c++ - Boost. Multithreading -

class accel{ public:     accel(int threads, string params);  private:     void getfile(int from, int to);     void download(int threads); };   void accel::download(int threads){     boost::thread g(&getfile(0, 1));  //<<<< } 

gives error '&' requires l-value. have been doing example. how make work?

boost::thread g (boost::bind(&accel::getfile, this, 0, 1));