c_virtual_sg 1108 ext/date/date_core.c return c_virtual_sg(x); c_virtual_sg 1241 ext/date/date_core.c c_virtual_sg(x), &jd, &ns); c_virtual_sg 1244 ext/date/date_core.c c_virtual_sg(x), &jd, &ns); c_virtual_sg 1277 ext/date/date_core.c c_jd_to_civil(jd, c_virtual_sg(x), &y, &m, &d); c_virtual_sg 1663 ext/date/date_core.c sg = c_virtual_sg(x);