f_round_common   1333 rational.c         return f_round_common(argc, argv, self, nurat_floor);
f_round_common   1357 rational.c         return f_round_common(argc, argv, self, nurat_ceil);
f_round_common   1381 rational.c         return f_round_common(argc, argv, self, nurat_truncate);
f_round_common   1406 rational.c         return f_round_common(argc, argv, self, nurat_round);