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边缘:指数 对所有edge子来说,零?
原标题:edge_index zero for all edges?

界定我的<代码>boost:图表 同下文一样,我获得所有对口单位的对等指数为零。 为什么? 我做了什么错误?

#include <iostream>
#include <boost/graph/adjacency_list.hpp>

int main() {
    typedef boost::adjacency_list<boost::vecS, boost::vecS, boost::directedS, boost::no_property, boost::property<boost::edge_index_t, std::size_t> > Graph;
    typedef boost::graph_traits<Graph>::edge_descriptor Edge;

    Graph g(3);
    Edge e1 = boost::add_edge(0, 1, g).first;
    Edge e2 = boost::add_edge(1, 2, g).first;
    Edge e3 = boost::add_edge(2, 0, g).first;

    boost::property_map<Graph, boost::edge_index_t>::type eim = boost::get(boost::edge_index, g);
    size_t e1n = eim[e1],
           e2n = eim[e2],
           e3n = eim[e3];

    return 0;
}

就我能够从文件和实例中说明这一点而言,这应当发挥作用。

最佳回答

一位旁观者——名单上的人——只有一张<>垂直>的指数,该指数与该指数相关。 如果你想如何储存图表,那是完全合乎逻辑的。

为了有近指数,你需要人工添加图表说明,然后人工处理。

问题回答

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