Boost graph wrapper compilation error

Question

I'm a beginner in boost graph library and I got the following error while compiling :

mytree.cpp:80: error: expected init-declarator before '<' token

Here is the wrong line :

typedef boost::labeled_graph<adjacency_list<vecS, vecS, bidirectionalS, VertexDesc>,std::string> Graph;

May someone help me?

Thanks in advance.

Answer 1

对于那些感兴趣的人，我只是忘记添加以下行：

#include <boost/graph/labeled_graph.hpp>