--- /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 tree_trace_base.hpp
+ * Contains tree-related policies.
+ */
+
+#ifndef PB_DS_TREE_TRACE_BASE_HPP
+#define PB_DS_TREE_TRACE_BASE_HPP
+
+#ifdef PB_DS_TREE_TRACE
+
+#include <ext/pb_ds/detail/basic_tree_policy/basic_tree_policy_base.hpp>
+#include <ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp>
+
+namespace __gnu_pbds
+{
+
+ namespace detail
+ {
+
+#ifdef PB_DS_TREE_TRACE
+
+#define PB_DS_CLASS_T_DEC \
+ template< \
+ class Const_Node_Iterator, \
+ class Node_Iterator, \
+ class Cmp_Fn, \
+ bool Node_Based, \
+ class Allocator>
+
+#define PB_DS_CLASS_C_DEC \
+ tree_trace_base< \
+ Const_Node_Iterator, \
+ Node_Iterator, \
+ Cmp_Fn, \
+ Node_Based, \
+ Allocator>
+
+#define PB_DS_BASE_C_DEC \
+ basic_tree_policy_base< \
+ Const_Node_Iterator, \
+ Node_Iterator, \
+ Allocator>
+
+ template<typename Const_Node_Iterator,
+ class Node_Iterator,
+ class Cmp_Fn,
+ bool Node_Based,
+ class Allocator>
+ class tree_trace_base : private PB_DS_BASE_C_DEC
+ {
+ public:
+ void
+ trace() const;
+
+ private:
+ typedef PB_DS_BASE_C_DEC base_type;
+
+ typedef Const_Node_Iterator const_node_iterator;
+
+ typedef typename Allocator::size_type size_type;
+
+ private:
+ void
+ trace_node(const_node_iterator nd_it, size_type level) const;
+
+ virtual bool
+ empty() const = 0;
+
+ virtual const_node_iterator
+ node_begin() const = 0;
+
+ virtual const_node_iterator
+ node_end() const = 0;
+
+ static void
+ print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,true>);
+
+ static void
+ print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,false>);
+
+ template<typename Metadata_>
+ static void
+ trace_it_metadata(Const_Node_Iterator nd_it, type_to_type<Metadata_>);
+
+ static void
+ trace_it_metadata(Const_Node_Iterator, type_to_type<null_node_metadata>);
+ };
+
+ PB_DS_CLASS_T_DEC
+ void
+ PB_DS_CLASS_C_DEC::
+ trace() const
+ {
+ if (empty())
+ return;
+
+ trace_node(node_begin(), 0);
+ }
+
+ PB_DS_CLASS_T_DEC
+ void
+ PB_DS_CLASS_C_DEC::
+ trace_node(const_node_iterator nd_it, size_type level) const
+ {
+ if (nd_it.get_r_child() != node_end())
+ trace_node(nd_it.get_r_child(), level + 1);
+
+ for (size_type i = 0; i < level; ++i)
+ std::cerr << ' ';
+
+ print_node_pointer(nd_it, integral_constant<int,Node_Based>());
+ std::cerr << base_type::extract_key(*(*nd_it));
+
+ typedef
+ type_to_type<
+ typename const_node_iterator::metadata_type>
+ m_type_ind_t;
+
+ trace_it_metadata(nd_it, m_type_ind_t());
+
+ std::cerr << std::endl;
+
+ if (nd_it.get_l_child() != node_end())
+ trace_node(nd_it.get_l_child(), level + 1);
+ }
+
+ PB_DS_CLASS_T_DEC
+ template<typename Metadata_>
+ void
+ PB_DS_CLASS_C_DEC::
+ trace_it_metadata(Const_Node_Iterator nd_it, type_to_type<Metadata_>)
+ {
+ std::cerr << " (" <<
+ static_cast<unsigned long>(nd_it.get_metadata()) << ") ";
+ }
+
+ PB_DS_CLASS_T_DEC
+ void
+ PB_DS_CLASS_C_DEC::
+ trace_it_metadata(Const_Node_Iterator, type_to_type<null_node_metadata>)
+ { }
+
+ PB_DS_CLASS_T_DEC
+ void
+ PB_DS_CLASS_C_DEC::
+ print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,true>)
+ {
+ std::cerr << nd_it.m_p_nd << " ";
+ }
+
+ PB_DS_CLASS_T_DEC
+ void
+ PB_DS_CLASS_C_DEC::
+ print_node_pointer(Const_Node_Iterator nd_it, integral_constant<int,false>)
+ {
+ std::cerr <<* nd_it << " ";
+ }
+
+#undef PB_DS_CLASS_T_DEC
+
+#undef PB_DS_CLASS_C_DEC
+
+#undef PB_DS_BASE_C_DEC
+
+#endif // #ifdef PB_DS_TREE_TRACE
+
+ } // namespace detail
+
+} // namespace __gnu_pbds
+
+#endif // #ifdef PB_DS_TREE_TRACE
+
+#endif // #ifndef PB_DS_TREE_TRACE_BASE_HPP
+
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