<< (long) ((tms2.tms_utime) - (tms1.tms_utime))
<< std::endl;
// ----------------------------------------
std::cout << "Use reference function" << std::endl;
<< (long) ((tms2.tms_utime) - (tms1.tms_utime))
<< std::endl;
// ----------------------------------------
std::cout << "Use reference function" << std::endl;