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incidence_iterator.hpp - Hosted on DriveHQ Cloud IT Platform
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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\graph\detail\incidence_iterator.hpp
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// //======================================================================= // Copyright 1997, 1998, 1999, 2000 University of Notre Dame. // Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek // // Distributed under the Boost Software License, Version 1.0. (See // accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) //======================================================================= // #ifndef BOOST_GRAPH_DETAIL_INCIDENCE_ITERATOR_HPP #define BOOST_GRAPH_DETAIL_INCIDENCE_ITERATOR_HPP #include
#include
// OBSOLETE namespace boost { namespace detail { // EdgeDir tags struct in_edge_tag { }; struct out_edge_tag { }; template
struct bidir_incidence_iterator { typedef bidir_incidence_iterator self; typedef Edge edge_type; typedef typename Edge::property_type EdgeProperty; public: typedef int difference_type; typedef std::forward_iterator_tag iterator_category; typedef edge_type reference; typedef edge_type value_type; typedef value_type* pointer; inline bidir_incidence_iterator() {} inline bidir_incidence_iterator(Iterator1D ii, Vertex src) : i(ii), _src(src) { } inline self& operator++() { ++i; return *this; } inline self operator++(int) { self tmp = *this; ++(*this); return tmp; } inline reference operator*() const { return deref_helper(EdgeDir()); } inline self* operator->() { return this; } Iterator1D& iter() { return i; } const Iterator1D& iter() const { return i; } Iterator1D i; Vertex _src; protected: inline reference deref_helper(out_edge_tag) const { return edge_type( _src, (*i).get_target(), &(*i).get_property() ); } inline reference deref_helper(in_edge_tag) const { return edge_type((*i).get_target(), _src, &(*i).get_property() ); } }; template
inline bool operator==(const bidir_incidence_iterator
& x, const bidir_incidence_iterator
& y) { return x.i == y.i; } template
inline bool operator!=(const bidir_incidence_iterator
& x, const bidir_incidence_iterator
& y) { return x.i != y.i; } } } #endif
incidence_iterator.hpp
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