author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
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// |
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//======================================================================= |
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// Copyright 1997, 1998, 1999, 2000 University of Notre Dame. |
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// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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//======================================================================= |
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// |
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#ifndef BOOST_GRAPH_MATRIX2GRAPH_HPP |
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#define BOOST_GRAPH_MATRIX2GRAPH_HPP |
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|
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#include <utility> |
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#include <boost/config.hpp> |
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#include <boost/operators.hpp> |
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#include <boost/int_iterator.hpp> |
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#include <boost/graph/graph_traits.hpp> |
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namespace boost { |
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template <class Iter, class Vertex> |
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class matrix_adj_iterator; |
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template <class Iter, class Vertex> |
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class matrix_incidence_iterator; |
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} |
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#define BOOST_GRAPH_ADAPT_MATRIX_TO_GRAPH(Matrix) \ |
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namespace boost { \ |
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template <> \ |
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struct graph_traits< Matrix > { \ |
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typedef Matrix::OneD::const_iterator Iter; \ |
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typedef Matrix::size_type V; \ |
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typedef V vertex_descriptor; \ |
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typedef Iter E; \ |
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typedef E edge_descriptor; \ |
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typedef boost::matrix_incidence_iterator<Iter, V> out_edge_iterator; \ |
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typedef boost::matrix_adj_iterator<Iter, V> adjacency_iterator; \ |
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typedef Matrix::size_type size_type; \ |
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typedef boost::int_iterator<size_type> vertex_iterator; \ |
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\ |
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friend std::pair<vertex_iterator, vertex_iterator> \ |
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vertices(const Matrix& g) { \ |
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typedef vertex_iterator VIter; \ |
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return std::make_pair(VIter(0), VIter(g.nrows())); \ |
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} \ |
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\ |
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friend std::pair<out_edge_iterator, out_edge_iterator> \ |
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out_edges(V v, const Matrix& g) { \ |
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typedef out_edge_iterator IncIter; \ |
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return std::make_pair(IncIter(g[v].begin()), \ |
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IncIter(g[v].end())); \ |
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} \ |
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friend std::pair<adjacency_iterator, adjacency_iterator> \ |
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adjacent_vertices(V v, const Matrix& g) { \ |
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typedef adjacency_iterator AdjIter; \ |
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return std::make_pair(AdjIter(g[v].begin()), \ |
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AdjIter(g[v].end())); \ |
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} \ |
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friend vertex_descriptor \ |
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source(E e, const Matrix& g) { \ |
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return e.row(); \ |
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} \ |
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friend vertex_descriptor \ |
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target(E e, const Matrix& g) { \ |
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return e.column(); \ |
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} \ |
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friend size_type \ |
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num_vertices(const Matrix& g) { \ |
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return g.nrows(); \ |
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} \ |
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friend size_type \ |
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num_edges(const Matrix& g) { \ |
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return g.nnz(); \ |
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} \ |
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friend size_type \ |
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out_degree(V i, const Matrix& g) { \ |
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return g[i].nnz(); \ |
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} \ |
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}; \ |
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} |
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namespace boost { |
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template <class Iter, class Vertex> |
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class matrix_adj_iterator |
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: public std::iterator<std::input_iterator_tag, Vertex > |
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{ |
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typedef matrix_adj_iterator self; |
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public: |
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matrix_adj_iterator() { } |
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matrix_adj_iterator(Iter i) : _iter(i) { } |
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matrix_adj_iterator(const self& x) : _iter(x._iter) { } |
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self& operator=(const self& x) { _iter = x._iter; return *this; } |
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Vertex operator*() { return _iter.column(); } |
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self& operator++() { ++_iter; return *this; } |
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self operator++(int) { self t = *this; ++_iter; return t; } |
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bool operator==(const self& x) const { return _iter == x._iter; } |
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bool operator!=(const self& x) const { return _iter != x._iter; } |
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protected: |
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Iter _iter; |
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}; |
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|
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template <class Iter, class Vertex> |
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class matrix_incidence_iterator |
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: public std::iterator<std::input_iterator_tag, Iter > |
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{ |
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typedef matrix_incidence_iterator self; |
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public: |
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matrix_incidence_iterator() { } |
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matrix_incidence_iterator(Iter i) : _iter(i) { } |
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matrix_incidence_iterator(const self& x) : _iter(x._iter) { } |
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self& operator=(const self& x) { _iter = x._iter; return *this; } |
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Iter operator*() { return _iter; } |
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self& operator++() { ++_iter; return *this; } |
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self operator++(int) { self t = *this; ++_iter; return t; } |
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bool operator==(const self& x) const { return _iter == x._iter; } |
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bool operator!=(const self& x) const { return _iter != x._iter; } |
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protected: |
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Iter _iter; |
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}; |
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|
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} /* namespace boost */ |
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|
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#endif /* BOOST_GRAPH_MATRIX2GRAPH_HPP*/ |