--- /dev/null
+// -*- 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 a binary_heap.
+ */
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::point_iterator
+PB_DS_CLASS_C_DEC::
+push(const_reference r_val)
+{
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ insert_value(r_val, s_no_throw_copies_ind);
+ std::push_heap(m_a_entries, m_a_entries + m_size,
+ static_cast<entry_cmp&>(*this));
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ return point_iterator(m_a_entries);
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+insert_value(value_type val, true_type)
+{
+ resize_for_insert_if_needed();
+
+ m_a_entries[m_size++] = val;
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+insert_value(const_reference r_val, false_type)
+{
+ resize_for_insert_if_needed();
+ pointer p_new = s_value_allocator.allocate(1);
+ cond_dealtor_t cond(p_new);
+ new (p_new) value_type(r_val);
+ cond.set_no_action();
+ m_a_entries[m_size++] = p_new;
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+insert_entry(entry e)
+{
+ resize_for_insert_if_needed();
+ m_a_entries[m_size++] = e;
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+resize_for_insert_if_needed()
+{
+ if (!resize_policy::resize_needed_for_grow(m_size))
+ {
+ _GLIBCXX_DEBUG_ASSERT(m_size < m_actual_size);
+ return;
+ }
+
+ const size_type new_actual_size = resize_policy::get_new_size_for_grow();
+ entry_pointer a_new_entries = s_entry_allocator.allocate(new_actual_size);
+ resize_policy::notify_grow_resize();
+ std::copy(m_a_entries, m_a_entries + m_size, a_new_entries);
+ s_entry_allocator.deallocate(m_a_entries, m_actual_size);
+ m_actual_size = new_actual_size;
+ m_a_entries = a_new_entries;
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+modify(point_iterator it, const_reference r_new_val)
+{
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ swap_value_imp(it.m_p_e, r_new_val, s_no_throw_copies_ind);
+ fix(it.m_p_e);
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+fix(entry_pointer p_e)
+{
+ size_type i = p_e - m_a_entries;
+ if (i > 0 && entry_cmp::operator()(m_a_entries[parent(i)], m_a_entries[i]))
+ {
+ size_type parent_i = parent(i);
+ while (i > 0
+ && entry_cmp::operator()(m_a_entries[parent_i], m_a_entries[i]))
+ {
+ std::swap(m_a_entries[i], m_a_entries[parent_i]);
+ i = parent_i;
+ parent_i = parent(i);
+ }
+
+ _GLIBCXX_DEBUG_ONLY(assert_valid();)
+ return;
+ }
+
+ while (i < m_size)
+ {
+ const size_type left_child_i = left_child(i);
+ const size_type right_child_i = right_child(i);
+ _GLIBCXX_DEBUG_ASSERT(right_child_i > left_child_i);
+ const bool smaller_than_left_child = left_child_i < m_size &&
+ entry_cmp::operator()(m_a_entries[i], m_a_entries[left_child_i]);
+
+ const bool smaller_than_right_child = right_child_i < m_size &&
+ entry_cmp::operator()(m_a_entries[i], m_a_entries[right_child_i]);
+
+ const bool swap_with_r_child = smaller_than_right_child && (!smaller_than_left_child || entry_cmp::operator()(m_a_entries[left_child_i], m_a_entries[right_child_i]));
+
+ const bool swap_with_l_child = !swap_with_r_child && smaller_than_left_child;
+
+ if (swap_with_l_child)
+ {
+ std::swap(m_a_entries[i], m_a_entries[left_child_i]);
+ i = left_child_i;
+ }
+ else if (swap_with_r_child)
+ {
+ std::swap(m_a_entries[i], m_a_entries[right_child_i]);
+ i = right_child_i;
+ }
+ else
+ i = m_size;
+ }
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+swap_value_imp(entry_pointer p_e, value_type new_val, true_type)
+{
+ * p_e = new_val;
+}
+
+PB_DS_CLASS_T_DEC
+inline void
+PB_DS_CLASS_C_DEC::
+swap_value_imp(entry_pointer p_e, const_reference r_new_val, false_type)
+{
+ value_type tmp(r_new_val);
+ (*p_e)->swap(tmp);
+}
projects / msp430-gcc.git / blobdiff