c++ - boost string type mismatch -


in followring code, 

class monitorresult { public:     void putdir(std::string && dir) { } };  void listdir(boost::filesystem::path && dir, monitorresult & result) {      for(boost::filesystem::directory_iterator it(dir);         != boost::filesystem::directory_iterator(); ++it) {         if(boost::filesystem::is_symlink( it->path()) ) {             continue;         }         else if(boost::filesystem::is_directory(it->path())) {             result.putdir(it->path().string() );  // error here         }     } }

error: no matching function call monitorresult::putdir(const string&) candidate void monitorresult::putdir(std::string&&)

i not getting std::string, string. how can type error resolved? thanks.


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