ratio_subtract 54 uspace/lib/cpp/src/__bits/test/ratio.cpp std::ratio_subtract<std::ratio<2, 3>, std::ratio<1, 6>>::num, ratio_subtract 59 uspace/lib/cpp/src/__bits/test/ratio.cpp std::ratio_subtract<std::ratio<2, 3>, std::ratio<1, 6>>::den,HelenOS homepage, sources at GitHub