+  cond_dealtor_t cond(p_new_nd);
+
+  new (const_cast<void* >(
+                         static_cast<const void* >(&p_new_nd->m_value)))
+    typename node::value_type(r_val);
+
+  cond.set_no_action();
+
+  p_new_nd->m_p_left = p_new_nd->m_p_right = NULL;
+
+  ++m_size;
+
+  return (p_new_nd);
+}
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::node_pointer
+PB_DS_CLASS_C_DEC::
+get_new_node_for_leaf_insert(const_reference r_val, true_type)
+{
+  node_pointer p_new_nd = s_node_allocator.allocate(1);
+
+  new (const_cast<void* >(
+                         static_cast<const void* >(&p_new_nd->m_value)))
+    typename node::value_type(r_val);
+
+  p_new_nd->m_p_left = p_new_nd->m_p_right = NULL;
+
+  ++m_size;
+
+  return (p_new_nd);
+}
+