forked from KolibriOS/kolibrios
432e5f16f8
git-svn-id: svn://kolibrios.org@6554 a494cfbc-eb01-0410-851d-a64ba20cac60
180 lines
5.0 KiB
C++
180 lines
5.0 KiB
C++
// -*- C++ -*-
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// Copyright (C) 2005-2015 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 detail/tree_trace_base.hpp
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* Contains tree-related policies.
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*/
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#ifndef PB_DS_TREE_TRACE_BASE_HPP
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#define PB_DS_TREE_TRACE_BASE_HPP
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#ifdef PB_DS_TREE_TRACE
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#include <ext/pb_ds/detail/branch_policy/branch_policy.hpp>
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#include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp>
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namespace __gnu_pbds
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{
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namespace detail
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{
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#ifdef PB_DS_TREE_TRACE
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#define PB_DS_CLASS_T_DEC \
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template<typename Node_CItr, typename Node_Itr, \
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typename Cmp_Fn, bool Node_Based, typename _Alloc>
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#define PB_DS_CLASS_C_DEC \
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tree_trace_base<Node_CItr, Node_Itr, Cmp_Fn, \
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Node_Based, _Alloc>
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#define PB_DS_TRACE_BASE \
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branch_policy<Node_CItr, Node_Itr, _Alloc>
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/// Tracing base class.
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template<typename Node_CItr, typename Node_Itr,
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typename Cmp_Fn, bool Node_Based, typename _Alloc>
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class tree_trace_base : private PB_DS_TRACE_BASE
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{
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public:
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void
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trace() const;
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private:
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typedef PB_DS_TRACE_BASE base_type;
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typedef Node_CItr node_const_iterator;
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typedef typename _Alloc::size_type size_type;
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void
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trace_node(node_const_iterator, size_type) const;
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virtual bool
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empty() const = 0;
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virtual node_const_iterator
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node_begin() const = 0;
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virtual node_const_iterator
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node_end() const = 0;
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static void
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print_node_pointer(Node_CItr, integral_constant<int,true>);
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static void
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print_node_pointer(Node_CItr, integral_constant<int,false>);
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template<typename Metadata_>
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static void
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trace_it_metadata(Node_CItr, type_to_type<Metadata_>);
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static void
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trace_it_metadata(Node_CItr, type_to_type<null_type>);
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};
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PB_DS_CLASS_T_DEC
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void
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PB_DS_CLASS_C_DEC::
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trace() const
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{
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if (empty())
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return;
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trace_node(node_begin(), 0);
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}
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PB_DS_CLASS_T_DEC
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void
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PB_DS_CLASS_C_DEC::
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trace_node(node_const_iterator nd_it, size_type level) const
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{
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if (nd_it.get_r_child() != node_end())
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trace_node(nd_it.get_r_child(), level + 1);
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for (size_type i = 0; i < level; ++i)
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std::cerr << ' ';
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print_node_pointer(nd_it, integral_constant<int,Node_Based>());
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std::cerr << base_type::extract_key(*(*nd_it));
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typedef type_to_type<typename node_const_iterator::metadata_type>
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m_type_ind_t;
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trace_it_metadata(nd_it, m_type_ind_t());
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std::cerr << std::endl;
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if (nd_it.get_l_child() != node_end())
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trace_node(nd_it.get_l_child(), level + 1);
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}
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PB_DS_CLASS_T_DEC
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template<typename Metadata_>
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void
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PB_DS_CLASS_C_DEC::
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trace_it_metadata(Node_CItr nd_it, type_to_type<Metadata_>)
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{
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const unsigned long ul = static_cast<unsigned long>(nd_it.get_metadata());
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std::cerr << " (" << ul << ") ";
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}
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PB_DS_CLASS_T_DEC
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void
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PB_DS_CLASS_C_DEC::
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trace_it_metadata(Node_CItr, type_to_type<null_type>)
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{ }
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PB_DS_CLASS_T_DEC
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void
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PB_DS_CLASS_C_DEC::
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print_node_pointer(Node_CItr nd_it, integral_constant<int,true>)
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{ std::cerr << nd_it.m_p_nd << " "; }
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PB_DS_CLASS_T_DEC
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void
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PB_DS_CLASS_C_DEC::
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print_node_pointer(Node_CItr nd_it, integral_constant<int,false>)
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{ std::cerr << *nd_it << " "; }
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#undef PB_DS_CLASS_T_DEC
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#undef PB_DS_CLASS_C_DEC
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#undef PB_DS_TRACE_BASE
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#endif // #ifdef PB_DS_TREE_TRACE
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} // namespace detail
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} // namespace __gnu_pbds
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#endif // #ifdef PB_DS_TREE_TRACE
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#endif // #ifndef PB_DS_TREE_TRACE_BASE_HPP
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