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我有下面的代碼錯誤使用屬性映射在Boost圖庫
typedef property<symbol_t,string,property <message_t,string> > edge_properties;
typedef property<vertex_name_t,string> vertex_properties;
typedef adjacency_list<listS,listS,directedS,vertex_properties,edge_properties> Graph;
Graph automata;
property_map(Graph,vertex_name_t) :: type state_name_map = get(vertex_name_t,automata);
這應該工作,但我得到了以下錯誤
error: ISO C++ forbids declaration of ‘property_map’ with no type [-fpermissive]
xml2automata.cpp:30:37: error: expected ‘;’ at end of member declaration
xml2automata.cpp:30:39: error: invalid use of template-name ‘boost::type’ without an
argument list