void read(XMLReader& xml, const string& path, Barcomp_t& input)
void read(XMLReader& xml, const string& path, QQQ_input_t& input)
void read(XMLReader& xml, const string& path, Barcomp_t& input){  XMLReader inputtop(xml, path);  read(inputtop, "qqq_file", input.qqq_file);}