Question

我试图用read_graphviz做一个例子但是我无法帮助链接器将read_graphviz函数调用链接到正确的版本read_graphviz。

在http://www.boost.org/doc/libs/1_61_0/libs/graph/doc/read_graphviz.html，有四个模板版本的read_graphviz： namespace boost {

  template <typename MutableGraph>
  bool read_graphviz(std::istream& in, MutableGraph& graph,
                     dynamic_properties& dp,
                     const std::string& node_id = "node_id");

  template <typename MutableGraph>
  bool read_graphviz(std::string& str, MutableGraph& graph,
                     dynamic_properties& dp,
                     const std::string& node_id = "node_id");

  template <typename InputIterator, typename MutableGraph>
  bool read_graphviz(InputIterator begin, InputIterator end,
                     MutableGraph& graph, dynamic_properties& dp,
                     const std::string& node_id = "node_id");
}

我正在尝试调用它的第二个版本。这是我的示例代码：

#include <boost/graph/graphviz.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/graph/adjacency_list.hpp>
#include <boost/property_map/dynamic_property_map.hpp>
#include <boost/graph/graph_utility.hpp>

using namespace boost;

typedef boost::adjacency_list < 
    boost::vecS,
    boost::vecS,
    boost::undirectedS,
    boost::property<boost::vertex_index_t, int>,
    boost::property<boost::edge_index_t, int>> Graph;


int main(int argc, char** argv)
{

  Graph dual_g;

  boost::dynamic_properties dp;

  boost::property_map<Graph, boost::vertex_index_t>::type vIndex = get(boost::vertex_index, dual_g);
  dp.property("vertex_id",vIndex);

  boost::property_map<Graph, boost::edge_index_t>::type eIndex = get(boost::edge_index, dual_g);
  dp.property("edge_id", eIndex);

  read_graphviz("dtest.dot", dual_g , dp); //, "node_id");


  return 0;
}

我尝试使用命令编译：

g++ -std=c++11 main.cpp -o main -lboost_system

错误：

/tmp/cctwokpF.o: In function `bool boost::read_graphviz_new<boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_index_t, int, boost::no_property>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS> >(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, boost::property<boost::vertex_index_t, int, boost::no_property>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS>&, boost::dynamic_properties&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
main.cpp:(.text._ZN5boost17read_graphviz_newINS_14adjacency_listINS_4vecSES2_NS_11undirectedSENS_8propertyINS_14vertex_index_tEiNS_11no_propertyEEENS4_INS_12edge_index_tEiS6_EES6_NS_5listSEEEEEbRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERT_RNS_18dynamic_propertiesESJ_[_ZN5boost17read_graphviz_newINS_14adjacency_listINS_4vecSES2_NS_11undirectedSENS_8propertyINS_14vertex_index_tEiNS_11no_propertyEEENS4_INS_12edge_index_tEiS6_EES6_NS_5listSEEEEEbRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERT_RNS_18dynamic_propertiesESJ_]+0x80): undefined reference to `boost::detail::graph::read_graphviz_new(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, boost::detail::graph::mutate_graph*)'
collect2: error: ld returned 1 exit status

Answer 1

您需要链接函数的实现。

最简单的方法是包含它：

#include  <libs/graph/src/read_graphviz_new.cpp>

如果您想要更多样本作为灵感：read_graphviz src

无法为read_graphviz（）示例链接Boost Graph Library

1 个答案: