Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / include / ext / pb_ds / detail / rc_binomial_heap_ / insert_fn_imps.hpp

diff --git a/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp
new file mode 100644 (file)
index 0000000..aef4b92
--- /dev/null
+++ b/libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp
@@ -0,0 +1,154 @@
+// -*- 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 for rc_binomial_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();)
+
+    make_0_exposed();
+
+  _GLIBCXX_DEBUG_ONLY(assert_valid();)
+
+    node_pointer p_nd = base_type::get_new_node_for_insert(r_val);
+
+  p_nd->m_p_l_child = p_nd->m_p_prev_or_parent = NULL;
+  p_nd->m_metadata = 0;
+
+  if (base_type::m_p_max == NULL || Cmp_Fn::operator()(base_type::m_p_max->m_value, r_val))
+    base_type::m_p_max = p_nd;
+
+  p_nd->m_p_next_sibling = base_type::m_p_root;
+
+  if (base_type::m_p_root != NULL)
+    base_type::m_p_root->m_p_prev_or_parent = p_nd;
+
+  base_type::m_p_root = p_nd;
+
+  if (p_nd->m_p_next_sibling != NULL&&  p_nd->m_p_next_sibling->m_metadata == 0)
+    m_rc.push(p_nd);
+
+  _GLIBCXX_DEBUG_ONLY(assert_valid();)
+
+    return point_iterator(p_nd);
+}
+
+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();)
+
+    make_binomial_heap();
+
+  base_type::modify(it, r_new_val);
+
+  base_type::find_max();
+
+  _GLIBCXX_DEBUG_ONLY(assert_valid();)
+    }
+
+PB_DS_CLASS_T_DEC
+inline typename PB_DS_CLASS_C_DEC::node_pointer
+PB_DS_CLASS_C_DEC::
+link_with_next_sibling(node_pointer p_nd)
+{
+  node_pointer p_next = p_nd->m_p_next_sibling;
+
+  _GLIBCXX_DEBUG_ASSERT(p_next != NULL);
+  _GLIBCXX_DEBUG_ASSERT(p_next->m_p_prev_or_parent == p_nd);
+
+  if (Cmp_Fn::operator()(p_nd->m_value, p_next->m_value))
+    {
+      p_next->m_p_prev_or_parent = p_nd->m_p_prev_or_parent;
+
+      if (p_next->m_p_prev_or_parent == NULL)
+       base_type::m_p_root = p_next;
+      else
+       p_next->m_p_prev_or_parent->m_p_next_sibling = p_next;
+
+      if (base_type::m_p_max == p_nd)
+       base_type::m_p_max = p_next;
+
+      base_type::make_child_of(p_nd, p_next);
+
+      ++p_next->m_metadata;
+
+      return p_next;
+    }
+
+  p_nd->m_p_next_sibling = p_next->m_p_next_sibling;
+
+  if (p_nd->m_p_next_sibling != NULL)
+    p_nd->m_p_next_sibling->m_p_prev_or_parent = p_nd;
+
+  if (base_type::m_p_max == p_next)
+    base_type::m_p_max = p_nd;
+
+  base_type::make_child_of(p_next, p_nd);
+
+  ++p_nd->m_metadata;
+
+  return p_nd;
+}
+
+PB_DS_CLASS_T_DEC
+void
+PB_DS_CLASS_C_DEC::
+make_0_exposed()
+{
+  if (m_rc.empty())
+    return;
+
+  node_pointer p_nd = m_rc.top();
+
+  m_rc.pop();
+
+  _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_next_sibling != NULL);
+  _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata == p_nd->m_p_next_sibling->m_metadata);
+
+  node_pointer p_res = link_with_next_sibling(p_nd);
+
+  if (p_res->m_p_next_sibling != NULL&&  p_res->m_metadata == p_res->m_p_next_sibling->m_metadata)
+    m_rc.push(p_res);
+}